Exchangeable delivery system with distal protection
View Patent ↗Medical device delivery systems that include a distal protection feature are provided. A distal tip member that includes a distal protection device and a mounting region for a self-expandable, intraluminal medical device is slidably disposed within a passageway defined by a tubular member.
1. A medical device delivery system comprising:
an elongate tubular member comprising a circumferential wall and having first proximal and distal ends, the elongate tubular member defining a passageway extending between the first proximal and distal ends and having a protrusion disposed on an inner surface at the distal end;
a distal tip member slidably disposed within the first passageway and having proximal and distal portions, the proximal portion defining a mounting region;
a distal protection device disposed on the distal portion of the distal tip member; and
a self-expandable intraluminal medical device disposed on the mounting region of the distal tip member;
wherein the proximal portion includes second proximal and distal ends and the distal tip member includes a proximal flange disposed on the second proximal end and adapted to engage the protrusion;
further comprising a distal flange disposed on the second distal end, the distal flange adapted to temporarily engage the protrusion;
wherein the proximal and distal portions comprise separate members;
wherein the distal tip member further comprises a separable junction joining the proximal and distal portions; and
wherein the separable junction comprises at least one barb disposed on the distal portion and at least one cavity adapted to receive the at least one barb.
2. The medical device delivery system according to claim 1 , wherein the distal flange comprises a pliable material.
3. The medical device delivery system according to claim 1 , wherein the proximal flange comprises a rigid material.
4. The medical device delivery system according to claim 1 , wherein the at least one cavity is formed in the second distal end.
5. The medical device delivery system according to claim 1 , wherein the at least one cavity is formed in the distal flange.
6. The medical device delivery system according to claim 1 , wherein the circumferential wall defines an exchange port extending through the circumferential wall and providing access to the passageway.
7. The medical device delivery system according to claim 1 , wherein the self-expandable intraluminal medical device comprises a stent.
8. The medical device delivery system according to claim 1 , wherein the self-expandable intraluminal medical device comprises a prosthetic valve.
9. The medical device delivery system according to claim 1 , wherein the distal protection device comprises a self-expandable mesh.
10. The medical device delivery system according to claim 9 , wherein the self-expandable mesh is formed of stainless steel.
11. The medical device delivery system according to claim 1 , wherein the self-expandable intraluminal medical device comprises a self-expandable filter.
12. The medical device delivery system according to claim 1 , wherein the self-expandable intraluminal medical device comprises a vessel occluder.
13. The medical device delivery system according to claim 8 , wherein the prosthetic valve comprises a prosthetic venous valve.