Indicator for cardiac output measurement by thermodilution

Details Indicator for cardiac output measurement by thermodilution Indicator for cardiac output measurement by thermodilution

A - Human Necessities

61

B

326/13.5

A61B 5/02 (2006.01) A61B 5/028 (2006.01)

Patent

CA 1047117

INVENTORS: HERMANN GAHWILER and HANSJORG SCHLAEPFER INVENTION: DIRECT INDICATOR DEVICE FOR DETERMINING THE CARDIAC OUTPUT FLOW RATE ACCORDING TO THE THERMODILUTION METHOD ABSTRACT OF THE DISCLOSURE A direct indicator device for determining the cardiac output according to the thermodilution method em- bodying two temperature sensors connected to the blood cir- culation for respectively determining the inlet- and dilution temperatures. A clock generator and a scaler connected at the output of the clock generator are provided, the scaler forming a control signal. A respective one of the sensors is connected in circuit with inputs of an associated temper- ature-pulse frequency converter, the outputs of which are connected with a respective input of a multiplexer. A control input of the multiplexer connected with the output of the scaler serves for the alternate switching-through of a signal from one input and from the other input of the multiplexer to the output thereof in time-dependent function of the con- trol signal. A gate circuit has one input connected with the output of the multiplexer, another input connected with the output of the clock generator and a further input connected with the output of the scaler. The gate circuit has an output at which there appears the clock rate of the clock generator as a function of time on the one hand of the control signal and on the other hand of the signal at the output of the multiplexer, the output of the gate circuit being connected with the input of a counter. The output of the counter is connected with the input of an intermediate storage, and a control input of the counter and a control input of the inter- mediate storage are connected at the output of the scaler for the summation of the clock repetition rate delivered to the counter and for the storage thereof as a function of time of the control signal. A digital computer has connected therewith a digital indicator device, the computer having in- puts connected respectively with the output of the intermediate storage, the output of the clock generator and the output of the scaler. - 1a -

226167

Affiliated with

Also associated with

Rating

Indicator for cardiac output measurement by thermodilution does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Indicator for cardiac output measurement by thermodilution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Indicator for cardiac output measurement by thermodilution will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-809203