JP2006326111A - Laryngoscope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a laryngoscope which can more efficiently perform the checking work of the glottis or the like under every condition. <P>SOLUTION: This laryngoscope 1 has a handle 2, and a blade 3 which is supported by one end section of the handle 2 under a cantilever shape. The laryngoscope 1 is equipped with a CCD camera for which the region of the tip of the blade 3 is set as the imaging region E1, an LED which irradiates the imaging region E1, and a monitor 4 which is provided on the other end section of the handle 2, and projects the state of the tip of the blade 3 photographed by the CCD camera. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a laryngoscope used when checking a glottis of a patient or the vicinity thereof.

  Generally, the laryngoscope is formed in a crane shape having a handle and a blade provided at the tip of the handle, and is used when the glottis or its vicinity (hereinafter referred to as glottis or the like) is visually recognized from the outside. That is, the user inserts the distal end of the blade into the patient's oral cavity and operates the handle to the front side of the patient in this state (hereinafter referred to as a lifting operation), thereby removing the epiglottis of the patient. Pull up (laryngeal deployment) and check glottis etc. from outside.

  However, in the above laryngoscope, the glottis etc. are visually recognized after raising the epiglottis, so it is difficult to maintain a good view of the tip of the blade when there is something that obstructs the line of sight to the glottis etc. It was.

Therefore, a laryngoscope is also known in which an imaging camera that captures the situation (such as the glottis of a patient) of the blade is built in the blade (for example, Patent Document 1). In this laryngoscope, it is possible to project an image from the imaging camera on a separately prepared display.
JP 2000-175867 A

  However, in the laryngoscope of Patent Document 1, since the image by the imaging camera in the blade is displayed on a display provided separately from the laryngoscope, the user has his own hand to raise the patient's epiglottis, It was necessary to shift the point of view between the glottal display and other displays and the workability was poor.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a laryngoscope capable of performing a glottal check operation more efficiently under all conditions.

  In order to solve the above-described problems, the present invention provides a laryngoscope having a handle and a blade supported in a cantilevered manner at one end of the handle, wherein the area at the tip of the blade is set as an imaging area. An imaging unit, an illumination unit that illuminates the imaging region, and a display unit that is provided at the other end of the handle and displays the state of the blade imaged by the imaging unit. A laryngoscope is provided.

  According to the present invention, since the display unit is disposed at the end of the handle opposite to the blade, that is, at a position that is close to the user, the user can perform the operation of lifting the patient's epiglottis. Can work while looking at the blade, but when checking the state of the patient's glottis etc. between the work, move the viewpoint to the hand and check the image displayed on the display unit can do.

  Therefore, according to the present invention, it is possible to achieve both the operation of pulling up the patient's epiglottis and the operation of confirming the patient's glottis and the like without changing the viewpoint of the user.

  In addition, the laryngoscope according to the present invention has the following advantages as compared with a conventional laryngoscope (Japanese Patent Laid-Open No. 2000-175867).

  That is, when the laryngoscope and the display are formed separately as in the prior art, the glottis or the like cannot be confirmed unless the patient is transferred to the place where the display is disposed. According to the configuration in which the display unit is integrated as described above, the glottis and the like can be confirmed simply by transporting the laryngoscope to the place where the patient is. This is extremely useful when it is desired to immediately confirm the glottis of the patient at an emergency site.

  The laryngoscope may be driven by an external power source, but the handle is preferably provided with a battery that supplies power to the imaging unit, the illumination unit, and the display unit.

  According to this configuration, unlike the case where power is supplied from an external power source, a cable or the like extending from the laryngoscope can be omitted, so that the portability of the laryngoscope can be further improved.

  The display unit may be fixed to the handle, but is preferably connected to the handle so as to be tiltable.

  According to this configuration, even if the positional relationship between the laryngoscope and the user changes due to the posture of the patient or the like, the display unit can be tilted in a direction that is easy for the user to see.

  Although not intended to exclude the formation of the blade and the handle integrally, it is preferable that the blade is detachably connected to the handle.

  According to this configuration, it is possible to use the blades having different sizes according to the patient's physique and the like while using the common handle and display unit. Further, since only the removed blade can be sterilized, the infection prevention measures can be taken relatively easily as compared with the case where the entire laryngoscope is sterilized.

  As described above, when the blade and the handle are attached and detached, the imaging unit and the illumination unit are accommodated in a common accommodating part, and the accommodating part is detachable from the blade. preferable.

  According to this configuration, the imaging unit and the illuminating unit can be removed from the blade in a lump by removing the housing unit from the blade, so that it is possible to reduce the trouble of removing the blade from the handle and mounting other blades. Can do.

  In the laryngoscope, the illumination unit is provided on the handle, and at least a part of a light guide unit that guides illumination light of the illumination unit to an imaging region of the imaging unit is formed on the blade. It is preferable.

  According to this configuration, since the blade itself can be used as a light guide, the size of the blade can be reduced by an amount corresponding to the optical fiber as compared with a case where an optical fiber or the like is provided to guide light. This can improve the portability of the laryngoscope.

  It is preferable that the laryngoscope further includes an interface that outputs imaging data obtained by the imaging unit.

  According to this configuration, the state of the tip of the blade imaged by the imaging unit can be displayed on another display device (display, etc.), so that a person other than the user can check the situation of the glottis and the like. Can do. Therefore, the laryngoscope according to this configuration can be effectively used not only in an emergency site but also in a medical facility.

  The interface may be configured to be wired to another display device, but is preferably configured to wirelessly output imaging data from the imaging unit.

  According to this configuration, the portability of the laryngoscope can be improved compared to the case where a cable or the like is connected between the interface and another display device.

  Furthermore, in this configuration, since it is possible to obtain the determination based on the imaging data by transmitting the imaging data from the imaging unit to a doctor or the like located away from the patient, it is difficult for the user of the laryngoscope to determine Even so, appropriate measures can be taken.

  Note that “output wirelessly” is not limited to direct communication with another display device, but an existing communication network (such as the Internet) using a specific base station (including an access point). And communicating with the display device via.

  The laryngoscope further includes a control unit that adjusts the amount of power supplied to the imaging unit, the illumination unit, or the display unit in accordance with the remaining amount of the battery. When it is less than the amount, it is particularly preferable to supply power preferentially to the illumination unit.

  According to this configuration, even when the remaining amount of the battery is low, the minimum function of the laryngoscope such as visually confirming the glottis etc. is maintained by illuminating the glottis of the patient with the illumination unit. Can do.

  According to the laryngoscope of the present invention, it is possible to more efficiently check glottis and the like under all conditions.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a side view showing a laryngoscope according to an embodiment of the present invention. FIG. 2 is a rear view of the laryngoscope of FIG. 3 is a cross-sectional view taken along line III-III in FIG. 4 is a cross-sectional view of the handle shown in FIG. 1 taken along line IV-IV.

  Referring to each figure, a laryngoscope 1 is attached to a handle 2 for gripping, a blade 3 supported in a cantilever manner at one end of the handle 2, and the other end of the handle 2. And a monitor (display unit) 4. In the following description, the side on which the blade 3 is formed with respect to the handle 2 is assumed to be the lower side, and the side on which the blade 3 in the use posture (posture in FIG. 1) to be described later extends is assumed to be the rear. The direction orthogonal to the direction will be described as the left-right direction.

  The handle 2 has a container-like basic configuration in which the upper and lower openings of the cylindrical case 5 are closed by the upper mounting portion 6 and the lower mounting portion 7, respectively.

  The upper mounting portion 6 is formed with an arm 6a extending forward, and a front end portion of the arm 6a is provided with an axis J1 (see FIG. 3) extending in the left-right direction. It tilts with respect to the handle 2 around J1. In this embodiment, the monitor 4 tilts upward by an angle θ1 (approximately 60 °) and tilts downward by an angle θ2 (approximately 30 °) from a posture in which the liquid crystal display 26 faces forward. It has become.

  The lower mounting portion 7 is formed with a pair of left and right support legs 7a extending downward, and a shaft J2 (see FIG. 2) extending in the left-right direction is spanned between the support legs 7a. Is tilted with respect to the handle 2 around the axis J2.

  The handle 4 is electrically connected to the control unit 8 (see FIG. 8), the battery 9 and the power switch 10 incorporated in the case 5, respectively, and the control unit 8 via the cable 11. The imaging unit 12 is provided.

  As will be described in detail later, the control unit 8 supplies the power of the battery 9 to the monitor 4 and the imaging unit 12, and displays the imaging data of the imaging unit 12 on the monitor 4.

  The battery 9 is composed of a lithium ion battery.

  The power switch 10 is a well-known contact switch, and is arranged in a state in which the pressing element 10a protrudes downward with respect to the bottom surface 7b between the support legs 7a.

  The cable 11 is led out through the lower mounting portion 7.

  As shown in FIGS. 5 and 6, the imaging unit 12 includes an accommodation box (accommodating portion) 14 fixed to the distal end portion of the cable 11, and the accommodation box 14 is disposed in a storage hole 25 of the blade 3 to be described later. Stored in

  The storage box 14 is formed in a substantially rectangular parallelepiped cylindrical shape, and a front end opening thereof is closed by a glass lens 15. In the housing box 14, relay boards 16 and 17 electrically connected to the cable 11, CCD cameras (imaging units) 18 and LEDs (illumination units) mounted on the relay boards 16 and 17, respectively. ) 19 is incorporated.

  The CCD camera 18 can take an image of the imaging area E1 through the glass lens 15.

  The LED 19 is provided between the CCD camera 18 and the glass lens 15 and illuminates the imaging area E1.

  FIG. 6 is an enlarged view of the blade 3 in the use posture of the laryngoscope 1 of FIG. 1, (a) is a rear view, and (b) is a side view. FIG. 7 is an enlarged side view showing the blade 3 of the laryngoscope 1 of FIG. 1, where (a) shows a state where it is in an attaching / detaching position, and (b) shows a state where it is removed from the handle 2. .

  With reference to the drawings, the blade 3 is a substantially L-shaped member formed of synthetic resin or metal. Specifically, the blade 3 integrally includes a mounting piece 20 disposed between the support legs 7a and a pressing piece 21 extending from the mounting piece 20 at a substantially right angle.

  The mounting piece 20 is formed with a bearing groove 20a that opens forward and extends in the left-right direction. The mounting piece 20 receives the shaft J2 in the bearing groove 20a so that the blade 3 can swing between the use posture shown in FIG. 6 and the attachment / detachment posture shown in FIG. 7A. Further, the handle 2 is supported.

  The mounting piece 20 also has a function of turning the power switch 10 on or off. That is, as shown in FIG. 6B, the power switch 10 is pressed by the upper surface 20a of the mounting piece 20 close to the bottom portion 7b of the lower support portion 7 when the blade 3 is swung to the use posture. While the child 10a is pushed in, as shown in FIG. 7 (a), the upper surface 20a is separated from the presser 10a in accordance with the swinging operation of the blade 3 to the attach / detach posture, and the presser 10a is turned off. Return to the state.

  In addition, the connection structure of the said blade 3 (attachment piece 20) and the handle | steering-wheel 2 (lower support part 7) is prescribed | regulated in JIST7231-1. Although detailed description is omitted, the axis J2 is disposed behind the lower support portion 7, and the length dimension D1 of each support leg 7a and the height dimension D2 of the mounting piece 20 are mutually defined. In the blade 3 in the use posture, the shaft J2 is extracted from the bearing groove 20a of the mounting piece 20 because the bearing groove 20a is inclined at a predetermined angle toward the pressing piece 21 and the like. In the blade 3 in the attach / detach posture, the shaft J2 can be extracted from the bearing groove 20a.

  That is, as shown in FIG. 7, the blade 3 can be detached from the handle 2 by pulling in the direction of the arrow Y2 after being in the above-mentioned attachment / detachment posture, and attached to the handle 2 by performing the opposite operation. be able to.

  With reference to FIGS. 1, 6 and 7, the pressing piece 21 is a plate-like member curved upward. A partition plate 22 is suspended from the lower surface of the pressing piece 21 from a substantially central position on the left and right. The partition plate 22 is formed in a region from a position before the distal end portion of the pressing piece 21 to a proximal end portion.

  Further, the pressing piece 21 is formed with a side plate 23 suspended from the right end portion thereof, and a bottom plate 24 for connecting the side plate 23 and the partition plate 22, and by the partition plate 22, the side plate 23 and the bottom plate 24, A storage hole 25 penetrating in the front-rear direction is formed at the tip of the partition plate 22.

  The storage hole 25 is shaped so that the imaging unit 12 can be inserted from the front along the curved shape of the pressing piece 21 so that the imaging area E1 of the CCD camera 18 faces the tip of the blade 3. ing.

  Therefore, as shown by an arrow Y1 in FIG. 6, the imaging unit 12 is pulled out from the storage hole 25 to the front and lower, and the blade 3 is tilted to the attachment / detachment position as shown in FIG. The blade 3 and the handle 2 can be removed by sliding the blade 3 forward and downward and pulling out the shaft J2 from the bearing groove 20a.

  2 and 3, the monitor 4 includes a liquid crystal display (hereinafter referred to as LCD) 26 that displays an image picked up by the CCD camera 18, and an external output disposed on the back side of the LCD 26. An interface 27, a power interface 28, and an indicator 29 (see FIG. 8) for displaying the remaining amount of the battery 9 are provided.

  The external output interface 27 is connected to a well-known video output terminal such as an S terminal or a composite, so that an image captured by the CCD camera can be output to an external display device (not shown).

  The power interface 28 can input external power by connecting an AC adapter.

  FIG. 8 is a block diagram showing an electrical configuration of the control unit 8 built in the laryngoscope of FIG.

  Referring to FIG. 8, control unit 8 is formed by a well-known CPU, RAM, ROM, and the like, and mainly functions as CCD control unit 30, LCD control unit 31, power control unit 32, and power determination unit 33. It has become.

  The CCD control unit 30 receives image data captured by the CCD camera 18 and outputs the data to the external output interface 27 or the LCD control unit 31.

  The LCD control unit 31 performs predetermined image processing on the imaging data input from the CCD control unit 30 and then displays an image based on the imaging data on the LCD 26.

  The power control unit 32 executes the following processing when the power switch 10 is turned on.

  That is, the power control unit 32 supplies the power of the external power source connected to the battery 9 or the power interface 28 to the CCD camera 18, LED 19, LCD 26, or indicator 29. At this time, if there is input power from the power supply interface 28 (that is, an external power supply), this power is preferentially used for the CCD camera 18, LED 19, LCD 26 or indicator 29, and this power is used for the battery 9. And the battery 9 is also charged.

  When the power switch 10 is turned on, the power determination unit 33 determines whether or not the voltage of the battery 9 is less than a preset threshold value, and is determined to be greater than or equal to the threshold value. In this case, an instruction to execute power supply is output to the power control unit 32, and when it is determined that the power control unit 32 is less than the threshold value, the power of the CCD camera 18 and the LCD 26 to the power control unit 32 is determined. An instruction to stop the supply is output.

  Hereinafter, the process of the control unit 8 will be described with reference to FIG.

  FIG. 9 is a flowchart showing processing executed by the control unit 8 of FIG.

  When the blade 3 is tilted to the use posture and the power switch 10 is turned on, execution of the process of the control unit 8 is started. When the process starts, power is supplied to the CCD camera 18, LED 19, LCD 26, and indicator 29 (step S1).

  Next, it is determined whether or not the input voltage is less than the threshold value (step S2). If it is determined that the input voltage is equal to or higher than the threshold value (NO in step S2), the blade 3 is It is determined whether or not the tilting operation is performed in the attach / detach posture, that is, whether or not the power switch 10 is turned off (step S5).

  If it is determined that the power switch 10 is still ON (NO in step S5), step S2 is repeatedly executed. On the other hand, if it is determined that the power switch 10 is OFF (YES in step S5). Then, the process ends.

  On the other hand, if it is determined that the input voltage is less than the threshold value (YES in step S2), the power supply to the LCD 26 and the CCD camera 18 is stopped (step S3), and the power of the battery 9 (remaining power) is displayed on the indicator 29. The fact that the amount is insufficient is displayed (step S4).

  Next, it is determined whether or not the power switch 10 is turned off (step S5). If it is determined that the power switch 10 is still on (NO in step S5), the step S2 is repeatedly executed. To do.

  On the other hand, if it is determined that the power switch 10 is turned off (YES in step S5), the process is terminated.

  Hereinafter, a method of using the laryngoscope 1 will be described with reference to FIGS. 10 and 11.

  First, the patient is placed in the supine position, the handle 2 is grasped, and the blade 3 is tilted to the use posture. Next, while holding the handle 2, the blade 3 is inserted into the patient's oral cavity from the tip thereof, and the tip of the blade 3 is disposed at a position near the epiglottis H1 of the patient as shown in FIG. .

  Next, as shown in FIG. 10 (b), the handle 2 is pulled down (on the front side of the patient) to raise the patient's epiglottis H1. As a result, the patient's glottis H2 can be captured in the imaging area E1 of the CCD camera 18, and the image from the CCD camera 18 is displayed on the LCD 26. The user can confirm the state of the glottis H2 by confirming the image displayed on the LCD 26.

  Thus, since the state of the patient's glottis H2 can be confirmed, as shown in FIG. 11, the laryngoscope 1 serves as a guide when inserting the endotracheal tube 34 for artificial respiration into the patient's trachea H3. It can also be used.

  In other words, by using the laryngoscope 1, it is possible to confirm the mode of branching between the trachea H3 and the esophagus H4 on the basis of the video around the glottis H2 displayed on the LCD 26. Accordingly, by confirming the image on the LCD 26 while inserting the endotracheal tube 34 into the oral cavity of the patient, it is possible to prevent the distal end portion of the endotracheal tube 34 from being erroneously inserted into the esophagus H4 and to reliably enter the trachea H3. Can be inserted into.

  In particular, in recent years, there is a scene where an emergency medical technician performs intubation of the endotracheal tube 34 at an emergency site. In such a site, unlike a treatment in a medical facility, an ideal environment such as a patient's posture is provided. In the laryngoscope 1, the endotracheal tube 34 can be intubated into the patient while looking at the monitor 4. Therefore, the endotracheal tube can be accurately obtained even in a relatively unfavorable environment. 34 can be intubated.

  When inserting the endotracheal tube 34, the endotracheal tube 34 is passed through the space between the pressing piece 21 and the partition plate 22 (the space on the left side of the partition plate 22 in FIG. 2) while passing through the press piece 21. Along the endotracheal tube 34 to the patient's oral cavity as well as the trachea H3.

  As described above, according to the laryngoscope 1, the monitor 4 is disposed at the end of the handle 2 on the side opposite to the blade 3, that is, at a position close to the user. When performing the operation of pulling up the patient's epiglottis H1, it is possible to perform the operation by looking at the blade 3, while when checking the state of the patient's glottis H2 between these operations, the viewpoint is at hand. The image projected on the monitor 4 can be confirmed.

  Therefore, according to the laryngoscope 1, it is possible to achieve both the operation of pulling up the patient's epiglottis H1 and the operation of confirming the patient's glottis H2 without shifting the viewpoint of the user.

  When the laryngoscope and the display are formed separately as in the prior art, the glottis H2 cannot be confirmed without transferring the patient to the place where the display is installed, whereas the laryngoscope 1 As described above, according to the configuration in which the monitor 4 is integrated, the glottis H2 can be confirmed only by transporting the laryngoscope 1 to the place where the patient is present. This is very useful when it is desired to immediately confirm the glottal H2 of the patient at an emergency site.

  According to the laryngoscope 1 of the above-described embodiment in which the battery 9 is built, unlike the case where power is supplied from an external power source, a cable or the like extending from the laryngoscope 1 can be omitted. Can be further improved.

  According to the laryngoscope 1 of the embodiment in which the monitor 4 is tiltably connected to the handle 2, even if the positional relationship between the laryngoscope 1 and its user changes due to the posture of the patient or the like. The monitor 4 can be tilted in a direction that is easy for the user to see.

  According to the laryngoscope 1 of the embodiment in which the handle 2 and the blade 3 are detachably connected, the blades 3 of different sizes are properly used according to the patient's physique and the like while using the common handle 2 and the monitor 4. Can be used. Further, since only the removed blade 3 can be sterilized, the infection prevention measures can be taken relatively easily as compared with the case where the entire laryngoscope 1 is sterilized.

  According to the laryngoscope 1 of the embodiment in which the CCD camera 18 and the LED 19 are accommodated in the accommodation box 14, the CCD camera 18 and the LED 19 can be removed from the blade 3 at once by removing the accommodation box 14 from the blade 3. Therefore, it is possible to reduce time and labor when the blade 3 is detached from the handle 2 and another blade 3 is mounted.

  In the embodiment, the LED 19 is provided on the blade 3, but the LED 19 may be disposed on the handle 2. That is, an LED is disposed so as to irradiate light to the blade 3 side with respect to the lower mounting portion 7 of the handle 2, and an acrylic resin or the like can guide the blade 3 inside the light guide. By forming a portion and forming this light guide portion up to the tip of the blade 3, the light emitted from the LED can be guided to the tip of the blade 3 to illuminate the imaging region E1. Further, the blade 3 itself may be formed of a light guide material.

  In this way, since the blade 3 itself can be used as a light guide, the size of the blade 3 is reduced by an amount corresponding to the optical fiber as compared with the case where light is guided by arranging an optical fiber or the like. Thus, the portability of the laryngoscope 1 can be further enhanced.

  According to the laryngoscope 1 of the embodiment provided with the external output interface 27, the state of the tip of the blade 3 imaged by the CCD camera 18 can be displayed on another display device (display or the like). A person other than the person can also check the situation of the glottis H2. Therefore, according to this laryngoscope 1, it can be effectively used not only in an emergency site but also in a medical facility.

  The external output interface 27 is preferably configured to wirelessly output image data captured by the CCD camera 18.

  In this way, it is possible for the user of the laryngoscope 1 to make a determination difficult because the imaging data from the imaging unit can be transmitted to a doctor or the like located away from the patient and a determination based on the imaging data can be obtained. Appropriate measures can be taken even in situations.

  According to the laryngoscope 1 of the embodiment including the power control unit 32 that preferentially supplies power to the LED 19 when the amount of supplied power is insufficient, the remaining amount of the battery 9 is reduced. In addition, by illuminating the glottis H2 of the patient with the LED 19, the minimum function of the laryngoscope 1 such that the glottis H2 is visually recognized can be maintained.

  In the above-described embodiment, the example in which the power supply interface 28 is formed for connecting the AC adapter has been described. However, instead of or in addition to the interface 28, another interface can be formed for charging the battery 9. .

  That is, a simple operation of placing the laryngoscope 1 on the interface by separately forming a cradle that receives power supply from an external power source and forming a terminal connectable to the interface of the laryngoscope 1 on the cradle. Thus, the battery 9 can be charged.

It is a side view which shows the laryngoscope which concerns on embodiment of this invention. It is a rear view of the laryngoscope of FIG. It is the III-III sectional view taken on the line of FIG. FIG. 4 is a cross-sectional view taken along line IV-IV of the handle shown in FIG. 1. It is side surface sectional drawing which shows the structure of the imaging unit in the laryngoscope of FIG. FIG. 2 is an enlarged view of a blade in a use posture of the laryngoscope of FIG. 1, (a) is a rear view, and (b) is a side view. It is a side view which expands and shows the braid | blade of the laryngoscope of FIG. 1, (a) has shown the state made into the attachment / detachment position, (b) has each shown the state removed from the handle | steering-wheel. It is a block diagram which shows the electric constitution of the control part incorporated in the laryngoscope of FIG. It is a flowchart which shows the process performed by the control part of FIG. It is the schematic which shows the use condition of the laryngoscope of FIG. 1, (a) has shown the state which inserted the braid | blade in the patient's oral cavity, (b) has each shown the state which pulled up the patient's epiglottis. It is the schematic which shows the state which intubated the patient with the endotracheal tube using the laryngoscope in the state of FIG. 9, (b).

Explanation of symbols

1 Laryngoscope 2 Handle 3 Blade 4 Monitor (Display)
8 Control unit 9 Battery 12 Imaging unit 14 Storage box (storage unit)
18 CCD camera (imaging part)
19 LED (lighting part)
27 External output interface (interface)
33 Power determination unit

Claims (9)

A laryngoscope having a handle and a blade cantilevered at one end of the handle,
An imaging unit in which an area ahead of the blade is set as an imaging area;
An illumination unit that illuminates the imaging region;
A laryngoscope comprising: a display unit provided at the other end of the handle and displaying a state of a blade tip imaged by the imaging unit.   The laryngoscope according to claim 1, wherein the handle is provided with a battery that supplies power to the imaging unit, the illumination unit, and the display unit.   The laryngoscope according to claim 1, wherein the display unit is connected to the handle so as to be tiltable.   The laryngoscope according to claim 1, wherein the blade is detachably connected to a handle.   The laryngoscope according to claim 4, wherein the imaging unit and the illumination unit are housed in a common housing unit, and the housing unit is detachable from the blade.   The illumination unit is provided on the handle, and a light guide unit that guides illumination light of the illumination unit to an imaging region of the imaging unit is formed at least in part on the blade. The laryngoscope according to any one of claims 1 to 4.   The laryngoscope according to claim 1, further comprising an interface for outputting imaging data by the imaging unit.   The laryngoscope according to claim 7, wherein the interface is configured to wirelessly output imaging data from the imaging unit.   When the control unit further adjusts the amount of power supplied to the imaging unit, the illumination unit, or the display unit in accordance with the remaining amount of the battery, the control unit is less than a preset remaining amount The laryngoscope according to any one of claims 2 to 8, wherein power is preferentially supplied to the illumination unit.

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