Novel interspinous fixing sleeve piece and usage method thereof

Abstract

The invention relates to a novel interspinous fixing sleeve piece and a usage method thereof. The novel interspinous fixing sleeve piece comprises an interspinous fixing system and a cavity opening tool, wherein the interspinous fixing system comprises an interspinous fixator and a conveyor; the cavity opening tool comprises a passage opening device, a passage tube and a drill bit assembly; the part, close to the far end, of the passage opening device is a far end straight section, a puncturing head is arranged at one end, the middle of the passage opening device is a bent section, and the part close to the near end is a near end straight section; the passage tube is a rigid tube, the part close to the far end is a straight section, the middle part is a bent section, the part close to the near end is a straight section, and the bent section in the middle of the passage tube is similar to the bent section in the middle of the passage opening device in shape; the drill bit assembly comprises a drill bit and a bendable and axially rigid drill shaft, the far end of the drill shaft is fixedly connected with the drill bit, and the drill shaft penetrates through the passage tube to extend out of the far end of the passage tube when the drill shaft is mounted in the passage tube. With the adoption of the novel interspinous fixing sleeve piece and the usage method thereof, minimally invasive unilateral percutaneous puncturing can be realized, operations are relatively simple and rapid, operation wounds are smaller, and the trend for minimally invasive development of non-fusion fixation operations is met.

Description

technical field [0001] The invention belongs to the field of spinal non-fusion medical devices, and in particular relates to a novel interspinous process fixation kit and a use method thereof. Background technique [0002] Lumbar instability is a common clinical disease, and its early changes are often only due to the internal structure disorder of the intervertebral disc or degenerative discogenic low back pain; with the development of the disease, spinal instability and lumbar spinal stenosis will appear, and its treatment methods include Spinal fusion and non-fusion fixation. [0003] Spinal fusion and fixation, such as intervertebral fusion cages, destroy the biomechanical properties of the lumbar segments, resulting in load transfer that does not conform to the original physiological conditions, resulting in stress concentrations that cause degeneration of adjacent segmental intervertebral discs and facet joints . [0004] Non-fusion fixation of the spine refers to a ...

AI Technical Summary

Problems solved by technology

[0005] The above instruments are interspinous process fixators with structures and shapes that can expand and fix the spinous processes. In the surgical methods mentioned in relevant clinical literature, the spinous processes are exposed through open surgery, and then through relevant The instrument fixes the fixer between the spinous processes, the operation process is complicated and greatly increases the risk and pain of the patient

Images