Shanghai Fusion Tech Co., Ltd.

Tyco Electronics (shanghai) Co., Ltd.

Shanghai Operation Robot Co., Ltd.

Zhongwei Yu

Jianzhe Li

Hua Feng

Jinjing Zhang

Wangping Long

Xi Cao

Xiaoyu Wu

Huan Liu

Rui Yuan

Hongqiang Han

Wenyu Liu

Meng Li

Chenxi Wang

Youwei Pan

Daozhi Liu

Yikun Liu

Xingpeng Fan

Kundong Wang

Qingsheng Lu

Liangle Zhu

Guanlin Zhou

Xinpeng Fan

A bi-planar robotic arm device for vascular interventional surgery includes an operating table, a frame assembly, an outer arm assembly, and an inner arm assembly. The frame assembly includes a standing column, a sliding block, a sliding platform, a support, and a screw stepper motor. The standing column is arranged on the operating table. The support is arranged on the standing column. The sliding platform is arranged on the support. The sliding platform is connected to the sliding block. The sliding block is connected to the screw stepper motor and can slide along the sliding platform under the action of the screw stepper motor. The outer arm assembly is connected to the standing column. The inner arm assembly is connected to the outer arm assembly and the sliding block. The inner arm assembly and the outer arm assembly can move relative to each other.

Bi-planar robotic arm device for vascular interventional surgery

Some embodiments of the disclosure provide a flatness detection device. In an embodiment, the flatness detection device includes a back plate, an electromagnet, a cross beam, a probe, and a limiting frame. The limiting frame and the electromagnet are provided side by side on the back plate. The cross beam is located above the limiting frame and the electromagnet. The probe vertically penetrates the cross beam and the limiting frame. A spring is provided between the cross beam and the electromagnet. The spring is movable in a vertical direction by a guide, the movement being at least one of compression and extension.

Flatness detection device

A method for adjusting height of a 3d printer nozzle. In an embodiment, the method uses a fully wavy line as a reference line. The method includes the following steps. Determining an initial value of a height difference between the nozzle and a bottom of a probe by using a feeler gauge. Moving the nozzle vertically to adjust the height based on the initial value, obtaining a printing height of a first line, and printing the first line. Determining whether the first line is a fully wavy line. Adjusting the height of the nozzle for N times according to a preset step value, and printing N lines with corresponding heights. Determining whether the N lines have a fully wavy line. Calculating the height difference between the nozzle and the bottom of the probe by an equation. Adjusting the height of the nozzle.

Methods for adjusting height of a 3D printer nozzle

Extruder calibration methods and systems for a dual-extruder 3D printer are disclosed. In an embodiment, an extruder calibration method for a dual-extruder 3D printer having a left extruder and a right extruder includes the following steps: (1) building up a rectangular coordinate system on a heat bed of a 3D printer; (2) obtaining a first offset by calculating an offset between the left extruder and the right extruder in an X-axis direction; (3) obtaining a second offset by calculating an offset between the left extruder and the right extruder in a Y-axis direction; and (4) calibrating the left extruder and the right extruder according to the first offset and the second offset.

Extruder calibration method for dual-extruder 3D printer and system thereof

An electrical connector assembly is disclosed having a connector housing and a radiator securing member. The connector housing has at least one first protrusion formed with a locking tab receiving recess on a first stopping surface thereof. The radiator securing member has at least one first fastener engaged with the locking tab receiving recess of the first protrusion to connect the connector housing with the radiator securing member.

Electrical connector housing having a protrusion with a recess to engage a fastener

Growing community of inventors

Shanghai, China

Zhongwei Yu