Office of Technology Transfer – University of Michigan

Device for Fixation of an Adjustable Length Tube Through a Preformed Tract into a Hollow Cavity

Technology #6633

Patients who can’t get enough food or liquids through the oral route use an enteral feeding tube. This may be due to decreased appetite, difficulty in swallowing and post-surgery that interferes with eating. The tube transfers food directly into the stomach through the abdominal skin via a surgically-created tract. Feeding tube is preferred for patients who require long-term nutrition support. These devices are fixed in the stomach typically using either a silicone balloon or rigid internal bumper.

Device for fixation of an adjustable length enteral feeding tube

The fixation device consists of support struts that are attached to locking rings on each end, and encased in a membrane. An insertion rod is used for locking or unlocking the fixation mechanism. The fixation mechanism makes the device adjustable for the large spectrum of patient sizes in contrast to the balloon-based and bumper-based devices that need different size devices for different patients.


  • Gastrostomy and/or gastrojejunostomy tube fixation
  • Jejunostomy or other small-bowel tube fixation
  • Cecostomy or other large intestinal tube fixation
  • Laparoscopic or thoracoscopic port placement, or other temporary trans-cutaneous instrument placement into a body cavity
  • Reversible fixation component for non-medical devices and applications
  • Adjustable length tube or conduit
  • Fixation mechanism for low profile button versions for the above tube devices


  • Adjustability of the size of device for the large spectrum of patient sizes
  • Capability of the device to grow with the pediatric patients
  • Ease of insertion and removal of the device