CN112617997A

CN112617997A - Integrated pliers with functions of shearing and bending kirschner wire

Info

Publication number: CN112617997A
Application number: CN202011633203.6A
Authority: CN
Inventors: 陈宇峰; 王鹏程; 任栋; 耿林丹
Original assignee: Third Hospital of Hebei Medical University
Current assignee: Third Hospital of Hebei Medical University
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-04-09
Anticipated expiration: 2040-12-31
Also published as: CN112617997B

Abstract

An integrated clamp with functions of shearing and bending a Kirschner wire comprises two arc-shaped structures with overlapped parts and a clamp handle for controlling the arc-shaped structures to be relatively far away; inserting a kirschner wire into the overlapped part of the two arc structures; the two arc-shaped structures are provided with shearing structures for shearing the Kirschner wire during mutual movement; a bending structure which leads the lower end of the sheared Kirschner wire to be in a bending angle is arranged at the middle part below the two arc-shaped structures; the shearing structure is a shearing knife which extends out from the arc structure to the inner side; the stretching of the Kirschner wire is not influenced in the initial motion state after the shearing knife stretches into the overlapped part; and the two arc structures have mutually contacted surfaces; the two arc-shaped structures are provided with vertical sections which are connected with the parallel arrangement of the forceps handles; when the two forceps handles move close to each other, the circle centers of the two arc structures move away from each other; compared with the bending structure, the shearing structure firstly contacts with the shearing kirschner wire and then bends in the contact bending structure. When in use, the operation of cutting and bending can be finished after one set of action, and the operation is simple and convenient.

Description

Integrated pliers with functions of shearing and bending kirschner wire

Technical Field

The invention belongs to the technical field of medical instruments for orthopedic surgery, and particularly relates to an instrument for cutting a kirschner wire, which is applied to the orthopedic surgery when the kirschner wire is used, in particular to an integrated forceps with functions of cutting and bending the kirschner wire.

Background

The kirschner wire is the most commonly used internal fixation needle in orthopaedics, and is divided into two types, namely stainless steel and titanium alloy materials. The Kirschner wire has the advantages of small wound and low price, so the Kirschner wire is widely applied to orthopedic operations. As in adult fractures, kirschner wires can fix fractures of the short ossicles, such as metacarpal, metatarsal, phalanges, and the like. In addition, the avulsion fracture or the tension fracture which is common in orthopedics is also fixed by using a kirschner wire and a steel wire together. Also for children, because the epiphysis is not closed during the growth and development period, if fracture occurs, the operation treatment is needed, and usually a kirschner wire is used for fixation.

However, the kirschner wires commonly used in orthopaedics at present need to cut off and bend the redundant kirschner wires outside the bone after being driven into the bone so as to avoid the tail end of the kirschner wire from penetrating into tissues to cause side injury. At present, the conventional instruments such as a needle holder or locking pliers and a steel wire shear are used for realizing the functions of shortening and bending the kirschner wire, the kirschner wire is generally required to be bent after being shortened, two-step operation is required, the operation is complex, the operation time is prolonged, and if a patient with thick fat or more tissues is encountered, the tail end of the kirschner wire cannot be found well through an opening by the conventional instruments when the patient is bent again, so that the operation is very inconvenient, and the operation progress is delayed.

The invention provides an integrated clamp with functions of shearing and bending a kirschner wire, aiming at the problems that two steps of operation are needed for shearing and bending the kirschner wire and the operation time is long in the prior art.

Disclosure of Invention

An integrated clamp with functions of cutting and bending a kirschner wire comprises two arc structures with overlapped parts and a clamp handle for controlling the circle centers of the arc structures to move relatively far away; it is characterized in that a kirschner wire is inserted into the overlapped part of the two arc structures; the two arc-shaped structures are provided with shearing structures for shearing the Kirschner wire during mutual movement; the middle part below the two arc structures is provided with a bending structure which leads the lower end of the sheared Kirschner wire to be in a bending angle of 90-120 degrees; the shearing structure comprises a shearing knife which is arranged on any one or two arc-shaped structures and extends out; the shearing knife extends out from the annular edge of the arc-shaped structure to the overlapping part; the stretching of the Kirschner wire is not influenced in the initial motion state after the shearing knife stretches into the overlapped part; and one arc structure has 1 or two surfaces which are mutually contacted with the other arc structure; the two arc-shaped structures are provided with vertical sections which are connected with the parallel arrangement of the forceps handles; when the two forceps handles move close to each other, the circle centers of the two arc structures move away from each other; compared with the bending structure, the shearing structure firstly contacts with the shearing kirschner wire and then bends in the contact bending structure. When the pair of combined pliers is used, the two arc-shaped structures are driven to be relatively far away through the relatively close movement of the rear end control pliers handle, so that the overlapped part is reduced, the shearing of the shearing structures on the Kirschner wire is realized when the overlapped part is reduced to a certain distance, the bending structures are also close to each other in the process of keeping away from the overlapped part, the strip is continuously moved after the shearing is finished, the bending contact of the two bending structures and the Kirschner wire is realized, the bending of the Kirschner wire is realized, the whole process can be completed only by operating the pliers handle to complete one-time.

Furthermore, a bending structure which enables the lower end of the sheared Kirschner wire to be in a 90-degree bending angle is arranged at the middle part below the two arc-shaped structures.

Furthermore, the angle range of the two arc structures is 120-360 degrees, and the angle arrangement can form enough overlapping parts, so that the whole process has enough movement space.

Further, the angle of the two arc structures is 180 degrees or 360 degrees; these two kinds of angles are semicircle and circular shape arc structure, and stability is better when whole structure sets up.

Furthermore, a straight section is arranged at the middle position of the arc-shaped structure, and a shearing structure and a bending structure are arranged on the straight section, so that the arrangement is more convenient and effective.

Furthermore, the two arc structures are arc structures with the same diameter, the arc structures are provided with upwards-expanded arc sections which are connected with two edge positions of the arc structures or the diameters of the arc structures and are connected with two point positions, the middle positions above the arc sections are provided with vertical sections, and the arc sections are symmetrically arranged by taking the shearing structures and the bending structures as symmetry axes. Through the arrangement, the annular structure can form a stable structure, the force is ensured to be uniform in the relative movement process, and deflection is avoided.

Furthermore, the radian of the arc-shaped section is less than or equal to 180 degrees, and the angle setting is more effective.

Further, the shearing structure is a shearing knife extending out of one arc-shaped structure, and the cutting edge of the shearing knife is arranged on the contact surface of the two arc-shaped structures.

Further, two arc structures are the arc structure that thickness is different, are thick arc structure one and thin arc structure two respectively, and the last arc breach that supplies arc structure two to get into that sets up of arc structure one, arc breach be the arc breach that big or small real arc structure two can pass through completely.

Furthermore, the thickness of the arc-shaped notch is equal to that of the arc-shaped structure I, the upper surface and the lower surface of the arc-shaped structure II are in mutual contact with the upper surface and the lower surface of the arc-shaped notch, and the stable structure with two contact surfaces can be formed.

Furthermore, the angle of two arc structures is 180 degrees, and the arc section setting is in the both sides border position of arc structure, and the angle of arc breach also is 180 degrees, and sets up the little post of connecting the arc breach at the arc breach rear end.

Or the angle of the two arc-shaped structures is 360 degrees, the arc-shaped section is arranged at the position where the diameter of the arc-shaped structure is connected with two points, and the shearing structure and the bending structure are arranged at the inner side position in the middle of one side of the arc-shaped structure connected with the arc-shaped section; the arc breach sets up to 180 degrees, and the effective activity of another arc structure can be guaranteed in this kind of setting, and overall structure stability is higher. Further, the shearing structure and the bending structure are arranged in the middle of the arc structures at the mutually overlapped parts.

Further, cut the sword setting in the centre of arc structure two, and cut the cutting edge setting of sword on the contact surface of arc structure two and arc breach below, this kind of setting can be effectively cut the kirschner wire in the below fast, and the below is cuted and is also made things convenient for the kirschner wire to not have to stop taking place the in-process of bending more.

Further, shearing sword both sides set up the limiting plate of guaranteeing the contact of kirschner wire and cutting edge, and the thickness of limiting plate equals the thickness of arc structure two, and this kind of setting can guarantee that the limiting plate passes through the arc breach smoothly under the prerequisite that keeps the effective contact of kirschner wire and cutting edge.

Further, when relative motion did not take place initially, the limiting plate stretched into in the arc breach, and this kind of setting can effectively guarantee the limiting plate to the guide cutting of cutting edge, prevents that the position from taking place the skew.

Furthermore, an anti-dislocation rod is arranged on the other side of the middle position of the second arc structure opposite to the limit position; the setting of anticreep position pole can effectively guarantee that two arc structure positions take place to leave the back horizontal position relatively and do not change, guarantees bending structure's the effect of bending.

Furthermore, the bending structure comprises a bending part arranged at the middle position below one arc-shaped structure and a bearing part arranged below the other arc-shaped structure; and after the bending part moves to the bearing part, the Kirschner wire forms a bending angle of 90-120 degrees, and in a static state, the minimum distance between the bending part and the bearing part is not less than the difference between the distance from the shearing knife to the middle position of the other arc-shaped structure which is not sheared and the diameter of the Kirschner wire. Effectively preventing the bending after shearing and protecting the tissue.

Further, the anti-deviation structure is arranged for guiding the movement direction of the bending part and preventing the kirschner wire from deviating, and further the anti-deviation structure is a guide plate arranged on two sides of the bearing part.

Further, the kink is the right angle triangle post structure, and the inclined plane is in the inboard, and the right angle triangle post is the structure of the size grow gradually from the bottom up, and the portion of accepting is the L type columnar structure of inboard open-ended earlier on, and the bottommost setting of right angle triangle post is in the top of L type columnar structure horizontal part. Furthermore, the bottommost part of the right-angle triangular column is flush with the plane above the horizontal part, and the arrangement can effectively ensure the bending of the kirschner wire after being cut off. Furthermore, two sides of the lower part of the L-shaped columnar structure are provided with guide plates, and the guide plates are arranged to enable a notch to be formed below the L-shaped columnar structure. Furthermore, L type columnar structure is the slope L type columnar structure of vertical limit slope, and the hypotenuse of slope limit and right angle triangle post structure is parallel, and this kind of setting can be more effective that ke shi nail forms the 90 jiaos of bending. Furthermore, the length of the transverse edge of the L-shaped columnar structure is not less than that of the right-angle triangular column, so that a sufficient bending space is formed after the Kirschner wire is bent.

Or the bending part is of a cylindrical structure with a chamfer angle and comprises a rectangular prism and a triangular prism; the rectangle post sets up in arc structure below, and the triangle-shaped post sets up in the inboard below of rectangle post, and the triangle-shaped post from being close to the cuboid post to keeping away from the structure that the cuboid post diminishes gradually, and the top of triangle-shaped post is straight structure, and the portion of accepting is for being provided with the vertical plate that supplies the square mouth that the kink passes through, and this kind of setting can guarantee that the bending part is 90 degrees with the bending of ke shi needle when passing through square mouth, reaches fine effect of bending. Furthermore, the guide plates are arranged on two sides of the square opening of the vertical plate, the bending guide effect can be well realized by the guide plates, and the kirschner wire can be prevented from deviating when force is applied.

Furthermore, the symmetrical surfaces of all the structures arranged on the arc-shaped structure are symmetrical surfaces of the arc-shaped structure, and the arrangement furthest ensures that the force application directions are consistent.

Furthermore, the vertical section on the same side and the forceps handles on the same side are of an integrally connected structure, and the forceps handles on the two sides are connected in the middle. The arrangement can ensure that when the end of the clamp handle moves close to the clamp handle, the two arc-shaped structures transmit the movement of the circle center which is relatively far away, so that the overlapped part is reduced to achieve the cutting effect.

Furthermore, the middle part of each side of the clamp handle is provided with a protruding platform, the protruding platform is provided with a shaft hole, a rotating shaft for connecting the shaft holes of the two clamp handles is arranged, and two sides of the rotating shaft are provided with anti-falling rings.

Furthermore, the height of the connecting position of the forceps handle is larger than the length of the Kirschner wire left on the outer section compared with the annular structure, and the arrangement can prevent the interference of the connecting position on the insertion of the Kirschner wire.

Furthermore, all structures are set to be tough steel structures, the shearing knife is made of materials with high hardness, and effective shearing of the Kirschner wire can be achieved.

Compared with the prior art, the technical scheme of the invention can cut and bend the Kirschner wire at one time, the operation is simple and convenient, the bottom bending structure is smaller, the small bottom bending structure can enter the small operation opening to be bent, the larger arc-shaped structure can be left outside the body to complete the cutting function, the whole structure is reasonable in design, the operation only needs to be carried out by tightly holding the forceps handle, and the operation is very simple.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the handle portion of the pliers of the present invention;

FIG. 3 is a front view of a portion of the L-shaped pillar of the receiving portion of the present invention;

FIG. 4 is a schematic top view of a portion of an arc structure of an L-shaped pillar of a receiving portion of the present invention;

FIG. 5 is a structural diagram of an L-shaped cylindrical bearing section with an arcuate structure according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a second arc structure of the L-shaped cylindrical structure of the carrying portion of the present invention;

FIG. 7 is a schematic structural view of a second arc structure of the carrying part with an L-shaped cylindrical structure and guiding plates arranged on two sides thereof according to the present invention;

FIG. 8 is a partial structural view of an arcuate structure of an embodiment of a square mouth on a bolster of the present invention;

FIG. 9 is a structural view of an arc structure of an embodiment of the receiving portion with a square mouth of the present invention;

FIG. 10 is a schematic structural view of a second arc-shaped structure of the square mouth of the receiving part according to the embodiment of the present invention;

FIG. 11 is a partial structural view of an arcuate structure according to an embodiment of the present invention in which the arcuate structure is disposed at 360 degrees;

FIG. 12 is a structural schematic view of an arcuate structure of an embodiment of the present invention in which the arcuate structure is arranged at 360 degrees;

FIG. 13 is a schematic structural view of an arc structure of an embodiment of the present invention in which the arc structure is 360 degrees;

in the figure, 1, an arc structure I; 11. an arc-shaped notch; 12. a right-angled triangular prism; 131. a rectangular parallelepiped column; 132. A triangular column; 2. an arc-shaped structure II; 21. a shearing knife; 22. a limiting plate; 23. an anti-dislocation rod; 24. An L-shaped columnar structure; 251. a vertical plate; 252. a square opening; 253. a guide plate; 41. an arc-shaped section; 42. A vertical section; 43. a forceps handle; 44. a protruding platform; 45. a shaft hole; 46. a rotating shaft.

Detailed Description

Embodiment 1 an integrated forceps with functions of cutting and bending kirschner wires

