INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
发明人:
Seog Young HAN,Dae Hwan MOON
申请号：
US16348191
公开号：
US20190275215A1
申请日:
2017.11.08
申请国别(地区):
US
年份:
2019
代理人:
摘要：
The present invention relates to a negative pressure generating device and an automatic negative pressure wound therapy device having a pressure changing function using the same. The present invention includes a static load elastic unit which provides an elastic force having a predetermined magnitude； a rotating unit which is connected to the static load elastic unit to rotate by the static load elastic unit； and a negative pressure cylinder which is connected to the rotating unit and interworks with the rotation of the rotating unit to generate a negative pressure therein. According to the present invention, a constant negative pressure may be consistently generated by a mechanical structure so that a manufacturing cost is significantly reduced as compared with an electrical structure and the size may be reduced.
