Medical catheter and medical catheter system

Abstract

The invention relates to a medical catheter and a medical catheter system. The medical catheter comprises a balloon, a catheter body, an electrode assembly and a rotary grinding assembly. The catheter body comprises a catheter tail end and an axially-through catheter channel, the catheter tail end is at least partially contained in the balloon, the catheter tail end is provided with a communicating channel and used for communicating the catheter channel with the balloon, the electrode assembly is arranged at the catheter tail end, located in the balloon and comprises an electrode pair, and the rotary grinding assembly comprises a rotary grinding head and a driving shaft; the rotary grinding head is arranged at the tail end of the driving shaft, and the driving shaft penetrates through the guide pipe channel and is used for driving the rotary grinding head to move; when the medical catheter is in the first state, the far end of the catheter channel is opened and communicated with the outside of the far end, the communication channel is closed, and the rotary grinding head is driven to rotate outside the far end of the catheter channel. And when the medical catheter is in a second working state, the far end of the catheter channel is closed, and the communicating channel is opened, so that the catheter channel is communicated with the balloon. The invention has the advantages that the surgical operation is simplified, and the surgical safety is improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a medical catheter and a medical catheter system. Background technique [0002] Coronary artery calcification is the accumulation of calcium deposits on the aortic valve of the cardiovascular system. In severe cases, the main artery can be narrowed and blood flow reduced, which can cause chest pain or heart attack. At present, most of the medical solutions for the problem of arterial calcification are rotational atherectomy stenting. First, a guide tube is inserted through the femoral artery sheath to the coronary artery, and then the catheter is sent into the atherectomy catheter through the guide tube. After that, the guide is removed. Then insert the special guide wire into the atherectomy catheter, and send the guide wire to the distal end of the coronary artery through the stenosis lesion. After that, push the drill and grinding head of the atherectomy catheter along...

AI Technical Summary

Problems solved by technology

However, when encountering lesions with severe calcification and narrow channels, it is still necessary to use rotational atherectomy to open up a channel for the passage of the balloon, which leads to the need for rotational atherectomy catheters and balloon catheters based on hydroelectric effects, respectively, during the operation. Entering the human body makes the operation more complicated, the patient is exposed for a longer time, and the risk of the operation is higher

Images