Navigation Links
New training instrument allows surgeon to feel grasp force in keyhole surgery
Date:1/24/2011

The number of complications following keyhole surgery can be reduced by giving the surgeons a better feeling of how hard they are grasping the tissue with their operating instruments. This is made possible by designing the instrument in such a way that it sends tangible feedback signals to the handle held by the surgeon. Delft University of Technology researcher Eleonora Westebring-van der Putten has developed a working prototype for this.

Grasp force

Keyhole surgery has rapidly gained in popularity in hospitals. An exploratory operation known as a laparoscopy when carried out in the abdominal cavity is generally less invasive for the patient. But a laparoscopy calls for different manual skills than 'ordinary' open surgery. Training in these skills is therefore essential for the prevention of complications.

Problems with keyhole surgery partly arise because it is very difficult to gauge the force of the surgeon's grasp. The surgeon is therefore less able to determine whether he or she is grasping the tissue too hard or too gently.

Tangible

Industrial designer and human movement scientist Eleonora Westebring-van der Putten's research is focused on the improvement of grasp control and the learning of the associated skills. The solution is to give the surgeon tangible physical feedback through his or her instrument. "Experiments have shown that augmented feedback on the grasp force is a good way for surgeons of all levels to gain a better command of gauging laparoscopic grasp force."

Cylinder

Westebring has therefore developed a working prototype of a laparoscopic grasp instrument that gives augmented tangible feedback on the amount of grasp force being applied. This prototype therefore gives the surgeon the required tangible feedback. "There are sensors in the tip of the instrument that measure how hard the surgeon is grasping. This information is fed back to the handle, which contains a cylinder that can turn in relation to the hand, as if something is falling out of your hand. In this way the cylinder indicates that the surgeon has too little grip, and is therefore grasping too gently."

Vibrations

"The handle also contains vibrating elements, which start to vibrate if the surgeon is grasping too hard, while also taking account of how hard the surgeon is pulling. The harder he or she pulls on the tissue, the less hard he or she should grasp. We also take the type of tissue into account. After all, it makes quite a difference whether you are grasping an intestine or working with a liver."

Training

In the future an instrument such as Westebring's could be used in training for real operations. "By training with feedback, surgeons learn to control their laparoscopic grasp force more quickly. The forces they apply are lower." What is more, the effect seems to last. "When the feedback signal is removed, the surgeons can still carry out the procedure with reduced force. The feedback therefore helps with the control of the laparoscopic grasp force, even if it is only used in training."


'/>"/>

Contact: Ilona van den Brink
i.vandenbrink@tudelft.nl
31-152-784-259
Delft University of Technology
Source:Eurekalert

Related biology news :

1. Researchers develop new self-training gene prediction program for fungi
2. NC State takes lead in crime scene investigation training
3. National and international doctoral training
4. Virtual reality: Keyhole surgeons training could help meet European working time directives
5. Biophysical sciences program receives $2 million training grant
6. Building strong bones: Running may provide more benefits than resistance training, MU study finds
7. Stimulus-funded university research addressing issues from climate change to cancer, creating jobs and training a new generation of scientists
8. Concordia University to build innovative centre for health research and training
9. Kent State receives $2.7 million NSF training grant for environmental aquatic resource sensing
10. Rockefeller Foundation supports expansion, training of e-health work force in developing world
11. Less is more when restraining calories boosts immunity
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/28/2017)... 2017 The report "Video Surveillance ... Servers, Storage Devices), Software (Video Analytics, VMS), and Service ... Forecast to 2022", published by MarketsandMarkets, the market was ... projected to reach USD 75.64 Billion by 2022, at ... base year considered for the study is 2016 and ...
(Date:3/24/2017)... , March 24, 2017 The Controller General of ... Mr. Abdulla Algeen have received the prestigious international IAIR Award ... Continue Reading ... ... and Deputy Controller Abdulla Algeen (small picture on the right) have received ...
(Date:3/23/2017)... PUNE, India , March 23, 2017 The report ... Equipment, Touchless Biometric), Industry, and Geography - Global Forecast to 2022", published by ... growing at a CAGR of 29.63% between 2017 and 2022. ... ... Logo ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... ... first-ever genomics analysis platform specifically designed for life science researchers to analyze ... pioneering researcher Rosalind Franklin, who made a major contribution to the discovery ...
(Date:10/11/2017)... NJ (PRWEB) , ... October 11, 2017 , ... Personal eye wash is a basic ... one eye at a time. So which eye do you rinse first if a dangerous ... have Plum Duo Eye Wash with its unique dual eye piece. , “Whether ...
(Date:10/11/2017)... -- VMS BioMarketing, a leading provider of patient support solutions, has ... (CNE) network, which will launch this week. The VMS CNEs ... professionals to enhance the patient care experience by delivering peer-to-peer ... care professionals to help women who have been diagnosed and ... ...
(Date:10/11/2017)... ... October 11, 2017 , ... A new ... rates in frozen and fresh in vitro fertilization (IVF) transfer cycles. ... to IVF success. , After comparing the results from the fresh and frozen ...
Breaking Biology Technology: