Energy saving technique for battery powered inductor
First Claim
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1. Medical treatment apparatus comprising:
- (a) means for applying an electromagnetic field to a treatment site of a patient;
(b) means responsively coupled to said applying means for generating a flow of current and a subsequent flow of current in said applying means;
(c) means responsively coupled to said generation means for interrupting said flow of current in said applying means;
(d) means responsively coupled to said applying means for storing excess energy present in said applying means upon interruption of said flow of current by said interrupting means; and
(e) means responsively coupled to said generating means and said storing means for enabling said generating means to utilize said excess energy for generating said subsequent flow of current.
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Abstract
A battery-powered medical treatment inductor coil generates a pulsed current inducing a magnetic field in the inductor coil for interaction with the patient'"'"'s body. At the end of a pulse, the magnetic field collapses and an energy recovery circuit returns the energy in the collapsing field to the battery to reduce its average drain thus prolonging battery life.
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Citations
5 Claims
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1. Medical treatment apparatus comprising:
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(a) means for applying an electromagnetic field to a treatment site of a patient; (b) means responsively coupled to said applying means for generating a flow of current and a subsequent flow of current in said applying means; (c) means responsively coupled to said generation means for interrupting said flow of current in said applying means; (d) means responsively coupled to said applying means for storing excess energy present in said applying means upon interruption of said flow of current by said interrupting means; and (e) means responsively coupled to said generating means and said storing means for enabling said generating means to utilize said excess energy for generating said subsequent flow of current. - View Dependent Claims (2, 3)
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4. In a medical treatment device having a pulse generator and an output stimulating coil coupled to said pulse generator wherein said pulse generator causes a current to flow through said output stimulating coil in such a manner as to electromagnetically induce current to flow at a treatment site of a patient, the improvement comprising:
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means responsively coupled to said pulse generator for interrupting said flow of said current through said output stimulating coil; means responsively coupled to said output stimulating coil for storing excess energy present in said output stimulating coil upon an interruption of said current by said interrupting means; and means responsively coupled to said storing means and said pulse generator for directing said excess energy to said pulse generator for generation of a subsequent flow of current. - View Dependent Claims (5)
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Specification