Apparatus and kits for fluid infusion
Inventors
Piehl, Mark D. • Robertson, Galen C. • Hagler, John Tyler Willis • Titkemeyer, Robert W. • Feiler, Jr., Frederic C.
Assignees
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Publication Number
US-10391257-B2
Publication Date
2019-08-27
Expiration Date
Abstract
An infusion device includes a housing with an interior chamber sized and configured to hold at least a flange and plunger of a syringe, a trigger held by the housing, and a lever in communication with the trigger and including an upwardly extending cam with a cam path having an upper end. The cam is in communication with the flange of the syringe. In response to actuation of the trigger to dispense fluid from the syringe, the upper end of the cam travels upward above the syringe and longitudinally toward a dispensing end of the syringe to linearly translate the plunger of the syringe in a first direction to dispense fluid from the syringe. To refill fluid into the syringe, the upper end of the cam travels downward and longitudinally away from the dispensing end of the syringe to linearly translate the plunger in a second direction to intake fluid.
Core Innovation
An infusion device is described with a tubing set and an infusion delivery device that includes a valve, a syringe, inlet tubing, a housing, and a lid. The valve has a first end and a second end opposite the first end and is in selective fluid communication with the first end, and an inlet projects laterally from the valve body between the first end and the second end and is in selective fluid communication with the second end. The syringe is coupled to the valve such that the syringe body is axially aligned with the valve body.
The device places the syringe and the valve in a housing sized and configured to receive them, where the housing defines an interior chamber and receiving apertures. The housing includes a first receiving aperture and a second receiving aperture configured to receive complementary portions of the valve and the inlet, with the inlet projecting laterally from the housing. A lid coupled to the housing transitions between an open position and a closed position, and the lid defines receiving apertures that cooperate with the housing receiving apertures to retain the inlet and a valve end between the lid and the housing in the closed position.
A lid rotationally coupled to the housing for movement between open and closed positions is also described, where the lid and housing collectively form an enclosure around the syringe and the valve. The enclosure retains the valve via engagement with the side inlet and maintains the orientation of the valve and syringe relative to the housing and lid. Large bore tubing having an inner diameter greater than 3 mm and less than or equal to 6 mm is coupled to the inlet of the valve, and fluid can be drawn from a source through the tubing and the valve into a reservoir of the syringe and dispensed through the valve.
Claims Coverage
The partial content provides three independent claims covering device structures and one method coverage. Across these independent claims, the document emphasizes retaining a syringe and a valve, including a laterally projecting inlet, in a housing using a transitionable lid with cooperating apertures, and defines selective fluid communication paths for drawing and dispensing fluid, including large-bore tubing for a reservoir syringe flow path.
Housing and lid retention with laterally projecting valve inlet
An infusion device comprising a valve body with a first end, a second end opposite the first end and axially aligned, and an inlet projecting laterally from the valve body between the first end and the second end, in selective fluid communication with the second end; a syringe having an axially extending syringe body with a first end and an opposite second end with a plunger disposed in the syringe body, the first end of the syringe coupled to the second end of the valve body with the syringe body axially aligned with the first end and the second end of the valve body; an inlet tubing having a first end coupled to the inlet of the valve and a second end coupleable to a source of liquid; a housing sized and configured to receive the syringe and the valve body, the housing having an upper surface defining a first receiving aperture and a second receiving aperture, the first receiving aperture configured to receive at least one of the inlet of the valve body or the inlet tubing such that the inlet extends laterally from the housing, the second receiving aperture configured to receive the first end of the valve body such that the first end extends axially from the housing; and a lid coupled to the housing and configured to transition between an open position and a closed position, where the lid defines a first receiving aperture and a second receiving aperture that cooperate with corresponding receiving apertures of the housing to retain the inlet tubing or the inlet of the valve body and to retain the first end of the valve body between the lid and the housing when closed.
Rotationally coupled lid enclosing syringe and valve while maintaining orientation
An infusion device comprising a housing with an interior chamber sized and configured to simultaneously receive a syringe having a distal end and a valve having a first end, a second end, and a side inlet disposed between the first end and the second end, with the second end of the valve coupled to the distal end of the syringe; the housing defining a first aperture and a second aperture such that the first aperture receives the first end of the valve and the second aperture receives the side inlet of the valve; and a lid rotationally coupled to the housing for movement between an open position in which the syringe and valve can be moved laterally into engagement with the housing and a closed position in which the lid, the housing, and the valve collectively form an enclosure around the syringe, with the lid defining a first aperture and a second aperture configured to receive the first end and the side inlet of the valve and to retain the valve between the housing and the lid via engagement with the side inlet, thereby maintaining the orientation of the valve and the syringe relative to the housing and the lid.
Large bore tubing inner diameter range coupled to laterally projecting valve inlet and reservoir syringe dispensing
An infusion device comprising a valve with a first end, a second end in selective fluid communication with the first end, and an inlet projecting laterally from the valve between the first end and the second end; a syringe engaged with the first end of the valve such that the inlet of the valve projects laterally from a centerline of the syringe; large bore tubing having an inner diameter greater than 3 mm and less than or equal to 6 mm with a first end coupled to the inlet of the valve and a second end coupleable to a source of fluid, such that fluid can be drawn from the source through the large bore tubing, the inlet of the valve and the first end of the valve and into a reservoir of the syringe and dispensed from the reservoir through the first end of the valve and through the second end of the valve; a housing defining a first receiving aperture, a second receiving aperture, and an interior chamber configured to receive the second end of the valve and the inlet of the valve respectively, where the second end of the valve is at least partially disposed within the first receiving aperture and the inlet of the valve is at least partially disposed within the second receiving aperture; and a lid coupled to the housing and transitioning between an open position and a closed position, where the lid cooperates with the housing apertures to retain at least one of the large bore tubing or the inlet of the valve and to retain the second end of the valve between the lid and the housing when closed.
Overall, the independent claims define a housing-and-lid enclosure that cooperatively retains a laterally projecting inlet and valve end while receiving an axially aligned syringe, a rotationally coupled lid that encloses the syringe and valve while maintaining orientation relative to the housing, and a large-bore tubing configuration with a specified inner diameter range coupled to a laterally projecting valve inlet and a reservoir syringe with draw and dispense fluid flow through the valve.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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