초록 ▼

Portable hemodialysis apparatus which can be used for dialysis and/or ultrafiltration, or hemoperfusion. Separate circuits are provided for blood and for the ultrafiltrate and the dialysis solution. The blood circuit includes a pump in which the flexible tube is periodically throttled, causing blood

Portable hemodialysis apparatus which can be used for dialysis and/or ultrafiltration, or hemoperfusion. Separate circuits are provided for blood and for the ultrafiltrate and the dialysis solution. The blood circuit includes a pump in which the flexible tube is periodically throttled, causing blood to be drawn from the patient and advanced under pressure through the blood circuit. A similar pump is included in the circuit for the dialysis solution. The output side of the latter pump is selectively connectable either with the inlet of the dialyzer or with an ultrafiltrate collection station, while the input side of the latter pump is selectively connectable with the outlet of the dialyzer either through the dialysis liquid supply tank or directly via a shunt line. A lighter auxiliary tank is also provided for temporary freedom of movement with respect to the normal supply tank.

대표청구항 ▼

In a portable dialysis apparatus, of the type comprising a first circuit for blood and a second circuit for ultrafiltration and dialysis liquid, the exchange between the blood and the dialysis liquid taking place through a semipermeable membrane, the improvement comprising (a) a pump means in each o

In a portable dialysis apparatus, of the type comprising a first circuit for blood and a second circuit for ultrafiltration and dialysis liquid, the exchange between the blood and the dialysis liquid taking place through a semipermeable membrane, the improvement comprising (a) a pump means in each of said first and second circuits, each said pump means having a head and being of the type in which a flexible tube is intermittently throttled by at least one element of said pump head, said pump head being maintained in throttling engagement with said tube for at least a length thereof; (b) means for selectively connecting the output side of the pump means for said dialysis liquid either with the inlet of said dialyzer or with an ultrafiltrate collection station; (c) means for selectively connecting the input side of pump means for said dialysis liquid with the outlet of the dialyzer either through a supply tank of dialysis liquid or directly via a shunt line; (d) whereby ultrafiltration and dialysis are performable as first and second steps in sequence; (e) a pressure meter being arranged in said shunt line upstream of the pump means for said dialysis liquid; and (f) said supply tank for said dialysis liquid being provided with temperature control and adjustment means, and a filter for the absorption of toxic substances from the dialysis liquid being mounted between said outlet of said dialyzer and said supply tank.