Faulty equipment, malfunctioning machinery, electrical problems, and medical radiation incidents were among almost 950 reports logged across the health service in the past two years.
HSE records show 49 equipment-related cases where somebody needed medical treatment and almost 150 where an injury or illness required first aid.
A further 157 reports involved injuries that did not need first aid.
More than 200 other incidents were classified as near misses, while a small number of cases – fewer than five – were classed as Category 1 or “extreme” on the health service reporting system.
The HSE said most incidents that resulted in harm were staff-related, while most no-harm or near-miss incidents involved patients and service users.
A breakdown of cases showed 74 involving electrical issues while 13 were linked to medical radiation procedures.
The documents showed the highest number of cases, 783 in total, were classified as issues with “mechanical components.”
There were a further 12 cases involving fire, 23 linked to medications, and 17 that were categorised as “care management.”
A small number of incidents were also logged involving surgical procedures, blood products, and chemical products.
However, the HSE said that where case numbers were five or fewer, it would not provide exact figures in case individuals could be identified.
A separate breakdown of the 948 cases by “problem” showed the overwhelming majority were categorised as “defective equipment.”
Other cases were linked to the failure or malfunction of equipment, with a small number of cases – fewer than five – classified as “diagnostic exposure greater than intended.”
The HSE said harm was not always directly attributable to equipment issues and said the data should be considered in light of limitations around incident classification and reporting.