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1. WO2020065273 - INJECTION DEVICE

Publication Number WO/2020/065273
Publication Date 02.04.2020
International Application No. PCT/GB2019/052644
International Filing Date 20.09.2019
IPC
A61M 5/178 2006.01
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
A61M 5/28 2006.01
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
28Syringe ampoules or cartridges, i.e. ampoules or cartridges provided with a needle
A61M 5/315 2006.01
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
315Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod; Appliances on the rod for facilitating dosing
A61M 5/50 2006.01
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
50having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
CPC
A61M 2005/5033
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
50having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
5013Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
502for blocking the piston
5033by use of an intermediate blocking member positioned between the syringe barrel and the piston rod to prevent retraction of the latter, e.g. toothed clip placed on the piston rod
A61M 2005/5073
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
50having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
5066Means for preventing re-use by disconnection of piston and piston-rod
5073by breaking or rupturing the connection parts
A61M 2205/3317
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
2205General characteristics of the apparatus
33Controlling, regulating or measuring
3317Electromagnetic, inductive or dielectric measuring means
A61M 2205/332
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
2205General characteristics of the apparatus
33Controlling, regulating or measuring
332Force measuring means
A61M 2205/3576
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
2205General characteristics of the apparatus
35Communication
3576with non implanted data transmission devices, e.g. using external transmitter or receiver
A61M 2205/581
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
2205General characteristics of the apparatus
58Means for facilitating use, e.g. by people with impaired vision
581by audible feedback
Applicants
  • NORTON HEALTHCARE LIMITED [GB]/[GB]
Inventors
  • CLARKE, Christopher John
  • CORRIGAN, Joseph Peter
Priority Data
1815552.324.09.2018GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) INJECTION DEVICE
(FR) DISPOSITIF D'INJECTION
Abstract
(EN)
An injection device (10) comprising: a. a barrel (11) having a medicament reservoir (15) therein capable of fluid communication with a needle assembly (12) at a distal end thereof and sealed at a proximal end thereof with a stopper (14); and b. a plunger rod (20) having a distal rod end (22) which is couplable with said stopper (14), wherein, when the plunger rod is coupled to the stopper, forward axial movement of the plunger rod (20) causes forward axial movement of the stopper (14) coupled thereto into the medicament reservoir (15) in order to expel medicament through the needle assembly (12), and the plunger rod can be decoupled from the stopper by applying a rearward axial force on the plunger rod, said rearward axial decoupling force being less than a rearward axial force required to move the stopper (14) rearwardly with respect to the barrel (11).
(FR)
L'invention concerne un dispositif d'injection (10) comprenant : a. un corps de seringue (11) dans lequel se trouve un réservoir à médicament (15) apte à une communication fluidique avec un ensemble aiguille (12) au niveau d'une extrémité distale de celui-ci et scellé au niveau d'une extrémité proximale de celui-ci avec un bouchon (14) ; et b. une tige de piston (20) pourvue d'une extrémité de tige distale (22) qui peut être connectée audit bouchon (14). Selon l'invention, lorsque la tige de piston est connectée au bouchon, un mouvement axial vers l'avant de la tige de piston (20) provoque un mouvement axial vers l'avant du bouchon (14) connecté à celle-ci dans le réservoir à médicament (15) afin d'expulser le médicament à travers l'ensemble aiguille (12), et la tige de piston peut être déconnectée du bouchon par application d'une force axiale vers l'arrière sur la tige de piston, ladite force de découplage axial vers l'arrière étant inférieure à une force axiale arrière requise pour déplacer le bouchon (14) vers l'arrière par rapport au corps de seringue (11).
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