CN113304369B

CN113304369B - Nerve monitoring tracheal cannula and manufacturing method thereof

Info

Publication number: CN113304369B
Application number: CN202110589917.XA
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: 2024-01-16
Anticipated expiration: 2041-05-28
Also published as: CN113304369A; WO2022194012A1

Abstract

The invention discloses a nerve monitoring tracheal cannula and a manufacturing method thereof. In one aspect, the invention provides a nerve monitoring tracheal cannula, at least one conductor is assembled on the wall of a tracheal cannula body, and the conductor can form a stretching, compressing and bending structure without being damaged along with the tracheal cannula body after being assembled, wherein a part of the conductor is exposed out of the tracheal cannula body to be used as a monitoring electrode for collecting EMG signals, and a conductor connecting monitoring lead is used for transmitting the EMG signals to the monitoring lead. On the other hand, the invention also provides a manufacturing method of the nerve monitoring tracheal cannula. The nerve monitoring trachea cannula has the advantages of simplicity in operation, good safety, difficulty in damaging tissues of a patient and the like, and the nerve monitoring trachea cannula is convenient to manufacture.

Description

Nerve monitoring tracheal cannula and manufacturing method thereof

Technical Field

The invention relates to the technical field of medical instruments, in particular to a nerve monitoring tracheal cannula and a manufacturing method thereof.

Background

The nerve monitoring tracheal cannula is a product used in the operation of preventing and treating the unobstructed respiratory tract, can provide the unobstructed ventilation airway of a patient, is also used for being connected with a proper nerve monitor, and can be used as a tool for monitoring the EMG signal of the laryngeal muscles of the patient in 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 has decisive effect on the operation effect. Many tracheal intubation is developed around the world, but in clinical application, most of the tracheal intubation can not monitor nerves in real time and continuously in the surgical excision process, monitoring and surgical operation can not be performed simultaneously, nerve function damage time delay is found, nerve damage can be found in time in a continuous monitoring mode, special additional operation and instruments are needed, misjudgment is easily caused due to inaccurate displacement of monitoring points, and other corresponding adverse reactions are easy to occur due to excessive electrical stimulation on vocal cords. Even if a nerve monitoring tracheal cannula is designed by someone, the electrode of the tracheal cannula adopts a stainless steel wire electrode, and the contact with the nerve is poor.

The nerve monitoring trachea cannula consists of a tube body, an inflatable cuff, a pipeline, a contact electrode and a monitoring lead. The tube body is of a main structure, the inflatable cuff is arranged at the lower section of the tube body and can be inflated through a pipeline to enable the inflatable cuff to be inflated so as to achieve positioning of the cannula, the contact electrode is exposed at the lower section of the tube body, the monitoring lead is used for connecting the contact electrode to the nerve monitor and forming an electrode loop, when the vocal cords are provided with myoelectricity to vibrate, the myoelectricity is generated, and at the moment, the contact electrode transmits the myoelectricity to the myoelectricity display screen through the interface box to amplify, and then the myoelectricity is recorded and an alarm is given.

However, the existing nerve monitoring tracheal intubation has the following disadvantages: one of the tube bodies is obviously hardened, and the patient obviously feels uncomfortable; the exposed steel wire is used as an EMG signal for monitoring, and the head end of the steel wire is at risk of puncturing the trachea cannula and the saccule when the trachea cannula is bent; three irregular tubes and their appendages risk scratching the patient's tissue.

How to solve the problems is to provide a new manufacturing method of the nerve monitoring trachea cannula and the nerve monitoring trachea cannula obtained by the manufacturing method, which are technical problems to be solved urgently.

Disclosure of Invention

The first aim of the invention is to provide a nerve monitoring trachea cannula which is simple to operate, good in safety and not easy to damage tissues of a patient.

The second aim of the invention is to provide a manufacturing method of the nerve monitoring tracheal cannula, which is convenient to manufacture.

In order to achieve the above purpose, the invention adopts the following technical scheme:

in one aspect, the invention provides a nerve monitoring tracheal cannula, at least one conductor is assembled on the wall of a tracheal cannula body, and the conductor can form a stretching, compressing and bending structure without being damaged along with the tracheal cannula body after being assembled, wherein a part of the conductor is exposed out of the tracheal cannula body to be used as a monitoring electrode for collecting EMG signals, and a conductor connecting monitoring lead is used for transmitting the EMG signals to the monitoring lead.

Further, an electrode wire connection region, a first interval region, an electrode region, a second interval region and a distal region are sequentially arranged on the tube wall of the tube body along the length direction of the tube body, electrode holes which are the same in number as the conductors and used for locally burying the corresponding conductors are formed in the tube wall of the tube body along the length direction of the tube body, and two ends of each electrode hole extend to the electrode wire connection region and the distal region respectively along the length direction of the tube body.

Further, 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 distal end area, and a monitoring wire penetrates through the first notch and is connected with the proximal 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 positioned in the electrode hole of the first interval region, the distal end of the fixing pin is positioned in the electrode hole of the distal end region, and the fixing pin is bonded with the electrode hole.

Further, the electric conductor includes electrode extension spring, electrode extension spring near-end, distal end are stretched respectively and are formed near-end extension spring, distal end extension spring, near-end extension spring, distal end extension spring keep away from electrode extension spring one end and are the extension end ball, wherein, electrode extension spring's part is installed in the second breach, two extension end ball is installed respectively in first breach, third breach, near-end extension spring is connected with the monitoring wire, two extension end ball, electrode extension spring all bond with the body, the fixed pin cover is in electrode extension spring inboard and this fixed pin proximal end extends to the electrode hole that is located first interval region and this fixed pin distal end extends to the electrode hole that is located the distal end region through the electrode hole that is located the interval region.

Further, the outer diameters of the proximal extension spring and the distal extension spring are smaller than the inner diameter of the electrode hole, and the screw pitches of the proximal extension spring and the distal extension spring are larger than the screw pitches of the electrode extension spring.

Further, the electric conductor includes electrode spring, electrode spring both ends have welded proximal end spring, distal end spring respectively, proximal end spring, distal end spring keep away from electrode spring one end and are the end ball, wherein, electrode spring's part is installed in the second breach, two the end ball is installed respectively in first breach, third breach, proximal end spring is connected with the monitoring wire, two end ball, electrode spring all bond with the body, the fixed pin cover is in electrode spring inboard and this fixed pin proximal end extends to the electrode hole that is located first interval region and this fixed pin distal end extends to the electrode hole that is located the distal end region through the electrode hole that is located the second interval region.

Further, the outer diameters of the proximal spring and the distal spring are smaller than the inner diameter of the electrode hole.

Further, a first opening is formed in the electrode hole, a second opening is formed in the electrode wire connecting area in the electrode hole, a monitoring wire penetrates through the second opening to be connected with the proximal end of the conductor, and a part of the distal end of the conductor is exposed out of the tube body through the first opening.

Further, the electric conductor comprises a conductive spring and a conductive plastic body, the conductive spring is completely buried in the electrode hole, the monitoring wire penetrates through the second opening to be connected with the proximal end of the conductive spring, the conductive plastic body is locally buried in the electrode hole located in the electrode area through the first opening to be in contact fit with the conductive spring, and one side, far away from the conductive spring, of the conductive plastic body is exposed out of the tube body to be used as a monitoring electrode to collect an EMG signal.

Further, a first colloid which is formed by solidifying glue and can block the electrode hole is arranged at one end, close to the electrode area, of the electrode hole in the first interval area, a second colloid which is formed by solidifying glue and can block the electrode hole is arranged at one end, close to the electrode area, of the electrode hole in the second interval area, and the first colloid and the second colloid are respectively bonded with two ends of the conductive plastic body, and the first colloid and the second colloid are both bonded with the pipe body.

Further, the end face of the conductive plastic body is shaped like a T and comprises an integrally formed convex rib and an edge, wherein the convex rib is embedded into an electrode hole through a first opening to be in contact fit with a conductive spring, two ends of the convex rib are respectively bonded with a first colloid and a second colloid, and the edge is exposed out of the tube body and is fixedly connected with the outer wall of the tube body close to one side of the convex rib.

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 pipe body, which is positioned 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 pipe body and used for transmitting EMG signals to the monitoring wire, the EMG signal transmission film is a conductive, extensible and bendable film, and the EMG signal transmission film is connected with the EMG signal transmission spring to form an tracheal intubation structure which can be bent, stretched and compressed along with the pipe body at will without being damaged.

Further, notches are formed at two ends of the electrode hole, at least one through hole is formed at the electrode hole, the EMG signal transmission film covers the through hole, and the EMG signal transmission film is connected with the EMG signal transmission spring through a solidified silver paste through the through hole.

Further, a fixing ring which covers the connection part of the pipeline and the monitoring lead is sleeved at the connection part of the electrode wire of the pipe body, and the fixing ring is adhered to the pipe body.

On the other hand, the invention also provides a manufacturing method of the nerve monitoring trachea cannula, at least one conductor is assembled in the wall of the trachea cannula tube body, the conductor can form a trachea cannula structure which is stretched, compressed and bent along with the tube body without being damaged after being assembled, wherein a part of the conductor is exposed out of the tube body to be used as a monitoring electrode for collecting EMG signals, and the conductor is connected with a monitoring wire for transmitting the EMG signals to the monitoring wire.

Further, the electric conductor is a spring, the end face of the spring is circular or elliptical or T-shaped, and the assembly process of the spring in the pipe wall of the pipe body is as follows:

electrode holes with the same number as the springs are formed in the tube wall of the tube body along the length direction of the tube body and used for locally burying the corresponding springs, an electrode wire connecting area, a first interval area, an electrode area, a second interval area and a distal end area are sequentially formed in the tube wall of the tube body along the length direction of the electrode holes, the outer side wall of the electrode hole at the electrode wire connecting area is removed to form a first notch, the outer side wall of the electrode hole at the electrode area is removed to form a second notch, and the outer side wall of the electrode hole at the distal end area is removed to form a third notch;

the spring is installed in the electrode hole through the second notch, two ends of the spring are respectively stretched to the electrode wire connecting area and the distal end area and fixed, a part of the spring located at the position of the second notch is exposed out of the tube body to be used as a monitoring electrode to collect EMG signals, the spring is connected with the monitoring lead at the first notch, in addition, a fixing pin is inserted into the electrode hole from the second notch and penetrates through the inner side of the spring, and two ends of the fixing pin are respectively fixed at the first interval area and the distal end area.

Further, a spring arranged at the position of the second notch is used as an electrode tension spring; the electrode extension spring is buried in the electrode hole through the second gap, then the proximal end of the electrode extension spring is stretched until the proximal end passes through the first interval region and then stretches into the electrode hole positioned in the electrode wire connection region so as to form a proximal extension spring and then is fixed at the electrode wire connection region, and the distal end of the electrode extension spring is stretched until the distal end passes through the second interval region and then stretches into the electrode hole positioned in the distal region so as to form a distal extension spring and then is fixed at the distal region, and the spring is connected with the monitoring wire through the proximal extension spring at the first gap.

Further, the step of fixing the proximal extension spring at the electrode wire connection region comprises the steps of: redundant proximal extension springs are knocked off in a laser fusing mode, one of the extension end balls is naturally formed at the fusing point of the proximal extension springs in the fusing process, and then the proximal extension springs are fixed at the electrode wire connecting area.

The step of securing the distal extension spring at the distal region is: the redundant distal extension spring is knocked off in a laser fusing mode, another extension end ball is naturally formed at the fusing point of the distal extension spring in the fusing process, and the distal extension spring is fixed at the distal area.

Further, one end, far away from the electrode tension spring, of the proximal tension spring is connected with a monitoring lead, a connecting point and a tension end ball connected with the proximal tension spring are buried into an electrode hole below the first notch, glue is injected from the first notch to fix the connecting point and the tension end ball, and then the whole first notch is filled with glue;

embedding a stretching end ball connected with the distal stretching spring into an electrode hole below the third notch, injecting glue from the third notch to fix the stretching end ball, and filling the whole third notch with the glue;

and glue is injected from the second notch to fix the electrode tension spring and the fixing pin.

Further, a spring arranged at the second notch is used as an electrode spring, and two ends of the electrode spring are welded to the near-end spring and the far-end spring respectively; embedding the welded electrode spring, the proximal spring and the distal spring into the electrode hole through the second gap, fixing the proximal end of the proximal spring at the electrode wire connecting region after penetrating through the first interval region and penetrating into the electrode hole positioned at the electrode wire connecting region, and fixing the distal end of the distal spring at the distal region after penetrating through the second interval region and penetrating into the electrode hole positioned at the distal region, wherein the spring is connected with the monitoring wire through the proximal spring at the first gap.

Further, the step of fixing the proximal spring at the electrode wire connection area comprises the steps of: the redundant proximal springs are knocked off in a laser fusing mode, one of the end balls is naturally formed at the fusing point of the proximal springs in the fusing process, and then the proximal springs are fixed at the electrode wire connecting area;

the step of securing the distal spring at the distal region is: the redundant distal spring is knocked off by means of laser fusing, another end ball is naturally formed at the fusing point of the distal spring in the fusing process, and the distal spring is fixed at the distal area.

Further, one end, far away from the electrode spring, of the proximal spring is connected with a monitoring lead, the connecting point and an end ball connected with the proximal spring are embedded into an electrode hole below the first notch, glue is injected from the first notch to fix the connecting point and the whole first notch is filled with glue after the end ball is connected with the connecting point;

embedding an end ball connected with the distal spring into an electrode hole below the third notch, injecting glue from the third notch to fix the distal ball, and filling the whole third notch with the glue;

and injecting glue from the second notch to fix the electrode spring and the fixing pin.

Further, the electric conductor comprises a conductive spring and a conductive plastic body.

Further, the assembly process of the conductive spring in the pipe wall of the pipe body is as follows:

electrode holes with the same quantity as the conductive springs are formed in the tube wall of the tube body along the length direction of the tube body and used for burying the corresponding conductive springs, an electrode wire connecting area, a first interval area, an electrode area, a second interval area and a distal end area are sequentially formed in the tube wall of the tube body along the length direction of the electrode holes, the outer side wall of the electrode hole at the electrode wire connecting area is removed to form a second opening, the outer side wall of the electrode hole at the electrode area is removed to form a first opening, the conductive springs are filled into the electrode hole through the first opening, two ends of the conductive springs are respectively located in the electrode wire connecting area and the electrode area, and after the conductive springs are connected with a monitoring wire, glue is injected into the second opening to fix the proximal end of the conductive springs, and then the whole second opening is filled with the glue.

Further, the assembly process of the conductive plastic body in the pipe wall of the pipe body is as follows:

glue is injected into one end, close to the electrode area, of the electrode hole in the first interval area and is solidified to form a first colloid for blocking the electrode hole, glue is injected into one end, close to the electrode area, of the electrode hole in the second interval area and is solidified to form a second colloid for blocking the electrode hole, a conductive plastic body is formed by injection molding in a cavity enclosed by the first colloid, the second colloid, the electrode hole and the first opening, the lower side of the conductive plastic body is welded with a conductive spring positioned at the electrode area, and the upper side of the conductive plastic body protrudes out of the outer wall of the tube body.

Further, the assembly process of the conductive plastic body on the pipe wall of the pipe body is as follows:

the method comprises the steps of pre-manufacturing a conductive plastic body with a T-shaped end surface through an injection molding process, wherein the pre-manufactured conductive plastic body comprises integrally-formed ribs and edges; the convex rib is pressed into the electrode hole from the first opening to be propped against the conductive spring, and one side of the edge, which is close to the convex rib, is fixed on the outer wall of the pipe body in an adhesive or welding mode.

Further, the electrical conductor includes an EMG signal transmission spring and an EMG signal transmission film.

Further, the assembly process of the EMG signal transmission spring in the pipe wall of the pipe body is as follows:

electrode holes, the number of which is the same as that of the EMG signal transmission springs, are formed in the tube wall of the tube body along the length direction of the tube body and used for burying the corresponding EMG signal transmission springs, an electrode wire connecting area, a first interval area, an electrode area, a second interval area and a far-end area are sequentially formed in the tube wall of the tube body along the length direction of the electrode holes, gaps are formed in the outer side walls of the electrode wire connecting area and the far-end area by removing the outer side walls of the electrode holes, the EMG signal transmission springs are filled into the electrode holes through one of the gaps, the EMG signal transmission springs are connected with a monitoring wire through the gap positioned at the electrode wire connecting area, glue is injected into the two gaps to fix the EMG signal transmission springs, and the two gaps are filled with glue.

Further, the assembly process of the EMG signal transmission film on the outer wall of the pipe body is as follows:

and removing the outer side wall at the far end of the electrode hole to form at least one through hole, pouring silver paste in a liquid state into the electrode hole from the through hole to be fused with the EMG signal transmission spring, spreading part of silver paste out of the outer wall of the tube body from the top of the through hole, spreading the part of silver paste, adhering the EMG signal transmission film on the outer wall of the tube body through the part of silver paste, and fixedly connecting the EMG signal transmission spring with the EMG signal transmission film after the silver paste is solidified.

Further, a fixing ring is sleeved on the outer side of the pipe body, which is positioned at the electrode wire connecting area, and the fixing ring covers the electrode wire connecting area, and glue is injected into the covering position to bond and fill gaps.

By adopting the structure and the method, the invention has the following beneficial effects:

in the structure of the nerve monitoring tracheal cannula, at least one conductor is assembled on the tracheal cannula body, and the conductor can form a tracheal cannula structure which is stretched, compressed and bent along with the tracheal cannula body after being assembled, so that the tracheal cannula body cannot be obviously hardened as a traditional structure to cause obvious uncomfortable feeling to a patient, the nerve monitoring tracheal cannula is good in safety and not easy to damage tissues of the patient, meanwhile, the nerve monitoring tracheal cannula is easy to operate, and part of the conductor is exposed during operation to be used as a monitoring electrode to collect an EMG signal and transmit the EMG signal to an external monitor for display, thereby enabling monitoring and surgical operation to be performed simultaneously, and reducing operation risks. In the method of the invention, at least one electric conductor is assembled in the pipe wall of the pipe body, and the electric conductor can form a tracheal cannula structure which is stretched, compressed and bent along with the pipe body without being damaged after being assembled, so the method of the invention is convenient to manufacture.

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

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

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

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

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

FIG. 5 is a partially enlarged schematic illustration of section B of the present invention;

FIG. 6 is a cross-sectional view in the direction b-b of the present invention;

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

FIG. 8 is a partially enlarged schematic illustration of portion D of the present invention;

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

FIG. 10 is a partially enlarged schematic illustration of portion 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 pipe body of the present invention;

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

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

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

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

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

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

FIG. 19 is one of the front schematic views of the spring of the present invention when it is installed in a tubular body;

FIG. 20 is a schematic front view of a fixing pin according to the present invention;

FIG. 21 is a right side view of an enlarged schematic of the round spring of the present invention;

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

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

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

fig. 25 is a schematic view showing the internal structure of a third embodiment of the present invention;

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

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

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

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

FIG. 30 is an enlarged partial schematic view of portion O 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 the portion Q of the present invention;

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

FIG. 34 is a cross-sectional view 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 an end view schematic of the 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 schematic view of section C of the present invention;

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

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

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

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

FIG. 45 is a schematic front view of a pipe body according to a fourth embodiment of the present invention;

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

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1 to 23, the nerve monitoring tracheal cannula provided in this embodiment is provided with at least one conductive body 06 assembled on the wall of the tracheal cannula tube 05, and the conductive body 06 can form a tracheal cannula structure that is stretched, compressed and bent without being damaged along with the tracheal tube 05 after being assembled, wherein a portion of the conductive body 06 is exposed out of the tracheal tube 05 as a monitoring electrode to collect EMG signals, and the conductive body 06 is connected to a monitoring wire 01 for transmitting EMG signals to the monitoring wire 01.

In this embodiment, the air pipe 05 is a pipe body with reinforced spring steel wires in the inner cavity, the number of the electric conductors 06 is 4, and because the 4 electric conductors 06 are similar in product structure, only the positions on the pipe wall of the pipe body 05 are different, that is, the following text description only describes the mechanism, function and assembly relation of 1 electric conductor 06, and the 1 electric conductor 06 also represents other electric conductors 06; the electrical conductor 06 may be increased or decreased according to clinical needs.

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 region 110 are sequentially disposed on the tube wall of the tube body 05 along the length direction of the tube body 05, electrode holes 112 for locally burying the corresponding conductors 06 in the same number as the conductors 06 are formed in the tube wall of the tube body 05 along the length direction of the tube body 05, and two ends of the electrode holes 112 extend to the electrode wire connection region 106 and the distal region 110 along the length direction of the tube body 05.

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

In this embodiment, the conductor 06 is a spring, and a fixing pin 102 is sleeved inside the spring, a proximal end of the fixing pin 102 is located in the electrode hole 112 of the first spacing area 107, and a distal end of the fixing pin 102 is located in the electrode hole 112 of the distal end area 110, and the fixing pin 102 is bonded to the electrode hole 112. By utilizing the characteristics of the spring such as conductivity, stretchability, compressibility, bendability and the like, the spring can form a stretched, compressed and bent tracheal intubation structure along with the tube body 05 after assembly.

In this embodiment, the electrical conductor 06 includes an electrode tension spring 0618, the proximal end and the distal end of the electrode tension spring 0618 are respectively stretched to form a proximal tension spring 0603 and a distal tension spring 0604, one ends of the proximal tension spring 0603 and the distal tension spring 0604 far away from the electrode tension spring 0618 are respectively a tension end ball 0601, wherein a part of the electrode tension spring 0618 is installed in the second notch, two tension end balls 0601 are respectively installed in the first notch and the third notch, the proximal tension spring 0603 is connected with the monitoring wire 01, the two tension end balls 0601 and the electrode tension spring 0618 are bonded with the tube body 05, the fixing pin 102 is sleeved inside the electrode tension spring 0618, the proximal end of the fixing pin 102 extends into the electrode hole 112 located in the first interval area 107, and the distal end of the fixing pin 102 extends into the electrode hole 112 located in the distal end area 110 through the electrode hole 112 located in the second interval area 109.

In this embodiment, the outer diameters of the proximal extension spring 0603 and the distal extension spring 0604 are smaller than the inner diameter of the electrode hole 112, and the pitches of the proximal extension spring 0603 and the distal extension spring 0604 are larger than the pitch of the electrode extension spring 0618. The spring, after stretching, has a larger pitch and a smaller outer diameter, thereby allowing the proximal extension spring 0603 to pass through the first spaced-apart region 107 into the electrode wire connecting region 106 and the distal extension spring 0604 to pass through the second spaced-apart region 109 into the distal region 110.

In this embodiment, the end face of the conductor 06 is either circular, elliptical or T-shaped. Specifically, the end surfaces of the proximal extension spring 0603, the distal extension spring 0604 and the electrode extension spring 0618 may be circular or elliptical or T-shaped, or the end surfaces of the electrode extension spring 0618 may be T-shaped, and the end surfaces of the proximal extension spring 0603 and the distal extension spring 0604 may be circular or elliptical or a combination of other end surfaces; the electric conductor 06 with the T-shaped end face comprises a longitudinal raised head and two transverse raised heads, wherein the two transverse raised heads are collinear, and the two transverse raised heads are perpendicular to the longitudinal raised heads; when the electrode tension spring 0618 is partially buried in the electrode hole 112, the longitudinal protrusion of the electrode tension spring 0618 located in the electrode area 108 is buried in the electrode hole 112 located in the electrode area 108 and is fixed by glue; two lateral protruding heads are protruded on the outer wall of the tube body 05 located in the electrode area 108, the bottoms of the two lateral protruding heads are bonded with the outer wall of the tube body 05 and firmly bonded by glue, and the tops of the two lateral protruding heads are used for EMG signal monitoring.

In this embodiment, the pipe body 05 is sleeved with a fixing ring 04 that covers the connection position of the pipeline 02 and the monitoring wire 01 at the position of the electrode wire connection region 106, and the fixing ring 04 is bonded with the pipe body 05, so as to hoop the exposed pipeline 02 and the monitoring wire 01 and prevent the pipeline 02 and the monitoring wire 01 from being pulled at will.

When the embodiment is used, the distal end of the tube body 05 stretches into a human body from the trachea, the outer wall of the tube body 05 contacts with the wall of the human body cavity, the spring is bent, stretched and compressed along with the tube body 05 at will without falling off or breaking, a part of the electrode stretching spring 0618 exposed out of the electrode hole 112 contacts with the wall of the human body cavity and monitors EMG signals, and the monitored EMG signals are sequentially transmitted to an external monitor for display through the electrode stretching spring 0618, the proximal end stretching spring 0603 and the monitoring wire 01, so that the monitoring and the 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 that: in this embodiment, the electrical conductor 06 includes an electrode spring 0619, a proximal spring 0607, and a distal spring 0608, and the connection manner among the proximal spring 0607, the distal spring 0608, and the electrode spring 0619 is a welding manner, which is specifically described as follows:

In this embodiment, the electrical conductor 06 includes an electrode spring 0619, two ends of the electrode spring 0619 are welded with a proximal spring 0607 and a distal spring 0608 respectively, one ends of the proximal spring 0607 and the distal spring 0608 far away from the electrode spring 0619 are end balls 0605, a part of the electrode spring 0619 is installed in the second notch, two end balls 0605 are installed in the first notch and the third notch respectively, the proximal spring 0607 is connected with a monitoring wire 01, the two end balls 0605 and the electrode spring 0619 are bonded with a tube body 05, the fixing pin 102 is sleeved on the inner side of the electrode spring 0619 and extends proximally into an electrode hole 112 located in the first interval region 107, and the distal end of the fixing pin 102 extends distally into the electrode hole 112 located in the distal end region 110 through the electrode hole 112 located in the second interval region 109.

In this embodiment, the outer diameters of the proximal and distal springs 0607, 0608 are smaller than the inner diameter of the electrode hole 112, so that the proximal spring 0607 can pass through the first spacing region 107 into the electrode wire connection region 106 and the distal spring 0608 can pass through the second spacing region 109 into the distal region 110.

Example III

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

In this embodiment, a first opening 306 is formed in the electrode hole 112 located in the electrode area 108, a second opening 307 is formed in the electrode hole 112 located in the electrode wire connection area 106, and the monitoring wire 01 passes through the second opening 307 and is connected to the proximal end of the electrical conductor 06 for transmitting EMG signals; a portion of the distal end of the conductor 06 is exposed outside the tube 05 through the first opening 306, and is used as a monitoring electrode to collect 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 out of the tube 05 to be used as a monitoring electrode for collecting EMG signals. The bottom of the conductive plastic body 302 abuts against the conductive spring 301 or the conductive plastic body 302 and the conductive spring 301 are welded through an injection molding process, so that the distal end of the conductive spring 301 can be blocked from penetrating through the pipe wall of the pipe body 05 from the first opening 306, and meanwhile, electrical connection is formed, so that an EMG signal can be transmitted.

In this embodiment, a first glue body 303 formed by solidifying glue and capable of blocking the electrode hole 112 is disposed at one end, close to the electrode region 108, of the electrode hole 112 in the first interval region 107, and a second glue body 304 formed by solidifying glue and capable of blocking the electrode hole 112 is disposed at one end, close to the electrode region 108, of the electrode hole 112 in the second interval region 109, and the first glue body 303 and the second glue body 304 are respectively bonded with two ends of the conductive plastic body 302, and the first glue body 303 and the second glue body 304 are both bonded with the tube body 05. The first colloid 303 and the second colloid 304 block the two ends of the first opening 306 respectively, so as to enclose a cavity for injection molding the conductive plastic body 302, and prevent the glue from flowing along the electrode hole 112 in the injection molding process.

