Delivery device and stent system

A delivery device and branching technology, which is applied in the field of medical devices, can solve the problems of large diameter of the delivery device, achieve the effect of convenient use, simple operation, and expansion of the scope of indications

Active Publication Date: 2022-04-12
SHANGHAI MICROPORT ENDOVASCULAR MEDTECH (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a delivery device and a stent system for the larger diameter of the delivery device suitable for bifurcated stent graft delivery

Method used

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  • Delivery device and stent system
  • Delivery device and stent system
  • Delivery device and stent system

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Embodiment Construction

[0039] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0040] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counte...

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Abstract

The conveying device comprises an outer sheath tube, a multi-cavity tube and an inner catheter, the multi-cavity tube is provided with a fixing cavity and a guiding cavity which are axially through, the multi-cavity tube comprises a main body section and a reducing section located at the far end of the main body section, and the diameter of the reducing section is smaller than that of the main body section; a containing gap is formed between the outer wall of the reducing section and the inner wall of the outer sheath tube, the inner catheter is connected into the fixing cavity in a sleeved mode and is relatively fixed to the multi-cavity tube, the far end of the inner catheter extends out of the far end of the multi-cavity tube, and the multi-cavity tube and the inner catheter are movably arranged in an inner cavity of the outer sheath tube in the axial direction of the outer sheath tube at the same time. According to the conveying device and the stent system, the inflection section formed when the branch sheath controls the guide wire to be inflected is contained in the containing gap, under the condition that the diameter of the multi-cavity tube is not reduced, the maximum diameter of the outer sheath tube can be effectively reduced, wounds are reduced, the conveying device and the stent system are suitable for more patients, and the indication range is expanded; and a doctor is more convenient to use and simpler to operate during an operation.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a delivery device and a bracket system. Background technique [0002] Aortic disease, such as aortic aneurysm and aortic dissection, is one of the most deadly and difficult vascular surgical diseases. Endovascular repair (EVAR) of aortic dissection with covered metal stents is a new method developed in recent years. A minimally invasive and simple interventional procedure for patients with high-risk thoracic aortic dissection and abdominal aortic dissection. However, common complications associated with EVAR treatment include graft-to-graft endoleak and graft displacement. To solve this problem, bifurcated covered stents (including stented left leg and stented right leg) can be used for treatment For abdominal aortic aneurysm, the bifurcated covered stent graft is sent to the lesion position of the aorta through the incision of the left and right femoral arteries through...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/12
CPCA61B17/12
Inventor 刘金宏奚利峰马明洁卞其波徐健伟朱清
Owner SHANGHAI MICROPORT ENDOVASCULAR MEDTECH (GRP) CO LTD
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