Medical hollow drills are mainly used for grinding bones. They have a strong and accurate structure, low consumption, are designed based on ergonomics, and are easy to operate. Its standard name is multi blade steel plate drill bit, which adopts the form of multi blade annular cutting. The drill bit only cuts the outer diameter annular part of the hole and does not cut the middle part, greatly improving the perforation efficiency. In addition, by combining with the magnet drill bit, it can carry out the piercing operation at any time on the site. Compared with the ordinary Fried Dough Twists drill, it is more efficient and easier to cut. The technical parameters of the electric drill are as follows:

1. Drill range: ? 22- ? 32 millimeters; 2. Power: 1.0 kW; 3. Spindle speed: 300r/min; 4. The installation time is 20-30/s, and the uninstallation time is 15-20/s; 5. The drilling time is 1.5-2 minutes; 6. The travel distance is above 40mm; 7. Aperture deviation: ± 0.5; 8. Aperture roughness: above 12.5; 9. Overall weight of the unit: 15KG.

Orthopedic surgical instruments contain a large number of hollow tools, including hollow drills, sleeves, arthroscopic instruments, etc. It is difficult to clean hollow instruments, including those with bones. Can they be reused after routine disinfection and sterilization?

The commonly used surgical instruments in the department, such as medical hollow drills, sleeves, arthroscopic instruments, etc., are difficult to clean, making it difficult to determine whether they are clean and prone to residual bone debris. There is currently no consensus on whether the residual bone fragments in the above-mentioned hollow instruments can be effectively sterilized by conventional disinfection and sterilization, and whether they can continue to be used in future surgeries. After routine cleaning and disinfection, there may be residual biological debris in hollow surgical instruments. The remaining debris after cleaning is considered sterile, but this hypothesis has no experimental basis. The purpose of this study is to determine the sterility of residual biological debris found in hollow surgical instruments after high-pressure sterilization.

The above is an introduction to the technical parameters and cleaning standards of medical hollow drills. Thank you for reading.