Top 5 Magnificent Implants!!

In the present era, medical implants have advanced at an amazing pace. Many new technologies have been used in this field and operations such as radioactive seed implant, erections being created using hydraulics, plugging of a heart into a wall have been successfully performed. Here are the top 5 exquisite implants being picked. 5. Radioactive Seed Implantation: These implants are called brachytherapy. They are used to cure early stage cancer. This is performed by implanting small sized radioactive seeds into the prostate using a needle. These seeds emit radioactive radiations which are similar to the external radiations. These emissions attack the tumor. The radiation travels for a short distance and does not affect the region surrounding the prostate unlike radiotherapy. 4. Bionic Eye:

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Implantable telescope

Consider all living things human being is a strange creation in this world because he sense and analyze the problem. For human being many sense organs are there like eye, ear, tongue, nose and the skin. In these five parts eye is very important without eye very difficult to live in this universe. Eye is the one of the most important organs in the body to provide vision to the human being. Some time eye lose its sensitivity by seeing the unwanted lights, radiation, continuous watching of television these all factors severely affects the eye. Rather than these factors, due to age eye lose its sensitivity. Whenever eye loses its sensitivity to identify something, suddenly consult any nearest doctor otherwise it leads to a big problem. If eye problem is happen due to the over age then the correct treatment for this problem is implantable telescope. Why this implantable telescope is needed: Some of the human being having this problem, due to over age light not able to penetrate and touch the retinal surface so due to this eye does not provide a clear vision to the people. The age macular degeneration is affected due to this most of the…

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Are we bionic?

Bionic refers to application of biological ways and systems seen in nature to design and study the engineering systems. Bionic human would refer to human whose worn out parts can be repaired and refitted into the body. We cannot say that whole of a human body is replaceable but most of the parts can find replacements. There are replacements for human bones, teeth, vertebral discs. All these can be designed as per  persons size and age. The tailored parts can be drawn in few hours in a 3D printer to fit into the damaged parts. A device can even print a bone using a porous polymer that looks very real. The artificial bones may not be perfect and same as the natural bones.  To give strength  we can add titanium powder with a laser. This would creates pores on the bones and the pores would be of different size and depth making it look more natural and these pores give strength and stiffness to the artifical bones. There are ways to even improve implants enabling tissues and bones to regenerate. There are lab results showing cartilage growth through artificial ways in labs, By such a process even damages such as…

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Word's first appendix operation through the mouth

Non invasive surgery is getting more common and popular because of many reasons like less scars, less risk to patients life, faster recovery. All technologies needed are here and there is no reason not to use it. Probably appendix surgery is one of most frequent operation. Is is quite simple and seems obvious method – surgeon makes a direct cut through stomach tissue to reach appendix and removes it. But this method leaves a mark on a stomach for the rest of your life. Seems that things may change as there was a first appendix removal operation done through the mouth. This method definitely leaves no scars.

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Digital Signal Processing – Applications

Digital signal processing is the technique used to analyse various digital signals and obtain information form the same. It is also used for transfer of information from one place to another and also involves conversion in between analogue and digital signals. It finds its application in various areas ranging from broadcasting to medicine. Let us have a look at some of the applications of the same. Biomedical Applications: DSP is used extensively in the field of biomedicine. In it, the various signals that are generated by the different organs in the human body are measured in order to find information regarding the health of the same. For example, in case of electrocardiograms, the electric signals generated by the heart are measured. Similarly, the activity of the brain is monitored by electroencephalograms. Automatic Control: These days, many gadgets are available that can perform their tasks automatically. These devices contain various components that can take inputs depending on the surrounding conditions. These are conveyed to the control unit of the device where they are processed and the necessary action is taken. For example, a device like the thermostat increases its resistance in proportion to temperature. This can be used to stem the…

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Non-linear adaptive filtering using neural networks

Neural network signal filters are more adaptive filters than Wiener filters where resulting signal is a product of minimisation mean-square error, Wiener filter is linear filter which is adapted for some specific environment. But linear adaptive filters are limited when noise has Gaussian process pattern. So if significant Gaussian noise is present then there is need to use non-linear filters, which can deal with such noise. Also non-linear filters do not need mathematical analysis in order to calculate reference frame signal, what is not always ease to do. Non-linear adaptive filters may deal with this in two ways: improving learning efficiency and a broadening of application areas. A neural network is a massively parallel distributed processor that has a natural propensity for storing experiential knowledge and making it available for use. It resembles the brain in two respects: Knowledge is acquired by the network through a learning process. Interconnection strengths known as synaptic weights are used to store the knowledge.

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Adaptive ECG artefact noise cancelling using accelerometer

Electro-cardiographic examination may be performed not only from patients who is laying or sitting down peacefully, but also under stress conditions as some deceases may be detected when patient isn’t in the rest. For this ECG should be measured when patient is actively moving. We know that ECH signal is very weak among various artefacts. Motion artefacts are ones who is hard to filter out using regular methods. Various researches show that motion artefacts may be extracted by using accelerometers. Accelerometer reads motion pattern which is simultaneously analysed and filtered out from ECG using adaptive filtering algorithms including Least Mean Squares (LMS), Recursive Least Squares (RLS) As we mentioned – motion artefacts disturb the ECG signal so that it is almost impossible to recognize ECG pattern. And it is really hard to eliminate it and extract valuable information because artefact spectrum overlaps with ECG spectrum. And worse – noise spectrum changes all the time as movement may be not the same. So it is logical to measure the motion pattern with separate sensor – single or multiple axis accelerometer and use adaptive filtering technique to remove noise caused by motion.

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