Patents by Inventor Zhengchen DAI

Zhengchen DAI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10710236
    Abstract: A flexible continuum structure capable of realizing a posture feedback is provided. The flexible continuum structure can comprise a flexible continuum structure body and a posture feedback mechanism. The flexible continuum structure body can comprise a distal structural body, a proximal structural body and a middle connecting body. The distal structural body can comprise distal spacing disks, a distal fixation disk and distal structural backbones. The proximal structural body can comprise proximal spacing disks, a proximal fixation disk and proximal structural backbones. The middle connecting body can comprise a proximal guide channel fixing plate, a distal guide channel fixing plate and a structural backbone guide channel. One end of the structural backbone is connected to the proximal fixation disk, and the other end passes through the proximal spacing disks, the structural backbone guide channel and the distal spacing disks and is then securely connected to the distal fixation disk.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: July 14, 2020
    Assignee: Beijing Surgerii Technology Co., Ltd.
    Inventors: Kai Xu, Jiangran Zhao, Zhengchen Dai, Huan Liu, Zhixiong Yang
  • Publication number: 20190254648
    Abstract: Disclosed is a flexible surgical instrument system comprising a flexible surgical instrument and a driving unit. The flexible surgical instrument can comprise a flexible continuous body structure composed of a distal structural body, a proximal structural body and a middle connecting body. The distal structural body can comprise a distal segment, comprising a distal spacing disk, a distal fixation disk and structural backbones. The proximal structural body can comprise a proximal segment comprising a proximal spacing disk, a proximal fixation disk and structural backbones. The middle connecting body can comprise channel fixing plates and a structural backbone guide channel. The driving unit can comprise a driving unit fixing plate. Linear motion mechanisms are provided between the driving unit fixing plate and the channel fixing plate near the proximal structural body, an output end of each of the linear motion mechanisms is securely connected to a first driving backbone.
    Type: Application
    Filed: February 28, 2019
    Publication date: August 22, 2019
    Inventors: Kai Xu, Tianlai Dong, Zhengchen Dai, Shu'an Zhang, Jiangran Zhao, Huan Liu
  • Publication number: 20190247032
    Abstract: A multi-degree-of-freedom flexible surgical instrument that includes a flexible continuous body structure (10) and a driving unit (20) is disclosed. The flexible continuous body structure (10) includes a distal structural body (11), a proximal structural body (16) and a middle connecting body (15). The distal structural body (11) includes a first distal structural segment (12) and a second distal structural segment (13). The proximal structural body (16) includes a proximal structural segment. Second segment structural backbones (163) located on the proximal structural segment are securely connected in one-to-one correspondence to or are the same as second segment structural backbones (133) located on the second distal structural segment (13). The middle connecting body (15) includes channel fixing plates (152), channel fixing blocks (153), first structural backbone guide channels (151) and second structural backbone guide channels (154).
    Type: Application
    Filed: August 31, 2017
    Publication date: August 15, 2019
    Inventors: Kai XU, Zhengchen DAI, Tianlai DONG, Jiangran ZHAO, Huan LIU, Yuyang CHEN
  • Publication number: 20190249704
    Abstract: Disclosed is a locking device, comprising an outer sleeve (1) and at least one locking unit (2) located in the outer sleeve (1), wherein the locking unit (2) is formed by connecting a plurality of pressing blocks (3), a gap (5) is provided between two adjacent ones of pressing blocks (3), a rod locking hole (6) is provided in the gap (5), and a set screw hole (7) is provided on the outer sleeve (1) at a position corresponding to the locking unit (2); and when a set screw is screwed into the set screw hole (7) to directly or indirectly press the locking unit (2), the locking unit (2) deforms and drives the pressing blocks (3) to tightly press rods (8, 9) mounted in the respective rod locking holes (6) at the same time.
    Type: Application
    Filed: August 30, 2017
    Publication date: August 15, 2019
    Inventors: Kai XU, Tianlai DONG, Zhengchen DAI, Jiangran ZHAO, Zhixiong YANG, Bo LIANG
  • Publication number: 20190239966
    Abstract: Disclosed is a flexible surgical instrument system, comprising a flexible surgical instrument and a driving unit, wherein the flexible surgical instrument comprises a distal structural body, a proximal structural body and a middle connecting body; the distal structural body comprises a distal structural segment, the distal structural segment comprising a distal spacing disk, a distal fixing disk and structural backbones; the proximal structural body comprises a proximal structural segment, the proximal structural segment comprising a proximal spacing disk, a proximal fixing disk and structural backbones; the middle connecting body comprises channel fixing s and structural backbone guide channels; the driving unit comprises a motor part, a motion conversion part and linear motion mechanisms; the motor part comprises a first fixing plate and a first motor; the motion conversion part comprises transmission chains, the transmission chain converts a rotational output of the first motor into a linear motion of outp
    Type: Application
    Filed: August 31, 2017
    Publication date: August 8, 2019
    Inventors: Kai XU, Zhengchen DAI, Shu'an ZHANG, Jiangran ZHAO, Zhixiong YANG, Huan LIU, Zhaoyu ZHANG, Wei WEI
  • Publication number: 20190231330
    Abstract: Disclosed is a flexible surgical instrument system, comprising a flexible continuum structure consisting of a distal structure, a middle connecting body and a proximal structure linked in sequence, and further comprising a transmission driving unit linked to the proximal structure. The transmission driving unit comprises a plurality of transmission mechanisms respectively driving corresponding proximal segments. The transmission mechanisms can convert a pair of rotary motion inputs with axes parallel to each other into a pair of rotary motion outputs with axes orthogonal to each other.
    Type: Application
    Filed: August 31, 2017
    Publication date: August 1, 2019
    Inventors: Kai XU, Zhengchen DAI, Shu'an ZHANG, Jiangran ZHAO, Huan LIU, Bo LIANG, Zhixiong YANG, Zenghui LIU
  • Publication number: 20190231452
    Abstract: Disclosed is a sterilizable flexible surgical instrument system, comprising a flexible continuous body structure. The flexible continuous body structure comprises a distal structural body, a middle connecting body and a proximal structural body. The distal structural body comprises at least one distal structural segment, the distal structural segment comprising a distal spacing disk, a distal fixing disk and a structural backbone. The proximal structural body comprises the same number of proximal structural segments as distal structural segments, the proximal structural segments comprising a proximal spacing disk, a proximal fixing disk and a structural backbone. The proximal structural segment is linked to the distal structural segment via a middle connecting body. A transmission unit is further comprised. The transmission unit comprises a transmission mechanism fixing plate arranged in front of the middle connecting body.
    Type: Application
    Filed: August 31, 2017
    Publication date: August 1, 2019
    Inventors: Kai XU, Zhengchen DAI, Shu'an ZHANG, Jiangran ZHAO, Zhixiong YANG, Huan LIU, Zenghui LIU
  • Publication number: 20190231329
    Abstract: Disclosed is a flexible surgical instrument system with a prepositioned drive input, the flexible surgical instrument system comprising a flexible continuous body structure and a driving unit. The flexible continuous body structure comprises a distal structural body, a proximal structural body and a middle connecting body. The distal structural body comprises at least one distal structural segment. The distal structural segment comprises distal spacing disks, a distal fixing disk and structural backbones. The proximal structural body comprises proximal structural segments having the same number as the number of distal structural segments. The proximal structural segment comprises proximal spacing disks, a proximal fixing disk and structural backbones. The middle connecting body comprises two channel fixing plates, and a structural backbone guide channel provided between the two channel fixing plates. The driving unit comprises a driving unit fixing plate provided in front of the middle connecting body.
    Type: Application
    Filed: August 30, 2017
    Publication date: August 1, 2019
    Inventors: Kai XU, Shu'an ZHANG, Zhengchen DAI, Jiangran ZHAO, Huan LIU, Yuyang CHEN, Zhixiong YANG, Zhijun ZHU
  • Publication number: 20190231331
    Abstract: Disclosed are a flexible surgical instrument and a driving unit thereof. The flexible surgical instrument may comprise a flexible continuous body structure composed of a distal structural body, a middle connecting body and a proximal structural body linked in sequence. The driving unit is linked to the flexible continuous body structure. When a structural backbone driving mechanism in the driving unit drives the proximal structural body to turn in any direction, the distal structural body correspondingly turns in the opposite direction. A surgical end effector driving mechanism in the driving unit can drive a surgical end effector linked to the distal end of the distal structural body to implement the action control of the surgical end effector.
    Type: Application
    Filed: August 31, 2017
    Publication date: August 1, 2019
    Inventors: Kai XU, Jiangran ZHAO, Zhengchen DAI, Huichao ZHANG, Huan LIU, Zenghui LIU, Zhixiong YANG, Zhijun ZHU
  • Publication number: 20190208989
    Abstract: Disclosed is a flexible surgical instrument system, comprising a flexible surgical instrument (10). The flexible surgical instrument (10) comprises a flexible continuous body structure composed of a distal structural body (11), a proximal structural body (16) and a middle connecting body (15). The distal structural body (11) comprises a distal structural segment (12, 13), and the distal structural segment (12, 13) comprises distal spacing disks (121, 131), a distal fixing disk (122, 132) and structural backbones (123, 133). The proximal structural body (16) comprises a proximal structural segment (17, 18), and the proximal structural segment (17, 18) comprises proximal spacing disks (171, 181), a proximal fixing disk (172, 182) and structural backbones (173, 183). The middle connecting body (15) comprises channel fixing plates (152) and a structural backbone guide channel (151).
    Type: Application
    Filed: August 31, 2017
    Publication date: July 11, 2019
    Inventors: Kai XU, Shu'an ZHANG, Huichao ZHANG, Tianlai DONG, Zhengchen DAI, Jiangran ZHAO, Zhaoyu ZHANG, HUAN LIU
  • Publication number: 20190192129
    Abstract: Disclosed is a flexible surgical instrument system (100), comprising a flexible surgical instrument (10) composed of a distal structural body (11), a proximal structural body (12), a driving transmission mechanism (13) and a middle connecting body (14), wherein a surgical end effector (111) is located at a distal end of the distal structural body (11), a proximal end of the distal structural body (11) is linked to the middle connecting body (14), and the driving transmission mechanism (13) is linked to the proximal structural body (12) via the middle connecting body (14); the distal structural body (11) comprises at least one distal structural segment (112, 113), wherein each distal structural segment (112, 113) comprises a distal fixing disk (115, 118) and structural backbones (116, 119); the proximal structural body (12) comprises at least one proximal structural segment (120, 121), wherein each proximal structural segment (120, 121) comprises a proximal fixing disk (122, 126), structural backbones (124, 12
    Type: Application
    Filed: August 31, 2017
    Publication date: June 27, 2019
    Inventors: Kai XU, Tiartlai DONG, Zhengchen DAI, Jiangran ZHAO, Huiehao ZHANG, Shu'an ZHANG
  • Publication number: 20190192246
    Abstract: This invention relates to a method for detecting faults in the operating states of a surgical robotic system, wherein the surgical robotic system including a master computer, a master embedded computer and a plurality of slave embedded computers is provided; the master computer controls the master embedded computer and the slave embedded computers via the LAN router; the master embedded computer communicates with the slave embedded computers via the LAN router and a first communication bus. In the present invention, the master computer, the master embedded computer and the slave embedded computers can detect faults interactively. Safety and reliability of the operation of the surgical robotic system can be improved without increasing any additional detection components, and communication burden of the system can be effectively reduced. The present invention can be widely applied to a minimally invasive surgical robotic system.
    Type: Application
    Filed: February 28, 2019
    Publication date: June 27, 2019
    Inventors: Kai Xu, Bin Zhao, Zhengchen Dai, Jiangran Zhao, Huan Liu, Wukun Mei, Huichao Zhang, Wei Wei, Bo Liang
  • Publication number: 20190192241
    Abstract: Disclosed is a flexible surgical instrument system based on a continuous body structure, the flexible surgical instrument system comprising a flexible surgical instrument and a driving unit. The flexible surgical instrument comprises a flexible continuous body structure composed of a distal structural body, a proximal structural body and a middle connecting body. The distal structural body comprises a distal structural segment, the distal structural segment comprising a distal spacing disk, a distal fixing disk and structural backbones. The proximal structural body comprises a proximal structural segment, the proximal structural segment comprising a proximal spacing disk, a proximal fixing disk and structural backbones. The middle connecting body comprises channel fixing plates and a structural backbone guide channel. The driving unit comprises a motor part, a motion conversion part and a plurality of linear motion mechanisms. The motor part comprises a first fixing plate and a first motor.
    Type: Application
    Filed: August 30, 2017
    Publication date: June 27, 2019
    Inventors: Kai XU, Zhengchen DAI, Shu'an ZHANG, Jiangran ZHAO, Zhixiong YANG, Yuyang CHEN, Wei WEI
  • Publication number: 20190192128
    Abstract: A flexible surgical instrument has structural bones backbones in crossed arrangement, the flexible surgical instrument includes a flexible continuum structure comprising a distal structure, a proximal structure and a middle connection body; the distal structure includes a first distal and a second distal segment, the proximal structure includes a proximal segment; first segment structural backbone(s) on the proximal segment and first segment structural backbone(s) on the first distal segment are fixedly connected respectively one to one or are of the same structural backbone; second segment structural backbone(s) on the proximal segment and second segment structural backbone(s) the second distal segment are fixedly connected respectively one to one or are of the same structural backbone; the middle connection body includes two passage fixing plates, between which structural backbone guiding passage(s) and structural backbone cross guiding passage(s) are fixedly connected; the first segment structural backbone
    Type: Application
    Filed: August 31, 2017
    Publication date: June 27, 2019
    Inventors: Kai XU, Zhengchen DAI, TianLai DONG, Jiangran ZHAO, Huan LIU, Bo LIANG, Zhixiong YANG, Zhijun ZHU
  • Publication number: 20190192239
    Abstract: A flexible surgical tool system comprising a multi-degree-of-freedom mechanical arm, the flexible surgical tool, the remote control device and a controlling computer is provided. A method for controlling the same with motion constraints is also provided. The method can comprise: obtaining a target posture of the surgical actuator, a current posture of the surgical actuator and bending angle values of the sections of the flexible surgical tool. A desired velocity of the surgical actuator and a motion limitation condition can be obtained. Joint velocity of the multi-degree-of-freedom mechanical arm and bending velocity of the sections of the flexible surgical tool can be obtained. A target joint position value of the multi-degree-of-freedom mechanical arm, a target bending angular value of the sections of the flexible surgical tool, and transmitting them to a corresponding controller to drive each section can be obtained. The above operations can be repeated.
    Type: Application
    Filed: February 28, 2019
    Publication date: June 27, 2019
    Inventors: Kai Xu, Jiangran Zhao, Zhengchen Dai, Zhixiong Yang, Zhijun Zhu, Bo Liang
  • Publication number: 20190193260
    Abstract: A flexible continuum structure capable of realizing a posture feedback is provided. The flexible continuum structure can comprise a flexible continuum structure body and a posture feedback mechanism. The flexible continuum structure body can comprise a distal structural body, a proximal structural body and a middle connecting body. The distal structural body can comprise distal spacing disks, a distal fixation disk and distal structural backbones. The proximal structural body can comprise proximal spacing disks, a proximal fixation disk and proximal structural backbones. The middle connecting body can comprise a proximal guide channel fixing plate, a distal guide channel fixing plate and a structural backbone guide channel. One end of the structural backbone is connected to the proximal fixation disk, and the other end passes through the proximal spacing disks, the structural backbone guide channel and the distal spacing disks and is then securely connected to the distal fixation disk.
    Type: Application
    Filed: February 28, 2019
    Publication date: June 27, 2019
    Inventors: Kai Xu, Jiangran Zhao, Zhengchen Dai, Huan Liu, Zhixiong Yang
  • Publication number: 20190192243
    Abstract: An integrated control system for a surgical robot based on embedded computers is provided. The system comprises a main control terminal and a controlled terminal. The main control terminal and the controlled terminal perform the exchange. A remote control device and pedals are connected with the host computer. The host computer performs the exchange of the control signals and the status signals with the controlled terminal through a control cabinet. When the pedal is depressed, the remote control device controls motions of a certain tool with which a mapping relationship is established. When the pedal is released, the corresponding motion control is cut off. The host computer is configured to perform the exchange of the control signals and the status signals with the controlled terminal through a control cabinet.
    Type: Application
    Filed: February 28, 2019
    Publication date: June 27, 2019
    Inventors: Kai Xu, Bin Zhao, Zhengchen Dai, Jiangran Zhao, Huan Liu, Wukun Mei
  • Publication number: 20190192242
    Abstract: Disclosed is a flexible surgical instrument system, comprising a flexible surgical instrument. The flexible surgical instrument comprises a flexible continuous body structure composed of a distal structural body, a proximal structural body and a middle connecting body. The distal structural body comprises a distal structural segment (12, 13), the distal structural segment comprising a distal spacing disk, a fixing disk and structural backbones. The proximal structural body comprises a proximal structural segment, the proximal structural segment comprising a proximal spacing disk, a proximal fixing disk and structural backbones. The middle connecting body comprises channel fixing plates and a structural backbone guide channel.
    Type: Application
    Filed: August 30, 2017
    Publication date: June 27, 2019
    Inventors: Kai XU, Zhengchen DAI, Huichao ZHANG, Shu'an ZHANG, Jiangran ZHAO, Zhixiong YANG, Wei WEI