US3971376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for introducing fluids into the body
Assignee: Czech Academy of Sciences
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Filing: 1974-10-02
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Granted: 1976-07-27
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Expires: 1994-10-02
Abstract
Abstract Method and apparatus for feeding fluids to internal body organs. An implant is introduced subcutaneously comprising a capsule having a hollow interior cavity and at least one channel extending outwardly therefrom. The capsule is puncturable by needle injection, so as to be filled with liquid.
Inventors
- 👤 Otto Wichterle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:36
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/0208
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
110 words
Apparatus for supplying fluids in an interior body organ comprising a capsule adapted to be implanted subcutaneously for extended periods of time said capsule having unitary walls formed of substantially non-collapsable self-sealing elastic material penetrable by injection and defining an enclosed bulbous interior cavity of given volume for receipt of fluid, said walls being formed of a hydrophillic elastic gel of sufficient strength to retain its shape and maintain a constant volume during periodic filling and emptying and reseal itself under penetration by injection feeding while implanted, said capsule having a channel exiting therefrom for connection to a conduit for the feeding and withdrawal of fluids to some body organ.
Claim 2
Dependent Claim
110 words
Apparatus for supplying fluids in an interior body organ comprising a capsule adapted to be implanted subcutaneously for extended periods of time said capsule having unitary walls formed of substantially non-collapsable self-sealing elastic material penetrable by injection and defining an enclosed bulbous interior cavity of given volume for receipt of fluid, said walls being formed of a hydrophillic elastic gel of sufficient strength to retain its shape and maintain a constant volume during periodic filling and emptying and reseal itself under penetration by injection feeding while implanted, said capsule having a channel exiting therefrom for connection to a conduit for the feeding and withdrawal of fluids to some body organ.
Claim 3
Dependent Claim
20 words
The apparatus according to claim 1, wherein a penetrable textile is imbedded within said elastic material to reinforce the same.
Claim 4
Dependent Claim
21 words
The apparatus according to claim 2, wherein the reinforcement is in the form of a penetrable textile fabric surrounding said cavity.
Claim 5
Dependent Claim
31 words
The apparatus according to claim 1, including an impenetrable wall imbedded in said material to one side of said cavity providing a barrier against injection through a portion of said capsule.
Claim 6
Dependent Claim
31 words
The apparatus according to claim 4 wherein said capsule is formed so that its dimension in the plane parallel with said wall is substantially larger than in the planes perpendicular thereto.
Claim 7
Dependent Claim
26 words
The apparatus according to claim 1, including extension means located on the exterior of said capsule for fixing and fixedly locating said capsule in the body.
Claim 8
Dependent Claim
38 words
The apparatus according to claim 1, wherein said capsule is shaped as a hollow oblong capsule having an enlarged neck at one end through which said channel passes, said neck having means for connection of a tube thereto.
Claim 9
Independent Claim
44 words
The method of supplying fluid to body organs comprising the steps of implanting subcutaneously a hollow capsule capable of being injected with a fluid, said capsule having at least one exiting channel and connecting to said channel a conduit leading to said body organ.
Claim 10
Independent Claim
44 words
The method of supplying fluid to body organs comprising the steps of implanting subcutaneously a hollow capsule capable of being injected with a fluid, said capsule having at least one exiting channel and connecting to said channel a conduit leading to said body organ.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-27 | 1980-01-26 | 1980-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-27 | 1984-01-26 | 1984-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-27 | 1988-01-26 | 1988-07-27 | $7700.00 | Window Closed / Lapsed |