Article 34 of the "Interim Measures for Technical Appraisal of Medical Accidents" stipulates: The technical appraisal report of medical accidents shall be made based on the appraisal conclusion, and its manuscript shall be signed by the leader of the expert appraisal team.

The medical accident technical appraisal certificate shall be stamped with the special seal of the Medical Accident Technical Appraisal of the Medical Association.

So the medical malpractice technical appraisal certificate is stamped with the special seal of the Medical Association for medical malpractice technical appraisal and does not have the signature of the appraisal expert.