The phrase "a device that helps" is correct and usable in written English.
You can use it when describing a tool or gadget that provides assistance or support in performing a task.
Example: "This is a device that helps users manage their time more effectively."
Alternatives: "a tool that assists" or "an instrument that aids".
They often complement or set up the sketches, a device that helps make the episodes seem less random.
Lupe Herasimchuk didn't have time to retrieve her CPAP machine, a device that helps those with sleep apnea breathe easier.
It's a device that helps to underline the ethnic divisions and tensions that arise under squalid circumstances.
Dr. Carpenter obtained more of the boy's beads and tested them in a mass spectrometer, a device that helps identify chemical compounds.
The Guidant Corporation said yesterday that it would stop selling a device that helps treat a weakened blood vessel in the abdomen without surgery.
A1 Guidant Withdraws Device The Guidant Corporation will stop selling a device that helps treat weakened blood vessels in the abdomen.
This line of study led him to invent a device that helped to seal his reputation as a scientific visionary: the reflecting telescope.
You learn the culture of business, the values of business". His skills as a doctor, engineer, and entrepreneur led him to found Nellcor, which developed the pulse oximeter, a device that helped medical professionals monitor oxygen levels of anesthetized patients.
After Hawking lost his voice to pneumonia the prior year, computer scientist Walter Woltosz gave him a device that helped him vocalize words that he typed.
Among the products that will be featured are a collar that stops dogs from running away, a wearable device that helps with stroke rehabilitation, and a device to create a new bike-sharing economy.
Another great deal is Find My Car Smarter, a $25 device that helps you locate your ride in a crowded parking lot.
