Patents by Inventor Jiangran ZHAO

Jiangran ZHAO 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: 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: 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
  • Publication number: 20230294284
    Abstract: A control method for a robot system is provided. The robot system includes a plurality of motion arms, and the plurality of motion arms include a first motion arm and a second motion arm. The control method includes: determining a motion mode of ends of the first motion arm and the second motion arm of the robot system, where the motion mode includes synchronous motion of the ends of the first motion arm and the second motion arm; determining motion paths of the first motion arm and the second motion arm based on the motion mode and a relative end pose relationship between the first motion arm and the second motion arm; and controlling, based on the corresponding motion paths, the first motion arm and the second motion arm to move.
    Type: Application
    Filed: July 29, 2021
    Publication date: September 21, 2023
    Applicant: BEIJING SURGERII ROBOTICS COMPANY LIMITED
    Inventors: Kai XU, Jiangran ZHAO, Haozhe YANG
  • Publication number: 20230256607
    Abstract: A control method for controlling a robot system is provided. The robot system includes a plurality of motion arms. The plurality of motion arms include a reference motion arm and at least one following motion arm. The control method includes: controlling, based on an input command, the reference motion arm to move to a reference position and a reference orientation; determining a positioning position and a positioning orientation of the at least one following motion arm based on the reference position and the reference orientation of the reference motion arm and a relative pose relationship between the plurality of motion arms; and controlling the at least one following motion arm to move to the positioning position and the positioning orientation.
    Type: Application
    Filed: June 15, 2021
    Publication date: August 17, 2023
    Applicant: BEIJING SURGERII ROBOTICS COMPANY LIMITED
    Inventors: Kai XU, Jiangran ZHAO
  • 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
  • Publication number: 20220071611
    Abstract: A double-bending flexible surgical tool system includes a mechanical arm including a first continuum segment, a rigid connection segment, a second continuum segment, and a third continuum segment. The first continuum segment and the second continuum segment are associated to form a first dual continuum mechanism. A proximal continuum segment disposed at a proximal end of the first continuum segment and associated with the third continuum segment disposed at a distal end of the second continuum segment form a second dual continuum mechanism. A transmission driving unit associated with the rigid connection segment and the proximal continuum segment, respectively, is configured to drive the first continuum segment to bend in any direction to drive the second continuum segment to bend in an opposite direction, and to drive the proximal continuum segment to bend in any direction to drive the third continuum segment to bend in an opposite direction.
    Type: Application
    Filed: December 27, 2019
    Publication date: March 10, 2022
    Applicant: BEIJING SURGERII TECHNOLOGY CO., LTD.
    Inventors: Kai XU, Jiangran ZHAO, Linhui NIU, Yi SUN, Jing 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