Medical uses of cryogenics-cryosurgery, Physics

Medical uses of cryogenics
Low temperature have been used for long term preservation of blood, sperms, bone marrow and tissues.


Cryosurgery

The cryogenic methods used to destroy cells called cryosurgery. It has several advantages

(1) cause a little bleeding

(2) the volume of the tissue destroyed can be controlled.

(3) Little pain because low temperature desensitize nerves.

(4) Very short recovery.

 

2226_Cryosurgery.png


One of the first uses of cryosurgery is in the treatment of Parkinson disease. (Shaking palsy). This disease cause uncontrolled tremors in the arms and legs. It is possible to stop it by destroying parts of the thalamus of the brain that controls nerve impulse to the other part of the nervous system. The treatment undergoes while the patient is conscious.

Successful results were obtained in more than 90% of the cases but the development of new drugs makes the use of cryosurgery for medically untreatable Parkinson disease. Other common uses of cryosurgery are in tumors and warts.Cryosurgery is used in several types of eye surgery,

(1) In retina detachment

(2) the cryosurgical extraction of the lens.

 

2269_Cryosurgery 2.png

Posted Date: 10/1/2012 5:56:31 AM | Location : United States







Related Discussions:- Medical uses of cryogenics-cryosurgery, Assignment Help, Ask Question on Medical uses of cryogenics-cryosurgery, Get Answer, Expert's Help, Medical uses of cryogenics-cryosurgery Discussions

Write discussion on Medical uses of cryogenics-cryosurgery
Your posts are moderated
Related Questions
What do you mean by transformer ratio? A current of 2A is passed through a coil of 1000 turns to produce a flux of 0.5µwb. Determine the self inductance of the coil.

brewesters law

Regard as a volume of space in which the electric potential is 125,000 volts (at every point in the volume of space) and what is the electric field in that region of space? Ans

Define about the Modified Joule-Thomson? Container A of variable volume V controlled by a frictionless piston immersed in a bath at temperature T.  This container is connected

Some phenomenon based on scattering: (i) Sky looks blue because of scattering. (ii)  At the starting time of sunrise or sunset sun looks reddish. (iii) Danger signals are

why do we need degenerate semiconductor to fabricate a laser diode?

This assignment is intended to introduce you to the theory of gas turbine propulsion. The theory of the most simple gas turbine aircraft engine, the ideal turbojet, is detailed in

1 Ampere: 1 ampere current is supposed to be flowing in a conductor if one coulomb of charge flows across section of the wire in one second.


what is the tension in the string when the block is lifted at a steady speed when the weight weighs 4.5N and the distance is 90cm