Patent classifications
A
HUMAN NECESSITIES
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A61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
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A61B
DIAGNOSIS; SURGERY; IDENTIFICATION
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17/00
Surgical instruments, devices or methods
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A61B17/34
Trocars; Puncturing needles
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A61B17/3462
with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals
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A61B2017/3466
for simultaneous sealing of multiple instruments
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