# US 10,314,519 B2 · Blood vessel sizing device

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- Number: US 10,314,519 B2
- Document ID: US10314519B2
- Status: Granted
- Kind: B2
- Application number: 15/192,318
- Filed: 2016-06-24
- Published: 2016-10-20
- Granted: 2019-06-11
- Earliest claimed: 2012-03-22
- Assignees: Sizer LLC
- Applicants: Sizer LLC
- Inventors: Richard B. Park
- Web page: https://patentgrep.com/patent/US10314519B2

## 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}
- 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 2560/0412: Low-profile patch shaped housings
- 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 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.

## Claims

### Claim 1

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.

### Claim 2 (depends on 1)

The sizing device of claim 1, further comprising:
a deformable structure having a front surface and a back surface, the front surface of the deformable structure adhered to the back surface of the base structure.

### Claim 3 (depends on 2)

The sizing device of claim 2, further comprising:
a window, formed by the adhesion of the front surface of the deformable structure to a perimeter area of the back surface of the base structure.

### Claim 4 (depends on 2)

The sizing device of claim 2, wherein the front surface of the deformable structure completely covers the back surface of the base structure.

### Claim 5 (depends on 2)

The sizing device of claim 2, wherein the deformable structure comprises a sponge-like material.

### Claim 6 (depends on 1)

The sizing device of claim 1, wherein the base structure comprises a polymeric material.

### Claim 7 (depends on 1)

The sizing device of claim 1, further comprising:
a non-adhesive tab structure projecting from a side of the base structure, for facilitating facile removal of the device from the area of skin of the patient.

### Claim 8 (depends on 1)

The sizing device of claim 1, wherein the device is uniquely identified by a radiopaque unique identifier on the base structure.

### Claim 9 (depends on 8)

The sizing device of claim 8, wherein the radiopaque unique identifier comprises a machine-readable barcode.

### Claim 10 (depends on 1)

The sizing 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 configured to aid in locating the device in a captured radiological image.