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Tibial intramedullary nail opening locator

A technology of a positioner and an inner nail is applied in the field of medical devices, which can solve the problems of inaccurate positioning and troublesome operation, and achieve the effects of good effect, convenient operation and strong practicability.

Inactive Publication Date: 2017-05-10
王晓刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The object of the present invention is to: a tibial intramedullary nail opening locator with accurate positioning and convenient operation, so as to solve the problem of inaccurate positioning and troublesome operation in the prior art

Method used

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  • Tibial intramedullary nail opening locator
  • Tibial intramedullary nail opening locator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1, such as Figure 1~2 Shown:

[0029] The material of the hollow rod 2 is spring steel; when positioning and installing, the conical head 12 extends into the nail hole 16 of the hollow intramedullary nail 15, and the annular groove 11 is installed in the hollow intramedullary nail 15. In the side hole, the forward movement of the round head of the screw 13 generates an outward expansion force for fixing.

[0030] When the present invention is in use, the sleeve 4 is rotated and advanced toward one end of the conical head 12, so that the conical head 12 can be fixed, and the ends of the conical head 12 are compressed inwardly. function, to facilitate the take-out operation of the conical head 12; the setting of the opening groove 17 provides available space for the elastic deformation of the conical head 12; the conical hole 14 and the round head of the screw rod The setting of 13 can facilitate the expansion of the tapered hole 14 by the screw round head 13 w...

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Abstract

The invention relates to the field of medical apparatuses, and in particular to a tibial intramedullary nail opening locator, which comprises an operating disc, a hollow rod, a sleeve and a threaded rod, wherein the interior of the hollow rod is of a hollow structure; a first inner screw thread is arranged on the inner wall of a middle section of the hollow section and a second outer screw thread is arranged on the outer wall of the middle section; the operating disc is arranged at the outer end of the hollow rod; a conical head, which can achieve elastic deformation, is arranged at the other end of the hollow rod; an annular groove is formed between the conical head and the second outer screw thread; the part, close to the conical head, of the interior of the hollow rod is provided with a conical hole; an opening groove is formed outside the conical hole; the sleeve is arranged outside the hollow rod; a second inner screw thread, which is matched with the second outer screw thread, is arranged on the inner wall of the sleeve; the threaded rod is arranged in the hollow rod; a first outer screw thread, which is matched with the first inner screw thread, is arranged on the outer wall of the threaded rod; an operating ring is arranged at the outer end of the threaded rod; and a screw rod round head is arranged at the other end of the threaded rod. The locator provided by the invention is strong in practicability and convenient to operate, and the locator has a relatively good market application prospect.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a tibial intramedullary nail opening locator. Background technique [0002] Intramedullary nailing is one of the effective methods for the treatment of diaphysis fractures. At present, in clinical practice, when the opening end of the intramedullary nail is locked, the relative position is positioned through the aiming frame fixedly connected with the intramedullary nail, and then the opening end of the intramedullary nail is positioned by using the pressure rod used in conjunction with the aiming frame After the positioning is completed, lock the relative position of the pressing rod and the aiming frame, and then drive the screw into the locking hole of the opening end through the aiming mechanism on the side of the aiming frame to complete the locking of the opening end. [0003] Although the method of remote positioning using the pressing rod in the above prior art is classic,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/72A61B17/90
CPCA61B17/7233A61B17/90
Inventor 王晓刚
Owner 王晓刚
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