WO1995000066A1 - Endoscope with reusable core and disposable sheath with passageways - Google Patents

Endoscope with reusable core and disposable sheath with passageways Download PDF

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Publication number
WO1995000066A1
WO1995000066A1 PCT/US1994/006720 US9406720W WO9500066A1 WO 1995000066 A1 WO1995000066 A1 WO 1995000066A1 US 9406720 W US9406720 W US 9406720W WO 9500066 A1 WO9500066 A1 WO 9500066A1
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WO
WIPO (PCT)
Prior art keywords
housing
distal end
proximal end
image sensor
further including
Prior art date
Application number
PCT/US1994/006720
Other languages
French (fr)
Inventor
Edwin L. Adair
Original Assignee
Adair Edwin Lloyd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Adair Edwin Lloyd filed Critical Adair Edwin Lloyd
Publication of WO1995000066A1 publication Critical patent/WO1995000066A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00147—Holding or positioning arrangements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/00073—Insertion part of the endoscope body with externally grooved shaft
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00082—Balloons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00101—Insertion part of the endoscope body characterised by distal tip features the distal tip features being detachable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00105—Constructional details of the endoscope body characterised by modular construction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00131—Accessories for endoscopes
    • A61B1/00135—Oversleeves mounted on the endoscope prior to insertion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00131—Accessories for endoscopes
    • A61B1/0014—Fastening element for attaching accessories to the outside of an endoscope, e.g. clips, clamps or bands
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00142—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with means for preventing contamination, e.g. by using a sanitary sheath
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00147—Holding or positioning arrangements
    • A61B1/00151—Holding or positioning arrangements using everted tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00147—Holding or positioning arrangements
    • A61B1/00158—Holding or positioning arrangements using magnetic field
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00163—Optical arrangements
    • A61B1/00174—Optical arrangements characterised by the viewing angles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
    • A61B1/015—Control of fluid supply or evacuation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
    • A61B1/018—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor for receiving instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A61B1/042—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by a proximal camera, e.g. a CCD camera
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/12—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00163—Optical arrangements
    • A61B1/00188—Optical arrangements with focusing or zooming features

Definitions

  • This invention relates to an endoscope, and more particularly to a endoscope with a separable and disposable, initially sterile outer sheath containing one or more passageways and a reusable inner core which contains optics, image sensor and electronics.
  • endoscope must be sterilized or at least disinfected after use with each patient prior to use with the next patient.
  • One protocol for pre-operative preparation involves immersing the endoscope in a disinfectant solution for a predetermined period of time. It is also important to flush the channels which carry gases or fluids and those channels which are used for receiving operative instruments.
  • Another protocol is to heat sterilize the endoscope by placing it in an autoclave.
  • the optics and electronics of many endoscopes will not permit them to be subjected to heat sterilization.
  • the endoscope is not placed in the disinfecting solution for a sufficient length of time nor are the channels flushed out completely, because of the urgency to get the endoscope back into service as soon as possible.
  • an improved endoscope in one configuration which includes an elongated cylindrical hermetically sealed core which includes a cylindrical housing with an objective lens at housing or the distal end thereof.
  • An image sensor and associated electronics e.g., a circuit board, is slidably mounted adjacent the objective lens within the housing.
  • a transmitting electronic cable with multiple conductors each have a distal end connected to the image sensor electronics and a proximal end connected to a video control unit. From the video control unit signals are transmitted to the video monitor which displays the image in black and white or color.
  • a separable outer cylindrical sheath which is provided in a sterile condition, removably receives the core in a defined relationship and the sheath has at least one longitudinal channel for transmitting fluids or for receiving an operative instrument or carrying a light transmitting fiber.
  • a flexible or rigid tube is connected to the proximal end of the channel for supplying fluid or for manipulating the operative instrument from a remote location.
  • the separable sheath is disposable after use on a patient and the core is prepared for reuse with another sterile sheath on the next patient.
  • Light transmitting fibers can be integral with the core or inserted in one of the channels in the sheath.
  • a connection may be provided at the distal end of the housing for selective mounting of lens attachments which may provide straight ahead or angled fields of view. This selection of lenses are mounted outside of the sealed terminal window of the device.
  • a rod inside of a tube or two thin walled concentric tubes extend proximally from the housing, or core, with electronic cables extending through the hollow interior of the core.
  • the rod or tubes can have a connecting means releasable interconnecting the proximal end of the rod or tubes to the proximal end of the sheath. This connection may be the method of threads or by a bayonet attachment or by other means.
  • the threaded tube within a tube, or the rod within a tube allows attachment of the outer layer of the core to the objective leans.
  • the inner tube or rod is then attached to the CCD device allowing the threads to be used to either separate the lens from the CCD device or to bring them together.
  • This arrangement allows the device to have a sharp focusing capability. Longitudinal movement of the CCD in relationship to the optic lens is essential to obtaining sharp focus.
  • Figure 1 is a perspective view of an endoscope having a reusable core within a throwaway or disposable sheath
  • Figure 2 is an enlarged, fragmentary, horizontal section, taken along line 2-2 of Figure 1, showing additional details of the core and sheath
  • Figure 3 is a vertical section, taken along line 3-3 of Figure 2, showing additional details of the core and sheath;
  • Figure 4 is a vertical section, taken along line 4-4 of Figure 2, showing still further details of the core and sheath;
  • Figure 5 is an enlarged, fragmentary, longitudinal section of an endoscope showing a removable lens assembly
  • Figure 6 is an enlarged, fragmentary, longitudinal section showing an end cap
  • Figure 7 is a vertical section, taken along line 7-7 of Figure 6, showing further details of the end cap;
  • Figure 8 is a fragmentary perspective view of an alternative endoscope embodiment having steering means;
  • Figure 9 is an enlarged, fragmentary, longitudinal section, taken along line 9-9 of Figure 8, showing further details of the endoscope;
  • Figure 10 is a vertical section, taken along line 10-10 of Figure 9, showing additional details of the endoscope;
  • Figure 11 is a fragmentary, perspective view of a further alternative embodiment having operative channels in the sheath;
  • Figure 12 is a fragmentary, longitudinal section, taken along line 12-12 of Figure 11, showing further details of the endoscope;
  • Figure 13 is a vertical section, taken along line 13-13 of Figure 11, showing additional details of the endoscope;
  • Figure 14 is a perspective view of a still further embodiment of a disposable sheath forming a part of an endoscope;
  • Figure 15 is an enlarged cross section, taken along line 15-15 of Figure 14, showing details of the construction of the sheath;
  • Figure 16 shows one form of core for use with the sheath of Figure 14;
  • Figure 17 shows second form of core for use with the sheath of Figure 14.
  • FIGS 1-7 One form of the endoscope 10 of the present invention is shown in Figures 1-7 wherein a throwaway channel section in the form of a cylindrical sheath 11 which has a window 12 at its distal end.
  • a plurality of peripherally spaced longitudinal channels are provided in the side wall of sheath 11 for receiving light fibers 14, as shown.
  • a cylindrical housing or core 15 is removable and slidably receivable within sheath 11.
  • a CCD 16 is slidably mounted within a housing 17 which contains the electronics for the CCD.
  • An objective lens 19 is hermetically sealed in the distal end of core 15 and an electronic cable for propagating the electronic signals through cable 18 extends from the proximal end of housing 17.
  • Cable 18 extends through a passageway 20 in a rod portion 22 formed at the proximal end of core 15, as best seen in Figure 2. Housing 17 is moveable longitudinally by means of cable 18 which allows housing 17, holding the CCD 16, to be separated from the objective lens 18. This in-and-out capability allows separation of the CCD 16 from the objective lens 18 and thereby provides for focusing of an image at the operative site on the CCD. Cable 18 is connected to a camera control unit 24 which in turn is connected to a video monitor 26 by means of a cable 28.
  • An end cap 30 has a pair of slots 32 which align with a pair of oppositely spaced tabs 34 on ths proximal end of rod section 22 for attachment to hold the core 15 and associated rod section 22 in position within sheath 11.
  • the end cap has a central opening 36 through which cable 18 and light fibers 14 extend.
  • the end cap can be rotated so that each tab 34 is displaced from its respective slot 32 into a peripheral groove 38 formed in the end cap.
  • Light fibers 14, after they exit end cap 30, are bundled into a cable 40 which connects to a light source 42, shown in Figure 1. It will be noted, that both light fibers 14 and electronic cable 18 both exit through an opening in the cap enclosure 30. Although the drawing is done to show both detail on light fibers and electronic cable, it will be appreciated by those familiar with the technology that these cables actually exit through a water tight plastic strain relief to seal the system against water entry and to provide longer life to the two cables, i.e., light and electronic.
  • a plastic cover 44 which is formed into an accordion shape and is connected to sheath 11, as by a ring 46.
  • the cover 44 can be extended along the cables by pulling on pull tab 48 to pull cover 44 back over end cap 30 and down along cables 18 and 40.
  • core 15 may have been sterilized or disinfected by soaking or other means which do not require extremely high temperatures, so as not to damage the electronics.
  • these methods are not always one-hundred percent effective and require long periods of time to accomplish.
  • the endoscope will be inserted into sterile sheath 11, as previously described, and cover 44 will be pulled down along cables 18 and 40.
  • cover 44 will be pulled down along cables 18 and 40.
  • sheath 11 will be removed and thrown away and a new sterile sheath will be used for the next operative procedure.
  • the distal end of sheath 11 can be modified, as shown in Figure 5, to have internal threads 50 for receiving a threaded lens assembly 52.
  • This lens assembly can be constructed to allow straight ahead viewing with various fields of view, but it can also be made to allow angled viewing at 30°, 45°, 70° or any desired angle.
  • This terminal lens may also be an optical filter, which may be removable.
  • FIG. 8- 10 An alternative embodiment is shown in Figures 8- 10 wherein the endoscope has a throwaway sheath 60 which is provided with a distal flexible tubular portion 62 and a proximal rigid cylindrical channel section 64 connected together as shown.
  • a cover 66 is provided which is in accordion configuration and has a pull tab 68 for pulling it down over the cables of the device.
  • Sheath 60 is provided with a pair of steering wires 70 extending longitudinally through the wall of tubular section 62, as shown in Figure 10, to a control 72 in cylindrical section 64, which works in a conventional manner for pushing or pulling the respective wires 70 to articulate the distal end of tubular section 62.
  • a second pair of wires can be provided along with a second control for articulation in the opposite direction, all of which is well understood in the art.
  • electronic housing 17 has a electronic cable 18 extending from the proximal end thereof through the opening in end cap 30.
  • the electronic housing 17 is received in the distal end of a core in the form of longitudinal tube 74 and the electronic wires extend longitudinally therethrough. It will be understood that this embodiment works just as the previous embodiment in respect to the placing the electronic housing with its associated tube 74 within the sheath 60 and holding it in position by means of end cap 30.
  • the sheath is sterile before use and after use is disposed of and a new sterile sheath is used with the core 74 next time the endoscope is to be used on a patient.
  • a further alternative endoscope which has a sheath 80 is disclosed in Figures 11-13, wherein the sheath has a distal section 82 with operating channel passageways 84 extending longitudinally through the side walls.
  • the distal cylindrical channel section 82 is formed integrally with a proximal section 86 having ports 88 in communication with passageways 84.
  • This sheath is used when the light fibers for illumination are integral with the electronic housing.
  • housing 16 is provided within a sleeve 90 having longitudinal light fibers 14 extending therethrough.
  • a still further embodiment includes sheath 150 which has a distal end section 152 and a proximal end 154 which is larger than the distal portion and is integrally formed therewith, as shown.
  • An accordion sleeve 156 is attached adjacent the proximal end of section 154 and has a pull tab 158 for pulling it down along a light cable 160.
  • the distal end of light cable 160 is connected to the proximal end of section 154 and communicates with light fiber channel 161, as best seen in Figure 15.
  • section 154 has one or more inlet ports, such as inlet ports 162 which communicate with irrigation channels 164, shown in Figure 15.
  • the sheath 150 is adapted to receive either of the core members shown in Figures 16 and 17.
  • Core 166 shown in Figure 16, has an objective lens 168, a CCD 170 and a cable 172 connected in series as shown.
  • the proximal end of cable 172 is connected to a locking mechanism 174 which is receivable and can be securely locked within the proximal end of section 154 of sheath 150.
  • core member 176 as shown in Figure 17 has a rod lens 178 connected at its proximal end to a camera 180 by means of a coupler 182.
  • a locking mechanism 184 is connected between rod lens 176 and coupler 182 and is identical to locking mechanism 174 for locking into the proximal end of section 154 of sheath 150.

Abstract

A video endoscope (10) includes a removable core (15) with an objective lens (19) at the distal end thereof and an image sensor (16, 17) slidably mounted therein. The image sensor circuit board is connected by means of a cable (18) to a video control unit (24), from which signals are transmitted to a video monitor (26). A separable channel section sheath (11), which is provided in a sterile condition, removably receives the core (15). The separable channel section of the sheath (11) is disposable after use on a patient and the core (15) is prepared for reuse with another separable sterile sheath on the next patient. Light transmitting fibers (14) can be integral with the housing or core (15) or inserted into at least one of the channels in the channel section sheath (14).

Description

ENDOSCOPE WITH REUSABLE CORE AND DISPOSABLE SHEATH WITH PASSAGEWAYS
Technical Field
This application is a continuation-in-part of my copending U.S. patent application Serial No.
07/938,629, filed September 1, 1992. This invention relates to an endoscope, and more particularly to a endoscope with a separable and disposable, initially sterile outer sheath containing one or more passageways and a reusable inner core which contains optics, image sensor and electronics.
Background Art
In recent years the popularity of endoscopic surgery has proliferated. This has occurred because of the advances in technology which allow smaller and smaller endoscopes to be used, thereby permitting operative procedures to be undertaken in a less invasive manner for the patient than was previously possible. Thus, the patient suffers less trauma and recuperates much more rapidly and experiences less pain and discomfort than with more conventional surgical procedures.
Because of the sophisticated optics and electro- optics contained in modern endoscopes, they generally are very expensive. In order for this expense to be justified, they must be reused with a large number of patients.
Of course, multiple use means that the endoscope must be sterilized or at least disinfected after use with each patient prior to use with the next patient. One protocol for pre-operative preparation involves immersing the endoscope in a disinfectant solution for a predetermined period of time. It is also important to flush the channels which carry gases or fluids and those channels which are used for receiving operative instruments. Another protocol is to heat sterilize the endoscope by placing it in an autoclave. However, the optics and electronics of many endoscopes will not permit them to be subjected to heat sterilization. When using the disinfectant, sometimes the endoscope is not placed in the disinfecting solution for a sufficient length of time nor are the channels flushed out completely, because of the urgency to get the endoscope back into service as soon as possible. Over time, the disinfectant solution may loose some of its strength, thereby limiting its effectiveness. Because of these shortcomings, many studies have shown that transmission of infectious diseases from one patient to another has occurred in many instances. By way of example, transmission of salmonella typhi has been reported. In addition, pseudomonas aeruginosa has been linked to endoscopy. Also, an outbreak of serratia marcescens has been associated with the use of a bronchoscope. Furthermore, hepatitis B has been transmitted by endoscopes when the endoscopes were processed in an inappropriate manner between patients. Finally, with respect to endoscope used on AID'S patients it has been found that the sterilizing procedures have not always removed contamination of the human immunodeficiency virus (HIV) . This list is not exhaustive by any means.
A high-level of disinfection failures among gastrointestinal endoscopes have been noted, as well as failures in bronchoscopes, laryngoscopes and other devices. This may be due to the fact that they are long and narrow and have long and narrow channels which are difficult to clean.
From the foregoing, it is apparent that endoscopes which can be more easily and effectively sterilized are needed.
Disclosure of the Invention
In accordance with the present invention, an improved endoscope in one configuration has been provided which includes an elongated cylindrical hermetically sealed core which includes a cylindrical housing with an objective lens at housing or the distal end thereof. An image sensor and associated electronics, e.g., a circuit board, is slidably mounted adjacent the objective lens within the housing. A transmitting electronic cable with multiple conductors each have a distal end connected to the image sensor electronics and a proximal end connected to a video control unit. From the video control unit signals are transmitted to the video monitor which displays the image in black and white or color. A separable outer cylindrical sheath, which is provided in a sterile condition, removably receives the core in a defined relationship and the sheath has at least one longitudinal channel for transmitting fluids or for receiving an operative instrument or carrying a light transmitting fiber. A flexible or rigid tube is connected to the proximal end of the channel for supplying fluid or for manipulating the operative instrument from a remote location. The separable sheath is disposable after use on a patient and the core is prepared for reuse with another sterile sheath on the next patient. Light transmitting fibers can be integral with the core or inserted in one of the channels in the sheath. Optionally, a connection may be provided at the distal end of the housing for selective mounting of lens attachments which may provide straight ahead or angled fields of view. This selection of lenses are mounted outside of the sealed terminal window of the device.
In addition, either a rod inside of a tube or two thin walled concentric tubes extend proximally from the housing, or core, with electronic cables extending through the hollow interior of the core. Conveniently, the rod or tubes can have a connecting means releasable interconnecting the proximal end of the rod or tubes to the proximal end of the sheath. This connection may be the method of threads or by a bayonet attachment or by other means.
The threaded tube within a tube, or the rod within a tube, allows attachment of the outer layer of the core to the objective leans. The inner tube or rod is then attached to the CCD device allowing the threads to be used to either separate the lens from the CCD device or to bring them together. This arrangement allows the device to have a sharp focusing capability. Longitudinal movement of the CCD in relationship to the optic lens is essential to obtaining sharp focus.
Brief Description of the Drawings
Figure 1 is a perspective view of an endoscope having a reusable core within a throwaway or disposable sheath; Figure 2 is an enlarged, fragmentary, horizontal section, taken along line 2-2 of Figure 1, showing additional details of the core and sheath; Figure 3 is a vertical section, taken along line 3-3 of Figure 2, showing additional details of the core and sheath;
Figure 4 is a vertical section, taken along line 4-4 of Figure 2, showing still further details of the core and sheath;
Figure 5 is an enlarged, fragmentary, longitudinal section of an endoscope showing a removable lens assembly; Figure 6 is an enlarged, fragmentary, longitudinal section showing an end cap;
Figure 7 is a vertical section, taken along line 7-7 of Figure 6, showing further details of the end cap; Figure 8 is a fragmentary perspective view of an alternative endoscope embodiment having steering means;
Figure 9 is an enlarged, fragmentary, longitudinal section, taken along line 9-9 of Figure 8, showing further details of the endoscope;
Figure 10 is a vertical section, taken along line 10-10 of Figure 9, showing additional details of the endoscope;
Figure 11 is a fragmentary, perspective view of a further alternative embodiment having operative channels in the sheath;
Figure 12 is a fragmentary, longitudinal section, taken along line 12-12 of Figure 11, showing further details of the endoscope; Figure 13 is a vertical section, taken along line 13-13 of Figure 11, showing additional details of the endoscope;
Figure 14 is a perspective view of a still further embodiment of a disposable sheath forming a part of an endoscope; Figure 15 is an enlarged cross section, taken along line 15-15 of Figure 14, showing details of the construction of the sheath; and
Figure 16 shows one form of core for use with the sheath of Figure 14; and
Figure 17 shows second form of core for use with the sheath of Figure 14.
Best Mode For Carrying Out the Invention
One form of the endoscope 10 of the present invention is shown in Figures 1-7 wherein a throwaway channel section in the form of a cylindrical sheath 11 which has a window 12 at its distal end. A plurality of peripherally spaced longitudinal channels are provided in the side wall of sheath 11 for receiving light fibers 14, as shown. A cylindrical housing or core 15 is removable and slidably receivable within sheath 11. A CCD 16 is slidably mounted within a housing 17 which contains the electronics for the CCD. An objective lens 19 is hermetically sealed in the distal end of core 15 and an electronic cable for propagating the electronic signals through cable 18 extends from the proximal end of housing 17. Cable 18 extends through a passageway 20 in a rod portion 22 formed at the proximal end of core 15, as best seen in Figure 2. Housing 17 is moveable longitudinally by means of cable 18 which allows housing 17, holding the CCD 16, to be separated from the objective lens 18. This in-and-out capability allows separation of the CCD 16 from the objective lens 18 and thereby provides for focusing of an image at the operative site on the CCD. Cable 18 is connected to a camera control unit 24 which in turn is connected to a video monitor 26 by means of a cable 28. An end cap 30 has a pair of slots 32 which align with a pair of oppositely spaced tabs 34 on ths proximal end of rod section 22 for attachment to hold the core 15 and associated rod section 22 in position within sheath 11. The end cap has a central opening 36 through which cable 18 and light fibers 14 extend. The end cap can be rotated so that each tab 34 is displaced from its respective slot 32 into a peripheral groove 38 formed in the end cap. Light fibers 14, after they exit end cap 30, are bundled into a cable 40 which connects to a light source 42, shown in Figure 1. It will be noted, that both light fibers 14 and electronic cable 18 both exit through an opening in the cap enclosure 30. Although the drawing is done to show both detail on light fibers and electronic cable, it will be appreciated by those familiar with the technology that these cables actually exit through a water tight plastic strain relief to seal the system against water entry and to provide longer life to the two cables, i.e., light and electronic. Conveniently, adjacent the proximate end of sheath 11 is a plastic cover 44 which is formed into an accordion shape and is connected to sheath 11, as by a ring 46. The cover 44 can be extended along the cables by pulling on pull tab 48 to pull cover 44 back over end cap 30 and down along cables 18 and 40.
It will be understood that core 15 may have been sterilized or disinfected by soaking or other means which do not require extremely high temperatures, so as not to damage the electronics. However, these methods are not always one-hundred percent effective and require long periods of time to accomplish. Just prior to use, the endoscope will be inserted into sterile sheath 11, as previously described, and cover 44 will be pulled down along cables 18 and 40. Thus, the entire portion of the endoscope inserted in the patient or associated with the patient will be completely sterile. After use, sheath 11 will be removed and thrown away and a new sterile sheath will be used for the next operative procedure. The distal end of sheath 11 can be modified, as shown in Figure 5, to have internal threads 50 for receiving a threaded lens assembly 52. This lens assembly can be constructed to allow straight ahead viewing with various fields of view, but it can also be made to allow angled viewing at 30°, 45°, 70° or any desired angle. This terminal lens may also be an optical filter, which may be removable.
An alternative embodiment is shown in Figures 8- 10 wherein the endoscope has a throwaway sheath 60 which is provided with a distal flexible tubular portion 62 and a proximal rigid cylindrical channel section 64 connected together as shown. As in the previous embodiment, a cover 66 is provided which is in accordion configuration and has a pull tab 68 for pulling it down over the cables of the device. Sheath 60 is provided with a pair of steering wires 70 extending longitudinally through the wall of tubular section 62, as shown in Figure 10, to a control 72 in cylindrical section 64, which works in a conventional manner for pushing or pulling the respective wires 70 to articulate the distal end of tubular section 62. If desired, a second pair of wires can be provided along with a second control for articulation in the opposite direction, all of which is well understood in the art. As in the previous embodiment, electronic housing 17 has a electronic cable 18 extending from the proximal end thereof through the opening in end cap 30. In this embodiment, the electronic housing 17 is received in the distal end of a core in the form of longitudinal tube 74 and the electronic wires extend longitudinally therethrough. It will be understood that this embodiment works just as the previous embodiment in respect to the placing the electronic housing with its associated tube 74 within the sheath 60 and holding it in position by means of end cap 30. The sheath is sterile before use and after use is disposed of and a new sterile sheath is used with the core 74 next time the endoscope is to be used on a patient. A further alternative endoscope which has a sheath 80 is disclosed in Figures 11-13, wherein the sheath has a distal section 82 with operating channel passageways 84 extending longitudinally through the side walls. The distal cylindrical channel section 82 is formed integrally with a proximal section 86 having ports 88 in communication with passageways 84. This sheath is used when the light fibers for illumination are integral with the electronic housing. As best seen in Figure 12, housing 16 is provided within a sleeve 90 having longitudinal light fibers 14 extending therethrough.
In Figures 14 and 15 a still further embodiment includes sheath 150 which has a distal end section 152 and a proximal end 154 which is larger than the distal portion and is integrally formed therewith, as shown. An accordion sleeve 156 is attached adjacent the proximal end of section 154 and has a pull tab 158 for pulling it down along a light cable 160. Conveniently, the distal end of light cable 160 is connected to the proximal end of section 154 and communicates with light fiber channel 161, as best seen in Figure 15. Additionally, section 154 has one or more inlet ports, such as inlet ports 162 which communicate with irrigation channels 164, shown in Figure 15. The sheath 150 is adapted to receive either of the core members shown in Figures 16 and 17. Core 166, shown in Figure 16, has an objective lens 168, a CCD 170 and a cable 172 connected in series as shown. The proximal end of cable 172 is connected to a locking mechanism 174 which is receivable and can be securely locked within the proximal end of section 154 of sheath 150.
Similarly, core member 176, as shown in Figure 17 has a rod lens 178 connected at its proximal end to a camera 180 by means of a coupler 182. A locking mechanism 184 is connected between rod lens 176 and coupler 182 and is identical to locking mechanism 174 for locking into the proximal end of section 154 of sheath 150. Thus, it can be seen that cores 166 and 176 are interchangeable for use with the same sheath. This invention has been described in detail with reference to particular embodiments thereof, but it will be understood that various other modifications can be effected within the spirit and scope of this invention.

Claims

CLAIMS I Claim:
1. An improved endoscope having a sterilizable or fluid immersible optical section and a throwaway sterilizable outer sheath channel section, said endoscope comprising: an elongated cylindrical core housing, having a distal end and a proximal end, with optical lens means mounted in said distal end thereof; an image sensor slidably mounted at said distal end of said cylindrical core housing adjacent to said optical lens means; an electronic cable having a distal end connected to said image sensor and extending proximally from said cylindrical core housing for transmitting electronic signals from said image sensor to a video control unit and then to a remote image display device; a cylindrical channel section having a cylindrical wall having a distal end and a proximal end and with a hermetically sealed transparent window at said distal end thereof and having a central passageway for receiving and positioning said cylindrical core housing with said image sensor and objective optics adjacent said window and having at least one longitudinal channel extending along said cylindrical wall, communicating with said distal end thereof; and means for releasably connecting said housing to said channel section, said channel section being disposable after use on a patient and said housing being sterilizable or soakable for reuse with another new sterile channel section on the next patient.
2. Apparatus, as claimed in claim 1, wherein: said channel is usable for transmitting fluids or for receiving an operative instrument.
3. Apparatus, as claimed in claim 3, further including: at least one light transmitting fiber in said housing with a distal end adjacent to said image sensor for transmitting light to a site under investigation from a remote light source.
4. Apparatus, as claimed in claim 1, further including: a light fiber extending through said channel for transmitting light to a site under investigation from a remote light source.
5. Apparatus, as claimed in claim 4, further including: a plurality of longitudinal channels spaced around said cylindrical wall.
6. Apparatus, as claimed in claim 5, further including: a light fiber extending through each of said channels for transmitting light to the site under investigation from a remote light source.
7. Apparatus, as claimed in claim 1, further including: a connection at said distal end of said housing for the selective mounting of an optical attachment.
8. Apparatus, as claimed in claim 7, wherein: said optical attachment is a lens.
9. Apparatus, as claimed in claim 7, wherein: said optical attachment is an elongated steerable device having a flexible distal end and a proximal end attached to said connection.
10. Apparatus, as claimed in claim 9, further including: light fibers means extending longitudinally through said steering device for providing light to said distal end of said steering device to provide illumination to a site under investigation.
11. Apparatus, as claimed in claim 1, further including: a rod having a distal end connected to said proximal end of said housing and extending proximally from said housing and having a proximal end, said electronic cables extending longitudinally through said rod, said connecting means releasably interconnects said proximal end of said rod to said proximal end of said channel section.
12. Apparatus, as claimed in claim 1, further including: a tube having a distal end connected to said proximal end of said housing and extending proximally from said housing and having a proximal end, said electronic cables extending longitudinally through said tube, said connecting means releasably interconnects said proximal end of said tube to said proximal end of said channel.
13. Apparatus, as claimed in claim 1, further including: focusing means connected to said image sensor for sliding said image sensor longitudinally with respect to said optical lens means to focus an image on said image sensor.
14. Apparatus, as claimed in claim 13, wherein said focusing means comprises: a member fixedly connected to said proximal end of said core housing and threadably connected to said proximal end of said channel section so that by rotating said member relative to said channel section, said optical sensor is moved relative said optical lens for focusing an image on said image sensor.
15. Apparatus, as claimed in claim 5, further including: steering wires extending through at least some of said channels for steering said channel section and said housing.
PCT/US1994/006720 1993-06-22 1994-06-13 Endoscope with reusable core and disposable sheath with passageways WO1995000066A1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5672777A (en) * 1994-04-12 1997-09-30 Monsanto Company Catalysts for production of phenol and its derivatives
EP0904725A1 (en) * 1997-02-13 1999-03-31 Matsushita Electric Industrial Co., Ltd. Endoscope, method of manufacturing the same, and inserting member
GB2339922A (en) * 1998-05-08 2000-02-09 Smiths Industries Plc Endoscope with removable sheath
CN109068944A (en) * 2016-08-11 2018-12-21 数字内窥镜检查有限公司 Endoscope head, endoscope and Pierre Albarran bar holding member

Families Citing this family (135)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5704892A (en) * 1992-09-01 1998-01-06 Adair; Edwin L. Endoscope with reusable core and disposable sheath with passageways
US5817015A (en) 1993-06-22 1998-10-06 Adair; Edwin L. Endoscope with reusable core and disposable sheath with passageways
US5573493A (en) * 1993-10-08 1996-11-12 United States Surgical Corporation Endoscope attachment for changing angle of view
US6411835B1 (en) 1997-01-13 2002-06-25 Medispectra, Inc. Spectral volume microprobe arrays
US6413209B1 (en) 1995-09-15 2002-07-02 Med Images, Inc. Imaging system with condensation control
US6428470B1 (en) 1995-09-15 2002-08-06 Pinotage, Llc Imaging system and components thereof
US6007484A (en) * 1995-09-15 1999-12-28 Image Technologies Corporation Endoscope having elevation and azimuth control of camera
AU7112396A (en) * 1995-09-15 1997-04-17 Robert Lee Thompson Surgical/diagnostic imaging device
US5891013A (en) * 1996-02-07 1999-04-06 Pinotage, Llc System for single-puncture endoscopic surgery
CA2246341C (en) 1996-02-15 2007-05-01 Biosense, Inc. Precise position determination of endoscopes
DE19647855B4 (en) * 1996-11-19 2007-09-27 Henke-Sass Wolf Gmbh Fully autoclavable electronic endoscope
US6270494B1 (en) 1996-12-26 2001-08-07 Cryogen, Inc. Stretchable cryoprobe sheath
US5910104A (en) 1996-12-26 1999-06-08 Cryogen, Inc. Cryosurgical probe with disposable sheath
DE19743431B4 (en) * 1997-10-01 2011-02-17 Karl Storz Gmbh & Co. Kg Endoscope with composite window
US6847490B1 (en) * 1997-01-13 2005-01-25 Medispectra, Inc. Optical probe accessory device for use in vivo diagnostic procedures
US6826422B1 (en) * 1997-01-13 2004-11-30 Medispectra, Inc. Spectral volume microprobe arrays
US6346073B1 (en) 1997-05-07 2002-02-12 Pinotage, Llc Imaging system and components thereof
US5980450A (en) * 1997-05-07 1999-11-09 Pinotage, Llc Coupling device for use in an imaging system
IL121450A0 (en) * 1997-08-01 1998-02-08 Smollett Neil Ophthalmic surgical equipment
US6086528A (en) * 1997-09-11 2000-07-11 Adair; Edwin L. Surgical devices with removable imaging capability and methods of employing same
US5929901A (en) * 1997-10-06 1999-07-27 Adair; Edwin L. Reduced area imaging devices incorporated within surgical instruments
US6043839A (en) * 1997-10-06 2000-03-28 Adair; Edwin L. Reduced area imaging devices
US6424369B1 (en) 1997-10-06 2002-07-23 Edwin L. Adair Hand-held computers incorporating reduced area imaging devices
US20110034769A1 (en) 1997-10-06 2011-02-10 Micro-Imaging Solutions Llc Reduced area imaging device incorporated within wireless endoscopic devices
US6452626B1 (en) 1997-10-06 2002-09-17 Edwin L. Adair Communication devices incorporating reduced area imaging devices
US6982742B2 (en) * 1997-10-06 2006-01-03 Adair Edwin L Hand-held computers incorporating reduced area imaging devices
US7030904B2 (en) * 1997-10-06 2006-04-18 Micro-Medical Devices, Inc. Reduced area imaging device incorporated within wireless endoscopic devices
US5986693A (en) * 1997-10-06 1999-11-16 Adair; Edwin L. Reduced area imaging devices incorporated within surgical instruments
US7002621B2 (en) * 1997-10-06 2006-02-21 Adair Edwin L Communication devices incorporating reduced area imaging devices
US6310642B1 (en) 1997-11-24 2001-10-30 Micro-Medical Devices, Inc. Reduced area imaging devices incorporated within surgical instruments
US6982740B2 (en) * 1997-11-24 2006-01-03 Micro-Medical Devices, Inc. Reduced area imaging devices utilizing selected charge integration periods
US6487440B2 (en) 1998-07-08 2002-11-26 Lifespex, Inc. Optical probe having and methods for difuse and uniform light irradiation
US6332092B1 (en) 1998-07-08 2001-12-18 Lifespex, Incorporated Optical probe having and methods for uniform light irradiation and/or light collection over a volume
US6478730B1 (en) 1998-09-09 2002-11-12 Visionscope, Inc. Zoom laparoscope
US6234958B1 (en) 1998-11-30 2001-05-22 Medical Access Systems, Llc Medical device introduction system including medical introducer having a plurality of access ports and methods of performing medical procedures with same
US6411838B1 (en) 1998-12-23 2002-06-25 Medispectra, Inc. Systems and methods for optical examination of samples
WO2000036973A1 (en) * 1998-12-23 2000-06-29 Medispectra, Inc. Optical methods and systems for cervical screening
AU762415B2 (en) 1999-01-19 2003-06-26 Covidien Lp Sheath and applicator for surgical instrument
US8262560B2 (en) * 2001-04-20 2012-09-11 Tyco Healthcare Group Lp Imaging device for use with a surgical device
US7416554B2 (en) 2002-12-11 2008-08-26 Usgi Medical Inc Apparatus and methods for forming and securing gastrointestinal tissue folds
US8574243B2 (en) 1999-06-25 2013-11-05 Usgi Medical, Inc. Apparatus and methods for forming and securing gastrointestinal tissue folds
US8317689B1 (en) 1999-09-13 2012-11-27 Visionscope Technologies Llc Miniature endoscope system
US7260248B2 (en) * 1999-12-15 2007-08-21 Medispectra, Inc. Image processing using measures of similarity
US7187810B2 (en) * 1999-12-15 2007-03-06 Medispectra, Inc. Methods and systems for correcting image misalignment
US6902935B2 (en) * 1999-12-15 2005-06-07 Medispectra, Inc. Methods of monitoring effects of chemical agents on a sample
US6468203B2 (en) 2000-04-03 2002-10-22 Neoguide Systems, Inc. Steerable endoscope and improved method of insertion
US6858005B2 (en) 2000-04-03 2005-02-22 Neo Guide Systems, Inc. Tendon-driven endoscope and methods of insertion
US6974411B2 (en) * 2000-04-03 2005-12-13 Neoguide Systems, Inc. Endoscope with single step guiding apparatus
US8888688B2 (en) 2000-04-03 2014-11-18 Intuitive Surgical Operations, Inc. Connector device for a controllable instrument
US8517923B2 (en) 2000-04-03 2013-08-27 Intuitive Surgical Operations, Inc. Apparatus and methods for facilitating treatment of tissue via improved delivery of energy based and non-energy based modalities
US6610007B2 (en) 2000-04-03 2003-08-26 Neoguide Systems, Inc. Steerable segmented endoscope and method of insertion
US6837846B2 (en) * 2000-04-03 2005-01-04 Neo Guide Systems, Inc. Endoscope having a guide tube
US6984203B2 (en) * 2000-04-03 2006-01-10 Neoguide Systems, Inc. Endoscope with adjacently positioned guiding apparatus
US20030215128A1 (en) * 2001-09-12 2003-11-20 Pinotage Llc System and method for obtaining and utilizing maintenance information
AU2001289056A1 (en) * 2000-09-11 2002-03-26 Pinotage, Llc System and method for obtaining and utilizing maintenance information
US6839661B2 (en) * 2000-12-15 2005-01-04 Medispectra, Inc. System for normalizing spectra
US8038602B2 (en) * 2001-10-19 2011-10-18 Visionscope Llc Portable imaging system employing a miniature endoscope
US10595710B2 (en) * 2001-10-19 2020-03-24 Visionscope Technologies Llc Portable imaging system employing a miniature endoscope
US20070167681A1 (en) 2001-10-19 2007-07-19 Gill Thomas J Portable imaging system employing a miniature endoscope
US6863651B2 (en) 2001-10-19 2005-03-08 Visionscope, Llc Miniature endoscope with imaging fiber system
AU2002360767A1 (en) * 2002-01-09 2003-07-30 Neoguide Systems, Inc Apparatus and method for spectroscopic examination of the colon
WO2003059151A2 (en) 2002-01-09 2003-07-24 Neoguide Systems, Inc. Apparatus and method for endoscopic colectomy
US6790173B2 (en) * 2002-06-13 2004-09-14 Usgi Medical, Inc. Shape lockable apparatus and method for advancing an instrument through unsupported anatomy
US7041052B2 (en) * 2002-06-13 2006-05-09 Usgi Medical Inc. Shape lockable apparatus and method for advancing an instrument through unsupported anatomy
US20040208385A1 (en) * 2003-04-18 2004-10-21 Medispectra, Inc. Methods and apparatus for visually enhancing images
US6933154B2 (en) * 2002-07-09 2005-08-23 Medispectra, Inc. Optimal windows for obtaining optical data for characterization of tissue samples
US7469160B2 (en) * 2003-04-18 2008-12-23 Banks Perry S Methods and apparatus for evaluating image focus
US20040208390A1 (en) * 2003-04-18 2004-10-21 Medispectra, Inc. Methods and apparatus for processing image data for use in tissue characterization
