External fixing rack for hip fracture

An external fixator and hip technology, which is applied to external fixators, fixators, etc., can solve the problems of large trauma, coxa varus, insufficient sliding and prying range, etc., and achieves less surgical trauma, preventing coxa varus, and locking effects. Good results

Inactive Publication Date: 2012-12-12
丁真奇 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In clinical application, the traditional hip fracture external fixator has the following shortcomings: 1. It is bulky; 2. It lacks sufficient sliding and prying effect, which often leads to the occurrence of coxa varus; 3. The trauma is often large...

Method used

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  • External fixing rack for hip fracture
  • External fixing rack for hip fracture
  • External fixing rack for hip fracture

Examples

Experimental program
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Effect test

Embodiment Construction

[0037] The frontal structure of an embodiment of the external fixator for hip fracture of the present invention, such as figure 1 shown. The external fixator for hip fracture has an upper fixation handle 1, a lower fixation handle 2, a drive shaft 3, a circular gear 4, a universal joint 5, a spacer 61, a top screw 62, a nut 63, a joint nut 64, and an extension arm 7, fine bone screw 8 and thick tooth bone screw 9 (and other parts.

[0038] Please see figure 2 and image 3 : the upper fixed handle 1 is a plate-shaped body whose head 11 is much larger in size than the lower part 12, and the head 11 is a disc; the lower part 12 is straight. The head 11 of the upper fixed handle 1 is inclined to the proximal side relative to the upright lower part 12. The center of the head 11 is provided with a central universal joint hole 113, and four universal joints are evenly distributed around the central universal joint hole 113. Hole 112. In other embodiments, at least two universal...

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PUM

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Abstract

The invention provides an external fixing rack for hip fracture, and relates to an instrument for orthopedic external fixation treatment. The external fixing rack for hip fracture is provided with two fixing handles penetratingly fixed with bone screws; at least two universal joints are arranged at the head of the upper fixing handle, the angle between each universal joint and the head of the upper fixing handle can be changed, and each universal joint is penetratingly fixed with one bone screw; at least one universal joint is arranged on the lower portion of the lower fixing handle, the angle between each universal joint and the head of the upper fixing handle can be changed, and each universal joint is penetratingly fixed with one bone screw; and the upper portion of the lower fixing handle is slidably sleeved in a guide groove on the lower portion of the upper fixing handle and is fixed in the guide groove by a jackscrew arranged on the lower portion of the upper fixing handle. The external fixing rack can be used for external fracture reduction repeatedly, has a good and sufficient sliding prizing effect, can effectively maintain the proximal end of the fractured hip of a patient at an external unfolded position, is flexible and various in adjustment mode, and is applicable to complex fracture conditions.

Description

technical field [0001] The invention relates to an instrument for orthopedic external fixation surgery. Background technique [0002] Surgical treatment of hip fractures is currently mainly based on internal fixation. For elderly patients with hip fractures and osteoporosis, the bone has insufficient holding force on the bone screws, coxa varus, shortening of the affected limb, medial displacement of the distal segment of the fracture, and cutting of the lag screws after internal fixation The incidence of complications such as cortical bone screw pullout is greatly increased, which can easily lead to the failure of internal fixation. For patients with hip fractures that are difficult to treat with internal fixation, the use of hip external fixators has certain advantages. In clinical application, the traditional hip fracture external fixator has the following disadvantages: 1. It is bulky; 2. It lacks sufficient sliding and prying effect, which often leads to the occurrenc...

Claims

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Application Information

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IPC IPC(8): A61B17/66
Inventor 丁真奇林志雄
Owner 丁真奇
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