CN112450858B

CN112450858B - Handheld portable high-definition electronic nasopharyngoscope

Info

Publication number: CN112450858B
Application number: CN202011342739.2A
Authority: CN
Inventors: 朱小伟; 王俊健
Original assignee: Suzhou Frankenman Medical Equipment Co Ltd
Current assignee: Suzhou Frankenman Medical Equipment Co Ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2022-09-02
Anticipated expiration: 2040-11-26
Also published as: CN112450858A

Abstract

The invention discloses a handheld portable high-definition electronic nasopharyngoscope, and relates to the technical field of medical equipment. The endoscope comprises an endoscope tube and two holding shells, wherein the two holding shells are fixedly connected with each other, one ends of the two holding shells are respectively provided with a bending component, the two bending components are fixedly connected with each other, and a transmission component is arranged in each holding shell; the bending assembly comprises a second guide block, a guide shell is fixed on the outer wall of one end of the bending assembly, the guide shell is positioned between the two rotating seats and is respectively and rotatably connected with the two rotating seats through a rotating shaft, a second fixed block is fixed on the inner wall of the bending assembly, and the second guide block is clamped at the other end of the bending assembly; according to the invention, through the arrangement of the bending component and the transmission component, the tube can rapidly and conveniently enter the throat or the part below the throat in a mechanical manner, and the problem that the tube of the existing nasopharyngoscope laryngoscope is difficult to enter the throat or the part below the throat of a patient is solved.

Description

Handheld portable high-definition electronic nasopharyngoscope

Technical Field

The invention belongs to the technical field of medical equipment, and particularly relates to a handheld portable high-definition electronic nasopharyngoscope.

Background

An electronic nasopharyngoscope is a medical apparatus for examining nasopharynx, throat and throat, performing biopsy, surgical treatment of vocal nodule or small vocal cord polyp, and taking foreign body from throat, and is an optical fiber device, when performing detailed examination of throat, the focus can be enlarged thousands times by using the imaging technology of microscope, doctors can use the operation forceps to perform outpatient surgical treatment of vocal cord polyp, vocal nodule and other vocal cord pathological changes, the operation time is short, but when performing throat examination, the current electronic nasopharyngoscope needs to put the endoscope tube and lens into the throat of a patient together by medical staff and examine the focus of the patient, because the endoscope tube is a flexible tube, the endoscope tube is not easy to control and complicated to operate when going from oral cavity to the part below throat, not only wastes time, but also causes discomfort to the patient.

Therefore, the invention designs a handheld portable high-definition electronic nasopharyngoscope to solve the problems.

Disclosure of Invention

The invention aims to provide a handheld portable high-definition electronic nasopharyngoscope which can be quickly and conveniently placed into the throat or the part below the throat in a mechanical mode through the arrangement of a bending component and a transmission component, and solves the problem that the traditional nasopharyngoscope tube of the nasopharyngoscope is not easy to place into the throat or the part below the throat of a patient.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention provides a handheld portable high-definition electronic nasopharyngoscope which comprises a lens tube and a pair of holding shells, wherein the two holding shells are fixedly connected, one ends of the two holding shells are respectively provided with a bending component, the two bending components are fixedly connected, and a transmission component is arranged in each holding shell;

the bending assembly comprises a second guide block, a guide shell is fixed on the outer wall of one end of the bending assembly, the guide shell is positioned between the two rotary seats and is respectively and rotatably connected with the two rotary seats through a rotating shaft, a second fixed block is fixed on the inner wall of the bending assembly, the two second fixed blocks are connected through fasteners, the fasteners are respectively in threaded fit with the two second fixed blocks, and the second guide block is clamped at the other end of the bending assembly;

the transmission assembly comprises an installation box and a cover plate, a second installation block is fixed to the bottom end of the installation box, two motors are installed in the installation box, and rotating shafts of the motors penetrate through the installation box and are fixed with idler wheels.

Furthermore, a rubber sleeve is arranged on the outer side of the roller, the second mounting block and the cover plate are fixed through screws, a plurality of heat dissipation holes are formed in one surface of the cover plate, the second mounting block is located in the second abdicating groove and attached to the lower surface of the first mounting block, and the first mounting block and the second mounting block are fixed through screws; the holding assembly is further arranged in the holding shell and comprises a sleeve, a third abdicating groove is formed in the bottom of the sleeve, a plurality of groups of second limiting blocks are fixed at positions, corresponding to the clamping blocks, of the outer wall of the sleeve, the sleeve is located in the first clamping groove and attached to the inner wall of the first clamping groove, and the second limiting blocks are located on two sides of the corresponding clamping blocks.

Further, the crooked subassembly other end is fixed with the T-shaped piece, the cross-section of T-shaped piece is the T shape, the spout has been seted up to second guide piece outer wall, the T-shaped piece is located the spout, second guide piece inner wall is equipped with clean cover.

Further, two the shells inner wall that grips all is fixed with first fixed block, the switch slot has been seted up to the side of gripping the casing week, the switch slot runs through and grips the casing and extend to in the first fixed block, the switch slot internal rotation is connected with the on & off switch, one the fixed intercommunication of shells outer wall grips there is the connecting cylinder, two shells one end that grips all is fixed with places the box, it has two roating seats and first guide block to place a box fixed surface, it has seted up the second groove of stepping down to place the box lower surface, the second groove outward flange top of stepping down is fixed with first installation piece, the shells inner wall that grips is fixed with a plurality of fixture blocks, first draw-in groove has been seted up on a fixture block surface.

Further, it is fixed with first stopper to place the box outer wall, the thickness of first stopper is 2-5 mm, the cover is equipped with the lag on the first stopper, the lag outer wall is concavity under the cambered surface, the second groove of stepping down is the U-shaped, the second groove edge of stepping down distributes with the interior arc line of first installation piece is crisscross, the second draw-in groove has been seted up to first draw-in groove inner wall, the joint has the sterilamp in the second draw-in groove, one the on & off switch passes through the wire and constitutes the series circuit with two sterilamps and battery, the appearance of second draw-in groove is rectangle and circular assembly, the second draw-in groove is close to first draw-in groove one side rectangle, the second draw-in groove is kept away from first draw-in groove one side and is circular.

Furthermore, the number of the on-off keys is two, one of the on-off keys is used for controlling the two motors to rotate so as to push the lens tube out of the bending assembly, the other on-off key is used for controlling the two motors to rotate so as to take the lens tube into the bending assembly, and a position sensor is further arranged in the holding shell and used for detecting the pushing distance of the lens tube.

Further, the position sensor is an encoder connected with a motor shaft of the motor, or an infrared sensor arranged in the holding shell, the position sensor is connected with the controller, and the controller is used for stopping the motor when the displacement of the mirror tube exceeds a preset distance.

Furthermore, a display assembly is arranged on the outer wall of the holding shell and comprises a square block, a rotary drum is fixed on one side of the square block, the connecting cylinder is rotatably connected with the rotary drum, a display screen is arranged on one surface of the square block, a storage battery is arranged in the square block, a charging port and a trigger switch are arranged on the other side of the square block, and the charging port is connected with the storage battery through a wire; mirror tube one end is equipped with the viewing aperture, be equipped with camera lens and cold light source lamp in the viewing aperture, trigger switch, battery, display screen, camera lens and cold light source lamp pass through the wire and constitute the series circuit, the camera lens passes through image acquisition circuit and central processing unit and display screen electric connection.

The invention has the following beneficial effects:

1. according to the invention, through the arrangement of the bending component and the transmission component, medical staff can control the motor to operate through the on-off key, the motor can drive the roller to rotate when operating, the rotating roller can drive the endoscope tube to move outwards from two sides of the endoscope tube and enter the throat or the part below the throat under the guidance of the second guide block, and the endoscope tube can quickly reach the focus part by matching with the lens.

2. According to the nasopharyngoscope, the bending component is arranged, so that the lens part at the front end of the lens tube can be protected in the bending component when the nasopharyngoscope is not used, the lens part cannot be contacted with other objects, the possibility that the lens part collides with the foreign objects is avoided, the service life of the nasopharyngoscope is prolonged, and unnecessary waste is reduced.

3. According to the invention, through the arrangement of the accommodating component and the sterilizing lamp, on one hand, the lens tube can be stored in the sleeve when not in use, and as the lens tube is a flexible tube and has certain toughness, the lens tube can be damaged when being bent excessively, the service life of the lens tube is shortened if the lens tube is too long, the lens tube can be damaged if the lens tube is too long, the lens tube can be effectively prevented from being bent excessively when being stored in the sleeve, the service life of the lens tube is prolonged, on the other hand, the sterilizing lamp can be used for sterilizing the lens tube, the growth of bacteria is avoided, and the life safety of a patient is ensured.

4. According to the invention, through the arrangement of the holding shell and the display assembly, the display screen can rotate, so that the best observation visual angle is provided for medical staff, the observation of the medical staff is facilitated, the diagnosis reliability is improved, and the neck pressure of the medical staff is relieved.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a hand-held portable high-definition electronic nasopharyngoscope;

FIG. 2 is a schematic view of the structure of the grip housing and the flexure assembly when connected;

FIG. 3 is a schematic view of the connection of the grip housing, the receiving assembly, the mirror tube, the driving assembly and the germicidal lamp;

FIG. 4 is a schematic structural view of a grip housing;

FIG. 5 is a schematic structural view of a display module;

FIG. 6 is a schematic view of the transmission assembly;

FIG. 7 is a schematic structural view of a flexure assembly;

FIG. 8 is a schematic structural view of the containment assembly;

in the drawings, the components represented by the respective reference numerals are listed below:

1. a grip housing; 101. a first abdicating groove; 102. a first fixed block; 103. a connecting cylinder; 104. a switch slot; 105. placing the box; 106. a first stopper; 107. a rotating base; 108. a first guide block; 109. a second abdicating groove; 110. a first mounting block; 111. a clamping block; 112. a first card slot; 113. a second card slot; 2. a bending assembly; 201. a guide housing; 202. a second fixed block; 203. a fastener; 204. a T-shaped block; 205. a second guide block; 206. cleaning the sleeve; 3. a display component; 301. a square block; 302. a rotating drum; 303. a display screen; 304. a charging port; 4. a containment assembly; 401. a sleeve; 402. a third abdicating groove; 403. a second limiting block; 5. a mirror tube; 6. a transmission assembly; 601. mounting a box; 602. a second mounting block; 603. a motor; 604. a roller; 605. a rubber sleeve; 606. a cover plate; 7. an anti-slip sleeve; 8. a protective sleeve; 9. a sterilizing lamp; 10. and (5) switching a key.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the invention is a hand-held portable high-definition electronic nasopharyngoscope, comprising a lens tube 5, and further comprising two holding shells 1, wherein the two holding shells 1 are fixed by screws, one end of each of the two holding shells 1 is provided with a bending component 2, the arrangement of the bending components 2 is convenient for changing the direction of the lens tube 5 and better reaching a focus position from a patient's mouth, on the one hand, the lens can be stored and protected when not in use, the two bending components 2 are fixed by a fastener 203, the outer wall of one of the holding shells 1 is provided with a display component 3, the display component 3 can enable information collected by the lens to be watched by medical staff through a display screen 303, so that the medical staff can diagnose the state of an illness accurately, the holding shells 1 are internally provided with a holding component 4 and a transmission component 6, and the holding component 4 is arranged, the mirror tube 5 is convenient to store, the mirror tube 5 is prevented from being broken, and the driving assembly 6 is arranged, so that the mirror tube 5 can quickly and conveniently enter the throat of a patient in a mechanical mode;

the inner walls of the two holding shells 1 are both fixed with a first fixing block 102, the circumferential side of the holding shell 1 is provided with a switch slot 104, the switch groove 104 penetrates through the holding shell 1 and extends into the first fixing block 102, the switch groove 104 is rotationally connected with a switch key 10, the outer wall of one holding shell 1 is fixedly communicated with a connecting cylinder 103, one end of each of the two holding shells 1 is fixedly provided with a placing box 105, the placing box 105 has two rotary bases 107 and a first guide block 108 fixed to one surface thereof, so that the bending module 2 is rotated by the rotary bases 107, at the same time, the first guide block 108 can guide the lens tube 5, enhance the toughness of the lens tube 5 in the bending component 2, the lower surface of the placing box 105 is provided with a second abdicating groove 109, a first mounting block 110 is fixed above the outer edge of the second abdicating groove 109, a plurality of clamping blocks 111 are fixed on the inner wall of the holding shell 1, and a first clamping groove 112 is formed in one surface of each clamping block 111;

the bending assembly 2 comprises a second guide block 205, a guide housing 201 is fixed on the outer wall of one end of the bending assembly 2, the guide housing 201 is positioned between the two rotary seats 107, the guide housing 201 is respectively connected with the two rotary seats 107 through a rotating shaft in a rotating manner, a second fixed block 202 is fixed on the inner wall of the bending assembly 2, the two second fixed blocks 202 are connected through fasteners 203, the fasteners 203 are respectively in threaded fit with the two second fixed blocks 202, and the second guide block 205 is clamped at the other end of the bending assembly 2;

the display assembly 3 comprises a square block 301, a rotary drum 302 is fixed on one side of the square block 301, the connecting drum 103 is rotatably connected with the rotary drum 302, a display screen 303 is arranged on one surface of the square block 301, a storage battery is arranged in the square block 301, a charging port 304 and a trigger switch are arranged on the other side of the square block 301, and the charging port 304 is connected with the storage battery through a conducting wire;

the accommodating component 4 comprises a sleeve 401, a third abdicating groove 402 is formed in the bottom of the sleeve 401, a plurality of groups of second limiting blocks 403 are fixed on the outer wall of the sleeve 401 at positions corresponding to the positions of the clamping blocks 111, the sleeve 401 is located in the first clamping groove 112 and attached to the inner wall of the first clamping groove 112, and each group of second limiting blocks 403 are located on two sides of the corresponding clamping block 111, so that the accommodating component 4 is conveniently clamped on the clamping block 111;

the transmission assembly 6 comprises a mounting box 601 and a cover plate 606, a second mounting block 602 is fixed at the bottom end of the mounting box 601, two motors 603 are installed in the mounting box 601, a rotating shaft of each motor 603 penetrates through the mounting box 601 and is fixed with a roller 604, a rubber sleeve 605 is arranged on the outer side of each roller 604, the second mounting block 602 is fixed with the cover plate 606 through screws, a plurality of heat dissipation holes are formed in one surface of the cover plate 606, the second mounting block 602 is located in a second abdicating groove 109 and is attached to the lower surface of the first mounting block 110, and the first mounting block 110 and the second mounting block 602 are fixed through screws.

The endoscope tube bending device is characterized in that the number of the switch keys 10 is two, one of the switch keys 10 is used for controlling the two motors 603 to rotate so as to push the endoscope tube 5 out of the bending component 2, the other switch key 10 is used for controlling the two motors 603 to rotate so as to take the endoscope tube 5 into the bending component 2, and a position sensor is further arranged in the holding shell 1 and used for detecting the pushing distance of the endoscope tube 5. The position sensor is an encoder connected with a motor shaft of the motor 603, or an infrared sensor arranged in the holding shell 1, the position sensor is connected with a controller, and the controller is used for stopping the motor 603 when the displacement of the mirror tube 5 exceeds a preset distance.

The running direction of the motor is controlled by setting different switches, so that the endoscope tube 5 extends out or is retracted into the bending component 2, the controllability is good, and the sensor can prevent the endoscope tube from extending out too long to cause injury to a patient or retracting too much to cause damage to instruments. Effectively avoiding the problems caused by manual control.

Further, as shown in fig. 1 and 2, two the first groove 101 of stepping down, two have all been seted up to the casing 1 outer wall of gripping the first groove 101 of stepping down the endotheca is equipped with anti-skidding cover 7, a plurality of anti-skidding grooves have been seted up to anti-skidding cover 7 week side, have increased the frictional force of hand with anti-skidding cover 7 for the effect of gripping is tighter, and anti-skidding cover 7 is the rubber material simultaneously, has also increased the feeling of gripping.

Further, as shown in fig. 2 and 3, it is fixed with first stopper 106 to place box 105 outer wall, the thickness of first stopper 106 is 3 mm, is convenient for install lag 8 and change, the cover is equipped with lag 8 on the first stopper 106, the outer wall of lag 8 is concave under the cambered surface, and lag 8 is the silica gel material, and lag 8 and patient's tooth contact during the use have played the effect of strutting the oral cavity on the one hand, and on the other hand has played the guard action to the equipment.

Further, as shown in fig. 4 and 6, the second yielding groove 109 is U-shaped, the edge of the second yielding groove 109 is staggered with the inner arc of the first mounting block 110, the inner arc of the first mounting block 110 is located in the edge of the second yielding groove 109, and the difference value is 7 mm, so that the first mounting block 110 and the second mounting block 602 are fixed by screws.

Further, as shown in fig. 3 and 4, a second clamping groove 113 is formed in the inner wall of the first clamping groove 112, the sterilamp 9 is clamped in the second clamping groove 113, the on-off switch 10 forms a series circuit with the two sterilamps 9 and the storage battery through a wire, when the sterilamp 9 normally works, the two sterilamps 9 can disinfect the lens tube 5 from two sides to prevent bacteria from breeding, the second clamping groove 113 is a rectangular and circular combination, the second clamping groove 113 is close to the rectangle on one side of the first clamping groove 112, the side of the second clamping groove 113 away from the first clamping groove 112 is circular, the width of the rectangle is smaller than the diameter of the circle, the difference value is 0.3 mm, and the housing 1 is made of plastic, so that the sterilamp 9 can be conveniently clamped in the second clamping groove 113 to fix the sterilamp 9.

Further, as shown in fig. 7, a T-shaped block 204 is fixed at the other end of the bending assembly 2, the cross section of the T-shaped block 204 is T-shaped, a sliding groove is formed in the outer wall of the second guide block 205, the T-shaped block 204 is located in the sliding groove, so that the second guide block 205 can be conveniently clamped at one end of the bending assembly 2 through the T-shaped block 204, the second guide block 205 is convenient to install and replace, a cleaning sleeve 206 is arranged on the inner wall of the second guide block 205, edible lubricating oil is sprayed on the cleaning sleeve 206, when the endoscope tube 5 is scratched from the surface of the cleaning sleeve 206, edible lubricating oil can be wiped, on one hand, the endoscope tube 5 can conveniently slide out from the second guide block 205, and on the other hand, friction between the endoscope tube 5 and internal organs of a patient is reduced.

Further, as shown in fig. 3, the lens tube 5 is a flexible tube and has a certain toughness, the one end of the lens tube 5 is provided with an observation port, the inside of the observation port is provided with a lens and a cold light source lamp, the cold light source lamp is arranged to provide a light source, and the lens can collect illness state information conveniently.

Further, as shown in fig. 1 and 5, the trigger switch, the storage battery, the display screen 303, the lens and the cold light source lamp form a series circuit through wires, the lens is electrically connected with the display screen 303 through the image acquisition circuit and the central processing unit, and information collected by the lens is conveniently presented on the display screen 303 for medical staff to watch.

Further, as shown in fig. 1, 3 and 6, another switch 10 forms a series circuit with the two motors 603 and the storage battery through wires, so as to control the operation of the motors 603 through the switch 10.

Further, as shown in fig. 3 and 8, the lens tube 5 is located in the sleeve 401, the lens tube 5 is in clearance fit with the first guide block 108 and the cleaning sleeve 206, so that the lens tube 5 can be guided, and the lens tube 5 is attached to the rubber sleeve 605, so that the rubber sleeve 605 can clamp the lens tube 5 from two sides.

In laryngoscopy, firstly, the fastener 203 is rotated to enable the two bending assemblies 2 to be in a separated state, then the motor 603 is operated through an on-off switch 10, further the lens tube 5 is enabled to extend outwards from the first guide block 108 under the action of the two rollers 604, when the lens extends to a certain length, the two bending assemblies 2 are folded, the lens tube 5 is limited from two sides through the two second guide blocks 205, the lens is arranged outside the two bending assemblies 2, then the two bending assemblies 2 are fixed through the fastener 203, then the lens, the display screen 303 and the cold light source lamp are enabled to be in a working state through a trigger switch, then the bending assemblies 2 and the protective cover 8 are placed in the oral cavity of a patient, at the moment, the teeth of the patient are in contact with the protective cover 8, one end of the bending assemblies 2 and the lens are positioned near the root of the tongue, the motor 603 is operated through the on-off switch 10, under the transmission action of the rollers 604 and the guide action of the second guide blocks 205, one end of the lens tube 5 and the lens can enter the throat from the oral cavity to reach the focus, under the irradiation of the cold light source lamp, the lens can collect images at the focus, the images are processed by the image collecting circuit and the central processing unit, finally collected images are displayed on the display screen 303 to be watched by medical staff, and the instruments need to be disinfected before and after being used.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a handheld portable high definition electron nasopharyngoscope, includes mirror tube (5), its characterized in that: the foldable electric hand-held device comprises two holding shells (1), wherein the two holding shells (1) are fixedly connected, one ends of the two holding shells (1) are respectively provided with a bending component (2), the two bending components (2) are fixedly connected, and a transmission component (6) is arranged in each holding shell (1);

the bending assembly (2) comprises a second guide block (205), a guide shell (201) is fixed on the outer wall of one end of the bending assembly (2), the guide shell (201) is located between the two rotary seats (107), the guide shell (201) is respectively rotatably connected with the two rotary seats (107) through a rotating shaft, a second fixed block (202) is fixed on the inner wall of the bending assembly (2), the two second fixed blocks (202) are connected through a fastener (203), the fastener (203) is respectively in threaded fit with the two second fixed blocks (202), and the second guide block (205) is clamped at the other end of the bending assembly (2);

the transmission assembly (6) comprises a mounting box (601) and a cover plate (606), a second mounting block (602) is fixed at the bottom end of the mounting box (601), two motors (603) are mounted in the mounting box (601), a rotating shaft of each motor (603) penetrates through the mounting box (601) and is fixed with a roller (604), a rubber sleeve (605) is arranged on the outer side of each roller (604), the second mounting block (602) is fixed with the cover plate (606) through screws, a plurality of heat dissipation holes are formed in one surface of the cover plate (606), the second mounting block (602) is located in a second abdicating groove (109) and is attached to the lower surface of the first mounting block (110), and the first mounting block (110) and the second mounting block (602) are fixed through screws; the holding shell is internally provided with a holding assembly (4), the holding assembly (4) comprises a sleeve (401), the bottom of the sleeve (401) is provided with a third abdicating groove (402), the position of the outer wall of the sleeve (401) corresponding to the clamping block (111) is fixedly provided with a plurality of groups of second limiting blocks (403), the sleeve (401) is positioned in the first clamping groove (112) and is attached to the inner wall of the first clamping groove (112), each group of the second limiting blocks (403) is positioned at two sides of the corresponding clamping block (111), the other end of the bending assembly (2) is fixedly provided with a T-shaped block (204), the cross section of the T-shaped block (204) is T-shaped, the outer wall of the second guide block (205) is provided with a sliding groove, the T-shaped block (204) is positioned in the sliding groove, the inner wall of the second guide block (205) is provided with a cleaning sleeve (206), and the inner wall of the holding shell (1) is fixedly provided with a first fixing block (102), the side face of the shell (1) is provided with a switch groove (104), the switch groove (104) penetrates through the shell (1) and extends into the first fixing block (102), the switch groove (104) is connected with a switch key (10) in a rotating mode, the outer wall of the shell (1) is fixedly communicated with a connecting cylinder (103), one end of the shell (1) is fixedly provided with a placing box (105), one surface of the placing box (105) is fixedly provided with two rotating seats (107) and a first guide block (108), the lower surface of the placing box (105) is provided with a second abdicating groove (109), a first mounting block (110) is fixed above the outer edge of the second abdicating groove (109), the inner wall of the shell (1) is fixed with a plurality of clamping blocks (111), one surface of each clamping block (111) is provided with a first clamping groove (112), and the outer wall of the placing box (105) is fixed with a first limiting block (106), the thickness of first stopper (106) is 2-5 mm, the cover is equipped with lag (8) on first stopper (106), lag (8) outer wall is concavity under the cambered surface, second groove (109) of stepping down is the U-shaped, second groove (109) of stepping down edge and the crisscross distribution of interior arc line of first installation piece (110), second draw-in groove (113) have been seted up to first draw-in groove (112) inner wall, the joint has sterilamp (9), one in second draw-in groove (113) on-off switch (10) constitute the series circuit through wire and two sterilamp (9) and battery, the appearance of second draw-in groove (113) is rectangle and circular shape assembly, second draw-in groove (113) are close to first draw-in groove (112) one side rectangle, second draw-in groove (113) keep away from first draw-in groove (112) one side and are circular.

2. The handheld portable high-definition electronic nasopharyngoscope according to claim 1, wherein the number of the switch keys (10) is two, one of the switch keys (10) is used for controlling the two motors (603) to rotate to push the endoscope tube (5) out of the bending component (2), the other switch key (10) is used for controlling the two motors (603) to rotate to put the endoscope tube (5) into the bending component (2), and a position sensor is further arranged in the holding shell (1) and used for detecting the pushing distance of the endoscope tube (5).

3. A hand-held portable high definition electronic nasopharyngoscope according to claim 2, wherein the position sensor is an encoder connected to the motor shaft of the motor (603) or an infrared sensor provided in the holding case (1), and the position sensor is connected to a controller for stopping the motor (603) when the tube (5) is displaced over a preset distance.

4. A hand-held portable high-definition electronic nasopharyngoscope according to any one of claims 1-3, wherein a display component (3) is arranged on the outer wall of the holding case (1), the display component (3) comprises a square block (301), a rotary drum (302) is fixed on one side of the square block (301), the connecting drum (103) is rotatably connected with the rotary drum (302), a display screen (303) is arranged on one surface of the square block (301), a storage battery is arranged in the square block (301), a charging port (304) and a trigger switch are arranged on the other side of the square block (301), and the charging port (304) is connected with the storage battery through a wire; mirror tube (5) one end is equipped with the viewing aperture, be equipped with camera lens and cold light source lamp in the viewing aperture, trigger switch, battery, display screen (303), camera lens and cold light source lamp pass through the wire and constitute the series circuit, the camera lens passes through image acquisition circuit and central processing unit and display screen (303) electric connection.