An inhaled synchronization chest wall pressurization system

Abstract

The application provides an inspiration synchronous chest wall pressurization system, comprising a flow sensor, a control air pump and a pressurized air-filled vest, wherein the flow sensor is connected with a breathing machine pipeline; an air bag is arranged in the inside of the chest of the pressurized air-filled vest, and the two sides of the air bag are respectively provided with an air inlet and an air outlet; a control circuit board, a positive pressure air pump and a negative pressure air pump are arranged in the shell of the control air pump, the positive pressure air pump and the negative pressure air pump are respectively connected with the air inlet and the air outlet through air filling hoses and air discharging hoses, the interfaces of the positive pressure air pump and the negative pressure air pump for connecting the air filling hoses and the air discharging hoses are respectively provided with first and second electromagnetic valves, the first and second electromagnetic valves are connected with the control circuit board, the control circuit board is connected with the flow sensor, and a plurality of control switches connected with the control circuit board are arranged on the front surface of the shell. The application can realize the self-pressurization of the air bag of the vest, and can also realize the chest wall pressurization during the inspiration of the patient and the pressure relief during the expiration.

Description

Technical Field

[0001] This invention relates to the medical field, specifically to an inspiratory-synchronized chest wall pressurization system. Background Technology

[0002] Patients with a history of severe acute respiratory distress syndrome (ARDS) experience localized lung hyperventilation during mechanical ventilation, leading to ventilation-related lung injury (VLE). Current clinical studies have demonstrated that continuous chest wall compression can reduce the risk of localized lung hyperventilation, but this continuous chest wall compression also increases the risk of localized lung collapse. Therefore, a technique is needed that provides chest wall compression during inspiration and decompression during expiration, but no such technology or product is currently available on the market. Summary of the Invention

[0003] This invention provides an inhalation-synchronized chest wall pressurization system, which includes a flow sensor, a control air pump, and a pressurized inflatable vest.

[0004] The flow sensor is connected to the ventilator tubing and is used to monitor the gas flow rate in the tubing;

[0005] The pressurized inflatable vest has a vertical opening on one side that separates the front and back panels of the vest. Both the front and back panels have restraint straps on this side, and the two restraint straps are connected by Velcro. An air bladder is provided on the inside of the chest area of ​​the pressurized inflatable vest, and an inflation port and a deflation port are provided on both sides of the air bladder.

[0006] The housing of the control air pump contains a control circuit board, a positive pressure air pump, and a negative pressure air pump. The positive pressure air pump and the negative pressure air pump are connected to the inflation port and the deflation port respectively via inflation hose and deflation hose. The interfaces of the positive pressure air pump and the negative pressure air pump used to connect to the inflation hose and the deflation hose are respectively equipped with a first solenoid valve and a second solenoid valve. Both the first solenoid valve and the second solenoid valve are connected to the control circuit board. The control circuit board is connected to the flow sensor. On the front of the housing, there are a chest wall pressure switch, an inhalation synchronization switch, an inflation switch, and a deflation switch connected to the control circuit board.

[0007] Furthermore, the housing is provided with a lamp hole, and a multi-color LED bead is provided in the lamp hole. The LED bead is soldered to the control circuit board.

[0008] Furthermore, the control circuit board is communicatively connected to the flow sensor via a signal power line and the flow sensor is powered by the control air pump. One end of the signal power line is fixedly connected to the housing, and the other end is provided with a quick-connect connector for plugging into the flow sensor.

[0009] First, connect the flow sensor to the ventilator tubing to monitor the gas flow rate, distinguishing between the inspiratory and expiratory phases, and converting it into an electrical signal that is transmitted to the control pump. Put an inflatable vest on the patient, connecting it to the control pump via an inflation / deflation hose. When the operator turns on the chest wall pressure switch, the pump continuously inflates the vest until the chest wall pressure reaches the appropriate level. The operator then turns off the chest wall pressure switch, at which point the inflatable vest provides continuous chest wall pressure. When the operator turns on the inspiratory synchronization switch, the inflatable vest will rapidly increase or decrease pressure synchronously with the inspiratory or expiratory phases. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of an inhalation-synchronized chest wall pressurization system according to the present invention;

[0012] Figure 2 This is a schematic diagram of the housing of the air pump controlled by the present invention;

[0013] Figure 3 This is a schematic diagram of the pressurized inflatable vest of the present invention. Detailed Implementation

[0014] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0015] To fully understand this invention, detailed steps and structures will be presented in the following description to illustrate the technical solution of this invention. Preferred embodiments of the invention are described in detail below; however, in addition to these detailed descriptions, the invention may have other embodiments.

[0016] Reference Figure 1-3 As shown, the present invention provides an inhalation-synchronized chest wall pressurization system, which includes a flow sensor 10, a control air pump 20, and a pressurized inflatable vest 30.

[0017] The flow sensor 10 is connected to the ventilator tubing and is used to monitor the gas flow rate in the tubing.

[0018] A vertical opening 33 separates the front panel 31 and the back panel 32 of the pressurized inflatable vest 30 on one side. Both the front and back panels have restraint straps 34 on this side, which are connected by Velcro. This design facilitates wearing the pressurized inflatable vest 30 and allows it to fit snugly against the patient's body using the restraint straps 34. An air bladder 35 is located inside the chest area of ​​the pressurized inflatable vest 30, with an inflation port and a deflation port on each side of the air bladder 35.

[0019] Inside the housing of the control air pump 20, there is a control circuit board 21, a positive pressure air pump 22, and a negative pressure air pump 23. The positive pressure air pump 22 and the negative pressure air pump 23 are connected to the inflation port and the deflation port respectively through the inflation hose 22-1 and the deflation hose 23-1. At the interface of the positive pressure air pump 22 and the negative pressure air pump 23 used to connect to the inflation hose 22-1 and the deflation hose 23-1, there are respectively a first solenoid valve 22-2 and a second solenoid valve 23-2. The first solenoid valve 22-2 and the second solenoid valve 23-2 are both connected to the control circuit board 21. The control circuit board 21 is connected to the flow sensor 10. On the front of the housing, there are a chest wall pressure switch 24, an inhalation synchronization switch 25, an inflation switch 26, and a deflation switch 27 connected to the control circuit board 21.

[0020] The control air pump 20 is connected to the inflatable vest through a connecting pipe, which can inflate or deflate the inflatable vest, thus pressurizing or depressurizing it. The control circuit board 21 is connected to the flow sensor 10 to receive electrical signals from the inspiratory and expiratory phases.

[0021] When the operator opens the chest wall pressure switch 23, the first solenoid valve 22-2 opens and the second solenoid valve 23-2 closes. The positive pressure air pump 22 continuously inflates the pressurized inflatable vest 30 until the chest wall vest pressure reaches a suitable level (as determined by the operator). The operator then presses the chest wall pressure switch 23 again. At this time, both the first solenoid valve 22-2 and the second solenoid valve 23-2 close, and the positive pressure air pump 22 is simultaneously turned off, so that the airbag 35 maintains its current position for continuous chest wall pressure.

[0022] When the operator turns on the inspiratory synchronization switch 24, the pressurized inflatable vest 30 will rapidly increase or decrease pressure synchronously with the inspiratory or expiratory phases. In this state, both the positive pressure pump 22 and the negative pressure pump 23 are in operation, and the second solenoid valve 23-2 is normally open. The first solenoid valve 22-2 switches between open and closed states according to the respiratory rate: when the first solenoid valve 22-2 is open, the positive pressure pump 22 rapidly inflates with a greater volume than the negative pressure pump 23, causing the air bag 35 to increase in volume to apply pressure to the patient's chest; when the first solenoid valve 22-2 is closed, the air bag 35 loses air intake, and under the action of the negative pressure pump 23, the inflated air bag 35 shrinks in volume to reduce pressure on the patient's chest.

[0023] In an optional embodiment, the housing is provided with a lamp hole, and a multi-color LED bead 28 for displaying the forward and reverse rotation status of the air pump 22 is provided in the lamp hole. The LED bead is soldered and fixed on the control circuit board 21, and the inflation and deflation status of the airbag 35 is displayed by the color of the LED bead 28.

[0024] In an optional embodiment, the control circuit board 21 is communicatively connected to the flow sensor 10 via a signal power line 11, and the flow sensor 10 is powered by the control air pump 20. One end of the signal power line 11 is fixedly connected to the housing, and the other end is provided with a quick-connect connector for plugging into the flow sensor 10. The control air pump 20 is detachably connected to both the flow sensor 10 and the airbag 35, facilitating disassembly and relocation.

[0025] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a conventional manner in the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the present invention. This does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the present invention's technical solutions still fall within the protection scope of the present invention.

Claims

1. A synchronous chest wall pressurization system for inhalation, characterized in that, The inhalation-synchronized chest wall pressurization system includes a flow sensor (10), a control air pump (20), and a pressurized inflatable vest (30). The flow sensor (10) is connected to the ventilator tubing and is used to monitor the gas flow rate in the tubing; A vertical opening (33) is provided on one side of the pressurized inflatable vest (30) to separate the front piece (31) and the back piece (32) of the vest. Both the front piece (31) and the back piece (32) are provided with restraint straps (34) on this side. The two restraint straps (34) are connected by Velcro. An air bladder (35) is provided on the inside of the chest area of ​​the pressurized inflatable vest (30). An inflation port and an deflation port are provided on both sides of the air bladder (35). Inside the housing of the control air pump (20) are a control circuit board (21), a positive pressure air pump (22), and a negative pressure air pump (23). The positive pressure air pump (22) and the negative pressure air pump (23) are connected to the inflation port and the deflation port respectively through an inflation hose (22-1) and a deflation hose (23-1). The positive pressure air pump (22) and the negative pressure air pump (23) are used to connect the interfaces of the inflation hose (22-1) and the deflation hose (23-1) respectively. The first solenoid valve (22-2) and the second solenoid valve (23-2) are respectively provided. The first solenoid valve (22-2) and the second solenoid valve (23-2) are connected to the control circuit board (21). The control circuit board (21) is connected to the flow sensor (10). On the front of the housing are a chest wall pressure switch (24), an inhalation synchronization switch (25), an inflation switch (26), and a deflation switch (27) connected to the control circuit board (21). When the chest wall pressure switch (23) is turned on, the first solenoid valve (22-2) is turned on and the second solenoid valve (23-2) is turned off. The positive pressure pump (22) continuously inflates the pressurized vest (30) until the chest wall vest pressure reaches a suitable level. The operator presses the chest wall pressure switch (23) again. At this time, the first solenoid valve (22-2) and the second solenoid valve (23-2) are both turned off, and the positive pressure pump (22) is turned off at the same time, so that the airbag (35) is maintained in the current position for continuous chest wall pressure. After the inhalation synchronization switch (24) is turned on, the pressurized inflatable vest (30) will rapidly increase or decrease pressure in sync with the inhalation or exhalation phases. In this state, both the positive pressure pump (22) and the negative pressure pump (23) are in operation, and the second solenoid valve (23-2) is in the normally open state. The first solenoid valve (22-2) switches between open and closed states according to the respiratory rate: when the first solenoid valve (22-2) is open, the positive pressure pump (22) inflates rapidly and the air volume is greater than that of the negative pressure pump (23), which increases the volume of the air bag (35) to apply pressure to the patient's chest; when the first solenoid valve (22-2) is closed, the air bag (35) loses air intake, and under the action of the negative pressure pump (23), the volume of the inflated air bag (35) decreases to reduce the pressure on the patient's chest.

2. The inspiratory synchronized chest wall pressurization system as described in claim 1, characterized in that, The housing is provided with a lamp hole, and a multi-color LED bead (28) is provided in the lamp hole. The LED bead is welded to the control circuit board (21).

3. The inspiratory synchronized chest wall pressurization system as described in claim 1, characterized in that, The control circuit board (21) is connected to the flow sensor (10) via a signal power line (11) and the flow sensor (10) is powered by the control air pump (20). One end of the signal power line is fixedly connected to the housing, and the other end is provided with a quick connector to be plugged into the flow sensor (10).

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