| CPC A61B 17/3478 (2013.01) [A61B 1/0008 (2013.01); A61B 1/00158 (2013.01); A61B 1/05 (2013.01); A61B 1/0661 (2013.01); A61B 1/07 (2013.01); A61B 17/3403 (2013.01); A61B 17/3421 (2013.01); A61B 90/361 (2016.02); A61B 2017/3413 (2013.01); A61B 2090/378 (2016.02)] | 12 Claims |

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1. A medical device having a visual puncture apparatus, wherein the visual puncture apparatus comprises a puncture assembly, an imaging assembly, and a display device, wherein the puncture assembly comprises a puncture needle and a puncture cannula, wherein the puncture cannula is detachably sleeved around the puncture needle, the distal end of the puncture needle has a puncture tip that protrudes from the puncture cannula, the puncture assembly has a working channel provided in the puncture cannula, the imaging assembly is configured to enable image acquiring, transmitting and processing, at least a part of the imaging assembly is arranged in the working channel, and the display device is used to display an image from the imaging assembly,
wherein the working channel is configured for simultaneously arranging at least a part of the imaging assembly and additional instruments in the working channel, wherein the instruments are one or more selected from the following: a laser, a radio frequency device, a microwave device, an ultrasonic lithotripsy system, a pneumatic ballistic lithotripsy system, a vibration device, a radiofrequency ablation device, and a sample collecting device;
an outer diameter of the puncture needle or the puncture cannula is 0.35 mm to 3.2 mm;
the visual puncture apparatus further comprises a multi-ports connector, wherein the multi-ports connector is disposed at a proximal end of the puncture assembly and is operably connected with the puncture cannula; the multi-port connector has several ports, wherein at least one of the ports receives the additional instruments for entering or quitting the puncture cannula through the at least one of the ports, and at least another port receives the at least a part of the imaging assembly for entering or quitting through the at least another port;
the multi-ports connector further comprising a puncture needle connection portion such that the puncture needle is releasably connectable to the multi-ports connector,
wherein the multi-ports connector is configured such that the puncture needle and the imaging assembly are further connected to the multi-ports connector such that the imaging assembly is inserted into the multi-ports connector and then into the puncture needle so that a whole process of the puncture is visible, and
wherein the multi-ports connector is configured such that the puncture needle and the imaging assembly are separable from the puncture cannula after puncturing is completed, and such that after the puncture needle is separated from the puncture cannula, a part of the imaging assembly is inserted into the working channel through one of the ports of the multi-ports connector, and the additional instrument is inserted into the working channel through another port simultaneously.
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