Microcatheter devices and methods for targeted substance delivery
First Claim
1. A system for delivering a substance to a location within the body of human or animal subject, comprising:
- A) a tissue penetrating catheter device comprising;
a catheter body that is positionable within a body lumen of the subject; and
a tissue penetrating member having a lumen, said tissue penetrating member being advanceable, while the catheter body is positioned within a body lumen, from the catheter to a first location outside of that body lumen; and
B) a substance delivery catheter device that is advanceable through the lumen of the tissue penetrating member, said substance delivery catheter device comprising;
a substance delivery catheter body comprising a flexible microcatheter that is advanceable through the lumen of the tissue penetrating member, said catheter body having a side wall, a lumen and a distal end;
a closed, tissue penetrating distal tip member on the distal end of the substance delivery catheter body;
the tissue penetrating distal tip member being radiographically distinguishable from the substance delivery catheter body; and
at least one aperture formed in the side wall of the substance delivery catheter body such that substance delivered through the lumen of the substance delivery catheter will flow out of said at least one aperture.
1 Assignment
0 Petitions
Accused Products
Abstract
Delivery catheters useable to deliver substances, articles or devices to target locations within the bodies of human or animal subjects. The delivery catheter generally comprises a catheter having a tissue penetrating distal tip member on the distal end and one or more delivery aperture(s) whereby a substance, article or device may be delivered through the lumen of the catheter body and out of the delivery aperture(s). In some applications, the substance delivery catheter is used in combination with a transluminal tissue penetrating catheter having a penetrator that is advanced to a first location. The delivery catheter is then advanced through (or over) the penetrator, through intervening tissue, to a desired target location.
37 Citations
12 Claims
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1. A system for delivering a substance to a location within the body of human or animal subject, comprising:
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A) a tissue penetrating catheter device comprising; a catheter body that is positionable within a body lumen of the subject; and a tissue penetrating member having a lumen, said tissue penetrating member being advanceable, while the catheter body is positioned within a body lumen, from the catheter to a first location outside of that body lumen; and B) a substance delivery catheter device that is advanceable through the lumen of the tissue penetrating member, said substance delivery catheter device comprising; a substance delivery catheter body comprising a flexible microcatheter that is advanceable through the lumen of the tissue penetrating member, said catheter body having a side wall, a lumen and a distal end; a closed, tissue penetrating distal tip member on the distal end of the substance delivery catheter body;
the tissue penetrating distal tip member being radiographically distinguishable from the substance delivery catheter body; andat least one aperture formed in the side wall of the substance delivery catheter body such that substance delivered through the lumen of the substance delivery catheter will flow out of said at least one aperture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification