KR20130092056A

KR20130092056A - Reasonable priced brake system with stable control to cuff at blood pressure monitor

Info

Publication number: KR20130092056A
Application number: KR1020120013520A
Authority: KR
Inventors: 송득영
Original assignee: 송득영
Priority date: 2012-02-10
Filing date: 2012-02-10
Publication date: 2013-08-20

Abstract

The present invention relates to a brake system of a drive motor for stable control of a cuff in a blood pressure monitor, and the encoder sensor 41 controls the rotation of the drive motor 28 to control tightening and loosening of the baffle 20. Is sensed and the drive motor 28 is stopped, the plunger 40 of the solenoid valve 42 is advanced to be caught by the latch 38 installed in the drive motor 28 to control the drive motor 28. As a result, the driving device is simple and economical because the space to be occupied is small.

Description

Reasonable priced brake system with stable control to cuff at blood pressure monitor

The present invention relates to a blood pressure meter, and more particularly to a brake system of a drive motor for the stable adjustment of the cuff in the blood pressure meter.

In general, the blood pressure of the human body is a measure of the pressure on the walls of blood vessels. Blood pressure is measured by a blood pressure monitor. The blood pressure meter is the most basic medical device for measuring blood pressure, which is the basis of the health index. Therefore, a general blood pressure measuring device is provided in a hospital, and is used for measuring blood pressure of an individual in a home or a sports center.

Blood pressure monitor is a device for measuring the systolic blood pressure and diastolic blood pressure of the arteries by wrapping the arm around the arm, pressurizing the arm by filling the air inside the arm, and slowly releasing the air. In such a blood pressure monitor, the arm is wound around the arm by the drive.

In the conventional blood pressure measuring device, the device for winding the armband is designed to wind or unwrap the armband through a belt. That is, the wand is fixed to one side and bent the other end while drawing a spiral curve, and then pulls the other side of the wand in the tangential direction to meet the arm. The belt is processed in the forward and reverse direction by the pulley rotating according to the rotation of the stationary motor While wrapping or loosening the band.

However, the conventional blood pressure measuring device configured as described above uses an expensive electromagnetic brake or a double armband. In the case of the electromagnetic brake, the unit price is very high compared to the efficiency, and in the case of the double armband, the blood pressure measurement value is inaccurate.

That is, the conventional blood pressure measuring device has a problem in that a large amount of space in the brake system enters expensive components and the product cost is high. The control circuit board, pneumatic line, pump, etc. should be installed inside the blood pressure monitor. The excessive size of the electromagnetic brake and the arm drive device makes the product coarse.

Accordingly, the present invention has been made to solve the above problems, and provides a brake system of a drive motor for stable adjustment of the arm in Patent No. 10-0373954 "Band drive of the blood pressure gauge".

The brake system of the drive motor according to the present invention includes a solenoid valve 42 having a drive motor 28 having a rear motor shaft 36 and a hanger 38 installed therein, an encoder sensor for detecting rotation of the motor, and a plunger 40. And a control circuit part for controlling the components, and a power supply part electrically connected to the control circuit part to supply power.

As described above, according to the present invention, in the low-cost brake system for stable adjustment of the arm in the blood pressure measuring device, when the encoder sensor 41 detects the rotation of the hanger 38 and stops, the plunger 40 of the solenoid valve 42 is stopped. Since it is moved forward and is caught by the latch 38 to prevent reverse rotation of the drive motor 28, the driving device may be simple and the space occupied by the driving device may be small. Therefore, the size of the case 10 may be small and economical benefits are obtained.

1 is a perspective view showing a blood pressure monitor coupled to a brake system according to the present invention;
FIG. 2 is a cross-sectional view of the arm cylinder of FIG. 1 cut radially;
3 is a plan view showing the longitudinal cylinder of Figure 1 cut in the longitudinal direction,
Figure 4 is a schematic plan view showing the interior of the blood pressure meter to which the brake system according to the present invention is applied,
5 is a graph showing a change in the pressure of the arm over time when measuring the blood pressure of the blood pressure monitor to which the present invention is applied.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are not drawn to scale and wherein like reference numerals in the various drawings refer to like elements.

As shown in Fig. 1, the blood pressure measuring device to which the low-cost brake system for stable adjustment of the arm according to the present invention is applied to the cover 12 on the upper side of the case 10 in which the control circuit part and the air access means are installed. ) Is covered and fixed, one side of the rear edge of the cover 12 is hinged to the monitor 14, which displays the blood pressure measurement, can be folded to the upper surface of the cover 12, the other edge of the rear of the cover 12 An arm rest 16 is installed on the side to comfortably support the underarm of the examinee, and a front arm cylinder 16 of the hollow is coupled to the arm rest 16 in front of the arm rest 16 to engage the arm. The cylinder 18 has a structure in which the arm 20 wound around the upper arm of the examinee is coupled.

As can be seen from Figure 3, the low-cost brake system for the stable adjustment of the arm in the blood pressure monitor according to the present invention, the rear motor shaft 36 and the hanger 38 to the drive motor 28 inside the case 10 Is installed, a solenoid valve 42 having a plunger 40 caught by the latch 38 is provided, and an encoder sensor 41 for detecting rotation of the latch 38 is provided. The drive motor 28 is a forward and reverse motor capable of forward and reverse rotation.

As can be seen from Figure 4, the low-cost brake system for the stable adjustment of the arm in the blood pressure measuring device according to the present invention, the power supply 22 for supplying power to the inside of the case 10 and the blood pressure measuring device The control circuit section 24 is provided on each circuit board.

The low-cost brake system for stable adjustment of the arm in the blood pressure measuring device configured as described above pushes the subject's arm into the inner space of the arm 20, places the lower arm in the arm rest 16, and the upper arm is the arm cylinder 18. When the start key of the operation part 62 is pressed, the drive motor 28 operates forward rotation, and the pinion 34 coupled to the drive motor 28 is bitten by the rack 68 of the arm 20. Wind up 20. Therefore, the end of the arm 20 is wound clockwise along the inner surface of the arm cylinder 18 to press the upper arm of the subject.

Next, when the drive motor 28 stops, the encoder sensor 41 detects the stop of rotation of the latch 38, and the plunger 40 of the solenoid valve 42 moves forward to be caught by the latch 38. Reverse rotation of the motor 28 is prevented. Subsequently, the solenoid valve 58 is operated to block the rapid exhaust line 50 and the pump 44 is operated.

By the operation of the pump 44, the outside air is sequentially passed through the supply line 46, the distributor 48 and the supply line 52 to enter the bag portion 70 of the armband 20 in the bag portion 70 Pressure rises. At this time, the pressure value is transmitted to the pressure sensor 60 by the air pressure sensing line 56, the electrical signal of the air pressure by the pressure sensor 60 is transmitted to the control means 24 and displayed on the screen of the monitor 24 do. At this time, since the pressure drop due to air flowing out through the fine exhaust line 54 is 3 to 4 mmHg per second, it does not affect the pressurization. Pressurization of the bag portion 70 continues until the pressure in the bag portion 70 reaches a predetermined pressure (185 mmHg).

When the pressure inside the bag 70 reaches a predetermined pressure, the operation of the pump 44 is stopped, and air flows out through the fine exhaust line 54, resulting in a pressure drop at a rate of 3 to 4 mmHg per second. Decompression

This pressure change in the bag is shown graphically in FIG. That is, the pressure is reduced to a maximum pressure of 185 mmHg and then gradually depressurized. The pulse P, which appears during the decompression, becomes a pressure fluctuation due to the pulse. This pressure fluctuation is transmitted to the control circuit unit 24 through the pressure sensor 60 and displayed in real time on the monitor 14, and finally the highest blood pressure (shrinkage blood pressure) and the lowest blood pressure (diastolic blood pressure) are displayed on the monitor 14 do.

When the measurement is finished or the stop key of the operation unit 62 is pressed, the solenoid valve 58 is turned off, the air is rapidly exhausted, the solenoid valve 42 is operated, the plunger 40 is retracted, and the drive motor 28 is reversed. The arm 20 is released by rotating operation.

In the low-cost brake system for stable adjustment of the arm in the blood pressure measuring device according to the present invention, the encoder sensor 41 detects the rotation of the hanger 38, and when the driving motor 28 is stopped, the solenoid valve 42 Since the plunger 40 moves forward and is caught by the latch 38 to prevent reverse rotation of the driving motor 28, the driving device may be simple and the space occupied by the driving device may be small. Therefore, the size of the case may be small and economical.

As described so far, the configuration and operation of the low-cost brake system for stable adjustment of the arm in the blood pressure monitor according to the present invention has been expressed in the above description and the drawings, but this is merely an example and the idea of the present invention is The present invention is not limited to the description and drawings, and various changes and modifications are possible without departing from the technical spirit of the present invention.

10 case 24 control circuit
12: cover 28: drive motor
14 monitor 36 rear motor shaft
16: arm rest 38: hanger
18: arm cylinder 40: plunger
20: arm 41: encoder sensor
22: power supply 42: solenoid valve

Claims

In the low-cost brake system for stable adjustment of the arm in the blood pressure monitor,
The brake system includes a drive motor (28) provided with a rear motor shaft (36) and a hanger (38) for adjusting the tightening and loosening of the arm (20); An encoder sensor 41 for detecting rotation of the drive motor 28; A solenoid valve 42 having a plunger 40 for preventing reverse rotation of the drive motor 28; A control circuit section 24 for controlling the components; Low-power brake system for the stable adjustment of the arm in the blood pressure measuring device, characterized in that consisting of ;;

The method according to claim 1,
The drive motor 28 is a low-cost brake system for stable adjustment of the arm in the blood pressure monitor, characterized in that consisting of a forward and reverse motor capable of forward and reverse rotation.

The method according to claim 1,
A low-cost brake system for stable adjustment of the arm in the blood pressure measuring device, characterized in that the rear side of the motor shaft (36) and the holding table (38) is fixed to the rear side of the drive motor (28).

The method according to claim 1,
The encoder sensor (41) is a low-cost brake system for stable adjustment of the arm in the blood pressure monitor, characterized in that to detect the operating state of the drive motor 28 by detecting the rotation of the hanger (38).

The method according to claim 1,
The plunger 40 of the solenoid valve 42 is advanced to control the rotation of the catch 38 to prevent the reverse rotation of the drive motor 28, the low-cost for stable adjustment of the arm in the blood pressure measuring device Brake system.