Blood vessel sizing device
First Claim
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1. A blood vessel sizing device, comprising:
- a planar base structure having a front surface and a back surface, wherein the base structure is;
configured to remain substantially rigid and planar when placed on a user'"'"'s skin to capture a target area of a patient having a vessel; and
substantially transparent to light having a wavelength in the visible spectrum;
a plurality of radiopaque, concentric-circle elements positioned on the base structure;
a plurality of radiopaque and machine-readable symbols positioned on the front surface of 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 vessel without errors of parallax; and
an adhesive layer on the back surface of the planar base structure, configured to adhere the device to an area of skin of the patient.
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Abstract
Medical devices and methods for determining the size of blood vessels are disclosed. In an embodiment, a blood vessel sizing device includes a marker configured for placement on the skin of a patient. The marker defines a substantially circular shape and includes a plurality of radiopaque substantially concentric circles. In an embodiment, a blood vessel sizing method includes placing a marker having a plurality of substantially concentric circles on the skin of a patient, imaging a blood vessel of the patient and the marker, and comparing the imaged blood vessel to the imaged circles to determine the blood vessel size.
38 Citations
20 Claims
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1. A blood vessel sizing device, comprising:
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a planar base structure having a front surface and a back surface, wherein the base structure is; configured to remain substantially rigid and planar when placed on a user'"'"'s skin to capture a target area of a patient having a vessel; and substantially transparent to light having a wavelength in the visible spectrum; a plurality of radiopaque, concentric-circle elements positioned on the base structure; a plurality of radiopaque and machine-readable symbols positioned on the front surface of 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 vessel without errors of parallax; and an adhesive layer on the back surface of the planar base structure, configured to adhere the device to an area of skin of the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A sizing device, comprising:
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a 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 an internal biological feature, wherein upon a proper placement, the back surface is facing a direction towards the skin and the front surface is facing a direction away from the skin; and substantially transparent to light having a wavelength in the visible spectrum; the sizing device further comprising; a plurality of radiopaque, concentric-circle elements; a plurality of radiopaque symbols, 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 biological feature without errors of parallax; and an adhesive layer on the back surface of the base structure, configured to adhere the device to an area of skin of the patient. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification