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:
Jun. 28, 1994
Filed:
Apr. 27, 1992
William G O'Neill, Ann Arbor, MI (US);
Nelson L Huldin, Pittsfield Township, Washtenaw County, MI (US);
Sheila J Hanson, Mequon, WI (US);
John A Covert, Saline, MI (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
A coronary sinus catheter for the retrograde infusion of cardioplegia solutions into the coronary sinus. The catheter is adapted for improved retention in the coronary sinus. The catheter comprises a catheter tube having infusion, pressure-sensing and balloon-inflation lumens, an inflatable balloon and a pressure sensor tube in fluid communication with the balloon-inflation lumen for sensing pressure in the inflatable balloon. The internal volume of the pressure sensor tube is relatively non-expansible relative to the internal volume of the inflation balloon in normal operation of the catheter. Other aspects of the invention include a constricted portion in the infusion lumen that is believed to eliminate spraying of fluid through the infusion lumen outlet(s), and a temperature sensor strip providing a display on the catheter of the temperature of the infused fluid.