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US 11,229,750 B2Granted
Injection device
AssigneeVeloject, LLC
InventorsRobert E. Mayle, Jr., Erik J. Shahoian, Terrence C. Smith, Alexander Jasso
Life of this patent
Estimating the term…
Abstract
Apparatuses and methods for delivering a fluid, including a viscous fluid. These apparatuses may include a fluid reservoir, two or more piston chambers, a manifold, a delivery port, and a drive assembly and may be configured to inject either a predetermined amount of fluid or a continuous stream of fluid. These apparatuses may also be configured to switch between filling, injection and aspiration modes. These apparatuses may generally be hand-held and lightweight and may provide a significant mechanical advantage to the user.
Claims20
A device for injection of a fluid, the device comprising:
- a reservoir;
- a manifold comprising a plurality of check valves;
- a fill port fluidly connected to, or part of, the manifold;
- a first piston chamber fluidically connected to the manifold;
- a second piston chamber fluidically connected to the manifold;
- a drive assembly coupled to a first piston in the first piston chamber and a second piston in the second piston chamber;
- a delivery port fluidically connected to the manifold;
- a selector having a first position and a second position;
- and
- a spool within the manifold that is translationally coupled to the selector, so that:
- when the selector is in the first position, the delivery port is in fluid communication with the first piston chamber, the second piston chamber and the reservoir through the plurality of check valves so that as the drive assembly reciprocally drives the first piston and the second piston, fluid is alternately transferred from the reservoir and into the first piston chamber and the second piston chamber, and fluid is alternately driven from the second piston chamber and the first piston chamber and out of the delivery port, and
- when the selector is in the second position the reservoir is in fluid communication with the fill port.
9 more elements
A device for injection of a fluid, the device comprising:
- a reservoir;
- a manifold comprising a plurality of check valves;
- a fill port fluidly connected to, or part of, the manifold;
- a first piston chamber fluidically connected to the manifold;
- a second piston chamber fluidically connected to the manifold;
- a drive assembly coupled to a first piston in the first piston chamber and a second piston in the second piston chamber;
- a delivery port fluidically connected to the manifold;
- a selector having a first position, a second position, and a third position;
- and
- a spool within the manifold that is translationally coupled to the selector, so that:
- when the selector is in the first position, the delivery port is in fluid communication with the first piston chamber, the second piston chamber and the reservoir through the plurality of check valves so when that the drive assembly reciprocally drives the first piston and the second piston, fluid is alternately transferred from the reservoir and into the first piston chamber and the second piston chamber and fluid is alternately driven from the second piston chamber and the first piston chamber out of the delivery port in a continuous flow,
- when the selector is in the second position, the reservoir is in fluid communication with the fill port, and
- when the selector is in the third position, the delivery port is in fluid communication with the fill port, and the reservoir, the first piston chamber and the second piston chamber are not in fluid communication with the delivery port.
10 more elements
A device for injection of a fluid, the device comprising:
- a reservoir;
- a manifold comprising a plurality of check valves;
- a fill port fluidly connected to, or part of, the manifold;
- a first piston chamber fluidically connected to the manifold;
- a second piston chamber fluidically connected to the manifold;
- a drive assembly coupled to a first piston in the first piston chamber and a second piston in the second piston chamber;
- a delivery port fluidically connected to the manifold;
- a selector having a first position, a second position, and a third position;
- a spool within the manifold that is translationally coupled to the selector, so that:
- when the selector is in the first position, the spool is moved relative to the manifold so that the delivery port is in fluid communication with the first piston chamber, the second piston chamber and the reservoir through the plurality of check valves so that when that the drive assembly reciprocally drives the first piston and the second piston, fluid is alternately transferred from the reservoir and into the first piston chamber and the second piston chamber and fluid is alternately driven from the second piston chamber and the first piston chamber out of the delivery port in a continuous flow,
- when the selector is in the second position, the spool is moved so that the reservoir is in fluid communication with the fill port, and
- when the selector is in the third position, the spool is moved relative to the manifold so that the delivery port is in fluid communication with the fill port, and the reservoir, the first piston chamber and the second piston chamber are not in fluid communication with the delivery port;
- a pressure sensor within the manifold;
- and
- an indictor configured to emit one or more alerts when the pressure sensor detects a pressure greater than a first threshold value or less than a second threshold value.
12 more elements
Dependencies are inferred from the claim text.