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Cavity filling biopsy site markers

  • US 8,965,486 B2
  • Filed: 12/06/2013
  • Issued: 02/24/2015
  • Est. Priority Date: 02/02/1999
  • Status: Expired due to Fees
First Claim
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1. A marking system, comprising:

  • a delivery tube; and

    an ultrasound-detectable biopsy marker carried by the delivery tube, the ultrasound-detectable biopsy marker formed of particles of material having internal bubble cavities,wherein a particle size of the particles is between about 200 microns and about 500 microns, and the bubble cavities have a size of at least 50 microns, wherein the bubble cavities have geometric centers and the bubble cavity size is measured by length through the geometric centers of the bubble cavities.

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