CN215690778U

CN215690778U - Neural monitoring trachea cannula

Info

Publication number: CN215690778U
Application number: CN202121170537.4U
Authority: CN
Inventors: 朱世杰
Original assignee: Beijing Shuke Gaoxin Technology Co ltd
Current assignee: Beijing Shuke Gaoxin Technology Co ltd
Priority date: 2021-03-15
Filing date: 2021-05-28
Publication date: 2022-02-01
Anticipated expiration: 2031-05-28

Abstract

The utility model discloses a nerve monitoring tracheal cannula which comprises a tube body, a monitoring lead with a connector, a pipeline with an inflation valve and an inflation sacculus, wherein the inflation sacculus is arranged on the tube body and is communicated with the pipeline, at least one electric conductor is arranged in the tube wall of the tube body, and the electric conductor can form a tracheal cannula structure which is stretched, compressed and bent without being damaged along with the tube body after being assembled, wherein one part of the electric conductor is exposed out of the tube body and is used as a monitoring electrode to collect EMG signals, and the electric conductor is connected with the monitoring lead and is used for transmitting the EMG signals for the monitoring lead. The utility model has the advantages of simple operation, good safety, difficult damage to the tissues of patients and the like.

Description

Neural monitoring trachea cannula

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a nerve monitoring trachea cannula.

Background

The nerve monitoring tracheal cannula is a product used in the operation of preventing and treating the unobstructed respiratory tract, can provide an unobstructed patient airway, is also used for being connected with a proper nerve monitor, and can be used as a tool for monitoring EMG signals of laryngeal muscles of a patient in the operation.

The trachea cannula is a key medical instrument in surgical operations such as thyroidectomy and the like, directly acts on the body of a patient, and plays a decisive role in the operation effect. Many kinds of trachea cannulas are developed around the world, but in clinical application, most of the trachea cannulas cannot monitor nerves in real time and continuously in the surgical resection process, monitoring and surgical operation cannot be performed simultaneously, time delay for discovering nerve functional damage often exists, nerve damage can be discovered in a continuous monitoring mode in time, special extra operation and instruments are needed, inaccurate displacement of a monitoring point is easily caused to cause misjudgment, and other corresponding adverse reactions are easily caused to excessive electrical stimulation of vocal cord nerves. Even if some designs neural monitoring trachea cannula, its electrode adopts stainless steel wire electrode, and is not good with neural contact nature.

The nerve monitoring tracheal cannula generally comprises a tube body, an inflation cuff, a cuff inflation tube, a contact electrode and an electrode connecting line. The body is of a main structure, the inflation cuff is arranged on the lower section of the body and can inflate the inflation cuff through the cuff inflation tube to enable the inflation cuff to be inflated to enable the inflation cuff to be expanded so as to achieve positioning of the intubation tube, the contact electrode is exposed on the lower section of the body, the electrode connecting line is used for connecting the contact electrode to the nerve monitor and forming an electrode loop, when the vocal cord muscle has myoelectric vibration, a myoelectric signal can be generated, at the moment, the contact electrode transmits the myoelectric signal to the myoelectric display screen through the interface box to be amplified, and then the myoelectric signal is recorded and an alarm is given.

However, the existing nerve monitoring tracheal cannula has the following defects: one tube body is obviously hardened, and patients feel uncomfortable obviously; the exposed steel wire is used for monitoring EMG signals, and the head end of the steel wire has the risk of puncturing the tracheal cannula and the saccule when the tracheal cannula is bent; three irregular tubes and their attachments risk abrading the patient's tissue.

How to solve the above problems and provide a new manufacturing method of a nerve monitoring tracheal cannula and a nerve monitoring tracheal cannula obtained by the manufacturing method become technical problems to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a nerve monitoring tracheal cannula which is simple and easy to operate, good in safety and not easy to damage tissues of a patient.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a nerve monitoring tracheal cannula which comprises a tube body, a monitoring lead with a connector, a pipeline with an inflation valve and an inflation sacculus, wherein the inflation sacculus is arranged on the tube body and is communicated with the pipeline, at least one electric conductor is arranged in the tube wall of the tube body, and the electric conductor can form a tracheal cannula structure which is stretched, compressed and bent without being damaged along with the tube body after being assembled, wherein one part of the electric conductor is exposed out of the tube body and is used as a monitoring electrode to collect EMG signals, and the electric conductor is connected with the monitoring lead and is used for transmitting the EMG signals for the monitoring lead.

Furthermore, an electrode wire connecting area, a first spacing area, an electrode area, a second spacing area and a distal area are sequentially arranged on the tube wall of the tube body along the length direction of the tube body, an inflation hole and electrode holes which are the same as the number of the electric conductors and used for locally burying the corresponding electric conductors are formed in the tube wall of the tube body along the length direction of the tube body, and two ends of the inflation hole and two ends of the electrode holes respectively extend to the electrode wire connecting area and the distal area along the length direction of the tube body.

Furthermore, a first notch is formed in the electrode hole at the electrode wire connecting area, a second notch is formed in the electrode hole at the electrode area, a third notch is formed in the electrode hole at the far end area, and the monitoring lead passes through the first notch and is connected with the near end of the conductor.

Further, the electric conductor is a spring, a fixing pin is sleeved on the inner side of the spring, the proximal end of the fixing pin is located in the electrode hole of the first interval area, the distal end of the fixing pin is located in the electrode hole of the far-end area, and the fixing pin is bonded with the electrode hole.

Further, the electric conductor comprises an electrode extension spring, the proximal end and the distal end of the electrode extension spring are respectively extended to form a proximal extension spring and a distal extension spring, the near end of the near end extension spring is a near end extension ball, the far end of the far end extension spring is a far end extension ball, wherein one part of the electrode extension spring is arranged in the second gap, the near-end extension ball and the far-end extension ball are respectively arranged in the first gap and the third gap, the near-end extension spring is connected with the monitoring lead, the near-end extension ball, the far-end extension ball and the electrode extension spring are all bonded with the tube body, the fixing pin is sleeved on the inner side of the electrode extension spring, the proximal end of the fixing pin extends into the electrode hole in the first interval region, and the distal end of the fixing pin extends into the electrode hole in the distal region through the electrode hole in the second interval region.

Further, the electric conductor includes the electrode spring, near-end spring, distal end spring have been welded respectively at electrode spring both ends, near-end spring near-end is the near-end ball, distal end spring distal end is the distal end ball, wherein, a part of electrode spring is installed in the second breach, near-end ball, distal end ball are installed respectively in first breach, third breach, the near-end spring is connected with the monitoring wire, near-end ball, distal end ball, electrode spring all bond with the body, the fixed pin cover is inboard in the electrode spring and this fixed pin near-end extends to being located first interval regional electrode hole and this fixed pin distal end extends to being located distal region's electrode hole through being located second interval regional electrode hole.

Furthermore, a first opening is formed in the electrode hole in the electrode area, a second opening is formed in the electrode hole in the electrode wire connecting area, the monitoring lead penetrates through the second opening to be connected with the near end of the electric conductor, and a part of the far end of the electric conductor is exposed out of the tube body through the first opening.

Furthermore, the electric conductor comprises a conductive spring and a conductive plastic body, the conductive spring is completely embedded in the electrode hole, the monitoring lead passes through the second opening and is connected with the near end of the conductive spring, the conductive plastic body is partially embedded in the electrode hole in the electrode area through the first opening and is in contact fit with the conductive spring, and one side of the conductive plastic body, far away from the conductive spring, is exposed out of the tube body and is used as a monitoring electrode for collecting EMG signals.

Furthermore, the end face of the conductive plastic body is in a T shape and comprises a convex rib and an edge which are integrally formed, wherein the convex rib is embedded into the electrode hole through the first opening and is in contact fit with the conductive spring, the edge is exposed outside the tube body, and one side of the edge, which is close to the convex rib, is fixedly connected with the outer wall of the tube body.

Further, the electric conductor comprises an EMG signal transmission film and an EMG signal transmission spring, the EMG signal transmission film is arranged on the outer wall of the tube body at the electrode area and used as a monitoring electrode to collect EMG signals, the EMG signal transmission spring is arranged in the electrode hole along the length direction of the tube body and used for transmitting EMG signals for the monitoring lead, the EMG signal transmission film is an electric conduction, extensible and bendable film, and the EMG signal transmission film is connected with the EMG signal transmission spring at the electrode area part.

Furthermore, gaps are formed in two ends of the electrode hole, at least one through hole is formed in the electrode hole and located in the electrode area, the EMG signal transmission film covers the through hole, and the EMG signal transmission film is connected with the EMG signal transmission spring through the through hole through solidified silver paste.

Further, the silver paste is poured into the electrode hole from the through hole when in a liquid state, one end of the solidified silver paste is fused with the EMG signal transmission spring, and the other end of the silver paste is bonded with the EMG signal transmission film through the through hole.

Further, the pipe body is provided with a fixing ring covering the joint of the pipeline and the monitoring lead at the position of the electrode wire connecting area in a sleeved mode, and the fixing ring is bonded with the pipe body.

Furthermore, a first pipeline notch is formed in the position, located at the electrode wire connecting area, of the inflation hole, a second pipeline notch is formed in the position, located at the distal end area, of the inflation hole, and the pipeline is communicated with the inflation balloon through the first pipeline notch, the inflation hole and the second pipeline notch in sequence.

Due to the adoption of the structure, the utility model has the following beneficial effects:

according to the nerve monitoring trachea cannula, at least one electric conductor is assembled on the trachea cannula body, and the electric conductor can form a trachea cannula structure which is not damaged by stretching, compressing and bending along with the trachea cannula body after being assembled, so that the trachea cannula body does not obviously harden like a traditional structure and a patient obviously feels uncomfortable.

The utility model will become more apparent from the following description when taken in conjunction with the accompanying drawings, which illustrate embodiments of the utility model.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is an enlarged partial view of portion A of the present invention;

FIG. 4 is a cross-sectional view taken along the direction a-a of the present invention;

FIG. 5 is an enlarged partial view of part B of the present invention;

FIG. 6 is a cross-sectional view taken along the line b-b of the present invention;

FIG. 7 is an enlarged partial schematic view of section E of the present invention;

FIG. 8 is an enlarged partial schematic view of section D of the present invention;

FIG. 9 is an enlarged partial schematic view of section F of the present invention;

FIG. 10 is an enlarged partial view of part G of the present invention;

FIG. 11 is an enlarged partial schematic view of section H of the present invention;

FIG. 12 is a schematic front view of a tube of the present invention;

FIG. 13 is a top view of the tube of the present invention;

FIG. 14 is a cross-sectional view taken in the direction c-c of the present invention;

FIG. 15 is a cross-sectional view taken in the direction d-d of the present invention;

FIG. 16 is a schematic cross-sectional view taken in the direction e-e of the present invention;

FIG. 17 is a cross-sectional view taken in the direction f-f of the present invention;

FIG. 18 is a front view of the spring of the present invention;

FIG. 19 is a front view of the spring as installed in the tube of the present invention;

FIG. 20 is a front schematic view of a retaining pin of the present invention;

FIG. 21 is an enlarged right-view illustration of the circular spring of the present invention;

FIG. 22 is an enlarged right-view illustration of the oval spring of the present invention;

FIG. 23 is a schematic cross-sectional view of a T-shaped spring of the present invention installed in an electrode hole located in an electrode area;

FIG. 24 is a second schematic front view of the spring of the present invention installed in the tube;

FIG. 25 is a schematic diagram showing the internal structure of a third embodiment of the present invention;

FIG. 26 is an enlarged partial view of section M of the present invention;

FIG. 27 is a cross-sectional view taken in the direction j-j of the present invention;

FIG. 28 is an enlarged partial schematic view of section N of the present invention;

FIG. 29 is a cross-sectional view taken in the direction of k-k of the present invention;

FIG. 30 is a partially enlarged schematic view of the O portion of the present invention;

FIG. 31 is an enlarged partial schematic view of portion P of the present invention;

FIG. 32 is an enlarged partial schematic view of portion Q of the present invention;

fig. 33 is a schematic front view of a tube according to a third embodiment of the present invention;

FIG. 34 is a sectional view taken in the direction l-l of the present invention;

FIG. 35 is a schematic front view of the conductive plastic of the present invention;

FIG. 36 is a schematic end view of a conductive plastic of the present invention;

FIG. 37 is a schematic view showing the internal structure of a fourth embodiment of the present invention;

FIG. 38 is an enlarged partial view of section C of the present invention;

FIG. 39 is a cross-sectional view taken in the direction of g-g of the present invention;

FIG. 40 is an enlarged partial schematic view of section I of the present invention;

FIG. 41 is a cross-sectional view taken in the direction h-h of the present invention;

FIG. 42 is an enlarged partial schematic view of portion J of the present invention;

FIG. 43 is an enlarged partial schematic view of the K portion of the present invention;

FIG. 44 is an enlarged partial schematic view of portion L of the present invention;

fig. 45 is a schematic front view of a tube according to a fourth embodiment of the present invention;

FIG. 46 is a cross-sectional view taken in the direction of i-i of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1 to 23, the nerve monitoring endotracheal tube provided by this embodiment includes a tube 05, a monitoring lead 01 with a connector, a pipeline 02 with an inflation valve, and an inflatable balloon 07, where the inflatable balloon 07 is mounted on the tube 05 and the inflatable balloon 07 is communicated with the pipeline 02, at least one electric conductor 06 is mounted in a wall of the tube 05 and the electric conductor 06 can form an endotracheal tube structure with the tube 05 that is stretched, compressed, and bent without being damaged, after being mounted, wherein a portion of the electric conductor 06 is exposed outside the tube 05 to be used as a monitoring electrode for collecting EMG signals, and the electric conductor 06 is connected to the monitoring lead 01 to transmit EMG signals to the monitoring lead 01. The part of the electric conductor 06 exposed out of the tube body 05 is used as a monitoring electrode to collect EMG signals and is sequentially transmitted to an external monitor to be displayed through the part of the electric conductor 06 buried in the tube wall of the tube body 05 and the monitoring lead 01.

In this embodiment, the air tube 05 is a tube body with a reinforced spring steel wire in an inner cavity, the number of the electric conductors 06 is 4, and since the 4 electric conductors 06 are similar in product structure, the positions on the tube wall of the tube body 05 are different, that is, the subsequent text description only describes the mechanism, function and assembly relation of 1 electric conductor 06, and the 1 electric conductor 06 represents other electric conductors 06; the electrical conductors 06 may be increased or decreased depending on the clinical need.

In this embodiment, an electrode wire connection region 106, a first spacing region 107, an electrode region 108, a second spacing region 109, and a distal end region 110 are sequentially disposed on a tube wall of the tube body 05 along a length direction of the tube body 05, an inflation hole 111, electrode holes 112 having the same number as the number of the electric conductors 06 and used for partially burying the corresponding electric conductors 06 are disposed in the tube wall of the tube body 05 along the length direction of the tube body 05, and two ends of the inflation hole 111 and the electrode holes 112 respectively extend to the electrode wire connection region 106 and the distal end region 110 along the length direction of the tube body 05.

In this embodiment, a first notch is formed at the electrode hole 112 located in the electrode wire connection region 106, a second notch is formed at the electrode hole 112 located in the electrode region 108, a third notch is formed at the electrode hole 112 located in the distal region 110, and the monitoring lead 01 passes through the first notch and is connected with the proximal end of the conductor 06.

In this embodiment, the conductive body 06 is a spring, and the spring can form a tracheal intubation structure which is not damaged by stretching, compressing and bending together with the tube body 05 after assembly by using the characteristics of the spring such as conductivity, stretchability, compressibility and flexibility; a fixing pin 102 is sleeved on the inner side of the spring, the proximal end of the fixing pin 102 is positioned in the electrode hole 112 of the first interval area 107, the distal end of the fixing pin 102 is positioned in the electrode hole 112 of the distal area 110, and the fixing pin 102 is bonded with the electrode hole 112.

In this embodiment, the conductive body 06 includes an electrode extension spring 0618, the proximal end and the distal end of the electrode extension spring 0618 are respectively extended to form a proximal extension spring 0603 and a distal extension spring 0604, the proximal end of the proximal tension spring 0603 is a proximal tension ball 0601, the distal end of the distal tension spring 0604 is a distal tension ball 0602, wherein a portion of the electrode extension spring 0618 is installed in the second notch, the proximal and

distal extension balls

0601 and 0602 are installed in the first and third notches, respectively, the proximal stretching spring 0603 is connected with the monitoring lead 01, the proximal stretching ball 0601, the distal stretching ball 0602 and the electrode stretching spring 0618 are all bonded with the tube body 05, the fixation pin 102 is nested inside the electrode tension spring 0618 and the fixation pin 102 extends proximally into the electrode hole 112 in the first spacer region 107 and the fixation pin 102 extends distally through the electrode hole 112 in the second spacer region 109 into the electrode hole 112 in the distal region 110. By stretching, the two ends of the electrode stretching spring 0618 form a proximal stretching spring 0603 and a distal stretching spring 0604, which have outer diameters smaller than the inner diameter of the electrode hole 112, after stretching, so that the proximal stretching spring 0603 can pass through the first separation area 107 to enter the electrode wire connection area 106, and the distal stretching spring 0604 can pass through the second separation area 109 to enter the distal area 110; the redundant near-end tension spring 0603 and the redundant far-end tension spring 0604 are respectively broken in a laser fusing mode to form a near-end tension ball 0601 and a far-end tension ball 0602, so that the breakpoints are rounded and smooth, and the breakpoints are prevented from piercing the tube body 05.

In this embodiment, the end surface of the conductor 06 is circular, elliptical or T-shaped. Specifically, the end surfaces of the proximal tension spring 0603, the distal tension spring 0604 and the electrode tension spring 0618 may be all circular, elliptical or T-shaped, or the end surfaces of the electrode tension spring 0618 may be T-shaped, and the end surfaces of the proximal tension spring 0603 and the distal tension spring 0604 may be all circular, elliptical or a combination of other end surfaces.

In this embodiment, body 05 is located electrode line connection area 106 department cover and is equipped with the solid fixed ring 04 of cladding pipeline 02 and monitoring wire 01 junction, gu fixed ring 04 bonds with body 05, the breach that is located electrode line connection area 106 department is located solid fixed ring 04 inboardly to hoop exposed pipeline 02 and monitoring wire 01, prevent that it from being dragged at will.

In this embodiment, a first pipeline notch is formed at a position, where the inflation hole 111 is located in the electrode wire connection area 106, of the inflation hole 111, a second pipeline notch is formed at a position, where the inflation hole 111 is located in the distal area 110, of the inflation hole 111, and the pipeline 02 sequentially passes through the first pipeline notch, the inflation hole 111, and the second pipeline notch to be communicated with the inflatable balloon 07, so that the pipeline 02 is embedded in the tube wall of the tube body 05, and comfort during intubation is improved.

When the device is used, the far end of the tube body 05 extends into a human body from the trachea, the outer wall of the tube body is in contact with the wall of the human body cavity, the spring is bent, stretched and compressed randomly along with the tube body 05 without falling off or breaking, a part of the electrode extension spring 0618 exposed out of the electrode hole 112 is in contact with the wall of the human body cavity and monitors EMG signals, and the monitored EMG signals are transmitted to an external monitor to be displayed through the electrode extension spring 0618, the near-end extension spring 0603 and the monitoring wire 01 in sequence, so that monitoring and surgical operation can be performed simultaneously, and the surgical risk is reduced.

Example two

Referring to fig. 24, the difference between the present embodiment and the first embodiment is: in this embodiment, the electric conductor 06 includes an electrode spring 0619, a proximal spring 0607 and a distal spring 0608, and the connection between the proximal spring 0607, the distal spring 0608 and the electrode spring 0619 is a welding manner, which is described in detail as follows:

in this embodiment, a proximal spring 0607 and a distal spring 0608 are welded to two ends of the electrode spring 0619, respectively, the proximal spring 0607 has a proximal ball 0605 at the proximal end, the distal spring 0608 has a distal ball 0606 at the distal end, wherein a portion of the electrode spring 0619 is installed in the second notch, the proximal ball 0605 and the distal ball 0606 are installed in the first notch and the third notch, respectively, the proximal spring 0607 is connected to the monitoring wire 01, the proximal ball 0605, the distal ball 0606 and the electrode spring 0619 are all bonded to the tube body 05, the fixing pin 102 is sleeved on the inner side of the electrode spring 0619, the proximal end of the fixing pin 102 extends into the electrode hole 112 located in the first spacing region 107, and the distal end of the fixing pin 102 extends into the electrode hole 112 located in the distal region 110 through the electrode hole 112 located in the second spacing region 109. The outer diameters of the proximal and distal springs 0607, 0608 are both smaller than the inner diameter of the electrode hole 112, such that the proximal spring 0607 can pass through the first separation region 107 into the electrode wire connection region 106, and the distal spring 0608 can pass through the second separation region 109 into the distal region 110; the redundant near-end spring 0607 and far-end spring 0608 are respectively broken in a laser fusing mode to form a near-end ball 0605 and a far-end ball 0606, so that the breakpoints are rounded and smooth, and the breakpoints are prevented from piercing the tube body 05.

EXAMPLE III

Referring to fig. 25 to fig. 36, the difference between the present embodiment and the first embodiment is: in this embodiment, the conductive body 06 includes a conductive spring 301 and a conductive plastic body 302, which are described as follows:

in this embodiment, a first opening 306 is formed in the electrode hole 112 at the electrode area 108, a second opening 307 is formed in the electrode hole 112 at the electrode wire connection area 106, and the monitoring lead 01 passes through the second opening 307 to be connected with the proximal end of the electric conductor 06 for transmitting EMG signals; a portion of the distal end of the conductive body 06 is exposed to the tube 05 through the first opening 306, and is used as a monitoring electrode for collecting EMG signals.

In this embodiment, the conductive body 06 includes a conductive spring 301 and a conductive plastic body 302, the conductive spring 301 is completely embedded in the electrode hole 112, the monitoring wire 01 passes through the second opening 307 and is connected to the proximal end of the conductive spring 301, the conductive plastic body 302 is partially embedded in the electrode hole 112 located in the electrode area 108 through the first opening 306 and is in contact fit with the conductive spring 301, and one side of the conductive plastic body 302 away from the conductive spring 301 is exposed outside the tube body 05 as a monitoring electrode for collecting EMG signals. The bottom of the conductive plastic body 302 abuts against the conductive spring 301, so that the distal end of the conductive spring 301 can be prevented from penetrating out of the tube wall of the tube body 05 through the first opening 306, and meanwhile, an electrical connection is formed, so that EMG signals can be transmitted.

In this embodiment, the end face of the conductive plastic body 302 is T-shaped, and includes a rib 308 and an edge 309 that are integrally formed, wherein the rib 308 is embedded into the electrode hole 112 through the first opening 306 and is in contact fit with the conductive spring 301, the edge 309 is exposed outside the tube body 05, and one side of the edge 309 close to the rib 308 is fixedly connected to the outer wall of the tube body 05, and can be fixed by bonding or welding, and in addition, two ends of the rib 308 are bonded to the conductive spring 301 and the electrode hole 112 through glue.

Example four

Referring to fig. 37 to fig. 46, the difference between the first embodiment and the second embodiment is: in this embodiment, the electric conductor 06 includes an EMG signal transmission film 201 and an EMG signal transmission spring 202, which are described as follows:

in this embodiment, the electric conductor 06 includes an EMG signal transmission film 201, an EMG signal transmission spring 202, the EMG signal transmission film 201 is disposed on the outer wall of the tube 05 at the electrode region 108 to collect EMG signals as monitoring electrodes, the EMG signal transmission spring 202 is disposed in the electrode hole 112 along the length direction of the tube 05 to transmit EMG signals for the monitoring wires 01, the EMG signal transmission film 201 is an electric-conductive, extendable, and bendable film, and the EMG signal transmission film 201 and the EMG signal transmission spring 202 are connected at the electrode region 108, so as to form an endotracheal intubation structure capable of being arbitrarily bent, extended, and compressed along with the tube 05 without being damaged.

In this embodiment, gaps are formed at two ends of the electrode hole 112, at least one through hole 205 is formed at the electrode area 108 of the electrode hole 112, the EMG signal transmission film 201 covers the through hole 205, and the EMG signal transmission film 201 is connected with the EMG signal transmission spring 202 through the through hole 205 by a solidified silver paste 203.

In this embodiment, the silver paste 203 is poured into the electrode hole 112 from the through hole 205 when in a liquid state, one end of the silver paste 203 is fused with the EMG signal transmission spring 202 after being solidified, and the other end of the silver paste 203 is bonded with the EMG signal transmission film 201 through the through hole 205. The silver paste 203 can also be replaced by graphene ink, carbon fiber ink, conductive glue and other materials which have conductivity and viscosity and can be solidified.

The above description is of the preferred embodiment of the utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments to equivalent variations, without departing from the spirit of the utility model, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.

Claims

1. A nerve monitoring trachea cannula comprises a tube body (05), a monitoring lead (01) with a connector, a pipeline (02) with an inflation valve and an inflation balloon (07), wherein the inflation balloon (07) is installed on the tube body (05), and the inflation balloon (07) is communicated with the pipeline (02); the method is characterized in that: at least one electric conductor (06) is assembled in the tube wall of the tube body (05) and the electric conductor (06) can form an endotracheal intubation structure which is stretched, compressed and bent without being damaged with the tube body (05) after assembly, wherein one part of the electric conductor (06) is exposed out of the tube body (05) and is used as a monitoring electrode for collecting EMG signals, and the electric conductor (06) is connected with the monitoring lead (01) and is used for transmitting the EMG signals for the monitoring lead (01).

2. A nerve-monitoring endotracheal tube according to claim 1, characterized in that: the tube wall of the tube body (05) is sequentially provided with an electrode wire connecting area (106), a first spacing area (107), an electrode area (108), a second spacing area (109) and a distal area (110) along the length direction of the tube body (05), the tube wall of the tube body (05) is provided with gas filling holes (111) and electrode holes (112) which are the same as the electric conductors (06) in number and are used for locally burying the corresponding electric conductors (06), and two ends of the gas filling holes (111) and two ends of the electrode holes (112) respectively extend to the electrode wire connecting area (106) and the distal area (110) along the length direction of the tube body (05).

3. A nerve-monitoring endotracheal tube according to claim 2, characterized in that: a first notch is formed in the electrode hole (112) in the electrode wire connecting area (106), a second notch is formed in the electrode hole (112) in the electrode area (108), a third notch is formed in the electrode hole (112) in the far end area (110), and the monitoring lead (01) penetrates through the first notch to be connected with the near end of the conductor (06).

4. A nerve-monitoring endotracheal tube according to claim 3, characterized in that: the electric conductor (06) is a spring, a fixing pin (102) is sleeved on the inner side of the spring, the near end of the fixing pin (102) is located in an electrode hole (112) of the first interval area (107), the far end of the fixing pin (102) is located in an electrode hole (112) of the far end area (110), and the fixing pin (102) is bonded with the electrode hole (112).

5. A nerve-monitoring endotracheal tube according to claim 4, characterized in that: the electric conductor (06) comprises an electrode stretching spring (0618), the proximal end and the distal end of the electrode stretching spring (0618) are stretched to form a proximal stretching spring (0603) and a distal stretching spring (0604), the proximal end of the proximal stretching spring (0603) is a proximal stretching ball (0601), the distal end of the distal stretching spring (0604) is a distal stretching ball (0602), a part of the electrode stretching spring (0618) is installed in the second notch, the proximal stretching ball (0601) and the distal stretching ball (0602) are installed in the first notch and the third notch respectively, the proximal stretching spring (0603) is connected with the monitoring wire (01), the proximal stretching ball (0601), the distal stretching ball (0602) and the electrode stretching spring (0618) are bonded with the tube body (05), the fixing pin (102) is sleeved on the inner side of the electrode stretching spring (0618), the proximal end of the fixing pin (102) extends to the fixing hole (112) located in the first electrode spacing region (107), and the fixing pin (102) is located in the fixing hole The distal end of the pin (102) extends through the electrode aperture (112) at the second spaced region (109) into the electrode aperture (112) at the distal region (110).

6. A nerve-monitoring endotracheal tube according to claim 4, characterized in that: the electric conductor (06) comprises an electrode spring (0619), a near-end spring (0607) and a far-end spring (0608) are welded at two ends of the electrode spring (0619) respectively, the near-end spring (0607) and the far-end spring (0608) are respectively a near-end ball (0605) and a far-end ball (0606), wherein one part of the electrode spring (0619) is installed in the second notch, the near-end ball (0605) and the far-end ball (0606) are respectively installed in the first notch and the third notch, the near-end spring (0607) is connected with a monitoring lead (01), the near-end ball (0605), the far-end ball (0606) and the electrode spring (0619) are all bonded with the pipe body (05), the fixing pin (102) is sleeved on the inner side of the electrode spring (0619), the near-end of the fixing pin (102) extends into a hole (112) located in the first interval area (107), and the far end of the fixing pin (102) extends to a far-end area (110) located in the second interval area (109) through the hole (112) of the electrode hole (110) ) Is disposed in the electrode hole (112).

7. A nerve-monitoring endotracheal tube according to claim 2, characterized in that: the electrode hole (112) is provided with a first opening (306) in an electrode area (108), the electrode hole (112) is provided with a second opening (307) in an electrode wire connecting area (106), the monitoring lead (01) penetrates through the second opening (307) to be connected with the near end of the conductor (06), and one part of the far end of the conductor (06) is exposed out of the tube body (05) through the first opening (306).

8. A nerve-monitoring endotracheal tube according to claim 7, characterized in that: the electric conductor (06) comprises an electric conduction spring (301) and an electric conduction plastic body (302), the electric conduction spring (301) is completely embedded into the electrode hole (112), the monitoring lead (01) penetrates through the second opening (307) to be connected with the near end of the electric conduction spring (301), the electric conduction plastic body (302) is partially embedded into the electrode hole (112) in the electrode area (108) through the first opening (306) to be in contact fit with the electric conduction spring (301), and one side, far away from the electric conduction spring (301), of the electric conduction plastic body (302) is exposed out of the tube body (05) to be used as a monitoring electrode to collect EMG signals.

9. A nerve-monitoring endotracheal tube according to claim 8, characterized in that: the end face of the conductive plastic body (302) is T-shaped and comprises a convex rib (308) and an edge (309) which are integrally formed, wherein the convex rib (308) is embedded into the electrode hole (112) through a first opening (306) and is in contact fit with the conductive spring (301), the edge (309) is exposed out of the tube body (05), and one side of the edge (309) close to the convex rib (308) is fixedly connected with the outer wall of the tube body (05).

10. A nerve-monitoring endotracheal tube according to claim 2, characterized in that: the electric conductor (06) comprises an EMG signal transmission film (201) and an EMG signal transmission spring (202), the EMG signal transmission film (201) is arranged on the outer wall of the tube body (05) at the electrode area (108) and is used as a monitoring electrode for collecting EMG signals, the EMG signal transmission spring (202) is arranged in the electrode hole (112) along the length direction of the tube body (05) and is used for transmitting EMG signals for the monitoring lead (01), the EMG signal transmission film (201) is an electric conduction, extensible and bendable film, and the EMG signal transmission film (201) and the EMG signal transmission spring (202) are partially connected at the electrode area (108).

11. The neuromonitoring endotracheal tube of claim 10 wherein: gaps are formed in two ends of each electrode hole (112), at least one through hole (205) is formed in the electrode hole (112) at the position where the electrode hole is located in the electrode area (108), the EMG signal transmission film (201) covers the through hole (205), and the EMG signal transmission film (201) is connected with an EMG signal transmission spring (202) through a solidified silver paste (203) through the through hole (205).

12. The neuromonitoring endotracheal tube of claim 11 wherein: and when the silver paste (203) is in a liquid state, the silver paste is poured into the electrode hole (112) from the through hole (205), one end of the silver paste (203) is fused with the EMG signal transmission spring (202) after solidification, and the other end of the silver paste (203) is bonded with the EMG signal transmission film (201) through the through hole (205).

13. A nerve monitoring endotracheal tube according to any one of claims 2 to 12, characterized in that: body (05) are located electrode line connection area (106) and are located the cover and are equipped with fixed ring (04) of cladding pipeline (02) and monitoring wire (01) junction, fixed ring (04) and body (05) bond.

14. A nerve monitoring endotracheal tube according to any one of claims 2 to 12, characterized in that: a first pipeline notch is formed in the position, located in the electrode wire connecting area (106), of the inflation hole (111), a second pipeline notch is formed in the position, located in the distal area (110), of the inflation hole (111), and the pipeline (02) is communicated with the inflatable balloon (07) through the first pipeline notch, the inflation hole (111) and the second pipeline notch in sequence.