arthroscope

n. thin flexible endoscope inserted into a joint space for examining the inside of it and for performing diagnostic and therapeutic procedures within the joint

Arthroscopy (also called arthroscopic surgery) is a minimally invasive surgical procedure in which an examination and sometimes treatment of damage of the interior of a joint is performed using an arthroscope, a type of endoscope that is inserted into the joint through a small incision. Arthroscopic procedures can be performed either to evaluate or to treat many orthopaedic conditions including torn floating cartilage, torn surface cartilage, ACL reconstruction, and trimming damaged cartilage.
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Arthroscope /ar·thro·scope/ an endoscope for examining the interior of a joint and for performing diagnostic and therapeutic procedures within the [more]Arthroscope - Community and Resources

Noun
1. a type of endoscope that is inserted into a joint for visual examination
(hypernym) endoscope

noun
instrument which is inserted into the cavity of a joint to inspect it