Objective. To assess the safety and efficacy of cervical disc arthroplasty using a new arthroplasty device at 24-months follow-up.

目的：通过24个月的随访，评估使用新型关节成形术设备的颈间盘成形术的安全性与有效性。

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The new and practical drop-proof device plays the function of ensuring safety of the scaffold in the course of lifting up and down.

实用新型的防下坠装置在架体升降过程中起到保证安全的作用。

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The safety device can make up the insufficiency of the aging problem of structural silicone adhesive and eliminate the existing safety hazards of the glass curtain wall with a concealed frame.

这种安全保险装置，可以弥补结构硅酮胶存在老化问题的不足，消除隐框玻璃幕墙所存在的安全隐患。

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SpareOne, designed to be an ultimate safety and communication device, provides up to 15 years of battery life when stored unused (off, with plastic tab inserted) or 10 hours of talk time when in use.

ENGADGET: SpareOnePlus adds location tracking, audio alerts, keeps the 15-year life on a single AA battery eyes-on