Patent US3662743A successfully refreshed from Google Patents.
US3662743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure transducer for catheter pressure measurement
Assignee: Corometrics Medical Systems Inc
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Filing: 1970-01-22
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Granted: 1972-05-16
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Expires: 1990-01-22
Abstract
Abstract This specification primarily relates to a device for detecting pressure and pressure changes in a remote area and particularly in internal cavities through liquid coupling. A liquid filled tubing is inserted into the area to be monitored and coupled to an external transducer. A mounting for the transducer includes means to facilitate complete liquid filling of the tubing and exhaustion of air therefrom.
Inventors
- 👤 Joseph A Amarante
- 👤 Robert E Montgomery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:39
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/43; A61B5/4306; A61B5/4343; A61B5/4362; A61B5/03; A61B5/033; A61B5/035; A61B5/24; A61B5/25; A61B5/279; A61B5/28; A61B5/283; A61B5/288
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
177 words
A condition sensing device comprising a housing member having a passage therethrough and terminating in an external tapered surface, a closure member carried by said housing member for permitting egress of fluid from one end of said passage and for sealing said passage against egress of fluid therefrom, said closure member having a complimentary internal tapered surface adapted to make sealing contact with said external tapered surface, means on said housing member for connecting a catheter to the other end of said passage and a pressure-sensitive transducer carried by said housing member in pressure sensing communication with said passage and arranged to sense pressure of fluid therein, means on said closure member for lockingly engaging the housing member beyond said tapered surfaces thereof so that when said closure member is advanced onto said housing member a predetermined distance said tapered surfaces engage and provide a fluid seal, said closure member having a vent passage defined therein to vent the passage in the housing member to the ambient atmosphere when said tapered surfaces are not in sealing engagement.
Claim 2
Dependent Claim
177 words
A condition sensing device comprising a housing member having a passage therethrough and terminating in an external tapered surface, a closure member carried by said housing member for permitting egress of fluid from one end of said passage and for sealing said passage against egress of fluid therefrom, said closure member having a complimentary internal tapered surface adapted to make sealing contact with said external tapered surface, means on said housing member for connecting a catheter to the other end of said passage and a pressure-sensitive transducer carried by said housing member in pressure sensing communication with said passage and arranged to sense pressure of fluid therein, means on said closure member for lockingly engaging the housing member beyond said tapered surfaces thereof so that when said closure member is advanced onto said housing member a predetermined distance said tapered surfaces engage and provide a fluid seal, said closure member having a vent passage defined therein to vent the passage in the housing member to the ambient atmosphere when said tapered surfaces are not in sealing engagement.
Claim 3
Dependent Claim
37 words
The device of claim 1 further including a transducer mounting member, said transducer being carried by said mounting member, a boss defined in said housing member to said passage, said mounting member being received in said boss.
Claim 4
Dependent Claim
23 words
The device of claim 1 further including a base member defining an arcuate surface, said housing member being mounted to said base member.
Claim 5
Dependent Claim
25 words
The device of claim 1 further including an electrically conductive terminal carried by said base member and adapted to contact the skin of a patient.
Claim 6
Dependent Claim
37 words
The device of claim 1 further including a catheter coupled to said catheter coupling means, said catheter including a puncture self-sealing portion to permit liquid to be injected into said passage through the wall of said catheter.
Claim 7
Dependent Claim
26 words
The device of claim 1 where said means for lockingly engaging comprise threads on said closure member adapted to engage mating threads on said housing member.
Claim 8
Dependent Claim
148 words
A condition sensing device comprising a housing member having a passage therethrough, closure means carried by said member for permitting egress of fluid from one enD of said passage and for sealing said passage against egress of fluid therefrom, means on said member for connecting a catheter to the other end of said passage and a pressure-sensitive transducer carried by said housing member in communication with said passage and arranged to sense pressure of fluid therein, a base member defining a surface adapted to contact a patient, said housing member being mounted to said base member, an electrically conductive member carried by said base member arranged to contact the skin of a patient, a pair of electrical terminals carried by said base member and a shielded electrical lead-out cable having lines connected to said terminals, the shield of said cable being electrically connected to said electrically conductive member.
Claim 9
Dependent Claim
148 words
A condition sensing device comprising a housing member having a passage therethrough, closure means carried by said member for permitting egress of fluid from one enD of said passage and for sealing said passage against egress of fluid therefrom, means on said member for connecting a catheter to the other end of said passage and a pressure-sensitive transducer carried by said housing member in communication with said passage and arranged to sense pressure of fluid therein, a base member defining a surface adapted to contact a patient, said housing member being mounted to said base member, an electrically conductive member carried by said base member arranged to contact the skin of a patient, a pair of electrical terminals carried by said base member and a shielded electrical lead-out cable having lines connected to said terminals, the shield of said cable being electrically connected to said electrically conductive member.
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |