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Impact biopsy device and method of use

  • US 9,392,998 B2
  • Filed: 01/17/2014
  • Issued: 07/19/2016
  • Est. Priority Date: 01/18/2013
  • Status: Active Grant
First Claim
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1. A tissue biopsy device, comprising:

  • a handle configured to be grasped by a user;

    a needle assembly comprising a cannula, the needle assembly operably coupled to the handle, the needle assembly configured to sever a tissue sample; and

    an actuator assembly operably coupled to the handle and needle assembly, the actuator assembly comprising;

    a biasing member;

    a traveling member configured to be displaced by the biasing member when the actuator assembly is actuated;

    a follower; and

    an impact member coupled to the needle assembly, the impact member configured to displace at least a portion of the needle assembly when the traveling member impacts the impact member;

    wherein the cannula is fixedly coupled to the follower, the follower is releasably coupled to the impact member, and the follower is configured to decoupled from the impact member such that the impact member travels a longer distance than the follower when the device is actuated.

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