Vital function monitor
First Claim
1. A multi-function patient monitor arrangment including patient heartbeat rate monitor means, patient body temperature monitor means, and patient oxygen concentration sensor means, power supply means to supply direct current voltage at positive source voltage V1, first voltage regulator means connected to the output of power supply and having first and second and third output means to supply positive dc voltage V2 where the voltage V2 is less than V1, second voltage regulator having an input connected to an said third output from said first voltage regulator and having first and second voltage regulator output means to supply a voltage V3 which is negative, relative to voltages V1 and V2 wherein said first output of said first voltage regulator means is supplied only to said heartbeat rate monitor means and second output means is supplied to said patient body temperature monitor means and said patient oxygen concentration sensor means and said first output of the second voltage regulator means is selectively supplied to said patient heartbeat rate monitor means and said second second voltage regulator means output is supplied to said patient temperature monitor means and said patient oxygen concentration monitor means.
1 Assignment
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Accused Products
Abstract
A multi-function portable patient monitor arrangement having minimal power requirements particularly useful in association with patient transport apparatus to monitor patient functions such as, monitor means to monitor rate of patient heartbeat, body temperature monitor means to detect patient body temperature and patient environment oxygen monitor means to monitor inspired oxygen concentrations in the patient environment, including a direct current voltage at positive source voltage V1 supplied to first voltage reduction means where a positive voltage V2 is supplied at an output from the first voltage reduction means to patient heartbeat monitor means, patient body temperature monitor means, to patient environment oxygen monitor means and to second voltage regulator means where the second voltage regulation means provides output at negative voltage V3 relative to V2 to provide power to the patient body temperature sensor means environmental oxygen monitor means and the heartbeat monitor means.
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Citations
7 Claims
- 1. A multi-function patient monitor arrangment including patient heartbeat rate monitor means, patient body temperature monitor means, and patient oxygen concentration sensor means, power supply means to supply direct current voltage at positive source voltage V1, first voltage regulator means connected to the output of power supply and having first and second and third output means to supply positive dc voltage V2 where the voltage V2 is less than V1, second voltage regulator having an input connected to an said third output from said first voltage regulator and having first and second voltage regulator output means to supply a voltage V3 which is negative, relative to voltages V1 and V2 wherein said first output of said first voltage regulator means is supplied only to said heartbeat rate monitor means and second output means is supplied to said patient body temperature monitor means and said patient oxygen concentration sensor means and said first output of the second voltage regulator means is selectively supplied to said patient heartbeat rate monitor means and said second second voltage regulator means output is supplied to said patient temperature monitor means and said patient oxygen concentration monitor means.
Specification