The robots, which can call humans for back-up as needed, use AI and machine learning to patrol areas.
The firm plans to use the money to transform its building block technology from prototype to product.
The startup seeks to use the $35 million raised in this round to achieve FDA approval for its handheld, AI ultrasound diagnostic tool.
The medical subsidiary of the German health giant purchased all issued and outstanding shares of the robotics firm.
The devices are designed to help wearers monitor their exercise level, said the NHS.
The collaboration rests on three pillars: systems and solutions, software optimization for HPC and AI convergence, and ecosystem enablement.
To-date, the San Francisco-based biotech company has raised $10.5 million in capital.
The asset purchase agreement will enable Switzerland-based blox to reach new markets and channels.
Together, the companies will deliver Wi-Fi and online entertainment to on-demand buses in Kenya.
Attabotics plans to use the funding to fuel growth, including hiring, manufacturing operations and technology development.
