Owen Mumford Limited

Matthew David Farmer

Tahir Shabudin

Oliver Gould

Toby Cowe

Matthew John Dobson

Andrew Hung

Abiodun Falodi

Oliver Gareth Hyde

Timothy Muller

Kuiwei Zhang

Callum Davies

Parshia Moghadas

Lee Thomas Smith

Robert William Bruns

Robert Hall

Elizabeth MacDonald

Joe David Cowan

Medical injector

Testing device

Disclosed is an auto-injection apparatus for receiving a syringe, including: an outer casing enclosing a drive assembly and a syringe carrier configured to hold a barrel of the syringe, the syringe carrier being forward of the drive assembly and having stowed and delivery positions; an interlock extending between the syringe carrier and a syringe carrier housing at least partially surrounding the syringe carrier, the interlock preventing forward motion of the syringe carrier under the influence of an insertion actuator whilst in the stowed position. The drive assembly includes the insertion actuator for inserting a needle of the syringe into an injection site and a delivery actuator for driving a plunger into a barrel of the syringe which contains a substance for injection. The syringe carrier includes an interlock release mechanism which is configured to release the interlock such that the insertion actuator drives the syringe carrier forward.

Injection apparatus

An injection device is disclosed comprising a plunger for expressing medicament from a syringe and a delivery mechanism arranged in use to provide a forward biasing force to urge the plunger from a first rearward position to a second forward position to express a dose from the syringe. A latch arrangement is provided that releasably holds the plunger against the force of the delivery mechanism. The latch arrangement comprising at least two resilient segments which define opposing sections of an aperture within which a rearward end of the plunger is retained in the rearward position. A trigger is provided for releasing the plunger in use, the trigger being arranged to outwardly deflect at least one of the resilient segments such that the aperture is expanded to release the rearward end of the plunger. A method of manufacturing the injection device is also enclosed.

Injection device with safe trigger function

Medical instrument

Disclosed is an injection device for delivering a medicament from a syringe contained within a housing, the device being configured to move the syringe through the housing to cause insertion of a needle of the syringe into a user's skin and move a syringe bung through a syringe body, delivering medicament through the needle. The device includes: a plunger engaging the bung; a sleeve around the plunger; an insertion spring biasing the sleeve to the housing; and a delivery spring biasing the plunger to the sleeve. A release mechanism releases the sleeve from the housing to commence insertion and release the plunger from the sleeve, following insertion, delivering medicament. A velocity regulator regulates the plunger upon release and disengages during delivery, and includes a screw thread associated with the sleeve or plunger and one or more thread engaging members formed on the other of the sleeve and the plunger.

Injection device with deliver phase velocity regulator

Syringe

The invention relates to an injection device comprising an elongate housing and a cap removably mounted over a forward end of the housing. The cap comprising at least one slot extending forwardly from its rear edge; the at least one slot being configured to engage with an outwardly projecting protrusion on an outer surface of the housing when the cap is mounted on the housing. A rearward portion of the cap includes rearwardly extending engagement features provided on each side of the at least one slot, the engagement features being configured to locate within a cavity in the housing when the cap is mounted on the housing. The cavity is provided with corresponding surfaces which align with the cap engagement features so as to hold the outwardly projecting protrusion within the cut-out.

Injection devices

Syringe component

The invention provides an injection device for delivering a dose of medicament from a syringe. The injection device comprises a housing (), a plunger () moveably mounted within the housing, an actuation mechanism () arranged to provide a forward biasing force to urge the plunger forward in use to express a dose of medicament and a trigger mechanism () arranged to (directly or indirectly) releaseably hold the plunger against the force of the actuation mechanism. The injection device further comprises a plunger velocity regulator comprising a cam surface () associated with one of the housing or the plunger, and a cam member () associated with the other of the plunger or the housing and arranged to engage the cam surface during actuation movement of the plunger such that axial movement of the plunger relative to the housing causes relative rotational movement of the cam member and limits the forward velocity of the plunger movement.

Automatic injection device with plunger velocity regulator

An injection device () suitable for the delivery of a viscous medicament from a container () through a needle () disposed at the distal end of the container () is disclosed. The device comprises a housing (), an advancing mechanism () operable to move the container () relative to the housing from a starting position in which the needle () is shrouded and an insertion position in which the needle () is exposed, and a stopper drive arrangement operable to move a stopper () towards the distal end of the container (). The stopper drive arrangement comprises a drive body () arranged for axial movement with respect to the housing (), a driveshaft () arranged for rotation with respect to the drive body (), a plunger () arranged for axial movement with respect to the drive body () to move the stopper () upon rotation of the driveshaft (), and drive means () arranged to rotate the driveshaft () upon activation of the stopper drive arrangement.

Injection device

A substance delivery device for delivering a substance from a container includes a body, and a plunger movable with respect to the body so as to expel at least a portion of a substance from the container, a trigger mechanism, a latch member latched in a stationary position at least along the longitudinal axis of the device before use, and a lockout shroud movable along the longitudinal axis relative to the latch mechanism. User manipulation of the trigger mechanism causes the latch mechanism to become unlatched and move along the longitudinal axis and to cause movement of a plunger relative to the body, and in a first position of the lockout shroud along the longitudinal axis relative to the latch member, the lockout shroud prevents the trigger mechanism from unlatching the latch member, whereas in a second position the lockout shroud allows the trigger mechanism to unlatch the latch member.

Selectable dose injection device

Growing community of inventors

Oxfordshire, United Kingdom

Matthew David Farmer