WO2001037908A1 - Hollow-needle devices - Google Patents

Hollow-needle devices Download PDF

Info

Publication number
WO2001037908A1
WO2001037908A1 PCT/GB2000/004456 GB0004456W WO0137908A1 WO 2001037908 A1 WO2001037908 A1 WO 2001037908A1 GB 0004456 W GB0004456 W GB 0004456W WO 0137908 A1 WO0137908 A1 WO 0137908A1
Authority
WO
WIPO (PCT)
Prior art keywords
hollow
plunger
hub
needle device
deflection
Prior art date
Application number
PCT/GB2000/004456
Other languages
French (fr)
Inventor
Peter Jeffrey
Original Assignee
Safe-T-Limited
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
Application filed by Safe-T-Limited filed Critical Safe-T-Limited
Priority to AU15336/01A priority Critical patent/AU1533601A/en
Publication of WO2001037908A1 publication Critical patent/WO2001037908A1/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
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • 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
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • A61M2005/3235—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user triggered by radial deflection of the anchoring parts between needle mount and syringe barrel or needle housing, e.g. spreading of needle mount retaining hooks having slanted surfaces by engagement with correspondingly shaped surfaces on the piston at the end of an injection stroke
    • 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
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • A61M2005/3235—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user triggered by radial deflection of the anchoring parts between needle mount and syringe barrel or needle housing, e.g. spreading of needle mount retaining hooks having slanted surfaces by engagement with correspondingly shaped surfaces on the piston at the end of an injection stroke
    • A61M2005/3236—Trigger provided at the distal end, i.e. syringe end for mounting 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
    • A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M5/508—Means for preventing re-use by disrupting the piston seal, e.g. by puncturing

Definitions

  • This invention relates to hollow-needle devices such as hypodermic syringes and body fluid samplers; and has particular relevance to such devices with provision for automatic full retraction of the hollow-needle after use for device contents expression, usually after a single such use.
  • a hollow-needle device comprising a hollow plunger, a body part affording a cylindrical chamber within which the plunger is sealingly slidable, a hollow-needle carrying hub for automatic retraction into the plunger, and a holding provision internally of the plunger for the hub after retraction, the holding provision comprising a part deflectable internally of the hollow plunger and into obstruction of any return of the retracted hub. Preferably, any such return will cause further obstructing deflection of said part.
  • Such part may be integrally formed with the plunger, say as a tongue formation displaceable from walling of the plunger.
  • tongue formation may be as a localised thinning and partial separation of walling of the plunger, say remaining connected to such walling only at an end that is downstream relative to contents expression movement of the plunger .
  • deflectable part is deflected into hub return obstruction before hub retraction, and another opposite partial deflection is required as a latching action at end of hub retraction.
  • This successively opposite deflection action can be achieved by way of first deflection by a bump formation spaced from origin, axis or hinge for first deflection and second deflection with said bump formation as origin, axis or hinge therefor.
  • bump formation may further advantageously be fixed preferably integral with the deflectable part.
  • Figure 1 is a longitudinal axial sectional view through a syringe-type hollow-needle device 100 with plunger end-sealing as taught herein;
  • Figure 2 is a cross section at X-X of Figure 1;
  • Figure 3 is a scrap section showing plunger formation for the purposes hereof ;
  • Figures 4A and 4B are scrap sections showing plunger/ outer body part cooperation and hub latching, respectively.
  • the hollow-needle syringe-type device 100 has an advantageously one-piece moulded outer body part of elongate hollow conveniently circular cylindrical form that presents a main chamber 101 within which a hollow plunger 105 is sealingly slidable, a forward or extension chamber 110 to a hollow-needle exit nose 111 and housing a retraction spring 112; and internal deflectable arm-type latching formations 115 to hold a needle-carrying hub 120 until released by deflection for needle retraction when engaged by end 106 of the plunger 105.
  • the device 100 is generally as disclosed in published PCT patent specification No WO 92/18187, including convenient outer body part steppings shown at 113 from the main chamber 101 to the forward or extension chamber 110 and at 114 from the latter to the nose 111, and end grip flanging 107 to cooperate with end flanging 108 of the plunger 105.
  • Inner end formation of the plunger 105 includes outer peripheral bead 105B that can usefully make a direct sliding seal in compressive engagement by interior of the main chamber 101, and is end-tapered at 105T to cooperate with end-tapering 115T to inward latching teeth 116 at ends of the deflectable arms 115.
  • the arms 115 are shown extending from tapered stepping 113 in localised accommodations 117 between reductions 118 of the outer body part, and the teeth 116 capture head 12OH of top-hat or T- section needle-carrying hub 120 with retraction spring 112 held retracted about stem 120S of the hub 120.
  • the plunger 105 is preferably latched when fully entrant the outer body part, see cooperating rib and groove formations 123, 124.
  • Positive latching provision 140 for latching the hub afer retraction is shown involving at least one tongue formation 141 in walling 142 of the plunger 105.
  • the walling 142 is generally thinned at the tongue formation 143 and mostly separated therefrom at 144 to remain connected only at one end 145.
  • the separated opposite end 146 is spaced from closed flange-bearing end 147 of the plunger by more than enough to accommodate at least the head 121 of the needle-carrying hub 120.
  • a rectangular tongue formation 141 would thus be separated 144 from the plunger walling 142 over three sides and connected 145 only at the fourth side.
  • the tongue formation 141 has a medial outer bump formation 148 shown nearer its connected end 145 than its free end 146, and this bump formation 148 extends beyond unthinned thickness of the plunger walling 142.
  • the bump formation 148 will engage inner surface of walling of the outer body part and the tongue formation 141 will be deflected about origin, axis or hinge at 145 and into interior of the hollow plunger 105. This deflection will take the free end 146 of the tongue formation 141 into obstructive relation to the needle-carrying hub head 121.
  • the needle-carrying hub 120 At end of such contents expression sroke of the plunger 105, the needle-carrying hub 120 will be released and spring-driven into the plunger 105. When it reaches the deflected tongue formation 141, there will be a further and separate deflection of the tongue formation 141 this time with the bump formation 148 as origin, axis or hinge. Thereafter, of course, the needle-carrying hub head 121 will be positively latched and captured by the free end 146 of the tongue formation 141, and would be further deflected into such obstruction by any return movement of the hub 120.

Abstract

Hollow-needle device (100) comprises a hollow plunger (105), a body part affording a cylindrical chamber (101) within which the plunger (105) is sealingly slidable, a hollow-needle carrying hub (120) for automatic retraction into the plunger (105), and a holding provision (140) internally of the plunger (105) for the hub (120) after retraction. The holding provision (140) comprises a part (141) deflectable internally of the hollow plunger (105) and into obstruction of return of the retracted hub (120).

Description

TITLE : HOLLO -NEEDLE DEVICES
DESCRIPTION
FIELD OF INVENTION
This invention relates to hollow-needle devices such as hypodermic syringes and body fluid samplers; and has particular relevance to such devices with provision for automatic full retraction of the hollow-needle after use for device contents expression, usually after a single such use. BACKGROUND TO INVENTION
Our PCT Application No. GB92/00652 concerns such devices where needle retraction involves entry of a needle- carrying hub into hollow interior of a plunger capable of serving for device contents expression through the needle. It has always been seen as desirable further to protect against re-use by providing friction grip formations at the inner end of the interior of the plunger as fins, ribs or flats to receive and hold the needle-carrying hub after spring driven retraction. There is a risk of this being defeated by sharp shocks applied to its end.
It is an object of this invention to provide a yet more positive such protection, preferably further resisting dismantling and re-assembly. SuTVIMARY OF INVENTION
According to this invention, there is provided a hollow-needle device comprising a hollow plunger, a body part affording a cylindrical chamber within which the plunger is sealingly slidable, a hollow-needle carrying hub for automatic retraction into the plunger, and a holding provision internally of the plunger for the hub after retraction, the holding provision comprising a part deflectable internally of the hollow plunger and into obstruction of any return of the retracted hub. Preferably, any such return will cause further obstructing deflection of said part.
Such part may be integrally formed with the plunger, say as a tongue formation displaceable from walling of the plunger. Such tongue formation may be as a localised thinning and partial separation of walling of the plunger, say remaining connected to such walling only at an end that is downstream relative to contents expression movement of the plunger .
Advantage arises if such deflectable part is deflected into hub return obstruction before hub retraction, and another opposite partial deflection is required as a latching action at end of hub retraction. This successively opposite deflection action can be achieved by way of first deflection by a bump formation spaced from origin, axis or hinge for first deflection and second deflection with said bump formation as origin, axis or hinge therefor. Such bump formation may further advantageously be fixed preferably integral with the deflectable part. BRIEF DESCRIPTION OF DRAWINGS
Specific examplary implementation for the invention is now described and shown in the accompanying drawing, in which:
Figure 1 is a longitudinal axial sectional view through a syringe-type hollow-needle device 100 with plunger end-sealing as taught herein; Figure 2 is a cross section at X-X of Figure 1;
Figure 3 is a scrap section showing plunger formation for the purposes hereof ; and
Figures 4A and 4B are scrap sections showing plunger/ outer body part cooperation and hub latching, respectively. ILLUSTRATED EMBODIMENT
Referring first to Figures 1 and 2, the hollow-needle syringe-type device 100 has an advantageously one-piece moulded outer body part of elongate hollow conveniently circular cylindrical form that presents a main chamber 101 within which a hollow plunger 105 is sealingly slidable, a forward or extension chamber 110 to a hollow-needle exit nose 111 and housing a retraction spring 112; and internal deflectable arm-type latching formations 115 to hold a needle-carrying hub 120 until released by deflection for needle retraction when engaged by end 106 of the plunger 105. The device 100 is generally as disclosed in published PCT patent specification No WO 92/18187, including convenient outer body part steppings shown at 113 from the main chamber 101 to the forward or extension chamber 110 and at 114 from the latter to the nose 111, and end grip flanging 107 to cooperate with end flanging 108 of the plunger 105.
Inner end formation of the plunger 105 includes outer peripheral bead 105B that can usefully make a direct sliding seal in compressive engagement by interior of the main chamber 101, and is end-tapered at 105T to cooperate with end-tapering 115T to inward latching teeth 116 at ends of the deflectable arms 115. The arms 115 are shown extending from tapered stepping 113 in localised accommodations 117 between reductions 118 of the outer body part, and the teeth 116 capture head 12OH of top-hat or T- section needle-carrying hub 120 with retraction spring 112 held retracted about stem 120S of the hub 120. Engagement of the end-tapering 105T of the plunger 105 with end- tapering 115T of the arms 115 deflects the arms 115 into sufficient spacing 117S in accomodations 117 to release the hub 120 for retraction forced by the spring 112 through end seal 130 of the hollow plunger 105 into its interior 109 complete with needle 121 in fixed relation with through- bore 122 of the hub 120. The plunger 105 is preferably latched when fully entrant the outer body part, see cooperating rib and groove formations 123, 124.
Positive latching provision 140 for latching the hub afer retraction is shown involving at least one tongue formation 141 in walling 142 of the plunger 105. Specifically, the walling 142 is generally thinned at the tongue formation 143 and mostly separated therefrom at 144 to remain connected only at one end 145. The separated opposite end 146 is spaced from closed flange-bearing end 147 of the plunger by more than enough to accommodate at least the head 121 of the needle-carrying hub 120. A rectangular tongue formation 141 would thus be separated 144 from the plunger walling 142 over three sides and connected 145 only at the fourth side.
The tongue formation 141 has a medial outer bump formation 148 shown nearer its connected end 145 than its free end 146, and this bump formation 148 extends beyond unthinned thickness of the plunger walling 142. As the plunger 105 approaches end of its contents expression stroke, the bump formation 148 will engage inner surface of walling of the outer body part and the tongue formation 141 will be deflected about origin, axis or hinge at 145 and into interior of the hollow plunger 105. This deflection will take the free end 146 of the tongue formation 141 into obstructive relation to the needle-carrying hub head 121. At end of such contents expression sroke of the plunger 105, the needle-carrying hub 120 will be released and spring-driven into the plunger 105. When it reaches the deflected tongue formation 141, there will be a further and separate deflection of the tongue formation 141 this time with the bump formation 148 as origin, axis or hinge. Thereafter, of course, the needle-carrying hub head 121 will be positively latched and captured by the free end 146 of the tongue formation 141, and would be further deflected into such obstruction by any return movement of the hub 120.

Claims

1. Hollow-needle device comprising a hollow plunger, a body part affording a cylindrical chamber within which the plunger is sealingly slidable, a hollow-needle carrying hub for automatic retraction into the plunger, and a holding provision internally of the plunger for the hub after retraction, the holding provision comprising a part deflectable internally of the hollow plunger and into obstruction of return of the retracted hub.
2. Hollow-needle device according to claim 1, wherein any such return will cause further obstructing deflection of said deflectable part.
3. Hollow-needle device according to claim 1 or claim 2, wherein said deflectable part is integral with the plunger.
4. Hollow-needle device according to claim 3, wherein said integral deflectable part is a tongue formation displaceable from walling of the plunger.
5. Hollow-needle device according to claim 4, wherein said tongue formation is a localised thinning and partial separation of walling of the plunger.
6. Hollow-needle device according to claim 4 or claim 5, wherein said tongue formation is connected to said plunger walling only at an end that is downstream relative to contents expression movement of the plunger.
7. Hollow-needle device according to any preceding claim, wherein said deflectable part has a first deflection into hub return obstruction before hub retraction, and another opposite partial deflection as a latching action at end of hub retraction.
8. Hollow-needle device according to claim 7, comprising, for successive opposite deflections of said part, a bump formation spaced from origin for first deflection and serving as origin for second deflection.
9. Hollow-needle device according to claim 8, wherein said bump formation is fixed with the deflectable part.
10. Hollow-needle device according to claim 8, wherein said bump formation is integral with the deflectable part.
PCT/GB2000/004456 1999-11-24 2000-11-23 Hollow-needle devices WO2001037908A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU15336/01A AU1533601A (en) 1999-11-24 2000-11-23 Hollow-needle devices

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9927715.4A GB9927715D0 (en) 1999-11-24 1999-11-24 Hollow-needle devices
GB9927715.4 1999-11-24

Publications (1)

Publication Number Publication Date
WO2001037908A1 true WO2001037908A1 (en) 2001-05-31

Family

ID=10865017

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/004456 WO2001037908A1 (en) 1999-11-24 2000-11-23 Hollow-needle devices

Country Status (3)

Country Link
AU (1) AU1533601A (en)
GB (1) GB9927715D0 (en)
WO (1) WO2001037908A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1291029A1 (en) * 2001-09-10 2003-03-12 Sergio Restelli Automatic safety syringe
US8162887B2 (en) 2004-06-23 2012-04-24 Abbott Biotechnology Ltd. Automatic injection devices
US8636704B2 (en) 2009-04-29 2014-01-28 Abbvie Biotechnology Ltd Automatic injection device
US8679061B2 (en) 2006-06-30 2014-03-25 Abbvie Biotechnology Ltd Automatic injection device
US8708968B2 (en) 2011-01-24 2014-04-29 Abbvie Biotechnology Ltd. Removal of needle shields from syringes and automatic injection devices
US8758301B2 (en) 2009-12-15 2014-06-24 Abbvie Biotechnology Ltd Firing button for automatic injection device
US9180244B2 (en) 2010-04-21 2015-11-10 Abbvie Biotechnology Ltd Wearable automatic injection device for controlled delivery of therapeutic agents
US9265887B2 (en) 2011-01-24 2016-02-23 Abbvie Biotechnology Ltd. Automatic injection devices having overmolded gripping surfaces
US10806867B2 (en) 2011-01-24 2020-10-20 E3D Agricultural Cooperative Association Ltd. Injector

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4927414A (en) * 1987-04-29 1990-05-22 Kulli John C Syringe with safety retracting needle
US5211629A (en) * 1991-12-23 1993-05-18 Pressly William B S Safety syringe
US5407436A (en) * 1991-04-11 1995-04-18 Safe-T-Limited Of Laurel House Syringe with retractable needle
EP0680767A1 (en) * 1994-05-06 1995-11-08 Nardino Righi Non-reusable safety syringe
NL9401003A (en) * 1994-06-20 1996-02-01 Michael Hendrik Blommaert Injection needle
US5531694A (en) * 1993-08-31 1996-07-02 Clemens; Anton H. Needle retraction system
WO2000048651A1 (en) * 1999-02-18 2000-08-24 Syringe Development Partners L.L.C. Interchangeable needle safety syringe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4927414A (en) * 1987-04-29 1990-05-22 Kulli John C Syringe with safety retracting needle
US5407436A (en) * 1991-04-11 1995-04-18 Safe-T-Limited Of Laurel House Syringe with retractable needle
US5211629A (en) * 1991-12-23 1993-05-18 Pressly William B S Safety syringe
US5531694A (en) * 1993-08-31 1996-07-02 Clemens; Anton H. Needle retraction system
EP0680767A1 (en) * 1994-05-06 1995-11-08 Nardino Righi Non-reusable safety syringe
NL9401003A (en) * 1994-06-20 1996-02-01 Michael Hendrik Blommaert Injection needle
WO2000048651A1 (en) * 1999-02-18 2000-08-24 Syringe Development Partners L.L.C. Interchangeable needle safety syringe

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6673044B2 (en) 2001-09-10 2004-01-06 Nardino Righi Automatic safety syringe
EP1291029A1 (en) * 2001-09-10 2003-03-12 Sergio Restelli Automatic safety syringe
US9017287B2 (en) 2004-06-23 2015-04-28 Abbvie Biotechnology Ltd Automatic injection devices
US8162887B2 (en) 2004-06-23 2012-04-24 Abbott Biotechnology Ltd. Automatic injection devices
US8679061B2 (en) 2006-06-30 2014-03-25 Abbvie Biotechnology Ltd Automatic injection device
US9486584B2 (en) 2006-06-30 2016-11-08 Abbvie Biotechnology Ltd. Automatic injection device
US9561328B2 (en) 2009-04-29 2017-02-07 Abbvie Biotechnology Ltd Automatic injection device
US8636704B2 (en) 2009-04-29 2014-01-28 Abbvie Biotechnology Ltd Automatic injection device
US8758301B2 (en) 2009-12-15 2014-06-24 Abbvie Biotechnology Ltd Firing button for automatic injection device
US9180244B2 (en) 2010-04-21 2015-11-10 Abbvie Biotechnology Ltd Wearable automatic injection device for controlled delivery of therapeutic agents
US9821117B2 (en) 2010-04-21 2017-11-21 Abbvie Biotechnology Ltd Wearable automatic injection device for controlled delivery of therapeutic agents
US9265887B2 (en) 2011-01-24 2016-02-23 Abbvie Biotechnology Ltd. Automatic injection devices having overmolded gripping surfaces
US9339610B2 (en) 2011-01-24 2016-05-17 Abbvie Biotechnology Ltd Removal of needle shield from syringes and automatic injection devices
US8708968B2 (en) 2011-01-24 2014-04-29 Abbvie Biotechnology Ltd. Removal of needle shields from syringes and automatic injection devices
US9878102B2 (en) 2011-01-24 2018-01-30 Abbvie Biotechnology Ltd. Automatic injection devices having overmolded gripping surfaces
US10022503B2 (en) 2011-01-24 2018-07-17 Abbvie Biotechnology Ltd Removal of needle shield from syringes and automatic injection devices
US10806867B2 (en) 2011-01-24 2020-10-20 E3D Agricultural Cooperative Association Ltd. Injector
US11565048B2 (en) 2011-01-24 2023-01-31 Abbvie Biotechnology Ltd. Automatic injection devices having overmolded gripping surfaces

Also Published As

Publication number Publication date
AU1533601A (en) 2001-06-04
GB9927715D0 (en) 2000-01-19

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