Arjo was informed about an event with the involvement of system 2000 bathtub.It was reported that when the caregiver tried to lower the bath to the lowest positon, suddenly the bath stop functioning.The caregiver was not able to activate the bath function once again by pushing the lowering button on the control panel.After few seconds the bathtub lowered unintentionally about 30 cm to the lowest position with noise.As a consequence of the event the patient sustained back pain.On (b)(6) 2019 the bathtub was evaluated by the arjo representative.No visible damage was noticed.The hydraulic system was checked and tested in use, there was no oil leakage.The functional inspection showed that no malfunction was detected.During interview with customer it was confirmed that patient sustained back and hip injury.The hospitalization was required.Moreover, it needs to be emphasized that at the time of the malfunction, the device was in use for over 18 years (invoice date of claimed bath is year 2001).The instruction for use for system 2000 indicated that: "the normal useful life of this equipment, unless otherwise stated, is ten (10) years, subject to required preventative maintenance as specified in the operating and daily maintenance instruction, assembly and installation instructions and the spare parts catalogue." despite the effort made and test performed to duplicate the reported issue, arjo technician could not determine the cause.For this reason, the exact root cause cannot be explained.In summary, the device played a role in the event as it was used for patient therapy during the event.Although the device was up to its technical specification (as no malfunction that could have caused or contributed to the issue was detected), during the incident the device was reported by the customer to activate lowering function by itself and from that perspective did not meet its performance specification.The complaint has been reportable due to serious injury sustained by patient as an outcome of the event.
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