Abstract: Objective: To investigate the characteristics of pressure injury related to medical devices, and to explore the relevant factors. Methods: A retrospective investigation was conducted in the incidence of medical device related pressure injury from 2014 to 2018, and collected the data about the characteristics of patients, the types of medical device, and the distribution, location and stage of pressure injury, and the above data was compared with the collected data from other pressure injuries. Results: Totally 134 cases of pressure injury and 39 cases of device related pressure injury were collected. The devices included oxygen inhalation device, blood pressure cuff, antithrombotic elastic socks, and so on. The sites of injury included bony protrusion and some non-bony protrusion, such as upper arm, thigh, finger. There were significant differences in the age, distribution of wards and score of Braden between the group with medical devices and other groups. The incidence of medical device-related pressure injury was 4.561 times higher in the emergency department than general ward. Conclusion: The incidence of medical device-related pressure injury increased year by year, and there were many related risk factors with it. Effective countermeasures should be formulated to prevent its occurrence.

Key words: medical device; pressure injury; characteristics analysis