Devices that change size/shape via osmotic pressure
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United States of America Patent
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Feb 17, 2004
Grant Date -
Jun 27, 2002
app pub date -
Nov 8, 2001
filing date -
Nov 9, 2000
priority date (Note) -
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Abstract
Devices implantable in animal bodies, possibly configured as self-inflating spinal disc prostheses. Alternatively, non-implantable water-desalination and/or purification devices. The devices include specified types of water-absorbing solute encapsulated by non-porous, water-permeable polymer membranes having specified properties. Also, methods of using the devices in biomedical applications or water treatment.
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