Hand held surgical handle assembly, surgical adapters for use between surgical handle assembly and surgical loading units, and methods of use

A surgical system comprising:

• a handheld surgical device including:
• a handle housing;
• a drive motor disposed in the handle housing and having an axis of rotation defining a longitudinal axis;
• a first, a second, and a third rotatable drive connector each operably coupled to the drive motor, the first, the second, and the third rotatable drive connectors defining a respective axis of rotation that is parallel to the longitudinal axis, the first rotatable drive connector diametrically opposed from the second rotatable drive connector and defining a first plane bisecting the handle housing, the third rotatable drive connector being offset from the first plane;
• and
• a removable battery;
• an adapter configured to removably couple to the handheld surgical device, the adapter including:
• a drive coupling assembly including a first, a second, and a third rotatable connector sleeve each configured to operably couple to the first, the second, and the third rotatable drive connectors, respectively, wherein rotation of the first, the second, and the third rotatable drive connectors causes a corresponding rotation of the first, the second, and the third rotatable connector sleeves;
• a knob housing extending from a distal portion of the drive coupling assembly, a radial center of the knob housing defining a central axis, wherein the third rotatable connector sleeve is disposed on the central axis and defines a second plane parallel to, and offset from, the first plane of the handheld surgical device, when the adapter is connected to the handheld surgical device, and the first and the second rotatable connector sleeves are disposed on the first plane of the handheld surgical device and offset from the second plane, when the adapter is connected to the handheld surgical device;
• an outer tube extending from a distal portion of the knob housing;
• and
• a loading unit coupling assembly disposed on a distal portion of the outer tube;
• and
• a loading unit configured to removably couple to the loading unit coupling assembly and to be actuated by at least one of the rotatable drive connectors of the handheld surgical device.