Patent US3577992A successfully refreshed from Google Patents.
US3577992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve for use with a conduit having a lumen
Assignee: Brunswick Corp
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Filing: 1967-08-31
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Granted: 1971-05-11
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Expires: 1987-08-31
Abstract
Abstract A valve adapter for use with a tubular conduit, such as an inflation-type catheter, having a lumen in the wall thereof. The adapter is arranged to receive the tapered end of a fluid flow duct, such as a hypodermic needle for conducting pumped air through the inflation lumen. The catheter is provided at its inner end with a balloon structure which is enlarged by the air pumped through the lumen to retain the catheter in a body cavity.
Inventors
- 👤 Jack D Merry
- 👤 Fritz Deuschle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:30
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1018; A61M25/10184; A61M25/10185
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
179 words
In a tubular catheter having an end portion, a lumen extending longitudinally in the wall of the catheter, and a radial opening in said end portion providing communication with said lumen, valve structure for controlling fluid flow into and from said lumen through said opening, said valve structure comprising: a housing having an arcuate attachment portion means for sealing said arcuate attachment portion to said end portion about said opening; a connection portion extending outwardly from said attachment portion and defining a passage communicating with said lumen opening through said attachment portion, said connection portion having valve means for accepting the end of a fluid flow duct for transferring fluid through said housing to and from said lumen, said valve means comprising a resilient, inwardly dished wall having a slit in an inner portion thereof biased to a closed condition for yieldingly passing said flow duct end therethrough; and means engaging said valve means for controlling the configuration thereof to effectively maintain said slit in the closed condition other than when a fluid flow duct end is inserted thereinto.
Claim 2
Dependent Claim
179 words
In a tubular catheter having an end portion, a lumen extending longitudinally in the wall of the catheter, and a radial opening in said end portion providing communication with said lumen, valve structure for controlling fluid flow into and from said lumen through said opening, said valve structure comprising: a housing having an arcuate attachment portion means for sealing said arcuate attachment portion to said end portion about said opening; a connection portion extending outwardly from said attachment portion and defining a passage communicating with said lumen opening through said attachment portion, said connection portion having valve means for accepting the end of a fluid flow duct for transferring fluid through said housing to and from said lumen, said valve means comprising a resilient, inwardly dished wall having a slit in an inner portion thereof biased to a closed condition for yieldingly passing said flow duct end therethrough; and means engaging said valve means for controlling the configuration thereof to effectively maintain said slit in the closed condition other than when a fluid flow duct end is inserted thereinto.
Claim 3
Dependent Claim
31 words
The tubular catheter structure of claim 1 wherein said attachment portion is annular and said sealing means includes means bonding said attachment portion of the housing to said conduit end portion.
Claim 4
Dependent Claim
41 words
The tubular catheter structure of claim 1 further including a relatively rigid cap mounted on said connection portion and having an opening therethrough in registry with said valve means slit for receiving and supporting a fluid flow duct end passed therethrough.
Claim 5
Dependent Claim
15 words
The tubular catheter structure of claim 1 wherein said catheter includes a second, inflation lumen.
Claim 6
Dependent Claim
28 words
The tubular catheter structure of claim 1 wherein said means for controlling the configuration of the valve means comprises an annular element disposed concentrically of said valve means.
Claim 7
Dependent Claim
37 words
The tubular catheter structure of claim 1 wherein said valve means comprises a slit wall member and said means for controlling the configuration of the valid means includes annular means engaging one end of said wall member.
Claim 8
Dependent Claim
34 words
The tubular catheter structure of claim 1 wherein said valve means comprises a slit wall member and said means for controlling the configuration of the valve means includes annular means encircling said wall member.
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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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |