CN218943491U

CN218943491U - Universal aiming instrument for intramedullary nail

Info

Publication number: CN218943491U
Application number: CN202222407296.1U
Authority: CN
Inventors: 蒋惠江; 陶韦涛
Original assignee: Jiangsu Aiweikang Medical Device Technology Co ltd
Current assignee: Jiangsu Aiweikang Medical Device Technology Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-05-02
Anticipated expiration: 2032-09-09

Abstract

The utility model relates to the technical field of medical instruments and discloses an intramedullary nail universal aiming instrument which comprises an aiming structure, wherein a universal connector is arranged outside the aiming structure, the aiming structure comprises a femoral intramedullary nail, one section of the femoral intramedullary nail is provided with a handle, the other end of the handle is provided with a proximal fixing device, the outer side wall of the proximal fixing device is provided with a rod I, the other end of the rod I is provided with a rod II, the other end of the rod II is provided with a locking nail sleeve, and the top of the locking nail sleeve is provided with a drill bit sleeve. The intramedullary nail universal aiming instrument can control the degrees of freedom in a plurality of planes by using one or a plurality of universal connectors similar to a fixable hinge, can realize the general matching of the space angle hole sites at the far end, and increases the convenience of operation and production.

Description

Universal aiming instrument for intramedullary nail

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an intramedullary nail universal aiming instrument.

Background

The existing intramedullary nail aiming instrument can only be used for one set of instrument corresponding to one intramedullary nail, the spatial angle hole position of the far end of the intramedullary nail cannot be matched in the clinical use process, and the intramedullary nail aiming instrument needs to be connected with a complicated mechanical framework for aiming, so that the complexity in the clinical use process is increased, the complexity in the processing process is increased, and the intramedullary nail universal aiming instrument is provided for solving the problems mentioned in the background.

Disclosure of Invention

The present utility model aims to provide an intramedullary nail universal aiming device to solve the problems in the prior art.

In order to solve the technical problems, the utility model provides the following technical scheme: the intramedullary nail universal aiming instrument comprises an aiming structure, wherein a universal connector is arranged outside the aiming structure;

the sighting structure comprises a femoral intramedullary nail, a handle is arranged on one section of the femoral intramedullary nail, a proximal end fixing device is arranged at the other end of the handle, a first rod is arranged on the outer side wall of the proximal end fixing device, a second rod is arranged at the other end of the first rod, a locking nail sleeve is arranged at the other end of the second rod, and a drill bit sleeve is arranged at the top of the locking nail sleeve;

the universal connector comprises an adjusting lock nut, an upper clamping block is arranged at the bottom of the adjusting lock nut, a spring is arranged at the bottom of the upper clamping block, a lower clamping block is arranged at the bottom of the spring, a connecting bolt is arranged at the bottom of the lower clamping block, and a gasket is arranged between the upper clamping block and the lower clamping block.

The femoral intramedullary nail is connected with the handle through a head hanging bolt, the handle is connected with the proximal end fixing device through a locating pin and a hanging bolt, the proximal end fixing device is connected with the rod I through an anti-rotation groove and a buckle, the rod I is connected with the rod II through a universal connector, the rod I and the rod II are free to move in planes, to a proper angle, the locking nail sleeve is connected with the drill bit sleeve, and after being located through the universal connector, the locking nail sleeve is fixed to a proper position and then locked.

Preferably, the first rod is mutually clamped with the upper clamping block, and the second rod is mutually clamped with the connecting bolt.

Compared with the prior art, the utility model has the following beneficial effects:

first, the present utility model utilizes one or more universal connectors, similar to a fixable hinge, which can control degrees of freedom in multiple planes, can achieve a universal fit to the distal spatial angle hole site, and increases the convenience of surgery and production.

Drawings

FIG. 1 is a schematic view of the front view of the aiming structure of the present utility model;

FIG. 2 is a schematic top view of the aiming structure of the present utility model;

fig. 3 is a schematic view of the front view of the universal connector according to the present utility model.

Wherein: 1. an aiming structure; 101. femoral intramedullary nails; 102. a handle; 103. a proximal fixation device; 104. a first rod; 105. a second rod; 106. a locking pin sleeve; 107. a drill sleeve; 2. a universal connector; 201. adjusting the lock nut; 202. an upper clamping block; 203. a spring; 204. a lower clamping block; 205. a connecting bolt; 206. a gasket.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, an intramedullary nail universal aiming instrument comprises an aiming structure 1, wherein a universal connector 2 is arranged outside the aiming structure 1;

the aiming structure 1 comprises a femoral intramedullary nail 101, wherein one section of the femoral intramedullary nail 101 is provided with a handle 102, the other end of the handle 102 is provided with a proximal end fixing device 103, the outer side wall of the proximal end fixing device 103 is provided with a first rod 104, the other end of the first rod 104 is provided with a second rod 105, the other end of the second rod 105 is provided with a locking nail sleeve 106, and the top of the locking nail sleeve 106 is provided with a drill bit sleeve 107;

the universal connector 2 comprises an adjusting lock nut 201, an upper clamping block 202 is arranged at the bottom of the adjusting lock nut 201, a spring 203 is arranged at the bottom of the upper clamping block 202, a lower clamping block 204 is arranged at the bottom of the spring 203, a connecting bolt 205 is arranged at the bottom of the lower clamping block 204, and a gasket 206 is arranged between the upper clamping block 202 and the lower clamping block 204.

Through the technical scheme, the femoral intramedullary nail 101 is connected with the handle 102 through the head hanging bolt, the handle 102 is connected with the proximal fixing device 103 through the locating pin and the hanging bolt, the proximal fixing device 103 is connected with the rod I104 through the anti-rotation groove and the buckle, the rod I104 is connected with the rod II 105 through the universal connector 2, the rod I104 and the rod II 105 freely move in the plane, the locking nail sleeve 106 is connected with the drill sleeve 107 to a proper angle, and the locking device is fixed to a proper position and then locked after being positioned through the universal connector 2.

Specifically, rod one 104 engages with upper clamp block 202 and rod two 105 engages with connecting bolt 205.

Through the technical scheme, the effect of adjusting the alignment of the locking pin sleeve 106 and the femoral intramedullary nail 101 is achieved by flexibly adjusting the angles of the upper clamping block 202 and the lower clamping block 204, and the locking pin is convenient and quick.

In use, the first rod 104 and the second rod 105 are connected by the universal connector 2, and are free to move in the planes of the first rod 104 and the second rod 105 to a proper angle, and the locking pin sleeve 106 is connected with the drill sleeve 107, is positioned by the universal connector 2, and is fixed in a proper position and locked.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. Universal sighting instrument of intramedullary nail, including sighting structure (1), its characterized in that: the external part of the aiming structure (1) is provided with a universal connector (2);

the sighting structure (1) comprises a femoral intramedullary nail (101), a handle (102) is arranged on one section of the femoral intramedullary nail (101), a proximal fixing device (103) is arranged at the other end of the handle (102), a first rod (104) is arranged on the outer side wall of the proximal fixing device (103), a second rod (105) is arranged at the other end of the first rod (104), a locking nail sleeve (106) is arranged at the other end of the second rod (105), and a drill sleeve (107) is arranged at the top of the locking nail sleeve (106);

the universal connector (2) comprises an adjusting lock nut (201), an upper clamping block (202) is arranged at the bottom of the adjusting lock nut (201), a spring (203) is arranged at the bottom of the upper clamping block (202), a lower clamping block (204) is arranged at the bottom of the spring (203), a connecting bolt (205) is arranged at the bottom of the lower clamping block (204), and a gasket (206) is arranged between the upper clamping block (202) and the lower clamping block (204).

2. The intramedullary nail universal aiming instrument according to claim 1, wherein: the first rod (104) is mutually clamped with the upper clamping block (202), and the second rod (105) is mutually clamped with the connecting bolt (205).