WO2001010289A2 - Surgical camera apparatus and method - Google Patents
Surgical camera apparatus and method Download PDFInfo
- Publication number
- WO2001010289A2 WO2001010289A2 PCT/GB2000/003026 GB0003026W WO0110289A2 WO 2001010289 A2 WO2001010289 A2 WO 2001010289A2 GB 0003026 W GB0003026 W GB 0003026W WO 0110289 A2 WO0110289 A2 WO 0110289A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- camera
- surgical
- patient
- port
- movement
- Prior art date
Links
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
- A61B1/313—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 for introducing through surgical openings, e.g. laparoscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
Definitions
- the present invention relates to a device and method for use with a surgical camera, particularly but not exclusively a laparoscopic camera.
- a camera is used to provide vision for the surgeon.
- the surgeon does not usually operate the camera, such that he relies upon the co-ordination of an assistant to control the movement and direction of vision of the camera, whilst he conducts the surgery.
- the assistant can easily allow the camera to 'drift'. Accidental rotational drift is the commonest problem, thereby leading to orientational error as the surgeon attempts to maintain co-ordination of the monitored display of camera information, with his own surgical procedure.
- Such visual data can be overlaid on the visual laparoscopic image.
- a device adapted to receive a surgical camera useable in a patient and having means to detect rotational and/or longitudinal movement of the camera relative to a reference point in, on or about the patient.
- the device may also be able to measure any rotational and/or longitudinal movement of the camera relative to the reference point.
- the reference point is the or one of the surgical points of entry into the patient, e.g. a surgical port means.
- the device may be integral with the camera and/or port, or be formed as a separate unit adapted to be fitted to or otherwise conjoin with known camera and port apparatus.
- the device may be releasably conjoinable therewith.
- the detection means for use with the present invention includes any suitable apparatus, device, means or unit adapted to detect effective movement between two parts .
- the means may involve any, or any combination of, electrical, electromagnetic, optical and/or mechanical apparatus , etc .
- the detection means may include one or more sensor means, such as an optical transmitter/receiver.
- the sensor means may be able to detect camera movement directly.
- the detection means includes intermediate means such as one or more belts or rollers, or one or more cog wheels such as a gear train, the movement of which relates to movement of the camera relative to the patient.
- the camera and/or any such intermediate means as described herein before may be graded or graduated, the passage of which is what is detected.
- the device in another embodiment, includes a sleeve coaxial with a surgical port, either therewithin or therewithout, and movement of the sleeve is proportional to the rotational and/or longitudinal movement of the camera relative to the port.
- the device includes control means, encoder means and/or information relay means .
- a visual display unit e.g. the existing visual display means showing the surgical e.g. laparoscopic image from the camera.
- the device of the present invention may also include a visual and/or audible alarm means or alarm- initiator means adapted to provide a visual and/or audible alarm signal in the event of an undesired and/or (possibly) predetermined rotational and/or longitudinal movement of the camera relative to the port being detected.
- the device of the present invention can be constructed and made to any suitable size, shape and design. In one embodiment, the device can be made sufficiently simply to be disposable. The device is usable in any form of surgery using a camera, e.g. laparoscopy and endoscopy.
- a method to detect rotational and/or longitudinal movement of a surgical camera useable in a patient relative to a reference point in, on or about the patient wherein a device as defined herein before is conjoined with the camera in use and detects the relative movement.
- a method of detecting and/or measuring rotational and/or longitudinal movement of a camera relative to a surgical port means wherein the device is adapted to mate with the camera and the port has means adapted to measure and/or detect such movement.
- Part of the camera is preferably inserted through the device in use .
- Fig 1 is a perspective view of a device according to one embodiment of the present invention.
- Fig 2 is a perspective view of the device in Fig 1, with mating camera and laparoscopic port;
- Fig 3 is a perspective view of a device according to a second embodiment of the present invention.
- Fig 4 is a perspective view of the internal workings of the device shown in Fig 3;
- Figs 5a and 5b are top and side views of the means shown in Fig 4 ;
- Fig 6 is a side view of a device according to a third embodiment of the present invention with attached port and camera;
- Fig 7 is a perspective view of parts of a device according to a fourth embodiment of the present invention
- Fig 8 shows a schematic perspective view of parts of a device according to a fifth embodiment of the present invention
- Fig 9 shows a schematic view of a visual data display having on-screen graphics provided from information from a device of the present invention
- Fig 10 is a schematic flow diagram of analysis of information from means of the present invention.
- Figure 1 shows a general device 2 according to one embodiment of the present invention.
- Fig 2 shows a general laparoscopic port 1 which can be inserted into a patient, and is designed for use with for example a trocar. Attached to the port 1 is the device 2, and attached to the device 2 is a general laparoscopic camera 3.
- FIG 3 shows a second general device 4 according to the present invention, whose internal mechanism is shown in Figures 4, 5a and 5b.
- the primary drive of the laparoscopic camera device 4 is manual.
- a laparoscope (not shown) is inserted into the orifice 6, and this orifice 6 also forms the gaiter 8, which provides frictional rotational drive for the laparoscopic camera control system.
- the gaiter 8 is bonded to the primary wheel 12 of a gear train mechanism.
- the gear train mechanism is mounted on an internal chassis 13.
- the gear train mechanism provides transmission of rotary movement of the camera to a 180-impulses incremental disk 14.
- the rotational movement of this reflective disk 14 is sensed or detected by an optical transmitter/receiver 16 ( Figure 5b) which is mounted on a printed circuit board 18.
- Electronic signals are transmitted via lead 20 to an information processing device (not shown) which provides software graphic and display and data recording.
- the information from the device 4 is preferably electronically conditioned to provide signals appropriate for interfacing to a computer.
- the computer preferably provides a textual and graphical display, and permits the surgeon to:
- Fig 6 shows a third device 22 according to the present invention.
- the device 22 is around a laparoscopic port 23.
- the device 22 has a frame 26 supporting a sleeve 24, camera mating part 25 and a shaft 28.
- On the shaft 28 is a stator 30 and encoder 32.
- Around the stator 30 and a bush 31 at the top of the sleeve 24 is an intermediate mechanical drive belt pulley 34.
- Attached to the encoder 32 is a connector 36, again connectable to an information relay means, e.g. a lead to a computer and/or a visual display means.
- an information relay means e.g. a lead to a computer and/or a visual display means.
- the device 22 is attached to the port 23 after the port 23 has been inserted into the patient.
- a laparoscopic camera or laparoscope 40 is then inserted into the mating part 25, and the optics are guided through the sleeve part 24.
- the camera 40 and sleeve 24 can be mated using any suitable means, e.g. through friction or a pin and slot arrangement, to rotate together.
- any rotational movement of the camera 40 in use will also cause rotation of the sleeve 24 and the bush 31, and, as a consequence, rotation of the pulley belt 34 and stator 30.
- This motion of the stator 30 can be detected by the encoder 32, and the information relayed via the connector 36 to the visual display means.
- the encoder 32 may also be able to measure the degree of rotational movement, which information could also be suitably relayed.
- Fig 7 shows schematic means for a possible fourth device according to the present invention, using a toothed wheel 44 journalled on a sleeve part or a camera shaft 46, with associated optical reading device and chip 48 able to provide a direct reading of movement of the wheel 44.
- a graded bar alongside the camera shaft 46, or the camera shaft 46 itself is graded, and the longitudinal movement of the shaft 46 is readable by an optical reading device.
- Fig 8 shows schematic means for another possible device, using the arrangement of the device shown in Fig 7, with additional longitudinal motion detecting means based on a frictioned wheel 50 on a sleeve 52.
- the wheel 50 is set to rotate upon longitudinal movement of the sleeve etc 52, and relate its movement to another toothed wheel 54, thereby providing both rotational and longitudinal movement detection and/or measurement.
- the longitudinal means could act directly on the shaft of a laparoscope or other camera.
- the present invention provides an important advance in assisting surgeons in endoscopic and laparoscopic surgery to maintain visual understanding of the in situ surgical procedure. Such visual understanding is very dependent upon the position of the camera, which is then dependent upon the handling ability of the human camera operator.
- the present invention allows the surgeon to maintain and track camera movement with the position of his surgical instruments with considerably more control.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00956649A EP1207777A2 (en) | 1999-08-10 | 2000-08-10 | Surgical camera apparatus and method |
AU68523/00A AU6852300A (en) | 1999-08-10 | 2000-08-10 | Surgical camera apparatus and method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9918703.1A GB9918703D0 (en) | 1999-08-10 | 1999-08-10 | Laparoscopic camera control system |
GB9918703.1 | 1999-08-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001010289A2 true WO2001010289A2 (en) | 2001-02-15 |
WO2001010289A3 WO2001010289A3 (en) | 2001-09-20 |
Family
ID=10858808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2000/003026 WO2001010289A2 (en) | 1999-08-10 | 2000-08-10 | Surgical camera apparatus and method |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1207777A2 (en) |
AU (1) | AU6852300A (en) |
GB (1) | GB9918703D0 (en) |
WO (1) | WO2001010289A2 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54154759U (en) * | 1978-04-20 | 1979-10-27 | ||
US5005559A (en) * | 1989-07-27 | 1991-04-09 | Massachusetts Institute Of Technology | Video-graphic arthroscopy system |
NL9301210A (en) * | 1993-07-09 | 1995-02-01 | Robert Philippe Koninckx | Image display system with image position correction. |
US6097423A (en) * | 1997-06-06 | 2000-08-01 | Karl Storz Imaging, Inc. | Image orientation for endoscopic video displays |
-
1999
- 1999-08-10 GB GBGB9918703.1A patent/GB9918703D0/en not_active Ceased
-
2000
- 2000-08-10 EP EP00956649A patent/EP1207777A2/en not_active Withdrawn
- 2000-08-10 WO PCT/GB2000/003026 patent/WO2001010289A2/en not_active Application Discontinuation
- 2000-08-10 AU AU68523/00A patent/AU6852300A/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
None |
Also Published As
Publication number | Publication date |
---|---|
AU6852300A (en) | 2001-03-05 |
EP1207777A2 (en) | 2002-05-29 |
WO2001010289A3 (en) | 2001-09-20 |
GB9918703D0 (en) | 1999-10-13 |
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