AUTOINJECTION DEVICES
First Claim
1. An autoinjection device, comprising:
- a main body (10,12);
a drive mechanism (88,90) in said main body for being fired to expel a dose from a syringe (2-8) in use;
an actuating member (14) associated with said main body and moveable from a first position to a second position in which said mechanism is fired;
a locking member (16) associated with said actuating member (12) for preventing said actuating member reaching said second position when in a locked position, the locking member and the actuating member being relatively moveable between locked and unlocked positions when said actuating member is in said first position, wherein on moving said locking member to its unlocked position, and after moving said actuating member to its second position, return of said actuating member to its first position is accompanied by return of said locking member to its locked position.
1 Assignment
0 Petitions
Accused Products
Abstract
An autoinjection device has front and rear separable assemblies (10) and (12). The rear assembly contains a drive assembly which is triggered or unlatched by rearward movement of an actuating sleeve (14) extending from the front assembly. A locking dial (16) is provided which locks the actuating sleeve against rearward movement until the dial is moved to an unlocked position. The dial automatically returns to a locked position upon initial rearward movement of the actuating member (14), so that, when the actuating member (14) moves forwardly after completion of an injection, it locks out to shroud the needle of the autoinjection device. The docking dial can be made integral with the actuating member (14) in an alternative embodiment.
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Citations
20 Claims
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1. An autoinjection device, comprising:
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a main body (10,12); a drive mechanism (88,90) in said main body for being fired to expel a dose from a syringe (2-8) in use; an actuating member (14) associated with said main body and moveable from a first position to a second position in which said mechanism is fired; a locking member (16) associated with said actuating member (12) for preventing said actuating member reaching said second position when in a locked position, the locking member and the actuating member being relatively moveable between locked and unlocked positions when said actuating member is in said first position, wherein on moving said locking member to its unlocked position, and after moving said actuating member to its second position, return of said actuating member to its first position is accompanied by return of said locking member to its locked position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An autoinjection device, comprising:
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a main body (10,12); a drive mechanism (88,90) in said main body for being fired to expel a dose from a syringe (2-8) in use; an actuating member (14) associated with said main body and moveable from a first longitudinal position to a second longitudinal position in which said mechanism is fired; releasable locking means (50, 66) associated with said actuating member (14) for preventing said actuating member reaching said second position, the actuating member (14) being adjustable between locked and unlocked positions when said actuating member is in said first position, wherein on adjusting said actuating member to its unlocked position, and after moving said actuating member to its second position, return of said actuating member to its first position is accompanied by its return to its locked position. - View Dependent Claims (16, 17, 18)
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19. An autoinjection device comprising a main body having separable forward (10) and rearward (12) parts, the rearward part containing a drive mechanism (88,90) operated by a latch (92), and the forward part of said main body having an actuating member (14) extending forwardly of the body and adapted to be driven rearwardly into the body to release said latch when applied to an injection site and pressed.
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20. An autoinjection device comprising front (10) and rear (12) separable rear housing portions, the rear housing portion containing a drive mechanism including a drive energy store (88), a drive member (90) and a latch arrangement (92) to latch the drive member in a primed position for being unlatched for forward movement, the forward housing portion including an actuating member (14) having a needle shroud sleeve portion extending forwardly of the housing portion, the actuating member being moveable rearwardly to unlatch the drive member, and a syringe carrier (38) mounted on or in said actuating member for longitudinal movement with respect thereto.
Specification