Patent ID: 11950859
Assignee: BEI JING LONGWOOD VALLEY MEDICAL TECHNOLOGY CO. LTD
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 5:
6. The navigation and positioning system of claim 1, wherein if the mechanical arm control module performs the rasion operation, the mechanical arm control module is configured to:
determine a safe operating range and a conical stereotactic boundary;
when an operation position of a mechanical arm exceeds the safe operating range, control force exertion to generate the conical stereotactic boundary to control the mechanical arm to rasp within the conical stereotactic boundary;
wherein the conical stereotactic boundary appears when an acetabular rasp moves close to a planned position of an acetabular shell in an acetabulum, the boundary is designed to be of a conical shape; when the acetabular rasp moves close to a target position, a cross section of the boundary is displayed to restrict the mechanical arm; when the acetabular rasp deviates from the conical stereotactic boundary, the acetabular rasp is guided back inside the conical stereotactic boundary; when the mechanical arm is used within the conical stereotactic boundary, the mechanical arm operates according to a coaxial within a positioning control range, wherein the mechanical arm supports power to complete high-speed rasion operations; if the mechanical arm moves beyond the conical stereotactic boundary by a preset angle, an electric source of the acetabular rasp is cut off to stop the rasion operation.