KR20240055524A - Phantom apparatus for stone destruction laser - Google Patents

Abstract

The present invention relates to a phantom device for a laser for stone destruction, comprising: an irradiation unit for lithotripsy of stones; and an imaging unit that captures images of the crushing performed in the irradiation unit, wherein the irradiation unit includes: a water tank containing a fluid; A tube in which the water tank and both ends are connected in a watertight manner and the stone is placed at one point inside; and an optical fiber unit connected at one end to the tube and irradiating the laser to the stone through the tube. A phantom device for a laser for stone destruction is provided, including a.

Description

Phantom device for stone destruction laser {PHANTOM APPARATUS FOR STONE DESTRUCTION LASER}

The present invention relates to a phantom device for a laser for stone destruction.

Generally, pulse lasers are used to destroy stones such as urinary stones. In addition, by generating two pulses sequentially using the recent MOSES effect, it has the effect of efficiently destroying stones and at the same time reducing the position of the stones backwards. To evaluate the performance of such a pulse laser, the performance of the pulse is generally checked using an oscilloscope. However, the actual environment where the pulse laser is used is filled with water, such as the ureter, so it is necessary to check the performance of the pulse while the laser is actually operating.

The performance evaluation of pulse lasers used for conventional medical purposes is mainly non-clinical, where the performance is evaluated by creating a stone model in an animal model and directly examining it. However, creating stone models in animal models is realistically difficult, resulting in unnecessary animal sacrifices, and making stones similar to human shapes is difficult.

In addition, it proposes a method of confirming the generation of shock waves using ultrasonic waves through images in a water tank, and most pulse laser measurement methods use measuring devices such as power meters, energy meters, and optical detectors to measure with an oscilloscope. Therefore, it does not provide a means to evaluate performance in a real environment.

Republic of Korea Patent Publication No. 10-2021-0035224 (2021. 03. 31)

The purpose of one embodiment of the present invention is to create a similar environment in which urinary stones occur and to observe and evaluate the crushing of urinary stones by irradiating a laser.

The present invention relates to a phantom device for a laser for stone destruction, comprising: an irradiation unit for lithotripsy of stones; and an imaging unit that captures images of the crushed stones performed in the irradiation unit, wherein the irradiation unit includes: a water tank containing a fluid; A tube in which a water tank and both ends are connected in a watertight manner and a stone is placed at one point inside; and an optical fiber unit connected at one end to the tube and irradiating the laser to the stone through the tube. A phantom device for a laser for stone destruction is provided, including a.

And, the laser may be a Holmium-YAG Laser.

In addition, it may further include a control unit connected to the other end of the optical fiber unit and selectively controlling the laser pulse to irradiate the laser.

Additionally, among the composition materials of the tube, gypsum powder and distilled water may be included in a 1:5 ratio.

Additionally, the imaging unit includes a camera capable of capturing at least microsecond pulses of a laser; and a terminal in which images captured by a camera are stored.

In addition, the irradiation unit further includes a control unit that controls information on the laser,

Additionally, the control unit can synchronize the determined laser information and the imaging conditions of the imaging unit.

According to one embodiment of the present invention, it is possible to provide a phantom device for a stone-destroying laser that creates a similar environment in which urinary stones occur and irradiates a laser to observe and evaluate the calcination of urinary stones.

Figure 1 is a perspective view of a phantom device for a laser for stone destruction according to an embodiment of the present invention.
Figure 2 is a cross-sectional view of a phantom device for a laser for stone destruction according to an embodiment of the present invention.
Figure 3 shows the stone being crushed according to an embodiment of the present invention. Figure 3(a) is a diagram showing being crushed through a general laser, and Figure 3(b) is a diagram showing being crushed through a pulse laser. It is a drawing.
Figure 4 is a diagram showing that the present invention further includes an imaging unit for photographing crushed stones according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, this is only an example and the present invention is not limited thereto.

In describing the present invention, if it is determined that a detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, the definition should be made based on the contents throughout this specification.

The technical idea of the present invention is determined by the claims, and the following examples are merely a means to efficiently explain the technical idea of the present invention to those skilled in the art in the technical field to which the present invention pertains.

The present invention, which will be described below, relates to a phantom device for a laser for destroying stones (1), and enables evaluation of the performance of a pulsed laser for lithotripsy of stones (1) in the ureteral environment. In addition, by using the stone (1) phantom, it is possible to quantitatively evaluate the stone (1) phantom in an actual situation and the stone (1) being pushed back during stone crushing. The present invention can confirm whether the pulse laser operates smoothly in an environment filled with fluid (2) inside, such as a ureter, and can detect stones (1) using a conventional animal model that is inefficient and performs more than necessary. Allows you to skip the creation process. More specifically, the phantom device for the laser for destroying stones (1) of the present invention will be described later.

Figure 1 is a perspective view of a phantom device for a laser for destroying stones 1 according to an embodiment of the present invention.

Referring to Figure 1, the phantom device for the laser for destroying stones (1) of the present invention includes an irradiation unit (10) that performs lithotripsy of stones (1) and an imaging unit (20) that captures images of the lithotripsy performed in the irradiation unit (10). ) may include. Specifically, the irradiation unit 10 includes a water tank 110 that accommodates the fluid 2, a tube 120 in which both ends are connected to the water tank 110 while maintaining watertightness and the stone 1 is located at an internal point, and One end is connected to the tube 120 and may include an optical fiber unit 130 that irradiates a laser to the stone 1 through the tube 120.

The water tank 110 allows both ends of the tube 120 to be connected to two opposing sides. The water tank 110 may be in a state to accommodate the fluid 2, and the tube 120 may be provided to be sufficiently immersed in the fluid 2 contained in the water tank 110. This may be designed to conduct experiments by creating an environment similar to that of the ureter.

Both ends of the tube 120 may be connected to the fixing jig 140 and the optical fiber unit 130, respectively. The fixing jig 140 enables coupling between one end of the tube 120 and one side wall of the water tank 110, and the optical fiber portion 130 provides coupling between the other end of the tube 120 and the other wall surface of the water tank 110. Let this happen. As an example, the fixing jig 140 may have a protruding structure so that it can be inserted into one side wall of the water tank 110. Of course, the water tank 110 may have a groove formed so that a corresponding protruding structure can be inserted. Through this structure, the fixing jig 140 inserted into the water tank 110 can be provided with a stopper 141 that limits the insertion distance. The stopper 141 may be formed to contact one side wall of the water tank 110 to limit insertion of the protruding structure. In addition, the stopper 141 is formed of, for example, a rubber material and can maintain adhesion after coming into contact with one side wall of the water tank 110. The fixing jig 140 is connected to the tube 120 on the opposite side of the protruding structure based on the stopper 141, and can be connected by inserting into the tubular tube 120.

Meanwhile, the other end of the tube 120 may be coupled to the optical fiber unit 130. The optical fiber unit 130 allows the laser to be radiated into the tube 120 through the optical fiber, and for this purpose, the optical fiber unit 130 can be inserted and coupled to the tube 120. In other words, the optical fiber may be combined so that the laser can reach the stone 1 inside the tube 120 toward the inside of the tube 120. Additionally, the optical fiber unit 130 may have one end coupled to the other end of the tube 120 and penetrate the water tank 110 so that the other end extends to the outside of the water tank 110. In the process of penetrating the water tank 110, the optical fiber unit 130 may be coupled to the connection portion 131 and a through hole formed in the water tank 110. Of course, the connection portion 131 and the through hole are coupled to maintain watertightness to prevent the fluid 2 contained within the water tank 110 from leaking out from the inside of the water tank 110 through the through hole. The optical fiber unit 130 extending outside the water tank 110 may be connected to a control unit 150 capable of controlling laser pulses.

In addition to the above-mentioned connection structure, the fluid 2 contained in the water tank 110 may be 0.9% physiological saline, and the tube 120 has a ratio of gypsum powder and distilled water of 1:5 among the composition materials for the tube 120. can be determined, and the laser irradiated through the optical fiber may be a Holmium-YAG Laser. Of course, it is not limited to this, but may preferably be configured like this.

Figure 2 is a cross-sectional view of a phantom device for a laser for destroying stones 1 according to an embodiment of the present invention.

Referring to FIG. 2, as shown, the laser can reach the stone 1 located within the tube 120 through the optical fiber unit 130. The optical fiber portion 130 coupled to the water tank 110 through the connection portion 131 may be opened as much as the diameter of the optical fiber (for example, 200 micrometers to 2 millimeters) to enable laser aperture through the optical fiber. The laser is irradiated with a predetermined pulse controlled by the control unit 150 and can be irradiated with a pulse of at least a microsecond. The Moses effect may be induced by laser irradiation.

Furthermore, by irradiating a laser emitting a predetermined pulse determined by the control unit 150, the lithotripsy speed, lithotripsy reaction, etc. of the stone 1 can be confirmed. The lithotomy reaction includes a reaction in which the stone (1) is moved (pushed back, etc.) by the laser, or a reaction in which a crack occurs in the lithotomy by the laser, and comprehensively describes the various results that the laser has on the stone (1). You can check it. The above “confirmation” can be confirmed with the results of imaging. This will be explained in more detail through the imaging unit 20 shown in FIG. 4.

Figure 3 shows the stone 1 being crushed according to an embodiment of the present invention. Figure 3(a) is a diagram showing the stone 1 being crushed through a general laser, and Figure 3(b) is a diagram showing the stone 1 being crushed through a pulse laser. This is a drawing showing what happens.

Referring to Figure 3, a case showing a stone (1) when the stone (1) is irradiated with a type of laser (variable optical information including pulses, etc.) that does not cause a reaction or has a minimal response; and (1) the stone (1). This shows the stone (1) that was irradiated with the type of laser that caused the reaction and caused the reaction. In the latter case, this means that crushing progresses and the particles of the stone (1) continue to become smaller. In this way, by photographing the reaction generated by the laser during laser irradiation through the imaging unit 20, laser information that can more effectively triturate the stone 1 can be obtained.

Figure 4 is a diagram showing that the present invention further includes an imaging unit 20 for photographing a crushed stone 1 according to an embodiment of the present invention.

Referring to FIG. 4 , the imaging unit 20 may include a camera 21 capable of capturing at least microsecond pulses of a laser and a terminal 22 in which images captured by the camera 21 are stored. The camera 21 may be positioned so that the stone 1 is positioned within the imaging frame. The terminal 22 is connected to the camera 21 over a telecommunication line and can store records such as captured videos or images. Furthermore, the stored records can be processed into meaningful information that a person skilled in the art would like to obtain. The processing may be information that can be derived through the relationship between the recording recorded through the camera 21 and the laser information determined by the control unit 150. This may include the size of the crack generated during the crushing process, the retreat distance of the stone (1), the delay in crushing, the size of the pulse, etc.

As described above, the phantom device, which is an embodiment of the present invention, is connected to the other end of the optical fiber unit 130 and may further include a control unit 150 that selectively adjusts the laser pulse to irradiate. The phantom device, which is an embodiment of the present invention, is used to obtain appropriate laser pulses, etc. (laser information) by observing the lithotripsy reaction of the stone 1 according to laser irradiation. Accordingly, when laser information such as pulses is changed by the control unit 150, the imaging frames must be synchronized so that the arrival position of the laser and the reaction caused by the laser can be recorded as an imaging result. Accordingly, laser information changed by the control unit 150 can change the imaging conditions (fps, etc.) of the camera 21. In other words, the laser information controlled by the control unit 150 and the imaging conditions of the camera 21 can be synchronized to corresponding conditions. The synchronization may be accomplished by providing a separate means for synchronization, or by connecting the control unit 150 and the camera 21 over a telecommunication line.

Although representative embodiments of the present invention have been described in detail above, those skilled in the art will understand that various modifications can be made to the above-described embodiments without departing from the scope of the present invention. . Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the claims and equivalents of the claims as well as the claims described later.

1: absent
2: fluid
10: Investigation Department
110: water tank
120: tube
130: Optical fiber unit
131: connection part
140: Fixed jig
141: stopper
150: control unit
20: imaging unit
21: Camera
22: terminal

Claims (6)

an investigation department that conducts lithotripsy of stones; and
It includes; an imaging unit that captures images of the crushing performed in the survey unit,
The investigation department said,
A water tank containing a fluid;
a tube in which both ends are connected to the water tank in a watertight manner and in which the stone is located at a point inside; and
A phantom device for a laser for stone destruction, comprising: an optical fiber unit connected to the tube at one end and irradiating a laser to the stone through the tube.
In claim 1,
The laser is a phantom device for a laser for stone destruction, a Holmium-YAG Laser.
In claim 1,
A phantom device for a laser for stone destruction, further comprising a control unit connected to the other end of the optical fiber unit and selectively controlling the pulse of the laser to irradiate it.
In claim 1,
A phantom device for a laser for stone destruction, wherein among the composition materials of the tube, gypsum powder and distilled water are contained in a ratio of 1:5.
In claim 1,
The imaging unit,
a camera capable of capturing at least microsecond pulses of the laser; and
A phantom device for a laser for stone destruction, including a terminal in which the image captured by the camera is stored.
In claim 1,
The irradiation unit further includes a control unit that controls information on the laser,
A phantom device for a laser for stone destruction, wherein the control unit synchronizes the determined information of the laser with the imaging conditions of the imaging unit.