| 摘要 |
THERE IS DISCLOSED AN IV CATHETER INCLUDING:A TUBULAR CATHETER (24); A NEEDLE (16) HAVING A NEEDLE SHAFT AND A TIP, SAID NEEDLE BEING RECEIVED WITHIN SAID TUBULAR CATHETER- (24) WHEN IN A READY POSITION, THE NEEDLE COMPRISING A BULGE (61) IN ITS SHAFT;A CATHETER HUB (26) ATTACHED TO THE PROXIMAL END OF SAID TUBULAR CATHETER (24), SAID CATHETER HUB HAVING A HOLLOW INTERIOR ENCLOSED BY AN INTERIOR WALL (36); SAID NEEDLE BEING MOVABLE FROM SAID READY POSITION IN WHICH SAID TIP IS OUTSIDE OF SAID CATHETER HUB (26) TO A RETRACTED BLOCKING POSITION IN WHICH SAID TIP IS WITHIN THE INTERIOR OF SAID CATHETER HUB (26), A NEEDLE GUARD COMPRISING: A PROXIMAL VERTICAL ARM (54, 106) ENGAGING WITH THE BULGE (61) IN THE SHAFT OF THE NEEDLE TO PREVENT THE REMOVAL OF THE NEEDLE FROM THE NEEDLE GUARD (96, 40); A DISTAL ARM (42, 112) ENGAGED BY SAID NEEDLE SHAFT WHEN SAID NEEDLE IS IN SAID READY POSITION;A SECTION (46) OF A TRANSVERSE SEGMENT (50, 98) OF SAID NEEDLE GUARD (96,40) CONNECTING THE PROXIMAL VERTICAL ARM (54, 106) AND THE DISTAL ARM (42, 112) AND BEING URGED BY SAID NEEDLE SHAFT INTO RETAINING RELATION WITHIN SAID CATHETER HUB (26) WHEN SAID NEEDLE IS IN THE READY POSITION;SAID DISTAL ARM (42, 112) EXTENDING FROM SAID TRANSVERSE SEGMENT (98) AND ENGAGING THE NEEDLE SPACED FROM SAID NEEDLE TIP WHEN SAID NEEDLE IS IN SAID READY POSITION AND MOVABLE WITHIN THE INTERIOR OF SAID CATHETER. HUB TO THE BLOCKING POSITION DISTAL OF SAID NEEDLE TIP WHEN SAID NEEDLE IS IN ITS RETRACTED POSITION; THE ENGAGING OF THE NEEDLE AND THE URGING OF SAID SECTION OF THE TRANSVERSE SEGMENT (50, 98) INTO RETAINING RELATION WITH THE CATHETER HUB IN THE READY POSITION BEING BOTH ACHIEVED BY ENGAGEMENT OF THE DISTAL ARM (42, 112) OF THE NEEDLE GUARD WITH THE NEEDLE SHAFT;
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