Calibration method for an automated surgical biopsy device
First Claim
1. A method for calibrating a surgical biopsy system, said surgical biopsy system comprising a biopsy instrument and a control unit, said biopsy instrument comprising an elongated, hollow piercer, a cutter rotatably and axially positionable relative to said piercer, a port in said piercer for receiving tissue samples, said surgical biopsy system comprising a control unit and a display for providing feedback signals to an operator, said method comprising the steps of:
- a) translating said cutter distally until translation of said cutter is stopped at an extended position;
b) recording said extended position;
c) translating said cutter from said extended position proximally until translation of said cutter is stopped at a retracted position proximal to said extended position;
d) recording said retracted position.
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Accused Products
Abstract
A method is provided for calibrating a surgical biopsy system. The biopsy system includes a biopsy instrument and control unit. The biopsy instrument includes a piercer, rotatable cutter, and a port for receiving tissue samples. The method comprises the steps of translating the cutter distally until the translation of the cutter is stopped at an extended position and recording the extended position. The cutter is then translated from the extended position proximally until the translation of the cutter is stopped at a retracted position proximal to the extended position. The retracted position is recorded. The method further comprises the step of rotating the cutter to a rotation speed while the cutter is located at the retracted position and, if determined that the rotation speed is within a predetermined rotation speed range, a feedback signal is provided on the display allowing the operator to progress to the next procedural step.
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Citations
17 Claims
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1. A method for calibrating a surgical biopsy system, said surgical biopsy system comprising a biopsy instrument and a control unit, said biopsy instrument comprising an elongated, hollow piercer, a cutter rotatably and axially positionable relative to said piercer, a port in said piercer for receiving tissue samples, said surgical biopsy system comprising a control unit and a display for providing feedback signals to an operator, said method comprising the steps of:
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a) translating said cutter distally until translation of said cutter is stopped at an extended position;
b) recording said extended position;
c) translating said cutter from said extended position proximally until translation of said cutter is stopped at a retracted position proximal to said extended position;
d) recording said retracted position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for calibrating the rotation of a cutter of a surgical biopsy system, said surgical biopsy system comprising a biopsy instrument and a control unit, said biopsy instrument comprising an elongated, hollow piercer, a cutter rotatably and axially positionable relative to said piercer, a port in said piercer for receiving the tissue sample, said surgical biopsy system comprising a control unit and a display for providing feedback signals to an operator, said method comprising the steps of:
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a) rotating said cutter to a rotation speed while said cutter is located at said retracted position;
b) determining if said rotation speed is reached and maintained within a fixed time interval;
c) providing on said display a fourth feedback signal allowing the operator to progress to the next procedural step when said rotation speed meets predetermined parameters. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method for determining that the correctly sized biopsy instrument has been selected by an operator for a surgical biopsy system, said surgical biopsy system comprising a biopsy instrument and a control unit, said biopsy instrument comprising an elongated, hollow piercer, a cutter rotatably and axially positionable relative to said piercer, a port in said piercer for receiving tissue samples, said surgical biopsy system comprising a control unit and a display for providing feedback signals to an operator, said method comprising the steps of:
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a) translating said cutter distally until translation of said cutter is stopped at an extended position;
b) recording said extended position c) translating said cutter from said extended position proximally until translation of said cutter is stopped at a retracted position proximal to said extended position;
d) recording said retracted position;
e) computing in said control unit total distance traveled between said retracted position and said extended position by said cutter;
f) providing on said display a feedback signal to the operator when said total distance traveled falls outside a predetermined range.
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Specification