Apparatus and method for removing tissue
First Claim
Patent Images
1. 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.
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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.
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Citations
22 Claims
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1. A surgical apparatus for removing tissue, which comprises:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A surgical apparatus for removing tissue, which comprises:
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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. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A surgical apparatus for removing tissue, which comprises:
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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. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification