JPH05163Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention is equipped with a tip valve for exhausting air at one end of a pressurizing ball that pressurizes air into the cuff, and a tail valve for intake air at the other end. The present invention relates to a supply/exhaust device for a blood pressure monitor.

BACKGROUND TECHNOLOGY In general, a blood pressure monitor is equipped with a pressurizing bulb for pressurizing air into the cuff, and this pressurizing bulb has an exhaust valve at one end for rapidly discharging the air inside the cuff. An intake valve for sucking air into the pressure bulb is fitted onto the other end (see Japanese Utility Model Publication No. 58-28567).

Problems to be Solved by the Invention Incidentally, in the structure as described above, the exhaust valve and the intake valve are simply fitted into the pressure ball, so deformation due to the operation of the pressure ball is avoided. There is a disadvantage that the exhaust valve and the intake valve gradually fall out due to repetition, which causes these valves to often fall out, resulting in the inconvenience that the blood pressure monitor becomes unusable.

For this reason, some conventional models have check rings fitted into the exhaust and intake valves to prevent them from coming off (see Japanese Patent Application Laid-Open No. 131427/1983), but this also prevents pressurization. The reality is that the effect of preventing the valve from falling off due to deformation of the ball cannot be sufficiently achieved.

In addition, air is forced into the pressure bulb of a blood pressure monitor until blood circulation stops in the cuff, and then it is rapidly evacuated to a pressure that does not interfere with blood pressure measurement. Since the valve is installed in the middle of the air pipe that connects the pressure bulb and the cuff, it is not possible to quickly exhaust the air with the operator's hand intact after injecting pressurized air with the pressure bulb. Not only was it very inconvenient to operate, but it also had the problem of not being able to measure blood pressure quickly.

In view of these problems with conventional ones, the present invention prevents the tip valve (exhaust valve) and tail valve (intake valve) from falling off due to repeated deformation caused by the operation of the pressurizing ball. In addition, one end and the other end of the pressure ball are made into thick-walled parts to increase the self-reliance of the pressure ball, and the pressure ball is equipped with a push button that can be operated approximately along the axial direction of the pressure ball. An object of the present invention is to provide a supply/exhaust device for a blood pressure monitor that allows rapid exhaustion to be performed easily and accurately by pressing a pushbutton with the operator's hand that has injected air with a pressure bulb. It is.

Means for Solving the Problems The present invention has the following technical means for achieving its purpose.

That is, the supply/exhaust device for a blood pressure monitor according to the present invention is equipped with a tip valve for exhausting air at one end of a pressurizing ball that pressurizes air into the cuff, and a tail valve for intake air at the other end. One end and the other end of the pressure ball are each made into a thick part to form a thread, a tip valve is screwed to one end of the pressure ball, a tail valve is screwed to the other end, and the tip valve is screwed with a thread. The device is characterized in that it includes a push button that is operated approximately along the axial direction of the pressure ball.

How it works When measuring blood pressure, air is forced into the cuff by operating the pressure bulb. That is, when the pressure ball is pressed, the air inside it is pushed out in the direction of the cuff, and when the pressure ball restores itself and inflates, outside air is sucked in through the butt valve. When rapidly discharging the air in the cuff, press the push button on the tip valve with your thumb while keeping the hand operating the pressurizing bulb open to open the tip valve and let it blow out using air pressure. In this case, the pressurizing ball has thick parts at one end and the other end and is highly self-supporting, so that the push button can be pressed easily and accurately.

The tip valve and tail valve are respectively screwed to one end and the other end of the pressure ball, and one end and the other end of the pressure ball are thick-walled parts, and threads are formed in those parts. Therefore, even if the pressure ball is manipulated and the tip and butt valves are screwed in, the threaded portions of the tip and butt valves will not deform, and the screws will not deform. There is no risk of the tip valve and butt valve falling off because they are screwed onto the valve.

Example An embodiment of the present invention will be described with reference to the drawings.

In Fig. 1, 1 is the blood pressure monitor body, 2 is the arm cuff,
Reference numeral 3 denotes a pressure ball, and the blood pressure monitor main body 1 and the cuff 2 are connected by a rubber tube 4, and the pressure ball 3 and the cuff 2 are connected by a rubber tube 5. The pressure ball 3 is made of thermoplastic elastomer such as soft polyvinyl chloride, rubber, etc.
As shown in FIGS. 2 to 4, a tip valve 6 is attached to one end of the pressure ball 3, and a tail valve 7 is attached to the other end. That is, the pressurizing ball 3 has thick parts at one end and the other end, and threads 8 and 9 are formed on the outer peripheral surface of the thick part. Then, the tip valve 6 is screwed onto the thread 8 of the thick part at one end.
A butt valve 7 is screwed onto a thread 9 on the thick wall portion at the other end.

The tip valve 6 has a push button 10, which is pushed up by a spring 11, and the support portion of the spring 11 is an annular projection 12 that bulges inward. Therefore, one end of the pressure ball 3 is also reinforced by this annular projection 12. Further, the tip portion 12a of the annular protrusion 12 protrudes outward in a cylindrical shape and the spring 11 is inserted therein, and prevents the spring 11 from moving laterally and falling off. This further enhances the reinforcing effect of 12. The push button 10 of the tip valve 6 is configured to be operated approximately along the axial direction of the pressure ball 3, so the push button 10 is pressed with the thumb of the operating hand that presses air with the pressure ball 3. Rapid exhaust can be performed easily and accurately just by operating it. 13 is the push button 10 and the valve seat 14
This is an O-ring fitted between the 15 is a pressurized air outlet, and this outlet 15 is a connection port for the rubber tube 5 connected to the cuff 2. 16 is an exhaust gap. Further, the butt valve 7 has a sphere 17 installed therein, and this sphere 17 corresponds to the intake hole 18 and functions to close the valve when pressurized.
19 is a net that partitions the chamber of the sphere 17 and the inside of the pressurizing sphere 3.

When the pressurizing ball 3 configured as described above is pressed, internal air is forced into the cuff 2 through the rubber tube 5 from the pressurized air outlet 15. At this time, the butt valve 7 is closed, and when the pressurizing ball 3 is restored, the butt valve 7 is opened and outside air is sucked in. In addition, if the pressurized air in the cuff 2 is to be rapidly discharged, the push button 10 of the front valve 6 is pressed, and the valve opens only during that time, and the air inside is discharged from the exhaust gap 18.

When air is forced into the cuff 2 by operating the pressure ball 3, it deforms repeatedly, but one end and the other end of the pressure ball 3 are thick parts, and the screws formed in those parts deform. Articles 8 and 9 have a leading valve 6 and a tail valve 7.
Since they are each screwed on, there is no risk of them falling out.

Effects of the invention The present invention can prevent the tip valve (exhaust valve) and tail valve (intake valve) from falling off due to repeated deformation due to the operation of the pressurizing ball, and also One end and the other end of the ball are thickened to increase its self-reliance, and a push button that operates approximately along the axial direction of the pressure ball allows the pressure ball to release air. This has the effect that rapid exhaust can be performed easily and accurately by pressing the push button with the same operating hand that was used for press-fitting.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is an overall perspective view of a blood pressure monitor, Fig. 2 is a sectional view of a pressure bulb, and Fig. 3 is a cross-sectional view of a pressure bulb.
The figure and FIG. 4 are sectional views of a part thereof. 1... Sphygmomanometer body, 2... Bracelet, 3... Pressure bulb, 4, 5... Rubber tube, 6... Tip valve, 7... Butt valve, 8, 9... Screw, 10... ...Push button,
11... Spring, 12... Annular projection, 13...
...O-ring, 14... Valve seat, 15... Pressurized air outlet, 16... Exhaust gap, 17... Sphere, 18...
...Intake hole, 19...Network.

Claims (1)

[Scope of utility model registration request] One end of the pressure ball that presses air into the cuff is equipped with a tip valve for exhaust, and the other end is equipped with a tail valve for intake. A thread is formed as the flesh part, and a tip valve is screwed to one end of the pressure ball and a butt valve is screwed to the other end.
A supply/exhaust device for a blood pressure monitor, characterized in that the tip valve is provided with a push button operated substantially along the axial direction of the pressurizing bulb.