On a side note regarding procurement...
Savvy hospitals develop agreements with suppliers/manufacturers to establish a standardised product range. This is beneficial to the Trust to ensure that the whole Trust uses the same equipment, competency of the devices and training is managed effectively. These are reviewed with price and performance being part of the renewal agreement.
Worst case scenario is having various equipment somewhat doing the same job but no one knows the ins and out of the devices capabilities or limitations.
Also, I believe that a well managed hospital/trust has the ability to negotiate these contracts and deliver cost savings beyond those of the established 'hubs' set up to offer a generic one price for all. These hubs offer a generic price but they may not be what the Trust use and the supplier is desperate to keep their market share, rightly or wrongly. Also, these hubs require a subscription for their services... Another add on cost. For example, NHS Supplies has an online catalogue, yet another tier of procurement based on a national agreement...
Rant over..