US3625199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Implantable pressure indicator
Assignee: Fairchild Hiller Corp
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Filing: 1969-11-06
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Granted: 1971-12-07
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Expires: 1989-11-06
Abstract
Abstract An implantable pressure indicator for detecting and indicating abnormal body fluid pressures in a body cavity or canal including a fluid conduit adapted to be connected to the body cavity or canal containing the body fluid whose pressure is to be measured and a distensible member associated with the fluid conduit. The distensible member can consist of a tubular sleeve, an elastic disc, or a longitudinally expandable bellows.
Inventors
- 👤 George D Summers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:37
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/03
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
168 words
A surgically implantable body fluid pressure indicating apparatus for indicating the presence of abnormally high body fluid pressure within a body cavity or canal comprising a nonmetallic implantable fluid conduit adapted to be surgically connected to the body cavity or canal to receive body fluid from the body cavity or canal, said nonmetallic implantable fluid conduit having holes through its walls for permitting fluid to pass therethrough, and an implantable distensible elastic tubular sleeve located around said nonmetallic implantable fluid conduit having its end sections connected to said nonmetallic implantable fluid conduit to form fluidtight seals, said implantable distensible elastic tubular sleeve having a central portion located adjacent to the holes of said implantable fluid conduit that is not connected to said nonmetallic implantable fluid conduit that is free to expand and receive body fluid that is transmitted from the body cavity or canal through said nonmetallic implantable fluid conduit if abnormally high body fluid pressure forces body fluid through the holes of said nonmetallic implantable fluid conduit.
Claim 2
Dependent Claim
168 words
A surgically implantable body fluid pressure indicating apparatus for indicating the presence of abnormally high body fluid pressure within a body cavity or canal comprising a nonmetallic implantable fluid conduit adapted to be surgically connected to the body cavity or canal to receive body fluid from the body cavity or canal, said nonmetallic implantable fluid conduit having holes through its walls for permitting fluid to pass therethrough, and an implantable distensible elastic tubular sleeve located around said nonmetallic implantable fluid conduit having its end sections connected to said nonmetallic implantable fluid conduit to form fluidtight seals, said implantable distensible elastic tubular sleeve having a central portion located adjacent to the holes of said implantable fluid conduit that is not connected to said nonmetallic implantable fluid conduit that is free to expand and receive body fluid that is transmitted from the body cavity or canal through said nonmetallic implantable fluid conduit if abnormally high body fluid pressure forces body fluid through the holes of said nonmetallic implantable fluid conduit.
Claim 3
Dependent Claim
107 words
A surgically implantable body fluid pressure indicating apparatus for indicating the presence of abnormally high body fluid pressure within a body cavity or canal comprising an implantable sealable container having an opening, at least one nonmetallic implantable fluid conduit connected in flow communication to said implantable container and adapted to be surgically connected to the body cavity or canal for receiving body fluid from the body cavity or canal, and an elastic expandable membrane connected to said container and covering the opening of said container, said expandable membrane being adapted to bulge outward in response to body fluid under abnormally high pressure located in said implantable container.
Claim 4
Dependent Claim
107 words
A surgically implantable body fluid pressure indicating apparatus for indicating the presence of abnormally high body fluid pressure within a body cavity or canal comprising an implantable sealable container having an opening, at least one nonmetallic implantable fluid conduit connected in flow communication to said implantable container and adapted to be surgically connected to the body cavity or canal for receiving body fluid from the body cavity or canal, and an elastic expandable membrane connected to said container and covering the opening of said container, said expandable membrane being adapted to bulge outward in response to body fluid under abnormally high pressure located in said implantable container.
Claim 5
Dependent Claim
19 words
The surgically implantable body fluid pressure indicating apparatus of claim 2 wherein said elastic expandable membrane comprises a disc.
Claim 6
Dependent Claim
44 words
The surgically implantable body fluid pressure indicating apparatus of claim 3 wherein said implantable container thaT has an opening comprises a cylinder having a closed end and an open end and wherein the opening of said container is the open end of said cylinder.
Claim 7
Dependent Claim
113 words
A surgically implantable body fluid pressure indicating apparatus for indicating the presence of abnormally high body fluid pressure within a body cavity or canal comprising an elastic hollow bellows, said elastic hollow bellows being expandable lengthwise in response to abnormally high pressure body fluid located in said bellows, at least one tubular conduit adapted to be connected to the body cavity or canal and connected in flow communication to one end of said elastic hollow bellows for receiving body fluid from the body cavity or canal, the other end of said bellows being sealable and means connected to opposite ends of said elastic hollow bellows for indicating the longitudinal expansion of said bellows.
