Injection device

Claim 1

AN INJECTION DEVICE COMPRISING, IN COMBINATION, A HOLDER, A READILY DISPOSABLE SKIN PERFORATING MEMBER INCLUDING A THIN SUBSTANTIALLY FLAT DISC HAVING A PLURALITY OF NEEDLE-LIKE PROJECTIONS EXTENDING IN SPACED APART RELATION FROM ONE SIDE OF SAID DISC, SAID NEEDLE-LIKE PROJECTIONS BEING ADAPTED SIMULTANEOUSLY TO PUNCTURE AND PENETRATE THE SKIN TO A DEPTH SUBSTANTIALLY EQUAL TO THEIR LENGTH AND TO INJECT A SUBSTANCE INTO THE BODY, SAID PERFORATING MEMBER BEING DISPOSED WITH THE SIDE OF SAID DISC OPPOSITE SAID FIRST MENTIONED SIDE FACING SAID HOLDER, A COVER FOR SAID PERFORATING MEMBER INTERPOSED BETWEEN SAID HOLDER AND SAID DISC SO AS PHYSICALLY TO ISOLATE SAID HOLDER FROM SAID PERFORATING MEMBER AND TO TEND TO PREVENT CONTAMINATION OF SAID HOLDER BY SUBSTANCES ON SAID PERFORATING MEMBER AND BY BODY FLUIDS RELEASED BY THE PENETRATION OF SAID NEEDLE-LIKE PROJECTIONS INTO THE SKIN, AND MEANS FOR DETACHABLY SECURING SAID PERFORATING MEMBER ON SAID HOLDER WITH SAID COVER THEREBETWEEN, WHERREBY AN INJECTION MAY BE MADE BY GRASPING SAID HOLDER AND PRESSING SAID PROJECTIONS AGAINST THE SKIN, AND THEREAFTER SAID PERFORATING MEMBER AND COVER MAY BE REMOVED FROM SAID HOLDER AND BE REPLACED BY ANOTHER LIKE PERFORATING MEMBER AND COVER PREPARATORY TO MAKING ANOTHER INJECTION.