CN211094632U

CN211094632U - Intramedullary kirschner wire guiding locking device

Info

Publication number: CN211094632U
Application number: CN201920561516.1U
Authority: CN
Inventors: 谢庆平
Original assignee: Hangzhou Qiushi Hospital Co ltd
Current assignee: Hangzhou Qiushi Hospital Co ltd
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2020-07-28
Anticipated expiration: 2029-04-23

Abstract

The utility model discloses an intramedullary kirschner wire direction locking ware, including the body, the body surface is equipped with the screw thread, and body central authorities are equipped with the guide hole that is used for holding kirschner wire, and the front end of guide hole is equipped with the guide board with body structure, and the guide board is the frustum form, and the guide inboard surface leanin, and the base mid point of guide inboard surface meets with the border of above-mentioned guide hole, the utility model discloses an in the marrow the needle of inserting department set up the direction locking ware, twist the direction locking ware admittedly on the skeleton of needle of inserting department through the screw thread, guarantee the stable propulsion and the depth angle of kirschner wire at the internal fixation in-process of long diaphysis fracture, improve the accuracy and the stability of needle of inserting control, have better treatment.

Description

Intramedullary kirschner wire guiding locking device

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an accurate guide needle insertion direction, prevent that the backshank needle from breaking away from and dispersing the intramedullary ke shi needle direction locking device of backshank needle pressure.

Background

The intramedullary kirschner wire is used as an internal implant and has the characteristics of small epiphyseal growth influence, convenient operation and the like, because the intramedullary kirschner wire is usually deformed in different degrees due to the problems of needle inserting angles and the like when being placed in the long diaphyses, the intramedullary kirschner wire is difficult to control or deviate, the accuracy of needle inserting is poor, and meanwhile, the tail of the needle is easy to press bones, so that side damage is caused, and the treatment effect is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problems existing in the prior art; provides an intramedullary kirschner wire guide locking device which can accurately guide the needle inserting direction, prevent the needle tail from being separated and disperse the pressure of the needle tail.

In order to solve the technical problem, the utility model mainly adopts the following technical proposal:

the utility model discloses an intramedullary kirschner wire direction locking ware arranges the skeleton in for guide intramedullary kirschner wire, the direction locking ware includes the body, the body surface is equipped with the screw thread, and body central authorities are equipped with the guide hole that is used for holding kirschner wire, the front end of guide hole is equipped with the guide board with body structure, the guide board is the frustum form, and guide board medial surface leanin, the base mid point of guide board medial surface meets with the border of above-mentioned guide hole, adopts the needle feeding department of kirschner wire in the marrow to set up the direction locking ware, screws the direction locking ware through the screw thread on the skeleton of needle feeding department admittedly, guarantees the stable propulsion and the depth angle of kirschner wire in the internal fixation process of long bone shaft fracture, improves the accuracy and the stability of needle feeding control, has better treatment.

Preferably, the inner side surface of the guide plate is provided with a vertical guide groove, the cross section of the guide groove is semicircular and corresponds to the guide hole, the middle point of the bottom end edge of the guide groove is connected with the edge of the guide hole, and the guide groove can more accurately guide the depth direction and the angle of the Kirschner wire.

Preferably, the guide hole is of a two-section structure, the upper section of the guide hole is circular and is matched with the intramedullary kirschner wire, the lower section of the guide hole is regular hexagon and is matched with the tail of the intramedullary kirschner wire, the lower section of the guide hole is used for accommodating the tail of the kirschner wire, and the lower section of the guide hole with a larger diameter is used for accommodating and locking the tail of the intramedullary kirschner wire, so that the tail of the kirschner wire cannot press bones, and the tail of the kirschner wire can be trimmed.

Preferably, the inner side surface of the guide plate has an inclination angle of 15 °.

Preferably, the guiding lock is made of titanium alloy, stainless steel or biodegradable material.

Preferably, the bottom of the body is provided with a stage, the side surface of the stage is provided with an angle scale, the stage is attached to the surface of the skin to be used as a positioning guide of the guide locker, and the angle scale can be used for guiding the adjustment of the torsion angle of the plate.

The utility model has the advantages that: the guiding locking device is arranged at the needle inserting position of the intramedullary kirschner wire, the guiding locking device is screwed and fixed on a skeleton at the needle inserting position through threads, the stable propulsion and the depth angle of the kirschner wire are ensured in the internal fixation process of the long diaphyseal fracture, the accuracy and the stability of needle inserting control are improved, the compression of the tail part of the kirschner wire on the skeleton is dispersed, the pain of a patient is relieved, and the intramedullary kirschner wire has a better treatment effect.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic cross-sectional view of the structure of fig. 1.

In the figure, 1, a body, 2, guide holes, 3, a guide plate, 4, a guide groove and 5, stages.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): the intramedullary kirschner wire guiding and locking device of the embodiment is arranged on a bone and used for guiding an intramedullary kirschner wire, as shown in figure 1 and figure 2, the guiding and locking device comprises a body 1 made of titanium alloy, the outer surface of the body is designed with screw threads and can be directly screwed on the bone at the needle insertion position, the center of the body is designed with a guide hole 2, the guide hole is of a reducing structure, the diameter of the upper part of the guide hole is matched with the intramedullary kirschner wire and is used for accommodating the intramedullary kirschner wire, the diameter of the lower part of the guide hole is larger than that of the upper part of the guide hole and is used for accommodating and locking the tail part of the intramedullary kirschner wire, the front end of the guide hole is designed with a guide plate 3 which is of an integral structure with the body, the guide plate is of a frustum shape, the inner side surface of the guide plate is inclined inwards, the inner inclination angle, the bottom of the body is provided with a stage 5 for being positioned on the surface of the skin in a fitting manner, and the side surface of the stage is provided with an angle reticle for controlling the torsion angle of the guide plate.

When the guiding device is used, the guiding locker is screwed on the skeleton at the insertion position of the Kirschner wire and is attached to the surface of the skin, the torsion angle of the guiding plate is adjusted according to the angle line on the body, the intramedullary Kirschner wire is driven into the marrow of the long diaphysis along the guiding of the guiding groove, when the distal end of the Kirschner wire reaches the corresponding position, the tail part of the Kirschner wire is trimmed by the Kirschner scissors and is embedded and locked in the lower section of the guiding hole, and the internal fixation of the long diaphysis fracture is completed.

In the description of the present invention, the technical terms "upper", "lower", "front", "rear", "left", "right", "longitudinal", "horizontal", "inner", "outer" and the like indicate the direction or the position relationship based on the direction or the position relationship shown in the drawings, and the technical solution of the present invention is only for the convenience of description and understanding, and the above description is not limiting to the present invention, the present invention is not limited to the above description, and the changes, modifications, additions or replacements made by the ordinary skilled in the art within the essential scope of the present invention should be regarded as the protection scope of the present invention.

Claims

1. An intramedullary k-wire guide lock for placement on a bone for guiding an intramedullary k-wire, comprising: the guiding locking device comprises a body (1), wherein the outer surface of the body is provided with threads, the center of the body is provided with a guide hole (2) for accommodating a Kirschner wire, the front end of the guide hole is provided with a guide plate (3) which is integrated with the body into a whole, the guide plate is in a frustum shape, the inner side surface of the guide plate inclines inwards, and the middle point of the bottom edge of the inner side surface of the guide plate is connected with the edge of the guide hole.

2. The intramedullary k-wire guide lock of claim 1, wherein: the guide board (3) inboard is equipped with vertical guiding groove (4) on the side, the cross-section of guiding groove is semicircle form and corresponds above-mentioned guide hole, and the mid point and the above-mentioned guide hole border of guiding groove bottom border meet.

3. The intramedullary k-wire guide lock of claim 1 or 2, wherein: the guide hole (2) is of a two-section structure, the section of the upper section of the guide hole is circular and is matched with the intramedullary Kirschner wire, the section of the lower section of the guide hole is regular hexagon and is matched with the tail part of the intramedullary Kirschner wire, and the lower section of the guide hole is used for accommodating the tail part of the Kirschner wire.

4. The intramedullary k-wire guide lock of claim 3, wherein: the inner inclination angle of the inner side surface of the guide plate (3) is 15 degrees.

5. The intramedullary k-wire guide lock of claim 1, wherein: the guiding locking device is made of titanium alloy.

6. The intramedullary k-wire guide lock of claim 1, wherein: the bottom of the body is provided with a stage (5), and the side surface of the stage is provided with an angle scribing line.