Medical intra-tracheal one-way valve device and suction cleaning system using same

Abstract

The utility model relates to the technical field of medical apparatuses and instruments, and provides a medical intra-tracheal one-way valve device and a suction cleaning system using the medical intra-tracheal one-way valve device. Comprising a support assembly and a one-way valve assembly. The support assembly is provided with a supporting part and a protection part. The one-way valve assembly is provided with a main valve, the main valve is provided with a supporting slope in an extending mode, and more than two auxiliary valves are arranged on the supporting slope. The window of the auxiliary valve is arranged on the supporting slope surface, the covering film of the auxiliary valve is attached to the outer slope surface of the supporting slope surface, and the end, away from the main valve, of the covering film is connected with the supporting slope surface. The one-way valve device has the advantages that during normal breathing, the auxiliary valve is in a closed state, the main valve is closed to prevent external air from entering the target lung during inspiration and is opened to discharge gas or secretions in the target lung during expiration, and during cough, the auxiliary valve is opened to discharge secretions deposited in the one-way valve device in the medical trachea. Meanwhile, rapid exhaust air flow is formed to impact secretions outside the duckbilled main valve, and cleaning of the secretions around the main valve is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a medical endotracheal one-way valve device and a suction and cleaning system using the same. Background Art

[0002] Chronic obstructive pulmonary disease (COPD) is the leading chronic respiratory disease in my country, characterized by high morbidity and mortality. It typically includes chronic bronchitis and obstructive emphysema, primarily manifesting as irreversible chronic airway obstruction and pulmonary hyperinflation, with pathological lung parenchyma manifestations of emphysema. Currently, a widely studied approach is bronchoscopic lung volume reduction, which involves placing a one-way valve in the target area. This works by using the one-way valve to prevent outside air from entering the emphysematous area while allowing residual gas or secretions in the emphysematous area to escape through the valve. This valve restricts ventilation in the emphysematous lung tissue, causing it to collapse, thereby alleviating lung disease.

[0003] At present, most bronchial one-way valves used in clinical practice are duckbill-shaped one-way valves. However, the opening area of the duckbill-shaped one-way valve is limited, and secretions are prone to accumulation, which can block the valve orifice and render it ineffective. It cannot achieve the therapeutic effect of lung volume reduction, and even worse, it may cause obstructive pneumonia and aggravate the patient's condition. Surgery is required to remove the one-way valve and replace it with a new one-way valve, which undoubtedly increases the patient's pain and financial burden. Utility Model Content

[0004] The purpose of the utility model is to provide a medical endotracheal one-way valve device and a suction and cleaning system using the same, so as to solve the problem that the existing duckbill-shaped one-way valve is blocked by secretions and causes the valve valve port to fail to function.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a medical endotracheal one-way valve device, comprising: a bracket assembly and a one-way valve assembly;

[0006] The bracket assembly is provided with a supporting portion and a protecting portion, the supporting portion is used to fix the one-way flap assembly, and the protecting portion is used to protect the one-way flap assembly;

[0007] The one-way valve assembly is provided with a main valve, the main valve is extended to provide a support slope, and the support slope is provided with two or more auxiliary valves; wherein,

[0008] The window of the secondary valve is arranged on the supporting slope, the cover film of the secondary valve is attached to the outer slope of the supporting slope, and one end of the cover film away from the main valve is connected to the supporting slope.

[0009] In an optional embodiment, the supporting portion and the protecting portion are connected via a connecting portion, the supporting portion and the protecting portion are both hollow tubular structures, and the protecting portion surrounds the one-way valve assembly.

[0010] In an optional embodiment, the supporting portion, the protecting portion and the connecting portion are all made of nickel-titanium alloy.

[0011] In an optional embodiment, the number of windows of the secondary valve is more than two, and the outer shape of the cover membrane is the same as the shape of the windows.

[0012] In an optional embodiment, the window shape of the secondary valve is square or circular.

[0013] In an optional embodiment, the window shape of the secondary valve is an equilateral triangle or a trapezoid; wherein, an axis of the equilateral triangle is perpendicular to the projection of the intersection line between the main valve and the support slope, and one side of the equilateral triangle is parallel to the projection of the intersection line between the main valve and the support slope; the long side of the trapezoid is parallel to the projection of the intersection line between the main valve and the support slope.

[0014] On the other hand, the present invention also provides a suction and cleaning system, which uses the medical endotracheal one-way valve device as described above, including: an endotracheal treatment catheter, wherein the syringe of the endotracheal treatment catheter is connected to the insertion tube body.

[0015] The beneficial effects of the present invention are:

[0016] (1) The one-way valve device contains a duckbill-shaped main valve and a secondary valve. During normal breathing, the secondary valve is in a closed state. The main valve closes during inhalation to prevent outside air from entering the target lung, and opens during exhalation to discharge gas or secretions in the target lung. During coughing, the secondary valve opens to discharge secretions accumulated in the one-way valve device in the medical trachea, and at the same time, a rapid exhaust airflow is formed to impact the secretions outside the duckbill-shaped main valve, which helps to clear the secretions around the main valve. In addition, the one-way valve assembly avoids the problem of increasing the exhaust flow rate compared to a single duckbill-shaped valve due to the addition of a secondary valve, which causes the emphysema tissue to collapse rapidly and cause complications such as pneumothorax.

[0017] (2) The auxiliary valve of the one-way valve device can be forced to open, and a catheter is used to inject normal saline into the bronchus at the distal end of the one-way valve device in the medical endotracheal branch through the auxiliary valve window to suction and clean the secretions at the distal end of the bronchus, or to inject therapeutic or anti-inflammatory drugs to reduce the production of secretions or dissolve the secretions, thereby avoiding the need to remove the one-way valve for treatment or replace the one-way valve due to excessive secretions, thereby reducing the patient's surgical pain and economic burden.

[0018] (3) The one-way valve device contains a secondary valve. During normal breathing, the secondary valve is in a closed state. During coughing, the secondary valve opens. Coughing generates a rapid airflow through the main valve and the secondary valve to discharge and release pressure, thereby preventing the one-way valve from shifting or falling off due to a sharp increase in pressure at the distal end of the one-way valve due to the one-way valve not being able to release pressure in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a diagram of the structure of a medical intratracheal one-way valve device provided in one embodiment of the present invention and its working principle during normal breathing.

[0021] Figure 2 This is the open state of the one-way valve assembly when coughing provided in one embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of a medical endotracheal one-way valve device provided in one embodiment of the present invention for clearing secretions during coughing.

[0023] Figure 4 This is a schematic diagram of an endotracheal treatment catheter provided in one embodiment of the present invention.

[0024] Figure 5 This is a schematic diagram of an endotracheal treatment catheter provided in an embodiment of the present invention for cleaning or treatment through a secondary valve.

[0025] Figure 6 This is a schematic structural diagram of a one-way valve assembly provided in one embodiment of the present utility model.

[0026] Figure 7 This is a projection diagram of a trapezoidal window structure provided in one embodiment of the present invention.

[0027] Figure 8 This is a projection diagram of an equilateral triangle window structure provided in one embodiment of the present invention.

[0028] Wherein, the accompanying drawings are marked as follows:

[0029] 1-stent assembly, 2-protection part, 3-connecting part; 4-support part, 5-one-way valve assembly, 6-main valve (duckbill valve), 7-support slope, 8-auxiliary valve, 9-cover membrane, 10-bronchial wall, 11-secretions, 12-endotracheal treatment catheter, 13-syringe, 14-two-way valve, 15-insertion tube body, 16-insertion tube body head end, 17 cleaning fluid or treatment substance. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be located directly or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and cannot be understood as limitations on this technical solution. The terms "first" and "second" are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0032] Example 1

[0033] Please see the attached Figure 1-6 The purpose of this embodiment is to provide a medical endotracheal one-way valve device, including a stent assembly and a one-way valve assembly. The stent assembly is made of nickel-titanium alloy. The nickel-titanium alloy tube is laser cut and then heat-formed to form the stent assembly, or the nickel-titanium alloy wire is laser welded to form a super-elastic stent assembly with shape memory function.

[0034] The stent assembly includes a protective portion, a connecting portion, and a supporting portion. Both the protective portion and the supporting portion of the stent assembly are hollow tubular structures, and the connecting portion is a linear structure connecting the protective portion and the supporting portion. The protective portion encloses the one-way valve assembly. The diameter of the protective portion is smaller than the diameter of the trachea in which it is implanted, preventing the one-way valve assembly from being squeezed and deformed, thereby preventing its function from failing. The diameter of the supporting portion is larger than the diameter of the trachea in which it is implanted. The radial compression force generated by the compression of the supporting portion fixes the medical intratracheal one-way valve device to the inner wall of the bronchus, preventing the medical intratracheal one-way valve device from shifting. The connecting portion connects the protective portion and the supporting portion, and the stent assembly is integrally coated. The one-way valve assembly is located inside the protective portion and is integrally connected to the stent assembly coating. The coating and the one-way valve assembly of the stent assembly are both made of silicone rubber and include a main valve and a secondary valve. The main valve is a duckbill-shaped valve. The length of the duckbill valve orifice is 50% of the inner diameter of the protective portion, and the thickness of the main valve lip is 50μm.

[0035] During normal breathing, the main valve has a one-way ventilation function that closes during inhalation to prevent outside air from entering the target lung, and opens during exhalation to discharge gas or secretions in the target lung. A square window is opened on the supporting slope of the duckbill valve. The window area is 1 / 2 of the area of the single-side supporting slope of the duckbill valve. The window is covered with a square cover membrane with a thickness of 100μm. The area of the auxiliary valve cover membrane is 1.5 times the window area.

[0036] In this embodiment, the window and the cover membrane constitute the auxiliary valve. The opening pressure of the main valve is the expiratory airflow pressure during normal breathing, and the opening pressure of the auxiliary valve is the expiratory airflow pressure during coughing. During normal breathing, the auxiliary valve is in a closed state, and external air cannot enter the target lung, and the gas in the target lung cannot be discharged. The auxiliary valve opens only when coughing or forced to open. This avoids the problem that the exhaust flow rate of the one-way valve assembly increases compared to a single duckbill valve due to the addition of the auxiliary valve, causing the emphysema tissue to collapse rapidly and cause complications such as pneumothorax. When coughing, the opening of the auxiliary valve can discharge the secretions accumulated in the one-way valve device in the medical trachea, and at the same time, a rapid exhaust airflow is formed to impact the secretions outside the duckbill main valve, which helps to clear the secretions around the main valve.

[0037] Example 2

[0038] The purpose of this embodiment is to provide a medical endotracheal one-way valve device. The integral covering of the stent assembly and the one-way valve assembly are made of polyurethane and include a main valve and a secondary valve. The main valve is a duckbill-shaped valve. The length of the duckbill valve orifice is 90% of the inner diameter of the protective portion. The main valve lip is 200μm thick. The support slope of the duckbill valve has two circular windows. The window area is 2 / 3 of the area of the duckbill valve's single-sided support slope. The windows are covered with a circular cover film with a thickness of 1000μm. The area of the secondary valve cover film is 1.2 times the window area. The remaining structure is the same as that of the first embodiment.

[0039] In a preferred embodiment, the secondary valve can be forcibly opened, allowing an endotracheal treatment catheter to inject a cleaning fluid through the secondary valve window into the bronchus distal to the medical endotracheal one-way valve device, thereby aspirating and cleaning distal bronchial secretions, or injecting therapeutic drugs to reduce or eliminate secretions. The aspiration treatment catheter includes a syringe, a connector, and an insertion tube body. The syringe is a conventional 5ml syringe used to inject a cleaning fluid (such as saline) or a therapeutic drug, or to aspirate the post-cleaning mixture. The connector is a conventional Luer two-way valve, which connects the syringe and the insertion tube body to open or close the passage between the two. The insertion tube body is made of polyether block polyamide, with a length of 1000 mm and a diameter not exceeding the inner diameter of the bronchoscope. It can be passed through the bronchoscope to the target lung. The head end of the insertion tube body is conical, and the diameter does not exceed the minimum diameter of the secondary valve window of the medical endotracheal one-way valve device. It can pass through the secondary valve window of the medical endotracheal one-way valve device. The insertion tube body contains 4 microholes on the side of the head end for injecting and spraying cleaning liquids (such as saline) or therapeutic drugs.

[0040] Please see the attached Figure 7-8 In a preferred embodiment, the secondary valve window 81 is shaped like an equilateral triangle or trapezoid; one axis of the equilateral triangle is perpendicular to the projected intersection of the main valve and the support slope, and one side of the equilateral triangle is parallel to the projected intersection of the main valve and the support slope; the long side of the trapezoid is parallel to the projected intersection of the main valve and the support slope. During the upward impact of secretions or airflow, the smaller distal area and larger proximal area facilitate secretion discharge or increase exhaust flow, given a given window area.

[0041] Any modifications, equivalent substitutions and improvements made within the spirit and principles of this utility model should be included in the scope of protection of this utility model.

Claims

1. A medical endotracheal one-way valve device, characterized in that: include: a bracket assembly and a one-way flap assembly; The bracket assembly is provided with a supporting portion and a protecting portion, the supporting portion is used to fix the one-way flap assembly, and the protecting portion is used to protect the one-way flap assembly; The one-way valve assembly is provided with a main valve, the main valve is extended to provide a support slope, and the support slope is provided with two or more auxiliary valves; wherein, The window of the secondary valve is arranged on the supporting slope, the cover film of the secondary valve is attached to the outer slope of the supporting slope, and one end of the cover film away from the main valve is connected to the supporting slope.

2. The medical endotracheal one-way valve device according to claim 1, characterized in that: The supporting portion and the protecting portion are connected via a connecting portion. Both the supporting portion and the protecting portion are hollow tubular structures, and the protecting portion surrounds the one-way valve assembly.

3. The medical endotracheal one-way valve device according to claim 2, characterized in that: The supporting portion, the protecting portion and the connecting portion are all made of nickel-titanium alloy.

4. The medical endotracheal one-way valve device according to claim 1, characterized in that: The number of windows of the auxiliary valve is more than two, and the outer shape of the cover film is the same as the shape of the windows.

5. The medical endotracheal one-way valve device according to claim 1, characterized in that: The window shape of the auxiliary valve is square or circular.

6. The medical endotracheal one-way valve device according to claim 1, characterized in that: The window shape of the secondary valve is an equilateral triangle or a trapezoid; wherein, an axis of the equilateral triangle is perpendicular to the intersection projection of the main valve and the support slope, and one side of the equilateral triangle is parallel to the intersection projection of the main valve and the support slope; the long side of the trapezoid is parallel to the intersection projection of the main valve and the support slope.

7. A suction and cleaning system using the medical endotracheal one-way valve device according to any one of claims 1 to 6, characterized in that: include: An endotracheal treatment tube is provided, wherein the syringe of the endotracheal treatment tube is connected to the insertion tube body.

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