KR20020080830A - Sensor structure for portable pulsimeter - Google Patents

Abstract

PURPOSE: A sensor structure for a portable pulsimeter is provided to increase the accuracy of taking-pulse by employing a semi-solid silicon gel for use in the transmission of pressure. CONSTITUTION: A pressure sensing unit(10b) and a semi-solid silicon gel(12) are provided on a sensor body(11). The semi-solid silicon gel(12) is placed on the surface of the pressure sensing unit(10b) and detects the pressure and cycle of blood stream flowing a human body through a blood vessel. The semi-solid gel(12) transmits the detected pressure and cycle of blood stream to the pressure sensing unit(10b). A supporting plate(13) adjusts a distance between the human body and the semi-solid gel(12) on the sensor body(11). The supporting plate(13) is provided with a silicon through hole(13a).

Description

Pressure sensor for portable pulse device {SENSOR STRUCTURE FOR PORTABLE PULSIMETER}

The present invention relates to a pressure sensor, and more particularly, to a pressure sensor for a portable pulse device, which is small in size and can be installed and used in a portable medical device, in particular, a portable pulse device.

With the development of sensing technology and data analysis methods, many new medical devices are being developed, and according to the development of such medical devices, many diagnostics such as resin needles or pulse pulse devices have been developed even in the oriental medicine field, which was conventionally relying only on hand diagnosis. And therapeutic equipment is in use.

One such medical device is a device for detecting a human's pulse state, that is, a pressure or a cycle of the pulse, and a device for diagnosing a health state by analyzing the detected pulse information.

These pulse detection or diagnostic devices (hereinafter, referred to as 'pulsation device') are using a pressure sensor for measuring the pressure and period of blood flow through the blood vessel.

Conventional pressure sensors for pulsation devices use air pressure as a means for bringing the pressure sensor into close contact with the human body, and an air bag and an air injection device are used as means for generating such air pressure.

As the means for bringing the pressure sensing unit into close contact with the human body is used, the conventional pulsating devices have become large in size and inconvenient to carry.

Therefore, those who need to use the pulsating organs are usually people who have diseases that are deeply related to blood pressure, and these patients can make timely progression despite the problem of sudden increase or decrease of blood pressure. There was a problem that caused unfortunate circumstances.

In addition, the conventional pressure sensor has a problem that can not be accurately made since it does not respond to blood pressure sensitively by many auxiliary means.

The present invention is to solve the problems of the prior art as described above, and it is an object to provide a pressure sensor for a pulsating device that can be used in a portable pulsating device by miniaturization, and can be more accurate.

1 is a perspective view showing an example of a pressure sensor according to the present invention,

2a and 2b is a partial cross-sectional view for explaining the operation example of the pressure sensor according to the present invention,

Figure 3 is a perspective view showing an example of a portable pulsating device is installed pressure sensing of the present invention.

*** Explanation of main parts of drawing ***

10: pressure sensor 10a: lead frame

10b: pressure sensing unit

11: sensor body

12: Solid Silicon Gel for Piezoelectricity

13: silicon support plate

14: wire

An object of the present invention as described above, in the pressure sensor for the pulse wave device, the pressure sensing portion of the pressure sensor is provided by the pressure-transfer silicon, and a support plate body is installed around the silicon Made by pressure sensor.

In addition, the object of the present invention is to form the pressure-transfer silicon in a semi-solid (, 固体), and the thickness of the support plate body is the same or somewhat thinner than the thickness of the silicon to make the silicon more closely to the human body blood pressure and cycle This is achieved by allowing the pressure sensing unit to be delivered more sensitively.

Hereinafter, an embodiment of a pressure sensor for a portable pulse device according to the present invention will be described with reference to the accompanying drawings, but this is only one embodiment and is not intended to limit the scope of the present invention.

1 is a perspective view showing an example of a pressure sensor according to the present invention, Figures 2a and 2b is a partial cross-sectional view for explaining the operation of the pressure sensor according to the present invention, Figure 3 is a pressure sensor of the present invention is installed It is a perspective view which shows an example of a portable pulse apparatus.

As illustrated, the pressure sensor 10 for a portable pulsation device according to the present invention is further provided with a semi-solid silicone gel 12 for pressure transmission on the surface of the pressure sensing unit 10b.

The pressure sensor 10 is a silicon gel 12 is installed in the sensor main body 11 and the pressure sensing unit 10b formed on one side of the sensor main body 11, which is configured as one of the normal pressure sensor. Piezoelectric solid silicone gel 12 is a means for transmitting the pressure and the cycle of the blood flow through the blood vessel to the pressure sensing unit (10b) formed in the sensor body portion 11, but more sensitive pressure and cycle.

Typically, the transfer of pressure or sound is well transmitted in the solid state rather than in the liquid state in the liquid state than in the gas state. In other words, the higher the density of the medium, the better the delivery.

This is expressed as follows.

The intensity I of the wave

to be.

Where f is frequency, ρ is density, and A is amplitude v.

Therefore, in the present invention, the piezoelectric solid silicon 12 has a higher density than air, so that waves are well delivered. As described above, the pressure and the period of blood passing through the blood vessel through the blood vessel are sufficiently transmitted to the sensor main body. It is installed to compensate for the disadvantages.

It is a semi-solid gel that is excellent in the weather resistance durability harmless to the human body of the conventional silicone is required to maintain the shape as the silicone spreads to the outside.

The support plate 13 is a means for maintaining the distance between the sensor body 11 and the human body, that is, a means for adjusting the distance of the contact portion of the silicon gel 12 installed in the pressure sensing unit (11b) As a result, a silicon through hole 13a is formed therethrough, and the silicon 12 is inserted into the silicon through hole 13a.

The end of the silicon gel 12 is installed in a state protruding somewhat from the end of the silicon through hole (13a) formed in the support plate body 13, the center portion is protruded more than the edge portion as shown in Figure 2a By forming the arc shape to be in a state closer to the human body.

One side of the sensor main body 11 is provided with a lead frame 10a for making an electrical connection with the sensing circuit therein.

Such a pressure sensor according to the present invention can be used in a small portable pulsation device that can be formed integrally with a watch or the like as shown in FIG.

As illustrated, the pressure detector 10 for a portable pulse wave device according to the present invention has a structure worn on the wrist, that is, a pressure table 80 for fixing the device to the wrist 100 when installed in a pulse device configured integrally with a watch or the like. (Watch band) may be configured in a double and installed therebetween, wherein the support plate 13 forms a silicon through hole (13a) in the pressure zone of one side of the dual pressure zone 80 (watch band). The structure of the silicon gel 12 can be further simplified and downsized. In addition, the electric wire 14 which electrically connects the pulsator main body 20 and the sensor main body 11 can be embedded in the presser 80.

When using the pulsation device using the pressure sensor 10 configured as described above, in the state in which the pulsation device is normally worn, the arc-shaped protruding portion in the center of the silicone gel 12 is kept spaced from the human skin as shown in FIG. 2A. However, when driving the pulsation device, that is, when the user wants to make a slack, when the pressure table 80 is tightened, the silicon gel 12 is brought into close contact with the human body and comes close to the blood vessel 90 and further pressure is applied. As shown in FIG. 2B, the arc-shaped protruding portion in the center of the silicone gel 12 is pushed toward the sensor main body 11 to be in close contact with the pressure sensing unit 10b of the sensor main body 11. The pressure and period of the thermal fluid flowing through the blood vessel are sensitively transmitted to the sensor main body 11.

As described above, the pressure sensor for the pulsation device of the present invention forms a state in which the semi-solid silicone gel for pressure transmission provided in the pressure sensing unit of the sensor main body is in close contact with the blood vessel, thereby making the sensor more sensitive to the pressure and period of blood flow flowing through the blood vessel. It can be delivered to the body has the effect of making a more accurate climax.

In addition, the present invention can not only replace the conventional air pressure pulsation device, but also can miniaturize the pressure sensor for the pulsation device to make the pulsation device downsized and easy to carry and thus people who need to make frequent diagnosis are more stable diagnosis. It has the effect of making it possible.

Claims (4)

In the pressure sensor for pulsation device, And a semi-solid silicone gel for pressure transmission in a pressure sensing unit of the pressure sensor, and a support plate body is installed around the silicon. The pressure sensor of claim 1, wherein the silicon gel is semi-solid. The pressure sensor of claim 1, wherein the support plate has a thickness equal to or slightly thinner than that of silicon. The pressure sensor of claim 1 or 2, wherein the end portion of the silicon is formed in an arc shape protruding from the center portion thereof.