CN113616278B

CN113616278B - Endoscope clamp capable of being bent

Info

Publication number: CN113616278B
Application number: CN202110873851.7A
Authority: CN
Inventors: 李伟正; 王国慧; 凌颢; 朱利勇; 李鹏洲; 朱晒红
Original assignee: Third Xiangya Hospital of Central South University
Current assignee: Third Xiangya Hospital of Central South University
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-08-30
Anticipated expiration: 2041-07-30
Also published as: CN113616278A

Abstract

The invention discloses a turnable endoscope clamp, which comprises a clamp handle, a clamp rod and a clamp head, wherein the clamp handle and the clamp head are arranged at two ends of the clamp rod, and the clamp handle is connected with the clamp rod in a swinging mode. The swing setting of the forceps handle and the forceps rod of the endoscope forceps can be realized, so that the forceps rod can realize turning relative to the forceps handle, a part of external operation space can be flexibly swung to make way when an operating doctor operates the endoscope forceps, interference with a mechanical arm of a surgical robot or other operating doctors is avoided, and smooth operation is further ensured.

Description

Endoscope clamp capable of being bent

Technical Field

The invention relates to the field of medical auxiliary instruments, in particular to a turnable endoscope clamp.

Background

At present, in the laparoscopic minimally invasive surgery process, a plurality of surgeons and auxiliary operating personnel are required to work in a coordinated manner, and after one of the surgeons inserts the endoscopic clamp in the surgery process, as the clamp handle and the clamp rod of the endoscopic clamp are of a straight line fixing structure, part of external operation space cannot be flexibly swung out, and the problem that the hands of the surgeons interfere with each other cannot be avoided.

Also, as surgical robot-assisted surgery has become more common, a large portion of the surgical space is occupied when the robot arms are suspended above the patient lying. After the operating doctor inserts the laparoscopic forceps in the operation process, the problem that the hands of the operating doctor interfere with the mechanical arm of the surgical robot can also occur, and then the smooth operation is hindered.

Disclosure of Invention

The invention aims to provide a turnable endoscope clamp, so that the problems are solved.

In order to achieve the purpose, the invention discloses a turnable endoscope clamp which comprises a clamp handle, a clamp rod and a clamp head, wherein the clamp handle and the clamp head are arranged at two ends of the clamp rod, and the clamp handle is connected with the clamp rod in a swinging mode.

Furthermore, the clamp handle comprises a fixed handle and a movable handle which are hinged with each other, a driving rope is arranged in the clamp rod, one end of the driving rope is connected with the driving rod of the clamp head, and the other end of the driving rope is connected with the driving end of the movable handle.

Furthermore, the binding clip includes binding clip seat, clamp and reset spring, be provided with binding clip seat hole in the binding clip seat, the actuating lever with binding clip seat hole sliding connection, the one end of this actuating lever with the clamp is articulated, the other end with the driving rope is connected, reset spring cup joints outside the actuating lever, just reset spring's one end supports and leans on the shaft shoulder department of actuating lever, and the other end supports and leans on the step department of binding clip seat hole.

Furthermore, the clamp handle further comprises a pin joint shaft and a clamp rod seat connected with the fixed handle, an upper pressing block and a lower pressing block are arranged at one end of the clamp rod seat, a U-shaped through groove is formed between the upper pressing block and the lower pressing block, the pin joint shaft penetrates through the U-shaped through groove, the bottom of the pin joint shaft is connected with the lower pressing block, the upper end of the pin joint shaft is connected with the upper pressing block, and the clamp rod is inserted into the U-shaped through groove and is in pin joint with the pin joint shaft.

Furthermore, the clamp device also comprises a locking device which is used for locking and fixing the clamp handle and the clamp rod after the clamp handle and the clamp rod swing for a preset angle.

Furthermore, locking device includes that one establishes the handle nut spiral shell of screw hole in, the bottom of pin joint axle with briquetting rigid coupling down, the upper end slides and runs through go up the briquetting, handle nut spiral shell with the upper end threaded connection of pin joint axle, and the bottom of this handle nut spiral shell supports and leans on the upside of going up the briquetting.

