Mixing capsule for dental material, and method for producing dental material

Abstract

The invention relates to a capsule for producing a composition, particularly for dental care, comprising an enclosure provided with at least two compartments, the number of compartments corresponding to the number of components to be mixed, and at least one wall for isolating the components, said wall being provided to isolate the components from each other in storage mode, and to allow fluidic communication between the compartments in mixing mode, said capsule also comprising a shank for removable attachment to a hand-held part.

1 . A capsule for preparing dental or surgical material obtained by mixing components prior to use, comprising:
 a chamber provided with a plurality of compartments, which are arranged concentrically and are provided in a number corresponding to a number of said components to be mixed,   at least one isolating wall for isolating the components from each other during storage and for permitting fluidic communication between the compartments during mixing,   a shank, one end of which permits a removable attachment to a handpiece.   
     
     
         2 . The capsule as claimed in  claim 1 , wherein the isolating wall between the compartments comprises a cover configured to cover a surface occupied by all of the compartments. 
     
     
         3 . The capsule as claimed in  claim 2 , wherein the isolating wall has a lower face bearing against a shoulder between the compartments. 
     
     
         4 . The capsule as claimed in  claim 1 , wherein the isolating wall further comprises a plurality of mixer arms, which are arranged to plunge into a mixture to be mixed when the capsule is in mixing mode. 
     
     
         5 . The capsule as claimed in  claim 4 , wherein the isolating wall is joined to the shank in such a way as to be able to be turned by said shank in order to mix the mixture that is to be mixed. 
     
     
         6 . The capsule as claimed in  claim 5 , wherein the isolating wall is also arranged in such a way as to be able to be lifted by said drive rod in order to mix the mixture that is to be mixed. 
     
     
         7 . The capsule as claimed in  claim 1 , wherein the compartments are arranged side by side, the isolating wall between the components further comprising a removable, tearable or deformable membrane. 
     
     
         8 . The capsule as claimed in  claim 1 , wherein the shank is made of injected polymer. 
     
     
         9 . The capsule as claimed in  claim 2 , wherein the cover and the chamber are made of injected SBS. 
     
     
         10 . The capsule as claimed in  claim 2 , further comprising a bayonet arranged to position the cover in two positions, chosen from:
 a closed position; and   a position in which the cover is withdrawn.   
     
     
         11 . The capsule as claimed in  claim 1 , comprising components intended for the preparation of dental cement. 
     
     
         12 . The capsule as claimed in  claim 1 , wherein the shank is molded. 
     
     
         13 . The capsule as claimed in  claim 1 , wherein the shank is machined. 
     
     
         14 . The capsule as claimed in  claim 1 , wherein the shank is made by 3D printing. 
     
     
         15 . The capsule as claimed in  claim 1 , wherein the shank is removably attachable to the handpiece by a connection in accordance with the standard ISO 1797. 
     
     
         16 . A method for preparing dental or surgical material obtained by mixing components prior to use, said method comprising:
 fixing a capsule as claimed in  claim 1  to a handpiece;   driving the shank of said capsule by means of said handpiece;   opening the cover of said capsule in order to access said material that has thus been mixed.   
     
     
         17 . The method as claimed in  claim 16 , further comprising:
 activating the rotary mixing capsule; and introducing a perforating needle in the capsule after said activating.   
     
     
         18 . The method as claimed in  claim 17 , further comprising extruding the mixed material from the capsule with a forceps. 
     
     
         19 . The method as claimed in  claim 17 , wherein the needle has a length that is compatible with use in a patient mouth.