Automated peritoneal dialysis system using stepper motor

An embodiment of a peritoneal dialysis system includes an enclosure, a door hingedly attached to the enclosure, a stepper motor housed by the enclosure, a solid pump piston in operable communication with the stepper motor and including a solid pump shaft attached to or integrally formed with a solid...

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Bibliographische Detailangaben
Hauptverfasser: Hopping, Peter, Lauman, Brian, Ming-Da Eu, Bruce, Richardson, Ian, Alvaro, Jose, Childers, Robert, Din, Shahid, Kienman, Rick, Busby, Don, Lundtveit, Loren M, Shang, Sherwin, Bowman, Jr., Joseph H
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An embodiment of a peritoneal dialysis system includes an enclosure, a door hingedly attached to the enclosure, a stepper motor housed by the enclosure, a solid pump piston in operable communication with the stepper motor and including a solid pump shaft attached to or integrally formed with a solid pump head, and a disposable unit contacting the enclosure and the door. The disposable unit includes a moveable membrane operable with the solid pump head. The stepper motor is configured to move the solid pump head towards and away from the disposable unit. The system further includes a position detection apparatus operable with the stepper motor and located to provide an output indicative of a position of the solid pump head relative to a reference position.