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Firing System For Biopsy Device

  • US 20100210966A1
  • Filed: 07/08/2005
  • Published: 08/19/2010
  • Est. Priority Date: 07/09/2004
  • Status: Active Grant
First Claim
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1. A handheld biopsy device for harvesting at least one tissue sample from a suspect tissue mass in a body of a living being, comprising:

  • a hollow needle with a distal end portion adapted to be introduced into the body, the hollow needle comprising a circumferential cutting edge at its distal end;

    a sample-receiving device with a cavity for receiving the at least severed tissue sample, the sample-receiving device being receivable in the hollow needle and movable therein;

    a first user-operable firing mechanism for causing the hollow needle and the sample-receiving device to be longitudinally displaced in a distal direction, so as to penetrate body tissue at or near the suspect tissue mass;

    a second user-operable firing mechanism for causing the hollow needle to be longitudinally displaced in a distal direction from a first position, in which the sample-receiving device projects from the distal end of the hollow needle, to a second position, in which the hollow needle essentially accommodates the cavity of the sample-receiving device, so as to sever said tissue sample from remaining body tissue at the harvesting site.

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