Cable separation type nerve monitoring trachea cannula

Abstract

The utility model provides a cable separation type nerve monitoring trachea cannula, which comprises a cannula body, a contact electrode connecting wire and a lead wire, a plurality of mutually independent contact electrodes are arranged on the outer surface of the cannula body, the contact electrode connecting wire comprises a fixed cannula and leads, and the number of the leads is consistent with that of the contact electrodes. The cannula body is connected with one end of a contact electrode connecting line, and each contact electrode is connected with a corresponding lead; the lead wire is connected with the contact electrode connecting wire through the first connector and the second connector, and is detachably connected with the interface box through the third connector; each of the lead wire and the contact electrode connecting wire comprises a shielding layer, an encrypted woven mesh and an outer sheath, so that the problem of signal interference can be effectively solved. According to the utility model, a plurality of pairs of contact electrodes only need to be connected into one connector, rapid and stable connection among the contact electrode connecting wires, the lead wires and the interface box can be realized, and the lead wires can be dismounted for repeated sterilization after being used up, so that the use cost of the intubation tube is reduced.

Description

Technical fields:

[0001] This utility model belongs to the field of medical device technology, specifically relating to a cable-detachable neuromonitoring endotracheal tube. Background technology:

[0002] Neuromonitoring endotracheal intubation is used in thyroid surgery to monitor the recurrent laryngeal / vagus nerve. It provides real-time nerve signal data, helping doctors to promptly detect and manage potential nerve damage or abnormalities, reducing nerve injury during surgery. The neuromonitoring endotracheal tube is placed in the patient's airway, and the contact electrodes on the surface of the tube serve as recording channels directly connected to the patient's vocal cords and tracheal muscle tissue. This allows it to capture activity signals from the recurrent laryngeal and vagus nerves, thereby preventing damage to the recurrent laryngeal / vagus nerves during thyroidectomy.

[0003] Existing neurological monitoring endotracheal cannulas typically employ multiple contact electrode connection cables exceeding two meters in length. Connecting the cannulas to the interface box requires inserting multiple connectors into corresponding sockets within the interface box, a cumbersome process with a risk of incorrect insertion. Furthermore, most existing electrode connection cables lack shielding, resulting in weak interference resistance. Additionally, the electrode connection cables are integrated with the cannulas for single use, leading to resource waste. Therefore, this invention provides a cable-detachable neurological monitoring endotracheal cannulas to address these issues. Utility Model Content:

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a cable-detachable neuromonitoring endotracheal tube. The tube has only one short contact electrode connection wire and one long lead wire. Both the electrode connection wire and the lead wire are shielded, and the lead wire is detachable for easy sterilization and reuse.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a cable-detachable neurological monitoring endotracheal cannula, including a cannula body, contact electrode connecting wires, and lead wires; the outer surface of the cannula body is provided with a plurality of independent contact electrodes; the contact electrode connecting wires include a fixing sleeve and a number of wires equal to the number of contact electrodes, the wires being disposed within a flexible fixing sleeve, the fixing sleeve being bendable; one end of the cannula body is connected to one end of the contact electrode connecting wires, and each contact electrode is connected to its corresponding wire; one end of the lead wires is detachably and fixedly connected to the contact electrode connecting wires, and the other end is connected to an interface box; the lead wires and the contact electrode connecting wires have the same structure.

[0007] Furthermore, the fixing sleeves of the lead wire and the contact electrode connection wire each include a shielding layer, a dense braided mesh, and an outer sheath; the outer sheath is the outermost structure, and the dense braided mesh and the shielding layer are sequentially distributed inside the outer sheath, and the shielding layer, the dense braided mesh, and the outer sheath are fixedly connected; the shielding layer is provided with wires of the same number as the contact electrodes inside.

[0008] Furthermore, a first connector is fixedly connected to the end of the contact electrode connecting wire away from the contact electrode, and a second connector is provided at the connection end of the conductor wire and the contact electrode connecting wire. The second connector is detachably and fixedly connected to the first connector. The contact electrode connecting wire is detachably and fixedly connected to the conductor wire through the first connector and the second connector.

