Seal anchor introducer including biasing member
First Claim
Patent Images
1. A seal anchor member comprising:
- a leading portion;
a trailing portion;
an intermediate portion disposed between the leading and trailing portions and including an outer wall having an inner surface and an outer surface, the intermediate portion transitionable between a first state defining a first length and a second state defining a second length;
at least one lumen longitudinally extending between the leading and trailing portions having an outer surface and an inner surface; and
a biasing member disposed around the outer surface of the lumen for transitioning the intermediate portion between the first and second states, wherein the biasing member is disposed between the inner surface and the outer surface of the outer wall of the intermediate portion in a helical pattern surrounding the lumen, and wherein the biasing member is biased toward a fully expanded state.
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Abstract
A seal anchor member has opposing ends that define a longitudinal axis. The seal anchor member is adapted to transition between an expanded condition and a compressed condition to facilitate securing of the seal anchor member within a tissue tract in a substantially sealed relationship. The seal anchor member includes a biasing member positioned along the longitudinal axis. The biasing member is configured and adapted to facilitate the transition between the expanded and compressed conditions. The seal anchor member further includes at least one lumen extending through the seal anchor member for slidably receiving a surgical instrument.
274 Citations
14 Claims
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1. A seal anchor member comprising:
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a leading portion; a trailing portion; an intermediate portion disposed between the leading and trailing portions and including an outer wall having an inner surface and an outer surface, the intermediate portion transitionable between a first state defining a first length and a second state defining a second length; at least one lumen longitudinally extending between the leading and trailing portions having an outer surface and an inner surface; and a biasing member disposed around the outer surface of the lumen for transitioning the intermediate portion between the first and second states, wherein the biasing member is disposed between the inner surface and the outer surface of the outer wall of the intermediate portion in a helical pattern surrounding the lumen, and wherein the biasing member is biased toward a fully expanded state. - View Dependent Claims (2, 3, 4, 5, 10)
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6. A seal anchor member comprising:
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a leading portion; a trailing portion, at least one of the leading portion and the trailing portion defined by a radially outward rim; an intermediate portion disposed between the leading and trailing portions, the intermediate portion transitionable between a first state defining a first length and a second state defining a second length; at least one port longitudinally extending between the leading and trailing portions having an initial open state having a first inner dimension; and a biasing member disposed around the port for transitioning the intermediate portion between the first and second states, wherein the biasing member is disposed in a helical pattern on an outer surface of the port, and wherein the biasing member is biased toward a fully expanded state. - View Dependent Claims (7, 8, 9, 11, 12, 13, 14)
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Specification