KR101113808B1 - Sensor unit for measuring oxygen-saturation - Google Patents

Abstract

The present invention relates to an oxygen saturation measuring device, which is provided with a bellows made of a stretchable material on both front sides of the upper case and the lower case, so that when the oxygen saturation measuring device is used, the light inside or the outside light is introduced into the inside. It is fundamentally cut off, and the ventilation holes are formed on the inner side of the lower case and alternately on one side or both sides, thereby reducing the measurement error caused by the occurrence of sweat in the long-term use, and improving the accuracy of the measurement. will be.

Oxygen saturation, sensor, light emitting element, light receiving element, bellows, vent

Description

Oxygen Saturation Meter {SENSOR UNIT FOR MEASURING OXYGEN-SATURATION}

The present invention relates to an oxygen saturation measuring device, and more particularly, to a clip-type oxygen saturation measuring device mounted on a finger to block external light when measuring oxygen saturation and pulse of arterial blood to improve the accuracy and reliability of the test. It is about.

In general, an oxygen saturation measuring device is a medical measuring instrument that checks various check points such as oxygen saturation or pulse rate by coupling a finger of a patient to check the blood flow state of the finger.

An example of such an oxygen saturation meter is schematically illustrated in FIG. 1. This shows a sensor unit 10 to which a cable 14 is connected to a measuring instrument body (not shown), where an adhesive 13 is applied to the base 15 and the light emitting element 12 and the light receiving element on the adhesive 13. The device 11 has a structure in which it is arranged at regular intervals.

The sensor unit 10 detects the light of the light emitting element 11 that penetrates the finger T of the patient, thereby measuring the amount of oxygen or pulse in the blood.

However, the conventional sensor unit as described above is cumbersome to use due to the adhesion of foreign matters due to the use of the adhesive 13, and sweat and odors occur during long-term use, and thus the wearability is not good.

In addition, since the light emitting element 11 and the light receiving element 12 are installed at regular intervals, various types of sensor units having different intervals between the two elements 11 and 12 are required according to the size of the finger T of the patient. For one-time use, it is disadvantageous in cost reduction.

In order to solve this problem, as illustrated in FIG. 2, the upper and lower tongs 21 and 22 formed on one side of the hinge part 20 and the upper and lower tongs in a state where the hinge part 20 overlaps with each other ( The hinge shaft 23 for rotatably coupling the 21 and 22 to the inner side of the upper and lower tongs 21 and 22 so as to be positioned between the upper and lower tongs 21 and 22 is attached to the finger T Support 24 made of silicon or rubber material so as not to pressurize, spring 25 for applying elasticity so that the upper and lower tongs 21 and 22 are always closed, and the upper and lower tongs 21 It consists of a light emitting element 26 and a light receiving element 27 which are respectively provided to penetrate the support 24 at the opposing position of, 22 to be in contact with the finger T.

In addition, a handle 28 is formed on the back of the upper and lower tongs 21 and 22 to press the upper and lower tongs 21 and 22 by hand, and the light emitting and light receiving elements 26 and 27 are wired. It is connected to a separate control (read) device (not shown) at 29.

In order to use the sensor unit of the oxygen saturation measuring device as described above, the user (nurse, etc.) presses the handle 28 formed on one side of the upper and lower tongs 21 and 22, and the upper and lower tongs 21 and 22. ) Is opened, the patient's finger (T) is inserted between them.

When the finger T is inserted, the upper and lower tongs 21 and 22 are closed by the elasticity of the spring 25 when the upper and lower tongs 21 and 22 held by the user (nurse, etc.) are released. ) Will be pressed.

When the finger T is pressed by the upper and lower forceps 21 and 22, the finger T is positioned between the light emitting element 26 and the light receiving element 27, and the light emitting element ( When the light emitting device 26 emits light, the amount of transmission reaching the light receiving element 27 is changed by the finger T, thereby estimating the blood flow state.

That is, the amount of received light entering the light receiving element 27 changes while the light emitted from the light emitting element 26 passes through the finger T, and the state of the blood flow and the pulse are measured by estimating the change amount.

However, the prior art as described above, when the upper and lower forefinger rotates about a hinge, which is one axis, and inserts a finger therebetween, and then measures blood flow with the light emitting and light receiving elements, the light emitting and light receiving elements and the finger. There is a gap between the two, which causes the amount of light emitted from the light emitting element to the light receiving element is leaked to the outside or vice versa, the external light is introduced into the interior, which makes the test inaccurate. There is a problem that can not check the status correctly.

However, in the case of completely enclosing the finger as a measurement site, by blocking the circulation of the air in a closed structure, there is a problem that can cause a measurement error due to the generation of sweat when used for a long time.

The present invention has been made in order to solve the above problems, the finger of the oxygen saturation meter of the bellows of the elastic material (for example, silicon) is fastened to both sides to block the light when the upper and lower cases are opened To provide a sensor unit.

In addition, to provide a sensor unit of the oxygen saturation measuring instrument having a vent on one side of the lower case for the circulation of air.

In order to achieve the above object, the oxygen saturation measuring device according to the present invention includes an upper case and a lower case rotatably fastened around a hinge, a light receiving element mounted on the upper case, a light emitting element mounted on the lower case, In the clip-type oxygen saturation measuring device comprising a spring fastened to the hinge, both front sides of the upper case and the lower case is attached to the bellows made of an elastic material, each of the upper case and the lower case In the interior, the light receiving element or the support is built in the light emitting element; A fitting wall on which the support is mounted and formed integrally with each case; A plurality of fitting grooves are formed in the fitting wall, and a plurality of fitting pieces are formed at positions corresponding to the plurality of fitting grooves on both the upper and lower sides of the bellows, and the plurality of fitting pieces are called the bellows. It is fastened to each of the fitting groove is characterized in that the detachably attached to both front sides of the upper case and the lower case.

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In addition, the bellows is made of a silicone material stretchable in a plurality of wrinkles, each fitting piece is characterized in that the "T" shaped protrusions, each fitting groove is a "T" shaped recessed groove is another feature .

And, the inner side of the lower case is further formed with one or both sides of the ventilation openings around the hinge, when the ventilation openings are formed on both sides of the hinge is characterized in that the ventilation opening grooves are alternately provided with each other.

In addition, a handle for clamping is formed on the rear parts of the upper case and the lower case, respectively, and a connector coupling groove to which a lead wire is connected is further formed on the front part of the lower case.

According to the configuration of the present invention, the bellows made of a stretchable material is provided on both front sides of the upper case and the lower case, thereby fundamentally blocking the internal light from flowing out or the external light flowing into the inside when the oxygen saturation meter is used. This improves the accuracy of the measurement.

In addition, by further forming a ventilation hole alternately to one side or both sides around the hinge inside the lower case, there is an effect of reducing the measurement error due to the generation of sweat or the like during long-term use.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

Figure 3 is an exploded perspective view of the oxygen saturation meter of the present invention, Figure 4 is a perspective view showing a vent provided on one side of the oxygen saturation meter of the present invention.

5 is a view showing a state in which the oxygen saturation measuring device of the present invention is opened, FIG. 6 is a view showing a state in which the bellows which is fastened to the side of the oxygen saturation measuring device of the present invention is partially detached, and FIG. 7 is an oxygen saturation measuring device of the present invention. Figure is an enlarged view showing the state in which the bellows is fastened to.

As shown in FIGS. 3 to 7, the oxygen saturation measuring device of the present invention is integrally formed with the fitting wall 33 on the upper case 31 and the lower case 32, respectively, and the fitting wall 33 is formed of a silicon material. The fitting groove 37 is formed to fasten the bellows 80.

In addition, a locking jaw 38 is formed at an inner side of the fitting wall 33, and a locking protrusion 72 formed at an outer side of the support 70 directly contacting the finger is fastened to the locking jaw 38. It is done.

That is, the fixing protrusion 72 formed on the outside of the support 70 in direct contact with the finger is fitted to the locking projections 38 formed inside the fitting walls 33 of the upper case 31 and the lower case 32 to support the support. 70 is to be mounted. At this time, each support 70 may be further attached to the elastic elastic material in the place where the finger is in contact.

In addition, an insertion groove 71 is formed at an inner side of each support 70 that is mounted to the upper case 31 and the lower case 32, and each of the insertion grooves 71 has a light receiving element 44 or light emission. An element 45 is provided. Preferably, the light receiving element 44 is provided in the support slot 70 of the upper case 31, and the light emitting element 44 is installed in the support slot 70 of the lower case 32. .

Outside the upper case 31 and the lower case 32, the guide portion 34 is formed integrally with each case so as to be superimposed on each other, the hinge 60 is fastened to each of the guide portion 34 The fastening hole 35 is formed.

In addition, the front part of the upper case 31 is fastened so that the projection 42 of the connector 41 to which the light receiving element 44 and the light emitting element 45 are connected to the lead wire 43 for supplying a sensing signal and power. The groove 36 is formed. By doing so, when using the oxygen saturation measuring device according to the present invention in a portable manner, there is an advantage of removing inconvenience in use than when the lead wire is connected to the conventional handle portion.

In addition, the handles 39 are formed on the rear portions of the upper case 31 and the lower case 32 so as to open the respective cases 31 and 32 by hand.

In addition, the ventilation holes 40 are separately formed in the lower case 32 to circulate the air flow. At this time, the vent 40 is provided to contact the back of the support 70 of the lower case 32, as shown in Figure 3, but preferably provided on both sides of the hinge 60 of the lower case 32 (Figure 4 ), Make sure the ventilation openings are staggered.

On the other hand, on both sides of the bellows 80 made of silicon fastened to the fitting groove 37 of the upper case 31 and the lower case 32, a plurality of fitting pieces 81 are provided at positions corresponding to the fitting groove 37. It is formed integrally, the fitting piece 81 is fastened to the fitting groove 37, the bellows 80 is fastened to both sides of the upper and lower cases 31, 32. Preferably, the fitting piece 81 forms a protruding piece in a "T" shape, and the fitting groove 37 forms a dent groove in a "T" shape to facilitate detachment while being separated from each other in use (FIG. 6 and FIG. 7).

As described above, by fastening the bellows 80 to both sides of the upper and lower cases 31 and 32, it is possible to effectively prevent the external light flows in or out of the light irrespective of the user's finger thickness. Will be.

In addition, a spring 50 having elasticity is fastened to the hinges 60 of the upper and lower cases 31 and 32, and the spring 50 is formed on the outside of the upper and lower cases 31 and 32. 34 is inserted and fixed between the protrusion 61 and the fastening part 62 of the hinge 60 inserted into the fastening hole 35 provided in the.

That is, the upper case 31 and the lower case 32 overlap with the fastening hole 35 provided in the guide part 34 formed on the outer side of the upper case 31 and the lower case 32. The protrusion 61 and the fastening part 62 of the hinge 60 are inserted into the fastening hole 35, and a spring 50 having elasticity between the protrusion 61 and the fastening part 62 of the hinge 60. ) Is inserted and fastened.

The oxygen saturation measuring device configured as described above is opened by pressing the handles 39 of the upper and lower cases 31 and 32, and inserting the user's (patient) finger, and then releases the handle 39 of the spring 50. The upper and lower cases 31 and 32 are closed by elasticity, and the upper and lower support members 70 press the fingers.

At this time, the bellows 80 on both sides of the upper and lower cases 31 and 32 opened while being opened As the upper and lower cases 31 and 32 are closed and slightly recessed, external light is introduced or the internal light is blocked.

The oxygen saturation measuring device according to the present invention senses the amount of light transmitted from the light emitting element 45 and passes through a finger to be received by the light receiving element 44, thereby measuring the amount of oxygen in the blood or measuring the pulse rate or the like. During the beating, when it passes through the red-red blood that contains a lot of oxygen, it absorbs a lot of red light, and when it passes through the dark red blood which contains less oxygen, it absorbs more of the infrared light. Oxygen saturation, pulse rate or pulse intensity in the blood is measured using the difference in absorption coefficients according to light sources of oxyhemoglobin and deoxyhemoglobin), and the interference of external light or light emitting device 45 for more accurate measurement. The most important thing is to keep the internal light from leaking out.

In the present invention, as a means for achieving the above object, it is a key technical idea that the upper and lower cases 31 and 32 are detachable and provided with a stretchable bellows 80.

In addition, a predetermined ventilation hole 40 is formed in the lower case 32, that is, provided to be in contact with the rear surface of the support 70, or the ventilation openings are provided on both sides of the hinge 60 of the lower case 32. As a result, it is also a core technical idea of the present invention to block the light inside and outside, as well as to circulate the flow of internal air to prevent an error from occurring due to sweat on the fingers.

As described above, the preferred embodiments in which the core technical spirit of the present invention is implemented are described, but those skilled in the art can variously modify and implement the embodiments, and a description thereof will be omitted.

1 is a diagram illustrating a conventional oxygen saturation meter.

2 is a cross-sectional view showing another conventional oxygen saturation meter.

3 is an exploded perspective view of an oxygen saturation measuring device according to the present invention.

Figure 4 is a perspective view showing a vent provided on one side of the oxygen saturation measuring device according to the present invention.

5 is a view illustrating a state where the oxygen saturation measuring device according to the present invention is opened.

6 is a view illustrating a state in which the bellows fastened to the oxygen saturation measuring device according to the present invention is partially detached.

7 is an enlarged view illustrating a state in which a bellows is fastened to the oxygen saturation measuring device according to the present invention.

 <Description of Symbols for Main Parts of Drawings>

31: upper case 32: lower case

33: barrier wall 34: guide part

35: fastening hole 36: fastening groove

37: fitting 38: jamming jaw

39: handle 40: ventilation holes

41: connector 44: light receiving element

45: light emitting element 50: spring

60: hinge 70: support

80: bellows

Claims (5)

delete A tong type oxygen saturation comprising an upper case and a lower case rotatably fastened around a hinge, a light receiving element mounted on the upper case, a light emitting element mounted on the lower case, and a spring fastened to the hinge. In the measuring instrument, Bellows made of a stretchable material are attached to both front sides of the upper case and the lower case, In each of the upper case and the lower case, A support on which the light receiving element or the light emitting element is installed; A fitting wall on which the support is mounted and formed integrally with each case; Includes a plurality of fitting grooves formed in the fitting wall, On both sides of the bellows, a plurality of fitting pieces are formed at positions corresponding to the plurality of fitting grooves, The bellows is oxygen saturation measuring device characterized in that the plurality of fitting pieces are fastened to the corresponding respective fitting grooves and detachably attached to both front sides of the upper case and the lower case. The method of claim 2, The bellows is made of a silicone material stretchable to a plurality of wrinkles, Each fitting piece is a "T" shaped protrusion, Each fitting groove is an oxygen saturation meter, characterized in that the "T" shaped groove. The method of claim 3, wherein The inner side of the lower case is further formed with one or both vents around the hinge, the oxygen saturation measuring instrument, characterized in that the ventilation openings are alternately provided when the vent is formed on both sides of the hinge. The method of claim 4, wherein Tongs handles are formed on the rear portions of the upper case and the lower case, respectively. Oxygen saturation measuring instrument characterized in that the front portion of the lower case is further formed with a connector fastening groove connected to the lead wire.

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