Repair balloon for treating thrombus and calcification lesions

Abstract

The invention discloses a repair balloon for treating thrombus and calcification lesion, which comprises a balloon body, a cutting piece, a guide tube and a collecting tube, the balloon body is provided with a first connecting section and two ends of the balloon body are opened, the cutting piece extends along the peripheral surface of the balloon body and is partially and fixedly connected with the periphery of the balloon body. The guide tube is communicated with the first connecting section of the balloon body, the converging tube is arranged on the outer surface of the guide tube in a sleeved mode, and the near end of the cutting piece is converged in the converging tube and can slide relative to the converging tube. The repairing balloon is small and ingenious in structure and high in applicability, damage to the blood vessel wall in the operation process can be reduced, the repairing balloon can smoothly pass through a tortuous blood vessel and reach a focus to implement cutting, the operation time is shortened, the use experience of a user is enhanced, the repair balloon for treating thrombus and calcification lesions can be popularized and applied in the technical field of medical instruments.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a repair balloon for treating thrombus and calcified lesions. Background technique [0002] Intervention therapy is an emerging treatment method between surgery and medical treatment, including endovascular intervention and non-endovascular intervention. To put it simply, interventional therapy is to make tiny channels with a diameter of a few millimeters on the blood vessels and skin without exposing the lesion by surgery, or through the original pipeline of the human body, in the imaging equipment such as angiography machine, fluoroscopy machine, CT, MR, etc. Under the guidance of B-ultrasound, it is the least traumatic treatment method to treat the lesion locally. [0003] Currently, cutting balloons used in interventional operations mainly have three structures. One is the cutting balloon, whose structural feature is that a blade is adhered to the surface of the bal...

AI Technical Summary

Problems solved by technology

One is the cutting balloon, whose structural feature is that a blade is adhered to the surface of the balloon every 120°. By filling and expanding the balloon, the blade contacts and tears the hard-to-expand and high-hardness lesions. The stenosis effect is better when there are more proximal vascular fibers, but this kind of cutting balloon has a large external size, which has the problem of poor passability, and it is difficult to pass through complex tortuous blood vessels.

In addition, in order to avoid damage to other blood vessels caused by the cutting balloon during use, the hardness of the existing knife body is generally small, and the blade part is easily deformed; A guide wire is attached to the outer side of the capsule wall, and the guide wire contacts and squeezes the vessel wall by inflating and dilating the balloon, leaving a longitudinal groove and forming a weak part

Its defect is that the guide wire needs to pass through the outer surface of the balloon, and the contact length between the guide wire and the balloon catheter is greatly reduced, which reduces the ability of the balloon catheter to track along the guide wire, and is not suitable for entering severe occlusive lesions; the third is the spinous process balloon, and its design By adding 3 special nylon spinous processes with an interval of 120° from the proximal end to the distal end of the balloon, this kind of balloon is prone to spinous process entanglement when the guide wire or other products pass through the balloon

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