Inflation-free trachea cannula

Abstract

The utility model discloses an inflation-free trachea cannula which comprises a trachea cannula body and a connector. An inflation-free sleeve bag is arranged at the patient end of the trachea cannula body, a pull rope is connected with the inflation-free sleeve bag after passing through the trachea cannula body so as to be used for controlling contraction of the inflation-free sleeve bag and further achieve expansion of the inflation-free sleeve bag to seal an airway of a patient, and the inflation-free sleeve bag is of a circular truncated cone structure. The utility model can be suitable for patients with different human anatomy structures, and can reduce the operation procedure of inflating the cuff by medical personnel in an operation; the situation that treatment is delayed due to tracheal intubation caused by cuff breakage is reduced; airway mucosa necrosis and postoperative scar stenosis of a patient caused by excessive inflation can be reduced; breathing machine related pneumonia caused by the fact that secretions enter the body of the patient due to too little inflation or wrinkles of the inflation-free cuff can be reduced; the phenomenon that the trachea cannula falls off due to movement of a patient during an operation can be reduced; when secretions or gastric reflux substances enter the airway of the patient, the secretions can be received more easily.

Description

Technical Field

[0001] This utility model relates to the field of endotracheal intubation technology, and in particular to an airless endotracheal intubation tube. Background Technology

[0002] In the field of general anesthesia, endotracheal intubation is the most commonly used product. However, with currently used cuff-supported endotracheal tubes, problems frequently arise: over-inflation by medical staff leads to excessive pressure, causing ischemia and necrosis of the tracheal mucosa, and postoperative scar stenosis. Under-inflation results in insufficient pressure, causing gastric reflux into the lungs and leading to pneumonia. Furthermore, during surgery, movement can cause the endotracheal tube to dislodge or shift. For patients with abnormal airway anatomy, existing inflatable cylindrical cuffs are often insufficient.

[0003] A US patent application, US20160228662A1, published on August 6, 2019, discloses a method of sealing the patient's airway by injecting liquid into the cuff's inner layer and gas into the inner layer. This method is complex for medical personnel to operate, and if the cuff ruptures, liquid can leak into the patient's lungs; it is also difficult to implement from a manufacturing perspective. A Chinese patent application, 202123190320.2, entitled "Inflatable Endotracheal Intubation," published on January 17, 2023, discloses an inverted conical cuff. This design makes it easy for secretions to enter the patient's airway, leading to bacterial infection and ventilator-associated pneumonia.

[0004] Solving the above-mentioned problems with endotracheal intubation has become a major technical challenge. Utility Model Content

[0005] The purpose of this invention is to provide a non-inflatable endotracheal intubation system. The non-inflatable cuff has a frustum-shaped cone structure, which unfolds into an umbrella-shaped cone structure. This reduces the number of surgical procedures for medical staff; it is suitable for different patients' airway anatomy; it can reduce airway mucosal necrosis and postoperative scar stenosis caused by over-inflation; it can also reduce the risk of ventilator-associated pneumonia caused by under-inflation or secretions entering the patient's body through the folds of the non-inflatable cuff; it can also reduce the risk of endotracheal tube dislodgement due to patient movement during surgery, and it is easier to catch secretions or gastric reflux into the patient's airway.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An inflatable endotracheal tube includes an endotracheal tube body and a connector. An inflatable cuff is located at the patient end of the endotracheal tube body. A pull cord passes through the endotracheal tube body and connects to the inflatable cuff to control the contraction of the inflatable cuff, thereby achieving the expansion of the inflatable cuff to seal the patient's airway. The inflatable cuff has a frustum-shaped structure. The inflatable cuff can be of different specifications, with varying frustum-shaped cone sizes. Furthermore, the inflatable cuff can be used with any airway product, such as a double-lumen endotracheal tube, a single-lumen endotracheal tube, or a tracheostomy tube, etc. It is not limited to any type of intubation product.

[0008] Preferably, the airless cuff includes a frustum-shaped cuff, a contraction line, a sliding ring, and at least one reinforcing rib. One end of the reinforcing rib is fixed inside the cuff, and the other end of the reinforcing rib is connected to the sliding ring. When the pull cord is pulled, the cuff is contracted under the action of the contraction line. When the contraction line is released, the cuff is automatically opened to the required size according to the airway size under the action of the reinforcing rib.

