SanaHeal’s Tissue Tape Could Replace Sutures
Connecting two pieces of tissue is one of the most repeated steps in surgery.
It happens in heart bypass, C-sections, hernia repair, and tendon repair.
For generations, the answer has been a needle and thread, or a staple.
An MIT spinout called SanaHeal is building a different answer, and it works more like tape than thread.
What SanaHeal Built
SanaHeal makes a hydrogel adhesive from polymers and water that sticks to wet, uneven tissue within seconds.
Early versions worked like double-sided tape, using polyacrylic acid, the absorbent used in diapers, to pull water off the tissue surface and grip it.
The result is an air-tight and fluid-tight seal without passing a needle through the tissue.
The design was inspired by sticky materials in nature, including barnacles and spider webs.
Why Sutures and Staples Are a Problem
Every suture or staple pierces the tissue it is meant to protect.
That damage can trigger immune responses, scar tissue, and infection.
Small errors in suturing or stapling can also cause leaks, which carry serious consequences for patients.
In microsurgery, the needles can be thinner than a human hair, which makes the work extremely difficult to perform perfectly.
Where It Fits With Surgical Robots
Suturing is among the hardest tasks for any robotic system to perform well.
The company’s founder, Hyunwoo Yuk, says a stick-on closure is far less invasive and easier to use with surgical robots.
Replacing a multi-step stitching motion with a single placement step could simplify what a robot, or a human hand, has to do.
Faster and simpler closures could also help reduce the rising cost of surgery.
What Is Coming Next
SanaHeal’s technology has regulatory approval to stop trauma bleeding.
Human trials to control bleeding during surgery and to repair injured tissues are planned for 2027.
The company works as a platform and supplies its material to larger device makers rather than building every product itself.
Those partners are developing products for open, laparoscopic, and endoscopic surgery.
They are also developing sutureless implants for hernia and nerve repair.
The lab work behind the company began in 2019 at MIT, and the company was formed in 2021.
The 2026 Surgical Technology Intelligence Report maps the technologies reaching the operating room. Read the report
