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Two-part anchor with anchor inserter

A plug-in and plug-in technology, applied in the field of two-part anchors with anchor plug-ins, can solve problems such as endangering the stability of the fixing system

Inactive Publication Date: 2017-08-01
SMITH & NEPHEW INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some revision procedures, fixation strength can be reduced to unacceptably low levels, compromising the stability of fixation systems using relatively small anchors

Method used

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  • Two-part anchor with anchor inserter
  • Two-part anchor with anchor inserter
  • Two-part anchor with anchor inserter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Examples of anchors and anchor plug-ins of the present disclosure will now be discussed with reference to the figures.

[0025] In the following description, similar components are given the same reference numerals regardless of whether they are shown in different examples. In order to illustrate examples in a clear and concise manner, the drawings are not necessarily to scale and certain features may be shown in somewhat schematic form. Features described and / or illustrated with respect to one example may be used in one or more other examples in the same or similar manner and / or instead of or in combination with features of other examples.

[0026] Comprising, comprising, and / or their respective plural forms are open-ended and include the listed parts and may include additional non-listed parts. and / or is open-ended and includes one or more of the listed parts and combinations of the listed parts.

[0027] refer to Figures 1A-1B , shows a conventional suture anchor 10...

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PUM

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Abstract

Disclosed herein are embodiments of a no-hole-preparation suture anchor including a tubular anchor body, a tapered tip coupled to the anchor body, an eyelet extending transversely through the anchor, and a plurality of longitudinal ribs extending along at least a portion of the anchor length. The material of the tapered tip is harder than that of the anchor body to facilitate insertion. An anchor inserter for use in combination with the suture anchor includes an elongated, tubular shaft defining a cannulation extending between a proximal end and a distal end. A plurality of tines extends distally from the distal end of the shaft. The anchor includes a plurality of longitudinally extending slots, dimensioned to receive respective ones of the inserter tines. The slots extend along the length of the anchor body and continue into the proximal end of the tubular shaft of the distal tip. The circumferential position of each of the slots is further selected such that the slots are circumferentially adjacent to, but do not intersect, the eyelet.

Description

technical field [0001] Anchors are commonly used in surgery to secure sutures at desired locations on a patient's bone. For example, the anchor is inserted into tissue at a desired location, and frictional sliding resistance between the anchor and surrounding tissue resists movement of the suture anchor to secure the anchor in place. Frictional sliding resistance is primarily determined by the normal force (ie, residual compression) applied by tissue to the anchor surface and the contact area to which bone exerts a normal force. Thus, in general, the fixation strength of an anchor inserted into tissue (a measure of the pull-out force to remove a suture anchor from tissue) increases with both normal force and contact area. Background technique [0002] A class of anchors, commonly referred to as "no-hole-preparation" anchors, deposits within tissue without forming a hole prior to anchor deposition. Currently developed anchors include a distal tip that pierces tissue and cle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/04
CPCA61B17/0401A61B17/0485A61B2017/0403A61B2017/0409A61B2017/0412A61B2017/0414A61B2017/042A61B2017/0435A61B2017/0437A61L31/02A61L31/04
Inventor M.E.豪斯曼N.N.帕特尔M.E.科斯基H.帕特尔M.J.巴尔博厄
Owner SMITH & NEPHEW INC