公开(公告)号：WO1990015572A1

公开(公告)日：1990-12-27

申请号：PCT/US1990003424

申请日：1990-06-15

Applicant: SYNETICS MEDICAL, INC.

Inventor： SYNETICS MEDICAL, INC. ,  BOMBECK, C., Thomas, IV

IPC: A61B05/05

CPC classification number: A61B5/14542 ,  A61B5/037 ,  A61B5/14539 ,  A61B5/1473 ,  A61B5/6853

Abstract: An intraesophageal catheter (10) comprising a tubular body (12), a pH sensor (14) extending through the interior of the tubular body (12) for pH measurement, and a balloon inflation pressure sensor (16) communicating with the interior of the tubular body. The tubular body (12) is comprised of clear polyvinyl chloride material and has a radiopaque stripe (22) extending longitudinally along the tubular body. A plurality of circumferential gradations (24) are marked on the tubular body. The pH sensor has a head portion (30) fastened to the end of the tubular body and a conductor (32) connected to and extending from the head portion to the other end of the tubular body. The head portion is comprised of a polycarbonate material having a smooth surface. The balloon inflation pressure sensor is a balloon (50) that is positioned on the tubular body apart from the head portion of the pH sensor. A balloon inflation channel (40) extends through the interior of the tubular body and communicates with the balloon molded to the exterior surface of the tubular body.