Biopsy localization method and device

• US 20040204660A1
• Filed: 05/04/2004
• Published: 10/14/2004
• Est. Priority Date: 06/22/1998
• Status: Abandoned Application

• Current Assignee: Artemis Medical, Inc. (Johnson & Johnson)
• Original Assignee: Artemis Medical, Inc. (Johnson & Johnson)
• Inventors: Fulton, Richard E., Dubrul, William Richard
• Application Number:
  US10/839,226
• Publication Number:
  US 20040204660A1
• Time in Patent Office: Days
• US Class Current: 600/562
• CPC Class Codes: A61B 10/02 Instruments for taking cell samples or for biopsy A61B10/0038 and A61B10/0045 take precedence; needle locating or guiding means A61B17/3403; samplers for enzymology or microbiology C12M1/26; sampling or preparing biological specimens G01N33/48
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 17/3468 for implanting or removing devices, e.g. prostheses, implants, seeds, wires devices for implanting seeds A61M37/0069
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable, resorptive for implantable prostheses A61F2210/0004
• CPC Class Codes: A61B 2090/3908 Soft tissue, e.g. breast tissue
• CPC Class Codes: A61B 2090/3962 palpable
• CPC Class Codes: A61B 2090/3987 Applicators for implanting markers
• CPC Class Codes: A61B 6/502 for diagnosis of breast, i.e. mammography
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers

Abstract

A biopsy localization device made according to the invention includes a swellable bioresorbable element. The bioresorbable element preferably contains radiopaque marker. The bioresorbable element preferably swells to fill the biopsied open region. The bioresorbable element and radiopaque marker permit the biopsy site to be relocated by various techniques, including mammography and ultrasound.

Claims

1. A target tissue localization device comprising:

an elongate tubular member having a proximal end, a distal end, and a lumen therebetween;

a swellable bioresorbable body contained within the elongate tubular member; and

a radiopaque marker contained within the swellable bioresorbable body.

2. The target tissue localization device of claim 1, wherein the bioresorbable body is remotely visualizable by at least one of ultrasound and mammography.

3. The target tissue localization device of claim 1, wherein the bioresorbable body comprises at least one bioresorbable body.

4. The target tissue localization device of claim 1, wherein the bioresorbable body swells upon contact with body fluid.

5. The target tissue localization device of claim 4, wherein the bioresorbable body swells to substantially fill the biopsy site.

6. A method for marking a biopsy cavity comprising the steps of:

providing a swellable bioresorbable body containing a radiopaque marker;

removing a biopsy specimen from the breast of a patient, thereby creating a biopsy site;

inserting the bioresorbable body into the biopsy site to mark the location of the biopsy site, wherein the bioresorbable marker swells upon contact with body fluid; and

testing the biopsy specimen.

7. The method of claim 6, further comprising the step of relocating the biopsy site by detecting the radiopaque marker.

8. The method of claim 6, wherein the bioresorbable body is collagen.

9. The method of claim 6, wherein the bioresorbable body is gelatin.

10. The method of claim 6, wherein the bioresorbable body comprises at least one bioresorbable body.

11. The method of claim 6, wherein the bioresorbable body swells to substantially fill the biopsy site.

12. The method of claim 7, wherein the step of relocating the biopsy site is performed by mammography.

13. The method of claim 7, wherein the step of relocating the biopsy site is performed by ultrasound.