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1. US20160067420 - Dispensing speed control mechanism and injection device

Office
United States of America
Application Number 14782745
Application Date 08.04.2014
Publication Number 20160067420
Publication Date 10.03.2016
Grant Number 09802001
Grant Date 31.10.2017
Publication Kind B2
IPC
A61M 5/315
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 5/20
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 5/24
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
24Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or cartridges, e.g. automatic
CPC
A61M 5/31551
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
315Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod ; or piston; Appliances on the rod for facilitating dosing ; ; Dosing mechanisms
31533Dosing mechanisms, i.e. setting a dose
31545Setting modes for dosing
31548Mechanically operated dose setting member
3155by rotational movement of dose setting member, e.g. during setting or filling of a syringe
31551including axial movement of dose setting member
A61M 5/20
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
A61M 5/24
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
A61M 5/31525
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
315Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod ; or piston; Appliances on the rod for facilitating dosing ; ; Dosing mechanisms
31525Dosing
A61M 5/31553
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
315Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod ; or piston; Appliances on the rod for facilitating dosing ; ; Dosing mechanisms
31533Dosing mechanisms, i.e. setting a dose
31545Setting modes for dosing
31548Mechanically operated dose setting member
3155by rotational movement of dose setting member, e.g. during setting or filling of a syringe
31553without axial movement of dose setting member
A61M 5/31558
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
315Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod ; or piston; Appliances on the rod for facilitating dosing ; ; Dosing mechanisms
31533Dosing mechanisms, i.e. setting a dose
31545Setting modes for dosing
31548Mechanically operated dose setting member
31556Accuracy improving means
31558using scaling up or down transmissions, e.g. gearbox
Applicants SANOFI
Inventors Daniel David Higgins
Matthew Jones
Joseph Butler
William Marsh
Agents Fish & Richardson P.C.
Priority Data 13163108 10.04.2013 EP
Title
(EN) Dispensing speed control mechanism and injection device
Abstract
(EN)

The present invention relates to a dispensing speed control mechanism for use in an injection device. The injection device may have a housing (10, 30, 40; 40′; 40″; 40′″) and a drive member (70), which is driven by a power reservoir (100, 100′) and axially movable between a dose setting position, in which the drive member (70) is rotationally constrained to the housing (10, 30, 40; 40′; 40″; 40′″), and a dose dispensing position, in which the drive member (70) is rotationally de-coupled from the housing (10, 30, 40; 40′; 40″; 40′″). The speed control mechanism comprises friction means (42) for retarding the drive member (70) during dose dispensing depending on the axial position of the drive member (70). Further, the invention relates to an injection device with such a dispensing speed control mechanism.