US3703959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable recirculating dialysate module
Assignee: CCI Aerospace Corp
•
Filing: 1969-11-17
•
Granted: 1972-11-28
•
Expires: 1989-11-17
Abstract
Abstract A disposable module containing all equipment, instruments and material required to circulate and treat the dialysate solution during the treatment of the patient. The module is of inexpensive construction so that it can be thrown away after a single treatment. When the artificial kidney membrane is separate from the module, two lines connect the module to the artificial kidney membrane and when the artificial kidney membrane is contained in the module, two lines connect the module directly to the patient. The module contains separate compartments for the chemicals which treat the dialysate solution and has separate compartments which serve as a reservoir and as a container for a reconstitution fluid. All passages are formed integral with the module and all instruments are of simple, cheap construction which can be disposed of with the module.
Inventors
- 👤 Julius R Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:56
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/14; A61M1/16; A61M1/1694
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
138 words
A disposable dialysate module for recirculating dialysate solution comprising: a single closed container for said dialysate solution defined by integrally formed walls, said container comprising a plurality of partitions each integrally connected along at least one edge to said container for forming a plurality of separate compartments located on opposite sides of said partitions, passage means for said dialysate solution formed integrally with said container for circulating said solution through at least some of said compartments, said passage means introducing said solution at the top of each of said solution circulating compartments and withdrawing the fluid at the bottom so that dialysate solution flows downwardly through all said fluid circulating compartments, and pump means integral with said passage means for circulating said solution, said pump means having a power input connectable thereto from the exterior of said container.
Claim 2
Dependent Claim
138 words
A disposable dialysate module for recirculating dialysate solution comprising: a single closed container for said dialysate solution defined by integrally formed walls, said container comprising a plurality of partitions each integrally connected along at least one edge to said container for forming a plurality of separate compartments located on opposite sides of said partitions, passage means for said dialysate solution formed integrally with said container for circulating said solution through at least some of said compartments, said passage means introducing said solution at the top of each of said solution circulating compartments and withdrawing the fluid at the bottom so that dialysate solution flows downwardly through all said fluid circulating compartments, and pump means integral with said passage means for circulating said solution, said pump means having a power input connectable thereto from the exterior of said container.
Claim 3
Dependent Claim
28 words
A disposable module as defined in claim 1 wherein said container has only two openings to the exterior thereof during the patient treatment for receiving two external passages.
Claim 4
Dependent Claim
53 words
A dialysate module as defined in claim 2 wherein one of said compartments contains an artificial kidney membrane means, said passage means circulating the dialysate solution on one side of said membrane means; said two external passages connecting to the patient in order to circulate blood past the other side of the membrane.
Claim 5
Dependent Claim
58 words
A disposable module as defined in claim 1 wherein said passage means comprises a passage along an external wall of said container, said wall being transparent to observe the interior of said passage, said passage containing a movable indicator therein, the position of which is a measure of the flow rate of the dialysate solution through said system.
Claim 6
Dependent Claim
59 words
A disposable module as defined in claim 1 wherein one of said compartments is larger than the other compartments and comprises a reservoir for the dialysate solution, said reservoir being larger in capacity than required to hold the initial chaRge of dialysate so that water removed from the patient during dialysis treatment can be added to the dialysate solution.
Claim 7
Dependent Claim
48 words
A disposable module as defined in claim 5 wherein a wall of said reservoir is transparent to permit observation of the dialysate solution within said reservoir compartment; and calibrations on said wall to determine the volume of said solution in said reservoir at any time during the treatment.
Claim 8
Dependent Claim
42 words
A disposable module as defined in claim 1 wherein one of said compartments contains a reconstitution fluid, said passage means comprising a passage extending through said reconstitution compartment, and means for introducing said reconstitution solution into said passage at a predetermined rate.
Claim 9
Dependent Claim
66 words
A disposable module as defined in claim 1 wherein one of said compartments is a reservoir for the dialysate solution and another of said compartments contains a solution for reconstituting the dialysate fluid, the exterior wall portions of said compartments containing plugged openings for introducing dialysate fluid and reconstitution solution, respectively, into said compartments prior to the use of the module in treatment of the patient.
Claim 10
Dependent Claim
135 words
A module for recirculating dialysate solution comprising: a fluid tight container for confining a charge of said dialysate solution, a plurality of partitions in said container for dividing said container into a plurality of compartments located on opposite sides of said partitions, passage means for connecting a plurality of said compartments in series for circulating dialysate fluid successively through said plurality of said compartments, said passage means having an inlet and an outlet for each of said fluid circulating compartments, said inlet being at the top and said outlet being at the bottom of each circulating compartment so that the dialysate solution flows downwardly through each compartment, said passage means comprising a passage section extending completely through one of said compartments and having an opening in said section for receiving fluid from said one compartment.
Claim 11
Dependent Claim
135 words
A module for recirculating dialysate solution comprising: a fluid tight container for confining a charge of said dialysate solution, a plurality of partitions in said container for dividing said container into a plurality of compartments located on opposite sides of said partitions, passage means for connecting a plurality of said compartments in series for circulating dialysate fluid successively through said plurality of said compartments, said passage means having an inlet and an outlet for each of said fluid circulating compartments, said inlet being at the top and said outlet being at the bottom of each circulating compartment so that the dialysate solution flows downwardly through each compartment, said passage means comprising a passage section extending completely through one of said compartments and having an opening in said section for receiving fluid from said one compartment.
Claim 12
Dependent Claim
60 words
A system as defined in claim 9 wherein: said fluid circulating compartments comprise a reservoir compartment for receiving an initial charge of dialysate solution, said reservoir being of greater volume than said charge so that the additional fluid added to the solution during dialysis can be measured, and two separate dialysate treatment compartments for removing impurities from said dialysate solution.
References Cited (Backward Citations)
US2720879A
Cited
US2969150A
Cited
US3416664A
Cited
US3457944A
Cited
US3515275A
Cited
US3506126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-28 | 1976-05-29 | 1976-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-28 | 1980-05-29 | 1980-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-28 | 1984-05-29 | 1984-11-28 | $7700.00 | Window Closed / Lapsed |