Method for the automatic semicontinuous peritoneal dialysis
First Claim
1. A method for automatic semicontinuous peritoneal dialysis of a patient in need of such dialysis, wherein dialysing solution is introduced into the peritoneal cavity of the patient and then discharged therefrom, comprising forming a closed circuit between said peritoneal cavity and a supply of dialysing solution, said supply of dialysing solution being a predetermined amount of solution;
- transferring the dialysing solution from said supply, in an amount predetermined consistently with the patient undergoing the treatment, to the peritoneal cavity of the patient in unchanged form from that in said supply;
transferring at least a portion of said dialysing solution back from said cavity to said supply in unchanged form from that in which it is withdrawn from said cavity; and
sequentially repeating said transfer of the dialysing solution to and from the said peritoneal cavity for a predetermined number of cycles, while maintaining the dialysing solution at a desired temperature.
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Abstract
A method for the automatic semicontinuous peritoneal dialysis, wherein the dialysing solution is pumped from the supply bag to the peritoneal cavity of the patient in a predetermined amount sensed by control means, by which the pumping means are actuated to change over the pumping direction, the same dialysing solution being pumped to and from the peritoneal cavity for a predetermined number of times.
Patient safety is assured by providing shunting means for the pumping means, whereby the latter are short-circuited between the delivery and the suction side if any abnormal condition occurs.
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Citations
8 Claims
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1. A method for automatic semicontinuous peritoneal dialysis of a patient in need of such dialysis, wherein dialysing solution is introduced into the peritoneal cavity of the patient and then discharged therefrom, comprising forming a closed circuit between said peritoneal cavity and a supply of dialysing solution, said supply of dialysing solution being a predetermined amount of solution;
- transferring the dialysing solution from said supply, in an amount predetermined consistently with the patient undergoing the treatment, to the peritoneal cavity of the patient in unchanged form from that in said supply;
transferring at least a portion of said dialysing solution back from said cavity to said supply in unchanged form from that in which it is withdrawn from said cavity; and
sequentially repeating said transfer of the dialysing solution to and from the said peritoneal cavity for a predetermined number of cycles, while maintaining the dialysing solution at a desired temperature. - View Dependent Claims (2, 3)
- transferring the dialysing solution from said supply, in an amount predetermined consistently with the patient undergoing the treatment, to the peritoneal cavity of the patient in unchanged form from that in said supply;
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4. In a method for conducting automatic semicontinuous peritoneal dialysis, wherein a dialysing solution is introduced into the peritoneal cavity of a patient in need of such dialysis and then discharged from the peritoneal cavity, the improvement comprising the steps of:
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(a) providing a supply of dialysing solution, said supply being in an amount predetermined in accordance with the patient undergoing peritoneal dialysis; (b) providing a pumping means for pumping said dialysing solution to and from said supply of dialysing solution and said peritoneal cavity, said supply, said peritoneal cavity and said pumping means being connected together in a closed circuit; (c) introducing at least a portion of said dialysing solution from said supply into said peritoneal cavity in unchanged form from that in said supply through said closed circuit by operation of said pumping means; (d) removing at least a portion of said dialysing solution in said peritoneal cavity from said cavity and transferring all of said removed dialysing solution in unchanged form from that in which it is removed from said cavity to said supply of dialysing solution through said closed circuit by operation of said pumping means; (e) sequentially repeating steps (c) and (d) for a predetermined number of cycles to repeatedly transfer at least portions of the same dialysing solution initially present in said supply through said closed circuit to and from said peritoneal cavity and said supply of dialysing solution, whereby the risk of peritoneal infection in the patient due to exterior exposure of dialysis solution is essentially eliminated. - View Dependent Claims (5, 6, 7, 8)
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Specification