DEVICES, SYSTEMS AND METHODS FOR MEDICAMENT DELIVERY

• US 20100241075A1
• Filed: 06/04/2010
• Published: 09/23/2010
• Est. Priority Date: 11/22/2004
• Status: Active Grant

• Current Assignee: Kaleo, Inc.
• Original Assignee: Intelliject Incorporated
• Inventors: EDWARDS, Evan Thomas, EDWARDS, Eric Shawn
• Granted Patent: US 8,105,281 B2
• Time in Patent Office: Days
• US Class Current: 604/141
• CPC Class Codes: A61M 2005/2013 triggering of discharging means by contact of injector with patient body
• CPC Class Codes: A61M 2005/206 With automatic needle insertion
• CPC Class Codes: A61M 2005/2073 preventing premature release, e.g. by making use of a safety lock
• CPC Class Codes: A61M 2005/31508 provided on the piston-rod
• CPC Class Codes: A61M 2205/583 by visual feedback
• CPC Class Codes: A61M 2205/584 having a color code
• CPC Class Codes: A61M 2205/8218 Gas operated
• CPC Class Codes: A61M 5/19 having more than one chamber , e.g. including a manifold coupling two parallelly aligned syringes through separate channels to a common discharge assembly surgical glue applicators A61B17/00491
• CPC Class Codes: A61M 5/2033 Spring-loaded one-shot injectors with or without automatic needle insertion multishot dosing syringes A61M5/31525, needle insertion only A61M5/3287
• CPC Class Codes: A61M 5/2046 Media being expelled from injector by gas generation, e.g. explosive charge
• CPC Class Codes: A61M 5/2053 Media being expelled from injector by pressurised fluid or vacuum for infusion A61M5/145, A61M5/155
• CPC Class Codes: A61M 5/31501 Means for blocking or restricting the movement of the rod or piston A61M5/5013 takes precedence
• CPC Class Codes: A61M 5/326 Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user

Abstract

An apparatus includes a housing, a medicament container, an actuator, and a biasing member. The actuator is configured to move the medicament container within the housing when the actuator is moved from a first configuration to a second configuration. The actuator includes a gas container and a puncturer. When the actuator is in the first configuration, a portion of the puncturer is disposed apart from the gas container. When the actuator is in the second configuration, the portion of the puncturer is disposed within the gas container. The gas container has a longitudinal axis offset from a longitudinal axis of the medicament container. The biasing member is configured to bias the actuator toward the second configuration.

Claims

1. An apparatus, comprising:

a housing;

a medicament container movably disposed within the housing; and

an actuator disposed within the housing, the actuator configured to move the medicament container within the housing when the actuator is moved from a first configuration to a second configuration, the actuator including;

a gas container configured to contain a compressed gas, the gas container having a longitudinal axis offset from a longitudinal axis of the medicament container;

a puncturer, a portion of the puncturer being disposed apart from the gas container when the actuator is in the first configuration, the portion being disposed within the gas container when the actuator is in the second configuration;

an actuation member that moves within the housing to move the actuator from the first configuration to the second configuration; and

a biasing member in contact with the actuation member, the biasing member urging the actuator toward the second configuration.

2. The apparatus of claim 1, wherein the actuation member includes a retention portion configured to engage the housing to limit movement of the actuation member .

3. The apparatus of claim 1, wherein the longitudinal axis of the gas container is parallel to the longitudinal axis of the medicament container.

4. The apparatus of claim 1, wherein the biasing member has a contracted configuration and an expanded configuration, the biasing member configured to move the actuation member from a first position to a second position when the biasing member moves from the contracted configuration to the expanded configuration.

5. The apparatus of claim 1, wherein:

the housing defines a gas chamber adjacent the medicament container; and

the actuator is configured to release a portion of the compressed gas contained in the gas container into the gas chamber when the actuator is in the second configuration.

6. The apparatus of claim 1, wherein the gas container is movably disposed within the housing such that when the actuator moves from the first configuration to the second configuration the gas container is moved within the housing from a first position to a second position.

7. The apparatus of claim 1, wherein:

the gas container is movably disposed within the housing such that when the actuator moves from the first configuration to the second configuration the gas container is moved within the housing from a first position to a second position; and

the biasing member is in contact with the gas container.

8. The apparatus of claim 1, wherein:

the medicament container is configured to move in a first direction substantially parallel to the longitudinal axis of the medicament container; and

the gas container is movably disposed within the housing such that when the actuator moves from the first configuration to the second configuration the gas container is moved in a second direction substantially parallel to the longitudinal axis of the gas container, the second direction substantially parallel to the first direction, the second direction opposite the first direction.