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 such that the collar can slide along an external surface of each of the plurality of segments when the segments are removably coupled to one another, the collar being 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
18 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 such that the collar can slide along an external surface of each of the plurality of segments when the segments are removably coupled to one another, the collar being 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, 10)
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11. 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 (12, 13, 14, 15, 16)
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17. 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; wherein each of the segments proximal to the one of the plurality of segments engaged by the collar are removable from the one of the plurality of segments engaged by the collar and each of the plurality of segments distal to the collar. - View Dependent Claims (18)
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Specification