Patent ID: 11857282
Assignee: nan
Field: Medical technology (Instruments)
Classification: CPC A  B | IPC A  B

Claim 0:
1. A multi-segment rotation robotic arm, comprising:
a plurality of concatenated robotic arm segments; and
a pivoting structure and a driving device are located between two of the concatenated robotic arm segments, wherein, the pivoting structure is located between an adjacent oblique section of the two of the concatenated robotic arm segments, and the driving device is used to drive the pivoting structure so that the two of the concatenated robotic arm segments move relatively to each other along the adjacent oblique section, characterized by:
any one of the concatenated robotic arm segments is an elliptical cylinder having an oblique section at each end, and the oblique section is a circle, a circular flange is formed on the rear end oblique section, and a circular groove is formed on the front end oblique section, when the front end oblique section and the rear end oblique section are adjacent to each other, the circular flange and the circular groove cooperate with each other;

wherein the driving device comprises:
an electric motor; and
an electrical conductive element electrically connected to the motor, the electrical conductive element comprises a conductive ring combination and a conductive wire combination, the conductive ring combination is arranged on the circular flange and the circular groove of the concatenated robotic arm segment respectively, and the electrical conductive wire combination electrically connected between the conductive ring combination and the electric motor; and

wherein the pivoting structure comprises:
a front end joint, which is near the front end oblique section; and
a rear end joint, which is near the rear end oblique section of the next concatenated robotic arm segment,

wherein the front end joint and the rear end joint are pivotally coupled by a universal joint.