US 11,730,617 B2
Balloon catheter stent device with stent protrusions
Fabian Risch, Doerflingen (CH); and Tobias Schäfer, Blumberg-Fuetzen (DE)
Assigned to BIOTRONIK AG, Buelach (CH)
Appl. No. 16/649,924
Filed by BIOTRONIK AG, Buelach (CH)
PCT Filed Sep. 17, 2018, PCT No. PCT/EP2018/075041
§ 371(c)(1), (2) Date Mar. 23, 2020,
PCT Pub. No. WO2019/076557, PCT Pub. Date Apr. 25, 2019.
Claims priority of application No. 17196977 (EP), filed on Oct. 18, 2017.
Prior Publication US 2020/0276039 A1, Sep. 3, 2020
Int. Cl. A61F 2/958 (2013.01); A61B 17/22 (2006.01); A61B 17/3207 (2006.01); A61F 2/844 (2013.01)
CPC A61F 2/958 (2013.01) [A61B 17/22 (2013.01); A61B 17/320725 (2013.01); A61F 2/844 (2013.01); A61B 2017/22051 (2013.01); A61F 2230/0089 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A balloon catheter-stent device comprising:
a balloon catheter comprising a catheter tube and a radially expandable balloon;
a stent surrounding the balloon, the stent being radially expandable by inflation of the balloon;
wherein the stent comprises at least one folding protrusion that is a plate-like structure and that unfolds with radial expansion and axial shortening of the stent to form an outer stent protrusion, and wherein the plate-like structure is directly attached along an entire length of each of two adjacent lattice bar elements of the stent, wherein the two adjacent lattice bar elements run in different directions and intersect each other.