US4085046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Renal dialysis concentrate delivery system
Assignee: Individual
•
Filing: 1976-08-16
•
Granted: 1978-04-18
•
Expires: 1996-08-16
Abstract
Abstract A renal dialysis concentrate delivery system comprising at least two renal dialysis concentrate reservoirs, first supply valve means and supply conduit means. First supply conduit means connecting a first concentrate reservoir to the first supply valve means. Second supply conduit means connecting a second concentrate reservoir to the first supply valve means. Concentrate pump means operatively associated with the supply conduit means. Conduit means for transporting the concentrate toward a renal dialysis machine. Return conduit means for returning concentrate to the concentrate reservoirs. The first supply valve means may be a three-way valve. The return conduit means preferably includes a second three-way valve. Valve control means coordinate the positioning of the three-way valves so as to provide a first position wherein both valves are in communication with a first concentrate reservoir, and a second position wherein both valves are in communication with a second concentrate reservoir. Means for determining when a concentrate reservoir is empty or approaching being empty may be provided. Such means may take the form of a pressure monitor in the supply conduit means and responsive signal generating means. Alternatively, such means may take the form of an air detector and responsive signal means.
Inventors
- 👤 Thomas J. Saporito, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:48
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/14; A61M1/16; A61M1/1654; A61M1/1656; A61M1/1668; B; B01; B01D; B01D61/00; B01D61/24; B01D61/30; A61M1/1657; A61M2205/00; A61M2205/84
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
159 words
A renal dialysis concentrate delivery system comprising: at least two renal dialysis concentrate reservoirs, first supply valve means, supply conduit means having first, second and third supply conduit means, said first supply conduit means connecting a first said concentrate reservoir to said first supply valve means, said second supply conduit means connecting a second said concentrate reservoir to said first supply valve means, said third supply conduit means for transporting said concentrate from said first supply valve means to at least one renal dialysis machine, said first supply valve means being a multiple position valve having a first position permitting flow of concentrate from said first concentrate reservoir through said first supply valve means, and a second position permitting flow from said second concentrate reservoir through said first supply valve means, a concentrate pump in said third supply conduit means, and return conduit means disposed downstream from said pump and connecting said third conduit means with said concentrate reservoirs.
Claim 2
Dependent Claim
159 words
A renal dialysis concentrate delivery system comprising: at least two renal dialysis concentrate reservoirs, first supply valve means, supply conduit means having first, second and third supply conduit means, said first supply conduit means connecting a first said concentrate reservoir to said first supply valve means, said second supply conduit means connecting a second said concentrate reservoir to said first supply valve means, said third supply conduit means for transporting said concentrate from said first supply valve means to at least one renal dialysis machine, said first supply valve means being a multiple position valve having a first position permitting flow of concentrate from said first concentrate reservoir through said first supply valve means, and a second position permitting flow from said second concentrate reservoir through said first supply valve means, a concentrate pump in said third supply conduit means, and return conduit means disposed downstream from said pump and connecting said third conduit means with said concentrate reservoirs.
Claim 3
Dependent Claim
21 words
The renal dialysis concentrate delivery system of claim 1 including pressure monitor means in communication with said third supply conduit means.
Claim 4
Dependent Claim
32 words
The renal dialysis concentrate delivery system of claim 2 including means responsive to said pressure monitoring system indication of concentrate pressure being below a predetermined level to initiate a signal so indicated.
Claim 5
Dependent Claim
31 words
The renal dialysis concentrate delivery system of claim 3 including said means responsive to said pressure monitoring system including electrical means for initiating an alarm responsive to receipt of said signal.
Claim 6
Dependent Claim
24 words
The renal dialysis concentrate delivery system of claim 4 including said electrical means including relay means for completing the circuit for initiating said alarm.
Claim 7
Dependent Claim
17 words
The renal dialysis concentrate delivery system of claim 5 including said alarm system having audible alarm means.
Claim 8
Dependent Claim
17 words
The renal dialysis concentrate delivery system of claim 5 including said alarm means including visual alarm means.
Claim 9
Dependent Claim
25 words
The renal dialysis concentrate delivery system of claim 5 including means for terminating said alarm responsive to cessation of said signal indicating concentrate pressure deficiencies.
Claim 10
Dependent Claim
19 words
The renal dialysis concentrate delivery system of claim 1, including said first supply valve means being a solenoid valve.
