KR102108730B1 - an apparatus for measuring hemokinesis - Google Patents

Abstract

The present invention relates to a blood flow measuring device, and more particularly, when analyzing blood flow in peripheral blood vessels located on a finger or the like, by using infrared rays, it is possible to shoot subcutaneous blood flow without applying MG oil, as well as a clearer image. It relates to a blood flow measurement device that can be taken to accurately diagnose the condition of the blood flow.
The present invention for achieving the above object is a sample fixing unit on which the object is placed, an objective lens positioned on top of the sample fixing unit, an imaging unit for photographing an enlarged image through the objective lens, and the imaging unit It comprises a condensing lens that is located at the bottom and collects the magnified image from the objective lens, and is provided with a light source unit for irradiating light to the object, the light source unit being rotatably provided outside the objective lens, Characterized in that it comprises a plurality of light sources installed on the edge of the rotating plate.

Description

Blood flow measuring device {an apparatus for measuring hemokinesis}

The present invention relates to a blood flow measuring device, and more specifically, when analyzing blood flow in peripheral blood vessels located on a finger or the like, by using infrared rays, it is possible to shoot subcutaneous blood flow without applying MG oil, as well as a clearer image. It relates to a blood flow measurement device that can be taken to accurately diagnose the condition of the blood flow.

In general, if there is a problem with the coronary artery directly connected to the heart, it is urgent and serious enough to determine life and death, whereas it has the characteristic of not being able to feel the symptoms at normal times.

Conversely, when there is a problem with peripheral blood circulation, the function of the cells in the whole body trembles, symptoms appear in various forms such as tingling, coldness, and pain, and tissues are gradually broken, for example, the process of diabetic complications progressing. Can be lifted.

In medical terms, “Peripheral Vascular Disease” (PVD) occurs in most blood vessels except the heart and coronary arteries. “When peripheral blood circulation problems occur, stroke,” aneurysms (the disease in which the arteries swell and burst) Diabetes complications and hypertension occur, and the likelihood of diseases such as heart attack increases.

In addition, the westernization of the diet and heavy stress, drinking, 서 emotional conflict, anxiety, obesity, etc., the peripheral circulatory disorders occur, memory decline, weakness, concentration weakening, dizziness, chronic fatigue, etc. Symptoms and develop into various chronic diseases.

So, in order to analyze the blood flow of peripheral blood vessels, a technique described in Korean Patent Publication No. 10-2001-0010730 as shown in FIG. 1 was proposed, the technical feature of which is to capture and capture subcutaneous capillaries in the skin. An apparatus for analyzing a blood flow state from information obtained, comprising: a medical light generating unit (11) generating medical light for imaging the capillaries; An optical fiber unit 12 that focuses light from the medical light generating unit 11 and enters it subcutaneously; A microscopic lens 19 that enlarges and shows the subcutaneous capillaries; A CCD camera (20) that captures subcutaneous capillaries seen by the microscope lens (19); A monitor 26 showing images of capillaries taken by the CCD camera 20; A computer 22 that analyzes the subcutaneous blood flow state using the information of the capillaries by a pre-stored analysis program; And in order to prevent diffuse reflection of light applied to the subcutaneous layer, MG oil 24, which is a biological sample fixing agent, is applied before light is incident on the skin.

However, the technique disclosed in Korean Patent Publication No. 10-2001-0010730 has the advantage of directly analyzing the capillaries and analyzing the blood flow state of the capillaries. However, the MG oil is used because the capillaries are directly photographed through visible light. There is a hassle that needs to be additionally applied, and since the capillaries located inside the non-transparent skin are photographed with visible light, accurate photographing is difficult.

Korea Patent Publication 10-2001-0010730 Korean Registered Patent 10-1069489

The present invention has been devised to solve the above-mentioned problems, and the object of the present invention is to provide an objective lens on an upper part of a sample fixing unit for fixing a finger or the like, and a light source is provided on the side of the objective lens. A blood flow measuring device that can be visually observed and diagnosed peripheral blood vessels (capillaries) located subcutaneously, even when the fixed chain MG oil is not used by forming the LED to irradiate the blood flow measuring device to more easily analyze blood flow, etc. of peripheral blood vessels Is to provide

Further, another object of the present invention is further provided with a pinhole portion inside the head portion including an objective lens, a condenser lens, and a photographing portion, wherein the pinhole portion is positioned on the secondary imaging surface of the objective lens, and the pinhole portion has pinholes of various diameters. It is to provide a blood flow measuring device capable of more accurately measuring the state of blood flow by minimizing the depth of focus by obtaining a sharp image by adjusting the size of the pinhole according to the depth of focus formed by the objective lens.

The present invention for solving this problem;

In the blood flow measuring apparatus comprising a sample holder on which the object is placed and a head portion provided on the top of the sample holder, the head portion photographs an objective lens positioned at the bottom and an enlarged image through the objective lens It characterized in that it comprises a photographing unit and a condensing lens positioned at the lower portion of the photographing unit to collect an enlarged image from the objective lens.

Here, a light source unit for irradiating light to the object is provided, wherein the light source unit comprises a first rotating plate rotatably provided outside the objective lens and a plurality of light sources installed at the edges of the first rotating plate. do.

At this time, the light source is characterized in that it consists of an LED lamp that irradiates infrared rays.

In addition, a pinhole device is provided between the objective lens and the condenser lens, and the pinhole device is characterized in that a plurality of pinholes are formed in a circumferential direction on a circular second rotating plate.

Here, the pinhole device is characterized in that it is located on the secondary imaging surface of the objective lens.

On the other hand, the light source is characterized in that the LED lamp for irradiating infrared light and the LED lamp for irradiating visible light are alternately installed.

At this time, the lower portion of the photographing unit is further provided with a prism for separating visible light, and the side of the photographing unit is provided with an auxiliary photographing unit for photographing visible light separated through the prism.

In addition, a bracket is provided at the edge of the rotating plate to control the vertical angle of the light source.

According to the present invention of the above configuration, an objective lens is provided on an upper portion of a sample fixing unit for fixing a finger or the like, and a light source is provided on the side of the objective lens, and the light source is formed of an LED that irradiates infrared rays and is fixed MG. Even if oil is not used, peripheral blood vessels (capillaries) located subcutaneously can be visually observed and diagnosed, and thus it is possible to more easily analyze blood flow of peripheral blood vessels.

Further, the present invention is further provided with a pinhole portion inside the head portion including an objective lens, a condenser lens, and a photographing portion, wherein the pinhole portion is positioned on the secondary imaging surface of the objective lens, and the pinhole portion is formed with pinholes of various diameters. By adjusting the size of the pinhole according to the depth of focus formed by the objective lens, it is possible to obtain a clear image by minimizing the depth of focus, thereby more accurately measuring the state of blood flow.

1 is a conceptual diagram of a conventional blood flow measurement device.
2 is a perspective view of a blood flow measuring device according to the present invention.
3 is a conceptual diagram of an apparatus for measuring blood flow according to the present invention.
4 is a conceptual diagram of a light source unit of the blood flow measuring apparatus according to the present invention.
5 is a conceptual diagram of a blood flow measurement apparatus according to another embodiment of the present invention.
6 is a conceptual diagram of a light source unit according to the embodiment of FIG. 5.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals are used for the same components in the drawings, and duplicate descriptions for the same components are omitted. And, it should be understood that the present invention can be implemented in many different forms and is not limited to the described embodiments.

2 is a perspective view of a blood flow measuring device according to the present invention, FIG. 3 is a conceptual diagram of a blood flow measuring device according to the present invention, FIG. 4 is a conceptual view of a light source unit of the blood flow measuring device according to the present invention, and FIG. A conceptual diagram of a blood flow measuring apparatus according to another embodiment, and FIG. 6 is a conceptual diagram of a light source unit according to the embodiment of FIG. 5.

The present invention relates to a blood flow measurement device, as shown in FIGS. 2 to 4, the configuration of which is provided in the main body 100 and the main body 100, the sample holder 130 and the sample holder 130 on which the object is placed. ) Comprises a head portion 200 for photographing an object fixed to the main body 100 of the pedestal 110 and the pedestal 110 supporting the lower portion of the sample holder 130 on which the object is placed. It is formed on one side and consists of a support 120 for supporting the head unit 200.

Here, the sample holder 130 is located on the upper portion of the pedestal 110 and is installed to be moved back and forth, left and right, and the support 120 is vertically supported 122 and vertically installed on one side of the pedestal 110 It is installed to be movable up and down on the support 122 and is made of a horizontal support 124 at which the head part 200 is coupled.

At this time, a sample fixing portion 132 on which an object such as a finger is seated is formed on an upper surface of the sample fixing plate 130, and a fixing groove 134 on which the object is inserted and fixed is formed at the center of the sample fixing portion 132. do.

So, by adjusting the front, rear, left and right positions in a state in which an object, such as a finger, is fixed to the sample holder 130, the head portion 200 is moved up and down through the support 120 to adjust the focus so that the skin of a finger, etc. It is possible to stably photograph the inner peripheral blood vessels.

In addition, the head unit 200 is a photographing unit for photographing an enlarged image through the objective lens 210 and the objective lens 210 formed at the closest position to the object fixed to the top of the sample holder 130. 220) and a condenser lens 230 positioned below the photographing unit 220 to collect an enlarged image from the objective lens 210.

Here, the head unit 200 is provided with a light source unit 300 for irradiating light to an object, and the light source unit 300 includes a first rotating plate 310 rotatably provided outside the objective lens 210. It consists of a plurality of light sources 320 installed on the lower surface of the edge of the first rotating plate (310).

At this time, the light source 320 is made of a first light source 322 that is an LED lamp that irradiates infrared rays, and the photographing unit 220 is made of an infrared sensor that senses infrared rays.

Thus, in the present invention, when photographing peripheral blood vessels formed on a finger or the like, since infrared rays are used, it is possible to clearly photograph peripheral blood vessels located inside the skin without additional configuration.

That is, conventionally, when photographing peripheral blood vessels using visible light as shown in FIG. 1, since the peripheral blood vessels are located inside the skin, it is difficult to directly photograph them, and then, after applying the fixing agent MG oil 24, photographing By using the refractive index, the NA value of the objective lens is increased to observe only a simple shape of the blood vessel.

On the other hand, in the present invention, since short wavelength infrared rays (SWIR, 750nm to 2500nm) and medium wavelength infrared rays (MWIT, 3000 to 6000nm) are used, the wavelength is longer than that of visible light, and thus the transmittance is high for translucent skin. By shooting without using 24), it is possible not only to proceed with the shooting more easily, but also to more clearly shoot the flow of peripheral blood vessels and blood flow under the skin.

Therefore, since the infrared rays are used, the permeability to the skin is good, and the deformation of the blood vessels located under the skin, the shape of the red blood cells, and the speed of the blood flow can be clearly captured. And various diseases related to thickness, distribution, and the like, in the initial diagnosis process.

Meanwhile, a pinhole device 240 is provided between the objective lens 210 and the condenser lens 230, wherein the pinhole device 240 has a second rotating plate 242 and a second rotating plate 242 formed in a disk shape. ) Consists of a plurality of pinholes 244 formed at regular intervals along the circumferential direction of the edge portion.

Here, the pinhole device 240 is positioned on the secondary imaging surface of the objective lens 210, so that the imaging unit 220 can take a clearer image.

That is, the objective lens 210 has an advantage of enlarging blood vessels in the subcutaneous body, but the depth of the image is deep, so the sharpness of the image deteriorates.

Therefore, in the present invention, by placing the pinhole device 240 in which a plurality of pinholes 244 are formed on the secondary imaging surface of the objective lens 210, the deep depth of the objective lens 210 is as low as possible, thereby excitation light. Only a thin monolayer of the image can be taken by the imaging unit 220 to obtain a clearer image.

On the other hand, a plurality of pinholes 244 are formed in the second rotating plate 242, wherein the plurality of pinholes 244 are 0.5 μm, 1 μm, 2 μm, 3 μm, 4 μm, 5 μm, 6 μm, respectively. It consists of 7㎛, 8㎛, 9㎛, 10㎛ diameter, it is possible to clearly adjust the image quality by setting the pinhole 244 of the appropriate size depending on the situation.

And, as another embodiment of the present invention, as shown in Figures 5 and 6, the head unit 200 for photographing an object is an object formed in the position closest to the object fixed to the top of the sample holder 130 The lens 210 and the photographing unit 220 for photographing an enlarged image through the objective lens 210 and the condensing lens positioned below the photographing unit 220 to collect the enlarged image from the objective lens 210 (230).

Here, the head unit 200 is provided with a light source unit 300 for irradiating light to an object, and the light source unit 300 includes a first rotating plate 310 rotatably provided outside the objective lens 210. It consists of a plurality of light sources 320 installed on the lower surface of the edge of the first rotating plate (310).

At this time, the light source 320, the first light source 322, which is an LED lamp that irradiates infrared light, and the second light source 324, which is an LED lamp that irradiates visible light, are alternately installed. In addition to being able to take blood vessels, skin tissues, etc. in addition to peripheral blood vessels can also be taken using visible light.

Meanwhile, a prism 260 is further provided between the photographing unit 220 and the condensing lens 230. The prism 260 transmits infrared rays from among infrared rays and visible rays that have passed through the objective lens 210, and is visible. The rays are separated into the sides.

At this time, an inner upper portion of the head portion 210 is provided with a photographing unit 220 for sensing and photographing infrared rays, and an auxiliary photographing unit 250 for photographing visible light is provided on a side of the photographing unit 220. However, the auxiliary photographing unit 250 is made of a CCD sensor capable of photographing visible light.

So, the infrared rays are transmitted by the prism 260 to clearly photograph blood vessels, etc. located inside the skin in the imaging unit 220, and visible light is separated into the side, so that the skin in the auxiliary imaging unit 250 The surface of the camera can be clearly photographed, and various parts can be diagnosed as well as blood flow.

In addition, as shown in FIG. 6, the light source unit 300 is provided with a first light source 322 irradiating infrared rays to the edge of the first rotating plate 310 and a second light source 324 irradiating visible light. , The first light source 322 and the second light source 324 are combined using an angle-adjustable bracket 330.

So, basically, the first light source 322 and the second light source 324 are set to 45 °, but the angle can be adjusted in the range of 30 to 60 ° according to the object to obtain a clear image.

Here, the main body 100 is provided with a control unit (not shown) for controlling the respective components to control the intensity and angle of the light source 300 in the control unit, and the appropriate pinhole 244 in the pinhole device 240 Select to enable clear images.

At this time, the control unit controls each component according to a setting value set by a user through a control panel panel (not shown) provided separately.

On the other hand, both the first light source 322 for irradiating infrared light and the second light source 324 for irradiating visible light may be used, but depending on the situation, only blood flow may be measured or only skin may be measured, so that the control of the control unit is performed. Through this, the light source 300, the photographing unit 220, and the auxiliary photographing unit 250 are appropriately controlled.

Then, in a special case, the first light source 322 and the second light source 324 alternately installed at the edges of the first rotating plate 310 are sequentially operated along the circumferential direction, thereby assisting the imaging unit 220. The photographing unit 250 is controlled to photograph a corresponding image.

Thus, it is possible to photograph blood vessels and skin tissues of various states by light irradiated from various angles, thereby enabling accurate diagnosis.

In addition, the head portion 200 is installed at the end of the horizontal support 124 that moves up and down along the vertical support 122, although not shown in the drawing, a separate angle is adjusted at the end of the horizontal support 124 A portion (not shown) is further provided so that the angle of the head portion 200 can be adjusted, so that objects positioned at the bottom can be photographed from various angles.

Although the preferred embodiment of the present invention has been described above, the scope of the present invention is not limited to this, and the spirit of the present invention is applied to the scope of the present invention to the extent that it is substantially equivalent to the embodiment of the present invention. Various modifications can be made by those skilled in the art to which the present invention pertains without departing from the scope.

The present invention relates to a blood flow measuring device, and more specifically, when analyzing blood flow in peripheral blood vessels located on a finger or the like, by using infrared rays, it is possible to shoot subcutaneous blood flow without applying MG oil, as well as a clearer image. It relates to a blood flow measurement device that can be taken to accurately diagnose the condition of the blood flow.

100: body 110: stand
120: support 130: sample holder
200: head 210: objective lens
220: photographing unit 230: condensing lens
240: pinhole device 242: second rotating plate
244: pinhole 250: auxiliary filming unit
260: prism 300: light source unit
310: first rotating plate 320: light source
330: bracket

Claims (8)

In the blood flow measuring device comprising a sample holder and the head portion to be provided on top of the sample holder to place the object,
The head portion and the objective lens located at the bottom,
A photographing unit configured to photograph an enlarged image through the objective lens, and comprises an infrared sensor that detects infrared rays.
It is located at the lower portion of the photographing unit and comprises a condensing lens that collects an enlarged image from the objective lens.
In the head portion,
A light source unit for irradiating light to the object is provided,
The light source unit includes a first rotating plate rotatably provided outside the objective lens,
It consists of a plurality of light sources installed on the edge of the first rotating plate,
At the edge of the first rotating plate is provided a first light source for irradiating infrared light and a second light source for irradiating visible light, and the first light source and the second light source are combined using a bracket capable of adjusting the up and down angle,
In the first light source, an LED lamp that irradiates infrared light and an LED lamp that irradiates visible light as a second light source are alternately installed,
A pinhole device is provided between the objective lens and the condenser lens,
A prism for separating visible light is further provided at a lower portion of the photographing unit,
On the side of the photographing unit, an auxiliary photographing unit made of a CCD sensor for photographing visible light separated through a prism is provided,
The infrared sensor is a short-wavelength infrared (SWIR, 750nm ~ 2500nm) and medium-wavelength infrared (MWIT, 3000 ~ 6000nm) blood flow measuring device characterized in that it is used.
delete delete According to claim 1,
A pinhole device is provided between the objective lens and the condenser lens,
The pinhole device is a blood flow measuring device characterized in that a plurality of pinholes are formed in a circumferential direction on a circular second rotating plate.
The method of claim 4,
The pinhole device is a blood flow measuring device, characterized in that located on the secondary imaging surface of the objective lens.
delete delete delete

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