公开(公告)号：WO1989011244A1

公开(公告)日：1989-11-30

申请号：PCT/US1989002132

申请日：1989-05-17

Applicant: DATA SCIENCES, INC.

Inventor： DATA SCIENCES, INC. ,  BROCKWAY, Brian, P. ,  MILLS, Perry, A. ,  MILLER, Jonathan, T.

IPC: A61B05/00

CPC classification number: G01L19/141 ,  A61B5/0031 ,  A61B5/0215 ,  A61B5/03 ,  A61B5/6882 ,  G01L19/0061 ,  G01L19/0084 ,  G01L19/147 ,  H01L2224/48091 ,  H01L2924/16152 ,  Y10S128/903 ,  H01L2924/00014

Abstract: Measurement of a physiological pressure is accomplished by placement of a pressure transmitting catheter (20) within a blood vessel or other structure within which pressure is to be measured. The catheter (20) is blood-compatible, capable of withstanding handling during distribution and implantation, and provides adequate pressure transmission frequency response in a variety of applications. The catheter (20), which includes a hollow tube filled with a low viscosity fluid (29) and having a plug (30) of a gel-like material at its distal end (22), transmits the pressure signal to a solid-state transducer (16) which is typically connected to amplifying electronics and an implantable radio-transmitter (18) capable of relaying the pressure information from within the body to a radio receiver external to the body.