Tube for taking out viscous foreign matters in airway
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-03-20
AI Technical Summary
Existing emergency medical devices are unable to provide sufficient negative pressure to remove sticky foreign objects, resulting in patients with airway obstruction not being effectively treated.
A tube for removing viscous foreign objects from the airway is designed. A sealed space is formed by the suction port at the end of the tube and the external airbag. Combined with pulsed negative pressure suction, the foreign object is directly sucked out, avoiding secondary damage.
It achieves efficient and safe removal of sticky foreign objects, simplifies operation, is suitable for home first aid, and can save lives in emergency situations.
Smart Images
Figure CN224008455U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of airway viscous foreign body extraction tubes. BACKGROUND
[0002] In daily life, children, adults and the elderly have a large number of cases of food blocking the airway and causing suffocation every year. In daily life, a large number of lives have been saved by using the Heimlich first aid method, and first aid devices designed using the principle of the Heimlich first aid method have appeared on the market. However, these devices and the Heimlich first aid method have limitations, and cannot provide strong negative pressure to attract out the foreign matter for tightly blocked and viscous foreign matter. SUMMARY
[0003] The purpose of the utility model is to provide a kind of airway viscous foreign body extraction tube, to solve the problem that the existing first aid device cannot provide strong negative pressure to attract out the foreign matter for tightly blocked and viscous foreign matter.
[0004] To solve the above problems, the technical scheme of the utility model is as follows:
[0005] An airway viscous foreign body extraction tube includes a cannula, the tail end of the cannula is closed, an suction port is formed on the wall of the tail end of the cannula, a gas bag is wrapped around the cannula, the head end of the cannula is connected to a suction device, the suction device includes a three-way valve and a suction cylinder, the lower end of the suction cylinder is connected to the head end of the cannula through a first one-way valve, the inlet of the three-way valve is connected to the lower end of the suction cylinder, one of the inlets is connected to a second one-way valve, and the other inlet is connected to the gas bag through a hose, a piston is arranged in the suction cylinder, and the piston is fixedly connected to a pressure handle through a pulling rod.
[0006] The utility model has the advantages that unlike the existing device which provides negative pressure suction for the oral cavity by sealing the outside of the lips, the utility model allows the patient to insert the device into the oral cavity and block the esophagus by himself or with the help of others, creating a sealed space, and then the suction device generates pulse negative pressure to provide instantaneous high negative pressure, which can suck out the foreign matter at once without causing secondary harm to the patient. The product is simple and efficient, and can be kept at home to save lives in emergency situations. BRIEF DESCRIPTION OF DRAWINGS
[0007] The utility model will be further described below with reference to the drawings:
[0008] Figure 1 is a schematic diagram of the three-dimensional structure of the utility model,
[0009] Figure 2 is a schematic diagram of the cross-sectional structure of the utility model,
[0010] Figure 3 is a schematic diagram of the anatomy of the oral cavity and airway of the human body,
[0011] Figure 4 As the schematic view when the utility model is applied to the human body,
[0012] Figure 5 As the schematic view when the utility model is applied to the human body.
[0013] In the figure: pressing handle 1, pull rod 2, hand piece 3, second check valve 4, three-way valve 5, hose 6, air bag 7, suction cylinder 8, first check valve 9, cannula 10, suction port 11, piston 12. DETAILED DESCRIPTION
[0014] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0015] As shown in Figure 1 and 2 , a tracheal viscous foreign body removal tube, including cannula 10, cannula 10 tail end is closed, and the suction port 11 on the tail end side wall is opened, and the air bag 7 is wrapped outside the cannula 10, and the head end of the cannula 10 is connected with the suction device, and the suction device includes three-way valve 5 and suction cylinder 8, and the lower end of the suction cylinder 8 is connected with the head end of the cannula 10 through the first check valve 9, and the three-way valve 5 inlet is communicated at the lower end of the suction cylinder 8, and one of the inlets is communicated with the second check valve 4, and the other inlet is communicated with the air bag 7 through the hose 6, and the piston 12 is arranged in the suction cylinder 8, and the piston 12 is fixedly connected with the pressing handle 1 through the pull rod 2.
[0016] The working process of the utility model is as follows: as shown in Figures 1 to 5 , when the viscous foreign body is stuck in the airway and cannot be removed, the product is inserted into the throat, as shown in Figure 3 , the airway is in front of the human body structure, and the esophagus is in the back. The product is designed to be curved according to the human body structure, as shown in Figure 4 , when inserted into the throat, the tail end of the cannula 10 can just abut against the esophagus, and the suction port 11 on the tail end side wall can be aligned with the airway. At this time, the three-way valve 5 is rotated to the air bag 7 and the suction cylinder 8, and the air bag 7 is inflated after the piston 12 is pressed, at this time, the air bag 7 is inflated as shown in Figure 5 Comparison Figure 4It can be seen that when the air bag 7 is inflated, the area where the trachea needs to provide negative pressure for suction forms a closed space, at this time the negative pressure concentration effect is significantly improved. Next, rotate the three-way valve 5, connect the second one-way valve 4 with the cannula 10, so that the air bag 7 is in a closed state, pull the piston 12 upwards, at this time the second one-way valve 4 is closed and the first one-way valve is opened, so that the gas at the tracheal obstruction moves from the suction port 11, and the negative pressure at the obstruction is formed to suck out the foreign matter, when the foreign matter is not sucked out in one operation, press the piston 12 through the pressure handle 1 and the pull rod 2, at this time the air in the suction cylinder 8 is blocked by the first one-way valve and cannot enter the cannula 10, but can only be discharged from the second one-way valve 4, then pull the piston 12 upwards again, so as to repeatedly provide negative pressure for the tracheal foreign matter obstruction area to suck out the foreign matter.
[0017] Therefore, the simple tracheal viscous foreign matter removing device can be used at home, the air bag 7 is filled to block the laryngeal part to provide a closed space for the negative pressure suction area, and the suction effect is significantly improved. When the Heimlich first aid method cannot provide sufficient negative pressure to remove the tracheal foreign matter, the product is simple and efficient, and is commonly used at home, so that life can be saved in an emergency.
[0018] The cannula 10 is a curved pipeline made of medical silica gel. The curved pipeline can conveniently insert the cannula 10 into the trachea and make the cannula 10 more accurately abut against the esophagus.
[0019] The tail end of the cannula 10 is semispherical. The semispherical tail end has a certain guiding effect, so as to avoid scratching the laryngeal tube during the process of inserting the cannula 10.
[0020] The hand abutting pieces 3 are symmetrically arranged at both sides of the cylinder port of the suction cylinder 8. The hand abutting pieces 3 can have good antiskid effect and facilitate stable holding of the user during operation.
[0021] The content described in the embodiments of the present application is only a list of implementation forms of the application concept, and the protection scope of the present application should not be regarded as limited to the specific forms described in the embodiments, and the protection scope of the present application also extends to equivalent technical means that can be thought of by those skilled in the art according to the application concept.
Claims
1. A tube for removing viscous foreign bodies from the airway, characterized in that: The device includes an insertion tube (10), which is closed at the tail end. A suction port (11) is provided on one side of the tube wall at the tail end. An air bag (7) is wrapped around the insertion tube (10). The head end of the insertion tube (10) is connected to a suction device. The suction device includes a three-way valve (5) and a suction cylinder (8). The lower end of the suction cylinder (8) is connected to the head end of the insertion tube (10) through a first one-way valve (9). The inlet of the three-way valve (5) is connected to the lower end of the suction cylinder (8), one of the inlets is connected to the second one-way valve (4), and the other inlet is connected to the air bag (7) through a hose (6). A piston (12) is provided inside the suction cylinder (8). The piston (12) is fixedly connected to the pressure handle (1) through a pull rod (2).
2. The airway viscous foreign body removal tube according to claim 1, characterized in that: The cannula (10) is a curved tube made of medical silicone.
3. The airway viscous foreign body removal tube according to claim 1, characterized in that: The end of the cannula (10) is hemispherical.
4. A viscous foreign body removal tube according to any one of claims 1 to 3, characterized in that: Hand rests (3) are symmetrically provided on both sides of the nozzle of the suction cylinder (8).