Children tracheal catheter replacement guide wire

By incorporating a hydrophilic layer and a lubricating layer into the guidewire for pediatric endotracheal tube replacement, the problem of tracheal wall damage during tube replacement is solved, thereby improving the success rate and safety of intubation.

CN223555287UActive Publication Date: 2025-11-18BAODING HOSPITAL BEIJING CHILDRENS HOSPITAL CAPITAL MEDICAL UNIVERSITY
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Patent Information

Application Number
CN202422535981.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-21
Publication Date
2025-11-18
Estimated Expiration
2034-10-21

AI Technical Summary

Technical Problem

Common endotracheal tubes lack protective structures during replacement, which can easily damage the endotracheal wall, affecting safety and practicality.

Method used

The design of the guidewire for replacing endotracheal tubes in children employs a hydrophilic layer on the surface of the core wire that melts into a gel upon contact with water, and a lubricating layer covering the outer side of the spring. This increases lubrication, provides support, reduces twisting and bending, and avoids damage to the tracheal wall.

Benefits of technology

It improves the success rate of catheter insertion, enhances the safety and practicality of use, and avoids damage to the tracheal wall caused by the catheter.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of medical instruments, in particular to a child tracheal catheter replacement guide wire which comprises a catheter body. The catheter comprises a catheter body and further comprises a core wire, a winding spring, a connector and a hydrophilic layer, the core wire is arranged in the catheter body, the outer side of the core wire is annularly sleeved with the winding spring, the connector is arranged at the top of the catheter body, the top of the core wire is connected with the bottom of the connector, the outer side wall of the core wire is wrapped with the hydrophilic layer, and the outer side wall of the winding spring is provided with a lubricating layer. By arranging the protective structure, the tracheal wall can be prevented from being damaged in the catheter replacement process, and the problems that when a common tracheal catheter is replaced and used, the catheter needs to be rapidly replaced, and although a guide wire can be inserted into the catheter due to the fact that the penetrability of the tip end of the guide wire of the catheter is high, the catheter cannot be rapidly replaced are solved. However, a protection structure is lacked, so that the tracheal wall is easily damaged in the catheter replacement process, the normal use of the catheter is influenced, and the use safety and practicability of the tracheal catheter are reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, especially to the replacement guide wire of tracheal tube for children. BACKGROUND

[0002] The guide wire of the tracheal tube is mainly used for shaping the tracheal tube by the guide wire during tracheal intubation in clinic, so as to realize the smooth insertion of the tracheal tube, especially in difficult intubation.

[0003] The common tracheal tube needs to be quickly replaced when the tracheal tube is replaced, but the guide wire tip of the tracheal tube has strong penetration, so the guide wire can be inserted into the tracheal tube, but there is no protective structure, which can easily damage the tracheal wall during the replacement of the tracheal tube, thereby affecting the normal use of the tracheal tube and reducing the safety and practicability of the tracheal tube.

[0004] Therefore, in view of the above problems that the common tracheal tube lacks a protective structure and is easy to damage the tracheal wall during the replacement of the tracheal tube, the replacement guide wire of the tracheal tube for children can be designed, a hydrophilic layer that melts into a gel when water is encountered is arranged on the surface of the core wire, the lubricity of the surface of the core wire can be increased, so that the core wire is more easily inserted into the inside of the tracheal tube body, and the spring can be used to provide additional support and reduce the twisting and bending of the tracheal tube body during intubation, thereby improving the success rate of one-time intubation, and the lubricating layer on the outside of the spring can be used to reduce the friction of the concave surface and further improve the lubricity, thereby avoiding damage to the inner wall of the tracheal tube body caused by the core wire and the spring, and improving the safety and practicability of use. SUMMARY

[0005] In order to overcome the problems that the common tracheal tube lacks a protective structure and is easy to damage the tracheal wall during the replacement of the tracheal tube, thereby affecting the normal use of the tracheal tube and reducing the safety and practicability of the tracheal tube.

[0006] The technical scheme of the utility model is as follows: the replacement guide wire of the tracheal tube for children comprises a tracheal tube body, a core wire, a spring, a connecting head, a hydrophilic layer, the inside of the tracheal tube body is provided with the core wire, the outside of the core wire is sleeved with the spring, the top of the tracheal tube body is provided with the connecting head, the top of the core wire is connected with the bottom of the connecting head, the outside wall of the core wire is coated with the hydrophilic layer, and the outside wall of the spring is provided with a lubricating layer.

[0007] Preferably, the core wire can be used to change the shape of the catheter body, so that the catheter body can be plastic according to the insertion path, improve the success rate of the catheter body insertion, and the hydrophilic layer that melts into gel when water is encountered can be arranged on the surface of the core wire to increase the lubricity of the surface of the core wire, so that the core wire is more easily inserted into the inside of the catheter body, and the coil spring can be used to provide additional support and reduce the twisting and bending of the catheter body during intubation, thereby improving the success rate of disposable intubation, and the lubricating layer can be coated on the outside of the coil spring to reduce the friction of the concave surface and further improve the lubricity, thereby avoiding damage to the inner side wall of the catheter body caused by the core wire and the coil spring, and improving the safety and practicability of use.

[0008] Preferably, the bottom of the core wire is connected with a light source probe, and the light source probe passes through the bottom end of the catheter body and is located outside.

[0009] Preferably, the diameter of the core wire is 2mm, and the coil spring at the bottom end of the core wire is separated from the core wire and located in front of the bottom end.

[0010] Preferably, the outer side upper end of the catheter body is provided with a limiting sleeve, the top of the connecting head is connected with a handle, and the top of the handle is provided with a light source switch.

[0011] Preferably, the front side of the handle is provided with a corner seat, the inner side of the corner seat is provided with a rotating shaft, the outer side of the rotating shaft is sleeved with a limiting ring, the side wall of the limiting ring is provided with a connecting rod, and the other end of the connecting rod is provided with a display screen.

[0012] Preferably, the side wall upper end of the catheter body is connected with an air pipe, the other end of the air pipe is connected with an air bag, and the other end of the air bag is connected with an inflation pipe.

[0013] Preferably, the lubricating layer is a component made of polyurethane material, and the thickness of the lubricating layer is 0.5mm.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1、through the core wire can be used to change the shape of the catheter body, so that the catheter body can be plastic according to the insertion path, improve the success rate of the catheter body insertion, and the hydrophilic layer that melts into gel when water is encountered can be arranged on the surface of the core wire to increase the lubricity of the surface of the core wire, so that the core wire is more easily inserted into the inside of the catheter body, and the coil spring can be used to provide additional support and reduce the twisting and bending of the catheter body during intubation, thereby improving the success rate of disposable intubation, and the lubricating layer can be coated on the outside of the coil spring to reduce the friction of the concave surface and further improve the lubricity, thereby avoiding damage to the inner side wall of the catheter body caused by the core wire and the coil spring, and improving the safety and practicability of use. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a children tracheal tube replacement guide wire three -dimensional structure schematic diagram shows.

[0017] Figure 2 The utility model discloses a children tracheal tube replacement guide wire cross section structure schematic diagram shows.

[0018] Figure 3 The utility model discloses a children tracheal tube replacement guide wire around spring installation structure schematic diagram shows.

[0019] Figure 4 The utility model discloses a children tracheal tube replacement guide wire display screen explosion structure schematic diagram shows.

[0020] The utility model discloses a children tracheal tube replacement guide wire three -dimensional structure schematic diagram shows. Specific implementation

[0021] The utility model further carries out the explanation with the drawings and the embodiment.

[0022] Please refer to Figures 1-4 The utility model provides a kind of embodiment: children tracheal tube replacement guide wire, including catheter body 1;Further including core wire 2, around spring 3, connecting head 4, hydrophilic layer 5, the inside of catheter body 1 is provided with core wire 2, core wire 2 outside is sleeved with around spring 3, the top of catheter body 1 is provided with connecting head 4, the top of core wire 2 is connected with the bottom of connecting head 4, the outside wall of core wire 2 is coated with hydrophilic layer 5, the outside wall of around spring 3 is provided with lubricating layer 18, by core wire 2 can be used to change the form of catheter body 1, so that it can be plastic according to the path of insertion catheter body 1, improve the success rate of insertion catheter body 1, and by setting the hydrophilic layer 5 that melts into gel when meeting water on the surface of core wire 2, the lubricity of the surface of core wire 2 can be increased, so that core wire 2 is more easily inserted into the inside of catheter body 1, and by around spring 3 can be used to provide additional support, and reduce the kink and bending of catheter body 1 in intubation process, so as to improve the success rate of disposable intubation, simultaneously by coating lubricating layer 18 on the outside of around spring 3, can be used to reduce the friction of concave surface, and further improve lubricity, so as to avoid that core wire 2 and around spring 3 cause damage to the inside wall of catheter body 1, improve the security and practicality of use.

[0023] Please refer to Figures 1-4In the embodiment, the bottom of the core wire 2 is connected with the light source probe 6, and the light source probe 6 is located outside the bottom end of the catheter body 1. The light source probe 6 can be used to provide light source and detect the insertion path of the catheter body 1. The diameter of the core wire 2 is 2 mm, and the bottom of the coil spring 3 is separated from the bottom of the core wire 2 and located in front of the bottom of the core wire 2. By using the core wire 2 with a diameter of 2 mm, the core wire 2 has better support. By extending the bottom of the coil spring 3 and separating it from the core wire 2, the penetration of the bottom of the coil spring 3 is reduced, and the bottom is not too sharp to damage the inner wall of the catheter body 1. The outer side of the catheter body 1 is provided with a limiting sleeve 7. The top of the connecting head 4 is connected with a handle 8, and the top of the handle 8 is provided with a light source switch 9. The limiting sleeve 7 can be used to limit the insertion depth of the catheter body 1. The connecting head 4 can be used to connect the catheter body 1 and the handle 8. The light source switch 9 can be used to turn on and off the light source probe 6.

[0024] Please refer to Figures 1-4 In the embodiment, the front side of the handle 8 is provided with an angle seat 10. The inner side of the angle seat 10 is provided with a rotating shaft 11. The outer side of the rotating shaft 11 is provided with a limiting ring 12. The side wall of the limiting ring 12 is provided with a connecting rod 13. The other end of the connecting rod 13 is provided with a display screen 14. By rotating the connecting rod 13, the limiting ring 12 can be rotated on the outer side of the rotating shaft 11, so as to adjust the angle of the display screen 14. The display screen 14 can be used to display the detection image of the light source probe 6, so as to facilitate the observation of the insertion of the catheter body 1. The side wall of the catheter body 1 is connected with an air pipe 15. The other end of the air pipe 15 is connected with an air bag 16. The other end of the air bag 16 is connected with an inflation pipe 17. Oxygen can be input into the catheter body 1 through the air pipe 15. Oxygen can be delivered into the air bag 16 through the inflation pipe 17. The air bag 16 can accelerate the delivery speed of oxygen. The lubricating layer 18 is a member made of polyurethane material, and the thickness of the lubricating layer 18 is 0.5 mm. The lubricating layer 18 can improve the lubricity of the surface of the coil spring 3 and reduce the friction between the catheter body 1 and the coil spring 3.

[0025] In the working process, the limiting sleeve 7 can be used to limit the insertion depth of the catheter body 1, the connecting head 4 can be used to connect the catheter body 1 and the handle 8, the light source switch 9 can be used to turn on and off the light source probe 6, the light source probe 6 can be used to provide light source and detect the insertion path of the catheter body 1, the rotating connecting rod 13 can drive the limiting ring 12 to rotate outside the rotating shaft 11, thereby adjusting the angle of the display screen 14, the display screen 14 can be used to display the detection image of the light source probe 6, thereby facilitating the viewing of the insertion condition of the catheter body 1, the core wire 2 can be used to change the shape of the catheter body 1, so that it can be plastic according to the insertion path, improve the success rate of the catheter body 1 insertion, the hydrophilic layer 5 that melts into gel when meeting water is arranged on the surface of the core wire 2, which can increase the lubricity of the surface of the core wire 2, so that the core wire 2 is more easily inserted into the inside of the catheter body 1, the coil spring 3 can be used to provide additional support and reduce the kink and bend of the catheter body 1 in the intubation process, thereby improving the success rate of one-time intubation, the lubricating layer 18 is arranged on the outside of the coil spring 3, which can reduce the friction of the concave surface and further improve the lubricity, thereby avoiding the damage of the core wire 2 and the coil spring 3 to the inner side wall of the catheter body 1, improving the safety and practicability of use.

[0026] Through the above steps, by setting the protection structure, the tracheal wall can be avoided to be damaged in the process of replacing the catheter, so as to solve the common problems of tracheal catheter, which is easy to damage the tracheal wall in the process of replacing the catheter due to the lack of protection structure, thereby affecting the normal use of the catheter and reducing the safety and practicability of the tracheal catheter.

Claims

1. A replacement guide wire for a child tracheal tube, comprising a tube body (1); characterized in that: The core wire (2), the coil spring (3), the connecting head (4), the hydrophilic layer (5) are arranged on the catheter body (1), the inside of the catheter body (1) is provided with the core wire (2), the outside of the core wire (2) is sleeved with the coil spring (3), the top of the catheter body (1) is provided with the connecting head (4), the top of the core wire (2) is connected with the bottom of the connecting head (4), the outside wall of the core wire (2) is coated with the hydrophilic layer (5), the outside wall of the coil spring (3) is provided with the lubricating layer (18).

2. The child tracheal tube replacement guide wire of claim 1, wherein: The bottom of the core wire (2) is connected with the light source probe (6), and the light source probe (6) passes through the bottom end of the catheter body (1) and is located outside.

3. The child tracheal tube replacement guide wire of claim 1, wherein: The diameter of the core wire (2) is 2mm, and the coil spring (3) at the bottom end of the core wire (2) is separated from the core wire (2) and located in front of the bottom end of the core wire (2).

4. The child tracheal tube replacement guide wire of claim 1, wherein: The outside upper end of the catheter body (1) is provided with the limiting sleeve (7), the top of the connecting head (4) is connected with the handle (8), and the top of the handle (8) is provided with the light source switch (9).

5. The child tracheal tube replacement guide wire of claim 4, wherein: The front side of the handle (8) is provided with the angular seat (10), the inside of the angular seat (10) is provided with the rotating shaft (11), the outside of the rotating shaft (11) is sleeved with the limiting ring (12), the side wall of the limiting ring (12) is provided with the connecting rod (13), and the other end of the connecting rod (13) is provided with the display screen (14).

6. The child tracheal tube replacement guide wire of claim 1, wherein: The side wall upper end of the catheter body (1) is connected with the air pipe (15), the other end of the air pipe (15) is connected with the air bag (16), and the other end of the air bag (16) is connected with the inflation pipe (17).

7. The child tracheal tube replacement guide wire of claim 1, wherein: The lubricating layer (18) is a component made of polyurethane material, and the thickness of the lubricating layer (18) is 0.5mm.