fig1 shows a perspective view of an exemplary embodiment of a needle assembly magazine 1 for storing a plurality of needle assemblies 3 . 1 , 3 . 2 ( exemplary embodiments of which are shown in fig4 and 5 ) according to the present invention . the needle assembly magazine 1 comprises a housing 2 which , in the exemplary embodiment , is an elongated container having a length substantially equal to a sum of diameters of the needle assemblies 3 . 1 and a width substantially equal to a diameter of one of the needle assemblies 3 . 1 . however , those of skill in the art will understand that a shape and size of the housing 2 may vary based on a number of the needle assemblies 3 . 1 , orientation of the needle assemblies 3 . 1 , size of the needle assemblies 3 . 1 , etc . generally , the housing 2 may provide a sterile enclosure for the needle assemblies 3 . 1 and may be manufactured from a material ( e . g ., rubber , plastic , metal ) which will not break or deform when the magazine 1 is transported or dropped . the housing 2 may be comprised of first and second portions connected by a hinge and a lock , and when the first and second portions are coupled together , a cavity 4 may be formed therein . in this exemplary embodiment , after all of the needle assemblies 3 . 1 have been used , the housing 2 may be unlocked and opened ( e . g ., by separating the first and second portions ) and the used needle assemblies may be discarded . unused needle assemblies may then be inserted into the housing 2 , and the housing 2 may be locked ( e . g ., by making the first portion abut the second portion and activating the lock ). in another exemplary embodiment , a door may be provided at an end of the housing 2 for replacing the needle assemblies 3 . 1 . in an exemplary embodiment , the housing 2 may include a first opening 2 . 3 for dispensing an unused needle assembly and a second opening 2 . 4 for depositing a used needle assembly . in the exemplary embodiment , the first opening 2 . 3 is formed at a first terminal end 2 . 1 of the housing 2 , and the second opening 2 . 4 is formed at a second terminal end of the housing 2 . both of the openings 2 . 3 and 2 . 4 may be sized and shaped to receive an injection device ( or a distal portion thereof ), such as a pen injector , an autoinjector , etc . one or more of the openings 2 . 3 and 2 . 4 may be covered by a door , which may be manually moved or automatically moved ( e . g ., via a spring ) to cover / uncover the openings 2 . 3 , 2 . 4 . the first opening 2 . 3 may include a rim portion or guide 8 formed around the first opening 2 . 3 which aligns the injection device relative to the unused needle assembly 3 . 1 . a similar rim portion may be formed around the second opening 2 . 4 to facilitate removal of the used needle assembly . in an exemplary embodiment , the housing 2 and / or the first and second openings 2 . 3 , 2 . 4 may be color - coded with different colors to indicate that the first opening 2 . 3 is for obtaining an unused needle assembly and the second opening 2 . 4 is for discarding a used needle assembly . the housing 2 may also include labels to indicate the use of each of the openings . for example , a label disposed adjacent the first opening 2 . 3 may read , “ new ,” and a label disposed adjacent the second opening 2 . 4 may read , “ used .” fig2 shows an exemplary embodiment of the needle assembly magazine 1 according to the present invention . the needle assemblies 3 . 1 may be maintained in a row due to dimensions of the housing 2 . in another exemplary embodiment , consecutive needle assemblies may be coupled to form a strip or array of needle assemblies . in an exemplary embodiment , a coupling between adjacent needle assemblies could be a plastic connector which fractures when a given needle assembly is being rotated to couple to the injection device or upon removal from the housing 2 . in an exemplary embodiment , a slider 5 may be axially movable within the housing 2 . in use , the slider 5 can separate the unused needle assemblies ( in a first region 4 . 3 ) from the used needle assemblies ( in a second region 4 . 4 ). prior to use , because all of the needle assemblies 3 . 1 in the housing 2 are unused , the slider 5 may be positioned near a second end 4 . 2 of the housing . as needle assemblies 3 . 1 are removed for use and returned after use , the slider 5 may advance ( manually or automatically ) through the housing 2 toward a first end 4 . 1 . in use , the injection device may be inserted into a given needle assembly 3 . 1 aligned with the first opening 2 . 3 . an area of the housing 2 in which the unused needle assembly 3 . 1 is aligned with the first opening 2 . 3 may be referred to as an extraction region 4 . 5 . after the needle assembly 3 . 1 is removed from the housing 2 , the slider 5 may be advanced manually or automatically to align a next unused needle assembly with the first opening 2 . 3 . in an exemplary embodiment , the slider 5 may include a handle 5 . 1 which projects external to the housing 2 ( e . g ., through a slot 2 . 5 formed in the housing 2 ), allowing for manipulation by the user . after a needle assembly 3 . 1 has been removed from the housing 2 , the slider 5 may be advanced via the handle 5 . 1 along a length of the housing 2 to move a subsequent needle assembly 3 . 1 into the extraction region 4 . 5 and to make room in the housing 2 for return of the needle assembly 3 . 1 after use . in another exemplary embodiment , the slider 5 may be advanced through the housing 2 automatically , e . g ., via a spring . when an unused needle assembly 3 . 1 is removed from the housing 2 , the spring force may advance the slider 5 and push the unused needle assemblies toward the first end 4 . 1 of the housing 2 . 1 . an area of the housing 2 in which the used needle assembly 3 . 1 is deposited into the housing 2 via the second opening 2 . 4 may be referred to as an insertion region 4 . 6 . the used needle assembly may be inserted into the housing 2 through the second opening 2 . 4 . a holder 6 may be located within the housing 2 internal to the second opening 2 . 4 to maintain a position of the used needle assembly while it is disconnected from the injection device . for example , the holder 6 may ensure that the used needle assembly does not rotate relative to the injection device . in an exemplary embodiment , the holder 6 may include a pair of arms which at least partially encircle the needle assembly 3 . 1 . the arms may include a textured or frictional surface , or may have a radius of curvature less than a radius of curvature of the needle assembly 3 . 1 , to prevent the needle assembly 3 . 1 from rotating . fig3 shows an exemplary embodiment of the second region 4 . 4 of the needle assembly magazine 1 according to the present invention . when a used needle assembly is inserted into the housing 2 via the second opening 2 . 4 , the holder 6 maintains the used needle assembly is position while it is disconnected from the injection device . after the used needle assembly is disconnected from the injection device , the user may activate a lever 7 which advances the holder 6 toward the first end 4 . 1 . in an exemplary embodiment , the lever 7 projects through a slot 2 . 6 to an exterior of the housing 2 . activation of the lever 7 advances the holder 6 by a distance substantially equal to a width of a needle assembly . as the holder 6 moves toward the first end 4 . 1 , the holder 6 may deflect a hook 9 formed in the housing 2 and which projects into an interior of the housing 2 . the hook 9 may be deflected against an inner surface of the housing 2 to allow the used needle assembly to pass . after the used needle assembly has passed the hook 9 , the hook 9 may resiliently return to its original position . the holder 6 may then return to its starting position ( e . g ., manually or automatically ), and as the holder 6 moves toward the second end 4 . 2 , the hook 9 may separate the used needle assembly from the holder 6 and prevent the used needle assembly from moving back to the insertion region 4 . 6 . thus , the used needle assembly may be maintained in a disposal region 4 . 7 of the housing 2 , between the slider 5 and the insertion region 4 . 6 . the holder 6 may return to its starting position by moving the lever 7 to its starting position , e . g ., via a lever handle 7 . 1 . in another exemplary embodiment , the holder 6 may be returned to its starting position automatically , e . g ., by a tension spring . fig4 and 5 show perspective views a needle assembly 3 . 1 . an outer surface of support 3 . 3 has a cylindrical shape and an open rear end 3 . 6 . a needle 3 . 4 ( which may include a protective cap 3 . 8 ) extends from a distal portion of the support 3 . 3 along a central axis thereof . the support 3 . 3 is designed to be mountable on a distal end of an injection device . for this purpose , an inner screw thread 3 . 7 ( or similar coupling mechanism , such as a bayonet or snap fit ) may be formed adjacent or on the support 3 . 3 to mate with a corresponding screw thread on the distal end of the injection device . in an exemplary embodiment , the inner screw thread 3 . 7 may be formed distal to the support 3 . 3 , and the support 3 . 3 may be utilized of aligned the distal end of the injection device with the needle assembly 3 . 1 for coupling thereto . a seal may be formed within the support 3 . 3 to maintain sterility of the needle assembly 3 . 1 . the seal may have perforated edges such that when the injection device is inserted into the needle assembly 3 . 3 , the seal breaks and the injection device has access to the inner screw thread 3 . 7 and the needle 3 . 4 . the seal may be removed to an area between the support 3 . 3 . and the injection device . the outer surface of the support 3 . 3 may have a ring - shaped corrugated region 3 . 5 . the guide 8 and the holder 6 may have corresponding surfaces designed to abut on the corrugated region 3 . 5 when a needle assembly 3 . 1 is in the extraction region 4 . 5 or the insertion region 4 . 6 , thereby providing friction to mount and unmount a needle assembly 3 . 1 to / from the injection device . in an exemplary embodiment , the needle assembly magazine 1 includes a container formed therein for storing the protective caps 3 . 8 of the needle assemblies 3 . 1 after they are removed from the housing 2 . the container may be a pocket formed in the housing 2 , and the container may be accessible via a slot . such a container may be useful if the user is administering an injection in an area ( e . g ., a camp site ) which does not have ready access to trash receptacles . those of skill in the art will understand that modifications ( additions and / or removals ) of various components of the apparatuses , methods and / or systems and embodiments described herein may be made without departing from the full scope and spirit of the present invention , which encompass such modifications and any and all equivalents thereof .
described is a needle assembly magazine comprising of a housing adapted to contain a plurality of needle assemblies and a slider movably disposed within the housing . the housing has a first opening providing access to an unused needle assembly and a second opening for receiving into the housing a used needle assembly . the slider separates the housing into a first region for unused needle assemblies and a second region for used needle assemblies . movement of the slider advances the unused needle assemblies within the housing toward the first opening .