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2. Suction cup - Wikipedia

   en.wikipedia.org/wiki/Suction_cup

   The working face of the suction cup is made of elastic, flexible material and has a curved surface. [3] When the center of the suction cup is pressed against a flat, non-porous surface, the volume of the space between the suction cup and the flat surface is reduced, which causes the air or water between the cup and the surface to be expelled past the rim of the circular cup.

3. Self-sealing suction cup - Wikipedia

   en.wikipedia.org/wiki/Self-sealing_suction_cup

   The self-sealing suction cup is a suction cup that exerts a suction force only when it is in physical contact with an object. Unlike most other suction cups, it does not exert any suction force when it is not in contact with an object. [1] Its grasping ability is achieved entirely through passive means without the use of sensors, valves, or ...

4. List of instruments used in otorhinolaryngology, head and ...

   en.wikipedia.org/wiki/List_of_instruments_used...

   Head mounted lights with head band: to focus light into the cavity under inspection Chiron lamp: source of light Katz extractor: to remove nasal foreign body Bull's eye lamp: source of light; exiting lens is convex and produces a divergent beam of light: Speculum: to dilate orifices and to see inside •Thudichum's nasal speculum

5. Cup holder - Wikipedia

   en.wikipedia.org/wiki/Cup_holder

   This cup holder has slots to accommodate the cups handle and has a suction cup to attach the holder to a smooth flat surface, so that it is held securely. New Zealand patent number 565067. This is a completely free-standing desktop coffee cup holder that can sit on any flat surface this was invented by Digby Green, George Green and Aly Matthews.

6. Ignacio Barraquer - Wikipedia

   en.wikipedia.org/wiki/Ignacio_Barraquer

   He invented many surgical instruments and procedures involving cataract surgery, many of which are named after him; some among them the suction cup that extracts cataracts, and the fine-tunable vacuum-producing apparatus which allowed the removal of the crystalline lens.

7. Microsuction tape - Wikipedia

   en.wikipedia.org/wiki/Microsuction_tape

   For micro-suction tape, the necessary force is proportional to the attachment surface area. Compared to a suction cup, the force is smaller for the tape (assuming the same attachment surface area) because only a portion of the surface area contains craters that form vacuum chambers, and the maximal force factor is determined by this portion.