KR20160050529A - Apparatus for projecting blood vessel using infrared rays - Google Patents

Apparatus for projecting blood vessel using infrared rays Download PDF

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Publication number
KR20160050529A
KR20160050529A KR1020140148908A KR20140148908A KR20160050529A KR 20160050529 A KR20160050529 A KR 20160050529A KR 1020140148908 A KR1020140148908 A KR 1020140148908A KR 20140148908 A KR20140148908 A KR 20140148908A KR 20160050529 A KR20160050529 A KR 20160050529A
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KR
South Korea
Prior art keywords
blood vessel
image
distance
skin
module
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Application number
KR1020140148908A
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Korean (ko)
Inventor
장영진
Original Assignee
주식회사 엔씨테크론
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Priority to KR1020140148908A priority Critical patent/KR20160050529A/en
Publication of KR20160050529A publication Critical patent/KR20160050529A/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/42—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for desensitising skin, for protruding skin to facilitate piercing, or for locating point where body is to be pierced
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/36—Microscopes arranged for photographic purposes or projection purposes or digital imaging or video purposes including associated control and data processing arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes

Abstract

The present invention provides an apparatus for projecting a blood vessel using infrared light, which is capable of more accurately photographing a blood vessel and improving projection resolution. According to the present invention, the apparatus for projecting a blood vessel using infrared light comprises: an infrared light irradiation module which irradiates infrared light toward a skin: a camera module which captures an image of the infrared light irradiated from the infrared light irradiation module and reflected from the skin; an image processing module which generates a blood vessel image by extracting a blood vessel from the image of the infrared light captured by the camera module; a projection module which projects the blood vessel image generated by the image processing module onto the skin; a distance sensor which measures a distance from the skin; and a main control unit which, when the measurement result of the distance sensor is that the distance from the skin is within a preset reference distance range, controls the camera module to execute an autofocusing function based on the distance measured by the distance sensor and controls the image processing module and the projection module to project the blood vessel image based on the image of the infrared light captured in an autofocusing state. Therefore, it is possible to allow an operator to more easily find an appropriate distance and to more easily acquire a clearer image of infrared light through the auto focusing function, whereby a clearer blood vessel image can be projected.

Description

TECHNICAL FIELD [0001] The present invention relates to a blood vessel projection apparatus using infra-

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a blood vessel projection apparatus using infrared rays, and more particularly, to a blood vessel projection apparatus using infrared rays with more accurate imaging of a blood vessel and improved projection sharpness.

In the medical field, when inserting a needle into a blood vessel located under the skin of a patient, the band is wrapped near the site to expand the blood vessel so that the blood vessel can be visually confirmed, and then the needle is inserted.

However, the medical practice for inserting injections into blood vessels is mainly nurses. Especially, novice nurses are inconveniencing patients when injecting injections into blood vessels because about 50% of patients have had at least one injection stroke.

In particular, in patients with obesity, the elderly, children, and patients who have narrowed blood vessels due to multiple procedures, it is often difficult to find blood vessels by the naked eye and it takes a lot of time to find the blood vessels. .

Accordingly, techniques for photographing a blood vessel of a patient using a camera and projecting the blood vessel to the skin of a patient to thereby facilitate the procedure of inserting the injection needle have been proposed. For example, a technique of infrared ray, Device is being proposed.

There is an unoxidized hemoglobin component in the blood inside the blood vessel, and hemoglobin has a characteristic of absorbing light in the near infrared ray wavelength band. By using the optical characteristics of hemoglobin, near infrared rays are irradiated to the skin of a patient, and images are taken with an infrared camera to obtain images having darker blood vessels relative to skin.

The 'needle guide device' disclosed in Japanese Patent Publication No. 4517004 discloses a technique of displaying a blood vessel image and a needle together on a monitor, in order to help the practitioner's operation using the blood vessel image thus obtained. In Korean Patent Registration No. 0734097, 'Image System Using Infrared Diffusion' discloses a technique of projecting a blood vessel image onto a patient's skin using a projector.

Such techniques are based on accurately extracting a blood vessel in an image taken by an infrared camera and then accurately displaying or projecting it again. In case of inaccurate photographing, display or projection, incorrect blood vessel information is provided to an operator Is an important technical factor in the techniques because it causes the insertion of the needle in the wrong direction.

Accordingly, it is an object of the present invention to provide an apparatus for projecting a blood vessel using infrared rays, which has improved imaging of a blood vessel and improved projection sharpness.

According to the present invention, the above object can be achieved by an infrared ray irradiation module for irradiating infrared rays toward the skin; A camera module for photographing the infrared ray irradiated from the infrared ray irradiation module and reflected from the skin side; An image processing module for extracting a blood vessel from the infrared image taken by the camera module and generating a blood vessel image; A projection module for projecting the blood vessel image generated by the image processing module to the skin; A distance sensor for measuring the distance to the skin; When the distance to the skin is within a predetermined reference distance range based on the measurement result of the distance sensor, the camera module controls the camera module to operate the auto focusing function based on the measured distance measured by the distance sensor And a main controller for controlling the image processing module and the projection module so that the blood vessel image is projected based on the infrared image captured in the auto focusing state.

Here, the distance sensor may include a laser distance sensor.

Further, the main control unit may control the projection module so that the auto-zoom function of the projection module operates based on the measurement distance measured by the distance sensor.

And an output unit for outputting a predetermined alarm; The main control unit may control the output unit to output an alarm when the distance to the skin is within the reference distance range based on the measurement result of the distance sensor.

The output unit may include at least one of a speaker for outputting sound, an alarm lamp for being turned on and off under the control of the main control unit, and a display unit for displaying an image.

The measurement distance may be displayed on the display unit.

According to the present invention, according to the present invention, in order to find the distance to the skin suitable for projecting the blood vessel image, the operator firstly moves the blood vessel projection apparatus to the reference distance range using the laser distance sensor, The operator can more easily find an appropriate distance and obtain an easier and clearer infrared image through the auto focusing function.

In addition, thanks to the auto zoom function of the projection module, a clear vascular image can be projected onto the patient's skin while matching the actual blood vessel.

1 is a view showing an example of using a blood vessel projection apparatus using infrared rays according to the present invention,
2 is a control block diagram of a blood vessel projection apparatus using infrared rays according to the present invention,
3 is a view showing an example of a configuration of a camera module and a projection module of a blood vessel projection apparatus using infrared rays according to the present invention,
4 and 5 are views for explaining a method of operating a blood vessel projection apparatus using infrared rays according to the present invention.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a view showing an example of using a blood vessel projection apparatus 100 using infrared rays according to the present invention, and FIG. 2 is a control block diagram of a blood vessel projection apparatus 100 using infrared rays according to the present invention.

1 and 2, a blood vessel projection apparatus 100 according to the present invention includes an IR irradiation module 120, a camera module 130, an image processing module 140, a projection module 150, A sensor 160, and a main control unit 110.

The infrared ray irradiation module 120 irradiates infrared rays toward the patient's skin. In the present invention, it is exemplified that the infrared ray irradiation module 120 irradiates near-infrared rays of a wavelength band that can be absorbed by hemoglobin in blood. The infrared ray irradiation module 120 according to the present invention is an example of using an LED light source.

The camera module 130 photographs infrared rays irradiated from the infrared ray irradiation module 120 and reflected from the skin side. 1, when the infrared ray irradiation module 120 of the vascular projection apparatus 100 irradiates near infrared rays to the skin side of a patient, infrared rays are reflected in skin tissues other than blood vessels, but near- It is absorbed by the internal hemoglobin. Accordingly, the infrared ray reflected from the skin side of the patient is formed darker than other places where the blood vessel is located, and the blood vessel can be extracted when the camera module 130 acquires the infrared ray image.

Here, the camera module 130 according to the present invention is provided in a form capable of operating an auto focusing function. Referring to FIG. 3, the camera module 130 according to the present invention may include an image sensor unit 131 and an auto focusing unit 132.

The image sensor unit 131 is composed of an image sensor such as CMOS or the like and detects infrared rays reflected from the skin side. The auto focusing unit 132 operates to perform an auto focusing function of the camera under the control of the main control unit 110. [ Accordingly, the camera module 130 can capture an infrared image under the control of the main control unit 110 in a state in which the focusing is automatically adjusted.

The image processing module 140 extracts blood vessels from the infrared image captured by the camera module 130. As described above, since the blood vessel portion is darkened in the infrared image, the image processing module 140 can extract the blood vessel by recognizing the dark portion of the infrared image as a blood vessel and recognizing the other portion as skin.

The image processing module 140 generates a blood vessel image using the blood vessel portion extracted from the infrared image. Here, various known techniques may be applied to a method of extracting a blood vessel from an infrared image and generating a blood vessel image by the infrared processing module.

The projection module 150 projects the blood vessel image generated by the image processing module 140 to the skin. In this case, when the blood vessel image on the blood vessel image is irradiated to the skin of the patient with a visible light image recognizable by the human's eyes, the blood vessel below the skin appears on the skin surface as shown in FIG.

The laser distance sensor 160 measures the distance to the skin from the vascular projection apparatus 100 according to the present invention. In the present invention, the laser distance sensor 160 is applied. However, it is needless to say that another type of distance sensor capable of measuring the distance to the skin, such as an ultrasonic wave, is applicable.

The main control unit 110 controls the functions of the respective components of the blood vessel projection apparatus 100 according to the present invention. The main control unit 110 determines whether the distance to the skin is within a set reference distance range based on the measurement result of the laser distance sensor 160. [

In this case, when the distance to the skin is within the reference distance range, the main controller 110 controls the camera module 130 so that the camera module 130 operates the auto focusing function based on the measured distance measured by the distance sensor. And controls the focusing unit 132.

The main control unit 110 controls the image processing module 140 and the projection module 150 so that the blood vessel image is projected based on the infrared image captured in the auto focusing state.

Meanwhile, the projection module 150 of the vascular projection apparatus 100 according to the present invention may be provided to be operable by an auto-zoom function. 3, the projection module 150 may include an image projection unit 151, a projection lens 152, and a zoom driving unit 153.

The image projection section 151 projects the blood vessel image generated by the image processing module 140 onto the skin surface of the patient. At this time, the blood vessel image projected from the image projection unit 151 is projected onto the skin surface of the patient through the projection lens 152. The size of the screen can be adjusted at a uniform projection distance by driving the zoom driving unit 153 .

Here, the main control unit 110 controls the zoom driving unit 153 to operate the auto zoom function of the projection module 150 based on the measurement distance measured by the distance sensor, It is possible to adjust the size of the screen on which the blood vessels can be matched.

Referring again to FIG. 2, the blood vessel projection apparatus 100 according to the present invention may include an output unit 170 that outputs a predetermined alarm. Here, the output unit 170 may be provided in the form of a speaker for outputting sound, an alarm lamp for being turned on / off under the control of the main control unit 110, a display unit for displaying an image, 170 may be provided together.

The main control unit 110 controls the output unit 170 to output an alarm when the distance to the skin is within the reference distance range based on the measurement result of the laser distance sensor 160. As a result, So that it is possible to confirm whether the distance between the apparatus 100 and the skin is within the reference distance range.

Hereinafter, a method of operating the blood vessel projection apparatus 100 according to the present invention will be described in detail with reference to FIGS. 4 and 5. FIG.

First, the practitioner can perform the distance measurement by the laser distance sensor 160 while the power of the vascular projection apparatus 100 according to the present invention is turned on. The distance from the skin to the skin is measured by the laser reflected from the skin (S41).

5, in the course of moving the apparatus 100 from the position of d1 distance to the skin side, the main controller 110 controls the current distance of the blood vessel measuring apparatus, that is, It is determined whether the measured distance measured is within the reference distance range dr (S42).

If it is determined that the measurement distance is within the reference distance range dr, for example, as shown in FIG. 5, the main control unit 110 may output the output unit 170 (S43). For example, if the output unit 170 is a speaker, a buzzer sound may be output, and when the output unit 170 is an alarm lamp, an alarm lamp may be turned on.

If the output unit 170 is a display unit, an image that can indicate that the output unit 170 is positioned within the reference distance range can be displayed on the screen. Here, the main control unit 110 may display the current measurement distance on the screen of the display unit in real time, thereby allowing the operator to check that the operator is located within the reference distance range.

On the other hand, when the operator recognizes the output of the alarm through the output unit 170, the blood vessel projection apparatus 100 is stopped at the current position. At this time, the main control unit 110 controls the auto focusing unit 132 of the camera module 130 so that the camera module 130 performs the auto focusing operation at the current position (S44). When the auto focusing is completed, An infrared ray is photographed by the module 130 (S45) and an infrared ray image is obtained.

As described above, in order to find the distance to the skin suitable for projecting the blood vessel image using the blood vessel projection apparatus 100 according to the present invention, the laser distance sensor 160 is firstly used to measure the blood vessel projection The device 100 is moved and the photographing is performed through the autofocusing function of the camera module 130 within the reference distance range so that the operator can more easily find an appropriate distance and can easily and more clearly detect the infrared image .

When the infrared ray image is obtained through the above-described method, the image processing module 140 processes the infrared ray image as described above (S46) to generate the blood vessel image. At this time, the main control unit 110 controls the projection module 150 based on the measurement distance measured by the laser distance sensor 160, (S47), the size of the screen is automatically adjusted so that the actual blood vessel image matches the blood vessel image at the current distance.

Thus, a clear blood vessel image can be projected onto the patient's skin while matching the actual blood vessel.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to be exemplary and explanatory only and are not to be construed as limiting the scope of the inventive concept. And it is obvious that it is included in the technical idea of the present invention.

100: vascular projection apparatus 110: main control unit
120 infrared ray irradiation module 130 camera module
131: image sensor unit 132: auto focusing unit
140: image processing module 150: projection module
151: image projection part 152: projection lens
153: zoom driver 160: laser distance sensor
170:

Claims (6)

An infrared ray irradiation module for irradiating infrared rays toward the skin;
A camera module for photographing the infrared ray irradiated from the infrared ray irradiation module and reflected from the skin side;
An image processing module for extracting a blood vessel from the infrared image taken by the camera module and generating a blood vessel image;
A projection module for projecting the blood vessel image generated by the image processing module to the skin;
A distance sensor for measuring the distance to the skin;
When the distance to the skin is within a predetermined reference distance range based on the measurement result of the distance sensor, the camera module controls the camera module to operate the auto focusing function based on the measured distance measured by the distance sensor And a main controller for controlling the image processing module and the projection module so that the blood vessel image is projected based on the infrared image photographed in the auto focusing state.
The method according to claim 1,
Wherein the distance sensor comprises a laser distance sensor.
The method according to claim 1,
Wherein the main control unit controls the projection module to operate the auto zoom function of the projection module based on the measurement distance measured by the distance sensor.
The method according to claim 1,
And an output unit for outputting a predetermined alarm;
Wherein the main control unit controls the output unit to output an alarm when the distance to the skin is within the reference distance range based on the measurement result of the distance sensor.
5. The method of claim 4,
Wherein the output unit includes at least one of a speaker that outputs sound, an alarm lamp that is turned on / off under the control of the main control unit, and a display unit that displays an image.
6. The method of claim 5,
And the measurement distance is displayed on the display unit.
KR1020140148908A 2014-10-30 2014-10-30 Apparatus for projecting blood vessel using infrared rays KR20160050529A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180121082A (en) * 2017-04-28 2018-11-07 포항공과대학교 산학협력단 Vein navigator including functional blood flow and analysis method thereof
KR20180136219A (en) * 2017-06-14 2018-12-24 고려대학교 산학협력단 Goggle system for image guide surgery
CN113017566A (en) * 2021-02-26 2021-06-25 北京伟浩君智能技术有限公司 Blood vessel identification and positioning method and device based on image
KR102482425B1 (en) * 2022-08-11 2022-12-28 (주)헬스케어다온 Device for measuring information related to blood vessel and blood flow
KR102497398B1 (en) * 2022-11-30 2023-02-08 (주)헬스케어다온 Device for measuring information related to blood vessel and blood flow including plurality of light emitting part

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180121082A (en) * 2017-04-28 2018-11-07 포항공과대학교 산학협력단 Vein navigator including functional blood flow and analysis method thereof
KR20180136219A (en) * 2017-06-14 2018-12-24 고려대학교 산학협력단 Goggle system for image guide surgery
CN113017566A (en) * 2021-02-26 2021-06-25 北京伟浩君智能技术有限公司 Blood vessel identification and positioning method and device based on image
KR102482425B1 (en) * 2022-08-11 2022-12-28 (주)헬스케어다온 Device for measuring information related to blood vessel and blood flow
KR102497398B1 (en) * 2022-11-30 2023-02-08 (주)헬스케어다온 Device for measuring information related to blood vessel and blood flow including plurality of light emitting part

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