US 11,717,324 B2
Puncture device for creating a TIPS shunt and corresponding methods
Martin Bauer, Karlsruhe (DE)
Assigned to Angiomed GmbH & Co. Medizintechnik KG, Karlsruhe (DE)
Appl. No. 17/434,407
Filed by Angiomed GmbH & Co. Medizintechnik KG, Karlsruhe (DE)
PCT Filed Sep. 2, 2020, PCT No. PCT/EP2020/074432
§ 371(c)(1), (2) Date Aug. 26, 2021,
PCT Pub. No. WO2022/048738, PCT Pub. Date Mar. 10, 2022.
Prior Publication US 2022/0265317 A1, Aug. 25, 2022
Int. Cl. A61B 17/34 (2006.01); A61B 17/11 (2006.01)
CPC A61B 17/3496 (2013.01) [A61B 17/11 (2013.01); A61B 17/3478 (2013.01); A61B 2017/1139 (2013.01); A61B 2017/347 (2013.01); A61B 2217/005 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A puncture device for creating a TIPS shunt, comprising:
a solid puncture needle,
a sheath being arranged to surround the puncture needle, the puncture needle being slidably arranged inside the sheath so that the puncture needle can be moved between a first position in which the puncture needle protrudes beyond a distal end of the sheath and a second position where a tip of the puncture needle is retracted into the sheath, the sheath and the puncture needle being arranged so that in the second position, blood can be aspirated into the sheath through a gap between the puncture needle and the sheath,
a locking means being arranged for releasably locking the puncture needle in the first position and the second position, and
a hollow cylindrical portion connected to a proximal end of the puncture needle, the hollow cylindrical portion providing a fluid flow path for aspirated blood.