Ventricular wall injection assist device

Abstract

The invention discloses a ventricular wall injection assisting device, which comprises a flexible belt-shaped main body made of biocompatible materials, a plurality of positioning holes are distributed on the belt-shaped main body, and the belt-shaped main body is made of biocompatible materials. A plurality of vacuum suction cups are arranged on the back of the main body, and the positions of the vacuum suction cups and the positioning holes do not coincide. In the ventricular wall injection assisting device of the present invention, a detachable connection is formed between the vacuum suction cup and the outer surface of the heart to fix the belt-shaped main body on the outer surface of the heart. Injecting non-contracting substances such as hydrogels separately can effectively improve the positioning accuracy of the injection point, shorten the operation time, and avoid residual pigment pollution in the patient's body.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an auxiliary device for ventricular wall injection. Background technique [0002] Heart failure, referred to as heart failure, refers to the failure of the systolic and / or diastolic function of the heart to fully discharge the venous blood back to the heart, resulting in blood stasis in the venous system and insufficient blood perfusion in the arterial system, resulting in cardiac circulatory disorder syndrome. Existing treatment methods, such as traditional drug therapy, assistive devices and heart transplantation, all face many difficulties. For example, many patients have recurrent symptoms after traditional drug therapy, cardiac resynchronization therapy is not suitable for all patients, and some patients have poor response. The source of donors for heart transplantation is very limited. [0003] Implantable hydrogel is a new type of heart failure treatment technology. Specifi...

AI Technical Summary

Problems solved by technology

During the operation, in order to minimize the harm to the patient, it is necessary to strictly control the size of the thoracotomy incision, and perform operations such as marking and injection in as small an incision as possible. Since the exposed chest space is very narrow, the doctor draws and During the process of marking the injection point, the field of vision is limited, and it is often only operated with one hand, which is difficult; and during the whole operation, the heart is always beating, and the doctor uses a marking pen to draw marking lines and positioning points on the surface of the heart It is more difficult, and it will greatly prolong the operation time and increase the risk of the patient; and because the heart is exposed to the air for a long time, the trauma to the patient will be relatively large

At the same time, the pigment used in the logo will also diffuse or even fall off during the beating process of the heart, resulting in the blurring or even disappearance of the injection point of the mark, requiring repeated repainting, which further increases the difficulty of operation and affects the accuracy of the mark

In addition, the marking pigment remains in the patient's body after falling off, and cannot be completely excreted with the patient's metabolism, causing pollution in the body, which will increase the biological risk

[0005] In summary, the existing ventricular wall injection methods have problems such as long operation time, inconvenient marking of injection points, inaccurate positioning of injection points, and contamination of marking pigments.

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