Visual intraoperative stent delivery device and intraoperative stent system thereof

Abstract

The invention relates to the field of cardiovascular medical treatment, and particularly discloses a visual intraoperative stent delivery device and an intraoperative stent system thereof. The delivery device comprises a supporting rod, a probe end used for detecting image information in real time, a transmission tube used for image signal transmission and a displaying end used for displaying images, wherein the probe end, the transmission tube and the displaying end are connected in sequence; an image channel is arranged in the supporting rod; an entrance end of the image channel is located at the rear section of the supporting rod, and an exit end of the image channel is located on the front end face of the supporting rod; and the transmission tube penetrates from the entrance end of theimage channel and is connected with the probe end after penetrating out from the exit end of the image channel; the intraoperative stent system comprises the delivery device and a covered stent; thecovered stent includes a metal net of a self-expandable structure and a cover film coating the metal net; and the metal net is configured to be compressed on the supporting rod through the cover film.The visual intraoperative stent delivery device and the intraoperative stent system can realize distant end visualization of the covered stent implantation, thereby lowering the operation risk.

Description

Technical field[0001]The invention relates to the field of cardiovascular medical treatment, in particular to a visual type intraoperative stent delivery device and an intraoperative stent system including the visual type intraoperative stent delivery device.Background technique[0002]Aortic dissection is an acute aortic disease with rapid onset, rapid progress, high mortality, difficult surgery, and poor prognosis; the pathophysiology of aortic dissection is that the aortic intima ruptures and blood flow rushes into the middle aorta, leading to The middle layer of the aorta splits to form true and false cavities; at present, the most common surgical method for the treatment of aortic dissection and aortic aneurysms is aortic arch replacement and stent trunk surgery, which uses deep hypothermic circulatory arrest to replace artificial quadrant vessels. The aortic arch and its three vascular branches (brachial trunk, left common carotid artery, left subclavian artery), and simultaneou...

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Problems solved by technology

[0004] The inventors of the present invention have found in long-term practice that the intraoperative stent system still has at least the following technical problems in clinical application: the introduction process of the covered stent through the delivery device is blind to a certain extent, because the operator can only see the chest descending clearly. The condition of the proximal end of the aorta cannot see the implantation of the distal end, so the operation often requires special guidance or judgment based on the experience of the surgeon; the former requires CT imaging data, or advances through the femoral artery under X-ray guidance The guide wire is then introduced into the elephant trunk stent through the guide wire, which needs to be completed in the hybrid operating room, which increases the complexity of the operation and is not conducive to popularization and application; lumen risk, which, if occurred, would have catastrophic consequences for continued dilation and rupture of the descending aorta

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