CN217286026U

CN217286026U - Kirschner wire guiding forceps with accurate positioning

Info

Publication number: CN217286026U
Application number: CN202123109382.6U
Authority: CN
Inventors: 邹时雨
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-08-26
Anticipated expiration: 2031-12-10

Abstract

The utility model relates to the technical field of Kirschner wire guiding forceps, and discloses Kirschner wire guiding forceps with accurate positioning, which comprises a first forceps body, a second forceps body and a telescopic piece, wherein the first forceps body is connected with the second forceps body through an articulated piece, the first forceps body and the second forceps body are respectively divided into a forceps handle and a forceps head by the articulated piece, and the length of the end part of the forceps head of the second forceps body to the articulated piece is r; one end of the telescopic piece is hinged with the end part of the tong head of the second tong body, the other end of the telescopic piece is hinged on the tong handle of the first tong body to form a rotating fulcrum, and the distance between the rotating fulcrum and the hinged piece is also r; the end part of the telescopic piece is provided with a sleeve for guiding the Kirschner wire, and the sleeve is close to the end part of the forceps head of the second forceps body and is perpendicular to the telescopic piece; like this, utilize the grip function of direction pincers, it is fixed with fracture piece centre gripping to inject the angle and the position of kirschner wire needle insertion, prevent that artificial operation error from appearing and lead to the cross needle route of kirschner wire and a little deviation of taking out of needle, guaranteed the accuracy of kirschner wire operation.

Description

Kirschner wire guiding forceps with accurate positioning

Technical Field

The patent of the utility model relates to a technical field of ke shi needle direction pincers particularly, relates to the accurate ke shi needle direction pincers in location.

Background

The kirschner wire is a commonly used internal fixation material for orthopedics, and the original specification of the kirschner wire is generally fixed at about twenty centimeters, and the diameter of the kirschner wire is between 0.5 and 2 millimeters. The device is used for fixing short fractures or avulsion fractures and other fractures with low stress, and is widely applied to the fixation of temporary fracture blocks in orthopedic operations and the final deterministic treatment of hand surgical fractures.

In an orthopedic surgery, a kirschner wire is often required to penetrate through one bone block through skin and soft tissue and then to be drilled into another preset bone block for fixation, and in the surgery, because the kirschner wire is drilled for a long distance and the drilling direction is slightly deviated, the final drilling position has large deviation and cannot reach the expected position. Under the condition, the Kirschner wire is taken out and re-drilled, but the Kirschner wire is time-consuming and labor-consuming, the operation time is prolonged, and the pain of a patient is increased.

Therefore, a kirschner wire guiding clamp with accurate positioning needs to be designed to solve the problems.

Disclosure of Invention

An object of the utility model is to provide a direction pincers of ke shi needle of location accuracy aims at solving prior art, and the not accurate enough problem in ke shi needle direction pincers location.

The utility model discloses a what realize like this, accurate kirschner wire direction pincers of location, including first pincers body, second pincers body and extensible member, connect through the articulated elements between the first pincers body and the second pincers body, the articulated elements divide into the first pincers body and the second pincers body into pincers handle and binding clip respectively, the length that the tip of the binding clip of the second pincers body apart from the articulated elements is r; one end of the telescopic piece is hinged with the end part of the tong head of the second tong body, the other end of the telescopic piece is hinged on the tong handle of the first tong body to form a rotating fulcrum, and the distance between the rotating fulcrum and the hinged piece is also r; the end part of the telescopic piece is provided with a sleeve for guiding the Kirschner wire, and the sleeve is close to the end part of the forceps head of the second forceps body and is perpendicular to the telescopic piece.

Furthermore, a through hole for the kirschner wire to penetrate through is formed in the sleeve, and the through hole is arranged along the axial direction of the sleeve and is perpendicular to the telescopic piece.

Further, the through hole is cylindrical, and the diameter of the through hole is larger than that of the Kirschner wire.

Further, the length of the Kirschner wire is greater than the length of the through hole.

Further, the distance between the end of the binding clip of the first caliper body and the hinge is r, when the sleeve is far away from the end of the binding clip of the first caliper body, the telescopic piece contracts, when the sleeve is close to the end of the binding clip of the first caliper body, the telescopic piece stretches, and when the two binding clips are closed, the length of the telescopic piece is greater than the distance from the rotating fulcrum to the end of the binding clip of the second caliper body.

Furthermore, the telescopic piece comprises a front telescopic rod and a rear telescopic rod which are parallel to each other, one end of the front telescopic rod and one end of the rear telescopic rod are hinged to the rotating fulcrum, and the other end of the front telescopic rod and the other end of the rear telescopic rod are fixedly connected with the outer side of the sleeve.

Furthermore, preceding telescopic link and back telescopic link all include canned paragraph and flexible section, be equipped with the confession in the canned paragraph the jack that flexible section wore to establish, flexible section is kept away from telescopic one end is arranged in the jack, flexible section can be relative the canned paragraph extension or shorten.

Further, one end of each of the two forceps handles, which is far away from the hinge, is bent outwards to form a finger ring buckle which is convenient to grasp.

Furthermore, the inner sides of the ends, far away from the hinge part, of the two forceps handles are provided with positioning buckles, and the positioning buckles and the finger ring buckle are arranged on the same plane.

Furthermore, two the location buckle is upper and lower incisor cooperation structure.

Compared with the prior art, the utility model provides an accurate ke shi needle direction pincers in location, because the tip of second pincers body binding clip is r apart from the length of articulated elements, the distance of rotation fulcrum and articulated elements also is r, and the sleeve that is used for wearing to establish ke shi needle is perpendicular with the extensible member, consequently, the angle that acts on the operation position behind the ke shi needle through the sleeve is fixed, the direction pincers have clamping function simultaneously, can be fixed with the fracture piece centre gripping that needs the operation in advance, it maintains the effect that resets to make the fracture piece, and prescribe a limit to the angle and the position of ke shi needle inlet wire, can guarantee the positioning accuracy that the operation in ke shi needle goes out the needle point, prevent to appear artificial operating error in the operation and lead to the threading route and the outlet wire point of ke shi needle and take place the deviation, accurate effect in location has been realized.

Drawings

Fig. 1 is a schematic top view of the kirschner wire guiding forceps for precise positioning provided by the present invention;

FIG. 2 is a schematic diagram of a lateral view of the Kirschner wire guiding forceps with precise positioning according to the present invention;

fig. 3 is a schematic structural view of the telescopic member provided by the present invention;

fig. 4 is a schematic structural diagram of the fixing section and the telescopic section provided by the present invention cooperating with each other.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following describes the implementation of the present invention in detail with reference to specific embodiments.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

Referring to fig. 1-4, the preferred embodiment of the present invention is shown.

The Kirschner wire guide forceps with accurate positioning comprise a first forceps body 100, a second forceps body 200 and a telescopic piece 300, wherein the first forceps body 100 and the second forceps body 200 are connected through a hinge piece 400, the hinge piece 400 divides the first forceps body 100 and the second forceps body 200 into a forceps handle and a forceps head respectively, and the length from the end part of the forceps head 201 of the second forceps body to the hinge piece 400 is r; one end of the telescopic piece 300 is hinged with the end part of the second caliper body head 201, the other end of the telescopic piece 300 is hinged on the first caliper body handle 102 to form a rotating fulcrum 500, and the distance between the rotating fulcrum 500 and the hinge 400 is also r; the end of the telescopic member 300 is provided with a sleeve 600 for guiding the kirschner wire, and the sleeve 600 is arranged close to the end of the second forceps body head 201 and perpendicular to the telescopic member 300.

Like this, because the length that the tip of second pincers body binding clip 201 apart from articulated elements 400 is r, the distance of rotation fulcrum 500 and articulated elements 400 also is r, and the sleeve 600 that is used for wearing to establish the kirschner wire is perpendicular with extensible member 300, consequently the angle that acts on the operation position behind the kirschner wire through sleeve 600 is fixed, the direction pincers have a clamping function simultaneously, can be fixed with the fracture piece centre gripping that needs the operation in advance, make the fracture piece maintain the effect that resets, and inject the angle and the position of kirschner wire needle entering, can guarantee the positioning accuracy of kirschner wire needle point of going out in the operation, prevent to appear artificial operating error and lead to the deviation of the needle threading route and the point of going out of the needle of kirschner wire in the operation, the accurate effect in location has been realized.

Since the distance from the end of the second forceps head 201 to the hinge 400 is equal to the distance from the end of the first forceps head 101 to the hinge 400, the sleeve 600 and the end of the first forceps head 101 move on a circle with the hinge 400 as the center and r as the radius as the opening or closing of the two forceps bodies; the rotation pivot 500 is on the same straight line with the end of the first caliper body head 101, and the distance between the hinge 400 and the end of the first caliper body head 101 is also r, so that according to the mathematical circumferential angle theorem, the angle formed by the connection of the rotation pivot 500, the end of the second caliper body head 201 and the end of the first caliper body head 101 is constant at 90 degrees, and the sleeve 600 designed by us is constant perpendicular to the telescopic member 300; the k-wire passing through the sleeve 600 is therefore also constantly perpendicular to the telescopic element 300 and the exit point of the k-wire must pass the end of the first forceps head 101.

A kirschner wire sleeve is arranged above the sleeve 600 and is arranged perpendicular to the telescopic piece, and the kirschner wire sleeve has a guiding function on the kirschner wire, so that the kirschner wire passing through the kirschner wire sleeve and the sleeve 600 is kept perpendicular to the telescopic piece.

The sleeve 600 is internally provided with a through hole 601 for the kirschner wire to penetrate, the through hole 601 is arranged along the axial direction of the sleeve and is vertical to the telescopic piece 300, the through hole 601 is vertical to the telescopic piece 300, so that the kirschner wire penetrating through the through hole 601 is also vertical to the telescopic piece 300, the angle of the kirschner wire during the operation is fixed, and the positioning accuracy of the kirschner wire during the operation process can be ensured as long as the position and the angle of the kirschner wire during the operation are determined.

Perforating hole 601 is cylindrical, the diameter of perforating hole 601 is greater than the diameter of ke shi needle, the length of ke shi needle is greater than the length of perforating hole 601, telescopic length should be long enough, the design of the ke shi needle sleeve of certain length, can avoid the ke shi needle in the bending that the in-process was artificially caused of beating into to the at utmost, thereby cause out the skew of needle point, can also avoid simultaneously using the electric drill to bore into surrounding soft tissue when ke shi needle, important blood vessel, nerve, tendon tissue even, the convenience of the wearing to establish and the operation of the ke shi needle of still being convenient for in addition.

The distance between the end of the first caliper body head 101 and the hinge 400 is r, when the sleeve is far away from the end of the first caliper body head 101, the telescopic piece 300 contracts, when the sleeve is close to the end of the first caliper body head 101, the telescopic piece 300 lengthens, and when the two caliper heads are closed, the length of the telescopic piece 300 is greater than the distance from the rotation fulcrum 500 to the end of the second caliper body head 201; in this way, the distance between the hinge 400 and the end of the second forceps head 201 and the distance between the hinge 400 and the rotation fulcrum 500 are kept to be constant r values by extending and shortening the telescopic member 300, so that the positioning accuracy of the kirschner wire is ensured.

The extensible member 300 comprises a front extensible rod 301 and a rear extensible rod 302 which are parallel to each other, one end of the front extensible rod 301 and one end of the rear extensible rod 302 are hinged to a rotating fulcrum 500, the other end of the front extensible rod 301 and the other end of the rear extensible rod 302 are fixedly connected with the outer side of a sleeve, the first pliers body 100 is connected with the sleeve through the front extensible rod 301 and the rear extensible rod 302, the connecting stability is better, and the guide pliers are firm and durable.

The front telescopic rod 301 and the rear telescopic rod 302 are both provided with a fixed section 3031 and a telescopic section 3041, an insertion hole for the telescopic section 3041 to penetrate through is arranged in the fixed section 3031, one end of the telescopic section 3041, which is far away from the sleeve, is arranged in the insertion hole, the telescopic section 3041 can extend or shorten relative to the fixed section 3031, and when the front telescopic rod 301 and the rear telescopic rod 302 are extended to the extreme position, one end of the telescopic section 3041 is still arranged in the insertion hole of the fixed section 3031; thus, the stretching and shortening functions are realized, the fixed section 3031 and the telescopic section 3041 are prevented from being separated and separated, the structure is simple, and the manufacture is simple and convenient.

