Systems and methods for measuring geometric dimensions of a syringe and/or a plunger stopper
AssigneeAmgen Inc.
InventorsAndrew Gu, Moris Saravia, Rathi Harish, Abby Roulier, Silvio Santinelli, Shree Thoka
Life of this patent
Estimating the term…
Abstract
Systems and methods are provided for generating geometric dimensions of a syringe or a plunger stopper. The geometric dimensions may be based on an at least one image of at least a portion of the syringe or plunger stopper. Fixtures are provided for positioning the syringe or plunger stopper proximate an associated imaging device.
Claims26
A syringe fixture configured to align a central syringe axis of a syringe with respect to a central image axis of an imaging system, the syringe fixture comprising:
- a support block defining a V-shaped notch, a first planar support surface, and a second planar support surface,
- the first planar support surface having a first edge,
- the second planar support surface having a second edge, wherein at least a portion of the second edge conjoins at least a portion of the first edge, and wherein the second planar support surface is perpendicular to the first planar support surface;
- and
- a syringe securing mechanism coupled to the support block and configured to secure a syringe in a fixed position in the V-shaped notch such that the syringe occupies a first orientation when the support block is positioned on the first planar support surface and a second orientation perpendicular to the first orientation when the support block is positioned on the second planar support surface.
A system for measuring at least one geometric dimension of a syringe, the system comprising:
- a syringe imaging system having a central imaging axis and a stage planar surface;
- a syringe fixture including a support block and a first planar support surface, the syringe fixture configured to secure a syringe in a first orientation relative to the central imaging axis when the support block is positioned on the first planar support surface;
- an image sensor configured to capture a first image of at least a portion of the syringe when secured by the syringe fixture and positioned on the first planar surface;
- and
- one or more processors configured to generate at least one geometric measurement of the syringe based upon at least the first image.
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A method for measuring a geometric dimension of a syringe, the method comprising:
- securing a syringe in a syringe fixture;
- placing the syringe and syringe fixture in a first position on a stage planar surface of an imaging system, the syringe having a central syringe axis occupying a first predetermined orientation relative to a central image axis of the imaging system;
- acquiring, with an image sensor of the imaging system, at least one image of at least a portion of the syringe;
- and
- calculating, with a processor of the imaging system, at least a first geometric dimension of the syringe based on the at least one image.
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26-41. (canceled)
Dependencies are inferred from the claim text.