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Ventricle assisting device implanted through interventional micro-injury operation

A ventricular assist device and minimally invasive intervention technology, applied in heart valve, medical science, prosthesis and other directions, can solve the problems of difficult operation, large cardiac trauma, limited adaptability, etc., to overcome design defects, strong mobility, Good dispersion effect

Pending Publication Date: 2018-06-08
NINGBO DIOCHANGE MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the object of the present invention is to provide a ventricular assist device that can be implanted through minimally invasive interventional surgery to solve the problems of difficult surgical operations such as spatial positioning and implantation in the process of remodeling the heart structure in the prior art. Cardiac trauma, limited adaptability and other problems, so as to effectively assist the heart contraction

Method used

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  • Ventricle assisting device implanted through interventional micro-injury operation
  • Ventricle assisting device implanted through interventional micro-injury operation
  • Ventricle assisting device implanted through interventional micro-injury operation

Examples

Experimental program
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Effect test

Embodiment 1

[0051] The ventricular assist device that can be implanted through minimally invasive intervention (hereinafter referred to as “the device”) provided by the present invention includes two magnetic components 1 that can attract each other, at least a part of the magnetic component 1 is located in the heart wall 20 . Two magnetic assemblies 1 that attract each other generate a mutual attractive force F. When the heart contracts, the force F exerts a pulling force or pressure on the heart tissue that is in direct contact with the magnetic assembly 1, including the heart wall 20, toward the inside of the heart. The distance between the cardiac tissue in direct contact with or surrounding the two magnetic components 1 can be reduced to drive the entire heart to contract, so the two magnetic components 1 can play a role in assisting the contraction of the heart, and finally increase the cardiac output per stroke. increase, thereby improving heart failure symptoms. Such as Figure 1...

Embodiment 2

[0068] Based on the first embodiment, the difference between the second embodiment and the first embodiment is that a restricting mechanism 1110 is provided inside the storage element 11 to restrict the magnetic element 10 in the storage element 11 and prevent the magnetic element 10 from leaking. In one embodiment, the restriction mechanism 1110 is a one-way valve with only one-way flow performance, such as Figure 6a with Figure 6b As shown, this one-way valve can make the magnetic element 10 easily enter the storage body 110 from the storage opening 111, but can prevent the magnetic element 10 from leaking from the storage opening 111 to the outside of the storage component 11, thus further improving the safety of the device. safety. In another embodiment, the restricting mechanism 1110 has a structure that can reduce the size of the inner cavity of the receiving mouth 111, such as a combination of tightening wire 1111 and tightening track 1112, such as Figure 6c As sho...

Embodiment 3

[0070] Based on the first embodiment, the first difference between the third embodiment and the first embodiment is that the storage element 11 includes two or more storage bodies 110, and one or more storage ports fixedly connected with the storage bodies 110 part 111, a storage connection part 1100 is further provided between the storage main body 110, Figure 7a with Figure 7c It is respectively shown that two spherical or cuboid storage bodies 110 are fixedly connected through the storage connection part 1100 . For the magnetic component 1 formed by injecting and filling the magnetic component 10 into the storage component 11 described in this embodiment, a neck can be formed at the storage connection part 1100. When the neck is located in the heart wall 20, the magnetic component can be used 1 The final form of its own makes the magnetic assembly 1 and the heart wall 20 relatively fixed, such as Figure 7b with 7d As shown, the long-term effectiveness of the fixation ...

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Abstract

The invention relates to a ventricle assisting device implanted through interventional micro-injury operation. The ventricle assisting device comprises a plurality of magnetic components, wherein themagnetic components are mutually attracted; at least a part of each magnetic component is positioned inside a heart wall; the magnetic components comprise magnetic elements and containing elements which can be compressed into a conveying system; the magnetic elements can be injected into the containing elements; and the containing elements are detachably connected with the conveying system. The magnetism of the ventricle assisting device can be adjusted and finely tuned, an optimal magnetic field direction can be adjusted automatically and actively, and the ventricle assisting device has an overall and effective function of assisting systole, in addition is convenient in micro-injury implanting through interventional micro-injury operation, and is simple and practical in overall design, good in gluing adaptability to heart tissue, good in long-term fixation effect, wide in application range and safe and effective.

Description

technical field [0001] The invention relates to the technical field of heart failure treatment, in particular to a ventricular assist device that can be implanted through minimally invasive interventional surgery. Background technique [0002] The main function of the heart is systolic ejection and diastolic pumping. Due to various structural or functional diseases of the heart, ventricular ejection dysfunction, decreased cardiac output and clinical manifestations such as circulatory congestion, that is, systolic heart failure occurs. Patients with systolic heart failure are usually treated with left ventricular assist devices such as auxiliary pumps, nonfunctional zone isolation / resection, and ventricular restriction devices. [0003] For the ventricular restraint device, in 2005, MiCardia proposed a method of using magnetic elements to reshape the heart shape in patent WO2006 / 019520, that is, multiple magnetic elements were implanted in the heart tissue or connected to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/00A61F2/24
CPCA61F2/0095A61F2/2478A61F2002/249A61F2210/009
Inventor 吕世文李彪董娟
Owner NINGBO DIOCHANGE MEDICAL TECH CO LTD
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