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. 26, 1990
Filed:
Apr. 20, 1989
Applicant:
Inventors:
Assignee:
Radisensor AB, Upsala, SE;
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128673 ; 128748 ; 73 / ;
Abstract
The invention relates to a catheter for intravascular pressure measurement. The catheter includes a leader (3) with a transducer (4). The leader is surrounded by an inner sheath (2) with a reduced partial section portion (6) and by an outer sheath (1) arranged around the inner sheath. An end closure (5) joins the outer and inner sheath to each other at the distal end of the catheter to form an outer cavity (9), intended to be pressurized by an outside pressure source, whereby the attenuated partial section sealingly surrounds the leader or transducer (4). Pressure calibration in situ is enabled with the aid of the inventive catheter.