Retractable and rapid disconnect, floating diameter embolic coil product and delivery system

Inactive Publication Date: 2015-11-19
NDI TIP TEKNOLOJILERI ANONIM SIRKETI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0015]It is an object of the present invention to provide a vaso-occlusive device, and/or an embolic coil with a predetermined shape along its length that the embolic coil has specific properties conforming to a diameter of an aneurysm thereby taking the shape of the aneurysm in a relaxed condition with improved efficiency. The embolic coil can use the delivery assembly and method for delivering the embolic coil to insert, retract, reconnect, and rapidly disconnect the embolic coil from the delivery system in an embolization procedure.
[0016]It is an object of the present invention to provide a method of occluding a selected site in a vessel with a vaso-occlusive device, the method has the steps of accessing the site with a delivery assembly; deploying the vaso-occlusive device from the delivery assembly into the selected site of the vessel in a manner allowing the vaso-occlusive device to substantially assumes a shape of an inner surface of the vessel at the site; and, if required, connecting said delivery asse

Problems solved by technology

Coils are made of metal platinum or stainless steel such that coils are easily seen in radiographic images; however, large coils have a disadvantage in that these can disrupt the radiographic image.
Conventional framework coils may have problems adapting to the shape and/or diameter of the aneurysm sac because the unfolded predetermined three dimensional shape does not conform to the specific shape of the aneurysm sac, which is different each time as the aneurysm sac forms in all different shapes.
Conventional framework coils may form the intended three dimensional shape in an unpredictable fashion and in a less than optimal fit of the aneurysm sac, thereby necessitating multiple coils for an embolization procedure that increase the cost of the embolic procedure.
Conventional three dimensional shapes also are selected at or below the measured diameter of the aneurysm sac, which may result in three dimensional shaped coils not adapting well to the in-between sizes of a measured aneurysm sac.
In this instance, there is an increased risk of complications to the patient should a coil or part of a coil such as an end, become dislodged or fall out of the sac into the venial cavity.
Conventional coils may also lose shape if they are kinked, such as by the operation of the catheter.
Known catheter systems have no way to retract the coil.
If an end or kinked end of the coil, or the entire coil dislodges, from the deployed location there is a significant medical risk that the aneurysm may burst or trigger a clo

Method used

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  • Retractable and rapid disconnect, floating diameter embolic coil product and delivery system
  • Retractable and rapid disconnect, floating diameter embolic coil product and delivery system
  • Retractable and rapid disconnect, floating diameter embolic coil product and delivery system

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Example

[0041]Non-limiting embodiments of the present invention will be described below with reference to the accompanying drawings, wherein like reference numerals represent like elements throughout. While the invention has been described in detail with respect to the preferred embodiments thereof, it will be appreciated that upon reading and understanding of the foregoing, certain variations to the preferred embodiments will become apparent, which variations are nonetheless within the spirit and scope of the invention.

[0042]The terms “a” or “an”, as used herein, are defined as one or as more than one. The term “plurality”, as used herein, is defined as two or as more than two. The term “another”, as used herein, is defined as at least a second or more. The terms “including” and / or “having”, as used herein, are defined as comprising (i.e., open language). The term “coupled”, as used herein, is defined as connected, although not necessarily directly, and not necessarily mechanically.

[0043]R...

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Abstract

A vaso-occlusive device, delivery system and method of delivery to a selected site of the vessel in a manner allowing the vaso-occlusive device to substantially assumes a diameter of an inner surface of the vessel or aneurism sac at the site of the embolization procedure. The vaso-occlusive device or embolic coil has specific properties of wanting to float and conform to the diameter of the aneurysm sac thereby enabling retractability and rapid disconnect detachment for such embolic coil, and a predetermined shape requiring fewer embolic coils per embolization procedure advantageously improving patient risk, and the cost and time of the procedure. A method for deploying the embolic coil with such specific properties to the site of an aneurysm using a delivery system configured for deploying the embolic coil features inserting, and/or reconnecting for positioning and reinserting the embolic coil.

Description

FIELD OF THE INVENTION[0001]The present invention relates to an embolic coil product, delivery system, and method for deploying an embolic coil and, more particularly, an embolic coil with specific properties conforming to a diameter of an aneurysm thereby taking the shape of the aneurysm using a method and delivery assembly that can be used to insert, retract, reconnect, and rapidly disconnect from the embolic coil.BACKGROUND OF THE INVENTION[0002]Conventional mechanical occlusion devices or coils are used for embolization procedures of AVF, aneurysms, or other vascular lesions. These coils can be deployed accurately to a location, e.g. exactly where the catheter ends. In the human brain, different factors such as anatomic anomalies can occur in the arterial blood vessels, thus forming stretched out sacs or aneurysms. Embolization procedures insert coils that may immediately clot the aneurysm sac, thereby stopping the thinner, weaker sidewalls of the arteries from bulging outward f...

Claims

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Application Information

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IPC IPC(8): A61B17/12
CPCA61B17/12145A61B17/12031A61B2017/00867A61B2017/1209A61B2017/1205A61B17/12109A61B17/12113A61B2017/12054A61B2017/12077
Inventor ISLAK, CIVANDEMIRALP, SADIK SEMIHBOYD, GARTH W.KUSKE, MICHAEL J.HABERGER, CAM E.
Owner NDI TIP TEKNOLOJILERI ANONIM SIRKETI
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