APPARATUS FOR ANCHORING AN INTRAVASCULAR DEVICE ALONG A GUIDEWIRE

• US 20070123913A1
• Filed: 01/10/2007
• Published: 05/31/2007
• Est. Priority Date: 02/24/2003
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Smith, Scott, Hansen, James, Vrba, Anthony, Eskuri, Alan, Cassell, Robert, Kostur, Gary, Beulke, Mel, Broome, Thomas, Daniel, John, Vogel, Jeffrey, Molland, Douglas
• Granted Patent: US 8,152,832 B2
• Time in Patent Office: Days
• US Class Current: 606/138
• CPC Class Codes: A61B 2017/22049 Means for locking the guide wire in the catheter
• CPC Class Codes: A61F 2/011 Instruments for their placement or removal
• CPC Class Codes: A61F 2/013 Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
• CPC Class Codes: A61F 2002/015 Stop means therefor
• CPC Class Codes: A61F 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/0067 conical

Abstract

Anchoring mechanisms for releasably securing an intravascular device along an elongated member such as a guidewire or catheter. The anchoring mechanism may include an object that can be actuated between an unlocked position and a locked position. In the unlocked position, the anchoring mechanism is slidably and rotationally disposed about the elongated member. In the locked position, the anchoring mechanism is releasably secured to the elongated member, preventing movement thereon. A placement mechanism such as a tubular member can be utilized to actuate the anchoring mechanism between the unlocked and locked positions.

Claims

1. An anchoring mechanism for releasably securing an intravascular device to an elongated member disposed within a body lumen, said anchoring mechanism comprising:

an object actuatable between an unlocked position and a locked position, wherein the object is slidably and rotationally disposed about the elongated member in the unlocked position, and is releasably secured to the elongated member in the locked position; and

placement means for actuating said object between the unlocked position and locked position;

wherein the placement means actuates the object into the unlocked position by radially compressing the object, thereby releasing the object from the elongated member.

2. An anchoring mechanism for releasably securing an intravascular device to an elongated member disposed within a body lumen, said anchoring mechanism comprising;

a spring coil-actuatable between an unlocked position and a locked position, wherein, the spring coil is slidably and rotationally disposed about the elongated member in the unlocked position, and is releasably secured to the elongated member in the locked position;

placement means for actuating said spring coil between the unlocked position and locked position; and

retrieval means for disengaging the spring coil from the locked position to the unlocked position;

the retrieval means configured to slide onto and off of the spring coil to actuate the spring coil between the unlocked and locked positions, respectively.

3. An intravascular device comprising:

an embolic protection filter slidably disposed on a guidewire; and

anchoring means for attaching the embolic protection filter to the guidewire, said anchoring means comprising an anchoring mechanism actuatable between an unlocked position and a locked position, wherein the anchoring mechanism is slidably disposed along the guidewire in the unlocked position, is releasably secured to the guidewire in the locked position; and

has a portion attached to the embolic filter.

4. An intravascular device comprising:

an embolic protection filter slidably disposed on a guidewire;

anchoring means for attaching the embolic protection filter to the guidewire, said anchoring means comprising an object actuatable between an unlocked position and a locked position, wherein the anchoring mechanism is slidably disposed along the guidewire in the unlocked position, is releasably secured to the guidewire in the locked position, and has a portion attached to the embolic filter; and

placement means for actuating said anchoring mechanism between the unlocked position and locked position.

5. An anchoring mechanism for releasably securing an intravascular device to an elongated member disposed within a body lumen, said anchoring mechanism comprising an object actuatable between an unlocked position and a locked position, wherein the object is slidably and rotationally disposed about the elongated member in the unlocked position, and is releasably secured to the elongated member in the locked position;

wherein the object is in a locked position when uncompressed and in an unlocked position when radially compressed.

6. The anchoring mechanism of claim 5, wherein said elongated member is a guidewire.

7. The anchoring mechanism of claim 5, wherein said elongated member is a catheter.

8. The anchoring mechanism of claim 5, wherein said object comprises a spring coil having a proximal portion and a distal portion.

9. The anchoring mechanism of claim 8, wherein the proximal portion of said spring coil extends proximally in a U-shape configuration such that when unconstrained radially, the spring coil is releasably secured to the elongated member in the locked position.

10. The anchoring mechanism of claim 5, further comprising placement means for actuating said object between the unlocked position and locked position.

11. The anchoring mechanism of claim 10, wherein said placement means comprises a tubular member.

12. The anchoring mechanism of claim 5, further comprising retrieval means for disengaging the object from the locked position to the unlocked position.

13. An anchoring mechanism for releasably securing an intravascular device to an elongated member disposed within a body lumen, said anchoring mechanism comprising:

a spring coil-actuatable between an unlocked position and a locked position, wherein the spring coil is slidably and rotationally disposed about the elongated member in the unlocked position, and is releasably secured to the elongated member in the locked position; and

a placement device actuatable to move said spring coil between the unlocked position and locked position;

wherein said placement device is a tube slidable onto and off of the spring coil and elongated member.