Conveying device for conveying artificial cardiac valve replacement device

Abstract

The invention discloses a conveying device for conveying an artificial cardiac valve replacement device. The conveying device comprises a guide head, a tubular inner sheath, a bracket fixing head with through hole, a traction core tube and a tubular outer sheath, wherein the outer wall at one end of the bracket fixing head is provided with a positioning groove matched with the bracket of the artificial cardiac valve replacement device, and the other end of the bracket fixing head is connected with the inner sheath; one end of the traction core tube is connected with the guide head after passing through the through hole of the bracket fixing head, and the other end of the traction core tube gets out of the inner sheath; and the tubular outer sheath is sleeved outside the inner sheath and the bracket fixing head and can slide along the outer wall of the inner sheath. The conveying device of the invention is convenient to use, has good positioning effect, reduces the difficulty of surgery and also realizes recoverability.

Description

Technical field [0001] The present invention relates to the technical field of medical devices, in particular to a delivery device for implanting an artificial valve replacement device into the human body. Background technique [0002] When the patient's own heart valve mutates due to congenital or acquired diseases, and the valve cannot be opened and closed normally, it will affect healthy life and even life. Variations of heart valves can be divided into insufficiency and insufficiency, both of which can cause an increase in heart load. Whether the heart can still work normally under this load is the main basis for determining whether a human heart valve should be replaced. [0003] When the patient needs to replace the valve, the existing method is to replace the valve with surgery. The doctor opens the chest for the patient to stop the heart and connect it to the extracorporeal cardiopulmonary circulation system. Then the patient’s heart is opened to remove the diseased heart ...

AI Technical Summary

Problems solved by technology

[0008] However, the delivery device in the prior art only needs to rely on the guide head to contact the inner wall of the blood vessel and the guide wire when it is inserted into the blood vessel of the human body, and the turning is realized under the obstruction of the inner wall of the blood vessel, but this may damage the blood vessel or Abrasion or damage to the lining of the organ

Not only that, after the artificial valve replacement device is released, because the artificial valve replacement device will expand under the action of body temperature, once it is found to be in place or the position is deviated, it cannot be dealt with, and it is difficult to achieve position adjustment or second place. This not only requires extremely high control precision during surgery, but also has certain risks.

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