Patent US5235319A successfully refreshed from Google Patents.
US5235319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Patient monitoring system
Assignee: Individual
•
Filing: 1992-05-11
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Granted: 1993-08-10
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Expires: 2012-05-11
Abstract
Abstract A capacitor sensor device for use in conjunction with a monitoring circuit system and call alarm system to perceive a patient movement employs a plurality of elongated electrical conductor devices positioned in horizontal parallel spaced relationship, an electrical insulating material forming an upper layer and lower layer over an about each electrical conductor device whereby the conductor devices are maintained in insulated parallel spaced relationship to each other, and a pair of electrical conductive connectors connected to alternate electrical conductor devices. The sensor device is constructed and arranged so as to be thin and flexible and formed in a selected configuration. In another embodiment, the capacitor sensor device can be used to activate a transmitter for a limited range paging system for a home application.
Inventors
- 👤 Joseph C. Hill
- 👤 Albert P. Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:17
CPC Classifications
G; G08; G08B; G08B21/00; G08B21/18; G08B21/22
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
82 words
A capacitor sensor device for use in conjunction with a monitoring circuit system and call alarm system to perceive a patient movement, said capacitor sensor device comprising: a plurality of elongated electrical conductor means positioned in horizontal parallel spaced relationship; an electrical insulating material forming an upper layer and lower layer over and about each electrical conductor means whereby said conductor means are maintained in insulated parallel spaced relationship to each other, said electrical conductor means being connected to electrical conductive connectors.
Claim 2
Dependent Claim
82 words
A capacitor sensor device for use in conjunction with a monitoring circuit system and call alarm system to perceive a patient movement, said capacitor sensor device comprising: a plurality of elongated electrical conductor means positioned in horizontal parallel spaced relationship; an electrical insulating material forming an upper layer and lower layer over and about each electrical conductor means whereby said conductor means are maintained in insulated parallel spaced relationship to each other, said electrical conductor means being connected to electrical conductive connectors.
Claim 3
Dependent Claim
16 words
The capacitor sensor device according to claim 1 wherein said electrical insulating material is flexible plastic.
Claim 4
Dependent Claim
19 words
The capacitor sensor device according to claim 2 wherein said flexible plastic has a thickness of approximately 0.02 inches.
Claim 5
Dependent Claim
131 words
A monitoring system for bed and chair patients comprising: a capacitor sensor device comprising a plurality of elongated electrical conductor means positioned in horizontal parallel spaced relationship, an electrical insulating material forming an upper layer and lower layer over and about each electrical conductor means whereby said conductor means are maintained in insulated parallel spaced relationship to each other, said electrical conductor means being connected to electrical conductive connectors; a capacitance measurement circuit means connected to the electrically conductive connectors of the capacitor sensor device; a reference voltage comparitor means connected in an electric circuit with said capacitance measurement circuit means; a delay circuit means connected in an electric circuit with said reference voltage comparitor means; and an output circuit means connected in an electrical circuit with said delay circuit means.
Claim 6
Dependent Claim
131 words
A monitoring system for bed and chair patients comprising: a capacitor sensor device comprising a plurality of elongated electrical conductor means positioned in horizontal parallel spaced relationship, an electrical insulating material forming an upper layer and lower layer over and about each electrical conductor means whereby said conductor means are maintained in insulated parallel spaced relationship to each other, said electrical conductor means being connected to electrical conductive connectors; a capacitance measurement circuit means connected to the electrically conductive connectors of the capacitor sensor device; a reference voltage comparitor means connected in an electric circuit with said capacitance measurement circuit means; a delay circuit means connected in an electric circuit with said reference voltage comparitor means; and an output circuit means connected in an electrical circuit with said delay circuit means.
Claim 7
Dependent Claim
17 words
A monitoring system according to claim 4 wherein the electrical insulating material is a plastic laminate material.
Claim 8
Dependent Claim
32 words
A monitoring system according to claim 4 wherein the electrically conductive connectors for the plurality of elongated electrical conductor means comprises two electrical conductors each connecting to alternate elongated electrical conductor means.
Claim 9
Dependent Claim
32 words
A monitoring system according to claim 4 wherein said output circuit means additionally includes means to produce a call signal when selected characteristics occur in said output signal of the capacitor sensor.
Claim 10
Dependent Claim
20 words
A monitoring system according to claim 4 wherein said comparitor means includes means to convert analogue voltage to digital voltage.
Claim 11
Dependent Claim
30 words
A monitoring system according to claim 4 wherein said capacitance measurement circuit means produces a voltage that is proportional to the value of capacitance received from the capacitor sensor device.
Claim 12
Dependent Claim
18 words
A monitoring system according to claim 4 including means for connecting the monitoring system to a power supply.
Claim 13
Dependent Claim
94 words
A capacitor sensor device for use in conjunction with a monitoring circuit system and call alarm system to perceive a patient movement, said capacitor sensor device comprising: a plurality of elongated electrical conductor means positioned in horizontal parallel spaced relationship; an electrical insulating flexible plastic material forming an upper layer and lower layer over and about each electrical conductor means whereby said conductor means are maintained in electrically insulated parallel spaced relationship to each other, and electrical conductive connector means comprising two electrical connector means each connected to alternate parallel elongated electrical conductor means.
Claim 14
Dependent Claim
94 words
A capacitor sensor device for use in conjunction with a monitoring circuit system and call alarm system to perceive a patient movement, said capacitor sensor device comprising: a plurality of elongated electrical conductor means positioned in horizontal parallel spaced relationship; an electrical insulating flexible plastic material forming an upper layer and lower layer over and about each electrical conductor means whereby said conductor means are maintained in electrically insulated parallel spaced relationship to each other, and electrical conductive connector means comprising two electrical connector means each connected to alternate parallel elongated electrical conductor means.
Claim 15
Dependent Claim
142 words
A monitoring system for bed and chair patients comprising: a capacitor sensor device comprising a plurality of elongated electrical conductor means positioned in horizontal parallel spaced relationship, an electrical insulating flexible plastic material forming an upper layer and lower layer over and about each electrical conductor means whereby said conductor means are maintained in electrically insulated parallel spaced relationship to each other, and electrical conductive connector means comprising two electrical conductor means each connected to alternate parallel elongated electrical conductor means; a capacitance measurement circuit means connected to the electrical conductor connectors of the capacitor sensor device; a reference voltage comparitor means connected in an electric circuit with said capacitance measurement means; a delay circuit means connected in an electric circuit with said reference voltage comparitor means; and an output circuit means connected in an electrical circuit with said delay circuit means.
Claim 16
Dependent Claim
142 words
A monitoring system for bed and chair patients comprising: a capacitor sensor device comprising a plurality of elongated electrical conductor means positioned in horizontal parallel spaced relationship, an electrical insulating flexible plastic material forming an upper layer and lower layer over and about each electrical conductor means whereby said conductor means are maintained in electrically insulated parallel spaced relationship to each other, and electrical conductive connector means comprising two electrical conductor means each connected to alternate parallel elongated electrical conductor means; a capacitance measurement circuit means connected to the electrical conductor connectors of the capacitor sensor device; a reference voltage comparitor means connected in an electric circuit with said capacitance measurement means; a delay circuit means connected in an electric circuit with said reference voltage comparitor means; and an output circuit means connected in an electrical circuit with said delay circuit means.
References Cited (Backward Citations)
US3926177A
Cited
US3991746A
Cited
US4179692A
Cited
US4228426A
Cited
US4293852A
Cited
US4700180A
Cited
US4633237A
Cited
US4638307A
Cited
US4796013A
Cited
US4947152A
Cited
US4907845A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-08-09 | 1997-02-08 | 1997-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-09 | 2001-02-08 | 2001-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-09 | 2005-02-08 | 2005-08-10 | $7700.00 | Window Closed / Lapsed |