What does “TC instruments” mean?

TC stands for tungsten carbide – an extremely hard material that is usually used as an insert in the gripping surfaces or cutting edges of instruments (e.g., scissors, needle holders).

Advantages of TC instruments

1. Greater hardness & longer lifespan

• TC is significantly harder than stainless steel
• Instruments stay sharp and effective much longer
• Less frequent resharpening required

2. Better cutting performance

• Especially for scissors: more precise, cleaner cuts
• Less tissue trauma due to smooth cutting edges

3. Secure grip (e.g., needle holders)

• TC inserts hold needles firmly and securely
• Reduced risk of slipping or damaging the needle

4. Cost-effectiveness in the long term

• Higher initial cost, but:
• → longer service life
• → lower maintenance costs

5. High durability

• More resistant to wear
• Better resistance to sterilization processes

Typical TC instruments

• Needle holders (e.g., Mayo-Hegar TC)
• Surgical scissors (Metzenbaum TC, Mayo TC)
• Forceps with TC tips

!!! Possible disadvantages

• Higher purchase cost
• TC can be more brittle → sensitive to impact if mishandled