Biopsy localization method and device

• US 20060079829A1
• Filed: 11/18/2005
• Published: 04/13/2006
• Est. Priority Date: 06/22/1998
• Status: Abandoned Application

• Current Assignee: Richard E Fulton, William Richard Dubrul
• Original Assignee: Richard E Fulton, William Richard Dubrul
• Inventors: Fulton, Richard E., Dubrul, William Richard
• Application Number:
  US11/283,235
• Publication Number:
  US 20060079829A1
• Time in Patent Office: Days
• US Class Current: 604/15
• 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 or resorptive
• 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 an intracorporeal delivery cannula and at least one marker disposed within an inner lumen of the delivery cannula. The marker includes an expandable fibrous body with at least one radiographically detectable marker element. The expandable fibrous body may also be bioabsorbable. Methods of use of the device are also described.

Claims

1. An intracorporeal marker delivery device for a tissue site, comprising:

an intracorporeal delivery cannula which has a tissue penetrating distal tip, an inner lumen and a discharge opening in communication with the inner lumen; and

at least one marker disposed within the inner lumen of the delivery cannula which includes an expandable bioabsorbable fibrous body with at least one radiographically detectable marker element.

2. A method of marking to a desired intracorporeal location within a patient, comprising:

(a) providing a delivery cannula having an inner lumen and a discharge opening in a distal portion thereof;

(b) providing at least one marker which includes an expandable bioabsorbable fibrous body with at least one radiographically detectable marker element and which is slidably disposed within the inner lumen of the delivery cannula;

(c) inserting the delivery cannula with the at least one marker into a patient;

(d) advancing the delivery cannula within the patient until the distal portion of the cannula is disposed within a desired intracorporeal location; and

(e) discharging the at least one marker from an opening in a distal portion of the cannula into the desired intracorporeal location.