Portable manual ventilation device

• US 8,973,580 B1
• Filed: 01/09/2014
• Issued: 03/10/2015
• Est. Priority Date: 01/09/2014
• Status: Active Grant

• Current Assignee: Osborne Williams
• Original Assignee: Osborne Williams
• Inventors: Williams, Osborne
• Primary Examiner(s): Dixon, Annette
• Application Number:
  US14/151,486
• Time in Patent Office: 425 Days
• Field of Search: 128/200.24, 128/203.12, 128/203.15, 12820513-20517, 604 9701- 9703, 604/98.01, 604/98.02, 604 9901- 9903, 604/185, 604/403, 604/408
• US Class Current: 128/205.28
• CPC Class Codes: A61M 16/0003 Accessories therefor, e.g. sensors, vibrators, negative pressure
• CPC Class Codes: A61M 16/0051 with alarm devices
• CPC Class Codes: A61M 16/0078 Breathing bags
• CPC Class Codes: A61M 16/0084 self-reinflatable by elasticity, e.g. resuscitation squeeze bags
• CPC Class Codes: A61M 16/021 operated by electrical means A61M16/202 – A61M16/205 take precedence
• CPC Class Codes: A61M 16/04 Tracheal tubes catheters in general A61M25/00
• CPC Class Codes: A61M 16/06 Respiratory or anaesthetic masks
• CPC Class Codes: A61M 16/08 Bellows; Connecting tubes having means for taking samples G01N1/22; Water traps; Patient circuits
• CPC Class Codes: A61M 16/0875 Connecting tubes
• CPC Class Codes: A61M 16/0883 Circuit type
• CPC Class Codes: A61M 16/0891 Closed circuit, e.g. for anaesthesia
• CPC Class Codes: A61M 16/1005 with O2 features or with parameter measurement
• CPC Class Codes: A61M 16/104 specially adapted for anaesthetics A61M16/18 takes precedence
• CPC Class Codes: A61M 16/201 Controlled valves
• CPC Class Codes: A61M 16/208 Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
• CPC Class Codes: A61M 16/22 Carbon dioxide-absorbing devices ; Other means for removing carbon dioxidecartridges with absorbing substances for respiratory apparatus A62B19/00
• CPC Class Codes: A61M 2016/0027 pressure meter
• CPC Class Codes: A61M 2016/0033 electrical
• CPC Class Codes: A61M 2016/103 the CO2 concentration
• CPC Class Codes: A61M 2202/0225 Carbon oxides, e.g. Carbon dioxide
• CPC Class Codes: A61M 2205/18 : with alarm
• CPC Class Codes: A61M 2205/3327 : Measuring
• CPC Class Codes: A61M 2205/3331 : Pressure; Flow
• CPC Class Codes: A61M 2205/35 : Communication
• CPC Class Codes: A61M 2205/502 : User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/8206 : battery-operated
• CPC Class Codes: A61M 2230/432 : partial CO2 pressure (P-CO2)

Abstract

A portable, compact closed circuit ventilation device for manual ventilation of a patient undergoing a surgical or medical procedure that requires sedation as well as emergency management of respiratory failure. One example embodiment includes a closed breathing circuit having a manually squeezable bag, a carbon dioxide absorption canister, a plurality of valves, a gas port and a plurality of sensors for measuring Tidal Volume (TV), Peak Airway Pressure (PAP) and End Tidal CO2 (ETCO2). Another example embodiment includes an open breathing circuit having a bag, valves and sensors. A monitor displays the sensor measurements during the respiratory phases. In a spontaneously breathing patient the device may be used to assess the adequacy of patient'"'"'s respiratory efforts. During manual or assisted ventilation, the monitor assures safe and efficacious ventilation by the closed breathing circuit.

Claims

1. A portable ventilation system for manually ventilating a patient in clinical applications not undergoing general anesthesia, comprising:

a manual closed circuit ventilation device not configured for delivering general anesthesia, having a closed breathing circuit having a manually squeezable bag, a carbon dioxide absorption canister, a plurality of valves, a gas port, an expiratory intersection, an inspiratory intersection, tubing having an interior, said squeezable bag, said absorption canister, said valves, said port, said expiratory intersection, said inspiratory intersection coupled by said tubing and in fluid communication in the closed breathing circuit, said squeezable bag having said tubing coupling at a distal end and a proximal end, said gas port coupling directly to said tubing in fluid communication with a gas source;

said device having a plurality of sensors, said sensors operative for measuring a plurality of parameters within the closed breathing circuit, said sensors within said tubing producing a measurement for each parameter, said sensor coupled to said tubing interior, said device having a monitor, said monitor having a display screen, said monitor coupled to said sensors, each said sensor having a lead connecting to said monitor, said monitor displaying on said display screen said measurement for each parameter as said squeezable bag is compressed;

a ventilation mask coupled to the expiratory intersection and the inspiratory intersection;

a housing having a plurality of openings operative for coupling tubing to the closed breathing circuit, the housing containing a portion of said closed breathing circuit, said portion including said valves, said tubing, said carbon dioxide absorption canister, said sensors and sensor leads, tubing coupled to said expiratory intersection, tubing coupled to said inspiratory intersection and tubing coupled to said gas port of said closed breathing circuit extending through the openings in said housing, said manually squeezable bag external to the housing; and

a portable stand having a top and a bottom, said bottom having wheels, said top coupled to said monitor, said monitor on top of the stand, said monitor external to said housing, said housing having the closed breathing circuit coupled to said stand between the top and the bottom, said stand portably wheeled to a patient requiring ventilation, said patient having the ventilation mask in place, said monitor on the stand displaying on said display screen said measurement for each parameter as said squeezable bag is compressed, the bag manually ventilating the patient, the monitor assuring safe and efficacious manual ventilation by the closed breathing circuit.

2. The system as described in claim 1, wherein the parameters measured by said sensors in the closed breathing circuit comprise tidal air volume, peak airway pressure and end tidal carbon dioxide concentration, said end tidal carbon dioxide within said tubing within the same closed circuit as said tidal air volume sensor and said peak airway pressure sensor.