JP2014064654A - Vital measuring instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vital measuring instrument capable of efficiently measuring a respiratory rate by a low-cost system, especially capable of measuring a respiratory rate of a sleeping subject without waking up the subject placed on a fluid bag.SOLUTION: A vital measuring instrument 10 includes a fluid bag 20 for placement which is filled with a fluid and is disposed in such a manner that a subject 90 can be placed on it, and a sensor 50 for detecting the pressure fluctuation in the fluid bag 20 for placement based on the respiratory movement of the subject 90, and has a detection part 30 detachably attached to the fluid bag, and a control part 46 for measuring and outputting a respiratory rate based on the result of the detection by the sensor 50.

Description

  The present invention relates to a vital measuring instrument for measuring the respiration rate of a subject.

  Infectious diseases such as pneumonia and urinary tract infections currently account for the top causes of death among the elderly. In general, infectious diseases in elderly people often have few symptoms such as fever, and there are not a few cases of seriousness and death due to delay in coping. For this reason, it is important to start treatment by early detection. Regarding pneumonia, it is usually possible for a doctor to make a distinction by listening to the sound of the chest with a stethoscope, and a diagnosis can be made more reliably by performing a chest X-ray examination. A urinary tract infection can be diagnosed by performing a blood test, urine culture, abdominal CT examination, abdominal echo examination, or the like. In other words, an infectious disease can be said to be a disease that can be prevented from becoming serious if it is diagnosed by a doctor or the like under an appropriate examination facility. However, in the case of a hospital or a specific nursing care facility equipped with the above-mentioned inspection equipment and a doctor, the early diagnosis is possible, but the elderly who receive home care or general care In the first place, it is difficult to receive such a diagnosis at an early stage in the case of an elderly person in a facility or a medical depopulated area.

  In situations where there are no testing facilities and no doctor to judge, caregivers must distinguish signs of pneumonia and urinary tract infections from daily vital fluctuations, but caregivers should make such decisions. Is not easy. In fact, even if it is determined that there is a suspicion of an infectious disease, it is difficult to make a sufficient judgment on the severity, and it is often the case that the situation is dealt with after a while. For these reasons, there is a need for a medical device that can be easily measured by caregivers and the like and can determine the deterioration of the condition at an early stage in the above-mentioned care sites and medical depopulated areas. Yes.

  On the other hand, in recent years, in the early detection of infectious diseases such as pneumonia and urinary tract infections, diagnostic methods focusing on respiratory function evaluation have been attempted. In the respiratory function, the respiratory rate is counted as a basic vital together with the body temperature, blood pressure, and pulse, and is regarded as an extremely important item in judging the condition of the patient (subject). The respiration rate of a healthy person is about 20 times / minute, and if it exceeds 25 times / minute, it is treated as tachypnea, which is particularly important in infectious disease diagnosis, and is useful in determining the severity of a subject. It is an indicator. Specifically, in Port Score (Non-patent Document 1) and CURB-65 (Non-patent Document 2), which are criteria for diagnosing the severity of pneumonia, respiratory rate ≧ 30 times / minute is taken up as an item of criteria for determining the severity. ing.

  As a device for measuring the respiratory rate, a fluid such as air is enclosed as described in Patent Document 1 and Patent Document 2 because many elderly people who frequently have infectious diseases are bedridden. A mattress with a relatively simple configuration that places the subject on a dry air bag, detects body vibrations associated with the patient's breathing movement with a sensor that detects changes in air pressure within the air bag, and measures the respiration rate from this detection result. A type of respiratory rate meter has been proposed.

“The New ENGLAND JOURNAL OF MEDICINE”, 1997, Vol. 336, p. 243-250 “Thorax”, 2001, Vol. 56, p. 296-301

JP 2001-145605 A JP 2001-276019 A

  In the respiration rate measuring instrument described in Patent Document 1 and Patent Document 2, the patient is placed on a relatively large area air bag in order to accurately detect the patient's respiratory vibration. A structure in which an air bag is permanently installed in the bed is adopted. Such a mattress-type respiratory rate measuring device measures the respiratory rate of a subject by installing an air bag in which a sensor is embedded between the body and the bed of the subject. However, such a mattress-type respiratory rate measuring device is expensive because it has not only a mattress portion made of an air bag but also a sensor for detecting pressure fluctuations and an electronic control portion, and medical and care facilities have many measuring devices. There was a problem that doing so would be an economic burden.

  It is an object of the present invention to provide a vital measuring instrument that enables efficient respiration rate measurement with an inexpensive system. Specifically, by separating the mattress portion made of a fluid bag from the sensor for detecting pressure fluctuation and the electronic control portion into individual parts, a plurality of inexpensive fluid bags can be provided. The user can efficiently measure the respiratory rate by visiting a plurality of subjects in which a fluid bag is installed in order with a measuring device including a sensor. In particular, the mattress part consisting of a fluid bag is installed in the subject in advance, and by placing the connection part with the measurement device on the bedside, it is not necessary to contact the measurement device with the subject even when the subject is sleeping, The respiration rate can be measured without waking up the subject.

  (1) A fluid bag for placement in which a subject is placed so that a subject can be placed, and pressure fluctuation in the placement fluid bag based on the breathing motion of the subject. Vital measurement characterized by comprising a sensor for detecting and detachably attached to the fluid bag, and a controller for measuring and outputting the respiration rate based on the detection result of the sensor vessel.

  (2) The fluid bag for placement described above extends in a direction intersecting the body axis of the subject from the placement portion on which the part of the subject's body is placed, and the placement portion. And an attachment portion provided on the extension portion to which the detection portion can be attached, and the sensor is as described above in a state where the detection portion is attached to the fluid bag for placement. The vital measuring instrument according to the above (1), which is provided so as to be able to detect a pressure fluctuation in the placement fluid bag based on vibration transmitted through the placement fluid bag.

  (3) The vital measuring instrument according to (2), wherein the attachment portion includes a bag-like insertion portion into which the detection portion can be inserted.

  (4) The detection unit is configured by a detection fluid bag in which an internal pressure can be changed with expansion and contraction of the fluid bag in a state of being inserted into the insertion unit, and the sensor includes the sensor The vital measuring instrument according to the above (3), which detects the pressure fluctuation inside the mounting fluid bag through the pressure fluctuation inside the detection fluid bag.

  (5) The mounting fluid bag includes: a plurality of fluid holding portions obtained by dividing the mounting fluid bag into a plurality; and a bypass path that fluidly communicates the plurality of adjacent fluid holding portions with each other. The vital measuring instrument according to any one of (1) to (4) above.

  (6) The above-described (1) to (1) further including a fluid supply unit that supplies a fluid to the mounting fluid bag, wherein the fluid bag includes a connection unit that can be connected to the fluid supply unit in a liquid-tight and air-tight manner. (5) The vital measuring instrument as described in any one.

  According to the vital measuring instrument of the present invention described in the above (1), the subject is mounted with the detection unit including the sensor for detecting the pressure fluctuation in the fluid bag based on the respiratory motion of the subject. It can attach to the fluid bag for mounting so that attachment or detachment is possible. In addition, since it is possible to measure the respiration rate of the subject without raising the subject's body with the detection unit attached to the mounting fluid bag, the work required for measuring the respiration rate can be performed. Can be easily. Therefore, it is possible to provide a vital measuring instrument with further improved user convenience.

  In addition, according to the vital measuring instrument of the present invention described in (2) above, it extends in a direction intersecting the body axis of the subject from a placement portion on which a part of the subject's body is placed. A detection part can be attached to the extension part. Therefore, it is possible to provide a vital measuring instrument that can perform measurement without requiring the subject to cooperate in measurement or waking up when the subject is sleeping.

  Further, according to the vital measuring instrument of the present invention described in (3) above, since the attachment part having the bag-like insertion part into which the detection part can be inserted is provided, the detection part is securely attached to the attachment part, and Easy to install. Therefore, the adhesion between the placement fluid bag 20 and the detection unit 30 can be improved without worrying about fluid leakage, and the placement fluid bag 20 based on the breathing motion of the subject 90 is thereby improved. It is possible to provide a vital measuring instrument that can suitably detect the pressure fluctuation in the inside and improve the convenience for the user.

  Further, according to the vital measuring instrument of the present invention described in the above (4), it is constituted by the detection fluid bag in which the internal pressure can be changed with the expansion and contraction of the fluid bag in the state of being inserted into the insertion portion. And a sensor for detecting the pressure fluctuation inside the mounting fluid bag via the pressure fluctuation inside the detection fluid bag. Therefore, since the detection unit is also constituted by a fluid bag, the adhesiveness between the mounting fluid bag and the detection unit can be reduced without worrying about fluid leakage in the state where the detection unit is inserted into the insertion unit. Improvement can be achieved, and thereby a vital measuring instrument capable of suitably detecting pressure fluctuations in the fluid bag based on the breathing motion of the subject can be provided.

  In addition, according to the vital measuring instrument of the present invention described in (5) above, a plurality of fluid holding portions formed by dividing a mounting fluid bag into a plurality of mounting fluid bags and a plurality of adjacent ones. And a bypass passage that fluidly communicates with each other. Therefore, the fluid in the mounting fluid bag is divided by the weight of the subject's body, and the measurement accuracy is lowered due to the measurement being performed in a state where the body pressure is not applied to the fluid bag. It is possible to provide a vital measuring instrument that can be reliably prevented.

  In addition, according to the vital measuring instrument of the present invention described in (6) above, a fluid supply unit that supplies fluid to the mounting fluid bag, and the fluid bag can be connected to the fluid supply unit in a liquid-tight or air-tight manner. A connecting part. Therefore, since the volume of the mounting fluid bag can be increased as appropriate, it is possible to prevent a decrease in detection sensitivity due to the sag of the mounting fluid bag, and for repeated use over a long period of time. In addition, it is possible to provide a vital measuring instrument capable of maintaining high detection sensitivity.

It is an external view which shows the use condition of the vital measuring device which concerns on embodiment of this invention. It is a top view which shows the structure of the detection part and main-body part of the vital measuring device which concerns on embodiment of this invention. It is a side view which shows the structure of the detection part of the vital measuring device which concerns on embodiment of this invention. It is a top view which shows the structure of the fluid bag for mounting the vital measuring device which concerns on embodiment of this invention, FIG. 4 (A) is a general view, FIG.4 (B) is FIG.4 (A). FIG. It is sectional drawing which shows the structure of the fluid bag for mounting the vital measuring device which concerns on embodiment of this invention, FIG. 5 (A) is sectional drawing which shows the cross section along the AA of FIG. FIG. 5B is a cross-sectional view showing a cross section taken along line BB of FIG. It is a block diagram which simplifies and shows the whole structure of the vital measuring device which concerns on embodiment of this invention.

  Hereinafter, the present invention will be described based on embodiments with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted. The dimensional ratios in the drawings are exaggerated for convenience of explanation, and may differ from actual ratios.

  FIG. 1 is a diagram showing a usage state of a vital measuring instrument 10 according to an embodiment of the present invention. The vital measuring device 10 is used, for example, for a subject 90 laid on a bed 80 or a mattress, and measures the respiratory rate of the subject 90 as a basic vital. The subject 90 to be used includes, for example, an elderly person receiving home care, a supine patient suffering from an infectious disease such as pneumonia or urinary tract infection, but is not limited thereto. It may be a healthy person who regularly and regularly measures the number.

  With reference to FIG. 1, the vital measuring instrument 10 according to the present embodiment, as outlined, includes a fluid bag 20 for placement in which a fluid is enclosed and a subject 90 can be placed; A sensor 50 (see FIG. 2), which will be described later, for detecting a change in internal pressure in the mounting fluid bag 20 based on the breathing motion of the subject 90 is provided, and is detachably attached to the mounting fluid bag 20. And a main body 40 in which a later-described control unit 46 (see FIG. 6) that measures and outputs the respiration rate based on the detection result of the sensor 50 is built.

  When the subject 90 performs a breathing motion in a state where the subject 90 is placed on the placement fluid bag 20, the pressure fluctuation (breathing vibration) in the placement fluid bag 20 according to the breathing motion. Pressure) is detected by a detector 30 that is detachably attached to the mounting fluid bag 20.

  The mounting fluid bag 20 is composed of a sheet-like member that can enclose a fluid therein. The material of the mounting fluid bag 20 is not particularly limited, and for example, flexible rubber, plastic, cloth material, resin, etc. having airtightness can be used.

  There are no particular restrictions on the outer shape, outer dimensions, and the like of the placement fluid bag 20 as long as the respiratory rate can be measured in a state where a part of the body of the subject 90 is placed. One side of the outer peripheral portion can be formed in a rectangular shape having a size of about 30 cm × 100 cm. Further, the thickness can be formed to be about 0.3 cm to 1 cm at the time of maximum expansion. Here, when the subject 90 places the body on the placement fluid bag 20 which is the outer dimension of the placement fluid bag 20, the body axis of the subject 90 (in FIG. 1). The width dimension W (W in FIG. 1) in the direction (longitudinal direction) crossing the a axis) and the width dimension T (T in FIG. 1) in the direction along the body axis (short direction) are: It can be determined based on the following conditions.

  The width dimension W in the longitudinal direction of the mounting fluid bag 20 is such that the subject 90 placed on the mounting fluid bag 20 is an average body type adult male. It was determined in consideration of the shoulder width of 90 and the width of the space necessary for attaching the detector 30 to the mounting fluid bag 20. The width dimension W is such that when the detection unit 30 is attached to the mounting fluid bag 20, the subject 90 is placed on the detection unit 30 even when the subject 90 turns over. It was decided in consideration not to happen.

  On the other hand, the width dimension T in the short direction of the mounting fluid bag 20 is such that a part of the body of the subject 90 is mounted on the mounting fluid bag 20 and the mounting fluid bag 20. It can be determined in consideration of the width of the space for mounting the detection unit 30 on.

  In the present embodiment, air is used as the fluid sealed in the mounting fluid bag 20. However, the present invention is not limited to this, and for example, water, oil, polymer gel, or the like can be used.

  Referring to FIG. 1, a fluid bag 20 for placing a subject 90 includes a placement portion 21 on which a part of the body of the subject 90 is placed, and the placement portion 21 to the subject 90. The extension part 22 extended in the direction which cross | intersects the body axis a, and the attaching part 23 to which the detection part 30 provided in the extension part 22 is attached is provided.

  Referring to FIGS. 2 and 3, the sensor 50 is a pressure based on vibration transmitted through the mounting fluid bag 20 in a state where the detection unit 30 is attached to the mounting fluid bag 20. Variations can be detected.

  As shown in FIG. 1, the vital measuring instrument 10 according to the present embodiment is provided in the extending portion 22 where a part of the body of the subject 90 is placed on the placing portion 21 of the placing fluid bag 20. In a state where the detection unit 30 is attached to the attached attachment unit 23, the respiratory vibration of the subject 90 is measured. In the present embodiment, as shown in FIG. 1, the mounting portion 23 can be attached to the extension portion 22 on the left side of the subject 90 on which the mounting fluid bag 20 is placed. However, the present invention is not limited to this, and it is configured to include a mounting portion 23 to which the detection portion 30 can be attached to the right extension portion 22 of the subject 90, and to either one of the two mounting portions 23. You may make it the structure which attaches the detection part 30. FIG. Moreover, it is good also as a structure which provides the attaching part 23 separately and connects with the fluid bag 20 for mounting with an air tube. Thus, when the bed 80 on which the subject 90 is placed is placed in close contact with the wall, the user can attach the extension portion 22 on the side away from the wall of the placement fluid bag 20. The detection unit 30 can be attached to 23, and the convenience for the user can be improved.

  As shown in FIG. 4, the mounting portion 23 of the mounting fluid bag 20 has a bag-like insertion portion 60 into which the detection portion 30 can be inserted.

  The bag-like insertion portion 60 included in the mounting portion 23 of the mounting fluid bag 20 is used to insert the distal end portion 34 of the detection portion 30 as shown in FIG. The bag-like insertion portion 60 is composed of a member made of the same material as the mounting fluid bag 20. The outer shape and dimensions of the bag-like insertion portion 60 are not particularly limited as long as the distal end portion 34 of the detection portion 30 can be inserted in close contact. For example, one side of the outer peripheral portion is 5 cm × 25 cm. It can be formed in a rectangular shape with a certain size.

  As shown in FIG. 4A, the bag-like insertion portion 60 is formed in a rectangular shape having four sides (61, 62, 63, 64 in FIG. 4A). The bag-like insertion portion 60 is joined to the mounting fluid bag 20 at the sides 62, 63, and 64, and only the side 61 is an opening. When the distal end portion 34 of the detection unit 30 is inserted into the opening (side 61 portion) of the bag-like insertion portion 60, the detection unit 30 is attached to the attachment portion 23 of the mounting fluid bag 20.

  The detection unit 30 is configured by a detection fluid bag 70 in which the internal pressure fluctuates in accordance with the expansion and contraction of the mounting fluid bag 20 in the state of being inserted into the insertion unit 60.

  The sensor 50 can detect the pressure fluctuation inside the placement fluid bag 20 through the pressure fluctuation inside the detection fluid bag 70.

  The detection unit 30 detachably attached to the placement fluid bag 20 includes a sensor 50 for detecting a change in internal pressure in the placement fluid bag 20 based on the breathing motion of the subject 90. Further, as shown in FIG. 2, the detection unit 30 is configured by a sheet-like member (a detection fluid bag 70) that can enclose a fluid therein. The detection fluid bag 70 is composed of a member made of the same material as the placement fluid bag 20. In addition, the outer shape and the outer dimensions of the detection fluid bag 70 are such that the tip of the detection fluid bag 70 (the tip portion 34 of the detection unit 30) is inserted into the bag-like insertion portion 60 of the placement fluid bag 20. There is no particular limitation as long as it can be inserted, and for example, it can be formed in a rectangular shape having a dimension of about 3 cm × 20 cm on one side of the outer periphery.

  In the present embodiment, air is used as the fluid sealed in the detection fluid bag 70 in the same manner as the fluid sealed in the mounting fluid bag 20. However, the present invention is not limited to this. A polymer gel or the like can be used.

  As the sensor 50 for detecting the pressure fluctuation in the detection fluid bag 70, a sensor that captures the pressure fluctuation of the fluid with time can be used. As shown in FIGS. 2 and 3, for example, the sensor 50 is accommodated and disposed in a predetermined accommodating portion 33 provided in a grip portion 32 for gripping by a user provided with the power switch 31 of the detection portion 30. be able to. As shown in the figure, the accommodating portion 33 is communicated with a later-described feed passage 72 of the detection fluid bag 70. The arrangement position of the sensor 50 is not particularly limited. For example, the sensor 50 may be arranged in the detection fluid bag 70 or may be arranged in the feeding flow path 72 of the detection fluid bag 70.

  The sensor 50 included in the detection unit 30 uses a known omnidirectional microphone used for detecting fluid pressure, but is not limited thereto, and is representative of a pressure sensor, a PVDF (PolyVinylline DiFluoride) sensor, and an EMFiT sensor. Various piezoelectric films, piezoelectric sheets, strain gauges, and the like that are used can be appropriately used in accordance with the characteristics of the fluid. Note that a known method such as a wireless transmission / reception method such as Bluetooth can be adopted for transmission / reception of electric signals performed between the detection unit 30 and the control unit 46. In the present embodiment, transmission / reception of electrical signals performed between the detection unit 30 and the control unit 46 has been described as a wireless transmission / reception method. However, the present invention is not limited to this, and lead wires and general electrical cables are used. It is also possible to apply to a transmission / reception method using.

  As shown in FIGS. 2 and 3, the detection fluid bag 70 is configured to detect a respiratory vibration of the subject 90, and to hold the fluid in the detection unit 71 that is derived from the detection unit 71 and can be circulated. And a feeding flow path 72. Further, as shown in FIG. 3, for example, a detection fluid bag 70 in which a sensing unit 71 and a sending channel 72 are integrally formed can be used. In such a detection fluid bag 70, two resin sheet materials are bonded to each other by heat fusion or the like, and a sensing portion 71 and a feeding flow path 72 are formed between the two resin sheet materials. It can be manufactured by partitioning the space. The configurations of the sensing unit 71 and the feeding channel 72 are not limited to such a configuration. For example, the sensing unit 71 is made of a sheet material, and the feeding channel 72 is made of a fluid different from the sensing unit 71. You may comprise by a tube etc.

  When performing the measurement, the subject 90 is mounted on the mounting portion 23 of the mounting fluid bag 20 by performing a breathing motion in a state where the subject 90 is mounted on the mounting fluid bag 20. The fluid vibrates between the constituent members of the detection unit 30 (the detection unit 71 of the detection fluid bag 70, the feeding channel 72, and the storage unit 33). When the sensor 50 accommodated in the accommodating portion 33 detects a pressure fluctuation in the sensing portion 71 due to the vibration of the fluid, the detection result is transmitted to the control portion 46. And the respiration rate of the subject 90 is measured by the arithmetic processing part (refer FIG. 6) with which the control part 46 is provided.

  As shown in FIG. 3, on the back surface 73 side of the detection fluid bag 70, the support member 74 for flexibly supporting the detection fluid bag 70 and the detection sensitivity of the detection fluid bag 70 are improved. A backing material 75 can be installed.

  The support member 74 may be made of a material that can elastically support the detection fluid bag 70, such as a latex balloon, sponge, or gel. The support member 74 supports the detection fluid bag 70 so as to push it up, and stabilizes the contact between the detection unit 30 constituted by the detection fluid bag 70 and the insertion unit 60 of the placement fluid bag 20. Let

  For the backing material 75, for example, a polymer sheet such as polypropylene, polyethylene terephthalate, polyethylene, fluororesin, or polyvinyl chloride can be used. By installing the backing material 75, it is possible to prevent the diffusion of respiratory vibrations toward the back surface 73 side of the detection fluid bag 70, so that the respiratory rate can be measured with higher accuracy. The backing material 75 preferably has a thickness of about 1 to 5 mm from the viewpoint of reducing the size of the detection unit 30. In addition, it is also possible to set it as the structure provided with only one of the supporting member 74 and the backing material 75, and when providing both the supporting member 74 and the backing material 75, the vertical relationship of the installation position shown in figure is reversed. It is also possible to do.

  4 and 5, the mounting fluid bag 20 includes a plurality of fluid holding portions 24a, 24b, and 24c formed by dividing the mounting fluid bag 20 into a plurality of fluids adjacent to each other. Bypass passages 25a and 25b that fluidly communicate the holding portion 24 with each other.

  The mounting fluid bag 20 is provided with a plurality of fluid holding portions 24a, 24b, and 24c obtained by dividing the mounting fluid bag 20 into a plurality of parts. When the fluid bag 20 is placed, the state in which the inside of the placement fluid bag 20 is divided (kink state) can be prevented. Furthermore, since a plurality of bypass passages 25a, 25b are led out from each fluid holding part 24a, 24b, 24c, for example, one fluid holding part (24a, 24b, Even when one bypass passage (any of 25a, 25b) derived from any one of 24c is crushed, other fluid holding portions 24a, 24b, 24c adjacent to each other by the other bypass passages 25a, 25b It is possible to maintain the communication state between the two. For this reason, it is possible to minimize the possibility of fluctuations in measurement accuracy due to the collapse of the fluid holding portions 24a, 24b, 24c and the bypass passages 25a, 25b. In addition, when using the sheet-like mounting fluid bag 20 as in the present embodiment, the total volume of the fluid holding portions 24a, 24b, and 24c in the fluid bag 20 is preferably about 3000 cc or less.

  As shown in FIG. 4, a fluid holding portion 24 c is provided inside a portion corresponding to the mounting portion 23 of the mounting fluid bag 20. A user who uses the vital measuring instrument 10 inserts the detection unit 30 into the opening (side 62 in FIG. 4B) of the bag-like insertion unit 60 provided in the mounting unit 23 of the mounting fluid bag 20. In doing so, the surface 76 (see FIG. 3) of the sensing portion 71 of the fluid bag 70 for detection located at the tip 34 of the sensing portion 30 is replaced with the surface 26 of the fluid holding portion 24c (see FIG. 5, FIG. A): Inserted in close contact with FIG. 4 (A) AA cross-sectional view, FIG. 5 (B): FIG. 4 (B) BB cross-sectional view). Accordingly, when breathing exercise is performed in a state where the subject 90 is placed on the placement fluid bag 20, each configuration of the detection unit 30 attached to the attachment portion 23 of the placement fluid bag 20. The fluid vibrates between the members (the sensing part 71 and the feeding channel 72 of the sensing fluid bag 70, and the accommodating part 33). When the sensor 50 accommodated in the accommodating portion 33 detects a pressure fluctuation in the sensing portion 71 due to the vibration of the fluid, the detection result is transmitted to the control portion 46. And the respiration rate of the subject 90 is measured by the arithmetic processing part (refer FIG. 6) with which the control part 46 is provided.

  With reference to FIG. 4 (A), the vital measurement part 10 which concerns on embodiment makes the fluid supply part 100 which supplies the fluid to the fluid bag 20 for mounting.

  Referring to FIG. 4A, the mounting fluid bag 20 has a connecting portion 27 that can be connected to the fluid supply portion 100 in a liquid-tight and air-tight manner.

  The fluid supply unit 100 included in the vital measuring instrument 10 is provided to increase the volume in the mounting fluid bag 20 to a volume that the detection unit 30 can detect pressure fluctuations associated with the breathing motion of the subject 90. . If the vital measuring instrument 10 is repeatedly used or used for a long period of time, the mounting fluid bag 20 will sag. If the reduction in the volume of the mounting fluid bag 20 due to this sag becomes significant, the detection sensitivity of breathing vibration and body pressure is lowered, and there is a possibility that good measurement results cannot be obtained. Therefore, the vital measuring instrument 10 is provided with a fluid supply unit 100 that makes it possible to appropriately increase the volume of the mounting fluid bag 20.

  The fluid supply unit 100 may be an air pump that allows air to flow into the mounting fluid bag 20. In the present embodiment, air is used as the fluid sealed in the mounting fluid bag 20. As shown in FIG. 4, the fluid supply unit 100 includes a tube 101 for connection to the connection portion 27 of the mounting fluid bag 20.

  In this embodiment, an air pump is used as the fluid supply unit 100. However, the present invention is not limited to this, and depending on the fluid sealed in the mounting fluid bag 20, a water pump, an oil pump, a polymer sol / gel A pump for use can be used as appropriate.

  Referring to FIG. 4A, the mounting fluid bag 20 supplies the fluid supplied from the fluid supply unit 100 to the fluid holding units 24a, 24b, 24c and the bypass passages 25a, 25b. In addition, a bypass path 25 c for connecting to the connecting portion 27 is provided. Therefore, in the mounting fluid bag 20, the fluid is supplied from the fluid supply unit 100 to the fluid holding units 24a, 24b, and 24c and the bypass channels 25a and 25b via the tube 101, the connecting unit 27, and the bypass channel 25c. Is done.

  As described above, when the volume inside the mounting fluid bag 20 is reduced, the mounting is performed in the mounting fluid bag 20 from the air pump which is the fluid supply unit 100 provided in the vital measuring instrument 10. When air is introduced through the connecting portion 27 of the placement fluid bag 20, the placement fluid bag 20 is filled with air, so that the internal volume of the placement fluid bag 20 is increased and pressurized. State. In addition, the position where the fluid supply unit 100 is installed only needs to be able to flow air into the mounting fluid bag 20.

  In addition, since the volume in the mounting fluid bag 20 capable of measuring the respiration rate is about 50 cc to 3000 cc, the fluid supply unit 100 is configured so that the volume can be increased to at least this level. Is preferred.

  As shown in FIG. 2, the vital measuring instrument 10 has a main body 40 that functions as an operation unit for operating each part of the vital measuring instrument 10. The main body 40 includes a display unit 41 that displays the respiration rate and the measurement result of the respiration waveform, and a housing 42 that houses a control unit 46 (see FIG. 6) that includes a control circuit that controls the detection unit 30 in an integrated manner. And various operation switches for switching display contents and turning on / off the power.

  For example, a hard plastic material generally used for a hard cover of an electronic device, a metal material such as stainless steel, or the like can be used as a material of the housing 42 included in the main body 40.

  As the display unit 41, for example, a known display used in electronic devices such as a liquid crystal display panel and an organic EL panel can be used.

  The power switch 43 provided in the main body 40 is for turning on / off the power of the main body 40. The mode switch 44 is for switching between the real-time measurement mode and the memory data browsing mode. When using the real-time measurement mode, for example, a warning alarm function is used together. The warning alarm function emits a warning sound when a respiration rate exceeding a preset respiration rate is measured, thereby enabling the user to be notified of the occurrence of a vital abnormality at an early stage. The warning alarm is preferably set so that a warning sound is emitted when the respiratory rate reaches 30 times / min or more, or when it reaches 8 times / min or less, for example. The respiration rate of a healthy person is about 15 to 20 times / min. When it exceeds 30 times / min, it is judged as severe, and when it is below 8 times / min, the condition of the subject 90 deteriorates. This is because it is determined that there is a possibility of debreathing.

  The waveform confirmation switch 45 is for confirming a respiratory waveform stored in a RAM provided in the control unit 46. In the memory data browsing mode, by pressing a forward button located on the upper side in the figure and a rewind button located on the lower side in the figure, the waveform from the waveform at the start of measurement to the waveform at the end of measurement is displayed in time series. It is possible to display.

  The measured respiratory rate can be displayed on the right end of the display unit 41. As the respiration rate, for example, a respiration rate (RR: Respiratory Rate) per unit time (for example, 1 minute) is displayed. Further, the respiration rate is calculated based on data sampled at a predetermined time from the start of measurement (a portion surrounded by a broken line in the display unit 41 in FIG. 2, for example, about 15 seconds), and the measurement result is displayed. The part 41 can be displayed in real time.

  Various data transfer functions that enable the measured respiratory rate data to be transferred from the vital measuring instrument 10 to an external device can be added to the vital measuring instrument 10. As a data transfer method, a known method such as a method using a card-type memory device (the storage medium 1 in FIG. 2) or a data transmission / reception by a wireless / wired method can be employed.

  As shown in FIG. 6, the control unit 46 included in the main body unit 40 includes an arithmetic processing unit that performs various arithmetic processes based on the detection result of the pressure fluctuation transmitted from the detection unit 30, and a display unit 41 of the main body unit 40. It has a display control unit that controls the displayed content, and a control circuit that controls each of the detection unit 30, the arithmetic processing unit, and the display control unit. In the present embodiment, the arithmetic processing unit included in the control unit 46 measures the respiration rate.

  The arithmetic processing unit includes a ROM that stores a program that generates a respiratory waveform based on the electrical signal transmitted from the detection unit 30 and predicts and calculates a respiratory rate, and a RAM that stores the respiratory waveform and the respiratory rate in time series. And an EEPROM storing predetermined audio data and the like. The arithmetic processing unit performs various arithmetic processes on the pressure fluctuation detection result obtained by the detection unit 30. In addition to the measurement of the respiration rate, the arithmetic processing unit controls the display control unit so as to display the respiration rate on the display unit 41 and the operation of issuing a warning alarm from the audio output unit.

  In addition, the arithmetic processing unit stores the respiratory waveform and the respiratory rate in time series in the same manner as the RAM in the storage medium 1 that is detachably attached to the insertion unit (not shown) of the main body unit 40. The storage medium 1 is a non-volatile memory card, for example, an SD card (SD Memory Card). The time-series respiratory waveform and respiratory rate data stored in the storage medium 1 are stored in, for example, a PC (Personal Computer) and used for more detailed diagnosis of respiratory diseases.

  The operation of the vital measuring instrument 10 according to the present embodiment will be described.

  As described above, according to the vital measuring instrument 10, the detection unit 30 including the sensor 50 for detecting the pressure fluctuation in the mounting fluid bag 20 based on the breathing motion of the subject 90 is provided to the subject. It can attach to the fluid bag 20 for mounting in which 90 is mounted so that attachment or detachment is possible. Therefore, since the detection unit 30 can be attached to the mounting fluid bag 20 in a state where the subject 90 is mounted on the mounting fluid bag 20, the subject 90 who is bedridden or is sleeping. It is possible to provide a vital measuring instrument that can measure the respiration rate of the subject 90 without causing any problems.

  It should be noted that the vital measuring instrument 10 of the present invention contains at least a fluid, and is based on the placement fluid bag 20 on which the subject 90 can be placed and the breathing motion of the subject 90. The sensor 50 for detecting the pressure fluctuation in the mounting fluid bag 20 is provided, and the respiration rate is determined based on the detection result of the sensor 30 that is detachably attached to the mounting fluid bag 20 and the sensor 50. It is necessary to have the control part 46 which measures and outputs, and it is omissible suitably about another structure.

  Further, according to the vital measuring instrument 10, the extending portion 22 that extends in a direction intersecting the body axis of the subject 90 from the placing portion 21 where a part of the body of the subject 90 is placed is placed. The detection unit 30 can be attached. Therefore, it is possible to provide a vital measuring instrument that can perform measurement without requiring the subject to cooperate in measurement or waking up when the subject is sleeping.

  Moreover, according to the vital measuring instrument 10, since the attachment part 23 which has the bag-like insertion part 60 which can insert the detection part 30 is provided, the detection part 30 can be reliably and simply attached to the attachment part 23. it can. Therefore, it is possible to provide a vital measuring instrument that can suitably detect a pressure fluctuation in the mounting fluid bag 20 based on the breathing motion of the subject 90 and that is improved in user convenience. it can.

  Further, according to the vital measuring instrument 10, it is constituted by the detection fluid bag 70 in which the internal pressure fluctuates with the expansion and contraction of the mounting fluid bag 20 in the state of being inserted into the insertion portion 60. And a sensor 50 that detects the pressure fluctuation inside the mounting fluid bag 20 via the pressure fluctuation inside the detection fluid bag 70. Therefore, since the detection unit 30 is also constituted by the detection fluid bag 70, the placement of the detection fluid bag 20 and the mounting fluid bag 20 without worrying about fluid leakage in the state where the detection unit 30 is inserted into the insertion unit 60. Provided is a vital measuring instrument that can improve the adhesion with the detection unit 30 and can suitably detect pressure fluctuation in the mounting fluid bag 20 based on the breathing motion of the subject 90. be able to.

  Further, according to the vital measuring instrument 10, a plurality of fluid holding portions 24a, 24b, 24c obtained by dividing the mounting fluid bag 20 into a plurality of mounting fluid bags 20 and a plurality of adjacent ones. Bypass passages 25a and 25b that fluidly communicate the fluid holding portions with each other can be provided. Therefore, the fluid in the placement fluid bag 20 is divided by the weight of the body of the subject 90, and measurement is performed in a state where an appropriate body pressure is not applied to the placement fluid bag 20. Therefore, it is possible to provide a vital measuring instrument that can reliably prevent a reduction in measurement accuracy.

  Further, according to the vital measuring instrument 10, the fluid supply unit 100 that supplies fluid to the mounting fluid bag 20, and the fluid supply unit 100 can be connected to the mounting fluid bag 20 in a liquid-tight and air-tight manner. Connecting portion 27 can be provided. Therefore, since the volume of the mounting fluid bag 20 can be appropriately increased, a decrease in detection sensitivity due to the sag of the mounting fluid bag 20 can be prevented, and repeated use over a long period of time. It is possible to provide a vital measuring instrument capable of maintaining high detection sensitivity even in the case of performing.

  In the description of the embodiment, the detection unit 50 including the detection fluid bag 70 is used as a detection unit for detecting a pressure fluctuation in the placement fluid bag 20 based on the breathing motion of the subject 90. Although it used, it is not restricted to this, For example, you may use suitably the sensor which consists of a thin film etc. as a detection part.

  Further, in the description of the embodiment, in order to attach the detection unit 30 to the attachment part 23 of the mounting fluid bag 20, the attachment part 23 includes the bag-like insertion part 60. However, the present invention is not limited thereto. Instead, for example, a magic tape (in this case, the detection unit 30 side also needs to be configured to include a magic tape), a fastener or the like may be included in the attachment unit 23.

10 vital measuring instruments,
20 Fluid bag for mounting,
21 Placement part,
22 Extension,
23 mounting parts 24a, 24b, 24c fluid holding parts,
25a, 25b, 25c bypass,
27 connection part 30 detection part,
40 body,
50 sensors,
60 insertion part,
70 Fluid bag for detection,
80 beds,
90 subjects,
100 Fluid supply unit.

Claims (6)

A fluid bag for placement, in which a fluid is enclosed, and a subject can be placed; and
A sensor for detecting pressure fluctuation in the fluid bag for placement based on the breathing motion of the subject, and a detection unit detachably attached to the fluid bag;
And a control unit that measures and outputs a respiration rate based on a detection result of the sensor. The fluid bag for placement described above includes a placement portion on which a part of the subject's body is placed, and an extension extending from the placement portion in a direction intersecting the body axis of the subject. A mounting portion provided on the extending portion and attachable to the detection portion,
In the state where the detection unit is attached to the fluid bag for mounting described above, the sensor is configured to change pressure in the fluid bag for mounting based on vibration transmitted through the fluid bag for mounting described above. The vital measuring instrument according to claim 1, wherein the vital measuring instrument is provided so as to be capable of detecting the above.   The vital measuring instrument according to claim 2, wherein the attachment part has a bag-like insertion part into which the detection part can be inserted. The detection unit is configured by a detection fluid bag in which an internal pressure can be changed with expansion and contraction of the fluid bag in a state of being inserted into the insertion unit,
4. The vital measuring instrument according to claim 3, wherein the sensor detects a pressure fluctuation inside the placement fluid bag via a pressure fluctuation inside the detection fluid bag.   The mounting fluid bag includes a plurality of fluid holding portions obtained by dividing the mounting fluid bag into a plurality of portions, and a bypass passage that fluidly communicates the plurality of adjacent fluid holding portions with each other. The vital measuring device according to any one of claims 1 to 4. A fluid supply part for supplying fluid to the fluid bag for placement as described above;
The vital measuring instrument according to any one of claims 1 to 5, wherein the fluid bag has a connection part that can be connected to the fluid supply part in a liquid-tight and air-tight manner.