Needle assembly for a prefilled syringe system
First Claim
1. A needle assembly (10;
-
210) for a prefilled injection syringe, comprising;
a needle holder (12;
212) adapted to be secured to a syringe barrel of the injection syringe and a needle (14;
214) secured to the needle holder (12;
212);
a needle sheath (16;
216) having a distal end and a proximal end, releasably connected at its distal end to the needle holder (12;
212) to form a sterile seal, and surrounding and shielding the needle (14;
214);
a needle seal having a distal end and a proximal end (18;
218), located on the needle tip and arranged at least in part in the proximal end of the needle sheath (16;
216), said needle sheath (16;
216) being a tubular member (32;
232); and
a closure element (20;
220) that closes off the proximal end of the needle seal, said closure element (20;
220) being a cap (56;
256) with a cylindrical shell (60;
260) having a distal rim (62;
262);
a closure connection between the closure element (20;
220) and the needle sheath (16;
216), configured as a permanently non-releasable and sterile barrier (54;
254) produced by means of bonding or welding;
whereinthe proximal end of the needle sheath (16;
216) is provided with a ring flange (34;
234) and the distal rim (62;
262) of said cap shell (60;
260) connects to said ring flange (34;
234) of said needle sheath (16;
216) to form the permanently non-releasable and sterile barrier (54;
254) produced by means of bonding or welding.
1 Assignment
0 Petitions
Accused Products
Abstract
A needle assembly (10; 210) for a prefilled injection syringe is described. A needle holder (12; 212) has a needle (14; 214) secured to it and is adapted to be secured to a syringe barrel of the injection syringe. A needle sheath (16; 216) has a distal end forming a releasable sterile seal with the needle holder (12; 212), and surrounds and shields the needle (14; 214). A needle seal (18; 218) surmounts the needle tip and is arranged at least in part in the proximal end of the needle sheath (16; 216) and closed off by a closure element (20; 220). A closure connection between the closure element (20; 220) and the needle sheath (16; 216) is configured as a non-releasable and sterile barrier (54; 254) produced by means of bonding or welding.
440 Citations
18 Claims
-
1. A needle assembly (10;
-
210) for a prefilled injection syringe, comprising;
a needle holder (12;
212) adapted to be secured to a syringe barrel of the injection syringe and a needle (14;
214) secured to the needle holder (12;
212);a needle sheath (16;
216) having a distal end and a proximal end, releasably connected at its distal end to the needle holder (12;
212) to form a sterile seal, and surrounding and shielding the needle (14;
214);a needle seal having a distal end and a proximal end (18;
218), located on the needle tip and arranged at least in part in the proximal end of the needle sheath (16;
216), said needle sheath (16;
216) being a tubular member (32;
232); anda closure element (20;
220) that closes off the proximal end of the needle seal, said closure element (20;
220) being a cap (56;
256) with a cylindrical shell (60;
260) having a distal rim (62;
262);a closure connection between the closure element (20;
220) and the needle sheath (16;
216), configured as a permanently non-releasable and sterile barrier (54;
254) produced by means of bonding or welding;
whereinthe proximal end of the needle sheath (16;
216) is provided with a ring flange (34;
234) and the distal rim (62;
262) of said cap shell (60;
260) connects to said ring flange (34;
234) of said needle sheath (16;
216) to form the permanently non-releasable and sterile barrier (54;
254) produced by means of bonding or welding. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
210) for a prefilled injection syringe, comprising;
Specification