Aspiration medical device
Aspiration medical devices and methods for making and using aspiration medical devices are disclosed. An example aspiration medical device may include a catheter shaft having a distal end region and defining an inflow orifice adjacent to the distal end region. An aspiration member may be disposed within the catheter shaft. The aspiration member may have a plurality of axially-spaced fluid jets formed therein. A collar may be disposed over the aspiration member. The collar may have a jet support region disposed adjacent to at least one of the fluid jets and a wall support region disposed adjacent to a wall of the catheter shaft.
1. An aspiration medical device, comprising:
a catheter shaft having a distal end region and defining an inflow orifice adjacent to the distal end region;
an aspiration member disposed within the catheter shaft, the aspiration member having a plurality of axially-spaced fluid jets formed therein;
a collar disposed over the aspiration member, the collar having a jet support region disposed adjacent to at least one of the fluid jets and a wall support region disposed adjacent to a wall of the catheter shaft;
wherein the jet support region includes a jet opening that is aligned with one of the fluid jets; and
wherein the jet opening is angled proximally.
2. The aspiration medical device of claim 1 , wherein the aspiration member has a closed distal end.
3. The aspiration medical device of claim 1 , wherein at least some of the fluid jets are angled proximally.
4. The aspiration medical device of claim 1 , wherein at least some of the fluid jets are oriented in a direction that is normal to a longitudinal axis of the aspiration member.
5. The aspiration medical device of claim 1 , wherein the jet support region and the wall support region are coaxially arranged.
6. The aspiration medical device of claim 1 , wherein the jet support region is radially offset from a longitudinal axis of the wall support region.
7. The aspiration medical device of claim 1 , further comprising a second collar disposed over the aspiration member.
8. The aspiration medical device of claim 7 , wherein the second collar includes a second jet support region that is aligned with one of the fluid jets.
9. The aspiration medical device of claim 7 , wherein the collar is axially spaced apart from the second collar.
10. An aspiration medical device, comprising:
a catheter shaft having a distal end region, the catheter shaft including an inflow orifice adjacent to the distal end region and an outflow orifice disposed proximally of the inflow orifice;
an aspiration member disposed within the catheter shaft, the aspiration member having a plurality of axially-spaced fluid jets formed therein including a first fluid jet;
a first collar disposed along the aspiration member and positioned adjacent to the first fluid jet, the first collar having a jet support region and a wall support region; disposed adjacent to a wall of the catheter shaft
wherein the jet support region includes a first jet opening that is aligned with the first fluid jet; and
wherein the first jet opening is angled proximally.
11. The aspiration medical device of claim 10 , wherein the first fluid jet is oriented orthogonally to a longitudinal axis of the aspiration member.
12. The aspiration medical device of claim 10 , wherein the plurality of axially-spaced fluid jets includes a second fluid jet; and
further comprising a second collar disposed along the aspiration member and positioned adjacent to the second fluid jet.
13. The aspiration medical device of claim 10 , wherein the first collar is co-axially disposed within the catheter shaft.
14. The aspiration medical device of claim 10 , wherein the first collar includes a second jet opening.
15. The aspiration medical device of claim 10 , wherein the aspiration member includes a second fluid jet disposed opposite the first fluid jet, and wherein the first collar includes a first jet opening aligned with the first fluid jet and a second jet opening aligned with the second fluid jet.
16. An aspiration medical device, comprising:
a catheter shaft having a distal end region and an inflow orifice disposed along the distal end region;
an aspiration tube disposed within the catheter shaft, the aspiration tube having a closed distal end and having a plurality of axially-spaced fluid jets formed therein;
wherein the plurality of axially-spaced fluid jets includes a first fluid jet; and
a metallic 3-D printed collar disposed along the aspiration tube and aligned with the first fluid jet, the collar having a jet support region configured to support the first fluid jet and a wall support region configured to support a wall region of the catheter shaft disposed opposite the first fluid jet, wherein the jet support region includes a proximally-angled jet opening.