Method of bone cement preparation
AssigneeAO Research Institute Davos
InventorSlobodan Tepic
Life of this patent
Estimating the term…
Abstract
A method of bone cement preparation from a polymeric powder and a liquid component including a polymerisable monomer or comonomer by the action of a catalytic system. Particles of the powder are packed in a powder container having an inlet and an outlet port, while the liquid component is held in a liquid container. The liquid container is connected to te inlet port and a vacuum source is connected to the outlet port. A voided space between the powder particles is flooded by the liquid component that flows form the inlet port toward the outlet port under the influence of the vacuum source.
Claims19
A method of bone cement preparation from a polymeric powder and a liquid component, comprising a polymerisable monomer or comonomer, by action of a catalytic system, whereby particles of said powder component are packed in a powder container (7;35) with an inlet port (8) and an outlet port (9) and the liquid component is held in a liquid container (11), comprising the steps of:
- A) completely filling said powder container (7;35) with said polymeric powder;
- B) connecting said liquid container (11) to said inlet port (8);
- C) connecting a vacuum source (10) to said outlet port (9);
- and,
- D) completely flooding a void space between said particles of said powder component with said liquid component, said liquid component flowing from said inlet port (8) toward said outlet port (9) by the action of the vacuum source (10).
A method of bone cement preparation from a polymeric powder and a liquid component, comprising a polymerisable monomer or comonomer, by action of a catalytic system, whereby particles of said powder component are packed in a powder container (7;35) with an inlet port (8) and an outlet port (9) and the liquid component is held in a liquid container (11), comprising the steps of:
- A) packing said powder in said powder container (7;35) to a fractional porosity of 0.30 to 0.43;
- B) connecting the liquid container (11) to said inlet port (8);
- C) connecting a vacuum source (10) to said outlet port (9);
- and,
- D) flooding the void space between said particles of said powder component by said liquid component, said liquid component flowing from said inlet port (8) toward said outlet port (9) by the action of the vacuum source (10).
Dependencies are inferred from the claim text.