US4192748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dialysis apparatus with selective chemical activity
Assignee: Individual
•
Filing: 1976-11-02
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Granted: 1980-03-11
•
Expires: 1996-11-02
Abstract
Abstract A compact dialysis unit having a dialysis membrane forming a partition between a liquid to be dialyzed and a dialysate, at least that surface of the membrane facing the liquid to be dialyzed having a selectively chemically active therapeutic substance fixed thereon and a selectively acting adsorbent in the dialysate circuit. Preferably, the dialysate circuit includes at least one dosimeter and a safety warning system.
Inventors
- 👤 Viktor H. Hyden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:27
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/24; B01D61/28; A; A61; A61M; A61M1/00; A61M1/14; A61M1/16; A61M1/1692; A61M1/1694; A61M1/1696; A61M1/36; A61M1/3687; B01D61/32; B01D69/00; B01D69/10; B01D69/105; A61M1/26; B01D2313/00; B01D2313/22
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
161 words
A dialysis apparatus comprising a dialysate container, cover means for said dialysate container, a dialysis container mounted on said cover means, said dialysis container having an inlet means and an outlet means, spectrometer means mounted on said cover means, a first fluid circuit means connecting said dialysis container and said dialysate container through said spectrometer means, said first fluid circuit including purification means in said dialysate container, a dialysis membrane for permitting passage of substances with molecular weights of up to between 10,000-15,000 removably mounted in said dialysis container and having a selectively chemically active therapeutic substance insolubilized on at least the surface facing the liquid to be dialyzed, pump means mounted on said cover means for pumping dialysate from said dialysate container to said dialysis container, a second fluid circuit means connecting said pump means with said dialysate container and said dialysis container, and at least one dosimeter means on said dialysate container for metering fluid into said dialysate container.
Claim 2
Dependent Claim
161 words
A dialysis apparatus comprising a dialysate container, cover means for said dialysate container, a dialysis container mounted on said cover means, said dialysis container having an inlet means and an outlet means, spectrometer means mounted on said cover means, a first fluid circuit means connecting said dialysis container and said dialysate container through said spectrometer means, said first fluid circuit including purification means in said dialysate container, a dialysis membrane for permitting passage of substances with molecular weights of up to between 10,000-15,000 removably mounted in said dialysis container and having a selectively chemically active therapeutic substance insolubilized on at least the surface facing the liquid to be dialyzed, pump means mounted on said cover means for pumping dialysate from said dialysate container to said dialysis container, a second fluid circuit means connecting said pump means with said dialysate container and said dialysis container, and at least one dosimeter means on said dialysate container for metering fluid into said dialysate container.
Claim 3
Dependent Claim
13 words
The dialysis apparatus of claim 1 including heating means in said dialysate container.
Claim 4
Dependent Claim
15 words
The dialysis apparatus of claim 1 including signal means in combination with said spectrometer means.
Claim 5
Dependent Claim
28 words
The dialysis apparatus of claim 1 wherein said membrane is in the form of a helically wound flat hose and said membrane is wound with a distance means.
Claim 6
Dependent Claim
22 words
The dialysis apparatus of claim 1 including vibrator means mounted on said dialysate container for intensifying the liquid flow about said membrane.
Claim 7
Dependent Claim
14 words
The dialysis apparatus of claim 1 wherein said purification means is an adsorption means.
Claim 8
Dependent Claim
16 words
The dialysis apparatus of claim 1 including distribution means for distributing the liquid about said membrane.
Claim 9
Dependent Claim
10 words
The dialysis apparatus of claim 1 including further purification means.
Claim 10
Dependent Claim
26 words
The dialysis apparatus of claim 1 wherein said chemically active therapeutic substance is selected from the group consisting of enzymers, antibiotics, antigens, antibodies and synthetic adsorbents.
Claim 11
Dependent Claim
177 words
A dialysis apparatus comprising a dialysate container, cover means for said dialysate container, a dialysis container mounted on said cover means, said dialysis container having an inlet means and an outlet means, spectrometer means mounted on said cover means, a first fluid circuit means connecting said dialysis container and said dialysate container through said spectrometer means, said first fluid circuit including purification means in said dialysate container, a dialysis membrane for permitting passage of substances with molecular weights up to 10,000-15,000 removably mounted in said dialysis container and having a selectively chemically active therapeutic substance selected from the group consisting of L-aspariginase, urease and an antibiotic insolubilized on at least the surface facing the liquid to be dialyzed for purifying liquid passing through said apparatus, pump means mounted on said cover means for pumping dialysate from said dialysate container to said dialysis container, a second fluid circuit means connecting said pump means with said dialysate container and said dialysis container, and at least one dosimeter means on said dialysate container for metering fluid into said dialysate container.
Claim 12
Dependent Claim
177 words
A dialysis apparatus comprising a dialysate container, cover means for said dialysate container, a dialysis container mounted on said cover means, said dialysis container having an inlet means and an outlet means, spectrometer means mounted on said cover means, a first fluid circuit means connecting said dialysis container and said dialysate container through said spectrometer means, said first fluid circuit including purification means in said dialysate container, a dialysis membrane for permitting passage of substances with molecular weights up to 10,000-15,000 removably mounted in said dialysis container and having a selectively chemically active therapeutic substance selected from the group consisting of L-aspariginase, urease and an antibiotic insolubilized on at least the surface facing the liquid to be dialyzed for purifying liquid passing through said apparatus, pump means mounted on said cover means for pumping dialysate from said dialysate container to said dialysis container, a second fluid circuit means connecting said pump means with said dialysate container and said dialysis container, and at least one dosimeter means on said dialysate container for metering fluid into said dialysate container.
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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) | 1983-03-11 | 1983-09-10 | 1984-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-11 | 1987-09-10 | 1988-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-11 | 1991-09-10 | 1992-03-11 | $7700.00 | Window Closed / Lapsed |