Endovascular implant fixation retention structure and endovascular implant delivery system

An internal implant, fixed and maintained technology, applied in the field of intravascular implant delivery system, can solve problems such as limitations

Pending Publication Date: 2021-04-30
JIANGSU NOWYON MEDICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 3) The intravascular implant delivery system of the prior art usually needs to be used in conjunction with a microcatheter wi

Method used

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  • Endovascular implant fixation retention structure and endovascular implant delivery system
  • Endovascular implant fixation retention structure and endovascular implant delivery system
  • Endovascular implant fixation retention structure and endovascular implant delivery system

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Embodiment Construction

[0035] In order to make the object, advantages and characteristics of the present invention clearer, the following combination Figures 1 to 6 The intravascular implant fixing and holding structure proposed by the present invention and an intravascular implant delivery system including the intravascular implant fixing and holding structure are further described in detail. It should be noted that the drawings are in a very simplified form and all use inaccurate proportions, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention, and are not used to limit the limiting conditions for the implementation of the present invention, so they do not have technical In the substantive meaning above, any modification of structure, change of proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and goals tha...

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Abstract

The invention provides an endovascular implant fixing and maintaining structure and an endovascular implant conveying system. The endovascular implant fixing and maintaining structure is used for fixing, maintaining and separating an implant in the endovascular implant conveying process. The endovascular implant delivery system comprises a delivery tube, a guide wire penetrating through the delivery tube, and a holder connected to the guide wire. In the initial stage of conveying, the guide wire and the conveying pipe are kept relatively fixed, and the holder is located at the head of the conveying pipe and plays a role in fixing an implant; in the later stage of conveying, the guide wire and the conveying pipe move relatively, the holder extends out of the head of the conveying pipe, and the implant is released. When the length of the implant extending out of the far end of the conveying pipe does not exceed a certain value, the implant can be recovered to the adjusting position in the conveying pipe through the guide wire to be released again. According to the endovascular implant delivery system, the flexibility is good, the success rate is high, the repeated withdrawing and re-releasing functions are achieved, and the endovascular implant delivery system can adapt to various microcatheters.

Description

technical field [0001] The present invention relates to medical devices, and more particularly to an intravascular implant fixing and holding structure, and an intravascular implant delivery system comprising the intravascular implant fixing and holding structure. Background technique [0002] For the delivery of intravascular implants, the problems existing in the prior art include: [0003] 1) Intravascular implants are often inaccurately positioned in the blood vessel during the operation, and are not placed in the position expected by the doctor. Therefore, it is hoped that the intravascular implant can be recovered into the delivery tube before the endovascular implant is finally released, Release again after adjusting the position. In the prior art, the endovascular implant either cannot be recovered, or the length of the released endovascular implant exceeds 50% of the total length of the endovascular implant, and it is difficult to recover; however, the release of t...

Claims

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Application Information

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IPC IPC(8): A61F2/90A61F2/966A61F2/97A61B17/12
CPCA61B17/12109A61B17/1214A61B2017/1205A61F2/90A61F2/966A61F2/97A61F2250/0098
Inventor 贾晶张捷捷吴重草胡天宙刘振全孙冰
Owner JIANGSU NOWYON MEDICAL CO LTD
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