CN109009395A - A kind of centrum gripper clamp - Google Patents

Abstract

A vertebral clamping pliers disclosed in the present invention comprises an upper pliers handle, a lower pliers handle and a connecting shaft, and the connecting shaft passes through the mounting holes on the upper pliers handle and the lower pliers handle to hinge them; the upper pliers handle and the lower pliers handle are hinged. The lower pliers handle includes a pliers handle and a pliers head, the pliers head is arranged at one end of the pliers handle, and one side of the upper pliers handle and the lower pliers handle pliers head is provided with a number of hook teeth, the hook teeth are pointed structures, which are arranged in parallel on The sides of the pliers heads corresponding to the upper pliers handle and the lower pliers handle; the occlusal surfaces of the upper pliers handles and the lower pliers handles corresponding to the pliers heads are provided with nesting holes, which are evenly distributed along the main body direction of the pliers head. A vertebral body clamping pliers provided by the present invention is used for horizontally clamping the lamina. Its structure is reasonable and the operation is convenient. Several hook teeth on the head are inserted into the vertebral body to occlude, which effectively improves the reliability of clamping; the handle and the forceps head are not on the same axis, which is beneficial to control the clamping of the vertebral body on one side, and facilitates the smooth operation of the vertebral body .

Description

A kind of vertebral clamp forceps

technical field

The invention relates to the technical field of medical instruments, in particular to a vertebral body clamping forceps.

Background technique

With the rapid development of spinal surgery, the reliability of vertebral body clamping in the operation is very important. At present, ordinary vascular forceps are generally used to clamp and remove the spine. This common vascular forceps has the following disadvantages: the opening of the clamp is small, and the clamp Hold is not firm. In some operations, it is necessary to clamp the vertebral body horizontally, and there is a bony protrusion of the transverse process on the vertebral body. In this case, ordinary vascular forceps cannot complete this clamping action at all, which will affect the smooth operation of the vertebral body .

Therefore, there is an urgent need to design a vertebral body holding forceps to solve the problems in the prior art.

Contents of the invention

The purpose of the present invention is to solve the above-mentioned technical problems. The present invention provides a vertebral body clamping forceps for horizontally clamping the lamina. Its structure is reasonable and the operation is convenient. Located in the nesting hole of the pliers head, several hook teeth on the pliers head are inserted into the inside of the vertebral body to occlude, which effectively improves the reliability of the clamping; the handle and the pliers head are not on the same axis, which is beneficial to control the clamping Hold the vertebral body to facilitate the smooth operation of the vertebral body.

In order to solve the above technical problems, the present invention provides a vertebral body clamping forceps, which specifically includes an upper pliers handle, a lower pliers handle and a connecting shaft, and the connecting shaft passes through the mounting holes on the upper pliers handle and the lower pliers handle to hinge the two ; The upper pliers handle and the lower pliers handle include a pliers handle and a pliers head, and the pliers head is arranged on one end of the pliers handle, and one side of the upper pliers handle and the lower pliers handle pliers head is provided with some hook teeth, and the hook teeth It is a pointed structure, which is arranged in parallel on the side of the pliers head corresponding to the upper pliers handle and the lower pliers handle; the occlusal surface of the upper pliers handle and the lower pliers handle corresponding to the pliers head is provided with a nesting hole, which is along the pliers head. The subject directions are evenly distributed.

In some embodiments, the hook teeth open toward the occlusal direction, and a ball is provided at the end. The setting of the sphere can prevent the hook teeth from being inserted too deeply into the vertebral body and affecting the performance of the vertebral body itself.

In some embodiments, the occlusal direction of the hook teeth is provided with several tooth patterns, which are evenly distributed in the occlusal direction of the hook teeth.

In some embodiments, the tooth patterns on the hook teeth are arranged along the main body direction of the pliers head.

In some embodiments, the pliers handle and pliers head are not on the same axis. In this way, the operator can clamp the vertebral body laterally on one side, so as to provide a wider space for the operation and promote the smooth operation.

In some embodiments, the hook teeth on the upper pincer head and the hook teeth on the lower pincer head are arranged on the same side, so that the pincer head of the upper pincer handle and the pincer pin of the lower pincer handle engage each other, The hook teeth are inserted into the vertebral body for more reliable clamping of the vertebral body.

In some embodiments, the nested hole is provided through the forceps head, and its inner diameter is set to match the diameter of the transverse process on the vertebral body. In this way, the transverse process on the vertebral body is sleeved in the nesting hole, so as to better clamp the vertebral body and improve the reliability of clamping.

Beneficial effects of the present invention:

A vertebral body clamping forceps provided by the present invention has reasonable structure and convenient operation, and has the following technical effects:

(1) The transverse process on the vertebral body is sleeved in the nesting hole of the pliers head, and several hook teeth on the pliers head are inserted into the inside of the vertebral body to occlude, effectively improving the reliability of clamping;

(2) The pliers handle and the pliers head are not on the same axis, which is conducive to controlling the clamping of the vertebral body on one side and facilitating the smooth operation of the vertebral body.

Description of drawings

The above-mentioned advantages of the present invention will become clearer and easier to understand through the detailed description in conjunction with the following drawings, which are only schematic and do not limit the present invention, wherein:

Fig. 1 is the structural representation of a kind of vertebral body holding forceps of the present invention;

Fig. 2 is the structural representation of the pincer head of pincer handle on the present invention;

Fig. 3 is a structural schematic diagram of the hook tooth of the present invention.

In the picture:

1. Upper clamp handle; 2. Lower clamp handle; 3. Connecting shaft; 4. Hook tooth; 5. Nesting hole; 6. Ball; 7. Tooth pattern.

Detailed ways

Fig. 1 to Fig. 3 are related schematic diagrams of a kind of vertebral body clamping forceps according to the present invention. The present application will be described in detail below in conjunction with specific embodiments and accompanying drawings.

The examples described here are specific specific implementations of the present invention, and are used to illustrate the concept of the present invention. They are all explanatory and exemplary, and should not be construed as limiting the implementation of the present invention and the scope of the present invention. In addition to the embodiments described here, those skilled in the art can also adopt other obvious technical solutions based on the claims of the application and the contents disclosed in the description, and these technical solutions include adopting any obvious changes made to the embodiments described here. Replacement and modified technical solutions.

The accompanying drawings in this specification are schematic diagrams, which assist in explaining the concept of the present invention, and schematically represent the shapes of various parts and their interrelationships. Note that the same reference numerals are used to designate the same parts in order to clearly show the structure of each component of the embodiment of the present invention.

A structural schematic diagram of a vertebral body clamping pliers described in the present application, as shown in Figure 1, which specifically includes an upper pliers handle 1, a lower pliers handle 2 and a connecting shaft 3, and the connecting shaft 3 passes through the upper pliers handle 1 and the lower pliers The mounting hole on the handle 2 hinges the two; the upper pliers handle 1 and the lower pliers handle 2 include a pliers handle and a pliers head, and the pliers head is arranged on one end of the pliers handle, and the upper pliers handle 1 and the lower pliers handle 2 clamp One side of the head is provided with a plurality of hook teeth 4, the hook teeth 4 are pointed structures, which are arranged in parallel on the side of the pliers head corresponding to the upper pliers handle 1 and the lower pliers handle 2; the upper pliers handle 1 and the lower pliers handle Nesting holes 5 are provided on the occlusal surface of the handle 2 corresponding to the pliers head, which are evenly distributed along the main body direction of the pliers head.

In the present application, the hook teeth 4 open toward the occlusal direction, and a ball 6 is arranged at the end thereof, as shown in FIG. 2 . The setting of the sphere can prevent the hook teeth from being inserted too deep into the vertebral body and affect the performance of the vertebral body itself;

In the embodiment shown in Fig. 1, the hook teeth 4 on the pliers head of the upper pliers handle 1 and the hook teeth 4 on the pliers head of the lower pliers handle 2 are set on the same side; On the head, its inner diameter matches the diameter of the transverse process on the vertebral body, and the inner diameter of the nesting hole 5 is slightly larger than the diameter of the transverse process on the vertebral body. When the vertebral body clamping pliers described in this application are used to clamp the vertebral body, the transverse process on the vertebral body just fits inside the nesting hole 5, and the end of the hook tooth 4 located on the side of the forceps head is inserted into the vertebral body , in order to clamp the vertebral body more firmly.

In some embodiments, the occlusal direction of the hook teeth 4 is provided with several tooth patterns 7, which are evenly distributed in the occlusal direction of the hook teeth 4, as shown in Figure 3; the tooth patterns 7 on the hook teeth 4 are along the The body orientation setting for the head. The pliers head of the upper pliers handle 1 and the pliers head of the lower pliers handle 2 are engaged with each other, the hook teeth 4 are inserted into the vertebral body, and the setting of the transverse tooth pattern 7 can increase the friction between the hook teeth and the vertebral body, effectively preventing the clamping process The sliding of the middle vertebra increases the reliability of clamping.

In the present application, the pliers handle and the pliers head are not on the same axis, so that the operator can clamp the vertebral body laterally on one side, so as to provide a wider space for the operation and promote the smooth operation.

The vertebral body clamping forceps described in this application are used to laterally clamp the lamina, especially the bony protrusion with the transverse process on the vertebral body. Before use, it is necessary to carefully separate the muscles and ligaments attached to the transverse process, and Pull it to the sides to expose the transverse processes on both sides of the lamina and facilitate the clamping operation.

Compared with the prior art, the present invention provides a vertebral body clamping forceps with reasonable structure and convenient operation. When occlusal clamping, the transverse process on the vertebral body is set in the nesting hole of the forceps head, and the forceps Several hook teeth on the head are inserted into the vertebral body to occlude, which effectively improves the reliability of clamping; the handle and the forceps head are not on the same axis, which is beneficial to control the clamping of the vertebral body on one side, and facilitates the smooth operation of the vertebral body .

The present invention is not limited to the above-mentioned embodiment, and anyone can draw other various forms of products under the enlightenment of the present invention, but no matter make any changes in its shape or structure, all those with the same or similar features as the present application The technical solutions all fall within the protection scope of the present invention.

Claims (7)

1. A vertebral body clamping pliers, comprising an upper pliers handle (1), a lower pliers handle (2) and a connecting shaft (3), and the connecting shaft (3) passes through the upper pliers handle (1) and the lower pliers handle (2) The mounting hole on the ) hinges the two; it is characterized in that the upper pliers handle (1) and the lower pliers handle (2) include a pliers handle and a pliers head, and the pliers head is arranged at one end of the pliers handle, and the upper pliers handle (1) and the lower pliers handle (2) are provided with several hook teeth (4) on one side of the pliers head. The hook teeth (4) are pointed structures, which are arranged in parallel on the upper pliers handle (1) and the lower pliers handle (2) The side of the corresponding pliers head; the occlusal surface of the upper pliers handle (1) and the lower pliers handle (2) corresponding to the pliers head is provided with nested holes (5), which are evenly distributed along the main body direction of the pliers head . 2. A vertebral body clamping forceps according to claim 1, characterized in that, the hook teeth (4) are opened toward the occlusal direction, and a ball (6) is arranged at the end thereof. 3. A kind of vertebral body clamping forceps according to claim 2, characterized in that, the occlusal direction of the hook teeth (4) is provided with several tooth patterns (7), which are evenly distributed on the hook teeth (4). Bite direction. 4 . The vertebral body clamping forceps according to claim 3 , characterized in that, the serrations ( 7 ) on the hook teeth ( 4 ) are arranged along the main body direction of the pliers head. 5 . 5 . The vertebral body clamping forceps according to claim 1 , wherein the pliers handle and the pliers head are not on the same axis. 6 . 6. A kind of vertebral body holding forceps according to claim 1, characterized in that, the hook teeth (4) on the pincer head of the upper pincer handle (1) and the hooks on the pincer head of the lower pincer handle (2) Teeth (4) are provided on the same side. 7 . The vertebral body clamping forceps according to claim 1 , characterized in that, the nesting hole ( 5 ) is provided through the forceps head, and its inner diameter matches the diameter of the transverse process on the vertebral body. 7 .