Further, locking device is including the cup jointing the epaxial dead piece of lock of pin joint, the dead piece of lock is located between handle nut and the last briquetting, the circumference of dead piece downside of lock sets up a plurality of bolts, the circumference of going up the briquetting is provided with a plurality of through-holes, the tong lever with the upside of the tip of pin joint axle pin joint is provided with the locating hole, the bolt on the dead piece of lock passes through handle nut rotary drive and insert simultaneously through-hole and locating hole.

Furthermore, the locking device comprises a locking piece sleeved on the pivot shaft, a plurality of bolts are arranged on the lower side of the locking piece in the circumferential direction, a plurality of through holes are formed in the circumferential direction of the upper pressing block, a positioning hole is formed in the upper side of the end part of the pin joint of the clamp rod and the pivot shaft, and an elastic element for driving the bolts of the locking piece to be inserted into the through holes and the positioning hole simultaneously is installed on the clamp rod seat.

Furthermore, the elastic element is an extension spring sleeved on the pivot shaft, a spring mounting hole is formed in the locking piece, the extension spring is arranged in the spring mounting hole, one end of the extension spring is connected with the locking piece, and the other end of the extension spring is connected with the upper pressing block.

Furthermore, a pivoting shaft channel for the driving rope to penetrate through is arranged in the pivoting shaft, and the pivoting shaft channel and the central hole of the clamping rod seat are coaxially arranged.

Furthermore, the pivot shaft channel comprises a thin straight hole close to the binding clip and a fan-shaped groove close to the handle, the open end of the fan-shaped groove faces the binding clip, and the thin straight hole is communicated with the fan-shaped groove at the axis of the pivot shaft.

Furthermore, the end part of the pin joint of the clamping bar and the pin joint shaft is provided with a cylindrical tail end with the diameter larger than that of the clamping bar, and the upper surface and the lower surface of the cylindrical tail end are in surface contact with the upper pressing block and the lower pressing block.

Compared with the prior art, the invention has the advantages that:

the swing setting of the forceps handle and the forceps rod of the endoscope forceps can be realized, so that the forceps rod can realize turning relative to the forceps handle, a part of external operation space can be flexibly swung to make way when an operator operates the endoscope forceps, interference with a mechanical arm of a surgical robot or other operators is avoided, and smooth operation is further guaranteed; meanwhile, a doctor who conveniently operates the endoscope clamp can adjust the posture to be proper, the work is more flexible and convenient, and the work intensity of the doctor is reduced; furthermore, the endoscope clamp has the advantages of simple and practical structure, flexible and reliable work and convenient popularization and application.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is an axial view of a rotatable endoscopic clamp according to one embodiment of the present disclosure;

FIG. 2 is an enlarged schematic view at A of FIG. 1;

FIG. 3 is a schematic front view of a pair of turnable endoscopic forceps according to an embodiment of the present invention;

FIG. 4 is an enlarged view of FIG. 3 at B;

FIG. 5 is an enlarged view at C of FIG. 3;

FIG. 6 is a schematic structural view of a disclosed pliers lever according to an embodiment of the invention;

FIG. 7 is an axial view of the disclosed jaw lever mount according to one embodiment of the present invention;

FIG. 8 is an axial schematic view of a deadlocking member according to an embodiment of the disclosure;

FIG. 9 is an enlarged view at B of FIG. 3 in accordance with the second disclosure of the present invention;

FIG. 10 is an enlarged schematic view at D of FIG. 9;

fig. 11 is an enlarged schematic view at a-a of fig. 10.

