Controllable tracheal catheter core

Abstract

The utility model provides a controllable tracheal catheter core which comprises a flexible catheter core, a main pipeline is arranged in the flexible catheter core, and a through hole is formed in the end, located on the flexible catheter core, of the pipeline. The shaping assembly comprises a first guide wire, a second guide wire and a plurality of gears, and the first guide wire, the gears and the second guide wire are sequentially arranged in the main pipeline from the other end of the flexible catheter core. A first guide wire and a second guide wire in a main pipeline of the device are used for shaping two end sections of a flexible catheter core made of a soft material, so that the two end sections are kept straight; according to the device, bending of the flexible catheter core can be controlled, when the flexible catheter core is bent, the bending part of the guide wire is recovered to be soft in time through the second guide wire, the influence on the trachea cannula is reduced, the accuracy of the position of the trachea cannula is further improved, and the situation that due to trachea cannula failure, the trachea cannula is damaged is reduced. Repeated intubation operation can bring medical injury to a patient.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a controllable endotracheal tube core. Background Technology

[0002] Endotracheal intubation is a method of inserting a specially designed endotracheal tube through the mouth and glottis into the trachea or bronchus. It provides optimal conditions for airway patency, ventilation and oxygen supply, and airway suction, and is an important measure for rescuing patients with respiratory dysfunction.

[0003] Clinically, because there is a certain bending angle between the mouth and the trachea, endotracheal intubation is usually performed using a flexible, bendable stylet. However, during stylet removal, the endotracheal tube may shift due to the bending and friction of the stylet, especially in patients with difficult airways, where the stylet is more likely to cause displacement of the endotracheal tube. If the tip of the endotracheal tube leaves the patient's glottis, endotracheal intubation fails, and repeated intubation attempts can cause medical harm to the patient and even endanger their life.

[0004] How to provide a controllable endotracheal tube stylet is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a controllable endotracheal tube core, so as to solve at least one of the above-mentioned technical problems.

[0006] To solve the above-mentioned technical problems, this utility model provides a controllable endotracheal tube stylet, comprising: a flexible tube stylet, wherein a main channel is provided inside the flexible tube stylet, and the main channel has a through hole at one end of the flexible tube stylet; and a shaping assembly, wherein the shaping assembly includes a first guide wire, a second guide wire, and a plurality of gears, the first guide wire, the plurality of gears, and the second guide wire are sequentially arranged inside the main channel from the other end of the flexible tube stylet, the first guide wire is fixedly arranged inside the main channel, the plurality of gears are sequentially arranged inside the main channel, and a gap is reserved between the plurality of gears, the second guide wire is movably sleeved inside the main channel, and a limit device is provided at the through hole of the main channel and connected to the second guide wire.

[0007] Optionally, the main pipeline includes a first pipeline, a second pipeline, a third pipeline, and a fourth pipeline. The first guide wire is disposed in the first pipeline. The inner diameter of the second pipeline is larger than that of the first pipeline. A plurality of gears are sequentially arranged in the second pipeline, the maximum outer diameter of the gears being adapted to the inner diameter of the second pipeline. The inner diameter of the third pipeline is smaller than that of the second pipeline. The second guide wire is movably sleeved in the second pipeline. The inner diameter of the fourth pipeline is larger than that of the third pipeline. The limiting device is disposed in the fourth pipeline.

[0008] Optionally, the limiting device includes a Y-shaped rod and a telescopic spring. The Y-shaped rod is divided into a forked section and a single rod section. The end of the single rod section away from the forked section is connected to the end of the second guide wire away from the gear. The telescopic spring is sleeved on the single rod section. The diameter of the telescopic spring is larger than the diameter of the third pipe. One end of the telescopic spring abuts against the connection between the third pipe and the fourth pipe. A first locking block is provided at the connection between the forked section and the single rod section. The other end of the telescopic spring abuts against the first locking block. A second locking block is provided on each of the two support rods of the forked section. Two third locking blocks are provided in the fourth pipe opposite to the two second locking blocks.

[0009] Optionally, the second locking block is wedge-shaped, with the tips of both second locking blocks facing the end where the forked segment connects to the single rod segment.

[0010] Optionally, a guardrail is provided at the through-hole of the third pipe.

[0011] Optionally, both the first guide wire and the second guide wire have tooth grooves that are adapted to the gear at the ends near the gear.

[0012] Optionally, each of the gear teeth is provided with anti-slip particles.

[0013] Optionally, each gear is provided with a magnet inside, and the magnets in two adjacent gears are magnets of the same polarity.

[0014] Optionally, the length of the first guidewire is less than the length of the second guidewire.

[0015] Optionally, the flexible catheter core is made of silicone.

[0016] Beneficial effects:

[0017] This invention provides a controllable endotracheal tube stylet. The device uses a first and second guide wire within the main tubing to shape the two ends of a flexible stylet made of a soft material, keeping it straight. The portion between the first and second guide wires is a gear, and since there is a gap between the gears, the flexible stylet's internal gear portion can be bent. When needed, the flexible stylet is first placed into the endotracheal tube. The bendable portion of the stylet is then bent to the desired angle. The second guide wire is then pressed, forcing it towards the gears, causing multiple gears to mesh together. A limiting device fixes the position of the second guide wire, maintaining constant pressure on each gear. Under pressure and friction, the meshing angle of each gear remains unchanged, thus maintaining the shape of the bent portion of the flexible stylet. The endotracheal tube is then inserted... When the endotracheal tube is inserted into the patient's trachea and the flexible guidewire needs to be removed, the limiting device opens. The pressure of the second guidewire on each gear disappears, and the meshing between the gears is no longer stable. The guidewire is no longer bent, and the originally bent part of the guidewire becomes flexible again. When the guidewire is withdrawn from the endotracheal tube, the flexible part has greater mobility and will not rub against the endotracheal tube during withdrawal due to maintaining a bent angle, thus preventing the endotracheal tube from sliding outward with the flexible guidewire. This has less impact on the insertion position of the endotracheal tube. This device can control the bending of the flexible guidewire. When the flexible guidewire bends, the second guidewire promptly restores the bent part of the guidewire to its flexible state, reducing the impact on endotracheal intubation, further improving the accuracy of endotracheal intubation position, and reducing medical harm to the patient caused by repeated intubation due to endotracheal intubation failure.

[0018] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the internal structure provided in an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the flexible catheter core provided in an embodiment of this application;

[0022] Figure 3 This is a schematic diagram of the internal structure after bending, provided in an embodiment of this application.

[0023] Figure label:

[0024] 1. Flexible conduit core; 11. Main conduit; 111. First conduit; 112. Second conduit; 113. Third conduit; 114. Fourth conduit;

[0025] 2. Shaping assembly; 21. First guide wire; 22. Second guide wire; 23. Gear;

[0026] 3. Limiting device; 31. Y-shaped rod; 311. Forked section; 312. Single rod section; 32. Telescopic spring; 33. First locking block; 34. Second locking block; 35. Third locking block; 36. Guardrail. Detailed Implementation

[0027] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in this specification are within the protection scope of this utility model.

[0028] Furthermore, in the embodiments of this specification, when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component present. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component present.

[0029] Please see Figure 1-3 This embodiment provides a controllable endotracheal tube core, which includes a flexible tube core 1, with a main tube 11 disposed inside the flexible tube core 1, and a through hole at one end of the main tube 11; a shaping component 2, which includes a first guide wire 21, a second guide wire 22, and a plurality of gears 23. The first guide wire 21, the plurality of gears 23, and the second guide wire 22 are sequentially disposed inside the main tube 11 from the other end of the flexible tube core 1. The first guide wire 21 is fixedly disposed inside the main tube 11. The plurality of gears 23 are sequentially arranged inside the main tube 11, with gaps reserved between the plurality of gears 23. The second guide wire 22 is movably sleeved inside the main tube 11. A limit device 3 is provided at the through hole of the main tube 11 and connected to the second guide wire 22.

[0030] Specifically, the first guide wire 21 and the second guide wire 22 within the main conduit 11 of the device shape the two ends of the flexible conduit core 1 made of soft material, keeping it straight. The portion between the first guide wire 21 and the second guide wire 22 is a gear 23, and there is a gap between the gears 23. Therefore, a part of the flexible conduit core 1 containing the gears 23 can be bent. When needed, the flexible conduit core 1 is inserted into the endotracheal tube, and the bendable portion of the flexible conduit core 1 is bent according to the required bending angle. After bending to the required angle, the second guide wire 22 is pressed, and the second guide wire 22 is pressed against the gears 23, squeezing multiple gears 23 together. The teeth of the gears 23 mesh with each other. The limiting device 3 is used to fix the position of the second guide wire 22, maintaining pressure on each gear 23 at all times. Under the action of pressure and friction, the meshing angle of each gear 23 remains unchanged, thus keeping the bent portion of the flexible conduit core 1 shaped. When the endotracheal tube is inserted into the patient's trachea, and the flexible guide tube 1 needs to be removed after insertion, the limiting device 3 is opened. The pressure of the second guide wire 22 on each gear 23 disappears, and the meshing between the gears 23 is no longer stable, thus no longer maintaining the bending of the guide wire. At this time, the originally bent part of the guide wire returns to its softness. When the guide wire is withdrawn from the endotracheal tube, the soft part has greater mobility and will not rub against the endotracheal tube during withdrawal due to maintaining the bending angle, thus preventing the endotracheal tube from sliding outward with the flexible guide tube 1. This has less impact on the insertion position of the endotracheal tube. This device can control the bending of the flexible guide tube 1. When the flexible guide tube 1 bends, the second guide wire 22 promptly restores the bent part of the guide wire to its softness, reducing the impact on endotracheal intubation, further improving the accuracy of endotracheal intubation position, and reducing medical harm to the patient caused by repeated intubation operations due to endotracheal intubation failure.

[0031] In some possible implementations, the main pipe 11 includes a first pipe 111, a second pipe 112, a third pipe 113, and a fourth pipe 114. A first guide wire 21 is disposed in the first pipe 111. The inner diameter of the second pipe 112 is larger than that of the first pipe 111. A plurality of gears 23 are sequentially arranged in the second pipe 112. The maximum outer diameter of the gears 23 is adapted to the inner diameter of the second pipe 112. The inner diameter of the third pipe 113 is smaller than that of the second pipe 112. A second guide wire 22 is movably sleeved in the second pipe 112. The inner diameter of the fourth pipe 114 is larger than that of the third pipe 113. A limiting device 3 is disposed in the fourth pipe 114.

[0032] Specifically, the main pipe 11 is divided into three parts. The inner diameters of the first pipe 111 and the third pipe 113 are both smaller than the inner diameter of the second pipe 112. The diameter of the gear 23 is matched with that of the second pipe 112. The gear 23 will only move within the second pipe 112, fixing the bendable part of the guide wire.

[0033] In some possible implementations, the limiting device 3 includes a Y-shaped rod 31 and a telescopic spring 32. The Y-shaped rod 31 is divided into a forked section 311 and a single rod section 312. The end of the single rod section 312 away from the forked section 311 is connected to the end of the second guide wire 22 away from the gear 23. The telescopic spring 32 is sleeved on the single rod section 312. The diameter of the telescopic spring 32 is larger than the diameter of the third pipe 113. One end of the telescopic spring 32 abuts against the connection between the third pipe 113 and the fourth pipe 114. A first locking block 33 is provided at the connection between the forked section 311 and the single rod section 312. The other end of the telescopic spring 32 abuts against the first locking block 33. A second locking block 34 is provided on each of the two supports of the forked section 311. Two third locking blocks 35 are provided in the fourth pipe 114 opposite to the two second locking blocks 34.

[0034] Specifically, the Y-shaped rod 31 is connected to the second guidewire 22. The Y-shaped rod 31 pushes the guidewire to move. When in use, firstly, the bifurcated section 311 is pinched and pressed into the third channel inside the flexible catheter core 1. The first locking block 33 on the Y-shaped rod 31 compresses the telescopic spring 32 until the second locking block 34 of the bifurcated section 311 passes the third locking block 35 inside the third channel. When released, the bifurcated section 311 opens, and the second locking block 34 abuts against the side of the third locking block 35 facing the inside of the third channel. While the bifurcated section 311 is pressed into the third channel, the single rod section 312 simultaneously pushes the second guidewire 22 to move. The end of the second guidewire 22 near the gear 23... When the gear 23 is squeezed, and the second locking block 34 passes over the third locking block 35, the second guide wire 22 simultaneously squeezes the gear 23, tightly meshing each gear 23. When it is necessary to loosen the second guide wire 22, the forked section 311 is pinched, the forked section 311 closes, the two second locking blocks 34 come close together, the telescopic spring 32 opens the connection between the first locking block 33 and the third pipe 113 and the fourth pipe 114, and pushes the Y-shaped rod 31 outwards towards the fourth pipe 114. The two second locking blocks 34 of the forked section 311 extend past the two third locking blocks 35, completing the loosening of the second guide wire 22, making it more convenient to use.

[0035] In some possible implementations, the second locking block 34 is wedge-shaped, with the tips of both second locking blocks 34 facing the end where the forked section 311 connects to the single rod section 312. A guardrail 36 is provided at the through hole of the fourth pipe 114.

[0036] Specifically, the second locking block 34 is wedge-shaped. When pushing the Y-shaped rod 31, the forked section 311 no longer needs to be pinched. The wedge-shaped second locking block 34 will close the forked section 311 along the diagonal line until the second locking block 34 passes the third locking block 35. The baffle 36 at the through hole of the third channel can restrict the second locking block 34 in the third channel to prevent the Y-shaped rod 31 from sliding out.

[0037] In some possible implementations, the first guide wire 21 and the second guide wire 22 are both provided with tooth grooves that are adapted to the gear 23 at the ends near the gear 23.

[0038] Specifically, the connection between the first guide wire 21, the second guide wire 22, and the gear 23 is a matching tooth groove. On the one hand, this facilitates the second guide wire 22 to push the gear 23. On the other hand, the tooth groove meshes with the gear 23 to prevent the gear 23 from rotating.

[0039] In some possible implementations, anti-slip particles are provided on the teeth of each gear 23.

[0040] Specifically, the anti-slip particles on the teeth of gear 23 further increase the friction, and the friction is even greater when adjacent gears 23 mesh, further preventing the guide wire from bending and deforming due to the rotation of gear 23.

[0041] In some possible implementations, each gear 23 is provided with a magnet inside, and the magnets in two adjacent gears 23 are magnets of the same polarity.

[0042] Specifically, each pair of adjacent gears 23 maintains a certain repulsive force due to the like magnets. When the second guide wire 22 is released, each gear 23 separates in time, ensuring that the guide wire returns to its flexible state.

[0043] In some possible implementations, the length of the first guidewire 21 is shorter than the length of the second guidewire 22. The flexible catheter core 1 is made of silicone.

[0044] Specifically, silicone is relatively soft, non-toxic, and has better chemical stability.

[0045] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. All should be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

[0046] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A controllable endotracheal tube stylet, characterized in that, include: A flexible catheter core (1) is provided inside the flexible catheter core (1), and the main pipe (11) is a through hole at one end of the flexible catheter core (1); The shaping component (2) includes a first guide wire (21), a second guide wire (22), and a plurality of gears (23). The first guide wire (21), the plurality of gears (23), and the second guide wire (22) are sequentially arranged in the main pipe (11) from the other end of the flexible conduit core (1). The first guide wire (21) is fixedly arranged in the main pipe (11). The plurality of gears (23) are sequentially arranged inside the main pipe (11) with a gap reserved between them. The second guide wire (22) is movably sleeved in the main pipe (11). A limiting device (3) is provided at the through hole of the main pipe (11) and connected to the second guide wire (22).

2. The controllable endotracheal tube stylet according to claim 1, characterized in that... The main pipe (11) includes a first pipe (111), a second pipe (112), a third pipe (113), and a fourth pipe (114). The first guide wire (21) is disposed in the first pipe (111). The inner diameter of the second pipe (112) is larger than that of the first pipe (111). Several gears (23) are arranged sequentially in the second pipe (112). The maximum outer diameter of the gear (23) is adapted to the inner diameter of the second pipe (112). The inner diameter of the third pipe (113) is smaller than that of the second pipe (112). The second guide wire (22) is movably sleeved in the second pipe (112). The inner diameter of the fourth pipe (114) is larger than that of the third pipe (113). The limiting device (3) is disposed in the fourth pipe (114).

3. A controllable endotracheal tube stylet according to claim 2, characterized in that... The limiting device (3) includes a Y-shaped rod (31) and a telescopic spring (32). The Y-shaped rod (31) is divided into a forked section (311) and a single rod section (312). The end of the single rod section (312) away from the forked section (311) is connected to the end of the second guide wire (22) away from the gear (23). The telescopic spring (32) is sleeved on the single rod section (312). The diameter of the telescopic spring (32) is larger than the diameter of the third pipe (113). 2) One end of the spring (3) abuts against the connection between the third pipe (113) and the fourth pipe (114). A first locking block (33) is provided at the connection between the bifurcation section (311) and the single rod section (312). The other end of the telescopic spring (32) abuts against the first locking block (33). A second locking block (34) is provided on each of the two support rods of the bifurcation section (311). Two third locking blocks (35) are provided in the fourth pipe (114) opposite to the two second locking blocks (34).

4. The controllable endotracheal tube stylet according to claim 3, characterized in that: The second locking block (34) is wedge-shaped, and the tips of both second locking blocks (34) are facing the end where the forked segment (311) connects to the single rod segment (312).

5. A controllable endotracheal tube stylet according to claim 4, characterized in that: A guardrail (36) is provided at the through hole of the third pipe (113).

6. A controllable endotracheal tube stylet according to claim 5, characterized in that: Both the first guide wire (21) and the second guide wire (22) have tooth grooves that are adapted to the gear (23) at the end near the gear (23).

7. A controllable endotracheal tube stylet according to any one of claims 1 to 6, characterized in that: Each of the gears (23) has anti-slip particles on its teeth.

8. A controllable endotracheal tube stylet according to claim 7, characterized in that: Each gear (23) is equipped with a magnet inside, and the magnets in two adjacent gears (23) are magnets of the same polarity.

9. A controllable endotracheal tube stylet according to claim 8, characterized in that: The length of the first guidewire (21) is less than the length of the second guidewire (22).

10. A controllable endotracheal tube stylet according to claim 9, characterized in that: The flexible catheter core (1) is made of silicone.

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