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Control device and heart pump or heart pump system incorporating same

A control device and heart pump technology, applied in medical and electrical engineering fields, can solve problems such as limiting cardiac output

Active Publication Date: 2022-02-25
BERLIN HEART GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This increase in left ventricular preload also limits cardiac output due to increased right ventricular afterload

Method used

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  • Control device and heart pump or heart pump system incorporating same
  • Control device and heart pump or heart pump system incorporating same
  • Control device and heart pump or heart pump system incorporating same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] figure 1 A patient's body 1 and a heart 2 to be assisted as well as a rotary pump 3 arranged on the heart are shown schematically. The pump 3 is connected to the patient's heart 2 by means of an inlet cannula 4 and draws blood from the right ventricle in order to deliver it to the pump outlet 5 and through the outlet cannula 6 into the aorta 7 .

[0033] A pressure sensor 8 is arranged inside the heart as an element of the control device and is connected by means of a line 9 to a processing device 10 of the control device. The processing device 10 electronically controls the pump 3 taking into account the results of the pressure measurement. To do this, the device 10a first correlates the value of an operating parameter of the pump (eg, the delivery rate of the pump or the pump speed) with the end-diastolic filling pressure. For this purpose, the device 10a is connected to a storage device 10b.

[0034] One issue here is the variation in blood flow rate requirements ...

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PUM

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Abstract

The invention relates to a control device and a heart pump or a heart pump system comprising the control device, the control device comprising means for establishing an end-diastolic filling pressure (19) in the ventricle and for setting the delivery rate of the pump, especially the pump speed or electric pump capacity) correlates to the established end-diastolic filling pressure. Robust operating options similar to physiologically controlled heart pumps are created by accounting for end-diastolic filling pressure.

Description

technical field [0001] The invention is in the field of electrical engineering and can be used particularly advantageously in the field of medical technology. In particular, the invention relates to a control device for a heart pump and to the detection of measured variables intended to form the basis of the control. Background technique [0002] In the following, the application of a control system for a rotary pump will be considered as a specific example of the invention, since this type of pump can be controlled particularly easily in terms of delivery capacity. However, this is not intended to exclude applications with other pump types whose delivery capacity can be controlled. [0003] Rotary blood pumps are usually operated at a constant speed in order to continuously reduce the strain on the patient's heart. However, especially when the patient is physically active or physically overtaxed, this often results in a reduced blood supply in the patient and / or an overlo...

Claims

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Application Information

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IPC IPC(8): A61M60/148A61M60/50
CPCA61M60/554A61M60/531A61M60/165A61M2205/3334A61M2205/3344A61M2205/3358A61M2205/3365A61M2205/52A61M2210/125A61M60/148
Inventor M·格兰艾格尔C·维泽纳D·卡奇
Owner BERLIN HEART GMBH
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