Device for self-administration of drugs or the like

A device for subcutaneous self-administration of drugs or the like, including means enabling said device to be carried on body of a patient under treatment, said device being associated with a container to contain fluid to be administered to and by said patient and a remote needle to inject said fluid in said patient, said device comprising

• coupling means including a one way valve system;
• a first flexible tube connecting said coupling means to said container;
• a second flexible tube connecting downstream side of said coupling means to said needle;
• said one way valve system incorporating means preventing back-flow of blood from said patient or administered fluid, and out flow of said fluid back into said container;
• a calibrated syringe including a plunger mounted in a syringe holder on upstream side of said coupling means;
• said syringe holder having means enabling said plunger to withdraw a predetermined portion of fluid from said container and thereafter to inject all said predetermined portion to said patient.