×

Quick cycle biopsy system

  • US 9,161,743 B2
  • Filed: 04/21/2014
  • Issued: 10/20/2015
  • Est. Priority Date: 01/31/2005
  • Status: Active Grant
First Claim
Patent Images

1. A biopsy apparatus, comprising:

  • a cannula having a lumen, a proximal portion, a closed distal end, and an orifice located on a circumferential surface of the cannula, the orifice being configured to receive a tissue sample into the lumen of the cannula;

    a cutting sheath coaxially disposed with the cannula, the cutting sheath being configured to be movable relative to the cannula to selectively cover the orifice;

    a pressure chamber coupled to the proximal portion of the cannula, the pressure chamber configured to contain a pressure; and

    a bifurcated valve assembly interposed between the cannula and the pressure chamber, the bifurcated valve assembly having a first valve configured to release the pressure into the lumen of the cannula and having a second valve coupled between the first valve and the pressure chamber, the second valve configured to facilitate an inflow of air into the pressure chamber.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×