Shape memory filament for suture management

Title: Shape memory filament for suture management

Brief Patent Description - Full Patent Description - Patent Claims

The Patent Description & Claims data below is from USPTO Patent Application 20080086147, Shape memory filament for suture management.

1. A system, comprising:a percutaneous delivery subsystem including a tissue-penetrating member defining an axial longitudinal channel having an internal longitudinal cross-section with said channel including a first longitudinal opening and a second longitudinal opening; anda member of a rigid flexible elastic material, said member including a body portion and an aperture portion with said member adapted for delivery through said axial longitudinal channel, said aperture portion including an expanded mode having a lateral dimension greater than a greatest width of said internal longitudinal cross-section when said aperture portion extends outside said channel and a collapsed mode wherein said lateral dimension is not greater than said greatest width of said channel when said aperture portion is within said channel, with said aperture portion transitioning from said expanded mode to said collapsed mode when inserted into said openings and said aperture transitioning from said collapsed mode to said expanded mode when exiting from said openings.

2. The system of claim 1 wherein said percutaneous delivery subsystem includes a spinal needle with an internal nominal inside diameter no larger than about eighteen gauge.

3. The system of claim 1 wherein said portion of said rigid flexible elastic member includes a filament of a shape memory material.

4. The system of claim 3 wherein said percutaneous delivery subsystem includes a spinal needle with an internal nominal inside diameter no larger than about eighteen gauge.

5. A method, the method comprising:a) installing a suture anchor with an attached suture strand in a portion of body adjacent a section of tissue to be secured within a body;b) piercing percutaneously said tissue with a sharp distal end of a spinal needle having a channel extending from said sharp distal end to a proximal end outside said body;c) inserting a member into an end of said spinal needle, said member including a body portion and an aperture portion with said member adapted for delivery through said channel, said aperture portion including an expanded mode having a lateral dimension greater than an inner diameter of said channel when said aperture portion extends outside said channel and a collapsed mode wherein said lateral dimension is not greater than said inner diameter of said channel when said aperture portion is within said channel, said aperture portion transitioning from said expanded mode to said collapsed mode when inserted into said ends and said aperture transitioning from said collapsed mode to said expanded mode when exiting from said ends;d) deploying said aperture portion from said sharp distal end;e) capturing said suture strand with said aperture portion; andf) passing said captured suture strand through said tissue by retracting said aperture portion through said tissue.

6. A method for repairing a superior labrum anterior to posterior tear, the method comprising:a) installing a posterior portal into a shoulder proximate the superior labrum;b) installing a suture anchor at about a forty-five degree angle into a glenohumeral joint of said shoulder, said suture anchor including at least one suture;c) inserting percutaneously a needle into said shoulder, said needle adjacent a lateral acromion and passing through a supraspinutas tendon of said shoulder;d) introducing a suture transport into said glenohumeral joint through a channel of said needle;e) coupling said suture to said suture transport; andf) extracting said suture transport from said shoulder to extend said suture from said anchor outside said shoulder through said supraspinutas tendon.

Brief Patent Description - Full Patent Description - Patent Claims

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Previous Patent Application:
Assemblies for deploying fasteners in tissue and snares for use in such assemblies
Next Patent Application:
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Industry Class:
Surgery

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