JPS632013Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a simple portable blood pressure monitor that is worn on the wrist. Specifically, it applies spot pressure directly to the artery in the wrist to catch the scraping sound (Korotkoff sound) of blood flow. This is related to a blood pressure monitor like this.

Traditionally, commonly used blood pressure monitors include:
Separately equipped with a cuff that wraps around the upper arm to provide restraint, an air balloon that inflates the cuff, a mercury column (or an aneroid manometer) connected to the cuff, and a stethoscope that captures friction sounds. It is to be used as a set. For this reason, the blood pressure monitor set is large and bulky, making it unsuitable for portable use. Of course, handling this blood pressure monitor is troublesome and requires skill, making it particularly difficult to use as a single-use blood pressure monitor. In other words, it is difficult for a person to wrap a wide cuff around his or her arm by himself, and it is also difficult for an ordinary person to place a stethoscope at a specific brachial artery (of course, one-handed auscultation is difficult). (This also makes it difficult to handle the utensils.) Furthermore, since the cuff, air balloon, and mercury column are connected through a rubber tube, if you are not used to it, you may mistake the sound caused by the vibration of the rubber tube as the scraping sound of blood flow. This phenomenon causes instability in one hand (one person)
This is especially likely to occur when using Therefore,
Generally, good results cannot be obtained unless a trained third party (such as a doctor) performs the procedure.

In view of the above-mentioned circumstances, this invention aims to provide a compact blood pressure monitor that can be easily operated by one person, making it possible to easily measure blood pressure not only when traveling, but also at home. The present invention was completed by focusing on the following.

That is, the present invention uses a watchband-like wrist strap that can be easily handled by one person as a means for binding the artery.
An artery pressing shaft that directly presses the artery in the wrist is disposed on the wrist cuff, and a scraping sound microphone is provided near the artery pressing shaft to obtain blood pressure measurement with less error.

Hereinafter, the present invention will be described with reference to the drawings of embodiments.

1 is a hard fitting part 2 having a clock-like case shape 2a facing the wrist artery position (commonly known as the vein);
This is a watchband-like wrist strap with band bodies 3 attached to both sides of the hard covering part 2, and an artery pressing shaft body having a threaded hole type bearing part 4 formed in the hard covering part 2 and a slot 5 at the top. 6 are screwed together orthogonally, and the compressor 7 at the lower end of the artery pressing shaft 6 can be extended to an appropriate length from the lower surface of the hard covering part 2 in proportion to the degree of screw insertion. Reference numeral 8 denotes a drive gear provided on the shaft portion 6a of the artery pressing shaft body 6, and the drive gear 8 connects the operating shaft 10 of the manometer 9, which is disposed upright on one side of the hard fitting portion 2, to the transmission gear 1.
1, 11, and 12. The structure of this manometer 9 is such that a well-known aneroid manometer has a structure in which an air chamber (not shown) that changes depending on the atmospheric pressure is removed, and a shaft section that operates in conjunction with this air hole is connected to the transmission gear 12. The actuating shaft 10 has the following structure. 1
Reference numeral 3 denotes a scraping sound catching microphone buried in the vicinity of the compressor 7 of the hard fitting part 2. The microphone 13 is led to an earphone 15 which can be freely inserted through a jack 14, and has the shape of a watch band as a whole. This becomes a portable blood pressure monitor 16. 1
7 is an amplifier for the microphone 13, and 18 is a battery thereof.

To explain this effect, first, when using the blood pressure monitor 16, first place the hard fitting part 2 of the watchband-like wrist restraint 1 on the artery position A (pulse point) of the wrist where you would normally place your finger when taking your pulse. The compressor 7 of the artery pressing shaft 6, which is slightly exposed on the lower surface of the hard abutting part 2, is positioned and brought into contact with it. In this state, the band main body 3 parts connected to both sides of the hard fitting part 2 are wrapped around the wrist to tighten the band. In this case, the band main body 3 can be easily locked by simply matching the velvet fasteners 19, 19' attached to the opposing end surfaces, depending on the wrist diameter of each person. Also, the plug 1 of the earphone 15 is attached to the jack 14 facing the edge of the hard fitting part 2.
5' is inserted.

Here, if the top part of the artery pressing shaft 6 protrudingly provided on the hard fitting part 2 is turned, for example, to the right, the artery pressing shaft 6 will be moved to the feed screw part 6b formed on the shaft part 6a. As the compressor 7 at the lower end, which is integrated with the shaft portion 6a, is pushed downward by the action, the compressor 7 at the lower end, which is integrated with the shaft portion 6a, is extended downward by an appropriate length from the lower surface of the hard fitting portion 2, and compresses the arteries in the wrist in spots. This causes the blood flow in the pulse to stop. This state is known through the earphone 15. On the other hand, at this time, the transmission gears 11, 11, 12 meshed with the drive gear 8 integrated with the shaft portion 6a of the artery pressing shaft 6 also rotate, and the operating shaft 10 on the manometer 9 side to which the transmission gear 12 is attached also moves in conjunction. It is rotated. The ring portion 10a of the operating shaft 10 moves a swingable sector 20 whose center is pivoted, and a pointer 22 integrally arranged with a pinion 21 meshing with a fan-shaped gear portion 20a of the sector 20 is connected to a scale plate 23. It will be a transition from above.
In this state (stopped blood flow), the artery pressing shaft 6
If you move the compressor 7 in the opposite direction and move the compressor 7 back a little, blood will start flowing again and you will hear a scraping sound (Korotkoff sound).
begins to be heard. At this time, if the scale indicated by the pointer 22 is read, it is the systolic blood pressure (systolic pressure).

Next, if the artery pressing shaft 6 is further rotated in the reverse direction to gradually relieve the pressure on the artery, this scraping sound will suddenly become smaller and disappear at a certain position. At this time, if you read the scale indicated by the pointer 22 again,
This becomes the lowest blood pressure (diastolic pressure). Of course, these scraping sounds are caught by the microphone 13 located near the compressor 7 and are heard through the earphones 15.

Incidentally, the scale structure of the scale plate 23 is scaled to a value corresponding to a measured value with a commonly used mercury column type blood pressure monitor. It goes without saying that the number of teeth of the pinion 21, the sector 20, the transmission gears 11, 11, 12, the drive gear 8, and the pitch of the feed screw portion 6b are also appropriately selected and designed to have the above-mentioned values. 24 in the diagram
is a return spring attached to the shaft of the pointer 22.

As mentioned above, the blood pressure monitor of the present invention has a watchband body that wraps the cuff around the wrist, and the hard fitting part is equipped with an artery pressing shaft body that directly presses the artery, a microphone that catches friction noise, and an artery pressing shaft body. The structure is equipped with a manometer that is linked to the feeding of the unit, resulting in an overall compact unit configuration. Therefore, it is extremely convenient to carry. Moreover, when in use, the wrist bandage can be worn with the hard applicator positioned on the artery, much like a watch band, and can be easily handled with one hand.
In other words, it is easy for one person (oneself) to install it.
Moreover, this handling operation is as simple as simply rotating the artery pressing shaft, and does not require any skill, and the artery pressing shaft directly compresses the artery in spots to control the flow of blood. Because of the method, it is different from indirect restraint means such as cuff type, so accurate values can be obtained despite the compact structure. Furthermore, the present invention has practical effects such as using an earphone type device that directly detects the friction sound through the auditory sense, such as a measurement sensation equivalent to that of using a conventional stethoscope. In addition, although this manometer part is arranged at the edge of the hard fitting part which is the longitudinal direction of the band body in the embodiment diagram, it may be constructed so as to extend in the lateral direction (arm direction) which is the orthogonal direction. or,
If necessary, the entire ring of the wrist restraint may be made of a hard member, such as a bracelet (however, in this case, an adjustment means should be provided to adjust the amount of extension of the artery pressing shaft body to suit the large or small diameter of the wrist. (Of course, it is necessary to configure the system to deal with such problems).

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view, FIG. 2 is a front view showing the artery pressing shaft body,
FIG. 3 is a perspective view showing the main parts of the manometer section, FIG. 4 is a back view of the hard fitting section, and FIG. 5 is a perspective view of the manometer in use. 1... Watch band-like wrist strap, 2... Hard fitting part, 5... Photography, 6... Arterial pressing shaft, 7...
...Compressor, 8...Drive gear, 9...Manometer, 10...Operating shaft, 13...Microphone, 1
5...Earphones.

Claims (1)

[Scope of utility model registration request] A case shape 2 is placed in the middle of a watch band-like band body 3.
Wrist strap 1 is connected by connecting the hard fitting part 2 exhibiting a.
The artery pressing shaft 6 having a threaded part 6b for screw insertion is inserted orthogonally into this hard fitting part 2, and the upper end of the artery pressing shaft 6 is taken as 5, and the compressor 7 at the lower end is applied to the hard fitting part 2. The operating shaft 10 of the manometer 9, which can freely protrude from the lower surface of the section 2, has a scraping sound microphone 13 embedded near the delivery hole of the compressor 7, and is installed on one side of the hard fitting section 2, is connected to the artery pressing shaft. The microphone 1 is connected to the drive gear 8 provided in the microphone 1 through an appropriate transmission means.
A portable blood pressure monitor with earphones 15 connected to 3.