发明名称 Portable lumbar traction device
摘要 A portable lumbar traction device wherein a variable tension system allows the user to manually manipulate a level of tension using a ratcheting device while undergoing a traction procedure. The invention easily and quickly anchors to a door frame and includes one or more springs to create tension in the device. A belt or harness worn by the user couples to a cable or tether in tension with the spring, and the ratcheting device incrementally increases the tension when actuated by the user until the desired tension level is achieved.
申请公布号 US6994683(B1) 申请公布日期 2006.02.07
申请号 US20040912406 申请日期 2004.08.04
申请人 STARR DAVID 发明人 STARR DAVID
分类号 A61F5/00 主分类号 A61F5/00
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