A vascular management device that utilizes electrical stimulation.

Abstract

A vascular management device capable of managing blood vessels using electrical stimulation includes a patch section that includes a first patch attached to a first site of any blood vessel in the body and sensing a first blood flow velocity (V1), which is the blood flow velocity at the first site, and a second patch attached to a second site of the same blood vessel to which the first patch is attached and sensing a second blood flow velocity (V2), which is the blood flow velocity at the second site; a terminal section that quantitatively calculates whether or not there is an abnormality in the blood vessel based on the velocity difference between the first and second blood flow velocities received from the patch section; and a pad section that is attached to a position close to the blood vessel between the first and second patches and applies electrical stimulation to the blood vessel when it is determined that an abnormality has occurred in the blood vessel.

Claims

1. A patch portion comprising: a first patch that attaches to a first site of any blood vessel in the body and senses a first blood flow velocity (V1) which is the blood flow velocity at the first site; and a second patch that attaches to a second site of the same blood vessel to which the first patch is attached and senses a second blood flow velocity (V2) which is the blood flow velocity at the second site; A terminal unit that quantitatively calculates whether or not there is an abnormality in the blood vessel based on the difference in velocity between the first and second blood flow velocities received from the patch portion, The pad portion includes a pad portion which is attached to a position close to the blood vessel between the first patch and the second patch, and which applies electrical stimulation to the blood vessel when it is determined that an abnormality has occurred in the blood vessel, The pad portion includes a pad control unit that varies the intensity, frequency, and period of the electrical stimulation. The pad control unit tracks the difference between the peak value of the first blood flow velocity and the peak value of the second blood flow velocity calculated by the terminal unit while varying the intensity, frequency, and period of the electrical stimulation. After obtaining the optimal intensity, frequency, and period that minimize the difference between the peak values ​​of the first and second blood flow velocities, the pad unit operates to generate the electrical stimulation at the obtained optimal intensity, frequency, and period. A vascular management device that utilizes electrical stimulation, characterized by the following features.

2. The first patch and the second patch include a photoplethysmography sensor. A vascular management device utilizing electrical stimulation as described in claim 1.

3. The terminal unit includes a quantification unit that quantitatively calculates whether or not there is an abnormality in the blood vessel based on the velocity difference between the first blood flow velocity (V1) and the second blood flow velocity (V2). The quantification unit is represented by the following formula (1): Formula (1): Result value = {(V1 - V2) / max(V1, V2)} × 100 The presence or absence of vascular abnormalities is quantitatively calculated using this method. A vascular management device utilizing electrical stimulation as described in claim 1.

4. The system further includes a display unit that displays the result value calculated by the quantification unit, and the display unit outputs a measurement block that reflects the result value calculated by the quantification unit. A vascular management device utilizing electrical stimulation as described in claim 3.

5. The measurement block outputs a value proportional to the result, allowing the practitioner to intuitively grasp the difference between the first blood flow velocity and the second blood flow velocity. A vascular management device utilizing electrical stimulation as described in claim 4.

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