Cardiac pacemaker
First Claim
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1. A cardiac pacemaker comprising:
- at least first and second means for detecting at least respective first and second attributes of a patient'"'"'s body and for transmitting respective first and second signals representative of said at least respective first and second attributes;
said first and second attributes being representative of exertion of the patient'"'"'s body;
circuitry means for varying at least one pacing parameter as a function of said first and second signals detected in the patient'"'"'s body as input variables, said circuitry means including means for supplying pulses in accordance with said pacing parameter, said input variables being correlated with physical exertion of the patient'"'"'s body;
said pacing parameter being the pacing rate; and
additional circuitry means for uniting said at least two signals to produce a further signal for determining said pacing rate, and which is dependent on said at least two signals.
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Abstract
A cardiac pacer features plural adressable digital memory elements each containing different pulse parameters for the pacing stimulation, address - selecting digital logic circuitry for choosing the characteristics of the pulses to be generated in response to signals derived from plural physiological sensors detecting different exercise - related body function to improve control of the heart during various levels exertion.
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Citations
13 Claims
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1. A cardiac pacemaker comprising:
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at least first and second means for detecting at least respective first and second attributes of a patient'"'"'s body and for transmitting respective first and second signals representative of said at least respective first and second attributes;
said first and second attributes being representative of exertion of the patient'"'"'s body;circuitry means for varying at least one pacing parameter as a function of said first and second signals detected in the patient'"'"'s body as input variables, said circuitry means including means for supplying pulses in accordance with said pacing parameter, said input variables being correlated with physical exertion of the patient'"'"'s body;
said pacing parameter being the pacing rate; andadditional circuitry means for uniting said at least two signals to produce a further signal for determining said pacing rate, and which is dependent on said at least two signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification