JP4785130B2 - Inspection device for biological light measurement device - Google Patents

Description

  The present invention relates to an inspection apparatus for a biological light measurement apparatus for performing an inspection related to light irradiation / light reception states in the biological light measurement apparatus.

  In the conventional biological light measurement device, before measuring the internal biological information of the actual subject, the biological simulated sample composed of a light scatterer, that is, the phantom is irradiated with light and the light passing through the phantom is detected. The probe, the optical fiber cable, and the measuring device main body are inspected (for example, see Patent Document 1).

JP 2001-137247 A

  In the conventional inspection method as described above, it is possible to measure the intensity of light that has returned to the main body of the measuring device, but other inspections such as the irradiation intensity of light from the irradiation probe could not be performed. . For this reason, conventionally, before the product was shipped, the irradiation intensity of the irradiation probe was measured one by one using an optical power meter. However, such an inspection method takes considerable time and cannot detect a change in irradiation intensity due to aged deterioration of the optical fiber cable.

The present invention has been made to solve the above-described problems, and it is an object of the present invention to obtain an inspection apparatus for a biological light measurement apparatus that can efficiently inspect the light irradiation intensity and the light receiving state. .

An inspection apparatus for a biological light measurement device according to the present invention includes a plurality of irradiation probe mounting portions on which a plurality of irradiation probes for irradiating light to a subject are mounted, and a plurality of light receiving portions for receiving light that has passed through the subject. a plurality of light receiving probe mounting portion receiving probe is attached, the test holder having an inspection body mounting portion facing the illumination probe mounting part and the light receiving probe mounting portion is selectively disposed in the test body mounting portion A light detection inspection body that passes light from the irradiation probe mounted on the irradiation probe mounting portion and scatters on the light receiving probe mounted on the light receiving probe mounting portion, and is mounted on the irradiation probe mounting portion A light intensity inspection body that receives light from the irradiation probe and outputs a signal corresponding to the intensity of the received light .

In the inspection apparatus of the biological light measurement apparatus according to the present invention, the two inspection bodies for performing the inspection of the light irradiation intensity and the light receiving state are selectively arranged on the inspection body mounting portion of the common inspection holder. While the probe and the light receiving probe are mounted on the inspection holder, it is possible to efficiently inspect the light irradiation intensity and the light receiving state .

The best mode for carrying out the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a perspective view showing an inspection apparatus for a biological light measurement apparatus according to Embodiment 1 of the present invention. In the figure, the measuring apparatus main body 1 is provided with a holder insertion hole 1a. The base end portion of the flat inspection holder 2 is inserted into the holder insertion hole 1a. The inspection holder 2 is pulled out from the measuring apparatus main body 1 as shown in FIG. 1 at the time of inspection, and is pushed into the measuring apparatus main body 1 and stored at the time of non-inspection. That is, the inspection holder 2 can be slid horizontally between the inspection position and the storage position.

  A plurality of irradiation probe mounting portions (mounting holes) 2 a and a plurality of light receiving probe mounting portions (mounting holes) 2 b are provided on the inspection holder 2. In FIG. 1, the irradiation probe mounting portion 2a is indicated by a solid line, and the light receiving probe mounting portion 2b is indicated by a broken line. The irradiation probe mounting part 2a and the light receiving probe mounting part 2b are arranged in a matrix at a predetermined interval (for example, 30 mm).

  Each irradiation probe mounting portion 2a is mounted (inserted) with an irradiation probe 3 for irradiating the subject with light. A light receiving probe 4 for receiving light that has passed through the subject is mounted (inserted) on each light receiving probe mounting portion 2b. The irradiation probe 3 is connected to the measurement apparatus main body 1 via the irradiation optical fiber cable 3a. The light receiving probe 4 is connected to the measuring apparatus main body 1 via a detection optical fiber cable 4a.

  In the inspection holder 2, an inspection body insertion hole 2c is provided as an inspection body mounting portion facing the irradiation probe mounting portion 2a and the light receiving probe mounting portion 2b. The irradiation probe mounting portion 2a and the light receiving probe mounting portion 2b communicate with the inspection object insertion hole 2c. In addition, the inspection object insertion hole 2 c is opened at the front surface of the inspection holder 2.

  In the inspection object insertion hole 2c, a plurality of types of inspection objects that output different information for performing inspections regarding the light irradiation / light reception state by receiving light from the irradiation probe 3 mounted on the irradiation probe mounting portion 2a. Is selectively inserted. In this example, the light detection inspection body 5 or the light intensity inspection body 6 is inserted into the inspection body insertion hole 2c as the inspection body.

  2 is a perspective view showing a light detection inspection body 5 inserted into the inspection body insertion hole 2c of FIG. 1, and FIG. 3 is a cross-sectional view showing a state where the light detection inspection body 5 is inserted into the inspection body insertion hole 2c of FIG. It is. The light detection inspection body 5 attenuates the light from the irradiation probe 3 and allows the light reception probe 4 to receive the passing light (information for performing the inspection). That is, the light detection inspection body 5 is composed of a flat light scatterer, and functions as a biological simulation sample (phantom). By measuring the light passing through the light detection inspection body 5 and received by the light receiving probe 4 with the measuring device main body 1, the operation of the entire device can be inspected.

  4 is a perspective view showing the light intensity inspection body 6 inserted into the inspection body insertion hole 2c of FIG. 1, FIG. 5 is a plan view showing the light intensity inspection body 6 of FIG. 4, and FIG. It is sectional drawing which shows the state which inserted the light intensity test | inspection body 6 in the hole 2c. A plurality of photoelectric sensors 7 that receive light from the irradiation probe 3 are provided on the light intensity inspection body 6. Each photoelectric sensor 7 is provided with a plurality of photoelectric sensors 7 that generate electrical signals corresponding to the intensity of received light. Moreover, the photoelectric sensor 7 is arrange | positioned in the position corresponding to the irradiation probe mounting part 2a.

  Moreover, the test body side connector 8 is provided in the front-end | tip part of the insertion direction of the light intensity test body 6 to the test body insertion hole 2c. The inspection holder 2 is provided with a holder side connector 9 that is connected to the inspection body side connector 8 when the light intensity inspection body 6 is inserted into the inspection body insertion hole 2c. Signals generated by the photoelectric sensor 7 (information for performing the inspection) are collected by the inspection body side connector 8 via the wiring in the light intensity inspection body 6, and are measured from the inspection body side connector 8 through the holder side connector 9. Sent to the main body 1. In the measuring apparatus main body 1, it is confirmed based on the signal from each photoelectric sensor 7 whether or not the irradiation intensity of light from each irradiation probe 3 is normal.

  According to such an inspection apparatus of a biological light measurement apparatus, two types of inspection bodies for performing different inspections, that is, the inspection body insertion hole 2c of the inspection holder 2 in which the light detection inspection body 5 and the light intensity inspection body 6 are common. Since the irradiation probe 3 and the light receiving probe 4 are mounted on the inspection holder 2, two types of inspections can be performed efficiently.

  Further, by using the light intensity inspection body 6 as the inspection body, the irradiation intensity of light from the plurality of irradiation probes 3 can be efficiently inspected before measurement. Thereby, the fall of the irradiation intensity | strength by the secular deterioration etc. of the optical fiber cables 3a and 4a is detectable. Further, even when the light irradiation intensity is higher than the reference for some reason, the abnormality can be easily detected by the inspection using the light intensity inspection body 6. Furthermore, it is possible to adjust the irradiation intensity (light quantity) according to the inspection result, and it is also possible to perform multi-channel simultaneous adjustment, thereby improving work efficiency.

Embodiment 2. FIG.
Next, FIG. 7 is a block diagram showing an inspection apparatus for a biological light measurement apparatus according to Embodiment 2 of the present invention. In the first embodiment, the inspection holder 2 is provided in the measurement apparatus main body 1, but in the second embodiment, the inspection holder 2 is separated from the measurement apparatus main body 1. Then, the inspection of the light irradiation intensity is performed not by the measuring apparatus main body 1 but by the dedicated light intensity meter 10. The light intensity meter 10 is provided with an intensity meter side connector 11 connected to the holder side connector 9. Note that the inspection by the light detection inspection body 5 is performed by the measurement apparatus main body 1 as in the first embodiment.

  According to such a configuration, it is possible to easily perform the irradiation intensity inspection even for the conventional biological light measurement apparatus in which the measurement apparatus main body does not have the irradiation intensity inspection function.

  In the second embodiment, the inspection holder 2 is separated from the measurement apparatus main body 1. However, the inspection holder 2 may be a type that is pulled out from the measurement apparatus main body 1 as in the first embodiment. In this case, a test object side connector 8 is provided at the rear end of the light intensity test object 6 in the test object insertion hole 2c in the direction of insertion, and the test object side connector 8 exposed to the outside from the opening of the test object insertion hole 2c is connected to the strength meter side. The connector 11 may be connected.

  Further, in the first and second embodiments, the example in which the light detection inspection body 5 and the light intensity inspection body 6 are completely replaced has been shown. However, a flat plate shape in which the light detection inspection body and the light intensity inspection body are arranged side by side. By using the inspection body unit and sliding the inspection body unit with respect to the inspection holder, the light detection inspection body and the light intensity inspection body may be selectively arranged on the inspection body mounting portion.

Furthermore, it is good also as a structure which arrange | positions a light detection test body and a light intensity test body in piles on a test body mounting part, shifts the position of the test body which is not used, and removes it from a test body mounting part.
Furthermore, in Embodiments 1 and 2, two types of inspection bodies are shown, but three or more types of inspection bodies may be used to perform different inspections.
Further, the number and arrangement of the irradiation probe mounting portions and the light receiving probe mounting portions are not particularly limited.
Furthermore, the shape of the inspection holder is not limited to the above example.

It is a perspective view which shows the test | inspection apparatus of the biological light measuring device by Embodiment 1 of this invention. It is a perspective view which shows the optical detection test body inserted in the test body insertion hole of FIG. It is sectional drawing which shows the state which inserted the optical detection test body into the test body insertion hole of FIG. It is a perspective view which shows the light intensity test body inserted in the test body insertion hole of FIG. It is a top view which shows the light intensity test body of FIG. It is sectional drawing which shows the state which inserted the light intensity test body in the test body insertion hole of FIG. It is a block diagram which shows the test | inspection apparatus of the biological light measuring device by Embodiment 2 of this invention.

Explanation of symbols

  2 inspection holder, 2a irradiation probe mounting portion, 2b light receiving probe mounting portion, 2c inspection body insertion hole (inspection body mounting portion), 3 irradiation probe, 4 light receiving probe, 5 light detection inspection body, 6 light intensity inspection body.

Claims (3)

A plurality of irradiation probe mounting portions on which a plurality of irradiation probes for irradiating light to the subject are mounted, and a plurality of light receiving probe mounting portions on which a plurality of light receiving probes for receiving light passing through the subject are mounted And an inspection holder having an inspection body mounting portion facing the irradiation probe mounting portion and the light receiving probe mounting portion ,
It is selectively placed on the inspection object mounting part,
A light detection inspection body that passes light from the irradiation probe mounted on the irradiation probe mounting portion and scatters on the light receiving probe mounted on the light receiving probe mounting portion;
A light intensity inspection body that receives light from the irradiation probe mounted on the irradiation probe mounting portion and outputs a signal corresponding to the intensity of the received light;
An inspection apparatus for a biological light measurement device, comprising: The operation of the biological light measurement device is inspected by the light receiving probe received by the light detection inspection body,
The irradiation probe is connected to the living body light measurement device main body via a detection optical fiber cable, and inspects the aged deterioration of the detection optical fiber cable by a signal according to the intensity of light received by the light intensity inspection body. The inspection apparatus for a biological light measurement apparatus according to claim 1, wherein the inspection apparatus is a biological light measurement apparatus. The inspection body mounting portion, the biological light measuring apparatus according to claim 1 or claim 2 characterized by having a test body insertion hole which the light detection inspection or the intensity of inspection is inserted selectively Inspection equipment.

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