Device and method for resecting body tissues
First Claim
1. A resecting device for use in tissue removal, comprising:
- (a) a cannula having a hollow and a longitudinal axis, said cannula being sized for introduction into a body and formed with at least one cutting opening having a cutting edge;
(b) a rotating mechanism connectable through a shaft to said cannula for rotating said cannula around said longitudinal axis thereof, such that when contacted with a tissue and rotated, said cutting edge of said at least one cutting opening dissects the tissue and directs the dissected tissue through said opening and into said hollow of said cannulal; and
(c) a heating device, said hearing device being for heating the tissue, said heating device including a friction element being contactable with a portion of said cannula, so as to generate heat thereat.
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Accused Products
Abstract
A resecting device for use in tissue removal is disclosed. The resecting device includes a cannula having a hollow and which is sized for introduction into a body. The cannula is formed with at least one, preferably a plurality of, cutting openings each having a cutting edge. The resecting device further includes a rotating mechanism which is connectable through a shaft to the cannula and which serves for rotating the cannula around a longitudinal axis thereof. As a result of such rotation and the cannula'"'"'s construction, when the cannula is contacted with a tissue, the cutting edges of the cutting openings dissect the tissue and direct the dissected tissue through the openings into the hollow of the cannula.
152 Citations
48 Claims
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1. A resecting device for use in tissue removal, comprising:
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(a) a cannula having a hollow and a longitudinal axis, said cannula being sized for introduction into a body and formed with at least one cutting opening having a cutting edge; (b) a rotating mechanism connectable through a shaft to said cannula for rotating said cannula around said longitudinal axis thereof, such that when contacted with a tissue and rotated, said cutting edge of said at least one cutting opening dissects the tissue and directs the dissected tissue through said opening and into said hollow of said cannulal; and (c) a heating device, said hearing device being for heating the tissue, said heating device including a friction element being contactable with a portion of said cannula, so as to generate heat thereat. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 26, 27)
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24. A surgical procedure of tissue excision in a preselected region in a body, the procedure comprising the steps of:
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(a) providing a resecting device, including a cannula having a hollow and a longitudinal axis, said cannula being sized for introduction into the body and being formed with at least one cutting opening having a cutting edge, said resecting device further including a heating device, said heating device being for heating a tissue, said heating device including a friction element being contactable with a portion of said cannula, so as to generate heat thereat; (b) inserting said cannula into the preselected region in the body; and (c) contacting said cannula with a tissue to be excised and rotating said cannula via a rotating mechanism, such that said cutting edge of said at least one cutting opening dissects the tissue and directs the dissected tissue through said opening and into said hollow. - View Dependent Claims (25)
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28. A resecting device for use in tissue removal, comprising:
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(a) a cannula having a hollow and a longitudinal axis, said cannula being sized for introduction into a body and formed with at least one cutting opening having a cutting edge; (b) a rotating mechanism connectable through a shaft to said cannula for rotating said cannula around said longitudinal axis thereof, such that when contacted with a tissue and rotated, said cutting edge of said at least one cutting opening dissects the tissue and directs the dissected tissue through said opening and into said hollow of said cannula, said shaft including at least one bendable portion; (c) a guiding mechanism for bending said at least one bendable portion of said shaft to thereby change a positional orientation between said cannula and said shaft, for allowing flexibility in guiding and positioning of said cannula; and (d) a heating device for heating the tissue, said heating device includes a friction element being contactable with a portion of said cannula, so as to generate heat thereat. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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Specification