Medical equipment in an ambulance does not stay in place just because it is strapped with a belt or placed on a shelf. It is held by a dedicated mounting system — a rail, bracket, or frame — designed to withstand the force of a collision, not just the weight of the device at rest. It is this system, and not the mere fact of having a certified vehicle, that determines whether a defibrillator, ventilator, or oxygen cylinder will stay in its place during sudden braking.
In this article, we break down the topic into specific solutions — what types of mounts are used in the medical compartment, which ones fit which device, and how to check their condition in a vehicle that has been in service for several years, not just upon delivery from the manufacturer.
Why Equipment Mounting Determines Safety in an Ambulance
The medical compartment of an ambulance during normal driving is a workplace — the paramedic moves around, reaches for equipment, and changes its positioning. During a collision or sudden braking, these same items cease to be equipment and become moving objects.
The PN-EN 1789 (EN 1789:2020+A1:2024) standard requires that equipment mountings in the medical compartment withstand a test corresponding to ten times the acceleration of gravity — the so-called 10G requirement. The mechanics of this phenomenon are simple — a portable infusion pump weighing two kilograms, in a fraction of a second of a collision, loads the mounting point with a force close to twenty kilograms. For heavier equipment — a transport ventilator or an oxygen module — these values increase proportionally.
The 10G requirement does not only apply to medical equipment. The same standard specifies analogous requirements for the mounting of seats and seatbelt anchorages in the medical compartment. The reason is the same — whatever is not properly secured at the moment of impact ceases to be stationary, regardless of whether it is a device or a person sitting in a seat.
If the mounting cannot withstand this load, the device ceases to be life-saving equipment and becomes a freely moving element in a confined space where a patient sits on a stretcher and a paramedic works beside them. That is why the standard puts the topic of mountings on a par with seatbelts and body structure — as a hard safety requirement, regardless of how conveniently the equipment is arranged in the compartment.
Types of Mounting Systems in the Medical Compartment
Before we move on to specific devices, it is worth distinguishing the types of mountings themselves — because they determine what can be safely installed in a given place of the compartment in the first place.
Multifunctional Rails and Independent Mounting Points
A multifunctional rail is a profile, usually made of aluminum, mounted along the wall or ceiling of the medical compartment, to which various handles and brackets can be attached without interfering with the compartment structure itself. The lightweight, corrosion-resistant material has practical significance — every additional kilogram of the mounting structure is a kilogram subtracted from the available payload for equipment and supplies. The advantage of this solution is also flexibility — the position of the bracket on the rail can be moved for a specific team configuration without drilling new holes in the wall.
However, it is the way individual devices are attached to the rail that determines the real level of safety. In a well-designed system, each bracket has its own locking point, independent of adjacent ones — a failure or loosening of one mounting does not automatically release the others. In older solutions, where several devices shared one common mounting frame, damage to one element could release several pieces of equipment simultaneously.
Furthermore, tender documentation for medical compartments indicates that equipment should be mounted to removable mounting plates, rather than permanently screwed directly into the compartment wall. Such a solution facilitates both the replacement of the device and service access to the installation hidden under the lining, without having to disturb the entire compartment structure.
Quick-Release Brackets and Catches
Quick-release brackets are mounts designed for frequent removal and attachment of a device — typically a defibrillator, monitor, or electric suction unit. The release mechanism, most often in the form of a clearly marked, highly visible color-coded lever, allows the equipment to be detached from the base with one hand when it needs to be taken to a patient outside the vehicle — even when wearing protective gloves and in poor lighting.
Modern systems of this type divide the bracket into two parts: a universal base permanently screwed to the wall or countertop, and an interchangeable adapter matched to the specific brand and model of the device. Thanks to this, replacing a defibrillator with a different model does not require dismantling the entire mount — it is enough to change the adapter itself. The materials of such brackets are selected for resistance to disinfectants and biological fluids, as a mount in the medical compartment is cleaned just as often as the rest of the equipment.
Stretcher Mountings and Loading Systems
The mounting of the main stretcher works differently than the brackets for other equipment, because it must simultaneously hold the stretcher in place while driving and allow it to be quickly pulled out and pushed in with each patient transport.
A typical system of this type consists of several cooperating elements:
- a front catch that locks the stretcher’s wheels when pushed in;
- a rear clamping rail, mounted directly to the stretcher frame — both parts can be removed, which facilitates washing and disinfecting the compartment floor;
- guide rollers on the front edge of the stretcher, which maintain the correct path during loading and reduce the risk of the stretcher tilting relative to the rail.
In electrically powered versions, the system itself lifts and guides the stretcher into the compartment, reducing the manual lifting required by personnel.
The loading system must be matched to a specific stretcher model — mountings from different manufacturers are not always fully interchangeable. It is worth verifying this compatibility at the equipment selection stage, and not only when trying to replace the stretcher with a different model in the future.
Equipment Mounting by Device Type
The type of mounting is selected for a specific device — its shape, weight, and the frequency with which it is removed.
| Device | Typical Mounting Solution | What to Pay Attention To |
| Defibrillator / monitor | Quick-release bracket on a countertop or wall | Ability to rotate towards the patient without removal |
| Transport ventilator | Slide-in rail or quick-release bracket | Proximity to the oxygen installation and cables |
| Infusion pump | Slide-in rail or bracket at eye level | Readability of the display without leaning over |
| Oxygen cylinder | Snap-in bracket or clamp with a tension belt | Access without dismantling adjacent equipment |
| Main stretcher | Dedicated loading system (catch + rail) | Compatibility of the mounting with the stretcher model |
| Scoop stretcher / vacuum mattress | Separate mounting point in a storage compartment | Prohibition of loose transport between runs |
Defibrillator and Vital Signs Monitor
A defibrillator and vital signs monitor are pieces of equipment that are basically removed during every call to a patient outside the vehicle, which is why the dominant solution is the quick-release brackets described above — most often on a worktop or on the wall within reach of the paramedic working at the head of the stretcher. Some systems additionally allow the device to be rotated towards the patient without taking it off the bracket, which is important when reading parameters while driving, and not only when stationary.
Ventilator and Infusion Pump
A transport ventilator leaves the vehicle less often than a defibrillator, which is why, apart from quick-release brackets, mounts in the form of a slide-in rail are also encountered — the device is slid from the top onto a profile attached to a pillar or wall, similar to some electric suction units. In some configurations, the ventilator is mounted directly on the stretcher frame instead of the compartment wall — the choice depends on whether the team works mainly at a fixed station or needs to transport a mechanically ventilated patient outside the ambulance as well.
Infusion pumps are mounted similarly, although just as often on a separate, adjustable IV pole attached to the stretcher — a solution known from hospital wards, transferred to transport conditions. The mounting height should allow reading the display and infusion rate without leaning over the device, especially while driving in traffic.
Oxygen Cylinder and External Storage Modules
Oxygen cylinders are secured differently than the rest of the equipment, because apart from the 10G load, there is the risk associated with the gas pressure inside. Typical solutions:
- spring-loaded snap-in brackets, in which the jaws embrace the stem of the cylinder valve and lock in one motion;
- brackets with a hinged clamp and a tension belt, which additionally dampen vibrations and rattling while driving;
- for larger cylinders — frames with two mounting points and adjustable spacing, matched to the diameter of a specific tank.
A portable cylinder accompanying the team outside the vehicle requires separate attention — it needs its own, easily accessible bracket in the paramedic’s working area, independent of the main cylinders stored in the external storage compartment. Access to the main cylinders should be possible without dismantling the adjacent equipment of the storage compartment — this is important both for quick replacement between runs and for periodic inspection of the mount’s condition.
