Methods and chemical preparations for time-limited marking of biopsy sites

US6161034A · kind A · utility

Assignee

• SenoRx, Inc. · US

Inventors

• Fred H. Burbank · Laguna Niguel, US
• Paul Lubock · Dana Point, US
• Michael L. Jones · Capistrano Beach, US
• Nancy Forcier · Laguna Niguel, US

Key dates

• Filing date: Feb 2, 1999
• Grant date: Dec 12, 2000
• Expiry date: Feb 2, 2019

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/3995
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Detectable markers that may be introduced into a cavity created by removal of a biopsy specimen to mark the location of the biopsy site so that it may be located in a subsequent medical/surgical procedure. The 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 not interfere with imaging of tissues adjacent the biopsy site at a second time point (e.g., 5-7 months) after introduction.