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Needle-free intradermal injection device

A needle-free injection, syringe technology, used in hypodermic injection devices, syringes, auto-injectors, etc.

Active Publication Date: 2014-08-20
PHARMAJET INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another reliability issue concerns the difficulty in efficiently and precisely prefilling needle-free syringes to selected doses without massive waste of injectable fluids, which may be in very limited supplies.

Method used

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  • Needle-free intradermal injection device
  • Needle-free intradermal injection device
  • Needle-free intradermal injection device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0047] Unless otherwise indicated, all numbers expressing quantities of constituents, dimensions, reaction conditions, etc. used in the specification and claims are to be understood as modified in all instances by the term "about".

[0048] In this application and claims, the use of the singular includes the plural unless otherwise specified. Also, the use of "or" means "and / or" unless stated otherwise. Also, the use of the term "comprising" as well as other forms such as "comprising" and "having" is not limiting. Also, terms such as "element" or "section" include both elements and components that comprise only one unit and elements and components that comprise more than one unit, unless stated otherwise.

[0049] figure 1 It is an exploded perspective view of the needle-free injection device 10 . The needle-free injection device 10 includes a power source for injection, specifically a main spring 12 that is compressed to store energy for subsequent release to drive the inj...

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PUM

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Abstract

A needle-free injection device suitable for delivering a therapeutic substance into the intradermal space of a patient. The needle-free injection device includes a main spring which can be compressed using one or more handles attached to the device to place the needle-free injection device into an armed configuration. Device embodiments may optionally include an injector tube and associated apparatus which may be moved relative to other device structures when the injector is pressed against the skin of a patient with sufficient force. The disclosed operational switches and release mechanisms cooperate to prevent injection unless the device is properly positioned for an injection. Needle-free injection systems and methods of operating a needle-free injection device are also disclosed.

Description

[0001] relevant application data [0002] This application claims priority and benefit to US Provisional Patent Application No. 61 / 570,163, filed December 13, 2011, which is hereby incorporated by reference in its entirety. [0003] contractual origin [0004] Certain embodiments disclosed herein were supported by the United States Government. The US Government has certain rights in this invention pursuant to Contract No. 200-2010-37152 between the US Centers for Disease Control and Prevention and The Medical Injector Company (PharmaJet, Inc). technical field [0005] Embodiments disclosed herein generally relate to needle-free injection devices and methods of injecting serum, drugs, vaccinates, or other injectable fluids into the intradermal space of a human or animal. Background technique [0006] The advantages of needle-free injection devices have been recognized for a long time. Some of the advantages of needle-free devices and methods include the absence of needles,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/30A61M5/315
CPCA61M5/30A61M5/20A61M2005/2013A61M2005/202A61M5/2033A61M2005/2073A61M2005/208
Inventor 克里斯·卡佩洛马特·维克西约翰·W·宾厄姆
Owner PHARMAJET INC