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. 27, 1986
Filed:
Jun. 27, 1984
Applicant:
Inventor:
Gernot R Hilse, Woodinville, WA (US);
Assignee:
Advanced Technology Laboratories, Inc., Bothell, WA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604159 ; 128305 ;
Abstract
The present invention relates to a seal for a rotatable therapeutic catheter, such as a motor driven therapeutic catheter. The seal is made of a drive shaft which extends through an elongated bushing. The combined drive shaft and bushing form a low-friction axle/bearing combination such that there is little friction between them. In addition, the long restrictive path between the drive shaft and the bushing serves to prevent leakage between them.