What is meant by hot biopsy forceps?

Hot biopsy forceps refer to a type of biopsy forceps that have an electric current running through them to provide cauterization during tissue sampling. 

Some key features:

- They have an insulated shaft with just the cup/jaw tip conducting electricity.

- Connected to an electrosurgical generator that provides monopolar or bipolar coagulative current.

- Heat generated at the forceps tip cauterizes blood vessels and seals them during the biopsy.

- This helps reduce bleeding from the biopsy site. Useful in highly vascular tissues.

- The heat also "cooks" the biopsy sample right inside the forceps cup. This changes the tissue architecture less than using cold forceps.

- Allows better preservation of tissue morphology for histopathological examination. 

- The electric current can be activated as needed with footswitch control. 

- Hot biopsy forceps are powered by standard electrosurgery units used in the operating room.

- Useful in procedures like liver biopsy, lung biopsy, and kidney biopsy where bleeding risks are high.

- Special non-stick coatings prevent tissue from sticking to the hot jaws.

- Hot biopsy forceps require careful handling to avoid inadvertent burns. Insulated tips provide safety. 

So in summary, hot biopsy forceps integrate electrosurgery with tissue sampling to reduce biopsy bleeding and artifact.