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Cavity-filling biopsy site markers

  • US 9,237,937 B2
  • Filed: 02/20/2015
  • Issued: 01/19/2016
  • Est. Priority Date: 02/02/1999
  • Status: Expired due to Fees
First Claim
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1. A method of marking a biopsy site within a patient'"'"'s body, comprising:

  • providing a delivery tube having a plunger;

    carrying a quantity of an ultrasound-detectable bio-resorbable particulate material in the delivery tube distal to the plunger, the ultrasound-detectable bio-resorbable particulate material having a particle size between about 200 microns and about 500 microns and having internal bubble cavities having a size of at least 50 microns; and

    depressing the plunger for depositing the quantity of the ultrasound-detectable bio-resorbable particulate material at the biopsy site.

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