Respiratory tract anti-reflux first-aid delivery pipe

Abstract

The invention relates to the technical field of medical instruments, and discloses a respiratory tract anti-reflux first-aid delivery pipe which comprises a pipe body, the bottom end of the pipe body is fixedly connected with an air bag, the right end of the air bag is fixedly connected with an intubation head, and the inner wall of the bottom end of the pipe body is fixedly connected with a first limiting piece. An anti-backflow ball is attached to the inner wall of the first limiting piece, a second limiting piece is fixedly connected to the inner wall of the left end of the air bag, the right side surface of the anti-backflow ball is attached to the left side surface of the second limiting piece, an inflation connecting pipe is fixedly connected to the top end of the pipeline body, and an indication balloon is fixedly connected to the top end of the inflation connecting pipe. According to the invention, substances such as gastric contents are prevented from flowing back into the trachea through the air bag, the anti-reflux effect is also achieved through the arrangement of the anti-reflux ball, dual anti-reflux protection is formed through the mutual cooperation of the anti-reflux ball and the air bag, and the anti-reflux reliability is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an anti-reflux emergency delivery tube for the respiratory tract. Background Art

[0002] In the field of emergency medicine, respiratory tract management is a crucial link. Emergency respiratory tract delivery tubes are key medical devices used in emergency medical scenarios to establish and maintain the patency of a patient's respiratory tract and ensure gas exchange. When a patient is unable to independently maintain the patency of the respiratory tract due to reasons such as loss of consciousness, laryngeal edema, foreign body obstruction, or respiratory failure, a delivery tube is inserted through the nasal cavity, oral cavity, or tracheotomy site to directly connect the trachea to the outside world, ensuring oxygen input and carbon dioxide output and avoiding asphyxiation.

[0003] Existing respiratory tract delivery tubes consist of a catheter body and an airbag. The airbag is used to fix the end of the catheter inserted into the patient's body and at the same time achieve an anti-reflux effect. However, during use, such delivery tubes still have a risk of reflux. Summary of the Invention

[0004] To make up for the above deficiencies, the present invention provides an anti-reflux emergency delivery tube for the respiratory tract, aiming to improve the problem that the existing delivery tube only uses an airbag for anti-reflux, resulting in a poor anti-reflux effect.

[0005] To achieve the above object, the present invention provides the following technical solution: An anti-reflux emergency delivery tube for the respiratory tract, including a pipeline body, an airbag is fixedly connected to the bottom end of the pipeline body, an intubation head is fixedly connected to the right end of the airbag, a limiting member one is fixedly connected to the inner wall of the bottom end of the pipeline body, an anti-reflux ball is attached to the inner wall of the limiting member one, a limiting member two is fixedly connected to the inner wall of the left end of the airbag, and the right surface of the anti-reflux ball is in contact with the left surface of the limiting member two. An inflation connection tube is fixedly connected to the top end of the pipeline body, an indicating balloon is fixedly connected to the top end of the inflation connection tube, an inner tube is fixedly connected to the inner wall of the pipeline body, and a heating mechanism is arranged on the surface of the inner tube.

[0006] Preferably, the heating mechanism includes a heating wire, the heating wire is fixedly connected to the surface of the inner tube, a heating protection shell is fixedly connected to the top end of the heating wire, a touch electrode is fixedly connected to the top end of the heating protection shell, an insulating shell is fixedly connected to the surface of the touch electrode, and the heating protection shell is fixedly connected to the inner walls of both the pipeline body and the extension tube.

[0007] Preferably, the insulating shell is fixedly connected to the heating protection shell, and the heating wire is fixedly connected to the inner wall of the pipeline body.

[0008] Preferably, an extension tube is fixedly connected to the top end of the pipeline body, and a connector is fixedly connected to the top end of the extension tube.

[0009] Preferably, a flange is fixedly connected to the surface of the connector, and the bottom surface of the flange is in fit with the top surface of the extension tube.

[0010] Preferably, a Murphy hole is provided at the top of the intubation head, and a tip is provided at the right end of the intubation head.

[0011] Preferably, an inflation capillary tube is fixedly connected to the top end of the indicating balloon, and a one-way valve is fixedly connected to the inner wall of the indicating balloon.

[0012] Preferably, both the pipeline body and the inner tube are made of polyetheretherketone, and both the heating protective shell and the insulating shell are made of silicone rubber.

