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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0095652 (1993-07-21) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 304 인용 특허 : 0 |
An apparatus and method for facilitating the respiration of a patient are disclosed which are particularly useful in treating mixed and obstructive sleep apnea and certain cardiovascular conditions, among others, by increasing nasal air pressure delivered to the patient\s respiratory passages just p
An apparatus and method for facilitating the respiration of a patient are disclosed which are particularly useful in treating mixed and obstructive sleep apnea and certain cardiovascular conditions, among others, by increasing nasal air pressure delivered to the patient\s respiratory passages just prior to inhalation and by subsequently decreasing the pressure to ease exhalation effort. The preferred apparatus includes a patient-coupled gas delivery device for pressurizing the patient\s nasal passages at a controllable pressure, and a controller coupled with the delivery device having a pressure transducer for monitoring the nasal pressure and a microcontroller for selectively controlling the nasal pressure. In operation, the controller determines a point in the patient breathing cycle just prior to inhalation and initiates an increase in nasal pressure at that point in order to stimulate normal inhalation, and subsequently lowers the nasal pressure to ease exhalation efforts.
An apparatus for determining the airway patency of a patient exhibiting a breath cycle having inhalation and exhalation phases, said apparatus comprising: means for supplying a breathable gas from a source thereof under a controllable pressure to at least a portion of the patient\s airway, said pres
An apparatus for determining the airway patency of a patient exhibiting a breath cycle having inhalation and exhalation phases, said apparatus comprising: means for supplying a breathable gas from a source thereof under a controllable pressure to at least a portion of the patient\s airway, said pressure being maintained substantially constant during the inhalation phase of a breath cycle; means for sensing patient respiration flow and for producing flow signals representative of patient respiration flow; signal processing means for receiving said flow signals and for determining patient airway patency values from said flow signals in view of said pressure of breathable gas delivered by said means for supplying; and means for adjusting said pressure in accordance with said patient airway patency values.
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