Flexible reservoir volume measurement system and method
AssigneeBecton, Dickinson and Company
InventorsEric SUN, Kai QIAN
Life of this patent
Estimating the term…
Abstract
Devices, systems, and methods convert linear displacement of expanding and contracting flexible reservoir into rotational displacement which can be correlated to volume of reservoir through numerical measurements. Sensor can comprises one or more components the rotational displacement of which can be correlated to the volume of the flexible reservoir through numerical measurements. Rotation can be converted into digital data indicative of measurement of volume of flexible reservoir. Medical devices for administering liquid drug therapy comprising a flexible reservoir can implement such devices, systems, or methodology.
Claims20
A system comprising:
- a flexible container for a medium;
- a sensor assembly configured with respect to the flexible container, wherein volume expansion of the container causes linear displacement of a linearly displaceable sensor component in a first direction and volume contraction of the container causes linear displacement of the linearly displaceable sensor component in a second direction opposite the first direction;
- and
- a module converting the linear displacement of the linearly displaceable sensor component into a measurable rotational displacement correlated to a volume of the container.
A method of detecting volume of a flexible medicament container, the method comprising:
- configured a sensor assembly with respect to a flexible medicament container, such that volume expansion of the flexible medicament container causes linear displacement of a linearly displaceable sensor component in a first direction and volume contraction of the container causes linear displacement of the linearly displaceable sensor component in a second direction opposite the first direction;
- converting the linear displacement of the linearly displaceable sensor component into a rotational displacement;
- measuring the rotational displacement;
- and
- correlating the measured rotational displacement to a volume of the medicament container.
Dependencies are inferred from the claim text.