| 摘要 |
PCT No. PCT/DE88/00240 Sec. 371 Date Dec. 22, 1988 Sec. 102(e) Date Dec. 22, 1988 PCT Filed Apr. 27, 1988 PCT Pub. No. WO88/08274 PCT Pub. Date Nov. 3, 1988.This invention relates to a catheter (1) and accompanying system for diagnosis of the cardio-vascular system of a patient. The catheter (1) flexible tube body (2), having at least one channel (3) therethrough leading from the extracorporal proximal end to the distal area having a fluid discharge opening (6) is introduced into preformed vessels (31) of the body to extend into the heart for measuring physical parameters representative of the cardiac condition of the patient. A temperature sensor (8) is disposed on the catheter toward the proximal end with respect to the opening (6) at the distal end to allow for diagnostic and interventional measures to be taken in the left heart. Between the opening (6) and the sensor (8) may be disposed a dilatation balloon (7) inflatable from the outside. Also, it is advantageous to provide a second temperature sensor (17) in the area of the distal openings (6) as well as a further opening (21) in the area of the first temperature sensor. An external instrument (34) is used to evaluate and display the physical values determined from the catheter sensors for determination of the cardiac condition of the patient. This single catheter located in the left heart thus provides all the data necessary for analysis of the cardiac performance that heretofore required two separate insertions of a catheter.
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