Syringe shock absorber for use in an injection device
AssigneeAntares Pharma, Inc.
InventorsJohn Pierre Mehawej, Michael Travanty
Life of this patent
Estimating the term…
Abstract
An injection device, for example, an auto-injector of any type, includes a sleeve configured to hold a medicament chamber. The sleeve has a proximal end and a distal end connected by a middle portion. The sleeve may be sufficiently deformable such that it functions as a shock absorbing member to distribute the force exerted on the medicament chamber during use of the injection device. The sleeve may include a plurality of compressible posts spaced about an axis of the sleeve.
Claims13
A method for delivering a medicament to a subject in need thereof, the method comprising injecting the medicament in the subject using an injector including:
- a shock absorbing member comprising:
- a housing configured to be grasped by a user during an injection;
- a medicament chamber within the housing;
- a needle guard moveable relative to the housing between an extended position and a retracted position;
- a sleeve fixed to the housing and configured to receive the medicament chamber, the sleeve having a proximal end and a distal end connected by a middle portion, the sleeve including a locking projection configured to lock the needle guard in the extended position;
- and
- a cushion at least partially received by the sleeve, the cushion configured to receive a portion of the medicament chamber,
- wherein the sleeve includes a compressible element between the proximal end and the distal end that is deformable,
- wherein the compressible element comprises a plurality of compressible posts spaced about an axis of the sleeve.
A method for delivering a medicament to a subject in need thereof, the method comprising injecting the medicament in the subject using an injector including:
- a shock absorbing member comprising:
- a housing configured to be grasped by a user during an injection;
- a medicament chamber within the housing;
- a needle guard moveable relative to the housing between an extended position and a retracted position;
- a sleeve fixed to the housing and configured to receive the medicament chamber, the sleeve having a proximal end and a distal end connected by a middle portion, the sleeve including a locking projection configured to lock the needle guard in the extended position;
- and
- a cushion at least partially received by the sleeve, the cushion configured to receive a portion of the medicament chamber,
- wherein the sleeve includes a compressible element between the proximal end and the distal end that is deformable,
- wherein the compressible element comprises a plurality of compressible posts spaced about an axis of the sleeve,
- wherein the injector is configured for delivering the medicament at a rate of between about 0.2 mL/sec and about 1.2 mL/sec,
- wherein the needle guard is configured to expose a needle connected to the medicament chamber,
- and
- wherein the medicament comprises an aqueous solution.
Dependencies are inferred from the claim text.