US3762555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supporting plates for the membranes of a dialyzer
Assignee: Danske Sukkerfabrikker AS
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Filing: 1971-07-12
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Granted: 1973-10-02
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Expires: 1991-07-12
Abstract
Abstract For use in a dialyzer consisting of a stack of alternate pairs of membranes and supporting plates for these, a supporting plate is provided having connector elements for the supply and discharge of blood moulded in one piece therewith, said connector elements being constructed with a weakened hinging line about which the connector element may be folded from a position entirely outside the contour of the plate to a position in which it overlaps and extends beyond an edge of the plate.
Inventors
- 👤 C Boe
- 👤 S Dawids
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:19
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/24; B01D61/28; B01D63/00; B01D63/08; B01D63/082; B01D63/0821; B01D2313/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
167 words
A supporting plate for the membranes of a dialyzer, particularly for hemodialysis, said plate being provided on both sides with projections adapted to support a membrane and in conjunction with such membrane to form flow paths for the dialysis liquid from one end of the plate to the other, the blood flowing on the opposite side of the membrane, connector elements being provided for clamping between a pair of membranes supported by consecutive supporting plates of a stack of such plates alternating with pairs of membranes, said connector elements having connector passages communicating with inlet and outlet conduits extending transversely of the planes of the supporting plates and membranes, characterized in that each of the connector elements is formed in one piece with a supporting plate, being hingedly connected with the main body thereof in such a manner that upon folding of each connector element about the hinge, the opening of its connector passage provides communication to the blood flow passages between the respective pairs of membranes.
Claim 2
Dependent Claim
167 words
A supporting plate for the membranes of a dialyzer, particularly for hemodialysis, said plate being provided on both sides with projections adapted to support a membrane and in conjunction with such membrane to form flow paths for the dialysis liquid from one end of the plate to the other, the blood flowing on the opposite side of the membrane, connector elements being provided for clamping between a pair of membranes supported by consecutive supporting plates of a stack of such plates alternating with pairs of membranes, said connector elements having connector passages communicating with inlet and outlet conduits extending transversely of the planes of the supporting plates and membranes, characterized in that each of the connector elements is formed in one piece with a supporting plate, being hingedly connected with the main body thereof in such a manner that upon folding of each connector element about the hinge, the opening of its connector passage provides communication to the blood flow passages between the respective pairs of membranes.
Claim 3
Dependent Claim
24 words
A supporting plate as in claim 1, characterized in that the connector passage is open towards one of the surfaces of the connector element.
Claim 4
Dependent Claim
42 words
A supporting plate as in claim 1, characterized in that the connector elements are located at two corners of the plate and are connected with one edge thereof by means of a hinge joint forming an angle of 45* with the edge.
Claim 5
Dependent Claim
60 words
A supporting plate as in claim 1, characterized in that each connector element has a portion which upon folding of the element about the hinge joint extends beyond the contour of the plate and is constructed with a through passage communicating with the connector passage, said through passage forming part of an inlet or outlet conduit of the stacked dialyzer.
Claim 6
Dependent Claim
64 words
A supporting plate as in claim 4 and of the kind having a marginal sealing rib extending along the whole of the periphery of the plate, characterized in that a similar sealing rib is provided around the through passage of the foldable connector element, the sealing rib of the connector element joining that of the plate in the folded position of the connector element.
Claim 7
Dependent Claim
69 words
A supporting plate as in claim 5, characterized in that at both sides of the position where the connector element is folded against the edge of the plate, the marginal sealing rib of the plate is split up into a plurality of parallel ribs, the connector element being provided on both sides of the connector passage with similar rib differing from those of the plate in number and spacing.
References Cited (Backward Citations)
US3612281A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |