Intravascular device with carrier tube engagement member
View Patent ↗An intravascular device having an elongate shaft and a proximal hub assembly. The proximal hub assembly includes an interference fit member (IFM) which forms an interference fit with a carrier tube to reduce the tendency of the device to fall out of the carrier tube during handling and to provide for easy removal of the device when ready for use.
1. An intravascular device suitable for packaging in a package lumen defined by a package lumen wall, the intravascular device comprising:
an elongate shaft having a proximal portion; and
a hub assembly connected to the proximal portion of the elongate shaft, the hub assembly including an interference fit member (IFM) which is configured to form an interference fit with the package lumen wall when the intravascular device is disposed in the package lumen;
wherein the interference fit establishes sufficient friction to resist gravitational and handling forces which may otherwise cause the intravascular device to fall out of the package lumen;
wherein the friction created by the interference fit is sufficiently small to permit easy removal of the intravascular device from the package lumen; and
wherein the IFM comprises one or more rings.
2. An intravascular device as in claim 1 , wherein the one or more rings has a middle portion and a distal end portion and a proximal end portion.
3. An intravascular device as in claim 2 , wherein the middle portion of the ring has a larger diameter than the end portions.
4. An intravascular device as in claim 2 , wherein the end portions taper from the diameter of the middle portion to a smaller diameter than the middle portion.
5. An intravascular device as in claim 1 , wherein the one or more rings has a middle portion and a proximal tapered portion.
6. An intravascular device suitable for packaging in a package lumen defined by a package lumen wall, the intravascular device comprising:
an elongate shaft having a proximal portion; and a hub assembly connected to the proximal portion of the elongate shaft, the hub assembly including an interference fit member (IFM) which is configured to form an interference fit with the package lumen wall when the intravascular device is disposed in the package lumen;
wherein an inner diameter of the package lumen wall is smaller than the outer diameter of the IFM such that the IFM deforms the package lumen wall when the IFM is in an interference fit with the package lumen wall; and
wherein the IFM causes the package lumen wall to bulge outwardly when the IFM is disposed within the package lumen wall.
7. An intravascular device suitable for packaging in a package lumen defined by a package lumen wall, the intravascular device comprising:
an elongate shaft having a proximal portion; and
a hub assembly connected to the proximal portion of the elongate shaft, the hub assembly including an interference fit member (IFM) which is configured to form an interference fit with the package lumen wall when the intravascular device is disposed in the package lumen;
wherein the interference fit establishes sufficient friction to resist gravitational and handling forces which may otherwise cause the intravascular device to fall out of the package lumen;
wherein the friction created by the interference fit is sufficiently small to permit easy removal of the intravascular device from the package lumen;
wherein the hub assembly includes a hub and a strain relief, and wherein the IFM is carried by the hub; and
wherein the IFM is disposed on a distal end of the hub, proximal the strain relief.