DE29921085U1 - Medical pumping device - Google Patents

Medical pumping device

Info

Publication number
DE29921085U1
DE29921085U1 DE29921085U DE29921085U DE29921085U1 DE 29921085 U1 DE29921085 U1 DE 29921085U1 DE 29921085 U DE29921085 U DE 29921085U DE 29921085 U DE29921085 U DE 29921085U DE 29921085 U1 DE29921085 U1 DE 29921085U1
Authority
DE
Germany
Prior art keywords
pump
hose
fixed
sections
pinch valves
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE29921085U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
B Braun Melsungen AG
Original Assignee
B Braun Melsungen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by B Braun Melsungen AG filed Critical B Braun Melsungen AG
Priority to DE29921085U priority Critical patent/DE29921085U1/en
Publication of DE29921085U1 publication Critical patent/DE29921085U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/20—Type thereof
    • A61M60/247—Positive displacement blood pumps
    • A61M60/253—Positive displacement blood pumps including a displacement member directly acting on the blood
    • A61M60/268—Positive displacement blood pumps including a displacement member directly acting on the blood the displacement member being flexible, e.g. membranes, diaphragms or bladders
    • A61M60/279—Peristaltic pumps, e.g. roller pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/10—Location thereof with respect to the patient's body
    • A61M60/104—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body
    • A61M60/109—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body incorporated within extracorporeal blood circuits or systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/40—Details relating to driving
    • A61M60/424—Details relating to driving for positive displacement blood pumps
    • A61M60/438—Details relating to driving for positive displacement blood pumps the force acting on the blood contacting member being mechanical
    • A61M60/441—Details relating to driving for positive displacement blood pumps the force acting on the blood contacting member being mechanical generated by an electromotor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80—Constructional details other than related to driving
    • A61M60/835—Constructional details other than related to driving of positive displacement blood pumps
    • A61M60/837—Aspects of flexible displacement members, e.g. shapes or materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80—Constructional details other than related to driving
    • A61M60/845—Constructional details other than related to driving of extracorporeal blood pumps
    • A61M60/849—Disposable parts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80—Constructional details other than related to driving
    • A61M60/845—Constructional details other than related to driving of extracorporeal blood pumps
    • A61M60/851—Valves
    • A61M60/853—Valves the valve being formed by a flexible tube element which is clamped for restricting the flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80—Constructional details other than related to driving
    • A61M60/855—Constructional details other than related to driving of implantable pumps or pumping devices
    • A61M60/89—Valves
    • A61M60/892—Active valves, i.e. actuated by an external force

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (9)

1. Medizinische Pumpvorrichtung, insbesondere Blutpumpe, mit einem feststehenden Pumpenteil (10) und einem hierzu linear bewegbaren Pumpenteil (11) und mit einem an beiden Pumpenteilen (10, 11) fixierbaren Pumpenschlauch (18), dadurch gekennzeichnet, dass zwei Abschnitte (18a, 18b) des Pumpenschlauchs (18) an dem feststehenden Pumpenteil (10) fixiert sind, und dass an dem bewegbaren Pumpenteil (11) eine zwischen den Abschnitten (18a, 18b) gebildete U-förmige Schleife des Pumpenschlauchs fixiert ist.1. Medical pump device, in particular blood pump, with a fixed pump part ( 10 ) and a pump part ( 11 ) which can be moved linearly with it and with a pump hose ( 18 ) which can be fixed on both pump parts ( 10 , 11 ), characterized in that two sections ( 18 a , 18 b) of the pump hose ( 18 ) are fixed to the fixed pump part ( 10 ), and that a U-shaped loop of the pump hose formed between the sections ( 18 a, 18 b) is fixed to the movable pump part ( 11 ). 2. Pumpvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das feststehende Pumpenteil (10) zwei Quetschventile (V1, V2) enthält, die gesteuert auf je einen der Abschnitte (18a, 18b) des Pumpenschlauchs (18) einwirken.2. Pump device according to claim 1, characterized in that the fixed pump part ( 10 ) contains two pinch valves (V1, V2), which act in a controlled manner on each of the sections ( 18 a, 18 b) of the pump hose ( 18 ). 3. Pumpvorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Quetschventile (V1, V2) schwenkbare Hebel (35) aufweisen, die von einer Nockenvorrichtung (37, 38) betätigt sind, wobei die Nockenvorrichtung von einem Motor (14) angetrieben ist, der über einen Kurbeltrieb (25) auch das bewegbare Pumpenteil (11) antreibt.3. Pump device according to claim 2, characterized in that the pinch valves (V1, V2) have pivotable levers ( 35 ) which are actuated by a cam device ( 37 , 38 ), the cam device being driven by a motor ( 14 ) which also drives the movable pump part ( 11 ) via a crank mechanism ( 25 ). 4. Pumpvorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Quetschventile (V1, V2) schwenkbare Hebel (35) aufweisen, die in Quetschrichtung des Pumpenschlauchs (18) durch eine Feder (39) vorgespannt sind, und dass eine Nockenvorrichtung (37, 38) entgegen der Federkraft die Hebel (35) in die Freigaberichtung drückt. 4. Pump device according to claim 2 or 3, characterized in that the pinch valves (V1, V2) have pivotable levers ( 35 ) which are biased in the pinching direction of the pump hose ( 18 ) by a spring ( 39 ), and in that a cam device ( 37 , 38 ) presses the lever ( 35 ) in the release direction against the spring force. 5. Pumpvorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Hebel (35) Griffteile (41) aufweisen, die entgegen der Federkraft manuell gegeneinandergezogen werden können.5. Pump device according to claim 4, characterized in that the levers ( 35 ) have handle parts ( 41 ) which can be manually pulled against each other against the spring force. 6. Pumpvorrichtung nach einem der Ansprüche 1-5, dadurch gekennzeichnet, dass der Pumpenschlauch (18) einen im wesentlichen faltenfreien mittleren Biegebereich (18c) und daran angrenzend zwei Abschnitte (18a, 18b) aufweist, die einen Faltenbalg (29) enthalten.6. Pump device according to one of claims 1-5, characterized in that the pump hose ( 18 ) has a substantially crease-free central bending area ( 18 c) and adjoining two sections ( 18 a, 18 b) which have a bellows ( 29 ) contain. 7. Pumpvorrichtung nach einem der Ansprüche 1-6, dadurch gekennzeichnet, dass der Pumpenschlauch (18) Fixierdeformierungen (30, 32) aufweist, die mit entsprechenden Haltevorrichtungen (31, 33) der Pumpenteile (10,11) zusammengreifen.7. Pump device according to one of claims 1-6, characterized in that the pump hose ( 18 ) has fixing deformations ( 30 , 32 ) which engage with corresponding holding devices ( 31 , 33 ) of the pump parts ( 10 , 11 ). 8. Pumpvorrichtung nach einem der Ansprüche 1-7, dadurch gekennzeichnet, dass das erste und/oder das zweite Pumpenteil mit einem Deckel (40) bedeckt ist, nach dessen Abnahme der Pumpenschlauch (18) unter Freigabe der Quetschventile (V1, V2) herausnehmbar ist.8. Pump device according to one of claims 1-7, characterized in that the first and / or the second pump part is covered with a cover ( 40 ), after removal of which the pump hose ( 18 ) can be removed with the release of the pinch valves (V1, V2) is. 9. Pumpvorrichtung nach einem der Ansprüche 1-8, dadurch gekennzeichnet, dass der Motor (14) ein Schrittmotor ist, der wegabhängig derart gesteuert ist, dass sich eine quasi­ kontinuierliche Förderung ergibt.9. Pump device according to one of claims 1-8, characterized in that the motor ( 14 ) is a stepper motor which is controlled depending on the path such that there is a quasi-continuous delivery.
DE29921085U 1999-12-01 1999-12-01 Medical pumping device Expired - Lifetime DE29921085U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29921085U DE29921085U1 (en) 1999-12-01 1999-12-01 Medical pumping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29921085U DE29921085U1 (en) 1999-12-01 1999-12-01 Medical pumping device

Publications (1)

Publication Number Publication Date
DE29921085U1 true DE29921085U1 (en) 2001-04-12

Family

ID=8082346

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29921085U Expired - Lifetime DE29921085U1 (en) 1999-12-01 1999-12-01 Medical pumping device

Country Status (1)

Country Link
DE (1) DE29921085U1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0761245A1 (en) * 1995-09-11 1997-03-12 Deco Delta GmbH Extra-corporeal blood pump
DE29818577U1 (en) * 1998-10-17 2000-03-02 Braun Melsungen Ag Medical fluid transfer system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0761245A1 (en) * 1995-09-11 1997-03-12 Deco Delta GmbH Extra-corporeal blood pump
DE19533595C2 (en) * 1995-09-11 1999-10-14 Deco Delta Gmbh Extracorporeal blood pump
DE29818577U1 (en) * 1998-10-17 2000-03-02 Braun Melsungen Ag Medical fluid transfer system

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Legal Events

Date Code Title Description
R163 Identified publications notified
R207 Utility model specification

Effective date: 20010517

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20021216

R151 Utility model maintained after payment of second maintenance fee after six years

Effective date: 20060706

R158 Lapse of ip right after 8 years

Effective date: 20080701