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Conveying device

A delivery device and limiter technology, which is applied in the field of related medical devices, can solve the problems of large instantaneous impulse force and tissue injury, etc., and achieve the effect of reducing injury and buffering outward expansion force

Active Publication Date: 2018-01-09
LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the self-expanding medical device is released at the distal end of the delivery sheath, it is easy to pop out quickly due to its outward expansion force, which will exert a large instantaneous impulse force on the tissue at the implantation site, which may cause tissue injury

Method used

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Embodiment Construction

[0055] 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.

[0056] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to t...

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Abstract

The invention provides a conveying device. The conveying device comprises a first limiting part and a connecting unit, wherein the connecting unit and the first limiting part are oppositely arranged and the connecting unit can move relative to the first limiting part, the connecting unit comprises a radial connecting part and at least two axial rods which are connected with the radial connecting part and face the first limiting part, and the connecting unit is used for being matched with the first limiting part so as to form a closed locking space.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a delivery device for delivering implanted medical devices. Background technique [0002] The use of interventional technology to accurately place medical devices (such as vascular stents, heart valves, heart defect occluders, vascular plugs, vascular filters) and drugs into the predetermined parts of the human heart or arteriovenous vessels requires the use of delivery devices. Delivery devices typically include a delivery sheath, guide wire, and pusher. The implantation process of the device includes: using a guide wire to establish a delivery channel; the distal end of the delivery sheath reaches the predetermined position under the guidance of the guide wire; removing the guide wire; placing the medical device into the delivery sheath, and using the pusher to push the medical device The instrument is advanced to the distal end of the delivery sheath; the medical instrument is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/00A61B17/12A61F2/966A61F2/07A61F2/24
CPCA61F2/2436A61F2002/9534A61F2002/9665A61F2/966A61F2/95
Inventor 姚斌刘香东
Owner LIFETECH SCIENTIFIC (SHENZHEN) CO LTD