Inflation lumen kink protection and balloon profile
A balloon guide catheter having a sleeved inflation lumen secured with a wire wrap for improved inflation lumen kink protection and a welded balloon construction provides a robust and flexible catheter with an exceptionally large inner lumen relative to its outer profile and enables rapid and reliable balloon inflation and deflation in a highly deliverable and kink resistant catheter. Balloon guide catheters having multiple sleeved inflation lumens and proximal luers for utilizing the multiple inflation lumens are also provided.
1. A catheter comprising:
an elongated tubular member comprising:
a proximal end;
a distal end;
a top;
a bottom; and
an outer surface;
two inner surfaces comprising:
an inner hollow lumen extending between the proximal end and the distal end;
an inflation lumen extending between the proximal end and the distal end; the inflation lumen is disposed radially outward of the inner hollow lumen;
wherein the inflation lumen is smaller than the inner hollow lumen;
wherein the inflation lumen is located approximate at least one of the top or bottom portion of the elongated tubular member outside the inner hollow lumen;
an inner core with an inner core thickness and forming the inner hollow lumen;
a balloon connected to the inflation lumen;
wherein the balloon extends from the distal end and secured to the elongated tubular member;
a wire configuration pattern comprising a wire that segregates the wire over the inflation lumen securing the inflation lumen exteriorly to the inner core; the wire being arranged exteriorly of the inner hollow lumen and exteriorly of the inflation lumen .
2. The catheter of claim 1 , wherein the balloon extends beyond the distal end of the elongated tubular member.
3. The catheter of claim 1 , wherein the balloon is secured to the elongated tubular member by a tie-layer.
4. The catheter of claim 1 , wherein the wire configuration comprises a braided pattern.
5. The catheter of claim 1 , further comprising a split wire configuration comprising a wire that segregates the wire both under and over the inflation lumen.
6. The catheter of claim 5 , wherein the wire configuration comprises a braided pattern.
7. A catheter comprising:
an elongated tubular member comprising:
a proximal end;
a distal end;
a top;
a bottom; and
an outer surface;
two inner surfaces comprising:
an inner hollow lumen extending between the proximal end and the distal end;
an inflation lumen extending between the proximal end and the distal end;
wherein the inflation lumen is smaller than the inner hollow lumen;
wherein the inflation lumen is located approximate at least one of the top or bottom portion of the elongated tubular member outside the inner hollow lumen;
an inner core with an inner core thickness;
a balloon connected to the inflation lumen;
wherein the balloon extends from the distal end and secured to the elongated tubular member;
wherein a seamless balloon is secured to the elongated tubular member by a bond across only a partial arc of the elongated tube member ensuring that the seamless balloon inflates eccentrically.
8. The catheter of claim 7 , wherein when inflated the balloon is not concentric with the inner core.
9. The catheter of claim 7 , wherein a degree of eccentricity in which the seamless balloon inflates eccentrically is altered by placement of the bond.
10. A catheter comprising:
a substantially tubular inner core forming an inner hollow lumen;
a first inflation sleeve comprising a first inflation lumen therethrough and extending a majority of the length of the tubular inner core;
a wound wire mesh securing the first inflation sleeve to an outer surface of the tubular inner core; wherein the wound wire mesh secures a second inflation sleeve to the outer surface of the tubular inner core;
a balloon affixed to a distal portion of the tubular inner core and in fluidic communication with the first inflation lumen of the first inflation sleeve.
11. The catheter of claim 10 , wherein the first inflation sleeve comprises a substantially crescent shape cross section.
12. The catheter of claim 10 , further comprising a polymeric layer disposed between the first inflation sleeve and the wound wire mesh.
13. The catheter of claim 12 , further comprising a polymeric jacket sleeve encircling the tubular inner core.
14. The catheter of claim 13 , wherein the polymeric jacket sleeve is fused with the polymeric layer disposed between the inflation sleeve and the wound wire mesh, and wherein the polymeric jacket sleeve effectively seals a damaged opening in the first inflation sleeve.
15. The catheter of claim 7 , wherein the wound wire mesh comprises wires that run together over and under the first inflation sleeve and the second inflation sleeve collectively.
16. The catheter of claim 10 , wherein the wound wire mesh comprises wires that run individually over and under the first inflation sleeve and the second inflation sleeve thereby separating the first inflation sleeve from the second inflation sleeve.
17. The catheter of claim 10 , wherein the balloon inflates to have a substantially trapezoidal profile characterized by a larger diameter distal end and a smaller diameter proximal end.
18. The catheter of claim 17 , wherein the balloon inflates to define an angle measurable between a line parallel to a non-parallel side of the trapezoidal profile and a line parallel to the distal portion of the tubular inner core, and wherein the angle measures less than 70 degrees.
19. The catheter of claim 10 , wherein the wound wire mesh comprises:
a first plurality of wire segments extending across an outer surface of the first inflation sleeve; and
a second plurality of wire segments extending under an inner surface of the first inflation sleeve,
wherein a majority of the wire segments in the first plurality of wire segments are each substantially parallel to each other,
wherein a majority of the wire segments in the second plurality of wire segments are each substantially parallel to each other, and
wherein some of the first plurality of wire segments cross some of the second plurality of wire segments.
20. An assembly comprising:
a catheter comprising:
a substantially tubular inner core forming an inner hollow lumen;
a first inflation sleeve comprising a first inflation lumen therethrough and extending a majority of the length of the tubular inner core;
a wound wire mesh securing the first inflation sleeve to an outer surface of the tubular inner core;
a balloon affixed to a distal portion of the tubular inner core and in fluidic communication with the first inflation lumen of the first inflation sleeve;
a second inflation sleeve comprising a second inflation lumen therethrough and extending a majority of the length of the tubular inner core; wherein the wound wire mesh secures the second inflation sleeve to the outer surface of the tubular inner core;
a first opening approximate a proximal end of the catheter providing a first fluidic passageway from the first inflation lumen of the first inflation sleeve to exterior of the catheter; and
a second opening approximate the proximal end of the catheter providing a second fluidic passageway from the second inflation lumen of the second inflation sleeve to the exterior of the catheter; and
a luer comprising:
a distal opening sized to receive a proximal portion of the catheter;
a vent port configured to communicate with the second opening;
a pump port configured to communicate with the first opening; and
a proximal opening configured to allow insertion of devices into an inner hollow lumen of the catheter.
21. The assembly of claim 20 , wherein the luer further comprises:
a valve movable from an isolation position to a communication position, wherein, when the valve is in the isolation position, the luer is configured to isolate flow to or from the second opening from flow to or from the first opening, and wherein, when the valve is in the communication position, the luer is configured to provide a fluid path between the second opening and the first opening.
22. A method for operating an assembly including: a catheter having: a substantially tubular inner core forming an inner hollow lumen; a first inflation sleeve comprising a first inflation lumen therethrough and extending a majority of the length of the tubular inner core; a wound wire mesh securing the first inflation sleeve to an outer surface of the tubular inner core; a balloon affixed to a distal portion of the tubular inner core and in fluidic communication with the first inflation lumen of the first inflation sleeve; a second inflation sleeve comprising a second inflation lumen therethrough and extending a majority of the length of the tubular inner core, wherein the wound wire mesh secures the second inflation sleeve to the outer surface of the tubular inner core; a first opening approximate a proximal end of the catheter providing a first fluidic passageway from the first inflation lumen of the first inflation sleeve to exterior of the catheter; and a second opening approximate the proximal end of the catheter providing a second fluidic passageway from the second inflation lumen of the second inflation sleeve to the exterior of the catheter; and the assembly further including a luer having: a distal opening sized to receive a proximal portion of the catheter; a vent port configured to communicate with the second opening; a pump port configured to communicate with the first opening; and a proximal opening configured to allow insertion of devices into an inner hollow lumen of the catheter, the method comprising the step of:
flowing a fluid into and out of the catheter by flowing the fluid into the first inflation lumen, through the balloon, and out the second inflation lumen.
23. The method of claim 22 , further comprising the step of:
inflating the balloon by providing the fluid simultaneously into the first inflation lumen and the second inflation lumen.
24. The method of claim 22 , further comprising the step of:
deflating the balloon by providing suction simultaneously at the first inflation lumen and the second inflation lumen.