actuator deep vein thrombosis prevention device design development 
To : Mr. Shamsul Zahari bin Shahidin
From: Noor Hasliza Binti Abdul Rahman
Date: April 19, 2013
Subject: Progress report (from January 22 – April 26, 2013): design development of deep vein thrombosis (DVT) prevention device.
Introduction
The development of this device is basically to wrap around the forearm of the patient and it will provide accumulated pressure around the forearm. This device is non-pneumatic thus it will not use any air pressure or pump to operate. Current device use in the market of biomedical department is intermittent pneumatic compression (IPC) device, it use air pressure to compresses the limbs. Theoretically, an ideal compression device will compress sequentially (distal to proximal) and will have a pressure gradient (highest pressure distal and lowest pressure proximal). This is where an appropriate solution of using non-pneumatic device will wrap and tighten around the patient forearm due to the rotation of few wheels. Each of the wheels will be holding by its own strap as it will be connected together. Noted here each wheel will have totally difference circumference and will create different pressure.
Work completed from 22 January to 26 April 2013
Up until this date, there are few progresses I have done for this project. Firstly, designing of the device is completed and the design is for the segmentation section that use as a gearing system for the device. Followed by the basic calculation on how to get the exact rotational ratio for the gearing system. Other than that, costing plan and also selection for hardware is been finalized.
Work to be complete
Next, the device needs to be in prototype so that the testing and analyze of the device can be done. A final calculation also need be done so that a suitable motor can be applied.
Problem encountered
Greatest problem that I face for this project is the limitation in term of source of references. Other than that, to get a suitable motor that use as a rotational supply for this device
From: Noor Hasliza Binti Abdul Rahman
Date: April 19, 2013
Subject: Progress report (from January 22 – April 26, 2013): design development of deep vein thrombosis (DVT) prevention device.
Introduction
The development of this device is basically to wrap around the forearm of the patient and it will provide accumulated pressure around the forearm. This device is non-pneumatic thus it will not use any air pressure or pump to operate. Current device use in the market of biomedical department is intermittent pneumatic compression (IPC) device, it use air pressure to compresses the limbs. Theoretically, an ideal compression device will compress sequentially (distal to proximal) and will have a pressure gradient (highest pressure distal and lowest pressure proximal). This is where an appropriate solution of using non-pneumatic device will wrap and tighten around the patient forearm due to the rotation of few wheels. Each of the wheels will be holding by its own strap as it will be connected together. Noted here each wheel will have totally difference circumference and will create different pressure.
Work completed from 22 January to 26 April 2013
Up until this date, there are few progresses I have done for this project. Firstly, designing of the device is completed and the design is for the segmentation section that use as a gearing system for the device. Followed by the basic calculation on how to get the exact rotational ratio for the gearing system. Other than that, costing plan and also selection for hardware is been finalized.
Work to be complete
Next, the device needs to be in prototype so that the testing and analyze of the device can be done. A final calculation also need be done so that a suitable motor can be applied.
Problem encountered
Greatest problem that I face for this project is the limitation in term of source of references. Other than that, to get a suitable motor that use as a rotational supply for this device