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US 9,308,297 B2Granted
Porous biocompatible polymer material and methods
AssigneeDePuy Synthes Products, Inc.
InventorsSean Hamilton Kerr, Ali Recber, Thomas Pepe, Dominique Messerli, Lawton Laurence, Ryan Walsh, Thomas Kueenzi, Brandon Randall
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Abstract
Embodiments described include devices and methods for forming a porous polymer material. Devices disclosed and formed using the methods described a spacer for spinal fusion, craniomaxillofacial (CMF) structures, and other structures for tissue implants.
Claims21
A method of forming a porous polymer material, comprising:
- forming a mixture of polymer granules and ceramic coating powder,
- wherein the polymer granules comprise polyaryletherketone (PAEK) polymers;
- wherein the ceramic coating powder comprises ceramic particles that coat the polymer granules;
- wherein the ceramic particles are smaller than the polymer granules;
- wherein the ceramic particles do not melt at a melting temperature of the polymer granules;
- heating the mixture to a temperature above the melting temperature of the polymer granules;
- controlling flow of molten polymer as a result of the ceramic coating powder substantially preserving interstitial spaces in the mixture;
- and
- cooling the mixture to form a porous body having bonds at contact points of the coated polymer granules.
6 more elements
Dependencies are inferred from the claim text.