WO2013071712A1

WO2013071712A1 - Bendable and visible surgical clamp

Info

Publication number: WO2013071712A1
Application number: PCT/CN2012/071117
Authority: WO
Inventors: 俞国良; 王跃东; 陈尧松; 王海丽
Original assignee: 杭州好克光电仪器有限公司
Priority date: 2011-11-14
Filing date: 2012-02-14
Publication date: 2013-05-23
Also published as: CN102525595B; CN102525595A

Abstract

A bendable and visible surgical clamp comprises a main tube (1). One end of the main tube (1) is connected to a mirror (2), and the other end of the main tube (1) is connected to a bent hose (3). A front end (4) is arranged at an end of the bent hose (3), and the front end (4) is connected to a clamp head (5) and a lens component (6). A water spraying nozzle (7) is arranged at the front end (4), the water spraying nozzle (7) is connected to an irrigation opening (9), and the irrigation opening (9) is arranged on the mirror (2). The bent hose is connected to a traction cable (13), the traction cable (13) is connected to a shifting rod (11), the shifting rod (11) is mounted on the mirror (2), and the mirror (2) is further provided with a clamp handle (14). The surgical clamp can be used for clamping hard and soft tissues and is applicable to various places, a surgical instrument can turn at any angle so as to bring convenience for observation, thus improving safety and stability of surgery, and various channels in the main tube are not interfered, being convenient in cleaning. Technical problems that a surgical clamp in the prior art cannot be bent, doctors cannot observe conveniently, and surgical instruments need to be used with an endoscope so that more surgical instruments are used and severer wound is caused to patients are resolved.

Description

Flexible visual surgical forceps

The present invention relates to a surgical instrument, and more particularly to a surgical forceps in which the end of a pioneering, minimally invasive procedure can be bent and the surgical condition can be seen at any time. Background technique

In the current minimally invasive surgery, endoscopes and medical surgical forceps are generally used together, and soft instruments such as soft forceps and guide wires are inserted into the soft mirror, such as biopsy forceps inserted into the gastroscope and colonoscope for biopsy and the like. Products; or insert a hard speculum into the hard peeping forceps for surgery, such as inserting a cystoscope into the bladder hard pliers, inserting a sinus mirror into the sinus hard pliers, and the like. The basic structure of the current medical surgical forceps includes a clamp head, a transmission rod, a transmission rod sleeve, a clamp seat, and a movable clamp handle. The transmission rod sleeve is fixed on the clamp seat, and the end of the transmission rod sleeve is fixed with a clamp head. The transmission rod is in the transmission rod sleeve, and the movable clamp handle drives the transmission rod, and the transmission rod drives the movable portion of the clamp head. There are two types of structure of the movable part of the clamp head, one is the linkage mechanism, the two-bar linkage is open in the jaw, the parallel four-bar linkage is opened in the jaw, and the node behind the hinge linkage of the transmission rod is The other type is a spring jaw. The jaws open under the action of their own elastic force. When the transmission rod pulls the spring jaws backward, the sleeve fixed to the end of the transmission sleeve forces the jaws to close. The so-called visual surgical forceps is an endoscope sheath fixed side by side outside the transmission rod sleeve of the general surgical forceps, the opening of the sheath is near the clamp head, and the endoscope sheath is fixed on the clamp seat and usually passes through the clamp seat. The end of the endoscope sheath has a bayonet mount to which the endoscope is attached. The relevant content mentioned in the existing public documents is: Chinese patent: "Endoscope live sampling clamp (CN201492448U)" refers to a medical device for sampling the esophagus, stomach, and intestines when the endoscope is used. Includes left jaw, right jaw, connecting plate, bracket, jaw sleeve, wire rope, outer sleeve, drive sleeve, retaining sleeve, left fixed block, right fixed block, steering ring, toggle bracket and bracelet; left The jaws and the right jaw are connected by pin movements, and are provided with toothed jaws; the left jaw and the right jaw end are movably connected to the bracket, and the bracket is externally provided with a jaw sleeve; the end of the wire rope is fixed with the jaw sleeve Connection, the other end of the wire rope is fixedly welded to the transmission sleeve, and the control ring is set on the toggle bracket. The control ring is provided with a left fixed block and a right fixed block, and the fixed sleeve is fixedly connected with the transmission sleeve; the left fixed block and the right fixed block are The fixing sleeve is connected, and the fixing sleeve is connected with the steering ring through the left fixing block and the right fixing block; one end of the outer sleeve is fixedly connected with the bracket, and the other end of the outer sleeve is fixedly connected with the dial bracket. Chinese patent: "An endoscopic grasping forceps (CN201631313U)" includes a handle and a drive wire, the distal end of the drive wire is connected with a clamp head having a jaw, and the proximal end of the drive wire is slidably coupled to the slide The handle wire is connected, the outer side of the drive wire is sleeved with a spring hose, the proximal end of the drive wire is sleeved with a rotating wheel, and the rotating wheel is rotatably disposed on the handle, wherein the sliding handle can slide along the axial direction of the transmission wire The transmission wire and the circumferential direction of the rotating wheel are not fixed, and the driving wire is not axially connected to the sliding handle. Both of the above structures are hard sight glasses and hard-view tongs, and the elastic members cannot achieve circumferential rotation, and the surgical instruments are not flexible enough. Disclosure of invention

The invention provides a soft and hard balance, can adapt to various occasions, the surgical instrument can be turned to any angle, is convenient for observation, improves the safety and stability of the operation, and the channels in the main tube do not interfere with each other, and the bendable for easy cleaning Visual surgical forceps; solves the problem that the surgical forceps existing in the prior art cannot bend, is not convenient for the doctor to observe, the surgical instruments must be used together with the endoscope, the instruments are numerous, and the trauma to the patient is large. Question.

The above technical problem of the present invention is solved by the following technical solutions: A bendable visual surgical forceps, including a main tube, a main body connected with a mirror body, and parallel water vapor channels and image transmission in the main tube a channel, a bent hose is connected to the other end of the main pipe, a front end head is provided at an end of the bent hose, and a clamp head and a lens component are connected to the front end head, and the front end head is opened a water spout, the spout is connected to a water gas passage in the main pipe, and the other end of the water gas passage is connected with a flushing port, wherein the flushing port is opened on the mirror body; A traction cable is connected to the folding hose, the traction cable is connected with the toggle lever, the toggle lever is mounted on the mirror body, and a clamp handle is arranged on the mirror body, and the clamp handle is connected with the cable and the clamp head. Connected, a display socket is arranged on the mirror body, a display screen is connected to the display socket, the display socket is connected to the image transmission channel, and a power socket is arranged at the rear end of the mirror body.

The lens assembly is a combination of a CCD lens, an LED light board and an object lens. During operation, the CCD and the LED panel are energized by the power supply of the access handle or the external power matcher. The LED illuminates the cavity, and the lens is transmitted to the CCD signal through the light. The CCD sends the collected signal to the display to display the observed image.

The front end of the bent hose has both the lens assembly and the clamp head, and the image is transmitted through the lens assembly, and the display socket on the mirror body is externally connected to the display device for observation, thereby clearly controlling the rotation angle and clamping force of the clamp head. The rotation angle of the clamp head is controlled by the traction rod through the traction cable, and the toggle lever is moved to adjust the bending angle of the bending hose, thereby adjusting the angle of observation and the working angle of the clamp head. The clamping and relaxation of the jaws is controlled by the shank on the mirror body. The power outlet can be connected to a DC power supply or an AC power supply to match the lens assembly to help the doctor perform the surgery better. Separate the channels in the supervisor and do not interfere with each other. At the end of the image transmission channel is the lens assembly. When the water channel can move water or fog appears on the lens, the mist is sucked away, and the water channel forms a separate channel. It can perform flushing of wounds or access to soft surgical instruments. Of course, it is also possible to connect the standard flushing port mounted on the bendable visible pliers to the external flushing device. For example, a suction syringe, a medical suction pump, etc.; or a surgical instrument such as a guide wire can be inserted. One end of the image transmission channel is connected to the lens assembly, and the other end is connected to the display socket, and the image captured by the lens assembly is transmitted to the display device, one end of the water gas channel is connected with the flushing port, and the other end is connected with the water spout on the front end head to ensure The flow of water or air is unblocked. The front end of the bent hose connection is a rigid tube, which is convenient for fixing the clamp head and mounting the lens assembly, and opening the water spout. Both ends of the bent hose are hard tubes. The main tube is a rigid tube, which is convenient for inserting the device into the cavity of the human body to ensure the rigidity of the device. Only the bent hose is a soft tube that can be bent to realize the lens. The angle of the assembly is taken at any angle, and the work of the clamp head is convenient.

The invention combines the surgical instrument and the endoscope organically, regardless of whether the endoscope or the surgical instrument is inserted first, the tissue is not pinched by the insertion, the tissue can be directly observed, the pathogen can be accurately found and the operation can be performed according to the Free bending angles allow for easy access to complex intracavitary examinations, biopsy and tissue separation. The invention fully utilizes the working principle of the soft mirror and the hard-view tongs, and effectively combines the two, and combines both soft and hard, adapts to various occasions, simplifies the structure, and reduces the cost.

Preferably, the bending hose and the front end head are connected by a front ring, the front ring is annular stepped, and the large diameter end of the front ring is connected with the front end, and the small diameter end of the front ring is Bend hoses are connected. The front ring is provided to facilitate the connection of the two materials without affecting the performance and original construction of the two components, improving the stability of the connection and installing the remaining components for easy manufacture and installation.

The clamp handle controls the opening and closing of the clamp head through the connecting cable, first closes the rear handle of the clamp handle and the front handle to close the left and right clamp heads, and then locks the rack on the lock handle with the front handle through the compression spring; Due to the closing lock of the pliers, the front and rear movement of the rod is driven, that is, the opening and closing of the jaws are driven by the pliers cable.

A passage is provided in the bending hose for connecting the cable, the end of the connecting cable is connected with a core, the core is connected with a movable section board, the movable section is hinged, the movable section is connected with the clamp, the forceps The opening and clamping of the head is to move the core head back and forth by the twitch of the connecting cable, so that the movable section is opened and closed. Thereby opening and closing of the jaws is achieved.

Preferably, the traction cable is one, and both ends of the traction cable are fixed at the front end of the bending hose, and the front ring is bonded to the inner wall of the front end of the bending hose, and the traction cable is bonded to the same in the front ring. At both ends of a diameter of the cross section, the closed end of the traction cable is wound around and fixed to the hub of the mirror body, and the hub is connected to the toggle lever through the main shaft. The traction cable is a steel cable, and the ends of the traction cable are arranged opposite each other, and the angle of the bending hose can be conveniently adjusted. The rotation of the toggle lever drives the spindle to rotate, so that the hub rotates. Since the traction cable is fixed on the hub, there are four fixed points on the cable, the hub rotates, and both ends of the traction cable move, so that the bent hose is generated. Bend.

More preferably, the outer circumferential surface of the hub is provided with two or more annular grooves, and a card slot is defined in each of the upper and lower end faces of the hub, and the card slot is opened on the groove wall of the annular groove, The card slots are respectively located at two ends of the same diameter of the hub, and a through hole is further formed in the end surface of the hub. One of the points of the traction cable is welded in the slot of the upper end surface, and after the traction cable passes through the through hole, the traction cable is further One point is welded in the card slot of the lower end face. The two ring grooves allow the traction cable to have a guide groove, which is then welded into the groove on the ring groove, and the traction cable passes through the through hole in the hub for the second welding. The traction cable passes through the through hole, and two or more annular grooves are started on the outer circumferential surface, so that the traction cable can wrap around the annular groove when the hub rotates for more than one week, and the two ends of the traction cable are still movable, and the bending is improved. The bending angle of the tube. The angle between the through hole and the card slot is 90 degrees, which can ensure the symmetry of the rotation on both sides.

Preferably, the rear end of the bent hose is connected to the main pipe through the rear ring, the rear ring is welded to the main pipe, and the main pipe is connected to the mirror body through the main rear ring. The rear ring and the main rear ring act as connectors to increase ease of installation and stability of the equipment.

Preferably, the mirror body is provided with a base, and a hub is disposed in the base, the hub is sleeved on the main shaft, a spindle hole is opened at one end of the toggle lever, and a concave cavity is opened at the other end of the toggle lever. Provided in the cavity The transition piece, the toggle lever is connected with a locking button through the transition piece, and a shaft hole concentric with the spindle hole of the toggle lever is opened on the transition piece, and the spindle passes through the shaft hole of the transition piece and the center of the toggle lever in sequence, on the spindle The connecting part of the transition piece is a square shaft, one end of the main shaft is fixed with the block in the base, the other end of the main shaft is fixed by bolts, and a friction component is arranged between the toggle lever and the transition piece, and the bolt and the transition piece are There are limit components between them. Install a locking button on the back of the toggle lever. When the toggle lever drives the hub to rotate, so that the bending hose is bent to the desired position, the locking button is rotated, the locking button is fixed with the transition piece, and the locking button drives the transition. The axial movement of the piece along the main shaft compresses the friction component, which brings a large damping force to make the toggle lever work under strong action without damaging the mechanism, thereby avoiding the harm caused by the doctor's misoperation. Improve the stability and safety of the equipment. The limit assembly between the bolt and the transition piece acts as a limit when the lock button is released, allowing the relative position of the transition piece and the spindle to be determined. The shape of the main shaft varies according to the different components of the upper sleeve. The position where the toggle lever and the hub meet is a circular shaft, and the toggle lever and the main shaft have an interference fit to ensure the synchronous rotation of the two. At the junction of the main shaft and the transition piece, the outer circumferential surface of the main shaft is provided with a thread, and a square shaft is formed on the outer circumferential surface. The square shaft of the round shaft near the left end is used to fit the square hole cover plate, and the cover plate moves axially to ensure the effective pressing force with the friction assembly; the intermediate square shaft is formed for the purpose of facilitating the passage of the cover plate and reducing the spiral resistance. The ring of the two shafts is used to facilitate the undercut of the thread processing; the square shaft at the right end is used to fix the lower tooth piece, and the upper tooth piece can adjust the meshing position according to the magnitude of the locking force (ie, the relative position is established).

More preferably, the friction assembly includes a friction plate, a friction pad seat and a spring piece between the toggle lever and the transition piece, and an outer circumferential surface of the friction plate is in contact with an inner wall of the cavity of the toggle lever. One end of the friction plate is connected to the transition piece through the cover plate, and is connected to the friction plate seat at the other end of the friction plate, the friction plate seat is in contact with the elastic piece, and the other end of the elastic piece is in contact with the toggle rod. The axial movement of the transition piece compresses the axially disposed friction plates, the friction plate seats and the spring pieces, and the frictional force is increased to lock the toggle lever. More preferably, the limiting component comprises an upper tooth piece and a lower tooth piece, the upper tooth piece and the lower tooth piece are sleeved on the main shaft, the upper tooth piece is in contact with the bolt, and the lower tooth piece is in contact with the transition piece. The upper and lower teeth are used together to limit the position. Fix the relative position between the transition piece and the shaft.

Preferably, the mirror body is connected with a power handle through a power socket, the power socket is provided with an insulating pad, and a fixed pin is arranged in the insulating pad, and the power handle has a movement matched with the fixed pin. The needle has a spring attached to the movable needle sleeve, the movable needle and the spring are located in the elastic seat, the spring seat is located in the power handle, and the lock is connected at the connection between the power handle and the power socket, and the DC-DC converter is arranged in the power handle Or an AC-DC converter. The power socket is designed in the form of a pin, and the power is turned on by the connection of the fixed pin and the moving pin. The power socket can be connected to either DC power or AC power. Depending on the power supply, different converters can be selected to facilitate the use of the equipment in various situations. When installing, the lug on the power handle is inserted into the notch on the power socket, and the toggle lock is rotated by 90°, because the thread of the lock and the handle lock and the buckle at the front end of the buckle will buckle the convex body on the mirror body. The table, the concave cone on the power handle and the convex cone on the mirror lock are tightly combined. The connection is accurate and very firm.

