Radially adjustable tissue removal device
First Claim
1. A tissue removal probe, comprising:
- a laterally flexible and resilient elongated member having a lumen and a pre-curved distal end;
a drive shaft rotatably disposed within the member lumen;
a rotatable tissue removal element disposed on the drive shaft adjacent the member distal end, the tissue removal element having an axis of rotation.
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0 Petitions
Accused Products
Abstract
A tissue removal kit or assembly comprises a cannula and a tissue removal probe axially slidable within the cannula. The tissue removal probe comprises an elongated member a distal end configured to curve when distally deployed from the cannula. The tissue removal probe further comprises a drive shaft rotatably disposed within the member, and a rotatable tissue removal element (e.g., an abrasive burr) disposed on the drive shaft adjacent the member distal end. The curved member distal end may associate the tissue removal element, which has its own axis of rotation, with a radius of revolution about the longitudinal axis of the member. The member is laterally flexible and resilient, so that the radius of revolution can be adjusted. In this manner, the tissue removal element can remove tissue around an adjustable arc.
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Citations
44 Claims
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1. A tissue removal probe, comprising:
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a laterally flexible and resilient elongated member having a lumen and a pre-curved distal end;
a drive shaft rotatably disposed within the member lumen;
a rotatable tissue removal element disposed on the drive shaft adjacent the member distal end, the tissue removal element having an axis of rotation. - View Dependent Claims (2, 3, 4, 16)
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5. A tissue removal kit, comprising:
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a cannula having a lumen; and
a tissue removal probe axially slidable within the cannula lumen, the tissue removal probe comprising;
an elongated member having a lumen and a distal end configured to curve when distally deployed from the cannula lumen;
a drive shaft rotatably disposed within the member lumen; and
a rotatable tissue removal element disposed on the drive shaft adjacent the member distal end, the tissue removal element having an axis of rotation. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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17. A method of removing tissue from an anatomical body, comprising:
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introducing a cannula into the anatomical body at a first location;
introducing a tissue removal probe through the cannula, wherein the tissue removal probe comprises an elongated member having a straight portion and a distal end, and a distally located tissue removal element associated with the distal end, the straight member portion having a first axis of rotation, and the tissue removal element having a second axis of rotation;
displacing the tissue removal element, wherein the member distal end bends to associate the tissue removal element with a first radius of revolution about the first axis of rotation;
rotating the straight member portion around the first axis of rotation, wherein the tissue removal element scribes a first arc defined by the first radius of revolution; and
rotating the tissue removal element about the second axis of rotation to remove tissue at at least two points along the first arc. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method of removing tissue from an anatomical body, comprising:
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introducing a cannula into the anatomical body at a first location;
introducing a tissue removal probe through the cannula, wherein the tissue removal probe comprises an elongated member having a distal end, and a distally located tissue removal element associated with the distal end and having an axis of rotation;
displacing the tissue removal element from the cannula to associate the tissue removal element with a first radius of curvature;
bending the member distal end, wherein the tissue removal element scribes a first arc defined by the first radius of curvature; and
rotating the tissue removal element about the axis of rotation to remove tissue at at least two points along the first arc. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification