Devices and methods of manufacturing and using the same are provided for treating patients suffering from tendon dysfunction. The system utilizes a single, integrated device to provide all Packet Cable-compliant functionality, including enhanced user privacy, compliance with CALEA, E911 and other mandated services not available in conventional distributed Packet Cable systems. The quick-change coupling includes a gun-side fitting and a tank-side fitting. A first end of the purlin assembly is pivotally coupled to the first frame support, and a second end of the purlin assembly is pivotally coupled to the second frame support.