Apparatus and method for incising
First Claim
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1. A method for incising a body tissue, comprising:
- forming a hole on a body tissue by driving at least two of two the or more parallel incision shafts so that the at least one shaft moves periodically relative to another of the incision shafts in translational position or rotational position, the incision shafts associate as a unit to have a circular circumferential cross-section, each incision shaft having a distal edge at a distal end of the incision shaft; and
urging the shafts in a direction parallel to the shafts toward the body tissue such that the distal edges of the shafts are driven into the body tissue to result in the hole.
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Abstract
A multi-shaft apparatus for incising a substrate of soft resilient material such as a body tissue. The incising apparatus includes two or more incision shafts each having a distal edge. The shafts are not affixed to each other and are allowed to slide against each other to drive the distal edges alternately against the substrate to incise the substrate. In the case of incising a body tissue, such alternate motion would result in less pain to the patient than a puncture resulting from a sharp jab by a sharp shaft of similar size to the shafts.
250 Citations
18 Claims
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1. A method for incising a body tissue, comprising:
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forming a hole on a body tissue by driving at least two of two the or more parallel incision shafts so that the at least one shaft moves periodically relative to another of the incision shafts in translational position or rotational position, the incision shafts associate as a unit to have a circular circumferential cross-section, each incision shaft having a distal edge at a distal end of the incision shaft; and urging the shafts in a direction parallel to the shafts toward the body tissue such that the distal edges of the shafts are driven into the body tissue to result in the hole. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for incising a body tissue, comprising:
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(A) using a power source to drive at least two of two or more parallel shafts such that one shaft moves oscillatorily relative to another of the shafts in translational position, the shafts each having a sharp edge at a distal end, the shafts associate as a unit to have a circular circumferencial cross-section; and (B) urging the shafts in a longitudinal direction parallel to the shafts toward a body tissue such that the sharp edges of the shafts are driven longitudinally against the body tissue to penetrate the body tissue to result in a hole, wherein periodically the at least one of the shafts penetrates into the body tissue ahead further of the another of the parallel shafts. - View Dependent Claims (18)
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Specification