US3554199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heart stimulating device
Assignee: US Philips Corp
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Filing: 1968-07-05
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Granted: 1971-01-12
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Expires: 1988-07-05
Abstract
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.
Inventors
- 👤 Michel Auphan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:50
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/36; A61N1/362; A61N1/372; A61N1/378; H; H02; H02K; H02K7/00; H02K7/18; H02K7/1807; H02K7/1853
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
151 words
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.
Claim 2
Independent Claim
151 words
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.
Claim 3
Dependent Claim
32 words
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.
Claim 4
Dependent Claim
37 words
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.
Claim 5
Dependent Claim
31 words
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.
Claim 6
Dependent Claim
31 words
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.
Claim 7
Dependent Claim
55 words
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.
Claim 8
Dependent Claim
15 words
A device as claimed in claim 6, wherein the switch is accommodated in the balance.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |