Patent US3970076A successfully refreshed from Google Patents.
US3970076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for heart stimulation
Assignee: Dornier System GmbH
•
Filing: 1975-02-04
•
Granted: 1976-07-20
•
Expires: 1995-02-04
Abstract
Abstract A heart stimulator adapted to be used outside the body comprising pressure wave generating means and coupling means adapted to be placed on the surface of the body in the area of the heart without an air gap.
Inventors
- 👤 Wolfgang Hepp
- 👤 Alexander Wirtzfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:21
CPC Classifications
G; G10; G10K; G10K15/00; G10K15/04; G10K15/06; A; A61; A61H; A61H23/00; A61H23/008; A61H31/00; A61H31/004; A61H31/006; A61N; A61N7/00; A61H2201/00; A61H2201/12; A61H2201/1238; A61N2007/0004; A61N2007/0021; A61N2007/0026
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
38 words
A heart stimulator adapted to be used outside the body comprising pressure wave generating means and coupling means adapted to be placed on the surface of the body in the area of the heart without an air gap.
Claim 2
Dependent Claim
38 words
A heart stimulator adapted to be used outside the body comprising pressure wave generating means and coupling means adapted to be placed on the surface of the body in the area of the heart without an air gap.
Claim 3
Dependent Claim
18 words
A heart stimulator according to claim 1 in which said pressure wave generating means is a spark discharge.
Claim 4
Dependent Claim
16 words
A heart stimulator according to claim 2 including grounding electrodes in proximity to the spark path.
Claim 5
Dependent Claim
23 words
A heart stimulator according to claim 2 including a ball-and-socket joint means and a sliding bearing means whereby said spark path is displaceable.
Claim 6
Dependent Claim
20 words
A heart stimulator according to claim 2 including elastic membrane means filled with an inert gas surrounding the spark path.
Claim 7
Dependent Claim
17 words
A heart stimulator according to claim 5 including inlet and outlet lines for circulating said inert gas.
Claim 8
Dependent Claim
36 words
A heart stimulator according to claim 1 in which said coupling means includes elastic membrane means provided with a vapor-deposited metallic layer on a part thereof adapted to be placed on the surface of the body.
Claim 9
Dependent Claim
33 words
A heart stimulator according to claim 1 in which said coupling means includes an elastic edge adapted to contact the body, and including band means for securing said coupling device to the body.
Claim 10
Dependent Claim
19 words
A heart stimulator according to claim 1 in which said coupling means focuses pressure waves on the heart muscle.
Claim 11
Dependent Claim
48 words
A heart stimulator according to claim 1 in which said coupling means is circular in transverse cross-section and elliptical in longitudinal cross-section, said pressure wave generating means being located in one focal point of the ellipse and the heart muscle in the other focal point of the ellipse.
Claim 12
Dependent Claim
22 words
A heart stimulator according to claim 1 in which said coupling means is filled with water and includes inlet and outlet means.
Claim 13
Dependent Claim
13 words
A heart stimulator according to claim 11 including means for circulating said water.
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) | 1979-07-20 | 1980-01-19 | 1980-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-20 | 1984-01-19 | 1984-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-20 | 1988-01-19 | 1988-07-20 | $7700.00 | Window Closed / Lapsed |