Apparatus and method for removing tissue
First Claim
1. A surgical apparatus for removing tissue, which comprises:
- a housing;
an elongated body which extends from the housing and forms an opening at a distal end, the elongated body further forming a tissue receiving cavity in communication with the opening;
a cutting member operatively associated with the housing and movable transverse to the elongated body in proximity to the opening the cutting member being movable from a first position laterally outside the opening, transversely across the opening to a second position laterally outside the opening; and
a tissue retaining member connected to the cutting member, such that movement of the cutting member from the first position to the second position moves the retaining member from a retracted position to a deployed position whereby the tissue retaining member obstructs at least a portion of the opening at the distal end of the elongated body.
4 Assignments
0 Petitions
Accused Products
Abstract
A surgical apparatus for removing tissue, which includes a housing, an elongated body which extends from the housing and forms an opening at a distal end, the elongated body further forming a tissue receiving cavity in communication with the opening, a cutting member operatively associated with the housing and movable transverse to the elongated body in proximity to the opening, and a tissue retaining member positioned in proximity to the opening and the cutting member, the retaining member being selectively movable from a retracted position to a deployed position, wherein when positioned in the deployed position, the tissue retaining member obstructs at least a portion of the opening at the distal end of the elongated body. A method is also provided for surgically removing tissue including the steps of positioning a tissue removing instrument including an elongated housing having a tissue receiving cavity at a distal end, a first tissue cutting surface longitudinally movable relative to the elongated housing distal end, an obturator having a sharpened distal end portion such that the sharpened end portion is positioned adjacent the tissue to be removed and a second tissue cutting surface transversely movable relative to the elongated housing, removing the obturator from the elongated housing, coring the tissue to be removed, severing the cored tissue from the surrounding tissue with the second cutting surface, and removing the severed tissue from the patient.
262 Citations
29 Claims
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1. A surgical apparatus for removing tissue, which comprises:
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a housing; an elongated body which extends from the housing and forms an opening at a distal end, the elongated body further forming a tissue receiving cavity in communication with the opening; a cutting member operatively associated with the housing and movable transverse to the elongated body in proximity to the opening the cutting member being movable from a first position laterally outside the opening, transversely across the opening to a second position laterally outside the opening; and a tissue retaining member connected to the cutting member, such that movement of the cutting member from the first position to the second position moves the retaining member from a retracted position to a deployed position whereby the tissue retaining member obstructs at least a portion of the opening at the distal end of the elongated body. - View Dependent Claims (2, 3, 4, 5)
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6. 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; a tubular member movable relative to the elongated body, the tubular member having a tissue cutting surface formed at a distal end thereof; 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, the cutting member being movable from a first position laterally outside the opening, transversely across the opening to a second position laterally outside the opening, whereby the tissue cutting member and the tubular member are movable independently of each other; and a tissue retaining member connected to the cutting member, such that movement of the cutting member from the first position to the second position moves the retaining member from a retracted position to a deployed position whereby the tissue retaining member obstructs at least a portion of the opening at the distal end of the elongated body. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
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15. 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; a tubular member movable relative to the elongated body, the tubular member having a tissue cutting surface formed at a distal end thereof; 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, the cutting member being movable from a first position laterally outside the opening, transversely across the opening to a second position laterally outside the opening, the tissue cutting member and the tubular member being movable independently of each other; a tissue retaining member connected to the cutting member, such that movement of the cutting member from the first position to the second position moves the retaining member from a retracted position to a deployed position whereby the tissue retaining member obstructs at least a portion of the opening at the distal end of the elongated body; and an actuator operatively connected to the tissue cutting member, whereby the at least a portion of the tissue cutting member is moved transverse to the elongated body upon movement of the actuator from a first position to a second position. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method for surgically removing tissue comprising the steps of:
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positioning a tissue removing instrument including an elongated housing having a tissue receiving cavity and an opening at a distal end, a first tissue cutting surface longitudinally movable relative to the elongated housing distal end, an obturator having a sharpened distal end portion such that the sharpened end portion is positioned adjacent the tissue to be removed, a second tissue cutting surface transversely movable relative to the elongated housing from a first position laterally outside the opening, transversely across the opening to a second position laterally outside the opening, and a tissue retaining member connected to the cutting member such that movement of the cutting member from the first position to the second position moves the retaining member from a retracted position to a deployed position whereby the tissue retaining member obstructs at least a portion of the opening at the distal end of the elongated body; removing the obturator from the elongated housing; coring the tissue to be removed; severing the cored tissue from the surrounding tissue with the second cutting surface by moving the second cutting surface completely across the tissue receiving cavity from the first position to the second position laterally away from the opening; retaining the cored tissue within the tissue receiving cavity by moving the retaining member to the deployed position; and removing the severed tissue from the patient.
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Specification