Adjustable continuous positive airway pressure ventilation device

Abstract

The utility model discloses an adjustable continuous positive airway pressure ventilation device, relates to the technical field of positive pressure ventilation devices, and solves the problems that in the prior art, a CPAP device is complex in structure and high in manufacturing cost, the medical expense of a patient can be additionally increased, and popularization is not convenient. The device comprises a pressure air storage bag, the pressure air storage bag is communicated with an oxygen input mechanism and an oxygen output mechanism, the other end of the oxygen input mechanism is communicated with oxygen supply equipment, and the other end of the oxygen output mechanism is communicated with a tracheal catheter. The oxygen output mechanism is provided with a pressure gauge used for displaying the pressure in the airway and a pressure adjusting assembly used for adjusting the positive pressure of the airway. The utility model discloses can improve hypoxemia to a certain extent, prevent the possible respiratory system complication, promote patient's rehabilitation, and simple structure and principle, convenient operation, easy to handle, manufacturing cost is low, thereby effectively reducing patient's medical expenditure, is favorable for popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of positive pressure ventilation devices, and in particular relates to an adjustable continuous positive airway pressure ventilation device. Background Art

[0002] With the improvement of domestic living standards and medical standards, thoracic surgery is increasing year by year. And due to the progress of thoracic surgery and anesthesia technology, the short-term and long-term outcomes of patients have been significantly improved.

[0003] Before performing thoracic surgery, in order to provide surgeons with operating space and reduce the risk of cross-infection between the healthy and affected lungs, the patient must be intubated with a double-lumen endotracheal tube and lung isolation must be implemented. During the operation, the patient must undergo single-lung ventilation. Some patients have poor lung function, and single-lung ventilation cannot meet their oxygen supply needs, leading to bleeding and hypoxemia, and triggering a series of respiratory complications. This has become one of the main problems that plague anesthesiologists.

[0004] Hypoxemia during single-lung ventilation often begins about 10-15 minutes after single-lung ventilation. Once hypoxemia occurs, it should be actively treated. Specific measures include: increasing the oxygen concentration of the inspired gas, finding the cause of hypoxemia (excluding improper catheter position and blockage of respiratory secretions), checking whether the ventilation / blood flow ratio is appropriate (the influence of body position and general anesthesia, the influence of thoracotomy, and the weakening of hypoxic pulmonary vasoconstriction), and even needing to abandon single-lung ventilation and switch to high-frequency ventilation of both lungs. Among them, the most commonly used method in clinical anesthesia is to adjust the ventilation mode, such as using CPAP (Continuous Positive Airway Pressure) on the non-ventilated side or using CPAP on the non-ventilated side combined with PEEP on the ventilation side (3-6cm high water column). PEEP on the ventilation side can be set on the anesthesia machine, while CPAP on the non-ventilated side cannot be achieved through the anesthesia machine. During clinical anesthesia, a nasal oxygen cannula is often used to insert the bronchial catheter on the non-ventilated side to blow in oxygen at a low flow rate. This operation can often improve the imbalance between ventilation and perfusion and improve hypoxemia, but it has the potential for non-standardization, easy dislocation, too-deep insertion or blockage.

[0005] Implementing continuous positive airway pressure (CPAP) on the non-ventilated lung is an important method to reduce hypoxemia during single-lung ventilation. Most hospitals lack CPAP devices. In the existing technology, the CPAP devices in some hospitals are complex in structure and high in manufacturing cost, which will increase the medical expenses of patients and are not easy to promote.

[0006] Therefore, we propose an adjustable continuous positive airway pressure device to solve the above technical problems. Utility Model Content

[0007] In order to solve the technical problems in the above-mentioned prior art that the CPAP device has a complex structure, high manufacturing cost, will additionally increase the patient's medical expenses, and is not easy to promote, the utility model proposes an adjustable continuous positive airway pressure device.

[0008] The technical solution adopted by the utility model is as follows:

[0009] An adjustable continuous positive airway pressure device comprises a pressure storage bag, the pressure storage bag is connected to an oxygen input mechanism and an oxygen output mechanism, the other end of the oxygen input mechanism is connected to an oxygen supply device, the other end of the oxygen output mechanism is connected to a tracheal catheter, and the oxygen output mechanism is provided with a pressure gauge for displaying the pressure in the airway and a pressure regulating component for regulating the positive airway pressure.

