Appeal No. 97-4459 Page 10 Application No. 08/421,063 and a cylinder chamber 13 having a volume which may be changed by displacing the piston 11, (2) a standard needle 15, and (3) a filtering unit 25 having a housing 26 with an outwardly extending socket 27 for receiving the cone 14 of the syringe cylinder 10 and an oppositely directed cone 28 for mounting the needle 15 thereon. A plate or disc-like filtering member 17 is arranged within the housing 26 so as to be freely movable between a first position in which the filtering member is in abutting engagement with an inner annular shoulder formed in the housing 26 (Figure 5) and an open position in which the filtering member is in abutting engagement with spacer members 29 projecting into the housing from an inner wall part adjacent to the socket 27 (Figure 4). Suzuki discloses a needle assembly for evacuated blood collection tubes or containers. As shown in Figure 15, the needle assembly includes (1) a needle 15, (2) a translucent or transparent resinous cover or support 16, and (3) a rubber cap 18. A hole 14 is made at the middle portion of the needle 15 and a middle hollow portion 17 is provided in the support 16. Suzuki teaches (column 6, lines 16-19) that when the end tipPage: Previous 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 NextLast modified: November 3, 2007