CN218870388U

CN218870388U - Detachable vertebral plate rongeur

Info

Publication number: CN218870388U
Application number: CN202223538434.6U
Authority: CN
Inventors: 徐荣光; 李晓静
Original assignee: Jiangsu Huigu Medical Devices Co ltd
Current assignee: Jiangsu Huigu Medical Devices Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-04-18
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a removable vertebral lamina rongeur belongs to rongeur technical field, including last tong arm and lower tong arm, it includes the arm body two of being connected with rongeur handle end and can dismantle the connection with this arm body one to go up the tong arm, wherein, arm body two is seted up flutedly towards a side of tong arm down, the inside of recess is provided with the cushion, and a side of this cushion clamp arm down compresses tightly on lower tong arm. The utility model discloses in, through set up the cushion in the recess of tong arm side under the arm body two orientation, avoid organizing the liquid to extend to the handle end of rongeur always, then through going up the tong arm split and being divided into the arm body one and the arm body two parts of dismantling the connection, the position of arm body two is injectd through adjustable position's stop disk simultaneously, put aside the back when the stop disk from the plane, just can separate its and lower tong arm through the mode of rotating arm body two, then can dismantle arm body two, be favorable to realizing killing the comprehensive of rongeur like this.

Description

Detachable vertebral plate rongeur

Technical Field

The utility model belongs to the technical field of rongeur, especially, relate to a removable vertebral lamina rongeur.

Background

A vertebral plate rongeur is a surgical instrument used for biting dead bones or trimming bone stumps in spinal surgeries. The working principle is that the upper clamp arm is pushed to slide on the lower clamp arm, so that the end part of the upper clamp arm gradually moves to a bending part formed at one end of the lower clamp arm, and dead bones are clamped or bone stumps are trimmed.

In the process of biting bones of the existing vertebral plate rongeur, tissue fluid and the like around the bones can infiltrate into gaps between an upper tong arm and a lower tong arm, and along with the sliding of the upper tong arm on the lower tong arm, the tissue fluid can gradually infiltrate towards the handle direction of the vertebral plate rongeur, so that the gaps between the upper tong arm and the lower tong arm are gradually polluted by the tissue fluid and the like, and therefore the gaps between the upper tong arm and the lower tong arm need to be cleaned.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an: in order to solve the problems in the prior art, a detachable vertebral plate rongeur is provided.

In order to realize the purpose, the utility model adopts the following technical scheme:

a detachable vertebral plate rongeur comprises an upper tong arm and a lower tong arm, wherein the upper tong arm comprises a first arm body connected with the handle end of the rongeur and a second arm body detachably connected with the first arm body, a groove is formed in one side surface, facing the lower tong arm, of the second arm body, a soft pad is arranged inside the groove, and one side surface, facing the lower tong arm, of the soft pad is pressed on the lower tong arm;

the clamp arm comprises a first arm body and a second arm body, wherein a jacket is arranged on the second arm body, one side face, far away from the lower clamp arm, of the jacket is a plane, one end, close to the second arm body, of the first arm body is rotatably connected with a connecting shaft, one end of the connecting shaft is fixedly connected with the second arm body, a first limiting block is arranged on the front side face of the lower clamp arm, a first stopping round block which moves along the radial direction of the second arm body is arranged on the first limiting block, and the first stopping round block is in sliding connection with the plane.

Preferably, the other end of the connecting shaft is fixed with a pin shaft which is axially parallel to the moving direction of the stopping round block, and the pin shaft is inserted into a shaft hole formed in the first arm body.

Preferably, one end of the pin shaft, which is far away from the connecting shaft, is provided with a guide head, and the guide head is of a hemispherical structure.

Preferably, the upper edge of the first limiting block along the radial direction of the second arm body is provided with a screw hole and an accommodating groove which are communicated with each other, the accommodating groove is located on one side surface of the first limiting block close to the stop circular block and is used for accommodating the stop circular block, a stud is in threaded connection with the inside of the screw hole, and the stud and the stop circular block are concentric and fixedly connected.

Preferably, a shifting block is fixed at one end of the stud, which is far away from the stopping round block.

Preferably, a second limiting block is installed on the rear side face of the lower clamp arm, and the second arm body is located between the first limiting block and the second limiting block.

Preferably, gaps II are formed between the first limiting block and the second arm body and between the second limiting block and the second arm body, spherical protrusions are arranged on the front side and the rear side of the second arm body, and the spherical protrusions are in point contact with the first limiting block and the second limiting block.

Preferably, the locating slot has been seted up to the interior roof of recess, the top of cushion is provided with the location arch, and this location arch is pegged graft in the inside of locating slot.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through set up the cushion in the recess of tong arm side under the arm body two orientation, and make this cushion compress tightly on tong arm down, just so can block the tissue liquid between arm body two and the tong arm down, avoid tissue liquid to extend to the handle end of rongeur always, then through the arm body one and arm body two parts that will go up the tong arm split and be the detachable connection, the position of arm body two is injectd through adjustable position's stop disk simultaneously, put aside the back when the stop disk from the plane, just can be through the mode of rotating arm body two with its tong arm separation down, then can dismantle arm body two, be favorable to realizing the comprehensive killing of rongeur like this.

2. The utility model discloses in, the bellied surface of sphere is smooth, consequently both can inject the position of arm body two, makes it align with lower tong arm, avoids appearing the dislocation condition between arm body two and the lower tong arm, can reduce the frictional force between arm body two and stopper one and the stopper two again, and the convenience is followed arm body two and is rotated between stopper one and the stopper two and go out.

Drawings

Fig. 1 is a schematic view of the overall structure of a detachable vertebral plate rongeur according to the present invention;

FIG. 2 is a schematic top view of a first removable vertebral plate rongeur stopper according to the present invention;

FIG. 3 is a schematic top view of a partial cross-sectional structure of a detachable vertebral plate rongeur arm I according to the present invention;

fig. 4 is a schematic side view of the sectional structure of the detachable vertebral plate rongeur cushion according to the present invention.

Illustration of the drawings: 1. an upper tong arm; 11. a first arm body; 111. a shaft hole; 12. a second arm body; 13. a connecting shaft; 131. a pin shaft; 132. guiding the head; 14. a first gap; 15. a jacket; 151. a plane; 16. a first limiting block; 161. a screw; 162. a stud; 163. a screw hole; 164. stopping the round block; 165. a receiving groove; 166. shifting blocks; 167. a second gap; 168. spherical surface is convex; 17. a second limiting block; 2. a lower jawarm; 3. a soft cushion; 31. a groove; 32. positioning the projection; 33. and (7) positioning a groove.

Detailed Description

The present invention will be described with reference to the following embodiments.

As shown in fig. 1 to 4, the detachable vertebral plate rongeur of the present embodiment comprises an upper clamp arm 1 and a lower clamp arm 2, wherein the upper clamp arm 1 comprises a first arm body 11 connected with a handle end of the rongeur (the handle end of the rongeur is not shown in the present embodiment) and a second arm body 12 detachably connected with the first arm body 11, a groove 31 is formed in one side surface of the second arm body 12 facing the lower clamp arm 2, and a cushion 3 is arranged inside the groove 31, in the present embodiment, the cushion 3 may be made of rubber or silica gel, and one side surface of the cushion 3 facing the lower clamp arm 2 is pressed on the lower clamp arm 2, so that tissue fluid between the second arm body 12 and the lower clamp arm 2 can be prevented from extending to the handle end of the rongeur along a gap between the second arm body 12 and the lower clamp arm 2; be provided with overcoat 15 on the second arm body 12, overcoat 15 is the same with the material of the second arm body 12 to set up with two 12 integrated into one piece of arm bodies, a side that this overcoat 15 kept away from lower tong arm 2 is plane 151, and the effect of this plane 151 is: in the process that the second arm body 12 slides relative to the lower clamp arm 2, the round block 164 can stably slide on the plane 151, one end of the first arm body 11, which is close to the second arm body 12, is rotatably connected with the connecting shaft 13, one end of the connecting shaft 13 is fixedly connected with the second arm body 12, the front side surface of the lower clamp arm 2 is provided with the first limiting block 16, the first limiting block 16 is provided with the stopping round block 164 which moves along the radial direction of the second arm body 12, the stopping round block 164 is slidably connected with the plane 151, a gap 14 is formed between the first arm body 11 and the second arm body 12, and the gap 14 at least enables the second arm body 12 to rotate, namely the end surfaces of the first arm body 11 and the second arm body 12 are not contacted, so that the second arm body 12 can be conveniently rotated by ninety degrees when the second arm body 12 is detached.

In the above scheme, the cushion 3 is arranged in the groove 31 of the second arm 12 facing the side face of the lower forceps arm 2, and the cushion 3 is pressed on the lower forceps arm 2, so that the tissue fluid between the second arm 12 and the lower forceps arm 2 can be blocked, the tissue fluid is prevented from extending to the handle end of the rongeur, then the upper forceps arm 1 is split into the first arm 11 and the second arm 12 which are detachably connected, meanwhile, the position of the second arm 12 is limited by the stop round block 164 with the adjustable position, when the stop round block 164 is moved away from the plane 151, the stop round block can be separated from the lower forceps arm 2 by rotating the second arm 12, and then the second arm 12 can be detached, so that the comprehensive killing of the rongeur is facilitated.

As shown in fig. 3, a pin shaft 131 axially parallel to the moving direction of the stop round block 164 is fixed at the other end of the connecting shaft 13, and the pin shaft 131 is inserted into a shaft hole 111 formed in the first arm 11 and can rotate inside the shaft hole 111; in order to facilitate the insertion of the pin 131 into the shaft hole 111, a guide head 132 is disposed at an end of the pin 131 away from the connecting shaft 13, and the guide head 132 has a hemispherical structure.

As shown in fig. 2, the first limiting block 16 is provided with a screw hole 163 and an accommodating groove 165 which are communicated with each other along the radial direction of the second arm 12, the accommodating groove 165 is located on one side surface of the first limiting block 16 close to the stop circular block 164 and is used for accommodating the stop circular block 164, a stud 162 is connected to the screw hole 163 through a thread, and the stud 162 and the stop circular block 164 are concentric and fixedly connected; a shifting block 166 is fixed at one end of the stud 162 far from the stopping round block 164, so that a user can conveniently use the shifting block 166 to rotate the stud 162, when the second arm body 12 needs to be disassembled actually, the shifting block 166 is directly used for driving the stud 162 to rotate in the screw hole 163, the position of the stopping round block 164 can be gradually moved, and finally the stopping round block 164 is stored in the storage groove 165, at this time, the stopping round block 164 cannot shield the second arm body 12, then the second arm body 12 can be rotated by using the pin shaft 131 until the second arm body 12 rotates approximately ninety degrees, at this time, the first limiting block 16 cannot shield the second arm body 12, then the pin shaft 131 can be pulled out from the inside of the shaft hole 111, and the disassembly of the second arm body 12 is completed.

As shown in fig. 1 and 2, a second limit block 17 is installed on the rear side surface of the lower clamp arm 2, the second arm body 12 is located between the first limit block 16 and the second limit block 17, and both the first limit block 16 and the second limit block 17 are installed on the lower clamp arm 2 through screws 161.

As shown in fig. 2, a gap two 167 is formed between the first limiting block 16 and the second arm body 12 and between the second limiting block 17 and the second arm body 12, spherical protrusions 168 are arranged on the front side and the rear side of the second arm body 12, the spherical protrusions 168 are in point contact with the first limiting block 16 and the second limiting block 17, and the surface of the spherical protrusions 168 is smooth, so that the position of the second arm body 12 can be limited to be aligned with the lower clamp arm 2, the dislocation between the second arm body 12 and the lower clamp arm 2 is avoided, the friction force between the second arm body 12 and the first limiting block 16 and the second limiting block 17 can be reduced, and the second arm body 12 can be rotated out from the first limiting block 16 to the second limiting block 17 conveniently.

As shown in fig. 4, a positioning groove 33 is formed in the inner top wall of the groove 31, a positioning protrusion 32 is disposed at the top end of the cushion 3, and the positioning protrusion 32 is inserted into the positioning groove 33, so that the position of the cushion 3 can be limited and prevented from falling off.

The using method of the embodiment comprises the following steps: in actual use, the handle end of the rongeur is directly utilized to drive the arm body I11 to move relative to the lower tong arm 2, at the moment, the arm body I11 is connected with the arm body II 12 through the connecting shaft 13 and the pin shaft 131, so the arm body II 12 also moves relative to the lower tong arm 2, one end, away from the arm body I11, of the arm body II 12 is gradually close to the bone biting end of the lower tong arm 2, at the moment, the bone, between one end, away from the arm body I11, of the arm body II 12 and the bone biting end of the lower tong arm 2, is gradually bitten, and in the process, the arm body II 12 is limited between the limiting block I16 and the limiting block II 17, so the arm body II 12 can only move along the axial direction of the arm body II and cannot move along the radial direction of the arm body II 12; when the second arm 12 needs to be disassembled actually, the shifting block 166 is directly used for driving the stud 162 to rotate in the screw hole 163, so that the position of the stop round block 164 can be gradually moved along the axial direction of the stud 162, and finally the stop round block 164 is accommodated in the accommodating groove 165, at this time, the stop round block 164 cannot shield the second arm 12, then the second arm 12 can be rotated by using the pin shaft 131 until the second arm 12 rotates by approximately ninety degrees, at this time, the first limit block 16 cannot shield the second arm 12, and then the pin shaft 131 can be pulled out from the inside of the shaft hole 111, that is, the disassembly of the second arm 12 is completed.

Claims

1. A detachable vertebral plate rongeur comprises an upper tong arm (1) and a lower tong arm (2), and is characterized in that the upper tong arm (1) comprises a first arm body (11) connected with the handle end of the rongeur and a second arm body (12) detachably connected with the first arm body (11), wherein a groove (31) is formed in one side surface, facing the lower tong arm (2), of the second arm body (12), a cushion (3) is arranged inside the groove (31), and one side surface, facing the lower tong arm (2), of the cushion (3) is pressed on the lower tong arm (2);

the clamp arm comprises a first arm body (12), a second arm body (12) and a connecting shaft (13), wherein a jacket (15) is arranged on the second arm body (12), one side face, far away from the lower clamp arm (2), of the jacket (15) is a plane (151), one end, close to the second arm body (12), of the first arm body (11) is rotatably connected with the connecting shaft (13), one end of the connecting shaft (13) is fixedly connected with the second arm body (12), a first limiting block (16) is installed on the front side face of the lower clamp arm (2), a first limiting block (16) is arranged on the first limiting block (16) and moves along the second arm body (12) in the radial direction, and the first limiting block (164) is in sliding connection with the plane (151).

2. A detachable vertebral plate rongeur according to claim 1, wherein a pin (131) axially parallel to the moving direction of the stop round block (164) is fixed at the other end of the connecting shaft (13), and the pin (131) is inserted into a shaft hole (111) formed in the first arm body (11).

3. A detachable laminar rongeur according to claim 2, in which the end of the pin (131) remote from the connecting shaft (13) is provided with a guide head (132), the guide head (132) being of hemispherical configuration.

4. The detachable vertebral plate rongeur of claim 1, wherein the first limiting block (16) is provided with a screw hole (163) and an accommodating groove (165) which are communicated with each other along the radial direction of the second arm body (12), the accommodating groove (165) is positioned on one side surface of the first limiting block (16) close to the stopping circular block (164) and is used for accommodating the stopping circular block (164), a stud (162) is connected to the screw hole (163) through a thread, and the stud (162) is concentric with and fixedly connected to the stopping circular block (164).

5. A removable laminar rongeur according to claim 4 in which a driver (166) is secured to the end of the stud (162) remote from the stop circular block (164).

6. A detachable vertebral plate rongeur according to claim 1, wherein a second limit block (17) is installed on the rear side surface of the lower forceps arm (2), and the second arm body (12) is positioned between the first limit block (16) and the second limit block (17).

7. The detachable vertebral plate rongeur according to claim 6, wherein a second gap (167) is formed between the first limit block (16) and the second arm body (12) and between the second limit block (17) and the second arm body (12), spherical protrusions (168) are arranged on the front side and the rear side of the second arm body (12), and the spherical protrusions (168) are in point contact with the first limit block (16) and the second limit block (17).

8. A removable vertebral plate rongeur according to claim 1, wherein the inner top wall of the groove (31) is provided with a positioning groove (33), the top end of the soft cushion (3) is provided with a positioning bulge (32), and the positioning bulge (32) is inserted into the positioning groove (33).