JP2024000968A - Non-human animal blood pressure checker and use method thereof - Google Patents

Abstract

To provide an optical non-human animal blood pressure checker capable of checking a blood pressure state of a non-human animal with body hair.SOLUTION: A non-human animal blood pressure checker 1 comprises: an optical pulse wave sensor 10 including a light emitting part 11 for emitting light to a body surface B of a non-human animal and a light receiving part 12 for receiving the light reflected from the internal body of the non-human animal; a blood pressure calculation part 21 for calculating a blood pressure from a pulse wave signal measured by the pulse wave sensor 10; a display part 15 for displaying a state of the blood pressure based on a calculation result of the blood pressure calculation part 21; a body part 4 including the blood pressure calculation part 21 and the display part 15; and an insertion part 5 extending in a columnar shape and to be inserted between body hair A of the non-human animal. The insertion part 5 includes a tip surface 5b pressed against a measurement object part B1 of the non-human animal and causing the pulse wave sensor 10 to face the outside, and a push-aside part 5d for pushing aside the body hair of the non-human animal to press the tip surface 5b against the body surfaces B.SELECTED DRAWING: Figure 1

Description

The present invention relates to a blood pressure checker for non-human animals and a method of using the same.

Patent Document 1 discloses a so-called cuff-type blood pressure measuring device in which a cuff band is wrapped around the upper part of the front paw of a non-human animal (hereinafter referred to as "animal") and the blood pressure value is measured by increasing and decreasing the pressure of the cuff. There is. Cuff-type blood pressure measuring devices generally place a cuff on the animal while physically restraining it or sedating it with drugs, etc., and apply pressure, which can cause stress to the animal. It is difficult to obtain accurate blood pressure.

Patent Document 2 discloses that a light-emitting section that emits light onto the surface of the human body and a light-receiving section that receives light reflected from within the body surface generate a light beam that responds to changes in blood vessel volume due to pulsation of blood vessels beneath the body surface. An optical pulse wave sensor has been disclosed that measures pulse waves generated by pulse waves.

Patent Document 3 discloses a technique for estimating blood pressure based on a pulse wave obtained by an optical pulse wave sensor. With this, blood pressure can be measured simply by pressing the optical pulse wave sensor against (bringing it close to) the body surface.

Japanese Patent Application Publication No. 2000-551163 JP2016-083030A Japanese Patent Application Publication No. 2015-231512

However, since blood pressure checkers using optical pulse wave sensors are intended for the human body, optical pulse wave sensors are generally not suitable for animals whose body surfaces are covered with dense hair. It cannot be brought close to the body surface, making it difficult to obtain pulse waves from blood vessels beneath the body surface. Furthermore, when measuring a part that is not covered with body hair, such as a paw, the area of the paw is small relative to the pulse wave sensor, and it may be difficult to accurately measure the pulse wave.

An object of the present invention is to check the blood pressure state of a non-human animal with body hair using an optical blood pressure checker for non-human animals.

One aspect of the present invention is a blood pressure checker for a non-human animal that measures the blood pressure of a non-human animal with body hair by measuring the pulse wave of the non-human animal, the device comprising: An optical pulse wave sensor including a light emitting part that emits light and a light receiving part that receives light reflected from the body of the non-human animal, and calculating blood pressure from the pulse wave signal measured by the pulse wave sensor. a blood pressure calculation section; a display section that displays the state of blood pressure based on the calculation result of the blood pressure calculation section; a main body provided with the blood pressure calculation section and the display section; an insertion section inserted between body hair of the non-human animal, the insertion section having a distal end surface that is pressed against the measurement target part of the non-human animal and makes the pulse wave sensor face the outside; A blood pressure checker for a non-human animal is provided, comprising: a scraping part that scrapes the body hair of the non-human animal in order to press it against the body surface.

With this configuration, the parting section can part the body hair of the non-human animal and press the distal end surface against the body surface. This makes it possible to bring the pulse wave sensor close to the body surface and measure the pulse waves of non-human animals with hair on the body surface. Based on the measured pulse waves, the blood pressure status of the non-human animal can be determined. You can check.

One aspect of the present invention is a blood pressure checker for a non-human animal that measures the blood pressure of a non-human animal with body hair by measuring the pulse wave of the non-human animal, the device comprising: An optical pulse wave sensor including a light emitting part that emits light and a light receiving part that receives light reflected from the body of the non-human animal, and calculating blood pressure from the pulse wave signal measured by the pulse wave sensor. a blood pressure calculation section, a display section that displays the state of blood pressure based on the calculation result of the blood pressure calculation section, a main body section provided with the blood pressure calculation section and the display section, and a measurement target section of the non-human animal. a distal end surface that is pressed against the pulse wave sensor; , provides a blood pressure checker for non-human animals whose area is set smaller than the area of the measurement target part.

With this configuration, the measurement region can be set to an appropriate area, and the pulse wave can be measured satisfactorily. Specifically, if the area of the measurement area is larger than the area of the part to be measured, if the light emitted from the light emitting part is located outside the part to be measured and is not irradiated to the part to be measured, or if the light receiving part is There are cases where the device is located outside the measurement target part and cannot receive reflected light from the measurement target part, making it impossible to accurately measure the pulse wave.

Generally, a light emitting part and a light receiving part in a pulse wave sensor are installed on the same plane, and emit and receive light in parallel. Therefore, it is desirable that the portion of the body surface of the non-human animal (the portion to be measured) that is irradiated with light and the portion that reflects the light be arranged on approximately the same plane. Here, the part to be measured is, for example, when the part to be measured is a paw of a non-human animal, an area of the paw in which the light emitting part and the light receiving part on the same plane of the sensor can come into close contact. In other words, when a pulse wave sensor is brought into close contact with a curved paw, the paw deforms elastically, and the light emitting part and the light receiving part are placed on the same plane on the surface of the paw facing the pulse wave sensor. A part to be measured that can be measured is formed.

The insertion portion may be configured separately from the main body portion.

According to this configuration, since the insertion section is configured separately from the main body, it is easy to downsize the insertion section, and it is easy to press the distal end surface against the measurement target regardless of the posture of the non-human animal. In addition, since the insertion section is constructed separately from the main body, it is easy to miniaturize the insertion section, and non-human animals can maintain a resting posture without causing anxiety. Easy to measure.

The insertion portion may extend from an end surface of the main body portion and be integrally formed.

According to this configuration, when measuring, for example, when the main body part and the insertion part are configured as separate bodies (separate type), the insertion part is operated while holding the main body part with one hand. Furthermore, it is easy to operate with one hand, and there is no need for measurement, such as when the insertion section and the main body are connected by a cable or the like, where the cable or the like gets entangled with the non-human animal. In addition, since there is no need for a cable etc. to connect the main body part and the insertion part, the structure can be simplified compared to, for example, a separate type that is configured to connect the main part part and the insertion part with a cable etc. Costs can be lowered.

The ratio of the area of the tip surface to the area of the measurement region may be set to be 2 times or more and 40 times or less.

According to this configuration, since the ratio of the area of the distal end surface to the area of the measurement region is appropriately set, the pulse wave can be measured satisfactorily. Specifically, when the area ratio of the tip surface is less than twice, the tip becomes sharp and easily injures non-human animals. When the ratio of the area of the tip surface exceeds 40 times, it is difficult to accurately press the measurement area against the measurement target area.

The scraping portion may be configured by making the insertion portion tapered from the main body side toward the distal end surface.

With this configuration, since the distal end surface is thin, it is possible to bring the distal end surface close to the root of the body hair with a relatively small amount of hair removal compared to a case where the distal end surface is not tapered. The parted body hair is lifted in a direction away from the body surface side along the slope of the insertion portion, so that the distal end surface can be easily brought close to the body surface.

The scraping portion may be configured such that the distal end surface is inclined with respect to the axial direction of the insertion portion.

With this configuration, the distal end surface is arranged parallel to the fur, and the side of the distal end where the angle between the distal end surface and the side surface of the insertion section is an acute angle is located on the upstream side of the fur. The sides of the part follow the fur, making it easy to insert the insertion part between body hair. This makes it easy to remove body hair with the insertion portion, making it easy to bring the distal end surface close to the body surface of the non-human animal.

The scraping section may be configured by the distal end surface and a plane provided on at least a portion of a side surface of the insertion section and intersecting the distal end surface.

With this configuration, a linear corner is formed between the tip surface and the plane. Thereby, when inserting the insertion portion between the body hairs, the width of the linear corner portion allows the body hair existing in the area of the width of the corner portion to be swept aside. Therefore, the insertion portion can be easily inserted between body hairs, and the distal end surface can be brought close to the body surface of a non-human animal.

Further, after the insertion section is brought close to the body surface, when the body hair around the measurement target section on the body surface is brushed aside against the fur, a straight boundary is easily formed by the straight corner of the tip. Since this boundary is linear and has a width, body hair in the area where the pulse wave sensor is placed can be brushed aside, making it easy to maintain an exposed state of the body surface.

The angle between the tip surface and the plane may be 90 degrees or less.

With this configuration, the distal end surface is arranged parallel to the fur, and the side where the angle between the distal end surface and the plane is 90 degrees or less is located on the upstream side of the fur. The flat surface follows the hair, making it easy to insert the insertion part between body hair.

Furthermore, similar to the effect of the linear corner formed by the tip surface and the plane described above, the linear corner allows body hair in a wide area to be swept aside. Therefore, the insertion portion can be easily inserted between body hairs, and the distal end surface can be brought close to the body surface of a non-human animal.

Further, after the insertion portion is brought close to the body surface, the linear corner portion of the tip easily forms a linear boundary that cuts through the body hair around the measurement target portion on the body surface against the direction of the hair. Since this boundary is linear and has a width, body hair in the area where the pulse wave sensor is placed is swept away, making it easy to maintain an exposed state of the body surface.

The distal end surface may be arranged perpendicularly to the axial direction of the insertion section, and the plane may be orthogonal to the distal end surface.

Similar to the effect of the linear corner formed by the tip surface and the plane described above, the linear corner allows body hair in a wide area to be swept aside. Therefore, the insertion portion can be easily inserted between body hairs, and the distal end surface can be brought close to the body surface of a non-human animal.

Further, after the insertion portion is brought close to the body surface, the linear corner portion of the tip easily forms a linear boundary that cuts through the body hair around the measurement target portion on the body surface against the direction of the hair. Since this boundary is linear and has a width, body hair in the area where the pulse wave sensor is placed is swept away, making it easy to maintain an exposed state of the body surface.

Furthermore, when pressing the tip surface (pulse wave sensor) against the body surface to measure pulse waves, the tip surface can be pressed perpendicularly to the body surface, so component forces acting on the tip surface are suppressed. be done. This makes it easy to ensure the necessary surface pressure during measurement, and it is easy to avoid problems such as changes in the relationship between the distal end surface and the body surface during measurement.

The scraping portion may be a flange portion that protrudes outward from a portion of a side surface at a distal end portion of the insertion portion.

With this configuration, the flange section allows the insertion section to be inserted between the non-human animal's body hair by separating (hanging) it, so that the distal end surface can be brought close to the non-human animal's body surface. Cheap.

The flange portion may be formed in a comb-teeth shape.

With this configuration, the body hair is held at the bottom of the tooth of the comb-like flange portion, so it is easy to maintain a state in which the body hair around the measurement target portion is brushed aside against the fur. This makes it easier to bring the pulse wave sensor closer to the body surface. Further, by holding body hair at the tooth bottom of the comb-like flange portion, it is possible to suppress displacement of the distal end surface in a direction perpendicular to the fur and the axial direction of the insertion portion.

The area of the measurement area may be set to 7 mm ² or more and 16 m ² or less.

With this configuration, the opening through which the pulse wave sensor faces the outside can be set to an appropriate area, and pulse waves can be measured satisfactorily. Specifically, when the area of the measurement region is less than 7 mm ² , it is difficult to emit and receive light due to dirt and the like adhering to the opening, making it impossible to accurately measure pulse waves. If the area of the measurement area exceeds 16 ^mm2 , the area of the pulse wave sensor is larger than the area of the part to be measured, and the light emitted from the light emitting part is located outside of the part to be measured and is not irradiated to the part to be measured. In other cases, the light receiving section is located outside the measurement target part and cannot receive the reflected light from the measurement target part, making it impossible to accurately measure the pulse wave.

The blood pressure checker for non-human animals according to any one of claims 1 to 8, wherein the luminous intensity of the light emitting part is set to 40 mcd or more and 120 mcd or less.

With this configuration, the luminous intensity of the pulse wave sensor is appropriately set, and the pulse wave can be measured satisfactorily. Specifically, when the luminous intensity of the pulse wave sensor is less than 40 mcd, the luminous intensity is weak and it is difficult to receive reflected light. When the luminous intensity of the pulse wave sensor exceeds 120 mcd, so-called halation is likely to occur, in which the light receiving section detects light exceeding the measurable limit due to the high luminous intensity and reflected light.

The display unit may display at least one of the blood pressure value calculated by the blood pressure calculation unit and a determination result as to whether the blood pressure value is within a predetermined range.

With this configuration, the blood pressure status of non-human animals can be easily checked.

A method of using a blood pressure checker for a non-human animal that measures the pulse wave of a non-human animal with body hair to check the state of the blood pressure of the non-human animal, the method comprising: scraping the body hair of the measurement target part of the non-human animal; an optical device comprising: a light emitting unit that exposes the body surface of the measurement target portion and emits light onto the body surface of the non-human animal; and a light receiving unit that receives light reflected from the body of the non-human animal. The pulse wave of the non-human animal is measured by pressing the blood pressure checker for non-human animals equipped with a pulse wave sensor of the formula against the measurement target part, and the blood pressure is calculated based on the pulse wave. A method of using the blood pressure checker for non-human animals is provided.

By this method, it is possible to push the pulse wave sensor against the measurement target part by pushing aside the body hair of the measurement target part of the non-human animal, exposing the body surface of the measurement target part, so it is possible to press the pulse wave sensor against the measurement target part. The blood pressure status of non-human animals with body hair can be checked using a blood pressure checker for non-human animals.

The blood pressure checker for non-human animals includes a scraping part that scrapes the body hair of the non-human animal, and when scraping the body hair of the measurement target part, the blood pressure checker for non-human animals is arranged so that the blood pressure checker for non-human animals is brushed against the body hair of the non-human animal. They may be inserted oppositely.

With this method, by inserting the blood pressure checker for non-human animals so that it is opposite to the fur of the non-human animal, it is easy to remove the body hair of the non-human animal and check the blood pressure status of non-human animals with body hair. can.

A method of using a blood pressure checker for a non-human animal that measures the pulse wave of a non-human animal with body hair to check the state of blood pressure of the non-human animal, the method comprising:
The non-human animal is equipped with an optical pulse wave sensor including a light-emitting part that emits light onto the body surface of the non-human animal, and a light-receiving part that receives light reflected from the body of the non-human animal. Measuring the pulse wave of the non-human animal by pressing a blood pressure checker against the hair-free body surface of the non-human animal to be measured;
A method of using the blood pressure checker for non-human animals, characterized in that blood pressure is calculated based on the pulse wave.

According to this method, the state of the blood pressure of a non-human animal with body hair can be checked by pressing the blood pressure checker for non-human animals against a part to be measured without body hair, for example, the paw pad.

According to the present invention, the state of blood pressure of a non-human animal with body hair can be checked using an optical blood pressure checker for non-human animals.

FIG. 1 is a perspective view of an animal blood pressure checker according to a first embodiment of the present invention. A sectional view taken along the II-II line in FIG. 1. FIG. 2 is an explanatory diagram when using the animal blood pressure checker according to the first embodiment. A perspective view and a bottom view of an animal blood pressure checker according to a second embodiment of the present invention. An explanatory diagram when using the animal blood pressure checker according to the second embodiment. FIG. 7 is a side view and a partially enlarged view of an insertion portion of an animal blood pressure checker according to a third embodiment of the present invention. Explanatory diagram when using the animal blood pressure checker according to the third embodiment. A perspective view and a bottom view of an animal blood pressure checker according to a fourth embodiment of the present invention. Explanatory diagram when using the animal blood pressure checker according to the fourth embodiment. (a) A partially enlarged perspective view of a modification of the flange portion of the fourth embodiment, and (b) an explanatory diagram when using the animal blood pressure checker provided with the flange portion of the modification of the fourth embodiment. An explanatory diagram showing the relationship between an opening and a measurement area. An explanatory diagram when using an animal blood pressure checker on a non-human animal to be measured without body hair. FIG. 7 is a system diagram and a side view of an animal blood pressure checker according to a fifth embodiment. FIG. 14 is a front view and a partially enlarged view of the animal blood pressure checker of FIG. 13.

The present invention relates to a blood pressure checker for non-human animals (hereinafter also referred to as "animals"). The non-human animal blood pressure checker 1 is a so-called cuffless blood pressure checker that calculates blood pressure based on a pulse wave measured by an optical pulse wave sensor. Prior to explaining the animal blood pressure checker 1 of the present invention, an optical pulse wave sensor will be explained.

An optical pulse wave sensor includes a light emitting section that emits light onto the surface of an animal's body, and a light receiving section that receives light reflected from inside the animal's body. A pulse wave sensor uses a light emitting part that emits light on the animal's body surface and a light receiving part that receives light reflected from the body to detect pulse waves that are obtained as blood vessel volume changes due to the pulsation of blood vessels beneath the body surface. Measure.

As described above, the pulse wave sensor needs to be placed close to the animal's body surface because the light emitted on the body surface is reflected from within the body and the reflected light is received by the light receiving section. In an embodiment of the present invention, the body surface of a non-human animal whose body surface is covered with dense hair is exposed to the pulse wave sensor by removing the hair, and the pulse wave sensor is brought close to the body surface. The present invention has a configuration for accurately measuring pulse waves on the body surface such as the paw pad, which has no body hair.

Hereinafter, a blood pressure checker 1 for non-human animals equipped with body hair according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2.

The blood pressure checker 1 for non-human animals in this embodiment includes a pulse wave sensor 10, a control device 20 for controlling the pulse wave sensor 10, a display section 15 for displaying the calculated blood pressure state, and a power source. It includes a battery 16 and a casing 3 that houses them.

The pulse wave sensor 10 includes a light emitting unit 11 that emits light to the body surface, a light receiving unit 12 that receives light reflected from within the body, and a conversion circuit (not shown) that converts the received light into a pulse wave signal. has. The control device 20 sends a signal to the light emitting section 11 to cause the body surface to emit light, and as described above, the control device 20 separates the light emitted from the light emitting section 11 and the light reflected from the body obtained from the light receiving section 12. It includes a blood pressure calculation unit 21 that calculates blood pressure based on a detected value (pulse wave). The blood pressure value calculated by the blood pressure calculation unit 21 is displayed on the display unit 15.

In this embodiment, the pulse wave sensor 10 employs an optical pulse wave sensor (manufactured by ROHM Co., Ltd., model number BH1792GLC) in which the light emitting part 11 is an LED (light emitting diode) and the light receiving part 12 is a photodiode. There is. The pulse wave sensor 10 measures the luminous intensity of reflected light when LED light is irradiated toward a measurement target part of a non-human animal. The luminous intensity of the LED can be adjusted by the LED drive current. The luminous intensity of the light emitting section 11 is set to 40 mcd or more and 120 mcd or less. When the luminous intensity of the pulse wave sensor is less than 40 mcd, the luminous intensity is low and it is difficult to receive reflected light. When the luminous intensity of the pulse wave sensor exceeds 120 mcd, so-called halation is likely to occur, in which the light receiving section 12 detects light exceeding the measurable limit due to the high luminous intensity and reflected light.

The display unit 15 determines whether the blood pressure value is within a predetermined range (for example, a range of normal blood pressure values in which health is maintained) based on the calculation result of the blood pressure calculation unit 21, and also displays information based on the determination result. The blood pressure status may be displayed in ``yellow'', ``green'', ``red'', etc. to indicate ``low blood pressure'', ``within standard'', and ``hypertension'', respectively.

The casing 3 includes a rectangular prism-shaped main body 4 that is held by a measurer, and an insertion part 5 that extends in a tapered column shape from the distal end surfaces 41c and 42c of the main body 4 and is inserted between the animal's body hair. There is. In this embodiment, the casing 3 is made of resin, and the main body portion 4 and the insertion portion 5 are integrally formed.

As shown in FIG. 2, the main body 4 is divided into a front side and a back side. The main body portion 4 includes an upper lid portion 41 located on the front side and a lower lid portion 42 located on the back side.

The upper lid portion 41 extends in the axial direction and has a U-shaped cross section that is open to the back side. The upper lid portion 41 includes an upper surface portion 41a extending in the axial direction, a rear end surface portion 41b extending toward the back side from both ends of the upper surface portion 41a in the axial direction, a tip surface portion 41c, and both widthwise ends of the upper surface portion 41a. A pair of left and right side portions 41d and 41e extending from the side toward the back side.

The lower lid portion 42 extends in the axial direction and has a U-shaped cross section that is open to the front side. The lower lid portion 42 includes a lower surface portion 42a extending in the axial direction, a rear end surface portion 42b extending toward the front side from both axial ends of the lower surface portion 42a, a tip end surface portion 42c, and both widthwise ends of the lower surface portion 42a. A pair of left and right side portions 42d extending from the front side toward the front side.

As shown in FIG. 2, the upper lid part 41 and the lower lid part 42 include upper engaging parts 41f...41f provided in the upper lid part 41 and lower engaging parts 42f...42f provided in the lower lid part 42. are connected via. Specifically, the upper engaging portions 41f...41f are provided on the back side surface of the upper surface portion 41a of the upper lid portion 41. Each upper engaging portion 41f is formed, for example, in a columnar shape extending toward the back side. Screw holes 41g...41g are provided inside each upper engaging portion 41f. The lower engaging portions 42f...42f are provided on the front surface of the lower surface portion 42a of the lower lid portion 42. Each lower engaging portion 42f is formed, for example, in the shape of a hollow column extending toward the upper surface, and a through hole 42g is provided at the upper end thereof. The upper lid part 41 and the lower lid part 42 are coupled by a screw 41h that passes through a through hole 42g of each lower engaging part 42f and is screwed into a screw hole 41g of each upper engaging part 41f.

The upper lid part 41 and the lower lid part 42 are fitted together to form a storage space S for storing the pulse wave sensor 10, the display part 15, the control device 20, the battery 16, etc. .

A battery case 43 for arranging the battery 16 is arranged on the lower surface part 42a of the lower lid part 42. A plurality of holes are provided in the center of the battery case 43 and penetrate in a direction perpendicular to the axial direction. Attachment parts 42i...42i for attaching the battery case 43 having screw holes 42h...42h are provided in the center of the lower surface part 42a of the lower lid part 42, arranged in the axial direction. The battery case 43 is fixed to the lower lid part 42 by a plurality of screws 43b...43b inserted through a plurality of holes in the battery case 43 and screwed into screw holes 42h...42h of the mounting parts 42i...42i.

A base 22 on which a control device 20, a display section 15, and a switch 17 for operating the animal blood pressure checker 1 are arranged is fixed to the rear side surface of the upper surface section 41a, for example, via screws or the like. ing.

The upper surface portion 41a is provided with an opening 41i that passes through the upper surface portion 41a in a direction orthogonal to the axial direction. The opening 41i is provided at the center of the upper surface 41a so that the display section 15 housed in the casing 3 faces therein.

A switch opening 41j for passing the switch 17 therethrough is provided in a portion of the upper surface 41a closer to the rear end surface 41b than the opening 41i.

The insertion portion 5 is continuously provided on the distal end surfaces 41c and 42c of the main body portion 4. The insertion portion 5 is formed in peripheral surfaces 51a and 52a as side surfaces that extend in the axial direction and taper from the main body 4 side toward the distal end side, and distal ends 5a of the peripheral surfaces 51a and 52a. and a distal end surface 5b.

The peripheral surface portions 51a and 52a are formed into a conical shape. In other words, the circumferential surfaces 51a and 52a are formed of inclined surfaces serving as parting portions whose radial dimension increases from the distal end side toward the main body portion 4 in the axial cross section (see FIG. 2). The diameter D1 of the distal end is 10% or more and 90% or less of the diameter D2 of the proximal end (main body 4 side). If it is less than 10%, there may not be enough space to store the pulse wave sensor, or the tip may be sharp compared to the main body, increasing the risk of injuring the animal. If it is more than 90%, the space between the body hair Ease of insertion is lost.

The length L in the axial direction of the insertion portion 5 may be within a range of 20 mm or more and 80 mm or less. If it is less than 20 mm, the insertion part is too short and it is difficult for the tip to come close to the body surface along the body hair. If it is longer than 80 mm, the distance from the main body held by the measurer to the part to be measured is too short. Due to the distance, it is difficult to stabilize the non-human animal blood pressure checker when measuring blood pressure.

In the axial cross section, the angle θ between the peripheral surfaces 51a and 52a and the axial direction is 2.5 degrees or more and 40 degrees or less. If the angle is less than 2.5 degrees, the peripheral surfaces 51a, 52a tend to be orthogonal to the distal end surface, making it difficult to improve ease of insertion; if the angle is greater than 40 degrees, the peripheral surfaces 51a, 52a Since it tends to be parallel to the distal end surface, ease of insertion is difficult to improve.

The distal end surface 5b is formed of a surface perpendicular to the axial direction of the insertion portion 5. An opening 5c passing through the inside and outside of the casing 3 is formed in the center of the tip surface 5b. A corner 5d is formed between the tip surface 5b and the conical peripheral surfaces 51a, 52a.

The distal end surface 5b is formed by a pair of semicircular vertical surface portions 51b and 52b extending radially inward from the distal ends of the upper side portion 51 and the lower side portion 52. The opening 5c includes an upper notch 51c provided by cutting out the vertical surface 51b of the upper part 51 to release it downward, and an upper notch 51c that opens the vertical surface 52b of the lower part 52 upward. It is constituted by a lower notch 52c cut out to correspond to the notch 51c.

A base 13 on which a light emitting section 11 and a light receiving section 12 of a pulse wave sensor 10 are arranged is housed inside the insertion section 5 on the distal end side. An upper circumferential convex portion 51d that protrudes inward and extends in the circumferential direction is provided on the inner surface on the tip side of the upper portion 51. The upper circumferential convex portion 51d is provided with an upper circumferential groove 51e that extends in the circumferential direction. A lower circumferential convex portion 52d is provided on the inner surface of the lower side portion 52 on the tip side, which protrudes inward, extends in the circumferential direction, and is provided in correspondence with the upper circumferential convex portion 51d. The lower circumferential convex portion 52d is provided with a lower circumferential groove 52e that extends in the circumferential direction and is provided corresponding to the upper circumferential groove 51e. The light emitting section 11 and the light receiving section 12 of the pulse wave sensor 10 are fixed within the insertion section 5 by the base plate 13 being held between the upper circumferential groove 51e and the lower circumferential groove 52e.

As shown in FIG. 11, the light emitting section 11 and the light receiving section 12 are arranged parallel to the tip surface 5b. The opening 5c provided in the distal end surface 5b is provided so that the light emitting section 11 and the light receiving section 12 (pulse wave sensor 10) are exposed to the outside. The area S1 of the opening 5c is set larger than the area S2 of the measurement region R in which the light emitting section 11 and the light receiving section 12 are arranged.

As shown in FIG. 12(a), the area S2 of the measurement region R is set smaller than the area S3 of the part to be measured B51 on the body surface of the non-human animal. More specifically, the area S2 of the measurement region R may be set to 7 mm ² or more and 16 mm ² or less. When the area S2 of the measurement region R is less than 7 mm ² , it is difficult to emit and receive light due to dirt and the like adhering to the opening 5c, making it impossible to accurately measure the pulse wave. When the area S2 of the measurement area R exceeds 16 ^mm2 , as shown in FIG. There may be cases where the light receiving section 12 is located outside the part to be measured B51 and is not irradiated with the part to be measured B51, or where the light receiving part 12 is located outside the part to be measured B51 and cannot receive the reflected light from the part to be measured B51. Waves cannot be measured accurately. In this embodiment, the area S2 of the measurement region R is set to, for example, 10 mm ² . The part to be measured B51 of the non-human animal may be, for example, the paws, abdomen, back, etc. of a cat, and may be, for example, 10 mm ² or more.

The ratio of the area S4 of the distal end surface 5b to the area S2 of the measurement region R is set to 2 times or more and 40 times or less. If the ratio is less than 2 times, the tip becomes sharp and easily injures non-human animals. If the ratio exceeds 40 times, it will be difficult to accurately press the measurement region R against the measurement target region B51. The area S4 of the tip surface 5b is set, for example, to 20 mm ² or more and 400 mm ² or less.

In this embodiment, the light emitting section 11 and the light receiving section 12 in the pulse wave sensor 10 are installed on the same plane, and emit and receive light in parallel. Therefore, it is desirable that the part to be measured B51 of the non-human animal's body surface (part to be measured) where the light is irradiated and the part which reflects the light be arranged on substantially the same plane. In the present embodiment, the measured portion B51 is a region of the paw in which the light emitting portion and the light receiving portion on the same plane of the sensor can be in close contact with each other. In other words, when the pulse wave sensor 10 is brought into close contact with a paw having a curvature, the paw is elastically deformed, so that the light emitting part 11 and the light receiving part 12 are arranged at the same time on the surface of the paw facing the pulse wave sensor 10. A measured portion B51 that can be positioned on a plane is formed.

An example of use of the non-human animal blood pressure checker 1 according to the first embodiment having the above configuration will be described with reference to FIG. 3. Note that the method of using the blood pressure checker 1 for non-human animals constitutes an embodiment of the claims regarding the method of using the blood pressure checker 1 for non-human animals of the present invention.

FIG. 3 shows the relationship between the non-human animal blood pressure checker 1 and the animal's body hair A and body surface B when measuring the animal's blood pressure with the non-human animal blood pressure checker 1 in a side view (top view) and a bottom view ( (Figure below). Note that the texture, length, density, etc. of the animal's body hair differ depending on the target animal, and for convenience of explanation, the animal body hair A and the blood pressure checker 1 for non-human animals are shown in FIG. It is shown schematically.

As shown in FIGS. 3(a) to 3(d), when the non-human animal blood pressure checker 1 is inserted between the animal's body hairs A, the part of the animal's body hair A that is closer to the measured part B1 is There are body hair A1 located on the upstream side and body hair A2 located on the downstream side. Furthermore, on the tip side of the body hair A, the tip of the body hair A1 located on the upstream side is relative to the corner 5d of the non-human animal blood pressure checker 1 before being inserted between the body hairs A in FIG. 3(a). The tip of the hair A2, which is located upstream and downstream of the fur, is located on the downstream side of the fur with respect to the corner 5d of the blood pressure checker 1 for non-human animals before being inserted between the hairs in FIG. 3(a). Located in In this embodiment, the upstream side of the fur refers to the body surface side in the direction in which body hair extends from the body surface, and the downstream side of the fur refers to the opposite body surface side (body hair) in the direction in which body hair extends from the body surface. (tip side).

Here, the action will be described focusing on body hair A1 located upstream of the non-human animal blood pressure checker 1 and body hair A2 located downstream.

FIG. 3A shows a state in which the blood pressure checker 1 for non-human animals is inserted between body hairs A (between body hairs A1 on the upstream side and body hairs A2 on the downstream side). In this state, the non-human animal blood pressure checker 1 is arranged such that the distal end surface 5b of the insertion section 5 is parallel to the fur of the animal. As shown in the enlarged view, a corner 5d formed between the distal end surface 5b of the blood pressure checker 1 for non-human animals and the peripheral surface 51a on the front side is located on the upstream side with respect to the blood pressure checker 1 for non-human animals. and the body hair A2 on the downstream side. The body hair A2 on the downstream side is located closer to the body surface B than the distal end surface 5b and is pressed between the distal end surface 5b and the body surface B.

FIG. 3(b) shows a state in which the insertion portion 5 is inserted between the body hairs A, moving through the body hairs A, and heading toward the measurement target portion B1 on the body surface B. In this state, the insertion part 5 is inserted between the body hairs A so as to face the fur from the state shown in FIG. 3(a). At this time, the body hair A1 on the upstream side is lifted by the corner 5d, and the body hair A2 on the downstream side is pressed downward (toward the body surface B side) by the tip surface 5b. The upstream body hair A1 lifted by the corner 5d is swept aside along the conical peripheral surfaces 51a and 52a of the blood pressure checker 1 for non-human animals. In other words, the upstream body hair A1 is located above the peripheral surface 51a on the front side of the insertion portion 5, and the downstream body hair A2 is located below the distal end surface 5b. In this embodiment, the distal end 5a of the insertion section 5 has a tapered shape that is thinner than the base end, so that the amount of body hair that can be pushed through is small, and the insertion section 5 is inserted between the body hair A. It's easy to do. Note that the insertion section 5 may be inserted between the body hairs A with the axis of the insertion section 5 tilted.

FIG. 3(c) shows a state in which the body hair A is pushed aside by the insertion section 5 and the distal end surface 5b is pressed against the periphery of the measurement target section B1. In this state, the insertion section 5 is inserted further toward the body surface B side than in the state shown in FIG. The insertion portion 5 is pressed perpendicularly to the body surface). At this time, the upstream body hair A1 is located upstream of the tip surface 5b and is raised from the body surface B along the slope of the front peripheral surface portion 51a. On the other hand, the body hair A2 on the downstream side is located below the distal end surface 5b (on the body surface B side) and is pressed against the body surface B side. The body hair A2 on the downstream side is sandwiched between the tip surface 5b and the body surface B.

FIG. 3(d) shows a state in which the insertion portion 5 pushes the body hair A1 on the upstream side and the body hair A2 on the downstream side apart at the root side, so that the distal end surface 5b is pressed against the exposed body surface B. has been done. In this state, while pressing the distal end surface 5b against the body surface B, it is slid along the body surface B to the upstream side of the fur. At this time, the body hair A1 on the upstream side that has stood up in the state shown in FIG. 3(c) is folded back from the root toward the upstream side by the corner 5d. On the other hand, the body hair A2 on the downstream side remains pressed against the body surface B. As a result, the body hair is separated into the upstream side and the downstream side on the body surface B side (root), and the measured portion B1 is exposed to the pulse wave sensor 10 provided on the distal end surface 5b. When the switch 17 of the non-human animal blood pressure checker 1 is pressed in this state, the blood pressure status of the animal is displayed on the display unit 15, and the blood pressure status can be checked.

Note that "the part to be measured B1 is exposed to the pulse wave sensor 10" as used herein means that the body surface of the part to be measured B1 is such that the pulse wave can be measured by the pulse wave sensor 10 (more specifically, the part to be measured B1 is exposed to the pulse wave sensor 10). light reaches the body surface, and the light receiving unit can capture the reflected light) A state in which a predetermined area is not covered by body hair. In other words, as long as the predetermined area is exposed to the pulse wave sensor 10, body hair may be pressed between the distal end surface 5b and the portion to be measured B1.

The predetermined area depends on the size and accuracy of the pulse wave sensor 10, but for example, the area of the base on which the pulse wave sensor is placed that can be seen from the opening 5c (in this embodiment, the area It is sufficient if the area is 50% or more of the area S1).

Further, as described above, since the distal end surface 5b is provided perpendicularly to the axial direction, when checking the blood pressure by pressing the distal end surface 5b (pulse wave sensor 10) against the body surface B, the distal end surface 5b 5b should be pressed perpendicularly to the body surface B. This suppresses component forces from acting on the distal end surface 5b, making it easier to ensure the necessary surface pressure at the time of measurement. As a result, it is easy to avoid problems such as a change in the relationship between the distal end surface 5b and the body surface B during measurement.

[Second embodiment]
FIG. 4 is a perspective view (upper view) showing a blood pressure checker 101 for non-human animals according to the second embodiment of the present invention, and a bottom view (lower view) of the blood pressure checker 101 for non-human animals viewed from the tip side in the axial direction. be. In the description of the non-human animal blood pressure checker 101, the same components as those described in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

Like the first embodiment, the casing 103 of the blood pressure checker 101 for non-human animals in the second embodiment includes a main body part 104 that is held by the person taking the measurement, and an insertion part 105 that is inserted between the hairs of the animal. There is. In the non-human animal blood pressure checker 101 according to the second embodiment, the configuration of the insertion section 105 is different from the insertion section 5 of the first embodiment.

Specifically, in the non-human animal blood pressure checker 101 of the second embodiment, a flat surface 151c that intersects with the distal end surface 105b is provided on a part of the peripheral surface section 151a on the front side of the insertion section 105. More specifically, the plane 151c is formed parallel to the axial direction of the insertion portion 105. The plane 151c and the distal end surface 105b formed perpendicular to the axial direction of the insertion portion 105 are orthogonal to each other.

A corner portion 105d serving as a wide linear parting portion is formed between the plane 151c and the tip surface 105b. The width W1 of the corner portion 105d is formed to be wider than the width W2 of the opening portion 105c. For example, the width W1 of the corner portion 105d may be any width that the light emitting section 11 and the light receiving section 12 face (for example, a width larger than the width at which the light emitting section 11 and the light receiving section 12 are arranged on the base). That is, it is preferable that the width W1 of the corner portion 105d has a width that allows body hair to be swept aside in the measurement target area where the pulse wave sensor 10 is placed when measuring a pulse wave.

An example of use of the non-human animal blood pressure checker 101 in the second embodiment having the above configuration will be described with reference to FIG. 5.

Similar to the first embodiment, FIG. 5 shows the relationship between the non-human animal blood pressure checker 101 and the animal's body hair A10 and body surface B10 when checking the blood pressure state of the animal with the non-human animal blood pressure checker 101. It is shown in a side view (upper figure) and a bottom view (lower figure). Note that the texture, length, density, etc. of the animal's body hair differ depending on the target animal, and for convenience of explanation, the animal body hair A and blood pressure checker 101 for non-human animals shown in FIG. It is shown schematically.

The method of using the non-human animal blood pressure checker 101 according to the second embodiment is similar to the first embodiment, with the distal end surface 105b being arranged parallel to the fur, and the insertion part 105 being inserted between the body hair. Then, the distal end surface 105b of the insertion section 105 is pressed against the measured section B11. The non-human animal blood pressure checker 101 according to the second embodiment is inserted with the plane 151c side (front side) facing upstream of the fur.

The function and effect of the linear corner portion 105d provided in the insertion portion 105 of the second embodiment are different from those of the first embodiment, and the other parts are the same. Here, the effects of the linear corner portion 105d of the second embodiment will be described using FIG. 5.

FIG. 5(a) shows a state in which the blood pressure checker 101 for non-human animals is inserted between body hairs A10 (between body hairs A11 on the upstream side and body hairs A12 on the downstream side), which corresponds to FIG. 3(a). It is shown. In this state, as described above, the linear corner 105d sweeps away the body hair A10 present in the area of the width W1 of the corner 105d. Therefore, the insertion portion 105 is easily inserted between the body hairs A10, and the distal end surface 105b is easily brought close to the body surface B10.

FIG. 5B shows an exposed body surface B, which corresponds to FIG. A state in which the tip end surface 5b is pressed is shown. In this state, the linear corner portion 105d forms a linear boundary B12 that separates the body hair around the measured portion B11 on the body surface B10 in a direction against the fur. Since this boundary B12 is formed with a width W1, the body hair in the width W2 of the measurement target part B11 (width of the opening 105c) where the pulse wave sensor 10 is arranged is swept aside and the body surface B10 is exposed. Easy to maintain.

[Third embodiment]
FIG. 6 is a partial cross-sectional view (upper view) and an enlarged partial cross-sectional view (lower view) of a side view of a non-human animal blood pressure checker 201 according to the third embodiment of the present invention. In the description of the non-human animal blood pressure checker 201, the same components as those described in the second embodiment are designated by the same reference numerals, and the description thereof will be omitted.

Like the second embodiment, the casing 103 of the blood pressure checker 201 for non-human animals in the third embodiment includes a main body part 204 that is held by the measurement person, and an insertion part 205 that is inserted between the animal's body hair. . The insertion section 205 of the non-human animal blood pressure checker 201 in the third embodiment is different from the insertion section 105 in the second embodiment.

Specifically, in the non-human animal blood pressure checker 201 of the third embodiment, the distal end surface 205b of the insertion section 205 is arranged to be inclined with respect to the axial direction of the insertion section 205. The angle θ1 of the corner portion 205d between the tip surface 205b, a flat surface 251c provided on a part of the peripheral surface portion 251a on the front side, and the tip surface 205b is formed to be 90 degrees or less. The angle θ1 of the corner portion 205d is preferably an angle that allows easy insertion between body hairs, and may be, for example, 30 degrees or more and 90 degrees or less. If the angle is less than 30 degrees, the tip will be sharp and there is a high possibility of injuring the animal when inserting it, and the distance from the main body held by the measurer to the part to be measured will be long, making it difficult to avoid non-human animals during blood pressure measurement. It is difficult to stabilize the animal blood pressure checker and measure it. If the angle is 90 degrees or more, the ease of insertion into body hair will not improve. Note that in the third embodiment, the opening 205c and the pulse wave sensor 210 may be arranged parallel to the distal end surface 205b.

A usage example of the non-human animal blood pressure checker 201 in the third embodiment having the above configuration will be described with reference to FIG. 7.

Similar to the first embodiment, FIG. 7 shows the relationship between the non-human animal blood pressure checker 201 and the animal's body hair A20 and body surface B20 when checking the blood pressure state of the animal with the non-human animal blood pressure checker 201. It is shown in a side view (upper figure) and a plan view (lower figure). Note that the texture, length, density, etc. of the animal's body hair differ depending on the target animal, and for convenience of explanation, the animal body hair A and non-human animal blood pressure checker 201 in FIG. It is shown schematically.

The method of using the non-human animal blood pressure checker 201 according to the third embodiment is similar to the first embodiment, with the distal end surface 205b being arranged parallel to the fur, and the insertion portion 205 being inserted between the body hair A20. The distal end surface 205b of the insertion portion 205 is pressed against the measurement target portion B21. The non-human animal blood pressure checker 201 according to the third embodiment is inserted with the corner 205d side (front side) facing upstream of the fur.

The distal end surface 205b of the non-human animal blood pressure checker 201 of the third embodiment is inclined with respect to the axial direction of the insertion section 205 (more specifically, formed by the flat surface 251c of the insertion section 205 and the distal end surface 205b). This embodiment differs from the second embodiment in that the angle θ1 of the corner portion 205d is 90 degrees or less, but the other parts are the same. Here, with reference to FIG. 7, the effects of the tip surface 205b of the third embodiment being inclined with respect to the axial direction will be described.

FIG. 7 shows a state where the non-human animal blood pressure checker 201 corresponding to FIG. 3(a) is inserted between body hairs A20 (between upstream body hairs A21 and downstream body hairs A22). . In the third embodiment, the distal end surface 205b is inclined with respect to the axial direction of the insertion section 205, so when the distal end surface 205b is arranged parallel to the fur, the peripheral surface of the insertion section 205 is oriented in the direction along the fur. It will be in a tilted state.

Since the angle θ1 of the corner 205d formed by the flat surface 251c of the insertion portion 205 and the distal end surface 205b is 90 degrees or less, the corner 205d is closer to the body hair A20 than when the angle θ1 is an obtuse angle. It's easy to insert in between, and it's easy to remove body hair. Thereby, the distal end surface 205b can be brought close to the body surface B20.

[Fourth embodiment]
FIG. 8(a) is an external perspective view and partially enlarged view showing a non-human animal blood pressure checker 301 according to a fourth embodiment of the present invention, and FIG. 8(b) is a bottom view. In the description of the non-human animal blood pressure checker 301, the same components as those described in the second embodiment are designated by the same reference numerals and the description thereof will be omitted.

Like the second embodiment, the casing 303 of the blood pressure checker 301 for non-human animals in the fourth embodiment includes a main body 304 that is held by a measurement person, and an insertion part 305 that is inserted between the hairs of the animal. In the non-human animal blood pressure checker 301 according to the fourth embodiment, the configuration of the insertion section 305 is different from the insertion section 205 according to the second embodiment.

Specifically, the non-human animal blood pressure checker 301 of the fourth embodiment has a flange portion 353 as a scraping portion that protrudes outward from a part of the circumferential surface portion 351a as a side surface portion of the distal end portion 305a of the insertion portion 305. It is provided.

The flange portion 353 includes a bottom portion 353a extending radially outward along the distal end surface 305b, and an axial center extending from the radially outer end of the bottom portion 353a toward the rear end side (main body portion 304 side) in the axial direction. It includes a slope portion 353b that slopes toward the side. A linear corner portion 353c is formed between the bottom surface portion 353a and the slope portion 353b. It is preferable that the width W31 of the corner portion 353c is greater than or equal to the width W32 of the opening 305c provided in the distal end surface 305b. The width W31 of the corner portion 353c is similar to the width W1 of the corner portion 105d in the second embodiment, and is a width that allows body hair to be swept through the measurement target area where the pulse wave sensor 10 is placed when measuring a pulse wave. is desirable.

A usage example of the non-human animal blood pressure checker 301 in the fourth embodiment having the above configuration will be described with reference to FIG. 9.

Similar to the first embodiment, FIG. 9 shows the relationship between the non-human animal blood pressure checker 301 and the animal's body hair A30 and body surface B30 when checking the blood pressure state of the animal with the non-human animal blood pressure checker 301. It is shown in a side view (upper figure) and a plan view (lower figure). Note that the texture, length, density, etc. of the animal's body hair differ depending on the target animal, and for convenience of explanation, the animal body hair A30 and non-human animal blood pressure checker 301 in FIG. It is shown schematically.

The method of using the blood pressure checker 301 for non-human animals according to the fourth embodiment is similar to the first embodiment, with the distal end surface 305b being arranged parallel to the fur, and the insertion part 305 being inserted between the body hair. Then, the distal end surface 305b of the insertion section 305 is pressed against the measured section B31. The non-human animal blood pressure checker 301 according to the fourth embodiment is inserted with the corner 353c side (front side) of the flange 353 facing upstream of the fur.

The effect of the flange portion 353 provided on the insertion portion 305 of the fourth embodiment is different from that of the second embodiment, but the other parts are the same. Here, the effects of the flange portion 353 of the fourth embodiment will be described using FIG. 9. Note that the linear corner portion 353c of the flange portion 353 has the same effect as the linear corner portion 105d of the second embodiment.

FIG. 9(a) shows a state in which the non-human animal blood pressure checker 301 corresponding to FIG. 3(a) is inserted between body hairs A30 (between body hairs A31 on the upstream side and body hairs A32 on the downstream side). has been done. In this state, as described above, the body hair A31 on the upstream side is pushed aside (hooked) by the flange portion 353, and the insertion portion 305 can be inserted between the body hair A30. More specifically, the insertion portion 305 is inserted by inserting the corner portion 353c between the upstream body hair A31 and the downstream body hair A32, and lifting the upstream body hair A31 along the slope portion 353b of the flange portion 353. It becomes easier to insert between body hair A30.

In FIG. 9(b), body hair A31 on the upstream side and body hair A32 on the downstream side are separated at the root side by the insertion portion 305 corresponding to FIG. 3(d), so that the exposed body surface B30 is A state in which the tip surface 305b is pressed is shown. In this state, the flange portion 353 extends radially outward of the insertion portion 305, so that the body hair A33 located upstream of the measured portion B31 can be brushed aside against the fur. This makes it easier to move the body hair A31 on the upstream side and in the vicinity of the measured part B31 by moving it against the fur, making it easier to maintain the exposed state of the body surface B10.

[Fifth embodiment]
FIG. 13 is a system diagram and a side view showing a blood pressure checker 501 for non-human animals according to a fifth embodiment of the present invention. In the description of the non-human animal blood pressure checker 501, the same components as those described in the third embodiment are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 13, the blood pressure checker 501 for non-human animals includes a main body part 504 provided with a blood pressure calculation part 521 and a display part 515, and an insertion part 505 that extends in a columnar shape and is inserted between the hairs of the non-human animal. are composed of separate bodies. The main body portion 504 and the insertion portion 505 are connected by wire through a cable or the like. The main body part 504 and the insertion part 505 may be connected wirelessly, for example, by Bluetooth (registered trademark) or the like. The main body portion 504 may be replaced by a smartphone or the like.

In this embodiment, the insertion section 505 has a prismatic shape, and a distal end surface 505b is arranged to be inclined with respect to the axial direction of the insertion section 505. In this embodiment, the length L1 of the long side of the insertion portion 505 in the axial direction is set to 38 mm, and the length L2 of the short side of the insertion portion 505 in the axial direction is set to 29 mm. The axial lengths L1 and L2 of the insertion portion 505 are preferably 20 mm or more and 50 mm or less. When the axial lengths L1 and L2 are less than 20 mm, it is difficult to insert the sensor between the hairs of a non-human animal, and when the axial lengths L1 and L2 exceed 50 mm, it causes anxiety to the non-human animal, It tends to be difficult to apply the tip to the measurement area correctly.

As shown in FIG. 14, in this embodiment, the vertical length L4 of the distal end surface 505b is set to 20 mm, and the horizontal length L5 is set to 18 mm, so the area S504 is 360 mm ² . In the measurement region R, the length L6 in the vertical direction is set to 5 mm and the length L7 in the horizontal direction is set to 2 mm, so the area S502 is 10 mm ² . Since the opening 505c has a vertical length L8 of 6 mm and a horizontal length L9 of 3.5 mm, the area S501 is 21 mm ² . In other words, the ratio of the area S504 of the distal end surface 505b to the area S502 of the measurement region R is set to 2 times or more and 40 times or less.

Referring to FIGS. 13 and 14, a cylindrical grip portion 506 that is gripped by a measurer is integrally provided at the rear end of the insertion portion 505. The diameter D3 of the grip portion 506 is set to 30 mm. The diameter D3 may be set to 10 mm or more and 40 mm or less. If the diameter D3 is less than 10 mm, for example, it is difficult to arrange a control board for driving the pulse wave sensor 10, and if the diameter D3 exceeds 40 mm, it is difficult to grip the grip part with the fingertips of the measurer.

The axial length L10 of the grip portion 506 is set to 60 mm. The axial length L10 may be set to 20 mm or more and 60 mm or less. If the axial length L10 is less than 20 mm, for example, it is difficult to arrange a control board for driving the pulse wave sensor 10, and if the axial length L10 exceeds 60 mm, the grip portion may be held by the fingertips of the measurer. It's hard to do. By making the main body part 504 separate in this way, the insertion part 505 and the grip part 506 can be made compact. Specifically, since the insertion portion 505 is sized to be easily inserted into the abdomen of a non-human animal, it is easy to press the distal end surface 505b or the measurement region R against the portion to be measured regardless of the posture of the non-human animal.

Note that the present invention is not limited to the configuration described in the above embodiments, and various changes are possible.

For example, the flange portion 353 of the non-human animal blood pressure checker 301 of the fourth embodiment may be formed in a comb-teeth shape, as shown in FIG. 10(a). More specifically, the flange portion 453 is provided with a plurality of groove portions 453d extending radially outward, thereby forming the flange portion 453 into a comb-teeth shape. A groove bottom (tooth bottom) 453e of each groove 453d is provided parallel to the long side of the opening 405c.

With this configuration, as shown in FIG. 10(b), when the distal end surface 405b of the insertion portion 405 is pressed against the body surface B40 (corresponding to FIG. 3(d)), the groove bottom of the comb-shaped flange portion 453 The body hair is held in 453e. Thereby, it is easy to maintain a state in which the body hair around the part to be measured B41 is brushed aside against the grain. Furthermore, by holding the body hair A41 on the side of the groove bottom 453e, it is possible to suppress the displacement of the distal end surface 405b in a direction perpendicular to both the fur and the axial direction of the insertion portion 405.

For example, in the second to fourth embodiments described above, each insertion portion is a truncated cone, but each insertion portion does not have to be a truncated cone, but may be a column extending in a columnar shape and having a constant diameter. You can.

For example, in the above-described embodiment, an example was described in which the display unit 15 displays the blood pressure value or the state of the blood pressure value based on the blood pressure value in color. The state of blood pressure may be indicated using various display methods, such as "hypertension."

For example, the control device 20 may include a signal section for notifying whether the state in which the measurement region R is appropriately pressed against the part to be measured B51 is maintained. For example, the control device 20 determines whether the blood pressure calculated by the blood pressure calculation unit 21 exceeds a predetermined threshold, or whether the blood pressure calculation unit 21 is able to acquire enough pulse waves to calculate the blood pressure. Determine whether blood pressure measurement is possible. When the control device 20 determines that blood pressure measurement is possible, the signal section may emit an electronic sound, for example.

For example, the blood pressure checker for non-human animals has been described as having a sifting section that rakes out body hair depending on the shape of the casing. It may also have a function.

As shown in FIGS. 12(a) and 12(c), the non-human animal blood pressure checker 1 presses the distal end surface 5b against the body surface B50 of the human animal's body hair-free measurement target B51, for example, the paw pad, etc. Pulse waves of non-human animals may also be measured. In this case, the blood pressure checker 1 for non-human animals does not need to include an insertion section and a scraping section, and instead of the insertion section 5, the main body 4 of the casing 3 may be provided with a tip end surface and an opening. .

[Additional Note] The present disclosure includes the following aspects.

[Aspect 1]
A blood pressure checker for a non-human animal that measures the blood pressure of a non-human animal with body hair by measuring the pulse wave of the non-human animal includes a light-emitting part that emits light on the body surface of the non-human animal; an optical pulse wave sensor comprising: a light receiving section that receives light reflected from an animal's body; a blood pressure calculating section that calculates blood pressure from a pulse wave signal measured by the pulse wave sensor; and the blood pressure calculating section. a display section that displays the state of blood pressure based on the calculation results; a main body section in which the blood pressure calculation section and the display section are provided; and an insertion section that extends in a columnar shape and is inserted between the hairs of the non-human animal. The insertion section has a distal end surface that is pressed against the measurement target part of the non-human animal and exposes the pulse wave sensor to the outside, and a distal end surface that is pressed against the measurement target part of the non-human animal, and A blood pressure checker for non-human animals, characterized in that the blood pressure checker is equipped with a sifting part for sifting out the body hair of a non-human animal.

[Aspect 2]
A blood pressure checker for a non-human animal that measures the blood pressure of a non-human animal with body hair by measuring the pulse wave of the non-human animal,
an optical pulse wave sensor comprising: a light emitting unit that emits light onto the body surface of the non-human animal; and a light receiving unit that receives light reflected from the body of the non-human animal;
a blood pressure calculation unit that calculates blood pressure from the pulse wave signal measured by the pulse wave sensor;
a display unit that displays the blood pressure status based on the calculation result of the blood pressure calculation unit;
a main body section provided with the blood pressure calculation section and the display section;
an insertion part that extends in a columnar shape and is inserted between the hairs of the non-human animal,
The insertion portion is provided with a tip surface that is pressed against the measurement target portion of the non-human animal,
The tip surface includes an opening that allows a measurement area in which the light emitting part and the light receiving part of the pulse wave sensor are arranged to be exposed to the outside,
The blood pressure checker for non-human animals, wherein the area of the measurement area is set smaller than the area of the measurement target part.

[Aspect 3]
The blood pressure checker for non-human animals according to Aspect 1 or Aspect 2, wherein the insertion portion is configured separately from the main body portion.

[Aspect 4]
The blood pressure checker for non-human animals according to Aspect 1 or Aspect 2, wherein the insertion portion extends from an end surface of the main body portion and is integrally formed.

[Aspect 5]
The blood pressure checker for non-human animals according to any one of aspects 1 to 4, wherein the ratio of the area of the tip surface to the area of the measurement region is set to 2 times or more and 40 times or less. .

[Aspect 6]
In the blood pressure checker for non-human animals, the non-human animal according to aspect 1, wherein the scraping part is configured by making the insertion part tapered from the main body side toward the distal end surface. blood pressure checker.

[Aspect 7]
The blood pressure checker for non-human animals according to aspect 1, wherein the scraping part is configured such that the distal end surface is arranged obliquely with respect to the axial direction of the insertion part.

[Aspect 8]
The non-human according to aspect 1, wherein the scraping part is constituted by the distal end surface and a plane provided on at least a part of the side surface of the insertion section and intersecting the distal end surface. Veterinary blood pressure checker.

[Aspect 9]
9. The blood pressure checker for non-human animals according to aspect 8, wherein the angle between the tip surface and the plane is 90 degrees or less.

[Aspect 10]
The blood pressure for non-human animals according to any one of aspects 1 to 9, wherein the distal end surface is arranged perpendicularly to the axial direction of the insertion section, and the plane is perpendicular to the distal end surface. checker.

[Aspect 11]
The blood pressure checker for non-human animals according to aspect 1, wherein the scraping portion is a flange portion that projects outward from a part of a side surface of the distal end portion of the insertion portion.

[Aspect 12]
12. The blood pressure checker for non-human animals according to aspect 11, wherein the flange portion is formed in a comb-teeth shape.

[Aspect 13]
The blood pressure checker for non-human animals according to aspect 2, wherein the area of the measurement region is set to 7 mm ² or more and 16 mm ² or less.

[Aspect 14]
The blood pressure checker for non-human animals according to any one of aspects 1 to 13, wherein the luminous intensity of the light emitting part is set to 40 mcd or more and 120 mcd or less.

[Aspect 15]
Aspect 1, wherein the display section displays at least one of the blood pressure value calculated by the blood pressure calculation section and a determination result as to whether the blood pressure value is within a predetermined range. The blood pressure checker for non-human animals according to any one of aspects 14 to 14.

[Aspect 16]
A method of using a blood pressure checker for a non-human animal that measures the pulse wave of a non-human animal with body hair to check the state of the blood pressure of the non-human animal, the method comprising: scraping the body hair of the measurement target part of the non-human animal; an optical device comprising: a light emitting unit that exposes the body surface of the measurement target portion and emits light onto the body surface of the non-human animal; and a light receiving unit that receives light reflected from the body of the non-human animal. The pulse wave of the non-human animal is measured by pressing the blood pressure checker for non-human animals equipped with a pulse wave sensor of the formula against the measurement target part, and the blood pressure is calculated based on the pulse wave. do.

[Aspect 17]
The blood pressure checker for non-human animals includes a scraping part that scrapes the body hair of the non-human animal, and when scraping the body hair of the measurement target part, the blood pressure checker for non-human animals is arranged so that the blood pressure checker for non-human animals is brushed against the body hair of the non-human animal. 17. The method of using the blood pressure checker for non-human animals according to aspect 16, wherein the blood pressure checker is inserted so as to face each other.

[Aspect 18]
A method of using a blood pressure checker for a non-human animal that measures the pulse wave of a non-human animal with body hair to check the state of the blood pressure of the non-human animal, the method comprising emitting light onto the body surface of the non-human animal. The blood pressure checker for non-human animals, which includes an optical pulse wave sensor including a light emitting part and a light receiving part that receives light reflected from the body of the non-human animal, A method of using the blood pressure checker for non-human animals, characterized in that the pulse wave of the non-human animal is measured by pressing it against the body surface of the measurement target part, and the blood pressure is calculated based on the pulse wave.

In Comparative Examples 1 and 2 and Examples 1, 2, and 3, an evaluation test was conducted regarding the pulse wave sensors 10 having different areas S2 of the measurement region R to determine whether the pulse wave sensors 10 could measure the pulse waves of non-human animals. As the pulse wave sensor of Comparative Example 1, Pulse Wave Sensor (Serial) for Noru LAB Model No. M5 Stick C-PULSE 08 was used. The pulse wave sensor used in Comparative Example 2 was Yunkear, model number MKB0805, manufactured by Yunkear. As the pulse wave sensor of Example 1, model number BH1792GLC manufactured by ROHM Co., Ltd. was used. The pulse wave sensor of Example 2 used a processed product manufactured by ROHM Co., Ltd., model number BH1792GLC. As the pulse wave sensor of Example 3, a model number MKB0706 Yunkear manufactured by Yun▲Den▼Yunkear was used. Note that the second embodiment is a processed product equipped with only one of the two green LEDs mounted in the first embodiment.

Comparative Example 1 and Comparative Example 2 are pulse waves in which the area S2 of the measurement region R is set to 50 mm ² and 24 mm ² , respectively, and the area S2 of the measurement region R exceeds the area S3 of the part to be measured B51, which is the upper limit of the invention. This is the sensor 10. In Examples 1, 2, and 3, the area S2 of the measurement region R is 16 mm ² , 10 mm ² , and 7 mm ² . The part to be measured used for evaluation is a cat's paw pad.

The measurability was evaluated based on whether a pulse wave with a constant period could be obtained when the signal obtained from the pulse wave sensor was plotted against the time axis.

As is clear from Table 1, the pulse wave sensors according to Examples 1 to 3 in which the area S2 of the measurement region is 7 mm ² or more and 16 mm ^{2 or} less can perform measurements better than Comparative Examples 1 and 2. To optically obtain a pulse wave from a non-human animal, the light emitting part and light receiving part are installed on the same plane, and in the case of a pulse wave sensor that emits and receives light in parallel, the light is irradiated on the animal's body surface. It is desirable that the portion and the portion that reflects light be on the same plane. Therefore, since the paws are generally rounded, in order to properly measure the pulse wave, the part of the paws that is irradiated with light and the part that reflects the light must be on a flat surface. The range needs to be narrow, and Comparative Examples 1 and 2 exceed this range, making it difficult for the light emitting section to irradiate the measured section, and making it difficult for the light receiving section to receive reflected light from the measured section. As a result, it is not possible to accurately measure the pulse wave.

In Examples 1, 2, and 3, the area S2 of the measurement region R is 16 mm ² , 10 mm ² , and 7 mm ² , which are appropriate, so that the light from the light emitting part is easily irradiated onto the measured part B51, and the area S2 is moderate. It is easy to receive reflected light.

In Examples 1 to 4, evaluation tests were conducted to determine whether pulse waves of humans and non-human animals could be measured using pulse wave sensors 10 having different luminous intensities (mcd). The pulse wave sensor used in Examples 1 to 4 was BH1792GLC ROHM. In Examples 1 to 4, the luminous intensity is 40 mcd, 70 mcd, 100 mcd, and 120 mcd. The parts to be measured used in the evaluation are a human palm and a cat's paw.

The measurability was evaluated based on whether a pulse wave with a constant period could be obtained when the signal obtained from the pulse wave sensor was plotted against the time axis.

In Examples 1 to 4, the light intensities are 40 mcd, 70 mcd, 100 mcd, and 120 mcd, which are appropriate for non-human animals, so pulse waves can be measured without causing halation due to reflected light from the measurement target. In Example 2, particularly good measurement results were obtained. When it exceeds 120 mcd, halation tends to occur.

1 Blood pressure checker for non-human animals 3 Casing 4 Main body part 5 Insertion part 5a Distal end part 5b Distal end surface 5c Opening part 10 Pulse wave sensor 11 Light emitting part 12 Light receiving part 15 Display part 21 Blood pressure calculation part 51a, 52a Surrounding part (side part)
105d, 205d, 353, 453 Corner section, flange section (scraping section)
151c Plane A Body hair B Body surface B1 Part to be measured B51 Part to be measured R Measurement area S2 Area of measurement area S3 Area of part to be measured S4 Area of tip surface

Claims (18)

A blood pressure checker for a non-human animal that measures the blood pressure of a non-human animal with body hair by measuring the pulse wave of the non-human animal,
an optical pulse wave sensor comprising: a light emitting unit that emits light onto the body surface of the non-human animal; and a light receiving unit that receives light reflected from the body of the non-human animal;
a blood pressure calculation unit that calculates blood pressure from the pulse wave signal measured by the pulse wave sensor;
a display unit that displays the blood pressure status based on the calculation result of the blood pressure calculation unit;
a main body section provided with the blood pressure calculation section and the display section;
an insertion part that extends in a columnar shape and is inserted between the hairs of the non-human animal,
The insertion section includes a distal end surface that is pressed against the measurement target part of the non-human animal and exposes the pulse wave sensor to the outside, and a distal end surface that is pushed against the measurement target part of the non-human animal, and a distal end surface that sweeps through the body hair of the non-human animal in order to press the distal end surface against the body surface. A blood pressure checker for non-human animals, comprising: A blood pressure checker for a non-human animal that measures the blood pressure of a non-human animal with body hair by measuring the pulse wave of the non-human animal,
an optical pulse wave sensor comprising: a light emitting unit that emits light onto the body surface of the non-human animal; and a light receiving unit that receives light reflected from the body of the non-human animal;
a blood pressure calculation unit that calculates blood pressure from the pulse wave signal measured by the pulse wave sensor;
a display unit that displays the blood pressure status based on the calculation result of the blood pressure calculation unit;
a main body section provided with the blood pressure calculation section and the display section;
an insertion part that extends in a columnar shape and is inserted between the hairs of the non-human animal,
The insertion portion is provided with a tip surface that is pressed against the measurement target portion of the non-human animal,
The tip surface includes an opening that allows a measurement area in which the light emitting part and the light receiving part of the pulse wave sensor are arranged to be exposed to the outside,
The blood pressure checker for non-human animals, wherein the area of the measurement area is set smaller than the area of the measurement target part. The blood pressure checker for non-human animals according to claim 1 or 2, wherein the insertion section is configured separately from the main body section. 3. The blood pressure checker for non-human animals according to claim 1, wherein the insertion section extends from an end surface of the main body and is integrally formed. The blood pressure checker for non-human animals according to claim 2, wherein the ratio of the area of the tip surface to the area of the measurement region is set to 2 times or more and 40 times or less. 2. The blood pressure checker for non-human animals according to claim 1, wherein the scraping part is configured by making the insertion part tapered from the main body side toward the distal end surface. 2. The blood pressure checker for non-human animals according to claim 1, wherein the distal portion is configured such that the distal end surface is inclined with respect to the axial direction of the insertion portion. The non-slip device according to claim 1, wherein the scraping portion is constituted by the distal end surface and a plane provided on at least a part of a side surface of the insertion portion and intersecting the distal end surface. Blood pressure checker for human and animal use. 9. The blood pressure checker for non-human animals according to claim 8, wherein the angle between the tip surface and the plane is 90 degrees or less. The distal end surface is arranged perpendicularly to the axial direction of the insertion section,
The blood pressure checker for non-human animals according to claim 8, wherein the plane is perpendicular to the tip surface. 2. The blood pressure checker for non-human animals according to claim 1, wherein the scraping part is a flange part that projects outward from a part of a side surface of the distal end of the insertion part. The blood pressure checker for non-human animals according to claim 11, wherein the flange portion is formed in a comb-teeth shape. The blood pressure checker for non-human animals according to claim 2, wherein the area of the measurement region is set to 7 mm ² or more and 16 mm ² or less. The blood pressure checker for non-human animals according to claim 1 or 2, wherein the luminous intensity of the light emitting part is set to 40 mcd or more and 120 mcd or less. The display unit displays at least one of the blood pressure value calculated by the blood pressure calculation unit and a determination result as to whether the blood pressure value is within a predetermined range. The blood pressure checker for non-human animals according to claim 1 or claim 2. A method of using a blood pressure checker for a non-human animal that measures the pulse wave of a non-human animal with body hair to check the state of blood pressure of the non-human animal, the method comprising:
Parting the body hair of the part to be measured of the non-human animal to expose the body surface of the part to be measured;
The non-human animal is equipped with an optical pulse wave sensor including a light-emitting part that emits light onto the body surface of the non-human animal, and a light-receiving part that receives light reflected from the body of the non-human animal. Measuring the pulse wave of the non-human animal by pressing a blood pressure checker against the measurement target part,
A method of using the blood pressure checker for non-human animals, characterized in that blood pressure is calculated based on the pulse wave. The blood pressure checker for non-human animals includes a scraping part that scrapes the body hair of the non-human animal,
17. The blood pressure for non-human animals according to claim 16, wherein the blood pressure checker for non-human animals is inserted so as to face the fur of the body hair of the non-human animal when the body hair of the measurement target part is removed. How to use checkers. A method of using a blood pressure checker for a non-human animal that measures the pulse wave of a non-human animal with body hair to check the state of blood pressure of the non-human animal, the method comprising:
The non-human animal is equipped with an optical pulse wave sensor including a light-emitting part that emits light onto the body surface of the non-human animal, and a light-receiving part that receives light reflected from the body of the non-human animal. Measuring the pulse wave of the non-human animal by pressing a blood pressure checker against the hair-free body surface of the non-human animal to be measured;
A method of using the blood pressure checker for non-human animals, characterized in that blood pressure is calculated based on the pulse wave.

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