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Anchor bolt with line

An anchor and wire technology, applied in the directions of nails, U-shaped nails, surgical fixation nails, etc., can solve the problems of stress concentration and insufficient pulling force, and achieve the effects of stress dispersion, good adjustment control, and multiple bone contact.

Active Publication Date: 2018-08-17
SHANGHAI KINETIC MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a threaded anchor, which can solve the defects in the prior art such as insufficient pulling force and excessive stress concentration

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] See figure 1 , the anchor with wire in this embodiment includes an anchor main body 1 and two support wings 21, 22, and the two support wings are arranged at the tail end of the anchor main body 1; the anchor main body 1 is corresponding to The positions of the two supporting wings 21, 22 are respectively provided with grooves 11, 12; please refer to figure 2 , the proximal end of each support wing 21 or 22 is welded with a wire through the support wing main body so that the support wing is pivotally connected in the corresponding groove 11 or 12, and each support wing 21 or 22 By rotating around the pivot, its distal end can protrude from the groove 11 or 12 or enter the groove 11 or 12; and, the distal end of each support wing 21 or 22 is provided with a threading hole 1 211 Or 221; the two support wings 21 and 22 are arranged oppositely.

[0035] Please refer to Figure 1-Figure 3 , the anchor main body 1 includes an integral nail head 1a, a nail body 1b and a na...

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PUM

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Abstract

The invention discloses an anchor bolt with a line. The anchor bolt comprises an anchor bolt body and two supporting wings, and the two supporting wings are arranged at the tail end of the anchor boltbody; grooves are formed in the positions, corresponding to the two supporting wings, of the anchor bolt body respectively; the near end of each supporting wing is pivoted in the corresponding groove, and each supporting wing can rotate around the pivot to enable the far end of the supporting wing to extend out of the groove or enter the groove; each supporting wing is provided with a first threading hole, and the two supporting wings are oppositely arranged. The anchor bolt with the line is provided with the supporting wings, and the supporting wings are expanded and fixed under the action of drawing force generated by a surgeon or movement after the anchor bolt with the line is implanted so that the drawing force can be better adjusted and controlled.

Description

technical field [0001] The invention relates to a medical device, in particular to a soft tissue fixation device for orthopedic surgery, in particular to a self-expanding threaded anchor. Background technique [0002] A wire anchor is a very small implant that can be used wherever soft tissue and bone need to be reattached. Fixed on the anchor, that is, the surface of the bone. Therefore, different from other types of bone fixation, the fusion and fixation between soft tissue and bone is the key to the success of the operation. Only good fixation can meet the requirements of early postoperative exercise, muscle exercise and weight bearing. [0003] Chinese patent document CN104997540A provides a soft tissue fixator for orthopedic surgery, which adopts the design of dense double-segment thread, and the sparse thread section makes the fixer receive less resistance when screwing in, and it is easier to screw in. The dense thread section can make the fixer firmly fixed on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/064
CPCA61B17/0642A61B2017/0648
Inventor 张敬川顾海军
Owner SHANGHAI KINETIC MEDICAL
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