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公开(公告)号：US20100047740A1
公开(公告)日：2010-02-25
申请号：US12196903
申请日：2008-08-22
申请人： David Fyffe
发明人： David Fyffe
IPC分类号： A61C3/16
CPC分类号： A61C3/16
摘要： A dental crown remover has forceps with opposing beaks. Each of the beaks has a flattened base and a notch located at the base. The faces of the notch form an angle of about 90 degrees to one another, and the lower face of the notch intersects the base at about a 50-degree angle. The notch is intersected by a longitudinal cavity having a width less than that of the beak. This structure defines two sharp points where the longitudinal cavity intersects the base of the beak and the lower face, and two stops where the longitudinal cavity intersects the upper face of the notch. When the beaks of the forceps are moved toward closure, the points of each beak are capable of penetrating and holding a crown, providing stable support at least at four points, which support allows twisting and rocking motion to be applied to break the tooth-to-cement bond holding the crown in place.
摘要翻译： 牙冠去除剂具有相对的喙的钳子。 每个喙具有平坦的基部和位于基部的凹口。 凹口的面形成大约90度的角度，并且凹口的下表面以大约50度的角度与基部相交。 该切口由宽度小于喙的宽度的纵向腔相交。 这种结构定义了两个尖点，其中纵向腔与喙的底部和下表面相交，以及两个止动件，其中纵向腔与凹口的上表面相交。 当镊子的喙移动到关闭时，每个喙的点能够穿透并保持冠部，至少在四个点处提供稳定的支撑，这支撑允许施加扭转和摇摆运动以将牙齿断开 债券持有冠。
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公开(公告)号：US5421721A
公开(公告)日：1995-06-06
申请号：US868623
申请日：1992-04-14
申请人： David Fyffe
发明人： David Fyffe
摘要： The invention prescribes forceps for dental use, one embodiment of which exhibits an enclosure for trapping extracted teeth and dental appliances so as to prevent them, when slipping from the grasp of the forceps' beaks, from falling into the mouth or throat of a patient. A second embodiment includes an abutment member lying inward from the beaks against which abutment member an extracted tooth or dental appliance is lodged as occlusions of the beaks forces the tooth or appliance inward from the beak tips.
摘要翻译： 本发明规定了用于牙科用途的镊子，其一个实施例具有用于捕获拔出的牙齿和牙齿器具的外壳，以便当从镊子的喙的抓握中滑落时，防止它们掉入患者的口腔或喉部。 第二实施例包括从喙部向内放置的抵靠构件，抵靠构件提取的牙齿或牙科器具被卡住，因为喙的阻塞迫使牙齿或器具从喙尖向内。
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