Adjustable multichannel nerve monitoring trachea cannula

Abstract

The utility model provides an adjustable multi-channel nerve monitoring trachea cannula which is characterized in that a part of an outer sheath layer in a cannula body protrudes in the axial direction of the cannula body to form a plurality of adjusting channels, and a plurality of electrode connecting lines are arranged in the adjusting channels in a penetrating mode respectively; the adjusting handle is provided with a plurality of adjusting knobs, the plurality of adjusting knobs are in one-to-one correspondence with the plurality of electrode connecting wires, and the plurality of electrode connecting wires are in one-to-one correspondence with the plurality of contact electrodes; the first end of any electrode connecting wire is connected with the contact electrode corresponding to the electrode connecting wire, and the second end of any electrode connecting wire penetrates through the adjusting knob corresponding to the electrode connecting wire, so that when any adjusting knob rotates, the electrode connecting wire penetrating through the adjusting knob is driven to axially move in the corresponding adjusting channel, and the contact electrode corresponding to the electrode connecting wire is tilted. According to the technical scheme of the utility model, different contact electrodes can be respectively adjusted in multiple channels, so that the contact electrodes are fully contacted with nerves, and monitored neural signals are continuous and stable.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to an adjustable multi-channel nerve monitoring tracheal cannula. Background Art

[0002] The neuro-monitoring endotracheal tube is a product used to prevent and treat airway obstruction during surgical procedures such as thyroidectomy. It can provide an unobstructed airway for patients to ventilate. At the same time, the product is also used to connect to a suitable neuro-monitoring device and can be used as a tool to monitor the EMG signals of the patient's laryngeal muscles during surgery. However, in clinical applications, most of the existing neuro-monitoring endotracheal tubes are unable to monitor the nerves immediately and continuously during surgical resection, that is, the contact electrodes cannot effectively and completely contact the laryngeal muscle nerves, and there are often problems such as the inability to perform monitoring and surgical operations at the same time, and the delay in discovering nerve function damage. Utility Model Content

[0003] In order to overcome the above technical defects, the purpose of the utility model is to provide an adjustable multi-channel neurological monitoring endotracheal cannula.

[0004] The utility model discloses an adjustable multi-channel nerve monitoring tracheal cannula, which is characterized by comprising a tube body, a plurality of electrode connecting wires, a plurality of contact electrodes, and an adjustment handle;

[0005] The tube body is composed of an inner wall layer and an outer sheath layer from the inside to the outside, the inner wall layer is hollow, and the outer sheath layer is coated outside the inner wall layer;

[0006] The outer sheath layer is partially raised along the axial direction of the tube body to form a plurality of adjustment channels, the plurality of electrode connection lines are respectively inserted into the plurality of adjustment channels, the outer sheath layer is provided with a contact notch near the end of the tube body, and the plurality of contact electrodes are arranged in the contact notch;

[0007] The adjustment handle is provided with a plurality of adjustment knobs, the plurality of adjustment knobs correspond one-to-one to the plurality of electrode connecting wires, and the plurality of electrode connecting wires correspond one-to-one to the plurality of contact electrodes;

[0008] The first end of any electrode connection line is connected to the contact electrode corresponding to the electrode connection line, and the second end passes through the adjustment knob corresponding to the electrode connection line, so that when any adjustment knob is rotated, the electrode connection line passing through the adjustment knob is driven to move axially in the corresponding adjustment channel, so that the contact electrode corresponding to the electrode connection line is tilted to fully contact the nerve.

[0009] Preferably, any of the adjusting knobs comprises a fixed base and a rotating shaft, the rotating shaft comprises a positioning portion and a rotating portion connected to each other, the positioning portion is embedded in the fixed base, the rotating portion is exposed outside the fixed base, the fixed base is provided with a first through hole, the positioning portion is provided with a second through hole, and the first through hole and the second through hole overlap in the vertical direction;

[0010] The second end of the electrode connection line corresponding to any one of the adjusting knobs passes through the first through hole and the second through hole of the adjusting knob.

[0011] Preferably, it further comprises a fixed balloon and a fixed balloon filling tube, wherein the fixed balloon is arranged at the end of the tube body, and the fixed balloon filling tube is attached to the outer surface of the outer sheath layer;

[0012] The outlet end of the fixed balloon filling tube is connected to the fixed balloon, and the inlet 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.

[0013] Preferably, a signal connector for connecting to a nerve monitor is provided on the second end of any of the electrode connecting wires.

[0014] Preferably, a support layer is further provided between the inner wall layer and the outer sheath layer, and the support layer is a spring provided around the inner wall layer.

[0015] Preferably, the plurality of contact electrodes are symmetrically distributed around the center of the tube body.

[0016] Preferably, the contact electrode is composed of electrode wire or conductive ink.

[0017] Preferably, the end opening of the tube body is an inclined surface.

[0018] After adopting the above technical solution, compared with the prior art, different contact electrodes can be adjusted through multiple channels respectively, so that the contact electrodes can fully contact the nerves, and the monitored nerve signals are continuous and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of an adjustable multi-channel nerve monitoring endotracheal cannula of the utility model;

[0020] Figure 2 It is a cross-sectional schematic diagram of the tube body of the endotracheal tube of the utility model;

[0021] Figure 3 It is a partial schematic diagram of the contact notch of the endotracheal tube of the utility model;

[0022] Figure 4It is a structural schematic diagram of the regulating knob of the endotracheal cannula of the utility model.

[0023] Figure markings: 1-tube body, 11-inner wall layer, 12-support layer, 13-outer sheath layer, 131-adjustment channel, 2-electrode connection, 21-signal connector, 3-contact electrode, 4-adjustment handle, 41-adjustment knob, 411-fixed base, 4111-first through hole, 412-swivel axis, 4121-positioning part, 4122-rotating part, 4123-second through hole, 5-fixed balloon, 6-fixed balloon filling tube, 61-fixed balloon filling interface. DETAILED DESCRIPTION

[0024] The advantages of the present invention are further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0026] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0027] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the 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".

[0028] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" 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 connection of 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.

[0030] 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 they themselves have no specific meaning. Therefore, "module" and "component" can be used interchangeably.

[0031] like Figure 1 to Figure 4 As shown, the utility model discloses an adjustable multi-channel nerve monitoring endotracheal cannula, which is characterized by comprising a tube body 1, a plurality of electrode connecting wires 2, a plurality of contact electrodes 3, and an adjustment handle 4;

[0032] 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 is hollow inside to form a cavity for the passage of respiratory air. The outer sheath layer 13 is coated outside the inner wall layer 11 to protect the inner wall layer 11.

[0033] The outer sheath 11 is partially raised along the axial direction of the tube body 1 to form a plurality of adjustment channels 131, and the plurality of electrode wires 2 are respectively inserted into the plurality of adjustment channels 131. The outer sheath 13 is provided with a contact notch near the end of the tube body 1, and the plurality of contact electrodes 3 are arranged in the contact notch, so that the plurality of contact electrodes 3 are exposed on the outer surface of the tube body 1;

[0034] The adjustment handle 4 is provided with a plurality of adjustment knobs 41, and the plurality of adjustment knobs 41 correspond one-to-one to the plurality of electrode connecting wires 2, and the plurality of electrode connecting wires 2 correspond one-to-one to the plurality of contact electrodes 3;

[0035] The first end of any electrode connection line 2 is connected to the contact electrode 3 corresponding to the electrode connection line 2, and the second end passes through the adjustment knob 41 corresponding to the electrode connection line 2, so that when any adjustment knob 41 is rotated, the electrode connection line 2 passing through the adjustment knob 41 is driven to move axially in the corresponding adjustment channel 131, so that the contact electrode 3 corresponding to the electrode connection line 2 is tilted to fully contact the nerve. After the contact electrode 3 is fully fitted with the inner side of the trachea, when the vocal cord muscle has myoelectric vibration, an electromyographic signal, i.e., a nerve signal, is generated, and the contact electrode 3 transmits the nerve signal through the electrode connection line 2.

[0036] like Figure 4 As shown, in an optional embodiment, any of the adjusting knobs 41 includes a fixed base 411 and a rotating shaft 412, the rotating shaft 412 includes a positioning portion 4121 and a rotating portion 4122 connected to each other, the positioning portion 4121 is embedded in the fixed base 411, and the rotating portion 4122 is exposed outside the fixed base 411, the fixed base 411 is provided with a first through hole 4111, the positioning portion 4121 is provided with a second through hole 4123, and the first through hole 4111 and the second through hole 4123 overlap in the vertical direction;

[0037] The second end of the electrode connection line 2 corresponding to any one of the adjusting knobs 41 passes through the first through hole 4111 and the second through hole 4123 of the adjusting knob 41 .

