METHODS AND DEVICES FOR PROVIDING ACCESS THROUGH TISSUE TO A SURGICAL SITE
First Claim
1. An adjustable access device, comprising:
- a cannula comprising a plurality of segments removably coupled to one another such that a mating connection between each of the plurality of segments forms a fluid tight seal and such that a length of the cannula is adjustable, the cannula defining a working channel extending therethrough for receiving an instrument; and
a collar slidably disposed on the cannula and configured to selectively engage one of the plurality of segments to allow adjustment of a distance between the collar and a distal end of the cannula.
4 Assignments
0 Petitions
Accused Products
Abstract
Methods and devices are provided for providing access through tissue to a surgical site. Generally, the methods and devices allow adjustment of a surgical access port'"'"'s longitudinal length. In one embodiment, a surgical access port is provided that includes a housing having a cannula distally extending therefrom. The housing can be configured to cut a proximal portion of the cannula to adjust a longitudinal length of the cannula and hence of the surgical access port. In another embodiment, a surgical access port is provided that includes a cannula formed of a plurality of modular segments removably coupled together. One or more of the segments can be configured to be removable from the cannula to change the cannula'"'"'s longitudinal length.
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Citations
20 Claims
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1. An adjustable access device, comprising:
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a cannula comprising a plurality of segments removably coupled to one another such that a mating connection between each of the plurality of segments forms a fluid tight seal and such that a length of the cannula is adjustable, the cannula defining a working channel extending therethrough for receiving an instrument; and a collar slidably disposed on the cannula and configured to selectively engage one of the plurality of segments to allow adjustment of a distance between the collar and a distal end of the cannula. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An adjustable access device, comprising:
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an elongate tube defining a fluid-tight inner passageway extending longitudinally therethrough, the elongate tube including a plurality of segments releasably coupled together, the plurality of segments being configured to be selectively removed from a proximal end of the elongate tube to reduce a longitudinal length of the elongate tube; a collar having a central opening and being configured to receive the elongate tube through the central opening such that each of the plurality of segments proximal to the collar is removable from a remainder of the plurality of segments to reduce the longitudinal length of the elongate tube; and a housing configured to mate to the collar, the housing having at least one seal disposed therein that is configured to form at least one of a seal around an instrument disposed through the housing and a seal across the housing when no instrument is disposed therethrough. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method of adjusting an access device, comprising:
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inserting a plurality of cannulated segments removably coupled together and defining a fluid-tight tube through an opening in tissue such that a collar disposed around the tube and a proximal end of the tube are positioned outside the tissue and such that at least a distal end of the tube is disposed in a body cavity underlying the tissue; and removing each of the segments located proximal to the collar from the tube inserted through the opening in tissue such that a remainder of the tube extends through the opening in tissue with the collar disposed around the tube. - View Dependent Claims (17, 18, 19, 20)
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Specification