Biotronik Ag

Hans Lang

Matthias Wesselmann

Amir Fargahi

Alwin Schwitzer

Bodo Quint

Stefan Loher

Patrice Bachmann

Daniel Wintsch

Dragica Pantic

Susanne Pfenninger-Ganz

Tobias Brunner

Adrian Blaser

Christoph Hoser

Semijan Hani

Horst Josef Fischer

Tommy Conzelmann

Christoph Hannes Hoser

A catheter shaft includes a first tube made of an extrudable copolymer that has reactive groups, and a second tube made of a polymeric material, which is welded to the first tube. A distal balloon is welded to the first tube.

Catheter shaft comprising welded tubes

An implant having a preferably hollow cylindrical basic structure. A nonwoven fabric is disposed in and/or on the basic structure, the nonwoven fabric preferably comprising biocompatible thermoplastic polyurethane and/or a polymer selected from the group consisting of polylactic acid, polycaprolactone, and a copolymer thereof, and/or a polymer including polyphosphazene. At least in at least one section of the implant, preferably at the proximal and/or distal ends of the implant, fastening means are provided or the nonwoven fabric is treated such that, at least in the expanded state of the implant, the protrusion of nonwoven fabric sections from the implant is significantly reduced. Furthermore, a method for producing such an implant is provided.

Implant and method for producing the same

An implant having a preferably hollow cylindrical basic structure. A nonwoven fabric is disposed in and/or on the basic structure, the nonwoven fabric preferably comprising biocompatible thermoplastic polyurethane and/or a polymer selected from the group consisting of polylactic acid; polycaprolactone, and a copolymer thereof, and/or a polymer including polyphosphazene. At least in at least one section of the implant, preferably at the proximal and/or distal ends of the implant, fastening means are provided or the nonwoven fabric is treated such that, at least in the expanded state of the implant, the protrusion of nonwoven fabric sections from the implant is significantly reduced. Furthermore, a method for producing such an implant is provided.

A balloon catheter, in particular for delivering medicaments, stents or medicament-coated stents in the region of a stenosis, comprising

Balloon catheter, in particular for delivering drugs or stents in the region of a stenosis

One embodiment of the invention relates to a catheter shaft comprising (i) a first tube made of an extrudable copolymer that has reactive groups, and (ii) a second tube made of a polymeric material, which can be welded to the first tube, wherein the polymeric material of the second tube can be welded to the first tube at a temperature &#x2266;200&#xb0; C.

A combined rolling membrane-balloon catheter, in particular for expanding stenoses in bodily vessels, including: an outer shaft () and an inner shaft () which is axially displaceable therein, an intermediate shaft () situated between the inner and outer shafts () which is likewise axially displaceable, a rolling membrane () which is attached in a pressure-tight manner between the distal end () of the outer shaft () and the distal end () of the inner shaft (), and which may be displaced between a passive position within the outer shaft () and an active position which is distally expanded from the outer shaft () by the action of pressure, and a dilatable balloon () which is attached in a pressure-tight manner between the distal end () of the inner shaft () and the distal end of the intermediate shaft (), and which may be displaced between a passive position within the outer shaft () and proximally in front of the rolling membrane (), and an active position which is distally expanded from the outer shaft (), within the rolling membrane (), by the action of pressure.

Combined rolling membrane-balloon catheter

A balloon catheter, including an outer shaft with a distal end and a fluid line, an inner part located distal anterior to its distal end, as well as a balloon that can be inflated under the influence of a fluid that has been pressurized by the fluid line, that is fastened fluid-tight onto the distal end section of the outer shaft with a first fastening zone at its proximal end, and fluid-tight onto inner part with a second fastening zone at its distal end, whereby the balloon, on at least one of its two ends is designed without cone and with essentially unvarying thin wall thickness, the balloon is provided on at least one of its two ends with respectively one twist anterior to its fastening zone, and a second balloon is placed above the first balloon and is also provided with a twist on at least one of its two ends anterior to the fastening zone, that is directed in the opposite direction of the twist of the first balloon end that is positioned underneath.

Growing community of inventors

Buchs, Switzerland

Hans Lang