[0010] By adopting the above technical scheme, when the utility model is in use, the oxygen input mechanism is connected to the oxygen supply equipment to ensure the normal oxygen supply, and the oxygen output mechanism is connected to the tracheal tube to ensure that oxygen is input into the patient's airway. During ventilation, according to the airway pressure displayed on the pressure gauge, the pressure regulating component is used to adjust the size of the positive airway pressure output, so that the collapsed lung on the surgical side is properly expanded, and the oxygen intake is increased, which helps to keep the patient's airway unobstructed, reduce respiratory resistance, and improve oxygenation and ventilation functions. For patients whose single-lung ventilation cannot meet the oxygen supply demand, it can improve hypoxemia to a certain extent, prevent possible respiratory complications, and promote patient recovery. Compared with the CPAP device in the prior art, the adjustable continuous positive airway pressure device provided by the utility model has a simpler structure and principle, is easy to operate, easy to use, and has a low manufacturing cost, thereby effectively reducing the patient's medical expenses and facilitating promotion.

[0011] In a further technical solution, a connecting tube is provided on the pressure air storage bag, the other end of the connecting tube is connected to the oxygen output mechanism, an air inlet pipe and an air outlet pipe are provided inside the connecting tube, both the air inlet pipe and the air outlet pipe are connected to the pressure air storage bag, the diameter of the air inlet pipe is larger than the diameter of the air outlet pipe, and one end of the air inlet pipe extends through the connecting tube and is connected to the oxygen input mechanism.

[0012] By adopting the above technical solution, since the diameter of the air inlet pipe is larger than the diameter of the air outlet pipe, the speed at which gas enters the pressure storage bag can be increased, and a pressure difference can be effectively formed, thereby causing the pressure storage bag to expand, thereby quickly adjusting the level of positive airway pressure. At the same time, it is convenient to disassemble and install the pressure storage bag, oxygen input mechanism and oxygen output mechanism, and it is convenient to replace various components, which is conducive to use.

[0013] In a further technical solution, the oxygen input mechanism includes an oxygen input tube and a connector, one end of the oxygen input tube is connected to the pressure gas storage bag, and the other end is connected to the connector.

[0014] By adopting the above technical solution, the oxygen input tube can be conveniently connected to oxygen supply equipment such as a central oxygen supply machine or an oxygen generator through the cooperation of the oxygen input tube and the connector, which is convenient for use.

[0015] In a further technical solution, the oxygen output mechanism includes an oxygen output pipe and a pressure regulating pipe, both ends of the pressure regulating pipe are respectively connected to the oxygen output pipe and the pressure storage bag, and the pressure gauge and the pressure regulating assembly are both arranged on the pressure regulating pipe.

[0016] By adopting the above technical solution, the pressure gauge and the pressure regulating assembly are directly arranged on the pressure regulating pipe, eliminating additional connectors and pipelines, simplifying the structure of the device, reducing the possibility of failure and leakage, and improving the reliability and stability of the device.

[0017] In a further technical solution, the pressure regulating assembly includes a sealing sleeve, which is sleeved on the pressure regulating tube and slidably connected to the pressure regulating tube. The surface of the pressure regulating tube is provided with a plurality of pressure relief holes which can be blocked by the sealing sleeve.

[0018] By adopting the above technical solution, the sealing sleeve is connected to the pressure regulating tube by sliding, so that the adjustment of the pressure regulating assembly is more flexible and accurate, and it is convenient to open or block the pressure relief holes. When the sealing sleeve is slid to close all the pressure relief holes, the output gas pressure of the oxygen output tube is the maximum. When the sealing sleeve is slid to open all the pressure relief holes, the output gas pressure of the oxygen output tube is 0. By adjusting the size of the positive airway pressure, the different ventilation needs of the patient can be met, and the ventilation quality and treatment effect of the patient can be improved. In the specific ventilation process, by sliding the sealing sleeve to open all the pressure relief holes, the doctor observes the collapsed lung on the affected side through the thoracoscope display, and at the same time, under the guidance of the pressure gauge reading, gradually adjusts the sealing sleeve to block the pressure relief holes. It can be seen that the collapsed lung on the affected side gradually expands. Within the limit allowed by the surgeon's operation, the expansion degree is determined, and then the position of the sealing sleeve is fixed. With the limited expansion of the collapsed lung on the affected side, a certain degree of oxygen exchange can be carried out to reduce the occurrence of hypoxemia, thereby preventing possible related complications.

[0019] In a further technical solution, the pressure regulating tube is sleeved on the oxygen output tube and is in sealed communication with the oxygen output tube.

[0020] By adopting the above technical solution, the pressure regulating tube is sleeved on the oxygen output tube, which is convenient for disassembly and installation, making operation and maintenance more convenient.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0022] The utility model can adjust the size of the positive airway pressure output according to the pressure displayed on the pressure gauge, so that the collapsed lung on the surgical side can be properly expanded, and oxygen intake can be increased, which is helpful to keep the patient's airway unobstructed, reduce respiratory resistance, and improve oxygenation and ventilation functions. For patients whose single-lung ventilation cannot meet the oxygen supply demand, it can improve hypoxemia to a certain extent, prevent possible respiratory complications, and promote patient recovery. It also has simple structure and principle, convenient operation, easy to use, and low manufacturing cost, thereby effectively reducing the patient's medical expenses and is conducive to promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0026] Figure 3 A schematic diagram of the internal structure of the connecting pipe of the utility model.

[0027] Figure numerals: 1-pressure air storage bag, 2-pressure gauge, 3-connecting pipe, 4-inlet pipe, 5-outlet pipe, 6-oxygen input pipe, 7-connector, 8-oxygen output pipe, 9-pressure regulating pipe, 10-sealing sleeve, 11-pressure relief hole. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment 1:

[0030] See also Figure 1The present embodiment provides an adjustable continuous positive airway pressure device, comprising a pressure air storage bag 1, the pressure air storage bag 1 is connected with an oxygen input mechanism and an oxygen output mechanism, the oxygen input mechanism comprises an oxygen input tube 6 and a connector 7, one end of the oxygen input tube 6 is connected with the pressure air storage bag 1, and the other end is connected with the connector 7, the connector 7 is used to connect with an oxygen supply device, the oxygen output mechanism comprises an oxygen output tube 8 and a pressure regulating tube 9, the oxygen output tube 8 is used to connect with a tracheal catheter, one end of the pressure regulating tube 9 is connected with the pressure air storage bag 1, and the other end is sleeved on the oxygen output tube 8 and is sealed and connected with the oxygen output tube 8, the pressure regulating tube 9 is provided with a pressure gauge 2 for displaying the pressure in the airway and a pressure regulating component for regulating the positive airway pressure.

[0031] Specifically, the utility model can adjust the size of the positive airway pressure output according to the pressure displayed on the pressure gauge 2, so that the collapsed lung on the surgical side can be properly expanded, and oxygen intake can be increased, which helps to keep the patient's airway unobstructed, reduce respiratory resistance, and improve oxygenation and ventilation functions. For patients whose single-lung ventilation cannot meet their oxygen supply needs, it can improve hypoxemia to a certain extent, prevent possible respiratory complications, and promote patient recovery. In addition, the utility model has a simple structure and principle, is easy to operate, easy to use, and has a low manufacturing cost, thereby effectively reducing the patient's medical expenses and being conducive to promotion.

[0032] In this embodiment, see Figure 2 The pressure regulating assembly includes a sealing sleeve 10, which is sleeved on the pressure regulating tube 9 and slidably connected to the pressure regulating tube 9. The surface of the pressure regulating tube 9 is provided with a plurality of pressure relief holes 11 which can be blocked by the sealing sleeve 10.

[0033] Specifically, the sealing sleeve 10 is slidably connected to the pressure regulating tube 9, so that the adjustment of the pressure regulating assembly is more flexible and precise, and it is convenient to open or block the pressure relief holes 11. When the sealing sleeve 10 is slid to close all the pressure relief holes 11, the output gas pressure of the oxygen output tube 8 is maximum. When the sealing sleeve 10 is slid to open all the pressure relief holes 11, the output gas pressure of the oxygen output tube 8 is 0. By adjusting the size of the positive airway pressure, the different ventilation needs of the patients can be met, thereby improving the ventilation quality and treatment effect of the patients.

[0034] The specific usage method of this embodiment is as follows:

[0035] First, connect the oxygen input tube 6 to the central oxygen supply device through the connector 7. The set flow rate of the central oxygen supply device is usually 5L / min or above to ensure normal oxygen supply. Then slide the sealing sleeve 10 to open all the pressure relief holes 11, and connect the oxygen output tube 8 to the endotracheal tube to ensure that oxygen is input into the patient's airway. During ventilation, the doctor observes the collapsed lung on the affected side through the thoracoscope display. At the same time, under the guidance of the reading of the pressure gauge 2, the sealing sleeve 10 is gradually adjusted to block the pressure relief hole 11. It can be seen that the collapsed lung on the affected side gradually expands. Within the limit allowed by the surgeon's operation, the degree of expansion is determined, and then the position of the sealing sleeve 10 is fixed. With the limited expansion of the collapsed lung on the affected side, a certain degree of oxygen exchange can be carried out to reduce the occurrence of hypoxemia, thereby preventing possible related complications.

[0036] Embodiment 2:

[0037] This embodiment is obtained by further optimizing the embodiment 1. Figure 3 The pressure air storage bag 1 is provided with a connecting pipe 3, the other end of the connecting pipe 3 is connected to the pressure regulating pipe 9, an air inlet pipe 4 and an air outlet pipe 5 are provided inside the connecting pipe 3, both the air inlet pipe 4 and the air outlet pipe 5 are connected to the pressure air storage bag 1, the diameter of the air inlet pipe 4 is larger than the diameter of the air outlet pipe 5, one end of the air inlet pipe 4 extends through the connecting pipe 3 and is connected to the oxygen input pipe 6.

[0038] Specifically, since the diameter of the air inlet pipe 4 is larger than the diameter of the air outlet pipe 5, the speed at which the gas enters the pressure storage bag 1 can be increased, and a pressure difference can be effectively formed, thereby causing the pressure storage bag 1 to expand, thereby quickly adjusting the level of positive airway pressure. At the same time, it is convenient to disassemble and install the pressure storage bag 1, the oxygen input mechanism and the oxygen output mechanism, and it is convenient to replace each component, which is conducive to use.

[0039] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An adjustable continuous positive airway pressure device, characterized in that: The invention comprises a pressure air storage bag (1), wherein the pressure air storage bag (1) is connected to an oxygen input mechanism and an oxygen output mechanism, the other end of the oxygen input mechanism is connected to an oxygen supply device, and the other end of the oxygen output mechanism is connected to a tracheal tube, and the oxygen output mechanism is provided with a pressure gauge (2) for displaying the pressure in the airway and a pressure regulating component for regulating the positive airway pressure.

2. An adjustable continuous positive airway pressure device according to claim 1, characterized in that: The pressure storage bag (1) is provided with a connecting pipe (3), the other end of which is connected to the oxygen output mechanism, an air inlet pipe (4) and an air outlet pipe (5) are provided inside the connecting pipe (3), both the air inlet pipe (4) and the air outlet pipe (5) are connected to the pressure storage bag (1), the diameter of the air inlet pipe (4) is larger than the diameter of the air outlet pipe (5), and one end of the air inlet pipe (4) extends through the connecting pipe (3) and is connected to the oxygen input mechanism.

3. An adjustable continuous positive airway pressure device according to claim 1 or 2, characterized in that: The oxygen input mechanism comprises an oxygen input pipe (6) and a connector (7); one end of the oxygen input pipe (6) is connected to the pressure gas storage bag (1), and the other end is connected to the connector (7).

4. An adjustable continuous positive airway pressure device according to claim 1 or 2, characterized in that: The oxygen output mechanism comprises an oxygen output pipe (8) and a pressure regulating pipe (9), the two ends of the pressure regulating pipe (9) are respectively connected to the oxygen output pipe (8) and the pressure storage bag (1), and the pressure gauge (2) and the pressure regulating assembly are both arranged on the pressure regulating pipe (9).

5. An adjustable continuous positive airway pressure device according to claim 4, characterized in that: The pressure regulating assembly comprises a sealing sleeve (10), the sealing sleeve (10) being sleeved on the pressure regulating tube (9) and being slidably connected to the pressure regulating tube (9), and a plurality of pressure relief holes (11) which can be blocked by the sealing sleeve (10) are provided on the surface of the pressure regulating tube (9).

6. An adjustable continuous positive airway pressure device according to claim 4, characterized in that: The pressure regulating tube (9) is sleeved on the oxygen output tube (8) and is in sealed communication with the oxygen output tube (8).

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