[0009] Preferably, the end of the pull rope is connected to a pull ring for controlling the contraction of the sheath.

[0010] Preferably, the airless bladder is made of PVC, PU, ​​or TPE material.

[0011] Preferably, the reinforcing rib and the sleeve are integrally injection molded or bonded together.

[0012] Preferably, the reinforcing rib has a flexible wrapping layer to protect against damage to the airway mucosa.

[0013] Preferably, the endotracheal tube is provided with at least one suction hole, which is located near the base of the cuff, to better aspirate the patient's secretions.

[0014] Preferably, a suction tube and a suction connector are also provided near the machine end of the endotracheal tube.

[0015] Due to the adoption of the above structure, the beneficial effects of this utility model are as follows:

[0016] This invention provides a non-inflatable endotracheal tube, comprising an endotracheal tube body and a connector. A non-inflatable cuff is located at the patient end of the endotracheal tube body. A pull cord passes through the endotracheal tube body and connects to the non-inflatable cuff to control the contraction of the cuff, thereby achieving its expansion to seal the patient's airway. The non-inflatable cuff has a frustum-shaped cone structure, which unfolds into an umbrella-shaped cone structure. Therefore, by pulling the pull cord, the contraction of the non-inflatable cuff is controlled, thereby achieving its expansion to seal the patient's airway. The cuff can self-adjust according to different airway anatomy structures.

[0017] In summary, the purpose of this invention is to provide a conical, non-inflatable cuff for endotracheal intubation. The non-inflatable cuff has a frustum-shaped conical structure that unfolds into an umbrella-shaped conical structure, which can reduce the number of surgical procedures for medical staff; it is suitable for different patients' airway anatomy; it can reduce the risk of airway mucosal necrosis and postoperative scar stenosis caused by over-inflation; it can also reduce the risk of ventilator-associated pneumonia caused by under-inflation or secretions entering the patient's body through the folds of the non-inflatable cuff; it can also reduce the risk of endotracheal tube dislodgement due to patient movement during surgery; in addition, when secretions or gastric reflux enter the patient's airway, this umbrella-shaped conical structure can catch these secretions and remove them through the suction port.

[0018] The present invention will become clearer from the following description and in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art 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 an overall product image of the sheath of this utility model when it is opened;

[0021] Figure 2 This is the utility model Figure 1 The enlarged view of a portion of the non-inflatable bladder shown;

[0022] Figure 3 This is an overall product image of the sheath of this utility model when it is retracted;

[0023] Figure 4 This is a top view of the airless bladder of this utility model; Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please refer to Figure 1-4An inflatable endotracheal tube is provided, comprising an endotracheal tube body 2 and a connector 7. An inflatable cuff 1 is provided at the patient end of the endotracheal tube body 2. A pull cord 3 passes through the endotracheal tube body 2 and connects to the inflatable cuff 1 to control the contraction of the inflatable cuff 1 and thus achieve the expansion of the inflatable cuff 1 to seal the patient's airway. The inflatable cuff 1 has a frustum-shaped structure and can be of different specifications and sizes without affecting the scope of protection of this utility model. Furthermore, the inflatable cuff 1 can be used with any airway product, such as a double-lumen endotracheal tube, a single-lumen endotracheal tube, a tracheostomy tube, etc., and is not limited to any type of intubation product.

[0026] Preferably, the airless cuff 1 includes a frustum-shaped cuff 1-1, a contraction line 1-2, a sliding ring 1-3, and at least one reinforcing rib 1-4. One end of the reinforcing rib 1-4 is fixed inside the cuff 1-1, and the other end of the reinforcing rib 1-4 is connected to the sliding ring 1-3. When the pull cord 3 is pulled, it is used to contract the cuff 1-1 under the action of the contraction line 1-2. And when the contraction line 1-2 is released, it is used to automatically open the cuff 1-1 to the required size according to the airway size under the action of the reinforcing rib 1-4.

[0027] Preferably, the end of the pull rope 3 is connected to a pull ring 4 for controlling the contraction of the sheath 1-1.

[0028] Preferably, the airless bladder 1 is made of various materials such as PVC, PU, ​​or TPE without affecting the scope of protection of this utility model.

[0029] Preferably, the reinforcing rib 1-4 and the sleeve 1-1 are integrally injection molded or bonded together.

[0030] Preferably, the reinforcing ribs 1-4 are covered with a flexible wrapping layer to protect against damage to the airway mucosa.

[0031] Preferably, the endotracheal tube body 2 is provided with at least one suction hole, which is located near the root of the cuff 1-1, so as to better aspirate the patient's secretions.

[0032] Preferably, a suction tube 5 and a suction connector 6 are also provided near the machine end of the endotracheal tube body 2.

[0033] In this invention, the contraction of the airless cuff 1 is controlled by pulling the pull rope 3, thereby achieving the expansion of the cuff 1-1 to seal the patient's airway. The cuff 1-1 can self-adjust according to different airway anatomy structures. In this invention, the airless cuff 1 has a frustum-shaped cone structure, unfolding like an umbrella and forming a cone shape, suitable for patients with different anatomical structures. It can be freely adjusted according to the patient's airway structure dimensions until the airway is sealed, reducing surgical procedures for medical staff. It is suitable for different patients' airway anatomy structures; it reduces the risk of airway mucosal necrosis and postoperative scar stenosis due to over-inflation; it also reduces the risk of ventilator-associated pneumonia caused by insufficient inflation or secretions entering the patient's body through the folds of the airless cuff; it also reduces the risk of endotracheal tube dislodgement due to patient movement during surgery; furthermore, when secretions or gastric reflux enter the patient's airway, this airless cuff 1 can more easily collect these secretions and remove them through the suction port on the endotracheal tube body 2.

[0034] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

Claims

1. A non-inflatable endotracheal cannula, comprising an endotracheal cannula body (2) and a connector (7); characterized in that: An airless cuff (1) is provided at the patient end of the endotracheal tube body (2). A pull rope (3) passes through the endotracheal tube body (2) and is connected to the airless cuff (1) to control the contraction of the airless cuff (1) and thus realize the expansion of the airless cuff (1) to seal the patient's airway. The airless cuff (1) has a frustum cone structure.

2. The non-inflatable endotracheal cannula according to claim 1, characterized in that: The non-inflatable cuff (1) includes a frustum-shaped cuff (1-1), a contraction line (1-2), a sliding ring (1-3), and at least one reinforcing rib (1-4). One end of the reinforcing rib (1-4) is fixed inside the cuff (1-1), and the other end of the reinforcing rib (1-4) is connected to the sliding ring (1-3). When the pull rope (3) is pulled, it is used to cause the cuff (1-1) to contract under the action of the contraction line (1-2). When the contraction line (1-2) is released, it is used to cause the cuff (1-1) to automatically open to the required size according to the airway size under the action of the reinforcing rib (1-4).

3. The non-inflatable endotracheal cannula according to claim 2, characterized in that: The end of the pull rope (3) is connected to a pull ring (4) for controlling the contraction of the sheath (1-1).

4. The non-inflatable endotracheal cannula according to claim 2, characterized in that: The airless bladder (1) is made of PVC, PU or TPE material.

5. A non-inflatable endotracheal tube according to claim 2 or 3, characterized in that: The reinforcing ribs (1-4) and the sleeve (1-1) are integrally injection molded or bonded together.

6. The non-inflatable endotracheal cannula according to claim 5, characterized in that: The reinforcing ribs (1-4) are covered with a flexible wrapping layer to protect against damage to the airway mucosa.

7. A non-inflatable endotracheal tube according to claim 2 or 3, characterized in that: The endotracheal tube body (2) is provided with at least one suction hole, which is located near the root of the cuff (1-1) to better aspirate the patient's secretions.

8. A non-inflatable endotracheal tube according to claim 1 or 2, characterized in that: A suction tube (5) and a suction connector (6) are also provided near the machine end of the endotracheal tube body (2).

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