公开(公告)号：US20220160465A1

公开(公告)日：2022-05-26

申请号：US17535177

申请日：2021-11-24

Applicant: J. MORITA MFG. CORP.

Inventor： Tomoaki UEDA ,  Koichiro ADACHI ,  Kyohei KATO ,  Seiichiro YAMASHITA ,  Kazunari MATOBA

IPC: A61C5/40

Abstract: A dental treatment apparatus includes a holder, a high-frequency signal generation circuit, a detector, and a control circuit. The holder holds an electrode placed at a dental treatment site. A power supply energizes the electrode with a high-frequency current. A detector detects a current value which energizes the electrode. A control circuit causes, based on the current value detected by detector, the power supply to control a current value of the high-frequency current which energizes the electrode.

公开(公告)号：US20220160417A1

公开(公告)日：2022-05-26

申请号：US17535251

申请日：2021-11-24

Applicant: J. MORITA MFG. CORP.

Inventor： Tomoaki UEDA ,  Kyohei KATO ,  Kazunari MATOBA

IPC: A61B18/14 ,  A61B18/12 ,  A61C5/42

Abstract: A dental treatment apparatus is a dental treatment apparatus that energizes a dental treatment site such as a root canal with a high-frequency current. Included are a holder that holds an electrode placed at the dental treatment site, a power supply that energizes the electrode with the high-frequency current, and control circuitry that causes, during the energization operation, the power supply to provide stop period where the energization of the electrode with the high-frequency current is stopped between single energization period and next single energization period.

公开(公告)号：US20220160487A1

公开(公告)日：2022-05-26

申请号：US17534715

申请日：2021-11-24

Applicant: J. MORITA MFG. CORP.

Inventor： Tomoaki UEDA ,  Koichiro ADACHI ,  Kazunari MATOBA

IPC: A61C19/04 ,  A61C5/44 ,  A61B18/12 ,  A61B18/14

Abstract: A dental treatment apparatus includes a holder, a power supply, root canal length measurement circuitry, and control circuitry. The holder holds an electrode placed in a root canal. The power supply energizes file with a high-frequency current. The root canal length measurement circuitry electrically measures a position of a distal end of electrode in the root canal. The control circuitry causes, in accordance with information on the position of the distal end of the electrode measured by root canal length measurement circuitry, the power supply to control a current value of the high-frequency current which energizes the electrode.

公开(公告)号：US20230173268A1

公开(公告)日：2023-06-08

申请号：US18052100

申请日：2022-11-02

Applicant: J. MORITA MFG. CORP. ,  National University Corporation Hokkaido University

Inventor： Tsutomu SUGAYA ,  Keita YAMADA ,  Shingo BAN ,  Kei DOKAI ,  Tomoaki UEDA ,  Shunsuke YAMAGUCHI ,  Kazunari MATOBA

IPC: A61N1/32 ,  A61N1/06 ,  A61N1/05 ,  A61C5/40

CPC classification number: A61N1/326 ,  A61N1/06 ,  A61N1/0548 ,  A61C5/40 ,  A61N2001/083

Abstract: A treatment device that shortens the time period until healing is determined even when a bone defect or a root apex lesion is generated in an apical area. The treatment device includes a file holder, a high-frequency signal generating circuit, and a control circuit. The file holder holds a file to be located in the site to be treated. The high-frequency signal generating circuit passes a high frequency current through the file. The control circuit controls a frequency of the high frequency current to be passed through the file from the high-frequency signal generating circuit. The control circuit controls the frequency of the high frequency current to be passed through the file within a range of 1.001 MHz to 11.700 MHz.