Methods and devices for providing access through tissue to a surgical site
First Claim
1. An adjustable access device, comprising:
- a housing having a cannula extending distally therefrom, the housing including a rotatable knob, the housing and the cannula defining a working channel extending therethrough for receiving an instrument, and the knob being rotatable relative to the cannula; and
at least one cutting mechanism extending from at least one depressible tab coupled to the housing, the at least one cutting mechanism being movable relative to the cannula between a first position in which the at least one cutting mechanism puctures a sidewall of the cannula and a second position in which the cutting mechanism does not puncture the sidewall of the cannula;
wherein rotating the knob when the cutting mechanism is in the first position causes the cutting mechanism to cut around a perimeter of the cannula to adjust a length of the cannula; and
wherein the at least one cutting mechanism is configured to be depressed to move the cutting mechanism from the second position to the first position to puncture 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
14 Claims
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1. An adjustable access device, comprising:
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a housing having a cannula extending distally therefrom, the housing including a rotatable knob, the housing and the cannula defining a working channel extending therethrough for receiving an instrument, and the knob being rotatable relative to the cannula; and at least one cutting mechanism extending from at least one depressible tab coupled to the housing, the at least one cutting mechanism being movable relative to the cannula between a first position in which the at least one cutting mechanism puctures a sidewall of the cannula and a second position in which the cutting mechanism does not puncture the sidewall of the cannula; wherein rotating the knob when the cutting mechanism is in the first position causes the cutting mechanism to cut around a perimeter of the cannula to adjust a length of the cannula; and wherein the at least one cutting mechanism is configured to be depressed to move the cutting mechanism from the second position to the first position to puncture 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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a housing having a cannula extending distally therefrom, the housing including a rotatable knob, the housing and the cannula defining a working channel extending therethrough for receiving an instrument, the knob being rotable relative to the cannula, and the knob including at least one cutting mechanism extending from the housing, the at least one cutting mechanism being movable relative to the cannula between a first position in which the at least one cutting mechanism punctures a sidewall of the cannula and a second position in which the cutting mechanism does not puncture the sidewall of the cannula; and an anchor segment attached to a distal-most end of the cannula, the anchor segment having a maximum outer diameter that is greater than a maximum outer diameter of the cannula; wherein rotating the knob when the cutting mechanism is in the first position causes the cutting mechanism to cut around a perimeter of the cannula to adjust a length of the cannula. - View Dependent Claims (12)
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13. An adjustable access device, comprising:
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a housing having a cannula extending distally therefrom, the housing including a rotable knob, the housing and the cannula defining a working channel extending therethrough for receiving an instrument, the knob being rotable relative to the cannula, and the knob including at least one cutting mechanism extending from the housing, the at least one cutting mechanism being moveable relative to the cannula between a first position in which the at least one cutting mechanism punctures a sidewall of the cannula and a second position in which the cutting mechanism does not puncture the sidewall of the cannula; wherein rotating the knob when the cutting mechanism is in the first position causes the cutting mechanism to cut around a perimeter of the cannula to adjust a length of the cannula; and wherein the housing includes a second rotatable knob, the second rotatable knob being configured to rotate relative to the rotatable knob and the cutting mechanism, when the at least one cutting mechanism is in the second position, to move the cannula relative to the rotatable knob and the cutting mechanism. - View Dependent Claims (14)
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Specification