Ventilation method and control of a ventilator based on same

a ventilator and control technology, applied in the field of ventilating human patients, can solve the problems of insufficient reflection of individual air spaces, high volume lung injury, and v curve, and achieve the effects of reducing ventilator-related drug costs, reducing ventilator-associated complications, and increasing the number of free days

Inactive Publication Date: 2006-08-10
HABASHI NADER M
View PDF34 Cites 65 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0029] Applicant's ventilation method and method for controlling a ventilation apparatus based on same provides significant advantages over the prior art. These advantages include an increase in vent free days, lower ventilator-related drug costs, reduced ventilator associated complicati...

Problems solved by technology

The P-V curve represents the entire respiratory system and may not adequately reflect the individual air spaces.
It is recognized that if PEEP levels are set to end inspiratory ...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ventilation method and control of a ventilator based on same
  • Ventilation method and control of a ventilator based on same
  • Ventilation method and control of a ventilator based on same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] An operator interface coupled to the control unit typically includes a graphical user interface as well as a keyboard and / or pointing device to enable an operator to select the operating mode of the ventilator and / or to enter or edit patient data and operating parameters such as the pressures, times, flows, and / or volumes associated with one or more ventilation cycles.

[0039] Referring to FIG. 1, the invention contemplates initiating ventilation of a patient in an APRV mode based on initial oxygenation and ventilation settings. The airway pressure during expiration (P2) is substantially zero throughout ventilation to allow for the rapid acceleration of expiratory gas flow rates. Typically, the fraction of oxygen in the inspired gas (FiO2) is initially set at about 0.5 to 1.0 (i.e. about 50% to 100%). The highest airway pressure achieved during inspiration (PI) must be sufficiently high to overcome airspace closing forces and initiate recruitment of lung volume. PI may suitabl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides an improved ventilation method and method for controlling a ventilator apparatus in accordance with same. More specifically, the present invention relates to a method of controlling a ventilator apparatus comprising the steps of placing a ventilator in a mode capable of adjusting airway pressure (P) and time (T), monitoring expiratory gas flow, analyzing the expiratory gas flow over time (T) to establish an expiratory gas flow pattern, and setting and/or adjusting a low time (T2) based on the expiratory gas flow pattern. Alternatively, the present invention relates to a method of controlling a ventilator apparatus comprising the steps of placing a ventilator in a mode capable of adjusting airway pressure (P) and time (T), and setting a low airway pressure (P2) of substantially zero cmH2O.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a divisional of U.S. application Ser. No. 10 / 176,710 filed Jun. 20, 2002, which claims priority to U.S. Provisional Application No. 60 / 299,928 filed Jun. 21, 2001.FIELD OF THE INVENTION [0002] The invention related to the field of ventilating human patients. More particularly, the present invention relates to an improved method of initiation, management and / or weaning of airway pressure release ventilation and for controlling a ventilator in accordance with same. BACKGROUND OF THE INVENTION [0003] Airway pressure release ventilation (APRV) is a mode of ventilation believed to offer advantages as a lung protective ventilator strategy. APRV is a form of continuous positive airway pressure (CPAP) with an intermittent release phase from a preset CPAP level. [0004] During APRV, ventilation occurs on the expiratory limb. The resultant expiratory tidal volume decreases lung volume, eliminating the need to elevate end inspir...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61M16/00A62B7/00
CPCA61M16/00A61M2016/0039A61M2016/0042A61M2205/3331A61M2230/202A61M2230/205A61M16/024A61M16/0003A61M16/0069A61M2016/003A61M2205/3334A61M2205/50
Inventor HABASHI, NADER MAHER
Owner HABASHI NADER M
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap