Protected injection syringe device
2 Assignments
0 Petitions
Accused Products
Abstract
The device comprises a syringe (10, 11, 12) and safety means comprising a protective sheath (16) capable of adopting, relative to the syringe body, both an injection configuration in which the syringe needle (11) projects beyond said sheath, and a protection configuration in which the needle extends inside the sheath. The device includes a trigger member (30) enabling it to pass from the injection configuration to the protection configuration at the end of the injection stroke. It comprises means (34) for defining a first end-of-injection-stroke situation in which the trigger member (30) is unsuitable for causing the device to pass from the injection configuration to the protection configuration, and a second end-of-injection-stroke situation in which such passage is possible.
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Citations
31 Claims
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1-14. -14. (canceled)
- 15. A safe injection device comprising a syringe having a syringe body, a needle, and a piston suitable for moving in the body to perform an injection, and a protective sheath, the syringe body and the protective sheath being suitable for sliding relative to each other between an injection configuration in which the needle projects beyond the protective sheath which is disposed around the syringe body, and a protection configuration in which the needle extends inside said sheath, the device including a trigger member suitable for causing the device to pass from the injection configuration to the protection configuration at the end of the injection stroke, the trigger member being secured to an actuator head of the piston, the device comprising an inhibitor member suitable for occupying an inhibit position in which said inhibitor member defines a first end-of-injection-stroke position for the piston in which the trigger member is unable to cause the device to pass from the injection configuration to the protection configuration, and the inhibitor member is suitable for being moved from said inhibit position to enable the piston to reach a second end-of-injection-stroke position in which the trigger member is able to cause the device to pass from the injection configuration to the protection configuration, wherein in the inhibit position, the inhibitor member is connected to the actuator head of the piston, being constrained to move therewith and is suitable for co-operating in abutment with an element of the device that is stationary relative to the syringe body to define the first end-of-injection-stroke position, and the inhibitor member is suitable for being separated from the piston to enable the second end-of-injection-stroke position to be reached.
- 17. A safe injection device comprising a syringe having a syringe body, a needle, and a piston suitable for moving in the body to perform an injection, and a protective sheath, the syringe body and the protective sheath being suitable for sliding relative to each other between an injection configuration in which the needle projects beyond the protective sheath which is disposed around the syringe body, and a protection configuration in which the needle extends inside said sheath, the device including a trigger member suitable for causing the device to pass from the injection configuration to the protection configuration at the end of the injection stroke, the trigger member being secured to an actuator head of the piston, the device comprising an inhibitor member suitable for occupying an inhibit position in which said inhibitor member defines a first end-of-injection-stroke position for the piston in which the trigger member is unable to cause the device to pass from the injection configuration to the protection configuration, and the inhibitor member is suitable for being moved from said inhibit position to enable the piston to reach a second end-of-injection-stroke position in which the trigger member is able to cause the device to pass from the injection configuration to the protection configuration, wherein in the inhibit position, the inhibitor member is connected to the actuator head of the piston, being constrained to move therewith and is suitable for co-operating in abutment with an element of the device that is stationary relative to the syringe body to define the first end-of-injection-stroke position, and the inhibitor member is suitable for being displaced relative to the piston to enable the second end-of-injection-stroke position to be reached.
- 19. A safe injection device comprising a syringe having a syringe body, a needle, and a piston suitable for moving in the body to perform an injection, and a protective sheath, the syringe body and the protective sheath being suitable for sliding relative to each other between an injection configuration in which the needle projects beyond the protective sheath which is disposed around the syringe body, and a protection configuration in which the needle extends inside said sheath, the device including a trigger member suitable for causing the device to pass from the injection configuration to the protection configuration at the end of the injection stroke, the device including means for defining a first end-of-injection-stroke situation in which the trigger member is unable to cause the device to pass from the injection configuration to the protection configuration, and a second end-of-injection-stroke situation in which the trigger member is able to cause the device to pass from the injection configuration to the protection configuration, the trigger member being constrained to move with the piston, and said first and second end-of-injection-stroke situations corresponding respectively to first and second end-of-injection-stroke positions for the piston, the device including a housing in which a head of the piston is substantially retracted in the second end-of-injection-stroke position, whereas, in the first end-of-injection-stroke position, the piston head projects beyond said housing to provide a purchase enabling the piston to be pulled away from the needle.
- 27. A safe injection device comprising a syringe having a syringe body, a needle, and a piston suitable for moving in the body to perform an injection, and a protective sheath, the syringe body and the protective sheath being suitable for sliding relative to each other between an injection configuration in which the needle projects beyond the protective sheath which is disposed around the syringe body, and a protection configuration in which the needle extends inside said sheath, the device including a trigger member suitable for causing the device to pass from the injection configuration to the protection configuration at the end of the injection stroke, the trigger member being formed by a skirt secured to the piston head, the device including an inhibitor member formed by a part that, in an inhibit position, is fitted on the head of the piston and presents an end suitable for coming into abutment against an element that is stationary relative to the syringe body in order to define a first end-of-injection-stroke position for the piston in which the skirt is unable to cause the device to pass from the injection configuration to the protection configuration, and that is suitable for being separated from the head of the piston in order to enable a second end-of-injection-stroke position of the piston to be reached in which the skirt is able to cause the device to pass from the injection configuration to the protection configuration.
- 29. A safe injection device comprising a syringe having a syringe body, a needle, and a piston suitable for moving in the body to perform an injection, and a protective sheath, the syringe body and the protective sheath being suitable for sliding relative to each other between an injection configuration in which the needle projects beyond the protective sheath which is disposed around the syringe body, and a protection configuration in which the needle extends inside said sheath, the device including a trigger member suitable for causing the device to pass from the injection configuration to the protection configuration at the end of the injection stroke, the device including means for defining a first end-of-injection-stroke situation in which the trigger member is unable to cause the device to pass from the injection configuration to the protection configuration, and a second end-of-injection-stroke situation in which the trigger member is suitable for causing the device to pass from the injection configuration to the protection configuration, and the trigger member being connected to the piston and being suitable for being displaced relative thereto between a position suitable for triggering in which, at the end of the injection stroke of the piston said trigger member is able to cause the device to pass from the injection configuration to the protection configuration, and a position unsuitable for triggering in which, at the end of the injection stroke of the piston, the trigger member is unable to cause the device to pass from the injection configuration to the protection configuration.
Specification