JPH0143043Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Field of the invention This invention relates to a blood pressure monitor that utilizes the Rybarotchi and Korotkoff methods, and in particular relates to the structure of an air connector that connects the body of the blood pressure monitor and the cuff.

(b) Prior art and its problems Blood pressure monitors that measure blood pressure using the Rybarotsch and Korotkoff method use a cuff that is wrapped around the upper arm to pressurize the air bladder in the cuff, and then is slowly evacuated to lower the pressure. At the same time, blood pressure has come to be measured based on the appearance and disappearance of Korotkoff sounds.

In this sphygmomanometer, the sphygmomanometer body has a built-in air system equipped with a pressure gauge for measuring the pressure of the air bag, an exhaust valve for slowly evacuation, etc., and this air system and the wrist cuff are connected by an air connector. It is connected.

On the other hand, this pressure gauge is subject to the measurement method, and air leakage must be less than 4 mmHg / 3 minutes.
Each item is tested at a metrology testing laboratory.

Therefore, after the blood pressure monitor is assembled, it is to be tested at this testing laboratory, and the test air system is connected to the air system on the blood pressure monitor body side. At that time, pressurized air needs to be supplied only to the pressure gauge, so conventionally the exhaust valve was plugged or the air pipe of the exhaust valve system was shut off with a clip.

However, this requires work such as removing the cover of the blood pressure monitor body, and also requires reassembly after verification, which increases the number of assembly steps and makes the assembly work complicated. In addition, various blood pressure monitors have a rapid exhaust valve, microphone, and
In some cases, an air pump or the like is provided, and the same treatment as described above must be applied to each of these systems at the time of verification, which poses the problem of requiring a lot of effort.

(c) Purpose of the invention This invention is a blood pressure sensor that opens only the air passage of the pressure gauge in the air connector with an auxiliary plug during verification, thereby making it possible to omit disassembly and reassembly, thereby reducing the number of assembly steps. The purpose is to provide a

(d) Structure and effect of the invention In order to achieve the above object, this invention provides an air connector between the body of the blood pressure monitor equipped with pressure measuring means and the cuff, and this air connector is connected to the body of the blood pressure monitor. an air plug connected to the arm cuff and detachable from the air socket; and an auxiliary plug detachable from the air socket, with a plug insertion hole 1 in the air socket.
and at least a first exhaust hole opening in the insertion hole.
an air passage for communicating with the pressure measuring means, and a second air passage for communicating with the pressure measuring means, and the second air passage is connected to the pressure measuring means, while the air plug is inserted into the insertion hole of the air socket. In the worn state, an air supply passage for communicating the arm cuff with the first and second air passages is formed across both ends, and an air supply passage is formed in the auxiliary plug at both ends. and a closing means for opening only one air passage in the air socket and closing the other air passages is provided at the tip so that the supply passage of the auxiliary plug and the pressure measuring means communicate with each other. It is composed of

Therefore, according to this invention, pressurized air can be supplied only to the pressure gauge by simply inserting the auxiliary plug into the air socket at the time of verification, so the blood pressure monitor body must be disassembled and reassembled for this verification. This is not necessary, and the number of assembly steps can be reduced, as well as the labor required.

(E) Description of Embodiment Hereinafter, one embodiment of this invention will be described in detail based on the drawings.

As shown in FIGS. 1 and 2, 1 is a sphygmomanometer that measures blood pressure using the Rybarotchi and Korotkoff methods, and is connected to a sphygmomanometer main body 2 equipped with a blood pressure display means, a pressure gauge, etc. via an air connector 3. A cuff (not shown) is connected thereto.

This air connector 3 is composed of an air socket 4, an air plug 5 (see FIG. 2), and an auxiliary plug 6.

The air socket 4 is attached to the main body 2,
The air system of the main body 2 is connected. This air socket 4 is formed into a substantially cylindrical shape with an open outer end surface, and has a large diameter portion 7 and a tapered portion 8 from this outer end.
and a small diameter portion 9 are formed in order to form a plug insertion hole 10.
is formed. The large diameter portion 7 is formed with a flange-like projection 11 that engages with each of the plugs 5 and 6, and the tape portion 8 is formed in a smaller diameter as it goes deeper.

Furthermore, the air socket 4 is equipped with a pressure gauge (not shown).
Two air passages 12 and 13 are formed which communicate with the exhaust valve and a slow exhaust valve (not shown). The pressure gauge air passage 12 is arranged on the circumferential surface of the small diameter portion 9, and the exhaust valve air passage 13
are open at the end faces of the small diameter portion 9, respectively. still,
This pressure gauge measures the pressure inside the air bag of the cuff, and the slow exhaust valve gradually exhausts the pressurized air from this air bag, reducing the pressure and preventing Korotkoff sounds from occurring or disappearing. and measure blood pressure.

The auxiliary plug 6 is used to connect the pressure gauge to the air system of the weighing laboratory when verifying the pressure gauge,
It is shaped like a short cylinder. This auxiliary plug 6 has one air supply passage 14 extending from the distal end to the proximal end.
is formed, and a tapered part 16 is formed on the outer circumferential surface of the central body part 15 via a step on the distal side, and this tapered part 1
Small diameter portions 17 are sequentially formed from step 6 through steps. This tapered portion 16 is tapered to match the tapered portion 8 of the air socket 4, and a projection 18 is formed in the shape of a flange at the large diameter end of the tapered portion 16, and this projection 18 is adapted to fit into the taper portion 8 of the air socket 4. The auxiliary plug 6 can be freely attached to and detached from the air socket 4 by engaging with and disengaging from the protrusion 11 of the air socket 4. Further, the small diameter portion 17 is formed to have a smaller diameter than the small diameter portion 9 of the air socket 4, and the supply passage 14 is opened in the circumferential surface of the small diameter portion 17.

Further, a closing rubber 19 (closing means) is attached to the distal end surface of the small diameter portion 17 of the auxiliary plug 6, so as to close the exhaust valve air passage 13 when installed.

The base end of the auxiliary plug 6 serves as a connection part 20 for an air pipe of the air system on the testing laboratory side, and a supply passage 14 is opened at the end surface.

On the other hand, the air plug 5 connects the air system of the main body 2 and the arm cuff, and is formed in a shape similar to that of the auxiliary plug 6 by omitting the small diameter portion 17. That is, the air plug 5 is formed into a short cylindrical shape, with an air passage 21 extending over both end surfaces, and a central body portion 22 on the outer peripheral surface.
The protrusion 23 and the tapered part 2 are connected to the tip end side via a step.
4 is formed, and a connecting portion 25 for the air pipe of the cuff is formed on the proximal end side. This tapered portion 24 matches the tapered portion 8 of the air socket 4, and the protrusion 23 engages with and disengages from the protrusion 11 of the air socket 4, so that the air plug 5 can be freely attached to and removed from the air socket 4.

Next, the connection operation of the air connector 3 will be explained.

First, when verifying the pressure gauge, use the air plug 5.
from the air socket 4, and insert the auxiliary plug 6 into the plug insertion hole 1 of the air socket 4 from its tip side.
Insert into 0. When the auxiliary plug 6 is completely inserted, the tapered portions 8 and 16 come into close contact, and the closing rubber 19 comes into contact with the end surface of the small diameter portion 9 in the plug insertion hole 10, thereby closing the exhaust valve air path 13. Thereafter, the auxiliary plug 6 is rotated to engage the protrusions 11 and 18 with the air socket 4 and hold it fixed.

As a result, the pressure gauge air passage 12 and the supply passage 1
4, and when air is supplied through the auxiliary plug 6 at the testing laboratory, pressurized air is supplied only to the pressure gauge.

When this verification is completed, the auxiliary plug 6 is rotated and removed from the air socket 4, the air plug 5 is inserted, and the protrusions 11 and 23 are rotated to engage with each other and attached to the air socket 4.

In this case, both air passages 12, 1 of the air socket 4
3 are both opened and communicated with the air passage 21 of the air plug 5, and the blood pressure monitor 1 is assembled as a product.

In this embodiment, the air socket 4 has two
Although two air passages 12 and 13 are formed, three or more air passages may be formed that communicate with a quick exhaust valve, an air pump, etc. In that case, the air passages other than the pressure gauge air passage 12 may be closed. The closure rubber 19 may be attached to the auxiliary plug 6.

Further, the closing means is not limited to the closing rubber 19.

Furthermore, screws may be formed in place of the protrusions 11, 18, 23 that fix the air socket 4 and the plugs 5, 6.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, and FIG. 1 is a central vertical cross-sectional view of the air connector showing the state in which the auxiliary plug is attached to the air socket, and FIG. 2 is a central vertical cross-sectional view of the air plug. 1... Sphygmomanometer, 2... Sphygmomanometer body, 3... Air connector, 4... Air socket, 5... Air plug, 6... Auxiliary plug, 7... Large diameter part, 8, 1
6, 24... Taper part, 9, 17... Small diameter part, 1
0... Plug insertion hole, 11, 18, 23... Protrusion, 14... Supply passage, 12, 13, 21... Air passage, 15, 22... Body, 19... Closing rubber,
20, 25... Connection section.

Claims (1)

[Scope of utility model registration request] An air connector is provided between the sphygmomanometer main body having a pressure measuring means and the cuff, and this air connector connects to an air socket attached to the main body and an air plug that communicates with the cuff and is detachable from the air socket. , an auxiliary plug detachably attached to the air socket, a plug insertion hole in the air socket, at least a first air passage for exhaust air opening in the insertion hole, and a second air passage for communicating with the pressure measuring means. is formed, and this second air passage is connected to the pressure measuring means, while the air plug is inserted into the insertion hole of the air socket, and the arm cuff and the first and second air passages are connected to the air plug. An air supply passage for communicating with the air socket is formed across both ends, and an air supply passage is formed in the auxiliary plug across both ends, and only the second air passage in the air socket is formed. A sphygmomanometer characterized in that a occluding means for opening the auxiliary plug and occluding other air passages is provided at the distal end, and the supply passage of the auxiliary plug communicates with the pressure measuring means.