Ventricular auxiliary blood pumping instrument and system

A ventricular assist and blood pumping technology, applied in the field of medical devices, can solve problems such as long operation time and large trauma

Pending Publication Date: 2022-06-21
SUZHOU HEARTHILL MEDICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a ventricular assist blood pumping device and system to solve the problems that the current ventricular assist device requires a thoracotomy, long operation time and large trauma

Method used

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  • Ventricular auxiliary blood pumping instrument and system
  • Ventricular auxiliary blood pumping instrument and system
  • Ventricular auxiliary blood pumping instrument and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] like Figure 1 to Figure 13 As shown, this embodiment provides a ventricular assisted blood pumping device, including an in-vivo assembly 100 , and the in-vivo assembly 100 includes a support cover 110 and an impeller mechanism 200 . The support cover 110 includes a hollow cover body 111 and a cover film 112 , the cover film 112 is covered on the hollow cover body 111 , the impeller mechanism 200 is arranged in the hollow cover body 111 , and the impeller mechanism 200 includes a rotating shaft 220 and a rotating shaft 220 . Blade 210. The in-body assembly 100 has a folded state and an unfolded state. In the folded state, the support cover 110 is folded inward on the impeller mechanism 200, and the blades 210 are folded on the rotating shaft 220; in the unfolded state, the support cover 110 is unfolded outward to form a blood flow channel , the blade 210 is unfolded in the support cover 110 relative to the rotating shaft 220 , and is used to rotate and pump blood, so a...

Embodiment 2

[0106] like Figure 14 to Figure 16 As shown, this embodiment provides a ventricular auxiliary blood pumping device. The only difference between the ventricular auxiliary blood pumping device and the first embodiment is that the support cover 110 includes a main frame body 1111, and the main frame body 1111 is not connected to the connecting frame 1112. The middle part of the main frame body 1111 is covered with a film 112 , and both ends of the film 112 are open to form an inlet 102 and an outlet 101 for blood at the two ends of the main frame body 1111 , respectively.

[0107] The ventricular auxiliary blood pumping device in this embodiment can be implanted through the femoral artery or through the apex of the heart. The principle of the ventricular auxiliary blood pumping device in this embodiment is mainly to pump the blood at the bottom of the ventricle to the outflow tract position close to the aorta 2 when the heart contracts , thereby increasing the amount of excess b...

Embodiment 3

[0111] like Figure 17 ~ Figure 18 As shown, this embodiment provides a ventricular auxiliary blood pumping device, which is the same as the second embodiment, the difference is that the support cover 110 is inserted through the connection between the aorta 2 and the left ventricle 1, Alternatively, it can also be understood within the aorta 2 . That is, the support cover 110 passes through the aortic valve, one end of the main frame body 1111 exposed outside the membrane 112 is communicated with the left ventricle 1 to form the blood inlet 102, and the other end of the main frame body 1111 exposed outside the membrane 112 communicates with the main body 1111. The arteries 2 communicate and form an outlet 101 for blood.

[0112] In this embodiment, the ventricular auxiliary blood pumping device can be provided with two pressure measurement points. One pressure measurement point P4 is set at the end of the main frame body 1111 exposed outside the membrane 112 to communicate with...

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Abstract

The invention provides a ventricular auxiliary blood pumping instrument and system, and relates to the technical field of medical instruments.The ventricular auxiliary blood pumping instrument comprises an in-vivo assembly, and the in-vivo assembly comprises a supporting cover and an impeller mechanism; the in-vivo assembly has a folded state and an unfolded state, when the in-vivo assembly is arranged at the connecting position of the aorta and the left ventricle or in the left ventricle, the in-vivo assembly is set to be in the unfolded state, the covering film and the supporting cover form a blood flowing channel, the impeller mechanism rotates to promote the pressure of blood in the blood flowing channel to be increased, and then the in-vivo assembly can be used as a blood pump. Promoting blood in the left ventricle to flow to the aorta; meanwhile, the in-vivo assembly has a folded state, in the folded state, the impeller mechanism and the supporting cover are folded, the size is small, the in-vivo assembly can be implanted into the connecting position of the aorta and the left ventricle or in the left ventricle through a catheter, thoracotomy is not needed, the operation time is short, trauma is small, and patient recovery is fast.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a ventricular auxiliary blood pumping device and a system. Background technique [0002] The heart is an important organ that provides power for human blood circulation. The heart is divided into two parts, left and right, each of which contains a ventricle and an atrium. The left ventricle and the right ventricle are blocked by the interventricular septum, and the left atrium and the right atrium are blocked by the atrial septum. The direction of blood flow between the left atrium and left ventricle is regulated by the mitral valve. A healthy mitral valve ensures that oxygen-rich blood flows from the left atrium to the left ventricle, where it is pumped to the arteries throughout the body. The direction of blood flow between the right atrium and the right ventricle is regulated by the tricuspid valve, which indeed contains carbon dioxide-rich venous blood, which flows ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M60/17A61M60/126A61M60/216A61M60/515A61M60/806A61M60/804A61M60/808
CPCA61M2205/3331A61M2230/04A61M2210/125A61M2230/005A61M2210/005
Inventor 闫小珅
Owner SUZHOU HEARTHILL MEDICAL CO LTD
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