Autoinjector
AssigneeSanofi-Aventis Deutschland GmbH
InventorsCharley Henderson, David Cross, Douglas Ivan Jennings, Ryan Anthony McGinley
Life of this patent
Estimating the term…
Abstract
An autoinjector includes a case, a door hingedly coupled to the case and having an open position and a closed position, a plunger slidably disposed in the case, and at least one drive spring applying a biasing force on the plunger relative to the case, wherein the door is operably coupled to the plunger, and wherein rotation of the door from the closed position to the open position moves the plunger from a distal position in the case to a proximal position in the case and compresses the at least one drive spring.
Claims26
An autoinjector comprising:
- a case configured to receive a syringe;
- a slidable member that is movable axially within the case to cause at least a portion of the syringe to move axially when the syringe is disposed within the case for dispensing a medicament through a needle of the syringe;
- a locking member configured to prevent actuation of the slidable member when the autoinjector is in a pre-dispense configuration;
- a sleeve coupled to a distal end of the case and surrounding at least a portion of a needle of the syringe when the syringe is disposed within the case;
- two drive springs coupled to the slidable member and configured to apply a biasing force that acts on the slidable member to move the slidable member distally within the case, wherein the two drive springs are parallel to each other and are parallel to a distal direction;
- a door hingedly coupled to the case and adjustable between an open position and a closed position;
- and
- a linkage that couples the door to the case,
- wherein the linkage is further coupled to at least one of the two drive springs.
A system comprising:
- a syringe containing a medicament;
- and
- an autoinjector comprising:
- a case configured to receive the syringe;
- a slidable member that is movable axially within the case to cause at least a portion of the syringe to move axially when the syringe is disposed within the case for dispensing the medicament through a needle of the syringe;
- a locking member configured to prevent actuation of the slidable member when the autoinjector is in a pre-dispense configuration;
- a sleeve coupled to a distal end of the case and surrounding at least a portion of a needle of the syringe when the syringe is disposed within the case;
- two drive springs coupled to the slidable member and configured to apply a biasing force that acts on the slidable member to move the slidable member distally within the case, wherein the two drive springs are parallel to each other and are parallel to a distal direction;
- a door hingedly coupled to the case and adjustable between an open position and a closed position;
- and
- a linkage that couples the door to the case,
- wherein the linkage is further coupled to at least one of the two drive springs.
Dependencies are inferred from the claim text.