Genzyme Corporation

Dean Twite

Timothy Denyer

James Bradford

Alexander Hee-Hanson

Robert Wilson

Thomas Lever

A medicament delivery device has a needle, a body and a needle cover which is axially movable from an initial position to a holding position to a locked position in which the needle cover covers the distal end of the needle. The device has a biasing member configured to bias the needle cover distally, and a guide member configured to rotate relative to the needle cover. One of the guide member and the needle cover has a pin and the other of the guide member and the needle cover has a guide path for guiding the pin. The guide path has a first ramp, a second ramp and a locking abutment surface. When the needle cover is in the locked position then the locking abutment surface is configured to engage the pin to prevent the needle cover from moving proximally away from the locked position.

Medicament delivery device

A medicament delivery device comprises: a needle for injecting a medicament; a body; a needle cover axially movable relative to the body between an extended position and a retracted position; a needle cover biasing member configured to bias the needle cover distally; a medicament delivery mechanism; and a latch movable by the needle cover between an engaged configuration, in which the latch prevents delivery of the medicament, and a disengaged configuration, in which the latch allows delivery of the medicament, wherein the needle cover is configured such that: proximal movement of the needle cover from the extended position towards the retracted position moves the latch from the engaged configuration to the disengaged configuration; and distal movement of the needle cover from the retracted position towards the extended position moves the latch from the disengaged configuration to the engaged configuration.

A medicament delivery device includes: a body; a needle cover axially movable between an extended position and a retracted position; a medicament delivery mechanism including a plunger and a drive member configured to move the plunger to dispense a medicament; an actuation member configured to be actuated relative to the body; and a ratchet mechanism coupled to the medicament delivery mechanism and sequentially movable between a first configuration, second configuration and third configuration, wherein the actuation member and ratchet mechanism are arranged such that: a first actuation of the actuation member moves the ratchet mechanism from the first configuration to the second configuration to cause a first dose of the medicament to be dispensed, and a second actuation of the actuation member, subsequent to the first actuation, moves the ratchet mechanism from the second configuration to the third configuration to cause a second dose of the medicament to be dispensed.

A medicament delivery device has a needle for injecting medicament, a body and a needle cover. The needle cover is axially movable relative to a locked position in which the needle cover covers the distal end of the needle. The device has an inner housing with an aperture. A collar is located at least partially within the inner housing and is configured to rotate relative to the inner housing. The collar has one or more arms. A rotational member rotates the collar from a first position to a second position. When the needle cover is in the locked position and the collar is in the second position then the arm extends radially through the aperture and blocks proximal movement of the needle cover away from the locked position.

A medicament delivery device comprises a housing, a needle, a needle cover, a needle cover biasing member, and a needle cover retaining mechanism. The needle cover is axially movable between an extended position and a retracted position. The needle cover biasing member is configured to bias the needle cover axially in a distal direction towards the extended position. The needle cover retaining mechanism is configured to be moved between a first state, in which the needle cover retaining mechanism is disengaged from the needle cover such that the needle cover is moveable in the distal direction under a force of the needle cover biasing member, and a second state, in which the needle cover retaining mechanism is configured to engage the needle cover and prevent distal movement of the needle cover under the force of the needle cover biasing member, when the needle cover is in the retracted position.

The present disclosure relates to a medicament delivery device comprising a housing, a needle, a needle cover, a needle cover biasing member, a drive mechanism, and a needle cover extension mechanism. The needle cover is axially movable between an extended position and a retracted position. The needle cover biasing member is configured to bias the needle cover axially in the distal direction towards the extended position. The needle cover extension mechanism comprises a second biasing member and a release element. The second biasing member is configured to bias the needle cover into its extended position post-use of the device. The release element has a first state configured to prevent the second biasing member from biasing the needle cover into the extended position and a second state configured to allow the second biasing member to bias the needle cover into the extended position.

A medicament delivery device comprises a housing, a needle, a needle cover, a needle cover biasing member, a skin sensor, a skin sensor biasing member, and a retaining mechanism. The needle cover is axially movable between an extended position and a retracted position. The needle cover biasing member is configured to bias the needle cover towards the extended position. The skin sensor extends from the distal end of the needle cover and is configured to contact an injection site. The skin sensor biasing member is configured to bias the skin sensor from a proximal position to a distal position away from the needle cover. The retaining mechanism is configured to temporarily retain the needle cover in the retracted position and transfer at least a part of the force of the needle cover biasing member to the housing to prevent the needle cover biasing member from moving the needle cover distally.

Growing community of inventors

Melbourn, United Kingdom

Dean Twite