Lumen Stent Delivery Devices and Systems

Abstract

The invention relates to an endoluminal stent transporter and a system. The endoluminal stent transporter includes a fixed anchor, the fixed anchor includes an anchor portion, the anchor portion includes a first anchor piece, and a plurality of distal repeating units are formed on the first anchor piece. Each distal repeating unit includes a first wave ring positioning groove, a limiting plate, a limiting plate and a first wave ring positioning groove arranged in sequence along the circumferential direction of the first anchor. The fixed anchor also includes a limiting part, the limiting part is connected with the distal end of the first anchor, and the diameter of the circumscribed circle formed by connecting the bottom distal ends of the plurality of first corrugated positioning grooves is smaller than that of the limiting part. outside diameter. The endoluminal stent delivery device can release the endoluminal stent at an accurate position.

Description

technical field [0001] The invention relates to the field of interventional medical devices, in particular to a lumen stent delivery device and system. Background technique [0002] The human aorta is divided into ascending aorta, aortic arch, descending thoracic aorta and abdominal aorta. Due to various pathological changes, such as inflammation, ulcer, etc., which will cause damage to the aortic intima or vessel wall, aneurysm disease is prone to occur under the joint action of blood flow impact. Once the aneurysm ruptures, a large amount of blood will flow out of the blood vessel, and the patient's blood circulation is insufficient, resulting in shock or death. [0003] For the treatment of aneurysm disease, the common methods are divided into surgical treatment and drug treatment. At present, the main treatment method is surgical treatment. The traditional surgical treatment is surgical operation. After the establishment of extracorporeal blood circulation, the aneurys...

AI Technical Summary

Problems solved by technology

During the release process of the endoluminal stent, due to the retraction of the sheath, a certain amount of friction will be generated on the endoluminal stent, resulting in the risk of displacement of the endoluminal stent along with the sheath during the release process, making the positioning of the endoluminal stent incorrect. Accurate, not up to the expected clinical effect of endoluminal stents

In addition, the blood flow pressure in the aortic vessel is high and the impact force is strong. After the endoluminal stent is released, the blood impacts the endoluminal stent, which will cause the risk of stent displacement.

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