Safety interdental brush

Abstract

A safety interdental brush is provided that prevents detachment of the brush wire during use, thereby protecting the user. The brush comprises a handle and a brush head fixed to one end of the handle. The brush head includes a wire core and multiple bristles evenly distributed on the outer surface of the wire core. The wire core is composed of at least one stainless steel wire and at least one non-metallic filament, helically wound together. Even if the stainless steel wire breaks due to fatigue, the filament remains intact and continues to connect the broken segments, preventing detachment of the brush head from the handle and ensuring user safety.

What is claimed is: 
     
         1 . A safety interdental brush comprising: a handle; and a brush head fixed to one end of the handle, the brush head including a wire core and a plurality of bristles evenly distributed along an outer surface of the wire core, wherein the wire core comprises at least one stainless steel wire and at least one non-metallic filament helically wound together. 
     
     
         2 . The safety interdental brush of  claim 1 , wherein the stainless steel wire comprises two wires. 
     
     
         3 . The safety interdental brush of  claim 1 , wherein the non-metallic filament is made of nylon. polyester fiber, polyethylene, bamboo charcoal fiber, Teflon®, or a material similar thereto. 
     
     
         4 . The safety interdental brush of  claim 2 , wherein the non-metallic filament is made of nylon. polyester fiber, polyethylene, bamboo charcoal fiber, Teflon®, or a material similar thereto. 
     
     
         5 . The safety interdental brush of  claim 1 , wherein the handle comprises a grip portion and a detachable connection portion at one end of the grip portion, and an end of the brush head is inserted and fixed in the connection portion.