CVL-1 Video Laryngoscope

“`html

Product Information

Specifications:

• Product Name: Video Laryngoscope
• Model: CVL-1/CVL-2/CVL-3/CVL-5
• Manufacturer: Shenzhen Comen Medical Instruments Co., Ltd.

Product Usage Instructions

Chapter 1: Safety

Ensure to carefully read and understand all safety information
provided in the manual to prevent any risks.

Chapter 2: Warranty Service

Refer to this section for information on warranty coverage and
procedures for service.

Chapter 3: Cleaning and Disinfection

Follow the guidelines in this section to properly clean and
disinfect the video laryngoscope for safe usage.

Chapter 4: Working Principle

Understand the working principle of the video laryngoscope to
operate it effectively.

Chapter 6: Software Upgrade

Learn how to upgrade the software of the device for enhanced
performance.

Chapter 7: Performance Verification

Perform the photo shooting and video recording test as explained
in this section to ensure device functionality.

FAQ (Frequently Asked Questions)

Q: How often should I clean the video laryngoscope?

A: It is recommended to clean and disinfect the video
laryngoscope after each use to maintain hygiene and prevent
contamination.

Q: Can I upgrade the software of the video laryngoscope

myself?

A: Yes, you can upgrade the software following the instructions
provided in the manual under the Software Upgrade section.

“`

Video Laryngoscope
Service Manual
Shenzhen Comen Medical Instruments Co., Ltd.

Service Manual of Video Laryngoscope
Copyright
Shenzhen Comen Medical Instruments Co., Ltd. No.: 046-00000599-00 Version: A00 Product Name: Video Laryngoscope Model: CVL-1/CVL-2/CVL-3/CVL-5
Statement
Shenzhen Comen Medical Instruments Co., Ltd. (hereinafter referred to as Comen or Comen company) owns the copyright of this non-public published service manual and has the right to treat it as confidential information. This Manual is only intended for users as a reference for maintenance of Comen product. No one shall disclose the contents hereof to any other person. This Manual contains proprietary materials protected by copyright law. All rights are reserved by Comen. No part of this Manual may be reproduced, copied or translated into other languages in any form without written permission of Comen. Comen shall assume no liability for misuse of the information contained herein or any incidental or indirect damages arising from improper operation or actual performance due to use of this Manual. This Manual does not imply the transfer of any proprietary right under patent law to any third party. Comen shall not be liable for any legal consequences arising out of breach of the patent law or infringement of any third-party rights. The contents of this Manual are subject to change without notice.
Contact Information
Name: After-sales Service Department of Shenzhen Comen Medical Instruments Co., Ltd. Address: Floor 5 of Building 2, FIYTA Timepiece Building, Nanhuan Avenue, Matian Sub-district, Guangming District, Shenzhen, Guangdong, 518106, P.R. China Tel.: +86-755-26431236, +86-755-86545386, +86-755-26074134 Fax: +86-755-26431232 Customer Service Hotline: +86-755-4007009488
I

Service Manual of Video Laryngoscope
Blank Page
II

Service Manual of Video Laryngoscope
Contents
Chapter 1 Safety ……………………………………………………………………………………………………………………………..1-1 1.1 Safety Information………………………………………………………………………………………………………………1-1 1.2 Symbols …………………………………………………………………………………………………………………………….1-4
Chapter 2 Warranty Service………………………………………………………………………………………………………………2-1 Chapter 3 Cleaning and Disinfection………………………………………………………………………………………………….3-1 Chapter 4 Working Principle …………………………………………………………………………………………………………….4-1
4.1 Overview …………………………………………………………………………………………………………………………..4-1 4.1.1 Brief Introduction of Video Laryngoscope ……………………………………………………………………4-1 4.1.2 System Composition………………………………………………………………………………………………….4-1 4.1.3 System Structure Diagram………………………………………………………………………………………….4-2
4.2 Modules …………………………………………………………………………………………………………………………….4-2 4.2.1 Mainboard………………………………………………………………………………………………………………..4-2 4.2.2 Camera Subboard ……………………………………………………………………………………………………..4-5 4.2.3 Adapter ……………………………………………………………………………………………………………………4-6
Chapter 5 Troubleshooting ……………………………………………………………………………………………………………….5-1 5.1 Introduction ……………………………………………………………………………………………………………………….5-1 5.2 Replaceable Components …………………………………………………………………………………………………….5-1 5.3 Check the Video Laryngoscope …………………………………………………………………………………………….5-1 5.4 Check the Software……………………………………………………………………………………………………………..5-1 5.5 Troubleshooting………………………………………………………………………………………………………………….5-2 5.5.1 Power Error ……………………………………………………………………………………………………………..5-2 5.5.2 Display Failure …………………………………………………………………………………………………………5-2 5.5.3 Battery Error…………………………………………………………………………………………………………….5-3 5.5.4 Camera Malfunction ………………………………………………………………………………………………….5-3 5.5.5 Data Transfer Failure …………………………………………………………………………………………………5-4 5.5.6 Indicated Information of Indicators ……………………………………………………………………………..5-4
Chapter 6 Software Upgrade …………………………………………………………………………………………………………….6-1 6.1 Preparations for Upgrade……………………………………………………………………………………………………..6-1 6.2 System Software Upgrade ……………………………………………………………………………………………………6-1
Chapter 7 Performance Verification …………………………………………………………………………………………………..7-1 7.1 Photo Shooting and Video Recording Test ……………………………………………………………………………..7-1
Chapter 8 Maintenance and Disassembly……………………………………………………………………………………………8-1 8.1 Tools …………………………………………………………………………………………………………………………………8-1 8.2 Preparation for Disassembly…………………………………………………………………………………………………8-1 8.3 Remove the Battery …………………………………………………………………………………………………………….8-2
III

Service Manual of Video Laryngoscope
8.4 Remove the Mainboard ……………………………………………………………………………………………………….8-3 8.5 Remove the Camera Subboard ……………………………………………………………………………………………..8-4 Chapter 9 Components …………………………………………………………………………………………………………………….9-1 9.1 Introduction ……………………………………………………………………………………………………………………….9-1 9.2 Main Body…………………………………………………………………………………………………………………………9-2
9.2.1 Exploded View …………………………………………………………………………………………………………9-2 9.2.2 Parts List………………………………………………………………………………………………………………….9-3
IV

1.1 Safety Information

Chapter 1 Safety

WARNING
Alerts you to situations that may result in serious consequences or adverse events or endanger personal safety. Failure to observe this WARNING may cause severe injury or even death of the user or patient, or property damage.

CAUTION
Alerts you to potential dangers or unsafe operations, which, if not avoided, may result in minor injury, product failure or damage, or property damage, or cause more serious injury in the future.

NOTE
Emphasizes important precautions and provides instructions or explanations for better use of the product.

WARNING This product shall only be operated by trained doctors. Keep away from flammable materials such as anesthetics to prevent fire and explosion. The product is powered by battery, and only the charger supplied by our company shall be used to
charge the battery. DO NOT use it while charging. Please make sure that instrument functions and buttons are in good condition before use.
1-1

Safety
Prior to use, ensure that the device has no corrosion or sharp edge or protrusion, and ensure that the laryngoscopic blades have no sharp edge or protrusion.
Strictly follow the instructions for cleaning, disinfection and sterilization to prevent cross-infection before use and after use.
Please observe the local regulations or the hospital’s waste disposal policy when disposing of packaging materials. Keep the packaging materials out of the reach of pediatric.
DO NOT use the disposable laryngoscope blades if its package is damaged. Keep away from vibration, dust, corrosive or explosive gas, extreme temperature, humidity, etc. Avoid looking directly at the front light of the Video Laryngoscope. User shall not attempt to replace the LED light in the front of the Video Laryngoscope; in case of
any fault, please contact Comen. DO NOT open the housing of the Video Laryngoscope to avoid the potential risk of electric shock.
Any repair and upgrade of this device must be performed by the service personnel trained and authorized by Comen. If the device malfunctions, please contact Comen promptly. The device should not be used close to or in a stack with other devices. If such use is required, please observe the device to ensure its normal operation in the current configuration. If Video Laryngoscope malfunctions during use, place it in a neutral position and then slowly withdraw it. When the useful life of the device and its accessories is to expire, please dispose them in accordance with the local laws and regulations or the rules of the hospital. This device cannot be used together with any device that features high-power, high-temperature, high-radiation, high-noise or any device that generates volatile corrosive gases. Keep away from flammable anesthetic gas, nitrous oxide or other corrosive gas and dust. DO NOT use a mobile phone or other radio transmitter at the same time within a distance of 10m from the device when it is working. DO NOT use the device during MRI or CT examinations. DO NOT use the device in conjunction with high- frequency ESU or defibrillator. DO NOT use the device in direct sunlight. DO NOT disassemble the batteries or replace them with different type of batteries. DO NOT hit the sensor to prevent the damage of the chip.
1-2

Safety
Power off the device after each use in order to maintain its service life. Place the device on a stable and vibration-free table or in a well-ventilated cabinet. Follow the User Manual to disinfect and clean the device. Use the accessories and consumables approved by Comen only. DO NOT use the device while charging. Under the operating environment where the temperature reaches 40, it is suggested that the device
should not work for over 10min; otherwise, the temperature of applied parts in contact with human body or the emission part of LED light could be too high. When the device works normally, the temperature rise of accessories does not exceed 3.
CAUTION To avoid damage to the device and ensure the patient’s safety, please use accessories specified in this
Manual. Please properly install or carry the device to avoid damage caused by drop, collision, strong
oscillation or other external mechanical forces. Before powering on the device, please confirm that the supply voltage and frequency conforming to
the requirements specified on the device nameplate or in this Manual.
NOTE Carefully unpack it and take out the Video Laryngoscope and its accessories, and keep the packaging
materials for future transportation and storage. Check the accessories against the packing list. Check to see if there is any mechanical damage. In case of any problem, contact our Sales Department or agency immediately. Two backup video laryngoscopes are recommended in case the intubation doesn’t go smoothly. This Video Laryngoscope is suitable for adult, pediatric and neonatal patients.
1-3

Safety
1.2 Symbols
Device Symbols Note! USB port Environmental protection for 20 years

IPX0

Serial number IP Code
Alternating current Do not re-use

Type BF applied part Date of Manufacture
Package Symbols This way up Fragile, handle with care Humidity limitation Temperature limits

Table 1-1 Table 1-2

Battery level indicator ON/OFF button Waste electrical and electronic equipment sorting collection Manufacturer Refer to accompanied documentation Direct Current Sterilization with Ethylene Oxide Double insulation mark for Class II electrical appliance
Stacking limit by number Keep dry Atmospheric pressure limitation

1-4

Chapter 2 Warranty Service
The warranty period of the product you purchased is subject to the relevant sales contract. Consumables are consumable materials that should be replaced after each use or vulnerable materials that require periodic replacement; consumables are not covered by the warranty. The warranty period starts from the “Installation Date” shown on the Device Warranty Card provided attached to the product. Device Warranty Card is the only proof to calculate the warranty period. To protect your rights and interests, please fill in the Device Warranty Card after installation of the device, and hand over the second copy of the (“Comen Retained” Copy) Device Warranty Card to installer or send it back to the Customer Service Department of Shenzhen Comen Medical Instruments Co., Ltd. Please note that the following circumstances will void the warranty:

1. The Device Warranty Card is not filled in and returned by the customer within 30 days after installation and acceptance;
2. The device SN provided by the customer is incorrect (we confirm whether warranty service can be provided based on the device SN).
   You are entitled to our free after-sales services within the warranty period of the product; however, please note that Shenzhen Comen Medical Instruments Co., Ltd. will only provide paid services and you are required to pay the repair charges and part costs if the product requires repair for any of the following reasons:
   Man-made damage Improper use Grid voltage beyond the range specified for the product Failures caused by force majeure natural disaster Replacement with or use of any components or accessories not accepted by Comen or repair by any
   person not authorized by Comen Other failures not arising from the product itself Any failure of the product caused by use of reagents or other consumables not accepted by Comen will not be covered by the scope of repair services provided by Comen. Upon expiration of the warranty period, Comen can continue to provide paid repair services. If a product should be returned to Comen for repair, the transportation expense (including customs fees) should be on the customer’s account. If you do not pay or delay the payment for any charges of our paid repair services, Comen will suspend the provision of repair services until you make the payment.
   Return
   2-1

Warranty Service
If you need to return the product to Comen, please follow the procedure below: Request for product return: You must provide product serial number, which can be found on the product’s nameplate. If the serial number is illegible, your return request will be rejected. Please also present the serial number, manufacture date and briefly describe the reason for return.
2-2

Chapter 3 Cleaning and Disinfection
The main body of the Video Laryngoscope, charger and charging cable shall be cleaned regularly, and shall be cleaned more frequently in areas with severe pollution or heavy sandstorms. These are not waterproof components, and shall not be immersed when cleaning them. Any of the following detergent & disinfectant is recommended to clean and disinfect the product: OPA (5.5g/L), 75% alcohol, 70% isopropanol, 70% n-propanol, 3% hydrogen peroxide solution, or 0.5% sodium hypochlorite solution. Cleaning and disinfection before use:

1. Remove the disposable laryngoscope blade; 2) Wipe the main body with a soft, dust-free cloth soaked with 75% alcohol (or any other detergent &
   disinfectant listed above). Cleaning and disinfection after use:
2. Remove the disposable laryngoscope blade; 2) Wipe the main body with a soft, dust-free cloth soaked with 75% alcohol (or any other disinfectant
   listed above).
   WARNING Turn device off before the cleaning and disinfection to prevent damage. Device must be cleaned and disinfected before and after use. The used disposable laryngoscope blades must be disposed in accordance with local laws and hospital
   regulations. DO NOT reuse. Avoid impact and scratch on the transparent protector of the camera at the front of the support tube.
   DO NOT wipe it with strong acid or alkali solvents to avoid corrosion of the laryngoscope blade or the encapsulation adhesives, resulting in damage to the product.
   3-1

Chapter 4 Working Principle
4.1 Overview
4.1.1 Brief Introduction of Video Laryngoscope
The Video Laryngoscope is intended to provide assistance for tracheal intubation in ICU, Emergency Department and Anaesthesiology Department. It is mainly used to lift up the patient’s epiglottis to expose the glottis, and thus to guide the medical staff to perform tracheal intubation accurately. With laryngoscopic blades of suitable working length, HD camera and irradiation of LED light, the device achieves image taking and displays images clearly on the video image display unit, thus to guide the medical staff to perform tracheal intubation accurately and reduce injury caused to the patient during intubation.
4.1.2 System Composition
The Video Laryngoscope is composed of the main body, accessories and system software. As the core of the entire system, the main body mainly implements the following functions:
System power supply Real-time display of video recording screen System status indication User control and input Data storage
4-1

4.1.3 System Structure Diagram

Working Principle

SD card

DDR

Flash

USB interface

Camera module

Camera module

LED light source

Display screen module

Main control module

Touch screen

Gravity acceleration test
module
Fig. 4-1

SCM

4.2 Modules

Data export/ charging
USB interface
Power management IC
(PMIC)
Battery
LED indicator

4.2.1 Mainboard
As the core control system of the Video Laryngoscope, the mainboard is responsible for processing input and output control, data storage, processing and display, system control, and communication management. Below is the block diagram of communication control by the mainboard:

4-2

Battery Startup/shutdown circuit
Forced shutdown
Shutdown detection

Working Principle

1.0V power domain for main control (except CORE)

5V boost circuit

1.8V power domain for main control
1.0V power domain for main control CORE
DDR3 module for main control 3.3V power domain for main control Other 3.3V peripherals except main control

LCD backlight

IIC1: Capacitive screen

circuit

Indicator control

Peripheral power control PWM output UART communication

Fig. 4-2

Main control RV1108G

Capacitive screen

Fig. 4-3
4-3

Working Principle

Fig. 4-4

J13

VCC_LED_A, GND

J2

GND, CAM_5V

J8

LCD_3V3, GND, CTP_INT,

12C1_SDA_CAP_TOUCH,

12C1_SCL_CAP_TOUCH

J11

RGB_LEDA, VCC_IO, RGB_VSYNC,

DSI_DOP/LCD_D1, RGB_SPI_SCK,

RGB_SPI_SDA, GND, RGB_BO, RGB_B2,

RGB_B4, RGB_G1, RGB_G3, RGB_G5, RGB_R1

J18

GND, N23178418, N23178421, LCD_3V3

J3

GND, BAT+, SNSP, NTC

J5

TYPE_C_5V, USBDP_PC, USBDM_PC, GND

J9

TF_D1, TF_D0, GND, TF_CLK, LCD_3V3,

TF_CMD, TF_D3, TF_D2

Table 4-1

4-4

4.2.2 Camera Subboard

Working Principle

Pin 1 Pin 2 Pin 3 Pin 4
Camera end of camera subboard:

Fig. 4-5 Table 4-2

GND USB DUSB D+ VCC+5V

Brown wire

Fig. 4-6
4-5

SDA

Black wire White wire Pink wire Grey wire Blue wire Red wire Shielded wire
4.2.3 Adapter

Working Principle
Table 4-3

SCL MDP MDN MCP MCN VDO GND

Model of adapter Dimension of adapter Input Output

Fig. 4-7
GTM46101-1005-USB LWH: see Fig. 12 Voltage: 100-240V; Frequency: 50-60Hz Voltage: 5.0V; Power: 10W; Current: 2A Table 4-4
4-6

Working Principle
Fig. 4-8
4-7

Chapter 5 Troubleshooting
5.1 Introduction
This chapter introduces some common troubleshooting methods for the Video Laryngoscope. If the problem you encounter is not listed herein, please contact Comen’s After-sales Service Department in time.
5.2 Replaceable Components
Main parts and components in the PCB of the Video Laryngoscope are all replaceable. If any fault of an independent PCB is found, please replace it with a new one as instructed in the “Assembly and Disassembly” section, and last check whether the performance of the Video Laryngoscope returns to normal. If the problem persists, please reinstall the faulty PCB, and then continue troubleshooting according to the instructions of this Chapter. The faulty PCB can be sent to us for repair.
5.3 Check the Video Laryngoscope
During troubleshooting, sometimes you need to first check the hardware version and state of the device.
5.4 Check the Software
Some troubleshooting tasks may require you to check the software version of the Video Laryngoscope. View the version of system software. Upon startup, press the floating action button in the menu — swipe rightward to the menu on Page 2 — click Version to view the system software version.
5-1

5.5 Troubleshooting

Troubleshooting
Fig. 5-1

5.5.1 Power Error

Phenomenon

Causes

Low battery or Battery Error

The Video The ON/OFF button is damaged.

Laryngoscope

cannot start up The mainboard is damaged.

Action Check the battery power (normally >3.5V) Replace the ON/OFF button. Replace the mainboard (check whether the following test points on the mainboard are normal: TP5 (3.3V), TP4 (1V) and TP6 (1.5V)).

Cause analysis for other phenomena:

Low battery power protection is provided, so when the battery power is too low, the device cannot start up normally. Connect the supplied charger to recharge the battery for half an hour, and then remove the charger; press the ON/OFF button to check whether the device can start up normally.

Table 5-1

5.5.2 Display Failure

Phenomenon

Causes

Action

1. Check whether the cable between the

The flexible flat cable between the LCD screen and mainboard is connected

The Video Laryngoscope LCD screen and mainboard is properly.

works properly, but the faulty or poorly connected. screen is blank.

2. Check whether the cable or interface is damaged.

The LCD module is damaged.

Replace the LCD module.

The mainboard is damaged.

Replace the mainboard.

The Video Laryngoscope The connection cable is damaged 1. Check the cable connection between the

works properly, but the or poorly connected.

LED screen and mainboard.

screen is deficient in color The mainboard is damaged.

Replace the mainboard.

or blurred.

The LCD module is damaged.

Replace the LCD module.

Blinking screen

The connection cable is damaged 1. Check the cable connection between the

5-2

Troubleshooting

or poorly connected.

mainboard and LCD screen.

The mainboard is damaged.

Replace the mainboard.

The LCD module is damaged.

Replace the LCD module.

The connection cable is damaged 1. Check the cable connection between the

Uneven screen brightness or poorly connected.

mainboard and LCD screen.

The LCD module is damaged.

Replace the LCD module.

Cause analysis for other phenomena:

The Video Laryngoscope works properly, but the screen is dark and the brightness is not adjustable: After the mainboard transmits the display signal to the LCD screen, the backlight should work to achieve

clearer display of information on the screen. The screen brightness can be controlled through screen

operations. When the backlight control circuit of the SCM is damaged or the backlight control wire is

damaged, the screen will become dark.

Table 5-2

5.5.3 Battery Error

Phenomenon

Causes

Battery charging 1. The battery is damaged. failure
The mainboard is damaged.

The battery fails The battery is damaged. to supply power
The mainboard is damaged.

Action Recharge the battery for 3h; check the battery power, and use a multimeter to measure whether the voltage is around 4.2. If abnormal, please replace the battery. Replace the mainboard. Use a multimeter to measure the voltage; observe whether the voltage is within the range of 3.5V-4.2V. If abnormal, please replace the battery.
Replace the mainboard.

Table 5-3

5.5.4 Camera Malfunction

Phenomenon

Causes

Solutions

The data acquisition function of Restart the device.
There is no the camera is OFF.

picture in the Low battery
main interface.

Restart the device after charging for 3h or full charging

Camera module failure

Replace the camera module.

5-3

Troubleshooting

The mainboard is damaged.

Replace the mainboard.

The flexible flat cable of camera module becomes loose or is damaged.

Check the flexible flat cable between the mainboard and camera module.

Picture exists, but it is impossible to carry out photo shooting and video recording

The flexible flat cable of camera module becomes loose or is damaged. SD card is damaged. Mainboard failure Low battery

Check the flexible flat cable between the mainboard and camera module.
Replace the SD card. Replace the mainboard. Perform retest after the battery is fully charged

Table 5-4

5.5.5 Data Transfer Failure

Phenomenon

Causes

Solutions

After the device Type C data cable is damaged. Perform retest after replacing the Type C data cable.

is connected to a Mainboard failure

Replace the mainboard.

computer, the Poor contact of Type C data Check the connecting cable of Type C data cable, and

computer cannot cables

perform retest.

acquire data in

the SD card of the SD card is damaged.

Replace the SD card.

device.

Table 5-5

5.5.6 Indicated Information of Indicators
Refer to the User Manual.

5-4

Chapter 6 Software Upgrade
System software upgrade can be realized through connection to the computer with the data cable.
6.1 Preparations for Upgrade
1 Before the upgrade, please check the version of the software (refer to Section 5.4 for specific operations); 2 For development tools used for the first time, it is needed to burn to the Rockchip exclusive driver; the
driver is saved under the directory of “toolsCVRTools_Release_v1.00DriverAssitant_v4.5”, and will be installed automatically after running DriverInstall.exe; 3 Run “toolsCVRTools_Release_v1.00wps.exe” to open the burner.
6.2 System Software Upgrade
After completing the preparations, please upgrade the system software as follows: 1 Connect the computer and the device via the Type C data cable, and make the device enter the data transfer
mode; 2 The burner shows that MSC device is found; click the switching button in the burner to enter MASKROM
device mode; 3 Click Execute, and wait for several minutes for upgrade; the burner displays that download is finished.
NOTE
Before upgrading the software, please confirm with Comen After-sales Service Department whether the software package is compatible with your device.
Before upgrading the software, please disconnect the Video Laryngoscope from the patient. The upgrade process will take 30s~2min. Please ensure sufficient battery power. Program upgrades should be performed only by professional service personnel. DO NOT remove the Type C data cables during the software upgrade process.
6-1

Chapter 7 Performance Verification
7.1 Photo Shooting and Video Recording Test
Please follow the steps below: 1) Turn on the Video Laryngoscope. 2) When checking the main interface, a real-time video recording background will appear. 3) Click the Photo Shooting button; a prompt indicating successful photo shooting will appear. 4) Click the Video Recording button; video recording timekeeping will appear at the upper right corner of the main interface. 5) Enter the video file and picture file interface to view files saved.
If files saved can be viewed, it indicates the photo shooting and video recording function of the system is normal. Otherwise, the function is abnormal. At this moment, the operator should check whether the battery power is sufficient. After confirming that it is OK, perform the photo shooting and video recording test again. If there is still any fault prompt, please contact the manufacturer for repair.
7-1

Chapter 8 Maintenance and Disassembly
This Chapter describes the maintenance and disassembly steps of the Video Laryngoscope. Only qualified service personnel (biomedical engineer or technician) authorized by Comen are allowed to open the rear housing of the device and remove, replace or repair the components. If you do not have a qualified engineer, please contact Comen or your local Comen office.
NOTE
High voltage: when the device is connected to the power supply, there will be a life-threatening voltage. DO NOT perform any disassembly procedures after the device is powered on. Failure to observe this WARNING may result in serious personal injury or even death.
8.1 Tools
You may need the following tools when removing and replacing components: Phillips screwdrivers or Cross-head Screwdrivers Nippers Pliers Anti-static table mat and anti-static bracelet
8.2 Preparation for Disassembly
Please make the following preparations before disassembling the Video Laryngoscope: Turn off the Video Laryngoscope, and disconnect the power cord and all external connection accessories. Remove the Lithium Battery. See the Section 8.3.
WARNING
8-1

Maintenance and Disassembly
Service personnel should take anti-static measures before disassembly in order to avoid damage of electronic components.
Please disassemble the product following a certain sequence. To avoid irreversible damage of the product, DO NOT forcedly disassemble the product.
Please make sure all connecting cables have been disconnected before disassembly. Please properly place the disassembled screws and other parts by category to facilitate
use during reassembly and avoid loss. Please place the disassembled materials by module to avoid failure to find the required
materials or misuse of materials during reassembly. Please use proper screws during reassembly; forced installation of screws not of the
specified model could damage the product. Please make sure all parts of the current assembly have been properly connected before
installing the next assembly, thus to avoid missing problem which could cause failure of the product to work normally after assembly. If any waterproof requirement is placed on the device, ensure that the waterproof strip is properly installed during assembly.
8.3 Remove the Battery
WARNING
During disassembly of the Video Laryngoscope, first remove the battery and then the assemblies or parts inside the device.
The battery can be removed separately. During disassembly, please confirm that there is no hard foreign object in the area
where the product is placed to avoid scratching the device, touch screen, display screen or front end of camera holder. All operations should be completed by professionals. Please wear anti-static wrist straps or insulating gloves during repair.
1. Place the device face down, and use a pair of tweezers to prize up the rear shell (take care to prevent the tweezers from contacting the battery pack which could cause short circuit);
8-2

Maintenance and Disassembly

8.4 Remove the Mainboard
1. Remove the 3pcs of M2*0.4 screw;

Fig. 8-1

Fig. 8-2 2. Disconnect the cables connecting the display screen and the touch screen to the mainboard, and take out
the mainboard;
8-3

Maintenance and Disassembly
Fig. 8-3
8.5 Remove the Camera Subboard
1. Disconnect the cables connecting the mainboard; 2. Remove the 3pcs of M1.4*0.3 screw, and take down the camera subboard.
Fig. 8-4
8-4

Chapter 9 Components
9.1 Introduction
This Chapter provides an exploded view of the Video Laryngoscope and a description of parts, in order to explain the assembly relationship of the parts and facilitate the removal and replacement of parts by maintenance personnel. Here we only provide the exploded view and Parts List for the maximum configurations and maximum number of parts. Below is the system composition of the Video Laryngoscope:
Main body of Video Laryngoscope

Middle shell assembly

Handle assembly

Deep end assembly

Middle shell Rear shell
Display assembly Mainboard
Silicone button Camera Battery

Rotating shaft Rotating shaft shell Machined handle
Plastic handle Locking screw

Fig. 9-1
9-1

Deep end Side cover Camera holder

9.2 Main Body
9.2.1 Exploded View

Components

Figure 9-2 Exploded View of Main Body of CVL-1
9-2

9.2.2 Parts List

Components

Part No. Description

Remarks:

Middle shell of display screen of For installation of screen, mainboard, battery,

1

laryngoscope

etc.

2

Sealing plug

Providing certain waterproof and dustproof effect for the TYPE-C interface.

3

Oblong silicone ON/OFF button

For pushing the button.

Silicone button supporting seat of For supporting the silicone button and

4

laryngoscope

preventing silicone from coming off.

3″ touch screen lamination assembly of

5

1PC

laryngoscope

6

Light guide block of laryngoscope

1PC

7

Mainboard of laryngoscope

1PC

Electrostatic spring clip (small) of

8

1PC

laryngoscope

9

Rotating shaft (left) of laryngoscope For protecting the rotating shaft.

Upper rotating shaft of laryngoscope For connecting the handle with the upper

10

structure

shell and rotating the upper shell.

Electrostatic spring clip (big) of

11

2PCS

laryngoscope

12

Rotating shaft (right) of laryngoscope For protecting the rotating shaft.

13

Polymer battery

1PC

14

Battery label of laryngoscope

1PC

15

Rear cover of laryngoscope

1PC

EVA adhesive for rear shell and battery

16

For sticking the battery to the rear shell.

of laryngoscope

EVA adhesive for rear shell and battery

17

For sticking the battery to the rear shell.

of laryngoscope

Provide convenience for the doctor to hold

18

Long plastic handle of laryngoscope

the laryngoscope.

19

Machined handle of laryngoscope

1PC

Rotating shaft shell (big) of

20

For connection purpose.

laryngoscope

For locking the machined handle, plastic

21

Locking screw of laryngoscope

handle and rotating shaft shell of

laryngoscope-2.

9-3

Components

22

Electrostatic piece of laryngoscope

1PC

Rotating shaft shell (small) of

23

1PC

laryngoscope

24

Screw cap of laryngoscope – left

1PC

25

Screw cap of laryngoscope – right

1PC

26

Deep end of laryngoscope – neonate 1PC. This material varies with the model.

Camera holder of laryngoscope – For installation of camera and LED light.

27

neonate assembly

This material varies with the model.

28

Glass optical lens

1PC. This material varies with the model.

29

Camera module

For acquiring signals.

For increasing the brightness within the

30

High-brightness white LED light

visual field.

31

Side panel of laryngoscope – neonate 1PC. This material varies with the model.

32

Laryngoscope blade – neonate

1PC. This material varies with the model.

Table 9-1 Parts List for Main Body of CVL-1

9-4

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>