Vertebral body expansion balloon catheter

Abstract

The invention discloses a vertebral body expansion balloon catheter comprising a balloon, an outer tube, an inner tube and a support guide wire; a near-end of the balloon is fixed on an outer wall of the outer tube; the outer tube is communicated with the balloon and pressurizes for the balloon; the inner tube is installed inside the outer tube in a penetrating mode; the inner tube comprises a straight section and a far-end flexible bending section; the flexible bending section extends out from the outer tube and is fixedly connected with the far-end of the balloon; the support guide wire is slidingly contained inside the inner tube; the flexible bending section is kept straight when the support guide wire is inserted and returns bent when the support guide wire is extracted. The flexible balloon structure can effectively support a vertebral body cavity by expanding the balloon, and vertebral body height can be well restored by inserting one-side balloon conduit. Besides, the continuous control of the degree of curvature of the balloon can be achieved by controlling the degree of extraction of the support guide wire from the flexible bending section and associated control devices.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a balloon catheter for vertebral body expansion. Background technique [0002] Vertebral fractures can lead to dysfunctional pain that lasts for several months. This pain can cause the patient to lose labor and exercise capacity, and can quickly cause loss of limb function, atelectasis and pneumonia, deep vein thrombosis and pulmonary embolism, etc. A fatal complication, vertebral compression fractures were also the cause of many elderly people's inability to take care of themselves and loss of independent living ability in the past. The use of a large amount of drug treatment often causes drug side effects and drug dependence, and most patients do not accept or cannot tolerate surgical treatment. There are currently two main surgical approaches for this condition. [0003] The first is that the clinical full name of vertebroplasty is percutaneous vertebroplasty (PVP). The skin ...

AI Technical Summary

Problems solved by technology

[0004] In practice, PKP generally adopts the method of bilateral balloon expansion, which causes great trauma to the patient, high chance of complications, and increases the economic burden of the patient. more demanding

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