Abstract

A balloon catheter device (1) for atraumatic treatment of hollow organs is provided. It comprises a balloon catheter (2) with a balloon (3), a tubular functional sleeve (5) applied to the balloon for directed and segmented cushion-like deployment of the balloon for expansion of a hollow organ and simultaneous application of active substance into the wall of a hollow organ, and wherein the functional sleeve, in a starting state, is folded together with the balloon about a sleeve longitudinal axis, and wherein the folding of the functional sleeve is directed as a pleating about a sleeve longitudinal axis and, in an end state, can be unfolded in order to bear on an inner wall of a hollow organ, and wherein the tubular functional sleeve has planar portions and/or planar struts which delimit through-openings, such that the functional sleeve serves to limit a balloon expansion of the balloon in some sections.

IPC Classes  ?

• A61M 25/10 - Balloon catheters

Abstract

A tubular nonwoven structure as an active agent carrier (“sleeve”) for the atraumatic treatment of hollow organs, in particular applicable via a balloon catheter, as well as a method for the production thereof, wherein the sleeve is folded about a longitudinal sleeve axis in an initial state and is unfoldable in a final state for attachment to an inner wall of a hollow organ, the tubular sleeve is formed of first biodegradable polymer nanofibers and the folding of the sleeve is directed as pleating about a longitudinal sleeve axis, a medicinal active agent is incorporated into the first polymer nanofibers and/or is arranged in interspaces between the polymer nanofibers, and the first polymer fibers are formed such that the polymer fibers degrade over a period of 2 weeks to 3 months so that the active agent can be delivered to a hollow organ wall in this period of time.

IPC Classes  ?

• A61L 31/16 - Biologically active materials, e.g. therapeutic substances
• A61L 31/06 - Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds

Abstract

The invention relates to a tubular sleeve for the atraumatic treatment of hollow organs, wherein the sleeve is folded in an initial state and can be unfolded in order to lie against an inner wall of a hollow organ in a final state. The sleeve is characterized in that the sleeve is formed of an outer wall and an inner wall, which are arranged concentrically to each other, wherein the outer wall and the inner wall are tightly connected to each other at ends thereof in such a way that an approximately tubular compartment is formed in the region between the outer wall and the inner wall and the folding of the sleeve is directed about a sleeve longitudinal axis.

IPC Classes  ?

• A61F 2/06 - Blood vessels
• A61F 2/945 - Stents retaining their form, i.e. not being deformable, after placement in the predetermined place hardenable, e.g. stents formed in situ
• A61F 2/844 - Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents folded prior to deployment
• A61F 2/958 - Inflatable balloons for placing stents or stent-grafts