Autoflush Syringe Method
First Claim
1. A method of using a two-chambered syringe, the method comprising:
- expelling a first liquid from a first chamber through a first chamber outlet by moving a first chamber seal within the first chamber, wherein a second chamber is connected to the first chamber seal and movably disposed with the first chamber seal within the first chamber;
moving a latching mechanism from a first position in which movement between the first chamber seal and a second chamber seal is prevented, to a second position in which movement between the first chamber seal and the second chamber seal is permitted; and
expelling a second liquid through a second chamber outlet and the first chamber outlet by moving the second chamber seal within the second chamber.
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Accused Products
Abstract
A two-chambered, sequentially injectable syringe is disclosed. The syringe has two concentric barrels, substantially cylindrical in shape. The outer barrel has an open end adapted for receiving an inner barrel/first piston. The inner barrel/first piston contains a flushing liquid. The syringe has a second piston slidably movable in the inner barrel and a latching mechanism that can alternate between a locked configuration and an unlocked configuration. In the locked configuration, the latching mechanism prevents the second piston from substantially all longitudinal movement relative to the inner barrel. In the unlocked configuration, the latching mechanism permits longitudinal motion of the second piston within the inner barrel.
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Citations
8 Claims
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1. A method of using a two-chambered syringe, the method comprising:
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expelling a first liquid from a first chamber through a first chamber outlet by moving a first chamber seal within the first chamber, wherein a second chamber is connected to the first chamber seal and movably disposed with the first chamber seal within the first chamber; moving a latching mechanism from a first position in which movement between the first chamber seal and a second chamber seal is prevented, to a second position in which movement between the first chamber seal and the second chamber seal is permitted; and expelling a second liquid through a second chamber outlet and the first chamber outlet by moving the second chamber seal within the second chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification