The aim of this study was to evaluate the efficacy and safety of electret static physiotherapy film developed by Beijing Youshilin science and Technology Development Co., Ltd., to treat acute soft tissue injury by sticking to the affected area

Design of randomized, open, parallel controlled non inferiority clinical trial.A total of 60 patients were included in the trial, including 30 subjects in the experimental group and 30 subjects in the control group. The experimental disease was acute soft tissue closed injury.

Inclusion Criteria:

• Patients with acute soft tissue injury diagnosed by Western Medicine
• Ability to communicate well with the researcher and comply with the requirements of the validation
• Participants agreed to participate in the clinical validation and follow the validation program requirements, and signed the informed consent form

Exclusion Criteria:

• There are important organs (heart and lung) serious disease history, or have autoimmune disease history, such as rheumatism, SLE, or have a history of immune dysfunction, such as suffering from aids
• Patients with cardiac pacemaker
• Patients with open wounds
• Pregnant and lactating women
• Patients with history of mental illness
• Participants participated in other medical device trials or drug clinical trials within three months
• The researchers believe that the participants who are not eligible for clinical validation should be considered
• Patients who need to be treated with drugs
• Patients requiring physical therapy