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Two-dimensional needle array device and method of use

  • US 9,743,949 B2
  • Filed: 12/03/2015
  • Issued: 08/29/2017
  • Est. Priority Date: 04/22/2015
  • Status: Active Grant
First Claim
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1. A device for obtaining biological tissue comprising;

  • an array of hollow tubes, the array comprisinga first row of a plurality of hollow tubes;

    a second row of a plurality of hollow tubes, adjacent the first row of hollow tubes;

    a third row of a plurality of hollow tubes, adjacent the second row of hollow tubes, the first, second and third rows forming an array of hollow tubes;

    wherein each hollow tube comprises two points at the distal end of the hollow tube, the plurality of rows forming a two dimensional array of hollow tubes;

    wherein the two points are formed by a first bevel on a first external side of an outer surface of the hollow tube and a second bevel on a second external side of an outer surface of the tube opposing the first side of the hollow tube;

    the first bevel having at least two angle sections including a first shallow angle section to form a first narrow heel and the second bevel having at least two angle sections including a second shallow angle section to form a second narrow heel;

    the array comprising a circle having an area of about one square inch;

    wherein an inner diameter of each hollow tube is less than about 1 mm, the distal end of each of the hollow tubes is configured to be inserted into a biological tissue donor site to remove a portion of tissue therefrom when each of the hollow tubes is withdrawn from the donor site;

    wherein the array comprises a sufficient number of hollow tubes to withdraw about 0.1 square inches of tissue from the donor site with a single insertion of the array;

    a first solenoid, wherein first the solenoid actuates at least a first row of hollow tubes to insert at least the first row of hollow tubes into the biological tissue donor site.

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