CN113143422B

CN113143422B - Uterus positioning traction device under laparoscope

Info

Publication number: CN113143422B
Application number: CN202110473023.4A
Authority: CN
Inventors: 刘传忠; 张丽滢; 韦业平; 骆静连
Original assignee: Second Affiliated Hospital of Guangxi Medical University
Current assignee: Second Affiliated Hospital of Guangxi Medical University
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2022-10-04
Anticipated expiration: 2041-04-29
Also published as: CN113143422A

Abstract

The invention discloses a womb positioning traction device under a laparoscope, which comprises a pushing device, a U-shaped clamping piece and a positioning adjusting device, wherein the U-shaped clamping piece is detachably arranged at the front end of the pushing device and is pushed to a womb angle through the pushing device to be clamped; the swing adjusting device is used for pulling the U-shaped clamping piece to realize the swing adjustment of the uterus. The innovation point of the invention is to provide a device which is convenient to operate and simple to pull for clinical cervical cancer surgery, and an operator can swing the uterus more conveniently and rapidly to perform the surgery.

Description

Uterus positioning traction device under laparoscope

Technical Field

The invention belongs to the technical field of medical operation tools, and particularly relates to a womb positioning traction device under a laparoscope.

Background

At present, relevant clinical researches show that laparoscopic surgery has the possibility of causing the treatment effect of cervical cancer to decline, and experts and scholars at home and abroad consider that the possibility of tumor compression and metastasis caused by the use of uterine elevator is high. Laparoscopic surgery, as a representative of minimally invasive surgery, has been widely performed worldwide. Among them, laparoscopic surgery for cervical cancer is also being actively conducted. In order to deal with the influence of the uterine elevator, clinical experts at home and abroad adopt various operation modes to replace the uterine elevator, such as uterine suture and traction, but various methods are not perfect and are difficult to unify. Taking the uterine suture method as an example, the clinical suture has poor tension resistance and obvious cutting effect, and the situations of suture breakage, tissue cutting injury and the like often occur in the operation. In the clinic, many patients continue to use the uterine elevator in the operation of cervical cancer. Therefore, it is urgently required to design a device capable of well controlling the position of the uterus laparoscopically.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a womb positioning traction device under a laparoscope.

In order to achieve the purpose, the invention adopts the following technical scheme:

a uterus positioning traction device under a laparoscope comprises a pushing device, a U-shaped clamping piece and a positioning adjusting device, wherein the U-shaped clamping piece is detachably arranged at the front end of the pushing device and is pushed to a uterus corner through the pushing device to be clamped tightly; the positioning adjusting device is used for drawing the U-shaped clamping piece to realize the positioning adjustment of the uterus.

The innovation point of the invention is to provide a device which is convenient to operate and simple to pull for clinical cervical cancer surgery, and an operator can swing the uterus more conveniently and rapidly to perform the surgery.

Furthermore, the pushing device comprises a main rod, a secondary rod and a pushing barrel, wherein the front end of the main rod is provided with a slot for positioning and limiting the U-shaped clamping piece; the secondary rod crosses the center of the main rod and is arranged in the main rod in a sliding manner; the front end of the secondary rod is detachably connected with the U-shaped clamping piece; the front half part of the pushing cylinder is in a horn-shaped split petal shape, the rear half part of the pushing cylinder is a sliding cylinder, and the pushing cylinder is arranged on the main rod in a sliding manner; the pushing device has the effects that the U-shaped clamping pieces can be quickly conveyed to the position of the uterine horn and are operated to clamp the uterine horn tightly, and the U-shaped clamping pieces can be separated from the pushing device by rotating the secondary rod after clamping.

Furthermore, a groove and a convex strip for limiting and preventing rotation are arranged between the main rod and the pushing barrel, so that the main rod and the pushing barrel cannot rotate and deviate in the operation process, and the U-shaped clamping piece can be controlled to open and close under the action of the horn-shaped opening and closing petal shape at the front end of the pushing barrel; the groove is arranged on the main rod, and the convex strip is arranged on the pushing barrel.

Further, the front end of inferior pole be provided with the screw thread, inferior pole passes through the screw thread with U type clamping piece and can dismantle the connection, threaded connection processing is convenient, firm in connection, easy operation.

Furthermore, the U-shaped clamping piece comprises a U-shaped elastic piece, a locking device and a traction hole, the locking device used for realizing connection and locking when two ends of the U-shaped elastic piece are close to each other is arranged at the front end of the U-shaped elastic piece, and the traction hole is arranged on the inner side surface of the bottom of the U-shaped elastic piece.

Furthermore, the locking device comprises a clamping column, a clamping cylinder, a hinge and a limiting block, wherein the clamping column is arranged on one end head of the front end of the U-shaped elastic sheet through the hinge, the clamping cylinder is arranged on the other end head of the front end of the U-shaped elastic sheet through the hinge, barbs are arranged on the clamping column, barb bayonets are arranged on the clamping cylinder, and the use principle of the locking device is the same as that of a binding belt; the hinge is provided with a limiting block used for limiting and temporarily connecting with the U-shaped elastic sheet, the limiting block is connected with the U-shaped elastic sheet in an initial state, and the limiting block can be separated from the U-shaped elastic sheet only under the action of external force (pushed by the front end of the pushing cylinder); the inward turning angles of the clamping column and the clamping cylinder are right angles, and the clamping column and the clamping cylinder can turn over under the action of the pushing cylinder.

Furthermore, the positioning adjusting device comprises a main cylinder, traction hooks, a movable block, a connecting piece and a push rod, wherein 2 traction hooks for hooking the traction hole are hinged at the front end of the main cylinder, and the 2 traction hooks are respectively and independently hinged with the movable block through the connecting piece; the push rod penetrates through the main cylinder and is arranged in the main cylinder in a sliding manner, and the front end of the push rod is connected with the movable block; the size of the opening angle of the 2 traction hooks can be adjusted according to needs so as to be convenient for adjusting and hooking the U-shaped clamping pieces arranged on the uterine horns at the two sides of the uterus.

The rear end of the main cylinder is fixedly provided with a threaded sleeve; the rear half part of the push rod is provided with threads, and the push rod is in threaded connection with the threaded sleeve; the front end of the push rod is rotatably connected with the movable block, the opening angle of the 2 traction hooks can be more conveniently and accurately controlled under the action of the threaded sleeve, and the opening angle can be kept after control.

The invention has the advantages that: the uterus positioning traction device designed by the invention is mainly used for providing a device which can conveniently adjust the uterus positioning when carrying out cervical cancer operation under a laparoscope in an operating room, overcomes the defects of iatrogenic dissemination of cervical tumors and increase of death risk of patients caused by using a uterus lifter, and also overcomes the defect of small swinging amplitude of the uterus lifter through vagina; can also make up the defects of poor tension resistance and strong tissue cutting force of the clinical thread in the uterine suture method; the overall structure can be as small as possible according to actual conditions, and the U-shaped clamping piece can be very conveniently clamped on the uterine horn under the operation of the pushing device, so that a traction supporting point is provided for subsequent traction.

Drawings

FIG. 1 is a perspective view of the pushing device and U-shaped clip combination of the womb positioning traction device under laparoscope of the present invention;

FIG. 2 is an exploded view of a pushing device of the laparoscopic womb positioning traction device of the present invention;

FIG. 3 is a perspective view of a U-shaped clip of the laparoscopic uterine positioning retractor of the present invention;

fig. 4 is a schematic structural diagram of a swing adjusting device in the womb swing traction device under the laparoscope of the invention.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings:

in the description of the present invention, it should be noted that the directions or positional relationships indicated by "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention usually place when used, are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to be referred must have a specific direction, a specific direction configuration and operation, and thus, the present invention is not to be construed as being limited.

As shown in fig. 1-3, a womb position-setting traction device under a laparoscope comprises a pushing device 1, a U-shaped clamping piece 2 and a position-setting adjusting device 3, wherein the U-shaped clamping piece 2 is detachably arranged at the front end of the pushing device 1 and is pushed to the womb angle by the pushing device 1 to be clamped; the swing adjusting device 3 is used for pulling the U-shaped clamping piece 2 to realize the swing adjustment of the uterus. Pusher 1 include mobile jib 11, inferior pole 12 and a propelling movement section of thick bamboo 13, the front end of mobile jib 11 (use left side as preceding) is provided with the fluting 14 that is used for location and spacing U type clamping piece 2, fluting 14 can avoid U type clamping piece 2 to rock in the horizontal direction, breaks away from U type clamping piece when also making things convenient for subsequent operation. The secondary rod 12 transversely crosses the center of the main rod 11 and is arranged in the main rod 11 in a sliding manner, a through hole is formed in the main rod 11, the secondary rod 12 is arranged in the hole in a sliding manner, the secondary rod 12 penetrates from the rear end of the main rod 11 and extends to the front end, and the front end of the secondary rod 12 is positioned in the slot 14. The front end of inferior pole 12 can be dismantled with U type clamping piece 2 and be connected, be provided with the long screw thread of 0.5cm ~ 1.0cm at the front end of inferior pole 12, use with the screw hole cooperation that 2 bottoms of U type clamping piece set up, realize the installation and the dismantlement to U type clamping piece 2 through inferior pole 12 of operation. The front half part of the pushing cylinder 13 is in a horn-shaped split petal shape, the rear half part of the pushing cylinder 13 is a sliding cylinder, and the pushing cylinder 13 is arranged on the main rod 11 in a sliding mode. Three scales are arranged on the main rod 11, and a pull-back scale, an initial scale and a frontmost scale are distributed from back to front. The horn-shaped split flap of the front half part of the pushing cylinder 13 is shaped like a double-split fork, and the U-shaped clamping piece is positioned back and forth and up and down together with the slot 14 (front is viewed). Mobile jib 11 and a propelling movement section of thick bamboo 13 between be provided with and be used for spacing to prevent rotatory recess and sand grip, the recess setting is on mobile jib 11, the sand grip setting is on propelling movement section of thick bamboo 13, the sand grip mainly sets up on the inner wall of the latter half of propelling movement section of thick bamboo 13.

The U-shaped clamping piece 2 comprises a U-shaped elastic piece 21, a locking device and a traction hole 22, wherein the locking device for realizing connection and locking when two end heads of the U-shaped elastic piece 21 are close to each other is arranged at the front end of the U-shaped elastic piece 21, namely when the U-shaped elastic piece 21 is compressed to a certain degree, the two ends of the front part of the elastic piece can be connected together by the locking device, so that the function of clamping a uterine horn is realized. The locking device comprises a clamping column 23, a clamping cylinder 24, a hinge 25 and a limiting block 26, wherein the clamping column 23 is arranged on one end of the front end of the U-shaped elastic sheet 21 through the hinge 25, and the clamping cylinder 24 is arranged on the other end of the front end of the U-shaped elastic sheet 21 through the hinge 25. The clamping column 23 is provided with an agnail, the clamping cylinder 24 is provided with an agnail bayonet, and the principles of the clamping column 23 and the clamping cylinder 24 are the same as the binding belt principle. The hinge 25 is provided with a limiting block 26 for limiting and temporarily connecting with the U-shaped elastic sheet 21, the clamping column 23 and the clamping cylinder 24 are horizontally placed in an initial state (the horizontal position is based on the horizontal placement of the whole device), the U-shaped elastic sheet 21 is connected with the limiting block 26 to a certain extent, and the limiting block 26 is disconnected with the U-shaped elastic sheet 21 only after the pushing cylinder 13 is pushed to abut against the limiting block 26; the connection between the limiting block 26 and the U-shaped spring 21 can be made by glue, so long as the limiting block 26 can be separated from the U-shaped spring 21 under the action of external force and the rotation of the clamping column 23 and the clamping cylinder 24 is not affected. The front ends of the limiting block 26 and the pushing barrel 13 are provided with chamfers, the limiting block 26 can be conveniently clamped into the pushing barrel 13 after being turned, and the height of the limiting block 26 is 2.0-5.0 mm. Card post 23 and card section of thick bamboo 24 flip angle inwards be the right angle, make things convenient for two to link together after being close to, avoided partial to block in post 23 can't insert card section of thick bamboo 24, the front end of card section of thick bamboo 24 sets the horn mouth to simultaneously. The traction hole 22 is arranged on the inner side surface of the bottom of the U-shaped elastic sheet 21, and the traction hole 22 is a connecting hole for providing a positioning adjusting device 3, so that the traction swing uterus can be conveniently hooked.

As shown in fig. 4, the swing position adjusting device 3 includes a main cylinder 31, a towing hook 32, a movable block 33, a connecting piece 34, a push rod 35 and a threaded sleeve 36, wherein the main cylinder 31 and the threaded sleeve 36 are shown in a cross-sectional view. The front end of the main cylinder 31 is hinged with 2 towing hooks 32 for hooking the towing holes 22, and the rear end of the main cylinder 31 is fixedly provided with a threaded sleeve 36. The 2 tow hooks 32 are oppositely disposed with the hooks facing inward. The 2 towing hooks 32 are respectively and independently hinged with the movable block 33 through the connecting piece 34, namely the movable block 33 is positioned between the 2 towing hooks 32, and the opening angle of the 2 towing hooks 32 can be adjusted by moving the movable block 33 after the connecting piece 34 is hinged. The front half part of the push rod 35 is a slide rod, the rear half part is a threaded rod, and threads on the push rod 35 are matched with threads of the threaded sleeve 36. The push rod penetrates through the main cylinder 31 and is arranged in the main cylinder in a sliding mode, the push rod and the main cylinder 31 are coaxial, the front end of the push rod 35 is rotatably connected with the movable block 33, and therefore when the push rod 35 is rotated, the movable block 33 can be adjusted to move, and the opening angle of the 2 traction hooks 32 can be adjusted.

The use principle of the invention is as follows: firstly, 5 holes (respectively an umbilical puncture hole and 2 puncture holes on two sides of the lower abdomen) for the operation under the cervical cancer laparoscope are formed in the body of a patient, then a proper hole is selected to extend into the U-shaped clamping piece 2 and the pushing device 1, and the U-shaped clamping piece 2 is in a semi-closed state (because the hole is smaller than the opened U-shaped clamping piece 2 and cannot extend into the hole) in an initial state, namely the front end of the pushing cylinder 13 is not or is close to be in contact with the limiting block 26; when the U-shaped clamping piece 2 moves to a proper position of the uterine horn, the pushing cylinder 13 is pulled back to open the U-shaped clamping piece 2, then the U-shaped clamping piece 2 is pushed forward to be sleeved on the uterine horn, and then the pushing cylinder 13 is pushed to gradually reduce the opening angle of the U-shaped clamping piece 2 until the clamping column 23 is clamped and connected with the clamping cylinder 24; then the secondary rod 12 is rotated to separate the U-shaped clamping piece 2 from the pushing device 1; then, according to the steps, the U-shaped clamping piece 2 is also arranged on the uterine horn on the other side; finally, the swing adjusting device 3 is stretched into to hook the U-shaped clamping pieces 2 on the uterine horns at both sides of the uterus to adjust the swing of the uterus so as to facilitate the operation.

While particular embodiments of the present invention have been illustrated and described in detail, it should be noted that various changes and modifications could be made to the embodiments described above without departing from the spirit of the invention and the scope of the appended claims.

Claims

1. A uterus positioning traction device under a laparoscope comprises a pushing device (1), a U-shaped clamping piece (2) and a positioning adjusting device (3), wherein the U-shaped clamping piece (2) is detachably arranged at the front end of the pushing device (1) and is pushed to a uterus corner through the pushing device (1) to be clamped tightly; the positioning adjusting device (3) is used for drawing the U-shaped clamping piece (2) to realize the positioning adjustment of the uterus;

the device is characterized in that the pushing device (1) comprises a main rod (11), a secondary rod (12) and a pushing cylinder (13), wherein a slot (14) for positioning and limiting the U-shaped clamping piece (2) is formed in the front end of the main rod (11); the secondary rod (12) transversely penetrates through the center of the main rod (11) and is arranged in the main rod (11) in a sliding manner; the front end of the secondary rod (12) is detachably connected with the U-shaped clamping piece (2); the front half part of the pushing cylinder (13) is in a horn-shaped split valve shape, the rear half part of the pushing cylinder (13) is a sliding cylinder, and the pushing cylinder (13) is arranged on the main rod (11) in a sliding mode.

2. The laparoscopic uterine pendular traction device according to claim 1, wherein a groove and a convex strip for limiting and preventing rotation are arranged between the main rod (11) and the pushing cylinder (13).

3. The laparoscopic uterus positioning traction device according to claim 2, wherein the front end of the secondary rod (12) is provided with a thread, and the secondary rod (12) is detachably connected with the U-shaped clamping piece (2) through the thread.

4. The laparoscope uterus positioning traction device according to any one of claims 1-3, wherein the U-shaped clamping piece (2) comprises a U-shaped elastic piece (21), a locking device and a traction hole (22), the locking device used for realizing connection and locking when two ends of the U-shaped elastic piece (21) are close to each other is arranged at the front end of the U-shaped elastic piece (21), and the traction hole (22) is arranged on the inner side surface of the bottom of the U-shaped elastic piece (21).

5. The laparoscopic uterus positioning traction device according to claim 4, wherein the locking device comprises a clamping column (23), a clamping cylinder (24), a hinge (25) and a limiting block (26), the clamping column (23) is arranged on one end of the front end of the U-shaped elastic sheet (21) through the hinge (25), and the clamping cylinder (24) is arranged on the other end of the front end of the U-shaped elastic sheet (21) through the hinge (25); the hinge (25) is provided with a limiting block (26) for limiting and temporarily connecting with the U-shaped elastic sheet (21); the inward turning angle of the clamping column (23) and the clamping cylinder (24) is a right angle.

6. The laparoscopic uterus positioning traction device according to claim 5, wherein the positioning adjustment device (3) comprises a main cylinder (31), traction hooks (32), a movable block (33), a connecting piece (34) and a push rod (35), wherein 2 traction hooks (32) for hooking the traction hole (22) are hinged at the front end of the main cylinder (31), and the 2 traction hooks (32) are respectively and independently hinged with the movable block (33) through the connecting piece (34); the push rod (35) penetrates through the main cylinder (31) and is arranged in the main cylinder in a sliding mode, and the front end of the push rod (35) is connected with the movable block (33).

7. The laparoscopic uterus positioning traction device according to claim 6, further comprising a threaded sleeve (36), wherein the rear end of the main cylinder (31) is fixedly provided with the threaded sleeve (36); the rear half part of the push rod (35) is provided with threads, and the push rod (35) is in threaded connection with the threaded sleeve (36); the front end of the push rod (35) is rotatably connected with the movable block (33).