# US 10,244,966 B2 · Blood vessel sizing device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,244,966 B2 - Document ID: US10244966B2 - Status: Granted - Kind: B2 - Application number: 15/192,408 - Filed: 2016-06-24 - Published: 2016-10-20 - Granted: 2019-04-02 - Earliest claimed: 2012-03-22 - Assignees: Sizer Lllc - Applicants: Sizer LLC - Inventors: Richard B. Park - Web page: https://patentgrep.com/patent/US10244966B2 ## CPC - A61B 5/1075: {for measuring dimensions by non-invasive methods, e.g. for determining thickness of tissue layer (A61B8/0858 takes precedence)} - A61B 5/02007: {Evaluating blood vessel condition, e.g. elasticity, compliance} - A61B 6/504: {for diagnosis of blood vessels, e.g. by angiography} - A61B 6/5217: {extracting a diagnostic or physiological parameter from medical diagnostic data} - A61B 90/39: {Markers, e.g. radio-opaque or breast lesions markers} - A61B 90/96: using barcodes - G16H 50/30: for calculating health indices; for individual health risk assessment - A61B 2090/3966: {Radiopaque markers visible in an X-ray image} - A61B 2090/3991: {having specific anchoring means to fixate the marker to the tissue, e.g. hooks} - A61B 2562/164: the sensor is mounted in or on a conformable substrate or carrier - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA ## 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. ## Claims ### Claim 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. ### Claim 2 (depends on 1) The device of claim 1, wherein the symbols comprise a machine-readable barcode. ### Claim 3 (depends on 1) The device of claim 1, wherein the device is uniquely identified by a radiopaque and machine-readable unique identifier. ### Claim 4 (depends on 3) The device of claim 3, wherein the unique identifier is located on the base structure. ### Claim 5 (depends on 1) The device of claim 1, further comprising: a radiopaque location marker on the front surface of the base structure that is distinct from the concentric-circle elements and the symbols, the location marker being configured to aid in locating the device in a captured radiological image. ### Claim 6 (depends on 1) The device of claim 1, wherein each of the plurality of symbols represents a diameter of one of the plurality of concentric-circle elements. ### Claim 7 (depends on 1) The device of claim 1, wherein the plurality of symbols comprises a first portion configured to be detected during a first radiologic diagnostic procedure and a second portion configured to be detected during a second diagnostic procedure. ### Claim 8 (depends on 1) The device of claim 1, further comprising a plurality of non-radiopaque, concentric-circle elements positioned on the base structure. ### Claim 9 (depends on 1) The device of claim 1, further comprising: a deformable structure having a front surface and a back surface, the front surface of the deformable structure configured to be selectively adhered to the back surface of the base structure. ### Claim 10 (depends on 9) The device of claim 9, wherein the deformable structure comprises a sponge-like material. ### Claim 11 A sizing device, comprising: 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. ### Claim 12 (depends on 11) The device of claim 11, wherein the symbols are machine-readable. ### Claim 13 (depends on 11) The device of claim 11, wherein at least one symbol comprises a barcode. ### Claim 14 (depends on 11) The device of claim 11, wherein the device is uniquely identified by a unique identifier. ### Claim 15 (depends on 14) The device of claim 14, wherein the unique identifier is located on the base structure. ### Claim 16 (depends on 11) The device of claim 11, wherein the plurality of radiopaque, concentric-circle elements are located on the front surface of the base structure. ### Claim 17 (depends on 11) The device of claim 11, wherein the plurality of radiopaque symbols are located on the front surface of the base structure. ### Claim 18 (depends on 11) The device of claim 11, the base structure further comprising: a radiopaque location marker that is distinct from the concentric-circle elements and the symbols, the location marker being configured to aid in locating the device in a captured radiological image. ### Claim 19 (depends on 11) The device of claim 11, wherein each of the plurality of symbols represents a diameter of one of the plurality of concentric-circle elements. ### Claim 20 (depends on 11) The device of claim 11, wherein the plurality of symbols comprises a first portion configured to be detected during a first radiologic diagnostic procedure and a second portion configured to be detected during a second diagnostic procedure.