The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 23, 2025

Filed:

Mar. 28, 2024
Applicant:

Genzyme Corporation, Cambridge, MA (US);

Inventors:

Alexander Hee-Hanson, Melbourn, GB;

Thomas Lever, Melbourn, GB;

Michael Parrott, Melbourn, GB;

Robert Wilson, Melbourn, GB;

Assignee:

Genzyme Corporation, Cambridge, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 5/32 (2006.01); A61M 5/20 (2006.01); A61M 5/24 (2006.01);
U.S. Cl.
CPC ...
A61M 5/2033 (2013.01); A61M 5/2466 (2013.01); A61M 5/326 (2013.01); A61M 5/3272 (2013.01); A61M 2005/206 (2013.01); A61M 2005/2474 (2013.01); A61M 2005/3247 (2013.01); A61M 5/3271 (2013.01);
Abstract

According to a first aspect of this disclosure, there is described an injection device includes: a body; a needle shroud retractable into the body including a shroud pin; a collar rotatable with respect to the body and including a cam track engageable with the shroud pin. The cam track includes: a first portion configured to, during retraction of the needle shroud into the body, guide the shroud pin from an initial position to a hold position and cause the collar to rotate relative to the body; a second portion configured to, during extension of the needle shroud from the body subsequent to the retraction, guide the shroud pin from the hold position to a final position and cause the collar to further rotate relative to the body; and a non-return surface configured to, subsequent to the extension, prevent further retraction of the needle shroud into the body.


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