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Miniature conduit pump motor with flexible PCB winding

A technology of miniature catheters and pump motors, applied in the shape/style/structure of winding conductors, blood pumps, hypodermic injection devices, etc., can solve the problem that the winding shape is not easy to change, achieve high assembly density, improve output performance, and small size Effect

Pending Publication Date: 2022-03-18
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the disadvantages of cogging torque generated by the stator when the traditional motor runs at high speed, and the shape of the winding is not easy to change, this patent has invented a miniature catheter pump motor with a flexible PCB winding, which can realize the easy implantability of the catheter pump motor and reduce the Catheter pump motor loss, improve the output performance of the catheter pump motor at high speed, and facilitate the production of stator windings

Method used

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  • Miniature conduit pump motor with flexible PCB winding
  • Miniature conduit pump motor with flexible PCB winding
  • Miniature conduit pump motor with flexible PCB winding

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Embodiment Construction

[0043] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0044] The present invention is described below in conjunction with accompanying drawing:

[0045] Such as figure 2 , the permanent magnetic steel (8) can be processed by multi-pair pole integral molding. In order to reduce the difficulty of production and save costs, the permanent magnetic steel is processed by a pair of pole integral molding; the magnetization method adopts parallel radial Magnetization, the magnetization direction is N pole to S pole.

[004...

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Abstract

The invention designs a miniature conduit pump motor with a flexible PCB winding, the miniature conduit pump motor comprises a stator assembly and a rotor assembly, the stator assembly comprises the flexible PCB winding, a stator iron core, a stator outer sleeve, a stator inner sleeve and an electronic commutator, and two bearings support the rotor to rotate; the rotor assembly comprises permanent magnet steel, a transmission output shaft and a rotor outer sleeve. According to the scheme, the ultrathin flexible PCB winding is subjected to multi-layer winding, so that the cup-shaped PCB stator winding is formed. The structure is free of motor tooth grooves, eddy current loss caused by the tooth groove effect does not exist, and meanwhile, the stator iron-core-free structure also enables the loss of the stator iron core to be obviously reduced; a winding of a traditional micro motor needs to be manufactured through a special machine or a complex process, a conductor in the flexible PCB can be printed into different shapes, later performance optimization of the motor is facilitated, and therefore the flexible PCB winding is suitable for the micro conduit pump motor designed in the invention.

Description

technical field [0001] The patent of the present invention relates to a micro catheter pump motor with flexible PCB winding, which belongs to the technical field of micro motors. Background technique [0002] In recent years, the morbidity and mortality of heart disease in many countries have been increasing year by year. Heart transplantation in the terminal stage is an effective treatment plan, but there is a serious shortage of heart donors, and the increasingly serious contradiction between supply and demand has prompted the development of ventricular assist devices. Catheter pump is an artificial heart pump for the treatment of acute severe heart failure. It is used for short-term assistance and a small blood circulation assisting device to maintain the patient's physiological blood pumping. The Impella commercial catheter pump developed by Abiomed has been applied clinically and can be implanted in patients with heart failure for short-term assistance. Catheter pumps ...

Claims

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Application Information

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IPC IPC(8): H02K3/26H02K3/04H02K1/12A61M60/165
CPCH02K3/26H02K3/04H02K1/12A61M60/165
Inventor 王芳群钱锋高宇贺照明
Owner JIANGSU UNIV
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