Last Updated: August 9, 2026

Claims for Patent: 11,369,736

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Summary for Patent: 11,369,736

Title:	Cannula insertion and retraction mechanisms
Abstract:	An insertion mechanism for a wearable drug delivery device that deploys a small gauge flexible cannula with support of a coaxial rigid trocar or hollow needle. After insertion, the trocar or hollow needle is withdrawn leaving the cannula in place for drug delivery. The insertion mechanism may also include an insertion mechanism housing having a proximal and distal end, a manifold configured to fluidly connect the hollow interior of the cannula and the fluid pathway connector, and a manifold guide carrying the manifold and movable between a first position and a second position. A hub carries the trocar and is removably connected to the manifold guide. An insertion biasing member may be initially retained in an energized state between the proximal end of the insertion mechanism housing and the hub, and a retraction biasing member may be initially retained in an energized state between the hub and the manifold guide.
Inventor(s):	Erich Coiner, Paul Faucher, Adam B. McCullough, Antonio Ubach
Assignee:	Amgen Inc
Application Number:	US16/485,245

Details for Patent 11,369,736

Glossary

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Applicant	Tradename	Biologic Ingredient	Dosage Form	BLA	Approval Date	Patent No.	Expiredate
Seqirus Pty Ltd.	AFLURIA, AFLURIA QUADRIVALENT	influenza vaccine	Injection	125254	September 28, 2007	11,369,736	2038-02-13
Seqirus Pty Ltd.	AFLURIA, AFLURIA QUADRIVALENT	influenza vaccine	Injection	125254	August 26, 2016	11,369,736	2038-02-13
Seqirus Pty Ltd.	AFLURIA, AFLURIA QUADRIVALENT	influenza vaccine	Injection	125254	October 04, 2018	11,369,736	2038-02-13
>Applicant	>Tradename	>Biologic Ingredient	>Dosage Form	>BLA	>Approval Date	>Patent No.	>Expiredate

International Patent Family for US Patent 11,369,736

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Country	Patent Number	Estimated Expiration
World Intellectual Property Organization (WIPO)	2018152073	⤷ Start Trial
United States of America	2019365986	⤷ Start Trial
Mexico	2019009755	⤷ Start Trial
Japan	7280189	⤷ Start Trial
>Country	>Patent Number	>Estimated Expiration

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