US7136518B2 (en) * 2003-04-18 2006-11-14 Medispectra, Inc. Methods and apparatus for displaying diagnostic data
US7282723B2 (en) * 2002-07-09 2007-10-16 Medispectra, Inc. Methods and apparatus for processing spectral data for use in tissue characterization
US20040209237A1 (en) * 2003-04-18 2004-10-21 Medispectra, Inc. Methods and apparatus for characterization of tissue samples
US6818903B2 (en) * 2002-07-09 2004-11-16 Medispectra, Inc. Method and apparatus for identifying spectral artifacts
US6768918B2 (en) 2002-07-10 2004-07-27 Medispectra, Inc. Fluorescent fiberoptic probe for tissue health discrimination and method of use thereof
US7103401B2 (en) 2002-07-10 2006-09-05 Medispectra, Inc. Colonic polyp discrimination by tissue fluorescence and fiberoptic probe
US8882657B2 (en) 2003-03-07 2014-11-11 Intuitive Surgical Operations, Inc. Instrument having radio frequency identification systems and methods for use
US20050245789A1 (en) 2003-04-01 2005-11-03 Boston Scientific Scimed, Inc. Fluid manifold for endoscope system
US7591783B2 (en) 2003-04-01 2009-09-22 Boston Scientific Scimed, Inc. Articulation joint for video endoscope
US8118732B2 (en) 2003-04-01 2012-02-21 Boston Scientific Scimed, Inc. Force feedback control system for video endoscope
US7578786B2 (en) 2003-04-01 2009-08-25 Boston Scientific Scimed, Inc. Video endoscope
US20040199052A1 (en) 2003-04-01 2004-10-07 Scimed Life Systems, Inc. Endoscopic imaging system
US20050171467A1 (en) * 2004-01-30 2005-08-04 Jaime Landman Multiple function surgical device
US8517921B2 (en) * 2004-04-16 2013-08-27 Gyrus Acmi, Inc. Endoscopic instrument having reduced diameter flexible shaft
US8353860B2 (en) 2004-09-30 2013-01-15 Boston Scientific Scimed, Inc. Device for obstruction removal with specific tip structure
US7479106B2 (en) 2004-09-30 2009-01-20 Boston Scientific Scimed, Inc. Automated control of irrigation and aspiration in a single-use endoscope
US7241263B2 (en) 2004-09-30 2007-07-10 Scimed Life Systems, Inc. Selectively rotatable shaft coupler
US8199187B2 (en) 2004-09-30 2012-06-12 Boston Scientific Scimed, Inc. Adapter for use with digital imaging medical device
US8083671B2 (en) 2004-09-30 2011-12-27 Boston Scientific Scimed, Inc. Fluid delivery system for use with an endoscope
AU2005292274A1 (en) 2004-09-30 2006-04-13 Boston Scientific Limited Multi-functional endoscopic system for use in electrosurgical applications
DE102004056946A1 (en) * 2004-11-23 2006-05-24 Karl Storz Gmbh & Co. Kg Image pick-up module and method of assembling an image pick-up module
US8346346B1 (en) 2005-01-24 2013-01-01 The Board Of Trustees Of The Leland Stanford Junior University Optical analysis system and approach therefor
US20060235457A1 (en) * 2005-04-15 2006-10-19 Amir Belson Instruments having a rigidizable external working channel
US8097003B2 (en) 2005-05-13 2012-01-17 Boston Scientific Scimed, Inc. Endoscopic apparatus with integrated variceal ligation device
US7846107B2 (en) 2005-05-13 2010-12-07 Boston Scientific Scimed, Inc. Endoscopic apparatus with integrated multiple biopsy device
US8052597B2 (en) 2005-08-30 2011-11-08 Boston Scientific Scimed, Inc. Method for forming an endoscope articulation joint
US20070135803A1 (en) * 2005-09-14 2007-06-14 Amir Belson Methods and apparatus for performing transluminal and other procedures
DE102005049021B4 (en) * 2005-10-11 2008-08-21 Richard Wolf Gmbh endoscope
DE102005050554A1 (en) * 2005-10-17 2007-04-19 Karl Storz Gmbh & Co. Kg Rectoscope with light-emitting elements
JP2007135789A (en) * 2005-11-16 2007-06-07 Hamamatsu Univ School Of Medicine Drill with camera
WO2007062179A2 (en) 2005-11-22 2007-05-31 Neoguide Systems, Inc. Method of determining the shape of a bendable instrument
WO2007062066A2 (en) * 2005-11-23 2007-05-31 Neoguide Systems, Inc. Non-metallic, multi-strand control cable for steerable instruments
US7967759B2 (en) 2006-01-19 2011-06-28 Boston Scientific Scimed, Inc. Endoscopic system with integrated patient respiratory status indicator
US8888684B2 (en) 2006-03-27 2014-11-18 Boston Scientific Scimed, Inc. Medical devices with local drug delivery capabilities
US7955255B2 (en) 2006-04-20 2011-06-07 Boston Scientific Scimed, Inc. Imaging assembly with transparent distal cap
US8202265B2 (en) 2006-04-20 2012-06-19 Boston Scientific Scimed, Inc. Multiple lumen assembly for use in endoscopes or other medical devices
US8568299B2 (en) 2006-05-19 2013-10-29 Intuitive Surgical Operations, Inc. Methods and apparatus for displaying three-dimensional orientation of a steerable distal tip of an endoscope
US20080045859A1 (en) * 2006-08-19 2008-02-21 Fritsch Michael H Devices and Methods for In-Vivo Pathology Diagnosis
US8574276B2 (en) * 2007-01-17 2013-11-05 Lerner Medical Devices, Inc. Fiber optic brush for light delivery
US8523925B2 (en) * 2007-01-17 2013-09-03 Lerner Medical Devices, Inc. Fiber optic phototherapy device
DE102007014739A1 (en) 2007-03-20 2008-09-25 Karl Storz Gmbh & Co. Kg Deflectable autoclavable endoscope
DE102008018931A1 (en) 2007-04-17 2008-11-13 Gyrus ACMI, Inc., Southborough Light source power based on a predetermined detected condition
US9220398B2 (en) 2007-10-11 2015-12-29 Intuitive Surgical Operations, Inc. System for managing Bowden cables in articulating instruments
KR101707924B1 (en) 2008-02-06 2017-02-17 인튜어티브 서지컬 오퍼레이션즈 인코포레이티드 A segmented instrument having braking capabilities
US8182418B2 (en) 2008-02-25 2012-05-22 Intuitive Surgical Operations, Inc. Systems and methods for articulating an elongate body
US8512232B2 (en) * 2009-09-08 2013-08-20 Gyrus Acmi, Inc. Endoscopic illumination system, assembly and methods for staged illumination of different target areas
GB2474309B (en) 2009-10-12 2011-09-07 Endoguard Ltd Flow guide for an endoscope
DE102010053814B4 (en) * 2010-12-08 2018-03-22 Markus Friedrich Endoscope for medical purposes
US9622650B2 (en) 2011-05-12 2017-04-18 DePuy Synthes Products, Inc. System and method for sub-column parallel digitizers for hybrid stacked image sensor using vertical interconnects
IL215106A0 (en) * 2011-09-12 2012-02-29 Daniel Sherwin Laparoscopic device
US20130253266A1 (en) 2012-03-22 2013-09-26 Codman & Shurtleff, Inc. Fluid management catheter and methods of using same
KR102127100B1 (en) 2012-07-26 2020-06-29 디퍼이 신테스 프로덕츠, 인코포레이티드 Ycbcr pulsed illumination scheme in a light deficient environment
MX344146B (en) 2012-07-26 2016-12-07 Depuy Synthes Products Inc Camera system with minimal area monolithic cmos image sensor.
BR112015001555A2 (en) 2012-07-26 2017-07-04 Olive Medical Corp continuous video in low light environment
US10750933B2 (en) 2013-03-15 2020-08-25 DePuy Synthes Products, Inc. Minimize image sensor I/O and conductor counts in endoscope applications
EP2967294B1 (en) 2013-03-15 2020-07-29 DePuy Synthes Products, Inc. Super resolution and color motion artifact correction in a pulsed color imaging system
EP2967301B1 (en) 2013-03-15 2021-11-03 DePuy Synthes Products, Inc. Scope sensing in a light controlled environment
WO2014145249A1 (en) 2013-03-15 2014-09-18 Olive Medical Corporation Controlling the integral light energy of a laser pulse
AU2014233190B2 (en) 2013-03-15 2018-11-01 DePuy Synthes Products, Inc. Image sensor synchronization without input clock and data transmission clock
CN103584828B (en) * 2013-12-02 2015-05-13 杨幼林 Multi-pore outer sleeve used for endoscope
JP6573960B2 (en) 2014-03-21 2019-09-11 デピュイ・シンセス・プロダクツ・インコーポレイテッド Card edge connector for imaging sensors
US11278286B2 (en) 2015-04-22 2022-03-22 Covidien Lp Handheld electromechanical surgical system
AU2016251639B2 (en) 2015-04-22 2021-01-14 Covidien Lp Handheld electromechanical surgical system
EP3668366A4 (en) * 2017-08-17 2021-04-21 270 Surgical Ltd. Multi camera medical surgery illuminating device with a changing diameter
US20200237202A9 (en) * 2017-08-23 2020-07-30 Angele Innovations, Llc Device for verifying placement of endotracheal, nasogastric, orogastric tubes
US10905322B2 (en) * 2019-03-26 2021-02-02 John L. Bala Bala Laparoscope System
US11771312B2 (en) * 2021-10-15 2023-10-03 Resnent, Llc Detachable endoscope shaft

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4878485A (en) * 1989-02-03 1989-11-07 Adair Edwin Lloyd Rigid video endoscope with heat sterilizable sheath
EP0343558A1 (en) * 1988-05-23 1989-11-29 Sumitomo Electric Industries, Ltd. Image picking-up and processing apparatus
US4979498A (en) * 1989-10-30 1990-12-25 Machida Incorporated Video cervicoscope system
US5188094A (en) * 1991-09-30 1993-02-23 Adair Edwin Lloyd Heat sterilizable electronic video endoscope
DE9300814U1 (en) * 1993-01-22 1993-03-11 Aesculap Ag, 7200 Tuttlingen, De

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3581738A (en) * 1968-11-12 1971-06-01 Welch Allyn Inc Disposable illuminating endoscope and method of manufacture
US3866599A (en) * 1972-01-21 1975-02-18 Univ Washington Fiberoptic catheter
US4646722A (en) * 1984-12-10 1987-03-03 Opielab, Inc. Protective endoscope sheath and method of installing same
DE3508833C2 (en) * 1985-03-13 1994-01-20 Edith Glocker Handels Und Verw Protection and sterile holding device for the insertion tube of an endoscope
JPS6337310A (en) * 1986-08-01 1988-02-18 Olympus Optical Co Ltd Tip part of endoscope
US4856495A (en) * 1986-09-25 1989-08-15 Olympus Optical Co., Ltd. Endoscope apparatus
US4854302A (en) * 1987-11-12 1989-08-08 Welch Allyn, Inc. Video equipped endoscope with needle probe
US4919112B1 (en) * 1989-04-07 1993-12-28 Low-cost semi-disposable endoscope
US5201908A (en) * 1991-06-10 1993-04-13 Endomedical Technologies, Inc. Sheath for protecting endoscope from contamination
US5237984A (en) * 1991-06-24 1993-08-24 Xomed-Treace Inc. Sheath for endoscope
US5222477A (en) * 1991-09-30 1993-06-29 Welch Allyn, Inc. Endoscope or borescope stereo viewing system
US5207684A (en) * 1992-04-13 1993-05-04 Neuro Navigational Corporation Sheath for shunt placement for hydrocephalus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0343558A1 (en) * 1988-05-23 1989-11-29 Sumitomo Electric Industries, Ltd. Image picking-up and processing apparatus
US4878485A (en) * 1989-02-03 1989-11-07 Adair Edwin Lloyd Rigid video endoscope with heat sterilizable sheath
US4979498A (en) * 1989-10-30 1990-12-25 Machida Incorporated Video cervicoscope system
US5188094A (en) * 1991-09-30 1993-02-23 Adair Edwin Lloyd Heat sterilizable electronic video endoscope
DE9300814U1 (en) * 1993-01-22 1993-03-11 Aesculap Ag, 7200 Tuttlingen, De

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5672777A (en) * 1994-04-12 1997-09-30 Monsanto Company Catalysts for production of phenol and its derivatives
EP0904725A1 (en) * 1997-02-13 1999-03-31 Matsushita Electric Industrial Co., Ltd. Endoscope, method of manufacturing the same, and inserting member
EP0904725A4 (en) * 1997-02-13 2000-05-24 Matsushita Electric Ind Co Ltd Endoscope, method of manufacturing the same, and inserting member
US6293910B1 (en) 1997-02-13 2001-09-25 Matsushita Electric Industrial Co., Ltd. Endoscope, method of manufacturing the same, and insertion member
GB2339922A (en) * 1998-05-08 2000-02-09 Smiths Industries Plc Endoscope with removable sheath
CN109068944A (en) * 2016-08-11 2018-12-21 数字内窥镜检查有限公司 Endoscope head, endoscope and Pierre Albarran bar holding member
CN109068944B (en) * 2016-08-11 2021-08-06 数字内窥镜检查有限公司 Endoscope head, endoscope, and Albron rod holding member

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