EP0112104A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Apparatus for peritoneal dialysis
Assignee: JMS Co Ltd
•
Filing: 1983-12-02
•
Granted: —
•
Expires: 2003-12-02
Abstract
Abstract An automatic apparatus for peritoneal dialysis includes a dialysate-feeding unit comprising a single container or two or more containers (11) connected in parallel, a dialysate storage unit (14) for temporarily storing dialysate removed from the dialysate-feeding unit by a pump (12), a heating unit (13) for heating the dialysate before it is injected into the patient, and a dialysate discharge unit (15,15A) for receiving the dialysate after it has passed through the patient, all of these units being connected by transfer tubing (16) to form a fluid circuit, and a control device (20) for controlling the fluid circuit.
Inventors
- 👤 Seiji Yamane
- 👤 Kazuyuki Oda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 19:16
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/14; A61M1/28; A61M1/16; A61M1/1621; A61M1/1643; A61M2205/00; A61M2205/33; A61M2205/3379; A61M2205/3393; A61M5/00; A61M5/44; A61M5/445
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
140 words
Apparatus for peritoneal dialysis comprising a dialysate-feeding unit comprising a dialysate container or containers of the same type, a dialysate storage unit for temporarily storing dialysate removed from the dialysate-feeding unit, means for transferring dialysate from the feeding unit to the storage unit, a heater for heating the dialysate before it is injected into a patient's body, and a dialysate discharge unit for receiving the dialysate after it has been passed through the patient's body, all of the units being connected into a controllable fluid circuit by transfer tubing, characterised in that the or each dialysate container is removably affixed, in parallel to any others, to the fluid circuit, such that the dialysate of the container or each of them can be simultaneously removed and admixed with the dialysate from any other containers at the inlet of the transfer tubing.
Claim 2
Dependent Claim
140 words
Apparatus for peritoneal dialysis comprising a dialysate-feeding unit comprising a dialysate container or containers of the same type, a dialysate storage unit for temporarily storing dialysate removed from the dialysate-feeding unit, means for transferring dialysate from the feeding unit to the storage unit, a heater for heating the dialysate before it is injected into a patient's body, and a dialysate discharge unit for receiving the dialysate after it has been passed through the patient's body, all of the units being connected into a controllable fluid circuit by transfer tubing, characterised in that the or each dialysate container is removably affixed, in parallel to any others, to the fluid circuit, such that the dialysate of the container or each of them can be simultaneously removed and admixed with the dialysate from any other containers at the inlet of the transfer tubing.
Claim 3
Dependent Claim
71 words
Apparatus as claimed in claim 1 characterised in that the fluid circuit is controlled by weighing means for the dialysate storage unit and the dialysate discharge unit, which are electrically connected to a calculator to calculate the quantities of dialysate injected and discharged into and from the patient from the two numerical values obtained from the weighing means, and to a display for displaying the injected and discharged quantities thus calculated.
Claim 4
Dependent Claim
52 words
Apparatus as claimed in claim 2 characterised in that the fluid circuit contains a transfer tubing switch consisting of a metering clamp, an injection clamp, and a discharge clamp, which co-operate to switch the flow of the dialysate from the storage unit, to or from the patient or to the discharge unit.
Claim 5
Dependent Claim
25 words
Apparatus as claimed in any preceding claim characterised in that the dialysate-feeding unit and/or the dialysate storage unit comprise bags suitable for holding dialysate. i
Claim 6
Dependent Claim
44 words
Apparatus as claimed in any preceding claim characterised in that the heating unit comprises a synthetic resin bag provided at an intermediate portion of the fluid circuit, and heaters that sandwich the bag between them and that can heat the dialysate by thermal conduction.
Claim 7
Dependent Claim
28 words
Apparatus as claimed in any preceding claim characterised in that the heating unit and the dialysate storage unit are directly connected by a single length of transfer tubing.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.