Outer guide tube for assisting in replacing trachea cannula

Abstract

The utility model discloses an outer guide tube for assisting in replacing a trachea cannula, which belongs to the field of medical instruments and comprises a closing-in insertion section and a tube body section, and one end of the closing-in insertion section comprises a head closing-in opening; one end of the tube body section is connected with the other end of the closing-in insertion section, the other end of the tube body section comprises a tail opening, a guide opening is formed in the tube body section, the guide opening is formed in the axis direction of the tube body section, and the guide opening is communicated with the tail opening; the guide opening, the inner wall of the pipe body section and the inner wall of the closing-in insertion section jointly define a guide cavity. The trachea cannula has the advantages that the guide cavity replaces the trachea cannula to provide the breathing channel, the breathing channel is prevented from being blocked, and the technical problem of danger caused by breathing channel blocking of a patient when the trachea cannula is replaced is solved.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, in particular to an external guide tube for assisting in replacing a tracheal tube. Background Art

[0002] Endotracheal intubation involves inserting a specialized endotracheal tube through the mouth or nose, transglottis, and into the trachea or bronchus. This procedure provides optimal airway patency, ventilation, oxygenation, and suction, and is a crucial procedure for rescuing patients with respiratory dysfunction. To secure the tube and protect it from bite marks, a bite block is often used.

[0003] However, during actual use, the bite block can easily move due to the patient's agitation, coughing, or other reasons. This can cause the endotracheal tube to be flattened by the patient's back teeth, which can affect the oxygen supply and make it unusable. In this case, medical staff need to replace the endotracheal tube in a timely manner. Currently, the clinical method of replacing endotracheal tubes is generally to directly remove the flattened endotracheal tube and then re-intubate it using a laryngoscope or other tools. However, after the endotracheal tube is removed, if the patient's respiratory tract is blocked and a new endotracheal tube is not inserted in time, the patient will suffer serious consequences due to hypoxia.

[0004] For example, the utility model patent with patent number CN202121530323.3 discloses a fixed bite block for tracheal tube. A tracheal tube positioning sleeve is embedded on the inner ring of the bite block and on the outer wall of the bite block body for positioning the tracheal tube. During actual use, the bite block is prone to movement, making it easy for the tracheal tube to be flattened by the patient's back molars, and the flattened tracheal tube will affect the oxygen supply effect.

[0005] In view of this, the inventor conducted in-depth research on this demand, and thus came up with this case. Utility Model Content

[0006] In order to overcome the problem that endotracheal tubes are easily bitten flat in the prior art, a device is needed to assist in timely replacement of endotracheal tubes. The utility model provides an external guide tube for assisting in replacing endotracheal tubes, the endotracheal tube having an inner end and an outer end arranged opposite to each other, and the external guide tube comprises:

[0007] A closing insertion section, wherein one end of the closing insertion section includes a head closing;

[0008] a tube segment, one end of which is connected to the other end of the closing insertion segment, the other end of which includes a tail opening, the tube segment being provided with a guide opening arranged along the axis of the tube segment and communicating with the tail opening;

[0009] Among them, the guide port, the inner wall of the tube body section and the inner wall of the closing insertion section together form a guide cavity, and the guide cavity is wrapped around the outer circumference of the endotracheal tube. The head closing is set corresponding to the inner end of the endotracheal tube, and the tail opening is set corresponding to the outer end of the endotracheal tube.

[0010] Preferably, the inner diameter of the head closing is smaller than the inner diameter of the other end of the closing insertion section; the inner diameter of the head closing is larger than the outer diameter of the endotracheal tube.

[0011] Preferably, the guide port is a stepped port, comprising a first guide portion and a second guide portion, the central angle corresponding to the first guide portion and the central angle corresponding to the second guide portion being 90° to 120° respectively, the first guide portion being arranged close to the closing insertion section, the width of the first guide portion being smaller than the outer diameter of the endotracheal tube, the second guide portion being arranged close to the tail opening, the width of the second guide portion being larger than the outer diameter of the endotracheal tube.

[0012] Preferably, the end surface where the head opening is located is a slope.

[0013] Preferably, the acute angle between the inclined surface and the axis of the closing insertion section is 30° to 60°.

[0014] Preferably, a circle of identification color layer is respectively provided at the head closing part and the tail opening part.

[0015] Preferably, the outer periphery of the closing insertion section and the outer periphery of the tube body section are both provided with length markings.

[0016] Preferably, the length mark is arranged corresponding to the edge of the guide opening.

[0017] Preferably, the closing insertion section is made of silicone material.

[0018] Preferably, the tube body section is a sandwich structure, comprising a bendable skeleton layer in the middle and a soft silicone layer wrapped around the bendable skeleton layer, wherein the bendable skeleton layer is made of plastic.

[0019] Beneficial effects:

[0020] The beneficial effects produced by adopting the technical solution of this utility model are as follows:

[0021] (1) One end of the tube section is connected to the other end of the closing insertion section, and the tube section is provided with a guide opening, which is arranged along the axis of the tube section so that the guide opening, the inner wall of the tube section and the inner wall of the closing insertion section together form a guide cavity;

[0022] (2) One end of the closing insertion section includes a head closing section, and the other end of the tube body section includes a tail opening. The guide opening is connected to the tail opening, so that the external guide tube can be sequentially passed through the head closing section, the guide cavity, and the tail opening to be sleeved on the outer periphery of the endotracheal tube. At the same time, the guide cavity can replace the endotracheal tube to provide a breathing channel;

[0023] When used in endotracheal intubation surgery, the external guide tube is sequentially passed through the head opening, the guide cavity and the tail opening and is sleeved on the outer circumference of the old endotracheal tube, so that the head opening corresponds to the inner end setting of the old endotracheal tube, and the tail opening corresponds to the outer end setting of the old endotracheal tube. After reaching the position, the medical staff can pull out the old endotracheal tube, and then the medical staff inserts the new endotracheal tube into the airway through the tail opening, the guide cavity and the head opening in sequence. Between pulling out the old endotracheal tube and inserting the new endotracheal tube, the guide cavity replaces the endotracheal tube to provide a breathing passage, avoiding blockage of the breathing passage, so as to solve the dangerous technical problem caused by blockage of the patient's breathing passage when replacing the endotracheal tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a schematic diagram of the structure of the foreign guide tube in the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the foreign guide tube in the utility model;

[0027] Figure 3 For this utility model Figure 2 Middle AA section view;

[0028] Figure 4 This is a schematic structural diagram of the tracheal cannula and the external guide tube in the present invention;

[0029] Figure annotation:

[0030] 1-endotracheal tube, 1a-inner end, 1b-outer end, 2-head closing end, 3-tube body, 301-tail opening, 302-guide port, 303-bendable skeleton layer, 304-soft silicone layer, 305-first guide part, 306-second guide part, 4-guide cavity, 5-marking color layer, θ1-center angle corresponding to the first guide part, θ2-center of the circle corresponding to the second guide part, θ3-acute angle between the inclined surface and the axis of the closing insertion section. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Please refer to Figures 1 to 4 The present embodiment provides an external guide tube for assisting in replacing an endotracheal tube. The endotracheal tube 1 has an inner end 1a and an outer end 1b arranged relatively to each other. The external guide tube includes a closing insertion section and a tube body section 3. One end of the tube body section 3 is connected to the other end of the closing insertion section. The tube body section 3 is provided with a guide port 302. The guide port 302 is arranged along the axial direction of the tube body section 3, so that the guide port 302, the inner wall of the tube body section 3 and the inner wall of the closing insertion section together form a guide cavity 4; one end of the closing insertion section includes a head closing 2, and the other end of the tube body section 3 includes a tail opening 301. The guide port 302 is communicated with the tail opening 301, and the guide cavity 4 is wrapped around the outer periphery of the endotracheal tube 1. The head closing 2 is arranged corresponding to the inner end 1a of the endotracheal tube 1, and the tail opening 301 is arranged corresponding to the outer end 1b of the endotracheal tube 1, so that the external guide tube can pass through the head closing 2, the guide cavity 4 and the tail opening 301 in sequence. It is arranged on the outer periphery of the endotracheal cannula 1. At the same time, when the endotracheal cannula 1 is replaced, the guide cavity 4 can replace the endotracheal cannula 1 to provide a breathing passage. When the utility model is applied to endotracheal intubation surgery, the external guide tube is sequentially sleeved on the outer periphery of the old endotracheal cannula 1 through the head closing 2, the guide cavity 4 and the tail opening 301, so that the head closing 2 is arranged corresponding to the inner end 1a of the old endotracheal cannula 1, and the tail opening 301 is arranged corresponding to the outer end 1b of the old endotracheal cannula 1. After reaching the position, the medical staff can pull out the old endotracheal cannula 1, and then the medical staff inserts the new endotracheal cannula 1 into the patient's airway through the tail opening 301, the guide cavity 4 and the head closing 2 in sequence. Between pulling out the old endotracheal cannula 1 and inserting the new endotracheal cannula 1, the guide cavity 4 replaces the endotracheal cannula 1 to provide a breathing passage, thereby avoiding blockage of the breathing passage, thereby solving the dangerous technical problem caused by blockage of the patient's breathing passage when replacing the endotracheal cannula 1.

[0033] As a preferred embodiment, the inner diameter of the head closing 2 is smaller than the inner diameter of the other end of the closing insertion section, and the inner diameter of the head closing 2 is larger than the outer diameter of the tracheal cannula 1, which facilitates the outer guide tube to be put on the outside of the old tracheal cannula 1, and also facilitates the insertion of the new tracheal cannula 1, while avoiding injury to the patient's throat.

[0034] As a preferred embodiment, the guide port 302 is a stepped port, and the guide port 302 includes a first guide portion 305 and a second guide portion 306. The central angle θ1 corresponding to the first guide portion 305 and the central angle θ2 corresponding to the second guide portion 306 are respectively 90° to 120°, which has good covering properties for the tracheal cannula 1, preventing the tracheal cannula 1 from falling out of the guide cavity 4, while ensuring that the space in the guide cavity 4 is sufficient to ensure that the breathing passage is unobstructed; the first guide portion 305 is arranged near the closing insertion section, and the width of the first guide portion 305 is smaller than the outer diameter of the tracheal cannula 1; the second guide portion 306 is arranged near the tail opening 301, and the width of the second guide portion 306 is larger than the outer diameter of the tracheal cannula 1, which facilitates the removal of the old tracheal cannula 1 and the insertion of the new tracheal cannula 1 into the guide cavity 4.

[0035] As a preferred embodiment, the end face of the head closing 2 is a bevel, and the acute angle θ3 between the bevel and the axis of the closing insertion section is 30° to 60°, which makes it convenient to pass the external guide tube through the head closing 2 and place it outside the tracheal tube 1.

[0036] As a preferred embodiment, a color marking layer 5 is provided around the head opening 2 and the tail opening 301, respectively. This facilitates observation of the positional relationship between the external guide tube and the endotracheal tube 1. Length markings are also provided on the periphery of the insertion section and the tube body 3. The length markings correspond to the edge of the guide opening 302, making it easy to check whether the external guide tube and the new endotracheal tube 1 are properly inserted.

[0037] As a preferred embodiment, the closing insertion section is made of silicone material to avoid injury to the patient's throat.

[0038] As a preferred embodiment, the tube body section 3 is constructed as a sandwich structure composed of a bendable skeleton layer 303 located in the middle and a soft silicone layer 304 wrapped around the bendable skeleton layer 303. The bendable skeleton layer 303 allows the tube body section 3 to be bent along with the old endotracheal tube 1, and the use of silicone material can prevent the external guide tube from injuring the patient's throat. Among them, the bendable skeleton layer 303 is made of plastic, and the tube body section 3 has a good bending effect and is light in texture.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An external guide tube for assisting in the replacement of an endotracheal tube, the endotracheal tube having an inner end and an outer end disposed opposite to each other, characterized in that: The outer guide tube comprises: A closing insertion section, wherein one end of the closing insertion section includes a head closing; a tube segment, one end of which is connected to the other end of the closing insertion segment, the other end of which includes a tail opening, the tube segment being provided with a guide opening arranged along the axis of the tube segment and communicating with the tail opening; Among them, the guide port, the inner wall of the tube body section and the inner wall of the closing insertion section together form a guide cavity, and the guide cavity is wrapped around the outer circumference of the endotracheal tube. The head closing is set corresponding to the inner end of the endotracheal tube, and the tail opening is set corresponding to the outer end of the endotracheal tube.

2. The external guide tube for assisting in replacing an endotracheal tube according to claim 1, characterized in that: The inner diameter of the head closing is smaller than the inner diameter of the other end of the closing insertion section; the inner diameter of the head closing is larger than the outer diameter of the endotracheal tube.

3. The external guide tube for assisting in replacing an endotracheal tube according to claim 1, characterized in that: The guide port is a stepped port, comprising a first guide portion and a second guide portion, wherein the central angles corresponding to the first guide portion and the second guide portion are respectively 90° to 120°, the first guide portion is arranged close to the closing insertion section, and the width of the first guide portion is smaller than the outer diameter of the endotracheal tube, and the second guide portion is arranged close to the tail opening, and the width of the second guide portion is larger than the outer diameter of the endotracheal tube.

4. The external guide tube for assisting in replacing an endotracheal tube according to claim 1, characterized in that: The end surface where the head is closed is an inclined surface.

5. The external guide tube for assisting in replacing an endotracheal tube according to claim 4, characterized in that: The acute angle between the inclined surface and the axis of the closing insertion section is 30° to 60°.

6. The external guide tube for assisting in replacing an endotracheal tube according to claim 1, characterized in that: A circle of identification color layer is respectively provided at the head closing portion and the tail opening portion.

7. The external guide tube for assisting in replacing an endotracheal tube according to claim 1, characterized in that: The outer periphery of the closing insertion section and the outer periphery of the tube body section are both provided with a length mark.

8. The external guide tube for assisting in replacing an endotracheal tube according to claim 7, characterized in that: The length mark is arranged corresponding to the edge of the guide opening.

9. The external guide tube for assisting in replacing an endotracheal tube according to claim 1, characterized in that : The closing insertion section is made of silicone material.

10. An external guide tube for assisting in replacing an endotracheal tube according to any one of claims 1 to 9, characterized in that : The tube body section is a sandwich structure, comprising a bendable skeleton layer located in the middle and a soft silicone layer wrapped around the bendable skeleton layer, wherein the bendable skeleton layer is made of plastic.

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