公开(公告)号：US20230233298A1

公开(公告)日：2023-07-27

申请号：US18121672

申请日：2023-03-15

Applicant: DENTSPLY SIRONA Inc.

Inventor： Thomas ERTL ,  Rolf DIEBOLDER

IPC: A61C17/16 ,  A61B90/70 ,  A61C5/40 ,  A61N5/06 ,  A61C17/02 ,  A61C1/00 ,  A61C5/50

CPC classification number: A61C17/16 ,  A61B90/70 ,  A61C5/40 ,  A61N5/0603 ,  A61C17/0202 ,  A61C1/0007 ,  A61C5/50 ,  A61N2005/0606 ,  A61C1/0046 ,  A61N5/067

Abstract: A method and an arrangement for the cleaning of a circumferentially closed canal using a light guide conducting a laser beam, with the entry of the laser beam into the light guide being interrupted when the free end of the light guide is outside of the canal and/or the movement of the light guide within the canal is monitored and if there is no movement or the movement is below a first threshold value then a signal is triggered and/or the laser radiation is turned off or its output is reduced. The turning off of the laser radiation or its reducing is controlled in dependency of at least one signal change and/or a second threshold and/or a signal change relative to the second threshold determined during at least one course of time starting before and including the entry of the light guide into the canal.

公开(公告)号：US20170274220A1

公开(公告)日：2017-09-28

申请号：US15465746

申请日：2017-03-22

Applicant: DENTSPLY SIRONA Inc.

Inventor： Thomas ERTL ,  Rolf DIEBOLDER

IPC: A61N5/06 ,  A61C5/50 ,  A61C1/00

CPC classification number: A61N5/0603 ,  A61B18/22 ,  A61B2018/0063 ,  A61C1/0046 ,  A61C5/50 ,  A61C5/55 ,  A61C17/02 ,  A61C19/003 ,  A61N5/062 ,  A61N5/0624 ,  A61N2005/0606 ,  A61N2005/063 ,  A61N2005/0659 ,  A61N2005/0662 ,  A61N2005/067

Abstract: The invention relates to a method and an arrangement for the cleaning of a circumferentially closed canal by means of a light guide conducting a laser beam. The entry of the laser beam into the light guide is interrupted when the free end of the light guide is outside of the canal and/or the movement of the light guide within the canal is monitored and that if there is no movement or the movement is below a threshold value then a signal is triggered and/or the laser radiation is turned off or its output is reduced.