A local external expansion nerve monitoring endotracheal intubation

Abstract

The present invention provides a localized external expansion nerve monitoring endotracheal tube, wherein the tube body is composed of an inner wall layer and an outer sheath layer from the inside to the outside; the outer sheath layer has a localized external expansion section, and the contact electrode is arranged on the outer surface of the localized external expansion section; the localized external expansion section is provided with a vent, one end of the external expansion filling tube is connected to the vent, and the other end is provided with an external expansion filling interface for introducing a filling medium to fill the localized external expansion section and enable the contact electrode to contact the nerve; one end of the fixed balloon filling tube is connected to the fixed balloon, and the other end is provided with a fixed balloon filling interface for introducing a filling medium to fill the fixed balloon at the end of the tube body to fix the tube body; one end of the electrode connection line is connected to the contact electrode, and the other end is provided with a signal connector for transmitting the nerve signal monitored by the contact electrode to the nerve monitor; the monitoring system monitors the gas flow of the tube body in real time. After adopting the above technical solution, the contact electrode can fully contact the nerve and avoid the patient's breathing difficulties during use.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, in particular to a local external expansion nerve monitoring tracheal intubation. Background Art

[0002] A neuromonitoring endotracheal tube is a product used to prevent and manage airway obstruction during surgical procedures such as thyroidectomy. It provides a clear airway for patient ventilation and, when connected to a suitable neuromonitor, can be used as a tool for intraoperative monitoring of the EMG signals of the patient's laryngeal muscles. However, in clinical practice, most existing neuromonitoring endotracheal tubes are unable to provide immediate and continuous nerve monitoring during surgical resection. Specifically, the contact electrodes cannot effectively and fully contact the nerves of the intrinsic laryngeal muscles, often resulting in inability to perform monitoring and surgical procedures simultaneously, leading to delayed detection of neurological impairment. Summary of the Invention

[0003] In order to overcome the above technical defects, the purpose of the present invention is to provide a local external expansion nerve monitoring endotracheal tube for controlling the contact electrode to fully contact the intrinsic laryngeal muscle nerve.

[0004] The present invention discloses a local external expansion nerve monitoring endotracheal cannula, comprising a tube body, an electrode connection line, a contact electrode, a fixed balloon, an external expansion filling tube, a fixed balloon filling tube, and a monitoring system;

[0005] The tube body is composed of an inner wall layer and an outer sheath layer from the inside to the outside, wherein a hollow cavity is formed inside the inner wall layer for passing the respiratory airflow, and the outer sheath layer is covered outside the inner wall layer for protecting the inner wall layer;

[0006] The external expansion filling tube, the fixed balloon filling tube, and the electrode connection wire are attached to the outer surface of the outer sheath layer, and the fixed balloon is arranged at the end of the tube body;

[0007] The outer sheath layer has a partially expanded section, the contact electrode is arranged on the outer surface of the partially expanded section, the partially expanded section is provided with a vent, one end of the expanded filling tube is connected to the vent, and the other end is provided with an expanded filling interface for introducing a filling medium to fill the space between the partially expanded section and the support layer, causing the partially expanded section to expand outward, and the contact electrode contacts the nerve;

[0008] One end of the fixed balloon filling tube is connected to the fixed balloon, and the other end is provided with a fixed balloon filling interface for introducing a filling medium to fill the fixed balloon, so that the tube body is fixed in the human body cavity;

[0009] One end of the electrode connection line is connected to the contact electrode, and the other end is provided with a signal connector for connecting to a nerve monitor, so as to transmit the nerve signal monitored by the contact electrode to the nerve monitor;

[0010] The monitoring system includes an airflow monitoring unit and an airflow display unit, wherein the airflow display unit is arranged on the outer surface of the monitoring system, and the airflow monitoring unit is arranged inside the monitoring system and electrically connected to the airflow display unit;

[0011] The monitoring system is provided with an airflow monitoring pipeline which is connected to the air source end of the tube body so that the airflow in the tube body enters the airflow monitoring channel;

[0012] The airflow monitoring unit is partially connected to the side wall of the airflow monitoring channel to obtain the airflow signal in the airflow monitoring channel and transmit it to the airflow display unit;

[0013] When the airflow signal in the airflow monitoring pipe obtained by the airflow display unit is lower than a first preset threshold, the airflow display unit issues an alarm notification.

[0014] Preferably, the airflow monitoring unit includes a turbofan, and when the airflow passes through the airflow monitoring channel, the turbofan is driven to rotate, and the airflow monitoring unit obtains the rotation speed of the turbofan and transmits it to the airflow display unit;

[0015] When the airflow display unit detects that the rotation speed of the turbofan is lower than a second preset threshold, the airflow display unit issues an alarm notification.

[0016] Preferably, a support layer is further provided between the inner wall layer and the outer sheath layer. The support layer is a spring provided around the inner wall layer, and is used to enhance the strength of the tube body to prevent deformation.

[0017] Preferably, there are a plurality of contact electrodes and electrode connecting wires, and the plurality of contact electrodes are symmetrically distributed on the outer surface of the local outward expansion section, and the plurality of electrode connecting wires are respectively connected to the plurality of contact electrodes in a one-to-one correspondence;

[0018] When a filling medium is introduced into the outward expansion filling tube, the space between the local outward expansion section and the support layer is filled, causing the local outward expansion section to expand outward, and the multiple contact electrodes to contact the nerves.

[0019] Preferably, the contact electrode is composed of electrode wire or conductive ink.

[0020] Preferably, the elastic coefficient of the local expanded section is greater than the elastic coefficient of other parts of the outer sheath layer.

[0021] Preferably, the end opening of the tube body is an inclined surface.

[0022] Compared with the existing technology, the above technical solution has the following beneficial effects:

[0023] 1. By filling a local segment of the outer sheath of the endotracheal tube, the contact electrode can fully contact the nerve, and the monitored nerve signal remains stable;

[0024] 2. Real-time monitoring of the gas flow in the endotracheal tube to avoid shortness of breath and suffocation of the patient during use; BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a localized external expansion nerve monitoring endotracheal cannula provided by the present invention;

[0026] Figure 2 A schematic cross-sectional view of a local expansion section provided by the present invention;

[0027] Figure 3 A schematic cross-sectional view of a tube body provided by the present invention;

[0028] Figure 4 A schematic structural diagram of a localized external expansion nerve monitoring endotracheal cannula provided by the present invention;

[0029] Figure 5 This is a structural diagram of a monitoring system provided by the present invention.

[0030] Figure numerals: 1 is the tube body; 11 is the inner wall layer; 12 is the support layer; 13 is the outer sheath layer; 131 is the local outer span section; 2 is the electrode connection line; 21 is the signal connector; 3 is the contact electrode; 4 is the external expansion filling tube; 41 is the external expansion filling interface; 5 is the fixed balloon; 6 is the fixed balloon filling tube; 61 is the fixed balloon filling interface; 7 is the monitoring system; 71 is the airflow monitoring unit; 72 is the airflow display unit; 73 is the airflow monitoring pipeline. DETAILED DESCRIPTION

[0031] The advantages of the present invention are further described below with reference to the accompanying drawings and specific embodiments.

[0032] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0033] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0034] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining."

[0035] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0036] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal communication between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0037] In the following description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present invention and have no specific meaning. Therefore, "module" and "component" can be used interchangeably.

[0038] like Figures 1 to 5 As shown, the present invention discloses a local external expansion neurological monitoring endotracheal tube, comprising a tube body 1, an electrode connection line 2, a contact electrode 3, a fixed balloon 5, an external expansion filling tube 4, and a fixed balloon filling tube 6;

[0039] The tube body 1 is composed of an inner wall layer 11 and an outer sheath layer 13 from the inside to the outside. The inner wall layer 11 forms a hollow cavity inside to allow the respiratory airflow to pass through. The outer sheath layer 13 is coated outside the inner wall layer to protect the inner wall layer 11.

[0040] The external expansion filling tube 4, the fixed balloon filling tube 6, and the electrode connection line 2 are attached to the outer surface of the outer sheath layer 13, and the fixed balloon 5 is set at the end of the tube body 1;

[0041] The outer sheath 13 has a localized outward expansion section 131. The contact electrode 3 is disposed on the outer surface of the localized outward expansion section 131. A vent is formed on the localized outward expansion section 131. One end of the outward expansion filling tube 4 is connected to the vent, and the other end is provided with an outward expansion filling interface 41 for connecting to an external filling device. After a filling medium is introduced into the outward expansion filling interface 41, the filling medium is transmitted through the outward expansion filling tube 4 and enters the localized outward expansion section 131 at the outward expansion interface 41. Due to the introduction of the filling medium into the localized outward expansion section 131, a structure similar to an air storage cavity is formed between the interior of the localized outward expansion section 131 and the inner wall layer 11, causing the localized outward expansion section 131 to expand outward. That is, the diameter of the localized outward expansion section 131 is slightly larger than that of other parts of the outer sheath 13, so that the contact electrode 3 contacts the nerve.

[0042] One end of the fixed balloon filling tube 6 is connected to the fixed balloon 5, and the other end is provided with a fixed balloon filling port 61 for connecting to an external filling device. It is understood that when using the local external expansion neurological monitoring endotracheal tube provided by the present invention, the end of the tube body 1 is inserted into the human body cavity, and the filling medium is introduced through the fixed balloon filling port 61. The filling medium passes through the fixed balloon filling tube 6 and enters the fixed balloon 5. After the fixed balloon 5 is inflated and expanded, it is stuck in the human body cavity, so that the tube body 1 remains fixed as a whole and does not move within the human body cavity.

[0043] One end of the electrode connection line 2 is connected to the contact electrode 3 , and the other end is provided with a signal connector 21 for connecting to a nerve monitor, for transmitting the nerve signal monitored by the contact electrode 3 to the nerve monitor.

[0044] Preferably, if Figures 2 and 3 As shown, a support layer 12 is further provided between the inner wall layer 11 and the outer sheath layer 13 . The support layer 12 is a spring provided around the inner wall layer 11 and is used to enhance the strength of the tube body 1 to prevent deformation.

[0045] Preferably, if Figure 2As shown, there are multiple contact electrodes 3 and electrode connecting wires 2, and the multiple contact electrodes 3 are symmetrically distributed on the outer surface of the local expansion section 131, and the multiple electrode connecting wires 2 are connected to the multiple contact electrodes 3 in a one-to-one correspondence;

[0046] When a filling medium is introduced into the outward expansion filling tube 4 , the space between the local outward expansion section 131 and the support layer 12 is filled, causing the local outward expansion section 131 to expand outward, and the multiple contact electrodes 3 to contact the nerves.

[0047] Preferably, if Figures 4 and 5 As shown, the monitoring system 7 is further included, and the monitoring system 7 includes an airflow monitoring unit 71 and an airflow display unit 72. The airflow display unit 72 is provided on the outer surface of the monitoring system 7, and the airflow monitoring unit 71 is provided inside the monitoring system 7 and is electrically connected to the airflow display unit 72.

[0048] The monitoring system 7 is provided with an airflow monitoring channel 73 which is in communication with the air source end of the tube body 1 so that the airflow in the tube body 1 enters the airflow monitoring channel 73.

[0049] The airflow monitoring unit 71 is partially connected to the side wall of the airflow monitoring channel 73 to obtain the airflow signal in the airflow monitoring channel 73 and transmit it to the airflow display unit 72;

[0050] When the airflow signal in the airflow monitoring pipe 73 obtained by the airflow display unit 72 is lower than a first preset threshold, the airflow display unit 72 issues an alarm notification.

[0051] Preferably, if Figure 5 As shown, the airflow monitoring unit 71 includes a turbofan. When the airflow passes through the airflow monitoring channel 73, the turbofan is driven to rotate. The airflow monitoring unit 71 obtains the rotation speed of the turbofan and transmits it to the airflow display unit 72.

[0052] When the airflow display unit 72 detects that the rotation speed of the turbofan is lower than a second preset threshold, the airflow display unit 72 issues an alarm notification.

[0053] It is understood that in the above solution, the rotational speed of the turbofan can indirectly indicate the flow rate of the airflow through the airflow monitoring channel 73. When the rotational speed of the turbofan is lower than the third preset threshold, it can be considered that the flow rate of the airflow in the airflow monitoring channel 73 is low, that is, the flow rate of the airflow in the tube body 1 connected to the airflow monitoring channel 73 is low. This can indicate that the patient is currently experiencing shortness of breath and issue an alarm notification to prompt medical staff to promptly perform maintenance. This allows real-time monitoring of the gas flow in the endotracheal tube, avoiding the failure to promptly detect shortness of breath or suffocation during use.

[0054] Preferably, the contact electrode 3 is composed of electrode wire or conductive ink.

[0055] Preferably, the elastic coefficient of the local expansion section 131 is greater than the elastic coefficient of other parts of the outer sheath 13, so that when the filling medium is introduced, the local expansion section 131 is more likely to expand than other parts of the outer sheath 13.

[0056] Preferably, if Figure 1 As shown, the end opening of the tube body 1 is an inclined surface, which makes the tube body 1 smoother and more convenient to insert into the human body cavity.

[0057] It should be noted that the embodiments of the present invention have better practicability and do not impose any form of limitation on the present invention. Any technician familiar with the field may use the technical content disclosed above to change or modify it into an equivalent effective embodiment. However, any modification or equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A localized external expansion nerve monitoring endotracheal intubation, characterized in that: It includes a tube body, electrode connection wires, contact electrodes, a fixed balloon, an external expansion filling tube, a fixed balloon filling tube, and a monitoring system; The tube body is composed of an inner wall layer and an outer sheath layer from the inside to the outside, wherein a hollow cavity is formed inside the inner wall layer for passing the respiratory airflow, and the outer sheath layer is covered outside the inner wall layer for protecting the inner wall layer; The external expansion filling tube, the fixed balloon filling tube, and the electrode connection wire are attached to the outer surface of the outer sheath layer, and the fixed balloon is arranged at the end of the tube body; The outer sheath layer has a local expansion section, the contact electrode is arranged on the outer surface of the local expansion section, a vent is provided on the local expansion section, one end of the expansion filling tube is connected to the vent, and the other end is provided with an expansion filling interface for introducing a filling medium to fill the local expansion section so that the local expansion section expands outward, and the contact electrode contacts the nerve, wherein a support layer is further provided between the inner wall layer and the outer sheath layer, and the support layer is a spring arranged around the inner wall layer, and is used to enhance the strength of the tube body to prevent deformation. shape; there are multiple contact electrodes and electrode connecting wires, the multiple contact electrodes are symmetrically distributed on the outer surface of the local expansion section, and the multiple electrode connecting wires are connected to the multiple contact electrodes in a one-to-one correspondence; when the filling medium is introduced into the expansion filling tube, the space between the local expansion section and the support layer is filled, causing the local expansion section to expand outward, the multiple contact electrodes contact the nerve, and an air storage cavity is formed between the interior of the local expansion section and the inner wall layer, and the diameter of the local expansion section is slightly larger than that of other parts of the outer sheath; One end of the fixed balloon filling tube is connected to the fixed balloon, and the other end is provided with a fixed balloon filling interface for introducing a filling medium to fill the fixed balloon, so that the tube body is fixed in the human body cavity; One end of the electrode connection line is connected to the contact electrode, and the other end is provided with a signal connector for connecting to a nerve monitor, so as to transmit the nerve signal monitored by the contact electrode to the nerve monitor; The monitoring system includes an airflow monitoring unit and an airflow display unit, wherein the airflow display unit is arranged on the outer surface of the monitoring system, and the airflow monitoring unit is arranged inside the monitoring system and electrically connected to the airflow display unit; The monitoring system is provided with an airflow monitoring pipeline, which is connected to the air source end of the tube body, so that the airflow in the tube body enters the airflow monitoring pipeline; The airflow monitoring unit is partially connected to the side wall of the airflow monitoring pipe to obtain the airflow signal in the airflow monitoring pipe and transmit it to the airflow display unit; When the airflow signal in the airflow monitoring pipe obtained by the airflow display unit is lower than a first preset threshold, the airflow display unit issues an alarm notification.

2. The localized external expansion nerve monitoring endotracheal tube according to claim 1, characterized in that: The airflow monitoring unit includes a turbofan, and when airflow passes through the airflow monitoring pipe, the turbofan is driven to rotate. The airflow monitoring unit obtains the rotation speed of the turbofan and transmits it to the airflow display unit; When the airflow display unit detects that the rotation speed of the turbofan is lower than a second preset threshold, the airflow display unit issues an alarm notification.

3. The localized external expansion nerve monitoring endotracheal tube according to claim 1, characterized in that: The contact electrodes are composed of electrode wires or conductive ink.

4. The localized external expansion nerve monitoring endotracheal tube according to claim 1, characterized in that: The elastic coefficient of the local expanded section is greater than the elastic coefficient of other parts of the outer sheath layer.

5. The localized external expansion nerve monitoring endotracheal tube according to claim 1, characterized in that: The end opening of the tube body is an inclined surface.

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