公开(公告)号：WO2008121555A3

公开(公告)日：2008-11-27

申请号：PCT/US2008057421

申请日：2008-03-19

Applicant: INNOVATIVE IMPLANT TECHNOLOGY ,  GORDILS WALLIS ANTONIO JOSE ,  LITKE RONALD G JR ,  CALLAHAN ROBERT T JR ,  RIEMER EDWARD ,  HERNANDEZ ERNESTO

Inventor： GORDILS WALLIS ANTONIO JOSE ,  LITKE RONALD G JR ,  CALLAHAN ROBERT T JR ,  RIEMER EDWARD ,  HERNANDEZ ERNESTO

IPC: A61B17/16

CPC classification number: A61C8/0089 ,  A61B17/1688 ,  A61B17/1695 ,  A61C8/0092 ,  Y10T408/6771

Abstract: A device includes a tubular element, and a cutter spring-biased relative to the tubular element. In an unloaded configuration the cutter is displaced relative to the tubular element by a displacement distance, and when the cutter is in a loaded configuration the displacement distance is reduced. A first structure is longitudinally fixed relative to the cutter and rotationally engaged relative to the tubular element. A length of the first structure extends proximally in the unloaded configuration. A second structure is longitudinally displaceable relative to the first structure. In the loaded configuration, a driver engages and rotates both the first and second structures, and thus the tubular element and cutter together. Once the cutter breaks through the bone, the cutter spring-biased into the unloaded configuration, resulting in disengagement of the first structure from the driver to prevent rotation of either the tubular element or the cutter.

Abstract translation: 一种装置包括管状元件和相对于管状元件弹簧偏置的刀具。 在卸载构造中，切割器相对于管状元件移动位移距离，并且当切割器处于加载构造时，位移距离减小。 第一结构相对于切割器纵向固定并相对于管状元件旋转地接合。 第一结构的长度在卸载构型中向近侧延伸。 第二结构相对于第一结构可纵向移位。 在装载的构造中，驱动器接合并旋转第一和第二结构，并且因此将管状元件和切割器一起旋转。 一旦切割器穿过骨头，切割器弹簧偏压到卸载构造中，导致第一结构与驱动器分离，以防止管状元件或切割器旋转。

公开(公告)号：WO2008121555A2

公开(公告)日：2008-10-09

申请号：PCT/US2008/057421

申请日：2008-03-19

Applicant: INNOVATIVE IMPLANT TECHNOLOGY, LLC ,  GORDILS WALLIS, Antonio, Jose ,  LITKE, Ronald, G., Jr. ,  CALLAHAN, Robert, T., Jr. ,  RIEMER, Edward ,  HERNANDEZ, Ernesto

Inventor： GORDILS WALLIS, Antonio, Jose ,  LITKE, Ronald, G., Jr. ,  CALLAHAN, Robert, T., Jr. ,  RIEMER, Edward ,  HERNANDEZ, Ernesto

IPC: A61B17/00 ,  A61B17/58 ,  A61C13/08

CPC classification number: A61C8/0089 ,  A61B17/1688 ,  A61B17/1695 ,  A61C8/0092 ,  Y10T408/6771

Abstract: A device includes a tubular element, and a cutter spring-biased relative to the tubular element. In an unloaded configuration the cutter is displaced relative to the tubular element by a displacement distance, and when the cutter is in a loaded configuration the displacement distance is reduced. A first structure is longitudinally fixed relative to the cutter and rotationally engaged relative to the tubular element. A length of the first structure extends proximally in the unloaded configuration. A second structure is longitudinally displaceable relative to the first structure. In the loaded configuration, a driver engages and rotates both the first and second structures, and thus the tubular element and cutter together. Once the cutter breaks through the bone, the cutter spring-biased into the unloaded configuration, resulting in disengagement of the first structure from the driver to prevent rotation of either the tubular element or the cutter.

Abstract translation: 装置包括管状元件和相对于管状元件弹簧偏置的切割器。 在未加载的构造中，切割器相对于管状元件移位一个位移距离，并且当切割器处于加载构型时，位移距离减小。 第一结构相对于切割器纵向固定并相对于管状元件旋转地接合。 第一结构的长度在未加载构型中向近侧延伸。 第二结构相对于第一结构可纵向移位。 在加载构型中，驱动器接合第一和第二结构并且因此将管状元件和切割器二者接合并旋转在一起。 一旦切割器突破骨头，切割器被弹簧偏置成未加载构型，导致第一结构与驱动器分离，以防止管状元件或切割器的旋转。