Imageable biopsy site marker

a biopsy site and marker technology, applied in the field of markers, can solve the problems of significantly reducing the mortality rate caused by this form of cancer, days or even a week before, and achieve the effects of accurate visualization of the boundary, easy or enhanced visualization of the biopsy cavity boundary, and accurate excise and remove a quantity
US20060084865A1Inactive Publication Date: 2006-04-20SENORX
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
SENORX
Publication Date
2006-04-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

A biopsy site marker having at least one small marker body or pellet of bioresorbable material such as gelatin, collagen, polylactic acid, polyglycolic acid which has a radiopaque object, preferably with a non-biological configuration. The at least one bioresorbable body or pellet with a radiopaque object is deposited into the biopsy site, by an delivery device that includes an elongated tubular body with a piston slidable within the tubular body. One end of the tube is placed into the biopsy site. At least one but preferably several marker bodies or pellets are deposited sequentially into the biopsy site through the tube. At least the bioresorbable materials of the detectable markers remain present in sufficient quantity to permit detection and location of the biopsy site at a first time point (e.g., 2 weeks) after introduction but clear from the biopsy site or otherwise do not interfere with imaging of tissues adjacent the biopsy site at a second time point (e.g., 5-7 months) after introduction.
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Description

RELATED APPLICATIONS

[0001] This application is a continuation of application Ser. No. 10 / 719,448, filed on Nov. 21, 2003, which is a continuation of application Ser. No. 10 / 684,124, filed on Oct. 10, 2003, which is a continuation of application Ser. No. 10 / 001,043, filed on Oct. 31, 2001 (now U.S. Pat. No. 6,347,241), which is a continuation of application Ser. No. 09 / 343,975 (now U.S. Pat. No. 6,662,041), filed on Jun. 30, 1999, and a continuation-in-part application to application Ser. No. 09 / 241,936, filed on Feb. 2, 1999, now U.S. Pat. No. 6,161,034, which are incorporated herein by reference in their entirety.FIELD OF THE INVENTION

[0002] The present invention is in the field of markers to be employed at biopsy sites to permanently mark the site, and to methods and apparatus for applying the permanent marker. More particularly, the present invention relates to a marker that is optimally adapted for marking biopsy sites in human breast tissue with permanently placed markers tha...

Claims

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