| 摘要 |
<p>A positioning system. (10) for a body comprises a flexible bag (12) of a gas- impermeable material/ including a valve to permit evacuation of the interior thereof, the bag containing a flowable granular material (14) and at least one bolster (16,18,20). The body can be at least part of a human form, such as a patient (24). Systems are generally provided for specific body regions such as the hip or thorax, and for the whole body. The bolster is larger than the grains of the granular material. A size dimension of the bolster is therefore preferably at least 5 times the- size dimension of the granular material, although it sill usually be one or more orders of magnitude larger. Various forms of bolster are possible. A bolster that includes a generally flat section and an upstanding section extending therefrom can be used to locate a shoulder region of the patient in a reproducible yet comfortable form. A bolster that is generally cylindrical in shape can be used to support various areas of a patient such as the neck or knee. The granular material can consist of polystyrene spheres. The bag is preferably of a nylon material; such as a nylon material coated with a polyurethane-based coating.</p> |
