JP2852450B2 - Skin temperature measuring device for diagnosis of peripheral circulatory dysfunction - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a skin temperature measuring device for diagnosing peripheral circulatory dysfunction, which measures an ambient temperature near a sign placed and positioned in a gas thermostat. Meanwhile, the skin temperature of the sign is measured by a radiation thermometer.

(Prior art) It is known that peripheral circulatory dysfunction occurs when suffering from vibration disorders, collagen diseases, diabetes mellitus and the like. When peripheral circulatory dysfunction occurs, blood circulation is impaired in the peripheral circulatory system such as the fingertip, and this blood circulation impairment appears as abnormal skin temperature.Therefore, as a method of diagnosing the presence or degree of peripheral circulatory dysfunction, It is effective to measure the skin temperature of the fingertip and the like.

Therefore, the present applicant has previously proposed a skin temperature measuring device for diagnosing peripheral circulatory dysfunction (Japanese Patent Laid-Open No. 63-260533). This device is configured by providing a radiation thermometer, a fingertip insertion portion and a positioning member, a fan, and the like in a low-temperature gas thermostat, and inserting the fingertip from the insertion portion to perform positioning. After positioning the fingertip within the field of view of the radiation thermometer by the body,
The skin temperature of the fingertip is measured by a radiation thermometer while blowing cool air onto the fingertip with a fan.

(Problems to be Solved by the Invention) However, in the above-mentioned conventional means, the temperature in the gas thermostat fluctuates due to fluctuations in the operating load of the cooling device such as the external temperature and the body temperature of the hand inserted from the insertion portion. There is a problem that the measurement value is apt to cause an error in the measured value.

Therefore, the present invention provides a skin temperature measuring device for diagnosing peripheral circulatory dysfunction, which can accurately measure the skin temperature of a sign by maintaining a constant ambient temperature in the vicinity of a sign placed and positioned in a gas thermostat. The purpose is to provide.

(Means for Solving the Problems) For this purpose, the present invention is configured by disposing a radiation thermometer 15 inside the low-temperature gas thermostat 1, and inserting the sign insertion part 16 into the gas thermostat 1. A positioning body 17 for positioning the inserted sign within the visual field of the radiation thermometer 15, a fan 31 for blowing cold air to the positioned sign, and a cooling device 26 are provided and positioned. In the vicinity of the sign, a temperature measuring device 32 for measuring the ambient temperature in the gas thermostat 1 is provided, and the ambient temperature is controlled by an output signal of the temperature measuring device 32. It is.

(Operation) In the above configuration, when the skin temperature of the sign is measured by the low-temperature gas thermostat 1, the sign is inserted into the gas thermostat 1 from the insertion part 16, and the sign is positioned by the positioning body 17. After positioning it in the field of view of the radiation thermometer 15 and blowing the cool air on this sign with the fan 31, the radiation thermometer 15
To measure the skin temperature of the sign. In this case, the ambient temperature near the sign is measured by the temperature measuring device 32 arranged near the sign, and the set temperature is kept constant.

Embodiment 1 Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an internal perspective view of a skin temperature measuring apparatus, and FIG. 2 is a cross-sectional view, wherein 1 is a box-shaped low-temperature gas thermostat, and the thermostat 1 is a heat insulating material made of foam synthetic resin or the like. A cover plate 3 is attached to the outside of the material 2. The thermostatic chamber 1 is partitioned by a partition 5 into a measuring chamber 6 for measuring skin temperature and an air-conditioning chamber 7, and an air inlet 8 and an outlet 9 are opened at one upper side and one lower side of the partition 5. The fans 8 and 9 are provided with fans 11 and 12, respectively.

Reference numeral 15 denotes a radiation thermometer provided at a lower portion in the measurement chamber 6. Reference numeral 16 denotes an insertion portion of the hand opened to the side wall of the measurement chamber 6, and a cover member 19 made of a tongue-shaped elastic sheet is mounted on the insertion portion for maintaining airtightness. 17 is the insertion part 16
And a box-shaped hand positioning body provided in the measurement chamber 6 in connection with the apparatus. Next, the detailed shape of the positioning body will be described with reference to FIGS. 3 and 4. FIG.

FIG. 3 is a perspective view of the positioning body 17, and FIG. 4 is a sectional view. The positioning body 17 is formed of a heat insulating elastic material such as sponge or foam resin. Reference numeral 18 denotes an insertion hole for inserting a hand, reference numeral 20 denotes an opening provided at a lower part of one side of the positioning body 17, and reference numeral 21 denotes a peeping part provided at an upper part of one side of the positioning body 17. Positioning walls 22, 23 are formed on both sides of the opening 20 in the positioning body 17.

As shown in FIG.
When the fingertip f, which is a sign, is partially exposed from the opening 20, the fingertip f is positioned from the left and right by the positioning walls 22, 23 in that state, and the radiation temperature 15 in total
(See also FIG. 1). Note that the shape of the positioning body 17 is not limited to the present embodiment, but the point is that the fingertip f can be correctly positioned within the field of view of the radiation thermometer 15, and furthermore, only the fingertip f is exposed to cold air so that the fingertip f It is desirable that a portion other than the portion f can be protected from cold air.

Reference numeral 24 denotes a peephole for peeping into the inside of the thermostat 1, which is provided directly above the peeping section 21 and checks whether the fingertip f is correctly positioned in the visual field of the radiation thermometer 15. Monitor. Note that a television camera may be provided above the peeping section 21 and the peeping window 24, and monitoring may be performed by a monitor television.

In FIG. 2, reference numeral 13 denotes a partition wall for vertically partitioning the air-conditioning chamber 7, and a cooling device 26 is provided below the partition wall. 14 is a vent, and 27 is a fan. The air sent from the inlet 8 to the upper part of the air conditioning room 7 by the fan 11 is
After being sent downward by the fan 27 through the ventilation holes 14 and cooled by the cooling device 26, the air is sent out from the outlet 9 to the measurement chamber 6 as cold air by the fan 12. The temperature in the thermostat 1 is set to an arbitrary temperature between 0 ° C and 7 ° C. That is, 0
When the temperature is lower than 0 ° C., there is a problem that the physical pain of the subject increases, and when the temperature is higher than 7 ° C., it is too warm.
C. is desirable, and 4 C. to 6 C. is more desirable.

In FIG. 1, reference numeral 30 denotes a nozzle, and 31 denotes a fan. The fan 31 sucks the cool air sent from the outlet 9 into the nozzle 30, and blows the cool air to the fingertip f positioned from the outlet 30a. When the cool air is blown on the fingertip f in this way, it is possible to prevent the air on the surface of the fingertip f from stagnating, thereby causing a measurement error of the skin temperature. Since only the fingertip f is partially exposed from the opening 20 as described above, the cool air from the nozzle 30 hits only the fingertip f,
The portion other than the fingertip f is guarded by the positioning body 17 and is not exposed to the cold air, so that the physical pain of the subject due to the cooling load can be avoided.

Numeral 32 denotes a temperature measuring device disposed at the tip of the nozzle 30, for measuring the ambient temperature in the measuring chamber 6, especially near the fingertip f. The ambient temperature in the thermostat 1 is
Although slightly different depending on the location, the temperature measuring device 32 is thus connected to the outlet 30a of the nozzle 30 near the part to be measured.
In this case, the ambient temperature near the fingertip f can be accurately measured.

Reference numerals 33 and 34 denote heaters disposed above and below the air-conditioning room 7, respectively. The heaters 33 and 34 are light bulbs, and the fingertip f
When it is measured by the temperature measuring device 32 that the nearby ambient temperature has dropped below the set temperature, the temperature is automatically turned on by the output signal, and the air sent from the inlet 8 into the air-conditioning room 7 is warmed. Raise to the set temperature. Of course, the temperature measuring device 32
The cooling device 26 may be controlled to adjust the temperature of the thermostatic bath 1 by the output signal of (1).

The present apparatus is configured as described above. Next, a method of measuring the skin temperature of the sign will be described.

As described above, the hand is inserted into the low-temperature constant temperature bath 1, and the fingertip f is positioned within the visual field of the radiation thermometer 15 by the positioning body 17. The inside of the thermostatic chamber 1 has a low temperature (5 in this embodiment).
° C), the ambient temperature around the fingertip f is measured by the temperature measuring device 32, and the set temperature is maintained.
The radiation thermometer 15 measures the decrease in the skin temperature of the fingertip f.

In this case, the fan 31 is driven as described above to
The cool air is blown to the fingertip f from above so that the air near the fingertip f does not stay. Before measuring the skin temperature in the thermostatic bath 1, the measurer waits for a predetermined time (for example, 15 minutes) at a constant temperature (for example, 25 ° C.) or separates a high-temperature (for example, 25 ° C.) thermostatic bath. It is desirable to keep the initial conditions constant by putting hands in the thermostat for a certain period of time (for example, 15 minutes).

FIG. 6 shows a thermostat 1 in which the hands are kept at 5 ° C.
, The skin temperature curve of the fingertip f when inserted into the sample, the solid line is the curve of a healthy person, and the dashed line is the curve of a person with peripheral circulatory dysfunction. As is clear from these temperature curves, in the case of a healthy person, even if the skin temperature of the fingertip f drops to a certain temperature, the temperature rises again to a certain temperature due to the cold vasodilator reaction of the peripheral circulatory system.

On the other hand, in the case of a person with a disability, the temperature starts dropping rapidly as soon as the user puts his hand into the thermostat 1, and after 10 minutes, drops to around room temperature (5 ° C.) of the thermostat 1. That is, in the case of a disabled person, the cold vasodilator reaction as described above is not observed, and the temperature of the skin of the fingertip f once lowered does not rise. As described above, according to the skin temperature measurement method, it is possible to distinguish a healthy subject from a peripheral circulatory dysfunction subject by the presence or absence of a cold vasodilator reaction.

When the skin temperature of the fingertip f is measured by using the low-temperature constant temperature bath 1, if the skin temperature is measured while changing the magnitude of the cool air load applied to the fingertip f, the presence or absence of peripheral circulatory dysfunction is more effectively achieved. Can be diagnosed. That is, if a cold vasodilator reaction is not observed even when the cool air load is reduced by lowering the rotation speed of the fan 31 or increasing the aperture of the tip end 30a of the nozzle 30, the subject is a disabled person. If there is a high possibility that the cold vasodilatory reaction is observed even if the cold air load is increased by increasing the rotation speed of the fan 31 or reducing the throttle of the outlet 30a, Can be diagnosed as having a high possibility of being a healthy person.

In addition, for those in the middle of a disabled person and a healthy person, it is sufficient to examine whether or not a cold vasodilator reaction is recognized while further changing the cold air load variously. Various means for adjusting the magnitude of the cool air load are conceivable, and may be adjusted by, for example, changing the temperature of the measurement chamber 6.

The skin temperature measuring apparatus according to the present invention can be variously modified. For example, the skin temperature of the fingertip of the index finger and the skin temperature of the fingertips such as the thumb and the ring finger can be measured at the same time. By comparing the results, the presence or absence of the peripheral circulatory dysfunction of the fingertips may be diagnosed, or the skin temperature of the toes may be measured.

(Effects of the Invention) As described above, the present invention is configured by disposing the radiation thermometer 15 inside the low-temperature gas thermostat 1.
In addition, the insertion portion 16 of the signage, a positioning body 17 for positioning the inserted signage within the field of view of the radiation thermometer 15, a fan 31 for blowing cold air to the positioned signage, and a cooling device 26, and a temperature measuring device 32 for measuring the ambient temperature in the gas thermostat 1 is provided near the positioned sign, and the output signal of the temperature measuring device 32 is Since the ambient temperature is controlled, by measuring the ambient temperature near the sign placed and positioned in the gas thermostat 1 and keeping the set temperature constant, the skin temperature of the sign is extremely accurate. Can be measured.

In addition, since the positioning body 17 is provided with the opening 20 so that the sign is partially exposed from the opening 20, the cold air hits only the sign and the other parts are protected by the positioning body 17. In addition, the physical pain of the subject due to the application of the cold air load can be reduced.

[Brief description of the drawings]

1 shows an embodiment of the present invention. FIG. 1 is an internal perspective view of a skin temperature measuring device, FIG. 2 is a sectional view, FIG. 3 is a perspective view of a positioning body, and FIG. FIG. 5 is an internal perspective view, and FIG. 6 is a temperature diagram. 1 low temperature gas thermostat 15 radiation thermometer 16 insertion part 17 positioning body 20 opening 26 cooling device 31 fan 32 temperature measuring instrument

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A61B 5/00

Claims (2)

(57) [Claims] A radiation thermometer is provided inside a low-temperature gas thermostat, and an insertion portion of a sign portion and an inserted sign portion are placed in the gas thermostat within the visual field of the radiation thermometer. A positioning body for positioning, a fan for blowing cold air to the positioned sign, and a cooling device are provided, and near the positioned sign, for measuring the ambient temperature in the gas thermostat. A skin temperature measuring device for diagnosing peripheral circulatory dysfunction, wherein a temperature measuring device is provided, and the ambient temperature is controlled by an output signal of the temperature measuring device. 2. An opening is provided in the positioning body, and a sign inserted from the insertion portion is partially exposed from the opening, and a portion other than the sign is protected from cold air by the positioning body. The skin temperature measuring device for diagnosing peripheral circulatory dysfunction according to claim 1, wherein the skin temperature measuring device is used for diagnosing peripheral circulatory dysfunction.