Reagent injector

An injector for injecting a reagent, the injector comprising:

• an injector body having an upper portion and a lower portion disposed along a longitudinal axis of the injector body, the upper portion defining a top surface of the injector body;
• an injector core received at least partially within the injector body through the upper portion, the injector core comprising an interfacing surface disposed adjacent to the top surface of the injector body and raised with respect to the top surface;
• and
• a cover member disposed on the upper portion of the injector body, the cover member comprising:
• a top wall defining an aperture for receiving the injector core therethrough, the top wall disposed proximal to the top surface of the injector body;
• a side wall extending from the top wall;
• and
• a lip disposed at an end of the side wall, the lip adapted to be attached to a circumferential wall of the injector body through a snap-fit connection, wherein, upon attachment of the lip to the circumferential wall of the injector body, the top wall of the cover member applies a force on the interfacing surface of the injector core to restrict an axial movement of the injector core relative to the injector body along the longitudinal axis, the force being transmitted along a load path that extends from an upper part of the injector core to a lower part of the injector core.

An injector for injecting a reagent, the injector comprising:

• an injector body having an upper portion and a lower portion disposed along a longitudinal axis of the injector body, the upper portion defining a top surface of the injector body and a lock opening;
• an injector core received at least partially within the injector body through the upper portion, the injector core comprising an electrical connector housing received at least partially within the upper portion of the injector body, wherein the electrical connector housing defines an interfacing surface disposed adjacent to the top surface of the injector body and raised with respect to the top surface, the electrical connector housing further comprising a tab received in the lock opening of the injector body to restrict a rotational movement of the injector core relative to the injector body;
• and
• a cover member disposed on the upper portion of the injector body, the cover member comprising:
• a top wall defining an aperture for receiving the injector core therethrough, the top wall disposed proximal to the top surface of the injector body;
• a side wall extending from the top wall;
• and
• a lip disposed at an end of the side wall, the lip adapted to be attached to a circumferential wall of the injector body through a snap-fit connection, wherein, upon attachment of the lip to the circumferential wall of the injector body, the top wall of the cover member presses on the interfacing surface of the electrical connector housing to restrict an axial movement of the injector core relative to the injector body along the longitudinal axis.