[0013] The present invention has the following beneficial effects:

[0014] 1. In the present invention, the gastric contents are prevented from flowing back into the trachea through the airbag, and the anti-reflux ball provided at the end of the pipeline body can also play an anti-reflux role. Through the mutual cooperation of the anti-reflux ball and the airbag, a double anti-reflux protection is formed, further improving the reliability of anti-reflux, and is especially suitable for the first-aid scenarios of patients in different body positions.

[0015] 2. In the present invention, by providing a heating wire, the delivery tube has the ability to heat the fluid inside the tube, reducing the discomfort and complications caused by the patient inhaling cold air. Through the touch-type electrode, the delivery tube can be connected to the power supply for heating in a touch-type manner, avoiding the influence of liquid on the power connection in a complex first-aid environment, and improving the applicability and reliability of the delivery tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic perspective view of the anti-reflux first-aid delivery tube for the respiratory tract proposed by the present invention;

[0017] Figure 2 is an exploded view of the pipeline body of the anti-reflux first-aid delivery tube for the respiratory tract proposed by the present invention;

[0018] Figure 3 is a schematic cross-sectional view of the pipeline body of the anti-reflux first-aid delivery tube for the respiratory tract proposed by the present invention;

[0019] Figure 4 is a schematic cross-sectional view of the indicating balloon of the anti-reflux first-aid delivery tube for the respiratory tract proposed by the present invention.

[0020] Legend:

[0021] 1. Pipeline main body; 2. Extension pipe; 3. Inflatable connecting pipe; 4. Heating protective shell; 5. Airbag; 6. Intubation head; 7. Tip; 8. Murphy hole; 9. Indicator balloon; 10. Limiting member 1; 11. Anti-reflux ball; 12. Limiting member 2; 13. Touch-type electrode; 14. Heating wire; 15. Inner pipe; 16. Insulating shell; 17. Inflatable thin pipe; 18. Check valve; 19. Connector; 20. Flange. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0023] Refer to Figures 1 - 4 As shown in the figure, an embodiment provided by the present invention: an anti-reflux first aid delivery tube for the respiratory tract includes a pipeline main body 1. An airbag 5 is fixedly connected to the bottom end of the pipeline main body 1. An intubation head 6 is fixedly connected to the right end of the airbag 5. A limiting member 1 10 is fixedly connected to the inner wall of the bottom end of the pipeline main body 1. An anti-reflux ball 11 is attached to the inner wall of the limiting member 1 10. A limiting member 2 12 is fixedly connected to the inner wall of the left end of the airbag 5. The right surface of the anti-reflux ball 11 is in contact with the left surface of the limiting member 2 12. An inflatable connecting pipe 3 is fixedly connected to the top end of the pipeline main body 1. An indicator balloon 9 is fixedly connected to the top end of the inflatable connecting pipe 3. An inner pipe 15 is fixedly connected to the inner wall of the pipeline main body 1. A heating mechanism is arranged on the surface of the inner pipe 15;

[0024] Through the coordinated cooperation of the limiting member 1 10 and the limiting member 2 12, the anti-reflux ball 11 fits into the concave surface of the limiting member 2 12 on the inner wall of the airbag 5 during normal ventilation, thus ensuring unobstructed gas flow; when there is gastric content reflux or a tendency of negative pressure countercurrent, the impact force of the countercurrent fluid will push the anti-reflux ball 11 to move in the reverse direction to block the limiting member 1 10. Through the self-adaptive blocking mechanism based on fluid dynamics, the delivery tube can stably work in different patient positions, is suitable for first aid patients with impaired consciousness and weakened vomiting reflex, and reduces the risk of complications such as aspiration pneumonia from the source.

[0025] Refer to Figure 3 As shown in the figure, the heating mechanism includes a heating wire 14. The heating wire 14 is fixedly connected to the surface of the inner pipe 15. A heating protective shell 4 is fixedly connected to the top end of the heating wire 14. A touch-type electrode 13 is fixedly connected to the top end of the heating protective shell 4. An insulating shell 16 is fixedly connected to the surface of the touch-type electrode 13. The heating protective shell 4 is fixedly connected to the inner walls of both the pipeline main body 1 and the extension pipe 2;

[0026] The heating wire 14 is tightly wound around the surface of the inner tube 15 in a spiral manner, enabling heat to be evenly conducted to the fluid inside the tube, thereby shortening the heat conduction path, reducing heat loss, and ensuring that the input gas can reach the physiologically appropriate temperature within a short distance. The heating protection shell 4 wraps the part of the heating wire 14 extending outside the pipe, and at the same time facilitates the connection of the heating wire 14 to the power supply. Through the combined action of the touch electrode 13 and the insulating shell 16, the risk of electric leakage in a humid environment is avoided, and the safety of the delivery pipe is improved.