An integrated clamp with functions of cutting and bending a kirschner wire comprises two 180-degree arc structures with overlapped parts and a clamp handle 43 for controlling the circle centers of the arc structures to move relatively far away; it is characterized in that a kirschner wire is inserted into the overlapped part of the two arc structures; the two arc-shaped structures are provided with shearing structures for shearing the Kirschner wire during mutual movement; the middle part below the two arc structures is provided with a bending structure which leads the lower end of the sheared Kirschner wire to be in a 90-bending angle; the shearing structure comprises a shearing knife 21 which is arranged on any one or two arc-shaped structures and extends out; the shearing blade 21 extends from the annular edge of the arc-shaped structure to the overlapping part; and the initial state of the movement of the shearing knife 21 after extending into the overlapped part does not influence the extension of the Kirschner wire; and one arc structure has 1 or two surfaces which are mutually contacted with the other arc structure; the two arc structures are provided with vertical sections 42 which are connected with the forceps handles 43 and are arranged in parallel; when the two forceps handles 43 move close to each other, the circle centers of the two arc structures move away from each other; compared with the bending structure, the shearing structure firstly contacts with the shearing kirschner wire and then bends in the contact bending structure. During the use, move through the relative being close to of rear end control pincers handle 43 and drive two arc structures and take place to keep away from relatively, and then make the overlap portion reduce, realize shearing structure to the shearing of kirschner wire when minifying to certain distance, and keep away from in-process bending structure and also be close to each other, continue the motion after the area is sheared, realize two bending structures and the contact of bending of kirschner wire, realize bending to the kirschner wire, whole process only needs operation pincers handle 43 to accomplish once the motion and can accomplish, easy operation is convenient. A straight section is arranged at the middle position of the arc-shaped structure, and a shearing structure and a bending structure are arranged on the straight section, so that the arrangement is more convenient and effective.

The two arc structures are arc structures with the same diameter, the arc structures are provided with arc sections 41 which are connected with two edge positions of the arc structures and are expanded upwards, the middle position above the arc sections 41 is provided with a vertical section 42, and the arc sections 41 are symmetrically arranged by taking a shearing structure and a bending structure as symmetry axes. Through the arrangement, the annular structure can form a stable structure, the force is ensured to be uniform in the relative movement process, and deflection is avoided. The arc of the arc segment 41 is equal to 180 degrees, which is more efficient.

The two arc structures are arc structures with different thicknesses, namely a thick arc structure I1 and a thin arc structure II 2, an arc notch 11 for the arc structure II 2 to enter is arranged on the arc structure I1, and the arc notch 11 can be completely passed through by the large and small arc structures II 2. The thickness of the arc-shaped notch 11 is equal to that of the arc-shaped structure I1, and the upper surface and the lower surface of the arc-shaped structure II 2 are in mutual contact with the upper surface and the lower surface of the arc-shaped notch 11, so that a stable structure with two contact surfaces can be formed. The angle of the arc notch 11 is also 180 degrees, and a small column connected with the arc notch 11 is arranged at the rear end of the arc notch 11.

The shearing structure is a shearing knife 21 extending out of the second arc-shaped structure 2, and the cutting edge of the shearing knife 21 is arranged on the contact surface of the two arc-shaped structures. Cut sword 21 and set up in the centre of arc structure two 2, and cut the cutting edge setting of sword 21 on the contact surface of arc structure two 2 and arc breach 11 below, this kind of setting can be effectively cut the kirschner wire in the below fast, and the below is cut and also makes things convenient for the kirschner wire not to stop taking place the in-process of bending more.

The bending structure comprises a bending part arranged at the middle position below one arc-shaped structure and a bearing part arranged below the other arc-shaped structure; after the bending part moves to the bearing part, the Kirschner wire forms a bending angle of 90-120 degrees, and in a static state, the minimum distance between the bending part and the bearing part is not less than the difference between the distance from the shearing knife 21 to the middle position of the other arc-shaped structure which is not sheared and the diameter of the Kirschner wire. Effectively preventing the bending after shearing and protecting the tissue. The anti-deviation structure is used for guiding the movement direction of the bending part and preventing the deviation of the Kirschner wire, and the anti-deviation structure is a guide plate arranged on two sides of the bearing part.

