Abstract: An injection device includes a generally tubular outer body and a medicament cartridge assembly carried within the outer body. The cartridge assembly includes a glass container, a charge of medicament disposed within the glass container, iii) a plunger member rearwardly confining the medicament, and iv) a seal for sealing the forward portion of the glass container. A needle has a rearward end disposed proximate the seal, with the seal and needle being movable with respect to one another. A rigid needle cover member is normally maintained in an inoperative position and is movable relative to said body to a protective position wherein the needle cover member extends forwardly to cover the forward end of the needle.

Abstract: An autoinjector converted from an intramuscular to a subcutaneous mode of injection comprising a housing having a medicament cartridge assembly mounted within the housing means in a storage position for movement out of the storage position and a releasable stressed spring assembly for moving the medicament cartridge assembly means out of the storage position. The stressed spring assembly is operable in response to a manual actuating procedure which does not require compression of the subcutaneous tissue to effect an intramuscular mode of injection by moving the hypodermic needle of the cartridge assembly outwardly of the housing into the muscle tissue at the injection site of a user and a major portion of the liquid medicament of the cartridge assembly outwardly through the hypodermic needle into the muscle tissue of the user.

Abstract: A stressed spring assembly for providing an operative stroke in cooperating relation with a medicament cartridge assembly of an auto-injector so as to inject a liquid medicament of the medicament cartridge assembly through a hypodermic needle of the medicament cartridge assembly into an injection site of the user. The stressed spring assembly includes a cap structure serving the plural purposes of (1) facilitating the securement of the cap structure and remainder of the auto-injection with the user's pocket, (2) alleviating the likelihood of an unwanted release of the releasable mechanism of the stressed spring assembly with a resultant unwanted movement of the hypodermic needle and an unwanted movement of the liquid medicament outwardly of the hypodermic needle by requiring two different manual movements for its removal, and (3) protecting against an unwanted contact with the hypodermic needle while in extended operative position after withdrawal from the injection site.

Abstract: An autoinjector particularly suited to be carried on the person of a user comprising a housing defining an exterior configuration of a size and shape approximately the same as that of a conventional fountain pen including a housing body assembly of elongated generally cylindrical configuration and a separate housing cap structure of elongated generally cylindrical configuration having an elongated clip thereon. The housing cap structure is detachably secured to the housing body assembly in open ended telescopic relation with an opposite end portion thereof preferably by a childproof connection. A medicament cartridge assembly is mounted in a storage position within a forward end of an interior chamber within the housing body assembly and a releasable stressed spring assembly is carried by the housing body assembly adjacent the rearward end thereof.

Abstract: An automatic injector apparatus comprising an outer housing assembly, a hypodermic needle, first and second containers, a first liquid medicament ingredient in the first container and a second medicament ingredient in the second container, first and second pistons in the first and second containers respectively, a releasable stressed spring arrangement capable of being released twice, once for movement through a first piston moving stroke and second through a second piston moving stroke, a first releasing device operable in response to a first predetermined actuating procedure for accomplishing a first release of the spring arrangement so as to effect movement of the first piston through a liquid medicament ingredient moving stroke causing the liquid medicament ingredient to mix with the medicament ingredient in the second container to form liquid medicament and a second releasing device operable in response to a second actuating procedure for accomplishing a second release of the spring arrangement so as to

Abstract: A disposable hypodermic syringe having a cylindrical barrel open at both its forward and rearward ends, with the forward tooled end having a necked down portion terminating in an annular flange having an outer diameter greater than that of the necked down portion and less than that of the cylindrical barrel, a stopper positioned in the necked down portion of the cylindrical barrel to seal off the tooled end of the barrel, a resilient plastic needle hub assembly fitted on the forward end of the cylindrical barrel.

Abstract: An automatic injecting device including an elongated housing assembly, a stressed spring assembly mounted within the housing assembly so as to be released in response to a predetermined manual acutation procedure, and a medicament cartridge assembly mounted within the housing assembly in cooperating relation with the stressed spring assembly comprising a hypodermic needle and a medicament container housing forward and rearward individual dosages of different relatively incompatible liquid medicaments mounted therein and separated by a deformable stopper. The medicament container is formed of glass and includes a cylindrical wall open at its rearward end and having an exteriorly flanged necked down forward end portion. A hub assembly connects the exteriorly flanged necked down forward end portion with the hypodermic needle.

Abstract: An automatic injector apparatus comprising an outer housing assembly, a hypodermic needle, first and second containers, a first liquid medicament ingredient in the first container and a second medicament ingredient in the second container, first and second pistons in the first and second containers respectively, a releasable stressed spring arrangement capable of being released twice, once for movement through a first piston moving stroke and second through a second piston moving stroke, a first releasing device operable in response to a first predetermined actuating procedure for accomplishing a first release of the spring arrangement so as to effect movement of the first piston through a liquid medicament ingredient moving stroke causing the liquid medicament ingredient to mix with the medicament ingredient in the second container to form liquid medicament and a second releasing device operable in response to a second actuating procedure for accomplishing a second release of the spring arrangement so as to

Abstract: A split hub assembly for use in conjunction with a cartridge assembly including a cylindrical cartridge tube having a necked down end terminating in an annular flange, the split hub assembly including a needle holder having a forward and a rearward end with a passage connecting the ends. A cylindrical body extends from the rearward end of the needle holder and surrounds a hollow spike extending from the rearward end of the needle holder in communication with the passage in the holder. A pluarlity of flexible segments extend rearwardly from the rearward end of the cylindrical body, each segment having a locking lip extending inwardly from the free end of the segment. The cylindrical body has a first locking portion adjacent the forward end portion of the body and a second locking portion adjacent the forward end portion of the body and a second locking portion adjacent the rearward end of the body.

Abstract: A medicament discharging device and an expendable clip thereon containing a plurality of medicament cartridges. Each of the cartridges comprises a container, a dosage of medicament in the container, a hypodermic needle sealingly contained in a sterile condition in cooperating relation with the container and a movable wall means at one end of the container operable when moved through a discharging stroke to cause the sharpened end of the needle to move outwardly out of sealingly contained relation and into the muscle tissue of a patient and the medicament dosage to move outwardly of the container into the opposite end of the needle and out of the sharpened end thereof into the muscle tissue of the patient.

Abstract: A dual mode automatic injector having a dual mode safety device for preventing the release of the stressed spring assembly except when it is desired to operate the medicament injecting assembly by the stressed spring assembly. The dual mode safety device comprises a first part including a pin portion disposed in a safety position extending through a central aperture in the rear wall of the housing assembly of the injector in release preventing relation with the stressed spring assembly for removal therefrom in response to a relative rearward movement with respect to the rear wall so as to permit an actuating movement to release the stressed spring assembly. The first part includes an automatic removal portion fixed to the rearward end of the pin portion.

Abstract: Apparatus for resuscitating a plurality of patients comprising four face mask assemblies each of which is operable to be operatively connected with a patient so as to permit fresh air to be supplied to the lungs of such patient and four bellows assemblies actuated by a cam track rotated either by a suitable clutched electric motor or by hand crank for delivering successive volumes of fresh air under pressure to each face mask assembly at a desired cyclical frequency wherein each cycle includes said fresh air delivery as a minor part thereof.

Abstract: A plural injection assembly comprising a plurality of separate injections capable of separate actuation and a holder for stably supporting the separate injectors together and for manually facilitating the sequential actuation thereof.