[0027] Refer to Figure 3 , the insulating shell 16 and the heating protection shell 4 are fixedly connected, and the heating wire 14 and the inner wall of the pipe body 1 are fixedly connected. The bottom of the heating protection shell 4 is fixed to the inner wall of the extension pipe 2, and at the same time the bottom of the heating protection shell 4 is fixed to the top of the pipe body 1. Through the heating protection shell 4, the excess heat generated by the heating wire 14 can diffuse through the inner wall of the extension pipe 2 to achieve uniform heating of the fluid in the pipe.

[0028] Refer to Figure 1 , the top of the pipe body 1 is fixedly connected with an extension pipe 2, the top of the extension pipe 2 is fixedly connected with a connector 19, and the extension pipe 2 is made of corrugated pipe material, enabling the delivery pipe to be flexibly adjusted in length according to the patient's body shape, body position, and different first aid scenarios, ensuring that the delivery pipe can be accurately connected to the patient's respiratory tract without being affected by being too long or too short.

[0029] Refer to Figure 4 , the surface of the connector 19 is fixedly connected with a flange 20, and the bottom surface of the flange 20 is in contact with the top surface of the extension pipe 2. Through the flange 20, the connection between the connector 19 and the extension pipe 2 can be assisted in being sealed, and at the same time the flange 20 has a guiding function, which can shorten the assembly time of the first aid equipment.

[0030] Refer to Figure 1 , the Murphy hole 8 is opened at the top of the intubation head 6, and the tip 7 is provided at the right end of the intubation head 6. When the tip 7 of the intubation head 6 is blocked, for example, when the tip 7 is close to the tracheal wall, the gas can still flow through the Murphy hole 8, thereby preventing the intubation head 6 from being completely blocked. The tip 7 at the right end of the intubation head 6 is designed in a streamline shape, which can reduce the friction coefficient when the intubation head 6 contacts the mucosa.

[0031] Refer to Figure 4, indicating that the top of the indicating balloon 9 is fixedly connected to the inflatable thin tube 17, the inner wall of the indicating balloon 9 is fixedly connected to the one-way valve 18, and the elastic modulus of the indicating balloon 9 is exactly the same as that of the airbag 5. When gas is injected through the inflatable thin tube 17, the balloon 9 and the airbag 5 expand synchronously. Medical staff can quickly judge the actual pressure state of the airbag 5 by observing the filling degree of the balloon 9 and the feel of pressing and rebounding. After inflation, the one-way valve 18 can prevent gas from flowing back, thus maintaining the stable sealing state of the airbag 5 and reducing the risk of gastric content reflux.

[0032] Refer to Figure 1 , both the pipeline main body 1 and the inner tube 15 are made of polyetheretherketone material, and both the heating protective shell 4 and the insulating shell 16 are made of silicone rubber material. The polyetheretherketone material has high temperature resistance, can withstand the heat generated by the heating wire and is not easily deformed due to heating. It can maintain a stable shape during the intubation process, is not easily broken or deformed, can adapt to different intubation operation forces and angles, will not cause immune reactions or other adverse reactions in the human body, and has strong chemical corrosion resistance, which is convenient for cleaning and disinfection;

[0033] The silicone rubber material has good insulation performance, can provide reliable electrical insulation protection, effectively isolate the heating wire and the touch electrode, ensure the safe use of the delivery tube, and can also adapt to the thermal expansion and contraction of the heating wire during the heating and cooling process. During long-term use, it can maintain good physical and chemical properties, is not easily cracked, hardened or embrittled and other aging phenomena, and can ensure the long-term effectiveness of the insulating layer.

[0034] Working principle: In the use of the delivery tube, gas is filled into the airbag 5 through the inflatable thin tube 17. While fixing the position of the intubation head 6 through the airbag 5, it can prevent substances such as gastric contents from flowing back into the trachea;

[0035] The anti-reflux ball 11 arranged at the end of the pipeline main body 1 can also play an anti-reflux role. Among them, the end of the pipeline main body 1 is fixedly connected to the first limiting member 10, the inner diameter of the first limiting member 10 is slightly smaller than that of the anti-reflux ball 11, and at the same time, the top of the airbag 5 is fixedly connected to the end of the pipeline main body 1. A second limiting member 12 is arranged inside the top of the airbag 5, and the top of the second limiting member 12 is a concave surface that fits the anti-reflux ball 11. When the delivery tube is in normal use, the anti-reflux ball 11 is located on the surface of the second limiting member 12 under the action of air flow, and does not affect the normal flow of gas;

[0036] When there is a tendency of reflux, the anti-reflux ball 11 will move with the liquid or air flow in the reflux direction, block the first limiting member 10, and prevent reflux from occurring. Through the mutual cooperation of the anti-reflux ball 11 and the airbag 5, a double anti-reflux protection is formed, further improving the reliability of anti-reflux, especially suitable for the first aid scenario of patients in different body positions;

[0037] On the other hand, by arranging a heating wire 14 in the interlayer between the pipeline main body 1 and the inner pipe 15, the delivery pipe is enabled to heat the fluid inside the pipe, so that the gas entering the patient's respiratory tract can be maintained at an appropriate temperature, avoiding the stimulation of the respiratory tract by cold air and reducing the discomfort and complications caused by the patient inhaling cold air.

[0038] In addition, by connecting the insulating shell 16 and the touch-type electrode 13 to the top of the heating wire 14, the delivery pipe can be connected to the power supply for heating in a touch-type manner, avoiding the influence of the liquid that may exist in the complex first-aid environment on the power connection, and improving the applicability and reliability of the delivery pipe in the actual first-aid scenario.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Respiratory anti-reflux emergency delivery tube, including a pipe body (1), characterized in that: The bottom end of the pipe body (1) is fixedly connected with an airbag (5). The right end of the airbag (5) is fixedly connected with an intubation head (6). The inner wall of the bottom end of the pipe body (1) is fixedly connected with a first limiting member (10). An anti-reflux ball (11) is attached to the inner wall of the first limiting member (10). The inner wall of the left end of the airbag (5) is fixedly connected with a second limiting member (12). The right surface of the anti-reflux ball (11) is in contact with the left surface of the second limiting member (12). The top end of the pipe body (1) is fixedly connected with an inflation connecting pipe (3). The top end of the inflation connecting pipe (3) is fixedly connected with an indicating balloon (9). The inner wall of the pipe body (1) is fixedly connected with an inner pipe (15). A heating mechanism is arranged on the surface of the inner pipe (15).

2. The respiratory anti-reflux emergency delivery tube according to claim 1, characterized in that: The heating mechanism includes a heating wire (14). The heating wire (14) is fixedly connected to the surface of the inner pipe (15). The top end of the heating wire (14) is fixedly connected with a heating protective shell (4). The top end of the heating protective shell (4) is fixedly connected with a touch electrode (13). An insulating shell (16) is fixedly connected to the surface of the touch electrode (13). The heating protective shell (4) is fixedly connected to the inner walls of both the pipe body (1) and the extension pipe (2).

3. The respiratory anti-reflux emergency delivery tube according to claim 2, characterized in that: The insulating shell (16) is fixedly connected to the heating protective shell (4). The heating wire (14) is fixedly connected to the inner wall of the pipe body (1).

4. The respiratory anti-reflux emergency delivery tube according to claim 1, wherein: The top end of the pipe body (1) is fixedly connected with an extension pipe (2). The top end of the extension pipe (2) is fixedly connected with a connector (19).

5. The respiratory anti-reflux emergency delivery tube according to claim 4, characterized in that: A flange (20) is fixedly connected to the surface of the connector (19). The bottom surface of the flange (20) is in contact with the top surface of the extension pipe (2).

6. The respiratory anti-reflux emergency delivery tube according to claim 1, characterized in that: A Murphy hole (8) is formed at the top of the intubation head (6). A tip (7) is arranged at the right end of the intubation head (6).

7. The respiratory anti-reflux emergency delivery tube according to claim 1, wherein: An inflation capillary (17) is fixedly connected to the top end of the indicating balloon (9). A one-way valve (18) is fixedly connected to the inner wall of the indicating balloon (9).

8. The respiratory anti-reflux emergency delivery tube according to claim 2, characterized in that: Both the pipe body (1) and the inner pipe (15) are made of polyether ether ketone. Both the heating protective shell (4) and the insulating shell (16) are made of silicone rubber.

Images