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Vehicle rescue instructors should remind participants in your training classes, especially if they are EMS-oriented responders, about how they can ‘read’ a seatbelt pretensioner system and may be able to get a sort of second opinion about whether their patient was or was not wearing their seatbelt.

Our scenario is that the frontal airbags have deployed. An airbag spiderweb is evident on the passenger’s side of the windshield. As you get closer, we see no spider web on the windshield on the driver’s side; this is a good thing.

Now how can we ‘read’ the seatbelt pretensioner system to see who was or was not wearing their seatbelt? There is some evidence the pretensioner system may reveal that can help us verify what we find when we make patient contact.

A common design of seatbelt pretensioner is integrated into the take-up spool of the seatbelt recoiler.  With the trim removed, we can clearly see the actual pretensioner unit of this specific vehicle at the recoiler mounted to the base of this B-pillar.  Also note the familiar yellow color wiring sheath that is the most common color used by automakers to identify airbag and pretensioner wiring circuits.

As we look at the empty driver’s seat in our scenario, we can confirm that the driver occupant of this vehicle was wearing their seatbelt when the crash occurred. Why do we know this and how can the pretensioner system tell us?

Pretensioners mounted to the recoiler unit typically lock the recoiler so it will not retract after the pretensioner deploys. The slack in the belt as shown here, once it is unbuckled, is your clue that it deployed while being worn by the occupant. It will not retract due to the take-up recoiler locking so it had all kinds of slack in it when the driver took it off.

On the passenger side however, since this seatbelt was not bucked at the moment of the crash, you would see that it is now drawn tight along the inside of the B-pillar. Either no occupant was here or if there was a passenger, this occupant was unbelted at the time of the collision.

‘Reading’ a seatbelt pretensioner system might just be a good “second opinion” for you to note when you are assessing mechanism of injury for your patients.  My experience has been that the intoxicated patients tell you they were always wearing their seatbelt.  With pretensioners, you’ve got something else to help you assess if they are telling you the truth or stretching their law-abiding status a bit.

Courtesy of Rob Moore from University of Extrication

Training

2022 Ford Maverick: Vehicle-Specific Body Structure

The 2022 Ford Maverick loaned to the Hurst folks was the star of the extrication show at FDIC. The Maverick was no match for the Hurst tools and

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Ford Maverick

The 2022 Ford Maverick loaned to the Hurst folks was the star of the extrication show at FDIC. The Maverick was no match for the Hurst tools and the man that makes these vehicles available, Dennis Lark, was pleased with the destruction. The Maverick is available as an ICE (Internal Combustion Engine) vehicle and an FHEV (Full Hybrid Electric Vehicle). Below is an image from Ford’s 2022 Maverick Hybrid Emergency Response Guide.

Boron Extrication

If you notice, the Hybrid battery pack is on the passenger (RHS) of the vehicle. If you take a look at the image below, you can see the rocker on the RHS is reinforced to protect the battery pack. You can find more information about the different steels used in the rockers and floor pan here.

A-Pillar (Hurst Booth FDIC 2022)

FORD Maverick

Photos by Chief Toranze Lee

B-Pillar (Hurst Booth FDIC 2022)

Photos by Chief Toranze Lee

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Training

Object on a Vehicle

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An object on a Vehicle

A simple training scenario that only requires a vehicle (that you do not need to cut, yet) and an object to lift. Great objects include large tree sections, utility poles, and concrete pipes. These objects can be easily found in most cities, maybe even in your Department of Public Works yard.

Take a look at the scenario that Connecticut Custom Fire Training LLC. put together a month ago at one of their training classes.

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Training

York County Vehicle Technician Class 2021

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York County Vehicle Technician Class 2021

Take a look at the York County Vehicle Technician Class 2021. It’s a 24-hour Vehicle Rescue Technician program that includes classroom and practical training which applies to those incidents where commercial or heavy vehicles are involved, complex extrication processes will have to be applied, or multiple uncommon concurrent hazards are present, or that involve heavy machinery or more than digital entrapment of a victim. Emphasis will be placed on heavy vehicle lifting and stabilization, utilization of heavy towing and recovery services, and complex patient packaging and removal techniques.

Pictures (by John E. Burruss)

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