WO2015020823A1 - Injection aid for use with an injection device and method of use - Google Patents

Injection aid for use with an injection device and method of use Download PDF

Info

Publication number
WO2015020823A1
WO2015020823A1 PCT/US2014/048417 US2014048417W WO2015020823A1 WO 2015020823 A1 WO2015020823 A1 WO 2015020823A1 US 2014048417 W US2014048417 W US 2014048417W WO 2015020823 A1 WO2015020823 A1 WO 2015020823A1
Authority
WO
WIPO (PCT)
Prior art keywords
injection
lever
aid
injection device
needle shield
Prior art date
Application number
PCT/US2014/048417
Other languages
French (fr)
Inventor
Eric Schiller
Prashant Kakade
Hiroo Noguchi
Takuji Harada
Hideo Fukushima
Original Assignee
Bristol-Myers Squibb Comapny
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US14/910,375 priority Critical patent/US10398849B2/en
Priority to PL14750659T priority patent/PL3030284T3/en
Application filed by Bristol-Myers Squibb Comapny filed Critical Bristol-Myers Squibb Comapny
Priority to ES14750659T priority patent/ES2848300T3/en
Priority to JP2016533321A priority patent/JP6371848B2/en
Priority to DK14750659.6T priority patent/DK3030284T3/en
Priority to LTEP14750659.6T priority patent/LT3030284T/en
Priority to AU2014305090A priority patent/AU2014305090B2/en
Priority to BR112016002115-0A priority patent/BR112016002115B1/en
Priority to CN201480044770.4A priority patent/CN105431183B/en
Priority to RS20210264A priority patent/RS61505B1/en
Priority to SI201431757T priority patent/SI3030284T1/en
Priority to EP14750659.6A priority patent/EP3030284B1/en
Publication of WO2015020823A1 publication Critical patent/WO2015020823A1/en
Priority to HK16107582.1A priority patent/HK1219448A1/en
Priority to HRP20210366TT priority patent/HRP20210366T1/en
Priority to CY20211100208T priority patent/CY1124026T1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3202—Devices for protection of the needle before use, e.g. caps
    • A61M5/3204—Needle cap remover, i.e. devices to dislodge protection cover from needle or needle hub, e.g. deshielding devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/28—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3287—Accessories for bringing the needle into the body; Automatic needle insertion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/3129—Syringe barrels
    • A61M5/3137—Specially designed finger grip means, e.g. for easy manipulation of the syringe rod
    • A61M2005/3139—Finger grips not integrally formed with the syringe barrel, e.g. using adapter with finger grips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/58—Means for facilitating use, e.g. by people with impaired vision
    • A61M2205/581—Means for facilitating use, e.g. by people with impaired vision by audible feedback
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/58—Means for facilitating use, e.g. by people with impaired vision
    • A61M2205/583—Means for facilitating use, e.g. by people with impaired vision by visual feedback
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/58—Means for facilitating use, e.g. by people with impaired vision
    • A61M2205/583—Means for facilitating use, e.g. by people with impaired vision by visual feedback
    • A61M2205/584—Means for facilitating use, e.g. by people with impaired vision by visual feedback having a color code

Definitions

  • This disclosure relates generally to injection devices and more particularly to an injection aid for use with an injection device to enhance ease and accuracy of administration of an injection, including self-administration of an injection.
  • a variety of devices for facilitating injection of medicament into a human or animal subject are known in the art.
  • Some current injection devices include a safety device, such as a needle guard, coupled with a syringe to reduce the chances of accidental needle sticks and to facilitate safer disposal of the syringe.
  • a relatively large compressive force is exerted on the plunger of the syringe by the syringe barrel to provide for a tight, leak-proof seal.
  • This quality of the seal, as well as the viscosity of the drug, gauge of the needle, and self-injector's dexterity, can make the movement of the plunger difficult.
  • a user applies three fingers on one hand during the injection process to overcome/exert these forces: the thumb which exerts a force on the plunger rod and the index and middle fingers which hold the barrel or needle guard of the syringe.
  • Barrels and needle guards may include a finger grip or flange to facilitate controlling the rate of movement of the plunger relative to the syringe.
  • the small surface area of the finger grips is not easily handled by a user with low dexterity. Further, the possibility exists that the needle shield (cover) may be pulled at an angle, which may result in the needle bending and/or breaking. There is also difficulty in achieving consistent injection depth, especially in self-injection scenarios.
  • an injection aid for use with an injection device has a needle shield.
  • the injection aid includes a body being configured to receive the injection device, a lever mounted to the body and being configured to rotate about the body, and at least two gears mounted to the body.
  • Each gear has at least one grip, and the grips are configured to apply force along a length of the needle shield.
  • One of the at least two gears is connected to the lever.
  • the grips are further configured to remove the needle shield when the lever is rotated from a fully open position to a fully closed position.
  • an injection aid for use with an injection device includes a body being configured to receive the injection device, and at least two clips mounted to the body.
  • the clips are configured to hold the injection device within the body.
  • the clips are positioned on the body based on a manufacturing tolerance of the injection device.
  • An injection assembly includes a pre-filled syringe having a barrel and a plunger, a needle guard surrounding the barrel of the syringe, the needle guard being movable between a retracted position and an extended position, a housing for the needle guard having a finger flange, a flange extender located around the housing, a needle shield, and an injection aid.
  • the injection aid includes a body being configured to receive the injection device, a lever mounted to the body and being configured to rotate about the body, and at least two gears mounted to the body. Each gear has at least one grip, and the grips are configured to apply force along a length of the needle shield. One of the at least two gears is connected to the lever. The grips are configured to remove the needle shield when the lever is rotated from a fully open position to a fully closed position.
  • a method of using an injection device with an injection aid includes providing an injection device having a needle shield, a plunger, and a flange extender, and providing an injection aid having a body, a lever mounted to the body, and at least two gears mounted to the body. Each gear has at least one grip, and the grips are configured to apply force along a length of the needle shield.
  • the method also includes rotating the lever counterclockwise to a fully open position, placing the injection device within the injection aid, and rotating the lever clockwise to a fully closed position. Rotating the lever causes the gears to rotate, and as the gears rotate the grips of the gears grasp the needle shield along a circumference of the needle shield, and pull down along the length of the needle shield to automatically pull the needle shield off of the needle.
  • Figure 1 is a front view of an injection aid of the present application
  • Figure 2 is a rear view of the injection aid shown in Figure 1;
  • Figure 3 is a perspective view of the lever of the injection aid of Figure 1 shown in the open position;
  • Figure 4 is an exploded view of the injection aid shown in Figure 1;
  • Figure 5 is a second embodiment of an injection aid of the present application.
  • Figure 6 is a perspective view of the injection aid of Figure 1 in use with an injection device and shown in the open position;
  • Figure 7 is a perspective view of the injection aid of Figure 1 in use with an injection device and shown in the closed position;
  • Figures 8 and 9 show the use of the injection aid in self-administration of an injection.
  • An injection aid for use with an injection device such as a safety syringe, for example, is disclosed.
  • the injection aid employs a flexible clip-based design to compensate for manufacturing tolerances associated with the injection device.
  • the injection aid includes a body and a lever mounted to the body. The body positions the injection device so as to ensure consistent injection depth.
  • Figure 1 shows an example injection aid 100 for use with an injection device, such as an injection device 200 (shown in Figures 6-7).
  • the injection device 200 is disposable and used only once in conjunction with the injection aid 100; the injection aid is reusable.
  • the disposable injection device 200 is inserted into the injection aid and locked into place as shown in Figures 6 and 7, and in this condition ( Figure 7) the injection aid 100 facilitates the administration of an injection as shown in Figures 8 and 9.
  • Injection device 200 will be described in more detail below.
  • the injection aid 100 includes a body 102 having an upper end 101 and a lower end 103.
  • the body 102 further includes two sides 105 located between the upper end 101 and lower end 103.
  • a lever 104 is mounted to a side 105 of the body 102.
  • the lever 104 is fixed to the body 102 by legs 107 mounted to the front and back of the injection aid 100.
  • the lever 104 rotates from a fully open position (shown in Figure 6) to a fully closed position (shown in Figure 7).
  • the body 102 may further include a locking feature 106 to lock the lever 104 onto the body 102 when the injection device is properly assembled in the injection aid 100.
  • the locking feature 106 may provide audible feedback to a user to indicate that the lever 104 is in the fully closed and locked position.
  • gears 108, 110 are mounted toward the upper end 101 of the body 102.
  • Gear 110 is connected to the lever 104. Rotation of the lever 104 rotates the gears 108, 110, which in turn removes the needle shield off the injection device, which will be described in more detail below.
  • Two cover parts 112, 114 hold the gears 108, 110 in place, and also prevent ingress of foreign objects into the injection aid 100.
  • the injection aid 100 also includes one or more securing features for holding the injection device 200.
  • a notch 116 is present near the lower end 103 of the body 102 for accommodating the flange and/or flange extender portion of the injection device 200.
  • a clip 118 is mounted to the body 102 to securely hold the injection device 200 in place within the injection aid 100. It should be understood that the clip 118 may be mounted in a different area of the body 102 depending upon the particular manufacturing tolerances of the injection device used with the injection aid. Alternatively or additionally, more than one clip may be present, as shown in Figure 5. Other securing features may be present as well.
  • the injection aid 100 may further include a feature, such as arm 120, which holds the lever 104 in the open position, and thus facilitates the assembly of injection device 200 into the injection aid.
  • a feature such as arm 120
  • Other features that can hold the lever 104 in the open position are possible as well.
  • each gear includes a visual feedback feature, such as an arrow 124, 132 etched onto the gear.
  • the arrows 124, 132 function to notify a user when the lever 104 is in the fully open position by pointing toward each other in the fully open position.
  • the visual feedback feature may include a coloring of a specific section of the gears, and the colors would line up when the lever 104 is in the fully open position.
  • Each gear 108, 110 further includes a shaft 122, 130, and two grips 126, 128 and 134, 136 along the shafts. It should be understood that more or less grips may be included on the shafts. In one embodiment, the grips 126, 128 and 134, 136 may be polygonal-shaped. In another embodiment, the grips 126, 128 and 134, 136 may have a circular shape. The rotation of the gears 108, 110, due to the movement of lever 104, moves the grips 128, 130 up or down the needle shield 208. The opposite grips of the two gears 108, 110 form an octagonal shape. Thus, the two grips on each of the gears together form an octagonal shape. Alternatively, the grips may take other shapes, as long as the grips apply force along the length of the needle shield. The grips 126, 128 and 134, 136 remove the needle shield, as explained in detail below.
  • Figure 5 shows an alternative embodiment of an injection aid 100' having two securing features (clips 119) for holding the injection device 200. Alternatively, more or less securing features could be present.
  • the injection aid 100' is not shown as including the needle cover removal feature, but it should be understood that a needle cover removal feature may be included.
  • FIGS 6-7 show an example injection device 200 having a flange extender 250 for use with the injection aid 100 of the present application.
  • the injection device 200 may include a safety device such as a safety shield or needle guard 202 surrounding a syringe body (not shown).
  • the injection device 200 and needle guard 202 may be in accordance with U.S. Pat. Nos. 6,623,459 and 7,255,689, which are both assigned to Safety Syringes, Inc., and which are incorporated by reference herein in their entireties.
  • the needle guard 202 is movable between a retracted position in which the needle guard does not cover the needle 204 (shown in Figure 6), and an extended position in which the needle guard covers the needle.
  • the injection device 200 further includes a plunger 206. A user can apply a force to the plunger 206 to administer medication contained in the syringe.
  • the injection device 200 further includes a needle shield 208 to cover the needle 204.
  • the needle guard 102 may also include flanges (not shown) which facilitate controlling the rate of movement of the plunger 206 relative to the syringe.
  • the flange extender 250 surrounds opposite sides of the flanges. The flange extender 250 is described in detail in U.S. Pat. Pub. No. 2013/0018325 filed July 11, 2011, entitled "Flange Extender for Use With an Injection Device and Method of Assembly," which is fully incorporated by reference herein.
  • the injection aid 100 may be sanitized before use.
  • a user opens the lever 104 by rotating the lever in a counter-clockwise direction.
  • the arrows 124, 132 on the gears 108, 110 will point toward each other to indicate when the lever 104 has reached the fully open position (180°).
  • the fully open position is shown in Figure 6.
  • the injection device 200 When the lever is fully opened, the injection device 200 is placed into the injection aid body 102.
  • the notch 114 in the body provides directional guidance for the placement of the injection device 200.
  • the clip 118 further secures the device 200 in place.
  • the lever 104 is then closed by rotating the lever 104 in a clockwise direction.
  • the rotating lever causes the two gear parts 108, 110 to rotate.
  • the grips 126, 128 and 134, 136 along the gear shaft rotate as well.
