Valve conveying system for implanting valve from apex cordis and using method thereof

Abstract

The invention relates to the field of medical instruments and provides a valve conveying system for implanting a valve from apex cordis. The valve conveying system comprises a controlling unit and a conveying unit which are connected, wherein the valve is loaded on the conveying unit which is used for conveying, releasing and recovering the valve, and the controlling unit is used for controlling the conveying, the releasing and the recovering of the valve. The valve conveying system for implanting the valve from the apex cordis can implant a self-expandable asymmetrical valve from the apex cordis into the sickness position through an interventional method under the condition of minimal incision, so that the shortcoming that the existing conveying system cannot implant the asymmetrical valve from the apex cordis is overcome. In the aspect of controllability, the valve conveying system for implanting the valve from the apex cordis is superior to the existing system for implanting the valve from the arteria femoralis, and the self-expandable asymmetrical valve is superior to a saccule expanding valve, wherein, the position of the saccule expanding valve cannot be adjusted after the saccule expanding valve is released.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a valve delivery system for valve replacement. Background technique [0002] Rheumatic heart disease, some congenital heart diseases, and valvular calcification in the elderly are the main causes of valve damage in patients, and the damage is irreversible. Therefore, final valve replacement is the most effective and only way to cure valvular disease. Valve replacement is significant. [0003] For a long time, valve replacement can only be performed by surgery, which requires the establishment of extracorporeal circulation, thoracotomy and pericardiotomy to sew the valve to the lesion position. The operation is very risky and causes huge physical and psychological trauma to the patient. In addition, a large proportion Most patients, especially those over 70 years old, are surgical contraindications and cannot undergo surgery. This proportion accounts for 30% of patients. In 2002, ...

AI Technical Summary

Problems solved by technology

However, because the valve is balloon-expandable, it cannot be recovered once it is released. If there is an accident in the operation, it will cause great loss to the patient.

[0005] The other is corevalve's self-expanding valve, which can only be implanted retrogradely and cannot be recovered

[0006] Due to its characteristics, self-expanding valves are often longer than balloon-expanding valves. Considering the anatomical structure, in order to minimize the impact of the valve on the human body, asymmetric valves are often not cylindrical, that is, asymmetric, such as corevalve valves. Therefore, the asymmetric valve has directionality, and the position of the hook needs to be placed at a specific end to adjust the release of the asymmetric valve, so the corevalve system can only be released from the femoral artery puncture

[0007] In the prior art, generally puncture from the femoral artery, such as Image 6 As shown, along the dotted line, according to the direction of the arrow, the distance to the target position is about 1-1.3 meters. Because the pipeline is too long, the sheath has room to swing, and the control of the asymmetrical valve is very difficult, often causing Dangerous or inaccurate phenomenon

From the apex of the heart, the distance is only 20cm-30cm, such a short channel, it is relatively easy for doctors to operate

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