KR20120109015A - Laser therapy apparatus and method for controlling laser therapy apparatus - Google Patents

Abstract

PURPOSE: A laser therapy device and a control method of the same are provided to allow operators to know about bleeding by checking the occurrence of bleeding in real time. CONSTITUTION: A laser therapy device comprises a laser projecting unit(130), a picturing unit(140), an image processing unit, a data storage module, and a determining unit. The picturing unit records a surgical operation region with a laser irradiating unit. The image processing unit processes the recorded images. The data storage module stores the data processed in the image processing unit. The determining unit compares first image data with second image data in order to determine the occurrence of bleeding at the surgical operation region.

Description

Laser therapy apparatus and method for controlling laser therapy apparatus

The present invention relates to a laser treatment apparatus and a control method of the laser treatment apparatus, and more particularly, to a laser treatment apparatus and a control method of the laser treatment apparatus to enable the operator to quickly recognize the bleeding occurred in the treatment site during the procedure. will be.

Lasers, which are generally used for medical purposes, come in various varieties, such as those used for cosmetic surgery, tumor removal, and surgical treatments such as prostate hyperplasia. The laser used for surgical treatment is a method in which a surgeon removes or cuts a part of the skin living body that needs to be removed or cut by irradiating the laser to the procedure position after placing the rash portion of the laser irradiator into the patient's body. Used as

Laser treatment is generally widely used in recent years for the benefit of bloodless procedures, but in the case of the treatment of the biological tissues in the body sometimes bleeding occurs unintentionally due to laser damage to the blood vessel region.

If such bleeding occurs, the operator should check it immediately and perform immediate hemostatic work on the bleeding site. However, the laser procedure is mainly performed by forming a small hole in the body and then inserting the laser irradiator into the body through the hole, and also inserting the endoscope device together with the laser irradiator to perform the operation for a wide range of the body. It's hard to check.

In addition, there is a problem that the operator does not properly recognize the bleeding portion due to the narrow range of vision.

According to the present invention, when bleeding occurs at the treatment site during laser treatment, the bleeding can be determined by comparing the previously photographed image with the currently photographed image, thereby allowing the operator to recognize the bleeding and to perform the bleeding operation. An object of the present invention is to provide a laser treatment apparatus and a control method of the laser treatment apparatus that can be quickly performed.

Laser treatment apparatus according to the present invention is a laser irradiation unit for irradiating a laser to the treatment site of the patient for the laser treatment, a photographing unit for photographing the treatment site of the patient together with the laser irradiation unit, processing the image taken by the imaging unit An image processing unit, a data storage unit storing data about an image processed by the image processing unit, and comparing data of a first image stored in the data storage unit with data of a second image captured and stored before the first image It is provided with a determination unit for determining whether the bleeding occurs in the treatment area.

If it is determined that the bleeding has occurred in the procedure site at the determination unit may be provided with a notification unit to notify the outside that the bleeding occurred in the procedure site.

The image processor may include an image converter configured to convert the photographed image into a grayscale monochrome image, and a comparison data extractor configured to extract comparison data from the grayscale monochrome image converted by the image converter.

The image converter may display each pixel of the grayscale black and white image in brightness intensity, and the comparison data extracting unit may extract the sum of the brightness intensities of the set frames as the comparison data.

The image processor extracts a comparison data extracting comparison data from a red scale image representing a red value from each pixel of a set frame of a captured color image and the red scale image converted by the image converting unit. It may include wealth.

The image converter may display a pixel value of the red scale of each pixel of the red scale image, and the comparison data extractor may extract the sum of the red scale pixel values of the set frame as the comparison data.

The control method of the laser treatment apparatus according to the present invention is to photograph the surgical site of the patient irradiated with the laser, to process the first image of the surgical site of the patient to be photographed, and to store the data for the processed first image, The data for the first image is compared with the data of the second image photographed and stored before the data of the first image to determine whether bleeding occurs at the procedure site.

When it is determined that the bleeding has occurred in the procedure site, it can be informed to the outside that the bleeding occurred in the procedure site.

The captured image may be converted into a gray scale black and white image, and the comparison data may be extracted from the gray scale black and white image.

Each pixel of the black and white image may be displayed in brightness intensity, and the comparison data may be calculated from a sum of brightness intensities of the set frames.

If the comparison data for the sum of the brightness intensities for the first image and the comparison data for the sum of the brightness intensities for the second image are greater than or equal to a predetermined value, it may be determined that bleeding has occurred.

Each pixel of the set frame of the captured color image may be converted into a red scale image representing a red scale value, and comparison data may be extracted from the converted red scale image.

The pixel value of the red scale image may be displayed, and the comparison data may be extracted as a sum of red pixel values for a set frame.

If the comparison data for the first image and the comparison data for the second image are greater than or equal to a predetermined value, it may be determined that bleeding has occurred.

In the laser treatment apparatus and the control method of the laser treatment apparatus according to the present invention, when bleeding occurs in the treatment area during the treatment of the patient's body or in vitro using a laser, the bleeding is checked in real time by checking whether the bleeding has occurred. This allows the operator to be more clearly aware of the status of the procedure at the site of the procedure and to perform the hemostatic operation immediately due to bleeding, thereby improving the surgical stability and efficiency of the laser treatment device. It works.

1 is a view showing a laser treatment apparatus according to the present embodiment.
2 is a block diagram of the laser treatment apparatus according to the present embodiment.
3 is an operation flowchart of the laser treatment apparatus according to the present embodiment.
4 is an operation flowchart of a laser treatment apparatus according to another embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Unlike the embodiments of the laser treatment apparatus and the control method of the laser treatment device disclosed below, it should be noted that a part of the configuration may be changed or added, and the name of each component may be differently used by those skilled in the art. .

1 is a view showing a laser treatment apparatus according to the present embodiment. As shown in FIG. 1, the laser treatment apparatus according to the present embodiment includes a main body 100, a cable 110 having one end connected to the main body 100, and a handpiece 120 installed at an end of the cable 110. ).

 The handpiece 120 is connected with an extended probe (unsigned) for laser irradiation. In addition, the end of the probe is provided with or near the laser irradiator 130 and the laser irradiator 130 is provided with a photographing unit 140 for taking an intra- or extracorporeal procedure of the patient irradiated by the laser irradiator 130.

Inside the probe, an optical fiber 111 for guiding light to the laser irradiator 130 and a signal line 112 for transmitting a signal photographed by the photographing unit 140 to the main body 100 through the probe and the handpiece 120 extend. Is installed. The imaging unit 140 may be implemented as a charge coupled device (CCD) or a complementary metal semiconductor (CMOS) device.

On the other hand, Figure 2 is a block diagram of a laser treatment apparatus according to the embodiment. As shown in FIG. 2, the laser oscillator 160, the image processor 170, the data storage unit 180, the determination unit 190, the display unit 200, and the notification unit 210 are located inside the main body 100. And a controller 150 for controlling the operations of the above-described components.

The laser oscillator 160 may be implemented by various kinds of laser sources such as an Nd: YAG laser source, a KTP laser source, an Er: YAG laser source, a Ho: YAG laser source, a CO2 laser source, and the like. Therefore, the laser provided from the laser oscillator 160 is transmitted to the handpiece 120 through the optical fiber 111. Although not shown in the drawings, an optical system for guiding the laser is configured inside the main body 100.

The image processor 170 is a component that processes the image photographed by the photographing unit 140. The image processor 170 may first convert a photographed image into a gray scale or red scale from a video transcoding unit and a gray scale or red scale image converted by the image converting unit. It includes a comparative data extracting unit for extracting the comparative data (comparative data extracting unit). In this case, the gray scale or red scale image is a digital value and indicates a gray value or red value of each pixel included in one frame.

Accordingly, the image converter may display each pixel as a brightness intensity for the grayscale black and white image, and the comparison data extracted by the comparison data extractor may be the sum of the brightness intensities for the set frames.

In another embodiment, when the image converter converts an image into a red scale image, the comparison data extracted by the comparison data extractor may be the sum of pixel values of the red scale for the set frame.

Meanwhile, the data storage unit 180 stores both previous image data and comparison data processed by the image processor 170, and currently captured image data and comparison data. In addition, other surgical records may be stored in the data storage unit 180.

Next, the determination unit 190 is configured to determine whether the patient is bleeding in the treatment area by comparing the comparison data obtained from the data for the current image stored in the data storage unit 180 and the previously taken image.

To this end, the determination unit 190 compares two or more comparison data using a predetermined set value set by the control unit 150. This setting value can be arbitrarily set by the operator, and is a value that arbitrarily sets the difference between the gray scale pixel value or the red scale pixel value assuming bleeding and no bleeding at the patient's procedure site. to be.

That is, for example, the difference between the pixel value of the case where bleeding does not occur and the case of bleeding may be large in the bright treatment area, so the setting value can be set small, and the bleeding does not occur in the dark treatment area. Since the difference in pixel value may be small when bleeding occurs, the set value can be set large, and the operator can arbitrarily adjust the set value according to various other treatment environments.

Therefore, when comparing the current image and the previous image when the difference is determined to be greater than the set value it can be determined that there is a bleeding, if less than that it can be determined that there is no bleeding. And depending on whether the bleeding is excessive bleeding or mild bleeding, the operator can determine the need for cognition according to the degree of bleeding can be adjusted to inform the outside of the bleeding degree.

Next, the display unit 200 may be a conventional flat panel display as a device for displaying a photographed image and other various necessary information to the outside. In addition, the notification unit 210 is a device for generating an alarm when bleeding occurs. Accordingly, the display unit 200 may include a function of the notification unit 210 to display a notification on the display, or implement the notification unit 210 separately to notify the outside of the bleeding by lighting or sound. Can be.

Hereinafter, an embodiment of a control method of the laser treatment apparatus according to the present embodiment configured as described above will be described.

3 is an operation flowchart of the laser treatment apparatus according to the present embodiment. As shown in FIG. 3, in the control method of the laser treatment apparatus, the operator inserts the laser irradiator 130 and the imaging unit 140 into the patient's body using the handpiece 120. When it is determined that the environment is suitable for the procedure, the operator starts the procedure by irradiating the laser to the treatment site. In this case, the photographing unit 140 photographs the surgical part of the patient in real time (S10).

The first image taken immediately before or immediately after the procedure is processed is processed by the image processor 170 and stored in the data storage unit 180. In this case, the stored image data is an image converted into a gray scale black and white image by the image converter (S11), and the image processor 170 displays the gray scale value, which is the brightness intensity of each pixel, from the frame of the captured image for each pixel. After extracting (S12).

Here, the gray scale value of each pixel may have a value between "0 and 256". The comparison data extracting unit of the image processor 170 calculates the sum of gray scale values of each pixel of the corresponding frame as comparison data, and stores the calculated value in the data storage unit 180 (S13).

After the procedure is started, the procedure is continuously taken. The images continuously photographed during the procedure are continuously processed by the image processor 170 and stored in the data storage unit 180.

That is, the captured image is converted into a gray scale black and white image by the image conversion unit in the order of shooting, and then the gray scale value, which is the brightness intensity of each pixel, is extracted for each pixel from the image frame. In this case, the gray scale value of each pixel may have a value between "0 and 256". The sum of gray scale values of each pixel of the corresponding frame is calculated by the comparison data extracting unit as comparison data, and the calculated value is stored in the data storage unit 180.

Here, if the image photographed during the procedure is called the first image and the first photographed and stored image is referred to as the second image, the comparison data of the first image and the second image may be compared with each other to determine whether bleeding occurs at the procedure site. (S14).

That is, the current photographed brightness intensity sum (A1), which is the comparative data extracted by the comparison data extracting unit of the image processor 170, is compared with the previous photographed brightness intensity sum (S15), and as a result of the comparison, the currently photographed brightness intensity A1 ) And whether the difference between the sum of the brightness intensity A2 previously photographed is greater than or equal to the set value.

If it is determined that the set value is greater than or equal to the bleeding occurs, on the other hand, if determined to be less than the set value may be determined that the bleeding does not occur (S16).

This setting value can be arbitrarily adjusted by the operator and reflects changes in the image that may occur when a part of the biological tissue is burned by the laser during the procedure position and the procedure.

Therefore, if it is determined that the bleeding has occurred after comparing the sum of the brightness intensity of the currently photographed image with the sum of the brightness intensity previously photographed, the notification unit 210 generates a bleeding alarm for a predetermined time (S17). After a predetermined time, the bleeding warning is terminated (S18), and photographing of the procedure site is performed again (S10). Then, the photographed result is repeatedly performed in the same manner as described above to determine whether the bleeding is continued on the treatment site.

Meanwhile, as described above, the bleeding may be determined from the gray scale black and white image, but the bleeding may be determined from the red scale image.

4 is an operation flowchart of a laser treatment apparatus using a red scale image.

As shown in FIG. 4, in the control method of the laser treatment apparatus, the operator inserts the laser irradiator 130 and the imaging unit 140 into the patient's body using the handpiece 120. The operator starts the procedure when it is determined that the environment is suitable for the procedure. At the same time, the photographing unit 140 photographs the surgical site of the patient in real time (S20).

In this case, the first image immediately before or immediately after the procedure is started is processed by the image processor 170 as the first image and stored in the data storage unit 180. The stored image data may be an image converted into a red-scale image by the image converter (S21). Thereafter, the red scale value of each pixel is extracted and displayed for each pixel from the frame of the captured image (S22). Here, the red scale value of each pixel may have a value between "0 and 256". In operation S23, the sum of the red scale values of each pixel of the corresponding frame is extracted by the comparison data extracting unit, and the extracted values are stored in the data storage unit 180 (S23).

After the procedure is started, the procedure is continuously taken. The images continuously photographed during the procedure are continuously processed by the image processor 170 and stored in the data storage unit 180.

That is, after the photographed images are converted into red-scale images by the image conversion unit, the comparison data extracting unit extracts the red scale value of each pixel from the frame of the image. In this case, the red scale value of each pixel may have a value between "0 and 256". The sum of the red scale values of each pixel for the corresponding frame is calculated, and the calculated values are stored in the data storage unit 180.

Here, if the image photographed during the procedure is called a first image, and the first photographed and stored image is referred to as a second image, it may be determined whether bleeding occurs at the surgical site by comparing the first image and the second image (S24).

That is, comparing the sum B1 of the pixel values of the currently captured red scale, which is the comparison data converted by the comparison data extracting unit of the image processor 170, with the sum B2 of the previously captured red scale, and comparing the result, the current image After determining whether the difference between the sum of the red scale pixel values B1 and the previously photographed brightness intensity sum B2 is greater than or equal to the set value, it is determined that bleeding has occurred. On the other hand, if it is determined that the set value is less than, it may be determined that bleeding does not occur.

Therefore, after comparing the sum B1 of the red scale pixel values of the currently photographed image with the sum B2 of the pixel values of the red scale photographed previously, it is determined that bleeding has occurred (S26), and the notification unit 210 A bleeding alarm is generated for a predetermined time (S27). After a predetermined time, the bleeding alarm is terminated (S28), and photographing is performed at the treatment site again. Then, the photographed result is repeatedly performed in the same manner as described above to determine whether the bleeding is continued on the treatment site.

Such an embodiment of the laser treatment apparatus and the control method of the laser treatment apparatus according to the present invention is a bleeding to the operator by checking whether the bleeding occurs in real time when the bleeding occurs in the treatment site during the procedure of the patient's body or in vitro By making it possible to inform whether or not it can contribute to the improvement of the surgical stability and efficiency of the laser treatment device.

The above embodiment of the present invention should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art will be able to modify the technical idea of the present invention in various forms. Accordingly, such improvements and modifications will fall within the scope of the present invention as long as they are obvious to those skilled in the art.

100 ... body
110 ... cable
120 ... handpiece
130 ... laser irradiation department
140.Photographer
150 ... control unit
160 ... laser oscillation
170.Image processing unit
180.Data storage

Claims (14)

A laser irradiation unit for irradiating the laser to the surgical site of the patient for the laser treatment;
A photographing unit for photographing the surgical site of the patient together with the laser irradiation unit;
An image processor which processes an image photographed by the photographing unit;
A data storage unit which stores data on an image processed by the image processor;
And a determination unit for comparing the data of the first image stored in the data storage unit with the data of the second image photographed and stored before the first image to determine whether bleeding occurs at the procedure site.
The laser treatment apparatus of claim 1, further comprising a notification unit configured to notify the outside that the bleeding has occurred at the procedure site when the determination unit determines that the bleeding has occurred.
The image processing unit of claim 1, wherein the image processing unit is configured to convert a captured image into a gray scale black and white image, and a comparison data extracting unit extracting comparison data from the gray scale black and white image converted by the image conversion unit. Laser treatment apparatus comprising.
The apparatus of claim 3, wherein the image converting unit displays each pixel of the grayscale black and white image in brightness intensity, and the comparison data extracting unit extracts the sum of the brightness intensities for the set frames as the comparison data. Laser treatment device.
The image processing unit of claim 1, wherein the image processor is further configured to convert an image converting unit to a red scale image representing a red value from each pixel of a set frame of the captured color image, and to compare data from the red scale image converted by the image converting unit. Laser treatment apparatus comprising a comparison data extraction unit for extracting.
6. The apparatus of claim 5, wherein the image converting unit displays a pixel value of a red scale of each pixel of the red scale image, and the comparison data extracting unit converts the sum of the red scale pixel values of the set frame into the comparison data. Laser treatment device to extract.
Take a picture of the patient's procedure where the laser is irradiated
Process the first image of the surgical site of the patient to be photographed,
Save data about the processed first image,
And comparing the data of the first image with the data of the second image photographed and stored before the data of the first image to determine whether bleeding occurs in the surgical site.
The method of claim 7, wherein if it is determined that the bleeding has occurred at the procedure site, the control method of the laser treatment apparatus is configured to notify the outside that the bleeding has occurred at the procedure site.
The control method of claim 7, wherein the captured image is converted into a gray scale black and white image, and the comparison data is extracted from the gray scale black and white image.
The method of claim 9, wherein each pixel of the black and white image is displayed in brightness intensity, and the comparison data is calculated from a sum of brightness intensities for a set frame.
The laser treatment of claim 10, wherein the bleeding is determined when the comparison data of the sum of the brightness intensities of the first image and the comparison data of the sum of the brightness intensities of the second image are greater than or equal to a set value. Control method of the device.
The method of claim 7, wherein each pixel of the set frame of the photographed color image is converted into a red scale image representing a red scale value, and the comparison data is extracted from the converted red scale image.
The method of claim 12, wherein the pixel value of the red scale image is displayed, and the comparison data is extracted as a sum of red pixel values for a set frame.
The method of claim 13, wherein the bleeding is determined when the comparison data for the first image and the comparison data for the second image are equal to or larger than a set value.

Images