US20110160675A1 - Safety pen needle assembly - Google Patents

Safety pen needle assembly Download PDF

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Publication number
US20110160675A1
US20110160675A1 US13058649 US200913058649A US2011160675A1 US 20110160675 A1 US20110160675 A1 US 20110160675A1 US 13058649 US13058649 US 13058649 US 200913058649 A US200913058649 A US 200913058649A US 2011160675 A1 US2011160675 A1 US 2011160675A1
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US
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Patent type
Prior art keywords
shield
needle
hub
channel
position
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
US13058649
Inventor
Tieming Ruan
Robert Bank
Eliot Zaiken
Michael Vincent Quinn
Gary Searle
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Becton Dickinson and Co
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Becton Dickinson and Co
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3243Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3271Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel with guiding tracks for controlled sliding of needle protective sleeve from needle exposing to needle covering position
    • A61M5/3272Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel with guiding tracks for controlled sliding of needle protective sleeve from needle exposing to needle covering position having projections following labyrinth paths
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3243Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3245Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3247Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3243Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3245Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3254Shielding of proximal needles, e.g. for pen needles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3243Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3257Semi-automatic sleeve extension, i.e. in which the triggering of the sleeve extension requires a deliberate action by the user, e.g. manual release of spring-biased extension means
    • A61M5/326Fully automatic, i.e. in which the triggering does not require a deliberate action by the user
    • A61M2005/3267Biased sleeves where the needle is uncovered by insertion of the needle into a patient's body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3243Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3257Semi-automatic sleeve extension, i.e. in which the triggering of the sleeve extension requires a deliberate action by the user, e.g. manual release of spring-biased extension means
    • A61M5/326Fully automatic, i.e. in which the triggering does not require a deliberate action by the user

Abstract

In one aspect, a safety pen needle assembly is provided herein which includes a hub with a needle fixed to the hub, the needle having a distal end, formed for insertion into a patient, and a proximal end. The assembly further includes a shield and a biasing member disposed between the hub and the shield configured to urge the shield distally. A protrusion extends from at least one of the hub and the shield with a channel being formed in at least the other of the hub and the shield. The channel is formed to accommodate the protrusion. The shield is movable from a first position to a second position. In the first position, the shield is spaced from the distal end of the needle such that the distal end of the needle is exposed. In the second position, the shield covers the distal end of the needle. The channel guides the protrusion as the shield moves from the first position to the second position. With this arrangement, a shield may be directed to move in a desired path with stability. In addition, the distal end of the needle may be initially exposed to permit visual confirmation of priming, while allowing the shield to cover a majority of the needle to minimize any needle-related anxiety.

Description

    BACKGROUND OF THE INVENTION
  • Safety pen needle assemblies are known in the prior art for providing shielding to a used pen needle to prevent inadvertent “needle sticks” therewith. These assemblies may be “passive”, which operate through normal use of the associated pen injector, or “active”, which require an additional step or steps to operate beyond normal operation of the associated pen injector.
  • Passive safety pen needle assemblies have been developed in the prior art which utilize a trigger that is activated upon sufficient application of force thereto during an injection procedure. A trigger may be provided which presses against a patient's skin with sufficient displacement of the trigger causing the assembly to activate. The activation of the trigger results in some form of a shield being released which may move distally to a shielding position covering a used needle. With these designs, concerns exist of preventing inadvertent trigger activation.
  • SUMMARY OF THE INVENTION
  • In one aspect, safety pen needle assembly is provided herein which includes a hub with a needle fixed to the hub, the needle having a distal end, formed for insertion into a patient, and a proximal end. The assembly further includes a shield and a biasing member disposed between the hub and the shield configured to urge the shield distally. A protrusion extends from at least one of the hub and the shield with a channel being formed in at least the other of the hub and the shield. The channel is formed to accommodate the protrusion. The shield is movable from a first position to a second position. In the first position, the shield is spaced from the distal end of the needle such that the distal end of the needle is exposed. In the second position, the shield covers the distal end of the needle. The channel guides the protrusion as the shield moves from the first position to the second position. With this arrangement, a shield may be directed to move in a desired path with stability. In addition, the distal end of the needle may be initially exposed to permit visual confirmation of priming, while allowing the shield to cover a majority of the needle to minimize any needle-related anxiety.
  • These and other features of the invention will be better understood through a study of the following detailed description and accompanying drawings.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIGS. 1-61 depict various safety pen needle assemblies, and components thereof, formed in accordance with the subject invention.
  • FIGS. 1-8 depict hubs or shields with channels that have moveable protrusions;
  • FIGS. 9-14 depict hubs or shields with straight channels that allow shields to be manually rotated to a locking position;
  • FIGS. 15-16 depict hubs or shields with straight channels that allow shields to be manually urged in a distal direction to be locked;
  • FIGS. 17-23 depict hubs or shields that allow shields to be automatically locked with a manual rotation;
  • FIGS. 24-25 depict a shield with locking tabs;
  • FIGS. 26-27 depict a shield or hub with a locking window and a curved channel;
  • FIGS. 28-32 depict depicts hubs or shields with straight channels that allow shields to be manually rotated to a locking position;
  • FIGS. 33-35 depict a shield or hub with a locking window and a curved channel;
  • FIG. 35A depicts an alternative arrangement for a curved channel;
  • FIG. 36 depicts a safety pen assembly with a secondary shield on the proximal end;
  • FIGS. 37-43 depict a safety pen assembly with a secondary shield on the proximal end with one or more locking arms;
  • FIGS. 44-45 depict a secondary shield with one or more locking arms;
  • FIGS. 46-48 depict a hub or shield with locking features for the secondary shield with one or more locking arms;
  • FIG. 49 depicts an alternate secondary shield for the proximal side with one or more locking arms;
  • FIG. 50 depicts a hub or shield with an alternative channel design;
  • FIGS. 51-52 depicts a plurality of channels and protrusions;
  • FIG. 53 depicts a shield with a plurality of integral protrusions and locking windows;
  • FIG. 54 depicts a hub with a plurality of channels;
  • FIGS. 55-57 depict an alternative secondary shield for the proximal end;
  • FIGS. 58-59 depict a separate embodiment for securely covering the proximal end of the needle; and
  • FIGS. 60-61 depict embodiments for determining the depth of the protrusion of a needle.
  • DETAILED DESCRIPTION OF THE INVENTION
  • With reference to FIGS. 1-57B, a safety pen needle assembly 10 is shown which generally includes a hub 12, a shield 14, and a biasing element 16 located therebetween. A needle 18 having a distal end 20, formed for insertion into a patient during a medical injection, and a proximal end 22 is provided and fixed to the hub 12. The safety pen needle assembly 10 is configured to have the shield 14 cover the distal end 20 of the needle 18 after use, i.e., after an injection.
  • The hub 12 includes a generally tubular body 24 having spaced apart distal and proximal ends 26, 28. The tubular body 24, preferably in proximity to the proximal end 28, may be provided with a mounting arrangement (e.g., threads; luer) configured for mounting onto the body of a medical injector, e.g., a pen injector. A channel 30 is provided which may be formed in the hub 12 or the shield 14. With reference to FIGS. 1-8, the channel 30 may be formed in the tubular body 24 to generally extend in a longitudinal direction from the distal end 26 to the proximal end 28 of the tubular body 24. As shown in the figures, the channel 30 may be a throughhole, which extends completely through the wall of the tubular body 24, or may be “blind” and be of limited depth in the tubular body 24 without extending therethrough. The channel 30 may have various configurations. With reference to FIGS. 1-8, the channel 30 may have a hook-, U- V-, J- or L-shape.
  • The shield 14 includes a distal end 32, having an aperture 34 (FIG. 5) formed therethrough, and a proximal end 36. The shield 14 may be of various configurations, as will be appreciated by those skilled in the art.
  • A protrusion 38 may be provided on the hub 12 or the shield 14, formed to be accommodated in the channel 30. With reference to the embodiment of FIGS. 1-8, the protrusion 38 projects from the shield 14. The biasing element 16 is disposed to urge the shield 14 distally. Under force of the biasing element 16, the protrusion 38 is preferably urged to the distalmost portion of the channel 30. The interengagement of the protrusion 38 and the tubular body 24, at the end of the channel 30, limits distal movement of the shield 14 relative to the hub 12.
  • Prior to use, the shield 14 is configured to be in an initial pre-use state. In this pre-use state, the shield 14 may be configured to cover the distal end 20 of the needle 18 (FIG. 4) or may be configured to leave the distal end 20 exposed (FIG. 28). The initial state of coverage of the distal end 20 may be determined by user preference. With the distal end 20 being initially covered, the needle 18 is not visible, thereby minimizing anxiety, particularly for a needlephobe. Alternatively, with the distal end 20 being exposed, a user may visually confirm proper priming and needle placement during an injection. Even with the distal end 20 being exposed, a majority of the needle 18 may still be covered to minimize anxiety.
  • During use, the shield 14 is caused to move proximally while pressed against a patient's skin, against the force of the biasing element 16. With sufficient pressure, the needle 18, passing through the aperture 34, enters the patient's skin the required depth and an injection is administered as is well known in the art. The shield 14 is urged proximally during this procedure. During this proximal movement, the protrusion 38 is guided by the channel 30. After injection, and removal of the shield 14 from the patient, the biasing element 16 urges the shield 14 distally to a position where the distal end 20 of the needle 18 is covered. The safety pen needle assembly 10 may be provided with a locking arrangement to lock the shield 14 in the final, shielded position covering the distal end 20. As appreciated by those skilled in the art, various locking arrangements are useable with the subject invention.
  • By way of non-limiting example, and with reference to FIGS. 1-8, the channel 30 is shown to have a general V-shape which permits for a locking arrangement. Specifically, a flexible finger 40 extends into the channel 30 which is inherently biased to extend towards a first edge 42 located along the channel 30. A gap 44 is defined between the flexible finger 40 and the first edge 42 which is sized to normally have a dimension smaller than the width of the protrusion 36. The gap 44 may be negligible or non-existent with the flexible finger 40 contacting the first edge 42. During use, the protrusion 38 is initially located to be in a first part 46 of the channel, which is located along the first edge 42. With the shield 14 being urged proximally, the protrusion 38 is urged proximally along the first part 46 and towards the gap 44 (FIG. 5). The protrusion 38 with sufficient proximal movement is forced through the gap 44, with the flexible finger 40 being deflected. After passage through the gap 44, the flexible finger 40 returns to its natural state (FIG. 6). The protrusion 38 passes through the gap 44 during the injection procedure (i.e., while the needle 18 is inserted into a patient the required depth for injection). In this manner, the shield 14 may be retracted to a limited depth (i.e., a depth corresponding to the protrusion 38 not passing through the gap 44) without activating the device. Once the protrusion 38 passes through the gap 44, the protrusion 38 cannot return to the initial state.
  • Upon the shield 14 being removed from a patient's skin, the biasing element 16 causes the shield 14 to move distally. As a result, the flexible finger 40 deflects the protrusion 38 into a second part 48 of the channel 30 (FIG. 7). To lock the shield 14 in the shielding position, a locking aperture 50 may be defined in the tubular body 24 of the hub 12 (FIG. 8). The locking aperture 50 may be located proximally of the second part 48 and may be formed to receive in snap engagement the protrusion 38. Under force of the biasing element 16, with the shield 14 being completely removed from a patient's skin, the shield 14 may be urged distally with the protrusion 38 coming into snap engagement with the locking aperture 50. A ridge 52 may be defined between the second part 48 and the locking aperture 50 which inhibits the protrusion 38 from re-entering the channel 30 and allowing the shield 14 to retract proximally. The biasing element 16 must generate sufficient biasing force to urge the protrusion 38 past the ridge 52 with this arrangement. Alternatively, the protrusion 38 may be urged to a distalmost portion of the second part 48 under force of the biasing element 16, and the protrusion 38 may be then manually urged into the locking aperture 50 by forcing the shield 14 a sufficient distance to permit the protrusion 38 to snap engage the locking aperture 50. The ridge 52 may be internally ramped or curved on a proximal edge to facilitate the protrusion 38 passing thereby.
  • To permit the distal end 20 of the needle 18 to be initially exposed, but later fully shielded, the locking aperture 50 may be located to be more distal of the distalmost portion of the first part 46 of the channel 30, as shown in FIGS. 1-8. In this manner, in a final shielding state, the shield 14 is permitted to extend more distally from the hub 12, than in the initial state, where the protrusion 38 is received in the distalmost portion of the first part 46. Optionally, or in the alternative, the second part 48 may extend more distally than the first part 46, likewise allowing the needle 18 to be initially exposed, but later fully shielded. This may be in addition to, or as an alternative to, locating the locking aperture 50 more distal than the distalmost portion of the first part 46.
  • As will be appreciated by those skilled in the art, any number of protrusions 38 and the channels 30 may be used consistent with the subject invention. Likewise, any number of elements discussed with respect to the other features may likewise be used in various quantities in conjunction with the subject invention.
  • Further, as will be appreciated by those skilled in the art, the protrusion 38 may be formed on the hub 12 with the channel 30 being formed on the shield 14, for example, as shown in FIGS. 9-14. As such, the channel 30 may move relative to the protrusion 38. Preferably, the shield 14 is located inside of the hub 12 where the protrusion 38 is formed on the shield 14. Also, preferably, the shield 14 is located externally of the hub 12 where the protrusion 38 is located on the hub 12.
  • In an alternate configuration, and with reference to FIGS. 9-23, the channel 30 may be straight and parallel to a longitudinal axis of the pen needle assembly 10. The straight shape of the channel 30 allows the protrusion 38 to move back and forth, proximally and distally. Different locking arrangements are available for use with this configuration. With reference to the configuration of FIGS. 9-14, after use, the shield 14 may be manually rotated to have the protrusion 38 snap engage with the locking aperture 50.
  • With reference to FIGS. 15-16, the locking aperture 50 may be located longitudinally spaced from the channel 30 in a proximal direction. With this arrangement, after use, the shield 14 may be urged manually in a distal direction with the protrusion 38 snap engaging the locking aperture 50.
  • With reference to FIGS. 9-16, the protrusion 38 may be initially seated in the channel 30 without any locking thereof. As such, the protrusion 38 may be freely movable before use. Optionally, a cover 53, having at least one inwardly extending element 55, may be provided configured to have the element 55 prevent the channel 30 from moving proximally prematurely. In addition or alternatively, the protrusion 38 may be releasably locked prior to use. For example, with reference to FIGS. 9-14, the protrusion 38 may be seated in the locking aperture 50 before use. To use the assembly 10, the shield 14 is manually rotated to urge the protrusion 38 into the channel 30. After use, reverse manual rotation of the shield 14 returns the protrusion 38 into snap engagement with the locking aperture 50.
  • The arrangements of FIGS. 9-16 require manual intervention to achieve locking. To avoid manual locking, and with reference to FIGS. 17-23, the channel 30 may have the first part 46 disposed transversely relative to the second part 48 which is parallel to the longitudinal axis of the pen needle assembly 10. In an initial state, as shown in FIG. 19, the protrusion 38 is seated in the channel 30, particularly the first part 46, to prevent proximal or distal movement of the shield 14 relative to the hub 12. With manual rotation of the shield 14, the protrusion 38 is moved through the first part 46 of the channel 30 and into the second part 48 (FIG. 20), where the shield 14 is free to move distally under force of the biasing element 16. The biasing element 16 is selected such that sufficient force is provided to force the protrusion 38 from the channel 30 (FIG. 21) and into snap engagement with the locking aperture 50 after use (FIG. 22). Preferably, with this arrangement, the shield 14 is not rotated until the needle 18 has been removed from a patient's skin after an injection. To enhance the user's ability to rotate the shield, textured regions 54 (FIG. 11) may be provided on the tubular body 24 and/or outwardly projecting wings 56 (FIG. 23) may be provided. In addition, the cover 53 (FIG. 17), having the at least one inwardly extending element 55, may be provided configured to have the element 55 prevent the protrusion 38 from entering the second part 48 prematurely.
  • The safety pen needle assembly 10 may be configured to have an automatically rotating arrangement where the shield 14 moves rotationally relative to the hub 12, such as to achieve locking, without manual intervention beyond the normal injection procedure. With reference to FIGS. 24-25, the shield 14 may be provided with a locking tab 58 in addition to the protrusion 38. Correspondingly, locking window 60 may be formed in the tubular body 24 (FIGS. 26-27) formed to receive the locking tab 58. With reference to FIGS. 28-32, the arrangement of the channel 30, with the flexible finger 40, as described above, may be utilized. With reference to FIGS. 33-35, the protrusion 38 moving from the first part 46 to the second part 48 of the channel 30, the shield 14 is caused to rotate relative to the hub 12. With the protrusion 38 moving through the second part 48 of the channel 30, the locking tab 58 and the locking window 60 are configured such that the locking tab 58 snap engages the locking window 60 and, thus, locks the shield 14. To facilitate proper operation of this locking arrangement, cantilevered tongues 62 may be defined in the tubular body 24 proximally of the locking windows 60 to allow resilience with the locking tabs 58 traversing thereacross. As discussed above, with the second part 48 being formed longer than the first part 46, the shield 14 may permit exposure of the distal end 20 of the needle 18 prior to use (FIG. 28) with full shielding thereof after use (FIG. 32).
  • As will be appreciated by those skilled in the art, the shape of the channel 30 directs the rotation of the shield 14. With reference to FIGS. 1-8, the first part 46 may be formed generally parallel to the longitudinal axis of the pen needle assembly 10. Accordingly, the shield 14 does not rotate with the protrusion 38 passing through the first part 46. Rotation is caused with the protrusion 38 passing through the second part 48, which is disposed transversely to the longitudinal axis of the pen needle assembly 10. Alternatively, as shown in FIG. 50, the first part 46 may be disposed transversely to the longitudinal axis of the pen needle assembly 10. As such, the shield 14 will rotate with the protrusion 38 traversing the first part 46—this results in the shield 14 rotating during insertion of the needle 18 into a patient. Rotation may be desired through both the first and second parts 46, 48. By angularly arranging the first and second parts 46, 48, rotation of the shield 14 may be controlled.
  • With reference to FIGS. 33-35, as an alternative to the flexible finger 40, the channel 30 may be provided with a stationary finger 64 separating the first part 46 from the second part 48. To ensure that the protrusion 38 moves into the second part 48 properly, it is preferred that the protrusion 38 be initially urged in the opposite direction from the desired rotational direction, while traversing the first part 46. For example, with reference to FIGS. 33-35, the stationary finger 64 is shown to be bent towards the left. As the protrusion 38 is urged proximally, the protrusion 38 also rotates to the left. In this manner, a torsional force is generated in the biasing element 16 which urges the protrusion 38 in a rightward direction. Preferably, the amount of rotation of the shield 14 (i.e., rotation of the protrusion 38) is limited during the injection. The travel of the protrusion 38 through the first part of the channel 30 coincides with the injection process. With the second part 48 being hook-shaped, once the protrusion 38 passes the stationary finger 64 and is under force of the generated torsion force, the protrusion 38 is urged into the second part 48. The protrusion 38, however, preferably does not traverse the second part 48 until after the injection, particularly after removal of the pen needle assembly 10 from the patient's skin. Upon removal of the shield 14 from the patient's skin, the biasing element 16 urges the shield 14 distally with the protrusion 38 traversing the second part 48. The locking arrangement as described above with the locking tab 58 and the locking window 60 may be utilized with this configuration.
  • FIG. 35A depicts an alternate arrangement for the channel 30 where the stationary finger 64 is generally straight. In this arrangement, as the pen needle assembly 10 is removed from the patient's skin, the shield 14 advances linearly through the first part 46, and the protrusion 38 contacts angular surfaces 39 a, 39 b, directing the protrusion 38 along the channel 30 into the second part 48. A locking arrangement may be utilized herewith such as, with angular surface 39 c being provided to direct the protrusion 38 into the locking window 60. The angular surfaces 39 a, 39 b, 39 c may be formed with straight and/or arcuate sections.
  • As depicted in FIGS. 51-54, a plurality of the channels 30 (30A, 30B, . . . ) and a plurality of the protrusions 38 (38A, 38B, . . . ) may be utilized. The entire circumference of the hub 12 and the shield 14 may be provided with the channels 30 and the protrusions 38.
  • The channels 30 may be provided in a repeated pattern with like configurations. As shown in FIG. 51, the channels 30 may have different configurations, such as the channels 30A, 30B. The channel 30B includes the first part 46 and the second part 48 separated by the stationary finger 64. The first channel 30A is shown to include the first part 46 and the second part 48, with the angular surfaces 39 a, 39 b, but with no separating finger. With movement of the protrusion 38B about the stationary finger 64, the protrusion 38A moves simultaneously along the channel 30A. As shown in dashed lines, in a final state, the protrusions 38A, 38B are located adjacent the ridges 52 (52A, 52B). The ridges 52 are positioned so as to limit axial movement in either axial direction. For example, the protrusion 38A is located above the ridge 52A while the protrusion 38B is located below the ridge 52B. The collective effect of this arrangement is to prevent axial movement, proximally or distally.
  • Angled surface 39 c may be provided to restrict backward movement of the protrusion 38A (and possibly movement out of a locked position). To enhance this restrictive effect, gap 41 may be defined adjacent to the angled surface 39 c. Preferably, the gap 41 is smaller than the diameter of the protrusion 38A. In addition, the stationary finger 64 and/or the angled surface 39 c may be defined to be deflectable, as shown in dashed lines. By being formed deflectable, the stationary finger 64 and the angled surface 39 c further resist backward movement of the protrusions 38A, 38B.
  • In some embodiments, as set forth in FIGS. 53-54, the shield 14 may be molded with a plurality of integral protrusions 38 along the lower edge 15 of the inside diameter. If desired, the top edge of the shield 14 may be provided with a plurality of openings 43 for each protrusion 38 to facilitate formation of the protrusion 38, particularly by molding. The protrusions 38 may be incorporated as a part of a latch feature 45, which is designed to flex as it passes over tapered leads or other raised sections of the channels 30 to engage with the body of the hub 12 and be properly positioned in the channels 30 ready for use.
  • As will be appreciated by those skilled in the art, the safety pen needle assembly 10 may be utilized with other features, including a shielding arrangement for shielding the proximal end 22 of the needle 18 after use. With reference to FIGS. 36-49, the arrangement of the channel 30 generally discussed with respect to FIGS. 1-8 is shown. In addition, a secondary shield 66 is shown. The secondary shield 66 includes one or more locking arms 68 that pass through openings 71 of bulkhead 70 formed in the tubular body 24 of the hub 12. The locking arms 68 each include a detent 72 which latches onto a portion of the bulkhead 70 in a pre-use state. As shown in FIGS. 37-40, the proximal end 22 of the needle 18 is exposed during use.
  • Preferably, the detent 72 includes a ramped surface 74 which faces generally distally. An angled engagement surface 76 is formed on the proximal end 36 of the shield 14 in axial alignment with the ramped surface 74. The ramped surface 74 and the engagement surface 76 are configured and arranged such that, upon sufficient proximal movement of the shield 14, the engagement surface 76 presses against the ramped surface 74 and causes outward displacement of the ramped surface 74. With sufficient outward displacement, the detent 72 unlatches from the bulkhead 70. The biasing element 16 may be located between the locking arms 68 and the shield 14 such as in a retaining channel 78. With the locking arms 68 being unlatched, the secondary shield 66 is free to move proximally under force of the biasing element 16. As shown in FIG. 42, the secondary shield 66 is urged to a shielding position where the proximal end 22 of the needle 18 is covered. The secondary shield 66 is free to move upon removal of the pen needle assembly 10 from an injector body B (FIG. 55). To lock the secondary shield 66 in this shielding position, one or more of the locking tabs 58 may be provided on the secondary shield 66 with an associated number of the locking windows 60 being formed in the tubular body 24. With the locking tabs 58 being in snap engagement with the locking windows 60, proximal or distal movement of the secondary shield 66 is limited. Alternatively, and with reference to FIGS. 55-57, the locking arms 68 may be formed with at least one secondary locking tab 86 and at least one tertiary locking tab 88. As shown in FIGS. 57A and 57B, the secondary locking tabs 86 and the tertiary locking tabs 88 are located on different locking arms 68 and spaced apart so as to sandwich the bulkhead 70 therebetween. During use, the bulkhead 70 is snap received in the collective gap formed by the secondary and tertiary locking tabs 86, 88. The secondary locking tabs 86 may be defined by the detents 72.
  • In addition, as shown in FIG. 56B, one or more latches 90 may be provided in addition to the locking arms 68 for latching the secondary shield 66 to the bulkhead 70 prior to use. The detents 72, with the ramped surfaces 74, may be formed on the latches 90, in addition, or alternatively, to the locking arms 68.
  • With reference to FIGS. 58 a-59, a further useable shield for covering the proximal end 22 of the needle 18 is depicted. Here, a leafspring 100 is utilized which is secured to the pen needle assembly 10, preferably at the hub 12. As shown in FIG. 58 a, the leafspring 100 in a pre-use state is configured to be spaced from the proximal end 22 of the needle 18. Preferably, the leafspring 100 is retained by a frangible connection 102. With reference to FIG. 58, it is preferred that the connection 102 rupture upon the pen needle assembly 10 being mounted onto the injector body B. For example, the hub 12 may be formed with a slightly smaller inner diameter, which expands upon being mounted, thus causing rupture of the connection 102.
  • As shown in FIG. 59, the leafspring 100 is formed with inherent memory to cover the proximal end 22 of the needle 18. Thus, with the connection 102 being ruptured, and the pen needle assembly 10 being removed from the injector body B, the leafspring 100 is free to move and shield the proximal end 22. Inherent resilience of the leafspring 100 shall cause the leafspring 100 to remain over the proximal end 22.
  • As will be appreciated by those skilled in the art, the leafspring 100 may be formed of various materials which provide internal resilience to urge the leafspring 100 to the shielding state. Preferably, the leafspring 100 is formed of a thermoplastic material and more preferably formed unitarily with the hub 12. Biasing force to urge the leafspring 100 to the shielding state may be generated about junction 104 formed at the intersection of the leafspring 100 and the pen needle assembly 10. Preferably, free end 106 of the leafspring 100 biases outwardly upon rupture of the connection 102 to be clear of other portions of the pen needle assembly 10. In this manner, the free end 106 is urged by the biasing force generated about the junction 104 to cover the proximal end 22 of the needle 18.
  • Preferably, the various locking apertures or windows discussed above for receiving in snap engagement a locking element (e.g., the locking aperture 50; the locking window 60) are preferably through holes which extend through a respective surface to permit visual confirmation of a locked arrangement from an external vantage point. The apertures or windows may be formed blind with limited depth so as to not fully extend through a respective surface. This is less desirable since visual confirmation may not be achievable. However, an audible or tactile click may be relied to indicate snap engagement.
  • As depicted in FIGS. 60A-60C, the present invention may include one or more indicia for determining the depth of protrusion (insertion) of the needle 18 into the patient's body. This may be important, for example, when the medication being injected is desirably administered to a particular depth into the body of the patient. The invention may include an outer shield assembly 120 that is slidably attached to the outer surface 128 of a portion of a medical injector, preferably the outer surface 128 of a needle assembly (e.g. the outer surface of the hub 12). The outer shield assembly 120 may include a small diameter cylinder 122, which is offset from the axis of the needle 18. At the top of the cylinder 122 is a shield portion 124, which may cantilever from the cylinder 122. The cylinder 122 may include one or more depth markings 126 to allow control of the insertion depth of the needle 108.
  • In this embodiment, as the distal end 20 of the needle 18 is inserted into the skin of the patient, the outer shield assembly 120 is pressed by a patient's skin and moved away from the distal end 20 of the needle 108 down the outer surface 128 of the assembly. As the outer shield assembly 120 is pressed down by the patient's skin, the depth markings 126 are likewise pressed down away from the distal end 110 of the needle 18. The user can thus view the depth markings 126 as the needle 18 is inserted into the skin, or after injection, and determine the proper insertion depth for the needle 18.
  • If desired, the outer shield assembly 120 may provide a shield for the distal end 110 of the needle 18 after use. The shield portion 124 may be formed to cover the distal end 110 of the needle 18. The shield portion 124 may be manually adjusted after use to cover the distal end 20. Preferably, the outer shield assembly 120 includes a spring 130, which biases the outer shield assembly 120 along the outer surface 128 of the assembly towards the distal end 20 of the needle 18. Prior to use, the outer shield assembly 120 may be disposed such that the distal end 20 of the needle 18 is exposed (FIG. 60A). During use, the distal end 20 of the needle 18 is pressed into the skin of the patient, thus forcing the outer shield assembly 120 down along the outer surface 128 of the assembly (FIG. 60B). Once the injection is complete, the needle 18 is removed from the skin of the patient. As the force of the skin against the outer shield assembly 120 is removed, the spring 130 forces the outer shield assembly 120 towards the distal end 20 of the needle 18, covering the tip of the distal end 20 (FIG. 60C). If desired, the outer shield assembly 120 may include a locking arrangement to secure the outer shield assembly 120 in place once it has covered the distal end 20 of the needle 18.
  • It will be understood by those of skill in the art that the cylinder 122 need not have a circular cross-section, rather it may be oval, ellipsoidal, or any other shape that matches up to the outer surface 128 of the assembly. For example, the cylinder 122 may be crescent shaped so as to aid in the sliding engagement with the outer surface 128 of the assembly. Further, the shield 124 need not completely surround the needle, and may include two prong-like arms that extend alongside the distal end 110 of the needle 108, preventing accidental contact.
  • The depth markings 126 may include a series of markings on the cylinder 122, or may include one single depth mark that is used to indicate that the needle 18 has been inserted the proper depth into the patient. Alternatively, a single depth mark may indicate that the needle 18 has been inserted a sufficient distance to engage the safety mechanism of the outer shield assembly 120 (i.e., the spring has been depressed enough to allow the shield portion 124 to cover the distal end 20 of the needle). The depth markings 126 may be etched into the cylinder 122, or they may be drawn onto the cylinder 122 with ink or any suitable material.
  • In an alternate embodiment, the outer shield assembly 120 may include an additional protruding member parallel to the cylinder 122 such that the outer shield assembly 120 rests along the outside of the hub. In this case, the hub may be restrained and move between the cylinder 122 and protrusions.
  • As will be appreciated by those skilled in the art, the various features described herein may be used in various combinations. For example, and with reference to FIG. 61, the non-patient shield may be used in conjunction with the depth markings and shield.

Claims (21)

  1. 1. A safety pen needle assembly comprising:
    a hub;
    a needle fixed to said hub, said needle having a distal end, formed for insertion into a patient, and a proximal end;
    a shield; and,
    a biasing means disposed between said hub and said shield configured to urge said shield distally,
    wherein, a protrusion extends from at least one of said hub and said shield, a channel is formed in at least the other of said hub and said shield, said channel formed to accommodate said protrusion,
    wherein said shield is movable from a first position to a second position, wherein, in said first position, said shield is spaced from said distal end of said needle such that said distal end of said needle is exposed, wherein, in said second position, said shield covers said distal end of said needle, and wherein said channel guides said protrusion as said shield moves from said first position to said second position;
    whereby when said shield is in said first position, a user may visually confirm proper priming and needle placement during use.
  2. 2. The needle assembly of claim 1, wherein said channel is generally U-shaped, V-shaped, J-shaped, or hook-shaped.
  3. 3. The needle assembly of claim 1, wherein said channel has a proximal and a distal end, and wherein under force of said biasing means, said protrusion is urged towards said distal end of said channel.
  4. 4. The needle assembly of claim 1, further comprising a locking means to lock said shield in said second position.
  5. 5. The needle assembly of claim 4, wherein said shield may be locked in said second position through manual manipulation by said patient.
  6. 6. The needle assembly of claim 4, wherein a locking tab extends from at least one of said hub and said shield, a locking window is formed in at least the other of said hub and said shield, wherein said locking tab engages said locking window when said shield is in said second position.
  7. 7. The needle assembly of claim 1, wherein said channel comprises a first part and a second part, wherein said protrusion is located in said first part of said channel prior to use and wherein said protrusion is located in said second part of said channel after use.
  8. 8. The needle assembly of claim 7, wherein a flexible finger extends into said channel which extends across an axis extending from said first part of said channel.
  9. 9. The needle assembly of claim 8, wherein during use, said flexible finger deflects said protrusion into said second part of said channel.
  10. 10. The needle assembly of claim 7, wherein the distalmost portion of said second part of said channel is located distally of the distalmost portion of said first part of said channel.
  11. 11. The needle assembly of claim 10, wherein a locking tab extends from at least one of said hub and said shield, a locking window is formed in at least the other of said hub and said shield, wherein said locking tab engages said locking window when said shield is in said second position, and wherein said locking window is located more distally than the distalmost portion of said first part of said channel.
  12. 12. The needle assembly of claim 7, wherein a locking tab extends from at least one of said hub and said shield, a locking window is formed in at least the other of said hub and said shield, wherein said locking tab engages said locking window when said shield is in said second position, and wherein said locking window is located more distally than the distalmost portion of said first part of said channel.
  13. 13. A safety pen needle assembly comprising:
    a hub;
    a needle fixed to said hub, said needle having a distal end, formed for insertion into a patient, and a proximal end;
    a shield; and,
    a biasing means disposed between said hub and said shield configured to urge said shield distally,
    wherein a protrusion extends from at least one of said hub and said shield, a channel is formed in at least the other of said hub and said shield, said channel formed to accommodate said protrusion,
    wherein said shield is movable from a first position to a second position, wherein, in said first position, said shield covers said distal end of said needle, wherein, in said second position, said distal end of said needle is exposed, and wherein said channel guides said protrusion as said shield moves from said first position to said second position; and,
    wherein said shield is initially in a locked state with said protrusion being spaced from said channel, said shield being manually movable out of said locked state to urge said protrusion into said channel thereby allowing said shield to move from said first position to said second position.
  14. 14. The needle assembly of claim 13, wherein a locking aperture is formed in at least one of said hub and said shield formed to accommodate in snap engagement said protrusion in said locked state, said locking aperture being spaced from said channel.
  15. 15. The needle assembly of claim 13, wherein said shield is rotatable out of said locked state.
  16. 16. The needle assembly of claim 13, wherein said shield is axially displaceable out of said locked state.
  17. 17. A safety pen needle assembly comprising:
    a hub;
    a needle fixed to said hub, said needle having a distal end, formed for insertion into a patient, and a proximal end;
    an axially-displaceable shield for covering said distal end of said needle, said shield having an angled engagement surface defined thereon;
    a secondary shield for covering said proximal end of said needle, said secondary shield having at least one detent with a ramped surface formed thereon in axial alignment with said angled engagement surface; and,
    a biasing means disposed to urge said secondary shield proximally,
    wherein, said detent releasably retains said secondary shield in a first state with said proximal end of said needle being exposed, and,
    wherein, with sufficient proximal movement of said shield, said engagement surface engages said ramped surface and causes displacement of said detent thereby releasing said secondary shield from said first state and allowing said biasing means to urge said secondary shield proximally.
  18. 18. The needle assembly of claim 17, wherein said secondary shield includes one or more elongated locking arms, said detent being formed on said locking arm.
  19. 19. The needle assembly of claim 18, wherein one or more locking tabs being configured on said locking arms so as to collectively snap receive a portion of said hub.
  20. 20. A safety pen assembly comprising:
    a hub;
    a needle fixed to said hub, said needle having a distal end, formed for insertion into a patient, and a proximal end; and,
    a leafspring secured to said hub by a frangible connection, said frangible connection being rupturable, wherein, with rupture of said frangible connection, a free end of said leafspring is urged to cover said proximal end of said needle.
  21. 21. A medical injector comprising:
    a needle; and,
    a slidable body disposed adjacent to said needle, said body having depth marks defined thereon, wherein during an injection of said needle into a patient, said slidable body is depressed by the patient's skin, said depth marks indicating the extent of depression of said body during the injection thereby providing an indication of depth of injection by said needle.
US13058649 2008-08-15 2009-08-17 Safety pen needle assembly Pending US20110160675A1 (en)

