Self-conforming surgical seal
First Claim
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1. An apparatus for enlarging an anatomical space, the apparatus comprising:
- a dilation member having a radially expandable portion at least partially fabricated from a series of filaments, the dilation member defining a lumen and having at least a first cross-sectional area; and
an expansion member operatively associated with the dilation member for effectuating expansion of the radially expandable portion from the first cross-sectional area to at least one additional cross-sectional area which is greater than the first cross-sectional area, the expansion member including;
a handle assembly; and
a tubular element extending distally from the handle assembly, the tubular element including a proximal end, a distal end, and an anchoring portion positioned adjacent the distal end, the handle assembly being repositionable to selectively reconfigure the anchoring portion from a first relatively smaller diameter to a second relatively larger diameter to anchor the expansion member within the anatomical space.
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Abstract
The present disclosure relates to surgical seal, or valve, of the type adapted to releasably receive a surgical object. The seal disclosed herein defines an aperture that is configured to maintain a substantially fluid-tight seal with the surgical object upon its insertion, and includes at least one cable member connected to the seal that facilitates maintenance of the substantially fluid-tight seal during subsequent lateral manipulation of the surgical object.
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Citations
18 Claims
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1. An apparatus for enlarging an anatomical space, the apparatus comprising:
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a dilation member having a radially expandable portion at least partially fabricated from a series of filaments, the dilation member defining a lumen and having at least a first cross-sectional area; and an expansion member operatively associated with the dilation member for effectuating expansion of the radially expandable portion from the first cross-sectional area to at least one additional cross-sectional area which is greater than the first cross-sectional area, the expansion member including; a handle assembly; and a tubular element extending distally from the handle assembly, the tubular element including a proximal end, a distal end, and an anchoring portion positioned adjacent the distal end, the handle assembly being repositionable to selectively reconfigure the anchoring portion from a first relatively smaller diameter to a second relatively larger diameter to anchor the expansion member within the anatomical space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for enlarging an anatomical space, the apparatus comprising:
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a dilation member defining a lumen, the dilation member having a first condition, in which at least a portion thereof is configured for percutaneous introduction into the anatomical space, and at least a second condition, in which the portion configured for percutaneous introduction is radially larger than when in the first condition, the portion of the dilation member configured for percutaneous introduction being fabricated from a series of inter-laced filaments; and an expansion member operatively associated with the dilation member for transitioning the dilation member between the first and second conditions, the expansion member including; a handle assembly; and a tubular element extending distally from the handle assembly, the tubular element including a proximal end, a distal end, and an anchoring portion positioned adjacent the distal end, the handle assembly being repositionable to selectively reconfigure the anchoring portion from a first relatively smaller diameter to a second relatively larger diameter to anchor the expansion member within the anatomical space. - View Dependent Claims (12, 13, 14)
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15. An apparatus for enlarging an anatomical space, the apparatus comprising:
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a dilation member having a proximal end, a distal end, and defining a lumen, at least a portion of the dilation member being fabricated from a plurality of filaments, the dilation member having a first configuration, in which the dilation member defines a substantially uniform cross-sectional area along its entire length, and a second configuration, in which the dilation member has an enlarged cross-sectional area along at least a portion of its length; and an expansion member operatively associated with the dilation member for reconfiguring the dilation member from the first configuration to the second configuration, the expansion member including; a handle assembly; and a tubular element extending distally from the handle assembly, the tubular element including a proximal end, a distal end, and an anchoring portion positioned adjacent the distal end, the handle assembly being repositionable to selectively reconfigure the anchoring portion from a first relatively smaller diameter to a second relatively larger diameter to anchor the expansion member within the anatomical space. - View Dependent Claims (16, 17, 18)
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Specification