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Compact auto-injector

  • US 10,265,471 B2
  • Filed: 08/30/2018
  • Issued: 04/23/2019
  • Est. Priority Date: 08/30/2017
  • Status: Active Grant
First Claim
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1. A compact, high aspect ratio auto-injector for delivering a medicament dose subcutaneously or intramuscularly, the auto-injector comprising:

  • a sealed housing rotatably retained in a cover, the sealed housing comprising an interface to receive user input to facilitate a manual rotation of the sealed housing relative to the cover from a first locked position to a second unlocked position;

    a biasing member operable such that when the sealed housing is rotated to the unlocked position, the sealed housing is automatically displaced axially relative to the cover, increasing a height of the auto-injector;

    a medicament dispensing system disposed within the sealed housing and comprising a medicament reservoir adapted to contain the dose; and

    a needle extension mechanism coupled to the medicament reservoir, the needle extension mechanism comprising a curved injection needle adapted to be straightened during deployment of the injection needle to facilitate dispensing of the dose by the auto-injector.

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