发明授权
- 专利标题: Controllable partial rebreathing anesthesia circuit and respiratory assist device
- 专利标题(中): 可控部分再呼吸麻醉电路和呼吸辅助装置
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申请号: US840400申请日: 1977-10-07
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公开(公告)号: US4188946A公开(公告)日: 1980-02-19
- 发明人: Robert L. Watson , Robert L. Rayburn
- 申请人: Robert L. Watson , Robert L. Rayburn
- 专利权人: Rayburn Robert L,Watson Robert L
- 当前专利权人: Rayburn Robert L,Watson Robert L
- 主分类号: A61M16/00
- IPC分类号: A61M16/00 ; A61M16/08 ; A61M16/10
摘要:
A method and apparatus for administering anesthesia to a patient is shown. A control module may be connected through an inhalation breathing circuit to a patient with a portion of the mixed/expired gases being rebreathed by the patient thus improving humidification and heat retention. By use of a CO.sub.2 analyzer in the control module, the CO.sub.2 content of the expired gas is accurately measured with any necessary adjustments being made in the gases delivered to the patient. The control module includes an O.sub.2 analyzer, adjustable pressure warning and control device, pressure gauge, manually controlled scavenger valve, and bacterial filter connected thereto. An anesthesia ventilator or breathing bag may be used in conjunction with the control module for administering anesthesia or transportation of the patient. The inhalation breathing circuit has two concentric, non-kinking, corrugated tubes, one visually apparent within the other for delivering both fresh gas with a mixed portion of the expired gas to the patient through a special elbow adapter that allows suctioning without interrupting the fresh gas flow or ventilation of the patient.
公开/授权文献
- US6084591A Method and apparatus for deferred video rendering 公开/授权日:2000-07-04