| 摘要 |
PURPOSE: A vertebrae neural foramen expander for treating vertebra stenosis without removing bones and tissues is provided to reduce the time and cost requested for the operation and to reduce the time requested for recuperation after operation. CONSTITUTION: The vertebrae neural foramen expander(100) is inserted among spinous processes(20) of vertebra bone for enlarging the interval among the spinous processes(20) to expand neuropores. The vertebrae neural foramen expander(100) comprises: a main body(110) disposed between two adjacent spinous processes for enlarging the gap between them and maintaining the enlarged gap; and an escape preventing member(112,120) for preventing the main body(110) disposed in each gap among the spinous processes from escaping out of the gap. |
