Medical Devices

Biomedical Instrumentation has been a vibrant and productive  area of  research at t KMITL over the last three decades. In 1970, Prof. Pairat Thachayaphong, former president of KMITL, developed the first computed tomography (CT) device in Thailand. This research was conducted at Computer Research Center, KMITL, prior to the setting up of the Department of Biomedical Engineering . In 1980, Prof. Manas Sangworasil designed and developed the first commercial Patient Monitor. These units have now been actively employment in Thai hospitals for over 2 decades. Building on this history, the Department of Biomedical Engineering, has joined forces with the Faculty of Medicine at KMITL to design and develop the next generation of medical devices for Thai and international healthcare use.

In conventional x-ray, x-ray exposure parameters are controlled manually. In order to interface with computer, the digital controlled x-ray apparatus was designed and developed. The device can be interfaced with laptop or personal computer to control the operation of x-ray process. The unit can be applied with NDT system, medical imaging system and miniature Computed tomograph.

X-ray Tomography, this project applied the c-arm fluorography to function as computed tomography. The motor control module was installed in the c-arm pivot point to control the rotation of the x-ray source and detector. At one specific rotation angle, an image was captured and used a projection data to reconstruct the cross section image and the 3D model.

Miniature computed tomography was developed to be used in small-animal laboratory. The system uses portable dental x-ray apparatus as x-ray source. Our own-design x-ray detector is a series of a phototransistors coated with x-ray phosphor. The Miniature computed tomography was tested successfully to reconstruct the cross section image of phantom.

We designed the portable bone densitometer. The system uses the portable dental x-ray unit as the x-ray source and the dental digital x-ray detector. The x-ray images of index finger were taken two times; one with low energy and the other with high energy. The two images can then be used to compute bone mineral density and concentration.

A number of laboratory devices was also designed and developed. The centrifuge and blood-agitator are the shown for example.

Knee extraction device is designed and constructed to be used for rehabilitated patient . The system was controlled by computer to adjust the speed and movement angle and distance of the knee.

Smart wheelchair based on eye tracking was designed to help the disable patient. The patients can use their eye to control the direction of the  movement of wheelchair and to control some appliance such as fan, television, etc.

A low-noise Infant incubator was developed for infant. The system was designed using aerodynamic simulation to make the noise in the device as low as possible.