US3906960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical energy converter
Assignee: Individual
•
Filing: 1974-02-25
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Granted: 1975-09-23
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Expires: 1994-02-25
Abstract
Abstract A medical energy converter, implantable in a vessel or heart ventricle or in muscle, with gas filled and sealed housing, generating electricity by a bistable magnet spring system, integrated with a reluctance generator, energy storage and release appropriate for stimulation of the heart, carotidsinus, bladder, etc. and integrateable in a pacemaker electrode.
Inventors
- 👤 Siegfried R Lehr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:11
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056; A61N1/057; A61N1/0573; A61N1/18; A61N1/32; A61N1/36; A61N1/372; A61N1/378; A61N1/3785; H; H02; H02K; H02K35/00; H02K35/06; H02K7/00; H02K7/18; H02K7/1869; H02K7/1876
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
126 words
A medical energy converter implanted in a vessel, a heart ventricle or in muscle comprising: an elongate, thin housing with one side forming an integral, resilient membrane having corrugations around the membrane area and having a predetermined spring constant; a reluctance generator having a magnetic circuit comprising a core with spaced yokes, an armature mounted on said membrane in spaced relation to said yokes and a magnet whose force balances said spring force such that at increasing ambient pressure, the armature moves closer to the yokes and finally latches and at decreasing ambient pressure, the armature is released, jumping outwards; a coil for converting reluctance changes to electric energy and means for applying said energy to the body, the housing being filled with gas and sealed.
Claim 2
Dependent Claim
126 words
A medical energy converter implanted in a vessel, a heart ventricle or in muscle comprising: an elongate, thin housing with one side forming an integral, resilient membrane having corrugations around the membrane area and having a predetermined spring constant; a reluctance generator having a magnetic circuit comprising a core with spaced yokes, an armature mounted on said membrane in spaced relation to said yokes and a magnet whose force balances said spring force such that at increasing ambient pressure, the armature moves closer to the yokes and finally latches and at decreasing ambient pressure, the armature is released, jumping outwards; a coil for converting reluctance changes to electric energy and means for applying said energy to the body, the housing being filled with gas and sealed.
Claim 3
Dependent Claim
74 words
The invention as defined in claim 1, in which said applying means includes a capacitor forming a resonance circuit with said coil which is tuned to the resonance of the membrane and said armature, a diode connecting said coil and the resonance capacitor, a storage capacitor, an electronic switch connecting the resonance capacitor approximately at its maximum voltage to the storage capacitor and means for conducting energy from the storage capacitor to the body.
Claim 4
Dependent Claim
19 words
The invention as defined in claim 2 wherein said conducting means is a transvenous pacemaker electrode containing said housing.
References Cited (Backward Citations)
US3563245A
Cited
US3693625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |