Patent classifications
A
HUMAN NECESSITIES
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A61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
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A61M
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
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A61M25/0021
characterised by the form of the tubing
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A61M25/0023
by the form of the lumen, e.g. cross-section, variable diameter
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A61M25/0026
Multi-lumen catheters with stationary elements
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A61M2025/004
characterized by lumina being arranged circumferentially
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