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Device for establishing the venous inflow to a blood reservoir of an extracorporeal blood circulation system

A reservoir and vein technology, applied in the direction of blood circulation treatment, drug equipment, suction equipment, etc., can solve problems such as non-optimization

Active Publication Date: 2015-12-23
SORIN GROUP DEUTLAND
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  • Claims
  • Application Information

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Problems solved by technology

All in all, the adjustment of the venous inflow to the reservoir of the extracorporeal circulation is thus carried out in a stressful working environment, so that this hitherto technical solution must be considered suboptimal in supporting the user in adjusting the venous inflow to the reservoir of

Method used

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  • Device for establishing the venous inflow to a blood reservoir of an extracorporeal blood circulation system
  • Device for establishing the venous inflow to a blood reservoir of an extracorporeal blood circulation system
  • Device for establishing the venous inflow to a blood reservoir of an extracorporeal blood circulation system

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Embodiment Construction

[0024] as in figure 1 The extracorporeal blood circuit, shown in , with the aid of the first embodiment of the device according to the invention, in principle comprises, in addition to the reservoir 1, a venous inflow line 2 from the patient P to the reservoir 1 and a venous inflow line 2 from the reservoir 1 to the patient. Arterial inflow line of P3. For conveying blood from the reservoir 1 to the patient P, a pump 9 , usually a roller pump or a centrifugal pump, is provided at or in the arterial inflow line 3 . as in figure 1 As can be seen in , the reservoir 1 is arranged at a level below the patient, so that a venous inflow to the reservoir is possible only due to gravity, the size of which also depends on the cross-section of the tubing used in the venous inflow.

[0025] In order to throttle the venous inflow to the reservoir 1, the first embodiment of the invention described here comprises a throttling device 4, with which the venous inflow line 2 (for example by cla...

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Abstract

PROBLEM TO BE SOLVED: To provide a device simplifying management of an extracorporeal circulation system for establishing venous inflow to a blood reservoir.SOLUTION: A device includes: a venous inflow line 2 from a patient P to a reservoir 1; an arterial inflow line 3 from the reservoir to the patient; a restriction unit 4 that gradually clamps the venous inflow line; a vacuum unit 5 that applies a vacuum state to the reservoir; and control means 6 that supplies the restriction unit with a first actuating signal for establishing a degree of blockage in the venous inflow line so as to determine a range of restricting a volume of venous inflow, supplies the vacuum unit with a second actuating signal for establishing a degree of vacuum in the reservoir so as to determine a range of increasing the volume of venous inflow, and includes a single operation element 7 for establishing the volume of venous inflow by an operator. A vacuum sensor 12 detecting the vacuum state is provided in the reservoir, and is connected to the control means so as to provide a first measurement signal.

Description

[0001] This application is a divisional application of a PCT patent application submitted on April 26, 2010 that has entered the Chinese national phase (Chinese national application number is 201080024961.6, international application number is PCT / EP2010 / 055522, and the invention name is "Device for Establishing the Venous Inflow to a Blood Reservoiro fan Extracorporeal Blood Circulation System") . technical field [0002] The invention relates to a device for determining the venous inflow to a blood reservoir in an extracorporeal blood circuit. Background technique [0003] The extracorporeal blood circuit usually comprises, among other components, a venous inflow line from the patient to a blood reservoir (eg a venous cardiotomy reservoir for blood and / or priming fluid) and a Arterial inflow line from reservoir to patient. In order to convey the blood from the patient into the reservoir, the reservoir is situated at a level below the patient so that it can be drained by m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/36
CPCA61M1/3667A61M1/3621A61M1/3627A61M1/3663A61M2205/3389
Inventor E.克诺特J.施雷耶
Owner SORIN GROUP DEUTLAND
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