Reinforced nasopharyngeal airway device

Abstract

The utility model relates to a reinforced nasopharyngeal airway device which solves the technical problems that an existing nasopharyngeal airway is easy to press and break and single in connector, the reinforced nasopharyngeal airway device is provided with an oxygen catheter, a sliding check ring, a connector and a guiding piece, the sliding check ring is sleeved on the outer ring of the oxygen catheter, the inner diameter of the sliding check ring is matched with the outer diameter of the oxygen catheter, and the connector is connected with the guiding piece. A fin is arranged on the sliding check ring, one end of the oxygen catheter is hemispherical, and vent holes are evenly distributed in the section, close to the hemispherical end of the oxygen catheter, of the oxygen catheter in a staggered mode. The guiding piece is provided with a guiding wire, the guiding wire penetrates into the oxygen catheter, the oxygen catheter is fixedly connected with the connector, the connector is connected with the guiding piece in an inserted mode, and a reinforcing spring wire is arranged on the inner wall of the oxygen catheter. The nasopharyngeal airway can be widely applied to patients needing to establish nasopharyngeal airway.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, in particular to a reinforced nasopharyngeal airway device. Background Art

[0002] The nasopharyngeal airway is a simple and convenient extra-laryngeal ventilation device used to relieve upper airway obstruction and maintain airway patency. Currently, it is often used as an airway management auxiliary tool by medical staff in departments such as anesthesiology, respiratory medicine, and intensive care, and is an essential tool for providing oxygen through a patent nasopharyngeal airway. The nasopharyngeal airway device is increasingly widely used. During clinical use, it is first necessary to ensure smooth ventilation, and at the same time reduce the damage caused during the placement of the airway device and manage the airway safely.

[0003] The existing clinical nasal airway has deficiencies in function and structure and has room for optimization. During the nasal intubation operation by medical staff, the inclined plane at the end of the airway rubs against the inner wall of the patient's nasal cavity, and the nasal mucosa tissue is easily damaged and bleeds, increasing the risk of infection; it lacks a guiding function during the intubation operation and cannot assist medical staff to complete the placement of the airway more conveniently; although the nasopharyngeal airway is soft, it is easy to be pressed and folded, and is easily flattened by nasal packing in the nasal cavity segment, or is easily flattened or blocked by the posterior tongue drop after entering the oral cavity through the nasal cavity. Different existing oxygen supply devices in clinical practice have numerous interfaces and need to be integrated to meet the connection requirements of different oxygen supply devices and oxygen delivery consumables with different interfaces. Summary of the Invention

[0004] The utility model provides a reinforced nasopharyngeal airway device to solve the technical problems of the existing nasal airway being easy to be pressed and folded and having a single interface.

[0005] The utility model provides a reinforced nasopharyngeal airway device, which is provided with an oxygen delivery tube, a sliding retaining ring, a connector and a guiding member. The sliding retaining ring is sleeved on the outer circle of the oxygen delivery tube, the inner diameter size of the sliding retaining ring matches the outer diameter of the oxygen delivery tube, the sliding retaining ring is provided with wing pieces, one end of the oxygen delivery tube is hemispherical, and ventilation holes are evenly distributed in a staggered manner on the tube section near the hemispherical end of the oxygen delivery tube; the guiding member is provided with a guiding wire, the guiding wire extends into the oxygen delivery tube, the oxygen delivery tube is fixedly connected with the connector, the connector and the guiding member are inserted, and a reinforcing spring wire is arranged on the inner wall of the oxygen delivery tube.

[0006] Preferably, the connector is provided with an oxygen inhalation tube connector, a Luer connector and a ventilator connector. The oxygen inhalation tube connector and the Luer connector are connected by a screw thread, and the Luer connector and the ventilator connector are connected by insertion.

[0007] Preferably, the outer surface of the connector is provided with convex lines or an operating handle.

[0008] Preferably, a guiding ring is further provided on the guiding member. The guiding ring and the guiding wire are fixedly connected by glue, and a tail fin is provided on the guiding ring.

[0009] Advantages of the utility model:

[0010] Through the combination of different components, the oxygen supply device is connected. The oxygen supply device can be a ventilator or an oxygen inhalation tube. It can provide the connection of the oxygen supply interface of the ventilator, and can provide the connection of two different oxygen delivery interfaces in the oxygen inhalation tube, providing rich choices for the connection of oxygen supply interfaces in clinical practice, and providing sufficient oxygen and respiratory support for patients; when medical staff operate to establish a nasopharyngeal ventilation channel, the ventilation duct can be guided and placed through the guiding wire with a guiding intubation. The head end of the duct is arc-shaped and the duct itself is soft and slender, greatly reducing the operation damage in the nasopharyngeal cavity; a strengthening spring is built into the duct to avoid the extrusion of the duct by the tongue falling back, relieve airway obstruction, provide sufficient oxygen and respiratory support for patients, and avoid a series of complications such as hypoxia caused by insufficient oxygen inhalation of patients, which may even directly affect the life safety of patients. Description of the drawings

[0011] Figure 1 is the structural schematic diagram of the utility model;

[0012] Figure 2 is the exploded structural schematic diagram of the utility model;

[0013] Figure 3 is the cross-sectional schematic diagram of the utility model.

[0014] Explanation of the reference signs in the drawings:

[0015] 1. Oxygen delivery tube; 11. Ventilation hole; 2. Sliding retaining ring; 3. First connector; 31. Tail end of the first connector; 32. Oxygen inhalation tube connector; 4. Second connector; 41. Tail end of the second connector; 42. Luer connector; 5. Third connector; 51. Tail end of the third connector; 52. Ventilator connector; 53. Operating handle; 6. Guiding member; 61. Guiding ring; 62. Guiding wire. Detailed implementation manners

[0016] The following further describes the present utility model with reference to the drawings and embodiments, so that those skilled in the technical field to which the present utility model belongs can easily implement the present utility model.

[0017] Embodiment 1: As Figures 1-3As shown in the figure, the utility model is successively provided with an oxygen delivery tube 1, a sliding retaining ring 2, a first connector 3, a second connector 4, a third connector 5 and a guiding member 6. The sliding retaining ring 2 is sleeved on the outer circle of the oxygen delivery tube 1. The outer diameter of the oxygen delivery tube 1 is between 3 mm and 5 mm, and the material is soft. The inner diameter of the sliding retaining ring 2 matches the outer diameter of the oxygen delivery tube 1 so that the sliding retaining ring 2 can be limited after moving. There are two fins on the sliding retaining ring 2 to prevent the sliding retaining ring from falling into the patient's nasal cavity. One end of the oxygen delivery tube 1 is hemispherical to reduce the extrusion and frictional damage of the intracavitary tissue; the other end is fixedly connected to the first connector 3 by gluing. Ventilation holes 11 are evenly distributed in a staggered manner on the tube section of the oxygen delivery tube 1 near the hemispherical end. A reinforcing spring wire is embedded in the inner wall of the oxygen delivery tube 1 to form a composite tube, so that the air cavity in the oxygen delivery tube 1 has a certain supporting force, avoiding the blockage of the air cavity in the oxygen delivery tube 1 when it is bent, affecting its permeability, avoiding the extrusion of the catheter by the tongue falling back, relieving airway obstruction, and providing sufficient oxygen and respiratory support for the patient.

[0018] The first connector 3 is provided with a first connector tail end 31 and an oxygen inhalation tube connector 32. Convex lines are evenly distributed on the outer surface of the first connector tail end 31 to increase the frictional force and facilitate the insertion and extraction of the second connector 4 or the oxygen inhalation tube. A screw thread is provided on the outer surface of the oxygen inhalation tube connector 32, and it is connected to the oxygen inhalation tube through the screw thread. Through holes are provided inside the first connector tail end 31 and the oxygen inhalation tube connector 32.

[0019] The second connector 4 is provided with a second connector tail end 41 and a Luer connector 42. Convex lines are evenly distributed on the surface of the second connector tail end 41 to increase the frictional force and facilitate the insertion and extraction of the first connector 3, the third connector 5 or the oxygen supply and respiration pipeline of the Luer connector; the inside of the second connector tail end 41 is connected to the oxygen inhalation tube connector 32 by a screw thread connection. A conical notch is provided inside the Luer connector 42, and it is inserted into the oxygen respiration pipeline through the conical notch. Through holes are provided inside the second connector tail end 41 and the Luer connector 42.

[0020] The third connector 5 is provided with a third connector tail end 51, an operating handle 53 and a ventilator connector 52. Through holes are also provided inside the third connector tail end 51, the operating handle 53 and the ventilator connector 52. The third connector tail end 51 is inserted into the outer surface of the Luer connector 42, and it is fixed and inserted and extracted by frictional force. The operating handle 53 is located between the third connector tail end 51 and the ventilator connector 52 and is used to perform the insertion and extraction operation of the third connector 5. The ventilator connector 52 can be connected to a ventilator or a guiding member 6. The ventilator connector 52 and the guiding member 6 are connected by an insertion method and are fixed and inserted and extracted by frictional force.

[0021] The guiding member 6 is provided with a guiding ring 61 and a guiding wire 62. The guiding wire 62 extends deep into the oxygen delivery tube 1. The guiding wire 62 is a relatively thin spring, which is used to provide a certain strength for the soft and slender oxygen delivery tube 1, facilitating the establishment of a nasopharyngeal ventilation channel by the oxygen delivery tube 1. The guiding ring 61 is provided with a tail wing for removing the guiding wire 62 after the nasopharyngeal ventilation channel is completed. The guiding ring 61 and the guiding wire 62 are fixedly connected by glue.

[0022] The working process of the present utility model: When a patient needs to insert a nasopharyngeal airway, first evaluate whether the nasopharyngeal airway can pass through the patient's nasal cavity. After confirmation, the patient lies supine and uses anesthetic drugs, and then

[0023] the round head end of the oxygen delivery tube 1 is inserted into the patient's nasal cavity. The round head design at the head end plays a role of smooth protection. The guiding wire 62 in the guiding member 6 can be bent to guide the oxygen delivery tube 1 to enter the nasal cavity along the nasal passage, reducing damage and bleeding of the nasal mucosa. After the round head end of the oxygen delivery tube 1 reaches the target position, according to different oxygen supply devices, there are options of the first connector 3, the second connector 4, and the third connector 5 for different connection methods. The sliding retaining ring 2 can adjust the position of the sliding retaining ring 2 according to the depth of the ventilation catheter inserted into the nasopharyngeal airway. The sliding retaining ring 2 has a certain frictional force with the oxygen delivery tube 1, enabling it to play a good blocking role to limit the oxygen delivery tube 1.

[0024] Embodiment 2: After the present utility model is placed, the guiding member 6, the third connector 5, and the second connector 4 are pulled out in sequence, and the oxygen delivery tube 1 and the first connector 3 are retained. The first connector 3 can be connected to the breathing pipeline of the oxygen inhalation tube nasal plug to establish an oxygen delivery passage.

[0025] Embodiment 3: After the present utility model is placed, the guiding member 6 and the third connector 5 are pulled out in sequence, and the oxygen delivery tube 1, the first connector 3, and the second connector 4 are retained. The second connector 4 can be connected to the breathing pipeline of the Luer interface to establish an oxygen delivery passage.

[0026] Embodiment 4: For the present utility model: After the product is placed, the guiding member 6 is pulled out, and the oxygen delivery tube 1, the first connector 3, the second connector 4, and the third connector 5 are retained. The third connector 5 can be connected to the breathing pipeline of the ventilator interface to establish an oxygen delivery passage.

[0027] The above description is only for the preferred embodiments of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the scope defined by the claims of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An enhanced nasopharyngeal airway device is provided with an oxygen delivery tube, a sliding retaining ring, a connector and a guide member. The sliding retaining ring is sleeved on the outer circle of the oxygen delivery tube. The inner diameter of the sliding retaining ring matches the outer diameter of the oxygen delivery tube. The sliding retaining ring is provided with fins. One end of the oxygen delivery tube is hemispherical, and ventilation holes are staggered and evenly distributed on the tube section near the hemispherical end of the oxygen delivery tube. The guide member is provided with a guide wire, and the guide wire extends into the oxygen delivery tube. The oxygen delivery tube is fixedly connected to the connector, and the connector and the guide member are inserted. It is characterized in that, The inner wall of the oxygen delivery tube is provided with reinforcing spring wires.

2. The enhanced nasopharyngeal airway device according to claim 1, wherein The connector is provided with an oxygen inhalation tube connector, a Luer connector and a ventilator connector. The oxygen inhalation tube connector and the Luer connector are connected by a screw thread, and the Luer connector and the ventilator connector are connected by insertion.

3. The enhanced nasopharyngeal airway device according to claim 2, wherein The outer surface of the connector is provided with convex stripes or an operating handle.

4. The enhanced nasopharyngeal airway device according to claim 1, wherein, The guiding member is further provided with a guiding ring. The guiding ring and the guiding wire are fixedly connected by glue, and the guiding ring is provided with a tail wing.

Images