Self-aligning radiopaque ring
An intravascular device configured to be recaptured within a guide catheter has a ring located at the distal end of a delivery catheter. The ring has an outer diameter greater than that of the delivery catheter and a sloped guide surface near the outer edge of the ring to urge the ring and delivery catheter toward a radially centered position within the guide catheter.
1. A device for aligning components of an intravascular system, the device comprising:
a head having a face at a distal end of the device, the face having a face radius;
a body connected to the head and positioned proximally of the head, the body having a body radius wherein a ratio of the face radius to the body radius is in a range of 1.20 to 1.75;
a base connected to the body and positioned proximally of the body;
a guide surface positioned on the head and longitudinally between the face and the body, the guide surface extending distally radially outward and forming an angle with an outer surface of the body in a range of 100° to 160°; and
a major channel and a plurality of minor channels extending longitudinally from the distal end to the base, the plurality of minor channels communicating with the major channel in the head and being separated from the major channel in the base.
2. The device of claim 1 , further comprising a radiopaque material.
3. The device of claim 1 , wherein the plurality of minor channels are distributed radially about the major channel.
4. The device of claim 1 , wherein the guide surface extends from a radial outermost point of the head to a radial outermost point of the body.
5. The device of claim 1 , wherein the device is made of stainless steel.
6. The device of claim 1 , further comprising a plurality of posts extending from the body.
7. The device of claim 1 , further comprising a plurality of connection points.
8. The device of claim 1 , wherein the head and the body are integrally formed.
9. The device of claim 1 , wherein the head and the body form a unitary ring.