| 摘要 |
A cervical traction device includes a vest to be worn by a patient with a spine or neck injury, a halo adapted to be secured to the patient's head, support rods interconnecting the halo and the vest, and an expansion member disposed between the halo and the support rods for adjusting the supporting force applied to the halo. The expansion member includes a calibrated scale for measuring and displaying the supporting force so that a balanced supporting force can be applied to the halo.
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