| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an indwelling needle set with a connector capable of being easily attached to an outer needle and being prevented from being accidentally detached from the outer needle. <P>SOLUTION: The indwelling needle set A consists of the outer needle 20 comprising a cannula 21 and a housing 22 in which a valve element 25 with an open/close hole 25a is set inside, an inner needle 30 comprising a metal needle 31 and a hub 32, and a connector 40. A guide groove 27 and an engagement hole 28 are bored in the housing 22 to communicate with each other, and the connector 40 has a flexible piece 43a. An engagement projection 43b, which can be engaged with the engagement hole 28 but can not pass through the narrowest part 27a of the guide groove 27, is formed on the outer surface of the flexible piece 43a. In addition, a presser part 45 is disposed on the end face on the outer side of the engagement projection 43b for releasing the engagement of the engagement hole 28 and the engagement projection 43b by pressing the flexible piece 43a on the center axis side of the connector 40 and bending the flexible piece. <P>COPYRIGHT: (C)2007,JPO&INPIT |
