Woven embolic device

A technology for embolization and braiding, which is applied in the field of braided embolization devices and can solve the problems of coil softness, shape memory and negative effects of flexibility, etc.

Pending Publication Date: 2021-08-24
ACCUMEDICAL BEIJING LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, clinical and experimental studies have shown that the use of such filaments has a negative impact on the coil's physical properties (e.g., coil softness, shape memory, and flexibility)

Method used

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  • Woven embolic device
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  • Woven embolic device

Examples

Experimental program
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Embodiment Construction

[0022] now refer to figure 1 , shows a partial perspective view of an exemplary braided embolic device 20 . In at least one embodiment, device 20 includes a plurality of individual strands 22 braided together to form an embolic braid 24 having an elongated primary shape. First, it should be noted that the term "strand" in its broadest sense is intended to include wires, fibers, filaments or other individual elongated members. In addition, the term "radiopaque" refers to its usual meaning: radiopaque, that is, made of one or more materials (for example, platinum, chromium, cobalt, tantalum, tungsten, nitinol, gold, silver, stainless steel or its alloys), the material suppresses the flux of electromagnetic radiation to improve visibility during imaging. continue to refer figure 1 The proximal end 26 of the embolic braid 24 is removably engaged with a delivery mechanism 28, such as a wire for moving the embolic braid 24 through the catheter 30. At this point, it should be not...

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PUM

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Abstract

A woven embolic device is disclosed. In at least one embodiment, a plurality of individual strands are braided together as an embolic braid having a proximal end and an opposing distal end, the embolic braid forming an elongate primary shape that can be inserted into a catheter. During use of the device, when the distal end of the embolic braid subsequently exits the catheter, the embolic braid is configured to become a shape memory type secondary shape capable of filling a target region of the patient's vasculature.

Description

[0001] related application [0002] This application claims priority to US Patent Application 17 / 164,497 filed February 1, 2021. Background technique [0003] Any and all patents and published patent applications cited or described in this application are hereby incorporated by reference into this application by applicant. [0004] By way of background, an embolic coil is one example of a device that may be used to block blood flow into an aneurysm. One or more embolic coils are introduced into diseased blood vessels to slow blood flow, which allows for a more complete blockage of the natural blood clotting process. Embolization coils are typically made of biocompatible materials (eg, platinum) to minimize associated issues of tissue irritation and rejection. The shape of these coils is usually a complex three-dimensional curve that fills portions of the vessel lumen and slows blood flow through these portions. Typically, polymer fibers are added to the metal coil, enhancin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/12
CPCA61B17/12113A61B17/12145A61B17/1215A61B2017/0092A61B2017/1205A61B2017/00867A61B17/12031A61B2090/3966A61B90/39
Inventor 泰·萧乔纳森·佩雷斯
Owner ACCUMEDICAL BEIJING LTD
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