Surgery – Truss – Pad
Patent
1994-09-29
1997-03-18
Sykes, Angela D.
Surgery
Truss
Pad
128692, 128713, 128736, A61B 5028
Patent
active
056113382
ABSTRACT:
A multi-lumen, multi-purpose cardiac catheter which incorporates optical filaments and an optical coupler for use with external apparatus for determining the oxygen concentration in the blood of a patient under critical care conditions, as well as incorporating therein a thermal element useable with a second external apparatus for measurement of continuous cardiac output. The thermal element is disposed at a necked down portion of the catheter at the distal end thereof, with at least one of the lumens of the catheter substantially compressed at the necked down portion thereof. The catheter also includes a thermistor and at least one injectate port for enabling the user to also conduct thermal dilution readings and obtain intermittent measurements of cardiac output. The combination of a thermal dilution catheter with a SVO.sub.2 catheter and a continuous cardiac output catheter gives the multi-purpose catheter above described substantial versatility as well as providing the user with a versatile cardiac catheter device which enables him to conduct multiple evaluations of disparate blood-related parameters which require the use of separate apparatus. Simply by switching from one external apparatus to the other, the user can obtain readings for different blood-related parameters useful in the treatment of the cardiac patient.
REFERENCES:
patent: 4217910 (1980-08-01), Khalil
patent: 4776340 (1988-10-01), Moran et al.
patent: 4785823 (1988-11-01), Eggers et al.
patent: 4941475 (1990-07-01), Williams et al.
patent: 5435308 (1995-07-01), Gallup et al.
Ambrisco William A.
Gallup David A.
Hughes Timothy J.
Pantages Anthony J.
Sarge Jeffrey A.
Abbott Laboratories
Hannum David C.
Sykes Angela D.
Thibault Harry G.
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