The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 2006
Filed:
Aug. 23, 2005
Applicant:
Dagmar Beyerlein, San Francisco, CA (US);
Inventor:
Dagmar Beyerlein, San Francisco, CA (US);
Assignee:
Advanced Cardiovascular Systems, Inc., Santa Clara, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01G 4/06 (2006.01); A61M 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system for detecting tissue contact and penetration depth. The system comprises a needle sheath having a needle sheath inner diameter and a needle sheath outer diameter. A first conductive region is disposed on the needle sheath inner diameter. A needle having a needle insulation layer on the outer diameter upon which a second conductive region is disposed within the first conductive region. A dielectric layer is disposed between the first conductive tube and the second conductive tube. A capacitance sensor is coupled to the first conductive region and the second conductive region.