Eptfe high strength sutures
AssigneeZeus Co., Ltd.
InventorsAlexandra Younan, Nancy D. Roberts, Sean Harley, Shawkat Abdelhaq
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Abstract
Expanded polytetrafluoroethylene (ePTFE) monofilaments with superior knot pull tensile strength are described herein, which can be used as sutures and in medical devices such as for tethers and anchors for cardiac repair. The properties of these monofilaments balance the need for an inert, soft, lubricious and porous material with sufficient tensile properties for high strength applications.
Claims25
A non-absorbable, monofilament suture comprising expanded polytetrafluoroethylene (“ePTFE”), wherein:
- the non-absorbable, monofilament suture has a non-contact outer diameter (“OD”) of 0.016 inches or less, and an average knot pull strength in lbf, divided by the OD (“AKP/OD”), of 3884 or greater;
- and/or
- the non-absorbable, monofilament suture has a non-contact outer diameter (“OD”) of 0.018 inches or less, and an average straight pull strength in lbf, divided by the OD (“ASP/OD”), of 400 or greater.
A non-absorbable, monofilament suture comprising expanded PTFE (“ePTFE”), selected from the group consisting of:
- a non-absorbable, monofilament suture comprising ePTFE with a USP diameter of 5-0 and a knot pull strength of at least 3.0 lbf or at least 3.2 lbf;
- a non-absorbable, monofilament suture comprising ePTFE with a USP diameter of 4-0 and a knot pull strength of at least 4.8 lbf;
- a non-absorbable, monofilament suture comprising ePTFE with a USP diameter of 3-0 and a knot pull strength of at least 6 lbf or at least 7 lbf;
- a non-absorbable, monofilament suture comprising ePTFE with a USP diameter of 2-0 and a knot pull strength of at least 7 lbf or at least 8 lbf;
- a non-absorbable, monofilament suture comprising ePTFE with a USP diameter of 0 and a knot pull strength of at least 9 lbf, at least 10 lbf, or at least 11 lbf;
- and
- a non-absorbable, monofilament suture comprising ePTFE with a USP diameter of 1 and a knot pull strength of at least 13 lbf or at least 14 lbf.
A non-absorbable, monofilament suture comprising expanded PTFE (“ePTFE”), selected from the group consisting of:
- a non-absorbable, monofilament suture comprising ePTFE with a USP diameter of 5-0 and a knot pull strength of at least 3.0 lbf or at least 3.2 lbf;
- and
- a non-absorbable, monofilament suture comprising ePTFE with a USP diameter of 3-0 and a knot pull strength of at least 6 lbf or at least 7 lbf.
Dependencies are inferred from the claim text.