Syringe devices and methods for mixing and administering medication
First Claim
1. A method of preparing a medication agent for administration to an individual, comprising:
- providing a syringe device comprising a syringe barrel having a forward end that is capped and a piston disposed at an initial position relative to the syringe barrel, the piston having a first end within the syringe barrel, an opposing second end, and having a unitary fluid passageway passing longitudinally through the piston, through the first end and through the second end;
providing a first component of a medicant within the syringe barrel;
providing a second component of a medicant within a vial disposed within a vial housing associated with the second end of the piston;
providing a valve associated with the fluid passageway, the fluid passageway providing fluid communication between the vial and the syringe barrel, the valve being initially provided in a closed position blocking fluid passage through the passageway;
repositioning the valve to allow fluid passage between the vial and the syringe barrel;
after repositioning the valve, sliding the piston in a first direction to join the first component with the second component within the vial;
mixing the first and second components to produce the medication agent by repeated sliding of the piston in opposing directions; and
drawing the medication agent into the syringe barrel, the syringe device being administration-ready through the first end of the syringe without removal of the vial from the device.
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Accused Products
Abstract
The invention includes a device having a chamber within a syringe. A fluid passageway extends through a syringe piston. A valve is associated with the passageway controlling fluid passage through the piston. The invention includes a piercing structure having a head segment and a body portion, with a channel through the body portion and through at least one surface of the head without passing through the tip. In another aspect the invention encompasses a method of preparing an agent for administration to an individual. A first component is provided within a syringe and a second component is provided within a vial. A closed valve is associated with a fluid passageway between the vial and the syringe barrel through a piston. Valve repositioning allows fluid passage and sliding of the piston joins the first and second components. Repeated sliding of the piston mixes the components to produce the medication agent.
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Citations
16 Claims
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1. A method of preparing a medication agent for administration to an individual, comprising:
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providing a syringe device comprising a syringe barrel having a forward end that is capped and a piston disposed at an initial position relative to the syringe barrel, the piston having a first end within the syringe barrel, an opposing second end, and having a unitary fluid passageway passing longitudinally through the piston, through the first end and through the second end; providing a first component of a medicant within the syringe barrel; providing a second component of a medicant within a vial disposed within a vial housing associated with the second end of the piston; providing a valve associated with the fluid passageway, the fluid passageway providing fluid communication between the vial and the syringe barrel, the valve being initially provided in a closed position blocking fluid passage through the passageway; repositioning the valve to allow fluid passage between the vial and the syringe barrel; after repositioning the valve, sliding the piston in a first direction to join the first component with the second component within the vial; mixing the first and second components to produce the medication agent by repeated sliding of the piston in opposing directions; and drawing the medication agent into the syringe barrel, the syringe device being administration-ready through the first end of the syringe without removal of the vial from the device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of preparing a medicant comprising:
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providing a mixing device comprising; a needleless syringe having a first end having an extension with a male fitting and a piston inserted within a second end; and an adaptor connected to a first end of the syringe, the adaptor comprising a first port, a second port consisting of a female fitting associated with the first end of the syringe, a third port associated with a vial, and a valve controlling fluid passage the ports; and flowing a liquid into the adaptor through the first port and into the syringe through the second port. - View Dependent Claims (15, 16)
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Specification