| CPC A61B 18/1492 (2013.01) [A61B 17/320068 (2013.01); A61B 17/3496 (2013.01); A61B 18/1815 (2013.01); A61B 18/24 (2013.01); A61B 2017/00778 (2013.01); A61B 2017/320074 (2017.08); A61B 2018/00386 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00982 (2013.01); A61B 2018/1861 (2013.01); A61M 25/0012 (2013.01); A61M 25/005 (2013.01)] | 27 Claims |

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1. A shunting catheter, comprising:
a catheter shaft including a shaft lumen; and
a slicing element including a distal end and a proximal end, and comprising a slicing element shaft, a puncture element, and a slicer;
wherein the slicing element is disposed in the shaft lumen at a first state;
wherein the slicing element is extended from the catheter shaft at the proximal end of the slicing element at a second state;
wherein the puncture element is disposed at the distal end of the slicing element;
wherein the slicing element further comprises a mechanical indicator protruded from the slicing element shaft;
wherein the mechanical indicator is configured to act as a mechanical stop for the slicing element by contacting tissue of a patient at the second state.
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