Functional classification of laparoscopic instruments
With the development of minimally invasive surgery, there are more and more varieties of laparoscopic instruments, currently there are dozens of laparoscopic surgery, including almost all traditional surgery, the function of laparoscopic instruments is also becoming more and more comprehensive, and each piece of instrument has a special purpose.
 The basic functions can be divided into the following categories.
1. Cutting (electric hook, ultrasonic knife, high-frequency electric knife)
2. Hemostasis (electrocoagulation rod, bipolar electrocoagulation)
3. Holding (luminal non-invasive, luminal off forceps, large grasping forceps)
4. Dilation or probing (urethral probe)
5. Air delivery (pneumoperitoneum tube, pneumoperitoneum needle)
6. Suture or ligation (needle holder, closure device)
7. Observation (various types of optical eyepieces, choledochoscope)
8. Blocking blood vessels (titanium clamps, lock clamps, absorbable clamps)
9. Puncture (Tricor, etc.)
In the face of so many complex and unique instruments, CSSD not only ensures the quality of cleaning, but also how to carry out the functional examination of instruments is also a challenge.

Functional check of laparoscopic instruments
Necessity of Functional Inspection
1. The standards for handling medical products necessitate inspection and testing of the necessary constructional and functional features of the product. Instruments can only be used in surgery if they can function ideally. --German medical product user regulations
2、Medical device users should establish a medical device maintenance and repair management system. Regular inspection, testing, calibration, maintenance, maintenance of medical devices, should be in accordance with the requirements of the product specification for inspection, testing, calibration, maintenance, maintenance and records, timely analysis, assessment to ensure that the medical device is in good condition. --Article 15 of the Measures for the Supervision and Administration of the Quality of Medical Device Use

Laparoscopic function check operating principles
 Operating principles to be followed before functional examination
1、Keep the operation table clean and tidy
2、Choose the appropriate inspection method according to different instruments.
3、Check each instrument one by one in an appropriate way.
4、The qualified instruments should be arranged in an orderly manner to facilitate the assembly work.
5、If the equipment is found to function poorly, it should be contacted with the equipment maintenance department in time, and be referred to qualified manufacturers as appropriate.

Inspection of instruments with power supply
For laparoscopic instruments, there is a class of instruments that we must pay attention to and pay attention to that is with power handle instruments, the inspection of such instruments should start from the appearance of the inspection:
Check the surface of the device insulator without cuts and pinholes and cracks, power cord without breakage, aging insulation failure, etc.; the insulator must be tightly against the metal ring, there should not be any gap, and then hold the insulator and try to slide it. If the insulator slides, it needs to be repaired.

For the working end of the clamping and sharpness test, the pipe cavity type also need to carry out the fluency test, the appearance of the inspection qualified before using the insulation resistance tester for insulation performance testing.

Insulation tester use precautions:
Insulation resistance tester can detect the insulator on the microporous, in the assembly before the test must be carried out; this instrument for the high resistance meter, the use of environmental humidity shall not be greater than 80%, otherwise the measurement is inaccurate, the detected object for the conventional charged body must be disconnected from the power supply and then measured.