WO2022064663A1 - Vital data measurement device - Google Patents

Abstract

[Problem] To provide a vital data measurement device which can rapidly, accurately, and also easily measure the arterial oxygen saturation and the body temperature of a subject regardless of the outside environment of the subject. [Solution] A vital data measurement device 100 comprises a SpO₂ measurement unit 1, a temperature measurement unit 33, and a display unit 3. The SpO₂ measurement unit 1 comprises light emitting units 31, 32 and light reception units 11, 12. The light reception units 11, 12 receive red light and infrared light emitted from the light emitting units 31, 32 through the skin of the subject. The SpO₂ measurement unit 1 optically measures the SpO₂ and the pulse rate through the skin of the subject. The temperature measurement unit 33 receives the infrared light emitted from the skin of the subject. The temperature measurement unit 33 optically measures the body temperature. The temperature measurement unit 33 optically measures the body temperature. The display unit 3 displays the SpO₂, the pulse rate, and the body temperature.

Description

Vital data measuring device

The present invention relates to a vital data measuring device suitable for measuring the arterial oxygen saturation of a subject.

Recently, vital data measurement has been attracting attention in order to grasp the health condition of human beings. For example, in the medical treatment of pneumonia caused by a virus, aspiration, etc., a pulse oximeter that measures the body temperature together with the arterial oxygen saturation (SpO ₂ : almost the same value as the arterial oxygen saturation SaO ₂ ) is useful. This has been recognized as extremely important, for example, in the early stages of infection with the "new coronavirus" that occurred in 2020. While the medical field is confused by infections caused by viruses, bacteria, etc., if people who are not limited to medical personnel can easily use the pulse oximeter, for example, it is possible to grasp the health condition at home. Is possible. In addition, even when an infection occurs, early treatment can be promoted in the medical field and the like, which in turn can contribute to reduction of medical burden and case fatality rate.

In addition, there is an increasing need for a vital data measuring device capable of measuring arterial oxygen saturation and body temperature (see, for example, Patent Document 1). The vital data measuring device described in Patent Document 1 is inserted from the shoulder opening of the subject to the armpit (axillary region), measures the arterial oxygen saturation of the subject using the "axillary artery", and the body temperature of the subject is determined by using a thermista. Measure using the axillary thermometer used.

Japanese Unexamined Patent Publication No. 2020-44189

The technique disclosed in Patent Document 1 solves the situation that when the measurement site of the subject is the fingertip or the forehead, the arterial oxygen saturation and the body temperature cannot be accurately measured depending on the patient's condition (see paragraph 0009). ). Therefore, the vital data measuring device disclosed in Patent Document 1 measures the temperature of the skin on the axillary surface of the subject by using an axillary thermometer using a thermistor (see paragraph 0038). Arterial oxygen saturation is measured using the subject's "axillary artery" using a light-based pulse oximeter (see paragraph 0039).

However, in Patent Document 1, since the arterial oxygen saturation is measured by using the "axillary artery" of the subject, it cannot always be said that the arterial oxygen saturation can be measured quickly and accurately. For example, when the axillary artery is used, the measurement result is likely to be affected by the subject's extracorporeal environment such as the change in skin temperature due to the subject's clothing condition, the presence or absence of a hanging on the subject, and the change in illuminance at the measurement site. .. This situation is the same not only when it is used during medical work by a medical worker but also when it is used by a general person. In addition, if the vital data measuring device is inserted into the axilla of the subject for each measurement, it will be one of the factors that increase the burden of medical care for the medical staff, such as the troublesome wearing and the increased chance of contact with the subject. ..

Therefore, the present invention has been devised in view of the above-mentioned problems, and an object thereof is to quickly and accurately determine the arterial oxygen saturation and body temperature of a subject regardless of the subject's extracorporeal environment. Moreover, it is an object of the present invention to provide a vital data measuring device capable of easily measuring.

The vital data measuring device according to the first invention is a vital data measuring device for measuring arterial oxygen saturation of a subject, and is a light emitting unit that emits red light and infrared light, and a light emitting unit that is emitted from the light emitting unit and is the subject. It has a first light receiving section that receives red light and infrared light transmitted or reflected through the skin of the subject, and uses the red light and infrared light received by the first light receiving section to determine the arterial oxygen saturation of the subject. It also has an arterial oxygen saturation measuring unit that optically measures the pulse rate based on the pulsation of the subject, and a second light receiving unit that receives infrared light radiated from the skin of the subject. It is provided with a body temperature measuring unit that optically measures the body temperature of the subject using the received infrared light, and a display unit that displays the arterial oxygen saturation of the subject, the pulse rate of the subject, and the body temperature of the subject. There is.

The vital data measuring device according to the second invention is, in the first invention, the vital data measuring device is rotatably provided with a first housing, a support shaft, and the first housing via the support shaft. A second housing that sandwiches the measurement site of the subject together with the first housing is provided, and the first housing and the second housing are located on one end side with the support shaft in between. A sandwiching portion in which the measurement site of the subject is sandwiched, and an opening / closing operation unit capable of opening / closing the sandwiched portion by an operator who operates the vital data measuring device are included on the other end side of the support shaft. The arterial oxygen saturation measuring unit is provided in the sandwiching unit.

In the second invention, the vital data measuring device according to the third invention further includes a power switch for turning on / off the vital data measuring device, and the power switch is provided in the opening / closing operation unit.

In the third aspect of the invention, the vital data measuring device according to the fourth invention has a first relative surface facing the second housing and a first open surface not facing the second housing. The second housing has a second relative surface facing the first housing and a second open surface not facing the first housing, and the opening / closing operation unit has the first relative surface. The surface is separated from the second relative surface, the power switch is provided on the first relative surface or the second relative surface, and the power switch provided on the first relative surface or the second relative surface is the above. The vital data measuring device can be turned on and off in conjunction with the opening / closing operation of the opening / closing operation unit by the operator.

The vital data measuring device according to the fifth invention further includes, in the third invention, a strap attachment portion on the vicinity of the power switch to which a strap can be attached.

In the second invention, the vital data measuring device according to the sixth invention has a first relative surface facing the second housing and a first open surface not facing the second housing. The second housing has a second relative surface facing the first housing and a second open surface not facing the first housing, and the second light receiving unit has the first light receiving unit. It is provided on the open surface or the second open surface.

In the sixth invention, the vital data measuring device according to the seventh invention is provided on the first open surface or the second open surface, and has two housings, the first housing and the second housing. Of these, the second light receiving portion is provided in a housing that is not provided.

In the first invention, the vital data measuring apparatus according to the eighth invention is described in that, when the pulsation of the subject is detected by the arterial oxygen saturation measuring unit, (a) the arterial oxygen saturation, (a). b) The pulse rate and (c) the body temperature are displayed collectively, or the collective display of the (a) and (b) and the single display of the (c) are switched and displayed, and the arterial oxygen is displayed. When the pulsation of the subject is not detected by the saturation measuring unit, the above (c) is displayed independently.

The vital data measuring device according to the ninth aspect of the invention further includes, in the first invention, a mounting detection unit for detecting whether or not the vital data measuring device is mounted on the measurement site of the subject.

In the ninth aspect of the invention, the vital data measuring apparatus according to the tenth invention has the subject's measurement site detected by the wearing detection unit being (d) the subject's fingertip, (e) the subject's ear canal, and (f) the subject. The axilla of the subject and (g) at least two or more under the tongue of the subject are included, and the attachment detection unit determines any one of the above (d) to (g) as the attachment site of the subject. , The display unit displays the body temperature of the subject and the determined wearing site of the subject.

In the first invention, the body temperature measuring unit may further optically measure the body temperature of the subject remotely.

Further, in the first invention, the storage unit capable of storing data, the calculation unit capable of performing calculations using the data stored in the storage unit, and the arterial oxygen saturation measuring unit are wetted. A mode switching unit that switches between a dry mode and a wet mode according to the situation is further provided, and the storage unit converts the measured arterial oxygen saturation of the subject into a first conversion that converts the measured arterial oxygen saturation into the arterial oxygen saturation at the time of drying. The table and the second conversion table for converting the measured arterial oxygen saturation of the subject into the arterial oxygen saturation at the time of wetting are stored, and the calculation unit stores the measured subject in the dry mode. The arterial oxygen saturation of the subject is converted into the arterial oxygen saturation at the time of drying based on the first conversion table, and the measured arterial oxygen saturation of the subject in the wet mode is converted into the second conversion table. Based on this, the arterial oxygen saturation at the time of wetness is converted, and the display unit displays the arterial oxygen saturation at the time of dryness converted based on the first conversion table in the dry mode, and the wet mode. At that time, the arterial oxygen saturation at the time of wetting calculated based on the second conversion table may be displayed. In such a case, the mode switching unit includes an electric resistance measuring unit that measures the electric resistance of the measurement site of the subject, and the mode switching unit sets the dry mode and the wet mode by the electric resistance measuring unit. It may be switched based on the measured electrical resistance of the subject's measurement site.

Further, in the third invention, the first housing has a first relative surface facing the second housing and a first open surface not facing the second housing, and the second housing is The power switch has a second relative surface facing the first housing and a second open surface not facing the first housing, and the power switch is provided on the first open surface or the second open surface. You may make it.

Further, in the third invention, the first housing has a first relative surface facing the second housing and a first open surface not facing the second housing, and the second housing is It has a second relative surface facing the first housing and a second open surface not facing the first housing, and the opening / closing operation unit is inclined diagonally from the horizontal direction in the first housing. The power switch has a first tapered portion formed on the surface and a second tapered portion formed so as to be inclined diagonally from the horizontal direction in the second housing, and the power switch is the first tapered portion or the second tapered portion. It may be provided in the tapered portion.

Further, in the second invention, the power supply provided in the first housing or the second housing and the power supply unit for supplying power from one housing provided with the power supply to the other housing are provided. Further, the power supply unit may supply power from the one housing to the other housing by using electromagnetic induction.

Further, in the second invention, the power supply provided in the first housing or the second housing and the power supply unit for supplying power from one housing provided with the power supply to the other housing are provided. Further, the power supply unit may supply power from the one housing to the other housing by using a waterproof contact type electric contact.

Further, in the first invention, the body temperature measuring unit measures the difference temperature based on the environmental temperature measuring unit that measures the environmental temperature in the vital data measuring device and the infrared light emitted from the skin of the subject. A differential temperature measuring unit and a body temperature calculating unit that calculates the body temperature of the subject based on the environmental temperature and the differential temperature may be included.

Further, in the seventh invention, the first housing includes a first communication unit, the second housing includes a second communication unit capable of communicating with the first communication unit, and the body temperature measuring unit is provided. And the display unit may transmit and receive information about the body temperature of the subject by wireless communication via the first communication unit and the second communication unit.

Further, in the eighth invention, when the temperature measured by the body temperature measuring unit is in the range of 32 to 42 ° C., the display unit may display the measured temperature as the body temperature of the subject. ..

Further, in the second invention, the light emitting unit is provided on the first relative surface or the second relative surface, and the first light receiving unit is provided on the first relative surface or the second relative surface. Of the two housings of the first housing and the second housing, the housing not provided with the light emitting unit is provided, and the arterial oxygen saturation measuring unit is made to be a transmission type. May be good.

Further, in the second invention, the light emitting unit is provided on the first relative surface or the second relative surface, and the first light receiving unit is provided on the first relative surface or the second relative surface. Of the two housings of the first housing and the second housing, the housing provided with the light emitting unit is provided, and the arterial oxygen saturation measuring unit may be of the reflective type. good.

According to the embodiment of the present invention, it is possible to provide a vital data measuring device capable of measuring the arterial oxygen saturation and body temperature of a subject quickly, accurately and easily regardless of the subject's extracorporeal environment.

1 (a) is a perspective view of the vital data measuring device viewed from the front, FIG. 1 (b) is a perspective view of the vital data measuring device viewed from the side, and FIG. 1 (c) is a perspective view. It is a side view of the vital data measuring apparatus. FIG. 2 is a block configuration diagram of a vital data measuring device to which the present invention is applied. FIG. 3 is a diagram for explaining the formation positions of the infrared light receiving unit and the red light receiving unit in the SpO ₂ measuring unit. It is a figure for demonstrating the operation example of the vital data measuring apparatus to which this invention is applied. FIG. 5 is a diagram showing an example of a template showing the relationship between arterial oxygen saturation (SpO ₂ ) and the ratio of red light (R) to infrared light (IR) (R / IR). FIG. 6 is a diagram showing a display example by the display unit. FIG. 7 is a diagram showing a perspective view in the case of acquiring arterial oxygen saturation and pulse rate based on reflected light of infrared light and red light. FIG. 8 is a block configuration diagram in the case of acquiring arterial oxygen saturation and pulse rate based on reflected light of infrared light and red light. FIG. 9 is a diagram for explaining an operation example when the power is turned on and off. FIG. 10 is a diagram showing a form in which the power switch is provided in the tapered portion. FIG. 11 is a diagram showing a mode in which an operator's finger is inserted into a gap between tapered portions and the power switch is directly pressed. FIG. 12 is a diagram showing an example in which a strap is provided in a vital data measuring device to which the present invention is applied. FIG. 13 is a diagram showing an example in which the temperature measuring unit is provided on the second open surface. FIG. 14 is a diagram for explaining an arrangement example of the contact sensor. FIG. 15 is a diagram showing an example of notifying the measured portion of the recognized subject through an icon on the display unit. FIG. 16 is a diagram for explaining a case where power transmission between a power transmitting unit and a power receiving unit is performed by electromagnetic induction. FIG. 17 is a diagram showing other embodiments of the power transmitting unit and the power receiving unit.

Hereinafter, the vital data measuring device to which the present invention is applied will be described with reference to the drawings. In each figure, common reference numerals are given to common parts, and duplicate explanations are omitted.

FIG. 1 is a diagram showing an external configuration of a vital data measuring device 100 to which the present invention is applied, and FIG. 1 (a) is a perspective view of the vital data measuring device 100 viewed from the front, FIG. 1 (b). Is a perspective view of the vital data measuring device 100 viewed from the side, and FIG. 1 (c) is a side view of the vital data measuring device 100.

The vital data measuring device 100 includes, for example, a first housing 41, a support shaft 51, and a second housing 42. The vital data measuring device 100 to which the present invention is applied is configured by a so-called clip type in which the first housing 41 and the second housing 42 are rotatably configured with the support shaft 51 as the central axis. That is, the second housing 42 sandwiches the measurement site of the subject, for example, the fingertip as the measurement site of the subject together with the first housing 41.

The first housing 41 and the second housing 42 include a holding portion 52 on one end side with the center of the support shaft 51 in between, and an opening / closing operation unit 53 on the other end side with the center of the support shaft 51 in between. .. That is, the opening / closing operation unit 53 may be arranged at any place as long as it is arranged on the other end side of the support shaft 51. The pinching portion 52 holds a measurement site of the subject, for example, a fingertip which is a measurement site of the subject. The opening / closing operation unit 53 can be gripped by the finger of the operator who operates the vital data measuring device 100. The operator can open and close the holding portion 52 by grasping and pressing the opening / closing operation portion 53.

The first housing 41 is molded into a desired shape using a plastic resin or the like, and has a first relative surface 411 facing the second housing 42 and a first opening not facing the second housing 42. It has a surface 412. A display unit 12 is provided on the first open surface 412.

The second housing 42 is molded into a desired shape using a plastic resin or the like, and has a second relative surface 421 facing the first housing 41 and a second open surface not facing the first housing. It has 422 and.

The sandwiching portion 52 is provided with a SpO ₂ measuring unit (arterial oxygen saturation measuring unit) 1. Further, the opening / closing operation unit 53 is provided with a power switch 15 for turning on / off the vital data measuring device 100. In the example shown in FIG. 1, the power switch 15 will be described by taking as an example the case where the power switch 15 is provided on the first open surface 412 in the first housing 41.

As shown in FIG. 1 (c), the opening / closing operation unit 53 has a first tapered portion 532 formed so as to be inclined diagonally from the horizontal direction in the first housing 41, and the opening / closing operation unit 53 from the horizontal direction in the second housing 42. It has a second tapered portion 533 formed so as to be inclined diagonally. The gap 531 between the first taper portion 532 and the second taper portion 533 is separated from each other in a no-load state in which the opening / closing operation portion 53 is not pressed. On the other hand, in this no-load state, the first relative surface 411 and the second relative surface 421 are in a state of being close to each other or in contact with each other.

On the other hand, when the opening / closing operation unit 53 is gripped and pressed, the first open surface 412 in the opening / closing operation unit 53 is pressed downward as shown in FIG. 1 (c). As a result, as a result of the first housing 41 rotating with respect to the second housing 42 about the support shaft 51, as shown in FIG. 1 (b), the first taper portion 532 and the second taper The portions 533 are in close proximity to each other or in contact with each other. On the other hand, in this pressed state, the first relative surface 411 and the second relative surface 421 are separated from each other. As a result, the measurement site of the subject can be inserted between the first relative surface 411 and the second relative surface 421 separated from each other, and the vital data can be measured.

FIG. 2 is a schematic block diagram showing an example of the block configuration of the vital data measuring device 100 according to the first embodiment.

The first housing 41 includes a display unit 12, a communication unit 13, a connector 14, a power switch 15, an optical communication receiving unit 16 connected to the infrared light receiving unit 10, an infrared light receiving unit 10, and an infrared light receiving unit 10. The oxygen saturation calculation circuit 17 connected to the red light light receiving unit 11 is connected to the control circuit 18, the battery 19 further connected to the control circuit 18, and the power transmission unit 20 connected to the control circuit 18 and the battery 19. And have.

The second housing 42 includes a light emission control circuit 36 to which the infrared light light emitting unit 31 and the red light light emitting unit 32 are connected, a body temperature calculation circuit 37 to which the temperature measuring unit 33 is connected, and an electric resistance measuring unit 35. It includes a connected control circuit 38, a power receiving unit 39 connected to the control circuit 38, a communication unit 25, and a contact sensor 26.

The above-mentioned SpO ₂ measuring unit 1 is formed by the infrared light receiving unit 10, the red light receiving unit 11, the infrared light emitting unit 31 and the red light emitting unit 32.

The display unit 12 is composed of a liquid crystal display, an electric bulletin board, or the like, and displays various information to the subject. The type of information displayed by the display unit 12 is limited to displaying various information measured about the subject's living body, such as the arterial oxygen saturation of the subject, the pulse rate of the subject, and the body temperature of the subject. It displays various information such as the current operating status, the remaining status of the battery 19, the communication status, and the mounting site of the subject. Information is displayed by the display unit 12 based on the control by the control circuit 18. As shown in FIG. 1B, the display unit 12 is premised on being provided on the first open surface 412, but is not limited to this, and is provided on the second open surface 422. May be good.

The communication unit 13 is a device for performing wireless communication with the communication unit 25 in the second housing 42. The communication unit 13 receives information that cannot be acquired by the first housing 41 and that can be acquired by the second housing 42 from the communication unit 25 of the second housing 42. Further, the communication unit 13 may perform wireless communication with an external device or various gateway devices. The communication unit 13 has an antenna mounted inside for transmitting and receiving radio waves. Further, the communication unit 13 is a circuit for converting an electric signal sent from the control circuit 18 into a radio wave, or converting a radio wave received from an external device or a second housing 42 into an electric signal and sending it to the control circuit 18. Is also implemented.

The connector 14 is an interface circuit for performing wired communication with an external device. A wired cable (not shown) is connected to the connector 14, and various information is received from an external device and output to the control circuit 18. Further, the connector 14 transmits various information input from the control circuit 18 to an external device via a wired cable (not shown).

The power switch 15 is composed of a button or the like for turning on / off the vital data measuring device 100. When the power switch 15 is pressed, the signal transmitted in response to the pressing reaches the control circuit 18. When the control circuit 18 receives the signal transmitted by being pressed by the power switch 15, the control circuit 18 executes control for turning on or off the power of the vital data measuring device 100.

The infrared light receiving unit 10 is a light receiving element for receiving infrared light transmitted or reflected through the skin of the subject and performing photoelectric conversion thereof. The infrared light receiving unit 10 outputs the photoelectrically converted electric signal to the optical communication receiving unit 16 and the oxygen saturation calculation circuit 17.

The red light light receiving unit 11 is a light receiving element for receiving red light transmitted or reflected through the skin of the subject and photoelectrically converting the red light. The red light receiving unit 11 outputs this photoelectrically converted electric signal to the oxygen saturation calculation circuit 17.

The optical communication receiving unit 16 receives a signal based on infrared light supplied from the infrared light receiving unit 10. If the transmission information is superimposed on the infrared light from the infrared light emitting unit 31 in the second housing 42, the optical communication receiving unit 16 reads the superimposed transmission information and uses this as a control circuit. Send to 18.

The oxygen saturation calculation circuit 17 receives a signal based on infrared light supplied from the infrared light receiving unit 10 and also receives a signal based on red light supplied from the red light receiving unit 11. The oxygen saturation calculation circuit 17 uses these signals based on red light and signals based on infrared light to optically measure the arterial oxygen saturation of the subject and the pulse rate based on the pulsation of the subject. The oxygen saturation calculation circuit 17 outputs the measured arterial oxygen saturation and pulse rate of the subject to the control circuit 18.

The control circuit 18 is a so-called central control unit for controlling each component in the first housing 41. The display unit 12, the communication unit 13, the connector 14, the optical communication receiving unit 16, the oxygen saturation calculation circuit 17, and the power transmission unit 20 connected to the control circuit 18 all operate based on the control of the control circuit 18. do. The control circuit 18 may include a CPU (Central Processing Unit) and a memory connected to each CPU. The memory stores tables, programs, and the like necessary for controlling the hardware resources of the entire first housing 41.

The battery 19 is a battery for supplying electric power to the first housing 41, and may be composed of a commercially available button battery or a dry battery, but the battery 19 is not limited to this and can be charged. It may be composed of various types of batteries. The battery 19 is housed in a storage pack (not shown) that can be stored along the positive and negative poles, and when the power is turned on by the power switch 15, electricity flowing through the positive and negative poles is transferred to the control circuit 18. It flows to each component mounted in the first housing 41 via the above, and the operation becomes feasible. The battery 19 supplies electric power to the electric power transmission unit 20.

The power transmission unit 20 transmits power to the power reception unit 39 in the second housing 42 under the control of the control circuit 18.

The infrared light emitting unit 31 emits infrared light under the control of the emission control circuit 36. The infrared light emitted by the infrared light emitting unit 31 irradiates the skin of the subject.

The red light emitting unit 32 emits red light under the control of the light emitting control circuit 36. The red light emitted by the red light emitting unit 32 will irradiate the skin of the subject.

The temperature measuring unit 33 has an environmental temperature measuring unit 33a and a differential temperature measuring unit 33b. The environmental temperature measuring unit 33a measures the environmental temperature via the built-in thermistor. Since the thermistor itself is mounted in the second housing 42, the environmental temperature detected by the environmental temperature measuring unit 33a via the thermistor can be said to be the temperature inside the second housing 42. The environmental temperature measuring unit 33a outputs the detected environmental temperature to the body temperature calculation circuit 37. Further, the differential temperature measuring unit 33b includes a light receiving element that receives infrared light radiated from the skin, which is the measurement site of the subject. The difference temperature measuring unit 33b measures the difference temperature based on the received infrared light. The difference temperature is the difference between the temperature of the environmental temperature measured by the environmental temperature measuring unit 33a and the temperature of the measurement site of the subject (such as the skin of the subject). The difference temperature measuring unit 33b outputs the measured difference temperature to the body temperature calculation circuit 37.

The electrical resistance measuring unit 35 measures the electrical resistance of the measurement site of the subject. In this electric resistance measuring unit, a weak current is passed between the two terminals, the skin, which is the measurement site of the subject, is brought into contact between the terminals, and the change in resistance between the terminals is read. When the measurement site is the skin of the fingertip of the subject, and the electrical resistance of the skin of the fingertip is low, it is determined that the fingertip is moist, that is, a so-called moist state. When this wet state is determined, it can be estimated that the subject is, for example, taking a bath. On the other hand, when the electrical resistance of the skin of the fingertip is high, it is determined that the fingertip is dry, that is, a so-called dry state. When this dry state is determined, it can be estimated that the subject is not, for example, in the bath. The electric resistance measuring unit 35 outputs the measured electric resistance to the control circuit 38.

Under the control of the control circuit 38, the light emission control circuit 36 issues a command for emitting infrared light from the infrared light emitting unit 31 and a command for emitting red light from the red light emitting unit 32.

In the body temperature calculation circuit 37, the ambient temperature detected by the environmental temperature measuring unit 33a is input, and the differential temperature measured by the differential temperature measuring unit 33b is input. The body temperature calculation circuit 37 obtains the sum of the environmental temperature and the difference temperature, and uses this as the temperature of the measurement site of the subject to be measured. The body temperature calculation circuit 37 outputs the calculated body temperature information to the control circuit 38.

The control circuit 38 is a so-called central control unit for controlling each component in the second housing 42. The light emission control circuit 36, the body temperature calculation circuit 37, the electric resistance measuring unit 35, and the power receiving unit 39 connected to the control circuit 38 all operate based on the control by the control circuit 38. The control circuit 38 may include a memory in which a CPU is mounted and is connected to the CPU. The memory stores tables, programs, and the like necessary for controlling the hardware resources of the entire second housing 42.

The communication unit 25 is a device for performing wireless communication with the communication unit 13 in the first housing 41. The communication unit 25 transmits the body temperature information calculated by the body temperature calculation circuit 37 to the communication unit 13 in the first housing 41 as the information that can be acquired in the second housing 42.

The contact sensor 26 is composed of a sensor for sensing whether or not the measurement site of the subject is in contact. When the contact sensor 26 senses the contact of the measurement site of the subject, the contact sensor 26 notifies the control circuit 38 to that effect.

As shown in FIG. 3, the infrared light receiving unit 10 and the red light receiving unit 11 in the SpO ₂ measuring unit 1 are provided on the first relative surface 411 in the first housing 41. Further, the infrared light emitting unit 31 and the red light emitting unit 32 in the SpO ₂ measuring unit 1 are provided on the second relative surface 421 in the second housing 42. As a result, the infrared light emitting unit 31 and the red light emitting unit 32 are oriented upward and oriented toward the infrared light receiving unit 10 and the red light receiving unit 11, and these infrared light emitting unit 31 and the red light emitting unit 32 are oriented. The infrared light receiving unit 10 and the red light receiving unit 11 are configured to face each other. The infrared light emitted upward from the infrared light emitting unit 31 is received by the infrared light receiving unit 10 facing it, and the red light emitted upward from the red light emitting unit 32 faces it. The light is received by the red light light receiving unit 11.

Therefore, as shown in FIG. 3, when the finger F is inserted into the holding portion 52 as the measurement site of the subject, the infrared light and the red light emitted upward from the infrared light emitting unit 31 and the red light emitting unit 32 are used. Penetrates and passes through the finger F. Then, the infrared light and the red light transmitted and passed through the finger F are received by the infrared light receiving unit 10 and the red light receiving unit 11, respectively.

