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Bidirectional forcing sleeve nail for restoration fixation

A technology of two-way pressurization and pressurized sleeves, applied in fixers, medical science, internal bone synthesis, etc., can solve problems such as fracture, lag screw fixation looseness, etc., to improve the quality of surgery, relieve pain, and improve treatment effects Effect

Inactive Publication Date: 2014-12-24
张英泽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology helps stabilizing fractures with compression plates made up of multiple parts connected together like rods joined at their ends called joints between them. By inserting one part of these components along its way, they help keep everything stable during use while reducing pressure on other areas around them. These devices have been developed over time but there may still exist issues where this method cannot work properly due to factors such as weariness or accidentally breaking down some component(s).

Problems solved by technology

This patented technical problem addressed in this patents relates to reducing or fixing bone fractured due to impacted vehicles during medical procedures for orthopedic purposes. Current devices may be insufficient at preventing these types of issues while still being effective but they require multiple steps before achieving their desired effectiveness.

Method used

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  • Bidirectional forcing sleeve nail for restoration fixation
  • Bidirectional forcing sleeve nail for restoration fixation
  • Bidirectional forcing sleeve nail for restoration fixation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The invention consists of two parts: a bidirectional screw 1 and a compression sleeve 2.

[0018] figure 1 , 2 It is shown that the screw of the two-way screw 1 is a variable-diameter screw. The diameter of the front screw 3 of the two-way screw 1 is larger than the diameter of the rear screw 4. There are threads on the front screw 3 and the rear screw 4, respectively. The tail end is an outer hexagon structure 5.

[0019] figure 1 , 2 It is shown that the length of the front screw 3 of the bidirectional screw 1 is 0.5-0.75 of the full length of the screw, and the length of the rear screw 4 is 0.25-0.50 of the full length of the screw.

[0020] figure 1 , 2 It is shown that the thread length of the rear screw 4 of the bidirectional screw 1 is the entire length of the rear screw 4 or 1 / 2-2 / 3 of the rear screw 4, and the unthreaded section is located at the connection with the front screw 3.

[0021] figure 1 , 2 It is shown that the rear screw 4 of the two-way screw 1 has a thre...

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PUM

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Abstract

A bidirectional forcing sleeve nail for restoration fixation belongs to the technical field of orthopedic operation instruments and is used for restoring and fixing fracture dislocation. The technical scheme is that threads are arranged on a front portion screw rod and a rear portion screw rod of a bidirectional screw, the sleeve body of a forcing sleeve is vertically welded to the plane of a base, an internal thread is formed on the inner wall of the sleeve body and matched with the external thread of the rear portion screw rod, and a through hole is formed in the plane of the base. In restoration fixation, the front portion screw of the bidirectional screw is screwed to achieve a lag screw function to partially restore the fracture portion, then the tail end of the bidirectional screw is sleeved by the sleeve body to rotate to drive the base to force the inner side, the front end of the bidirectional screw can draw skeleton to the outer side, and the two sides are forced to restore the fracture portion. The bidirectional forcing sleeve nail for restoration fixation is simple in structure and convenient to operate. After restoration fixation, the sleeve nail is not prone to loosening and being broken, and the fracture portion can achieve stable restoration fixation. Thus, the operation quality and the treating effect are improved. The bidirectional forcing sleeve nail for restoration fixation can be good substitute products for lag screws which are utilized at present.

Description

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Claims

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Application Information

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Owner 张英泽
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