Survival Technology, Inc.

Clarence M Mesa

N Lawrence Dalling

O Napoleon Monroe

Cap for automatic injector

Auto-injector for liquid medicate

A medicament container assembly for an autoinjector having a power assembly actuatable to cause a power stroke in cooperating relation with said medicament container assembly. The medicament container assembly comprises a container having a forward end, a hypodermic needle having a sharpened end, and first and second liquid medicaments. A pair of pistons and a closure assembly are provided for (1) sealingly confining the first liquid medicament and the needle in mutually communicating relation in a forward storage position within the container, (2) sealingly confining the second liquid medicament within the container in a separate rearward storage position, and (3) enabling the power stroke to cause (1) an initial movement of the needle into the injection site during which the sharpened end of the needle moves from a position of entry into the skin to a full depth position, (2) a progressive movement of the first medicament outwardly of the sharpened end of the needle as the sharpened end of the needle moves from the position of entry into the skin into the full depth position so as to inject a predetermined dosage of the first liquid medicament within the injection site in a first pattern surrounding the path of movement of the sharpened end of the needle, and (3) a progressive movement of the second medicament outwardly of the sharpened end of the needle generally after the sharpened end of the needle has reached the full depth position thereof to inject a predetermined dosage of the second liquid medicament within the injection site in a second pattern extending from the sharpened end of the needle.

Dispersion multichamber auto-injector

An automatic injector having a glass container protecting sleeve of thin plastic material assembled in an operative position within the injector housing with respect to the glass medicament container when the stressed spring actuating assembly is in an unreleased condition so as to protect the glass container against fracture (1) due to handling impacts prior to release of the stressed spring assembly and (2) due to the force transmitted to the plunger following the release of the stressed assembly. The sleeve includes a cylindrical portion disposed in engagement with a cylindrical periphery of the glass container when the protective sleeve is in its operative position and an annular flange extending from the rear end of the cylindrical portion disposed in rearwardly adjacent relation to the rear end edge of the glass container when the protective sleeve is in its operative position.

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Rockville, MD, United States of America

Clarence M Mesa