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:
Aug. 12, 2008
Filed:
Jan. 14, 2004
Peter J. Littrup, Bloomfield Hills, MI (US);
Alexei V. Babkin, Albuquerque, NM (US);
Robert V. Duncan, Tijeras, NM (US);
Pramod Kerkar, Bloomfield Hills, MI (US);
Sergey T. Boldarev, Moscow, RU;
Peter J. Littrup, Bloomfield Hills, MI (US);
Alexei V. Babkin, Albuquerque, NM (US);
Robert V. Duncan, Tijeras, NM (US);
Pramod Kerkar, Bloomfield Hills, MI (US);
Sergey T. Boldarev, Moscow, RU;
CryoDynamics, LLC, Bloomfield Hills, MI (US);
Abstract
A gas-based cryotherapy probe is provided with a shaft having a closed distal end adapted for insertion into a body. A supply conduit is disposed longitudinally within the shaft for flowing gas towards the distal end, and a return conduit is disposed longitudinally within the shaft for flowing gas from the distal end. The gas is maintained at a lower pressure within the return conduit than in the supply conduit. A heat exchanger is disposed within the shaft in thermal communication with the supply conduit and return conduit to exchange heat from gas in the supply conduit to gas in the return conduit. A vacuum jacket is adapted to provide thermal isolation of the heat exchanger from the shaft.