Actually, when the vital data is measured by the vital data measuring device 100 to which the present invention is applied, as shown in FIG. 4, the infrared light is emitted from the infrared light emitting unit 31 under the control of the light emitting control circuit 36. Is emitted, and red light is emitted from the red light emitting unit 32. The emitted infrared light and red light pass through the finger F as the measurement site of the subject, the infrared light is received by the infrared light receiving unit 10, and the red light is received by the red light receiving unit 11. .. At this time, the infrared light and the red light do not all pass through the finger F, but a part of the light passes through the finger F without being irradiated, and a part of the light reflects the finger to receive the infrared light. And the red light is received by the light receiving unit 11.

The infrared light light receiving unit 10 outputs an electric signal obtained by photoelectrically converting infrared light to an oxygen saturation calculation circuit 17, and the red light light receiving unit 11 outputs an electric signal obtained by photoelectric conversion of red light to an oxygen saturation calculation circuit 17. Output to 17.

The oxygen saturation calculation circuit 17 obtains the arterial oxygen saturation and pulse rate of the subject based on the electric signals corresponding to the infrared light and the red light. As a method for determining the arterial oxygen saturation, the principle of a conventional pulse oximeter may be utilized, and the determination may be made based on the ratio (R / IR) of red light (R) to infrared light (IR). The infrared light and red light radiated to the measurement site (finger F) of the subject pass through tissues, arteries, and veins other than blood, and after being absorbed, the infrared light light receiving unit 10 and the red light light receiving unit 11 Is received by. At this time, by taking the changing component of the signal received by the infrared light receiving unit 10 and the red light receiving unit 11, the pulsating component of the arterial blood can be extracted, the pulse rate can be obtained, and the arterial blood can be obtained. Only arterial oxygen saturation can be obtained.

FIG. 5 shows an example of a template showing the relationship between arterial oxygen saturation (SpO ₂ ) and the ratio of red light (R) to infrared light (IR) (R / IR). As shown in FIG. 5, by investigating and determining the relationship of SpO ₂ for each R / IR in advance, SpO ₂ can be obtained by referring to this relationship with respect to the R / IR actually obtained. It becomes possible to ask. In the example of FIG. 5, when the ratio (R / IR) of red light (R) to infrared light (IR) is 0.4, SpO ₂ is 100%.

The oxygen saturation calculation circuit 17 sends the obtained pulse rate of the subject and the arterial oxygen saturation to the control circuit 18, and the control circuit 18 displays the pulse rate of the subject and the arterial oxygen saturation on the display unit 12. Control to do so.

In addition to the infrared light emitted from the infrared light emitting unit 31, infrared light is always emitted from the skin of the subject. The emitted infrared light is detected by the temperature measuring unit 33 (difference temperature detecting unit 33b). The body temperature calculation circuit 37 obtains the body temperature of the subject based on the electric signal corresponding to the infrared light radiated from the skin of the subject. Utilizing the fact that the temperature of the object is controlled by the amount of energy of the infrared light emitted by the object, the body temperature calculation circuit 37 detects the infrared light received by the temperature measuring unit 33 and converts it into the radiation temperature. This converted radiation temperature is considered to be the difference temperature according to the body temperature of the subject. The body temperature calculation circuit 37 adds the above-mentioned environmental temperature to the obtained difference temperature of the subject, and uses this as body temperature information under the control of the control circuit 38, via the communication unit 25, in the first housing 41. Send by wireless communication to. The first housing 41 controls the body temperature information sent from the second housing 42 to be displayed on the display unit 12 under the control of the control circuit 18.

Since body temperature information can be sent to the first housing 41 by wireless communication via such a communication unit 25, it does not require any external wiring and can be configured to have excellent waterproofness, and when taking a bath, it can be configured. Can also be measured.

Further, the body temperature information may be superimposed on the infrared light and transmitted via the infrared light emitting unit 31, and this infrared light is received by the infrared light receiving unit, and the optical communication receiving unit 16 is used. Read in. Similarly, in this method as well, since the body temperature information can be sent to the first housing 41 by wireless communication, no external wiring is particularly required, and the configuration is excellent in waterproofness.

FIG. 6 shows a display example by the display unit 12. Under the control of the control circuit 18, the display unit 12 displays the subject's SpO ₂ (arterial oxygen saturation), the subject's heart rate, and the subject's body temperature (Body Temp.). When the arterial oxygen saturation and pulse rate are obtained by the oxygen saturation calculation circuit 17, and the body temperature is obtained by the body temperature calculation circuit 37, all of them are collectively displayed via the display unit 12 or the arterial blood oxygen. The saturation level and pulse rate are displayed collectively, and the body temperature is displayed independently. That is, according to the present invention, each of the subject's arterial oxygen saturation, pulse rate, and subject's body temperature can be measured. Therefore, for example, it is possible to obtain the advantage that it is not necessary to carry the pulse oximeter and the thermometer separately.

On the other hand, when the pulsation of the subject was not detected by the oxygen saturation calculation circuit 17, the arterial oxygen saturation and the pulse rate could not be obtained, and only the body temperature was obtained by the body temperature calculation circuit 37. Only the body temperature is independently displayed via the display unit 12. Since the temperature measuring unit 33 may detect only the infrared light radiated from the skin of the subject without emitting infrared light or red light, in such a case, pulsation can be obtained from the oxygen saturation calculation circuit 17. Since only the body temperature is detected, only the body temperature is displayed via the display unit 12. That is, according to the present invention, it can be used alone as a thermometer.

When the temperature measured by the body temperature calculation circuit 37 is in the range of 32 to 42 ° C., the measured temperature is displayed as the body temperature of the subject.

In the above-described embodiment, the infrared light receiving unit 10 and the red light receiving unit 11 in the SpO ₂ measuring unit 1 are provided on the first relative surface 411 in the first housing 41, and the SpO ₂ measuring unit 1 is provided. The case where the infrared light emitting unit 31 and the red light emitting unit 32 are provided on the second relative surface 421 of the second housing 42 has been described as an example. It is premised on the so-called transmissive type, which acquires arterial oxygen saturation and pulse rate based on transmitted light. The present invention is not limited to the above-mentioned form, and even if it is a so-called reflective type that acquires arterial oxygen saturation and pulse rate based on reflected light of infrared light and red light. good.

FIG. 7 shows a perspective view in the case of acquiring arterial oxygen saturation and pulse rate based on reflected light of infrared light and red light. The infrared light receiving unit 10 and the red light receiving unit 11 in the SpO ₂ measuring unit 1 are provided on the second relative surface 421 in the second housing 42.

Further, the infrared light emitting unit 31 and the red light emitting unit 32 in the SpO ₂ measuring unit 1 are also provided on the second relative surface 421 in the second housing 42. That is, the infrared light receiving unit 10, the red light receiving unit 11, the infrared light emitting unit 31, and the red light emitting unit 32 are not separately provided in the first housing 41 and the second housing 42, but all of them are the first. 2 Mount all on the housing 42 side. As a result, the infrared light receiving unit 10 and the red light receiving unit, and the infrared light emitting unit 31 and the red light emitting unit 32 are all configured to be oriented in the same direction. The infrared light emitted from the infrared light emitting unit 31 reflects the skin, which is the measurement site of the subject, and is received by the infrared light receiving unit 10. The red light emitted from the red light emitting unit 32 reflects the skin, which is the measurement site of the subject, and is received by the red light receiving unit 11.

FIG. 8 shows a block configuration in the case of acquiring arterial oxygen saturation and pulse rate based on such reflected light of infrared light and red light. In FIG. 8, the same components and members as those in the block configuration of FIG. 2 are designated by the same reference numerals, and the description below will be omitted.

In the embodiment shown in FIG. 8, the configurations of the infrared light receiving unit 10, the red light receiving unit 11, the optical communication receiving unit 16, and the oxygen saturation calculation circuit 17 are all not the first housing 41 but the second housing. It is mounted on the body 42 side. The optical communication receiving unit 16 and the oxygen saturation calculation circuit 17 are connected to the control circuit 38.

In such a case, when the vital data is actually measured, the infrared light received by the infrared light receiving unit 10 and the red light received by the red light receiving unit 11 are the oxygen saturation calculation circuit 17 as described above. In, the arterial oxygen saturation and the pulse rate are calculated. The calculated arterial oxygen saturation and pulse rate are transmitted to the communication unit 13 in the first housing 41 via the communication unit 25 under the control of the control circuit 38, and the arterial blood oxygen received by the communication unit 13 is received. The degree of saturation and the pulse rate will be displayed via the display unit 12.

In the reflection type, the infrared light receiving unit 10, the red light receiving unit 11, the infrared light emitting unit 31, and the red light emitting unit 32 may all be mounted on the first housing 42. .. In such a case, the arterial oxygen saturation and the pulse rate can be detected in the same manner.

As described above, according to the vital data measuring device 100 to which the present invention is applied, the influence of the subject's extracorporeal environment such as the wearing condition of the subject, the change in the skin temperature due to the presence or absence of a hanging on the subject, the change in the illuminance at the measurement site, and the like. It is possible to measure arterial oxygen saturation, pulse rate, and body temperature at the same time quickly, accurately, and easily.

Further, according to the vital data measuring device 100 to which the present invention is applied, the body temperature of the subject is optically measured. Therefore, the operator can measure the body temperature of the subject, for example, remotely. If telemetry of body temperature becomes possible, the operator can minimize contact with the subject and is hygienic. This contributes to reducing the burden of medical care on medical staff. Further, the vital data measuring device 100 does not require an act of pinching the body temperature, for example, in the axilla. Therefore, when measuring the body temperature, there is no troublesome wearing or the like. This also contributes to reducing the medical burden on medical staff.

Next, a case where the power is turned on and off in the vital data measuring device 100 to which the present invention is applied will be described.

When turning the power on and off, as shown in FIG. 9A, the power switch 15 provided on the first open surface 412 of the first housing 41 is pressed. The power switch 15 is provided on the opening / closing operation unit 53, and the opening / closing operation unit 53 is provided on the other end side from the support shaft 51.

When the power switch 15 is pressed, the power of the vital data measuring device 100 is turned on, and at the same time, as shown in FIG. 9B, the first housing 41 is the first housing 41 centered on the support shaft 51. As a result of rotating with respect to the two housings 42, the first tapered portion 532 and the second tapered portion 533 are close to each other, and the first relative surface 411 and the second relative surface 421 can be separated from each other. .. As a result, the measurement site of the subject can be inserted between the first relative surface 411 and the second relative surface 421 that are separated from each other.

That is, since the power on by pressing the power switch 15 and the operation of inserting the measurement site can be combined with one pressing operation, the convenience of operation can be enhanced. In medical institutions, the power is often turned on by pressing the power switch 15, and the power is turned on in conjunction with the opening / closing operation of the opening / closing operation unit 53. can.

The same applies when the power is turned off, and the operation of turning off the power by pressing the power switch 15 and the operation of removing the measurement site can be combined with one pressing operation.

The power switch 15 may be provided on the second open surface 422 of the second housing 42, but even in such a case, the above-mentioned desired effect can be realized by the same operation.

FIG. 10A shows a form in which the power switch 15 is provided on the second tapered portion 533. The first tapered portion 532 is provided with a convex portion 55 that is convex downward. Even in such a case, the first open surface 412 in the opening / closing operation unit 53 is similarly pressed downward. As a result, as a result of the first housing 41 rotating with respect to the second housing 42 about the support shaft 51, as shown in FIG. 10B, the first taper portion 532 and the second taper The power switch 15 can be turned on by pressing the power switch 15 by the protrusions 55, which are close to each other with the parts 533. As a result, the power can be turned on and off in conjunction with the opening / closing operation of the opening / closing operation unit 53. By the way, it goes without saying that the same effect can be obtained even if the configuration of the convex portion 55 is omitted.

Of course, the same effect can be said when the power switch 15 is provided on the first tapered portion 532 and the convex portion 55 is provided on the second tapered portion 533.

Further, instead of pressing the first open surface 412 of the opening / closing operation portion 53 downward, as shown in FIG. 11, the operator's finger is inserted into the gap 531 between the first taper portion 532 and the second taper portion 533. It is also possible to directly press the power switch 15 by inserting. In such a configuration, the power switch 15 is arranged in a narrow gap between the first taper portion 532 and the second taper portion 533, so that when the subject or the caregiver carries the vital data measuring device 100, it is not suitable for clothes or the like. The power switch 15 is not easily pressed and the battery is not wasted.

FIG. 12 shows an example in which the strap 7 is provided in the vital data measuring device 100 to which the present invention is applied. When attaching the strap 7, it is premised that the strap attaching portion 71 to which the strap 7 can be attached is provided in the vicinity of the power switch 15 formed on the second tapered portion 532 in the second housing 42. .. The strap mounting portion 71 may be composed of a hole portion. As a result, when the user grips the strap 7 and the second housing 42, the first housing 41 and the second housing 42 can be stably gripped. Further, as shown in FIG. 12, it is possible to improve the convenience even when the power switch 15 is directly pressed.

FIG. 13 shows an example in which the temperature measuring unit 33 is provided on the second open surface 422. Thereby, the body temperature can be detected by bringing the second open surface 422 directly close to or in contact with the subject's armpit, armpit, arm or body. At this time, the display unit 12 may be provided on the first open surface 412. As a result, the operator (nurse, etc.) brings the temperature measuring unit 33 on the second open surface 422 close to the subject's body, and the body temperature displayed on the display unit 12 on the first open surface 412 on the opposite side thereof. Can be confirmed.

The temperature measuring unit 33 may be provided on the first open surface 412, and in such a case, the display unit 12 may be provided on the first open surface 412, but may be provided on the second open surface 422. Therefore, the same effect as described above can be exhibited. That is, in this embodiment, the display unit 12 is provided on the first open surface 412 or the second open surface 422, and is the temperature measuring unit of the two housings of the first housing 41 and the second housing 42. It is provided in the housing where 33 is not provided.

According to the vital data measuring device 100, a contact sensor 26 for indicating whether or not the subject is attached is further provided. When the contact sensor 26 detects that the subject is attached, the control circuit 38 controls the light emission control circuit 36 to emit infrared light and red light, and also controls the body temperature via the temperature measuring unit 33. The body temperature calculation circuit 37 is controlled so as to perform detection. As a result, the measurement of vital data can be started immediately after being attached to the subject.

FIG. 14 shows an example of an actual arrangement of the contact sensor 26. The contact sensor 26 may be composed of a sensor 261 that detects the pressure when sandwiched under the armpit. The sensor 261 is composed of a so-called pressure sensor that detects the magnitude of the applied pressure. The sensor 261 may measure the contact pressure when the first housing 41 and the second housing 42 are pressed against each other. Since the body temperature may be measured by sandwiching the vital data measuring device 100 under the armpit, the pressure generated when the vital data measuring device 100 is sandwiched under the armpit is detected by this sensor 261. As a result, when the pressure detected by the sensor 261 is equal to or higher than a predetermined value, it can be recognized that the pressure is sandwiched under the armpit. On the other hand, when the pressure detected by the sensor 261 is less than a predetermined value, it can be recognized that the body temperature is measured away from the body. This makes it possible to detect whether the vital data measuring device 100 is actually sandwiched under the armpit or measured at a position away from the body.

Further, the contact sensor 26 may be composed of a sensor 263, which is a so-called touch sensor, that detects contact with the skin such as the armpit, arm, and chin. By simply sensing whether or not the sensor has been touched by the sensor 263, it is possible to recognize whether or not the subject is currently in contact with the skin. When the detection value based on contact is less than a predetermined value by the sensor 263, it can be recognized that the subject is separated from the skin of the subject.

Further, the contact sensor 26 may be composed of a protrusion 262 to be inserted into the ear canal. The protrusion 262 has a built-in sensor that can detect that it has come into contact with the ear canal. When measuring body temperature through the ear canal, it is desirable that the protrusion 262 is made of a flexible resin. Further, since the temperature measuring unit 33 is further mounted on the protrusion 262, the body temperature can be measured from the ear canal through the protrusion 262. In such a case, a voice generation unit (not shown) may be provided, and various information may be transmitted by flowing the voice generated through the voice generation unit (not shown) from the protrusion 262 to the ear canal.

Each of these contact sensors 26 ( sensors 261, 263, protrusion 262) can detect whether or not the subject is attached to the measurement site and whether or not the subject is in contact with the measurement site. As a result, it is possible to switch between the body temperature measurement mode when the subject is attached to and in contact with the measurement site and the body temperature measurement mode when the subject is not attached to or in contact with the measurement site. In addition to this, each of these contact sensors 26 ( sensors 261, 263, protrusions 262) can recognize which measurement site of the subject is attached to and in contact with. In such a case, for example, as shown in FIG. 15, the measurement site of the recognized subject may be notified on the display unit 12 through the icon 121.

The subject's measurement site includes the subject's fingertips and sublingual in addition to the ear canal and axilla. These subjects include at least two or more measurement sites: (d) the subject's fingertips, (e) the subject's ear canal, (f) the subject's axilla, and (g) the subject's sublingual. The contact sensor 26 may determine any one of (d) to (g) as the attachment site of the subject. The display unit 12 displays the determined wearing site of the subject together with the body temperature of the subject.

Further, according to the present invention, the electric resistance of the measurement site of the subject may be measured via the electric resistance measuring unit 35. As a result, when the electrical resistance of the skin of the fingertip is low, it is determined that the fingertip is moist, that is, a so-called moist state. When this wet state is determined, it is presumed that the subject is, for example, bathing, and the mode shifts to the wet mode. On the other hand, when the electric resistance of the skin of the fingertip is high, it is presumed that the fingertip is dry, that is, a so-called dry state, and the mode shifts to the dry mode.

In executing such a wet mode and a dry mode, first, a first conversion table for converting the measured arterial oxygen saturation of the subject into the arterial oxygen saturation at the time of drying, and the measured arterial oxygen saturation of the subject A second conversion table for converting the degree into the arterial oxygen saturation at the time of wetting is stored in advance in a memory or the like (not shown) in the control circuit 18.

The oxygen saturation calculation circuit 17 converts the measured arterial blood oxygen saturation of the subject into the arterial oxygen saturation at the time of drying based on the stored first conversion table in the dry mode. Further, the oxygen saturation calculation circuit 17 converts the measured arterial blood oxygen saturation of the subject into the arterial oxygen saturation at the time of wetting based on the stored second conversion table in the wet mode.

The display unit 12 displays the arterial oxygen saturation at the time of drying calculated based on the first conversion table in the drying mode. In addition, the display unit 12 displays the arterial oxygen saturation in the wet mode calculated based on the second conversion table in the wet mode.

Generally, when taking a bath, the skin becomes soggy due to moisture. Since infrared light is absorbed by water, the amount of infrared light transmitted decreases as the water content of the skin increases. As a result, there is a problem that the ratio of red light to infrared light becomes high. As a result, the oxygen saturation may appear lower than it really is.

Therefore, in the present invention, in the case of the wet mode, a second conversion table is prepared so as to correct the amount of decrease in the amount of infrared light transmitted, and the second conversion table is read out at any time to obtain infrared light. Correct the decrease in the amount of transmission. As a result, it is possible to prevent the ratio of red light to infrared light from becoming low, and the caregiver can make a correct judgment. Since the first conversion table in the drying mode does not have a problem that the amount of infrared light transmitted by moisture is reduced, it is not necessary to introduce an item for correcting the decrease in infrared light.

By introducing such a wet mode, it is possible to measure the arterial oxygen saturation at the time of bathing of the elderly with high accuracy, especially in a long-term care facility. Elderly people may have an increased heart rate when taking a bath, and may also have an increased amount of exercise, resulting in a decrease in arterial oxygen saturation. Such danger can be detected with high accuracy in the wet mode.

It should be noted that the determination of the dry mode and the wet mode is not limited to the case where the above-mentioned electric resistance measuring unit 35 is used, and it is needless to say that the determination may be made by manually switching the switch.

Further, according to the present invention, power transmission between the power transmission unit 20 and the power reception unit 39 may be performed by electromagnetic induction. In such a case, as shown in FIG. 16, the power transmission coil 201 constituting the power transmission unit 20 and the power reception coil 391 constituting the power reception unit 39 are configured, and the power transmission coil 201 is used as the power reception coil 391. By bringing them close to each other, a magnetic field is generated by the power transmission coil 201 and the power reception coil 391, and power is supplied from the power transmission unit 20 to the power reception unit 39 by passing a current.

As a result, electric power can be transferred from the first housing 41 to the second housing 42, waterproofness can be improved, and cleaning becomes easy.

In addition to the case where the power transmission between the power transmission unit 20 and the power reception unit 3 is performed by electromagnetic induction, even if the power transmission is performed by normal wireless power supply or transmission via a transformer, the same improvement in waterproofness can be achieved. It becomes possible to connect.

FIG. 17 shows another embodiment of the power transmitting unit 20 and the power receiving unit 39. In this example, the power transmission unit 20 is composed of contacts built in the support shaft 51. The electricity from the battery 19 in the first housing 41 flows through the power transmission unit 20 configured by the contacts in the support shaft 51. The power receiving unit 39 is built inside the second housing 42, and can be electrically connected by contacting the contacts with the power receiving unit 39 composed of the contacts in the support shaft 51. Through these, it becomes possible to transmit electric power from the electric power transmitting unit 20 to the electric power receiving unit 39.

Also in the form shown in FIG. 17, the power transmission unit 20 and the power reception unit 39 are all built in the first housing 41, the support shaft 51, and the second housing 42, and are not exposed to the outside. Therefore, it is highly waterproof and easy to clean.

Although some of the embodiments of the present invention have been described above, some of the above embodiments are presented as examples and are not intended to limit the scope of the invention. The embodiments of the present invention can be carried out in various novel embodiments. Therefore, some of the above embodiments can be omitted, replaced, or modified in various ways without departing from the gist of the present invention. Such novel forms and modifications are included in the scope and gist of the present invention, as well as in the scope of the invention described in the claims and the equivalent of the invention described in the claims.

1 SpO ₂ Measuring unit 3 Power receiving unit 7 Strap 10 Infrared light receiving unit 11 Red light receiving unit 12 Display unit 13 Communication unit 14 Connector 15 Power switch 16 Optical communication receiving unit 17 Oxygen saturation calculation circuit 18 Control circuit 19 Battery 20 Power transmission unit 25 Communication unit 26 Contact sensor 31 Infrared light emission unit 32 Red light emission unit 33 Temperature measurement unit 33a Environmental temperature measurement unit 33b Difference temperature measurement unit 35 Electrical resistance measurement unit 36 Light emission control circuit 37 Body temperature calculation circuit 38 Control circuit 39 Power receiving unit 41 1st housing 42 2nd housing 51 Supporting shaft 52 Holding part 53 Opening / closing operation part 55 Convex part 71 Strap mounting part 100 Vital data measuring device 121 Icon 201 Transmission coil 261, 263 Sensor 262 Projection part 391 Power receiving coil 411 1st relative surface 412 1st open surface 421 2nd relative surface 422 2nd open surface 531 Gap 532 1st taper part 533 2nd taper part F finger

Claims (10)

1. A vital data measuring device that measures the arterial oxygen saturation of a subject.
   It has a light emitting unit that emits red light and infrared light, and a first light receiving unit that receives red light and infrared light that is emitted from the light emitting unit and transmitted or reflected through or reflected on the skin of the subject. An arterial oxygen saturation measuring unit that optically measures the arterial oxygen saturation of the subject and the pulse rate based on the pulsation of the subject using the red light and infrared light received by the light receiving unit.
   A body temperature measuring unit having a second light receiving unit that receives infrared light radiated from the skin of the subject and optically measuring the body temperature of the subject using the infrared light received by the second light receiving unit.
   A vital data measuring device including a display unit for displaying the arterial oxygen saturation of the subject, the pulse rate of the subject, and the body temperature of the subject.
2. The vital data measuring device is
   With the first housing
   Support axis and
   A second housing that is rotatably provided with the first housing via the support shaft and sandwiches the measurement site of the subject together with the first housing.
   Equipped with
   The first housing and the second housing are
   A holding portion in which the measurement site of the subject is held on one end side with the support shaft in between, and a holding portion.
   On the other end side with the support shaft in between, an opening / closing operation unit capable of opening / closing the holding portion by an operator operating the vital data measuring device is included.
   The arterial oxygen saturation measuring unit is
   Provided in the holding portion,
   The vital data measuring device according to claim 1.
3. Further equipped with a power switch for turning on / off the vital data measuring device,
   The power switch is
   The opening / closing operation unit is provided.
   The vital data measuring device according to claim 2.
4. The first housing is
   The first relative surface facing the second housing and
   It has a first open surface that does not face the second housing, and has a first open surface.
   The second housing is
   The second relative surface facing the first housing and
   It has a second open surface that does not face the first housing, and has a second open surface.
   In the opening / closing operation unit, the first relative surface is separated from the second relative surface.
   The power switch is
   Provided on the first relative surface or the second relative surface,
   The power switch provided on the first relative surface or the second relative surface is
   The vital data measuring device can be turned on and off in conjunction with the opening / closing operation of the opening / closing operation unit by the operator.
   The vital data measuring device according to claim 3.
5. The vital data measuring device according to claim 3, further comprising a strap attachment portion to which a strap can be attached, which is provided in the vicinity of the power switch.
6. The first housing is
   The first relative surface facing the second housing and
   It has a first open surface that does not face the second housing, and has a first open surface.
   The second housing is
   The second relative surface facing the first housing and
   It has a second open surface that does not face the first housing, and has a second open surface.
   The second light receiving unit is
   Provided on the first open surface or the second open surface,
   The vital data measuring device according to claim 2.
7. The display unit is
   Provided on the first open surface or the second open surface, and
   Of the two housings of the first housing and the second housing, the housing not provided with the second light receiving unit is provided.
   The vital data measuring device according to claim 6.
8. The display unit is
   When the pulsation of the subject is detected by the arterial oxygen saturation measuring unit,
   (A) Arterial oxygen saturation,
   (B) The pulse rate and (c) the body temperature can be displayed collectively, or the collective display of the (a) and (b) and the single display of the (c) can be switched and displayed.
   When the pulsation of the subject is not detected by the arterial oxygen saturation measuring unit,
   (C)
   Is displayed independently,
   The vital data measuring device according to claim 1.
9. The vital data measuring device according to claim 1, further comprising a mounting detection unit that detects whether or not the subject is mounted on the measurement site.
10. The measurement site of the subject detected by the wearing detection unit is
    (D) The subject's fingertips,
    (E) The subject's ear canal,
    (F) the subject's axilla, and (g) the subject's sublingual at least two or more.
    The attachment detection unit serves as a attachment site for the subject.
    The above (d) to (g)
    Determine one of the above and
    The display unit is
    Along with the body temperature of the subject, the identified wearing site of the subject is displayed.
    The vital data measuring device according to claim 9.
    

Images