Illustration of the drawings:

1. a forceps handle; 11. fixing a handle; 12. a movable handle; 121. a driving end; 122. a handheld end; 13. a pivot shaft; 131. fine straight holes; 132. a sector groove; 133. an axis; 14. a jaw lever seat; 141. pressing the blocks; 142. pressing the block; 143. a U-shaped through groove; 144. a through hole; 2. a clamp lever; 21. a cylindrical end; 22. positioning holes; 3. a binding clip; 31. a forceps head seat; 311. a tong head seat hole; 312. a step; 32. clamping; 33. a return spring; 34. a drive rod; 341. a shaft shoulder; 4. a drive rope; 5. a handle nut; 6. a deadlocking member; 61. a bolt; 62. a spring mounting hole; 7. a tension spring.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

The first embodiment is as follows:

as shown in fig. 1-8, the invention discloses a turnable endoscope clamp, which comprises a clamp handle 1, a clamp rod 2 and a clamp head 3, wherein the clamp handle 1 and the clamp head 3 are detachably arranged at two ends of the clamp rod 2, the clamp handle 1 comprises a fixed handle 11 and a movable handle 12 which are hinged to each other, a driving rope 4 for driving the clamp head 3 to open and close is arranged in the clamp rod 2, the driving rope 4 of the embodiment is a flexible steel wire rope, one end of the driving rope 4 is connected with a driving rod 34 of the clamp head 3, the other end of the driving rope is connected with a driving end 121 at the upper end of the movable handle 12, when a thumb drives a handheld end 122 at the lower end of the movable handle 12 and the handheld end 122 to swing to be close to the fixed handle 11, the upper end of the movable handle 12 can pull the driving rope 4 backwards, so as to drive the driving rod 34 of the clamp head 3 to move backwards, and further close and clamp the clamp head 3. The clamp handle 1 is connected with the clamp rod 2 in a swinging mode, when the clamp handle 1 swings relative to the clamp rod 2, the driving rope 4 can be bent, so that when the surgical robot works, the clamp rod 2 can be turned relative to the clamp handle 1, interference between a handheld doctor of the endoscopic clamp and a mechanical arm of the surgical robot or interference between other surgical doctors is avoided, and smooth operation is guaranteed.

Specifically, referring to fig. 5, the binding clip 3 includes a clip head seat 31, a clip 32, a return spring 33 and a driving rod 34, and the clip 32 and the driving rod 34 are substantially the same as those of the prior art. The forceps head seat 31 is a column structure, can be connected with the end of the forceps rod 2 by screw thread, and is provided with a forceps head seat hole 311, the driving rod 34 is connected with the forceps head seat hole 311 in a sliding manner, one end of the driving rod 34 is hinged with the forceps 32 to drive the forceps 32 to open and close and clamp, the other end is connected with the driving rope 4, the return spring 33 is sleeved outside the driving rod 34, one end of the return spring 33 abuts against a shaft shoulder 341 of the driving rod 34, the other end abuts against a step 312 of the forceps head seat hole 311, when the fixed handle 11 and the movable handle 12 are folded, the movable handle 12 pulls one end of the driving rope 4 backwards (pulled leftwards in fig. 5), so that the driving rod 34 is pulled backwards by the other end of the driving rope 4, at this time, the return spring 33 is compressed to drive the forceps 32 to close and clamp the tissue in the target body, when the fixed handle 11 and the movable handle 12 are loosened, the return spring 33 automatically releases elastic potential energy to drive the fixed handle 11 and the movable handle 12 to open and return, the automation degree is improved.

In this embodiment, referring to fig. 4, the locking device is further included for locking and fixing the forceps handle 1 and the forceps rod 2 after the forceps handle 1 and the forceps rod 2 swing by a predetermined angle, so as to prevent the forceps handle 1 and the forceps rod 2 from continuing to swing relatively, the locking device includes a pivot shaft 13 and a forceps rod seat 14 connected to the fixed handle 11, an upper pressing block 141 and a lower pressing block 142 are disposed at one end of the forceps rod seat 14, a U-shaped through slot 143 is formed between the upper pressing block 141 and the lower pressing block 142, the pivot shaft 13 passes through the U-shaped through slot 143, and the bottom of the pivot shaft 13 is fixedly connected to the lower pressing block 142, so that the pivot shaft 13 remains stationary when the forceps rod 2 swings, the upper end of the pivot shaft 13 is axially slidably connected to the upper pressing block 141, the forceps rod 2 is inserted into the U-shaped through slot 143 and pivotally connected to the pivot shaft 13, the upper end of the pivot shaft 13 is threadedly connected to a handle nut 5, so that the forceps handle 1 and the forceps rod 2 need to be positioned to form a stable structure, it is only necessary to lock the handle nut 5 so that the upper pressing block 141 and the lower pressing block 142 clamp the clamping bar 2, thereby preventing the clamping bar 2 from swinging under the friction force.

