Injection System

Patent metadata

Field	Value
Publication number	US-2018126069-A1
Application number	US-201715822807-A
Country	US
Kind code	A1
Filing date	Nov 27, 2017
Priority date	Jul 6, 2012
Publication date	May 10, 2018
Grant date	—

Abstract

Described is a medicament cartridge comprising a housing having open proximal and distal ends, a first coupling mechanism, and a syringe slidably disposed in the housing. The syringe includes a needle and has a retracted position in which the needle is covered by the housing and an extended position in which the needle is exposed. A delivery device comprises the medicament cartridge, an actuator comprising a plunger, a motor adapted to translate the plunger, a second coupling mechanism adapted to detachably engage the first coupling mechanism, and a control button adapted to actuate the motor. A carrier comprises a first slot for at least partially containing the actuator, a second slot for at least partially containing the medicament cartridge, a user interface adapted to provide at least one a visual signal and an audible signal.

First claim

1 - 15 . (canceled)

16 . A medicament cartridge comprising:
a housing having open proximal and distal ends; a first coupling mechanism; and a syringe slidably disposed in the housing, the syringe including a needle, the syringe being configured to be pushed from a retracted position in which the needle is covered by the housing to an extended position in which the needle is exposed when a plunger is translated in a first axial direction.

17 . The medicament cartridge according to claim 16 , further comprising a retraction spring disposed in the housing and biasing the syringe into the retracted position.

18 . The medicament cartridge according to claim 17 , wherein the retraction spring is configured to be compressed when the syringe is pushed from the retracted position to the extended position.

19 . The medicament cartridge according to claim 17 , wherein the retraction spring is configured to move the syringe from the extended position into the retracted position when a force on the syringe is removed.

20 . The medicament cartridge according to claim 16 , wherein the first coupling mechanism includes a thread, a snap, a latch, a hook or a bayonet coupling.

21 . The medicament cartridge according to claim 16 , further comprising a contact sensor disposed on a contact surface of the housing, the contact sensor adapted to generate a signal when the contact surface is placed on an injection site.

22 . The medicament cartridge according to claim 21 , wherein the contact sensor is configured to communicate the signal to a processing unit to provide user feedback.

23 . The medicament cartridge according to claim 16 , wherein the syringe comprises a stopper configured to be pushed into the syringe when the syringe is in the extended position and the plunger is translated in the first axial direction.

24 . The medicament cartridge according to claim 23 , wherein the syringe contains a medicament, and the stopper is configured to be pushed into the syringe to deliver the medicament from the syringe.

25 . The medicament cartridge according to claim 16 , wherein the first coupling mechanism is configured to detachably engage the housing to an actuator comprising the plunger such that a motor of the actuator is operable to
translate the syringe relative to the housing for needle insertion, and apply a force on a stopper of the syringe for medicament delivery.

26 . The medicament cartridge according to claim 16 , wherein the first coupling mechanism is configured to detachably engage the housing to an actuator to enable operation of a control button of the actuator.

27 . The medicament cartridge according to claim 16 , wherein the first coupling mechanism is configured to cause user feedback to be provided when the first coupling mechanism is detachably engaged to an actuator comprising the plunger.

28 . The medicament cartridge according to claim 16 , further comprising a needle boot covering the needle of the syringe,
wherein the needle boot is configured to be removed from the needle of the syringe when the medicament cartridge is removed from a carrier containing the medicament cartridge.

29 . The medicament cartridge according to claim 28 , wherein the needle boot is configured to cover the needle of the syringe when the medicament cartridge is placed into the carrier.

30 . The medicament cartridge according to claim 16 , wherein the first coupling mechanism is insertable into a case of an actuator comprising the plunger.

31 . The medicament cartridge according to claim 16 , wherein the housing is configured to receive the plunger of the actuator when the first coupling mechanism is engaged to the actuator.

32 . The medicament cartridge according to claim 16 , wherein the first coupling mechanism is disposed on the proximal end of the housing, and a contact surface is disposed on the distal end of the housing.

33 . The medicament cartridge according to claim 16 , wherein the needle is configured to be exposed for needle insertion when the syringe is pushed into the extended position.

34 . The medicament cartridge according to claim 16 , further comprising the plunger.

Assignees

• Sanofi Aventis Deutschland

Inventors

• Henderson Charley
• Cross David
• Jennings Douglas Ivan
• Mcginley Ryan Anthony

Classifications

• A61M5/2033

  Spring-loaded one-shot injectors with or without automatic needle insertion (multishot dosing syringes A61M5/31525, needle insertion only A61M5/3287) · CPC title

• A61M5/44

  having means for cooling or heating the devices or media · CPC title

• A61M2205/583

  by visual feedback · CPC title

• A61M2205/581

  by audible feedback · CPC title

• A61M5/20 Primary

  Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically (A61M5/142 {, A61M5/46} take precedence; {hypodermic projectiles F42B12/54}) · CPC title