Watson Skin Graft Knife Handle (For Use With Blade 9940) - Non Sterile
£787.78 GBP inc. VAT
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£787.78 GBP inc. VAT
Available in three distinct models—Braithwaite, Cobbett, and Watson—these Stainless Steel Handles are designed for use with the sterile 158mm Skin Graft Blades to facilitate the harvesting of "Macro" or "Major" Skin Grafts. Each handle features an adjustable guard that allows for control over the maximum thickness of the graft, tailored to the skin characteristics at the donor site. The thickness can vary due to several factors, including the patient's age.
The precise thickness of the graft is influenced by:
1) The angle of contact between the blade and skin during harvesting;
2) The amount of pressure the operator applies to the handle during the procedure.
Mastering these elements is crucial for consistently achieving high-quality split thickness skin grafts.
The Watson Handle, developed by John Watson in 1960, addresses some of these challenges with its fixed, polished stainless steel guard and straightforward, rigid thickness adjustment. The rod remains stationary, without sliding or rotating, during graft collection. It passes eccentrically through the end-bearings, allowing the depth of cut to be adjusted by rotating the rod with a single knurled control knob, keeping the rod parallel to the blade settings. The precision fit of the bearings ensures there is no "play" during use. Although the rod's spontaneous rotation is minimal, a locking lever is included to prevent accidental changes to the setting. The fixed guard minimizes skin rolling but introduces significant "drag" as it does not move with the skin surface. Consequently, the edges of both the graft and donor site may become ragged, a condition that can be partially mitigated by using liquid paraffin for lubrication.
