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IBL-26-1102

SOBW-type surgical device

Listed on
2026-07-13
Robotics Technology Robot Arm/Manipulator Mechanism/Hardware
0.31
CI (SI)
★★★★★★★★★★
0.29
TR (N)
★★★★★★★★★★
1.06
MC
★★★★★★★★★★

This technology is an electrically driven SOBW-type surgical device for robotic surgery. It eliminates the conventional mechanical cable-driven system at the end-effector, instead utilizing direct electrical power to perform gripping, pitching, and yawing motions through an integrated motor and gear structure.

In conventional surgical robots, the end-effector is driven by cables, which leads to complex connection structures as the number of joints and the length of the extension increase. This often results in backlash due to long-distance transmission, as well as durability and precision issues caused by cable stretching or breakage.

This technology proposes a method of directly integrating motors, screw components, and gears within the end-effector to convert electrical energy into mechanical energy instantaneously. By performing gripping, pitching, and yawing motions independently without cables, it achieves higher control precision and a more compact structure. Applicable to the end-effectors of laparoscopic surgical robots, it fundamentally resolves the issues of backlash and durability associated with cable-driven systems while simultaneously enhancing the miniaturization and precision of surgical instruments.

Key Features:
  • Motor integrated directly into the end-effector, powered by electricity
  • Screw component that converts the motor's rotation into linear motion
  • Gear assembly that transmits the converted power to execute gripping, pitching, and yawing motions
  • Electrically driven structure that converts electrical energy into mechanical energy instantaneously without cables
Seoul National University
Seoul National University R&DB Foundation | Kim Seong-wan
Document
Date of application:
2013-11-06
|
Patent registration number:
10-1502581
Industry
healthcare•pharm
robot•automation
Technology
Medical devices
Robotics
Country
Korea
United States
Family Patent

US2014-0243887A1, US9968413B2

Price
가격협의
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