| 发明名称 |
MATRIX BAND RETAINER |
| 摘要 |
A denial matrix band retainer is provided with a retractor, main body portion and a bias mechanism. The retractor includes a proximal end and a distal end, with a band engagement portion at the proximal end. The main body portion having a proximal end and a distal end, with a head portion located at the proximal end. The bias mechanism coupling the retractor to the main body portion, the bias mechanism having a static position and a fully active position, wherein in the static position the head portion is spaced apart from the band engagement portion a first distance, and in the fully active position the head portion is spaced apart from the band engagement portion a second distance which is greater than the first distance, the bias mechanism including an actuator for urging the bias mechanism towards the fully active position. |
| 申请公布号 |
US2014302456(A1) |
申请公布日期 |
2014.10.09 |
| 申请号 |
US201214355937 |
申请日期 |
2012.11.02 |
| 申请人 |
DENTSPLY INTERNATIONAL INC. |
发明人 |
McDonald Simon P. |
| 分类号 |
A61C5/12 |
主分类号 |
A61C5/12 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A dental matrix band retainer comprising:
a retractor having a proximal end and a distal end, with a band engagement portion at the proximal end; a main body portion having a proximal end and a distal end, with a head portion located at the proximal end; and a bias mechanism coupling the retractor to the main body portion, the bias mechanism having a static position and a fully active position, wherein in the static position the head portion is spaced apart from the band engagement portion a first distance, and in the fully active position the head portion is spaced apart from the band engagement portion a second distance which is greater than the first distance, the bias mechanism including an actuator for urging the bias mechanism from the static position towards the fully active position. |
| 地址 |
York PA US |
