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1. WO2016116614 - AN INJECTION NEEDLE ASSEMBLY FOR AN INJECTION DEVICE AND AN INJECTION DEVICE COMPRISING SUCH ASSEMBLY

Publication Number WO/2016/116614
Publication Date 28.07.2016
International Application No. PCT/EP2016/051369
International Filing Date 22.01.2016
IPC
A61M 5/20 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES 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
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
178Syringes
20Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61M 5/32 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES 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
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
178Syringes
31Details
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
CPC
A61M 2005/2013
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
178Syringes
20Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
2006Having specific accessories
2013triggering of discharging means by contact of injector with patient body
A61M 2005/206
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
178Syringes
20Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
206With automatic needle insertion
A61M 2005/2418
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
178Syringes
24Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
2418comprising means for damping shocks on ampoule
A61M 2005/247
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
178Syringes
24Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
2455with sealing means to be broken or opened
2466by piercing without internal pressure increase
247with fixed or steady piercing means, e.g. piercing under movement of ampoule
A61M 2005/3247
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
178Syringes
31Details
32Needles; Details of needles pertaining to their connection with syringe or hub
3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
321Means for protection against accidental injuries by used needles
3243being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
3245Constructional features thereof, e.g. to improve manipulation or functioning
3247Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
A61M 2005/3258
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
178Syringes
31Details
32Needles; Details of needles pertaining to their connection with syringe or hub
3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
321Means for protection against accidental injuries by used needles
3243being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
3257Semi-automatic sleeve extension, i.e. in which triggering of the sleeve extension requires a deliberate action by the user, e.g. manual release of spring-biased extension means
3258being compressible or compressed along the needle
Applicants
  • NOVO NORDISK A/S [DK]/[DK]
Inventors
  • BENITO, Modesto Javier Mora
  • HANSEN, Søren Kjellerup
  • THOMSEN, Helle Ravn
  • TRUE, Daniel Patrick Godskesen
Priority Data
15152219.022.01.2015EP
15203134.030.12.2015EP
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) AN INJECTION NEEDLE ASSEMBLY FOR AN INJECTION DEVICE AND AN INJECTION DEVICE COMPRISING SUCH ASSEMBLY
(FR) ENSEMBLE AIGUILLE D'INJECTION POUR UN DISPOSITIF D'INJECTION ET DISPOSITIF D'INJECTION COMPRENANT LEDIT ENSEMBLE
Abstract
(EN) An injection needle assembly (50) for an injection device, comprising: a) a needle cannula (3) attached to a needle hub (4) and defining a pointed tip at a free end (3a, 3b), and b) a needle cover (10, 10a, 10b) forming an axially extending elongated flexible enclosure accommodating the needle cannula (3). The needle cover (10, 10a, 10b) is configured to axially collapse and become penetrated by the needle cannula (3) when a penetration force is applied to the needle cover. The needle cover (10, 10a, 10b) defines a shaft section (11a) and a bulb section (11b). The shaft section (11a) encircles the needle cannula (3) and extends axially from the needle hub (4) to the bulb section (11b). The shaft section (11a) comprises a collapsible wall area (15) having wall thickness t1 less than a predefined wall thickness t1,lim to provide radial deformability for abutting contact with the needle cannula (3). The bulb section (11b) comprises a wall area (17a, 17b) having a wall thickness t2 being greater than said predefined wall thickness t1,lim, and further defines a central end wall area (20) having a wall thickness t3 smaller than the wall thickness t2. In an initial non-penetrated state, the needle cover (10, 10a, 10b) assumes a first configuration wherein the wall areas of the bulb section (11b) and the wall areas of the shaft section (11a) are spaced apart from the needle cannula (3).
(FR) La présente invention concerne un ensemble aiguille d'injection (50) pour un dispositif d'injection, comprenant : a) une canule d'aiguille (3) fixée à un pavillon d'aiguille (4) et définissant une extrémité pointue au niveau d'une extrémité libre (3a, 3b), et b) un étui protecteur d'aiguille (10, 10a, 10b) formant une enceinte flexible allongé s'étendant axialement recevant la canule d'aiguille (3). L'étui protecteur d'aiguille (10, 10a, 10b) est configuré pour s'affaisser axialement et être pénétré par la canule d'aiguille (3) lorsque une force de pénétration est appliquée à l'étui protecteur d'aiguille. L'étui protecteur d'aiguille (10, 10a, 10b) définit une section tige (11a) et une section ampoule (11b). La section tige (11a) encercle la canule d'aiguille (3) et s'étend axialement du pavillon d'aiguille (4) à la section ampoule (11b). La section tige (11a) comprend une zone de paroi pliable (15) présentant une épaisseur de paroi t1 inférieure à une épaisseur de paroi prédéfinie t1 ,lim pour fournir une déformabilité radiale permettant de buter en contact avec la canule d'aiguille (3). La section ampoule (11b) comprend une zone de paroi (17a, 17b) présentant une épaisseur de paroi t2 supérieure à ladite épaisseur de paroi prédéfinie t1 ,lim, et définit en outre une zone de paroi d'extrémité centrale (20) présentant une épaisseur de paroi t3 inférieure à l'épaisseur de paroi t2. Dans un état initial non pénétré, l'étui protecteur d'aiguille (10, 10a, 10b) adopte une première configuration dans laquelle les zones de paroi de la section ampoule (11b) et les zones de paroi de la section tige (11a) sont disposées à distance de la canule d'aiguille (3).
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