The bending part is a right-angle triangular column 12 structure, the inclined plane is on the inner side, the right-angle triangular column 12 is a structure with gradually increased size from bottom to top, the receiving part is an L-shaped column structure 24 with an inner side opening, and the bottommost part of the right-angle triangular column 12 is arranged above the horizontal part of the L-shaped column structure 24. The bottommost part of the right-angle triangular column 12 is flush with the plane above the horizontal part, and the arrangement can effectively ensure the bending of the kirschner wire after being cut off. The two sides of the lower part of the L-shaped columnar structure 24 are provided with guide plates 253, and the arrangement of the guide plates 253 enables a notch to be formed below the L-shaped columnar structure 24. The L-shaped columnar structure 24 is an inclined L-shaped columnar structure 24 with an inclined vertical edge, and the inclined edge is parallel to the inclined edge of the right-angle triangular column 12 structure, so that the arrangement can more effectively enable the Kirschner nail to form a bent 90-degree angle. The length of the transverse edge of the L-shaped column structure 24 is not less than that of the right-angle triangular column 12, so that a sufficient bending space is ensured after the Kirschner wire is bent.

The symmetrical surfaces of all structures arranged on the arc-shaped structure are symmetrical surfaces of the arc-shaped structure, and the arrangement ensures that the force application directions are consistent to the maximum extent.

The vertical section 42 on the same side and the forceps handles 43 on the same side are integrally connected, and the forceps handles 43 on both sides are connected at the middle part. The arrangement can ensure that when the end of the forceps handle 43 moves close to the center of a circle, the two arc structures transmit the movement of the center of the circle which is relatively far away, so that the overlapped part is reduced to achieve the cutting effect. The middle part of each side clamp handle 43 is provided with a protruding platform 44, the protruding platform 44 is provided with a shaft hole 45, a rotating shaft 46 connected with the shaft holes 45 of the two clamp handles 43 is arranged, and two sides of the rotating shaft 46 are provided with anti-falling rings. The connection position of the forceps handle 43 is higher than the height of the annular structure by the length of the kirschner wire left at the outer section, and the arrangement can prevent the interference of the connection position on the insertion of the kirschner wire. All structures are set to be tough steel structures, the shearing knife 21 is made of materials with high hardness, and effective shearing of the Kirschner wire can be achieved.

Embodiment 2 an integrated clamp with functions of shearing and bending kirschner wires

Shear the limiting plate 22 that sword 21 both sides set up the contact of assurance kirschner wire and cutting edge, and the thickness of limiting plate 22 equals the thickness of arc structure two 2, and this kind of setting can be guaranteed that limiting plate 22 passes through arc breach 11 smoothly under the prerequisite that keeps kirschner wire and cutting edge effective contact. When relative motion did not take place in the initial, limiting plate 22 stretches into in the arc breach 11, and this kind of setting can effectively guarantee limiting plate 22 to the guide cutting of cutting edge, prevents that the position from taking place the skew. An anti-dislocation rod 23 is arranged on the other side of the middle position of the second arc structure 2 opposite to the limit position; the anti-dislocation rod 23 can effectively ensure that the horizontal position is not changed after the two arc-shaped structure positions leave relatively, and the bending effect of the bending structure is ensured.

Embodiment 3 an integrated clamp with functions of shearing and bending kirschner wires

The bending part is a cylindrical structure with a chamfer and comprises a rectangular prism 131 and a triangular prism 132; the rectangle post sets up in arc structure below, triangle-shaped post 132 sets up in the inboard below of rectangle post, and triangle-shaped post 132 is the structure that diminishes gradually from being close to cuboid post 131 to keeping away from cuboid post 131, and the top of triangle-shaped post 132 is straight structure, and the portion of accepting is for being provided with the vertical plate 251 of the square mouth 252 that supplies the kink to pass through, and this kind of setting can guarantee that the bending part is 90 degrees with the bending of ke shi needle when passing through square mouth 252, reaches fine effect of bending. The guide plates 253 are arranged on two sides of the square opening 252 of the vertical plate 251, the bending guide effect can be well realized by the arrangement of the guide plates 253, and the deviation of the Kirschner wire when force is applied can be avoided.

Embodiment 4 an integrated forceps with functions of cutting and bending kirschner wires

Embodiment 5 an integrated forceps with functions of cutting and bending kirschner wires

An integrated clamp with functions of cutting and bending a kirschner wire comprises two 360-degree arc structures with overlapped parts and a clamp handle 43 for controlling the circle centers of the arc structures to move relatively far away; it is characterized in that a kirschner wire is inserted into the overlapped part of the two arc structures; the two arc-shaped structures are provided with shearing structures for shearing the Kirschner wire during mutual movement; the middle part below the two arc structures is provided with a bending structure which leads the lower end of the sheared Kirschner wire to be in a 90-bending angle; the shearing structure comprises a shearing knife 21 which is arranged on any one or two arc-shaped structures and extends out; the shearing blade 21 extends from the annular edge of the arc-shaped structure to the overlapping part; and the initial state of the movement of the shearing knife 21 after extending into the overlapped part does not influence the extension of the Kirschner wire; and one arc structure has 1 or two surfaces which are mutually contacted with the other arc structure; the two arc structures are provided with vertical sections 42 which are connected with the forceps handles 43 and are arranged in parallel; when the two forceps handles 43 move close to each other, the circle centers of the two arc structures move away from each other; compared with the bending structure, the shearing structure firstly contacts with the shearing kirschner wire and then bends in the contact bending structure. During the use, move through the relative being close to of rear end control pincers handle 43 and drive two arc structures and take place to keep away from relatively, and then make the overlap portion reduce, realize shearing structure to the shearing of kirschner wire when minifying to certain distance, and keep away from in-process bending structure and also be close to each other, continue the motion after the area is sheared, realize two bending structures and the contact of bending of kirschner wire, realize bending to the kirschner wire, whole process only needs operation pincers handle 43 to accomplish once the motion and can accomplish, easy operation is convenient. A straight section is arranged at the middle position of the arc-shaped structure, and a shearing structure and a bending structure are arranged on the straight section, so that the arrangement is more convenient and effective.

The two arc structures are arc structures with the same diameter, the arc sections 41 are upwards expanded at the positions of two points connected by the diameter of the arc structures, the vertical sections 42 are arranged at the middle positions above the arc sections 41, and the arc sections 41 are symmetrically arranged by taking the shearing structures and the bending structures as symmetrical axes. Through the arrangement, the annular structure can form a stable structure, the force is ensured to be uniform in the relative movement process, and deflection is avoided. The arc of the arc segment 41 is equal to 180 degrees, which is more efficient.

The shearing structure and the bending structure are arranged at the middle inner side position of one side of the arc structure connected with the arc section 41; arc breach 11 sets up to 180 degrees, and the effective activity of another arc structure can be guaranteed in this kind of setting, and overall structure stability is higher. The shearing structure and the bending structure are arranged in the middle of the arc structures at the mutually overlapped parts.

The above description of the embodiments is only for the understanding of the present invention. It should be noted that modifications could be made to the invention without departing from the principle of the invention, which would also fall within the scope of the claims of the invention.

Claims

1. An integrated clamp with functions of cutting and bending a kirschner wire comprises two arc structures with overlapped parts and a clamp handle (43) for controlling the circle centers of the arc structures to move relatively far away; it is characterized in that a kirschner wire is inserted into the overlapped part of the two arc structures; the two arc-shaped structures are provided with shearing structures for shearing the Kirschner wire during mutual movement; the middle part below the two arc structures is provided with a bending structure which leads the lower end of the shearing kirschner wire to be in a bending angle of 90-120 degrees; the shearing structure comprises a shearing knife (21) which is arranged on any one or two arc-shaped structures and extends out; the shearing knife (21) extends from the annular edge of the arc-shaped structure to the overlapped part; and the stretching of the Kirschner wire is not influenced in the initial motion state after the shearing knife (21) stretches into the overlapped part; and one arc structure has 1 or two surfaces which are mutually contacted with the other arc structure; the two arc structures are provided with vertical sections (42) which are connected with the clamp handles (43) and arranged in parallel; when the two forceps handles (43) move close to each other, the circle centers of the two arc structures move away from each other; compared with the bending structure, the shearing structure firstly contacts with the shearing kirschner wire and then bends in the contact bending structure.

