Surgical fastener
First Claim
Patent Images
1. A surgical fastener including:
- a first leg;
a second leg; and
a backspan extending from the first leg to the second leg, the backspan including a central pad with a thickness greater than a thickness of the backspan extending between the central pad and either the first leg or second leg, wherein the surgical fastener is a non- deforming fastener such that the first and second legs are constructed to remain in an open position after deployment of the fastener, and wherein thickness is measured in a direction that is transverse to both a direction the backspan extends and a direction that the legs extend from the backspan; and
wherein the backspan and central pad are monolithically formed, and wherein the central pad protrudes downward past a bottom surface of the backspan.
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Abstract
Various embodiments of a non-deforming surgical fastener are discussed. In one embodiment, the fastener includes two legs and a backspan extending between the two legs. The fastener also includes a backspan thickness that is adapted to reduce the pressure and/or increase the holding strength applied to underlying materials. The non-deforming fastener is constructed and arranged to retain substantially the same shape before, during and after deployment into the target implantation site.
48 Citations
19 Claims
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1. A surgical fastener including:
- a first leg;
a second leg; and
a backspan extending from the first leg to the second leg, the backspan including a central pad with a thickness greater than a thickness of the backspan extending between the central pad and either the first leg or second leg, wherein the surgical fastener is a non- deforming fastener such that the first and second legs are constructed to remain in an open position after deployment of the fastener, and wherein thickness is measured in a direction that is transverse to both a direction the backspan extends and a direction that the legs extend from the backspan; and
wherein the backspan and central pad are monolithically formed, and wherein the central pad protrudes downward past a bottom surface of the backspan. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- a first leg;
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8. A surgical fastener comprising:
- a first leg;
a second leg; and
a backspan extending from the first leg to the second leg, wherein an area of the backspan is selected to apply a pressure to underlying tissue that is greater than or equal to 27.5 kPa and less than or equal to 275 kPa when the surgical fastener is deployed from an associated deployment device with a deployment force that is greater than or equal to 4.4 N and less than or equal to 44 N;
wherein the backspan includes a central pad with a thickness greater than a thickness of a portion of the backspan attached to the central pad, wherein the backspan and central pad are monolithically formed, and wherein the central pad protrudes downward past a bottom surface of the backspan. - View Dependent Claims (9, 10, 11, 12)
- a first leg;
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13. A surgical fastener including:
- a first leg;
a second leg; and
a backspan extending from the first leg to the second leg, the backspan having an area less than or equal to 10 mm2 and greater than or equal to 0.25 mm2, wherein the surgical fastener is a non-deforming fastener such that the first and second legs are constructed to remain in an open position after deployment of the fastener; and
wherein the backspan includes a central pad with a thickness greater than a thickness of a portion of the backspan attached to the central pad, wherein the backspan and central pad are monolithically formed, and wherein the central pad protrudes downward past a bottom surface of the backspan. - View Dependent Claims (14, 15, 16, 17, 18, 19)
- a first leg;
Specification