CN216167797U

CN216167797U - Titanium net scissors

Info

Publication number: CN216167797U
Application number: CN202122387074.3U
Authority: CN
Inventors: 陈继光; 魏会民; 段树令
Original assignee: Anyang Shengjie Technology Co ltd
Current assignee: Anyang Shengjie Technology Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-04-05
Anticipated expiration: 2031-09-30

Abstract

A titanium mesh shear comprises a left handle, a right handle, a left connecting rod, a right connecting rod, a left shear port, a right shear port, an upper fixing plate and a lower fixing plate, wherein a left fluted disc and a right fluted disc are respectively arranged on the inner sides of the front ends of the left handle and the right handle, the left fluted disc and the right fluted disc are meshed with each other, the inner parts of the left fluted disc, the right fluted disc, the left shear port and the right shear port are clamped by the upper fixing plate and the lower fixing plate in the middle, and the centers of the left fluted disc and the right fluted disc are rotatably connected with the upper fixing plate and the lower fixing plate through pins; the head parts of the left handle and the right handle are respectively provided with an open slot, a corresponding connecting rod is rotatably connected in each open slot by a pin, the other end of each connecting rod is rotatably connected with the outer side of a corresponding shear port, the inner side of each shear port is rotatably connected with the pin arranged between the upper fixing plate and the lower fixing plate, the blade parts of the left shear port and the right shear port are oppositely arranged, and part of the blade part extends out from the space between the upper fixing plate and the lower fixing plate. The titanium net scissors are light and labor-saving, and convenient for operation.

Description

Titanium net scissors

Technical Field

The utility model particularly relates to a titanium net shear, and belongs to the technical field of medical instruments.

Background

The titanium mesh has better strength, ductility and plasticity, good histocompatibility, and is widely applied to clinical surgery without influencing postoperative radiotherapy. For example, titanium mesh tubes (titanium cages) are one of the commonly used implants in spinal internal fixation surgery, the required length of the titanium mesh tubes is different due to different individual differences of patients, but the length of the titanium mesh tubes produced by enterprises is fixed, and the titanium mesh tubes need to be cut to a proper length during surgery or the titanium mesh tubes need to be trimmed appropriately. The traditional shearing mode is to shear or cut off the unnecessary part of titanium net pipe through the scissors, but adopt the scissors to cut off the titanium net and cause the edge of titanium net to warp easily, the thickness of titanium net is about 1mm simultaneously, the material is harder, and the mesh eye of titanium net is less (generally at 2-5 mm), the cutting part of usual shearing tool hardly gets into the mesh, consequently cut very trouble and very neat that is difficult to prune, the process of pruning needs the very long time of spending, this can increase operation time, influence the result of use. Therefore, a labor-saving and convenient titanium mesh shearing tool is needed.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides a titanium mesh shear, and aims to solve the problems that the existing titanium mesh shear tool is troublesome and labor-consuming, and the blade part cannot effectively extend into a titanium mesh hole.

The technical scheme of the utility model is as follows: a titanium mesh scissors comprises a left handle, a right handle, a left connecting rod, a right connecting rod, a left shearing port, a right shearing port, an upper fixing plate and a lower fixing plate, wherein a left fluted disc and a right fluted disc are respectively arranged on the inner sides of the front ends of the left handle and the right handle, the left fluted disc and the right fluted disc are meshed with each other, the upper fixing plate and the lower fixing plate are fixedly arranged in parallel at intervals, the inner parts of the left fluted disc, the right fluted disc, the left shearing port and the right shearing port are clamped by the upper fixing plate and the lower fixing plate in the middle, and the centers of the left fluted disc and the right fluted disc are rotatably connected with the upper fixing plate and the lower fixing plate through pins; the head parts of the left handle and the right handle are respectively provided with an open slot, a corresponding connecting rod is rotatably connected in each open slot by a pin, the other end of each connecting rod is rotatably connected with the outer side of a corresponding shear port, the inner side of each shear port is rotatably connected with the pin arranged between the upper fixing plate and the lower fixing plate, the blade parts of the left shear port and the right shear port are oppositely arranged, and part of the blade part extends out from the space between the upper fixing plate and the lower fixing plate.

Furthermore, the outer side surface, the upper side surface and the lower side surface of the edge part are both provided with concave arc-shaped surfaces.

Further, the outer head of the blade part is blunt.

Furthermore, a spring is arranged between the left handle and the right handle and is positioned below the fluted disc.

Furthermore, the lower parts of the left handle and the right handle are both provided with anti-skid parts.

Has the advantages that: the cutting opening of the titanium mesh scissors is specially designed, and the blade part of the cutting opening can be deep into the hole of the titanium mesh, so that the operation is convenient; the left handle and the right handle are squeezed to be folded inwards, the connecting rod is utilized to drive the left cut and the right cut to rotate, the cutting edges are matched with each other, the hard titanium net can be easily cut, the opening is neat and free of burrs, the operation is convenient and labor-saving, and the operation efficiency is improved.

Drawings

Fig. 1 is a schematic perspective view of a titanium mesh scissors.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a schematic structural view of the right handle.

Fig. 4 is a side view of fig. 3.

Fig. 5 is a front view of the right scissor.

Fig. 6 is a left side view of the right scissor.

Fig. 7 is a top view of the right scissor opening.

The labels in the figure are: 1 left handle, 2 left connecting rods, 3 left scissor mouths, 4 right handles, 5 right connecting rods, 6 right scissor mouths, 7 springs, 8 upper fixing plates, 41 anti-skidding grooves, 42 fluted disc, 43 open grooves, 44 spring mounting holes, 61 blade parts, 62 upper arc surfaces, 63 blade tips, 64 left arc surfaces, 65 right arc surfaces, 81a first pins, 81b second pins, 82a third pins, 82b fourth pins, 83a fifth pins and 83b sixth pins.

Detailed Description

The utility model will be described more fully with reference to the accompanying drawings.

A pair of titanium mesh scissors is shown in figures 1-2 and comprises a left handle 1, a right handle 4, a left connecting rod 2, a right connecting rod 5, a left shear mouth 3, a right shear mouth 6, an upper fixing plate 8 and a lower fixing plate, wherein the upper fixing plate and the lower fixing plate are fixedly arranged in parallel at intervals, and the left handle, the right handle, the left shear mouth and the right shear mouth are clamped in the middle by the upper fixing plate and the lower fixing plate and are connected through a first pin 81a, a second pin 81b, a third pin 82a, a fourth pin 82b, a fifth pin 83a and a sixth pin 83 b. The left handle 1 is connected with the left shear port 3 through the left connecting rod 2, and the right handle 4 is connected with the right shear port 6 through the right connecting rod 5.

The left handle 1 and the right handle 4 are basically the same in structure, and the right handle is taken as an example for explanation, and the structure thereof is shown in fig. 3-4. The lower part of the right handle is provided with an anti-slip part, and the specific structure of the anti-slip part is a plurality of anti-slip grooves 41, so that the anti-slip part is convenient for being held by hands, and the friction force is increased. And a right fluted disc 42 is arranged on the inner side of the front end of the right handle, the center of the right fluted disc is penetrated by a second pin 81b, the right fluted disc can be rotatably connected relative to the upper fixing plate and the lower fixing plate, and simultaneously the right fluted disc is meshed with a left fluted disc arranged on the left handle. Meanwhile, a spring hole 44 is formed below the right fluted disc, a spring 7 is installed in the spring hole 44, and the spring is arranged between the left handle and the right handle, so that the left handle and the right handle can be conveniently opened.

The head of the right handle is also provided with an open slot 43, a right connecting rod 5 (see figure 2) is rotatably connected in the open slot 43 by a pin, the other end of the connecting rod 5 is rotatably connected with the outer side of the right shear mouth 6, the inner side of the right shear mouth 6 is rotatably connected with a sixth pin 83b arranged between the upper fixing plate and the lower fixing plate, the inner parts of the left fluted disc, the right fluted disc, the left shear mouth and the right shear mouth are clamped by the upper fixing plate and the lower fixing plate, the blade parts of the left shear mouth and the right shear mouth are oppositely arranged, and one part of the blade part extends out from the space between the upper fixing plate and the lower fixing plate.

The left and right incisions have the same structure and are symmetrically arranged, and the right incision is taken as an example for explanation, and the structure of the right incision is shown in fig. 5-7. As can be seen in fig. 5, the outer head of its cutting edge 61 is blunted to an obtuse angle 63 to prevent injury to a person; the outer side surface of the blade part is provided with an inner concave outer arc surface 62, as shown in fig. 6, the left side surface of the blade part is provided with an inner concave left arc surface 64 and an inner concave right arc surface 65, the upper arc surface is arranged to form an avoiding space, the blade part can conveniently stretch into holes of a titanium net for shearing operation, and the left and right arc surfaces are beneficial to cutting the blade part to form a sharp knife edge. The left shear mouth and the right shear mouth are made of high-strength low-carbon structural steel Q420B, and have excellent hardness and strength after being subjected to a special heat treatment process, so that the requirement of shearing a titanium mesh is completely met.

The principle and the using method of the titanium mesh scissors provided by the utility model are as follows: when the left and right handles are respectively rotated outwards around the first pin 81a and the second pin 81b, the left and right fluted discs are mutually meshed and supported, the head parts of the left and right handles drive the left and right connecting rods to move inwards, the left and right connecting rods pull the left and right shearing mouths to respectively move outwards around the fifth pin 83a and the sixth pin 83b, so that the cutting edges are opened and the opening angle is controlled, the head parts of the cutting edges are respectively inserted into adjacent meshes of the titanium net, the left and right handles are pressed inwards to be closed, the left and right shearing mouths are driven to rotate inwards by the connecting rods, the cutting edges are mutually matched, the hard titanium net can be easily sheared, the opening is neat and free of burrs, and the handles can be automatically opened under the action of restoring force of the springs after shearing. Therefore, the titanium mesh scissors are light and labor-saving to use, are convenient to use for the operation, and can obviously improve the operation efficiency.

Claims

1. A titanium net shear is characterized in that: the left connecting rod and the right connecting rod are meshed with each other, the upper fixing plate and the lower fixing plate are fixedly arranged in parallel at intervals, the inner parts of the left fluted disc, the right fluted disc, the left shear mouth and the right shear mouth are clamped between the upper fixing plate and the lower fixing plate, and the centers of the left fluted disc and the right fluted disc are rotationally connected with the upper fixing plate and the lower fixing plate through pins; the head parts of the left handle and the right handle are respectively provided with an open slot, a corresponding connecting rod is rotatably connected in each open slot by a pin, the other end of each connecting rod is rotatably connected with the outer side of a corresponding shear port, the inner side of each shear port is rotatably connected with the pin arranged between the upper fixing plate and the lower fixing plate, the blade parts of the left shear port and the right shear port are oppositely arranged, and part of the blade part extends out from the space between the upper fixing plate and the lower fixing plate.

2. The titanium mesh shears according to claim 1, wherein: the outer side surface, the upper side surface and the lower side surface of the edge part are both provided with concave arc-shaped surfaces.

3. The titanium mesh shears according to claim 1, wherein: the outer head of the blade part is an obtuse angle.

4. The titanium mesh shears according to claim 1, wherein: and a spring is also arranged between the left handle and the right handle and is positioned below the fluted disc.

5. The titanium mesh shears according to claim 1, wherein: and the lower parts of the left handle and the right handle are both provided with anti-skidding parts.