Koehler Steven A, Luckasevic Todd M, Rozin Leon, Shakir Abdulrezzak, Ladham Shaun, Omalu Bennet, Dominick Joseph, Wecht Cyril H
Allegheny County Coroner's Office, 542 Fourth Avenue, Pittsburgh, PA 15219, USA.
J Forensic Sci. 2004 Mar;49(2):345-50.
Each year over 3 million new chainsaws are sold in the United States. The operation of these newer saws combined with the millions of older chainsaws in circulation results in over 28,000 chainsaw-related injures annually. The majority of the injuries involve the hands and lower extremities with less than 10% involving injuries to the head and neck regions. Deaths while operating a chainsaw are extremely rare. The most common hazards associated with chainsaws are injuries caused by kickback, pushback, and pull-in. Kickback is the most common and poses the greatest hazard. Kickback occurs when the rotating chain is stopped suddenly by contact with a more solid area throwing the saw rapidly backward toward the operator. The cause of most injuries can be traced to improper use of the saw or poor judgment on part of the operator. We present two fatal chainsaw deaths; one with an older style saw, and the other with a modern type. In both cases the victims died from fatal injuries received to the neck region from a chainsaw kickback. The first case involved a 49-year-old white male operating an older style chainsaw with limited safety features. The second case involved a 38-year old white male who was operating a newer model chainsaw equipped with a low kickback chain in an unsafe manner.
在美国，每年有超过300万台新电锯售出。这些较新电锯的使用，再加上数百万仍在流通的旧电锯，每年导致超过28000起与电锯相关的伤害。大多数伤害涉及手部和下肢，涉及头部和颈部区域的伤害不到10%。操作电锯时死亡极为罕见。与电锯相关的最常见危险是由反冲、后推和拉入造成的伤害。反冲是最常见的，也是最危险的。当旋转的链条与更坚实的区域接触突然停止时，就会发生反冲，使电锯迅速向后朝操作员方向飞去。大多数伤害的原因可追溯到电锯使用不当或操作员判断失误。我们呈现两起致命的电锯死亡案例；一起涉及老式电锯，另一起涉及现代电锯。在这两起案例中，受害者均因电锯反冲导致颈部致命伤而死亡。第一起案例涉及一名49岁的白人男性，他操作的是一款安全功能有限的老式电锯。第二起案例涉及一名38岁的白人男性，他以不安全的方式操作一台配备低反冲链条的新型电锯。
