Energy relief control in a mechanical ventilator
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-016/00
A62B-007/00
F16K-031/02
A61M-016/06
출원번호
US-0306366
(2007-07-02)
등록번호
US-9010327
(2015-04-21)
국제출원번호
PCT/SE2007/000650
(2007-07-02)
§371/§102 date
20081223
(20081223)
국제공개번호
WO2008/002252
(2008-01-03)
발명자
/ 주소
Tiedje, Mikael
출원인 / 주소
Breas Medical AB
대리인 / 주소
Taboada, Alan
인용정보
피인용 횟수 :
0인용 특허 :
11
초록▼
The present invention relates to a solution for controlling the pressure/flow of breathing gas to a mechanical ventilator (4) by using an energy of breathing analysis and further to provide a pressure relief during exhalation and a trigger determination when to start the pressure relief using energy
The present invention relates to a solution for controlling the pressure/flow of breathing gas to a mechanical ventilator (4) by using an energy of breathing analysis and further to provide a pressure relief during exhalation and a trigger determination when to start the pressure relief using energy content of breathing in analysis for determining a pressure curve form during at least a portion of the expiration phase.
대표청구항▼
1. A mechanical ventilator for treatment of breathing disorders in a patient, comprising: a controllable pressure and breathing gas flow generator, and sensor input for receiving at least one sensor signal indicative of breathing gas pressure and/or flow,wherein the ventilator is arranged to determi
1. A mechanical ventilator for treatment of breathing disorders in a patient, comprising: a controllable pressure and breathing gas flow generator, and sensor input for receiving at least one sensor signal indicative of breathing gas pressure and/or flow,wherein the ventilator is arranged to determine an inspiratory energy of breathing associated with the ventilator by measuring current and voltage supplied to the generator, andwherein the ventilator is further arranged to determine an amount of pressure reduction, to be used during an expiration period, based on the inspiratory energy of breathing. 2. The ventilator according to claim 1, arranged to determine a trigger point between an inspiration and expiration phase of a breathing cycle, wherein the ventilator is controllable to reduce the pressure by the amount of pressure reduction during a period of time during the expiration phase of the breathing cycle. 3. The ventilator according to claim 2, arranged to determine the amount of pressure reduction as the inspiratory energy of breathing times an energy relief factor divided by an exhalation energy. 4. The ventilator according to claim 1, arranged to determine the inspiratory energy of breathing by measuring the pressure and flow supplied to the patient. 5. The ventilator according to claim 1, arranged to provide a continuous positive airway pressure ventilation. 6. The ventilator according to claim 1, arranged to receive further sensor signals indicative of at least one of EEG, EMG, EOG, ECG, O2, CO2, temperature, blood pressure, eye movements, or sound. 7. A method of increasing the comfort for a patient using a mechanical ventilator comprising a controllable pressure and breathing gas flow generator, comprising the steps of: measuring a plurality of parameters during an inspiration phase of a breathing cycle;determining a trigger point between the inspiration phase and a subsequent expiration phase;determining a curve form of a pressure signal using an analysis of an inspiratory energy of breathing associated with the mechanical ventilator that is determined by measuring current and voltage supplied to the generator;controlling the pressure of the breathing air from the mechanical ventilator, using the determined curve form of the pressure signal, during at least a portion of the subsequent expiration phase; andcontrolling the mechanical ventilator to reduce the pressure during a period of time during the subsequent expiration phase of the breathing cycle, wherein an amount of pressure reduction is determined from the inspiratory energy of breathing determination. 8. The method of claim 7, wherein the trigger point between the inspiration phase and the subsequent expiration phase is determined using the mechanical ventilator. 9. The method of claim 7, wherein the amount of pressure reduction is determined as the inspiratory energy of breathing times an energy relief factor and dividing by an exhalation energy. 10. The method of claim 7, wherein the inspiratory energy of breathing is further determined by measuring the pressure and flow supplied to the patient. 11. The method of claim 7, further comprising: providing a continuous positive airway pressure ventilation using the mechanical ventilator. 12. A mechanical ventilator system comprising: a mechanical ventilator,a breathing mask,a breathing air conduit between the mechanical ventilator and the breathing mask, andsensors for measuring data indicative of breathing condition and mechanical ventilator condition for use in a controller for controlling the supply of pressure and/or flow of breathing gas from the mechanical ventilator to a patient,wherein the mechanical ventilator is arranged to determine an inspiratory energy of breathing associated with the mechanical ventilator by measuring current and voltage supplied to a fan in the mechanical ventilator that provides pressure and flow of breathing gas, andwherein the mechanical ventilator is further arranged to determine an amount of pressure reduction, to be used during an expiration period, based on the inspiratory energy of breathing. 13. The system according to claim 12, wherein the mechanical ventilator is further arranged to determine a trigger point between an inspiration and expiration phase of a breathing cycle, wherein the mechanical ventilator is controllable to reduce the pressure by the amount of pressure reduction during a period of time during the expiration phase of the breathing cycle. 14. The system according to claim 13, wherein the mechanical ventilator is arranged to determine the amount of pressure reduction as the inspiratory energy of breathing times an energy relief factor divided by an exhalation energy. 15. The system according to claim 12, wherein the mechanical ventilator is further arranged to determine the inspiratory energy of breathing by measuring the pressure and flow supplied to the patient. 16. The system according to claim 12, wherein the mechanical ventilator is arranged to provide a continuous positive airway pressure ventilation. 17. The system according to claim 12, wherein the mechanical ventilator is arranged to receive sensor signals indicative of at least one of EEG, EMG, EOG, ECG, O2, CO2, temperature, blood pressure, eye movements, or sound.
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이 특허에 인용된 특허 (11)
Champain Roger (Les Loges en Josas FRX) Kissi Nourredine (Masny FRX) Zalkin Daniel (Rambouillet FRX 4), Apparatus for providing a breathing gas with an overpressure and process of controlling such apparatus installation.
Sullivan Colin E. (Sidney AUX) Lynch Christopher (Sidney AUX), Device and method for monitoring breathing during sleep, control of CPAP treatment, and preventing of apnea.
Gruenke Roger A. (Overland Park KS) Trimble Russell L. (Overland Park KS) Lasnier Christopher D. (Olathe KS) Loethen Steven W. (Independence MO) Orlt Jiri G. (Shawnee KS) Snook James A. (Overland Par, Inspiratory airway pressure system controlled by the detection and analysis of patient airway sounds.
Estes, Mark C.; Fiore, John; Mechlenburg, Douglas M.; Ressler, Heather; Kepler, Jeff, Method and apparatus for providing positive airway pressure to a patient.
Kimm Gardner J. (Carlsbad CA) Gee Glen N. (Encinitas CA) Fennema Paul J. (Fallbrook CA) Sanborn Warren G. (Escondido CA), System and method for flow triggering of pressure supported ventilation.
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