  • the grips are rotating, they grasp the needle shield along its circumference and pull down along the length of the needle shield 208 until the needle shield is automatically pulled off the needle.
  • the octagonal shape of the grips 126, 128 and 134, 136 ensures that the grips have sufficient contact area with the needle shield 208 no matter how the needle shield is rotated along the needle axis. Thus, the grips can pull off the needle shield irrespective of the angular orientation of the needle shield along the needle axis.
  • the lever 104 is closed by rotating the lever 104 completely in the clockwise direction over piece 106 until a soft, audible click is heard.
  • the injection may then be administered by holding or grasping the injection aid 100 with one hand and compressing the plunger 206 with a finger of same hand or another hand, as shown in Figures 8 and 9.
  • the needle 204 should be inserted perpendicularly against the skin. After injection, the needle 204 retracts automatically.
  • the lever 104 is again opened to remove and dispose of the used injection device 200.
  • the injection aid 100 may be cleaned and reused for future injections.
  • the injection aid 100 may be constructed of a plastic, such as Polycarbonate resin, for example. In other embodiments, the injection aid 100 may be constructed of other suitable materials.

Abstract

An injection aid for use with an injection device, such as a safety syringe, for example, is disclosed. The injection aid employs a flexible clip-based design to compensate for manufacturing tolerances associated with the injection device. The injection aid includes a body and a lever mounted to the body, the lever being configured to rotate about the body. The injection aid may further include gears rotate with rotation of the lever, and which function to remove a needle shield from the injection device. The body positions the injection device so as to ensure consistent injection depth.

Description

SPECIFICATION
TITLE
INJECTION AID FOR USE WITH AN INJECTION DEVICE AND
METHOD OF USE
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority to U.S. Provisional Application No. 61/863,229, filed August 7, 2013, which is hereby incorporated by reference in its entirety.
BACKGROUND
A. Field
[0002] This disclosure relates generally to injection devices and more particularly to an injection aid for use with an injection device to enhance ease and accuracy of administration of an injection, including self-administration of an injection.
B. Description of Related Art
[0003] A variety of devices for facilitating injection of medicament into a human or animal subject are known in the art. Some current injection devices include a safety device, such as a needle guard, coupled with a syringe to reduce the chances of accidental needle sticks and to facilitate safer disposal of the syringe.
[0004] A relatively large compressive force is exerted on the plunger of the syringe by the syringe barrel to provide for a tight, leak-proof seal. This quality of the seal, as well as the viscosity of the drug, gauge of the needle, and self-injector's dexterity, can make the movement of the plunger difficult. Typically, a user applies three fingers on one hand during the injection process to overcome/exert these forces: the thumb which exerts a force on the plunger rod and the index and middle fingers which hold the barrel or needle guard of the syringe. Barrels and needle guards may include a finger grip or flange to facilitate controlling the rate of movement of the plunger relative to the syringe. Often, the small surface area of the finger grips is not easily handled by a user with low dexterity. Further, the possibility exists that the needle shield (cover) may be pulled at an angle, which may result in the needle bending and/or breaking. There is also difficulty in achieving consistent injection depth, especially in self-injection scenarios. [0005] Thus, it would be desirable to provide an injection aid to improve patient experience related to self-injection, such that the injection aid ensures adequate and consistent exposed needle length for injection (to target subcutaneous delivery). It would also be desirable to provide an injection aid that provides a comfortable user interface to the patient in terms of handling and injecting, with more surface area for steadier handling. It would further be desirable to provide an injection aid that always removes the needle shield in the axial direction so the needle is less prone to bending or breaking.
SUMMARY
[0006] The following embodiments and aspects thereof are described and illustrated in conjunction with systems, tools and methods which are meant to be exemplary and illustrative, not limiting in scope.
[0007] In one aspect, an injection aid for use with an injection device is described. The injection device has a needle shield. The injection aid includes a body being configured to receive the injection device, a lever mounted to the body and being configured to rotate about the body, and at least two gears mounted to the body. Each gear has at least one grip, and the grips are configured to apply force along a length of the needle shield. One of the at least two gears is connected to the lever. The grips are further configured to remove the needle shield when the lever is rotated from a fully open position to a fully closed position.
[0008] In another aspect, an injection aid for use with an injection device is disclosed. The injection aid includes a body being configured to receive the injection device, and at least two clips mounted to the body. The clips are configured to hold the injection device within the body. The clips are positioned on the body based on a manufacturing tolerance of the injection device.
[0009] In yet another aspect, an injection assembly is disclosed. An injection assembly includes a pre-filled syringe having a barrel and a plunger, a needle guard surrounding the barrel of the syringe, the needle guard being movable between a retracted position and an extended position, a housing for the needle guard having a finger flange, a flange extender located around the housing, a needle shield, and an injection aid. The injection aid includes a body being configured to receive the injection device, a lever mounted to the body and being configured to rotate about the body, and at least two gears mounted to the body. Each gear has at least one grip, and the grips are configured to apply force along a length of the needle shield. One of the at least two gears is connected to the lever. The grips are configured to remove the needle shield when the lever is rotated from a fully open position to a fully closed position.
[0010] In yet another aspect, a method of using an injection device with an injection aid includes providing an injection device having a needle shield, a plunger, and a flange extender, and providing an injection aid having a body, a lever mounted to the body, and at least two gears mounted to the body. Each gear has at least one grip, and the grips are configured to apply force along a length of the needle shield. The method also includes rotating the lever counterclockwise to a fully open position, placing the injection device within the injection aid, and rotating the lever clockwise to a fully closed position. Rotating the lever causes the gears to rotate, and as the gears rotate the grips of the gears grasp the needle shield along a circumference of the needle shield, and pull down along the length of the needle shield to automatically pull the needle shield off of the needle.
[0011] In addition to the exemplary aspects and embodiments described above, further aspects and embodiments will become apparent by reference to the drawings and by study of the following detailed description.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Exemplary embodiments are illustrated in the drawings. It is intended that the embodiments and figures disclosed herein are to be considered illustrative rather than restrictive.
[0013] Figure 1 is a front view of an injection aid of the present application;
[0014] Figure 2 is a rear view of the injection aid shown in Figure 1;
[0015] Figure 3 is a perspective view of the lever of the injection aid of Figure 1 shown in the open position;
[0016] Figure 4 is an exploded view of the injection aid shown in Figure 1;
[0017] Figure 5 is a second embodiment of an injection aid of the present application;
[0018] Figure 6 is a perspective view of the injection aid of Figure 1 in use with an injection device and shown in the open position;
[0019] Figure 7 is a perspective view of the injection aid of Figure 1 in use with an injection device and shown in the closed position;
[0020] Figures 8 and 9 show the use of the injection aid in self-administration of an injection. DETAILED DESCRIPTION
[0021] An injection aid for use with an injection device, such as a safety syringe, for example, is disclosed. The injection aid employs a flexible clip-based design to compensate for manufacturing tolerances associated with the injection device. The injection aid includes a body and a lever mounted to the body. The body positions the injection device so as to ensure consistent injection depth.
[0022] Figure 1 shows an example injection aid 100 for use with an injection device, such as an injection device 200 (shown in Figures 6-7). The injection device 200 is disposable and used only once in conjunction with the injection aid 100; the injection aid is reusable. To that end, the disposable injection device 200 is inserted into the injection aid and locked into place as shown in Figures 6 and 7, and in this condition (Figure 7) the injection aid 100 facilitates the administration of an injection as shown in Figures 8 and 9. Injection device 200 will be described in more detail below.
[0023] The injection aid 100 includes a body 102 having an upper end 101 and a lower end 103. The body 102 further includes two sides 105 located between the upper end 101 and lower end 103. A lever 104 is mounted to a side 105 of the body 102. In one embodiment, the lever 104 is fixed to the body 102 by legs 107 mounted to the front and back of the injection aid 100. However, additional configurations of the lever are possible. The lever 104 rotates from a fully open position (shown in Figure 6) to a fully closed position (shown in Figure 7). Referring to Figure 2, the body 102 may further include a locking feature 106 to lock the lever 104 onto the body 102 when the injection device is properly assembled in the injection aid 100. The locking feature 106 may provide audible feedback to a user to indicate that the lever 104 is in the fully closed and locked position.
[0024] Referring again to Figure 1, two gears 108, 110 are mounted toward the upper end 101 of the body 102. Gear 110 is connected to the lever 104. Rotation of the lever 104 rotates the gears 108, 110, which in turn removes the needle shield off the injection device, which will be described in more detail below. Two cover parts 112, 114 hold the gears 108, 110 in place, and also prevent ingress of foreign objects into the injection aid 100.
[0025] The injection aid 100 also includes one or more securing features for holding the injection device 200. In one embodiment, a notch 116 is present near the lower end 103 of the body 102 for accommodating the flange and/or flange extender portion of the injection device 200. Further, a clip 118 is mounted to the body 102 to securely hold the injection device 200 in place within the injection aid 100. It should be understood that the clip 118 may be mounted in a different area of the body 102 depending upon the particular manufacturing tolerances of the injection device used with the injection aid. Alternatively or additionally, more than one clip may be present, as shown in Figure 5. Other securing features may be present as well.
[0026] Referring to Figure 3, the injection aid 100 may further include a feature, such as arm 120, which holds the lever 104 in the open position, and thus facilitates the assembly of injection device 200 into the injection aid. Other features that can hold the lever 104 in the open position are possible as well.
[0027] Referring now to Figure 4, an exploded view of the injection aid 100 is provided. It can be seen that each gear includes a visual feedback feature, such as an arrow 124, 132 etched onto the gear. The arrows 124, 132 function to notify a user when the lever 104 is in the fully open position by pointing toward each other in the fully open position. In another embodiment, the visual feedback feature may include a coloring of a specific section of the gears, and the colors would line up when the lever 104 is in the fully open position.
[0028] Each gear 108, 110 further includes a shaft 122, 130, and two grips 126, 128 and 134, 136 along the shafts. It should be understood that more or less grips may be included on the shafts. In one embodiment, the grips 126, 128 and 134, 136 may be polygonal-shaped. In another embodiment, the grips 126, 128 and 134, 136 may have a circular shape. The rotation of the gears 108, 110, due to the movement of lever 104, moves the grips 128, 130 up or down the needle shield 208. The opposite grips of the two gears 108, 110 form an octagonal shape. Thus, the two grips on each of the gears together form an octagonal shape. Alternatively, the grips may take other shapes, as long as the grips apply force along the length of the needle shield. The grips 126, 128 and 134, 136 remove the needle shield, as explained in detail below.
[0029] Figure 5 shows an alternative embodiment of an injection aid 100' having two securing features (clips 119) for holding the injection device 200. Alternatively, more or less securing features could be present. The injection aid 100' is not shown as including the needle cover removal feature, but it should be understood that a needle cover removal feature may be included.
[0030] Figures 6-7 show an example injection device 200 having a flange extender 250 for use with the injection aid 100 of the present application. The injection device 200 may include a safety device such as a safety shield or needle guard 202 surrounding a syringe body (not shown). In one example, the injection device 200 and needle guard 202 may be in accordance with U.S. Pat. Nos. 6,623,459 and 7,255,689, which are both assigned to Safety Syringes, Inc., and which are incorporated by reference herein in their entireties. The needle guard 202 is movable between a retracted position in which the needle guard does not cover the needle 204 (shown in Figure 6), and an extended position in which the needle guard covers the needle. The injection device 200 further includes a plunger 206. A user can apply a force to the plunger 206 to administer medication contained in the syringe. The injection device 200 further includes a needle shield 208 to cover the needle 204.
[0031] The needle guard 102 may also include flanges (not shown) which facilitate controlling the rate of movement of the plunger 206 relative to the syringe. The flange extender 250 surrounds opposite sides of the flanges. The flange extender 250 is described in detail in U.S. Pat. Pub. No. 2013/0018325 filed July 11, 2011, entitled "Flange Extender for Use With an Injection Device and Method of Assembly," which is fully incorporated by reference herein.
[0032] In operation, the injection aid 100 may be sanitized before use. Next, a user opens the lever 104 by rotating the lever in a counter-clockwise direction. The arrows 124, 132 on the gears 108, 110 will point toward each other to indicate when the lever 104 has reached the fully open position (180°). The fully open position is shown in Figure 6.
[0033] When the lever is fully opened, the injection device 200 is placed into the injection aid body 102. The notch 114 in the body provides directional guidance for the placement of the injection device 200. The clip 118 further secures the device 200 in place. The lever 104 is then closed by rotating the lever 104 in a clockwise direction. The rotating lever causes the two gear parts 108, 110 to rotate. As the gears rotate, the grips 126, 128 and 134, 136 along the gear shaft rotate as well. As the grips are rotating, they grasp the needle shield along its circumference and pull down along the length of the needle shield 208 until the needle shield is automatically pulled off the needle. The octagonal shape of the grips 126, 128 and 134, 136 ensures that the grips have sufficient contact area with the needle shield 208 no matter how the needle shield is rotated along the needle axis. Thus, the grips can pull off the needle shield irrespective of the angular orientation of the needle shield along the needle axis.
[0034] Once the needle shield 208 is pulled off, the lever 104 is closed by rotating the lever 104 completely in the clockwise direction over piece 106 until a soft, audible click is heard. The injection may then be administered by holding or grasping the injection aid 100 with one hand and compressing the plunger 206 with a finger of same hand or another hand, as shown in Figures 8 and 9. The needle 204 should be inserted perpendicularly against the skin. After injection, the needle 204 retracts automatically. The lever 104 is again opened to remove and dispose of the used injection device 200. The injection aid 100 may be cleaned and reused for future injections.
[0035] The injection aid 100 may be constructed of a plastic, such as Polycarbonate resin, for example. In other embodiments, the injection aid 100 may be constructed of other suitable materials.
[0036] While a number of exemplary aspects and embodiments have been discussed above, those of skill in the art will recognize that still further modifications, permutations, additions and sub-combinations thereof of the features of the disclosed embodiments are still possible. It is therefore intended that the following appended claims and claims hereafter introduced are interpreted to include all such modifications, permutations, additions and subcombinations as are within their true spirit and scope.

Claims

1. An injection aid for use with an injection device, the injection device having a needle shield, the injection aid comprising:
a body being configured to receive the injection device;
a lever mounted to the body, the lever being configured to rotate about the body; and
at least two gears mounted to the body, each gear having at least one grip, the grips being configured to apply force along a length of the needle shield, wherein one of the at least two gears is connected to the lever;
wherein the grips are configured to remove the needle shield when the lever is rotated from a fully open position to a fully closed position.
2. The injection aid of claim 1 further comprising at least one clip for securing the injection device within the body.
3. The injection aid of claim 2 wherein the clip is positioned based on a manufacturing tolerance of the injection device
4. The injection aid of claim 1 wherein the body further comprises a notch for receiving a flange of the injection device.
5. The injection aid of claim 1 wherein the at least one grip has a polygonal shape.
6. The injection aid of claim 1 wherein the at least one grip has a circular shape.
7. The injection aid of claim 1 wherein the two grips on each of the gears together form an octagonal shape.
8. The injection aid of claim 1 wherein the injection device includes a flange extender.
9. The injection aid of claim 1 further comprising a feature located on the body to hold the lever in the open position.
10. The injection aid of claim 1 wherein the at least two gears each include a visual feedback feature to notify a user when the lever is in the fully open position.
11. The injection aid of claim 1 wherein the body further includes a locking feature for locking the lever onto the body in the fully closed position.
12. The injection aid of claim 11 wherein the locking feature provides audible feedback.
13. An injection aid for use with an injection device, the injection aid comprising: a body being configured to receive the injection device; and
at least two clips mounted to the body, the clips being configured to hold the injection device within the body, and wherein the clips are positioned on the body based on a manufacturing tolerance of the injection device.
14. An injection assembly comprising:
a pre-filled syringe having a barrel and a plunger;
a needle guard surrounding the barrel of the syringe, the needle guard being movable between a retracted position and an extended position;
a housing for the needle guard having a finger flange;
a flange extender located around the housing;
a needle shield; and
an injection aid comprising:
a body being configured to receive the injection device;
a lever mounted to the body, the lever being configured to rotate about the body; and
at least two gears mounted to the body, each gear having at least one grip, the grips being configured to apply force along a length of the needle shield, wherein one of the at least two gears is connected to the lever;
wherein the grips are configured to remove the needle shield when the lever is rotated from a fully open position to a fully closed position.
15. The injection assembly of claim 14 wherein the body further comprises a notch for receiving the flange extender of the injection device.
16. The injection aid of claim 14 further comprising at least one clip for securing the injection device within the body.
17. The injection assembly of claim 14 wherein the two grips on each of the gears together form an octagonal shape.
18. A method of using an injection device with an injection aid, the method comprising:
providing an injection device having a needle shield, a plunger, and a flange extender; providing an injection aid having a body, a lever mounted to the body, and at least two gears mounted to the body, each gear having at least one grip, the grips being configured to apply force along a length of the needle shield;
rotating the lever to a fully open position;
placing the injection device within the injection aid; and
rotating the lever to a fully closed position;
wherein rotating the lever causes the gears to rotate, and wherein as the gears rotate the grips of the gears grasp the needle shield along a circumference of the needle shield, and pull down along the length of the needle shield to automatically pull the needle shield off of the needle.
19. The method of claim 18 wherein the angle of the lever with respect to the body in the fully open position is 180°.
20. The method of claim 18 wherein the lever is held in the fully open position by a feature positioned on the body.
21. The method of claim 18 wherein the lever is locked in the fully closed position by a locking feature.
22. The method of claim 18 further comprising:
grasping the injection aid with one hand; compressing the plunger to perform an injection; rotating the lever to the fully open position; and removing the injection device.
PCT/US2014/048417 2013-08-07 2014-07-28 Injection aid for use with an injection device and method of use WO2015020823A1 (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
CN201480044770.4A CN105431183B (en) 2013-08-07 2014-07-28 Injection aid and application method for being used together with injection device
BR112016002115-0A BR112016002115B1 (en) 2013-08-07 2014-07-28 INJECTION AID FOR USE WITH AN INJECTION DEVICE, THE INJECTION DEVICE HAVING A NEEDLE GUARD POSITIONED ON A NEEDLE, INJECTION MOUNT, AND METHOD OF USING AN INJECTION DEVICE WITH AN INJECTION AID
ES14750659T ES2848300T3 (en) 2013-08-07 2014-07-28 Injection aid item for use with an injection device and method of use
PL14750659T PL3030284T3 (en) 2013-08-07 2014-07-28 Injection aid for use with an injection device and method of use
DK14750659.6T DK3030284T3 (en) 2013-08-07 2014-07-28 INJECTION AID FOR USE WITH AN INJECTION DEVICE AND METHOD OF USE
LTEP14750659.6T LT3030284T (en) 2013-08-07 2014-07-28 Injection aid for use with an injection device and method of use
RS20210264A RS61505B1 (en) 2013-08-07 2014-07-28 Injection aid for use with an injection device and method of use
US14/910,375 US10398849B2 (en) 2013-08-07 2014-07-28 Injection aid for use with an injection device and method of use
JP2016533321A JP6371848B2 (en) 2013-08-07 2014-07-28 INJECTION DEVICE AND INJECTION ASSISTANT USED AND METHOD
AU2014305090A AU2014305090B2 (en) 2013-08-07 2014-07-28 Injection aid for use with an injection device and method of use
SI201431757T SI3030284T1 (en) 2013-08-07 2014-07-28 Injection aid for use with an injection device and method of use
EP14750659.6A EP3030284B1 (en) 2013-08-07 2014-07-28 Injection aid for use with an injection device and method of use
HK16107582.1A HK1219448A1 (en) 2013-08-07 2016-06-29 Injection aid for use with an injection device and method of use
HRP20210366TT HRP20210366T1 (en) 2013-08-07 2021-03-03 Injection aid for use with an injection device and method of use
CY20211100208T CY1124026T1 (en) 2013-08-07 2021-03-11 INJECTION AID FOR USE WITH INJECTION DEVICE AND METHOD OF USE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361863229P 2013-08-07 2013-08-07
US61/863,229 2013-08-07

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BR (1) BR112016002115B1 (en)
CY (1) CY1124026T1 (en)
DK (1) DK3030284T3 (en)
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EP3030284A1 (en) 2016-06-15
JP6371848B2 (en) 2018-08-08
RS61505B1 (en) 2021-03-31
PT3030284T (en) 2021-02-05
LT3030284T (en) 2021-02-10
HUE054172T2 (en) 2021-08-30
AU2014305090B2 (en) 2019-03-21
HK1219448A1 (en) 2017-04-07
JP2016528994A (en) 2016-09-23
CY1124026T1 (en) 2022-05-27
BR112016002115B1 (en) 2022-05-03
ES2848300T3 (en) 2021-08-06
BR112016002115A2 (en) 2017-08-22
EP3030284B1 (en) 2020-12-16
CN105431183A (en) 2016-03-23
US20160184531A1 (en) 2016-06-30
AU2014305090A1 (en) 2016-02-11
US10398849B2 (en) 2019-09-03
HRP20210366T1 (en) 2021-04-16
PL3030284T3 (en) 2021-04-06
DK3030284T3 (en) 2021-03-22
SI3030284T1 (en) 2021-03-31
CN105431183B (en) 2019-07-30

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