Device for the intermittent pulsatory application of fluid medicaments

A portable apparatus adapted to be worn by a patient user for the intermittent pulsatory application of fluid medicament comprising:

• a disposable reservoir and hose assembly including a flexible reservoir container for medicament, a hose communicating between the reservoir container and a hose pumping portion having its discharge end in fluid communication with a catheter;
• a roller-type pump means including a a head portion rotatable about an axis of rotation and having angularly spaced rollers adapted to act on said hose pumping portion;
• a D.C. motor for driving said pump means;
• control means for controlling said motor including a timer for pulse and pause times;
• battery means for supplying electrical energy to said motor, and an openable housing and a frame cooperating to enclose and mount the pump means, motor, control means, battery means, and reservoir and hose assembly with said catheter extending from said housing for delivery of the medicament to a patient;
• said housing and frame cooperating to provide a recess for receiving said reservoir container and a pair of hose mounts for removably mounting said reservoir and hose assembly;
• a collar fixed to each end of said hose pumping portion;
• each of said collars being adapted to be resiliently biased into engagement with an associated one of said hose mounts with said hose pumping portion extended elastically through said hose mounts and tensioned against said rollers;
• said hose pumping portion, hose mounts and rollers being visible and directly accessible upon opening of said openable housing to enable insertion and removal of said reservoir and hose assembly without further disassembly of said apparatus.