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:
May. 14, 2013
Filed:
Sep. 18, 2009
John M. Baust, Owego, NY (US);
John G. Baust, Owego, NY (US);
Roy Cheeks, Harper's Ferry, WV (US);
Anthony Robilotto, Binghamton, NY (US);
Kristi Snyder, Candor, NY (US);
John M. Baust, Owego, NY (US);
John G. Baust, Owego, NY (US);
Roy Cheeks, Harper's Ferry, WV (US);
Anthony Robilotto, Binghamton, NY (US);
Kristi Snyder, Candor, NY (US);
Endocare, Inc., Chadds Ford, PA (US);
Abstract
The device of the invention takes the form of a catheter/probe and is a closed loop system in which cryogen is delivered along the length of the catheter/probe to the tip where freezing occurs, and then recirculated. The device is a tube within a tube and comprises a number of parts including supply and return (internal) tubes, outer sheath (external tube) seaJed to the inner tubes at one or both ends with a gas filled lumen between the internal and external tubes. The lumen of the external tube is filled with a saturated gas which solidifies upon cooling, thereby creating a vacuum along the catheter length and providing for insulation between the inner and outer tubes, and preventing freezing along the probe shaft length. The outside surface of the internal tubes is modified to potentiate gas nucleation on the outer surfaces of the internal tubes when cooled.