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FAQ

What are the common fault phenomena in the analysis of the composition and system maintenance of laparoscopic surgical instruments?

Common fault phenomena in the analysis of the composition and system maintenance of laparoscopic surgical instruments mainly include the following aspects:

Faults of the objective lens and the insertion part:

Broken objective lens glass, loose objective lens and wear.
Bending, dents and open welding of the insertion part.

Faults of the light guide hose:

Compression, sprain, breakage and pinhole phenomenon of the light guide hose.
Faults of the light guide light connector.

Faults of the display camera system:

Black screen phenomenon: The display, cold light source system power connector, camera cable connector fall off, poor contact and damage of the cold light source system bulb and other reasons will cause the display black screen phenomenon.
The monitor image is deeply distorted, and there are continuous wavy patterns on the monitor image when using a high-frequency electric knife.
No image display, blurred image, image interference, image color distortion, etc.

Faults of the cold light source system:

Abnormal cold light source system, such as insufficient image brightness.

Failure of negative pressure suction system:

Failure of suction tube, suction pipe and suction bottle, resulting in failure to suction resection and tissue fluid flowing out during surgery.

Failure of pneumoperitoneum machine:

Insufficient or no air pressure in the gas source leads to gas source pressure alarm, blockage or folding of high-pressure gas pipe and other problems.

These failure phenomena may be caused by many reasons, including equipment aging, improper operation, environmental factors, etc. For these failures, detailed inspection and repair are required, and preventive maintenance plans are formulated to reduce the occurrence rate of failures.

How to prevent and repair failures of objective lenses and insertion parts in laparoscopic surgical instruments?

Prevention and repair of failures of objective lenses and insertion parts in laparoscopic surgical instruments require comprehensive consideration of measures from multiple aspects. Here are some detailed suggestions:

Preoperative preparation:

Carefully check the integrity of the instrument to ensure that there are no damaged or loose parts.
Make sure all parts are assembled correctly to avoid failures caused by assembly errors.

Intraoperative use:

Avoid using violent manipulation of instruments, and handle them with care to reduce mechanical damage.
Proper disinfection and sterilization ensure that the instrument is sterile before use to prevent infection and further damage.

Postoperative maintenance:

After surgery, the instrument should be sorted out in time, checked for damaged or missing parts, and replaced as necessary.
For rusty instruments, rust removal and lubrication should be carried out in time to maintain the flexibility and service life of the instrument.

Regular maintenance:

It is recommended to use a special maintenance registration book, and the responsible nurse should conduct regular inspections of the laparoscopic instruments in the operating room every week to check the rust and lubrication of the instruments and equipment.
Regularly perform systematic inspections and maintenance of surgical laparoscopic instruments to ensure their normal function and reduce operating losses.

Emergency elimination:

If a fault occurs during surgery, the operation should be stopped immediately, the problem should be found and emergency elimination should be carried out.
For common faults, such as the falling of the end parts or coating of the instrument, the failure of the transmission mechanism, etc., the corresponding maintenance measures should be taken in time.

What are the common causes and solutions for light guide hose failures in laparoscopic surgery?

Common causes and solutions for light guide hose failure during laparoscopic surgery are as follows:

Common causes
Indentation: After the light guide hose is crushed, the internal CCD cable, remote control cable and light guide are damaged, resulting in functional failure.

Sprain: The light guide hose is excessively twisted during use, resulting in damage to the internal structure.

Break: The light guide hose may break when subjected to external force.

Aging and breakage: Long-term use and improper storage can cause aging and breakage of the light guide hose.

Solution
Replace the light guide hose: When the light guide hose is severely indented, sprained or broken, a new light guide hose needs to be replaced to ensure the normal operation of the equipment.

Repair hose assembly: For cases where the internal wiring is aged and damaged, the internal wiring and seals can be replaced, and the scope body can be resealed.

Precautions:
When using and storing endoscopes, be careful with the light guide hose to avoid squeezing, stretching, twisting and bending the hose.

Avoid collision of the light guide rod with other hard objects, and do not let the cover glass on the light guide rod collide with sharp objects.
During cleaning and maintenance, the light guide connector needs to be disassembled and cleaned to prevent the optical fiber from being contaminated.

What are the effective diagnostic and repair technologies for display camera system failures?

There are a variety of effective diagnostic and repair technologies for display camera system failures. Here are some common methods:

Adjust the display refresh rate: If the display screen has a sense of jitter, it is usually due to the display refresh rate being set too low. You can go to "Display Properties", click "Settings", select "Advanced", then select "Monitor", adjust the new frequency to 75Hz, and confirm the exit to solve the problem.

Voltage detection and disconnection method: used to detect the voltage at each key point in the circuit to determine the fault point. When there is a short circuit or excessive current in the circuit, the disconnection method can be used for troubleshooting.

Driver update: If the camera displays slowly, it may be due to insufficient network bandwidth or telephone line problems. In addition, you can also check the operating system, BIOS, USB interface, and the wrong driver installed, and follow the steps to reinstall the correct driver.

Use the intelligent video anomaly analysis server: The intelligent video anomaly analysis server (APG-IVS-8100) launched by Jiguang Security can flexibly configure detection algorithms according to different needs, and supports color cast detection, contrast detection, brightness anomaly detection, clarity detection, video snow detection, video freeze detection, video occlusion and other common camera fault detection.

Power supply check: Equipment failure caused by incorrect power supply is also common. It is necessary to check whether the power supply line or power supply voltage is correct, whether the power is sufficient, and whether there is a problem of excessive voltage reduction in the transmission line.

Common manifestations of cold light source system failure and how to evaluate its impact on surgery?

Cold light source system is an indispensable equipment in various laparoscopic surgeries and examinations, especially in the operating room, otolaryngology and gastroenterology. However, the cold light source system is very easy to be damaged during use. Common faults include power module problems, grating damage, bulb damage, etc. These faults may cause the lamp to heat up, affect the stability of the lamp itself, and thus affect normal surgery, and in severe cases may also cause errors in surgery.

When evaluating the impact of cold light source system failure on surgery, the following aspects need to be considered:

Failure type: First, determine the specific type of failure, such as whether it is a power module problem, grating damage or bulb damage.

Failure frequency and severity: The failure rate and life of cold light source systems of different models are different. For example, the Cle-10 cold light source has a reasonable design, strong functions, low failure rate and long life.

Readiness of spare equipment: Are there spare bulbs and other accessories so that they can be replaced in time when problems occur to avoid affecting the operation.

Maintenance resources and time: Are there sufficient maintenance resources and time to deal with the failure to ensure that the operation can proceed smoothly.

What are the preventive measures and maintenance tips for insufflator failure?

Insufflator plays a vital role in laparoscopic surgery, and its failure prevention and maintenance skills are crucial to ensure the smooth progress of the operation. The following are the preventive measures and maintenance tips for insufflator failure:

Preventive measures
Regular inspection:

A visual inspection should be performed before each use to ensure that the appearance of the main unit is intact and there is no obvious sign of external damage.
Ensure that the pressure reducing valve of the gas supply system is firmly connected to the gas supply tank, and the special connector is firmly connected to the insufflator.

Choose a high-quality carbon dioxide gas source:

Use a carbon dioxide gas source with a purity higher than 99.99% to prevent impurities from entering the system.

Keep the equipment clean:

Ensure the cleanliness of the gas outlet to prevent foreign matter from entering the system and causing malfunctions.

Set the gas pressure and flow rate reasonably:

Control the appropriate pneumoperitoneum pressure and gas flow rate to ensure the safety of the gas injection process.

Standardized management:

Establish and improve the management system of the pneumoperitoneum machine to ensure the normal operation of the equipment.

Maintenance skills
Appearance inspection and disassembly diagnosis:

For a faulty pneumoperitoneum machine, first perform an appearance inspection to confirm whether there is obvious damage or abnormality.

If no problem is found in the appearance inspection, it is necessary to perform a disassembly diagnosis to find the specific cause of the fault.

Handling common faults:

Pressure is too high: Check whether the switch of the puncture cannula is turned on and whether the gas injection hole of the puncture cannula is displaced or blocked.

Gas leakage: Check whether there is foreign matter entering the high-pressure valve of the gas path module, causing gas leakage; long-term use may cause the gasket to be damaged, and related parts need to be replaced.

Solenoid valve error: Replacing the solenoid valve can solve the fault caused by the solenoid valve error.

Internal liquid contamination: When liquid enters the insufflator, it is necessary to completely remove the liquid inside the machine and use the software to eliminate the fault code before resuming normal use.

Power supply problem:

Check whether the power switch is turned on, whether the fuse is intact, and whether the indoor power supply is normal.

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Company Name: Tonglu Wanhe Medical Instruments Co., Ltd.
Sales: Aiden