Ventilators get the tender line. The suction units, infusion stands, airway trolley and crash trolley that make a ventilated bed space work usually do not. How to count them, specify them and stop them failing in a year.
A ten bed intensive care unit gets funded, the ventilators and monitors are tendered, and six months later the unit opens with two dressing trolleys borrowed from the surgical ward and one crash trolley for the whole floor. The ventilator was the visible purchase. Everything a ventilated patient needs around them was assumed to already exist.
It does not exist, and it is not cheap in aggregate. Counted properly across ten bed spaces, the mobile equipment around the ventilators is a meaningful share of what the unit costs to equip. Here is how to count it before the tender closes rather than after.
Fixed services come from a pendant or bed head unit and are planned with the building. Everything below moves, and everything below has to be bought.
Counting trolleys per bed produces the wrong answer. Count them by the function they serve and by how far a nurse has to walk to reach one.
| Trolley | How to count it | What it has to carry |
|---|---|---|
| Emergency or crash trolley | One per clinical area within reach in seconds, not one per unit | Defibrillator platform, CPR board, drug drawers, oxygen cylinder holder, IV pole, tamper seal |
| Difficult airway trolley | One per unit, standardised with theatre | Laryngoscopes, supraglottic devices, bougies, cricothyroidotomy set, in a drawer order everyone knows |
| Medicine trolley | One per nursing team per shift | Locking drawers with adjustable dividers, sharps container, waste bin, sanitiser |
| Procedure or line trolley | One per two to three bed spaces | Sterile field surface, ultrasound if used, drapes, waste |
| Dressing trolley | One per two to three bed spaces | Two easy clean shelves, nothing else |
| Linen and waste trolleys | By ward layout and disposal route | Segregated bags, foot operated lids |
The airway trolley is the one worth arguing about. If the intensive care airway trolley is laid out differently from the theatre airway trolley, the anaesthetist who came running from theatre is opening drawers in the wrong order during the worst two minutes of the day. Standardise the layout across the hospital, then buy trolleys that can be laid out that way.
Trolleys are treated as furniture in most tenders and evaluated on drawer count. The things that determine whether they are still in service in five years are not on that list.
Castor diameter decides whether the trolley crosses a lift threshold or a settled floor joint. Small hard castors stop dead at a 10 mm step, and the nurse then lifts the loaded end. Specify diameter, specify a tread material that does not mark the floor, and specify that at least two castors brake and that the braked pair is diagonal rather than at one end. On a loaded crash trolley, brakes at one end only will let the trolley pivot when someone leans on it.
Castors are also the first thing to fail in Bangladeshi wards, and the cause is almost always the cleaning regime. Mopping solution runs into an unsealed bearing, and chloride corrosion does the rest inside a monsoon season. Ask what the bearing seal is and whether replacement castors are stocked locally, because a trolley with one seized castor gets pushed against a wall and never comes back.
IEC 60601-1 sets out the stability tests that mobile medical equipment has to pass, including tilt on a slope. A trolley with a defibrillator on a raised platform, a full oxygen cylinder on one side and all its drawers open is a different object from the empty one that was demonstrated. Ask for the loaded stability condition, and check that the cylinder holder is on the base rather than high on the frame.
Everything has to survive daily disinfection. Rolled edges rather than welded lips, no exposed fasteners on the working surface, drawer liners that come out and go through a washer. Drawer runners are the second most common failure after castors: a runner rated for light office use fails within a year in a drawer holding ampoules and steel. Integrated sharps containers and a foot operated waste bin remove two more objects from the floor around a bed space, which matters in the crowded units most Bangladeshi hospitals actually run.
A procedure trolley that cannot be raised to the height of the bed platform, with the bed at working height, is a trolley the nurse stoops over for twenty minutes. Check it against the beds you have actually bought, not against a standard bed height.
Piped vacuum fails, and it fails at the point where a plant room pump trips during a load transfer. Every unit needs portable units that work independently, and they need to be specified on flow and vacuum rather than on the size of the jar.
Saikang's SK-EX123, for example, is quoted at 20 L/min with 680 mmHg vacuum from an oil free pump, with two 2500 ml glass collection bottles and foot switch control. The oil free pump is the specification point that matters for a hospital: an oil lubricated rotary vane pump needs oil changes nobody will do, and it contaminates the exhaust into a patient area. The foot switch matters because the operator's hands are occupied. Glass jars matter because they are the only ones you can genuinely see the level in when the ward light is poor.
The failure mode to design against is overflow. Suction pulled through an unnoticed full jar goes into the pump, and a pump full of secretions is a replacement rather than a repair. Specify an overflow protection device, tell the unit it exists, and stock the filters. Piped and portable suction at the bedside is covered in more detail elsewhere on this site.
Count the socket outlets a ventilated bed space needs by listing every plug: ventilator, monitor, four to six pumps, warming device, portable suction, bed, feed pump, plus a spare for the echo machine or the portable X ray. The number is always higher than the number drawn on the services layout, and the difference appears as a domestic extension board on the floor within a week of opening. Sockets are cheap during first fix and expensive afterwards, so this is the argument to win before the services design is frozen.
Which outlets sit on the UPS and which on raw generator supply is a separate decision and should be marked on the socket faceplates, not left to memory. A ventilator on a non UPS outlet is a design defect that no amount of staff training fixes.
The mobile equipment around a ventilator is worth tendering as a single lot, described by function and quantity, with the standardised layouts attached. Splitting it across a furniture lot and a critical care lot is how a unit ends up with crash trolleys that do not take the defibrillator it bought. Ask bidders to quote the replacement castors, drawer runners and suction filters at the same time, because those prices are the ones you will be paying in year three.