公开(公告)号：US5225750A

公开(公告)日：1993-07-06

申请号：US588261

申请日：1990-09-26

申请人： Toshiro Higuchi ,  Ken-ichi Kudoh ,  Atsushi Mimatsu ,  Hisao Ueno

发明人： Toshiro Higuchi ,  Ken-ichi Kudoh ,  Atsushi Mimatsu ,  Hisao Ueno

IPC分类号： G02B21/32 ,  B23Q5/50 ,  B25J7/00 ,  C12M1/00 ,  C12M3/00 ,  C12N15/09 ,  C12N15/89 ,  G01N1/00

CPC分类号： C12N15/89 ,  B23Q5/50 ,  C12M35/00

摘要： A microinjection apparatus according to the invention includes a microsyringe having a plunger, a rotative moving member which rotates together with a shaft, and a micromovement device mounted on the rotative moving member and having a piezoelectric/electro-strictive element equipped with an inertial member. Applying an electric signal to the micromovement device produces a driving force which causes the rotative moving member to rotate by a minute amount. As a result, the plunger is moved a minute amount in the axial direction to move a liquid within the microsyringe. Also provided is a microinjection apparatus which includes a microsyringe having an internal rotary plate serving as a plunger and attached to a center shaft, a rotative moving member which rotates together with the center shaft, and a micromovement device mounted on the rotative moving member and having a piezoelectric/electro-strictive element equipped with an inertial member. Applying an electric signal to the micromovement device produces a driving force which causes the rotative moving member to rotate by a minute amount. As a result, the rotary plate serving as the plunger is rotated a minute amount to move a liquid within the microsyringe. Further, the microinjection apparatus is so adapted that a micromovement device having a piezoelectric/electrostrictive element equipped with an inertial member is driven to drive a rectilinear moving member directly in a linear direction, thereby operating a plunger.

摘要翻译： 根据本发明的显微注射装置包括具有柱塞的微注射器，与轴一起旋转的旋转移动构件，以及安装在旋转运动构件上并具有配备有惯性构件的压电/电致密元件的微运动装置。 将电信号施加到微动装置产生驱动力，其使旋转移动构件旋转微量。 结果，柱塞沿轴向移动微小量以移动微量注射器内的液体。 还提供一种显微注射装置，其包括具有用作柱塞的内部旋转板并附接到中心轴的微型注射器，与中心轴一起旋转的旋转移动构件和安装在旋转运动构件上的微动装置， 配备有惯性构件的压电/电致密元件。 将电信号施加到微动装置产生驱动力，其使旋转移动构件旋转微量。 结果，用作柱塞的旋转板旋转微量以移动微量注射器内的液体。 此外，显微注射装置适于使具有配备有惯性构件的压电/电致伸缩元件的微动装置被驱动以直线驱动直线移动构件，从而操作柱塞。