Patent US3659616A successfully refreshed from Google Patents.
US3659616A
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US
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Method of synchronization and stimulation by means of pulse pairs at implanted heart stimulators with constant rhythm and the circuit for implementation of this method
Assignee: Individual
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Filing: 1969-08-28
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Granted: 1972-05-02
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Expires: 1989-08-28
Abstract
Abstract An external rhythm frequency generator is magnetically coupled to a constant rhythm frequency generator of an implanted heart stimulator through an induction coil to provide either externally synchronized pulse pair stimulation or acceleration of the stimulator dependent on the frequency of a signal from the external generator. A relay is provided to control the flow of energy through the coil. A capacitive charging network is provided which discharges through the coil to create an electromagnetic field when the relay is operated. The relay is operated by a triggering circuit, which, in turn, operates the relay in synchronization with the emission of the signal from the external generator.
Inventors
- 👤 Bohdan A Bukowiecki
- 👤 Mariusz Stopczyk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:36
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/36; A61N1/362; H; H03; H03K; H03K3/00; H03K3/02; H03K3/53
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
128 words
A method for providing external synchronization of an additional heart stimulation from an implanted heart stimulator having a constant rhythm frequency generator which normally provides heart stimulations at a predetermined constant rhythm frequency, said stimulator generator having a predetermined period between said normally provided stimulations, said method comprising the steps of: generating an independent external signal at a desired rhythm control frequency which is less thaN the constant rhythm frequency of the stimulator generator, the period of said external signal being greater than the period of said stimulator generator; providing an electromagnetic field from said external signal in synchronization with said signal; and enforcing a generation of said additional stimulation from said generator in accordance with the provision of said electromagnetic field whereby pulse pair stimulation is provided.
Claim 2
Independent Claim
128 words
A method for providing external synchronization of an additional heart stimulation from an implanted heart stimulator having a constant rhythm frequency generator which normally provides heart stimulations at a predetermined constant rhythm frequency, said stimulator generator having a predetermined period between said normally provided stimulations, said method comprising the steps of: generating an independent external signal at a desired rhythm control frequency which is less thaN the constant rhythm frequency of the stimulator generator, the period of said external signal being greater than the period of said stimulator generator; providing an electromagnetic field from said external signal in synchronization with said signal; and enforcing a generation of said additional stimulation from said generator in accordance with the provision of said electromagnetic field whereby pulse pair stimulation is provided.
Claim 3
Dependent Claim
24 words
A method in accordance with claim 1, wherein said enforcing step includes the step of magnetically coupling said stimulator generator within said electromagnetic field.
Claim 4
Independent Claim
128 words
An apparatus for providing external synchronization of an additional heart stimulation from an implanted heart stimulator having a constant rhythm frequency generator which normally provides heart stimulations at a predetermined constant rhythm frequency, the period between said normally provided stimulations being constant, said apparatus comprising: means for generating an independent external signal at a desired rhythm control frequency which is less than the predetermined constant rhythm frequency, the period of said external signal being greater than the period of said stimulator generator, and means for providing an electromagnetic field from said external signal in synchronization with said signal, said providing means being magnetically coupled to said stimulator generator, said stimulation being enforced from said stimulator generator in accordance with said provided field whereby pulse pair stimulation is provided.
Claim 5
Independent Claim
128 words
An apparatus for providing external synchronization of an additional heart stimulation from an implanted heart stimulator having a constant rhythm frequency generator which normally provides heart stimulations at a predetermined constant rhythm frequency, the period between said normally provided stimulations being constant, said apparatus comprising: means for generating an independent external signal at a desired rhythm control frequency which is less than the predetermined constant rhythm frequency, the period of said external signal being greater than the period of said stimulator generator, and means for providing an electromagnetic field from said external signal in synchronization with said signal, said providing means being magnetically coupled to said stimulator generator, said stimulation being enforced from said stimulator generator in accordance with said provided field whereby pulse pair stimulation is provided.
Claim 6
Dependent Claim
70 words
An apparatus in accordance with claim 3, wherein said providing means includes means for storing a signal charge, means for discharging said storage means operatively connected to said storage means, electromagnetic means operatively connected to said discharge means and magnetically coupled to said stimulator generator, said discharge means discharging said storage means through said electromagnetic means in synchronization with the generation of said external signal, whereby said field is provided.
Claim 7
Dependent Claim
49 words
An apparatus in accordance with claim 4 wherein said providing means further includes means for triggering the discharge of said storage means by said discharge means in synchronization with the generation of said external signal, said triggering means being operatively connected between said discharge means and said generation means.
Claim 8
Dependent Claim
19 words
An apparatus in accordance with claim 4, wherein said electromagnetic means includes an inductive impedance and a resistive impedance.
Claim 9
Dependent Claim
15 words
An apparatus in accordance with claim 3, wherein said generation means is a blocking oscillator.
Claim 10
Dependent Claim
24 words
An apparatus in accordance with claim 3, wherein said storage means is a capacitive charging network including a capacitive impedance and a resistive impedance.
References Cited (Backward Citations)
US3057356A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |