Patents Assigned to Cordis Neurovascular, Inc.
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Patent number: 7179345Abstract: An improved balloon catheter seal which may be used for attaching an inflatable balloon to a catheter body, especially when the balloon and catheter body are formed from dissimilar materials. The seal is formed by applying a layer of adhesive material between the inflatable balloon and the catheter body, and crimping a retaining ring over each seal junction. The invention is especially useful when joining a compliant balloon made from silicone to a catheter body made from polyurethane.Type: GrantFiled: July 29, 2005Date of Patent: February 20, 2007Assignee: Cordis Neurovascular, Inc.Inventor: Boris Shkolnik
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Patent number: 7166100Abstract: A balloon catheter for medical treatment of a patient, including therapeutic dilatation or deployment of medical devices such as stents or grafts. The balloon catheter has an “over-the-wire configuration, including a proximal hub defining an inflation port and a guidewire port, a flexible shaft defining an inflation lumen and a guidewire lumen, a balloon near a distal end of the catheter, and a distal guidewire port. At least a portion of the shaft has an inner tubular body defining at least a portion of the guidewire lumen, surrounded by an outer tubular body defining at least a portion of the inflation lumen. A proximal portion of the inner body is reinforced by a hypotube, which provides much greater column strength and torsional stiffness. A distal end of the hypotube provides a graduated flexibility transition with a distal spiral-cut segment, in which the pitch of the spiral cut pattern decreases to provide increasing flexibility.Type: GrantFiled: June 29, 2004Date of Patent: January 23, 2007Assignee: Cordis Neurovascular, Inc.Inventors: Amanda Jordan, Darren Sherman, Robert Slazas, Stephen West
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Patent number: 7160266Abstract: An improved balloon catheter which includes a purge mechanism for purging air from the catheter prior to use. The purge mechanism is sized to allow air to pass through, but highly restricts the flow of liquids. Air remaining in the catheter after purging is allowed to diffuse through the balloon prior to use. The mechanism is especially useful with low-pressure, gas-permeable, compliant balloons.Type: GrantFiled: July 28, 2005Date of Patent: January 9, 2007Assignee: Cordis Neurovascular, Inc.Inventor: Boris Shkolnik
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Patent number: 7156871Abstract: An expandable stent having a covering which exhibits the characteristic of being normally dissolvable in blood, but upon being activated, becomes inert to blood. The stent may be placed across the neck of an aneurysm to seal the aneurysm and thereafter the portion of the covering of the stent across the neck of the aneurysm is activated to become inert to blood and the balance of the covering dissolves to permit blood to flow to adjacent vessels.Type: GrantFiled: October 28, 2004Date of Patent: January 2, 2007Assignee: Cordis Neurovascular, Inc.Inventors: Donald K. Jones, Marc Ramer
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Patent number: 7147659Abstract: An expandable stent having a covering which exhibits the characteristic of upon being activated by applying an agent to the covering, dissolving to expose a portion of the underlying stent. The stent may be placed across the neck of an aneurysm to seal the aneurysm and thereafter a selected region of the covering may be dissolved by an activating agent to permit blood to flow to adjacent vessels.Type: GrantFiled: October 28, 2004Date of Patent: December 12, 2006Assignee: Cordis Neurovascular, Inc.Inventor: Donald K. Jones
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Patent number: 7108708Abstract: A method for placing an embolic coil into an aneurysm utilizing a delivery system having a deflected distal section. The delivery system stabilizes an embolic coil deployment system thereby placing the embolic coil with greater accuracy.Type: GrantFiled: October 8, 2003Date of Patent: September 19, 2006Assignee: Cordis Neurovascular, Inc.Inventors: Eric Cheng, Larry Dominguez
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Patent number: 7083632Abstract: An aneurysm embolic device is disclosed for use in occluding the flow of blood within an aneurysm. The aneurysm embolic device includes an expandable sealing member having a circular joining member and reinforcing spokes which give the sealing member a slightly cupped configuration. The embolic device also includes an occlusive member carried by the expandable sealing member. When the aneurysm embolic device is deployed within the aneurysm, the sealing member expands and the occlusive member fills the aneurysm preventing the flow of blood within the aneurysm.Type: GrantFiled: November 15, 2002Date of Patent: August 1, 2006Assignee: Cordis Neurovascular, Inc.Inventors: Ernesto Avellanet, Robert Lulo
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Patent number: 7070609Abstract: 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.Type: GrantFiled: December 5, 2003Date of Patent: July 4, 2006Assignee: Cordis Neurovascular, Inc.Inventor: Stephen West
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Patent number: 7037331Abstract: A very small diameter intravascular stent device which may be used to occlude or partially occlude an aneurysm in the human brain which is comprised of a thin-walled skeletal cylindrical tube formed of undulating or sinusoidal elements which, when compressed, nest tightly with each other.Type: GrantFiled: December 22, 2003Date of Patent: May 2, 2006Assignee: Cordis Neurovascular, Inc.Inventors: Vladimir Mitelberg, Donald K. Jones
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Patent number: 7018394Abstract: An apparatus system (38) and method for introducing and retrieving a medical device deployment system (50) into the vasculature of a human body at a preselected position within a vessel. The apparatus (38) includes an introducer (10) having a detachable and re-attachable sheath (12) disposed about a deployment catheter (42).Type: GrantFiled: January 10, 2002Date of Patent: March 28, 2006Assignee: Cordis Neurovascular, Inc.Inventors: Roberto Diaz, Mamdouh Elsakka, Boris Shkolnik
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Patent number: 7001422Abstract: An expandable stent and delivery system is provided for enhancing luminal dilation of a blood vessel and treating aneurysms. The delivery system includes proximal, intermediate and distal cylindrical members disposed on and spaced apart along an elongated core member such that first and second gaps are formed. The expandable stent includes anchor members which align with the gaps. The expandable stent is mounted on the intermediate cylindrical member, and the anchor members are disposed within the gaps thereby locking the stent onto the core member.Type: GrantFiled: February 12, 2003Date of Patent: February 21, 2006Assignee: Cordis Neurovascular, INCInventors: Angeli Escamilla, Donald K. Jones, Vladimir Mitelberg
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Patent number: 6994687Abstract: An improved balloon catheter which includes a purge mechanism for purging air from the catheter prior to use. The purge mechanism is sized to allow air to pass through, but highly restricts the flow of liquids. Air remaining in the catheter after purging is allowed to diffuse through the balloon prior to use. The mechanism is especially useful with low-pressure, gas-permeable, compliant balloons.Type: GrantFiled: May 25, 2000Date of Patent: February 7, 2006Assignee: Cordis Neurovascular, Inc.Inventor: Boris Shkolnik
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Patent number: 6989020Abstract: An embolic coil retrieval system for retrieving or repositioning an embolic coil within the vasculature of the human body which is comprised of a very small embolic coil retriever having a jaw member with major and minor teeth which form pockets for grasping an embolic coil when the jaw member is closed.Type: GrantFiled: September 23, 2002Date of Patent: January 24, 2006Assignee: Cordis Neurovascular, Inc.Inventors: Donald K. Jones, Vladimir Mitelberg
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Patent number: 6964671Abstract: A method and apparatus for placing a medical agent, such as an embolic coil into a vessel, or aneurysm, by utilizing a stabilizing catheter to retain or support a medical agent deployment device.Type: GrantFiled: June 28, 2001Date of Patent: November 15, 2005Assignee: Cordis Neurovascular, Inc.Inventors: Eric Cheng, Larry Dominguez, Ajay K. Wakhloo
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Patent number: 6960228Abstract: A very small diameter intravascular stent device which may be used to occlude or partially occlude an aneurysm in the human brain, the stent device includes a thin-walled skeletal cylindrical tube fonned of S-shaped, or sinusoidal, elements which, when compressed, nest tightly with each other.Type: GrantFiled: November 25, 2003Date of Patent: November 1, 2005Assignee: Cordis Neurovascular, Inc.Inventors: Vladimir Mitelberg, Donald K. Jones
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Patent number: 6960227Abstract: An expandable stent and delivery system is provided for enhancing luminal dilation of a blood vessel. The delivery system includes proximal, intermediate and distal cylindrical members disposed on and spaced apart along an elongated core member such that first and second gaps are formed. The expandable stent includes proximal and distal anchor members which align with the gaps. The expandable stent is mounted on the intermediate cylindrical member, and the anchor members are disposed within the gaps thereby locking the stent onto the core member.Type: GrantFiled: July 23, 2004Date of Patent: November 1, 2005Assignee: Cordis Neurovascular, Inc.Inventors: Donald K. Jones, Vladimir Mitelberg
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Patent number: 6955685Abstract: An expandable stent and delivery system therefor is provided for treating vascular diseases such as partially occluded blood vessels and aneurysms. The delivery system includes proximal, intermediate and distal cylindrical members disposed about an elongated core member. The proximal, intermediate, and distal cylindrical members are spaced apart such that first and second gaps are formed. The expandable stent includes anchor members which are formed by winding a radiopaque coil onto a threaded portion of a strut member of the expandable stent. The expandable stent is mounted on the intermediate cylindrical member with the anchor members disposed within the gaps between the cylindrical members. A deployment catheter is used to compress and constrain the stent about the intermediate cylindrical member to thereby interlock the stent onto the core member.Type: GrantFiled: June 27, 2003Date of Patent: October 18, 2005Assignee: Cordis Neurovascular, Inc.Inventors: Angeli Escamilla, Donald K. Jones, Vladimir Mitelberg
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Patent number: 6953468Abstract: A method as provided for occluding the vasculature of a patient. The method comprises the steps of providing a plurality of embolic coils having a textured surface. The embolic coils are introduced into the patient's vasculature. In this manner, the textured surface provides improved platelet adhesion compared to a non-textured surface, to promote clotting. In the illustrative embodiment, the embolic coil comprises a platinum-tungsten alloy wire and the texturing is performed by abrasion or sandblasting to provide substantially uniform roughness comprising pockets having diameters of about 0.125 microns to about fifty microns and depths of about 0.25 microns to about twenty microns.Type: GrantFiled: June 13, 2001Date of Patent: October 11, 2005Assignee: Cordis Neurovascular, Inc.Inventors: Donald K. Jones, Vladimir Mitelberg
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Patent number: 6811560Abstract: A method and device used for treating an aneurysm of a patient. An embolization element that is adapted to reduce or block the blood flow into the aneurysm, together with a stent connected to the embolization element, is provided. The embolization element includes an expandible member. The embolization element and the stent are introduced into the vessel leading to and communicating with the aneurysm. The embolization element is directed into the aneurysm, with the stent being located in the vessel communicating with the aneurysm. In this manner, the stent becomes compressed against the inner wall of the vessel for anchoring the embolization element. In one form of the invention, the stent comprises a helical coil and the embolization element comprises a collapsible framework.Type: GrantFiled: September 20, 2001Date of Patent: November 2, 2004Assignee: Cordis Neurovascular, Inc.Inventors: Donald K. Jones, Vladimir Mitelberg
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Patent number: 6811561Abstract: A medical apparatus for placing an embolic coil at a preselected position within a vessel comprising a coil assembly having an embolic coil attached to a cylindrical headpiece having at least one bending point formed by a circumferential groove and a deployment catheter having a distal section for retaining the coil assembly such that, when the deployment catheter is pressurized with a fluid the distal section of the catheter expands radially to release the coil assembly at the preselected position.Type: GrantFiled: March 11, 2002Date of Patent: November 2, 2004Assignee: Cordis Neurovascular, Inc.Inventors: Roberto Diaz, Robert Lulo, Brett E. Naglreiter