JP2022181201A - Apparatus for marking irradiation area for hand-held x-ray device - Google Patents

Abstract

To provide an apparatus for marking an X-ray irradiation area for a hand-held X-ray device.SOLUTION: An apparatus for marking an irradiation area for a hand-held X-ray device includes: a hand-held X-ray device which is an X-ray irradiation unit for irradiating X-rays; an X-ray conduit that receives and guides X-rays emitted from the X-ray irradiation unit and outputs them to the outside; and a reflector mounted inside the X-ray conduit that reflects light emitted from a light source to mark an X-ray irradiation area.EFFECT: Providing lightweight portability in a simple structure allows the X-ray device to be used conveniently without being fixed to a specific place.SELECTED DRAWING: Figure 4

Description

FIELD OF THE INVENTION The present invention relates to a hand-held X-ray equipment irradiation field display.

In detail, because the internal structure of the handheld X-ray equipment is narrow, it does not have a complicated collimator structure using reflectors and apertures. It is a technology related to a device that

In general, the X-ray beam should be directed perpendicular to the subject and aligned over the center of the sensor for image acquisition. If this alignment is not followed, a cone-cut will occur. Conical cutting cuts show less X-ray exposure at the cut site and thus show up as clear areas on radiographs after treatment. When using digital images, the conical cut area is shown as opaque or white.

To correct for cone cut errors, the center of the x-ray beam should be vertically aligned with the image sensor. Improper fixation of the image sensor can also cause cone cuts.

Korean Patent No. 10-1404004

A sensor for acquiring an image of a subject is fixed with a sensor holder and used by inserting it into the oral cavity. At this time, the user regards the end of the sensor holder as the range in which the sensor is contained, aligns the handheld X-rays on a straight line, and performs X-ray imaging with the object and the irradiation angle on the same line.

However, the size and weight of the sensor holder make it inconvenient to use, and the X-ray irradiation time must be increased due to the long proximity distance to the object with the handheld X-ray equipment. Side effects may occur.

Also, it is difficult for handheld X-ray equipment to mount a collimator inside the emission port.

A conventional X-ray collimator itself weighs more than 2 kg, and is bulky and difficult to install inside the radiation port.

Since the weight of the handheld X-ray equipment itself is about 1.5 to 2.5 kg, if a conventional diaphragm-type heavy collimator of 2 kg or more is added, the portability of the handheld equipment will be reduced.

Handheld X-ray equipment is recommended to obtain the best images at a distance of 5 cm or 2 inches from the edge of the aperture to the subject, but a separate voluminous collimator can be mounted in front of the aperture. For example, there is a problem that the distance for obtaining the best image is deviated.

The present invention provides an apparatus for displaying the x-ray exposure field for handheld x-ray equipment.

Due to the narrow internal structure of the handheld X-ray equipment, the present invention does not create a complicated collimator structure using a reflecting mirror or diaphragm, and displays the X-ray irradiation area by simply attaching the LED light source inside the radiation port. make it

The present invention employs a structure that cools the heat generated from the LED light source by itself, thereby increasing the convenience of use as portable equipment.

The use of a handheld x-ray equipped illuminated area display device according to the present invention ensures precise vertical alignment of the x-ray beam emitted to the subject and the image sensor.

The irradiation area display device for hand-held X-ray equipment according to the present invention provides a simple structure and lightweight portability, so that the X-ray equipment can be conveniently used by carrying instead of a stationary type.

The irradiation area display device with handheld X-ray equipment according to the present invention has an LED light source cooling structure to provide efficient heat dissipation and convenient usability.

It is a photograph showing a conical cutting phenomenon. It is a general sensor holder. 1 is an embodiment according to the invention; 1 is an embodiment according to the invention; 1 is an embodiment according to the invention; 1 is an embodiment according to the invention; 1 is an embodiment according to the invention; 1 is an embodiment according to the invention;

FIG. 3 shows an external view of a handheld X-ray equipment according to an embodiment of the invention.

Compared to fixed stationary x-ray equipment, handheld x-ray equipment provides the user with convenient portability. However, when the portable equipment is used for imaging, the alignment of the X-ray beam and the subject is not accurate, which often causes problems such as cone-shaped cutting.

Problems such as cone truncation can be imaged by providing more sensor holders to improve alignment accuracy, but the additional use of sensor holders is inconvenient, has problems with imaging distance, and requires long X-rays. In view of the problem of time exposure, the present invention proposes a device for displaying the X-ray irradiation area inside the radiation port of the handheld X-ray equipment of FIG.

FIG. 4 is an exploded perspective view of the handheld X-ray equipment according to the present invention, in which an irradiation area display device 100 is screwed to a coupling member 200 inside the radiation port.

The handheld X-ray equipment according to the present invention includes an upper cover 100 , a lower cover 200 , an X-ray irradiation part 300 , an emission port 400 , an irradiation area display part 500 and a lower support 600 .

In order for the X-rays emitted from the X-ray irradiation unit 300 to pass through the radiation port 400 and reach the subject accurately, an irradiation area display unit 500 is provided to display the irradiation area in advance in the middle of the path.

If the LED light source provided in the irradiation area display unit 500 is activated before X-rays are emitted, the light emitted from the LED light source passes through the emission port 400 and indicates to the subject in advance the area to be irradiated with the X-rays.

While observing in advance the illumination area of the LED light source shown on the subject, it is possible to confirm with the naked eye whether the area of the subject to be X-rayed is exactly matched and make fine adjustments. When the X-ray irradiation regions are exactly matched, X-rays are emitted from the X-ray irradiation unit 300 to perform imaging.

Preferably, the LED light source and X-ray irradiation are provided with activation switches on the lower support 600 . Preferably, the lower support 600 further includes an equipment power supply (not shown) in addition to the operation switch.

The irradiation area display device 500 disclosed in FIGS. 5, 6, and 7 is composed of a cylindrical member 510, a reflector 520, a PCB guide 530, a PCB 540, an LED light source 550, and a coupling screw 500. be.

The cylindrical member 510 is
a connecting part 511 having a threaded outer diameter so as to be connected to the X-ray irradiation part 300;
A hollow body member 512 formed above the connecting part 511, and a reflecting mirror in which a part of the body member 512 is obliquely cut to form an inclined surface up to the connecting part 511, and the inclined surface is combined with the reflecting mirror. and a coupling portion 513 .

The diameter of the reflector 520 is made so that all X-rays emitted from the rear pass through the slanted surface of the reflector 520 in the minimum range.

The front surface of the reflector 520 is tightly coupled with the reflector coupling protrusion 532 of the PCB guide 530 , which will be described later, and the rear surface thereof is tightly coupled with the coupling portion 513 of the cylindrical member 510 .

Light propagating from the LED light source 550 is reflected by the front surface of the reflector 520 toward the emission aperture 400 .

Reflector 520 passes any X-rays emitted from rear X-ray emitter 300 .

The PCB guide 530 is a guide member that supports the PCB 540, which will be described later.
a pair of main body members 531 formed long in a rectangular shape by being screwed to the reflecting mirror coupling portion 513 of the cylindrical member 510;
a pair of coupling protrusions 532 protruding from one side of the main body member 531 so as to be in close contact with the reflector 520;
a pair of PCB coupling members 533 formed by bending the ends of the body member 531 at right angles in a direction away from the reflecting mirror 520;
The PCB coupling member 533 and the PCB 540 include a pair of thread grooves 534 formed to be screw-coupled with a coupling screw 560, which will be described later.

Preferably, the PDC guide 530 is made of aluminum so as to retain the heat dissipation function.

The PCB 540 is made of aluminum and has a heat dissipation function, and the LED light source 550 is bonded to the PCB 540 with a thermally conductive adhesive at the center of the PCB 540 .

A pair of inwardly bent screw coupling guide portions 541 are further formed on one end surface of the PCB 540 so that the coupling screw 560 screw-couples the PCB 540 and the PCB guide 530 .

FIG. 8 shows an embodiment of a hand-held X-ray equipment according to the present invention in which the exposure area is displayed.

Before performing X-ray imaging of the patient, the user first illuminates the area near the imaging region of the patient with the LED light source, as shown in FIG.

If the central part displayed in the irradiation area does not exactly match the imaging part of the patient, there is a risk that the affected part will not be accurately imaged by the image sensor even if the imaging is performed, and it will be opaque due to the conical cutting phenomenon. A blank image may be generated.

Therefore, after the central part of the irradiation area of the LED light source and the diseased part are precisely aligned by the irradiation area display device according to the present invention, the X-ray beam can be irradiated to obtain a precise and clear image.

Claims (11)

A handheld comprising an upper cover (100), a lower cover (200), an X-ray emitter (300), an emission port (400), an irradiation area indicator (500), and a lower support (600) X-ray equipment,
The irradiation area display device (500) includes a cylindrical member (510), a reflector (520), a PCB guide (530), a PCB (540), an LED light source (550), and a coupling screw (500). , consists of
An irradiation area display device for handheld X-ray equipment, characterized in that the light emitted from the LED light source (550) is reflected by the reflecting mirror (520) to display the irradiation area on an object in front. . The cylindrical member (510) includes a connecting portion (511) having a threaded outer diameter so as to be connected to the X-ray irradiation section (300), and a hollow portion formed above the connecting portion (511). and a reflecting mirror formed by obliquely cutting a part of the main body member (512) to form an oblique surface up to the connection part (511), and the oblique surface being combined with the reflecting mirror. 2. The irradiation area display device of claim 1, comprising a coupling portion (513). The front surface of the reflector (520) is closely coupled with the reflector coupling protrusion (532) of the PCB guide (530), and the rear surface thereof is closely coupled with the coupling portion (513) of the cylindrical member (510), so that the LED 2. The hand-held X-ray equipped irradiation area display device of claim 1, wherein light propagating from the light source (550) is reflected by the front surface of the reflector (520) toward the emission aperture (400). . 4. The handheld of claim 3, wherein the minimum diameter of said reflector (520) is made such that any X-rays emitted from the rear pass through the inclined surface of said reflector (520). X-ray equipped irradiation area display device. The PCB guide (530) is a guide member for supporting the PCB (540),
a pair of long rectangular body members (531) screwed to the reflecting mirror coupling part (513);
a pair of coupling protrusions (532) protruding from one side of the body member (531) so as to be in close contact with the reflecting mirror (520);
a pair of PCB coupling members (533) formed by bending an end of the body member (531) at right angles in a direction away from the reflecting mirror (520);
The PCB coupling member (533) and the PCB (540) are manufactured including a pair of screw grooves (534) formed to be threadedly coupled with coupling screws (560). 2. The hand-held X-ray equipped irradiated area display device of claim 1. 6. The irradiation area display device of handheld X-ray equipment according to claim 5, wherein said PCB guide (530) is made of aluminum. The irradiation area display of handheld X-ray equipment according to claim 1, characterized in that an LED light source (550) is bonded to the PCB (540) by a thermally conductive adhesive at the central portion of the PCB (540). Device. 2. The irradiation area display device of handheld X-ray equipment as claimed in claim 1, wherein a pair of inwardly curved screw coupling guide parts (541) are further formed on one end surface of the PCB (540). The irradiation area display device of handheld X-ray equipment according to claim 1, characterized in that said PCB (540) is made of aluminum to exhibit a heat dissipation function. The irradiation area display device of handheld X-ray equipment according to claim 1, characterized in that a switch for operating the LED light source (550) and the X-ray irradiation part (300) is provided on the lower support (600). a handheld x-ray equipment,
an X-ray irradiation unit for irradiating X-rays;
an X-ray conduit that receives and guides X-rays emitted from the X-ray irradiation unit and outputs them to the outside;
and a reflector mounted within said x-ray conduit for reflecting light emitted from a light source to indicate an x-ray exposure area.

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