Head blood flow balance inspecting apparatus

The present invention relates to a head blood flow balance inspecting apparatus for preventing mainly apoplexy or brain infarct.

It is extensively known that brain infarct is liable to be induced when a feed amount of blood to a brain is reduced, and apoplexy is liable to be induced in the case where a blood pressure is high. These conditions of disease occur at a position where the blood flow condition in the brain is asymmetric. In any case, those diseases are more likely to occur in the case where the right and left blood flows in the head portion become unbalance in comparison to the case where the right and left blood flows in the head portion is well balanced.

Therefore, it is possible to take an approach to measure and compare body temperatures within right and left ears to know the presence/absence of the blood flow insufficiency as a simple inspection means of the blood flow conditions on the right and left of the head portion. However, since the conventional equipment (thermometer for measuring the interior of the ear) is provided only with a single ear interior thermometer portion, in the case the right and left ear temperatures are measured in order by using the same equipment, the ear interior temperatures on the right and left sides are not always measured under the same thermometric measurement condition due to the body temperature of the person to be measured by holding the equipment by the person. Namely, there is a fear that the precise measurement would not be performed.

In order to overcome the above-noted defects, an object of the present invention is provide a novel head blood flow balance inspecting apparatus for measuring accurately and simultaneously the right and left ear internal temperatures.

According to a first aspect of the present invention, there is provided a head blood flow balance inspecting apparatus comprising two ear interior thermometric portions, a connecting portion for connecting the two ear interior thermometric portions and a display portion for displaying a measurement result of the two ear interior thermometric portions.

In the head blood flow balance inspecting apparatus according to the first aspect of the invention, the connecting portion is used to connecting the two ear interior thermometric portions, the two ear interior thermometric portions are provided at tip end portions to face each other, and the connecting portion is formed by an elastic member for biasing the two ear interior thermometric portions in a direction to face each other.

Also, in the head blood flow balance inspecting apparatus according to the first aspect of the invention, each of the ear interior thermometric portions is composed of a sensor portion to be inserted into the ear and a body portion projecting with the sensor portion, the sensor portion being forced to convert the ear interior detected temperature detected by an infrared ray sensor into an electrical signal and to feed it to a display portion, and the body portion interrupts the communication between an external auditory meatus and an outside, the sensor portion is inserted into a ear hole at a suitable position and condition and is formed to be stable in that condition.

Also, in the head blood flow balance inspecting apparatus according to the second aspect of the invention, each of the ear interior thermometric portions is composed of a sensor portion to be inserted into the ear and a body portion projecting with the sensor portion, the sensor portion being forced to convert the ear interior detected temperature detected by an infrared ray sensor into an electrical signal and to feed it to a display portion, and the body portion interrupts the communication between an external auditory meatus and an outside, the sensor portion is inserted into a ear hole at a suitable position and condition and is formed to be stable in that condition.

Also, in the head blood flow balance inspecting apparatus according to the third aspect of the invention, the connecting portion is a connecting portion made of a U-shaped elastic member elastically surrounding a lower portion of a face or the vicinity thereof, and the electrical signal of the ear interior detected temperature detected by the infrared ray sensor of the sensor portion is fed through the connecting portion to the display portion provided in the midway of the connecting portion.

Also, in the head blood flow balance inspecting apparatus according to the fourth aspect of the invention, the connecting portion is a connecting portion made of a U-shaped elastic member elastically surrounding a lower portion of a face or the vicinity thereof, and the electrical signal of the ear interior detected temperature detected by the infrared ray sensor of the sensor portion is fed through the connecting portion to the display portion provided in the midway of the connecting portion.

Also, in the head blood flow balance inspecting apparatus according to the third aspect of the invention, the connecting portion is a connecting portion made of an elastic member of an inverted U-shaped member fitted around the head portion, and the electrical signal of the ear interior detected temperature detected by the infrared ray sensor of the sensor portion is fed through a transmission cord for feeding the electric signal to the display portion.

Also, in the head blood flow balance inspecting apparatus according to the fourth aspect of the invention, the connecting portion is a connecting portion made of an elastic member of an inverted U-shaped member fitted around the head portion, and the electrical signal of the ear interior detected temperature detected by the infrared ray sensor of the sensor portion is fed through a transmission cord for feeding the electric signal to the display portion.

It is therefore possible to accurately detect the right and left blood flow balance of the head portion by measuring simultaneously the right and left ear hole body temperatures through the two ear interior thermometric portions connected to each other through a connecting portion and displaying the measurement results (the right and left ear interior temperatures or the difference therebetween) on the display portion.

Accordingly, according to the present invention, it is possible to prevent the disease concerning the head portion blood flow, such as the apoplexy or brain infarct, by the right and left blood flow balance of the head portion known exactly.

In the accompanying drawings:

FIG. 1 is a perspective view showing a first embodiment of the invention;

FIG. 2 is an illustration showing a state in which the apparatus according to the first embodiment of the invention is used; and

FIG. 3 is a perspective view showing a second embodiment of the invention.

An embodiment of the present invention will now be described with reference to the accompanying drawings. FIGS. 1 and 2 shows a first embodiment in which components are formed in a one-piece manner.

A head blood flow balance inspection apparatus according to the first embodiment is composed of two ear interior thermometric portions 1 and 2 , a connecting portion 3 for connecting these two ear interior thermometric portions 1 and 2 and a display portion 4 for displaying a measurement result of the ear interior thermometric portions 1 and 2 .

The ear interior thermometric portions 1 and 2 are composed of sensor portions 1 a and 2 a (probes) to be inserted into the ears and body portions 1 b and 2 b from which the sensor portions 1 a and 2 a project, respectively. The sensor portions 1 a and 2 a contain infrared ray sensors (for detecting infrared ray amount) like a conventional thermometer for measuring the interior of the ear that has been frequently used, respectively, and converting the ear interior detected temperatures into electric signals to feed the signals to the display portion 4 through the connecting portion 3 . Also, the body portions 1 b and 2 b interrupts the communication between external auditory meatuses and the outside and at the same time, have such shapes that the above-described sensor portions 1 a and 2 a are inserted into the holes of the ears at suitable positions and conditions and those conditions are stabilized.

The connecting portion 3 is formed of elastic material and is provided in the mid way with the display portion 4 . The above-described body portions 1 b and 2 b are connected to the tip end portions of the connecting portion 3 . The connecting portion 3 is biased in a direction in which the ear interior thermometric portions 1 and 2 face each other so as not to generate any positional displacement when the above-described sensor portions 1 a and 2 a are installed within the ears. Also, this connecting portion as a whole is formed into a U-shape to surround the lower portion of the face or the vicinity thereof.

The display portion 4 is used to display the ear interior temperatures (i.e., the infrared ray amounts) detected by the above-described sensor portions 1 a and 2 a , to display the ear interior temperatures on the right and left sides in parallel, to display the difference of the temperatures, or to alarm the correctness of the difference (in the case where an alarm should occur) by incorporating a judgment circuit therefor.

With such an arrangement according to the first embodiment, the sensor portions 1 a and 2 a of the above-described ear interior thermometric portions 1 and 2 are inserted into both ears of the person to be inspected, the sensor portions 1 a and 2 a are held under the suitable positional conditions within both ears by the body portions 1 b and 2 b , and the ear interior temperatures are measured under the same condition on the right and left sides to display the result on the display 4 . As a result, it is possible to know the balance between the right and left blood flows of the head portion and to use the result as material for the countermeasure for preventing the disease concerning the blood flow in the head portion such as apoplexy or brain infarct.

Also, by the biasing effect of the connecting portion 3 , it is possible to mount the sensor portions 1 a and 2 a under the same condition while the mounting angle, the mounting pressure, the mounting depth or the like of the sensor portions 1 a and 2 a to the ear holes is identified within both ears upon the measurement of the right and left ears. Also in this connection, it is possible to measure the ear interior temperatures in more identified condition.

FIG. 3 shows a second embodiment of the present invention in which the connecting portion 3 for connecting the ear interior thermometric portions 1 and 2 is formed into an inverted U-shaped independent member to be fit around the head portion. The electric signals of the ear interior measured temperatures detected by the infrared sensors of the sensor portions 1 a and 2 a are fed to the display portion 4 through a discrete transmission cord 5 away from the above-described connecting portion 3 for feeding the electric signals.

With such an arrangement according to the second embodiment, the ear interior thermometric portions 1 and 2 are supported by the inverted U-shaped connecting portion 3 to be fitted around the head portion. It is therefore possible to hold the sensor portions 1 a and 2 a in the suitable positional conditions within both ears in a more stable manner.

Furthermore, since the connecting portion 3 and the display portion 4 are separated from each other, it is possible to enhance the ability of the display portion 4 and readily assemble the judgement circuit or the like for performing the various calculations.

Incidentally, the present invention is not limited to the above-described embodiments. It is sufficient to have the two ear interior thermometric portions, the connecting portion for connecting these two ear interior thermometric portions and the display portion 4 for displaying the measurement result of the above-described two ear interior thermometric portions. Thus, it is possible to take any desired structure for the display means or the temperature measuring means.

The other is the same as that of the first embodiment.