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US 12,728,209 B2Granted
Syringes configured to inhibit forward plunger movement
AssigneeKurin, Inc.
InventorsKevin Nason, Jeffrey Veloz, Bobby E. Rogers, Nolan Leendert Pupping
Life of this patent
Estimating the term…
Abstract
Disclosed are systems that include a syringe having a barrel configured to hold a fluid and a plunger configured to draw the fluid into the barrel when the plunger is pulled backward through the barrel. The syringe is configured to inhibit forward movement of the plunger. For example, the systems can include mating pockets configured to engage barbs to inhibit forward movement of the plunger.
Claims23
A system comprising:
- a syringe comprising:
- a barrel configured to hold a fluid;
- and
- a plunger configured to draw the fluid into the barrel when the plunger is pulled backward through the barrel, the plunger including an interface having an open-ended cylinder with a collection needle and a sampling channel through the plunger, wherein the interface includes one or more mating pockets configured to engage one or more barbs to inhibit forward movement of the plunger,
- the syringe thereby being configured to inhibit forward movement of the plunger.
2 more elements
A system comprising:
- a syringe comprising:
- a barrel configured to hold a fluid;
- and
- a plunger configured to draw the fluid into the barrel when the plunger is pulled backward through the barrel, the plunger further comprising:
- a plunger seal;
- and
- a wedge at least partially inside the plunger seal and configured to inhibit forward movement of the plunger by increasing friction between the plunger seal and the barrel,
- the syringe thereby being configured to inhibit forward movement of the plunger.
5 more elements
A system comprising:
- a syringe comprising:
- a barrel configured to hold a fluid;
- and
- a plunger configured to draw the fluid into the barrel when the plunger is pulled backward through the barrel,
- a sampling channel from a tip of the syringe, through the plunger, to an interface having an open-ended cylinder with a collection needle;
- a barrel channel from the tip of the syringe into the barrel;
- and
- a check valve in communication with the barrel channel, the check valve configured to check forward expulsion of fluids from the barrel,
- the syringe thereby being configured to inhibit forward movement of the plunger.
6 more elements
A system comprising:
- a syringe comprising:
- a barrel configured to hold a fluid;
- and
- a plunger configured to draw the fluid into the barrel when the plunger is pulled backward through the barrel,
- a sampling channel from a tip of the syringe, through the plunger, to an interface having an open-ended cylinder with a collection needle;
- a barrel channel from the sampling channel into the barrel;
- and
- a check valve in communication with the barrel channel, the check valve configured to check forward expulsion of fluids from the barrel,
- the syringe thereby being configured to inhibit forward movement of the plunger.
6 more elements
Dependencies are inferred from the claim text.