Disposable syringe for the blind

Claim 1

A disposable syringe, particularly for use by the blind or those with greatly impaired vision, the combination of a cylinder for holding on the interior a pre-filled injectable medication and a hypodermic injection needle projecting from one end portion of said cylinder and intercommunicating interiorly with said cylinder, a protecting sheath removably mounted over said needle on said cylinder, a piston in said cylinder having a recess opening towards the other cylinder end portion shaped to receive an end portion of said sheath, said sheath having an end portion operable to fit into said recess for engaging it, said sheath being operative to be removed from said cylinder and to be positioned to engage with its end portion said recess thereby to form a piston rod on said piston, a swab containing a skin disinfectant solution removably mounted on said other end portion on said cylinder, and shielding means covering said swab operable for restraining evaporation of said solution, said swab in said mounted position covering said recess, and when removed uncovering said recess for the engagement in said recess of said sheath.