US3880760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connector device for coil-type dialyser
Assignee: Sandoz AG
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Filing: 1973-06-07
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Granted: 1975-04-29
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Expires: 1993-06-07
Abstract
Abstract The invention concerns a novel apparatus for connecting an openended flattened membrane tube of a coil-type dialyser to an open end of a blood conduit, which comprises a base section, a cover section shaped to mate with the base section, the base section and cover section together defining a recess between them to receive the open end of the blood conduit, and a seal operable between the base section and cover section to seal the open end of the membrane tube with the open end of the blood conduit within the membrane tube.
Inventors
- 👤 Romano Flandoli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:56
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/24; B01D61/30; B01D63/00; B01D63/10; B01D63/101
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
113 words
Apparatus for connecting an open-ended flattened membrane tube of a coil-type dialyser to an open end of a blood conduit, which comprises a base section, a cover section shaped to mate with the base section, the base section and cover section together form a core about which the flattened membrane tube and membrane support material may be spirally wound, the base section and cover section together further defining a recess between them to receive the open end of the blood conduit, and a seal operable between the base section and cover section to seal the open end of the membrane tube with the open end of the blood conduit within the membrane tube.
Claim 2
Dependent Claim
113 words
Apparatus for connecting an open-ended flattened membrane tube of a coil-type dialyser to an open end of a blood conduit, which comprises a base section, a cover section shaped to mate with the base section, the base section and cover section together form a core about which the flattened membrane tube and membrane support material may be spirally wound, the base section and cover section together further defining a recess between them to receive the open end of the blood conduit, and a seal operable between the base section and cover section to seal the open end of the membrane tube with the open end of the blood conduit within the membrane tube.
Claim 3
Dependent Claim
33 words
Apparatus according to claim 1 wherein the base section and cover section are provided with membrane recesses into which the flattened membrane tube may expand when blood is passed through the membrane tube.
Claim 4
Dependent Claim
36 words
Apparatus according to claim 1 wherein the membrane recesses radiate outwardly from the assembled position taken by the opening in the open end of the blood conduit towards the closed edges of the flattened membrane tube.
Claim 5
Dependent Claim
115 words
Apparatus for connecting an open-ended flattened membrane tube of a coil-type dialyser to an open end of a blood conduit, which comprises a base section, a cover section shaped to mate with the base section, the base section and cover section together form a hollow cylindrical casing within which the flattened membrane tube and membrane support material may be spirally wound, the base section and cover section together further defining a recess between them to receive the open end of the blood conduit, and a sealed operable between the base section and cover section to seal the open end of the membrane tube with the open end of the blood conduit within the membrane tube.
Claim 6
Dependent Claim
115 words
Apparatus for connecting an open-ended flattened membrane tube of a coil-type dialyser to an open end of a blood conduit, which comprises a base section, a cover section shaped to mate with the base section, the base section and cover section together form a hollow cylindrical casing within which the flattened membrane tube and membrane support material may be spirally wound, the base section and cover section together further defining a recess between them to receive the open end of the blood conduit, and a sealed operable between the base section and cover section to seal the open end of the membrane tube with the open end of the blood conduit within the membrane tube.
Claim 7
Dependent Claim
33 words
Apparatus according to cLaim 4 wherein the base section and cover section are provided with membrane recesses into which the flattened membrane tube may expand when blood is passed through the membrane tube.
Claim 8
Dependent Claim
36 words
Apparatus according to claim 4 wherein the membrane recesses radiate outwardly from the assembled position taken by the opening in the open end of the blood conduit towards the closed edges of the flattened membrane tube.
References Cited (Backward Citations)
US3397790A
Cited
US3508662A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |