The Advantages of Using BioDynamix Anastomosis in Gastrointestinal Surgery
Posted Aug 02 2010 4:20am
Anastomosis is the medical term for reconnecting to hollow organs after dissection during surgery. Anastomosis is an integral part of a colorectal surgery, in which a section of the intestine is removed, for example, as part of colon cancer treatment.
A leak from the anastomosis is one of the common and most complicated and dangerous problems in colorectal surgery. The current standard for generating an intestinal anastomosis is using surgical staplers.NiTi™ Surgical Solutions, an Israeli startup, developed a new and innovative way to prevent problems in intestinal anastomoses in colorectal surgery. The company developed a technology called BioDynamix™ Anastomosis for reconnecting the intestine without surgical staples. The technology is based on an old concept of compression anastomosis, in which the tissue is reconnecting by applying pressure on the two ends and taking advantage of the body’s natural healing process. However, several attempts in the past to implement this idea were not accepted by the medical community due to several problems.
BioDynamix™ Anastomosis utilizes Nitinol, a shape-memory alloy that can be stretched far beyond the limits of other materials such as steel, yet completely returns to the original shape and mechanical properties. Another unique property of Nitinol, which is used in this technology, is the fact that the force that a spring made of this alloy generates is relatively constant regardless of the extent to which it is stretched. Nitinol has recently penetrated to medical devices in various fields. The use of Nitinol and its unique properties enables BioDynamix™ Anastomosis to succeed in colon cancer treatment surgery, for example, where previous attempts to implement compression anastomosis have failed.
In the BioDynamix™ Anastomosis devices, the exclusive Nitinol springs stretch to open the force generating element (a ring or a clip). Once this element is during the colon cancer surgery, the element returns to its original position. The tissue trapped within the element is cut off from its blood supply and becomes necrotic. The two pieces of tissue along the outside of the element are held in close proximity to allow a naturally prescribed healing process. One of the most important advantages of the products based on this technology is that the part generating the compression is "naturally" expelled from the body after the anastomosis has been successfully completed. Thus, no foreign bodies are left within the intestinal lumen for the long run, while surgical staples are left to hold the anastomosis forever.
There are already two CE-marked and FDA-cleared products in the market, which are based on BioDynamix™ Anastomosis technology, for different anatomical parts. The ColonRing™, an endoluminal device, designed for the creation of end-to-end and end-to-side anastomoses in both open and laparoscopic surgeries, mainly of the colon and of the rectum, as part of colon cancer treatment, for example. The other product based on the same technology is the Hand CAC™ 30, designed for the creation of side-to-side anastomoses, mainly in the small intestine and the colon.