Tranjugular vein intrahepatic puncture device

Abstract

The invention discloses a jugular vein intrahepatic puncture device, and relates to the technical field related to medical instruments. Comprising a guide tube, a catheter and a puncture needle of a tubular structure. A bending adjusting section is arranged at the far end of the guide tube, a pre-bending section is arranged at the far end of the puncture needle, the bending adjusting section is of a hinge rotating shaft type snake bone structure capable of changing the bending angle and direction, and cutting grooves are distributed in the pre-bending section in a staggered mode in the tip end direction of the puncture needle. The catheter is used for being arranged in the guide tube in a penetrating mode, the puncture needle is used for being arranged in the catheter in a penetrating mode, and a control device used for controlling the bending angle and direction of the bending adjusting section is arranged at the near end of the guide tube. According to the transjugular vein intrahepatic puncture device, adjustment of the far end of the guide tube in different directions and angles can be achieved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a transjugular intrahepatic puncture device. Background technique [0002] Transjugular intrahepatic portal vein stent shunt, under the guidance of intervention, do local infiltration anesthesia in the neck, puncture through the right jugular vein, use catheter guide wire and puncture needle to open the hepatic vein and portal vein channel; The treatment of portal hypertension is one of the interventional methods for esophagogastric varices. [0003] When performing transjugular intrahepatic portal vein stent shunt, the puncture kit used is RUPS-100; because during the puncture process, the guide direction and angle of the head end need to be continuously adjusted to adapt to the direction of the branch blood vessels during the puncture process. and angle. In the prior art, when performing transjugular intrahepatic portal vein stent shunting, the structure for adjusting...

AI Technical Summary

Problems solved by technology

[0005] Although the above prior art realizes the bending adjustment of the angle of the head end, it is difficult to operate when adjusting the angle, and the problem of angle rebound is not solved, the adjustment angle is single, and it cannot be operated at any angle

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