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Electrolytic detachment for implant delivery systems

A technology for delivery systems and implants, which is applied in the field of electrolytic detachment of implant delivery systems, and can solve problems such as long time

Active Publication Date: 2016-11-23
TYCO HEALTHCARE GRP LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The end of the erodable wire, which represents the connection point between the implant and the delivery wire, can thus be extremely rigid and require a relatively long time to electrolytically erode to sever

Method used

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  • Electrolytic detachment for implant delivery systems
  • Electrolytic detachment for implant delivery systems
  • Electrolytic detachment for implant delivery systems

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Embodiment Construction

[0034] In the following detailed description, specific details are set forth to provide an understanding of the subject technology. It will be apparent, however, to one skilled in the art that the subject technology may be practiced without some of these specific details. In other instances, well-known structures and techniques have not been shown in detail in order not to obscure the subject technology.

[0035] Disclosed herein, according to some embodiments, achieves that detachment of implants from delivery systems may be improved by enhanced features for focusing electrolytic corrosion activity. Accordingly, various embodiments provide a detachment zone that may facilitate electrolytic detachment of the delivery mechanism, making the detachment process faster and more reliable. For example, the total cross-sectional area of ​​the detachment zone that must be electrolytically etched to achieve detachment may be significantly smaller than the total cross-sectional area of ...

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Abstract

Detachment of an implant from a delivery assembly can be electrolytic. A distal end of a core member and a proximal end of an implant can be joined together by one or more weld joints disposed axially between the distal end and the proximal end, the one or more weld joints being further disposed at a radially outermost periphery of the distal end and a radially outermost periphery of the proximal end. Delivery of a detachable implant as described herein can include advancing, to a target location within a patient, an implant having a proximal end and being connected to a distal end of a core member by one or more weld joints, as described above, and separating the implant from the core member by corroding the one or more weld joints.

Description

technical field [0001] The subject technology relates to the delivery of implantable devices by delivery systems. Background technique [0002] The use of endovascular techniques for implanting medical devices for the treatment and closure of body cavities such as arteries, veins, fallopian tubes or vascular malformations is known in the art. For example, occlusion of vascular aneurysms can be performed using implantable devices such as intrasaccular implants that are guided through a catheter by means of an intravascular delivery wire. Once moved to the treatment site, the intrasaccular implant can be moved into the lumen of the aneurysm to occlude the aneurysm. [0003] Severing of the implant from the delivery wire can be problematic. On the one hand, the device must be able to form the smallest possible profile in order to be guided through the fine bore of the catheter to its target position, and on the other hand it must result in a reliable severing of the implant. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/12A61F2/01A61F2/95
CPCA61B17/12113A61B17/12118A61B17/12145A61B2017/12063A61F2/01A61F2/95A61F2/011A61B17/12109A61B17/12172A61B2017/00526A61B2017/00867A61B2017/00929A61B2090/3966A61B17/12022A61B17/12136A61B17/1214A61B2017/1205A61B2017/12054A61B17/12031B23K31/02
Inventor 马建录
Owner TYCO HEALTHCARE GRP LP