US 10,893,932 B2Granted

Implant and method for producing the same

AssigneeBIOTRONIK SE & Co. KG

InventorsDaniel Wintsch, Stefan Loher, Bodo Quint, Patrice Bachmann, Hans Lang, Dragica Pantic, Alwin Schwitzer

Life of this patent

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Abstract

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.

Claims9

Dependent claims

An implant formed as endovascular stent, the implant comprising:

a basic structure formed as a hollow cylinder, wherein the basic structure comprises a magnesium alloy and/or biodegradable polymer;
a nonwoven fabric disposed in and/or on the basic structure, the nonwoven fabric comprising a biocompatible thermoplastic polyurethane and/or a polymer selected from the group consisting of polylactic acid, polycaprolactone, a copolymer of polylactic acid and polycaprolactone, and a polyphosphazene;
wherein at least one section of the implant further comprises a fastening means comprising a hydrogel or a hydrogel-based adhesive or the nonwoven fabric is treated to prevent or reduce, at least in an expanded state of the implant, either:
a protrusion of nonwoven fabric sections from the basic structure, and/or
formation of more extensive regions, which comprises fibers or fiber sections protruding from the basic structure.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/358,543Filed 19 Mar 2019 · continuation
Priority: 23 Apr 2010
Published: US 2019/0314137 A117 Oct 2019
Granted: 19 Jan 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

A61F 2/07
Blood vessels: stent-grafts
A61L 31/06
Macromolecular materials: obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
A61F 2/90
Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure: characterised by…
A61F 2002/072
Stent-grafts: encapsulated stents, e.g. wire or whole stent embedded in lining

Family

Application61/327,113Us provisional application · filed 23 Apr 2010
Application13/090,479Parent of this continuation · filed 20 Apr 2011
US 2019/0314137 A1Pre-grant publication · published 17 Oct 2019
US 10,271,941 B2Parent of this continuation
US 2011/0262684 A1Published application
US 10,893,932 B2This patent

From the US filing history. Foreign family members aren’t listed.