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Minimally invasive surgeries: Laser suturing
Date:2/28/2011

This release is available in German.

More and more often, abdominal surgeries are being carried out in a minimally invasive manner. A small incision in the abdominal wall is sufficient for the surgeon to be able to insert the instrument and make the organs visible with an endoscope. This technique is gentler and does not stress the body as much as traditional surgeries do. However, these minimally invasive surgeries pose a special challenge to the surgeons. In particular, the suturing meaning joining the tissue with needle and suture material - demands great skill and dexterity. Very often, piercing the tissue and tying the knots is difficult after all, the surgeons must perform surgeries in very tight quarters, while having very little room to move. Unlike when sewing textiles, a knot must be made after every stitch, which is a very exacting process that stresses the patient and can cause a number of complications. If the suture is too tight, there is the danger of a minor hemorrhage. In addition, the suture material can cut into the tissue and strangulate vessels. In worst cases the tissue may even die. However, if the suture is too loose, there may be bleeding at the edges of the wound.

Currently, setting the correct suture tension depends on the experience of the surgeon. He must subjectively estimate the optimum tension and do this anew for every surgery. He does not have access to a reproducible, standardized setting. In the future, a minimally invasive suturing instrument shall make suturing easier. The researchers of the Fraunhofer Institute for Production Technology IPT in Aachen have developed this instrument within the scope of the InnoNet project "The Suture" (see below). In a new, semi-automatic process the suturing instrument enables the surgeon to connect the suture material with a previously set, predefined tension. Not only
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Contact: Adrian Schtte
adrian.schuette@ipt.fraunhofer.de
49-241-890-4251
Fraunhofer-Gesellschaft
Source:Eurekalert  

Page: 1 2 3

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