CN207119035U - Supporting arrangement and storage device - Google Patents

Abstract

The utility model discloses a kind of supporting arrangement, for the supporting arrangement to support at least one pen needle assemblies, the pen needle assemblies are used for pen needles conveying device, wherein, the pen needle assemblies include outer cover, needle stand, and there is the needle stand intubation and inner shield, described device to include：Housing, the housing have top wall and side wall, and the top wall has exterior top face, and the exterior top face has：At least one first well portion, the first well portion is receiving pen needle assemblies；And at least one second well portion, the second well portion with diameter be less than the first well portion diameter and the second well portion with size receiving and keep the inner shield；And displacer, the displacer is to from the first well portion discharge outer cover and used needle stand and to discharge the inner shield from the second well portion.A kind of storage device is also disclosed, it is supporting multiple pen needle assemblies.

Description

Supports and Storage

technical field

In general, the present invention relates to a device for use in mounting a pen needle assembly to a pen delivery device. More specifically, the present invention generally relates to a device having a first well to retain a hub and an inner shield, and to retain the hub after use to reduce the risk of accidental needle sticks. The device has a second well to accommodate the inner shield for separating the inner shield from the hub without manual manipulation of the inner shield.

Background technique

Insulin and other injectable drugs are often delivered with drug delivery pens whereby a disposable pen needle hub is attached to the pen to facilitate access to the drug container and allow fluid to be transported from the container through the needle and delivered to the patient.

Various pen needle delivery devices for dispensing substances to patients are known in the art. Delivery devices typically use a disposable hub having a cannula or needle extending from the patient end of the hub for insertion into the patient. The non-patient end of the needle hub is coupled to the pen delivery device for delivering the substance to the patient.

Hub assemblies are typically packaged in a container containing a number of loose hubs. A needle hub is selected from a package and attached to a pen needle delivery device for injecting a patient, and then removed for disposal. The hub package includes a housing enclosing the hub and a removable seal that is peeled from the housing to open the cavity so that the hub can be removed. The needle hub may have a threaded non-patient end that is threaded to the delivery device. The delivery device with the hub attached is then removed from the housing. An inner needle shield is attached to the hub to cover the cannula until the device is ready to be used. The shield is removed to expose the cannula for use to deliver substances to the patient. After use, the hub can be inserted back into the housing to enclose the exposed cannula. The pen delivery device is detached from the hub, leaving the hub in the housing.

Previous devices required the use of two hands to connect and remove the hub to and from the delivery device. During placement back into the housing, the cannula is exposed and presents an increased risk of accidental needle sticks. Manual manipulation of the housing while positioning the spent hub and cannula within the lumen of the housing while maintaining the housing without accidental needle sticks is difficult.

Existing pen needle assemblies are disclosed in U.S. Patent Application Publication No. 2006/0229562 to Marsh et al. and U.S. Patent Application Publication No. 2007/0149924 to R. Marsh, the entire contents of which are incorporated by reference way is incorporated here.

While existing devices are already suitable for the intended use, there is a continuing need in the industry for improved packaging for pen needle hub assemblies.

Utility model content

The utility model relates to a device and a device for accommodating at least one pen type needle seat assembly. In particular, the present invention relates to a package or device for a pen needle assembly that can be used in a manner that reduces the risk of accidental needle sticks.

In one embodiment of the invention, the device is provided with a well for the hub for holding and supporting the hub and cannula while attaching to the pen needle delivery device and storing used Needle holders for easy handling. The device has a recess or well for receiving an inner shield covering the cannula such that the inner shield can be removed from the hub without the operator needing to manipulate the inner shield. The used hub can be inserted back into the well and stored until ready to be disposed of. An ejector mechanism is provided to eject the hub, outer cover and inner shield to a suitable disposal such as a sharps container.

According to another aspect of the invention, the inner shield may be inserted into a well in the device such that the inner shield is retained by a friction fit or an interference fit. The hub and cannula can then be pulled to detach the inner shield while retaining the inner shield in the well without manipulation of the inner shield by the user.

It is an aspect of the present invention to provide a means for receiving and supporting a hub assembly to attach the hub to a delivery device without requiring the user to handle the exposed cannula with the hub exposed. Needle seat. The hub assembly is positioned in the means for receiving and supporting the hub assembly such that the delivery device can be attached to the non-patient end of the hub. The inner needle shield on the needle hub can then be inserted into the well in the means for receiving and supporting the needle hub assembly to hold the inner shield so that the inner shield can be moved without manipulation of the inner shield. Detach from the needle hub. After use, the hub is positioned in the well of the means for receiving and supporting the hub assembly and disconnected from the delivery device, wherein the means for receiving and supporting the hub assembly retains the used headers, housings and inner shields. The hub may be retained in the hub well by a friction fit or an interference fit to enclose the cannula and reduce the risk of accidental needle sticks. An ejector is provided to eject used components from the means for receiving and supporting a needle hub assembly into a disposal container.

The various features of the present invention are obtained substantially by providing an apparatus for a needle pen assembly, wherein the needle pen assembly includes a housing, a needle hub, and an inner shield covering a cannula on the needle hub. The device for a pen needle assembly includes a housing having a top wall and side walls. The top wall has an outer top surface with at least one first well sized to receive a pen needle assembly. A second well is formed in the top wall and has a diameter smaller than that of the first well and dimensions for receiving and retaining the inner shield. The apparatus for a pen needle assembly includes an ejector for ejecting the outer shield and hub from the first well and for ejecting the inner shield from the second well.

In one embodiment, the second well is sized to accommodate the inner shield by a friction fit or an interference fit such that the inner shield can be gripped with sufficient force by inserting the inner shield into the well so that The needle hub, when attached to the pen needle delivery device, can be pulled outward to detach the inner shield, thereby exposing the cannula for delivery of the substance to the patient. After use of the hub and cannula, the hub is inserted into a first well where the hub can be gripped by a friction fit or an interference fit such that the pen needle delivery device is The operator can detach from the hub without manipulating the hub, reducing the risk of accidental needle sticks.

A further feature of the invention is obtained by providing a device comprising a housing having a top wall, wherein the top wall has an outer top surface. The top wall includes a plurality of first wells having a first size and a plurality of second wells having a second size. Each first well houses a needle pen assembly including a housing, a hub with a cannula, and an inner shield coupled to the hub to enclose the cannula. The second well is sized to receive and hold the inner shield. The device also includes an ejector for ejecting the used hub and housing contained in the first well and for ejecting the inner shield contained in the second well.

Features of the present invention are also obtained by the method of coupling the needle hub of the pen needle assembly to the delivery device using the support device. the support device has a top wall comprising a first plurality of wells for receiving a pen needle assembly and a second plurality of wells sized for receiving an inner shield of the pen needle assembly, The support device also has an outer housing for ejecting the hub and pen needle assembly from the first well and an ejector for ejecting the inner shield from the second well. The method includes the step of inserting the coupling end of the delivery device into the first well to engage and couple to the open end of the hub. The delivery device with the hub attached is removed leaving the housing in the first well. The inner shield is inserted into the second well, where the inner shield is held with sufficient force so that the needle hub can be pulled freely and separated from the inner shield to expose the cannula for use in administering the substance delivered to the patient. After use, the hub is inserted into the housing held in the first well and disconnected from the delivery device. The ejector is then actuated to eject the used hub and housing from the first well and the inner shield from the second well for disposal.

The objects, advantages and salient features of the present invention will become apparent from the following detailed description, which describes exemplary embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

The above benefits and other advantages of various embodiments of the present invention will become more apparent from the following detailed description of exemplary embodiments of the present invention and from the accompanying drawings in which:

Figure 1 is an exploded perspective view of the pen needle delivery device in one embodiment, showing the pen needle assembly including the hub, inner shield, and cover;

Figure 2 is a cross-sectional view of the pen needle assembly;

Fig. 3 is a perspective view of a storage device in an embodiment of the present invention;

4 is a bottom perspective view of the storage device of FIG. 3 showing the gripping member;

Figure 5 is a cross-sectional view of the storage device showing the pen needle assembly positioned in the well;

Figure 6 is a cross-sectional view of the device showing the delivery device coupled to the hub;

Figure 7 is a perspective view of the device showing the hub being pulled out of the housing;

Figure 8 is a cross-sectional view of the pen needle delivery device with the inner shield inserted into the well of the device;

Figure 9 is a cross-sectional view of the pen needle delivery device detached from the inner shield;

Figure 10 is a cross-sectional view of a hub inserted into a housing held in a well;

Figure 11 is a cross-sectional view showing the needle hub positioned within the housing after use;

Figure 12 is a cross-sectional view showing the delivery device detached from the used hub; and

Figure 13 is a cross-sectional view showing the ejector in position for ejecting the used hub, outer cover and inner shield from the device.

Throughout the drawings, like reference numerals will be understood to refer to like parts, components and structures.

Detailed ways

The present invention relates to a device for storing and supporting at least one, preferably a plurality of pen needle assemblies for use with a pen delivery device. The invention also relates to a storage device for used needle hubs, wherein, without handling the needle hubs, the used needle hubs can be replaced in the device after use and subsequently discarded to reduce accidental needle thorn risk.

A device for a needle hub assembly may facilitate and ease assembly and removal of a needle hub on a pen delivery device with reduced operationally exposed needle cannula. The device for the needle hub assembly can be placed on a flat surface, such as a table, so that the pen needle delivery device can be attached to the needle hub assembly with one hand, reducing the risk of handling with exposed needle hubs. Needle stick risk due to the needle seat of the tube.

The pen needle delivery device 10 as shown in Figure 1 typically includes a dose knob/button, an outer sleeve 12 and a cap. The dose knob/button allows the user to set the dose of drug to be injected. When injecting medicine, the outer sleeve 12 is held by the user. The cap is used by the user to securely hold the pen injector device 10 in a shirt pocket, purse or other suitable location and provide cover/protection from accidental needle stick injuries.

In a standard pen needle delivery device, both the dosing mechanism and the delivery mechanism reside within the outer sleeve 12 and are not described in more detail here, as they will be understood by those skilled in the art. The cartridge is typically attached to a standard pen injector housing via known attachment means. Distal movement of the plunger or stopper within the cartridge forces the drug into the reservoir housing. The cartridge is sealed by a septum and pierced by a septum-piercing needle cannula located within the reservoir or housing. The reservoir housing is preferably screwed onto the cartridge, although other means of attachment may also be used. The pen needle delivery device may be a standard pen delivery device known in the industry, therefore the pen needle delivery device is not shown in detail. The pen needle assembly 18 shown in FIG. 2 includes a hub 16 supporting a cannula 20 , an outer cover 22 and an inner shield 24 . As shown in Figure 2, a protective seal 26 is attached to the open end of the housing to enclose the hub and cannula, thereby maintaining a clean and sterile environment. The seal may be a label or other closure member that can be easily peeled off the housing to gain access to the hub during use.

The pen needle delivery device 10 is connected to a needle hub 16, as shown in FIG. internal thread. A needle cannula 20 extends from the patient end of hub 16 for delivering a substance to the patient. A housing 22 may be provided to cover the needle cannula to protect the patient from accidental needle sticks before and after use. An inner shield 24 is provided on a post extending from the patient end of hub 16 to enclose the cannula. During use, hub 16 is connected to the pen delivery device and the inner shield is removed. After use, the cover is generally put back on the hub to cover the needle cannula. The needle hub with cover is then removed from the pen needle delivery device and discarded.

The device of the present invention is configured to receive and support at least one pen needle assembly in a position where a delivery device can be coupled to a needle hub for injecting a substance into a patient without requiring the user to have Expose the hub of the cannula for manipulation. The used hub and cannula can then be positioned back into the housing that remains in the device and is separate from the delivery device. The used housing and header and inner shield remain in the device. Without manipulating parts, the device can then be inverted and the ejector actuated to eject the used housing, hub and inner shield for safe disposal.

Referring to FIGS. 3 to 5 , the support device 30 of the present invention includes a housing 32 having side walls 34 , a top wall 36 , an open bottom end 38 and a housing received in the open bottom end 38 . The ejector 40. The top wall 36 has an outer top surface 42 with at least one, preferably a plurality of recesses forming a well for the pen needle assembly. In the illustrated embodiment, the top wall 36 has a plurality of first wells 44 spaced apart from each other and facing outwardly from the top surface 42 . Each well 44 is sized to receive and support a pen needle assembly, as shown in FIG. 5 . A plurality of second wells 46 are also disposed in the top wall 36 and spaced apart from the first wells 44 . The second well 46 is sized to receive and support the inner shield 24 .

In the illustrated and described embodiment, wells 44 and 46 are formed in top wall 36 . In other embodiments, the well may be provided in a side wall or other location accessible to the user. Providing the well in the top wall has the advantage that the delivery device can be pushed in a downward direction to prevent movement of the device when placed on a stable surface or support.

As shown in FIG. 5 , the depth and width of the well 44 for the pen needle assembly are complementary to the corresponding dimensions of the pen needle assembly 18 . Well 44 has a first generally cylindrical upper portion 48 having a diameter sufficient to accommodate pen needle assembly 18 and threaded engagement end 14 of delivery device 10 . The second cylindrical portion 50 is spaced below and spaced from the first portion 48 and from the top wall 36 . Portion 50 has a diameter smaller than that of first portion 48, and step 52 extends between first portion 48 and second portion 50 to match a shoulder on the delivery device. The step 52 is spaced from the top wall 36 at a distance such that the outer flange 54 of the hub 16 is recessed below the top face 42 . The step 52 forms a stop for the housing 22 of the pen needle assembly and the delivery device.

A tapered portion 54 extends from the bottom end of the second portion 50 , converging toward a lower portion 56 . As shown in the figures, the lower portion 56 has an open bottom end 58 . The lower portion 58 has a shape that is complementary to the end of the housing 22. In the illustrated embodiment, the lower portion 56 has a slightly tapered or tapered shape, which corresponds to the tapered shape of the end of the housing. The first well 44 defined by the various sections has a shape and dimensions that are complementary to those of the pen needle assembly such that the pen needle assembly can fit within the well 44 .

In one embodiment shown in FIG. 3, a plurality of teeth 60 protrude inwardly from the bottom end of the second portion 50 so as to facilitate the ribs or depressions formed in the outer surface of the housing 22 shown in FIG. part match. Each tooth 60 is oriented for engagement with the housing to prevent rotational movement of the housing 22 relative to the housing 32 when the needle hub 16 is engaged and disengaged from the engagement end of the delivery device. Well 44 is sized to retain housing 22 by means of a friction fit or by means of an interference fit. In other embodiments, gripping features may be provided for gripping the housing 22 . In one embodiment, the gripping mechanism may be an O-ring received in an annular recess in the well 44 to engage the outer surface of the housing 22 .

In the illustrated embodiment, a plurality of first wells 44 are formed in the top wall 36 for receiving a plurality of pen needle assemblies. The respective first wells 44 may be arranged in an appropriate pattern as required. In the illustrated embodiment, each first well 44 is arranged in a generally annular pattern surrounding the outer edge of the top wall 36 .

The second well 46 is shaped and sized to accommodate the inner shield 24 when it is separated from the hub 16 . As shown in FIG. 5 , the well portion 46 has a first generally cylindrical portion 62 extending from the top face 42 and having a diameter complementary to the engagement end 14 such that only the engagement end 14 can be inserted into the well. Section 46. The first portion 62 has an axial length corresponding to the axial length of the engagement end 14 . A step 64 extends radially inwardly from the bottom end of the first portion 62 to a generally cylindrical lower portion 66 . The lower portion 66 extends in a radial direction from the step 64 to an open bottom end 68 . The lower portion 66 has a diameter corresponding to the outer diameter of the inner shield 24 . In one embodiment, the diameter of the lower portion 66 forms a friction fit with the inner shield 24 to grip the inner shield 24 so that the inner shield 24 can be separated from the posts of the hub 16 .

The ejector 40 is mounted within the open bottom end 38 of the housing 32 for sliding movement relative to the housing 32 in an axial direction. In the illustrated embodiment, the ejector 40 is biased away from the top wall 36 by a spring member 70 that extends between the top wall 36 and the ejector 40. The ejector 40 is formed from a bottom plate 72 having an outer diameter to fit within the open bottom 38 and to slide within the housing 32 . The housing 32 includes guide posts 74 extending to the bottom end of the housing 32 in the axial direction. The bottom plate 72 has openings 74 which receive guide posts 76 for sliding movement relative to the housing 32 . Only a member 78 is provided on each guide post 76 to retain the bottom plate 72 in the cavity of the housing 32 while still allowing sliding movement of the bottom plate 72 .

The housing 32 has a flange 80 extending radially inwardly from the side walls 34 to the axial center of the housing 32 and positioned between the top and bottom ends of the side walls. An axially extending inner wall 82 extends in an upward direction to the top wall 36 and is radially spaced from and parallel to the side walls 34 . Flange 80 includes an aperture 84 that aligns with and receives a plunger 86 extending from bottom plate 72 . As shown in FIG. 6 , plunger 86 is aligned with open bottom end 58 of first well 44 for sliding movement within first well 44 following sliding movement of ejector 40 . The flange 80 includes an aperture 104 that is aligned with each well 44. One plunger 86 is provided on the bottom plate 72 for each well 44 .

The ejector 40 includes a central post 88 extending upwardly from the bottom plate 72 towards the top wall 36 to support the plate 90 . The plate 90 has a generally planar configuration with outer dimensions corresponding to the inner dimensions of the inner wall 82 so as to slide axially within the cavity of the inner wall 82 . A lower sleeve 92 extends from the bottom face of the plate 90 for engagement with the center post 88 and an upper sleeve 94 for cooperation with the spring 70 . A plunger 96 extends from the upper face of the plate 90 and is aligned with the open bottom end 68 of the second well 46 for sliding movement through the well 50 . Each second well 46 is provided with a corresponding plunger 96 . 5, spring 70 biases ejector 40 away from top wall 36 so that plunger 86 and plunger 96 are in the retracted position so that the various elements of the pen needle assembly can be inserted into their respective In the well department. The ejector can be manually pushed up so that plunger 86 and plunger 96 are in the second position as shown in Figure 13 to eject the individual elements from the respective wells.

The bottom surface of the device 30 may include a non-slip surface or friction member to prevent sliding when placed on a surface, such as the top surface of a table. In this embodiment shown, the bottom face of the bottom plate 72 is provided with non-slip pads 100 and suction cups 102 to stabilize the device on a support surface during use. In other embodiments, the bottom edge of the side wall 34 of the housing may be provided with a suitable non-slip surface or member.

The support device 30 of the present invention is used to enable the pen needle assembly to engage and disengage the needle hub in a manner that reduces accidental sticks by avoiding the use of This is achieved by the need for manipulation of needle hubs with exposed cannula. The device also provides a convenient method for storing used needle hubs and for disposing of used needle hubs in a safe manner.

The device of the present invention is suitable for use in a method of engaging and disengaging a delivery device with a needle hub after an injection in a manner that reduces exposure of the cannula to the user, and disposing of the used needle hub . In use, the seal 26 is removed from the pen needle assembly 18, and the pen needle assembly 1 is positioned in the selected well 44 so that the assembly is located below the top surface 42 of the device 30, as shown in FIG. Show. The delivery device 10 (eg, a conventional pen needle delivery device) is inserted into the well 42 as shown in FIG. 6 . Teeth 60 engage the outer surface of housing 22 to enable engagement end 14 of delivery device 10 to engage hub 16 . In the illustrated embodiment, engagement end 14 has external threads for mating with internal threads on the inner surface of hub 16, as is known in the art. The delivery device 10 can be turned within the well 44 to screw the engagement end 18 into the hub 6 . Then, with the inner shield 24 attached to the end of the hub 16, the delivery device 10 with the hub 16 is withdrawn from the well 44 while the outer cover 22 remains trapped in the well 44 , as shown in Figure 7.

Referring to FIG. 8 , delivery device 10 with hub 16 and inner shield 24 is inserted into well 46 such that inner shield 24 is located in second portion 66 of well 46 . The second portion 66 of the well 44 has dimensions or other gripping mechanisms to grip the inner shield 24 so that the delivery device can be withdrawn, leaving the inner shield 24 in the well 46, as shown in FIG. In this way, the hub can be engaged to the delivery device with limited manipulation of the hub without the need to manually remove the outer cover and inner shield in order to expose the cannula. The delivery device shown in FIG. 9 with an exposed cannula is ready for use so that a substance can be injected into a patient.

After use, the used hub 16 can be placed back into the housing 22 without the user needing to manipulate the housing or hub. Referring to FIGS. 10 and 11 , the used hub 16 , when attached to the delivery device 10 , is inserted into the first well 44 . As shown in FIG. 11 , the hub 16 is inserted back into the housing 22 at which point the delivery device can be rotated to unscrew the engagement end 14 from the hub 16 . Then, as shown in Figure 12, the delivery device 10 can be removed for another use.

The support device 30 of the present invention is capable of holding several used needle hubs 16 and corresponding inner shields 24 in corresponding wells to reduce the risk of accidental needle sticks. The used hub 16 and inner shield 24 can be discarded by inverting the device 10 as shown in FIG. 13 . The ejector 40 can be actuated and moved to the position shown in FIG. 13 where the plunger 86 ejects the housing 22 with the used hub 16 and the plunger 96 ejects the inner shield 24 from each into a suitable waste container for used needles and syringes. The spring 70 then biases the ejector 40 back to its original position for reuse.

The various embodiments and various advantages mentioned above are merely illustrative, and are not intended to limit the scope of the present utility model. The descriptions of the various embodiments of the present utility model are only used for illustration, and are not intended to limit the scope of the present utility model. Various modifications, substitutions and changes that are obvious to those skilled in the art should fall within the scope of the present invention.

Claims (14)

1. a kind of supporting arrangement, it is characterised in that the supporting arrangement is supporting at least one pen needle assemblies, the pen type Needle assemblies are used for pen needles conveying device, wherein, the pen needle assemblies include outer cover, needle stand, the needle stand have intubation and Inner shield, described device include：

Housing, the housing have top wall and side wall, and the top wall has exterior top face, the exterior top mask Have：At least one first well portion, the first well portion is receiving pen needle assemblies；And at least one second well portion, it is described Second well portion with diameter be less than the first well portion diameter and the second well portion with size receiving and Keep the inner shield；And

Displacer, the displacer from the first well portion discharging outer cover and used needle stand and to from described Discharge the inner shield in the second well portion.

2. supporting arrangement as claimed in claim 1, it is characterised in that the size that the first well portion has is described to engage The outer cover of pen needle assemblies, to enable the needle stand to be separated with the outer cover.

3. supporting arrangement as claimed in claim 1, it is characterised in that the shape and size that the first well portion has with it is described The shape and size of outer cover are complementary, to use sufficient power to grip the outer cover so that the needle stand can with it is described outer Cover separates and can prevent outer cover in the first well portion from rotating.

4. supporting arrangement as claimed in claim 3, it is characterised in that the first well portion includes flank, the flank orientation Into to be engaged with the complementary recesses on the needle stand, to prevent the needle stand from being rotated relative to the outer cover.

5. supporting arrangement as claimed in claim 1, it is characterised in that the size that the second well portion has is described to engage Inner shield, to enable the needle stand to be separated with the inner shield.

6. supporting arrangement as claimed in claim 5, it is characterised in that the second well portion has inner surface, to by means of Frictional fit and grip the inner shield.

7. supporting arrangement as claimed in claim 1, it is characterised in that the displacer can move to second from first position Position, the displacer include the first plunger and the second plunger, and first plunger with the first well portion to be engaged, institute The second plunger is stated to be engaged with the second well portion, so as to the displacer from the first position to the second place Motion so that the outer cover and used needle stand are discharged from the first well portion and cause the internal shield Part is discharged from the second well portion.

8. supporting arrangement as claimed in claim 1, it is characterised in that the displacer can move to second from first position Position, the displacer include the first plunger and the second plunger, and first plunger with corresponding first well portion being engaged And slided in corresponding first well portion, second plunger with corresponding second well portion being engaged and in institute State and slided in corresponding second well portion, so as to motion of the displacer from the first position to the second place so that Outer cover and used needle stand are discharged from each first well portion and cause the inner shield from each described Second well portion is discharged.

9. a kind of storage device, it is characterised in that the storage device is supporting multiple pen needle assemblies, the pen needles group Part is used for pen needles conveying device, wherein, each pen needle assemblies include outer cover, needle stand, and the needle stand has intubation and inside Shielding part, described device include：

Housing, the housing have top wall and side wall, and the top wall has exterior top face, the exterior top mask Have：Multiple first well portions, the first well portion is receiving pen needle assemblies；And multiple second well portions, the second well portion With diameter be less than the first well portion diameter and the second well portion with size receiving and keep described Inner shield；And

Movable displacer, the movable displacer is discharging outer cover and used needle stand from the first well portion and use To discharge the inner shield from the second well portion.

10. storage device as claimed in claim 9, it is characterised in that the size that the first well portion has is to described Engaged in first well portion and keep the outer cover of the pen needle assemblies, to enable the needle stand to be separated with the outer cover.

11. storage device as claimed in claim 9, it is characterised in that the shape and size and institute that the first well portion has It is complementary to state the shape and size of outer cover, to use sufficient power to grip the outer cover so that the needle stand can with it is described Outer cover separates and can prevent outer cover in the first well portion from rotating.

12. storage device as claimed in claim 11, it is characterised in that the first well portion includes flank, and the flank is determined To into be engaged with the complementary recesses on the needle stand, to prevent the needle stand from being rotated relative to the outer cover.

13. storage device as claimed in claim 9, it is characterised in that the size that the second well portion has is to engage Inner shield is stated, to enable the needle stand to be separated with the inner shield.

14. storage device as claimed in claim 13, it is characterised in that the second well portion has inner surface, to by The inner shield is gripped in frictional fit.