The ends of the first forceps handle 102 and the first forceps handle 202 are provided with finger ring buckles 700, and one ends of the finger ring buckles 700 far away from the hinge 400 are bent outwards for easy grasping.

The inner sides of the ends, away from the hinge 400, of the first forceps body forceps handle 102 and the first forceps body forceps handle 202 are both provided with a positioning buckle 800, the positioning buckle 800 and the finger ring buckle 700 are on the same plane, and after the position of the kirschner wire is set, the two positioning buckles 800 can be buckled at a proper position, so that the set position can be kept unchanged, and operation errors are prevented.

Two location buckles 800 are upper and lower incisor cooperation structure, simple structure, and the practicality is strong.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The Kirschner wire guide forceps are accurately positioned and are characterized by comprising a first forceps body, a second forceps body and a telescopic piece, wherein the first forceps body and the second forceps body are connected through a hinge piece, the hinge piece divides the first forceps body and the second forceps body into a forceps handle and a forceps head respectively, and the length from the end part of the forceps head of the second forceps body to the hinge piece is r; one end of the telescopic piece is hinged with the end part of the tong head of the second tong body, the other end of the telescopic piece is hinged on the tong handle of the first tong body to form a rotating fulcrum, and the distance between the rotating fulcrum and the hinged piece is also r; the end part of the telescopic piece is provided with a sleeve for guiding the Kirschner wire, and the sleeve is close to the end part of the forceps head of the second forceps body and is perpendicular to the telescopic piece.

2. The k-wire guide clamp with accurate positioning as claimed in claim 1, wherein the sleeve is provided with a through hole for the k-wire to pass through, and the through hole is arranged along the axial direction of the sleeve and is perpendicular to the telescopic piece.

3. The precision placement K-wire guide clamp of claim 2 wherein said through bore is cylindrical and has a diameter greater than the diameter of said K-wire.

4. The precision positioned k-wire guide forceps according to claim 3, wherein the k-wire has a length greater than the length of the through bore.

5. The kirschner wire guide clamp with accurate positioning according to any one of claims 1 to 4, wherein the distance between the end of the binding clip of the first clamp body and the hinge is r, when the sleeve is far away from the end of the binding clip of the first clamp body, the telescopic piece is contracted, when the sleeve is close to the end of the binding clip of the first clamp body, the telescopic piece is elongated, and when the two binding clips are closed, the length of the telescopic piece is larger than the distance between the rotation fulcrum and the end of the binding clip of the second clamp body.

6. The kirschner wire guide clamp with accurate positioning of claim 5, wherein the telescopic member comprises a front telescopic rod and a rear telescopic rod which are parallel to each other, one end of the front telescopic rod and the rear telescopic rod is hinged with the rotation fulcrum, and the other end of the front telescopic rod and the rear telescopic rod is fixedly connected with the outer side of the sleeve.

7. The kirschner wire guide forceps with accurate positioning according to claim 6, wherein the front telescopic rod and the rear telescopic rod respectively comprise a fixed section and a telescopic section, a jack for the telescopic section to penetrate is arranged in the fixed section, one end of the telescopic section, which is far away from the sleeve, is arranged in the jack, and the telescopic section can extend or shorten relative to the fixed section.

8. Accurately positioned K-wire guide pliers according to any one of claims 1 to 4 wherein the ends of the two handles remote from the hinge are bent outwardly to form finger loops for gripping.

9. The kirschner wire guide forceps with accurate positioning according to claim 8, wherein the insides of the ends of the two forceps handles far away from the hinge are provided with positioning buckles, and the positioning buckles and the finger rings are buckled on the same plane.

10. The k-wire guide forceps with precise positioning as claimed in claim 9, wherein the two positioning buckles are of an upper and lower incisor mating structure.