US3705652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for sterile material exchange
Assignee: Biotest Serum Institut GmbH
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Filing: 1970-03-04
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Granted: 1972-12-12
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Expires: 1990-03-04
Abstract
Abstract An apparatus for the sterile material exchange in solutions, which comprises a conventional membrane in form of a hose, a grid of synthetic material, and a hollow empty hose of synthetic material. The conventional membrane is disposed between the grid of synthetic material and is received in the hose of synthetic material. Hose connections are carried by the hose of synthetic material and are capable of being closed by a protection cap. A sealing device closes jointly both the hoses, and both hoses permit an access capable of closing by another protection cap to the membrane connection. In one embodiment of the apparatus, the hoses are bent at substantially a right angle for insertion into the sealing or closing device. The invention also includes the system of hoses being wound in a double spiral about two tubes of synthetic material.
Inventors
- 👤 Horst Russmann
- 👤 Helmut Determann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:25
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/22; B01D53/228; B01D61/00; B01D61/24; B01D61/28; B01D63/00; B01D63/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
117 words
A dialysis apparatus for sterile material exchange using at least one solution, comprising an inner permeable membrane in the form of a hollow empty hose, a grid of synthetic material, a non-rigid outer hose of synthetic material, said grid of synthetic material being interposed between said inner and outer hoses, hose connections carried by said hose of synthetic material and adapted to be closed by a protection cap, c a closing device which set both said hoses, both said hoses permitting an access adapted to be closed by another protection cap to the membrane connection, and the ends of said inner and outer hoses being bent at substantially a right angle for insertion into said closing device.
Claim 2
Dependent Claim
117 words
A dialysis apparatus for sterile material exchange using at least one solution, comprising an inner permeable membrane in the form of a hollow empty hose, a grid of synthetic material, a non-rigid outer hose of synthetic material, said grid of synthetic material being interposed between said inner and outer hoses, hose connections carried by said hose of synthetic material and adapted to be closed by a protection cap, c a closing device which set both said hoses, both said hoses permitting an access adapted to be closed by another protection cap to the membrane connection, and the ends of said inner and outer hoses being bent at substantially a right angle for insertion into said closing device.
Claim 3
Dependent Claim
19 words
The apparatus, as set forth in claim 1, wherein said access is disposed on both sides of said hoses.
Claim 4
Dependent Claim
17 words
The apparatus, as set forth in claim 1, wherein two accesses are disposed on one side only.
Claim 5
Dependent Claim
19 words
The apparatus, as set forth in claim 1, wherein said hose of synthetic material comprises two foils welded together.
Claim 6
Dependent Claim
27 words
The apparatus, as set forth in claim 1, wherein said membrane comprises a material selected from the group consisting of a regenerated cellulose and a cellulose derivate.
Claim 7
Dependent Claim
19 words
The apparatus, as set forth in claim 1, wherein said membrane is permeable to gases and comprises silicone rubber.
Claim 8
Dependent Claim
18 words
The apparatus, as set forth in claim 1, which includes a grid of synthetic material comprising poly-net-grid material.
Claim 9
Dependent Claim
17 words
The apparatus, as set forth in claim 1, wherein one of said inner- and outer-spaces is sterile.
Claim 10
Dependent Claim
37 words
The apparatus, as set forth in claim 1, wherein said hose of synthetic material has from both sides hose connections capable of being closed at both ends, and said hose connections close up also said hose membrane.
Claim 11
Dependent Claim
41 words
The apparatus, as set forth in claim 1, wherein said hose of synthetic material has at one side closable hose connections, one of said hose connections leads to said hose, and the other of said hose connections leads to said membrane.
Claim 12
Dependent Claim
128 words
A dialysis apparatus for sterile material exchange using at least one solution comprising an inner permeable membrane in the form of a hollow empty hose, a grid of synthetic material, a non-rigid outer hose of synthetic material, said grid of synthetic material being interposed between said inner and outer hoses, hose connections carried by said hose of synthetic material and adapted to be closed by a protection cap, a closing device which closes both said hoses, both said hoses permittinG an access adapted to be closed by another protection cap to the membrane connection, and system of said hoses being wound in a double spiral about two tubes of synthetic material. the system of said hoses being wound in a double spiral about two tubes of synthetic material.
Claim 13
Dependent Claim
128 words
A dialysis apparatus for sterile material exchange using at least one solution comprising an inner permeable membrane in the form of a hollow empty hose, a grid of synthetic material, a non-rigid outer hose of synthetic material, said grid of synthetic material being interposed between said inner and outer hoses, hose connections carried by said hose of synthetic material and adapted to be closed by a protection cap, a closing device which closes both said hoses, both said hoses permittinG an access adapted to be closed by another protection cap to the membrane connection, and system of said hoses being wound in a double spiral about two tubes of synthetic material. the system of said hoses being wound in a double spiral about two tubes of synthetic material.
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) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |