KR20020040568A - Image diagnosis medical device with a wheel for manual adjustment of magnification - Google Patents

Abstract

PURPOSE: An image diagnosis apparatus for medical appliances having a manual magnification control wheel is provided to easily control a magnification and efficiently diagnose an image by using a USB interface and providing a specially manual magnification control wheel. CONSTITUTION: All kinds of elements are mounted on a substrate(210). A connector(213) is connected to an external display device. A controller(215) controls an illumination and a camera element. A CMOS element(217) performs a camera element function. A light source(219) illuminates a tested object. An external is led in an inner barrel(220). A light source irradiating device(221) collects and irradiates a light from the light source(219). A tip(230) includes a lens group which magnifies or reduces an image from a tested object by a predetermined magnification. A wheel(250) manually adjusts a lens magnification. A first outer barrel(285) shields the tip(230) and inner barrel(220). A second outer barrel(280) is mechanically connected to the first outer barrel(285). A slide prevention handle(287) is attached to the second outer barrel(280) and prevents a slide of a hand when holding it by the hand.

Description

Image diagnosis medical device with a wheel for manual adjustment of magnification

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an imaging device for medical devices having a manual scaling wheel, and more particularly, to an imaging device for an ergonomic medical device employing a USB interface and including a manual scaling wheel. will be.

In general, an image diagnosis apparatus for a medical device using a camera enlarges a body part (patient's hair, skin, iris, teeth, and uterus, etc.) that is difficult to check with the naked eye at the time of medical examination, and records the captured image signal as a digital signal. After converting, perform the function to display on the screen.

FIG. 1A illustrates a block diagram of a conventional apparatus for diagnosing an image of a medical device, the lens 101 focusing to collect light from a subject and generated by the light of the subject incident through the lens 101. A CCD (Charge-Coupled Device) 102 that accumulates and converts electric charges into an electrical signal, and a CCD driver 103 generating a control signal to output an electrical signal of a subject stored in the CCD 102 according to a predetermined voltage level. The signal processing unit 104 converts the electrical signal output by the CCD 102 into a digital image signal and encodes the signal for transmission. The display unit 105 receives the digital image signal and outputs the received digital image signal to a TV or a monitor. It is composed of

The lens, the CCD, the CCD driver, and the signal processor are integrally integrated to form an integrated camera for diagnosis. In order to display the digital image signal processed by the signal processor, the digital image signal is displayed by connecting to the display unit by wire.

1B is a block diagram of another conventional imaging apparatus for medical devices.

The imaging apparatus for a medical device illustrated in FIG. 1B is largely composed of a tip 130, a connector 140, and a handpiece 150.

The tip is composed of two parts, an outer cylinder and an inner cylinder. The left end of the outer cylinder has a reflector, and a light emitting diode is provided at the right end of the outer cylinder. In addition, a plurality of lenses are disposed in the inner cylinder. The next stage of the light emitting diode has a focus adjuster, and the next stage of the focus adjuster is a handpiece section, and the handpiece section includes a CCD camera module and an image memory board.

The light emitting diode is a light source for dimming an inspection object, and replaces a halogen lamp which is a conventional light source. By using such a light emitting diode, it is possible to emit high brightness white light and to make it compact.

In addition, the CCD camera module is composed of a CCD camera and a control circuit for controlling the CCD camera, and stores the incident image of the inspected object as digital data, and the stored data is output to the next image memory board.

The image memory board is a kind of frame grabber. The image memory board is a part that outputs the image data processed by a display device such as a monitor by processing the image of the inspected object input from the CCD camera module in various forms. The image memory board can output an image signal in two types of NTSC or PAL. When the image signal is output to an external video device such as a TV or a monitor, the image memory board can be enlarged to an enlarged screen. It is possible to see.

Such a conventional imaging device for medical devices uses a halogen lighting device, so that a large amount of heat is generated and requires a cooling device. As a result, it has been inevitably bulky. In recent years, light emitting diodes have been used instead of halogen lamps.

On the other hand, the conventional image diagnosis apparatus for medical devices uses a CCD image sensor as an image sensor, but the CCD image sensor has a problem that requires a great burden in terms of price.

In addition, a conventional imaging device for medical devices requires a separate voltage drop adapter to use general power, and by receiving the image data through a CCD image sensor and transmitting the analog data to a computer, separate AC / DC Is needed. Therefore, the volume is bound to be large, and thus there is a limit to the miniaturization to a portable.

In addition, the conventional image diagnosis apparatus for medical devices having such a configuration requires a separate image storage device, and according to the tip and lens integrated type, various magnifications and sizes may be obtained depending on which part of the affected area is to be diagnosed. There is a problem in that it is necessary to prepare and diagnose by having an imaging device having a type.

An object of the present invention for solving the problems of the prior art as described above is to provide an image diagnosis apparatus for an ergonomic medical device employing a USB interface, and having a manual scaling wheel.

1A is a block diagram of a conventional imaging apparatus for medical devices,

1B is a block diagram of another conventional imaging apparatus for medical devices,

2 is an exploded view showing the configuration of an image diagnosis apparatus for a medical device according to an embodiment of the present invention;

3A is a final assembled perspective view of an imaging apparatus for a medical device;

3B is a final assembly plan view of an imaging apparatus for a medical device;

3C is a final assembled vertical cutaway view of an imaging device for medical devices;

4A is a plan view illustrating design dimensions of an image diagnosis apparatus for a medical device according to an embodiment of the present invention;

4A is a side view illustrating design dimensions of an apparatus for diagnosing a medical device according to an embodiment of the present invention;

5A is an exemplary view illustrating a case where an image diagnosis apparatus for a medical device is used according to an embodiment of the present invention.

5A is another exemplary view illustrating a case where an imaging apparatus for a medical device is used according to an embodiment of the present invention.

6 is an internal functional block diagram of an image diagnosis apparatus for a medical device according to an embodiment of the present invention.

※ Explanation of code about main part of drawing ※

100: lens 101: CCD

102 CCD driver 103 signal processor

120: display portion 210: substrate

213 connector 215 controller

217: CMOS 219: light source

220: inner cylinder 221: light source irradiation unit

230: tip 240: rack

250: wheel 270: capture button

285: first outer cylinder 280: second outer cylinder

287 knob 290 illuminance control switch

In order to achieve the above object, according to the present invention, in the imaging device for a medical device for imaging the subject by receiving light through the light source in the front end, a light source having a plurality of light emitting diodes for dimming the subject ; A light source irradiator for collecting light from the light source; A tip having a lens group configured to receive an image incident from an inspected object and enlarge or reduce the image at an appropriate magnification; A rack for manually adjusting the magnification of the lens on an upper side of the tip; A wheel having a pinion gear attached to the rack, an upper end of which is exposed to the outside, and a wheel converting a rotational motion into a reciprocating motion of the rack; A CMOS device which receives an image of the object from the tip and performs digital conversion; A USB connector for transmitting the digital data converted by the CMOS device to an external console; A controller unit which controls a illuminance of the light source and a CMOS device; A substrate on which the elements are mounted; A first outer cylinder surrounding the tip and the inner cylinder and serving as an outlet of light emitted from the light source; A second outer cylinder mechanically coupled to the first outer cylinder and serving as a support; And a non-slip handle attached to the second outer cylinder and configured to prevent slipping when the second outer cylinder is held by hand. Includes, the second outer cylinder is provided with a medical diagnostic imaging device having a manual scaling wheel, characterized in that designed to be streamlined.

In addition, in the method of controlling the illuminance of the light source of the image diagnostic apparatus for a medical device having the manual scaling wheel, the flicker of the light emitting diode according to the peripheral illuminance, dividing the whole step into n steps to a predetermined frequency There is provided an illuminance control method characterized by determining an optimal illuminance illuminance by repeating a flickering operation of the light emitting diode.

Hereinafter, an image diagnosis apparatus for a medical device having a manual scaling wheel according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is an exploded view showing the configuration of an image diagnostic apparatus for a medical device according to an embodiment of the present invention, the image diagnostic device for a medical device is a substrate 210 on which various elements are mounted, a connector connected to an external display unit 213, a controller unit 215 for controlling lighting and camera elements, a CMOS element 217 serving as a camera element, a light source 219 composed of a plurality of light emitting diodes for dimming an object to be inspected, external An inner cylinder 220 for introducing an image from the light source, a light source irradiating unit 221 for collecting light from the light source 219, and a tip having a lens group that receives an image incident from an inspected object and enlarges or reduces it at an appropriate magnification ( 230), the wheel 250, the pinion gear is installed to manually adjust the lens magnification, by changing the rotational motion of the wheel to the reciprocating motion of the tip, the operation of the manual wheel Wraps the rack 240 for adjusting the lens magnification, the tip 230, and the inner cylinder 220, and surrounds the first outer cylinder 285 and the substrate 210, which serve as outlets of light emitted from the light source. A second outer cylinder 280 mechanically coupled to the first outer cylinder and a second outer cylinder are attached to each other, and have a non-slip handle 287 to prevent slipping when the second outer cylinder is held by hand.

In addition, the second outer cylinder 280 is characterized in that it is configured in a streamlined shape to hold more comfortable, easy to operate when holding by hand.

In addition, the first outer cylinder 285 is characterized in that it can be separated from the second outer cylinder 280 to be interchangeable according to the purpose.

In addition, the first outer cylinder (285) is characterized in that a reflector for reflecting the light irradiated from the light source to illuminate the inspection object.

Referring to the operation of the image diagnostic apparatus for medical devices according to an embodiment of the present invention.

First, the light source 219 is composed of a plurality of light emitting diodes (LEDs), and serves as a camera illumination unit, the light emitted from the light source is collected through the light source irradiation unit 221, the first It is discharged to the test object through the outer cylinder (285). In this case, the total reflection mirror may be attached to the end of the first outer cylinder 285 so as to form a predetermined inclination to the portion facing the image diagnosis apparatus so as to freely inspect the inspected object regardless of the position and angle of the inspected object.

In addition, the light emitted from the LED is transmitted through the optical fiber installed in the space between the inner cylinder 220, the first outer cylinder 285 and the second outer cylinder 280.

In addition, the following algorithm is adopted to automatically adjust the illumination by the light emitting diode.

That is, the flashing period (flashing) of the light emitting diode is divided according to the ambient illuminance, and the whole step is divided into nine levels to repeat the on / off operation of the light emitting diode at a frequency of 1 KHz.

That is, step 1 turns on the LED for 0.1 ms, turns off for 0.9 ms,

Step 2 turns on the LED for 0.2 ms, turns it off for 0.8 ms,

Similarly define steps 3-8,

Step 9 turns the LED on for 0.9 ms and off for 0.1 ms.

By controlling the average current flowing in the LED in this manner, the lighting is controlled. Such lighting control is in charge of the controller unit 215, and receives the illuminance of the external environment to turn on the LED with appropriate brightness.

In addition, the lighting control of the LED may be manually operated by a separate switch, which is illustrated at 290 of FIG. 2.

On the other hand, the lighting control method has a problem that it takes a little time before the user to turn on the power, it must be performed sequentially from step 1, to obtain the appropriate lighting. In order to solve this problem, by installing a separate EEPROM on the substrate 110, when the user remembers the setting previously used and turns on the power, the user returns to the previous setting state.

In addition, a tip 230 having a lens group for receiving an image incident from the inspected object to be enlarged or reduced at an appropriate magnification is installed, and a CMOS for receiving the enlarged or reduced inspected image of the inspected object and converting the image into a digital signal. Since the element 217 is provided, the present invention has the greatest difference from the prior art. That is, the conventional medical imaging apparatus for medical devices performs a function as a camera element by installing a CCD, but the present invention is characterized by installing a CMOS having a lower cost.

On the other hand, since the CMOS is lower than the CCD in terms of noise compared to the CCD, in order to overcome this, when mounting the CMOS elements and various elements on the substrate, the following rules are followed.

First, in the case of projection processing, use 4-LAYER PCB, distribute the ground pattern as much as possible, connect the pattern length between the pins to the minimum length, and make the pattern as possible, do not make the angle (Angle), The gap between them should be kept at least 0.5mm away from each other so that there is no interference during insertion.

In addition, the image signal digitally converted by the CMOS element 217 is transmitted to the outside through the connector 213. In the present invention, the connector is configured using USB. That is, conventionally, by using a serial port or parallel port, which is a general computer standard interface, a separate power line is required in addition to the data transmission line, and since a general power is used, a separate adapter must be installed inside the imaging apparatus. However, by using the USB standard interface, it is possible to obtain the power required directly from the USB host without having to provide a separate power supply unit, so that the configuration can be realized more simply.

In addition, in the prior art, a separate AC / DC is required when transmitting to a computer, but the present invention requires a separate AC / DC by directly outputting a digitized image at the time of image acquisition by directly using a USB data transmission / reception line. I did not do it.

In addition, although a conventional image storage device is separately configured, the present invention designs and installs a memory interface circuit so that the digitized image is immediately stored in a flash memory or a DRAM, thereby providing a more inexpensive image diagnosis device than the conventional method. It was done.

In addition, as shown in 270 of FIG. 2, a separate capture button is provided so that when a still image is required, the capture button can be immediately stored by pressing the capture button.

On the other hand, the image diagnostic apparatus for medical devices according to an embodiment of the present invention, as shown in Figure 2, of the tip 230 is provided with a lens group for receiving an image incident from the inspected object to enlarge or reduce at an appropriate magnification By installing a rack 240 to manually adjust the lens magnification on the upper side, and laying a wheel 250 with a pinion gear on the rack, by exposing the upper end of the wheel to the outside, the user By using a finger, the lens magnification can be adjusted directly.

That is, when a high magnification is required or a low magnification is required according to the affected part of the test object, conventionally, there was no method of directly controlling it. Maximized.

In addition, according to an embodiment of the present invention, the tip and the lens are configured in one piece, so that the tip is detachably configured, by changing the tip from time to time as needed, so that it can be used more easily in various treatment subjects. .

In addition, the plurality of lenses inside the tip is composed of a micro machine vision lens (overlapping lenses), it is possible to perform a magnification change more easily.

In addition, since the plurality of lenses inside the tip uses a 99% light transmittance mirror, it is possible to reduce the frequency of the generation of virtual images as compared to ordinary glass.

In addition, a plurality of lenses inside the tip may use a cut-off filter to make a clearer image.

3A to 3C are final assembly views of the imaging apparatus for medical devices shown in FIG. 2, FIG. 3A is a perspective view of the imaging device for medical devices, FIG. 3B is a plan view, and FIG. 3C is a vertical cutaway view.

As illustrated in FIGS. 3A to 3C, in the image diagnosis apparatus according to the exemplary embodiment, the handle part is ergonomically designed and processed in a streamlined fashion. In addition, when the hand is wrapped around the image diagnosis apparatus, a wheel with a pinion gear for adjusting the lens magnification is installed at a portion where the index finger is positioned, and is designed to allow the user to easily adjust the lens magnification.

4A and 4B are plan and side views illustrating design dimensions of an image diagnosis apparatus for a medical device according to an embodiment of the present invention.

As described above, the handle portion of the imaging device is designed to be streamlined, and the second outer cylinder portion in contact with the first outer cylinder is treated with R241.5, and the end is treated with R2557.3.

In addition, as shown in FIG. 4B, the second outer cylinder is designed to have an upper side of the portion in contact with the first outer cylinder at R205.1, a next portion at R465.7, and a next portion at R549.4 ( This change is a continuous change), the lower part is R391.7, the next part is R85.9, the next part is R568.7, and the next part is R563.0 (these are continuous changes). .), From the upper side to the lower side, the overall design is streamlined to make it more comfortable and easier to handle when held by hand.

In other words, by numerically calculating the average user's arm, wrist, and finger movements, an ergonomic design is applied, resulting in a more user-centric shape.

5A and 5B are exemplary views illustrating a case where an image diagnosis apparatus for a medical device is used, according to an embodiment of the present invention.

5A illustrates a case in which an image diagnosis apparatus for a medical device is connected to a computer, and an image diagnosis apparatus 430 for a medical device is connected to a PC 420, and the photographed test object is photographed through the display unit 410. Is shown.

Conventionally, a separate general power source 440 is required by not employing a USB interface. However, the apparatus for diagnosing a medical device according to an embodiment of the present invention employs a USB interface, thereby providing a USB data transmission / reception line 450. Only need it, and no separate power line is needed.

In addition, Figure 5b is a low-power design of the imaging device for medical devices according to an embodiment of the present invention (CMOS is a low-power device, thus operating as a low-power device of less than 500mA.) Built-in battery pack, memory This figure shows a case in which an interface circuit is directly connected to a portable LCD, a notebook, or a PDA (console, 510).

That is, the CMOS basically consumes much less power than the CCD, and thus a separate battery pack and a memory interface may be installed inside the imaging apparatus, and thus may be designed to be more portable. Even in this case, a separate power supply line is unnecessary.

6 is an internal functional block diagram of an apparatus for diagnosing an image for a medical device according to an embodiment of the present invention.

First, the luminance adjusting unit (μ-com) 601 measures the illuminance of the external environment, calculates the illuminance for photographing the inspected object, and operates the high brightness LED 602. In this case, in some cases, a separate switch input may be provided to manually adjust the illuminance of the high brightness LED 602.

Subsequently, when the image of the inspected object is input through the lens 603, the image sensor 604 receives the input image of the inspected object, performs the digital conversion on the A / D converter 605, and converts the converted image. The digital data is input to the controller unit 606. The controller unit transfers the converted digital data to the PC 609 through the USB interface 608.

At this time, the program for adjusting the function of the controller unit is stored in a separate ROM (607), the memory 610 for temporary data read / write is installed separately.

While the invention has been described above based on the preferred embodiments thereof, these embodiments are intended to illustrate rather than limit the invention. It will be apparent to those skilled in the art that various changes, modifications, or adjustments to the above embodiments can be made without departing from the spirit of the invention. Therefore, the protection scope of the present invention will be limited by the appended claims, and should be construed as including all such changes, modifications or adjustments.

According to the present invention as described above, by employing a USB interface, there is an effect of providing a simple image diagnosis apparatus that does not require a separate power supply unit, and does not require an image processing board.

In addition, by providing a separate manual magnification adjustment wheel, the user can easily adjust the magnification when necessary, thereby making the image diagnosis more efficient.

In addition, by automatically changing the illuminance of the high-brightness light source LED according to the illuminance of the external environment, there is an effect that can perform the image diagnosis more efficiently without being affected by the environment used.

In addition, by designing the handle portion of the imaging device ergonomically, it has the effect of providing a streamlined shape to provide a user-centric interface.

In addition, by using a CMOS instead of a CCD as a camera element, and specifically providing a noise removing method that is a problem when using a CMOS, there is an effect of reducing the cost.

Claims (16)

In the imaging device for a medical device for dimming and photographing the test object in the front end, A light source having a plurality of light emitting diodes for dimming the inspected object; A light source irradiator for collecting light from the light source; A tip having a lens group configured to receive an image incident from an inspected object and enlarge or reduce the image at an appropriate magnification; A CMOS device which receives an image of the object from the tip and performs digital conversion; A USB connector for transmitting the digital data converted by the CMOS device to an external console; A controller unit which controls a illuminance of the light source and a CMOS device; A substrate on which the elements are mounted; A first outer cylinder surrounding the tip and the inner cylinder and serving as an outlet of light emitted from the light source; A rack connected to at least a portion of the lenses constituting the lens group of the tip to move at an upper side of the tip to adjust the magnification of the lens; A wheel having a pinion gear coupled to the rack so as to be rotatable and having an upper end exposed to the outside of the first outer cylinder; A second outer cylinder mechanically coupled to the first outer cylinder and serving as a support; And An anti-slip handle attached to the second outer cylinder and configured to prevent slipping when the second outer cylinder is held by hand; Including, The second outer cylinder is designed in a streamlined image diagnostic apparatus for a medical device having a manual scaling wheel. The method of claim 1, Manual magnification further comprising a total reflection mirror attached to the first outer cylinder to form a predetermined inclination to the portion facing the imaging device so as to be free to inspect the inspected object irrespective of the position and angle of the inspected object. Imaging device for medical devices with adjustable wheels. The method of claim 1, And the first outer cylinder is detachable from the second outer cylinder so that the first outer cylinder can be replaced according to a purpose. The method of claim 1, Passive magnification control, characterized in that the light emitted from the plurality of light emitting diodes are induced to be emitted to the outer cylinder end, and further comprises an optical fiber laid in the space between the inner cylinder and the first outer cylinder and the second outer cylinder. Imaging device for medical devices with wheels. The method of claim 1, The substrate, Use 4-LAYER PCB, distribute the ground pattern as much as possible, connect the pattern length between the pins to the minimum length, do not make the pattern angle, and the gap between parts should be at least 0.5mm Imaging device for a medical device with a manual scaling wheel, characterized in that it is designed so that it does not interfere when inserted. The method of claim 1, The tip and the lens are integrally formed, whereby the tip is detachable. The method of claim 1, And a plurality of lenses inside the tip are configured as a micro machine vision lens. The method of claim 1, And a plurality of lenses inside the tip using a 99% light transmittance mirror. The method of claim 1, And a plurality of lenses inside the tip to apply a cut-off filter. The method of claim 1, Imaging device for a medical device with a manual scaling wheel further comprises a separate battery pack for power supply function. The method of claim 1, And a memory interface configured to receive the digitized image and directly store it in a flash memory or a DRAM. The method of claim 1, If a still image is required while photographing the test object, the image diagnosis apparatus for a medical device having a manual scaling wheel, further comprising a capture button for storing the still image by a still image storing program installed separately. The method of claim 1, And an illumination control switch for manually adjusting the illumination of the light source. A method of controlling illuminance of a light source of an imaging apparatus for medical devices having a manual scaling wheel according to claim 1, The flashing cycle of the light emitting diode is divided according to the ambient illumination, and the whole stage is divided into n stages so as to repeat the blinking (on / off) operation of the light emitting diode at a predetermined frequency to determine the optimal illumination intensity. Illuminance control method. The method of claim 14, When the power is turned on, it is not performed sequentially from the step 1, but by installing a separate EEPROM, the user remembers the settings previously used and returns to the previous setting state immediately after turning on the power. Control method. The method of claim 14, Illumination control method characterized in that a separate switch unit to operate the lighting control manually.