Title:
【発明の名称】予め充填されている収縮可能な針注射器
Document Type and Number:
Japanese Patent JP2001521409
Kind Code:
A
Abstract:
A pre-filled injection device having a retractable needle (25) with a sharpened tip for penetrating the skin of a patient for administering medicinal fluids is provided. The pre-filled injection device of the present invention allows the needle to be manually retracted, thereby reducing the risk of transmission of various pathogens, most notably human immune virus (HIV), to uninfected personnel, due to an inadvertent prick. The present pre-filled injection device has a hollow housing (7) which receives a pre-filled cartridge (1) containing medicinal fluids. A needle retainer (22) initially holds a needle (25) projecting forward from the hollowing housing (7). The rear end (27) of the needle (25) pierces the pre-filled cartridge (1) when sufficient pressure is applied to the end (27) of the pre-filled cartridge (1) to advance it in the forward direction. A plunger (35) is slidably displaceable within the hollow housing (7). A latch member (72) is operable in a latched position to prevent forward movement of the plunger (35). The latch member is operable in an unlatched position to permit forward movement of the plunger (35) and retract the needle (25) into the hollow housing.
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Inventors:
Botic, Michael, Jay.
Harces, Thor, Earl.
Harces, Thor, Earl.
Application Number:
JP51565098A
Publication Date:
November 06, 2001
Filing Date:
September 03, 1997
Export Citation:
Assignee:
MDC Investment Holdings, Inc.
International Classes:
A61M5/24; A61M5/28; A61M5/32; A61M5/315; A61M5/50; (IPC1-7): A61M5/32; A61M5/28
Attorney, Agent or Firm:
Kazuo Takeshita