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Intelligent ECMO treatment device based on rolling type blood pump and control method of system

A control method and rolling technology, applied in blood pumps, blood pumps, dialysis systems, etc., can solve the problems of non-universal disposable consumables, limited expansion of clinical applications, and non-popularity of doctor training, achieving high completeness and applicable Wide-ranging, frequently-used effects

Pending Publication Date: 2022-05-13
TIANJIN WELCOME MEDICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most domestic ECMO treatments use centrifugal blood pumps, but the centrifugal pumps and their supporting equipment used in China are all imported products (Medtronic, Microvix), and the equipment is expensive. Disposable consumables are not universal and expensive. Popularity, limiting the expansion of clinical application
Difficult to configure in emergency or ICU rooms of major domestic hospitals

Method used

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  • Intelligent ECMO treatment device based on rolling type blood pump and control method of system
  • Intelligent ECMO treatment device based on rolling type blood pump and control method of system
  • Intelligent ECMO treatment device based on rolling type blood pump and control method of system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] An intelligent ECMO treatment device based on a rolling blood pump, including a venous cannula 1, a rolling blood pump 2, a membrane lung 3, and an arterial cannula 4. The venous cannula 1 and the arterial cannula 4 are respectively connected to the patient's heart When the patient's heart stops beating, the rolling blood pump 2 provides arterial blood to human organs to maintain the patient's life;

[0038]Wherein: the venous cannula 1 is connected to the inlet of the rolling blood pump 2 through the first connecting tube 5, the first connecting tube 5 is provided with a venous negative pressure measuring joint 12, and the venous negative pressure The pressure measuring joint 12 is provided with a venous pressure sensor 6 (the venous pressure sensor 6 is shared with an external monitor at the same time, such as a monitor in an operating room). This device takes out venous blood from the patient's heart through the venous catheter 1 for extracorporeal circulation Venous...

Embodiment 2

[0055] The intelligent ECMO treatment device described in Example 1 controls the flow rate of the rolling pump to achieve constant flow perfusion through intelligent and precise control of the perfusion pressure.

[0056] In this embodiment, a programmable controller is adopted as the central processing unit, and the programmable controller includes eight digital input ports, four analog input ports and eight digital output ports, as follows:

[0057] Among the eight digital input ports: three input ports are speed adjustment input ports, respectively connected to the motor of the rolling blood pump 2 to input the speed; three input ports are driver control signal input ports, respectively connected to the rolling blood pump 2 The driver is used to input the control signal; one input port is the pump head cover opening stop protection input port of the rolling blood pump 2, which is connected to the rolling blood pump 2 to input the pump head cover opening signal; the other inp...

Embodiment 3

[0062] Since the running time of the perfusion pipeline in the pump head of the rolling blood pump 2 is limited, it cannot be rolled in the rolling blood pump 2 for a long time. The intelligent ECMO treatment device in Example 1 is generally suitable for short-term treatment. Complete within 12 hours. In order to prolong the treatment time, this embodiment provides an intelligent ECMO treatment system based on a rolling blood pump, including the intelligent ECMO treatment device in Example 1 and another rolling blood pump. Two rolling blood pumps are connected in parallel. Compared with the ECMO rescue device of Embodiment 1, the intelligent ECMO rescue system of this embodiment has a service time that lasts twice.

[0063]Specifically, the two rolling blood pumps 2 are respectively a first rolling blood pump 2-1 and a second rolling blood pump 2-2, and the inlet of the first rolling blood pump 2-1 passes through The first branch pipe 21 communicates with the first connecting...

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Abstract

The invention provides an intelligent ECMO treatment device based on a rolling type blood pump and a control method of a system.The intelligent ECMO treatment device comprises a vein cannula, the rolling type blood pump, a membrane lung and an arterial cannula, the vein cannula is connected to an inlet of the rolling type blood pump through a first connecting pipe, and the rolling type blood pump is connected to an outlet of the artery cannula through a second connecting pipe; a venous pressure sensor is arranged on the first connecting pipe; an outlet of the rolling type blood pump is connected to an inlet of the membrane lung through an arteriovenous bridge tube, an artery overpressure sensor is arranged on the arteriovenous bridge tube, the membrane lung is further connected with an air and oxygen mixer and a temperature changing device, an outlet of the membrane lung is connected to the arterial cannula through a second connecting tube, and the arterial cannula is connected with the air and oxygen mixer through a second connecting tube. The venous pressure sensor and the artery overpressure sensor are respectively connected with the rolling type blood pump through the central processing unit. According to the invention, the perfusion pressure can be intelligently and accurately controlled, and finally constant-flow perfusion is achieved.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to an intelligent ECMO treatment device and system control method based on a rolling blood pump. Background technique [0002] ECMO is the English abbreviation for extracorporeal membrane oxygenation (ECMO), and ECMO is an extracorporeal circulation technology out of the cardiac operating room. Its principle is to draw the venous blood in the body out of the body, and inject it into the patient's arterial or venous system after being oxygenated by artificial cardiopulmonary bypass with special materials, so as to play a part of cardiopulmonary replacement and maintain the oxygenated blood supply of human organs and tissues. At present, most domestic ECMO treatments use centrifugal blood pumps, but the centrifugal pumps and their supporting equipment used in China are all imported products (Medtronic, Microvix), and the equipment is expensive. Disposable consumables are not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/16A61M60/113A61M60/279
CPCA61M1/1603A61M1/1645A61M1/1698A61M60/113A61M60/279
Inventor 胡伟纲胡伟闻汪胜武婷冯庆祥
Owner TIANJIN WELCOME MEDICAL EQUIP
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