JP2020116359A - Blood flow checker - Google Patents

Abstract

To address to such a problem that an expensive apparatus such as a laser blood flow meter is required to measure a change in a blood flow rate of a skin, and to provide a blood flow checker capable of easily checking a change in a blood flow rate at medical sites.SOLUTION: It is recognized that there is a relation between a skin temperature and a skin blood flow rate. Therefore, a digital thermo tape with a reaction time of substantially one second, capable of quickly measuring the skin temperature is brought into contact with the skin to measure the skin temperature. Only a digital thermo tape of 34°C, which is close to the skin temperature, is used so as to acquire tendency of a change in the blood flow rate from a change in the skin temperature. Further, the digital thermo tape is inexpensive and does not require an electric power supply so as to be usable at medical sites as a convenient skin blood flow measuring instrument. Besides, the blood flow checker can be used in the medical field for checking the blood circulation promotion effect, it is conceivable to be applied to a massage and acupuncture field and also to be used as a simple skin blood flow meter for managing the daily skin.SELECTED DRAWING: Figure 2

Description

The present invention relates to a blood flow checker that confirms changes in blood flow based on skin temperature.

Infrared thermography looks at the blood flow distribution in the skin from the temperature distribution on the body surface (Non-Patent Document 1). Infrared thermography is often used to measure skin temperature, but it takes time for preparatory work, such as 20 minutes or more being required to acclimate to room temperature of 25° C. in preparation for inspection.

The laser blood flow meter is used as a measuring instrument capable of visualizing blood flow, and can provide blood flow as an image with an optical fiber or a CCD camera. However, the depth of measurement at the present time is up to about 0.5 mm from the skin surface (Non-Patent Document 2), and the visualization of capillaries in the epidermis is limited.

On the other hand, the method of fixing a sensor such as a thermistor to the skin with tape to measure is sure, but it takes time for the subject because it takes time to reach a predetermined temperature. There are also non-contact infrared skin thermometers, but they are unstable due to the influence of environmental temperature.

The existing infrared thermography takes time to prepare for measurement, the laser blood flowmeter has a measurement depth of about 0.5 mm shallow from the epidermis, and does not reach the vascular network of subcutaneous tissue. It depends on the measurement conditions such as what is done in a dark room (Patent Document 1). Therefore, in order to measure the blood flow volume of the intended skin on the spot, it is necessary to perform quick measurement, which causes a problem in measurement time.

In addition, the relationship between the skin temperature and the skin blood flow is recognized (Non-Patent Document 3). Furthermore, since the upper limit value of skin temperature is set to about 36° C., a method of measuring the skin temperature of 36° C. or lower to know the tendency of change in blood flow is not currently used.

Japanese Patent Application 2016-228344

"Medical Application of Infrared Thermography" The 34th Regular Research Material of IR Society of Japan IR-03-5 P41-46 2003-2-14 "Laser Doppler" Angiology Vol. 45 No. 5 P312-316 May 25, 2005 "Measurement of peripheral skin circulation and biofeedback" Biofeedback research 1997, 24 volumes P28-35

Conventional infrared thermography and laser blood flowmeter measurement impose a burden on the subject due to the time required for preparation and the need for a dark room. In addition, the device is expensive and difficult to use in medical treatment and other fields. Furthermore, when the measurement is performed by contacting the skin with a thermistor or the like, the measurement time until reaching a predetermined temperature becomes long, which is a burden on the subject.

In the present invention, a digital thermotape having a reaction time of about 1 second is used in contact with the skin, and the skin temperature of the skin is quickly measured. As the digital thermotape, only the digital thermotape at 34°C which is close to the skin temperature is used, and the change tendency of the skin temperature is confirmed by the color change of the digital thermotape.

By using a digital thermotape, the bloodstream checker of the present invention can be used in the field as a skin bloodstream measuring instrument that is inexpensive, does not require a power supply, and is easy to use. In addition, since the reaction speed is fast, it is possible to attach it to a treatment device at a medical site and confirm the blood circulation promoting effect of the treatment on the spot.

It is explanatory drawing which showed the implementation method of the blood-flow checker. (Example 1) It is explanatory drawing which showed the implementation method of the blood-flow checker. (Example 2)

FIG. 1 is an embodiment 1 in which a blood flow checker is attached to an eyelid embolus, and a blood flow checker 1 in which a digital thermo tape 3 is attached to a pad 2 of a sponge material is attached to glasses 4 and brought into contact with an eyelid. Measure skin temperature.

FIG. 2 is a second embodiment of a blood flow checker for measuring the skin temperature of a portion other than the portion for eyelids of FIG. 1, which is composed of a blood flow checker 1 in which a digital thermotape 3 is attached to a pad 2 of a sponge material, Hold the checker 1 by hand and apply it to the point of the part to be measured.

The usage procedure will be described below. FIG. 1 shows Example 1 in which the blood flow checker 1 is attached to the eyelid embolus, and the digital thermotape 3 is detached from the tape at 34° C. and attached to the pad 2, and the eyeglasses 4 are used to make contact with the eyelid. After that, follow the procedure for using the eyelid embolizer, and check the color change of the digital thermotape 3 at the time when the buzzer sounds after 1 minute and 3 minutes. As for the change in color of the digital thermotape 3 at 34° C., brown is 33° C., green is 34° C., and blue is 35° C. as a guide, and the color after 1 minute and after 3 minutes is compared. From this tendency of change in skin temperature, change in blood flow can be confirmed.

The procedure of use in FIG. 2 is the second embodiment for measuring a site other than the portion for eyelids in FIG. 1, and is intended for the blood flow checker 1 when an activity such as treatment or exercise that promotes blood circulation in the target site is performed. Place your hand on the area to be compared and compare the skin temperature before and after the activity. The measurement time is required to be 30 seconds to 1 minute at a time, and the blood flow checker 1 can be incorporated with a timer for 1 minute.

As an application field of the blood flow checker 1, in the field of confirming the therapeutic effect by promoting blood circulation, it can be applied to ophthalmology, dermatology, rehabilitation department, orthopedic surgery, cosmetic surgery, etc. by incorporating it into a treatment device or massage device. .. In addition, application of massage and acupuncture to confirm the effect of promoting blood circulation can be considered. Further, it can be applied to confirm the blood circulation promoting effect on the scalp and skin.

Further, since the blood flow checker 1 can know the change in blood flow from the temperature of the skin, it can be considered to be used as a simple skin thermometer for managing the skin and the skin from the viewpoint of daily health management.

When the blood flow checker 1 is applied to the skin, a wrap film for food is used from the viewpoint of safety and hygiene so that the digital thermotape 3 does not directly contact the skin.

1 Blood flow checker 2 Pad 3 Digital thermo tape 4 Glasses

Claims (1)

In order to know the change in blood flow in the skin by measuring the skin temperature, we used only digital thermotape at 34°C, which has a fast reaction speed and does not require a power supply, and confirmed the change in blood flow from the skin temperature. A blood flow checker that can.

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