Patent US3941137A successfully refreshed from Google Patents.
US3941137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ambulatory stimulator
Assignee: US Philips Corp
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Filing: 1972-02-24
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Granted: 1976-03-02
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Expires: 1992-02-24
Abstract
Abstract An electro-therapeutic apparatus for stimulation of the locomotive nerves enables activation of both legs in a locomotive cycle by means of pressure impulses originating from a pressure-sensitive medium provided underneath the ball of one of the feet. A pressure-cell which is closed by a bimorph plate of piezoelectric material is used as the switching element for converting pressure impulses into electric pulses.
Inventors
- 👤 Jakob Vredenbregt
- 👤 Antonius Maria Klomp
- 👤 Adrianus Cornelis Maria Hurkmans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:57
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/94; H03K17/96; H03K17/964; A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/36; A61N1/36003; H10; H10N; H10N30/00; H10N30/30; H10N30/308; H01; H01H; H01H3/00; H01H3/02; H01H3/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
An electro-therapeutic apparatus for the stimulation of locomotive organisms which normally function inadequately comprising a pressure-sensitive mechanism located underneath the ball of a foot of one of the legs of the patient for producing periodic pressure pulses, a switching element connected with said mechanism being activated by said pressure pulses from said mechanism for producing electric pulses, stimulator means connected to said switching element having a stimulatory electrode carried on each leg of the patient each being periodically activated by said electric pulses in response to said pressure pulses originating from said pressure sensitive mechanism, said electrodes comprising a central electrode element, a second electrode surrounding said central electrode, insulating means provided between said central and second electrodes, said second electrode being made of an electrically conducting gauze, and an electrically conducting rubber element for providing contact between said second electrode and the skin of the patient.
Claim 2
Dependent Claim
147 words
An electro-therapeutic apparatus for the stimulation of locomotive organisms which normally function inadequately comprising a pressure-sensitive mechanism located underneath the ball of a foot of one of the legs of the patient for producing periodic pressure pulses, a switching element connected with said mechanism being activated by said pressure pulses from said mechanism for producing electric pulses, stimulator means connected to said switching element having a stimulatory electrode carried on each leg of the patient each being periodically activated by said electric pulses in response to said pressure pulses originating from said pressure sensitive mechanism, said electrodes comprising a central electrode element, a second electrode surrounding said central electrode, insulating means provided between said central and second electrodes, said second electrode being made of an electrically conducting gauze, and an electrically conducting rubber element for providing contact between said second electrode and the skin of the patient.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |