Catheter device
First Claim
1. A catheter device for transferring fluid material to or from a selected-length segment of a vessel, comprising, in operative condition:
- a first catheter having a tube with distal and proximal ends, an inflatable balloon carried adjacent the distal end of the tube, a channel extending through the tube, and a fluid conduit for supplying fluid to the balloon from the tube'"'"'s proximal end;
a second catheter having a tube with distal and proximal ends, an inflatable balloon carried adjacent the distal end of the tube, and a fluid conduit for supplying fluid to the balloon from the tube'"'"'s proximal end, said second-catheter tube and balloon being insertable into and through the first-catheter channel, with such balloon in a deflated condition,;
a fluid passageway formed by an interlumen space between the channel wall in the first catheter and the confronting wall of the tube in the second catheter, and communicating a proximal end region of the first catheter tube with a region between the two balloons, with such placed operatively in the vessel; and
means associated with the second catheter for guiding the distal end of the second catheter within said first catheter channel, with the second catheter balloon in a deflated condition, and in the vessel region distal to the first catheter balloon.
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0 Petitions
Accused Products
Abstract
A catheter device for transferring fluid material to or from one or more selected-length segment of a vessel. The device includes first and second catheters, each having a tube with distal and proximal ends, an inflatable balloon carried on the tube, adjacent the distal tube end, and a fluid conduit for supplying the balloon, with such operatively positioned in the vessel. A central region of the second-catheter tube is axially shiftable within the first-catheter tube, allowing the balloons to be placed at desired relative positions in the vessel. Fluid is injected into the region between the two balloons through a fluid passageway formed in a channel in the first-catheter tube.
452 Citations
15 Claims
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1. A catheter device for transferring fluid material to or from a selected-length segment of a vessel, comprising, in operative condition:
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a first catheter having a tube with distal and proximal ends, an inflatable balloon carried adjacent the distal end of the tube, a channel extending through the tube, and a fluid conduit for supplying fluid to the balloon from the tube'"'"'s proximal end; a second catheter having a tube with distal and proximal ends, an inflatable balloon carried adjacent the distal end of the tube, and a fluid conduit for supplying fluid to the balloon from the tube'"'"'s proximal end, said second-catheter tube and balloon being insertable into and through the first-catheter channel, with such balloon in a deflated condition,; a fluid passageway formed by an interlumen space between the channel wall in the first catheter and the confronting wall of the tube in the second catheter, and communicating a proximal end region of the first catheter tube with a region between the two balloons, with such placed operatively in the vessel; and means associated with the second catheter for guiding the distal end of the second catheter within said first catheter channel, with the second catheter balloon in a deflated condition, and in the vessel region distal to the first catheter balloon. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A catheter device for transferring material to or from one or more selected vascular branches of a segment of blood vessel comprising, in operative condition:
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a first catheter having a tube with distal and proximal ends, an inflatable balloon carried adjacent the distal end of the tube, a channel extending through the tube, and a fluid conduit for supplying fluid to the balloon from the tube'"'"'s proximal end; a second catheter having a tube with distal and proximal ends, an inflatable balloon carried adjacent the distal end of the tube, said tube having a central bore forming a fluid conduit for supplying fluid to the balloon from the tube'"'"'s proximal end, a central region of the tube between the two tube ends being slidably carried within the channel of the first-catheter tube, to allow placement of the two balloons a selected axial distance from one another on upstream and downstream sides of such selected vascular branches; the channel wall in the catheter and the confronting wall of the tube in the second catheter, defining an interlumen space which forms a fluid passageway extending through the first-catheter tube, with the device placed operatively in such vessel; an annular seal for sealing the two tubes adjacent their proximal ends, at a sealing compression which permits relative axial sliding movement of the two tubes; a guide wire extending through the bore in the second-catheter tube, and secured to the distal end of that tube; and means carried adjacent the proximal end of the second-catheter tube, for rotating the guide wire with respect to the first-catheter tube.
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8. A method of transferring a fluid material to or from a selected-length vessel segment defined by proximal and distal ends, said method comprising:
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providing a catheter device having (a) a first catheter having a tube with distal and proximal ends, an inflatable balloon carried adjacent the distal end of the tube, a channel extending through the tube, and a fluid conduit for supplying fluid to the balloon from the tube'"'"'s proximal end, (b) a second catheter having a tube with distal and proximal ends, an inflatable balloon carried adjacent the distal end of the tube, and a fluid conduit for supplying fluid to the balloon from the tube'"'"'s proximal end, said second-catheter tube and balloon being insertable into and through the first-catheter channel, with such balloon in a deflated condition, (c) a fluid passageway formed by an interlumen space between the channel wall in the first catheter and the confronting wall of the tube in the second catheter, and communicating a proximal end region of the first catheter tube with a region between the two balloons, with such placed operatively in the vessel, and (d) means associated with the second catheter for guiding the distal end of the second catheter within said first catheter channel and in the region distal thereto, inserting the first catheter device into such vessel to position the first catheter balloon at the proximal end of such segment, guiding said second catheter through the channel in the first catheter and into the region distal thereto, to position the second balloon at the distal end of such segment, inflating the balloons, to seal the segment, and transferring fluid material to or from such sealed vessel segment through such fluid passageway. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A catheter device for transferring fluid material to or from a selected-length segment of a vessel, comprising, in operative condition:
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a first catheter having a tube with distal and proximal ends, an inflatable balloon carried adjacent the distal end of the tube, a channel extending through the tube, and a fluid conduit for supplying fluid to the balloon from the tube'"'"'s proximal end; a second catheter having a tube with distal and proximal ends, an inflatable balloon carried adjacent the distal end of the tube, and a fluid conduit for supplying fluid to the balloon from the tube'"'"'s proximal end, a central region of the tube between the tube ends being slidably carried within the channel of the first-catheter tube, to allow placement of the two balloons a selected axial distance from one another within the vessel; and a fluid passageway in one of the two tubes communicating a proximal end region of that tube with a region between the two balloons, with such placed operatively in the vessel. wherein the second-catheter tube has a central bore forming the associated fluid conduit in the catheter, and the device further includes a guide wire extending through this bore and secured to the distal end of the tube, and means carried adjacent the proximal end of the second-catheter tube, for rotating the guide wire with respect to the first-catheter tube.
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Specification