System and device for neonatal resuscitation and initial respiratory support
First Claim
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1. A device for positive pressure ventilation and continuous positive airway pressure treatment for neonatal resuscitation comprising:
- a first fresh gas flow tube, configured to provide a first fresh gas flow;
a variable flow continuous positive airway pressure generator configured to generate a continuous positive airway pressure level, the variable flow continuous positive airway pressure generator comprising first, second and third connection portions, wherein the first fresh gas flow tube is connected with the first connection portion, wherein the generated continuous positive airway pressure level is adjusted by varying the first fresh gas flow to the variable flow continuous positive airway pressure generator;
a connector connected with the second connection portion of the variable flow continuous positive airway pressure generator, wherein the connector is configured to be connected with an infant interface; and
a pressure release valve, configured to prevent an excessive positive pressure in a positive pressure ventilation mode;
wherein the third connection portion comprises an occludable open end defining an outlet, the device further comprising;
a second fresh gas flow tube, configured to provide a second fresh gas flow, which is added to the first fresh gas flow in the positive pressure ventilation mode,wherein the second fresh gas flow tube is connected through a wall of one of the connector and the third connection portion, wherein the pressure release valve is connected through a wall of the second fresh gas flow tube;
wherein the open end is configured to control a mode of operation of the device based on controlling the second fresh gas flow, such thatwhen the open end is non-occluded, the second fresh gas flow flows out of the outlet to configure the device to operate in a continuous positive airway pressure mode, andwhen the open end is occluded, the second fresh gas flow adds to the first fresh gas flow to configure the device to operate in the positive pressure ventilation mode, andwherein the device is free from mechanical valves at the outlet.
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Abstract
The present invention relates to a device and a system for positive pressure ventilation and continuous positive airway pressure (CPAP) treatment for neonatal resuscitation and initial respiratory support. The device and system are designed and tested for preterm and term neonatal use. The device is easy to use and allows rapid switch between PPV and CPAP without change of equipment and significantly reduces the imposed work of breathing for a breathing child treated with CPAP.
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Citations
12 Claims
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1. A device for positive pressure ventilation and continuous positive airway pressure treatment for neonatal resuscitation comprising:
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a first fresh gas flow tube, configured to provide a first fresh gas flow; a variable flow continuous positive airway pressure generator configured to generate a continuous positive airway pressure level, the variable flow continuous positive airway pressure generator comprising first, second and third connection portions, wherein the first fresh gas flow tube is connected with the first connection portion, wherein the generated continuous positive airway pressure level is adjusted by varying the first fresh gas flow to the variable flow continuous positive airway pressure generator; a connector connected with the second connection portion of the variable flow continuous positive airway pressure generator, wherein the connector is configured to be connected with an infant interface; and a pressure release valve, configured to prevent an excessive positive pressure in a positive pressure ventilation mode; wherein the third connection portion comprises an occludable open end defining an outlet, the device further comprising; a second fresh gas flow tube, configured to provide a second fresh gas flow, which is added to the first fresh gas flow in the positive pressure ventilation mode, wherein the second fresh gas flow tube is connected through a wall of one of the connector and the third connection portion, wherein the pressure release valve is connected through a wall of the second fresh gas flow tube; wherein the open end is configured to control a mode of operation of the device based on controlling the second fresh gas flow, such that when the open end is non-occluded, the second fresh gas flow flows out of the outlet to configure the device to operate in a continuous positive airway pressure mode, and when the open end is occluded, the second fresh gas flow adds to the first fresh gas flow to configure the device to operate in the positive pressure ventilation mode, and wherein the device is free from mechanical valves at the outlet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A device for positive pressure ventilation and continuous positive airway pressure treatment for neonatal resuscitation comprising:
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a continuous flow first fresh gas flow tube, configured to provide a continuous first fresh gas flow; a continuous flow second fresh gas flow tube, configured to provide a continuous second fresh gas flow, which is added to the first fresh gas flow in a positive pressure ventilation mode; a variable flow continuous positive airway pressure generator configured to generate a continuous positive airway pressure level, the variable flow continuous positive airway pressure generator comprising first, second and third connection portions, wherein the first fresh gas flow tube is connected with the first connection portion, wherein the generated continuous positive airway pressure level is adjusted by varying the first fresh gas flow to the variable flow continuous positive airway pressure generator; a connector connected with the second connection portion of the variable flow continuous positive airway pressure generator; an infant interface connected with the connector; and a pressure release valve, configured to prevent an excessive positive pressure in a positive pressure ventilation mode; wherein the third connection portion embodies an outlet of the variable flow continuous positive airway pressure generator, which outlet is tubular and ends with an occludable open end; wherein a portion of the first fresh gas tube at the first connection portion being positioned adjacent to and extending at an acute angle to the tubular outlet, and being directed towards the infant interface; wherein the second fresh gas flow tube is connected through a wall of the third connection portion, between the first connection portion and the open end; wherein the device is free from mechanical valves between the infant interface and the open end; wherein the open end is configured to control a mode of operation of the device based on controlling the second fresh gas flow, such that when the open end is non-occluded, the second fresh gas flow flows out of the outlet to configure the device to operate in a continuous positive airway pressure mode, and when the open end is occluded, the second fresh gas flow adds to the first fresh gas flow to configure the device to operate in the positive pressure ventilation mode.
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12. A method of providing positive pressure ventilation and continuous positive airway pressure treatment for neonatal resuscitation comprising:
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performing the method using a device comprising a variable flow continuous positive airway pressure generator, which is configured to generate a continuous positive airway pressure level and which includes first, second and third connection portions, and a connector connected with the second connection portion, wherein the connector is configured to be connected with an infant interface, wherein the third connection portion comprises an occludable open end defining an outlet, and wherein the device is free from mechanical valves between the infant interface and the open end; providing a continuous first fresh gas flow to the first connection; adjusting the generated continuous positive airway pressure level by varying the first fresh gas flow to the variable flow continuous positive airway pressure generator; providing a continuous second fresh gas flow to one of the connector and the third connection portion; controlling a mode of operation of the device by operating the open end, comprising occluding the open end to configure the device to operate in a positive pressure ventilation mode, wherein the second fresh gas flow adds to the first fresh gas flow, and non-occluding the open end to configure the device to operate in a continuous positive airway pressure mode, wherein the second fresh gas flow flows out of the outlet.
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Specification