US3688092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable pacemaker pulse counter
Assignee: Individual
•
Filing: 1970-07-23
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Granted: 1972-08-29
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Expires: 1990-07-23
Abstract
Abstract A portable pacemaker pulse counter for recording the number of electrical impulses provided by a pacemaker. The pulse counter has a signal-receiving section for receiving a signal each time an electrical impulse is transmitted to the heart by the pacemaker, and the pulse counter also has a counting section for counting the number of signals received, these signals being transmitted to the counter through a transmission section. The above sections all are combined together into a small, miniaturized, light-weight unit small enough to be carried about comfortably on one''s person in a pocket or the like.
Inventors
- 👤 Frederick Shlisky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:55
CPC Classifications
H; H03; H03K; H03K21/00; H03K21/02; A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/36; A61N1/362; A61N1/37; A61N1/3706
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
161 words
A portable pacemaker pulse counter comprising a signalreceiving means for receiving a signal from a demand type of pacemaker each time the latter provides an electrical impulse, said signal-receiving means including an input means for constantly detecting over a long period of time during use of the pulse counter whether or not operation of the pacemaker occurs and for rendering said signal-receiving means responsive to an electrical impulse of a pacemaker, counting means for counting the total number of signals received by said signal-receiving means from the time the counting means starts operating till the time it stops operating, and transmission means situated between and operatively connected with said signal-receiving means and said counting means for transmitting a signal from said signalreceiving means to said counting means to be counted by the latter, all of said means together forming a miniaturized unit small enough and light enough to be comfortably carried about on one''s person in a pocket or the like.
Claim 2
Dependent Claim
161 words
A portable pacemaker pulse counter comprising a signalreceiving means for receiving a signal from a demand type of pacemaker each time the latter provides an electrical impulse, said signal-receiving means including an input means for constantly detecting over a long period of time during use of the pulse counter whether or not operation of the pacemaker occurs and for rendering said signal-receiving means responsive to an electrical impulse of a pacemaker, counting means for counting the total number of signals received by said signal-receiving means from the time the counting means starts operating till the time it stops operating, and transmission means situated between and operatively connected with said signal-receiving means and said counting means for transmitting a signal from said signalreceiving means to said counting means to be counted by the latter, all of said means together forming a miniaturized unit small enough and light enough to be comfortably carried about on one''s person in a pocket or the like.
Claim 3
Dependent Claim
18 words
The combination of claim 1 and wherein all of said means form parts of a transistorized electrical circuit.
Claim 4
Dependent Claim
28 words
The combination of claim 2 and wherein a battery is operatively connected with said circuit to provide energy therefor, said bAttery also forming part of said miniaturized unit.
Claim 5
Dependent Claim
67 words
The combination of claim 3 and wherein said signal-receiving means has during use of the pulse counter a connection to a pacemaker, said circuit including a buffer stage forming said signal-receiving means and insulating the miniaturized unit from a pacemaker connected thereto, a monostable multivibrator stage forming said signal-transmitting means, and a driver-counter stage forming said counting means for counting the signals received by said buffer stage.
Claim 6
Dependent Claim
65 words
The combination of claim 4 and wherein said buffer stage includes a high input impedance to be situated between the pacemaker and the miniaturized unit. 6. The combination of claim 4 and wherein a comparator stage is situated between the buffer stage and the monostable multivibrator stage for adjusting the threshold voltage of the pulses which provide signals to be transmitted to said driver-counter stage.
Claim 7
Dependent Claim
34 words
The combination of claim 3 and wherein a testing means is provided for testing the battery, and switch means for optionally connecting the battery either with the transistorized circuit or with the testing means.
Claim 8
Dependent Claim
37 words
The combination of claim 4 and wherein said drivercounter stage includes a totalizer for numerically totalizing the number of signals and rendering the total number of said signals immediately visible at the exterior of the miniaturized unit.
References Cited (Backward Citations)
US2756741A
Cited
US3599627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |