Gall bladder Trochar and Trephines

Ochsner Gallbladder Trochar (Fig. 8.42)

Is used for entering a distended gallbladder so as to drain its contents.

Trephines

Trephines in use are:

•   Rowbotham (Fig. 8.43)

•   Buchanan (Fig. 8.44)

•   Hudson burr (Fig. 8.45)

•   Hudson brace (Fig. 8.46)

     Trephines are used to create openings into the cranium for access to the structures within. The burr holes can be used for obtaining biopsy material or for draining a collection of blood or pus.

            Burr holes can also be enlarged or intervening bone between burr holes removed to provide greater access to the brain.

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