After installation, the moving needle is pressed under the action of the spring force to make the contact good. On the other hand, the surface of the moving needle and the fixed needle are subjected to a gold plating process to further reduce the contact resistance.

When the latch is turned 90° in the opposite direction, the power handle can be separated from the mirror body. Due to the sealing glue between the fixed pin, the insulating pad, the power socket and the mirror body, it can meet the requirements of medical immersion disinfection. The fixing pin and the insulating mat are designed as a flat surface for easy scrubbing. Doctors often use alcohol cotton to scrub the contact surface to remove dirt.

Preferably, the bending hose comprises a curved joint, the curved joint is wrapped with a curved mesh, and the curved mesh is wrapped with a curved skin. The bending joint achieves a fixed angle of bending, and the curved joint is wrapped with a curved mesh and a curved skin to improve the toughness of the curved pipe, and the curved pipe is inserted into the human body cavity. Therefore, the bendable visual surgical forceps of the present invention have the following advantages:

(1), simple structure, low equipment cost: The product of the invention abandons the traditional design concept (a hard-spot pliers and inserts a hard speculum to observe the working mode); fully utilizes the working principle of the soft mirror and the hard-view pliers, Effectively combined, soft and hard, adapt to various occasions; simplify the structure and reduce costs. It reduces the psychological and physiological pressure and the heavier economic burden of the patient due to the first examination and reoperation; the patient recovers quickly; and effectively reduces the cost of the hospital purchasing two or more devices at the same time.

(2), the device is easy to operate: there is no insertion point, it will not pinch the tissue because of insertion; the connection is convenient, the observation is intuitive and clear, the pathogen can be accurately found and the operation can be performed; the operation can be freely operated according to different bending angles. Access to complex intracavitary examinations, biopsies, and tissue separation.

(3), good safety, strong applicability: can be used for a variety of groundbreaking, minimally invasive surgery, can also be used for inspections and various non-invasive routine examinations; can also choose different types of forceps according to different requirements of the operation Head to achieve different medical effects; the maximum internal voltage of the instrument is only 5V, which does not pose a threat to the human body, so it is absolutely safe for doctors or patients.

(4) Full-featured and adaptable: It is convenient to replace the battery. When the battery is not equipped, you can connect the power adapter to the mains. You can visually see the insertion position, which can be observed by many people. Under the observation of the large display, it plays a very good role in educational observation; it can perform operation recording and data computer output and save.

(5), easy to clean and disinfect: This equipment adopts multi-channel design, each channel does not interfere with each other, easy to clean; easy to clean and disinfect.

DRAWINGS

1 is a schematic view of a bendable visual surgical forceps of the present invention. Figure 3 is an enlarged axial schematic view of the front end of Figure 2.

Figure 4 is an enlarged cross-sectional view of Figure 2.

Figure 5 is a schematic view of the front and rear connections of the main pipe.

Fig. 6 is an enlarged cross-sectional view showing the toggle lever of the scope.

Figure 7 is a perspective view of the traction cable with the traction cable attached to the hub.

Figure 8 is a perspective view of a traction cable welded to the hub.

Figure 9 is an exploded and enlarged schematic view of the mirror body and the power handle.

Figure 10 is an enlarged schematic view of the shank portion. Best way to implement the invention

The technical solutions of the present invention will be further specifically described below by way of embodiments and with reference to the accompanying drawings. Example:

As shown in Figures 1 and 2, the flexible surgical forceps include a main tube 1, one end of the main tube 1 is connected with a mirror body 2, and the other end of the main tube 1 is connected with a bending hose 3, which is softly bent. A tip end head 4 is connected to the end of the tube 3, and the jaw 5 and the lens member 6 are connected to the head 4, and a water spout 7 is also opened on the head 4. The lens assembly is a combination of a CCD lens, an LED light board and an object lens. A display socket 8 and a flushing port 9 are respectively mounted on two sides of the mirror body 2, and a power socket 10 is disposed at a rear end of the mirror body 2, and a toggle lever 11 and a locking button 12 are mounted behind the flushing port 9, and are toggled The rod 11 controls the bending angle of the bending hose 3 through the traction cable 13. When the toggle lever 11 adjusts the angle of the bending hose 3, the rotation locking button 12 locks the toggle lever 11 to prevent the doctor from misoperation. . A caliper handle 14 is mounted below the scope 2, and the caliper handle 14 is connected to the jaw 5 via a connecting cable 15.

As shown in FIG. 3, a 3.5-inch display screen 16 can be mounted on the display socket 8, when not in use, Sealed with a sealing cover 47. The flushing port 9 is connected to the water gas passage 17 in the main pipe 1, and the other end of the water gas passage 17 is connected to the flushing port 9 of the front end head 4. An image transmission path 18 parallel to the water gas passage 17 is also provided in the main pipe 1, and both ends of the image transmission path 18 are connected to the lens unit 6 of the front end head 4 and the display socket 8 on the scope 2, respectively.

As shown in Fig. 4, the bent hose 3 includes a curved joint 19, and the curved joint 19 is wrapped with a curved net 20, and a curved skin 21 is wrapped around the curved net 20. The bent hose 3 is connected to the front end head 4 through the front ring 22, and the front ring 22 is annularly stepped. The large diameter end of the front ring 22 is connected to the front end head 4, and the small diameter end of the front ring 22 is softened. Tube 3 is connected. The opening and clamping of the clamp head 5 is to move the core head 23 back and forth by the twitch of the connecting cable 15, so that the movable joint plate 24 is opened and closed, thereby opening and closing the clamp head 5.

As shown in Fig. 5, the rear end of the bent hose 3 is connected to the main pipe through the rear ring 25, the rear ring 25 is welded to the main pipe 1, and the main pipe 1 is connected to the mirror body 2 through the main rear ring 50.

As shown in FIG. 6, the traction cable 13 is a steel cable, and the traction cable 13 is one. The two ends of the traction cable 13 are respectively fixed on the front ring 4 of the front end of the bending hose 3, and the two ends of the traction cable 13 are symmetric. The ends of the same diameter of the same radial section of the front bead 4 are bonded, and the middle portion of the traction cable 13 is wound around and welded to the hub 26 in the scope 2, and the hub 26 is connected to the toggle lever 11 via the main shaft 27. The mirror body 2 has a bowl-shaped base 28, and a hub 26 is arranged in the base 28, and the hub 26 is sleeved on the leftmost end of the spindle 27 to rotate synchronously with the spindle 27, and the shifting rod 11 is also sleeved on the spindle 27 at the same time. Transition member 29, upper and lower teeth and other components. One end of one end of the toggle lever 11 is provided with a spindle hole, the toggle lever 11 is interference-fitted with the spindle 27, the other end of the toggle lever 11 is provided with a cavity, and a transition piece 29 is disposed in the cavity, and the toggle lever 11 is passed through The transition piece 29 is connected with a locking button 12, and the transition piece 29 is provided with a shaft hole concentric with the hole of the main shaft 27 of the toggle lever 11, and the main shaft 27 sequentially passes through the shaft hole of the transition piece 29 and the center of the toggle lever 11, the main shaft 27 is connected to the transition piece 29 as a square The shaft, one end of the main shaft 27 is fixed to the spacer 30 in the base 28, and the other end is fixed by a bolt 31. The base is connected to the fixing ring 51, and a part of the fixing ring is sleeved on the toggle lever 11. There is a friction assembly between the toggle lever 11 and the transition piece 29, and the friction assembly includes a friction plate 32 between the toggle lever 11 and the transition piece 29, a friction pad holder 33 and a spring piece 34, and the outer circumferential surface of the friction plate 32 is The inner wall of the recessed portion of the toggle lever 11 is connected, one end of the friction plate 33 is connected to the transition piece 29 through the cover plate 35, and the other end of the friction plate 32 is connected to the friction plate holder 33, and the friction plate holder 33 is connected to the elastic piece 34. The other end of the elastic piece 34 is in contact with the toggle lever 11. A limiting assembly is disposed between the bolt 31 and the transition piece 29, the limiting assembly includes an upper tooth piece 36 and a lower tooth piece 37, and the upper tooth piece 36 and the lower tooth piece 37 are sleeved on the main shaft 27, the upper tooth piece 36 and the bolt 31 is connected, and the lower tooth piece 37 is in contact with the transition piece 29. When the toggle lever 11 is dialed to the desired angle, the lock knob 12 is rotated counterclockwise to the limit position of the upper blade 36, and an axial force is generated by the action of the helix angle when the lock knob is rotated, so that the cover The plate is pressed against the friction plate and the friction plate seat, which brings a large damping force to enable the toggle lever 11 to work under strong action without damaging the mechanism, and also avoids the harm caused by the doctor's misoperation.

