TROCAR ANCHOR
First Claim
1. A trocar access assembly comprising:
- an anchor sleeve; and
an obturator insertable through the anchor sleeve;
wherein when the obturator is inserted through the anchor sleeve, the obturator causes at least a portion of the anchor sleeve to be axially elongated and a radial cross-section of the portion of the anchor sleeve to become smaller, and wherein when the obturator is retracted from the anchor sleeve, the obturator causes the portion of the anchor sleeve to be axially shortened and the radial cross-section of the portion of the anchor sleeve to become larger such that the portion of the anchor sleeve having the enlarged radial cross-section engages an inner surface of an incision.
2 Assignments
0 Petitions
Accused Products
Abstract
Apparatus and methods for providing access to a body cavity without substantial loss of inflation gas therein. The apparatus includes an access assembly that has a tubular member having a proximal end, a distal end, an elastic portion interposed the proximal end and the distal end, and a lumen therethrough. An anchor sleeve is disposed coaxially over the tubular member and has a radially expandable region. The anchor sleeve is moveable between an axially elongated configuration and an axially shortened configuration and is biased toward the axially shortened configuration by a force exerted by the elastic portion of the tubular member. The axially shortened configuration corresponds to the anchor sleeve being in the fully deployed position. Methods for providing anchored access to a cavity within a patient are also disclosed.
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Citations
9 Claims
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1. A trocar access assembly comprising:
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an anchor sleeve; and an obturator insertable through the anchor sleeve; wherein when the obturator is inserted through the anchor sleeve, the obturator causes at least a portion of the anchor sleeve to be axially elongated and a radial cross-section of the portion of the anchor sleeve to become smaller, and wherein when the obturator is retracted from the anchor sleeve, the obturator causes the portion of the anchor sleeve to be axially shortened and the radial cross-section of the portion of the anchor sleeve to become larger such that the portion of the anchor sleeve having the enlarged radial cross-section engages an inner surface of an incision. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method comprising the steps of:
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providing a trocar anchor assembly including an obturator and an anchor sleeve; inserting the obturator through the anchor sleeve, the obturator causing at least a portion of the anchor sleeve to be axially elongated and a radial cross-section of the portion of the anchor sleeve to become smaller; inserting the trocar anchor assembly into an incision; retracting the obturator from the anchor sleeve, the obturator causing the portion of the anchor sleeve to be axially shortened and the radial cross-section of the portion of the anchor sleeve to become larger such that the portion of the anchor sleeve having the enlarged radial cross-section engages an inner surface of an incision; and inserting a surgical instrument through the anchor sleeve to perform a surgical procedure. - View Dependent Claims (8, 9)
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Specification