CN217611271U

CN217611271U - Jaw face steel sheet pincers of bending

Info

Publication number: CN217611271U
Application number: CN202220833245.2U
Authority: CN
Inventors: 魏会民; 靳力; 杨万超
Original assignee: Anyang Shengjie Technology Co ltd
Current assignee: Anyang Shengjie Technology Co ltd
Priority date: 2022-04-12
Filing date: 2022-04-12
Publication date: 2022-10-21
Anticipated expiration: 2032-04-12

Abstract

The utility model discloses a jaw face steel sheet bending pliers, including left handle and right handle, the front end of left handle and right handle is articulated together through the pin the front end of left handle sets up first jaw and first cotter hole, is provided with first boss at the front end side of left handle the front end of right handle is provided with the second jaw portion, and the second jaw portion includes U-shaped open slot and lies in two second jaws that U-shaped open slot front end parallel interval set up, is provided with second boss and third boss at one side parallel interval of U-shaped open slot, is provided with the second cotter hole in the center of second boss, and the second cotter hole runs through second boss and U-shaped open slot; the first jaw part of the left handle is embedded into the U-shaped open slot of the right handle, the pin simultaneously penetrates through the second pin hole and the first pin hole, and the first boss, the second boss and the third boss are all located on the same side of the bending pliers. The bending pliers integrate bending functions such as bending in the faces with different curvatures of the maxillofacial steel plate, bending the side edges and the like, obviously improve the use flexibility of the bending pliers, and save the operation time for bending the steel plate.

Description

Jaw face steel sheet pincers of bending

Technical Field

The utility model particularly relates to a jaw face steel sheet pincers of bending belongs to medical instrument technical field.

Background

The human jaw bone comprises a maxilla and a mandible, when fracture of human maxillofacial region occurs, operation treatment is usually needed, and the main implementation scheme of the operation is to cover the fracture part through an internal fixing steel plate or a titanium plate and fix the fracture part through screws. Because human jaw's different positions have different physiological structure crooked, and the form that is used for jaw internal fixation steel sheet is comparatively single at present, for satisfying the jaw internal fixation demand of different forms, often need carry out artifical bending process to the maxillofacial steel sheet to press close to the physiological curvature of fracture department as far as possible. Present most jaw face steel sheet is rectangular structure usually, need carry on jaw face steel sheet many times different camber in bend with the side bend in order to adapt to the operation demand, satisfy jaw anomalous surface form goodness of fit, need use the multiunit to bend the demand that the pincers could satisfy final bending when the steel sheet is bent at present, lead to surgical equipment too much, be unfavorable for the operation of operation doctor, doctor's the amount of labour has been increased, valuable time has been wasted.

Disclosure of Invention

Problem to prior art existence, the utility model provides a jaw facial steel sheet pincers of bending, aim at bend in the face of the different camber of jaw facial steel sheet and the side function of bending such as bend integrated in one pincers of bending, promote the service function of the pincers of bending.

The technical scheme of the utility model as follows: a bending clamp for maxillofacial steel plates comprises a left handle and a right handle, wherein the front ends of the left handle and the right handle are hinged together through a pin, the front end of the left handle is provided with a first jaw part, the first jaw part comprises a first jaw and a first pin hole, the side surface of the front end of the left handle is provided with a first boss, and the first boss is positioned below the side of the first jaw part; a second jaw part is arranged at the front end of the right handle and comprises a U-shaped open slot and two second jaws which are positioned at the front end of the U-shaped open slot and are arranged at intervals in parallel, a second boss and a third boss are arranged at one side of the U-shaped open slot in parallel at intervals, a second pin hole is arranged in the center of the second boss and penetrates through the second boss and the U-shaped open slot; the first jaw part of the left handle is embedded into the U-shaped open slot of the right handle, the pin penetrates through the second pin hole and the first pin hole simultaneously, and the first boss, the second boss and the third boss are located on the same side of the bending pliers.

Furthermore, a fourth boss is arranged on the side face of the front end of the left handle, the fourth boss and the first boss are respectively arranged on two sides of the left handle, and a groove is arranged on the side face of the fourth boss; the side surface of the front end of the right handle is provided with a fifth boss, the fifth boss and the second boss are respectively arranged on two sides of the right handle, the side surface of the fifth boss is also provided with a groove, and the groove of the fifth boss and the groove of the fourth boss are oppositely arranged.

Furthermore, a threaded hole is formed in the outer side face of the front end of the left handle in a penetrating mode, and a screw is connected in the threaded hole in a matched mode.

Furthermore, a spring leaf is arranged between the left handle and the right handle, one end of the spring leaf is fixedly connected with the inner side of the middle part of the right handle, and the other end of the spring leaf is abutted against the inner side of the upper part of the left handle.

Further, the first boss, the second boss and the third boss are all cylindrical.

Furthermore, the inner sides of the middle lower parts of the left handle and the right handle are both provided with cavities, and the outer sides of the lower parts of the left handle and the right handle are both provided with anti-skid stripes.

Has the beneficial effects that: jaw face steel sheet pincers of bending have three kinds of functions of bending to the jaw face steel sheet, bend in the little curvature of constituteing with first boss, second boss and third boss respectively to bend in the first big curvature of keeping silent and two second are kept silent and are constituteed, bend in the face of constituteing with the recess of fourth boss and fifth boss. Through adjusting the distance that the stop screw precession was unscrewed, utilize the end of screw to lean on and to lean on can realizing spacing when bending on right handle, prevent to bend excessively. Therefore, the bending pliers integrate bending functions such as bending in the faces with different curvatures of the maxillofacial steel plate, bending the side edges and the like, obviously improve the use flexibility of the bending pliers and save the operation time for bending the steel plate.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of the bending pliers of the present invention.

Fig. 2 is a schematic perspective view of the left forceps handle.

Fig. 3 is an enlarged view of region a in fig. 2.

Fig. 4 is a schematic perspective view of the right forceps handle.

Fig. 5 is an enlarged view of region B in fig. 4.

Fig. 6 is a schematic view of another perspective structure of the bending forceps.

The mark in the figure is: 1 left pincers handle, 2 right pincers handles, 3 pins, 4 stop screws, 5 spring leaves, 11 first jaws, 12 first pin holes, 13 first bosses, 14 fourth bosses, 15 threaded holes, 16 clamping grooves, 141 first grooves, 21 screw holes, 22U-shaped open slots, 23 second jaws, 24 second bosses, 25 third bosses, 26 fifth bosses, 241 second pin holes, 261 second grooves.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings.

Fig. 1 and 6 show a three-dimensional structure schematic diagram of a maxillofacial steel plate bending forceps, the bending forceps comprise a left handle 1 and a right handle 2, the front ends of the left handle 1 and the right handle 2 are hinged together through a pin 3, the structure schematic diagram of the left handle 1 is shown in fig. 2-3, and the structure schematic diagram of the right handle 2 is shown in fig. 4-5. A spring piece 5 is also arranged between the left handle and the right handle, one end (lower end) of the spring piece 5 is fixedly connected with the inner side of the middle part of the right handle 2 by a screw, and the screw is screwed in the screw hole 21 of the right handle 2. The other end (upper end) of the spring piece 5 is abutted against the inside of the clamping groove 16 at the upper part of the left handle 1. When in a free state, the spring piece struts the left handle and the right handle, so that the steel plate can be conveniently clamped to bend the steel plate.

As shown in fig. 2-3, a first jaw portion is arranged at the front end of the left handle 1, the first jaw portion comprises a first jaw 11 and a first pin hole 12, a first boss 13 is arranged on the side surface of the front end of the left handle, and the first boss is positioned below the side of the first jaw portion; the side surface of the front end of the left handle is provided with a fourth boss 14, the fourth boss 14 and the first boss 13 are arranged on two sides of the left handle, and the side surface of the fourth boss 14 is provided with a first groove 141.

As shown in fig. 4-5, a second jaw portion is arranged at the front end of the right handle, the second jaw portion includes a U-shaped opening slot 22 and two second jaws 23 positioned at the front end of the U-shaped opening slot 22 and arranged in parallel at intervals, a second boss 24 and a third boss 25 are arranged at one side of the U-shaped opening slot 22 in parallel at intervals, a second pin hole 241 is arranged at the center of the second boss 24, and the second pin hole 241 penetrates through the second boss 24 and the U-shaped opening slot 22; the side surface of the front end of the right handle is also provided with a fifth boss 26, the fifth boss 26 and the second boss 24 are respectively arranged at two sides of the right handle, and the side surface of the fifth boss 26 is provided with a second groove 261.

When the left handle 1 and the right handle 2 are assembled, the first jaw of the left handle is embedded into the U-shaped open slot of the right handle, the pin 3 simultaneously passes through the second pin hole 241 and the first pin hole 12, the first boss 13, the second boss 24 and the third boss 25 are all located on the same side of the bending pliers (see fig. 1), and specifically, the first boss, the second boss and the third boss are all cylindrical. The fourth boss 14 and the fifth boss 26 are both located on the other side of the bending pliers, and the second groove of the fifth boss and the first groove of the fourth boss are arranged in opposite directions (see fig. 6). Thus, when the left handle and the right handle rotate around the pin, the first jaw and the two second jaws are combined to bend in a large-curvature surface of the steel plate, the first boss, the second boss and the third boss are combined to bend in a small-curvature surface of the steel plate, and the fourth boss and the fifth boss are combined to bend in a surface of the steel plate. Thus, one bending clamp has three bending functions at the same time.

Meanwhile, in order to prevent bending transition during bending, a threaded hole 15 penetrates through the outer side face of the front end of the left handle 1, and a limit screw 4 is connected in the threaded hole 15 in a matched mode. The screw-in and screw-out distance of the screw 4 is adjusted, and the tail end of the screw abuts against the inner side of the right handle 2, so that the limit during bending can be realized.

Finally, in order to reduce the weight of the bending pliers, the inner sides of the middle lower parts of the left handle and the right handle are respectively provided with a cavity, and the outer sides of the lower parts of the left handle and the right handle are respectively provided with anti-skidding stripes, so that the hand feeling of a user when holding the bending pliers is more flexible and firmer.

The utility model discloses a use as follows: for a patient with jaw fracture, firstly carrying out X-ray scanning imaging on the jaw to construct a three-dimensional model of the jaw and the fracture, selecting a strip-shaped maxillofacial steel plate, bending the steel plate according to the curved surface of the model, using a bending clamp at the moment, holding the bending clamp by a right hand, firstly inserting the steel plate between a first boss and a second boss and a third boss, then keeping a right handle still, enabling the left handle to rotate around a pin, driving the first boss to extrude the steel plate when the left handle rotates, enabling the steel plate to be in-plane bent, and enabling the curvature of the steel plate to be smaller at the moment; then the left handle is loosened, the spring piece automatically pops the left handle open, the steel plate is taken down and placed between the first jaw and the second jaw, then the left handle is repeatedly pressed, and at the moment, the steel plate is bent in the large-curvature surface; and then loosening the left handle, taking down the steel plate and putting the steel plate into the grooves of the fourth boss and the fifth boss, and then repeatedly pressing the left handle again to bend the steel plate in the surface. The bending steps can be carried out in sequence, matching and combination can be flexibly selected, and meanwhile, the limiting distance of the limiting screw is matched, so that the bent steel plate is matched with the physiological curvature of the jaw bone to the maximum extent, and a good foundation is provided for the next operation and rehabilitation.

Claims

1. The utility model provides a jaw face steel sheet pincers of bending, includes left hand handle and right hand handle, and the front end of left hand handle and right hand handle is together articulated through the pin, its characterized in that: a first jaw part is arranged at the front end of the left handle, the first jaw part comprises a first jaw and a first pin hole, a first boss is arranged on the side surface of the front end of the left handle, and the first boss is positioned below the side of the first jaw part; a second jaw part is arranged at the front end of the right handle and comprises a U-shaped open slot and two second jaws which are positioned at the front end of the U-shaped open slot and are arranged at intervals in parallel, a second boss and a third boss are arranged on one side of the U-shaped open slot at intervals in parallel, a second pin hole is arranged in the center of the second boss and penetrates through the second boss and the U-shaped open slot; the first jaw part of the left handle is embedded into the U-shaped open slot of the right handle, the pin penetrates through the second pin hole and the first pin hole simultaneously, and the first boss, the second boss and the third boss are located on the same side of the bending pliers.

2. The maxillofacial steel plate bending forceps according to claim 1, characterized in that: a fourth boss is arranged on the side face of the front end of the left handle, the fourth boss and the first boss are respectively arranged on two sides of the left handle, and a groove is arranged on the side face of the fourth boss; the side surface of the front end of the right handle is provided with a fifth boss, the fifth boss and the second boss are respectively arranged on two sides of the right handle, the side surface of the fifth boss is also provided with a groove, and the groove of the fifth boss and the groove of the fourth boss are oppositely arranged.

3. The maxillofacial steel plate bending pliers according to claim 1, wherein: a threaded hole is formed in the outer side face of the front end of the left handle in a penetrating mode, and a screw is connected in the threaded hole in a matched mode.

4. The maxillofacial steel plate bending pliers according to claim 1, wherein: a spring piece is further arranged between the left handle and the right handle, one end of the spring piece is fixedly connected with the inner side of the middle of the right handle, and the other end of the spring piece is abutted against the inner side of the upper part of the left handle.

5. The maxillofacial steel plate bending forceps according to claim 1, characterized in that: the first boss, the second boss and the third boss are all cylindrical.

6. The maxillofacial steel plate bending pliers according to claim 1, wherein: the inner sides of the middle lower parts of the left handle and the right handle are both provided with cavities, and the outer sides of the lower parts of the left handle and the right handle are both provided with anti-skid stripes.