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The Dedicated Ophthalmology Referral Practice |
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Cautery and Diathermy Electrical currents have been used therapeutically almost since electricity was first discovered. Today, low voltage direct currents are used to heat simple ‘hot-wire’ cautery devices, while Operating Theatre diathermy machines generate higher-frequency (500kHz) electrical signals which, when passed through a patients body via contact-electrodes of vastly dissimilar size, create intense heat at the smaller electrode. This heat-energy is used for both cutting and coagulation. Conventional diathermy and cautery are characterised by the fact that both involve the application of a heated electrode to the surgical site.
Radiosurgery Radiofrequency Surgery has the advantage in that the electrodes remain cold. Very high frequency radio-waves of 4.0MHz are transmitted between a plastic-coated antenna, and a small needle electrode held by the surgeon. Heat is induced only in the cells that are in contact with the needle electrode, and is sufficient to vaporise moisture within those cells, thus causing cell destruction and dividing the tissue. The antenna does not need to be in contact with the patient at all. Radiosurgery has many Veterinary applications, including skin incisions, tumour dissection, organ biopsy, gingivectomy and epilation. Veterinary Radiosurgery is safe, straightforward and highly effective. Visit the Ellman UK website to find out more. www.ellmanuk.co.uk
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Contact us at: Ellman International (UK) Ltd t: 01604 589 928 f: 01604 759 098 e: radiosurgery@ellmanuk.co.uk
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