KR200305053Y1 - Medical instrument with Microscopic Camera - Google Patents

Abstract

The present invention relates to a medical device having an image capturing means, wherein image information such as an oral cavity is transmitted in order of a prism lens, an image correcting means, a focus adjusting means, a prism filter, and a CCD element, and the electrons are energized with the CCD element. Displayed through a personal computer through a circuit board, it can be output as an image or digital data such as a video or photo, and the half mirror unit, skin treatment unit, endoscope unit at the position where the prism lens is located By combining the according to the application, and relates to a medical device having an image taking means that can be used for a variety of medical purposes.

Description

Medical instrument with imaging means

The present invention relates to a medical device having an image capturing means, wherein image information such as an oral cavity is transmitted in order of a prism lens, an image correcting means, a focus adjusting means, a prism filter, and a CCD element, and the electrons are energized with the CCD element. Displayed through a personal computer through a circuit board, it can be output as an image or digital data such as a video or photo, and the half mirror unit, skin treatment unit, endoscope unit at the position where the prism lens is located By combining the according to the application, and relates to a medical device having an image taking means that can be used for a variety of medical purposes.

As is well known, a dental handle 1 is widely used by a dentist or physician in order to observe a patient's oral condition.

This is a configuration in which the shaft 4 and the reflector 6, on which the handle 2 is formed, have a predetermined angle of inclination, which is one of the medical instruments that can easily observe the dental state or the inside of the oral cavity through the reflector. , As shown in FIG. 1A.

However, the above configuration was a configuration that can observe the inside of the oral cavity only by providing a separate illumination, and took a method of recording and recording the state of the observed object by hand on the chart, so when not in charge of writing Problems have arisen that it is very difficult to grasp easily.

In addition, the image is rotated (mirror direction), the resolution is fixed, the viewing angle (also known as the field of view range) is limited, and at the same time too small for two or more dentists to observe, the image cannot be shown directly to the patient. There was a problem that the patient can not explain the condition of the affected area.

In addition, the mirror handle requires a hand to hold it when used alone or in combination with other dental treatments, and when used in conjunction with other dental treatments, the viewing angle of the mirror is limited to other treatments. There was an inconvenience, such as affecting the function of.

In recent years, endoscopes have been used to replace such dental mirrors. Endoscopes are widely used not only in the medical field but also in other fields, and they typically use a small image sensor (CCD device or image sensor), or provide an image to a monitor by using a flexible optical fiber light guide member and an image sensor. However, such a general endoscope is very limited in its use in the field of dentistry.

For example, most endoscopes are tubular and have a viewing angle of 0 ° (ie, the axis or end of the tube), which makes it impossible to observe the distal end of the tooth.

US Pat. No. 4,858,001, referred to as an image rotary endoscope granted to Milbank, discloses a dental endoscope having many advantages over dental mirrors and endoscopes according to the prior art. However, Millbank's patent does not provide the necessary viewing angle for dental use, it only reverses the image captured by the mirror with limited viewing angle, and the mirror reflector used in Millbank's patent has the problem of changing the direction of the image. .

Another device according to the prior art for providing intraoral imaging is a system in which the optical fiber is permanently modified to provide a viewing angle biased from the main axis of the device. An example of such a device is US Patent No. 5,049,070 to Ademovic.

However, while the device according to the prior art has substantially improved dental imaging, devices employing optical fiber light guide systems have not been able to provide images of good image quality, are expensive, and are biased from the main axis of the device. In the case of observing, constraints are caused by the physical bending radius of the optical fiber.

To overcome the disadvantages of dental reflectors according to the prior art, such as endoscopes and other optical fiber light guides, two types of intraoral imaging systems have emerged in the art, called direct or indirect intraoral video camera systems.

Direct intraoral video cameras use image manipulation optics technology to take images and process them, and focus the images on a small image sensor (CCD element or image sensor). 1B illustrates an example of a direct intraoral video camera. Examples of direct intraoral video cameras are US Pat. Nos. 4,727,416, 5,016,098, 5,051,823, 5,251,025, and 5,290,168 to Cooper.

These direct intraoral video cameras consist of an image manipulation optics (lens or filter), and the image sensor is located at the end where the distal end of the instrument is inserted into the patient's mouth in the case of dental use. Therefore, since the intraoral video camera is inserted into the oral cavity of the patient and used, the size of the intraoral video camera is inevitably limited by the size of the oral cavity. Cooper's patent is a representative example of an intraoral video camera according to the prior art.

The device described in this patent intentionally mimics the form of a dental mirror, which has proved to be efficient, and most dentists are familiar with this form. However, the reflector of the dental reflector is replaced by an optical substrate and an image sensor in Cooper's patent, which, despite the current miniaturization technology, has a considerably thicker configuration than the simple reflector side. The miniaturization of such direct intraoral video cameras is very limited and expensive for current technologies.

Therefore, such mechanisms cannot employ devices that perform a zoom control function, a focus control function, a compound filter function, an automatic control function, and the like. However, direct intraoral video cameras have the advantage that, by means of a simple lens-sensor structure, they provide a wide viewing angle and have a high resolution and a fixed depth of focus.

This structure provides a significantly simplified configuration compared to other structures using optical fibers, relay lenses or rod lenses.

Figure 1c is an embodiment in which the prior art is applied to increase the physical separation between the image capturing-reflection optics and the image sensor of the indirect intraoral video camera using the image relay optics, having a configuration in which the camera is mounted in the handle of the instrument. Thus, in the case of indirect intraoral video cameras, "US 5,124,797" to Williams, which does not directly insert the camera into the patient's mouth, is an example of a technique using such relay optics. to be.

By using relay optics, the distal end of the intraoral video camera needs only to be equipped with image capturing optics, and image cultivation such as a reflector for transferring captured images from the distal end to the handle of the device when designed to obtain lateral or inverted images. Incense means are needed. Since the image sensor is mounted on the handle of the indirect intraoral video camera, the indirect intraoral video camera does not need to be compact to be inserted into the human oral cavity. In addition, as implied in the above description, it can be manufactured at a low cost using a large image sensor. Furthermore, an indirect intraoral video camera can be manufactured to employ an image sensor assembly that includes a zoom control function, a focus control function, a composite filter function, and an automated automatic control unit for controlling them.

However, indirect intraoral video cameras having the above-described configuration have not been proposed yet, and by using the relay optics, structural problems such as a complicated configuration, a narrow viewing angle, a low resolution and a shallow depth of focus have occurred.

Therefore, there has been a need in the art for a medical apparatus having an imaging means capable of observing a direction biased from the main axis of the apparatus, but having a short focal length, and capable of obtaining fine high resolution images.

Therefore, it should be possible to provide the advantages of the dental observation system according to the prior art as it is. These advantages should be user-friendly high resolution images, adjustable image magnification, variable focus, easy to use, have sufficient and deep depth of focus and lighting capability, and should be modular. It should be able to be combined with other medical devices, be able to be manufactured as a module together with other medical devices, have low reactivity to laser irradiation, and use cleaning or sterilization methods commonly used in the medical field such as high pressure or chemical treatment. It should be easy to apply.

Accordingly, the object of the present invention is to facilitate the use of other dental tools, as well as to accurately determine the shape and structure of the oral cavity at the time of dental examination, treatment, surgery and such measures. It is to provide a medical device having an improved imaging means.

Another object of the present invention is to display an image of an object to be observed by a personal computer in the order of a prism lens, an image correction means, a focus control means, a prism filter, a CCD element, and an electronic circuit board, and display the real-time video or An object of the present invention is to provide a medical apparatus having an image capturing means capable of outputting the same image and storing the data as digital data.

Another object of the present invention is a medical device for various uses, such as a half mirror unit employing a semi-transmissive half mirror, a skin treatment unit configured to enable skin examination and treatment, and an endoscope unit including an optical fiber and an endoscope. By modularizing the tool to be detachable, there is provided a medical device having an image capturing means that can be used for various purposes as a single medical device.

Another object of the present invention is to provide a high-quality image with a simple configuration, and to provide a zoom control, a focus control function, a composite filter function, an automatic control function, as well as a compact production, An object of the present invention is to provide a medical device having an imaging device that can maximize the work efficiency of a specialist.

1A is a cross-sectional view showing a longitudinal cross-sectional view of a conventional mirror handle.

1B and 1C are schematic internal configuration diagrams of a conventional intraoral imaging system video camera system.

Figure 2 is a schematic internal configuration diagram of a medical instrument having an image pickup means according to the present invention

Figure 3 is an enlarged view of the main use state showing the enlarged operating state of the main portion of the medical instrument having an image pickup means according to the present invention

4 is a longitudinal sectional view of a half mirror unit detachable from a medical apparatus having an image photographing means according to the present invention;

Figure 5 is a longitudinal cross-sectional view of the unit for skin treatment detachable to a medical instrument having an image pickup means according to the present invention

Figure 6 is a longitudinal cross-sectional view of the endoscope unit detachable to a medical instrument having an imaging device according to the present invention

※ Description of the reference numerals for the main parts of the drawings

1: A medical device having an imaging device according to the present invention

10: tip 20: body

30: focus adjusting means 40: image correction means

60: electronic circuit board 70: prism lens

80: prism filter 90: CCD element

100: half mirror unit 200: skin treatment unit

300: endoscope unit

As a constitution of a medical instrument having the image capturing means of the present invention for achieving the above object, in a medical instrument comprising an image capturing means using a prism and a CCD element, a planar convex lens is formed on a part surface on which image information is incident. A prism lens attached thereto; A prism filter, which is spaced apart from the prism lens by a predetermined distance, and has a CCD element coupled to and coupled to a part surface from which image information is emitted; Focus adjusting means for adjusting the focus of the image information by being positioned and displaced between the prism lens and the prism filter; At least one convex lens and a concave lens are each focused between a part surface emitted from the prism lens and the focus adjusting means, and between a part surface into which image information of the prism filter is incident and the focus adjusting means. Image correction means of the state;

Variable positioning means for varying the focus adjusting means; An electronic circuit board for converting the electrical signal transmitted from the CCD device into the image information; and accommodates therein, the body is in communication with the tip by forming an obtuse angle with the tip: Have

Preferably, the distal end portion further includes an opening in which a portion of the prism lens into which the image information is incident is circularly open and a thread is formed in the portion of the open prism lens.

An optical sensor mounted around the opening; It is preferable to further include; at least one illumination light source controlled by the optical sensor and configured in the body to illuminate the opening.

Preferably, the electronic circuit board further includes a brightness control module for controlling brightness so that the illumination light source emits light at a constant brightness.

The electronic circuit board further includes a magnification control module for enlarging or reducing image information sensed by the CCD element, and electronically enlarging or enlarging an image by manipulation of a magnification adjustment button formed at a predetermined portion of the body. It is desirable to be able to shrink.

The prism filter may be a blue color, a cyan color, or a different color, so that color correction of incident image information is performed and then emitted to the CCD element.

The focus adjusting means is a tubular body formed with a spiral male screw on an outer circumferential surface, and includes a focus adjusting lens fixedly coupled to the inner circumferential surface; The inner circumferential surface of the distal end engaging with the focus adjusting means engages with the male screw by forming a female screw having a length greater than that of the focus adjusting means, and each end portion thereof protrudes to prevent the detachment of the focus adjusting means. Protruding; is preferred.

The variable position means, the reduction motor is mounted to the inside of the body; A power transmission shaft having one end engaged with the main shaft of the reduction motor; Cylindrical gear is coupled to one end is engaged with the male screw and female screw, the other end is driven shaft to engage the worm gear and the other end of the power transmission shaft; by the forward or reverse rotation of the reduction motor, by adjusting the focus It is preferred to displace the means,

It is preferable that the driven shaft passes through a side portion of the prism filter.

And a half mirror unit having a half mirror facing the prism lens and a half mirror bracket for fixing the half mirror and screwing to the opening.

A convex lens-shaped magnification lens facing the prism lens and a treatment tool inlet hole which is integrally formed to fix the magnification lens so as to form a predetermined space therein, and penetrates one side of the space part; And a skin treatment unit which is screwed with the opening by including a surgical hole in which a portion of the bottom surface facing the expansion lens and adjacent to the surgical tool inlet hole passes through a predetermined shape.

A housing that is screwed into the opening by having a convex lens-type magnifying lens facing the prism lens and a space portion in which the magnifying lens is fixed but whose interior is closed; An endoscope is mounted at one end of the optical fiber, and the other end thereof further includes an endoscope unit formed by penetrating a portion of the housing corresponding to the central portion of the magnifying lens.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, these embodiments are for illustrative purposes only, and the technical idea of the present invention is not limited to these embodiments.

2 is a schematic internal configuration diagram of a medical instrument 1 having an image capturing means according to the present invention, and FIG. 3 is an enlarged operating state of the main part of the medical instrument 1 having an image capturing means according to the present invention. This is an enlarged view of the main use state.

2 to 3, the front end portion 10 and the body 20 of the tubular body is configured to have an inclination of the obtuse angle (鈍角).

The distal end portion 10 includes an opening 11 having a circular opening at a cutting edge of the portion faced toward the body 20, and has a female thread 11a on a circular inner diameter constituting the opening 11. ) Is formed.

On the inner surface of the tip portion 10 in which the opening 11 is formed, the optical sensor 12 in a state of being energized with the electronic circuit board 60, and the planar convex lens 72 on the portion facing the opening 11. The prism lens 70 which is firmly adhesively fastened by heating fusion or adhesive means is fixed, and the prism filter 80 in which the CCD element 90 is fastened to the site surface where the image information is output is fixed. ) Is fixedly fastened on the inner surface of the tip portion 10 in a state of being spaced apart from the predetermined distance.

The prism filter 80 has a blue color, a cyan color, or a different color, and then corrects the incident image information and emits the color to the CCD device 90. It is configured to obtain clear image information.

More specifically, a spiral female screw 13 is formed on the inner circumferential surface of the tip portion 10 between the prism lens 70 and the prism filter 80, and the male screw 31 meshes with the female screw 13. ) Is a tubular body shape formed on the outer circumferential surface, and the focus adjusting means 30 is formed by fixedly mounting the focus adjusting lens 33, which is a convex lens that obstructs the inner circumferential surface thereof.

Each end portion of the female screw 13, it is preferable that the separation prevention jaw (13a) protruding to prevent the departure of the focus control means 30 is formed.

As the configuration of the variable positioning means (not shown) for the focus adjusting means 30 to vary the position on the female screw 13, the reduction motor 51 seated inside the body 20, and one side end The power transmission shaft 52 meshes with the main shaft 51a of the reduction motor 51, and the cylindrical gear 53a meshes with the male screw 31 and the female screw 13 at one end thereof. The other end includes a driven shaft 53 which is engaged with the other end of the power transmission shaft 52 and the worm gear 52a, so that the power transmission shaft 52 by the forward rotation or the reverse rotation of the reduction motor 51, As the driven shaft 53 and the cylindrical gear 53a axially coupled thereto are rotated, the focus adjusting means 30 engaged with the driven shaft 53 can be displaced on the female screw 13, thereby entering through the prism lens 70. The scanned image information is scanned on the prism filter 80, and the focus thereof can be finely adjusted.

At this time, the fixing bracket (14, 24a, 24b) on the inner circumferential surface of the front end portion 10 and the body 20 to prevent the driven shaft 53 and the power transmission shaft 52 from being separated by the rotational repulsive force It is configured to be able to perform the role of safe power transmission by being rotatably held by the driven shaft 53 and the power transmission shaft 52 rotatably.

In addition, the driven shaft 53 is configured to be adjacent to the inner circumferential surface of the tip portion through the side portion of the prism filter 80, so that image information is not transmitted to the CCD element 90. It is preferred to be configured to not.

However, the above-described configuration alone cannot prevent distortion of the image and prevent the loss of a large amount of image information. As a configuration of the image correction means 40 for preventing this, between the portion surface emitted from the prism lens 70 and the focus adjusting means 30, and the image information of the prism filter 80 is incident Between the site surface and the focus adjusting means 30, each of the first image correction part having the convex lens 41, 45, 47 and the concave lens 42, 43, 46 spaced apart by a predetermined distance, respectively; 40a) and the second image correction unit 40b are fixedly fastened on the inner circumferential surface of the tip portion 10 to prevent distortion of the image. This is a common construction method for performing the same configuration and role as the light collecting means widely used throughout the technical field using the optical.

In addition, by coating the inner circumferential surface of the tip portion 10 in a black series or by forming the inner circumferential surface so as to have the above-described color at the time of manufacture, it is possible to prevent the diffuse reflection of the beam-shaped image information, and the translucent phenomenon of half mirror It is preferable to configure so as to implement a clear display image information by increasing the.

In addition, the cutting edge of the tip portion 10 is characterized by being inserted into the oral cavity, such as a person, it is impossible to photograph and observe these without a separate lighting device. As a configuration for solving this, the illumination light source 23 for illuminating the opening 11 of the body 20 is configured, it is composed of a plurality of (23a, 23b), but the position and angle between each other is configured Thus, the opening 11 and its surroundings can be evenly illuminated, thereby facilitating observation, photographing, and the like of the observation object.

In addition, the illumination light source 23 is energized with the electronic circuit board 60 is turned on / off (On / Off) by the operation of the optical sensor 11, as well as on the electronic circuit board 60 The on-board brightness control module (not shown) automatically performs the brightness control, thereby providing a light source having a constant brightness at all times. Therefore, when the opening 11 is located inside the mouth, it is to provide a light source of automatic on / off and constant brightness.

In addition, the electronic circuit board 60 has a magnification control module (not shown) capable of enlarging or reducing image information sensed by the CCD device 90, thereby providing a predetermined portion of the body 20. Preferably, the image captured by the manipulation of the formed zoom control button 21 can be enlarged or reduced electronically by a conventional digital zoom system.

In addition, a focus adjustment button 22 for variably positioning the focus adjustment means 30 is formed at a peripheral portion of the magnification adjustment button 21 and is connected to the electronic circuit board 60, thereby making it easier to adjust the focus. Is configured to be carried out automatically or manually.

4 is a longitudinal sectional view of the half mirror unit 100 detachably attached to the medical apparatus 1 having the image capturing means according to the present invention, and a half mirror bracket 120 for fixing the half mirror 110 is provided. The male screw portion 121 screwed to the thread 11a of the opening 11 has a configuration of the half mirror unit 100 formed on the outer circumferential surface of the half mirror bracket 120.

The half mirror unit 100 having the above-described configuration is detachable by being screwed with the opening 11, and the half mirror 110 is positioned to face the prism lens 70 so that image information is stored in the prism. It is possible to transmit to the lens 70.

Such a constitutional feature may be attributable to the characteristic of the half mirror 110. The half mirror 110 is generally used, and has a semi-transmissive property. When the observation object is illuminated, the reflected image information is partially reflected by the half mirror 110 and at the same time, the image information is transmitted to the prism lens 70. Therefore, the user can visually identify, and at the same time be provided with a display image screen of clear image quality that is not distorted by the system.

This is a method that is not presented in the prior art, it is a configuration that can further maximize the user's convenience.

FIG. 5 is a longitudinal sectional view of a skin treatment unit 200 detachable to a medical instrument 1 having an image capturing means according to the present invention, and has a configuration detachable to a thread 11a of the opening 11. , Which illustrates a medical tool capable of performing procedures such as skin observation and treatment.

In more detail, the convex lens-shaped magnification lens 230 facing the prism lens 72 and the magnification lens 230 are fixed, but integrally to form a predetermined space portion 220 therein. It is formed, adjacent to the surgical tool inlet hole 250 of the surgical tool inlet hole 250 penetrating one side constituting the space portion 220 and the bottom surface 210 facing the expansion lens 230. At least one or more through-holes 240 having a predetermined shape and a light inlet hole 260 penetrating through a portion corresponding to the illumination light source 23 are formed.

Looking at the operation principle according to the above configuration, if the bottom surface 210 and the skin surface in close contact, the image information of the skin surface is extended to the prism lens 70 through the magnification lens 230, the display Image information can be obtained, and again, the image information captured by the magnification control module can be electronically enlarged or reduced, so that the microstructure can be observed.

When the treatment or procedure is required, the treatment tool may be inserted through the treatment tool inlet hole 250 to treat or perform the treatment of the skin surface exposed by the treatment hole 240, and display and store such a manufacturing process. Of course it can be carried out.

FIG. 6 is a longitudinal sectional view of the endoscope unit 300 detachable to the medical apparatus 1 having the image capturing means according to the present invention, and shows a configuration that can be mainly used for medical purposes.

More specifically, the opening 11 is provided by a convex lens-shaped magnifying lens 330 facing the prism lens 70 and a space 320 fixed to the magnifying lens 330 but occluded therein. A housing 310 formed with a thread 312 to be screwable thereto; An endoscope 342 is mounted at one end of the optical fiber 344, and the other end of the optical fiber 344 penetrates through a portion of the housing 310 corresponding to the central portion of the expansion lens 330 and is screwable. It has the structural features of the endoscope unit 300 consisting of a member (346).

The above configuration may be used for medical purposes, and the image information introduced through the endoscope 342 and the optical fiber 344 may be enlarged by the magnification lens 330 and the prism lens may be formed through the opening 11. 70) has the operating principle that is incident to, and can be enlarged or reduced, displayed and stored by the above-described image implementation system is the same as described above.

The above configuration can be variously modified within the technical scope of the present invention.

For example, the plurality of convex lenses 41, 45, 47 and concave lenses constituting the prism lens 70, the prism filter 80, and the image correction means 40 may be formed by the size of the CCD element 90. 42, 43, 46) may be configured differently. For example, when using the CCD element 90 miniaturized in the form of an ultra-thin film, the focal length of the above-described structure becomes shorter, and thus, the plurality of convex lenses 41, 45, constituting the image correction means 40, 47) and the concave lenses 42, 43, 46 are both difficult to configure. Therefore, the number and size of the plurality of convex lenses 41, 45, 47 and concave lenses 42, 43, 46 deserve to be changed, and thus, the ultra-thin tip having a shorter focal length and a smaller length. Can be implemented.

According to the above-described configuration and operation principle, not only the afterimage or the distortion-free image is provided in real time, but also the focal length is very short, so that the length of the tip portion can be shorter, and the weight and size can be reduced.

In addition, by using a half-mirror having a semi-transmissive property, the visual observation of the object to be reflected is visually identified, and the image information transmitted through the half mirror is monitored by a personal computer or a medical device by a CCD device or the like as well as digital data. It is possible to provide a user's working environment, to shorten the working time and to precisely work, such as storing and outputting a photo image.

In addition, since the medical tools modularized for each of the above-mentioned uses are detachable, they also have the effect of easily replacing them according to the use.

In addition, since it is also possible to modularize and detach industrial and industrial tools for observation and image recording purposes, it will be said that the utility is very wide.

Claims (12)

A medical apparatus comprising an image photographing means using a prism and a CCD element, A prism lens having a planar convex lens attached to a site surface on which image information is incident; A prism filter, which is spaced apart from the prism lens by a predetermined distance, and has a CCD element coupled to and coupled to a part surface from which image information is emitted; Focus adjusting means for adjusting the focus of the image information by being positioned and displaced between the prism lens and the prism filter; At least one convex lens and a concave lens are each focused between a part surface emitted from the prism lens and the focus adjusting means, and between a part surface into which image information of the prism filter is incident and the focus adjusting means. Image correction means of the state; Variable positioning means for varying the focus adjusting means; An electronic circuit board for converting an electrical signal transmitted from the CCD into image information; and accommodating therein and forming an obtuse angle with the distal end to communicate with the distal end; Medical apparatus having a. The method of claim 1, wherein the tip portion, And an opening in which a screw thread is formed on a portion of the prism lens into which the image information is incident, the circular opening being opened, and the opening of the portion of the prism lens. The method according to claim 1 or 2, An optical sensor mounted around the opening; And at least one illumination light source controlled by the optical sensor and configured to be configured on the body to illuminate the opening. The method of claim 3, wherein the electronic circuit board, And a brightness control module for controlling brightness so that the light source for illumination emits light with a constant brightness. The method of claim 1, wherein the electronic circuit board, Further comprising a magnification control module for enlarging or reducing the image information sensed by the CCD element, it is possible to electronically enlarge or reduce the image by the operation of the magnification control button formed on a predetermined portion of the body. A medical instrument comprising an image photographing means. The method of claim 1, wherein the prism filter, And a blue color or a cyan color, or a different color thereof, to correct color of incident image information, and to emit the image information to the CCD device. The method of claim 1, wherein the focus adjusting means, A tubular body having a spiral male thread formed on an outer circumferential surface thereof, and having a focusing lens fixedly coupled to the inner circumferential surface; The inner circumferential surface of the distal end engaging with the focus adjusting means engages with the male screw by forming a female screw having a length greater than that of the focus adjusting means, and each end portion thereof protrudes to prevent the detachment of the focus adjusting means. A medical instrument having an image capturing means, which is inclined. The method of claim 1 or 7, wherein the variable position means, A reduction motor seated inside the body; A power transmission shaft having one end engaged with the main shaft of the reduction motor; Cylindrical gear is coupled to one end is engaged with the male screw and female screw, the other end is driven shaft to engage the worm gear and the other end of the power transmission shaft; by the forward or reverse rotation of the reduction motor, by adjusting the focus A medical instrument comprising imaging means characterized by displacing the means. The method of claim 8, wherein the driven shaft, Medical device having an image taking means, characterized in that passing through the side of the prism filter. The method according to claim 1 or 2, And a half mirror unit having a half mirror facing the prism lens and a half mirror bracket for fixing the half mirror and screwing the opening to the opening. The method according to claim 1 or 2, A convex lens-shaped magnification lens facing the prism lens and a treatment tool inlet hole which is integrally formed to fix the magnification lens so as to form a predetermined space therein, and penetrates one side of the space part; And a skin treatment unit screwed to the opening by including a surgical hole in which a part surface adjacent to the surgical tool inlet hole of the bottom surface facing the magnifying lens is penetrated into a predetermined shape. A medical device having means. The method according to claim 1 or 2, A housing configured to convex a convex lens-shaped magnifying lens facing the prism lens, and a space portion in which the magnifying lens is fixed but whose interior is occluded so as to be screwed to the opening; An endoscope is mounted on one end of the optical fiber, and the other end of the optical fiber further comprises an endoscope unit formed through a portion of the housing corresponding to the central portion of the magnifying lens. Medical apparatus.