CPC A61B 1/313 (2013.01) [A61B 1/044 (2022.02); A61B 17/3415 (2013.01); A61B 17/3421 (2013.01); A61B 1/00165 (2013.01); A61B 17/34 (2013.01); A61B 2017/3413 (2013.01); A61B 17/3478 (2013.01); A61B 2017/3486 (2013.01); A61B 2217/007 (2013.01)] | 9 Claims |
1. A device, comprising:
a balloon, the balloon comprising: a first end comprising a first hole, and a second end comprising a second hole;
a canula comprising a first axial through hole;
a needle tube comprising a second axial through hole, the needle tube being disposed in the first axial through hole;
an image acquisition device disposed in the second axial through hole; and
a fluid injection tube;
wherein:
the balloon is axially disposed on the canula; the first end of the balloon is disposed on an outer wall of a front end of the needle tube, and the second end of the balloon is disposed on an outer wall of a front end of the canula;
a fluid channel disposed between the outer wall of the needle tube and an inner wall of the balloon, and between the outer wall of the needle tube and an inner wall of the canula; and
the fluid injection tube is connected to the fluid channel.
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