KR101348063B1 - Vein-viewer System using the Difference of Infrared Ray Absorption Rate Based on Oxygen Saturation - Google Patents

Abstract

The present invention relates to a system for finding veins for venipuncture, so that the hemoglobin changes in the infrared absorption rate according to oxygen saturation, so that the camera module is equipped with an infrared filter capable of taking a wavelength of 720 to 740 nm, and processes the pictures taken from the camera module. Finding the vein of the human body using the infrared absorption difference according to the oxygen saturation degree composed of a microprocessor, a projector for displaying the processed image again on the human skin, and a monitor for viewing the image signal processed by the microprocessor on the screen It is about the system.
According to the system for finding a vein of the human body using the infrared absorption rate difference according to the oxygen saturation degree of the present invention, it is easy to find a vein, and an intravenous injection can be performed exactly once at the found vein to insert a needle several times to find a blood vessel. There is an effect that can be prevented from touching the patient's nerves and causing health problems.

Description

Vein-viewer System using the Difference of Infrared Ray Absorption Rate Based on Oxygen Saturation}

The present invention relates to a system for finding veins for venipuncture, and more specifically, because hemoglobin changes the absorption of infrared rays according to oxygen saturation, a camera module equipped with an infrared filter capable of taking a wavelength of 720 to 740 nm, and a camera module. The difference in infrared absorption rate according to oxygen saturation is composed of a microprocessor for processing the photograph, a projector for displaying the processed image on the human skin, and a monitor for viewing the image signal processed by the microprocessor on the screen. It relates to a system for finding veins in the human body.

In general, the blood vessels of human beings vary in distribution and are widely distributed in each part of the human body.

In order to collect the blood required from the blood vessel in the clinical pathology laboratory or to accurately administer the injection, conventionally, a skilled doctor or nurse finds the required vein blood vessel and collects the blood or administers the injection.

In particular, in the case of injection treatment related to drug injection, a drug is injected into a blood vessel through a syringe for the prevention and treatment of various diseases, and it is faster in the administration of drugs compared to the method of internal medicine or external use. It is one of the effective treatment means which has the advantage that it is possible, the point which the administration of a medicine can also be given to the patient who cannot take it.

In most cases, the injection of a drug or the collection of blood is performed by injecting or collecting a blood by directly handling a syringe, and thus, highly skilled treatment is essential for safer and more accurate treatment.

However, it takes a lot of training time to train such an experienced doctor or nurse, and a bigger problem is that it takes a very long time to find veins in the blood depending on the characteristics of the subject.

In addition, sometimes a problem such as touching the nerve occurs by inserting the injection needle several times to find the blood vessels.

This can lead to serious health problems or even death if the nerves are touched or broken.

In addition, during the collection of blood, a nurse or doctor may be infected by blood, including pathogens, during an operation such as collecting blood from a subject using a blood injection.

Published in the Subcutaneous Vein Pattern Recognition Apparatus and Method of Patent Application No. 10-2010-0033371, the light irradiation part including a near-infrared light emitting element; An image acquisition unit including a lens and an image sensor configured to detect light reflected by the skin and subcutaneous tissue and convert the light into an image signal; A microprocessor configured to calculate illuminance from an image signal obtained by the image acquisition unit to adjust light irradiation intensity of the light irradiation unit and light reception sensitivity of the image acquisition unit; Since the subcutaneous vein pattern recognition device including the display unit displaying the image signal received from the microprocessor or the infrared light must be irradiated, the image is not bright and there is a problem that it is not easy to distinguish the vein from the artery.

In addition, published as an automatic injection device for blood collection and drug injection is a sensor means for irradiating near infrared to the arm area for the selection of vein vessels, and after converting the reflected waveform of the near infrared into real-time image signal At this time, an image camera means for providing a signal, a microprocessor means for selecting an optimal vein vessel after processing and determining the provided image signal and outputting a signal for controlling the scan driving means, and receiving a control signal from the microprocessor means The injection drive means for inserting an injection needle into a selected vein blood vessel and the injection desorption means for automatically removing the used injection needle are constituted.

The present invention is a camera module equipped with an infrared filter capable of taking a wavelength of 720 ~ 740nm, a microprocessor for processing a picture taken by the camera module, a projector for displaying the processed image back on the human skin, and processing in the microprocessor The present invention provides a system for finding a vein of a human body using a difference in infrared absorption rate according to oxygen saturation composed of a monitor configured to allow a user to view a video signal on a screen.

