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Moratuwa Uni undergrads invent Thermal Ablation device


A team comprising final year students of the Department of Mechanical Engineering, University of Moratuwa has developed an Endometrial Ablation device which possesses the proper live visual inspection capability.   

In some instances heavy abnormal bleeding, which takes place during the menstruation cycle of women, will subject to hysterectomy due to failed medical treatment. Hence many Gynecologists decide to remove the uterus. Before this device was invented there was a practice of removing the uterine wall using a heated balloon and this processposed a significant health risk.   

The three final year students, K.P.N. Gunarathne, M.R. Brian and R.L.A. Harshana of Department of Mechanical Engineering have carried out the research. They have been able to design and develop the machine under the guidance and supervision of Dr. Ranjith Amarasinghe, Director at the Centre for Advanced Mechatronics Systems and Coordinator for Mechatronic Systems Engineering Stream and Senior Lecturer of Department of Mechanical Engineering at the University of Moratuwa, Dr. Madhura Jayawardana a Consultant Obstetrician and Gynecologist and Senior Lecturer of Faculty of Medical Science, University of Sri Jayewardenepura and Dr. Nirosh Jayaweera, Senior Lecturer of Department of Mechanical Engineering at the University of Moratuwa.   

  • The removal of the uterine wall using a heated balloon had been done without the proper inspection of the inner uterus. This method poses a significant risk
  • The machine has been successfully tested using a uterus of a pig and we expect to test the machine using a removed human uterus in the future

The ablation device will be inserted through the cervix of the uterus and the correct placement of the device will be verified through the live video feedback which is given through the endoscopic camera. Here the live visuals are transmitted using WIFI connectivity and it can be monitored either using a consultant’s smartphone or pre-set display unit. After the proper placement of the device inside the uterus, the thermal balloon will be inflated using a liquid solution until it covers a major area of inner layer of the uterus. Then the set values for the ablation process will be selected under the recommendation of a doctor. When the ablation process commences, the preset ablation temperature will be automatically maintained within the uterus for a preset time period. (Ex. 80 degree Celsius)   

Dr. Madhura Jayawardana stated,” The removal of the uterine wall using a heated balloon had been done without the proper inspection of the inner uterus. This method poses a significant risk and there were possibilities that the machine reached the intestine after measuring the length between the cervix and the uterus,” Dr. Jayawardana said.  

Using a camera for feedback

The speciality of the machine invented by the undergrads is that a camera is used to investigate the inner uterus. The camera has the ability to transfer the photos, provide live videos and information on heating and the pressure inside the uterus to a computer or a mobile phone using wireless Wi-Fi technology. Further, it has the capability to automatically control the temperature within the thermal balloon of the ablation system in accordance with the set value.   


The machine is being used for clinical investigations at the first stage and will be used for the surgical purpose during the second stage. The removal of the uterus wall is defined as Thermal Ablation. Presently, there are no machines that can transmit the photos and live videos without a cable. As a solution to this issue, the undergraduates of University of Moratuwa were able to invent this machine at a low cost.   

  • Though Sri Lanka hasn’t focused on encouraging novel ideas and concepts, a country like Japan gives priority to such innovations
  • A student from this team has already been selected as a researcher from the Mechatronics Research Unit of University of Miyazaki, Japan and he is able to carry out further research on this area

Lower cost

The existing machine, currently used in hospitals during surgeries, costs LKR 35,000 to 60,000. We strongly believe that we will be able to perform the surgery at a much lower cost in the future. This surgery will not be performed on younger women and is generally performed on women who already have children or on women who are in their middle ages and have no intention of having more children. “The machine has been successfully tested using a uterus of a pig and we expect to test the machine using a removed human uterus in the future,” said Dr. Jayawardana.

Dr. Ranjith Amarasinghe stated,” Though Sri Lanka hasn’t focused on encouraging novel ideas and concepts, a country like Japan gives priority to such innovations”.
A student from this team has already been selected as a researcher from the Mechatronics Research Unit of University of Miyazaki, Japan and he is able to carry out further research on this area from September onwards in Japan.

He said ,”I also would like to express our gratitude to Prof. Kapila Perera, Vice Chancellor, University of Moratuwa, Prof. Nalin Wickramarachchi, Dean, Faculty of Engineering, Prof. Ruwan Gopura, Head, Department of Mechanical Engineering and all others who were involved with this project for their support given to work towards our research goals”.   

The ablation device will be inserted through the cervix of the uterus and the correct placement of the device will be verified through the live video feedback which is given through the endoscopic camera

 


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  Comments - 9

  • Gamarala Wednesday, 1 August 2018 10:14

    What do you mean they invented Thermal ablatiion? This device has been used in developed countires for years in hospitals . Its a process of removal of material from the surface of any body part such as the uterus or any part of the human body by vaporization, chipping, or other erosive processes.

    Reply : 3       13

    Gamarala Wednesday, 1 August 2018 10:15

    What do you mean they invented Thermal ablatiion? This device has been used in developed countires for years in hospitals . Its a process of removal of material from the surface of any body part such as the uterus or any part of the human body by vaporization, chipping, or other erosive processes.

    Reply : 1       4

    Semasinghe Wednesday, 1 August 2018 10:33

    For country cursed by political and beurocratic dumpness , this is news of hope and inspiration. Hope that will not be a mere hope!

    Reply : 2       2

    Lankaboy Wednesday, 1 August 2018 12:24

    Sl does not have any now regulatory approval systems like other countries have. If I am right, any medical instrument or medicines which are approved by CE mark ( europe) or FDA(US) are allowed to use in SL.. Cuurentlyavailable Ablation device must have gone though myears of testing in Labs , animal models ..plus a lot of other bio compatibility test before FDA and CE mark certificates approvals.. Every materials and design issues has to be approved and make sure no harm for humans.I wonder how this present device get approved for use in SL? I hope our ladies are not used as GUINEA PIG here.. OVER to you HE Health minister--

    Reply : 1       8

    Lankaboy Wednesday, 1 August 2018 12:26

    Sl does not have any now regulatory approval systems like other countries have. If I am right, any medical instrument or medicines which are approved by CE mark ( europe) or FDA(US) are allowed to use in SL.. Cuurentlyavailable Ablation device must have gone though myears of testing in Labs , animal models ..plus a lot of other bio compatibility test before FDA and CE mark certificates approvals.. Every materials and design issues has to be approved and make sure no harm for humans.I wonder how this present device get approved for use in SL? I hope our ladies are not used as GUINEA PIG here.. OVER to you HE Health minister--

    Reply : 1       3

    Lankaboy Wednesday, 1 August 2018 12:27

    Sl does not have any now regulatory approval systems like other countries have. If I am right, any medical instrument or medicines which are approved by CE mark ( europe) or FDA(US) are allowed to use in SL.. Cuurentlyavailable Ablation device must have gone though myears of testing in Labs , animal models ..plus a lot of other bio compatibility test before FDA and CE mark certificates approvals.. Every materials and design issues has to be approved and make sure no harm for humans.I wonder how this present device get approved for use in SL? I hope our ladies are not used as GUINEA PIG here.. OVER to you HE Health minister--

    Reply : 2       3

    abc Wednesday, 1 August 2018 19:42

    Menstrual engineering

    Reply : 5       4

    Rishan Wednesday, 1 August 2018 20:25

    We have to admire what these young lads have done . Don't pull their legs . If you ave any suggestions for improvement please drop a mail to their head . Many more inventions to come in the future .We have to support/encourage them.

    Reply : 2       10

    Hirron Fernando Friday, 3 August 2018 17:10

    You do not have to use invasive techniques as, what they claimed they found, This technique was available in many developed countries more than two decade ago. You don’t even need to use this technique any longer as many centres in the developed world use minimally invasive technique, such as selective arterial embolisation .Selective arterial embolisation can be done as a out patient setting.

    Reply : 5       5

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