Future development of eye wash and eye washing – Looking Ahead with Proper Eye Irrigation

EMERGENCY SHOWER & EYEWASH SPECIFICATION and INSTALLATION
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February 27, 2018

Future development of eye wash and eye washing – Looking Ahead with Proper Eye Irrigation

Future development of eye wash and eye washing – Looking Ahead with Proper Eye Irrigation

A prime example of these advancements is the eyewash. During the first half of the 20th century, the commercial eyewash was invented. Urban legend has it that an industrial plant manager devised the first “steady stream” eyewash by adapting two drinking fountain bubbler heads and valves mounted to opposing sides of a sink. When activated, the streams formed a double arch that.

aimed water from the outer perimeter of the sink to its center. An injured victim could place their face into the double streams and irrigate both eyes simultaneously. It was a great concept and it took the safety industry to a new level over the ensuing half century. There was, however, one limitation to this early prototype. Irrigating with streams that contact the eye at its outer canthus, or corner, and flow inward toward the nose is diametrically opposed to the way we healthcare professionals irrigate eyes!

Workplace safety is a growing concern to employers. Stringent regulation, increased employee health education and awareness have led to advancements in processes, safety procedures and first-aid protocols to better treat the injured. This movement has had a profound impact on the emergency equipment industry.

THE LACRIMAL SYSTEM

To comprehend the logic behind the medical community’s approach to eye contamination situations requires a passing understanding of the eye’s lacrimal system. The human eye is equipped with an automatic lubricating and cleansing mechanism called the lacrimal system. It consists of the lacrimal gland, which produces tears, the ducts that channel tears from the lacrimal gland to the ocular surface and the lacrimal puncta, which are drains that channel excess fluids out of the ocular surface. Importantly, the lacrimal puncta drain excess fluids directly into the nasal cavity. This process is the reason your nose runs when you cry.

The eyelid also plays a key「ole. As we blink, the eyelid wipes the cornea and pushes contaminants and excess fluids toward the lacrimal puncta or the ocular surface’s drains. If a hazardous material is introduced into the eye, nature’s own cleansing mechanism can serve to force the contaminant into the nasal cavity, where it can be passed into the lungs or swallowed. Clearly, this is not ideal for any victim.

What kind of eyewash station do you need on your jobsite?

Your needs may vary, depending on your location. Does your job site have access to running water? Is it a temporary construction site? Or are you concerned about installing permanent eyewash stations in a facility like a warehouse or plant? A plumbed unit is required when the station must remain in a fixed unit that has access to a continuous source of potable water. Portable eyewash stations are a great alternative to plumbed eyewash stations when there is no access to water and if it needs to be moved at a moment’s notice. When you use a portable eyewash it is also important to use a water additive to ensure flushing liquid remains clean and ready to be used.

MEDICALLY ACCEPTED EYE IRRIGATION

Accordingly, the medical profession teaches and practices eye irrigation by introducing the flushing fluid at the inner corner of the eye – adjacent to the nose – and letting it run across the eye to the outer edge. In effect, we irrigate by moving the fluid away from the lacrimal puncta. This is opposite the flow direction of traditional plumbed-in eyewash products. Pushing contaminants toward the nose not only risks introducing them into the nasal cavity, but can also introduce the same contaminant into the other eye.

The best method of irrigating eyes in a commercial or industrial setting is to use plumbed-in products that mirror approved medical protocols. Inverted eyewash streams versus the traditional eyewash contact the eyes at the inner canthus, adjacent to the bridge of the nose. Contaminants are thus swept to the outer edge of the eye and then into the eyewash bowl.

Do You Need an Eyewash Station?

According to the recently updated Globally Harmonized System of Classification and Labeling of Chemicals (GHS), you must provide a safety data sheet and emergency station if workers may come in contact with hazards that are labeled as:

  • Corrosive
  • Toxic
  • Irritant
  • Health Hazard
  • Explosive
  • Flammable
  • Oxidizing
LAMINAR FLOW EYE WASHES
The use of laminar flow design in the eyewash streams is another great idea.
A laminar flow is one in which there is an absence of turbulence, because the stream is “built” in layers. Turbulence or inconsistencies in the flow stream can strike the eye as a change in total pressure, making the victim much less comfortable during the flushing process. The best approach is to provide an even, comfortable, predictable stream height and circumference. This can be accomplished using laminar design principles.
Times are changing, as are the protocols and practices of emergency equipment providers. Irrigating eyes in a manner that is consistent with medical procedures is not only the right thing to do, it shows consideration of an employee’s comfort and safety.
Additional features that set Runwangda  apart from any other eyewash on the market:
• LAMINAR FLOW FOR GREATER STREAM CONSISTENCY
Laminar flow creates an even, comfortable, predictable stream height and circumference in the eyewash streams due to the absence of turbulence, as the stream is “built” in layers.
• “ZERO VERTICAL VELOCITY” ENGINEERING
Runwangda eyewash streams are almost vertically oriented, causing them to “stall” at a prescribed height. This action causes a slight puddling of the flow in midair and occurs at the optimal contact point with the eye, making for a more pleasant and effective irrigation experience.

2 Comments

  1. Plumbed Eyewash Station | Plumbing Tips Everyone says:

    WHAT IS THE CONSENSUS APPLICABLE REGULATION???

    • admin says:

      ANSI/ISEA Z358.1-2014 is a voluntary national consensus standard that OSHA refers employers to as a recognized source for guidance. It helps users select, install, operate and maintain emergency eye wash and shower equipment. The standard is divided into five sections and each section addresses minimum performance and use requirements, as well as installation, testing procedures, maintenance and training requirements. OSHA often uses ANSI/ISEA Z358.1-2014 as a guide during inspections and may elect to issue penalties based on non-compliance.

      To ensure that eyewash stations and showers are always ready when needed, it is important that the requirements for test procedures and maintenance set forth in ANSI/ISEA Z358.1-2014 be followed. The requirements for testing and maintaining eye, eye/face washes and showers are based on the manufacturer’s instructions and ANSI protocols. Generally, the manufacturer’s instructions state that the devices should be inspected tested and the results recorded weekly. Individual owners’ manuals should be looked at for the specific manufacturer’s guidelines.

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