The system for finding veins of the human body of the present invention includes a camera module for photographing a low oxygen saturation vein among human tissues, a microprocessor for receiving and processing image data photographed by the camera module, and transmitting an image signal; The projector is configured to display the image signal processed by the above on the skin of the human body, and a monitor to view the image signal processed by the microprocessor on the screen.

The camera module includes a camera body; A lens mounted on the camera body to form a passage through which light passes, refracting absorbed light to form an image, and having an aperture attached to adjust an amount of transmitted light; An infrared filter attached to the front surface of the lens, the infrared filter absorbing only a wavelength of light or more; The camera body is fixed to the bracket to prevent shaking when taking a picture.

The camera body has a structure in which a hot mirror filter or an IR cut-off filter, which is installed in front of a CCD or CMOS sensor that prevents infrared rays from being transmitted, is not installed. Is to absorb only the wavelength of light 720 ~ 740nm.

The lens has a focal length of 50 mm and an aperture dimension of f1.4 to f22.

The problem to be solved of the present invention can be solved by a system for finding veins of the human body using the infrared absorption rate difference according to the oxygen saturation.

According to the system for finding a vein of the human body using the infrared absorption rate difference according to the oxygen saturation degree of the present invention, it is easy to find a vein, and an intravenous injection can be performed exactly once at the found vein to insert a needle several times to find a blood vessel. There is an effect that can be prevented from touching the patient's nerves and causing health problems.

1 is a system diagram according to the system for finding veins of the human body using the difference in infrared absorption rate according to oxygen saturation

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, 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 addition, the terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of the user or operator, and the definition is based on the "infrared absorptivity difference according to oxygen saturation degree" according to the present invention. It should be made based on the contents throughout this specification describing the "system for finding veins of the human body".

The system for finding veins of the human body using the infrared absorption rate difference according to the oxygen saturation degree of the present invention includes a camera module (1) for photographing a low oxygen saturation vein among tissues of the human body, and image data photographed by the camera module (1). A microprocessor (2) which receives and processes the image signal and outputs an image signal, a projector (3) which displays the image signal processed by the microprocessor (2) on the skin of the human body, and the image signal processed by the microprocessor. It consists of a monitor 4 which makes it visible on the screen.

The camera module 1 includes a camera body 11; A lens 12 mounted on the camera body to form a passage through which light passes and refracting absorbed light to form an image, and having an aperture attached to adjust an amount of transmitted light; An infrared filter attached to the front surface of the lens and absorbing only a predetermined size of light wavelength; It is composed of a pedestal 14 for fixing the camera body to prevent shaking when taking a picture.

The camera body has a structure in which a hot mirror filter or an IR cut-off filter, which is installed in front of a CCD or CMOS sensor that prevents infrared rays from being transmitted, is not installed. Only absorbs light having a wavelength of 720 to 740 nm, and the lens 12 preferably has a focal length of 50 mm and an aperture dimension of f1.4 to f22.

Hereinafter, with reference to the drawings a preferred embodiment of the "system for finding a human vein utilizing the difference in infrared absorption rate according to the oxygen saturation degree" according to the present invention will be described in detail. The following examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention.

1 is a system diagram according to a system for finding veins of a human body using a difference in infrared absorptivity according to oxygen saturation.

As shown in FIG. 1, a system for finding a vein of a human body using an infrared ray absorption rate difference according to an oxygen saturation degree of the present invention includes a camera module 1 photographing a vein having a low oxygen saturation rate among tissues of the human body, and the camera module. A microprocessor (2) which receives and processes the image data photographed in (1) and sends out an image signal, a projector (3) which displays the image signal processed by the microprocessor (2) again on the skin of a human body; It is composed of a monitor (4) for viewing the image signal processed by the microprocessor on the screen.

The camera module 1 includes a camera body 11; A lens 12 mounted on the camera body to form a passage through which light passes and refracting absorbed light to form an image, and having an aperture attached to adjust an amount of transmitted light; An infrared filter (13) attached to the front surface of the lens to absorb only light having a predetermined wavelength of light; It is composed of a pedestal 14 for fixing the camera body to prevent shaking when taking a picture.

The inside of the camera body has a structure in which a hot mirror filter or an IR cut-off filter, which is installed in front of a CCD or CMOS sensor, is not installed to prevent infrared rays from being transmitted through the camera body. It should absorb only the wavelength of light between 720 and 740 nm.

Sunlight is a mixture of ultraviolet, infrared, and visible light, and the general objects that people see with their eyes vary depending on the material of the objects.

 Visible light is the light visible to the human eye, and it is washable, main, oar, candle, wave, man, and light.Infrared light is red (light) outside (outside) light (ray). Invisible, it has the energy to raise the temperature, ultraviolet light is invisible light (ray) outside the purple light (purple), it is invisible, and has the energy to sterilize.

Image sensors (CCDs, CMOS, and chips that convert digital images through lenses) in most digital cameras are sensitive to ultraviolet light, visible light, and infrared light, which reacts very weakly.

By the way, digital cameras usually respond to infrared rays, so it is possible to take infrared photos, but only visible light is taken. The reason is that a filter is installed in front of the image sensor to block infrared light so that only visible light passes.

This filter is called a hot mirror filter or IR cut-off filter.

In other words, all digital cameras using CCD or CMOS are equipped with a hot mirror filter or IR cut-off filter in front of the sensor.

The camera body 11 of the present invention should be a camera body without a filter that prevents infrared rays from being transmitted, that is, without a hot mirror filter or IR cut-off filter.

Hemoglobin, a pigment protein contained in a large amount of red blood cells, changes the absorption rate of infrared rays according to the degree of oxygen saturation. Is the highest when

The oxygen saturation is a value measuring the degree of binding of oxygen hemoglobin. The volume ratio of oxygenated hemoglobin to the effective hemoglobin, in a broad sense, is the percentage of the oxygen content and the maximum oxygen content in the blood.

Therefore, the camera body 11 is modified so that only light having a wavelength of 720 to 740 nm passes and all other lights are filtered out, so that the vein can be effectively found. Once done, you can effectively find veins.

In order to make the vein appear more easily through the program called MATLAB to make the vein appear more effectively, even if the vein is invisible to the naked eye, the vein is effectively You can find it.

The projector 3 uses a pico projector, which is a micro projector occupying the smallest projector position, uses a 0.17 inch DLP image module at 480 × 320 resolution, contrast ratio of 1000 to 1, and brightness of 7.9 lumens or more. Lumens are preferred, and may be made in spectacles.

The lens 12 has a focal length of 50 mm and an aperture size of f1.4 to f22. The reason why a person basically identifies an object based on binocular (double eye) and when looking at the object with both eyes is accompanied by the color and texture of the object. We get information about the sense of distance and space, and the reason we don't get perspective when we see things with one eye is different from when we see things with both eyes. The angle of view that humans can identify varies from person to person, but is between 45 ° and 52 °. Therefore, using a 50mm (47 °) focal length lens that is closest to the human viewing angle, It is good to display above the skin.

According to the system for finding a vein of the human body using the infrared absorption rate difference according to the oxygen saturation degree of the present invention, it is easy to find a vein, and an intravenous injection can be performed exactly once at the found vein to insert a needle several times to find a blood vessel. There is an effect that can be prevented from touching the patient's nerves and causing health problems.

1: Camera Module 11: Camera Body
12 lens 13 infrared filter
14: Tripod 2: microprocessor
3: projector 4: monitor

Claims (3)

A camera module 1 for photographing veins with low oxygen saturation among human tissues, a microprocessor 2 for receiving and processing image data photographed by the camera module 1, and outputting an image signal; A projector 3 for displaying the image signal processed in 2) again on the skin of the human body, and a monitor 4 for viewing the image signal processed in the microprocessor 2 on a screen,
The camera module 1 includes a camera body 11;
A lens 12 mounted on the camera body to form a passage through which light passes and refracting absorbed light to form an image, and having an aperture attached to adjust an amount of transmitted light;
An infrared filter attached to the front surface of the lens and absorbing only a predetermined size of light wavelength;
It consists of a pedestal 14 for fixing the camera body to prevent shaking when taking a picture,
The inside of the camera body 11 has a structure in which a hot mirror filter or an IR cut-off filter is removed to prevent infrared rays from being transmitted.
The infrared filter 13 absorbs only the wavelength of light 720 ~ 740 nm,
The lens 12 has a focal length of 50 mm and an aperture dimension of f1.4 to f22,
The projector 3 uses a pico projector, which is a micro projector, uses a 0.17 inch DLP image module at 480 × 320 resolution, and has a contrast ratio of 1000 to 1 and a brightness of 7.9 to 20 lumens. System for finding vein of human body using difference of infrared absorption rate
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