Auto-injector comprising a resettable releasing safety device
First Claim
1. An autoinjector comprising:
- a housing;
a receptacle for an active substance positioned in the housing;
a piston displaceable within the receptacle by spring force for expelling a dose of the active substance via an injection needle;
a transfer mechanism for transferring the spring force to at least one of the receptacle and piston;
a holding mechanism for holding the transfer mechanism;
a releasing mechanism for causing the holding mechanism to release the transfer mechanism, wherein the releasing mechanism is enabled by moving the releasing mechanism from a first position into a second position, and wherein the releasing mechanism releases the holding mechanism when it is moved from the second position to the first position, thereby releasing the transfer mechanism; and
a resetting mechanism for disengaging the releasing mechanism when the releasing mechanism is in the second position prior to delivery of the dose to enable the releasing mechanism to be moved back to the first position without releasing the holding mechanism.
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Accused Products
Abstract
An autoinjector including a housing, a receptacle for an active substance, which receptacle, together with a connected injection needle, is displaceable within the housing by spring force for inserting the injection needle into a patient, a piston displaceable within the receptacle by spring force for expelling the active substance, a transfer mechanism for transferring the spring force to the receptacle and/or to the piston, a holding mechanism for holding the transfer mechanism, a releasing mechanism for causing the holding mechanism to release the transfer mechanism when the releasing mechanism is moved from a first position into a second position, and a resetting mechanism for moving the releasing mechanism from the first position into the second position without during the move causing the transfer mechanism to be released.
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Citations
9 Claims
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1. An autoinjector comprising:
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a housing; a receptacle for an active substance positioned in the housing; a piston displaceable within the receptacle by spring force for expelling a dose of the active substance via an injection needle; a transfer mechanism for transferring the spring force to at least one of the receptacle and piston; a holding mechanism for holding the transfer mechanism; a releasing mechanism for causing the holding mechanism to release the transfer mechanism, wherein the releasing mechanism is enabled by moving the releasing mechanism from a first position into a second position, and wherein the releasing mechanism releases the holding mechanism when it is moved from the second position to the first position, thereby releasing the transfer mechanism; and a resetting mechanism for disengaging the releasing mechanism when the releasing mechanism is in the second position prior to delivery of the dose to enable the releasing mechanism to be moved back to the first position without releasing the holding mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification