CN212593396U - Nerve monitoring tracheal cannula and contact line thereof - Google Patents

Abstract

The utility model provides a nerve monitoring trachea cannula and a contact line thereof, which relate to the field of medical instruments and solve the problems that the contact line used on the trachea cannula is difficult to effectively contact vocal cords and the collected electromyographic signals are unstable; the contact circuit comprises a film layer arranged on the peripheral wall of the trachea cannula, a contact electrode, a connecting wire and a connecting end are arranged on the film layer, at least the contact electrode is in a curve shape, and the contact electrode is arranged at least around one circle of the trachea cannula; the connecting end is connected with the contact electrode through a connecting line and is used for connecting monitoring equipment and transmitting the electromyographic signals collected by the contact electrode to the monitoring equipment; the nerve monitoring tracheal cannula comprises the contact line; the utility model discloses contact electrode sets up to the curve form, and under the same length, contact electrode can more effectually contact the human body and gather the flesh electrical signal, improves the accuracy that the trachea cannula placed in the operation, and flesh electrical signal transmits more stably, reduces operating time in the operation.

Description

Nerve monitoring tracheal cannula and contact line thereof

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to a nerve monitoring trachea cannula and contact line thereof.

Background

A neuromonitoring endotracheal tube is a device used in procedures to prevent and treat unobstructed airways, providing an unobstructed patient airway. The nerve monitoring trachea cannula is mainly applied to thyroid surgery, the nerve monitoring trachea cannula is inserted from a human trachea and is matched with a nerve monitor for use, and myoelectric signals near vocal cords can be monitored, so that a doctor can identify the position of nerves in the surgery process, and the recurrent laryngeal nerves are prevented from being injured in the surgery process.

In the conventional nerve monitoring trachea cannula, a contact electrode is usually arranged on the peripheral wall of the trachea cannula and forms an electrode loop with a nerve monitor through an electrode connecting wire, when myoelectricity tremor occurs to vocal cord muscles, myoelectricity signals can be generated, and at the moment, the myoelectricity signals are transmitted to a monitoring display screen by the contact electrode to be amplified, and then the myoelectricity signals are recorded and alarm is given.

The applicant has found that the prior art has at least the following technical problems: the existing contact electrode part for contacting the vocal cords to collect the electromyographic signals is small, and the vocal cords cannot be quickly and effectively contacted and the electromyographic signals cannot be collected. After the trachea cannula is inserted into the trachea of a human body, the myoelectric signals can be effectively monitored only by continuously adjusting the position of the trachea cannula when the trachea cannula monitors the myoelectric signals, the position adjusting time is long, and the trachea cannula is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a nerve monitoring tracheal cannula and a contact line thereof, so as to solve the technical problems that the contact line used on the tracheal cannula in the prior art is difficult to effectively contact vocal cords and the collected myoelectric signals are unstable; the utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a contact circuit, including setting up the rete on the trachea cannula perisporium, there are contact electrode, connecting wire and connection end on the rete, wherein:

at least the contact electrode is in a curve shape and is arranged at least around one circle of the tracheal cannula;

the connection end is connected with the contact electrode through the connection line and is used for connecting monitoring equipment and transmitting the electromyographic signals collected by the contact electrode to the monitoring equipment.

Preferably, the contact electrode is wavy.

Preferably, the contact line is a printed line or a conductive carbon film.

Preferably, an insulating glue layer covers the outside of the connecting wire.

Preferably, the bottom of the film layer is provided with an adhesive layer so that the contact line is attached to the peripheral wall of the endotracheal tube.

Preferably, the length of the connecting line is matched with the length of the tracheal cannula, and the connecting line extends along the axial direction of the tracheal cannula.

Preferably, the length of the contact line is 272.35 ± 5 mm.

Preferably, the length of the contact line is 262.21 ± 5 mm.

The utility model also provides a nerve monitoring trachea cannula, including trachea cannula and above-mentioned contact circuit, the rete set up in on trachea cannula's the perisporium.

Preferably, the trachea cannula is connected with an inflation end through an air inlet pipe.

Compared with the prior art, the utility model, following beneficial effect has:

1. the utility model provides a contact circuit sets up contact electrode, connecting wire and connection end on the rete to set up every contact electrode into the curve form, make under the same length, contact electrode can more effectually contact the human body and gather flesh electrical signal, so that with signal transmission to monitoring facilities, improve the accuracy that nerve guardianship trachea cannula placed in the operation, make flesh electrical signal transmission more stable, operating time in the reduction operation.

2. The utility model provides a nerve monitoring trachea cannula, owing to possess above-mentioned contact line, the event has the advantage that can make myoelectric signal transmission more stable equally, operating time in the reduction operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a contact circuit according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of another embodiment of a contact line;

fig. 3 is a schematic structural view of the nerve-monitoring endotracheal intubation of the present invention.

In figure 1, film layers; 11. a contact electrode; 12. a connecting wire; 13. connecting the end heads; 2. tracheal intubation; 3. an inflation end; 4. an air inlet pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1, 2 and 3, fig. 1 is a schematic structural diagram of an embodiment of a contact circuit according to the present invention; FIG. 2 is a schematic diagram of another embodiment of a contact line; fig. 3 is a schematic structural view of the nerve-monitoring endotracheal intubation of the present invention.

The embodiment provides a contact circuit, which comprises a film layer 1 arranged on the peripheral wall of a tracheal cannula 2, specifically, the film layer should be made of an insulating material; and a contact electrode 11, a connection line 12 and a connection terminal 13 are present on the membrane layer 1, wherein:

at least the contact electrode 11 is in a curve shape, and the contact electrode 11 is at least arranged around one circle of the tracheal cannula 2; the contact electrode 11 is exposed on the membrane layer and is used for contacting with the vocal cords to collect electromyographic signals. In use, the portion of the membrane layer where the contact electrode 11 is located at least surrounds one circle of the endotracheal tube 2 so as to contact the vocal cords from the periphery of the endotracheal tube 2;

the connection terminal 13 is connected with the contact electrode 11 through a connection line 12, and the connection terminal 13 is used for connecting a monitoring device and transmitting the electromyographic signals collected by the contact electrode 11 to the monitoring device.

The monitoring equipment is the existing mature technology, and the model of the monitoring equipment is not particularly limited.

Above-mentioned contact electrode 11, connecting wire 12, connection end 13 and monitoring facilities form the electrode return circuit, and contact electrode 11 gathers the flesh electrical signal with the vocal cord contact and passes through connection end 13 transmission signal to monitoring facilities, in the thyroid gland operation to the doctor discerns the position of nerve at the operation in-process, avoids hindering the recurrent laryngeal nerve at the operation in-process.

The contact electrode 11 is set to be in a curve shape, so that the contact electrode 11 can more effectively contact with a human body and collect myoelectric signals under the same length, the signals are conveniently transmitted to the monitoring equipment, the accuracy of placing the nerve monitoring trachea cannula 2 in the operation is improved, the myoelectric signals are more stably transmitted, and the operation time in the operation is shortened.

As an alternative embodiment, referring to fig. 1 and 2, the contact electrode 11 is wavy. Alternatively, the contact electrode 11 may have a saw-tooth shape or other irregular curved shape to increase the contact between the contact electrode and the vocal cords with the same length.

The film layer 1 is provided to facilitate the entire contact line to be attached to the peripheral wall of the endotracheal tube 2 through the film layer 1, and as an alternative embodiment, the contact line is a printed line or a conductive carbon film.

The contact lines can be patterned on the film 1 to form contact electrodes 11 that fully conform to the shape and dimensions described above.

The contact circuit may also be a more flexible conductive carbon film, which not only maintains the output of the electromyographic signals, but also reduces the risk of abrading the patient's tissue by virtue of the flexible nature.

As an alternative embodiment, the outside of the connection line 12 is covered with an insulating glue layer. In other words, the periphery of the connection line is covered with an insulating material instead of being exposed on the film layer, the insulating material may be an insulating glue, and the connection line 12 is wrapped in the insulating glue layer and can shield the external electromagnetic interference signal.

In order to facilitate the arrangement of the film 1 on the peripheral wall of the endotracheal tube 2, as an alternative embodiment, the bottom of the film 1 of the present embodiment is provided with an adhesive layer (not shown) to attach the contact wires to the peripheral wall of the endotracheal tube 2.

In use, the entire contact wire may be attached to the peripheral wall of the endotracheal tube 2 by an adhesive layer.

As an alternative embodiment, the present embodiment suitably increases the length of the contact line.

In order to facilitate the transmission of electromyographic signals in a predetermined direction, referring to fig. 1 and 2, the length of the connection line 12 is adapted to the length of the endotracheal tube 2, and the connection line 12 extends along the axial direction of the endotracheal tube 2.

As an alternative embodiment, to accommodate different sizes of endotracheal tubes 2, this embodiment provides two types of contact wires, as shown in fig. 1 and 2, the first type of contact wire in fig. 1 being 272.35 ± 5mm in length. The film layer portion where the contact electrode 11 is located extends for a length of 70.09mm, and the entire contact wiring has a coverage width of 85.01 mm.

The second type of contact wires in fig. 2 has a length of 262.21 ± 5 mm. The part of the film layer 1 where the contact electrode 11 is located extends 56.06mm in length and 36.00mm in width, and the coverage width of the whole contact line is 71.82 mm. Of course, in addition to the above two types of contact lines, the skilled person can set the contact lines according to the actual conditions of the endotracheal tube, and the contact lines are not limited in detail.

Example 2

Referring to fig. 3, the present embodiment provides a nerve-monitoring endotracheal tube 2, which includes the endotracheal tube 2 and the above contact circuit, and the membrane layer 1 is disposed on the peripheral wall of the endotracheal tube 2.

The neural guardianship trachea cannula of this embodiment, with the whole rete 1 of contact circuit attached on trachea cannula 2's perisporium, wherein, contact electrode 11 sets up around trachea cannula 2's round at least, and every contact electrode 11 sets up to the curve form, make under the same length, increase contact electrode 11's area of contact, contact electrode 11 can more effective contact the human body and gather the flesh electrical signal, so that with signal transmission to monitoring facilities, improve the accuracy that neural guardianship trachea cannula placed in the operation, make flesh electrical signal transmission more stable, operating time in the reduction operation.

In order to inflate the endotracheal tube, referring to fig. 3, the endotracheal tube 2 is connected to an inflation end 3 through an air inlet tube 4, and the inflation end 3 can be used to inflate the endotracheal tube 2.

The particular features, structures, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a contact circuit, its characterized in that, is including setting up the rete on the trachea cannula perisporium, there are contact electrode, connecting wire and connection end on the rete, wherein:

at least the contact electrode is in a curve shape and is arranged at least around one circle of the tracheal cannula;

the connection end is connected with the contact electrode through the connection line and is used for connecting monitoring equipment and transmitting the electromyographic signals collected by the contact electrode to the monitoring equipment.

2. The contact circuit of claim 1, wherein said contact electrode is corrugated.

3. The contact line according to claim 1 or 2, characterized in that the contact line is a printed line or a conductive carbon film.

4. The contact wire of claim 1, wherein the connection wire is coated with an insulating glue layer on the outside.

5. The contact wire of claim 1 or 2, wherein the bottom of the film layer is provided with an adhesive layer to affix the contact wire to the peripheral wall of the endotracheal tube.

6. A contact line according to claim 1 or 2, wherein the length of the connection line is adapted to the length of an endotracheal tube and the connection line extends in the axial direction of the endotracheal tube.

7. The contact circuit of claim 1, wherein the contact circuit has a length of 272.35 ± 5 mm.

8. The contact circuit of claim 1, wherein the contact circuit has a length of 262.21 ± 5 mm.

9. A neuromonitoring endotracheal tube comprising an endotracheal tube and a contact wire according to any of claims 1-8, said membrane being disposed on a peripheral wall of said endotracheal tube.

10. The neuromonitoring endotracheal tube of claim 9 wherein the endotracheal tube has an inflation end connected thereto by an air inlet tube.

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