line snuggler

Nursing & Patient Care Innovations

MANAGEMENT: Robert Thelen
DUKE INVENTOR: Marybeth Tetlow

Line Snugglers are nursing products developed by Marybeth Tetlow, a clinical nurse on the Duke Pediatric Blood and Marrow Transplant Unit.

Marybeth Tetlow Invented at Duke 2017

These waterproof sleeves or adjustable vests with waterproof sleeves provide a means to protect central line lumens and their connected IV tubing from contamination or entanglement in infants, small children, and now older patients as well.

Line Snugglers unique design keeps lines bundled and organized for easy movement and shields the central lines and all IV connection points from body fluids and other debris, such as glitter, playdoh, glue, or paint. Additionally, this innovation decreases the anxiety of patients, families, and nurses, as children actively go through intense treatment for life-threatening illnesses.

“The Duke OLV team has helped me in protecting my ideas’ design and in the early stages of a start-up, something we will continue to work on so that soon patients, families, and nurses everywhere can benefit from my invention!” –Marybeth Tetlow, inventor of Line Snugglers



Nivi uses data to revolutionize family planning for everyone, everywhere.

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Nivi from asknivi on Vimeo.

Everyone should have access to accurate family planning information and the ability to choose the method that is right for them.

Nivi works towards this goal by providing a free mobile phone service that empowers people through better information, services customized to their needs, and gives them a voice in the health care system.

Trusted Source

Our vision to become the most trusted source of information about women’s health and well-being.

Nivi was launched with funding from Merck for Mothers. Their mission every day is to build great products and offer the highest quality service to help people achieve their goals of living a healthy, happy, and productive life.

group of surgeons in operating room at hospital

Lacuna Medical

DUKE INVENTOR: Muath Bishawi

Lacuna Medical has created a 3D shape catheter that is more resistant to catheter failure.  The 3D shape protection uses memory shape to the protect the proximal holes of the catheter.


3D shape protection using memory shape to protect the proximal holes