Bone cement composistion containing microencapsulated radiopacif

Details Bone cement composistion containing microencapsulated radiopacif Bone cement composistion containing microencapsulated radiopacif

1995-06-06

1998-08-18

Merriam, Andrew E. C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523116, 42840224, 424419, 524423, 524430, 524560, 524534, B32B 900, B32B 516, A61K 950, A61L 2500

Patent

active

057959226

ABSTRACT:
A radiopaque bone cement used to repair bone or other hard tissues is provided. The bone cement is made from combining a composition containing an acrylic powder and a radiopacifier with a corresponding liquid monomer. Prior to being added to the composition, the radiopacifier is microencapsulated with a bone cement compatible material. When combined with the liquid monomer, the bone cement compatible material dissolves releasing the radiopacifier particles into a bone cement matrix. By being microencapsulated, the radiopacifier is prevented from agglomerating in the cement. Instead, the radiopacifier particles become dispersed throughout the bone cement matrix which not only creates a radiopaque cement but also increases the fatigue life of the cement.

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