HEART STIMULATING DEVICE
First Claim
1. A device adapted for implantation in the human body for electrically stimulating the heart comprising an envelope housing, an alternating-current generator contained within said housing having a rotor mounted for rotational movement, said rotor having the form of a permanent magnet, a shaft rotatably journaled within said housing, a balance mounted for oscillatory rotational movement about said shaft, the axis of rotation of said rotor being parallel and eccentric to said shaft about which the balance oscillates, a resilient member connected between said housing and the balance, a rotatable member connected with the balance being driven thereby and arranged coaxially with said rotor, a mechanical coupling connecting said rotatable member with said rotor for driving same when said rotatable member is driven by said balance, and electrical contact means connected between said alternating-current generator and the heart muscle for supplying electrical pulses to the heart so as to stimulate the same.
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Accused Products
Abstract
A device for stimulating the action of the heart is implanted and supplies electric pulses to the heart muscle. The device includes a balance activated by heart movement which oscillates a rotor of an alternating-current generator. Rotation of the rotor within the generator'"'"''"'"'s magnetic field provides electric pulses communicated to the heart for stimulating its action.
27 Citations
7 Claims
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1. A device adapted for implantation in the human body for electrically stimulating the heart comprising an envelope housing, an alternating-current generator contained within said housing having a rotor mounted for rotational movement, said rotor having the form of a permanent magnet, a shaft rotatably journaled within said housing, a balance mounted for oscillatory rotational movement about said shaft, the axis of rotation of said rotor being parallel and eccentric to said shaft about which the balance oscillates, a resilient member connected between said housing and the balance, a rotatable member connected with the balance being driven thereby and arranged coaxially with said rotor, a mechanical coupling connecting said rotatable member with said rotor for driving same when said rotatable member is driven by said balance, and electrical contact means connected between said alternating-current generator and the heart muscle for supplying electrical pulses to the heart so as to stimulate the same.
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2. A device as claimed in claim 1, further comprising at least one magnet being disposed near said rotor so as to produce a magnetic field at right angles to the rotor axis.
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3. A device as claimed in claim 1, further comprising a connecting rod arranged between the rotatable member and the balance and a hinge pin mounted on the circumference of said balance for pivotally connecting said rod thereto.
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4. A device as claimed in claim 1, wherein said mechanical coupling comprises a pin attached to said rotary member and a lug mounted on the rotor for abutting against said pin.
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5. A device as claimed in claim 1, further comprising two magnets arranged so as to surround the rotary member and to influence its position in order to prevent it from sticking.
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6. A device as claimed in claim 1, further comprising a generator winding, a capacitor connected across the terminals of the generator winding so that a resonant circuit is produced and an electronic changeover switch coupled to said capacitor which is operated at the instant at which the energy in the resonance circuit is a maximum.
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7. A device as claimed in claim 6, wherein the switch is accommodated in the balance.
Specification