Conductor arrangements for electrically powered surgical instruments with rotatable end effectors

摘要

A surgical instrument that includes a housing that has an elongated shaft assembly attached thereto that is configured to be rotated relative to the housing. The surgical instrument further includes a conductor arrangement that facilitates transfer of electrical power or current from a power source which may be located in the housing or external to the housing to a distal portion of the elongated shaft assembly or to a surgical end effector coupled thereto. The surgical instrument may further include a travel limiting arrangement for limiting the amount of rotary travel of the elongated shaft assembly relative to the housing to a predetermined range of rotary travel.

主权项

1. A surgical instrument comprising:
a housing; a rotatable member supported on a mounting portion of the housing for rotation therearound through a range of rotation; an elongated shaft assembly defining a longitudinal tool axis and being operably coupled to the rotatable member for rotational travel therewith about the longitudinal tool axis; a source of electrical power; and a conductor management system comprising:
a spool conductor assembly including a first conductor end fixed to the mounting portion of the housing and a second conductor end fixed to the rotatable member for rotation therewith through the range of rotation;a primary conductor supported within the housing and configured to transmit electrical power from the source of electrical power to the spool conductor assembly, wherein the primary conductor is coupled to the spool conductor assembly; anda shaft conductor coupled to the spool conductor assembly for transmitting electrical power to a distal end of the elongated shaft assembly.