In the present embodiment, referring to fig. 6, in order to increase the strength of the position where the clamping bar 2 is pivoted with the pivoting shaft 13, the end of the clamping bar 2 pivoted with the pivoting shaft 13 is provided with a cylindrical end 21, the outer diameter of the cylindrical end 21 is larger than the diameter of the clamping bar 2, and the upper and lower surfaces of the cylindrical end 21 are in surface contact with the upper pressing block 141 and the lower pressing block 142, so that the friction force-bearing area of the end of the clamping bar 2 is increased, and the end can be prevented from being broken.

In this embodiment, in order to achieve complete locking after swinging and avoid looseness after friction locking, the locking device further comprises a locking member 6 sleeved on the pivot shaft 13, the locking member 6 is located between the handle nut 5 and the upper pressing block 141, a plurality of bolts 61 are arranged in the circumferential direction of the lower side of the locking member 6, a plurality of through holes 144 are arranged in the circumferential direction of the upper pressing block 141, positioning holes 22 are arranged on the upper sides of the end portions of the lever 2 pivoted to the pivot shaft 13, the quantity of the bolts 61, the quantity of the through holes 144 and the positioning holes 22 are equal, the size and the diameter of the bolts are basically the same, the bolts 61 are driven downwards by the handle nut 5 in a rotating mode and are simultaneously inserted into the through holes 144 and the positioning holes 22 to position the lever 2, and when the angle between the lever 1 and the lever 2 needs to be adjusted, only the locking member 6 needs to be adjusted again.

The second embodiment:

in this embodiment, as shown in fig. 9, the locking member 6 sleeved on the pivot shaft 13 is further included, the arrangement of the bolt 61, the through hole 144 and the positioning hole 22 is substantially the same as that in the first embodiment, the locking member 6 is slidably connected to the pivot shaft 13, the spring mounting hole 62 is provided in the locking member 6, the extension spring 7 sleeved on the pivot shaft 13 is provided in the spring mounting hole 62, the upper end of the extension spring 7 is connected to the locking member 6, and the lower end of the extension spring is connected to the upper pressing block 141, when the swing needs to be adjusted, the bolt 61 of the locking member 6 can be withdrawn from the positioning hole 22 by pulling the locking member 6 upward, at this time, the swing angle can be adjusted, and after the angle is adjusted, the locking member 6 is released, and the bolt 61 can be automatically inserted into the positioning hole 22 to be locked and positioned under the action of the pulling force, so that the handle 1 and the handle 2 can be quickly locked and positioned.

