Blood Contacting Essay

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Strategies for Enhancing the Haemocompatibility of Blood Contacting Medical devices
Tom O’Neill 12156949
Biomedical Engineering
Scope
There are various different types of implantable blood contacting devices on the market today. These are aids for the body to carry out specific functions when needed. These devices are in the class II and class III brackets and include stents, catheters, haemodialysis and extracorporeal life support devices. A stent is a small mesh tube used to treat weak or narrow arteries. A Catheters is type of medical device that can be inserted into the body for treatment of diseases or carry out a surgical procedure. Haemodialysis is a process that removes wastes, such as urea, from the blood. Extracorporeal life support devices insert cannulation into the blood vessels of patients, aiding respiratory and cardiac failure. The use of biomaterials in medical devices can stimulate harmful body responses. These include rapid thrombogenic action.
Stents:
A stent is a small mesh tube that's placed in narrow or weak arteries as a treatment. Arteries carry blood away from the heart …show more content…

One end of the catheter remains outside the skin. Medicines can be given through an opening in this end of the catheter. Passing the catheter under the skin helps keep it in place better, lets you move around easier, and makes it less visible.
Implanted port: This type is similar to a tunneled catheter but is left entirely under the skin. Medicines are injected through the skin into the catheter. Some implanted ports contain a small reservoir that can be refilled in the same way. After being filled, the reservoir slowly releases the medicine into the bloodstream. An implanted port is less obvious than a tunneled catheter and requires very little daily care. It has less impact on a person's activities than a PICC line or a tunneled

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