Injection device and method of assembly and activation
First Claim
1. A system for delivering a pharmaceutical product from a cartridge, comprising:
- an injector body having a side wall, said side wall having a proximal end portion, a distal end portion, an inner surface and an outer surface, said inner surface of said side wall defining a cavity for receiving at least a portion of a cartridge;
a plunger rod having a proximal end portion and a distal end portion, said plunger rod having a pushing surface for engaging a cartridge positioned within said cavity of said injector body;
one or more retention members disposed on one of said outer surface of said injector body and an outer surface of said plunger rod, the other of said injector body and said plunger rod having one or more receiving members adapted to engage said retention members when said plunger rod is in a first position;
said pushing surface of said plunger rod constructed to move a cartridge positioned within said cavity axially as said plunger rod is moved from said first position to a second position, whereby movement of said plunger rod from said first position to said second position releases said plunger rod from said injector body, and whereby movement of said plunger rod from said first position to said second position simultaneously activates a pharmaceutical cartridge positioned within said cavity; and
,a tamper-evident band having a first portion secured to said injector body and a second portion secured to said plunger rod.
1 Assignment
0 Petitions
Accused Products
Abstract
An injector device for a pharmaceutical cartridge. The injector device includes a body defining a space for receiving a pharmaceutical cartridge. One or more retention members are disposed on the outer surface of the body. The injector device further includes a plunger rod having a connection member constructed for connection to a piston associated with a cartridge. The plunger rod has one or more receiving members. constructed to cooperatively retain the plunger rod on the body in a first position, and to release the plunger rod from the body when the plunger rod is moved to a second position. The plunger rod further includes a surface for engaging a pharmaceutical cartridge positioned within the body of said injector and for moving a pharmaceutical cartridge distally as the plunger rod is moved from its first position to its second position. A tamper evident band is secured to plunger rod and injector body.
41 Citations
18 Claims
-
1. A system for delivering a pharmaceutical product from a cartridge, comprising:
-
an injector body having a side wall, said side wall having a proximal end portion, a distal end portion, an inner surface and an outer surface, said inner surface of said side wall defining a cavity for receiving at least a portion of a cartridge; a plunger rod having a proximal end portion and a distal end portion, said plunger rod having a pushing surface for engaging a cartridge positioned within said cavity of said injector body; one or more retention members disposed on one of said outer surface of said injector body and an outer surface of said plunger rod, the other of said injector body and said plunger rod having one or more receiving members adapted to engage said retention members when said plunger rod is in a first position; said pushing surface of said plunger rod constructed to move a cartridge positioned within said cavity axially as said plunger rod is moved from said first position to a second position, whereby movement of said plunger rod from said first position to said second position releases said plunger rod from said injector body, and whereby movement of said plunger rod from said first position to said second position simultaneously activates a pharmaceutical cartridge positioned within said cavity; and
,a tamper-evident band having a first portion secured to said injector body and a second portion secured to said plunger rod. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A system for delivering a pharmaceutical product from a cartridge, comprising:
-
an injector body having a side wall having a proximal end portion and a distal end portion, said side wall having an inner surface and an outer surface, said inner surface of said side wall defining a cavity for receiving at least a portion of a cartridge; a plunger rod having a proximal end portion and a distal end portion, said plunger rod having a pushing surface for engaging a cartridge positioned within said cavity of said injector body; and
,a retention member disposed on one of said outer surface of said sidewall of said injector body and an outer surface of said plunger rod, the other of said injector body and said plunger rod having a receiving member adapted to engage said retention member, wherein cooperation of said retention member and said receiving member precludes radial and rotational movement of the plunger rod when the plunger rod is connected adjacent the sidewall of the injector body in a first position, and wherein said cooperation of said retention member and said receiving member allows axial movement of said plunger rod with respect to said injector body to a second position in which plunger rod is released from said injector body; wherein said pushing surface of said plunger rod is constructed to move a cartridge positioned within said cavity axially as said plunger rod is moved from said first position to said second position, whereby movement of said plunger rod from said first position to said second position releases said plunger rod from said injector body, and whereby movement of said plunger rod from said first position to said second position simultaneously activates a pharmaceutical cartridge positioned within said cavity. - View Dependent Claims (15, 16, 17)
-
-
18. An injection system for delivering a pharmaceutical product from a cartridge, comprising:
-
an injector body having a side wall, said side wall having a proximal end portion, a distal end portion, an inner surface and an outer surface, said inner surface of said side wall defining a cavity for receiving at least a portion of a cartridge, said injector body being made of a first material; a plunger rod having a proximal end portion and a distal end portion, said plunger rod releasably connected to said injector body in a first position, and said plunger rod being removable from said injector body in a second position, said plunger body being made of a second material, said plunger rod having a pushing surface for engaging a cartridge positioned within said cavity of said injector body, wherein said pushing surface of said plunger is constructed to move a cartridge positioned within said cavity axially as said plunger rod is moved from said first position to said second position, whereby movement of said plunger rod from said first position to said second position releases said plunger rod from said injector body, and whereby movement of said plunger rod from said first position to said second position simultaneously activates a pharmaceutical cartridge positioned within said cavity; and
,a tamper-evident band having a first portion secured to said injector body and a second portion secured to said plunger rod, said tamper-evident band being made of a third material, wherein said first material, said second material and said third material are different materials, and wherein said first material, said second material and said third material preclude chemical and mechanical bonding therebetween said materials.
-
Specification