Claims
- 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.
- 2. The method of claim 1 further comprising the step of providing a first feedback signal to the operator when said cutter travel exceeds a first distance greater than a first predetermined value while moving to said extended position.
- 3. The method of claim 1 further comprising the step of providing a second feedback signal to the operator when said cutter travel exceeds a second distance greater than a second predetermined value while moving from said extended position to said retracted position.
- 4. The method of claim 1 further comprising the step of measuring a longitudinal displacement between said retracted position and said extended position, determining if said longitudinal displacement is within a third predetermined range, and providing a third feedback signal to the operator when said longitudinal displacement is not within said third predetermined range.
- 5. The method of claim 1 further comprising the step of recording said retracted position in said control unit each time said cutter is subsequently moved to said retracted position.
- 6. The method of claim 1 wherein said biopsy instrument is hand manipulatable.
- 7. The method of claim 1 wherein said biopsy instrument is detachably fixed to an imaging machine.
- 8. The method of claim 2 wherein said first predetermined value is about 5.25 inches.
- 9. The method of claim 3 wherein said second predetermined value is about 5.10 inches.
- 10. The method of claim 4 wherein said third predetermined range is about 5.025±0.075 inches.
- 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:
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.
- 12. The method of claim 11 further comprising the step of providing a fifth feedback signal to the operator when said rotational speed is not within said predetermined parameters.
- 13. The method of claim 11 wherein said biopsy instrument is hand manipulatable.
- 14. The method of claim 11 wherein said biopsy instrument is detachably fixed to an imaging machine.
- 15. The method of claim 11 wherein said fixed time interval is about three seconds.
- 16. The method of claim 11 wherein said rotation speed is about 200 revolutions per minute.
- 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:
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.
Parent Case Info
[0001] This application is related to the following co-pending U.S. patent application: Ser. No. 08/825,899 filed on Apr. 2, 1997. This application is further related to the following co-pending U.S. patent applications, which are hereby incorporated herein by reference: Ser. No. 09/543,122 filed on Oct. 23, 1998; Ser. No. 09/466,391 filed Dec. 17, 1999; Ser. No. 09/466,491 filed Dec. 17, 1999.
Provisional Applications (1)
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Number |
Date |
Country |
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60222416 |
Aug 2000 |
US |