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1. (WO1991017703) APPARATUS AND METHOD FOR MONITORING CARDIAC OUTPUT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/017703 International Application No.: PCT/GB1991/000784
Publication Date: 28.11.1991 International Filing Date: 17.05.1991
Chapter 2 Demand Filed: 03.12.1991
IPC:
A61B 5/028 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
02
Measuring pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography; Heart catheters for measuring blood pressure
026
Measuring blood flow
0275
using tracers, e.g. dye dilution
028
by thermo-dilution
Applicants:
CPEC CORPORATION [US/US]; 7111 Garden Grove Blvd. Suite 220 Garden Grove, CA 92641, US
NASHEF, Samer, Abdel-Malik [GB/GB]; GB
Inventors:
NASHEF, Samer, Abdel-Malik; GB
Agent:
HOUGHTON, David ; Hulse & Co. Cavendish Buildings West Street Sheffield S1 1ZZ, GB
Priority Data:
9011259.019.05.1990GB
Title (EN) APPARATUS AND METHOD FOR MONITORING CARDIAC OUTPUT
(FR) APPAREIL ET PROCEDE DE SURVEILLANCE DE DEBIT CARDIAQUE
Abstract:
(EN) An apparatus for measuring fluid flow rate and cardiac output comprises a support member (12, 32) having a distal end (14, 34), a proximal end (16, 36) and an outer wall (18, 38). A first temperature sensing means (20, 44) is positioned on said outer wall (18, 38) with a second temperature sensing means (22, 46) positioned on said outer wall (18, 38) proximal to said first temperature sensing means (20, 44). Heating means (24, 26, 48) is also positioned on said outer wall (18, 38) juxtaposed to said first temperature sensing means (20, 44). Thus, by energising the heating means (24, 26, 48) a temperature differential between the first and second temperature sensing means (20, 22, 44, 46) is established. The energy required to maintain the temperature differential can be controlled and monitored, and correlated to fluid flow rate and cardiac output.
(FR) Un appareil servant à mesurer la vitesse d'écoulement de fluides et le débit cardiaque comprend un élément de support (12, 32) pourvu d'une extrémité distale (14, 34), d'une extrémité proximale (16, 36) et d'une paroi externe (18, 38). Un premier élément de détection de température (20, 44) est situé sur ladite paroi externe (18, 38) à proximité d'un second élément de détection de température (22, 46) situé sur la même paroi externe (18, 38). Des éléments de chauffage (24, 26, 48), qui sont aussi placés sur ladite paroi externe (18, 38), sont juxtaposés audit premier élément de détection de température (20, 44). Ainsi, en excitant les éléments de chauffage (24, 26, 48), on permet d'établir un différentiel de température entre les premier et second éléments de détection de température (20, 22, 44, 46). L'énergie requise pour maintenir ce différentiel de température peut être réglée et surveillée, et mise en correspondance avec la vitesse d'écoulement de fluides et le débit cardiaque.
Designated States: AU, BR, CA, JP, KR
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0530308JPH05508567CA2081453AU1991080805