[0038] In an optional embodiment, if Figure 1 As shown, it also includes a fixed balloon 5 and a fixed balloon filling tube 6, wherein the fixed balloon 5 is arranged at the end of the tube body 1, and the fixed balloon filling tube 6 is attached to the outer surface of the outer sheath layer 13;

[0039] The outlet end of the fixed balloon filling tube 6 is connected to the fixed balloon 5, and the inlet end is provided with a fixed balloon filling interface 61 for connecting an external filling device. It can be understood that when the adjustable multi-channel neurological monitoring endotracheal tube of the utility model is used, the end of the tube body 1 is inserted into the human body cavity, and the filling medium is introduced from the fixed balloon filling interface 61, and the filling medium enters the fixed balloon 5 through the fixed balloon filling tube 6, so that the fixed balloon 5 is filled and expanded and stuck in the human body cavity, so that the tube body 1 remains fixed as a whole and does not move in the human body cavity.

[0040] In an optional embodiment, a signal connector 21 for connecting to a nerve monitor is provided on the second end of any of the electrode connections 2. The signal connector 21 can be further connected to an external nerve monitor to transmit the nerve signal monitored by the contact electrode 3 to the nerve monitor, so as to grasp the neurological function status of the patient during the operation in real time.

[0041] In an optional embodiment, a support layer 12 is further provided between the inner wall layer 11 and the outer sheath layer 13 , and the support layer 12 is a spring provided around the inner wall layer for enhancing the strength of the tube body 1 to prevent deformation.

[0042] In an optional implementation, the plurality of contact electrodes 3 are symmetrically distributed around the center of the tube body 1 .

[0043] In an optional implementation, the contact electrode 3 is composed of electrode wire or conductive ink.

[0044] In an optional embodiment, the end opening of the tube body 1 is an inclined surface, so that the tube body 1 can be inserted into the human body cavity more smoothly and conveniently.

[0045] 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. An adjustable multi-channel neurological monitoring endotracheal intubation, characterized in that: It includes a tube body, a plurality of electrode connecting wires, a plurality of contact electrodes, and an adjustment handle; The tube body is composed of an inner wall layer and an outer sheath layer from the inside to the outside, the inner wall layer is hollow, and the outer sheath layer is covered outside the inner wall layer; The outer sheath layer is partially raised along the axial direction of the tube body to form a plurality of adjustment channels, the plurality of electrode connection lines are respectively inserted into the plurality of adjustment channels, the outer sheath layer is provided with a contact notch near the end of the tube body, and the plurality of contact electrodes are arranged in the contact notch; The adjustment handle is provided with a plurality of adjustment knobs, the plurality of adjustment knobs correspond one-to-one to the plurality of electrode connecting wires, and the plurality of electrode connecting wires correspond one-to-one to the plurality of contact electrodes; The first end of any electrode connection line is connected to the contact electrode corresponding to the electrode connection line, and the second end passes through the adjustment knob corresponding to the electrode connection line, so that when any adjustment knob is rotated, the electrode connection line passing through the adjustment knob is driven to move axially in the corresponding adjustment channel, so that the contact electrode corresponding to the electrode connection line is tilted to fully contact the nerve.

2. The adjustable multi-channel neurological monitoring endotracheal cannula according to claim 1, characterized in that: Any of the adjusting knobs comprises a fixed base and a rotating shaft, the rotating shaft comprises a positioning portion and a rotating portion connected to each other, the positioning portion is embedded in the fixed base, the rotating portion is exposed outside the fixed base, the fixed base is provided with a first through hole, the positioning portion is provided with a second through hole, and the first through hole and the second through hole overlap in the vertical direction; The second end of the electrode connection line corresponding to any one of the adjusting knobs passes through the first through hole and the second through hole of the adjusting knob.

3. The adjustable multi-channel neurological monitoring endotracheal cannula according to claim 1, characterized in that: It also includes a fixed balloon and a fixed balloon filling tube, wherein the fixed balloon is arranged at the end of the tube body, and the fixed balloon filling tube is attached to the outer surface of the outer sheath layer; The outlet end of the fixed balloon filling tube is connected to the fixed balloon, and the inlet 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.

4. The adjustable multi-channel neurological monitoring endotracheal cannula according to claim 1, characterized in that: The second end of any of the electrode connecting wires is provided with a signal connector for connecting to a nerve monitor.

5. The adjustable multi-channel neurological monitoring endotracheal cannula according to claim 1, characterized in that: A support layer is further arranged between the inner wall layer and the outer sheath layer, and the support layer is a spring arranged around the inner wall layer.

6. The adjustable multi-channel neurological monitoring endotracheal cannula according to claim 1, characterized in that: The plurality of contact electrodes are symmetrically distributed around the center of the tube body.

7. The adjustable multi-channel neurological monitoring endotracheal cannula according to claim 1, characterized in that: The contact electrode is composed of electrode wire or conductive ink.

8. The adjustable multi-channel neurological monitoring endotracheal cannula according to claim 1, characterized in that: The end opening of the tube body is an inclined surface.

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