A dialysis system includes a dialysis instrument including a blood pump actuator, a dialyzer, a heparin pump, and a disposable cassette including a blood pumping portion operable with the blood pump actuator of the dialysis instrument, the blood pumping portion including an inlet and an outlet, the
A dialysis system includes a dialysis instrument including a blood pump actuator, a dialyzer, a heparin pump, and a disposable cassette including a blood pumping portion operable with the blood pump actuator of the dialysis instrument, the blood pumping portion including an inlet and an outlet, the inlet of the blood pumping portion of the disposable cassette positioned and arranged to receive blood from an arterial line of an extracorporeal circuit, the outlet of the blood pumping portion of the disposable cassette positioned and arranged to deliver the blood to the dialyzer and to receive heparin from the heparin pump.
대표청구항▼
1. A dialysis system comprising: a dialysis instrument including a blood pump actuator;an extracorporeal circuit including a dialyzer;a heparin pump;a disposable cassette including a blood pumping portion operable with the blood pump actuator of the dialysis instrument to cause blood to be pumped th
1. A dialysis system comprising: a dialysis instrument including a blood pump actuator;an extracorporeal circuit including a dialyzer;a heparin pump;a disposable cassette including a blood pumping portion operable with the blood pump actuator of the dialysis instrument to cause blood to be pumped through the extracorporeal circuit, the blood pumping portion including an inlet and an outlet, the inlet of the blood pumping portion of the disposable cassette positioned and arranged to receive blood from an arterial line of the extracorporeal circuit, the outlet of the blood pumping portion of the disposable cassette positioned and arranged to deliver the blood to the dialyzer and to receive heparin from the heparin pump at a heparin introduction location to the disposable cassette; anda saline source configured to deliver saline to the extracorporeal circuit at a saline introduction location to the disposable cassette, and wherein the saline introduction location is adjacent to the heparin introduction location. 2. The dialysis system of claim 1, wherein the heparin pump is positioned and arranged to introduce the heparin into the outlet of the blood pumping portion just prior to a disposable cassette inlet to the dialyzer. 3. The dialysis system of claim 1, wherein the heparin pump includes a tube positioned to introduce the heparin into the outlet of the blood pumping portion of the disposable cassette. 4. The dialysis system of claim 3, wherein the dialysis instrument includes a pinch valve operable with the tube to control the heparin introduced into the outlet of the blood pumping portion. 5. The dialysis system of claim 3, which includes an air bubble detector, wherein heparin in the tube passes through the air bubble detector before reaching the disposable cassette. 6. The dialysis system of claim 1, wherein the heparin pump includes a syringe pointed downwardly so that air collects above the heparin within the syringe. 7. The dialysis system of claim 1, wherein the heparin pump accepts a syringe ranging in size from ten millimeters to sixty millimeters. 8. The dialysis system of claim 1, wherein the heparin pump includes a syringe located within a housing of the dialysis instrument. 9. The dialysis system of claim 8, wherein the syringe is a smaller syringe, and wherein the dialysis instrument is configured to accommodate heparin syringes, larger than said heparin pump syringe, located at least partly outside of the dialysis instrument housing. 10. A dialysis system comprising: a dialysis instrument including a blood pump actuator;an extracorporeal circuit including a dialyzer;a heparin source;a saline source; anda disposable cassette including a blood pumping portion operable with the blood pump actuator of the dialysis instrument to cause blood to be pumped through the extracorporeal circuit, the disposable cassette placing the blood pumping portion in fluid communication with the dialyzer and the extracorporeal circuit, so that blood can be pumped from the extracorporeal circuit, through the blood pumping portion, to the dialyzer,wherein the disposable cassette is configured to (i) introduce heparin from the heparin source into the blood at a first location of the disposable cassette between the blood pumping portion and the dialyzer, and (ii) introduce saline from the saline source into the extracorporeal circuit at a second location of the disposable cassette, and wherein the second location is adjacent to the first location for introduction of heparin. 11. The dialysis system of claim 10, wherein the disposable cassette is configured to introduce the heparin into the disposable cassette just prior to an inlet of the dialyzer. 12. The dialysis system of claim 10, wherein the disposable cassette is configured to introduce heparin into the disposable cassette at an outlet of the blood pumping portion. 13. The dialysis system of claim 10, wherein the disposable cassette accepts a tube extending from the heparin source. 14. The dialysis system of claim 13, which includes an air detector, wherein the tube is fitted into the air detector. 15. The dialysis system of claim 10, wherein the heparin source includes a syringe pump. 16. A dialysis system comprising: a dialysis instrument including a blood pump actuator;an extracorporeal circuit including a dialyzer;a disposable cassette including a blood pumping portion operable with the blood pump actuator of the dialysis instrument to cause blood to be pumped through the extracorporeal circuit, the disposable cassette placing the blood pumping portion in fluid communication with the dialyzer and the extracorporeal circuit, so that blood can be pumped from the extracorporeal circuit, through the blood pumping portion, to the dialyzer;a heparin source comprising a syringe in fluid communication with the disposable cassette via a tube; andan air detector operably connected to the tube configured such that air exits the syringe during priming of the extracorporeal circuit. 17. The dialysis system of claim 16, wherein the disposable cassette is configured to accept the tube just prior to an inlet to the dialyzer. 18. The dialysis system of claim 16, wherein the disposable cassette is configured to accept the tube at an outlet of the blood pumping portion. 19. The dialysis system of claim 16, wherein the heparin source includes a syringe pointed downwardly so that air collects above heparin within the syringe. 20. A dialysis system comprising: a dialysis instrument including a blood pump actuator and a syringe pump actuator;an extracorporeal circuit including a dialyzer;a disposable cassette including a blood pumping portion operable with the blood pump actuator of the dialysis instrument to cause blood to be pumped through the extracorporeal circuit, the disposable cassette placing the blood pumping portion in fluid communication with the dialyzer and the extracorporeal circuit, so that blood can be pumped from the extracorporeal circuit, through the blood pumping portion, to the dialyzer; anda heparin source in fluid communication with the disposable cassette, the heparin source including a syringe having a plunger pointed downwardly into the syringe pump actuator and a barrel pointed upwardly into a heparin discharge tube.
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