SYSTEM AND DEVICE FOR NEONATAL RESUSCITATION AND INITIAL RESPIRATORY SUPPORT

• US 20130327332A1
• Filed: 02/08/2012
• Published: 12/12/2013
• Est. Priority Date: 02/08/2011
• Status: Active Grant

• Current Assignee: Neores AB
• Original Assignee: Ventinvent AB
• Inventors: Nilsson, Kjell, Drevhammar, Thomas
• Granted Patent: US 9,895,504 B2
• Time in Patent Office: Days
• US Class Current: 128/205.24
• CPC Class Codes: A61M 16/0057 Pumps therefor
• CPC Class Codes: A61M 16/0816 Joints or connectors
• CPC Class Codes: A61M 16/1015 using a gas flush valve, e.g. oxygen flush valve
• CPC Class Codes: A61M 16/12 by mixing different gases
• CPC Class Codes: A61M 16/209 Relief valves
• CPC Class Codes: A61M 2016/0027 pressure meter
• CPC Class Codes: A61M 2016/003 with a flowmeter
• CPC Class Codes: A61M 2202/0007 introduced into the body
• CPC Class Codes: A61M 2202/0208 Oxygen
• CPC Class Codes: A61M 2240/00 Specially adapted for neonatal use

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.

Claims

1. A device for positive pressure ventilation and continuous positive airway pressure treatment for neonatal resuscitation comprising:

a first fresh gas flow tube, arranged to provide a first fresh gas flow;

a 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 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 arranged to be connected with an infant interface; and

a pressure release valve, arranged to prevent an excessive positive pressure in a positive pressure ventilation mode;

wherein the third connection portion embodies an outlet, the device further comprising;

a second fresh gas flow tube, arranged to provide a second fresh gas flow, which is added to the first fresh gas flow in the positive pressure ventilation mode.

2. The device according to claim 1, wherein the second fresh gas flow tube is connected with one of the connector and the third connection portion.

3. The device according to claim 1, wherein the pressure release valve is connected with one of the second fresh gas flow tube, the connector, and the third connection portion.

4. The device according to claim 1, wherein the second fresh gas flow tube is connected with the connector.

5. The device according to claim 1, wherein the second fresh gas flow tube is connected with the third connection portion.

6. The device according to claim 5, wherein the second fresh gas flow tube is connected through a wall of the third connection portion, wherein the third connection portion comprises an open end defining the outlet.

7. The device according to claim 1 where the first fresh gas flow to the variable flow continuous positive airway pressure generator is 3-12 liters per minute and the second fresh gas flow is 3-12 liters per minute.

8. The device according to claim 1, further comprising a pressure measuring device.

9. A system for positive pressure ventilation and continuous positive airway pressure treatment for neonatal resuscitation comprising a device according to claim 1, and a fresh gas connection unit, connected with the first and second fresh gas flow tubes, and connectable to at least one fresh gas source.

10. The system according to claim 9, arranged such that when the open end outlet of the outlet of the variable flow continuous positive airway pressure generator is occluded the pressure will increase from the variable continuous positive airway pressure generator until the opening pressure of the release valve is reached, the increase in pressure results to an inspiratory flow, the pressure in the system will remain at the set positive pressure ventilation pressure until the outflow occlusion is removed, when the occluded outflow is opened the pressure will return to the set continuous positive airway pressure level and this reduction in pressure will lead to an expiratory flow.

11. The system according to claim 9, arranged such that during spontaneous breathing, the infant flow and the fresh gas flow leaves the breathing system over the variable flow continuous positive airway pressure generator keeping the positive pressure within the airway stable, by varying the fraction of flow that generates the continuous positive airway pressure pressure the continuous positive airway pressure in the airway can be adjusted as needed.

12. Use of a device according to claim 1 in positive pressure ventilation and continuous positive airway pressure treatment for neonatal resuscitation.

13. Use of a system according to claim 9 for positive pressure ventilation and continuous positive airway pressure treatment for neonatal resuscitation.