Battery-Powered Hand-Held Ultrasonic Surgical Cautery Cutting Device

A battery-powered, modular surgical device, comprising:

• an electrically powered surgical end effector assembly operable to surgically interface with human tissue;
• and
• a removable hand grip shaped to permit handling thereof by one hand of an operator, the removable hand grip including at least one reusable battery:
• electrically coupled to the surgical end effector assembly to power and thereby cause the surgical end effector assembly to operate;
• and
• removably secured to the surgical end effector assembly such that the at least one reusable battery is selectively exposed to the surgical environment when removed therefrom.

A removable battery assembly of a battery-powered surgical device having an electrically powered surgical instillment operable to surgically interface with human tissue, the removable battery assembly comprising:

• a battery body outer shell having an upper portion, a lower portion, and defining a shell interior, the battery body outer shell:
• being a hand grip of the surgical device when secured to the surgical instrument;
• being shaped to permit handling of the surgical device by one hand of an operator;
• having, in the shell interior, a cordless rechargeable battery that powers the surgical instrument;
• having an upper portion shaped to removably connect to a portion of the surgical instrument and create an aseptic seal around at least a part of the upper portion when connected thereto and be selectively exposed to the surgical environment when removed therefrom;
• and
• having exterior conductors electrically coupled to the cordless rechargeable battery and positioned to supply at least power to operate the surgical instrument.