2. The integrated forceps with the functions of shearing and bending the kirschner wires according to claim 1, wherein the two arc-shaped structures are arc-shaped structures with the same diameter, an upward-bulging arc-shaped section (41) which is connected with two edge positions of the arc-shaped structures or two point positions of the diameters of the arc-shaped structures is arranged on the arc-shaped structures, a vertical section (42) is arranged at the middle position above the arc-shaped section (41), and the arc-shaped sections (41) are symmetrically arranged by taking the shearing structures and the bending structures as symmetry axes.

3. The integrated pliers with functions of shearing and bending the kirschner wire according to claim 2, wherein the two arc structures are arc structures with different thicknesses, namely a thick arc structure I (1) and a thin arc structure II (2), an arc notch (11) for the arc structure II (2) to enter is arranged on the arc structure I (1), and the arc notch (11) is an arc notch (11) through which the large arc structure II (2) and the small arc structure II (2) can completely pass.

4. The integrated pliers with the functions of shearing and bending the kirschner wire according to claim 3, wherein the thickness of the arc-shaped notch (11) is equal to that of the arc-shaped structure I (1), and the upper surface and the lower surface of the arc-shaped structure II (2) are in contact with the upper surface and the lower surface of the arc-shaped notch (11).

5. The integrated pliers with functions of shearing and bending the kirschner wire according to any one of claims 1 to 4, wherein the bending structure comprises a bending part arranged at the middle position below one arc-shaped structure and a bearing part arranged below the other arc-shaped structure; after the bending part moves to the bearing part, the Kirschner wire forms a bending angle of 90-120 degrees, and in a static state, the minimum distance between the bending part and the bearing part is not less than the difference between the distance from the shearing knife (21) to the middle position of the other arc-shaped structure which is not sheared and the diameter of the Kirschner wire.

6. The forceps of claim 5, wherein the bent portion is a right-angled triangular pillar (12), the inclined surface is on the inner side, the right-angled triangular pillar (12) has a gradually increasing size from bottom to top, the receiving portion is an L-shaped pillar (24) opening to the inner side, and the bottom of the right-angled triangular pillar (12) is disposed above the horizontal portion of the L-shaped pillar (24).

7. The integrated pliers with the function of shearing and bending the kirschner wire according to claim 6, wherein the L-shaped column structure (24) is an inclined L-shaped column structure (24) with the vertical side inclined, and the inclined side is parallel to the inclined side of the right-angled triangular column (12) structure.

8. The integrated forceps with functions of shearing and bending the Kirschner wire as claimed in claim 5, wherein the bent portion is a cylindrical structure with a chamfer, and comprises a rectangular prism (131) and a triangular prism (132); the rectangle post sets up in arc structure below, and triangle-shaped post (132) set up in the inboard below of rectangle post, and triangle-shaped post (132) from being close to cuboid post (131) to keeping away from cuboid post (131) for the structure that diminishes gradually, and the top of triangle-shaped post (132) is straight structure, and the portion of accepting is vertical plate (251) that is provided with square mouth (252) that supplies the kink to pass through.

9. The integrated pliers with functions of shearing and bending the kirschner wires according to any one of claims 1 to 4 and 6 to 8, wherein the symmetry planes of all the structures arranged on the arc-shaped structure are the symmetry planes of the arc-shaped structure.

10. The integrated pliers with functions of shearing and bending the kirschner wire according to any one of claims 1 to 4 and 6 to 8, wherein the vertical sections (42) at the same side and the handles (43) at the same side are integrally connected, and the handles (43) at both sides are connected at the middle part.