초록 ▼

A pump assembly for ambulatory peritoneal dialysis transfer procedures includes a portable power supply geared to drive a high-volume peristaltic pump. A cassette of the pump comprises an encasement; tubing including an inner portion positioned within the encasement, a patient-side portion for conne

A pump assembly for ambulatory peritoneal dialysis transfer procedures includes a portable power supply geared to drive a high-volume peristaltic pump. A cassette of the pump comprises an encasement; tubing including an inner portion positioned within the encasement, a patient-side portion for connection to an indwelling peritoneal dialysis catheter and an opposing portion connectable to a system for containment and communication of a peritoneal dialysis solution which may be one single-compartment bag assembly; a safety valve for selectively occluding and permitting the communication of the solution through the inner portion; and a filter preferably interposed along the patient-side portion which filters air and particles from peritoneal dialysate that is flowing toward a patient and which allows peritoneal dialysate to flow substantially freely and unfiltered away from the patient.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method of performing a peritoneal dialysis procedure on a patient which permits that patient to remain ambulatory during infusion and evacuation of dialysate solution, comprising the steps of:associating a detachable, disposable peritoneal dialysis transfer set with a

[ What is claimed is:] [1.]1. A method of performing a peritoneal dialysis procedure on a patient which permits that patient to remain ambulatory during infusion and evacuation of dialysate solution, comprising the steps of:associating a detachable, disposable peritoneal dialysis transfer set with a portable pumping device, said transfer set including:a length of medical tubing, constituting a bidirectional flow path for dialysate solution between an indwelling patient catheter tube and a dialysate containment system, said length of medical tubing having first and second ends;a first coupling, carried at said first end of said length of medical tubing for connection to a said catheter tube;structure in fluid flow communication with said length of medical tubing, constituting means for directing fresh dialysate solution traveling through said tubing towards said first end through a first travel path and directing spent dialysate solution traveling through said tubing towards said second end through a second travel path;a biofilter in circuit with said first travel path; anda second coupling, carried at said second end of said length of medical tubing for connection to a dialysate containment system; andsaid portable pumping device being constructed and arranged so that it is capable of raising the hydrostatic head of dialysate solution within said first travel path sufficiently to pass through said biofilter at rates at least as high as those obtainable through said first travel path in the absence of said biofilter by gravity flow from said assembly for containment of dialysate solution;said transfer set, pumping device and dialysate containment system all being shaped and dimensioned so that they are suitable for attachment to a patient for ambulatory transport by said patient during infusion and exhaustion of dialysate solution;operating said portable pumping device to infuse peritoneal dialysate solution from the dialysate containment system to the patient;waiting for a period of time sufficient to allow dialysis within the patient;operating said portable pumping device to evacuate the dialysate solution from the peritoneal cavity of the ambulatory patient to the dialysate containment system; anddisassociating the transfer set from the pumping device to enable disposal of said transfer set and said dialysate containment system.