Injection device
AssigneeOwen Mumford Limited
InventorTimothy Simon Evans
Life of this patent
Estimating the term…
Abstract
An injection device comprises a housing (101) to (104) containing a syringe (24). The contents of the syringe (24) are viewable through a window (14) in the mid-section (102) of the housing. The window (14) is concealed by a slideable shutter (12). The slideable shutter (12) is biased by a bias spring (22) which also biases an internal syringe carrier. Also disclosed is a reversible needle cap which operates initially to cap the front end of the housing and, upon removal thereof, pulls a needle sheath (30) off the syringe needle (26). The cap is designed to be reversible so that, after use, it can be reversed and reconnected to the housing to cover the exposed needle.
Claims14
An injection device comprising:
- an elongate housing for receiving a syringe or capsule, the housing having a window or viewing aperture through which contents of the syringe or capsule are selectably inspected before a delivery of a dose from the syringe or capsule;
- a shutter element movable between a revealing position in which said window or viewing aperture is visible and a concealing position in which said window or viewing aperture is concealed, and
- a bias element placing said shutter element in its concealing position,
- wherein when the syringe or capsule has been loaded into the injection device and prior to the delivery of the dose from the syringe or capsule, said shutter element is selectably retractable to the revealing position against an urging of the bias element to enable inspection of the contents of the syringe or capsule, and on release of the shutter element from its revealing position the bias element urges the shutter element to return to its concealing position.
An injection device comprising:
- an elongate housing for receiving a syringe or capsule, the housing having a window or viewing aperture through which contents of the syringe or capsule are selectably inspected before a delivery of a dose from the syringe or capsule;
- a shutter element movable longitudinally between a revealing position in which said window or viewing aperture is visible and a concealing position in which said window or viewing aperture is concealed;
- and
- a bias element urging said shutter element from the revealing position to the concealing position, said shutter element being selectively movable to the revealing position from the concealing position against the urging of the bias element,
- wherein when the syringe or capsule has been loaded into the injection device and prior to the delivery of the dose from the syringe or capsule, said shutter element is selectably retractable to the revealing position against an urging of the bias element to enable inspection of the contents of the syringe or capsule, and on release of the shutter element from its revealing position the bias element urges the shutter element to return to its concealing position.
An injection device comprising:
- a syringe in an elongate housing, the syringe having a needle enclosed within the housing, the housing having a viewing aperture through which contents of the syringe are selectably inspected before a delivery of a dose from the syringe;
- a shutter movable longitudinally between a revealing position in which said viewing aperture is visible and a concealing position in which said viewing aperture is concealed;
- and
- a bias element urging said shutter element to move from the revealing position to the concealing position,
- wherein when the syringe has been loaded into the injection device while the needle is enclosed within the housing and prior to the delivery of the dose from the syringe, said shutter is selectably retractable to the revealing position against an urging of the bias element to enable inspection of the contents of the syringe, and on release of the shutter element from its revealing position the bias element urges the shutter element to return to its concealing position.
Dependencies are inferred from the claim text.