Cover and holdback element for permitting disturbance-free dental operations to be performed on teeth

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专利权人:

Domonkos Horvath

发明人:

Domonkos Horvath

申请号：

US11186528

公开号：

US08459993B2

申请日:

2005.07.21

申请国别(地区):

US

年份:

2013

代理人:

摘要：

A cover and holdback element for permitting disturbance-free dental operations to be performed on a patient's teeth includes an expandable sheet operable to cover at least a portion of the mouth volume of a patient and an intra-oral spanner and an extra-oral spanner. The sheet is turned around the at least one of the spanners and is displaceable relative thereto.

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中国工程科技知识中心

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