Spring driven adjustable oral syringe
First Claim
1. A syringe, the syringe comprising:
- a barrel assembly, the barrel assembly comprising;
a barrel having a distal end and a proximal end, a nozzle formed on the distal end of the barrel;
a barrel cap attached to the barrel at the proximal end of the barrel;
a plunger assembly at least partially disposed within the barrel, the plunger assembly comprising;
a shaft comprising;
two or more lengthwise ribs, each lengthwise ribs disposed along a circumference of the shaft, the lengthwise ribs defining one or more portions of the circumference; and
two or more radial fibs, each radial rib disposed between two or more of the lengthwise ribs, the radial ribs;
disposed in at least one portion of the circumference but not extending along a full circumference of the shaft; and
disposed lengthwise on the shaft between a distal and proximal ends of the shaft to provide a predetermined volume in the barrel when the radial rib contacts the barrel cap;
a plunger attached to the distal end of the shaft; and
a plunger cap attached to the proximal end of the shaft.
1 Assignment
0 Petitions
Accused Products
Abstract
Embodiments disclosed herein generally describe a medication delivery system. The medication delivery system includes a barrel, a plunger assembly, a dosage selection device, and a force producing element. The plunger assembly is disposed within the barrel. The force producing element can force the plunger assembly from the barrel. The user can select one or two or more dosages with a dosage selection device. The user selects the dosage; then the medication delivery system delivers the same dosage repeatedly. Further, with the force producing element, the user need only depress the plunger assembly into the barrel and does not need to extract the plunger assembly. This allows the user to use only one hand with the medication delivery system.
82 Citations
16 Claims
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1. A syringe, the syringe comprising:
- a barrel assembly, the barrel assembly comprising;
a barrel having a distal end and a proximal end, a nozzle formed on the distal end of the barrel;
a barrel cap attached to the barrel at the proximal end of the barrel;
a plunger assembly at least partially disposed within the barrel, the plunger assembly comprising;
a shaft comprising;
two or more lengthwise ribs, each lengthwise ribs disposed along a circumference of the shaft, the lengthwise ribs defining one or more portions of the circumference; and
two or more radial fibs, each radial rib disposed between two or more of the lengthwise ribs, the radial ribs;
disposed in at least one portion of the circumference but not extending along a full circumference of the shaft; and
disposed lengthwise on the shaft between a distal and proximal ends of the shaft to provide a predetermined volume in the barrel when the radial rib contacts the barrel cap;
a plunger attached to the distal end of the shaft; and
a plunger cap attached to the proximal end of the shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- a barrel assembly, the barrel assembly comprising;
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16. A syringe, the syringe comprising:
- a barrel assembly, the barrel assembly comprising;
a barrel having a distal end and a proximal end, a nozzle formed on the distal end of the barrel;
a barrel cap attached to the barrel at the proximal end of the barrel, the barrel cap including;
an opening formed in an interior portion of the barrel cap;
a detent formed in the opening at a proximal end of the barrel cap;
a plunger assembly at least partially disposed within the barrel, the plunger assembly comprising;
a shaft having two or more lengthwise ribs and two or more radial fibs, each radial rib disposed between two or more of the lengthwise ribs and between two or more of the lengthwise ribs at a location on the shaft to provide a predetermined volume in the barrel when the radial rib contacts the barrel cap;
a plunger attached to the distal end of the shaft;
a plunger cap attached to the proximal end of the shaft;
the plunger having a first position, in the barrel, where the plunger contacts at least a portion of the distal end of the barrel;
the plunger having a second position, in the barrel, where a first radial rib contacts the detent, the second position providing a first volume in the barrel; and
the plunger having a third position, in the barrel, where a second radial rib contacts the detent, the third position providing a second volume in the barrel.
- a barrel assembly, the barrel assembly comprising;
Specification