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PCT/US2009/054001 WO2010019936A1 (en) 2008-08-15 2009-08-17 Safety pen needle assembly
US13058649 US20110160675A1 (en) 2008-08-15 2009-08-17 Safety pen needle assembly

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Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100292654A1 (en) * 2009-05-15 2010-11-18 Stat Medical Devices, Inc. Pen needle with quick release and/or removal system
US20110023281A1 (en) * 2009-04-30 2011-02-03 Stat Medical Devices, Inc. Pen injection device cap with integral pen needle quick release and/or removal system
US20110071492A1 (en) * 2009-09-18 2011-03-24 Becton, Dickinson And Company Hub assembly having a hidden needle for a drug delivery pen
US20110077615A1 (en) * 2006-12-26 2011-03-31 Stat Medical Devices, Inc. Pen Needle Tip
US20130006216A1 (en) * 2010-02-01 2013-01-03 Margaret Taylor Low dose prefilled drug delivery device and method
US8486024B2 (en) 2011-04-27 2013-07-16 Covidien Lp Safety IV catheter assemblies
US20130317432A1 (en) * 2012-05-25 2013-11-28 Aptar France Sas Autoinjector
US8628497B2 (en) 2011-09-26 2014-01-14 Covidien Lp Safety catheter
JP2014014598A (en) * 2012-07-11 2014-01-30 Nipro Corp Needle assembly
US8663174B2 (en) 2009-11-13 2014-03-04 Becton, Dickinson And Company Hub assembly having a hidden needle for a drug delivery pen
US8715250B2 (en) 2011-09-26 2014-05-06 Covidien Lp Safety catheter and needle assembly
US20140249481A1 (en) * 2011-10-06 2014-09-04 Sanofi-Aventis Deutschland Gmbh Needle Safety Device
US8834422B2 (en) 2011-10-14 2014-09-16 Covidien Lp Vascular access assembly and safety device
WO2014105667A3 (en) * 2012-12-26 2014-10-09 Becton, Dickinson And Company Pen needle assembly
US8939938B2 (en) 2006-10-12 2015-01-27 Covidien Lp Needle tip protector
US8961470B2 (en) 2011-02-17 2015-02-24 Steven Schraga Pen needle with safety shield system
EP2886147A1 (en) * 2013-12-20 2015-06-24 Sanofi-Aventis Deutschland GmbH Safety device for a drug delivery device
US9078978B2 (en) 2011-12-28 2015-07-14 Stat Medical Devices, Inc. Needle assembly with safety system for a syringe or fluid sampling device and method of making and using the same
EP2918299A1 (en) * 2014-03-11 2015-09-16 Terumo Kabushiki Kaisha Liquid administration device
WO2015166288A1 (en) * 2014-05-01 2015-11-05 New Injection Systems Ltd Needle safety shield
WO2016024085A1 (en) * 2014-08-12 2016-02-18 Owen Mumford Limited Needle assembly
USD768851S1 (en) 2014-06-30 2016-10-11 Htl-Strefa Spolka Akcyjna Safety needle device
USD768852S1 (en) 2014-06-30 2016-10-11 Htl-Strefa Spolka Akcyjna Safety needle device
US20170056600A1 (en) * 2012-06-20 2017-03-02 Safety Syringes, Inc. Contact Trigger Release Needle Guard with Elastic Spring
US9950124B2 (en) 2014-03-11 2018-04-24 Terumo Kabushiki Kaisha Liquid administration tool

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102905744B (en) * 2010-03-25 2016-03-30 赛诺菲-安万特德国有限公司 Automatic dosing module having a reservoir engaged
CN203154486U (en) 2010-05-17 2013-08-28 贝克顿·迪金森公司 Needle assembly with needle injection depth adjustment
CN203059826U (en) 2010-05-26 2013-07-17 贝克顿·迪金森公司 Safe pin assembly
US8162882B2 (en) * 2010-06-23 2012-04-24 Sta-Med, Llc Automatic-locking safety needle covers and methods of use and manufacture
US9352099B2 (en) 2010-07-02 2016-05-31 Sanofi-Aventis Deutschland Gmbh Safety device for a pre-filled syringe and injection device
CN103025374B (en) * 2010-07-02 2015-05-06 赛诺菲-安万特德国有限公司 Safety device for a pre-filled syringe, injection device and injection kit
JP5923097B2 (en) * 2010-10-25 2016-05-24 サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング Safety device
EP2457608A1 (en) * 2010-11-29 2012-05-30 Sanofi-Aventis Deutschland GmbH Medicated module and syringe
JP2013544158A (en) * 2010-11-29 2013-12-12 サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング Auto - medicated module for use with a syringe delivery device
WO2012143440A1 (en) * 2011-04-21 2012-10-26 Sanofi-Aventis Deutschland Gmbh Medicated module assembly with automatic trigger
EP2709694B1 (en) * 2011-05-18 2018-03-21 Becton, Dickinson and Company Single-use injector of low cost
WO2012166746A1 (en) 2011-05-31 2012-12-06 Sta-Med, Llc Blood collection safety devices and methods of use and manufacture
EP2572746A1 (en) * 2011-09-23 2013-03-27 Sanofi-Aventis Deutschland GmbH Needle safety device
WO2014013547A1 (en) * 2012-07-17 2014-01-23 テルモ株式会社 Liquid-administering instrument
WO2014125562A1 (en) * 2013-02-12 2014-08-21 テルモ株式会社 Syringe
CA2974585A1 (en) * 2015-01-26 2016-08-04 Biocorp Production Device for protecting a needle, syringe provided with such a device, and method for producing pre-filled cemented needle syringes
FR3031904A1 (en) * 2015-01-26 2016-07-29 Biocorp Rech Et Dev A device for protecting a needle, syringe equipped with such a device and method for manufacturing pre-filled syringes has Glued needle
JP6073393B2 (en) * 2015-02-23 2017-02-01 ベクトン・ディキンソン・アンド・カンパニーBecton, Dickinson And Company Needle injection depth adjustment with the needle assembly

Citations (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4804372A (en) * 1987-09-08 1989-02-14 Laico Joseph P Protective sheath for hypodermic needle
US4894055A (en) * 1988-12-28 1990-01-16 Sudnak Paul J Needle guard assembly for use with hypodermic syringes and the like
US4917673A (en) * 1988-10-31 1990-04-17 Coplin Allan J Assembly for the protection against inadvertent puncture by medical needles
US4932940A (en) * 1988-06-06 1990-06-12 Walker Cedric F Needle guard device
US4985021A (en) * 1989-01-31 1991-01-15 Jeff Straw Safety enclosure system for medical devices
US5137521A (en) * 1991-08-19 1992-08-11 Alco Machine & Tool, Inc. Telescoping safety guard for hypodermic needles and the like
US5242401A (en) * 1992-10-09 1993-09-07 Colsky Andrew E Disposable needle head assembly
US5267977A (en) * 1992-10-29 1993-12-07 Feeney Jr Richard J No-stick syringe
US5292314A (en) * 1993-02-11 1994-03-08 International Medical Consultants, Inc. Automatic needle protector
US5389085A (en) * 1993-02-11 1995-02-14 International Medical Consultants, Inc. Automatic needle protector
US5429612A (en) * 1990-11-26 1995-07-04 Dentoptic Syringe with a slidable needle protection device
US5472430A (en) * 1993-08-18 1995-12-05 Vlv Associates Protected needle assembly
US5549558A (en) * 1995-06-09 1996-08-27 Martin; Robin P. Self sheathing safety needle
US5573512A (en) * 1990-09-05 1996-11-12 Advanced Protective Injection Systems B.V. Infusion or transfusion needle assembly
US5795336A (en) * 1993-02-11 1998-08-18 Beech Medical Products, Inc. Automatic needle protector having features for facilitating assembly
US6203529B1 (en) * 1997-11-19 2001-03-20 B D Medico Needle arrangement
US20030014018A1 (en) * 2000-08-02 2003-01-16 Lucio Giambattista Pen needle and safety shield system
US6547764B2 (en) * 2000-05-31 2003-04-15 Novo Nordisk A/S Double pointed injection needle
US20030078546A1 (en) * 2001-10-22 2003-04-24 Jensen James U. Injection needle assembly
US20030149403A1 (en) * 1999-11-29 2003-08-07 John Barker Combination safety needle assembly medical apparatus
US20040111064A1 (en) * 2002-12-10 2004-06-10 Asbaghi Hooman A. Position guide for a needle guard
US20050059936A1 (en) * 2001-03-02 2005-03-17 Fiser Richard L. Passive safety shield
US20050096598A1 (en) * 2003-11-03 2005-05-05 Becton, Dickinson And Company Safety shield system for a syringe
US7001364B1 (en) * 2002-08-13 2006-02-21 Parham Farhi Needle safety cap device
US20060189933A1 (en) * 2005-02-18 2006-08-24 Becton, Dickinson And Company Safety shield system for a syringe
WO2006131832A1 (en) * 2005-04-20 2006-12-14 Becton Dickinson France Protection device for protecting an injection needle
US7179255B2 (en) * 1995-06-07 2007-02-20 Arthrocare Corporation Methods for targeted electrosurgery on contained herniated discs
US20090069753A1 (en) * 2007-09-07 2009-03-12 Becton, Dickinson And Company Pen Needle Assembly For Preventing Under-Torquing and Over-Torquing Of Pen Needle
US20110118667A1 (en) * 2009-11-13 2011-05-19 Becton Dickinson And Company Hub Assembly Having A Hidden Needle For A Drug Delivery Pen
US8177745B2 (en) * 2006-09-01 2012-05-15 Tecpharma Licensing Ag Needle safety module comprising a locking mechanism and a user identification

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1315166C (en) * 1988-10-05 1993-03-30 John S. Parry Injection devices
JPH02140138A (en) * 1988-11-21 1990-05-29 Toyo Commun Equip Co Ltd Applicator with scales
US4927019A (en) * 1989-06-12 1990-05-22 Habley Medical Technology Corporation Combination needle sheath and sterility package
WO1993001851A1 (en) * 1991-07-18 1993-02-04 Sterimatic Holdings Limited Skin puncturing instruments, especially clinical needles
US5993426A (en) * 1993-04-16 1999-11-30 Sims Portex Inc. Fluid absorbable needle sheath
US7070596B1 (en) * 2000-08-09 2006-07-04 Arthrocare Corporation Electrosurgical apparatus having a curved distal section
US6379336B1 (en) * 1999-06-18 2002-04-30 Hooman A. Asbaghi Protective device for injection or aspiration needle
US6494865B1 (en) * 1999-10-14 2002-12-17 Becton Dickinson And Company Intradermal delivery device including a needle assembly
JP2001231858A (en) * 2000-02-24 2001-08-28 Terumo Corp Medical instrument
EP1138338A1 (en) * 2000-03-20 2001-10-04 Becton, Dickinson and Company Medical safety disposal cap assembly
EP1409048A2 (en) * 2001-06-08 2004-04-21 Eli Lilly And Company Needle hiding assembly for a medication injector
JP3882926B2 (en) * 2004-03-10 2007-02-21 明正 許 Retractable medical blood collection device
JP2006175070A (en) * 2004-12-22 2006-07-06 Terumo Corp Medical appliance set
GB0603926D0 (en) * 2006-02-28 2006-04-05 Owen Mumford Ltd Syringes
DE102006042233B3 (en) * 2006-09-06 2008-03-06 Tecpharma Licensing Ag Needle protection device with the distal and proximal needle guard
US7462168B2 (en) * 2007-01-23 2008-12-09 Becton, Dickinson And Company Safety pen needle with passive safety shield system

Patent Citations (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4804372A (en) * 1987-09-08 1989-02-14 Laico Joseph P Protective sheath for hypodermic needle
US4932940A (en) * 1988-06-06 1990-06-12 Walker Cedric F Needle guard device
US4917673A (en) * 1988-10-31 1990-04-17 Coplin Allan J Assembly for the protection against inadvertent puncture by medical needles
US4894055A (en) * 1988-12-28 1990-01-16 Sudnak Paul J Needle guard assembly for use with hypodermic syringes and the like
US4985021A (en) * 1989-01-31 1991-01-15 Jeff Straw Safety enclosure system for medical devices
US5573512A (en) * 1990-09-05 1996-11-12 Advanced Protective Injection Systems B.V. Infusion or transfusion needle assembly
US5429612A (en) * 1990-11-26 1995-07-04 Dentoptic Syringe with a slidable needle protection device
US5137521A (en) * 1991-08-19 1992-08-11 Alco Machine & Tool, Inc. Telescoping safety guard for hypodermic needles and the like
US5242401A (en) * 1992-10-09 1993-09-07 Colsky Andrew E Disposable needle head assembly
US5267977A (en) * 1992-10-29 1993-12-07 Feeney Jr Richard J No-stick syringe
US5389085A (en) * 1993-02-11 1995-02-14 International Medical Consultants, Inc. Automatic needle protector
US5292314A (en) * 1993-02-11 1994-03-08 International Medical Consultants, Inc. Automatic needle protector
US5795336A (en) * 1993-02-11 1998-08-18 Beech Medical Products, Inc. Automatic needle protector having features for facilitating assembly
US5472430A (en) * 1993-08-18 1995-12-05 Vlv Associates Protected needle assembly
US7179255B2 (en) * 1995-06-07 2007-02-20 Arthrocare Corporation Methods for targeted electrosurgery on contained herniated discs
US5549558A (en) * 1995-06-09 1996-08-27 Martin; Robin P. Self sheathing safety needle
US6203529B1 (en) * 1997-11-19 2001-03-20 B D Medico Needle arrangement
US20030149403A1 (en) * 1999-11-29 2003-08-07 John Barker Combination safety needle assembly medical apparatus
US6547764B2 (en) * 2000-05-31 2003-04-15 Novo Nordisk A/S Double pointed injection needle
US20030014018A1 (en) * 2000-08-02 2003-01-16 Lucio Giambattista Pen needle and safety shield system
US20050059936A1 (en) * 2001-03-02 2005-03-17 Fiser Richard L. Passive safety shield
US20030078546A1 (en) * 2001-10-22 2003-04-24 Jensen James U. Injection needle assembly
US7001364B1 (en) * 2002-08-13 2006-02-21 Parham Farhi Needle safety cap device
US20040111064A1 (en) * 2002-12-10 2004-06-10 Asbaghi Hooman A. Position guide for a needle guard
US20050096598A1 (en) * 2003-11-03 2005-05-05 Becton, Dickinson And Company Safety shield system for a syringe
US7497847B2 (en) * 2003-11-03 2009-03-03 Becton, Dickinson And Company Safety shield system for a syringe
US20060189933A1 (en) * 2005-02-18 2006-08-24 Becton, Dickinson And Company Safety shield system for a syringe
WO2006131832A1 (en) * 2005-04-20 2006-12-14 Becton Dickinson France Protection device for protecting an injection needle
US20090024093A1 (en) * 2005-04-20 2009-01-22 Franck Carrel Protection device for protecting an injection needle
US8177745B2 (en) * 2006-09-01 2012-05-15 Tecpharma Licensing Ag Needle safety module comprising a locking mechanism and a user identification
US20090069753A1 (en) * 2007-09-07 2009-03-12 Becton, Dickinson And Company Pen Needle Assembly For Preventing Under-Torquing and Over-Torquing Of Pen Needle
US20110118667A1 (en) * 2009-11-13 2011-05-19 Becton Dickinson And Company Hub Assembly Having A Hidden Needle For A Drug Delivery Pen

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8939938B2 (en) 2006-10-12 2015-01-27 Covidien Lp Needle tip protector
US8834415B2 (en) 2006-12-26 2014-09-16 Stat Medical Devices, Inc. Pen needle tip
US8287492B2 (en) 2006-12-26 2012-10-16 Stat Medical Devices Pen needle tip
US20110077615A1 (en) * 2006-12-26 2011-03-31 Stat Medical Devices, Inc. Pen Needle Tip
US20110023281A1 (en) * 2009-04-30 2011-02-03 Stat Medical Devices, Inc. Pen injection device cap with integral pen needle quick release and/or removal system
US20100292654A1 (en) * 2009-05-15 2010-11-18 Stat Medical Devices, Inc. Pen needle with quick release and/or removal system
US9700681B2 (en) 2009-05-15 2017-07-11 Stat Medical Devices, Inc. Pen needle with quick release and/or removal system
US20110071492A1 (en) * 2009-09-18 2011-03-24 Becton, Dickinson And Company Hub assembly having a hidden needle for a drug delivery pen
US8663174B2 (en) 2009-11-13 2014-03-04 Becton, Dickinson And Company Hub assembly having a hidden needle for a drug delivery pen
US20130006216A1 (en) * 2010-02-01 2013-01-03 Margaret Taylor Low dose prefilled drug delivery device and method
US9849247B2 (en) * 2010-02-01 2017-12-26 Becton, Dickinson And Company Low dose prefilled drug delivery device and method
US8961470B2 (en) 2011-02-17 2015-02-24 Steven Schraga Pen needle with safety shield system
US8486024B2 (en) 2011-04-27 2013-07-16 Covidien Lp Safety IV catheter assemblies
US8926563B2 (en) 2011-04-27 2015-01-06 Covidien Lp Safety IV catheter assemblies
US8715250B2 (en) 2011-09-26 2014-05-06 Covidien Lp Safety catheter and needle assembly
US9375552B2 (en) 2011-09-26 2016-06-28 Covidien Lp Safety needle assembly
US8628497B2 (en) 2011-09-26 2014-01-14 Covidien Lp Safety catheter
US9694141B2 (en) * 2011-10-06 2017-07-04 Sanofi-Aventis Deutschland Gmbh Needle safety device
JP2014528304A (en) * 2011-10-06 2014-10-27 サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング Needle safety device
US20140249481A1 (en) * 2011-10-06 2014-09-04 Sanofi-Aventis Deutschland Gmbh Needle Safety Device
US8834422B2 (en) 2011-10-14 2014-09-16 Covidien Lp Vascular access assembly and safety device
US9770200B2 (en) 2011-12-28 2017-09-26 Stat Medical Devices, Inc. Needle assembly with safety system for a syringe or fluid sampling device and method of making and using the same
US9078978B2 (en) 2011-12-28 2015-07-14 Stat Medical Devices, Inc. Needle assembly with safety system for a syringe or fluid sampling device and method of making and using the same
US20130317432A1 (en) * 2012-05-25 2013-11-28 Aptar France Sas Autoinjector
US9662447B2 (en) * 2012-05-25 2017-05-30 Aptar France Sas Autoinjector
US20170056600A1 (en) * 2012-06-20 2017-03-02 Safety Syringes, Inc. Contact Trigger Release Needle Guard with Elastic Spring
JP2014014598A (en) * 2012-07-11 2014-01-30 Nipro Corp Needle assembly
WO2014105667A3 (en) * 2012-12-26 2014-10-09 Becton, Dickinson And Company Pen needle assembly
EP2886147A1 (en) * 2013-12-20 2015-06-24 Sanofi-Aventis Deutschland GmbH Safety device for a drug delivery device
WO2015091847A1 (en) * 2013-12-20 2015-06-25 Sanofi-Aventis Deutschland Gmbh Safety device for a drug delivery device
EP2918299A1 (en) * 2014-03-11 2015-09-16 Terumo Kabushiki Kaisha Liquid administration device
US9950124B2 (en) 2014-03-11 2018-04-24 Terumo Kabushiki Kaisha Liquid administration tool
JP2017514586A (en) * 2014-05-01 2017-06-08 ニュー インジェクション システムズ リミテッド Needle safety shield
WO2015166288A1 (en) * 2014-05-01 2015-11-05 New Injection Systems Ltd Needle safety shield
KR101825869B1 (en) 2014-05-01 2018-02-05 뉴 인젝션 시스템즈 엘티디 Needle safety shield
USD768852S1 (en) 2014-06-30 2016-10-11 Htl-Strefa Spolka Akcyjna Safety needle device
USD768851S1 (en) 2014-06-30 2016-10-11 Htl-Strefa Spolka Akcyjna Safety needle device
WO2016024085A1 (en) * 2014-08-12 2016-02-18 Owen Mumford Limited Needle assembly

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WO2010019936A1 (en) 2010-02-18 application
CA2733932A1 (en) 2010-02-18 application
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JP6050442B2 (en) 2016-12-21 grant

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