ROTARY POWERED ARTICULATION JOINT FOR SURGICAL INSTRUMENTS Russian patent published in 2018 - IPC A61B17/72 

FIELD: medicine.

SUBSTANCE: invention relates to medicine and can be used in surgical instruments. Articulation joint comprises a proximal portion that is coupled to an elongate shaft assembly of the surgical instrument. Distal joint portion is movably coupled to the proximal joint portion and is configured to interface with a surgical end effector. First gear train operably interfaces with a proximal firing shaft segment within the elongate shaft assembly and a distal firing shaft segment. Distal firing shaft segment is configured to operably interface with the surgical end effector for transmitting a rotary firing motion thereto from the proximal firing shaft segment to the surgical end effector. Second gear train operably interfaces with a proximal rotation shaft portion of the elongate shaft assembly for transmitting a distal rotational control motion to the surgical end effector.

EFFECT: surgical end effector can rotate relative to the elongate shaft assembly and facilitate articulation of the distal joint portion relative to the proximal joint portion.

20 cl, 117 dwg