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US 6,213,957 B1Granted
Apparatus and method for removing tissue
AssigneeUnited States Surgical Corporation
InventorsKeith L. Milliman, Lisa W. Heaton
Life of this patent
Estimating the term…
Abstract
A surgical apparatus for removing tissue, which includes (i) an elongated body defining an opening at a distal end and forming a tissue receiving cavity in communication with the opening (ii) a blunt dilator at least partially disposed in the tissue receiving cavity and (iii) a cutting member operatively movable transverse to the elongated body in proximity to the opening.
Claims22
A surgical apparatus for removing tissue, which comprises:
- an elongated body defining an opening at a distal end and having a cutting member positioned in proximity to the opening, the elongated body further forming a tissue receiving cavity in communication with the opening;
- an elongated obturator coaxially spaced with respect to the elongated body, the obturator being at least partially disposed in the tissue receiving cavity and defining a passageway therein;
- and
- a dilating structure positioned in the passageway.
1 more element
A surgical apparatus for removing tissue, which comprises:
- a housing defining a longitudinal channel therethrough configured and dimensioned to receive surgical instrumentation therein;
- an elongated body which extends from the housing and forms an opening at a distal end thereof, the elongated body further forming a tissue receiving cavity in communication with the opening;
- an elongated obturator coaxially spaced with respect to the elongated body and being at least partially disposed in the longitudinal channel, the obturator including a plurality of dilators configured to support an elongated surgical instrument;
- and
- a cutting member operatively associated with the housing and movable transversely across the opening.
2 more elements
A surgical apparatus for removing tissue, which comprises:
- an elongated body defining an opening at a distal end, the elongated body further forming a tissue receiving cavity in communication with the opening;
- an elongated obturator coaxially spaced with respect to the elongated body and at least partially disposed within the tissue receiving cavity, the obturator including a blunt distal end portion and at least one axially aligned support formed along an inner surface thereof, the at least one support supporting a hollow rod coaxially spaced with respect to the elongated obturator;
- an inflatable balloon positioned on the hollow rod and in fluid communication with an external fluid source;
- a tubular member movable relative to the elongated body, the tubular member having a cutting surface formed at a distal end thereof;
- and
- a tissue cutting member disposed adjacent the tubular member, at least a portion of the tissue cutting member being movable transverse to the elongated body in proximity to the opening such that the cutting member cuts transversely across the opening.
3 more elements
Dependencies are inferred from the claim text.