Inner member support block
View Patent ↗An angioplasty catheter and method for making and using the same. An angioplasty catheter comprises an inner tube having a proximal end, a distal end, and a lumen extending therethrough; an outer tube disposed over the inner tube, the outer tube having a proximal end and a distal end; a balloon coupled to the distal end of the outer tube; an inflation lumen defined between the inner tube and the outer tube, the inflation balloon in fluid communication with the balloon; and a support block coupled to the inner tube. In addition, a method for manufacturing an angioplasty catheter is disclosed.
1. An elongate medical device, comprising:
an outer tubular member having a proximal end, a distal end and a lumen extending therethrough;
an elongate shaft disposed within at least a portion of the lumen of the outer tubular member, the elongate shaft having a proximal end and a distal end;
a balloon coupled to the distal end of the outer tubular member;
an inflation lumen defined between the elongate shaft and the outer tubular member, the inflation lumen in fluid communication with the balloon; and
a support block secured to the elongate shaft, the support block including a fluid passageway in fluid communication between the inflation lumen and the balloon, and an abutment surface abutting the distal end of the outer tubular member, wherein at least a portion of the support block extends distal of the distal end of the outer tubular member;
wherein the support block further comprises a proximal region and a distal region, at least a portion of the proximal region having an outer diameter less than the lumen of the outer tubular member, and at least a portion of the distal region having an outer diameter greater than the lumen of the outer tubular member.
2. The elongate medical device of claim 1 , wherein at least a portion of the proximal region is disposed within the inflation lumen.
3. The elongate medical device of claim 1 , wherein the distal region is tapered.
4. The elongate medical device of claim 1 , wherein the proximal region includes a plurality of proximal fins.
5. The elongate medical device of claim 1 , wherein the distal region includes a plurality of distal fins.
6. The elongate medical device of claim 1 , wherein the support block further comprises a plurality of valleys defining the fluid passageway.
7. The elongate medical device of claim 1 , wherein the support block is movable relative to the outer tubular member.
8. The elongate medical device of claim 1 , wherein at least a portion of the support block is disposed within the balloon.
9. The elongate medical device of claim 1 , wherein the support block further comprises a proximal region having a plurality of proximal fins.
10. The elongate medical device of claim 9 , wherein the plurality of proximal fins are collapsible.
11. The elongate medical device of claim 1 , wherein the support block further comprises a distal region having a plurality of distal fins.
12. The elongate medical device of claim 11 , wherein the plurality of distal fins are collapsible.
13. An elongate medical device, comprising:
an outer tubular member having a proximal end, a distal end and a lumen extending therethrough;
an elongate shaft disposed within at least a portion of the lumen of the outer tubular member, the elongate shaft having a proximal end and a distal end;
a balloon coupled to the distal end of the outer tubular member;
an inflation lumen defined between the elongate shaft and the outer tubular member, the inflation lumen in fluid communication with the balloon; and
a support block secured to the elongate shaft proximate to the distal end of the outer tubular member and slidable relative to the outer tubular member, the support block including a fluid passageway providing fluid communication between the inflation lumen and the balloon:
wherein the support block further comprises a proximal region and a distal region, at least a portion of the proximal region having an outer diameter less than the lumen of the outer tubular member, and at least a portion of the distal region having an outer diameter greater than the lumen of the outer tubular member.
14. The elongate medical device of claim 13 , wherein the support block is capable of translatory motion relative to the outer tubular member.
15. The elongate medical device of claim 13 , wherein the support block further comprises a plurality of valleys defining the fluid passageway.
16. The elongate medical device of claim 13 , wherein the support block further comprises a plurality of fins.
17. The elongate medical device of claim 16 , wherein the plurality of fins are longitudinal fins.
18. The elongate medical device of claim 16 , wherein the plurality of fins are collapsible.