Patent ID: 9216195
Filing Date: 2015-12-22
Classification: A61B,A61K,A61L

Abstract:
1. A bone cement composition, comprising: a liquid component and a non-liquid component that, upon mixing, provide a polymerizable bone cement composition, the liquid component comprising at least one monomer and the non-liquid component comprising a total particle population of polymer particles comprising a first volume of polymer particles, a second volume of polymer particles and an initiator; wherein the non-liquid component is configured to provide controlled differential exposure of the initiator to the liquid monomer so as to control the viscosity of the bone cement composition; wherein the first volume of polymer particles has a mean diameter less than 100 μm and comprises the initiator in a first wt. % of the total weight of the first volume of polymer particles; wherein the second volume of polymer particles has a mean diameter greater than 100 μm and comprises the initiator in a second wt. % different from the first wt. % of the total weight of the second volume of polymer particles; wherein a ratio of the total weight of the second volume of polymer particles to a total weight of the total particle population is between about 40% and about 50%; and wherein the total concentration of the initiator within the bone cement composition is within the range between 0.3-0.8 wt. % on the basis of the total weight of the non-liquid component.