[0009] Furthermore, a third connector is fixedly connected to the end of the lead wire away from the contact electrode connection wire, and the lead wire is detachably connected to the interface box through the third connector.

[0010] Furthermore, the first connector includes a first connector head and a plug. The first connector head is connected to the contact electrode connecting line, and the plug is located at the end of the first connector head away from the contact electrode connecting line. The second connector includes a second connector head. One end of the second connector head is connected to the lead wire, and the other end has a mounting groove adapted to the first connector head. An interface groove is provided in the mounting groove. When the first connector head is inserted into the mounting groove, the plug is inserted into the interface groove to realize the conduction of electrical signals.

[0011] Furthermore, the outer wall of the connection end between the first connector and the lead wire is provided with a first elastic protrusion, and the inner wall of the mounting groove is provided with a second elastic protrusion. When the first connector is inserted into the mounting groove, it is engaged and fixed by the first elastic protrusion and the second elastic protrusion.

[0012] Furthermore, the outer wall of the cannula is provided with a bladder, and the bladder is connected to an inflation device through a bladder inflation tube.

[0013] Furthermore, the end of the intubation tube away from the cuff is provided with an endotracheal tube connector.

[0014] Furthermore, a fixing sleeve is provided at the connection between the contact electrode and the wire. The fixing sleeve is fitted onto the outer surface of the cannula body, the end of the contact electrode connecting wire is covered inside the fixing sleeve, and the end of the wire is fixed between the fixing sleeve and the cannula body.

[0015] Furthermore, one end of the contact electrode near the patient is exposed and in contact with the patient's trachea, while the remaining part of the contact electrode surface is provided with an insulating layer.

[0016] The beneficial effects of this utility model are:

[0017] (1) This utility model provides a cable-detachable neuromonitoring endotracheal cannula, in which multiple pairs of contact electrodes only need to be connected to a single connector, enabling rapid and stable connection of the contact electrode connection wires to the lead wires and interface boxes. Furthermore, having only one connector avoids the risk of incorrect insertion into the interface box socket;

[0018] (2) This utility model provides a cable-separated neuromonitoring endotracheal tube, which is equipped with only a short contact electrode connection wire and an additional lead wire as an extension wire of the contact electrode connection wire. The lead wire can be disassembled and sterilized for reuse after use, which reduces the cost of using the endotracheal tube.

[0019] (3) In this utility model, the fixing sleeve of the lead wire and the contact electrode connection wire both include a shielding layer, a dense braided mesh and an outer sheath. The shielding layer can effectively solve the signal interference problem, and the dense braided mesh and the outer sheath can protect the lead wire and the contact electrode connection wire and prevent the cable from being damaged.

[0020] (4) In this utility model, the lead wire and the contact electrode connection wire are detachably connected through the first connector and the second connector, which can ensure the connection force between the contact electrode connection wire and the lead wire and reduce the risk of the cable falling off. Attached image description:

[0021] Figure 1 This is a schematic diagram of the endotracheal intubation structure according to an embodiment of the present invention;

[0022] Figure 2 This is a diagram showing the connection between the contact electrode connection line and the lead wire in an embodiment of this utility model;

[0023] Figure 3 yes Figure 2 Enlarged view of section I;

[0024] Figure 4 This is a cross-sectional view of the contact electrode connection line or lead line of this utility model;

[0025] The labels in the attached diagram are:

[0026] 1. Endotracheal tube body; 2. Contact electrode; 3. Cuff; 4. Cuff inflation tube; 5. Endotracheal tube connector; 6. Contact electrode connection wire; 6a. First connector; 7. Lead wire; 7a. Second connector; 7b. Third connector; 8. Mounting slot; 9. Interface slot; 101. Wire; 102. Shielding layer; 103. Dense braided mesh; 104. Outer sheath. Detailed implementation method:

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] like Figure 1 As shown, this utility model provides a cable-detachable neurological monitoring endotracheal cannula, including a cannula body 1, contact electrode connecting wires 6 and lead wires 7. A cuff 3 is provided on the outer wall of the cannula body 1, and a gas channel is formed inside the cannula body 1. The cuff inflation tube 4 of the cuff 3 is connected to an inflation device through the gas channel. An endotracheal cannula connector 5 is provided at the end of the cannula body 1 away from the cuff 3.

[0029] The cannula body 1 has several (four) independent contact electrodes 2 on its outer surface. The contact electrode connecting line 6 includes a fixed sleeve and a number of wires matching the number of contact electrodes 2. The wires are housed within the flexible fixed sleeve, which is bendable. One end of the cannula body 1 is connected to the contact electrode connecting line 6, and each contact electrode 2 is connected to its corresponding wire. One end of the connecting line 7 is detachably and fixedly connected to the contact electrode connecting line 6, and the other end is connected to the interface box. The connecting line 7 has the same structure as the contact electrode connecting line 6.

[0030] like Figure 4 As shown, in a preferred embodiment, the fixing sleeves of both the lead wire 7 and the contact electrode connection wire 6 include a shielding layer 102, a dense braided mesh 103, and an outer sheath 104. The outer sheath 104 is the outermost structure. The dense braided mesh 103 and the shielding layer 102 are sequentially distributed inside the outer sheath 104, and the shielding layer 102, the dense braided mesh 103, and the outer sheath 104 are fixedly connected. The inner side of the shielding layer 102 is provided with wires 101 in the same number as the contact electrodes 2. The shielding layer 102 effectively solves the signal interference problem, and the dense braided mesh 103 protects the lead wire 7 and the contact electrode connection wire 6, preventing cable breakage.

[0031] like Figures 1-2As shown, in a preferred embodiment, a first connector 6a is fixedly connected to the end of the contact electrode connecting line 6 away from the contact electrode 2. A second connector 7a is provided at the connection end of the lead line 7 and the contact electrode connecting line 6. The second connector 7a is detachably and fixedly connected to the first connector 6a. The contact electrode connecting line 6 is detachably and fixedly connected to the lead line 7 through the first connector 6a and the second connector 7a. A third connector 7b is fixedly connected to the end of the lead line 7 away from the contact electrode connecting line 6. The lead line 7 is detachably connected to the interface box through the third connector 7b.

[0032] like Figures 2-3 As shown, the first connector 6a includes a first connector head and a plug. The first connector head is connected to the contact electrode connecting line 6, and the plug is located at the end of the first connector head away from the contact electrode connecting line 6. The second connector 7a includes a second connector head. One end of the second connector head is connected to the lead line 7, and the other end has a mounting groove 8 adapted to the first connector head. An interface groove 9 is provided in the mounting groove 8. When the first connector head is inserted into the mounting groove 8, the plug is inserted into the interface groove 9, thereby connecting the contact electrode connecting line 6 and each wire in the lead line 7, thus realizing the conduction of electrical signals.

[0033] More specifically, such as Figure 3 As shown, the outer wall of the connection end between the first connector and the lead wire 7 is provided with a first elastic protrusion, and the inner wall of the mounting groove 8 is provided with a second elastic protrusion. When the first connector is inserted into the mounting groove 8, the first elastic protrusion and the second elastic protrusion can mutually limit each other and be fixed by the first elastic protrusion and the second elastic protrusion, so as to increase the connection force between the contact electrode connection wire and the lead wire and reduce the risk of cable detachment. The second connector 7a is injection molded from a material with excellent wear resistance to avoid the protrusion structure on its inner surface from failing due to wear after repeated insertion and insertion with the first connector 6a.

[0034] like Figure 1 As shown, in a preferred embodiment, a fixing sleeve is provided at the connection between the contact electrode 2 and the wire. The fixing sleeve is fitted onto the outer surface of the intubation tube body 1, and the end of the contact electrode connecting wire 6 is covered inside the fixing sleeve. The end of the wire is fixed between the fixing sleeve and the intubation tube body 1. This design can achieve a stable connection between the contact electrode 2 and the wire, preventing it from falling off. One end of the contact electrode 2 near the patient is exposed and in contact with the patient's trachea, while the remaining part of the contact electrode 2 surface is provided with an insulating layer.

[0035] The above are merely preferred embodiments of this utility model. The scope of protection of this utility model is not limited to the above embodiments. All technical solutions that fall within the scope of this utility model are within the scope of protection of this utility model. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should be considered within the scope of protection of this utility model.

Claims

1. A cable-detachable endotracheal tube for neurological monitoring, characterized in that, It includes the cannula body (1), the contact electrode connecting wire (6), and the lead wire (7); The outer surface of the cannula body (1) is provided with several independent contact electrodes (2); the contact electrode connecting line (6) includes a fixed sleeve and a number of wires consistent with the number of contact electrodes (2), and the wires are set inside the fixed sleeve; the cannula body (1) is connected to one end of the contact electrode connecting line (6), and each contact electrode (2) is connected to the corresponding wire. One end of the lead wire (7) is detachably and fixedly connected to the contact electrode connection wire (6), and the other end is connected to the interface box; the lead wire (7) and the contact electrode connection wire (6) have the same structure.

2. The cable-detachable neuromonitoring endotracheal cannula according to claim 1, characterized in that, The fixing sleeves of the lead wire (7) and the contact electrode connection wire (6) both include a shielding layer (102), a dense braided mesh (103), and an outer sheath (104); The outer sheath (104) is the outermost structure. The densely woven mesh (103) and the shielding layer (102) are distributed sequentially inside the outer sheath (104), and the shielding layer (102), the densely woven mesh (103) and the outer sheath (104) are fixedly connected. The shielding layer (102) has wires (101) inside, which are the same number as the contact electrodes (2).

3. The cable-detachable neuromonitoring endotracheal cannula according to claim 1, characterized in that, The end of the contact electrode connecting line (6) away from the contact electrode (2) is fixedly connected to a first connector (6a), and the connection end of the conductor (7) and the contact electrode connecting line (6) is provided with a second connector (7a). The second connector (7a) and the first connector (6a) are detachably and fixedly connected. The contact electrode connecting line (6) is detachably and fixedly connected to the conductor (7) through the first connector (6a) and the second connector (7a).

4. The cable-detachable neuromonitoring endotracheal cannula according to claim 3, characterized in that, The end of the lead wire (7) away from the contact electrode connection wire (6) is fixedly connected to a third connector (7b), and the lead wire (7) is detachably connected to the interface box through the third connector (7b).

5. The cable-detachable neuromonitoring endotracheal cannula according to claim 3, characterized in that, The first connector (6a) includes a first connector head and a plug. The first connector head is connected to the contact electrode connecting line (6), and the plug is located at the end of the first connector head away from the contact electrode connecting line (6). The second connector (7a) includes a second connector head. One end of the second connector head is connected to the lead line (7), and the other end is provided with a mounting groove (8) that is adapted to the first connector head. An interface groove (9) is provided in the mounting groove (8). After the first connector is inserted into the mounting slot (8), the plug is inserted into the interface slot (9) to achieve the conduction of electrical signals.

6. The cable-detachable neuromonitoring endotracheal cannula according to claim 5, characterized in that, The first connector is provided with a first elastic protrusion on the outer wall of the connection end of the first connector and the lead wire (7), and the second elastic protrusion is provided on the inner wall of the mounting groove (8). When the first connector is inserted into the mounting groove (8), it is engaged and fixed by the first elastic protrusion and the second elastic protrusion.

7. The cable-detachable neuromonitoring endotracheal cannula according to claim 1, characterized in that, The outer wall of the cannula (1) is provided with a bladder (3), and the bladder (3) is connected to the inflation device through a bladder inflation tube (4).

8. The cable-detachable neuromonitoring endotracheal cannula according to claim 1, characterized in that, The end of the intubation tube (1) away from the cuff (3) is provided with an endotracheal tube connector (5).

9. The cable-detachable neuromonitoring endotracheal cannula according to claim 1, characterized in that, A fixing sleeve is provided at the connection between the contact electrode (2) and the wire. The fixing sleeve is fitted onto the outer surface of the cannula body (1). The end of the contact electrode connecting wire (6) is covered inside the fixing sleeve, and the end of the wire is fixed between the fixing sleeve and the cannula body (1).

10. The cable-detachable neuromonitoring endotracheal cannula according to claim 1, characterized in that, The contact electrode (2) is partially exposed at one end near the patient, while the remaining part of the contact electrode (2) is provided with an insulating layer.

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