Spliced type support guide wire and vertebral body expansion balloon catheter

Abstract

The invention discloses a spliced type support guide wire and a vertebral body expansion balloon catheter of the spliced type support guide wire. The spliced type support guide wire comprises a bent guide wire and a sliding guide wire, wherein the bent guide wire and the sliding guide wire are arranged in parallel and tightly clung to each other; the bent guide wire comprises a flexible bent section and a straight section; a sliding guide track is arranged on a side surface of the bent guide wire; the sliding track is parallel to the straight section of the bent guide wire; the sliding guide wire slides on the sliding guide wire; the sliding track is used for constraining the bent guide wire and the sliding guide wire to be kept in a parallel clinging state; the rigidity of the sliding guide wire is greater than that of the flexible bent section; the part where the flexible bent section is tightly clung to the sliding guide wire is in rigid constraint by the sliding guide wire and takes the shape of a straight line; and the part where the flexible bent section is not tightly clung to the sliding guide wire is recovered to be in a bent state. A balloon can be driven to be bent in a vertebral body. The vertebral body expansion balloon catheter comprises a balloon, an outer tube, an inner tube and the spliced type support guide wire.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a spliced ​​support guide wire and a vertebral body expansion balloon catheter. Background technique [0002] Osteoporotic vertebral compression fractures can cause dysfunctional pain that lasts for several months. This pain can cause the patient to lose labor force and exercise capacity. Long-term bed rest will lead to atrophy of limb muscle tissue, bedsores, and aggravation of osteoporosis. And vertebral body compression fractures are often also one of the reasons why many elderly people cannot take care of themselves and lose the ability to live independently. When choosing surgical methods such as open spinal internal fixation, patients may have a higher risk of surgical complications due to their older age, so it is not suitable and difficult to accept this type of surgical treatment. There are currently two main surgical approaches for this condition. [0003] The first is ...

AI Technical Summary

Problems solved by technology

[0004] In clinical practice, PKP generally adopts the method of bilateral percutaneous vertebral balloon expansion. For patients, the trauma will increase and the economic burden will increase. The more cumbersome the operation process, the longer the operation time. , the radiation intake will increase, the health damage will be greater, and the physical strength will be higher

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