KR101800542B1 - Oxygen saturation measurement device - Google Patents

Abstract

The present invention relates to an oxygen saturation measurement device of esophagus insertion type. An oxygen saturation measurement device (200) includes a transparent tube (110) inserted into an esophagus, a light emitting part (210) located at one side of a tube (110) in a longitudinal direction, and a light receiving part (220) spaced apart from the light emitting part (210) by a predetermined distance. The light emitting part (210) and the light receiving part (220) are coupled to the tube (110) in a ring shape. It is possible to measure oxygen saturation safely and accurately.

Description

{OXYGEN SATURATION MEASUREMENT DEVICE}

The present invention relates to an oxygen saturation measuring apparatus, and more particularly, to an apparatus for measuring an oxygen saturation degree of an esophagus in which a ring-shaped light emitting portion and a light receiving portion are combined with a transparent tube inserted into the esophagus.

It is necessary to measure the patient's oxygen saturation (SPO2, blood oxygen saturation concentration) in order to continuously monitor the status of patients undergoing surgery or in recovery.

In general, the method of measuring oxygen saturation is a method of measuring a patient's thumb or index finger in a non-invasive manner by putting a measuring device in the form of a laundry clamp. This type of apparatus for measuring oxygen saturation comprises a light emitting unit and a light receiving unit, and simultaneously emits infrared light and red light through the LED light emitting unit. The emitted light passes through the blood vessel of the finger and is detected through the light receiving part. The difference of the light is measured by using the property that the hemoglobin combined with oxygen absorbs the infrared ray and the reduced hemoglobin absorbs the red light more. Calculate the numerical value.

However, when the oxygen saturation of the finger is measured, not only the accuracy is lowered but also the measurement accuracy is significantly lowered when the patient unconsciously moves the finger. In addition, there is a problem that the accuracy of measurement of oxygen saturation is remarkably deteriorated in a situation where blood flow at a peripheral region such as a finger is decreased (body temperature decrease due to a low temperature in an operating room, hypovolemia, blood flow reduction due to hypotension, etc.).

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a method and apparatus for measuring oxygen saturation of a patient during surgery or recovery, The present invention provides an apparatus for measuring the oxygen saturation of an esophagus inserted into the esophagus of a patient.

It is another object of the present invention to provide an apparatus for measuring intracoronary oxygen saturation configured to simultaneously monitor oxygen saturation, EMG, and body temperature of a patient through a single device.

In the meantime, other objects not mentioned in the present invention will be further considered within the scope of the present invention which can be easily deduced from the following detailed description and effects thereof.

In order to accomplish the above object, the present invention provides an apparatus for measuring the degree of oxygen saturation of an esophagus, comprising: a transparent tube 110 inserted into the esophagus; a light emitting unit 210 located at one side of the tube 110 in the longitudinal direction; The light emitting unit 210 and the light receiving unit 220 are connected to the tube 110 in a ring shape. The light emitting unit 210 includes a light receiving unit 220 spaced apart from the light emitting unit 210, In the present invention.

The apparatus for measuring an oxygen saturation of the esophagus according to the present invention comprises a transparent tube 110 inserted into the esophagus, a light emitting part 210 'located at one side of the tube 110 in the longitudinal direction, The light emitting unit 210 and the light receiving unit 220 are formed in a ring shape in the shape of a ring, and the light emitting unit 210 'includes a light receiving unit 220' integrally coupled to the light emitting unit 210 ' (110).

Preferably, the temperature sensor 120 is coupled to one end of the tube 110, and the temperature sensor 120 is inserted into the esophagus to measure the body temperature of the patient. .

Preferably, the light emitting units 210 and 210 'use an infrared device 214 and a red light device 216, and the light receiving units 220 and 220' use a light receiving device 224 such as an optical sensor or a photodetector, The infrared and red light elements 214 and 216 of the units 210 and 210 and the light receiving unit 224 of the light receiving units 220 and 220 have a plurality of light emitting units 210 and 210 and a plurality of light receiving units 220 and 220 ' .

The light emitting units 210 and 210` and the light receiving units 220 and 220` are provided with body contact sensors 230. The light emitting units 210 and 210` and the light receiving units 220 and 220` are connected to the body contact sensors 230 ) Is contacted with the body.

The apparatus for measuring the oxygen saturation of the esophagus according to the present invention has an advantage that relatively less error occurs in measurement of the oxygen saturation of the patient from the blood vessels in the esophagus than in the measurement of the blood in a low blood flow state.

In addition, since the blood vessel around the esophagus is reflected immediately in the patient's state as compared with the external blood vessels such as the fingers, the change in the state of the patient can be detected more quickly and there is no fear that ambient light will enter the esophagus. There is an effect that the interference of measurement can be greatly reduced.

In addition, there is an advantage that an electromyogram of a patient can be also checked through a body contact sensor that operates a light emitting unit and a light receiving unit.

1 is a side view of an apparatus for measuring an oxygen saturation type of esophagus according to an embodiment of the present invention
2 is a partially enlarged view of 'A' shown in FIG.
3 is a perspective view showing the operation of an apparatus for measuring an oxygen saturation type of esophagus according to an embodiment of the present invention.
4 is a side view of an apparatus for measuring an oxygen saturation type of esophagus according to another embodiment of the present invention.
5 is a partial enlarged view of 'A' shown in FIG.
6 is a perspective view showing the operation of an apparatus for measuring an oxygen saturation type of esophagus according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The objects, particular advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. Also, terms used are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user operator. Therefore, definitions of these terms should be based on the entire contents of the present specification.

It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals even though they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, the terms first, second, A, B, (a), (b), and the like can be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to another component, Connected ", "coupled ", or" connected. &Quot;

Hereinafter, the configuration and operation of an embodiment of the present invention will be described in detail with reference to the drawings.

1 and 3 are respectively a side view and a perspective view of an apparatus for measuring an oxygen saturation type of esophagus according to an embodiment of the present invention. 1 and 3, an apparatus 10 for measuring intramuscular oxygen saturation of an esophagus according to an embodiment of the present invention includes a transparent tube 110 inserted into the esophagus, A light receiving unit 220 spaced from the light emitting unit 210 by a predetermined distance and a body contact sensor 230 for operating the light emitting unit 210 and the light receiving unit 220 .

The tube 110 has a long pipe shape made of a transparent material, and a temperature sensor 120 can be coupled to one end of the tube 110. Patients are anesthetized for surgery and maintaining the body temperature during anesthesia is very important. If the anesthesia patient falls into hypothermia, the metabolic rate decreases and the recovery from the anesthesia is delayed. In severe cases, the bleeding tendency also occurs, so maintaining proper body temperature during anesthesia is very important.

In the case of anesthesia patients, it is important to measure the body temperature in order to measure the body temperature stably without external influences. The body temperature measuring part is the eardrum, esophagus, bladder, rectum, etc., The temperature sensor 120 is attached to one end of the tube 110 so as to be located at the lower third of the esophagus to monitor the body temperature of the patient while measuring the oxygen saturation. The body temperature measured through the temperature sensor 120 is transmitted to the operator's monitor through the cable tube 300.

1 and 2, a light emitting unit 210 for emitting infrared light and red light and a light receiving unit 220 for sensing light emitted through the light emitting unit 210 are mounted on the end of the tube 110 .

The light emitting unit 210 includes a light emitting case 212 and infrared rays 214 and red light elements 216 and a body contact sensor 230 having different wavelengths. The light emitting part 210 may be provided adjacent to the temperature sensor 120 along the longitudinal direction of the tube 110 as in the present embodiment, but the present invention is not limited thereto. For example, when the tube 110 is inserted into the esophagus, The portion 210 can also be located anywhere in the tube 110 if it is located in the esophagus.

The light emitting case 212 serves as a housing in which the infrared light emitting element 214 and the red light emitting element 216 are housed and a body contact sensor 230 is disposed outside the light emitting case 212. The light emitting case 212 is coupled to surround the tube 110 in a ring shape. A plurality of infrared devices 214 and red light devices 216 are arranged along the circumference (circumference) of the light emitting case 212 inside the light emitting case 212. At this time, it is preferable that the infrared ray device 214 and the red light ray device 216 having different wavelengths are positioned one by one in pairs.

In addition, the pair of infrared ray devices 214 and the red light ray device 216 are connected to one body contact sensor 230. It is preferable that the body contact sensor 230 is also arranged in a number corresponding to the pair of infrared ray devices 214 and the red light ray device 216 along the circumference (circumference) of the light emitting case 212.

The body contact sensor 230 is a sensor activated when the user touches the inside of the esophagus of the patient. When the body contact sensor 230 contacts the body of the patient, the infrared sensor 214 and the infrared sensor 214, which are connected to the body contact sensor 230, The red light element 216 is operated. In other words, when the body contact sensor 230 is not in contact with the body of the patient, the infrared element 214 and the red light element 216 connected to the body contact sensor 230 are also not operated.

The light emitting case 212 may be made of a material capable of transmitting a light source emitted through the infrared ray device 214 and the red light emitting device 216 or may be formed with an opening hole for passing the light source.

As described above, the infrared ray device 214 and the red light device 216 have different wavelengths. The infrared device 214 has a wavelength of 900 to 920 nm, and the red light device 216 has a wavelength of 650 to 670 nm. Each of the infrared ray device 212 and the red light device 214 may be an LED (Light Emitting Diode) or a laser diode as a means for emitting a light source, and an LED is used in the present embodiment.

The light receiving unit 220 includes a light receiving case 222, a light receiving device 224, and a body contact sensor 230. The light receiving unit 220 is spaced apart from the light emitting unit 210 along the longitudinal direction of the tube 110. The light receiving unit 220 may be disposed on the upper side of the light emitting unit 210 along the longitudinal direction of the tube 110. The present invention is not limited thereto, 220 may be positioned on the lower side of the light emitting portion 210.

The light-receiving case 222 serves as a housing in which a later-described light-receiving device 224 is housed. The light-receiving case 222 is also coupled to the tube 110 in a ring shape like the light-emitting case 212. A plurality of light receiving devices 224 are arranged along the circumference (circumference) of the light receiving case 222 at the inner side of the light receiving case 222 and a body contact sensor 230 is provided at the outer side of the light receiving case 222, And one body-contact sensor 230 is connected to one light-receiving device 224. The body- At this time, the light receiving device 224 is operated by the respective body contact sensors 230, and the body contact sensor 230 is driven while being in contact with the inside of the patient's esophagus as described above.

The light receiving case 222 is made of a material capable of transmitting a light source to absorb the light sources of the infrared ray device 214 and the red light device 216 through the light receiving device 224 or an opening hole for passing the light source is formed .

The light receiving device 224 receives the infrared ray or red light emitted from the infrared ray device 216 and the infrared ray device 214 of the light emitting unit 210 and converts the infrared ray signal into an electrical signal. At this time, since infrared rays and red light transmitted to the light receiving device 224 pass through the blood vessels around the esophagus, the oxygen saturation of the patient is measured using the infrared rays and the red light. The light receiving device 224 may be a light sensor or a light detector.

The body contact sensor 230 drives each infrared ray device 214, the red light element 216, and the light receiving device 224 connected to the inside of the esophagus, as described above. It is preferable that the body contact sensor 230 is made of a metal material capable of conducting electric current so as to be able to conduct an electromyogram of the patient while the body contact sensor 230 is in contact with the body of the patient.

The cable tube 300 includes a plurality of wires (not shown) electrically connecting the temperature sensor 120 and the light emitting unit 210 and the light receiving unit 220. These wires are connected to an external monitoring device so as to monitor the detection values of the temperature sensor 120 and the light receiving unit 220. [

4 and 6 are respectively a side view and a perspective view of an apparatus for measuring an oxygen saturation type of esophagus according to another embodiment of the present invention.

Hereinafter, a configuration of an apparatus for measuring an intramuscular oxygen saturation according to another embodiment of the present invention will be described in detail with reference to the drawings.

4 and 6, an apparatus 10 'for measuring the degree of oxygen saturation of an esophagus according to another embodiment of the present invention includes a transparent tube 110 inserted into the esophagus, A light receiving unit 220` coupled to the light emitting unit 210` in a ring form integrated with the light emitting unit 210` and a light emitting unit 210` for operating the light emitting unit 210` and the light receiving unit 220`, And a body contact sensor 230.

Accordingly, in describing the apparatus 10 'for measuring an intramuscular oxygen saturation of the esophagus according to another embodiment of the present invention, the description of parts overlapping with those of the embodiment of the present invention will be omitted. Only the light emitting part 210 'and the light receiving part 220' which are different from the example will be described.

Referring to FIGS. 4 and 5, the light emitting unit 210 'and the light receiving unit 220' are integrally formed. The light emitting part 210` includes a light emitting case 212`, an infrared ray device 214, a red light element 216 and a body contact sensor 230. The light receiving part 220` includes a light receiving case 222`, An apparatus 224, and a body contact sensor 230. [

The light emitting case 212 'and the light receiving case 222' are semicircular, respectively, and are coupled to each other to have an integral ring shape. The light emitting case 212 'and the light receiving case 222' may be formed of a material capable of transmitting a light source for diverging and absorbing the infrared light and the red light source, or may have an opening hole for passing the light source.

A pair of infrared ray devices 214 and a plurality of red light emitting devices 216 and a light receiving device 224 are arranged on the inner side of the light emitting case 212 'and the light receiving case 222' And a body contact sensor 230 is connected to a pair of infrared ray devices 214, a red light device 216 and a light receiving device 224 on the outside.

Hereinafter, the operation of the apparatus for measuring intracoronary oxygen saturation according to another embodiment of the present invention will be described in detail.

3 and 6, an esophageal insertion-type oxygen saturation measuring device 10, 10 'according to an embodiment of the present invention is inserted into the esophagus of an operation patient. At this time, the temperature sensor 120 coupled to the end of the tube 110 measures the body temperature in the esophagus of the patient. The measured body temperature value is output to an external monitor device through a cable (not shown) of the cable tube 300.

When the body contact sensor 230 of the light emitting part 210 or 210 inserted into the patient's esophagus is brought into contact with the inner wall of the esophagus when the body contact sensor 230 is in contact with the inside of the esophagus, A light source of a different wavelength is emitted from a pair of the infrared ray device 214 and the red light ray device 216 connected to each other. The infrared rays and the red light are emitted from the light emitting units 210 and 210 ', transmitted through blood vessels around the esophagus of the patient, and then detected by the light receiving unit 224 of the light receiving units 220 and 220'. At this time, the amount of light sensed by the light receiving device 224 is measured by the property that the sensitivity fraction between the unsaturated hemoglobin and the saturated hemoglobin depends on the expansion and contraction of the pulsatile artery.

Further, the body contact sensors 230 can be stably contacted with the inner surface of the esophagus due to the ring-shaped light emitting portions 210 and 210 'and the light receiving portions 220 and 220' .

The measurement of oxygen saturation by inserting into the esophagus as in the present invention can reduce the error of the measurement of oxygen saturation that may be caused by external light and the blood vessels around the esophagus are more likely to have a state of the patient than the external blood vessels such as fingers So that the change in the state of the patient can be grasped more quickly.

In addition, although the device for measuring intramuscular oxygen saturation 10,10` according to the present invention has been described as a patient, it can be applied to all animals having esophagus as well as humans, all belonging to the scope of the present invention It should be understood.

It is to be understood that the terms "comprises", "comprising", or "having" as used in the foregoing description mean that a constituent element can be implanted unless specifically stated otherwise, But should be interpreted to include additional components. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: esophageal temperature measuring instrument 110: tube
120: Temperature sensor 200: Oxygen saturation measuring device
210, 210`: Light emitting part 212, 212`: Light emitting case
214: Infrared device 216: Red light device
220,220`: Light receiving part 222,222`: Light receiving case
224: Light receiving device 230: Body contact sensor
300: Cable Tube

Claims (6)

A transparent tube inserted into the esophagus,
A ring-shaped light emitting case which is located at one point along the longitudinal direction of the tube and protrudes convexly along the outer circumference of the tube; a pair of infrared rays and a plurality of red light rays A light emitting unit including a body contact sensor connected to the pair of infrared and red light elements and arranged in a plurality of locations along the circumference of the light emitting case;
A ring-shaped light-receiving case spaced apart from the light-emitting part along the longitudinal direction of the tube and protruding along the outer periphery of the tube, a light-receiving device having a plurality of light- And a light receiving unit connected to the light receiving unit and including a plurality of physical contact sensors disposed along the periphery of the light receiving case,
Wherein the infrared device, the red light device, and the light receiving device are operated while being in contact with the body when the body contact sensor connected to the body is in contact with the body.
A transparent tube inserted into the esophagus,
A semi-circular ring-shaped light emitting case which is located on one side of the tube in the lengthwise direction and which is convexly protruded along the outer circumference of the tube, a pair of infrared rays and a red light element which are arranged along the circumference of the light emitting case, A light emitting unit including a body contact sensor connected to the pair of infrared rays and the red light rays and having a plurality of teeth arranged along the circumference of the light emitting case;
A semicircular ring-shaped light-receiving case integrally coupled with the light-emitting part and protruding along the outer circumference of the tube, a light-receiving device having a plurality of light-emitting devices arranged along the periphery of the light- And a light receiving unit including a plurality of physical contact sensors disposed along the periphery of the light receiving case,
Wherein the infrared device, the red light device, and the light receiving device are operated while being in contact with the body when the body contact sensor connected to the body is in contact with the body.
3. The method according to claim 1 or 2,
Wherein a temperature sensor is coupled to one end of the tube and the temperature sensor is inserted into the esophagus to measure the body temperature of the patient.
delete delete delete

Images