Patent classifications
A
HUMAN NECESSITIES
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A61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
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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
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5/00
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
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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
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A61M5/3205
Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
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A61M5/321
Means for protection against accidental injuries by used needles
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A61M5/3243
being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
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A61M5/326
Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user
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A61M2005/3261
triggered by radial deflection of the anchoring parts between sleeve and syringe barrel, e.g. spreading of sleeve retaining hooks having slanted surfaces by engagement with conically shaped collet of the piston rod during the last portion of the injection stroke of the plunger
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A61M2005/3263
Trigger provided at the distal end, i.e. syringe end for mounting a needle
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A61M2005/3263

SAFETY MECHANISM FOR A DRUG DELIVERY DEVICE
20250276132 · 2025-09-04 ·

A safety mechanism for a drug delivery device for dispensing a liquid drug from a reservoir through a needle includes a housing defining a longitudinal axis, a needle cover movable along the longitudinal axis between a needle covering position and a retracted position, a movable lock element with a locking position to prevent the needle cover from being moved out of the needle covering position, and a trigger member movable along the longitudinal axis relative to the housing. The trigger member is operatively coupled to the lock element and a movement of the trigger member along the longitudinal axis causes the lock element to move out of the locking position allowing the needle cover to be moved out of the needle covering position.