As shown in FIGS. 7 and 8, the outer circumferential surface of the hub 26 is provided with two or more annular grooves 38. A card slot 39 is defined in each of the upper and lower end faces of the hub 26. The slot 39 is formed in the groove wall of the annular groove. The two card slots 39 are respectively located at two ends of the same diameter of the hub 26. A through hole 40 is further defined in the end surface of the hub 26. One of the points of the traction cable 13 is welded in the slot 39 of the upper end surface, and the traction cable 13 After passing through the through hole 40, another point of the traction cable 13 is welded into the card slot 39 of the lower end surface. The driving hub 26 of the toggle lever 11 rotates, and by the forward and backward movement of the toggle lever 11, the traction cable 13 moves forward and backward in the bending hose 3 on the front collar 22 to bend the bending joint up and down.

As shown in FIG. 9, the mirror body 2 is connected to the power supply handle 41 via the power socket 10. The power socket 41 is filled with an insulating pad 42 in which fixed pins 43 parallel to each other are mounted, and the power supply handle 41 is mounted on the power supply handle 41. The movable needle 44 is matched with the fixed needle 43. The movable needle 44 is sleeved with a spring 52. The movable needle 44 and the spring 52 are both located in the elastic seat 53. The power supply handle 41 and the power socket 10 are connected with a lock. 45. The power supply handle 41 and the power socket 10 are fixed by a lock 45. A DC-DC converter 46 or an AC-DC converter is provided in the power supply handle 41, and the converter is selected according to the selected power source. When using, first remove the sealing cover 47, the DVR display with video recording and photographing function is instructed, the red dot is aligned into the display socket 8, and the nut is tightened; then the battery power supply handle 41 is installed and the power socket is pressed. 10 cooperate with the lock; press the button switch at the bottom of the power handle 41, the CCD image sensor with the lens on the front end 4 starts working, and the image is transmitted to the display to output the image signal; also can be used by the external power matcher and the power socket as indicated With the locking, connect the plug of the external power matcher to the mains socket; it can be used when the power of the handle is insufficient or the operation is inconvenient. The DC-DC converter converts the 3.7V lithium battery into 5V and 3.3V two-way output, and can also be connected to the mains to convert 110V or 220V into 5V or 3.3V two-way output via AC-DC converter, 5V for DVR Display, 3.3V for CCD image sensor and illumination. The illumination of the mirror uses high-brightness LEDs, and the current-limiting resistor R controls the magnitude of the operating current.

As shown in FIG. 10, the rear handle of the caliper handle 14 is first brought close to the front handle to close the left and right clamp heads, and then the rack on the lock handle is locked with the front handle by the pressure spring 48; due to the closing of the shank 14 The locking moves the front and rear movement of the pull rod 49, that is, the opening and closing of the clamp head by connecting the cable 15; inserting the bendable visible forceps according to the operation needs, and finding the need for biopsy, clamping or surgery according to the tissue displayed on the display The part is operated, and the handle can be locked or loosened as required.

Claims

Rights request

1 . A bendable visual surgical forceps comprising a main body, the main body being connected with a mirror body, wherein: the main pipe is provided with parallel water and gas passages and an image transmission channel, and the other a bent hose is connected at one end, a front end head is arranged at an end of the bent hose, a clamp head and a lens component are connected to the front end head, and a water spray port is opened on the front end head, and the spray is sprayed The water outlet is connected to the water gas passage in the main pipe, and the other end of the water gas passage is connected with a flushing port, and the flushing port is opened on the mirror body; and the traction cable is connected to the bent hose. The traction cable is connected to the toggle lever, the toggle lever is mounted on the mirror body, and the clamp body is provided with a clamp handle. The clamp handle is connected to the clamp head by connecting the steel cable, and the display body is provided with a display. The socket is connected with a display screen, and the display socket is connected to the image transmission channel, and a power socket is arranged at the rear end of the mirror body.

2. The bendable visual surgical forceps according to claim 1, wherein: said bending hose and said front end are connected by a front ring, said front ring being annular stepped, front ring One end of the large diameter is connected to the front end, and the small diameter end of the front ring is connected to the bent hose.

The flexible operating surgical forceps according to claim 1 or 2, wherein: the traction cable is one, and both ends of the traction cable are fixed at the front end of the bending hose, and the bending hose is The front end inner wall is coupled with a front ring, and the traction cable is coupled to one end of a diameter of the same cross section of the front ring. The closed end of the traction cable is surrounded and fixed on the hub of the mirror body, and the hub is connected to the toggle rod through the main shaft.

The flexible operating surgical forceps according to claim 3, wherein: the outer circumferential surface of the hub is provided with two or more annular grooves, and one of the upper and lower end faces of the hub is provided with a card slot. The card slot is defined in the slot wall of the annular slot, and the two card slots are respectively located at two ends of the same diameter of the hub, and a through hole is further formed in the end surface of the hub, and one of the points of the traction cable is welded to the upper end surface. In the card slot, after the traction cable passes through the through hole, another point of the traction cable is welded in the card slot of the lower end surface.

The bendable visual surgical forceps according to claim 1 or 2, wherein: the rear end of the bent hose is connected to the main pipe through the rear ring, and the rear ring is welded to the main pipe, and the main pipe passes The main rear ring is connected to the mirror body.

The flexible operating surgical forceps according to claim 1 or 2, wherein: the mirror body is provided with a base, a hub is arranged in the base, the hub is sleeved on the main shaft, and the toggle lever is One end of the one end is provided with a spindle hole, and the other end of the toggle lever is provided with a cavity, and a transition piece is arranged in the cavity, and the toggle lever is connected with a locking button through the transition piece, and a toggle lever is opened on the transition piece The main shaft hole has a concentric shaft hole. The main shaft passes through the shaft hole of the transition piece and the center of the toggle rod in sequence. The main shaft is connected with the transition piece as a square shaft. One end of the main shaft is fixed with the block in the base, and the main shaft is fixed. One end is fixed by bolts, a friction assembly is arranged between the toggle lever and the transition piece, and a limit assembly is arranged between the bolt and the transition piece.

7. The bendable visual surgical forceps according to claim 6, wherein: said friction assembly comprises a friction plate, a friction pad holder and a spring piece between the toggle lever and the transition piece, said friction plate The outer circumferential surface is in contact with the inner wall of the concave cavity of the toggle lever, and one end of the friction plate is connected to the transition piece through the cover plate, and is connected to the friction plate seat at the other end of the friction plate, and the friction plate seat is connected with the elastic piece, and the elastic piece is another One end is connected to the toggle lever.

The bendable visual surgical forceps according to claim 6, wherein: the limiting component comprises an upper tooth piece and a lower tooth piece, and the upper tooth piece and the lower tooth piece are sleeved on the main shaft, the upper tooth The piece is connected to the bolt, and the lower piece is connected to the transition piece.

The bendable visual surgical forceps according to claim 1 or 2, wherein: the mirror body is connected to a power supply handle through a power socket, and the power socket is provided with an insulating mat in the insulating mat. A fixed needle is arranged, the power handle has a moving needle matched with the fixed needle, the spring is connected to the movable needle sleeve, the movable needle and the spring are located in the elastic seat, the elastic seat is located in the power handle, the power handle and the power supply Socket connection There is a lock, and a DC-DC converter or AC-DC converter is provided in the power handle.

10. The bendable visual surgical forceps according to claim 1 or 2, wherein: the bent hose comprises a curved joint, the curved joint is wrapped with a curved mesh, and the curved mesh is wrapped with a bend.