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: 11903571
    Abstract: Disclosed is a flexible surgical instrument system, comprising: a distal structural body comprising at least one distal structural segment, the at least one distal structural segment comprising a distal fixing disk and distal structural backbones; a proximal structural body comprising at least one proximal structural segment, the at least one proximal structural segment comprising a proximal fixing disk, proximal structural backbones, and driving backbones, the distal structural backbones being securely connected in one-to-one correspondence to or the same as corresponding proximal structural backbones, and a driving unit comprising a linear motion mechanism operable to convert a first rotary motion into linear motions to cooperatively push or pull a pair of driving backbones of the driving backbones to turn the at least one proximal structural segment.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: February 20, 2024
    Assignee: BEIJING SURGERII ROBOTICS COMPANY LIMITED
    Inventors: Kai Xu, Shu'an Zhang, Zhengchen Dai, Jiangran Zhao, Huan Liu, Yuyang Chen, Zhixiong Yang, Zhijun Zhu
  • Patent number: 11872002
    Abstract: The present disclosure provides a flexible surgical instrument system, comprising: a flexible surgical instrument comprising: a distal structural body comprising at least one distal structural segment comprising a distal fixing disk and structural backbones; a proximal structural body comprising at least one proximal structural segment comprising a proximal fixing disk, structural backbones, and driving backbones, the structural backbones of the distal structural segment being securely connected to or the same as corresponding structural backbones of the proximal structural segment; and a driving unit comprising a plurality of linear motion mechanisms operable to cooperatively push-pull the driving backbones to turn the proximal structural segment, each linear motion mechanism comprising an input end to receive a first linear motion; and a sterile barrier disposed at a proximal side of the plurality of linear motion mechanisms and operable to transfer the first linear motions to the input ends, respectively.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: January 16, 2024
    Assignee: BEIJING SURGERII ROBOTICS COMPANY LIMITED
    Inventors: Kai Xu, Zhengchen Dai, Shu'an Zhang, Jiangran Zhao, Zhixiong Yang, Huan Liu, Zhaoyu Zhang, Wei Wei
  • Patent number: 11844502
    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: Grant
    Filed: August 31, 2017
    Date of Patent: December 19, 2023
    Assignee: BEIJING SURGERII ROBOTICS COMPANY LIMITED
    Inventors: Kai Xu, Zhengchen Dai, Tianlai Dong, Jiangran Zhao, Huan Liu, Yuyang Chen
  • Patent number: 11844503
    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 are operable to control the direction of a bending plane of the proximal segments and to control the bending angle of the proximal segments in the bending plane, so as to drive the proximal segments in the proximal structure to bend or turn in any arbitrary direction, and to further drive distal segments in the distal structure linked thereto to bend or turn in the opposite direction.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: December 19, 2023
    Assignee: BEIJING SURGERII ROBOTICS COMPANY LIMITED
    Inventors: Kai Xu, Zhengchen Dai, Shu'an Zhang, Jiangran Zhao, Huan Liu, Bo Liang, Zhixiong Yang, Zenghui Liu
  • Patent number: 11684432
    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: Grant
    Filed: August 31, 2017
    Date of Patent: June 27, 2023
    Assignee: Beijing Surgerii Robotics Company Limited
    Inventors: Kai Xu, Zhengchen Dai, Shu'an Zhang, Jiangran Zhao, Zhixiong Yang, Huan Liu, Zenghui Liu
  • Patent number: 11642112
    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: Grant
    Filed: August 31, 2017
    Date of Patent: May 9, 2023
    Assignee: BEIJING SURGERII TECHNOLOGY CO., LTD.
    Inventors: Kai Xu, Jiangran Zhao, Zhengchen Dai, Huichao Zhang, Huan Liu, Zenghui Liu, Zhixiong Yang, Zhijun Zhu
  • Patent number: 11484373
    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: Grant
    Filed: February 28, 2019
    Date of Patent: November 1, 2022
    Assignee: BEIJING SURGERII TECHNOLOGY CO., LTD.
    Inventors: Kai Xu, Tianlai Dong, Zhengchen Dai, Shu'an Zhang, Jiangran Zhao, Huan Liu
  • Patent number: 11484375
    Abstract: A control system for a surgical robot is provided. The control system includes a first embedded computer and a second embedded computer configured to receive status information from the first embedded computer. The status information includes a status of zero-return for a surgical tool driving module or an imaging tool driving module. The control system also includes a host computer configured to receive the status information from the second embedded computer. The surgical tool driving module or the imaging tool driving module includes a controller, a motor connected with a first coupling and configured to drive the surgical tool or an imaging tool, and a zero point switch configured to detect whether the first coupling is at a zero position. The controller is configured to transmit the status of zero-return to the first embedded computer based on whether the first coupling is at the zero position.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: November 1, 2022
    Assignee: BEIJING SURGERII TECHNOLOGY CO., LTD.
    Inventors: Kai Xu, Bin Zhao, Zhengchen Dai, Jiangran Zhao, Huan Liu, Wukun Mei
  • Patent number: 11359659
    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: Grant
    Filed: August 30, 2017
    Date of Patent: June 14, 2022
    Assignee: BEIJING SURGERII TECHNOLOGY CO., LTD.
    Inventors: Kai Xu, Tianlai Dong, Zhengchen Dai, Jiangran Zhao, Zhixiong Yang, Bo Liang
  • Patent number: 11357584
    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: Grant
    Filed: February 28, 2019
    Date of Patent: June 14, 2022
    Assignee: BEIJING SURGERII TECHNOLOGY CO., LTD.
    Inventors: Kai Xu, Bin Zhao, Zhengchen Dai, Jiangran Zhao, Huan Liu, Wukun Mei, Huichao Zhang, Wei Wei, Bo Liang
  • Publication number: 20220142629
    Abstract: The present disclosure generally relates to a surgical instrument. In some embodiments, the flexible surgical instrument, comprising: a distal structural body comprising first distal structural segment and second distal structural segment, the first distal structural segment comprising a first distal fixing disk and first distal segment structural backbones, the second distal structural segment comprising a second distal fixing disk and second distal segment structural backbones; and a proximal structural body comprising a proximal structural segment, the proximal structural segment comprising a proximal fixing disk, first proximal segment structural backbones, and second proximal segment structural backbones, the first proximal segment structural backbones being connected to the first distal segment structural backbones in a crossed arrangement; or the second proximal segment structural backbones being connected to the second distal segment structural backbones in a crossed arrangement.
    Type: Application
    Filed: January 19, 2022
    Publication date: May 12, 2022
    Inventors: Kai XU, Zhengchen DAI, TianLai DONG, Jiangran ZHAO, Huan LIU, Bo LIANG, Zhixiong YANG, Zhijun ZHU
  • Patent number: 11266388
    Abstract: A flexible surgical instrument has structural 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 segment 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 backbo
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: March 8, 2022
    Assignee: BEIJING SURGERII TECHNOLOGY CO., LTD.
    Inventors: Kai Xu, Zhengchen Dai, TianLai Dong, Jiangran Zhao, Huan Liu, Bo Liang, Zhixiong Yang, Zhijun Zhu
  • Patent number: 11241288
    Abstract: Disclosed is a flexible surgical instrument system, comprising a distal structural body comprising at least one distal structural segment each comprising a distal spacing disk, a fixing disk and structural backbones; a proximal structural body comprises at least one proximal structural segment each comprising a proximal spacing disk, a proximal fixing disk and structural backbones; a plurality of cable transmission mechanisms each comprising a gear set and a pulley-cable part, the gear set being operable to transfer a rotational motion to the pulley-cable part; and a driving unit comprising a motion transmission part comprising a plurality of proximal segment turning transmission chains to convert a rotational output into mutually reversed rotational motions, and transfer one of the mutually reversed rotational motions to one of the gear sets.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: February 8, 2022
    Assignee: BEIJING SURGERII TECHNOLOGY CO., LTD
    Inventors: Kai Xu, Zhengchen Dai, Huichao Zhang, Shu'an Zhang, Jiangran Zhao, Zhixiong Yang, Wei Wei
  • Patent number: 11234685
    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: Grant
    Filed: August 31, 2017
    Date of Patent: February 1, 2022
    Assignee: BEIJING SURGERII TECHNOLOGY CO., LTD.
    Inventors: Kai Xu, Tianlai Dong, Zhengchen Dai, Jiangran Zhao, Huichao Zhang, Shu'an Zhang
  • Publication number: 20220008148
    Abstract: The present disclosure provides a flexible surgical instrument system, comprising: a flexible surgical instrument comprising: a distal structural body comprising at least one distal structural segment comprising a distal fixing disk and structural backbones; a proximal structural body comprising at least one proximal structural segment comprising a proximal fixing disk, structural backbones, and driving backbones, the structural backbones of the distal structural segment being securely connected to or the same as corresponding structural backbones of the proximal structural segment; and a driving unit comprising a plurality of linear motion mechanisms operable to cooperatively push-pull the driving backbones to turn the proximal structural segment, each linear motion mechanism comprising an input end to receive a first linear motion; and a sterile barrier disposed at a proximal side of the plurality of linear motion mechanisms and operable to transfer the first linear motions to the input ends, respectively.
    Type: Application
    Filed: September 28, 2021
    Publication date: January 13, 2022
    Inventors: Kai XU, Zhengchen DAI, Shu'an ZHANG, Jiangran ZHAO, Zhixiong YANG, Huan LIU, Zhaoyu ZHANG, Wei WEI
  • Patent number: 11191425
    Abstract: Disclosed is a flexible surgical instrument system, comprising a distal structural body comprising at least one distal structural segment each comprising a distal fixing disk and structural backbones; a proximal structural body comprising at least one proximal structural segment each comprising a proximal fixing disk, structural backbones and driving backbones; a plurality of cable pulling mechanisms operable to convert a rotational motion into a linear motion to turn the at least one proximal structural segment; and a driving unit to input the rotational motion to the plurality of cable pulling mechanisms; the driving unit comprises: a plurality of driving shafts operable to transfer the rotational motion to the plurality of cable pulling mechanisms, and a first end of each of the plurality of driving shafts is connected with each of the plurality of cable pulling mechanisms.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: December 7, 2021
    Assignee: BEIJING SURGERII TECHNOLOGY CO., LTD.
    Inventors: Kai Xu, Shu'an Zhang, Huichao Zhang, Tianlai Dong, Zhengchen Dai, Jiangran Zhao, Zhaoyu Zhang, Huan Liu
  • Patent number: 11191599
    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: Grant
    Filed: February 28, 2019
    Date of Patent: December 7, 2021
    Assignee: BEIJING SURGERII TECHNOLOGY CO., LTD.
    Inventors: Kai Xu, Jiangran Zhao, Zhengchen Dai, Zhixiong Yang, Zhijun Zhu, Bo Liang
  • Publication number: 20210361365
    Abstract: The present disclosure generally relates to a surgical instrument. In some embodiments, The surgical instrument, comprising: a distal structural body comprising a first distal structural segment and a second distal structural segment in serial arrangement; a proximal structural body comprising a first proximal structural segment and a second proximal structural segment in nested arrangement; and the first proximal structural segment and the second proximal structural segment are operable to turn the first distal structural segment and the second distal structural segment, respectively.
    Type: Application
    Filed: August 10, 2021
    Publication date: November 25, 2021
    Inventors: Kai XU, Zhengchen DAI, Shu'an ZHANG, Jiangran ZHAO, Zhixiong YANG, Yuyang CHEN, Wei WEI
  • Patent number: 11173002
    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 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 output
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: November 16, 2021
    Assignee: BEIJING SURGERII TECHNOLOGY CO., LTD.
    Inventors: Kai Xu, Zhengchen Dai, Shu'an Zhang, Jiangran Zhao, Zhixiong Yang, Huan Liu, Zhaoyu Zhang, Wei Wei
  • Patent number: 11116592
    Abstract: Disclosed is a 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. The driving unit comprises a motor part, a motion conversion part and a plurality of linear motion mechanisms. The motor part comprises a motor fixing plate and a first motor. The motion conversion part comprises a plurality of first transmission chains, each of the first transmission chains converts rotary output of the first motor into a linear motion of two first output rods and the linear motion each of the two first output rods is transferred to an input end of each of the linear motion mechanisms through a sterile barrier, an output end of each of the linear motion mechanisms is connected to one end of one driving backbone.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: September 14, 2021
    Assignee: BEIJING SURGERII TECHNOLOGY CO., LTD.
    Inventors: Kai Xu, Zhengchen Dai, Shu'an Zhang, Jiangran Zhao, Zhixiong Yang, Yuyang Chen, Wei Wei