发明名称 |
Miniature high-frequency ventilator |
摘要 |
A high-frequency miniature pressure ventilator system including a variable volume pressure chamber arranged to surround a portion of the thoracic cavity of a body so as to isolate the portion of the body from atmospheric pressure. A pump assembly is operable for varying the pressure within the chamber so as to apply negative external pressure to the portion of the body during a negative cycle of operation. A valve assembly is operable for opening the chamber to a predetermined pressure during a positive cycle of operation in order to normalize a base pressure from which the pressure within said chamber is varied. In another embodiment there is provided a high-frequency pressure ventilator system including a variable volume pressure chamber arranged to surround the head of a body so as to isolate the head from atmospheric pressure. A pump assembly is operable for varying the pressure within the chamber so as to apply positive external pressure to the head during a positive cycle of operation. A valve assembly is operable for opening the chamber to predetermined pressure during a negative cycle of operation in order to normalize a base pressure from which the pressure within said chamber is varied. |
申请公布号 |
US5871008(A) |
申请公布日期 |
1999.02.16 |
申请号 |
US19960725414 |
申请日期 |
1996.10.03 |
申请人 |
MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
发明人 |
POON, CHI-SANG;KOLANDAIVELU, KUMARAN |
分类号 |
A61H31/02;A61M16/00;A61M16/06;(IPC1-7):A61G10/00 |
主分类号 |
A61H31/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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