Intricate tips of endoscope capturing experimental subject pumped with oxygen (9)

I believe the answer is:

elaborate

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'intricate' is the definition.
(synonyms)

I don't understand the remainder of the clue.

(Other definitions for elaborate that I've seen before include "Complicated, with many parts or details" , "With many parts or details, maybe a pattern" , "Ostentatious, possibly" , "Complicated - complex" , "Complicate" .)

I've seen this clue in The Hindu.

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