RU2015117238A - Устройство для экстракорпоральной обработки крови - Google Patents

Устройство для экстракорпоральной обработки крови Download PDF

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Publication number
RU2015117238A
RU2015117238A RU2015117238A RU2015117238A RU2015117238A RU 2015117238 A RU2015117238 A RU 2015117238A RU 2015117238 A RU2015117238 A RU 2015117238A RU 2015117238 A RU2015117238 A RU 2015117238A RU 2015117238 A RU2015117238 A RU 2015117238A
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Russia
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piston
actuator according
pressing means
electric motor
actuator
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RU2015117238A
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English (en)
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RU2648223C2 (ru
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Пьер ТЬЕБО
Оливье МАНЬЕНА
Рето КУЭНИ
Фредерик НЕФТЕЛЬ
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Дебиотех С.А.
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/34—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
    • A61M1/342—Adding solutions to the blood, e.g. substitution solutions
    • A61M1/3424—Substitution fluid path
    • A61M1/3431—Substitution fluid path upstream of the filter
    • A61M1/3434—Substitution fluid path upstream of the filter with pre-dilution and post-dilution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
    • F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
    • F16K7/16—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being mechanically actuated, e.g. by screw-spindle or cam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
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    • A61M1/15—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with a cassette forming partially or totally the flow circuit for the treating fluid, e.g. the dialysate fluid circuit or the treating gas circuit
    • A61M1/152—Details related to the interface between cassette and machine
    • A61M1/1524—Details related to the interface between cassette and machine the interface providing means for actuating on functional elements of the cassette, e.g. plungers
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    • A61M1/15—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with a cassette forming partially or totally the flow circuit for the treating fluid, e.g. the dialysate fluid circuit or the treating gas circuit
    • A61M1/155—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with a cassette forming partially or totally the flow circuit for the treating fluid, e.g. the dialysate fluid circuit or the treating gas circuit with treatment-fluid pumping means or components thereof
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    • A61M1/15—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with a cassette forming partially or totally the flow circuit for the treating fluid, e.g. the dialysate fluid circuit or the treating gas circuit
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    • A61M1/26—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes and internal elements which are moving
    • A61M1/267—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes and internal elements which are moving used for pumping
    • A—HUMAN NECESSITIES
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    • A—HUMAN NECESSITIES
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    • F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member

Abstract

1. Линейный актуатор (200), содержащий поворотный электродвигатель (201), поршень (207) и установленное между электродвигателем (201) и поршнем (207) преобразующее средство, предназначенное для преобразования вращательного движения двигателя (201) в линейное перемещение поршня (207) и содержащеепо меньшей мере один периферийный скошенный участок (214), находящийся внутри поршня (207),по меньшей мере одно нажимное средство (209), выполненное с возможностью взаимодействия с указанным периферийным скошенным участком (214), ипо меньшей мере одно направляющее средство (203, 216), позволяющее поршню (207) совершать поступательное перемещение,при этом скошенный участок (214) имеет по меньшей мере один пороговый выступ, находящийся в самой верхней его части, и проход (219), обеспечивающий поршню (207) возможность освобождения от усилий, прикладываемых к нему скошенным участком (214) и нажимным средством (209).2. Актуатор по п. 1, в котором преобразующее средство обеспечивает поршню возможность находиться в положении равновесия без необходимости включения питания электродвигателя, когда нажимное средство опирается на указанный выступ.3. Актуатор по п. 1, в котором указанный выступ выполнен как, по существу, плоская платформа, расположенная вдоль оси, перпендикулярной главной оси ротора.4. Актуатор по п. 1, дополнительно содержащий поджимающее средство (205), прикладывающее к поршню (207) усилие, направленное вдоль оси ротора.5. Актуатор по п. 1, в котором скошенный участок (214) выполнен с возможностью обеспечивать поршню (207) без необходимости включения питания электродвигателя, по меньшей мере два следующих стационарных положения равновесия:первое положение, в котором нажимное средство (209) находится в проходе (219), ивторое положение, в

Claims (15)

1. Линейный актуатор (200), содержащий поворотный электродвигатель (201), поршень (207) и установленное между электродвигателем (201) и поршнем (207) преобразующее средство, предназначенное для преобразования вращательного движения двигателя (201) в линейное перемещение поршня (207) и содержащее
по меньшей мере один периферийный скошенный участок (214), находящийся внутри поршня (207),
по меньшей мере одно нажимное средство (209), выполненное с возможностью взаимодействия с указанным периферийным скошенным участком (214), и
по меньшей мере одно направляющее средство (203, 216), позволяющее поршню (207) совершать поступательное перемещение,
при этом скошенный участок (214) имеет по меньшей мере один пороговый выступ, находящийся в самой верхней его части, и проход (219), обеспечивающий поршню (207) возможность освобождения от усилий, прикладываемых к нему скошенным участком (214) и нажимным средством (209).
2. Актуатор по п. 1, в котором преобразующее средство обеспечивает поршню возможность находиться в положении равновесия без необходимости включения питания электродвигателя, когда нажимное средство опирается на указанный выступ.
3. Актуатор по п. 1, в котором указанный выступ выполнен как, по существу, плоская платформа, расположенная вдоль оси, перпендикулярной главной оси ротора.
4. Актуатор по п. 1, дополнительно содержащий поджимающее средство (205), прикладывающее к поршню (207) усилие, направленное вдоль оси ротора.
5. Актуатор по п. 1, в котором скошенный участок (214) выполнен с возможностью обеспечивать поршню (207) без необходимости включения питания электродвигателя, по меньшей мере два следующих стационарных положения равновесия:
первое положение, в котором нажимное средство (209) находится в проходе (219), и
второе положение, в котором нажимное средство (209) находится на указанном выступе (215).
6. Актуатор по п. 5, в котором в первом положении равновесия поджимающее средство (205) отжимает поршень (207) от двигателя (201) на расстояние, большее, чем во втором положении.
7. Актуатор по п. 5, в котором во втором положении равновесия преобразующее средство прижимает поршень (207) к двигателю ближе, чем в первом положении.
8. Актуатор по п. 1, в котором указанный проход (219) отходит от верхней части скошенного участка и/или расположен рядом с пороговым выступом.
9. Актуатор по п. 1, в котором проход (219) заходит за нижнюю часть скошенного участка (214).
10. Актуатор по п. 1, в котором по меньшей мере одно нажимное средство (209) является круглым стержнем, закрепленным перпендикулярно ротору (208).
11. Актуатор по п. 1, дополнительно содержащий датчик (204) положения поршня.
12. Актуатор по любому из предыдущих пунктов, в котором проход расположен на оси, совпадающей с осью линейного перемещения поршня.
13. Исполнительная система, содержащая по меньшей мере один линейный актуатор (200), выполненный в соответствии с любым из предыдущих пунктов, контроллер и по меньшей мере один источник питания и предназначенная для перемещения по меньшей мере одного поршня из указанного второго положения в первое при низком энергопотреблении.
14. Система по п. 13, в которой источник питания является внешним источником питания и/или аккумуляторным средством, пригодным для использования системой, когда внешний источник питания не функционирует или недостаточен.
15. Клапанная система, приводимая в действие актуатором, выполненным в соответствии с любым из пп. 1-12.
RU2015117238A 2012-10-29 2013-10-29 Устройство для экстракорпоральной обработки крови RU2648223C2 (ru)

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