Transvenous Soaker Catheter Using Microfibers
First Claim
1. A catheter system for infusing a fluid medicament into target tissue in the vasculature of a patient which comprises:
- an infusion catheter having a distal end and a proximal end, wherein the infusion catheter is formed with a lumen extending between the distal and proximal ends of the catheter;
a catheter tip affixed to the distal end of the infusion catheter, wherein the catheter tip includes a fluid transfer device for directing the fluid medicament from the lumen of the catheter to a surface of the target tissue, for infusion of the fluid medicament through the surface and into the target tissue; and
an inflatable balloon mounted on the catheter tip, wherein the balloon is selectively inflatable for engagement thereof with a vessel wall in the vasculature, to anchor the catheter in the vasculature during an infusion of the fluid medicament.
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Accused Products
Abstract
A catheter tip for an infusion catheter has a hollow tubular shaped base member with a pair of annular shaped inflation balloons positioned in parallel on the base member. A plurality of microfibers are mounted on the cylindrical surface section between the balloons. The microfibers are in fluid communication with the lumen of the catheter tip. In operation, the catheter tip is advanced into the vasculature of a patient and to a site in a small vein that is near the target tissue for infusion. The balloons are then inflated to anchor the catheter tip, and fluid medicament is infused through the microfibers. In an alternate embodiment, the microfibers can be replaced with at least one orifice.
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Citations
20 Claims
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1. A catheter system for infusing a fluid medicament into target tissue in the vasculature of a patient which comprises:
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an infusion catheter having a distal end and a proximal end, wherein the infusion catheter is formed with a lumen extending between the distal and proximal ends of the catheter; a catheter tip affixed to the distal end of the infusion catheter, wherein the catheter tip includes a fluid transfer device for directing the fluid medicament from the lumen of the catheter to a surface of the target tissue, for infusion of the fluid medicament through the surface and into the target tissue; and an inflatable balloon mounted on the catheter tip, wherein the balloon is selectively inflatable for engagement thereof with a vessel wall in the vasculature, to anchor the catheter in the vasculature during an infusion of the fluid medicament. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A catheter tip apparatus for use with an infusion catheter to infuse a fluid medicament into target tissue in the vasculature of a patient which comprises:
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a hollow, tubular shaped base member having a proximal end, a distal end, and an outer surface extending therebetween, wherein the base member is formed with an inner lumen extending between the proximal and distal ends thereof for receiving the fluid medicament therein; a first inflatable balloon, wherein the first inflatable balloon is annular shaped and is mounted on the outer surface of the base member at the distal end of the base member; a second inflatable balloon, wherein the second inflatable balloon is annular shaped and is mounted on the outer surface of the base member at the proximal end of the base member and at a distance “
d”
from the first inflatable balloon to establish a cylindrical surface section therebetween; anda means for selectively inflating the first and second balloons to anchor the catheter tip in the vasculature during an infusion of the fluid medicament into the target tissue. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method for infusing a fluid medicament into target tissue in the vasculature of a patient which comprises the steps of:
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advancing a catheter tip to a site near the target tissue in the vasculature, wherein the catheter tip is affixed to a distal end of an infusion catheter, and wherein the catheter tip includes a fluid transfer device and is formed as a hollow, tubular shaped base member, with a first inflatable balloon mounted at a distal end of the base member and a second inflatable balloon mounted at a proximal end of the base member in parallel with the first inflatable balloon, with a distance “
d”
therebetween;inflating the first and second balloons to anchor the catheter tip in the vasculature during an infusion of the fluid medicament; and pumping the fluid medicament from a source and through the infusion catheter to the catheter tip, for directing the fluid medicament from the fluid transfer device of the catheter tip to a surface of the target tissue, for infusion of the fluid medicament through the surface and into the target tissue. - View Dependent Claims (19, 20)
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Specification