Main Stretcher and Scoop Stretcher
The main stretcher is mounted in the manner described in the previous section — through a dedicated loading system. Scoop stretchers, vacuum mattresses, and other auxiliary equipment that do not travel in a fixed place are usually stored flat in a separate, narrow wall compartment with its own mounting points, rather than resting against other equipment or being transported loose. In the event of a collision, such equipment, if unsecured, becomes a freely moving element just like unsecured electronic apparatus.
Verification of Mounting Safety — Not Only Upon Purchase
The 10G certificate confirms that the mounting met the requirements of the standard at the time of testing and at the time of vehicle production. It says nothing about the condition of the mounting system after two or five years of daily operation — and vibrations, frequent removal of equipment, and pressure washing of the compartment eventually weaken even well-designed solutions.
Periodic Inspection in a Vehicle in Service
In standard ambulance service practice, the inspection of mountings usually covers:
- looseness in rails and brackets caused by vibrations while driving;
- uneven operation of the guides and rollers of the stretcher loading system;
- condition of the springs and levers in quick-release catches;
- tightness and closing of jaws or belts at oxygen cylinder mountings;
- tightening of bolts and screws fastening the rails and mounting plates to the compartment structure.
Each of these irregularities — unusual resistance when fastening the catch, audible play when braking, difficulty closing the cylinder jaws — requires evaluation by a person familiar with a given system, rather than being put off until the next periodic technical inspection. The results of such inspections are worth recording in the vehicle’s service documentation, just like inspections of the oxygen or electrical installation — this allows tracking whether a given element wears out faster than the rest of the compartment structure.
Manufacturers of ambulance equipment mounts are increasingly testing their products also according to dedicated industry standards from outside Europe, such as the American SAE J3043 for medical equipment mounts or SAE J3027 for stretcher mounting systems. The documentation of such tests, alongside the EN 1789 certificate, is worth keeping in the vehicle’s records and checking during every major technical inspection.
Consequences of Improper Mounting During a Collision
Unsecured or poorly maintained equipment during a collision or sudden braking does not stop together with the vehicle — it continues to move at the speed it had before the impact until it encounters an obstacle. This obstacle could be the compartment wall, other medical equipment, or a person in its path — a patient on a stretcher or a paramedic working beside them, often without the ability to react in the fraction of a second in which it happens.
The greater the mass of the device and the less functional the mount, the more serious the consequences of such an event can be for the people in the compartment. That is why the inspection of mountings should be treated with the same seriousness as the effectiveness of the brakes or the operation of the unfastened seatbelt warning system — it is a part of the same responsibility for vehicle safety.
FAQ
Most often by a spring-loaded snap-in bracket, in which the jaws embrace the stem of the cylinder valve, or by a bracket with a hinged clamp pressed by a tension belt — both solutions allow the cylinder to be removed and attached with one hand, while limiting the rattling and shifting of the tank while driving. Larger cylinders are additionally mounted in frames with adjustable spacing matched to their diameter, and a portable cylinder accompanying the team outside the vehicle requires its own, separate bracket in the paramedic’s working area.
The stretcher mounting must simultaneously hold a heavy weight in place while driving and allow it to be quickly pulled out and pushed in with each patient transport, which is why it relies on a dedicated loading system — a front catch and a rear clamping rail. Small equipment, such as a defibrillator or infusion pump, is mounted to individual brackets or multifunctional rails, selected for the frequency of removing a given device, and not for loading and unloading.
It continues to move at the speed prior to the impact until it encounters an obstacle — the compartment wall, other equipment, or a person in its path. This is exactly the scenario addressed by the 10G requirement of the EN 1789 standard.
Through regular inspection for looseness in rails and brackets, operation of guides and rollers of the stretcher loading system, condition of springs and levers in quick-release catches, and the tightness and closing of jaws or belts on oxygen cylinder mounts. Any unusual resistance, looseness, or difficulty in locking an element should be reported for evaluation by a person familiar with a given mounting system and recorded in the vehicle’s service documentation, instead of waiting for the next periodic inspection.