In the present embodiment, referring to fig. 9-11, the pivot shaft 13 is provided with a pivot shaft passage for the driving rope 4 to pass through, the pivot shaft passage is coaxially arranged with the central hole of the forceps rod 2, the pivot shaft passage comprises a thin straight hole 131 close to the forceps handle 1 and a fan-shaped groove 132 close to the forceps head 3, the open end of the fan-shaped groove 132 with larger inner diameter is arranged towards the forceps head 3, of course, the open angle cannot be too large, otherwise the whole strength of the pivot shaft 13 is weakened. In this embodiment, the sector angle α of the sector groove 132 is 60 ° to 180 °, and when the sector angle α is 180 °, the forceps rod 2 can swing by 90 ° left and right with respect to the forceps handle 1. In order to make the diameter of the thin straight hole 131 substantially the same as the outer diameter of the driving rope 4, the thin straight hole 131 and the fan-shaped groove 132 are communicated with each other at the axis 133 of the pivot shaft 13, so that when the jawset lever 2 swings relative to the jawarms 1, the driving rope 4 will only swing at the swing center of the jawset lever 2, i.e. at the intersection of the axis 133 and the driving rope 4, and the side of the pivot shaft 13 near the bit 3 will not interfere with the driving rope 4 to apply a pulling force to the driving rod 34.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A turnable endoscopic clamp comprises a clamp handle (1), a clamp rod (2) and a clamp head (3), wherein the clamp handle (1) and the clamp head (3) are arranged at two ends of the clamp rod (2), and the turnable endoscopic clamp is characterized in that the clamp handle (1) is connected with the clamp rod (2) in a swinging manner; the clamp handle (1) comprises a fixed handle (11) and a movable handle (12) which are hinged with each other, the clamp handle (1) further comprises a pivoting shaft (13) and a clamp rod seat (14) connected with the fixed handle (11), one end of the clamp rod seat (14) is provided with an upper pressing block (141) and a lower pressing block (142), a U-shaped through groove (143) is formed between the upper pressing block (141) and the lower pressing block (142), the pivoting shaft (13) penetrates through the U-shaped through groove (143), the bottom of the pivoting shaft (13) is connected with the lower pressing block (142), the upper end of the pivoting shaft is connected with the upper pressing block (141), and the clamp rod (2) is inserted into the U-shaped through groove (143) and is pivoted with the pivoting shaft (13); the locking device is used for locking and fixing the clamp handle (1) and the clamp rod (2) after the clamp handle (1) and the clamp rod (2) swing by a preset angle; the locking device comprises a handle nut (5) internally provided with a threaded hole, the bottom of the pivot shaft (13) is fixedly connected with the lower pressing block (142), the upper end of the pivot shaft slides to penetrate through the upper pressing block (141), the handle nut (5) is in threaded connection with the upper end of the pivot shaft (13), and the bottom of the handle nut (5) is abutted against the upper side of the upper pressing block (141); locking device is including the cup jointing dead piece of lock (6) on pin joint axle (13), the dead piece of lock (6) are located between handle nut (5) and last briquetting (141), the circumference of dead piece of lock (6) downside sets up a plurality of bolt (61), the circumference of going up briquetting (141) is provided with a plurality of through-holes (144), claw beam (2) with the upside of the tip of pin joint axle (13) pin joint is provided with locating hole (22), bolt (61) on the dead piece of lock (6) are passed through handle nut (5) rotary drive and insert simultaneously through-hole (144) and locating hole (22).

2. The turnable endoscopic forceps as claimed in claim 1, characterized in that a driving rope (4) is arranged in the forceps rod (2), one end of the driving rope (4) is connected with the driving rod (34) of the forceps head (3), and the other end is connected with the driving end (121) of the movable handle (12).

3. The turnable endoscopic forceps as claimed in claim 2, wherein the forceps head (3) further comprises a forceps head seat (31), a forceps (32) and a return spring (33), a forceps head seat hole (311) is formed in the forceps head seat (31), the driving rod (34) is connected with the forceps head seat hole (311) in a sliding manner, one end of the driving rod (34) is hinged to the forceps (32), the other end of the driving rod is connected with the driving rope (4), the return spring (33) is sleeved outside the driving rod (34), one end of the return spring (33) abuts against a shaft shoulder (341) of the driving rod (34), and the other end of the return spring abuts against a step (312) of the forceps head seat hole (311).

4. The steerable endoscopic forceps according to any of claims 1 to 3, wherein a pivoting shaft passage for the driving cord (4) to pass through is provided in the pivoting shaft (13), and the pivoting shaft passage is provided coaxially with the central hole of the forceps holder (14).

5. Turnable endoscopic forceps according to claim 4, characterized in that the pivoting shaft passage comprises a thin straight hole (131) near the forceps head (3) and a sector groove (132) near the forceps handle (1), the open end of the sector groove (132) being arranged towards the forceps head (3), the thin straight hole (131) and the sector groove (132) communicating at the axis (133) of the pivoting shaft (13).

6. The turnable endoscopic forceps as claimed in any one of claims 1 to 3, wherein the end of the forceps rod (2) pivoted to the pivoting shaft (13) is provided with a cylindrical end (21) having a diameter larger than that of the forceps rod (2), and the upper and lower surfaces of the cylindrical end (21) are in surface contact with the upper pressing block (141) and the lower pressing block (142).