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Conveying Devices and Systems

A technology of delivery device and guide wire, which is applied to devices, stents, blood vessels and other directions of human tubular structures, can solve the problems of low positioning accuracy and inability to release the covered stent, and achieves the effect of improving positioning accuracy and reducing driving force.

Active Publication Date: 2022-04-22
LIFETECH SCI (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the positioning accuracy of the delivery system in the prior art is not high, and the system cannot accurately and quickly release the stent graft

Method used

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  • Conveying Devices and Systems
  • Conveying Devices and Systems
  • Conveying Devices and Systems

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Embodiment Construction

[0038] 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 implementations disclosed below.

[0039] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directl...

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Abstract

The invention discloses a delivery device and system. The delivery device includes a sheath tube assembly and a handle assembly connected to the proximal end of the sheath tube assembly. The push tube, and the sheath tube which is sleeved on the outside of the push tube and can move axially relative to the push tube, the push tube is provided with a lumen channel for the inner core tube to pass through, and the sheath tube assembly It also includes a support located in the lumen channel, the length of the support is not longer than the length of the push tube. Beneficial effects of the present invention: by arranging a support in the lumen channel of the push tube, the distal end of the delivery device can have sufficient flexibility, and the proximal end of the delivery device can have sufficient supporting force to reduce the size of the lumen The driving force required when the bracket is released, thereby improving the overall positioning accuracy of the system.

Description

technical field [0001] The invention relates to the field of interventional medical devices, in particular to a delivery device and system. Background technique [0002] In the past ten years, endovascular exclusion of aortic stent grafts has been widely used in thoracic and abdominal aortic aneurysms and arterial dissections. treatment method. However, the positioning accuracy of the delivery system in the prior art is not high, and the system cannot accurately and quickly release the stent graft. Therefore, it is necessary to design a reliable delivery system. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a conveying device and system for the above-mentioned defects in the prior art. [0004] The technical solution adopted by the present invention to solve its technical problems is: [0005] A delivery device is provided, comprising a sheath tube assembly, and a handle assembly connected to the proximal e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/07A61F2/966
CPCA61F2/9522A61F2/9517A61F2/962A61F2/966A61F2/97A61F2002/9665
Inventor 江巍彭峰肖本好王刚
Owner LIFETECH SCI (SHENZHEN) CO LTD
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