Method of preventing suckback of dental handpiece by bypass injection of driving air and dental handpiece system having bypass injection structure
AssigneeDunamis Dental Co.,Ltd.
InventorYangsoo KIM
Life of this patent
Estimating the term…
Abstract
A method of preventing suckback of a dental handpiece and a dental handpiece system having a bypass injection structure are capable of effectively blocking a suckback phenomenon that occurs at the moment a rotating impeller stops. The method of preventing suckback includes bypassing air pumped from an air pump in a state where a flow path of an air supply pipe is blocked at the moment the impeller stops rotating and halts inside a head casing and injecting the air into the head casing through an air discharge pipe to block the suckback phenomenon.
Claims6
A method of preventing suckback of a dental handpiece in which each of an air supply pipe that supplies driving air pumped from an air pump and an air discharge pipe for discharging air to the outside is connected to a head casing, characterized by,
- at the moment an impeller stops rotating and halts inside the head casing of the dental handpiece, bypassing air pumped from the air pump in a state where a flow path of the air supply pipe is blocked so that air is not supplied to the inside of the head casing and injecting the air into the head casing through the air discharge pipe to block a suckback phenomenon.
Dependencies are inferred from the claim text.