Arm elevator and sling

作者: Gerald Blatt

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摘要: A device for supporting an injured arm in any of several positions including a horizontal, sling position, diagonal position and vertical, elevated position. The comprises flexible, L-shaped envelope, shoulder strap, rear support assembly releasably coupling the strap to forward envelope plurality variable positions. has looped-fabric engaging hooks thereon adjust strap's length. on outside so as engage at desired

参考文章(1)
William C Wermuth, Trough arm-sling or the like. ,(1909)