Dilating catheter for shaping valve

Abstract

The invention is suitable for the technical field of medical apparatus and instruments, providing a dilating catheter for shaping a valve. The dilating catheter for shaping the valve comprises a ball bladder, an inner pipe and an outer pipe, wherein the inner pipe and the outer pipe are axially sheathed; the ball bladder, the inner pipe and the outer pipe are respectively provided with a far end and a near end; and the near end of the ball bladder is connected with the far end of the outer pipe, and the far end of the ball bladder is connected with the far end of the inner pipe. The dilating catheter for shaping the valve also comprises a tailstock, wherein the tailstock is arranged on the near end of the outer pipe and can push the inner pipe to axially move so as to drive the ball bladder to extend or shrink, and the tailstock is provided with an injection port communicated with the outer pipe. In the dilating catheter for shaping the valve, a movable tailstock is added on the dilating catheter for shaping the valve so as to push the inner pipe to drive the ball bladder to change the axial and radial sizes of the dilating catheter, so that the dilating catheter has good passing characteristic and copying characteristic, thus the dilating catheter for shaping the valve can be suitable for different crowds and different heart valve surgeries, and intensifies flexibility for using the dilating catheter in surgery, thereby having stronger universality and safer use for the dilating catheter.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and more specifically relates to a valve forming expansion catheter. Background technique [0002] The heart valve is an important organ of the heart. If the valve is inflamed or congenitally hypoplastic or degenerative, the caliber of the valve will be reduced or incomplete, and the blood flow will be blocked or regurgitated when passing through the valve orifice, causing the heart to pump blood. The efficiency is reduced, the load is increased, and in severe cases, it will lead to heart failure and even death. [0003] Heart valves are divided into atrioventricular valves (including mitral valve and tricuspid valve) and semilunar valves (including pulmonary valve and aortic valve). Among the above four valves, the mitral valve is the most commonly affected, followed by the main The arterial valve, again the pulmonary valve. Therefore, these three valves have also become the more commo...

AI Technical Summary

Problems solved by technology

In the prior art, before the operation, the lesion is inspected first, and then the treatment plan is formulated according to the inspection results, so as to select a suitable dilation catheter. Once these dilation catheters are selected, they have a specific outer diameter during the operation. The diameter is uncontrollable. When there is an error in the pre-operative detection, it will cause inappropriate selection of the dilation catheter, which increases the risk of the operation and aggravates the pain of the patient.

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