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US 2003/0212419 A1Published application
Aneurysm embolization device and deployment system
AssigneeCordis Neurovascular, Inc.
InventorClinton B. West
Life of this patent
Estimating the term…
Abstract
An aneurysm embolization device and deployment system for use in occluding the flow of blood at a preselected position within a vessel of the human body comprising a headpiece and a plurality of spherical members linked together with a central connecting member, which, when deployed the embolization device occludes the flow of blood in a high volume or wide neck aneurysm.
Claims21
An aneurysm embolization device and deployment system for use in placing said embolization device at a preselected position within a vessel of a human body, said embolization device and deployment system comprising:
- a deployment catheter having a small diameter lumen extending therethrough and having a proximal section and a distal section, said catheter being formed of a material which is sufficiently flexible to pass through the vessel of the body, the proximal section of said catheter exhibiting the characteristic of having substantially no radial expansion when fluid pressure is applied to the lumen of said catheter, and the distal section of said catheter exhibiting the characteristic that, when fluid pressure is applied to the lumen of said catheter the distal section of said catheter expands radially;
- a headpiece having a proximal section and a distal section, the distal section of said headpiece takes the form of a hemisphere and the proximal section of said headpiece takes the form of a cylinder;
- a central connecting member which takes the form of a flexible fiber, said connecting member having a proximal end and a distal end, the proximal end of said connecting member being attached to the distal section of said headpiece;
- a spherical member which takes the form of a small diameter ball, said spherical member being disposed about the distal end of said central connecting member;
- a connector coupled to the proximal section of said deployment catheter and adapted for a fluid pressure generating device;
- and,
- said proximal section of said headpiece being disposed within the distal section of said deployment catheter so that when a fluid pressure is applied to the lumen of said catheter the distal section of said catheter expands radially thereby releasing said headpiece.
4 more elements
An aneurysm embolization device for use in occluding the flow of blood at a preselected position within a vessel, said embolization device comprising:
- a headpiece having a proximal section and a distal section, the distal section of said headpiece takes the form of a hemisphere and the proximal section of said headpiece takes the form of a cylinder;
- a central connecting member which takes the form of a flexible fiber, said connecting member having a proximal end and a distal end, the proximal end of said connecting member being attached to the distal section of said headpiece;
- and,
- a spherical member which takes the form of a small diameter ball, said spherical member being disposed about the distal end of said central connecting member.
1 more element
A method for placing an aneurysm embolization device at a pre-selected position within a vessel, the method comprising the steps of:
- providing a delivery catheter comprising an elongated flexible tube with a lumen extending therethrough;
- introducing said deliver catheter into the vasculature of the human body;
- providing a deployment catheter having a small diameter lumen extending therethrough and having a proximal section and a distal section, said catheter being formed of a material which is sufficiently flexible to pass through the vessel of the body, the proximal section of said catheter exhibiting the characteristic of having substantially no radial expansion when fluid pressure is applied to the lumen of said catheter, and the distal section of said catheter exhibiting the characteristic that, when fluid pressure is applied to the lumen of said catheter the distal section of said catheter expands radially;
- providing an aneurysm embolization device comprising a headpiece having a proximal section and a distal section, the distal section of said headpiece takes the form of a hemisphere, the proximal section of said headpiece takes the form of a cylinder and is disposed within said deployment catheter;
- said embolization device also comprising a central connecting member which takes the form of a flexible fiber, said connecting member having a proximal end and a distal end, the proximal end of said connecting member being attached to the distal section of said headpiece;
- said embolization device also comprising a spherical member which takes the form of a small diameter ball, said spherical member being disposed about the distal end of said central connecting member;
- introducing said deployment catheter and said aneurysm embolization device into said delivery catheter and aligning said aneurysm embolization device with said pre-selected position within said vessel;
- and,
- applying fluid pressure to said deployment catheter causing the distal section of the said deployment catheter to expand radially and thereby cause the aneurysm embolization device to release from said deployment catheter.
6 more elements
Dependencies are inferred from the claim text.