Patent US3780870A successfully refreshed from Google Patents.
US3780870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial body member
Assignee: Individual
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Filing: 1972-02-22
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Granted: 1973-12-25
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Expires: 1992-02-22
Abstract
Abstract Artificial body member, such as a kidney or lung wherein either impurities are removed from blood or oxygen added thereto. The artificial body member includes a pleated web defining alternating first and second flow paths for blood in a treating fluid with the flow paths being maintained for the flow of fluids therethrough by means of spacers, the spacers being in the form of folded strips of mesh web material, this whole assembly being a core which is disposed within a housing and the housing having manifolds for the distribution of fluids.
Inventors
- 👤 W Esmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:10
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/24; B01D61/28; B01D63/00; B01D63/14; B01D2313/00; B01D2313/14
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
179 words
An artificial body member including a fluid transfer core and means for controlling flow into and from said core, said core comprising a pleated web defining alternating first and second flow paths for blood and a treating fluid, and spacer means positioned within said flow paths for maintaining a spaced relation between adjacent pleats of said web, said spacer means including a mesh web material through which fluids may freely flow, said mesh web material being reversely folded upon itself and being of a double ply construction with the plies having a tendency to open, said mesh web material including individual first web members disposed in opposite end portions only of said first flow paths and second web members disposed in central portions only of said second flow paths, said first flow path being free of obstructions in alignment with said second web members, and said second web members being of a length less than the spacing between said first web members thereby forming fluid inlet and discharge areas adjacent opposite ends of said core for said flow paths.
Claim 2
Dependent Claim
179 words
An artificial body member including a fluid transfer core and means for controlling flow into and from said core, said core comprising a pleated web defining alternating first and second flow paths for blood and a treating fluid, and spacer means positioned within said flow paths for maintaining a spaced relation between adjacent pleats of said web, said spacer means including a mesh web material through which fluids may freely flow, said mesh web material being reversely folded upon itself and being of a double ply construction with the plies having a tendency to open, said mesh web material including individual first web members disposed in opposite end portions only of said first flow paths and second web members disposed in central portions only of said second flow paths, said first flow path being free of obstructions in alignment with said second web members, and said second web members being of a length less than the spacing between said first web members thereby forming fluid inlet and discharge areas adjacent opposite ends of said core for said flow paths.
Claim 3
Dependent Claim
38 words
The artificial body member of claim 1 wherein a third web member is disposed within each of said second flow paths, said third web members having remote edges generally aligned with remote edges of said first web members.
Claim 4
Dependent Claim
23 words
The artificial body member of claim 2 wherein each third web member is nested within a respective one of said second web members.
Claim 5
Dependent Claim
59 words
The artificial member of claim 1 wherein said flow controlling means includes a separable and reusable housing snugly receiving said core and having manifold portions associated with said core, said housing including two opposing C-shaped housing members with one housing member receiving said core and the other housing being telescoped over said one housing member and sealed relative thereto.
Claim 6
Dependent Claim
19 words
The artificial body member of claim 4 wherein sealing means seal opposite ends of said core and said housing.
Claim 7
Dependent Claim
23 words
The artificial body member of claim 1 wherein said web members open in the same direction as the respective ones of said pleats.
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) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |