KR101798141B1 - Video laryngoscope - Google Patents

Abstract

An embodiment of the present invention includes a grip housing having a battery; a curved blade detachably attached to the lower end of the grip housing; a camera installed on the blade to photograph the oral cavity image of a patient; a display panel installed at the upper end of the grip housing and displaying the oral image photographed by the camera; and a Wi-Fi communication module for wirelessly transmitting the oral image to an external terminal by Wi-Fi wireless communication. It is possible to increase the operational convenience of a display panel.

Description

Video laryngoscope

The present invention relates to a laryngoscope, which is inserted into the mouth of a patient whose airway obstruction is closed to perform airway maintenance.

In general, the laryngeal flap is a first aid for a patient who is unconscious due to an accident or other cause. When it is necessary to use an artificial respiration device to ventilate, the patient's airway is secured and the intubation tube Is used as an ancillary device for inserting a distal end portion of a tubular member such as a needle into a target site such as an organ of a patient. Thus, in general, the laryngeal is a first-aid instrument used to hold the airway by inserting it into the mouth of a non-breathing patient or a patient with a closed airway.

Such a laryngoscope is divided into a general Macintyre type laryngeal and a laryngeal blade 300 in which a camera 400 is mounted to provide an improved visual field.

A typical Macintosh laryngoscope consists of a long member with a curved tip, which is inserted through the mouth of a patient who has lost consciousness and the appropriate portion of the tip of the tip touches the root of the tongue and lifts it to secure the patient's airway Allows insertion of an intubation tube. However, since the Macintosh type laryngoscope relies on the operator's eye to identify the airway structure, there may be limitations in the visual field, and sometimes an important anatomic indicator is not identified, which may delay or fail the intubation.

The video laryngoscope includes an imaging section having a charge-coupled device (CCD) provided at the tip of the blade for securing airway and a lens, and a display section for displaying an image photographed by the imaging section. The video laryngoscope allows an operator to more easily observe the patient's pharynx or larynx, thus facilitating the procedure in which the operator secures the patient's airway and inserts the intubation tube. Therefore, in recent years, the use of video laryngoscopes is increasing.

However, in the case of the conventional video laryngoscope, the following problems arise.

First, in the past, only the practitioner can observe the patient's pharynx or larynx through the display panel provided on the video larynx, and there is inconvenience that other persons in the vicinity can not observe the patient's pharynx or larynx. Therefore, besides the practitioner, the surrounding medical staff can not give advice on the condition of the patient's pharynx or larynx. Furthermore, the number of trainees who can view the display panel was limited when the educational procedure was performed.

Second, in the case of the video laryngoscope using the conventional reusable blades, the camera and the blade were detached and removed, and it was troublesome to detach and attach them when washing and disinfection.

Third, the blade of the existing product was coated with anti-fog coating in front of the lens to prevent fogging. However, there was a problem that when the use time was prolonged, the coating of the fogging coating was lost and a clear monitor image quality could not be seen.

Fourth, since there is a restriction on the rotation of the display panel provided in the video laryngeal, there is a problem that the practitioner is limited in space during the procedure.

Fifth, in the case of the conventional video laryngoscope, the user operation interface is simple and has many problems in terms of operation convenience.

Korean Patent Publication No. 10-1995-0700025

The technical object of the present invention is to provide a means for observers other than the practitioner to observe a surgical procedure at the time of examination through the video laryngoscope. The present invention also provides a waterproof means for a camera provided in a video laryngeal. It is another object of the present invention to provide a means for preventing fogging of a camera provided on a video laryngeal. It is another object of the present invention to provide a means for rotating the display panel of the video laryngeal. Another object of the present invention is to provide a means for increasing the operability of the display panel.

BRIEF SUMMARY OF THE INVENTION An embodiment of the present invention relates to a grip housing having a built-in battery; A curved blade detachably attached to a lower end of the grip housing; A camera installed on the blade for photographing a patient's oral cavity image; A display panel installed at an upper end of the grip housing to display a patient oral image photographed by the camera; And a Wi-Fi communication module for wirelessly transmitting the patient's oral image to an external terminal through an external terminal.

Wherein the blade includes: a connector module detachable from a lower end of the grip housing; A curved main body blade having an opened bottom and an end face formed with a through hole and having the camera fixed therein so as to be photographed through a through hole; A tip blade extending in a curved shape at an end of the main body blade; And a cover body covering the open bottom of the main body blade.

And the blade is waterproofed to the inside of the main body blade by epoxy bonding of the gap between the blade housing and the cover surface.

The main blade and the tip blade are made of stainless steel of SUS 316 series, and are subjected to an epoxy treatment between the blade housing and the cover surface, and then are welded to stainless steel of SUS 316 series.

Wherein the video laryngoscope comprises: a PCB substrate provided inside the body blade; A temperature sensor mounted on the PCB substrate for measuring a temperature; And a heating element mounted on the PCB substrate and heating the inside of the main body blade so that the internal temperature of the main body blade is equal to the temperature of the human body, thereby preventing fogging of the lens of the camera.

The outer surface of the substrate, which is the outer surface of the main body blade, corresponding to the inner surface of the main body blade, on which the PCB substrate is mounted, is a thermally conductive film having higher thermal conductivity than the SUS 316 series stainless steel material And the temperature sensor and the thermally conductive film are connected to each other by a via hole filled with a thermally conductive material so that the temperature sensor can measure the temperature of the human body transmitted through the thermally conductive film.

The display panel may be vertically rotatable and horizontally rotatable at an upper end of the grip housing.

Wherein the display panel operates in a standby mode when there is no user operation until a predetermined waiting time elapses from the user, and the standby mode is a mode in which the display panel is turned off when the standby time elapses, The standby notification lamp can be turned on.

The display panel may be a touch screen panel, and a language selection interface screen for selecting a language to be used may be displayed on the touch screen panel so that a user can select a language to be used by the user.

According to the embodiment of the present invention, the convenience of the video laryngeal can be further upgraded by observing procedures other than the practitioner, waterproofing the camera, preventing fogging of the camera, rotating the display panel vertically and horizontally, and manipulating the display panel.

1 is a perspective view of a video laryngeal according to an embodiment of the present invention;
FIG. 2 and FIG. 3 are views showing a state in which the camera is rotated up and down and left and right in the grip housing according to the embodiment of the present invention. FIG.
FIG. 4 is a view illustrating a patient mouth image taken at a video laryngeal image by a Wi-Fi wireless transmission to an external terminal according to an embodiment of the present invention; FIG.
5 is a perspective view of a blade in accordance with an embodiment of the present invention.
FIG. 6 is a view showing a state in which a cover of a bottom of a blade is epoxy-processed according to an embodiment of the present invention. FIG.
FIG. 7 is a view showing a PCB and a camera provided inside a blade according to an embodiment of the present invention; FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to achieve them, will be apparent from the following detailed description of embodiments thereof taken in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the exemplary embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of the invention to those skilled in the art. And the present invention is only defined by the scope of the claims. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

FIG. 1 is a perspective view of a video laryngeal according to an embodiment of the present invention. FIG. 2 and FIG. 3 are views showing a camera rotating up and down and left and right in a grip housing according to an embodiment of the present invention, FIG. 5 is a perspective view of a blade according to an embodiment of the present invention, and FIG. 6 is a perspective view of a patient's oral image taken by a video laryngeal according to an embodiment of the present invention. FIG. 6 is a view showing a state in which a cover body of a bottom of a blade according to an embodiment of the present invention is subjected to an epoxy treatment. FIG.

The video laryngoscope 10 of the present invention includes a grip housing 200, a blade 300, a camera 400, a display panel 100, and a Wi-Fi communication module (not shown).

The grip housing 200 is a housing with a built-in battery, and is a body housing held by a practitioner. The cross-section of the grip housing 200 may be formed in a circular, hemispherical, or polygonal shape, and is preferably cylindrical in shape that the practitioner can easily grasp. The grip housing 200 can be separated from the blade 300 and stored. The battery provides driving power to the camera 400, the display panel 100, the Wi-Fi communication module (not shown), the temperature sensor 520, and the heating element 510.

The blade 300 is a curved frame that can be detachably attached to the lower end of the grip housing 200. The blade 300 is inserted into the pharynx or larynx through the oral cavity of the patient to secure the airway of the patient and has a structure to be fitted in a detachable groove (not shown) of the grip housing 200. The blade 300 is combined with the grip housing 200 to serve as a tracheal intubator so that the video laryngeal 10 having the grip housing 200 and the blade 300 fastened to each other has an L- . That is, the grip housing 200 forms a stroke in the vertical direction among the "L" characters, and the blade 300 forms a stroke in the horizontal direction among the "L" characters.

The camera 400 is embedded in the outer surface of the blade 300 to photograph a patient's oral cavity image. And is installed in the outer surface of the blade 300 so as to have a waterproof function to prevent penetration of the saliva in the oral cavity or penetration of the liquid material. The camera 400 photographs the oral cavity of the patient's larynx, pharynx, organs, and transmits a corresponding image signal to an image processing unit (not shown) provided in the grip housing 200. Accordingly, the camera 400 is electrically connected to an image processing unit (not shown), and the camera 400 may include an image pickup device (e.g., a CCD), a light source, and a lens.

The display panel 100 is installed at the upper end of the grip housing 200 and displays a patient oral cavity image captured by the camera 400. [ The display panel 100 may have a video recording function, an image capturing function, and a screen brightness adjusting function according to the choice of a practitioner. As shown in FIG. 2, the upper part of the grip housing 200 can be rotated up and down, and the upper part of the grip housing 200 can be rotated left and right as shown in FIG. This is to allow the practitioner to conveniently observe the insertion path of the tube when using the laryngeal tube to intubate the patient's airway. The display panel 100 is rotatable up and down by 210 ° and left and right by 270 ° and the display panel 100 is also rotated 180 ° so that the practitioner can perform the operation without being restricted by the space. In addition, since the screen within the display panel 100 can be rotated by 180 degrees, it is possible for a practitioner to overcome the restriction of space and the inconvenience of posture during the operation.

The Wi-Fi communication module (not shown) wirelessly transmits the patient's mouth image to an external terminal via an external terminal as shown in FIG. Therefore, it is possible to connect the peripheral devices to the wireless internet network and to view and record the operation scene in real time, so that it can be left as education and verification data. Especially when it is used for educational purposes, it is possible to display accurate and clear images to students by using each student's terminal.

And transmits the image photographed by the camera 400 through the WiFi communication module (not shown) to the surrounding terminals in real time. The surrounding terminals can receive the transmitted video data when the pre-distributed mobile app is down-connected. For example, if a program is configured to automatically configure a wireless Internet network after a few seconds after the operation of the video laryngoscope 10, the user can access the wireless Internet network by using a mobile device and a large screen in the vicinity of the medical device, You can see the procedure. Furthermore, it can be implemented so that it can be accessed only by the application distributed by the manufacturer of the video laryngeal.

On the other hand, the reuse blade 300 of the existing product takes a form in which the camera 400 and the blade 300 are detachably attached, and is troublesome to detach and attach when the cleaning and disinfection are performed. Accordingly, the camera 400 is completely embedded in the blade 300 to provide a waterproof and dustproof effect, and the cleaning and sterilization are facilitated. This will be described later in conjunction with FIG. 5 and FIG.

The blade 300 has a connector module 330 which can be detachably attached to the lower end of the grip housing 200 and a camera 400 having an open end and an end face through which the through hole is formed, A tip blade 320 extending in a curved shape at an end of the main body blade 310 and a cover body 340 covering the open bottom of the main body blade 310 Respectively. Here, the material of the main blade 310 and the tip blade 320 is made of stainless steel of SUS 316 series.

Stainless steel of the SUS 316 series has a chemical composition of 18Cr-12Ni-2Mo as a metal belonging to the austenitic system as described in [Table 1] to [Table 3] below. Stainless steel of SUS 316 series is added with Mo and is excellent in corrosion resistance, pitting corrosion resistance and high temperature strength and excellent in work hardening.

Chemical composition (%)
C

Cr
Ni
Mo
≤0.08

16.0 to 18.0
10.0 to 14.0
2.0 to 3.0

Mechanical property
Strength (N / mm ² )

Elongation (N / mm ² )
Elongation (%)
Strength (Hv)
≥205

≥520
≥40
≤200

Physical properties
Specific heat (J / g ℃)

Specific Gravity (kg / mm ² )
Coefficient of thermal expansion
Thermal conductivity
0.50

7.98
15.9
16.3

Particularly, according to the present invention, after the camera 400 is mounted in the blade 300 in accordance with the position of the camera 400, the camera 400 is fully fixed by performing an epoxy operation with dehumidification and insulation so as to have a dust- do. For this purpose, the gap between the housing of the blade 300 and the lid surface is subjected to an epoxy treatment so that the inside of the main blade 310 is waterproofed.

Further, in order to enhance the performance of the waterproofing treatment, the blade 300 is epoxy-treated between the housing and the cover surface, and is then welded with stainless steel of SUS 316 series. Therefore, the high performance camera 400 is designed to fit the human body with a material of 316 which is inserted into the inside of the human body, so that the high performance camera 400 is completely disconnected from the outside and has a strong resistance to waterproof and dustproof.

On the other hand, the blade 300 prevents fogging by applying anti-fog coating to the lens. However, when the usage time became longer, the coating of the fogging coating was lost and the monitor quality could not be seen clearly. Accordingly, in the present invention, the lens temperature of the camera 400 is heated to within the human body temperature within 30 seconds within the blade 300, and the temperature is maintained to remove the fogging phenomenon. This will be described in detail with reference to FIG.

7 is a view showing a PCB substrate and a camera provided inside a blade according to an embodiment of the present invention.

The video laryngeal 10 of the present invention includes a PCB substrate 500 provided inside the main body blade 310 and a PCB substrate 500 provided inside the main body blade 310 to prevent fogging on the lens of the camera 400 at the time of oral examination on the patient. A temperature sensor 520 mounted on the PCB 500 for heating the inside of the main body blade 310 so that the internal temperature of the main body blade 310 is equal to the temperature of the human body And a heating element 510 for preventing fogging of the camera 400.

The inside of the main body blade 310 is heated to a human body temperature (for example, 36.5 DEG C) so that there is no temperature difference between the camera 400 and the human body when the patient's oral cavity is inspected using the video laryngoscope 10, 400 is prevented from occurring.

In this case, the human body temperature is preset to a preset temperature, for example, human body temperature of 36.5 DEG C, so that the inside of the main body blade 310 can be heated to 36.5 DEG C during operation of the video laryngoscope 10.

However, since the body temperature is different for each person, holding the inside of the main body blade 310 with the body temperature fixed at 36.5 DEG C can not completely prevent the camera 400 from being fogged.

The temperature of the patient is measured by the temperature sensor 520 at that time. The outer surface of the main body blade 310 corresponding to the inner surface area of the main body blade 310 on which the PCB 500 is seated (hereinafter referred to as the 'substrate seating inner surface' ) Is coated with a thermally conductive film having higher thermal conductivity than the stainless steel material of the SUS 316 series. The temperature sensor 520 and the thermally conductive film allow heat to be transferred through the via hole filled with the thermally conductive material. Accordingly, the temperature sensor 520 can measure the temperature of the human body transmitted through the thermally conductive film.

For example, when the oral cavity is photographed while pushing the blade 300 of the video laryngeal pedicle 10 against the patient's tongue, the tongue of the patient is brought into contact with the surface of the blade 300, The body temperature of the tongue is transmitted to the temperature sensor 520 through the thermally conductive film, the via hole, and the inner surface of the substrate in order.

On the other hand, existing video laryngoscopes are only implementing images on the monitor screen, and existing products are falling far in line with the changing needs of modern medical professionals.

Accordingly, the present invention is equipped with a touch screen monitor by putting functions such as selectable screen auto-off, wait time selection, language selection in various countries, and the like for convenience of the operator. This will be described in detail below.

The display panel 100 of the present invention operates in a standby mode when there is no user operation until a predetermined waiting time elapses from the user. Such a standby mode may be an operation of turning off the screen of the display panel 100 when the standby time has elapsed, and then lighting the standby notification lamp provided on the display panel 100. [

In addition, the display panel 100 may be a touch screen panel, and a language selection interface screen for selecting a language to be used may be displayed on the touch screen panel so that the user can select a language to be used by the user. Therefore, the user can easily select a language suitable for the user through the touch.

The embodiments of the present invention described above are selected and presented in order to facilitate the understanding of those skilled in the art from a variety of possible examples. The technical idea of the present invention is not necessarily limited to or limited to these embodiments Various changes, modifications, and other equivalent embodiments are possible without departing from the spirit of the present invention.

100: Display panel
200: Grip housing
300: blade
400: camera
500: PCB substrate

Claims (6)

A grip housing with a built-in battery;
A curved blade detachably attached to a lower end of the grip housing;
A camera installed on the blade for photographing a patient's oral cavity image;
A display panel installed at an upper end of the grip housing to display a patient oral image photographed by the camera; And
And a Wi-Fi communication module for wirelessly transmitting the patient oral cavity image to an external terminal through an external terminal,
The blade
A connector module detachable from the lower end of the grip housing; A curved main body blade having an opened bottom and an end face formed with a through hole and having the camera fixed therein so as to be photographed through a through hole; A tip blade extending in a curved shape at an end of the main body blade; And a cover body covering the open bottom of the main body blade,
A PCB substrate provided inside the main body blade;
A temperature sensor mounted on the PCB substrate for measuring a temperature; And
And a heating element mounted on the PCB substrate and heating the inside of the main body blade so that the internal temperature of the main body blade is equal to the temperature of the human body to prevent fogging of the lens of the camera.
delete The method according to claim 1,
Wherein the blades are waterproofed to the inside of the main body blade by epoxy-bonding the gap between the blade housing and the cover surface.
The method of claim 3,
Wherein the material of the main blade and the tip blade is made of stainless steel and the blade is subjected to an epoxy treatment between the blade housing and the cover surface and then welded to a stainless steel material.
The display device according to claim 1,
Wherein the grip is provided so as to be vertically rotatable and horizontally rotatable at an upper end of the grip housing.
The display device according to claim 1,
Wherein the standby mode operates in a standby mode when there is no user operation until a predetermined waiting time elapses from the user, and the standby mode turns off a screen of the display panel when the standby time elapses, Video laryngoscope to let.

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