JP7055671B2 - Cuff for blood pressure monitor - Google Patents

Description

The present invention relates to a band-shaped sphygmomanometer cuff wrapped around a measurement site.

Conventionally, a sphygmomanometer cuff has an elastic core having a substantially cylindrical portion cut out and has an opening so that it can be attached to an upper arm or wrist inserted through the opening, and when attached, it is attached. It is configured to cover the upper arm or wrist to some extent so that it does not easily come off (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 59-51837

In Patent Document 1, a sphygmomanometer cuff that accommodates a curved plate (core) that can substantially follow the upper arm of the human body in a cuff band and forms an opening in which the upper arm of the human body can be inserted between both ends of the curved plate. Is disclosed. Further, Patent Document 1 discloses a sphygmomanometer cuff in which one end of a curved plate is flipped outward and deformed.

However, the sphygmomanometer cuff described in Patent Document 1 is deformed by flipping up so that one end of the curved plate is inclined toward the other end, and therefore, when the upper arm is inserted into the curved plate from the opening. There is a problem that the upper arm hits the tip of this flip-up deformed shape and the wearability is poor.

Therefore, an object of the present invention is to provide a sphygmomanometer cuff that is not easily removed and has improved wearability.

In order to achieve the above object, the sphygmomanometer cuff of the present invention is housed in a cover body wound around the measured portion, and includes an elastic core that curves along the measured portion. The core has a core body having a C-shaped cross section having an opening formed by cutting out a part of a substantially cylindrical shape, and an end portion of the core body which is outside the core body from the end portion of the core body. It is characterized by including a barb extending in a direction away from the vertical plane of the plane connecting the spaces.

The sphygmomanometer cuff of the present invention configured in this way can be prevented from being easily removed and can be easily worn.

It is a perspective view which shows the structure of the wrist-worn type sphygmomanometer provided with the cuff for the wrist-worn type sphygmomanometer of Example 1. FIG. It is sectional drawing which shows the structure of the wrist-worn type sphygmomanometer provided with the cuff for the wrist-worn type sphygmomanometer of Example 1. FIG. It is a side view which shows the structure of the core of the cuff for a wrist-worn type sphygmomanometer of Example 1. FIG. It is explanatory drawing explaining the operation of the cuff for a wrist-worn type sphygmomanometer of Example 1, and shows the state in which the wrist is in contact with the side surface of the return part. It is explanatory drawing explaining the operation of the cuff for a wrist-worn type sphygmomanometer of Example 1, and shows the state which the opening is widened. It is explanatory drawing explaining the structure and operation of the cuff for a wrist-worn type sphygmomanometer of Example 2, and shows the state where the wrist is in contact with the side surface of the return part. It is explanatory drawing explaining the operation of the cuff for a wrist-worn type sphygmomanometer of Example 2, and shows the state which the opening is widened. It is explanatory drawing explaining the structure and operation of the cuff for a wrist-worn type sphygmomanometer of Example 3, and shows the state where the wrist is in contact with the side surface of the return part. It is explanatory drawing explaining the operation of the cuff for a wrist-worn type sphygmomanometer of Example 3, and shows the state which the opening is widened. It is explanatory drawing explaining the structure and operation of the cuff for a wrist-worn type sphygmomanometer of Example 4, and shows the state where the wrist is in contact with the side surface of the return part. It is explanatory drawing explaining the operation of the cuff for a wrist-worn type sphygmomanometer of Example 4, and shows the state which the opening is widened.

Hereinafter, embodiments for realizing the sphygmomanometer cuff according to the present invention will be described with reference to Examples 1 to 3 shown in the drawings.

First, the configuration of the sphygmomanometer cuff in Example 1 will be described.
The sphygmomanometer cuff in Example 1 is applied to a wrist-worn sphygmomanometer cuff provided in a wrist-worn sphygmomanometer that measures the blood pressure of the wrist as a measurement site.

[Structure of wrist-worn sphygmomanometer]
FIG. 1 is a perspective view showing the configuration of a wrist-worn sphygmomanometer provided with a wrist-worn sphygmomanometer cuff according to the first embodiment. FIG. 2 is a cross-sectional view showing the configuration of a wrist-worn sphygmomanometer provided with a wrist-worn sphygmomanometer cuff according to the first embodiment. Hereinafter, the configuration of the wrist-worn sphygmomanometer of Example 1 will be described with reference to FIGS. 1 and 2.

As shown in FIG. 1, the wrist-mounted sphygmomanometer 1 includes a device main body 10 and a wrist-mounted sphygmomanometer cuff 20 wrapped around the wrist M. The surface of the apparatus main body 10 is provided with a display unit 11 and an operation unit 12.

The device main body 10 is arranged from the back side of the hand to the thumb side with the wrist-mounted blood pressure monitor 1 attached to the wrist M so that the person to be measured can visually recognize the display unit 11 and operate the operation unit 12. It has become. A pump, a slow leak valve, a pressure sensor, etc. (not shown) are built in the device main body 10.

As shown in FIG. 2, the wrist-worn sphygmomanometer cuff 20 includes a cover body 21 that is wound around the wrist M, and an air bag 22 and a core 30 that are housed inside the cover body 21. ..

The cover body 21 is formed of a band-shaped cloth or the like, and is formed longer than the general peripheral length of the wrist M. A hook-and-loop fastener 23 is attached in the vicinity of the folded-back portion 21a of the cover body 21. The surface fastener 23 is fixed by pressing against the surface fastener 24 provided on the upper surface of the apparatus main body 10.

The air bag 22 is formed of a bag-shaped member formed of a resin sheet. The air bag 22 is expanded by the air introduced from the pump of the apparatus main body 10.

In the wrist-mounted sphygmomanometer 1 configured in this way, the wrist-mounted sphygmomanometer 1 is covered by wrapping the wrist-mounted sphygmomanometer cuff 20 around the wrist M and attaching the surface fastener 23 and the surface fastener 24. It is attached to the wrist M of the measurer. By operating the operation unit 12 with the wrist-mounted blood pressure monitor 1 attached to the wrist M of the person to be measured, air is introduced from the pump of the apparatus main body 10 into the inside of the air bag 22. When air is introduced into the air bag 22, the artery of the wrist M is compressed.

After that, the drive of the pump built in the device main body 10 is stopped, and the air in the air bag 22 is gradually removed from the slow leak valve built in the device main body 10 to reduce the pressure in the air bag 22. .. At this time, the change in pressure in the air bag 22 due to the pulsation of the artery of the wrist M is detected by the pressure sensor built in the apparatus main body 10 and displayed on the display unit 11.

[Core configuration]
FIG. 3 is a side view showing the configuration of the core of the wrist-worn sphygmomanometer cuff according to the first embodiment. Hereinafter, the configuration of the core of the wrist-worn sphygmomanometer of Example 1 will be described with reference to FIG.

The core 30 is formed of a flexible elastic body, and as shown in FIG. 3, is composed of a core main body 31 that curves along the wrist M and a return portion 36a that projects from the core main body 31. ..

The core main body 31 has a bottom portion 32 having a substantially arcuate cross section, side wall portions 33a and 33b rising from both ends of the bottom portion 32, and narrowed portions 34a and 34b formed by bending inward from the tips of the side wall portions 33a and 33b. And consists of.

The ends 35a, 35b of the narrowed portions 34a, 34b are formed as open ends. An opening 50 having an opening length h is formed between the end portion 35a and the end portion 35b. The opening 50 is formed substantially in the center of the core body 31 in the vertical direction of FIG. In the left-right direction of FIG. 3, the end portion 35a and the end portion 35b are at substantially the same position.

That is, the core main body 31 is formed in a C-shaped cross section having an opening 50 formed by cutting out a part of a substantially cylindrical shape. The opening length h is the shortest distance between the end portion 35a and the end portion 35b forming the cross-sectional C shape.

The return portion 36a extends from the end portion 35a of the core main body 31 in a direction away from the vertical surface P2 of the plane P1 which is outside the core main body 31 and connects the ends 35a and 35b of the core main body 31. .. In other words, the return portion 36a is outside the outer peripheral surface of the core main body 31 from the end portion 35a on the side (upper side in FIG. 3) to which the device main body 10 is attached among the end portions 35a and 35b forming a C-shaped cross section. The opening 50 is formed so as to project in the direction of widening. The side surface 37a of the return portion 36a is formed flat.

The side surface 37a of the return portion 36a may have a curved surface shape. Further, the return portion 36a has a core from the end portions 35a and 35b forming a C-shaped cross section, which are opposite to the end portion 35a on the side where the device main body 10 is attached (upper side in FIG. 3). It may be formed so as to project on the outside of the outer peripheral surface of the main body 31 in the direction in which the opening 50 expands.

Next, the operation of the wrist-worn sphygmomanometer cuff 20 of Example 1 will be described.
FIG. 4A is an explanatory diagram illustrating the operation of the wrist-worn sphygmomanometer cuff of Example 1, and shows a state in which the wrist is in contact with the side surface of the return portion. FIG. 4B is an explanatory diagram illustrating the operation of the wrist-worn sphygmomanometer cuff of Example 1, and shows a state in which the opening is widened.

The wrist-worn sphygmomanometer cuff 20 of Example 1 is housed in a cover body 21 that is wound around the measured portion (wrist M) and is an elastic body that curves along the measured portion (wrist M). The core 30 is provided. The core 30 is a core main body 31 having a C-shaped cross section having an opening formed by cutting out a part of a substantially cylindrical shape, and the core main body 31 is outside the core main body 31 from the end portion 35a of the core main body 31. A return portion 36a extending in a direction away from the vertical plane P2 of the plane P1 connecting the ends is provided (FIG. 3).

When the wrist-mounted sphygmomanometer cuff 20 is attached to the wrist M, as shown in FIG. 4A, the person to be measured holds the device body 10 by hand and opens the opening 51 of the wrist-mounted sphygmomanometer cuff 20. Move toward the wrist M of the person to be measured. Here, the opening 51 of the wrist-worn sphygmomanometer cuff 20 takes into consideration the thickness of the cover body 21 with respect to the opening 50 of the core main body 31, and has a correlation with the opening 50.

When the wrist-worn sphygmomanometer cuff 20 approaches the wrist M, the wrist M hits the side surface 37a of the return portion 36a via the cover body 21. When the wrist-mounted sphygmomanometer 1 is moved in a direction approaching the wrist M while the wrist M is in contact with the side surface 37a of the return portion 36a via the cover body 21, the side surface 37a is pushed by the wrist M.

When the side surface 37a is pushed by the wrist M, as shown in FIG. 4B, the shape of the core main body 31 is deformed, the opening 51 becomes an opening length Ha longer than the opening length H, and the opening 51 expands. When the wrist-mounted sphygmomanometer 1 is further moved toward the wrist M with the opening 51 widened, the wrist M passes through the opening 51, and the wrist-mounted sphygmomanometer cuff 20 is attached to the wrist M. To.

That is, when the wrist-mounted blood pressure monitor 1 is attached to the wrist M, the wrist M can be pressed against the side surface 37a of the return portion 36a to deform the core 30 in the direction in which the opening 50 of the core body 31 opens. Therefore, it is possible to improve the wearability of the wrist-mounted blood pressure monitor cuff 20 to the wrist M.

If the opening 50 is enlarged without providing the narrowed portions 34a and 34b, the holding force of the core body 31 to hold the wrist M is reduced, and the space between the wrist-mounted blood pressure monitor cuff 20 and the wrist M is reduced. There is a problem that a gap is created in the blood pressure. On the other hand, if the narrowed portions 34a and 34b are provided, the opening 50 becomes narrow and the narrowed portions 34a and 34b hit the wrist M when the wrist M is inserted inside the wrist-worn sphygmomanometer cuff 20. There's a problem. On the other hand, in the wrist-worn sphygmomanometer 1 of the first embodiment, the wrist M is pressed against the side surface 37a of the return portion 36a and the opening 51 is provided by providing the narrowed portions 34a and 34b and further providing the return portion 36a. Can be expanded. Therefore, the wrist M can be easily inserted into the wrist-worn sphygmomanometer cuff 20.

First, the configuration of the wrist-worn sphygmomanometer cuff in Example 2 will be described.
FIG. 5A is an explanatory diagram illustrating the configuration and operation of the wrist-worn sphygmomanometer cuff according to the second embodiment, and shows a state in which the wrist is in contact with the side surface of the return portion. FIG. 5B is an explanatory diagram illustrating the operation of the wrist-worn sphygmomanometer cuff of Example 2, and shows a state in which the opening is widened. The same or equivalent parts as those described in Example 1 will be described using the same terms or the same reference numerals.

The wrist-worn sphygmomanometer cuff 120 of Example 2 is different from the wrist-worn sphygmomanometer cuff 20 of Example 1 in that the configuration of the return portion of the core is different.

[Structure of core return part]
Also in the second embodiment, as shown in FIG. 5A, the core 130 includes a second return portion 138a formed by bending from the tip of the return portion 36a in a direction approaching the core main body 131. The side surface 37a of the return portion 36a and the side surface 139a of the second return portion 138a are connected by a smooth curved surface.

Next, the operation of the wrist-worn sphygmomanometer cuff 120 of Example 2 will be described.
The wrist-worn sphygmomanometer cuff 120 of Example 2 includes a second return portion 138a formed by bending the core 30 from the tip of the return portion 36a in a direction approaching the core main body 31 (FIG. 5A).

When the wrist-mounted sphygmomanometer cuff 120 is attached to the wrist M, as shown in FIG. 5A, the person to be measured holds the device body 10 by hand and opens the opening 51 of the wrist-mounted sphygmomanometer cuff 120. Move toward the wrist M of the person to be measured. When the wrist-worn sphygmomanometer cuff 120 approaches the wrist M, the wrist M hits the side surface 37a of the return portion 36a via the cover body 21.

At this time, since the second return portion 138a is formed at the tip of the return portion 36a, it is possible to prevent the tip of the return portion 36a from hitting the wrist M.

When the wrist-mounted sphygmomanometer 101 is moved in a direction approaching the wrist M while the wrist M is in contact with the side surface 37a of the return portion 36a via the cover body 21, the side surface 37a is pushed by the wrist M. When the side surface 37a is pushed by the wrist M, as shown in FIG. 5B, the shape of the core main body 31 is deformed, the opening 51 becomes an opening length Ha longer than the opening length H, and the opening 51 expands.

When the wrist-mounted sphygmomanometer 101 is further moved toward the wrist M with the opening 51 widened, the wrist M passes through the opening 51, and the wrist-mounted sphygmomanometer cuff 120 is attached to the wrist M. To.

That is, when the wrist-mounted blood pressure monitor cuff 120 is attached to the wrist M, the wrist M can be reliably applied to the side surface 37a of the return portion 36a. Therefore, the wearability of the wrist-worn sphygmomanometer cuff 120 to the wrist M can be further improved. The same or equivalent parts as those described in Example 1 will be described using the same terms or the same reference numerals.

First, the configuration of the wrist-worn sphygmomanometer cuff in Example 3 will be described.
FIG. 6A is an explanatory diagram illustrating the configuration and operation of the wrist-worn sphygmomanometer cuff according to the third embodiment, showing a state in which the wrist is in contact with the side surface of the return portion. FIG. 6B is an explanatory diagram illustrating the operation of the wrist-worn sphygmomanometer cuff according to the third embodiment, and shows a state in which the opening is widened. The same or equivalent parts as those described in Example 1 will be described using the same terms or the same reference numerals.

The wrist-worn sphygmomanometer cuff 220 of Example 3 is different from the wrist-worn sphygmomanometer cuff 20 of Example 1 in that the configuration of the return portion of the core is different.

[Structure of core return part]
As shown in FIG. 6A, the distance from the bottom 32 of the core body 231 to the end 235a on the side where the device body 10 of the core body 231 is attached is from the bottom 32 of the core body 231 to the device body 10 of the core body 231. Is formed longer than the distance to the end 235b on the side opposite to the side to which is attached. That is, the end portion 235a on the side of the core main body 231 on which the device main body 10 is attached is provided so as to project from the end portion 235b on the side opposite to the side on which the device main body 10 of the core main body 231 is attached.

It extends from the end portion 235a of the core main body 231 in a direction away from the vertical surface P2 of the plane P1 which is outside the core main body 231 and connects the ends 235a and 235b of the core main body 231. In other words, from the end portion 235a of the core main body 231 to the outside of the outer peripheral surface of the core main body 231, the return portion 36a is formed so as to project in the direction in which the opening 50 widens.

It should be noted that the end portion 235b on the side of the core main body 231 opposite to the side on which the device main body 10 is attached may be provided so as to protrude from the end portion 235a on the side on which the apparatus main body 10 of the core main body 231 is attached. In this case, a return portion is formed so as to project from the end portion 235b of the core main body 231 in the direction in which the opening 50 expands on the outside of the outer peripheral surface of the core main body 231.

Next, the operation of the wrist-worn sphygmomanometer cuff 220 of Example 3 will be described.
In the wrist-worn sphygmomanometer cuff 220 of Example 3, one end 235a of the core body 31 is provided so as to protrude from the other end 235b of the core body, and the return portion 36a is provided at least so as to protrude. It is provided at one end 235a of the core body 31 (FIG. 6A).

When the wrist-mounted sphygmomanometer cuff 220 is attached to the wrist M, as shown in FIG. 6A, the person to be measured holds the device body 10 by hand and opens the opening 51 of the wrist-mounted sphygmomanometer cuff 220. Move toward the wrist M of the person to be measured. When the wrist-worn sphygmomanometer cuff 220 approaches the wrist M, the wrist M hits the side surface 37a of the return portion 36a via the cover body 21.

At this time, the return portion 36a is an insertion locus of the wrist M into the wrist-worn sphygmomanometer cuff 220, and is on the front side of the end portion 236b of the core main body 231. Therefore, the side surface 37a of the return portion 36a can be first applied to the wrist M by the insertion locus of the wrist M into the wrist-worn sphygmomanometer cuff 220.

When the wrist-mounted sphygmomanometer 201 is moved in a direction approaching the wrist M while the wrist M is in contact with the side surface 37a of the return portion 36a via the cover body 21, the side surface 37a is pushed by the wrist M. When the side surface 37a is pushed by the wrist M, as shown in FIG. 6B, the shape of the core main body 231 is deformed, the opening 51 becomes an opening length Ha longer than the opening length H, and the opening 51 expands.

When the wrist-mounted sphygmomanometer 201 is further moved toward the wrist M with the opening 51 widened, the wrist M passes through the opening 50, and the wrist-mounted sphygmomanometer cuff 220 is attached to the wrist M. To.

That is, in the locus of attaching the wrist-mounted blood pressure monitor cuff 220 to the wrist M, the wrist M can be first applied to the side surface 37a of the return portion 36a provided at one end portion 235a. Therefore, the wearability of the wrist-mounted blood pressure monitor cuff 220 to the wrist M can be further improved. The same or equivalent parts as those described in Example 1 will be described using the same terms or the same reference numerals.

First, the configuration of the wrist-worn sphygmomanometer cuff in Example 4 will be described.
FIG. 7A is an explanatory diagram illustrating the configuration and operation of the wrist-worn sphygmomanometer cuff according to the fourth embodiment, showing a state in which the wrist is in contact with the side surface of the return portion. FIG. 7B is an explanatory diagram illustrating the operation of the wrist-worn sphygmomanometer cuff of Example 4, and shows a state in which the opening is widened. The same or equivalent parts as those described in Example 1 will be described using the same terms or the same reference numerals.

The wrist-worn sphygmomanometer cuff 320 of Example 4 is different from the wrist-worn sphygmomanometer cuff 20 of Example 1 in that the configuration of the return portion of the core is different.

[Structure of core return part]
As shown in FIG. 7A, the return portions 36a and 236a of the core 330 of the fourth embodiment are the end portions of the core main body 31 on the outside of the outer peripheral surface of the core main body 31 from both the end portions 35a and 35b of the core main body 31. It extends in a direction away from the vertical plane P2 of the plane P1 connecting 35a and 35b. In other words, the return portions 36a and 236a are formed so as to project from both the end portions 35a and 35b forming the C-shaped cross section on the outside of the outer peripheral surface of the core main body 31 in the direction in which the opening 50 expands.

Next, the operation of the wrist-worn sphygmomanometer cuff 320 of Example 4 will be described.
When the wrist-mounted sphygmomanometer cuff 320 is attached to the wrist M, as shown in FIG. 7A, the person to be measured holds the device body 10 by hand and opens the opening 51 of the wrist-mounted sphygmomanometer cuff 320. It is moved toward the wrist M, which is the measurement site of the person to be measured.

When the wrist-worn sphygmomanometer cuff 320 approaches the wrist M, the wrist M hits at least one of the side surface 37a of the return portion 36a and the side surface 337b of the return portion 336b via the cover body 21. The wrist-mounted sphygmomanometer 1 is moved toward the wrist M in a state where the wrist M is in contact with at least one of the side surface 37a of the return portion 36a and the side surface 337b of the return portion 336b via the cover body 21. Then, the side surfaces 37a and 337b that the wrist M hits are pushed by the wrist M.

When the side surfaces 37a and 337b are pushed by the wrist M, as shown in FIG. 7B, the shape of the core main body 231 is deformed, the opening 51 becomes an opening length Ha longer than the opening length H, and the opening 51 expands. When the wrist-mounted sphygmomanometer 301 is further moved toward the wrist M with the opening 51 widened, the wrist M passes through the opening 50, and the wrist-mounted sphygmomanometer cuff 220 is attached to the wrist M. To.

That is, when the wrist-mounted blood pressure monitor cuff 320 is attached to the wrist M, the wrist M is pressed against the side surfaces 37a, 237a of at least one of the return portions 36a, 236a, and the core is opened in the direction in which the opening of the core is opened. It can be transformed. Therefore, the wearability of the wrist-worn sphygmomanometer cuff 320 to the wrist M can be further improved. The same or equivalent parts as those described in Example 1 will be described using the same terms or the same reference numerals.

The cuff for a sphygmomanometer of the present invention has been described above based on Examples 1 to 4. However, the specific configuration is not limited to these examples, and as long as the gist of the invention according to each claim is not deviated from the claims, the examples are combined, and the design is changed or added. Is acceptable.

In Example 2, an example in which the second return portion 138a is provided at the tip of the return portion 36a is shown. However, the second return portion can be applied to the return portion 36a of the third embodiment or can be applied to the return portions 336a and 336b of the fourth embodiment.

In the second embodiment, an example is shown in which the return portions 36a and 236a are provided on both of the end portions 35a and 35b forming a C-shaped cross section. However, even when one end of the core body is provided so as to project from the other end of the core body as in the third embodiment, it is possible to provide a barb at both ends of the core body. can.

In Example 1, an example of applying the present invention to a wrist-worn sphygmomanometer cuff was shown. However, the present invention can be applied to a sphygmomanometer cuff that measures a substantially columnar biological part such as the upper arm.

1 Wrist-worn sphygmomanometer (an example of sphygmomanometer)
20 Wrist-worn sphygmomanometer cuff (an example of sphygmomanometer cuff)
21 Cover body 30 Core 31 Core body 36a Return part 50 Opening 139a Second return part M Wrist as a measurement site P1 Plane P2 Vertical surface

Claims (4)

It is housed in a cover body that is wound around the measurement site and has an elastic core that curves along the measurement site.
The core is
A core body with a C-shaped cross section having an opening formed by cutting out a part of a substantially cylindrical shape,
A return portion extending from the C-shaped end portion of the core body in a direction away from the vertical plane of the plane connecting the ends of the core body, which is outside the core body. A cuff for a sphygmomanometer characterized by being prepared. The cuff for a sphygmomanometer according to claim 1, wherein the core includes a second return portion formed by bending from the tip of the return portion in a direction approaching the core body. One end of the core body is provided so as to project from the other end of the core body.
The cuff for a sphygmomanometer according to claim 1 or 2, wherein the return portion is provided at least at one end of the core body provided so as to project. The cuff for a sphygmomanometer according to any one of claims 1 to 3, wherein the return portion is provided at both ends of the core body.

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