Claim 11
Dependent Claim
99 words
The renal dialysis concentrate delivery system of claim 1 including said return conduit means having first return conduit means, second return conduit means and third return conduit means, first return valve means operatively associated with said return conduit means for selectively permitting concentrate flow to said first and second reservoirs, said first return conduit means connecting said third supply conduit means with said first return valve means, said second return conduit means connecting said return valve means with a first said concentrate reservoir, and said third return conduit means connecting said return valve means with said second concentrate reservoir.
Claim 12
Dependent Claim
27 words
The renal dialysis concentrate delivery system of claim 10 including first container means for providing additional concentrate receiving capacity in communication with said third supply conduit means.
Claim 13
Dependent Claim
26 words
The renal dialysis concentrate delivery system of claim 11 including second container means for providing additional concentrate receiving capacity disposed within said first return conduit means.
Claim 14
Dependent Claim
32 words
The renal dialysis concentrate delivery system of claim 10 including pressure relief valve means for permitting flow of said concentrate to said return valve means when concentrate pressure exceeds a predetermined level.
Claim 15
Dependent Claim
58 words
The renal dialysis concentrate delivery system of claim 10 including said return valve means being a three-way valve having a first position permitting flow through said valve from said first return conduit means to said first concentrate reservoir, and a second position permitting flow through said valve from said first return conduit means to said second concentrate reservoir.
Claim 16
Dependent Claim
18 words
The renal dialysis concentrate delivery system of claim 14 including said return valve means being a solenoid valve.
Claim 17
Dependent Claim
55 words
The renal dialysis concentrate delivery system of claim 10 including said first supply valve means and said return valve means each being three-way valves, valve control means for placing said three-way valves in a first position in communication with one said concentrate reservoir, and a second position in communication with the other said concentrate reservoir.
Claim 18
Dependent Claim
23 words
The renal dialysis concentrate delivery system of claim 16 including said three-way valves being solenoid valves, and said valve control means being electrical.
Claim 19
Dependent Claim
36 words
The renal dialysis concentrate delivery system of claim 17 including said valve control means adapted to impose one of two voltages across said valves with each voltage placing said valves in one of two said positions.
Claim 20
Dependent Claim
20 words
The renal dialysis concentrate delivery system of claim 18 including said valve control means including a manually operable electrical switch.
Claim 21
Dependent Claim
23 words
The renal dialysis concentrate delivery system of claim 19 including said valve control means including stepdown transformer means, rectifier means and relay means.
Claim 22
Dependent Claim
33 words
The renal dialysis concentrate delivery system of claim 20 including lamp means responsive to the positions of said valves to provide a visual indication as to which said concentrate reservoir is in use.
Claim 23
Dependent Claim
27 words
The renal dialysis concentrate delivery system of claim 1 including first container means for providing additional concentrate receiving capacity in communication with said third supply conduit means.
Claim 24
Dependent Claim
26 words
The renal dialysis concentrate delivery system of claim 22 including second container means for providing additional concentrate receiving capacity in communication with said return conduit means.
Claim 25
Dependent Claim
39 words
The renal dialysis concentrate delivery system of claim 22 including relief valve means for permitting flow of concentrate through said return conduit means to a said concentrate reservoir when concentrate pressure in the supply system exceeds a predetermined level.
Claim 26
Dependent Claim
51 words
The renal dialysis concentrate delivery system of claim 1 including said third supply conduit means including a supply header and feeder tubes connected at one end to said supply header and having free ends adapted to be connected to a renal dialysis machine, and check valve means in said feeder tubes.
Claim 27
Dependent Claim
16 words
The renal dialysis concentrate delivery system of claim 1 including said pump being an occlusion pump.
Claim 28
Dependent Claim
47 words
The renal dialysis concentrate delivery system of claim 1 including an air detector disposed in communication with said supply conduit means, and signal means responsive to the presence of greater than a predetermined quantity of air or gas in said air detector means to emit a signal.
Claim 29
Dependent Claim
16 words
The renal dialysis concentrate delivery system of claim 27 including said air detector including photocell means.
Claim 30
Dependent Claim
38 words
The renal dialysis concentrate delivery system of claim 27 including pump shutoff means responsive to a signal from signal means to shut off the concentrate pump when the quantity of air or gas detected exceeds said predetermined quantity
Claim 31
Dependent Claim
25 words
The renal dialysis concentrate delivery system of claim 1 including alarm means for indicating pump shutoff for reasons other than shutting off the entire system.
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) | 1981-04-17 | 1981-10-17 | 1982-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-17 | 1985-10-17 | 1986-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-17 | 1989-10-17 | 1990-04-18 | $7700.00 | Window Closed / Lapsed |