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AssigneeMEDICAL INVENTI Spólka Akcyjna
InventorsJózef KUCZMASZEWSKI, Kamil ANASIEWICZ, Maciej WLODARCZYK, Tomasz WARDA, Anna BELCARZ, Grazyna GINALSKA
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The proposed solution solves a problem of designing a machine for producing molded composite parts that are homogeneously structured and the problem of finding a method for producing composite for implants. The essence of the design of the machine consists in that it has a portioning assembly, whereby above a mold form unit (14) there is a guiding unit (11) located opposite a dosing unit (6) and above the aforementioned guiding unit (11) there is a pressing assembly (20) slidingly mounted on a vertical frame (19) and which is equipped with at least one piston rod (25) with a rammer (27) at its end. A preliminary molding is being performed by thoroughly filling a preform trough and then the matter is being pushed out of the preform trough in portions and then each portion is rammed separately until consistency containing less than 15% air is achieved.
A machine for molding, especially for manufacturing molded semi-finished products for producing composite for implants, having a pressing unit and a mold form unit, characterized in that it has a portioning assembly comprising a dosing unit (6) and a preliminary molding unit (8), whereby above the mold form unit (14) there is a guiding unit (11) situated opposite the dosing unit (6) and above the aforementioned guiding unit (11) there is a pressing assembly (20) slidingly mounted on a vertical frame (19) and equipped with at least one piston rod (25) with a rammer (27) at its end, whereby the piston rod (25) is placed in a casing (24) into which pneumatic pipes (23) are connected and, moreover, the portioning assembly is mounted slidingly in parallel plane relative to the guiding unit (11), and whereby all the drives of operating units are connected with a control unit (31).
A method of producing composite based on calcium phosphate ceramics mixed with curdlan, characterized in that into a water suspension containing 76-175 grams of β-1,3-glucan (hereinafter referred to as curdlan) per one liter of water calcium phosphate ceramics in the form of porous granules weighing 300-800 g in total, favorably from 415 to 800 g, are added and mixed until an optimum homogeneity is achieved and then preliminary molding takes place whereby a preform trough is thoroughly filled with the matter and after that the matter is pushed into a mold where each portion of the matter is rammed separately until consistency containing less than 15% air is achieved and, after accurate ramming, the matter together with the mold is being kept for 5-120 minutes in temperatures between 80-100° C., and after that the finished product is removed from the mold.
Dependencies are inferred from the claim text.