Claim 8
Dependent Claim
113 words
A surgically implantable body fluid pressure indicating apparatus for indicating the presence of abnormally high body fluid pressure within a body cavity or canal comprising an elastic hollow bellows, said elastic hollow bellows being expandable lengthwise in response to abnormally high pressure body fluid located in said bellows, at least one tubular conduit adapted to be connected to the body cavity or canal and connected in flow communication to one end of said elastic hollow bellows for receiving body fluid from the body cavity or canal, the other end of said bellows being sealable and means connected to opposite ends of said elastic hollow bellows for indicating the longitudinal expansion of said bellows.
Claim 9
Dependent Claim
19 words
The surgically implantable body fluid pressure indicating apparatus of claim 5 wherein said indicating means comprise magnetically permeable members.
Claim 10
Dependent Claim
28 words
The surgically implantable body fluid pressure indicating apparatus of claim 6 wherein said magnetically permeable members comprise a magnetically permeable ring disposed about each end of said bellows.
Claim 11
Dependent Claim
97 words
A surgically implantable body fluid pressure indicating apparatus for indicating the presence of abnormally high body fluid pressure within a body cavity or canal comprising an implantable container having an opening, at least two nonmetallic implantable fluid conduits connected in flow communication to said implantable container and being adapted to be surgically connected to the body cavity or canal, and an elastic expandable membrane connected to said container and covering the opening of said container, said expandable membrane being adapted to bulge outward in response to body fluid under abnormally high pressure located in said implantable container.
Claim 12
Dependent Claim
97 words
A surgically implantable body fluid pressure indicating apparatus for indicating the presence of abnormally high body fluid pressure within a body cavity or canal comprising an implantable container having an opening, at least two nonmetallic implantable fluid conduits connected in flow communication to said implantable container and being adapted to be surgically connected to the body cavity or canal, and an elastic expandable membrane connected to said container and covering the opening of said container, said expandable membrane being adapted to bulge outward in response to body fluid under abnormally high pressure located in said implantable container.
Claim 13
Dependent Claim
19 words
The surgically implantable body fluid pressure indicating apparatus of claim 8 wherein said elastic expandable membrane comprises a disc.
Claim 14
Dependent Claim
44 words
The surgically implantable body fluid pressure indicating apparatus of claim 9 wherein said implantable container that has an opening comprises a cylinder having a closed end and an open end and wherein the opening of said container is the open end of said cylinder.
Claim 15
Dependent Claim
122 words
A surgically implantable body fluid pressure indicating apparatus for indicating the presence of abnormally high body fluid pressure within a body cavity or canal comprising an elastic hollow bellows, said elastic hollow bellows being expandable lengthwise in response to abnormally high pressure body fluid located in said bellows, a first tubular conduit adapted to be connected to the body cavity or canal and connected in flow communication to one end of said elastic hollow bellows, a second tubular conduit adapted to be connected to the body cavity or canal and connected in flow communication to the opposite end of said elastic hollow bellows, and means connected to opposite ends of said elastic hollow bellows for indicating the longitudinal expansion of said bellows.
Claim 16
Dependent Claim
122 words
A surgically implantable body fluid pressure indicating apparatus for indicating the presence of abnormally high body fluid pressure within a body cavity or canal comprising an elastic hollow bellows, said elastic hollow bellows being expandable lengthwise in response to abnormally high pressure body fluid located in said bellows, a first tubular conduit adapted to be connected to the body cavity or canal and connected in flow communication to one end of said elastic hollow bellows, a second tubular conduit adapted to be connected to the body cavity or canal and connected in flow communication to the opposite end of said elastic hollow bellows, and means connected to opposite ends of said elastic hollow bellows for indicating the longitudinal expansion of said bellows.
Claim 17
Dependent Claim
19 words
The surgically implantable body fluid pressure indicating apparatus of claim 11 wherein said indicating means comprise magnetically permeable members.
Claim 18
Dependent Claim
28 words
The surgically implantable body fluid pressure indicating apparatus of claim 12 wherein said magnetically permeable members comprise a magnetically permeable ring disposed about each end of said bellows.
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) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |