Monday, March 10, 2008

Making a magnet implantable.

In order to prevent the body from rejecting an implanted magnet, it must be coated with a biocompatible material. In the past, others used implant-grade silicone. The magnet was dipped or the material was applied via a mold, completely encasing the magnet. (see Magnetic Implant: Development and Updates.)

Unfortunately, both the strength of silicone and the method used to apply it resulted in almost all of the implants failing. Silicone proved simply too soft to guarantee containment. In Shannon Laratt's final article about the implants he suggests immediate removal of any silicone coated magnets, as he their eventual failure is inevitable.

Encasing the magnet in Teflon or glass would be an option, but both those methods are currently beyond my means. Titanium or other implant grade metals could also be a possibility. Some of these methods require intense heat, which can demagnetize and damage a magnet.

The most attractive option (to me at least) is a Parylene coating. Parylene is a polymer which is applied in vapor form at room temperatures in a vacuum. Parylene is biocompatible and has been used for years to coat medical devices for implantation.

Right now the plan is to get magnets coated, test them out, and eventually have one implanted.

2 comments:

Chagul das said...

After you've been in the waves for a while, you've adjusted to expect that the world around you is rising and falling at a fairly predictable set of frequencies. When you get back onto land, that expectation continues, and so what you're actually feeling is the _absense_ of that motion -- which is coming through as motion in the opposite direction. After a short time you readjust and that sensation goes away.
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Chagul das said...

Everything that reminds you of Mawlana, of Prophet (upon him blessings and peace), of Allah and His Awliya, is from the angels or from Allah or His Prophet or His Awliya. However, rather than just witnessing signs we are called upon to come closer to Allah through obedience, so focus on acts and in sha Allah you will see progress.
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