Blood Vessel Sizing Device
AssigneeSizer LLC
InventorRichard B. Park
Life of this patent
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Abstract
Medical devices and methods for determining the size of blood vessels are disclosed. In one implementation, a blood vessel sizing device is configured for placement on an area of skin of a patient. The device includes a plurality of radiopaque concentric-circle elements. In one implementation, a blood vessel sizing method includes placing a marker having a plurality of concentric-circle elements on the skin of a patient, imaging a blood vessel of the patient and the device, and comparing the imaged blood vessel to the imaged circles to determine the blood vessel size, the concentric-circle elements allowing a determination of size without errors of parallax.
Claims20
A method comprising:
- receiving data corresponding to a biological feature present in radiological image data;
- determining a dimensional property of the feature;
- identifying one or more elements from the image data corresponding to a plurality of radiopaque, concentric-circles of a sizing device positioned on an area of skin of a patient;
- identifying a dimensional property for each of the identified one or more elements;
- determining a longest axis of the identified elements;
- comparing the determined dimensional property of the feature to the identified one or more elements, along the determined longest axis;
- and
- converting the determined dimensional property of the feature into a true dimension value for communication to a user.
A sizing device, comprising:
- a planar base structure having a front surface and a back surface, wherein the base structure is:
- configured to be placed on a user's skin to capture a target area of a patient having a passageway;
- and
- substantially transparent to light with a wavelength in the visible spectrum;
- a plurality of radiopaque, concentric-circle elements positioned on the front surface of the base structure;
- a plurality of radiopaque symbols positioned on the base structure, wherein each symbol of the plurality of symbols represents a dimensional property of at least one of the concentric-circle elements, wherein the concentric-circle elements are configured to be detected by radiological imaging equipment to enable a determination of a size of the passageway without errors of parallax;
- and
- an adhesive layer on the back surface of the device configured to adhere the device to an area of skin of the patient.
Dependencies are inferred from the claim text.