Multiparameter whole blood monitor and method
First Claim
1. A blood monitoring device comprising a body having a proximal and distal transducers spaced apart and connected to both device drivers and recognition and analysis devices, a power source connected to both said device drivers and said recognition and analysis devices, said device driver also connected to said recognition and analysis devices.
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Abstract
The present invention provides an apparatus and methods for continuous intravascular measurement of whole blood concentration, blood pressure, and pulse pressure. The intravascular catheter incorporates a sensor to measure whole blood sound velocity, attenuation, backscatter amplitude, and blood flow velocity and also incorporates existing technologies for multiple physiologic measurements of whole blood. Pulse wave velocity and wave intensity are derived mathematically for purposes of estimating degree of local vascular tone.
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82 Claims
- 1. A blood monitoring device comprising a body having a proximal and distal transducers spaced apart and connected to both device drivers and recognition and analysis devices, a power source connected to both said device drivers and said recognition and analysis devices, said device driver also connected to said recognition and analysis devices.
- 24. The blood monitoring device comprising an intravascular catheter having proximal and distal transducer device therein spaced apart and connected to both drivers and recognition and analysis devices, said transducer devices facing each other with a space therebetween which fills with blood when said catheter is inserted into a vein or artery, said transducer devices including means for measuring sound, speed and blood flow, a power source connected to both said drivers and said recognition and analysis devices, said drivers also being connected to said recognition and analysis devices.
- 48. An apparatus for continuously monitoring blood in the human body comprising of a pair of spaced sensors with blood therebetween, said sensors being connected to both device drivers and recognition and analysis devices, a power source connected to both said device drivers and said recognition analysis devices, said device driver also connected to said recognition analysis devices whereby blood properties can be continuously monitored and compared to normal blood property ranges to suggest care for ill and injured patients.
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73. The method comprising continuously measuring the properties of flowing blood through a blood vessel in a human body, comparing said properties with normal ranges of said properties to suggest care for ill and injured patients.
- 74. The method comprising measuring the sound transmission speed in whole blood, and continuously monitoring blood properties.
- 75. The method comprising measuring whole blood sound speed continuously, displaying said whole blood sound speed, and converting said whole blood sound speed to continuous measurements of blood properties.
Specification