A tissue-freezing probe could make breast cancer treatments affordable and available to women in low-income and low-resource countries.

Often, catheters remain in too long, which can cause infection, or they aren't necessary at all. New research suggests a way to better avoid these issues.

Bone infections after surgery can be hard to treat and delay healing. A new hydrogel attacks bacteria and encourages regrowth with a single application.

A new wearable electronic "tattoo" allows accurate, uninterrupted heart monitoring for days, researchers say.

A new "virtual biopsy" device can quickly detect a skin lesion's depth and its potential malignancy—without using a scalpel.

A toy-inspired device called the 3D-Fuge works as well as an expensive centrifuge, but costs less than $1.

A new way to split cancer cells from blood, called Hydro-Seq, could lead to better treatments—and ways to monitor their effectiveness.

Currently, doctors palpate baby heads to detect extra pressure in the skull, but that can be inaccurate. Students have devised a new method.

Current seizure tracking systems tether patients to a machine. The new sensor could give them more freedom.

New tech that people can wear on their wrist could keep hackers from attacking their pacemakers.