Catheter for intravascular pressure measurement

Details Catheter for intravascular pressure measurement Catheter for intravascular pressure measurement

1989-04-20

1990-06-26

Sykes, Angela D.

Surgery

Truss

Pad

128748, 73 4R, A61B 50215

Patent

active

049363107

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.

REFERENCES:
patent: 3831588 (1974-08-01), Rindner
patent: 4712566 (1987-12-01), Hok
patent: 4718425 (1988-01-01), Tanaka et al.

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