发明名称 Crutch having a changeable armpiece
摘要 A crutch includes a monolithic frame and has at least two different arm-engaging pieces associated therewith. The arm-engaging pieces are releasably attached to the frame by a locking mechanism and one of the pieces is a D-shaped forearm-engaging element and another of the pieces is a U-shaped armpit-engaging element. The arm-engaging pieces include pads in one form of the invention.
申请公布号 US4922941(A) 申请公布日期 1990.05.08
申请号 US19890412343 申请日期 1989.09.26
申请人 DANIELS, CHARLES 发明人 DANIELS, CHARLES
分类号 A61H3/02 主分类号 A61H3/02
代理机构 代理人
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