| 摘要 |
Orthopaedic traction apparatus of the kind including a support structure carrying guides serving to direct an elongate flexible member between a patient and a suspended weight, the weight applying tractive force to the patient by way of the member, is improved by the provision of a safety mechanism of dynamic seat belt type operably connected between the support structure and the weight. The mechanism is preferably of a form having a belt arresting element operable in response to tilting from a predetermined orientation. Such a mechanism is suitably carried by a lever additionally acted on by the elongate member to maintain the mechanism operable unless the apparatus is mishandled at least in such a way as to release the member from tension. The member is preferably releasably connected to the patient by way of a device additionally allowing separate adjustment of the effective length of the member. Also proposed is the provision of an improved pelvic belt allowing alternate location on the patient for application of tractive force at his sides when supine, or at his front and rear when lying on his side.
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