A mechanical device that assists the blood circulation of the heart

Abstract

The invention discloses a cardiac blood circulation auxiliary mechanism device, which comprises a cardiac apex sleevelet fixedly connected to a heart, and a blood pump body, wherein the cardiac apex sleevelet comprises a suture ring and a flexible skirt edge which is sleeved at the periphery of the suture ring; the blood pump body comprises an inlet pipe which is inserted into the heart; the inlet pipe is arranged on a rear cover of the blood pump body; the suture ring comprises a convex edge which is convexly arranged in the radial direction; a peripheral ring slot is formed between the convex edge and the flexible skirt edge; and a rotation sheet is arranged on the rear cover of the blood pump body and can be stretched into the peripheral ring slot, so that the cardiac apex sleevelet and the blood pump body are relatively axially fixed. In the invention, the rotation sheet is used for fixing the cardiac apex sleevelet and a blood pump, so that the cardiac apex sleevelet can be more conveniently and reliably connected with the blood pump; simultaneously, the axial dimension of the inlet pipe of the blood pump is reduced, so that the integral dimension of a left ventricle auxiliary blood pump is reduced, the implantation of the left ventricle auxiliary blood pump into a pleural cavity is facilitated, extrusion damages to the heart and a diaphragm are reduced at the same time, and the success rate of a surgery is greatly improved.

Description

Technical field [0001] The invention relates to a new type of mechanical device for assisting cardiac blood circulation, in particular to a connection structure between a mechanical device for assisting cardiac blood circulation and the heart, belonging to the technical field of medical devices. Background technique [0002] The left ventricular auxiliary blood pump has its inlet end connected to the apex of the heart, and its outlet connected to the arteries. The connection between the heart and arteries is located in the chest cavity. There is a diaphragm between the chest cavity and the abdominal cavity. The diaphragm is also called the respiratory muscle. The diaphragm decreases and the chest cavity expands to help inhale. When it relaxes, the diaphragm rises and returns to its original position, and the chest cavity decreases in volume to help exhale. Another function of the diaphragm is to separate the chest cavity from the abdominal cavity, and the diaphragm itself is im...

AI Technical Summary

Problems solved by technology

In summary, implanting a blood pump into the abdominal cavity places high demands on doctors and postoperative care, and is not conducive to the recovery of recipients.

Images