ROTARY INFUSION PUMPS

An infusion pump (110) includes a housing (112); a rotor (230) inserted into the housing, the rotor including a first ring (38a) of surfaces (236a) that form channels with the housing, and a second ring (38b) of surfaces (236b) that form channels with the housing, the second channel forming surfaces...

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Bibliographische Detailangaben
Hauptverfasser:	HONG ZHU, JORGE A. DELCASTILLO, RONGSHENG LIN, THOMAS E. DUDAR
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	BLASTING DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY ENGINE PLANTS IN GENERAL HEATING HUMAN NECESSITIES HYGIENE LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING MEDICAL OR VETERINARY SCIENCE POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	An infusion pump (110) includes a housing (112); a rotor (230) inserted into the housing, the rotor including a first ring (38a) of surfaces (236a) that form channels with the housing, and a second ring (38b) of surfaces (236b) that form channels with the housing, the second channel forming surfaces radially offset from the first channel forming surfaces; and a motor (40) operably engaged to rotate the rotor to cause the first and second channel forming surfaces to pump a flow of fluid, the radial offsetting of the second channel forming surfaces from the first channel forming surfaces dampening a pulsatility of the flow of fluid. Una bomba de infusión (110) incluye un alojamiento (112); un rotor (230) insertado en el alojamiento, el rotor incluyendo un primer anillo (38a) de superficies (236a) que forman canales con el alojamiento, y un segundo anillo (38b) de superficies (236b) que forman canales con el alojamiento, las segundas superficies formadoras de canal radialmente desviadas de las primeras superficies formadoras de canal; y un motor (40) operablemente acoplado para hacer girar el rotor para que las primeras y segundas superficies formadoras de canal bombeen un flujo de fluido, la desviación radial de las segundas superficies formadoras de anillo desde las primeras superficies formadoras de canal amortiguando la pulsatilidad del flujo de fluido.