Testing of Fenix Lighting Products

Мне выпал случай протестировать налобные фонари , производства Fenix. Предоставили их официальные представители Феникс в Украине - портал Fonarik.com

Всего были взяты три модели: HL20, HP10 и HP20. Первый позиционировался мной как запасной и лагерный свет, последние два как основной свет.

Начну с упаковки и комплектации. HL20 и HP10 поставляются в обычной вакуумной упаковке. В комплекте ремни для крепления на голову или каску, у HP10 дополнительно есть крепеж для кабеля, ремешок крепления (что бы фонарь не сползал на лоб) и съемный рассеиватель. Старший в этом ряду HP20 имеет собственный чемоданчик, в котором аккуратно уложен сам фонарь, инструкция, ремни крепления, прищепки для фиксации кабеля.

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Harness Hang Syndrome: Fact and Fiction

Joe Ivy – Texas Caver

Recently, there has been a lot of information and misinformation disseminated about Harness Hang Syndrome (HHS) resulting in the impression that some ascending systems cause HHS and others do not and that HHS is not of general concern. To clear up this confusion, we’ll cover the history of the testing that has been done, the results of those tests and the conclusions obtained. HHS, the rapid loss of consciousness followed by death due to hanging immobile in a harness, happens in ALL harnesses and ascending systems. Someone hanging immobile in a seat harness is a serious medical emergency that must be dealt with immediately.

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Suspension Trauma

Suspension trauma, or orthostatic intolerance, is a natural human reaction to being upright and immobile, where a complex combination of blood pooling in the legs and cardiorespiratory restriction leads to unconsciousness. It can be caused by suspension in a harness (deliberate or accidental), when trapped in a confined space, when secured to a vertical stretcher or litter - any situation where someone is forced to stay upright without the ability or room to move. If it is allowed to develop unchecked, it can be fatal in a very short time.

What is suspension trauma?

Suspension trauma is a perfectly natural reaction caused by the body being held in an upright position. It will happen to everyone, and you do not need to be ill or injured - simply standing still and unable to fall over.

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Risks and Management of Prolonged Suspension in an Alpine Harness

WILDERNESS & ENVIRONMENTAL MEDICINE, 22, 77–86 (2011)

REVIEW ARTICLE

Risks and Management of Prolonged Suspension in an Alpine Harness

Roger B. Mortimer, MD, From the Department of Family Medicine, UCSF-Fresno Medical Education Program, University of California at San Francisco, Fresno, CA.

Suspension trauma is a state of shock induced by passive hanging. Those who survive passive suspension are at risk for rhabdomyolysis. In a wilderness setting, one can see this in cases of persons suspended on rope by their harness. In a conscious person, leg movements work the venous pump to return blood to the central circulation. In the person passively hanging, blood pools in the legs leading to hypoperfusion of vital organs. In the experimental setting, passive hanging has led to unconsciousness in a matter of minutes. Based on a previous series of deaths on rope that included 7 after rescue, many authors have recommended nonstandard treatment for shock including keeping rescued patients upright or squatting for 30 minutes prior to laying them down. This recommendation assumes that sudden death is a risk from acute volume overload or exposure to waste products in the returning blood. This suggestion is not supported by the original series that demonstrated sudden deaths after rescue nor by modern understandings of physiology. Search and rescue teams and party members assisting a colleague suspended unconscious on rope should follow standard resuscitation measures to restore circulation to vital organs immediately.

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