In this embodiment, the end surface of the conductive plastic body 302 is T-shaped and includes an integrally formed protruding rib 308 and a rim 309, where the protruding rib 308 is embedded into the electrode hole 112 through the first opening 306 and is in contact fit with the conductive spring 301, two ends of the protruding rib 308 are respectively bonded with the first colloid 303 and the second colloid 304, the rim 309 is exposed outside the tube body 05, and one side of the rim 309 close to the protruding rib 308 is fixedly connected with the outer wall of the tube body 05, and may be fixed by bonding or welding.

Example IV

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

in this embodiment, the electrical conductor 06 includes an EMG signal transmission film 201 and an EMG signal transmission spring 202, where the EMG signal transmission film 201 is disposed on an outer wall of the tube body 05 at the electrode region 108 and is used as a monitoring electrode to collect EMG signals, the EMG signal transmission spring 202 is disposed in the electrode hole 112 along the length direction of the tube body 05 to transmit EMG signals to the monitoring wire 01, the EMG signal transmission film 201 is a conductive, ductile and bendable film, and the EMG signal transmission film 201 and the EMG signal transmission spring 202 are connected to form a tracheal cannula structure that can be bent, stretched and compressed arbitrarily along with the tube body 05 without being damaged.

In this embodiment, notches are formed at two ends of the electrode hole 112, at least one through hole 205 is formed at the electrode region 108 of the electrode hole 112, the EMG signal transmission film 201 covers the through hole 205, the EMG signal transmission film 201 is connected with the EMG signal transmission spring 202 through a solidified silver paste 203 via the through hole 205, and signals collected by the EMG signal transmission film 201 are sequentially transmitted to the external monitor via the silver paste 203, the EMG signal transmission spring 202 and the monitoring wire 01 for display. The silver paste 203 may be replaced with a material that has conductivity and adhesiveness and is curable, such as graphene ink, carbon fiber ink, conductive glue, or the like.

Example five

Referring to fig. 1 to 46, the present embodiment is a manufacturing method of a nerve monitoring tracheal cannula according to the present invention, at least one electric conductor 06 is assembled in a wall of a tracheal cannula tube 05, the electric conductor 06 can form a tracheal cannula structure which is stretched, compressed and bent along with the tracheal cannula tube 05 without being damaged after being assembled, wherein a part of the electric conductor 06 is exposed out of the tracheal cannula tube 05 as a monitoring electrode to collect EMG signals, and the electric conductor 06 is connected with a monitoring lead 01 to transmit the EMG signals to the monitoring lead 01.

In this embodiment, the electrical conductor 06 is a spring, the end face of the spring is circular, elliptical or T-shaped, and the assembly process of the spring in the tube wall of the tube body 05 is as follows:

electrode holes 112 which are the same as the number of the springs and are used for locally burying the corresponding springs are formed in the pipe wall of the pipe body 05 along the length direction of the pipe body 05, an electrode wire connecting region 106, a first interval region 107, an electrode region 108, a second interval region 109 and a distal region 110 are sequentially formed in the pipe wall of the pipe body 05 along the length direction of the electrode holes 112, a first notch is formed by removing the outer side wall of the electrode hole 112 at the electrode wire connecting region 106, a second notch is formed by removing the outer side wall of the electrode hole 112 at the electrode region 108, and a third notch is formed by removing the outer side wall of the electrode hole 112 at the distal region 110;

Wherein, the spring is installed in the electrode hole 112 through the second notch, and the two ends of the spring are respectively stretched to the electrode wire connecting area 106 and the distal end area 110 and fixed, a part of the spring at the second notch is exposed out of the tube body 05 to be used as a monitoring electrode for collecting EMG signals, the spring is connected with the monitoring lead 01 at the first notch, in addition, a fixing pin 102 is inserted into the electrode hole 112 from the second notch and penetrates through the inner side of the spring, and the two ends of the fixing pin 102 are respectively fixed at the first interval area 107 and the distal end area 110.

In this embodiment, the spring installed at the second notch position serves as an electrode tension spring 0618; the electrode tension spring 0618 is first embedded into the electrode hole 112 through a second gap, then the proximal end of the electrode tension spring 0618 is stretched until the end passes through the first gap region 107 and then stretches into the electrode hole 112 located in the electrode wire connection region 106, so as to form a proximal tension spring 0603, and then fixed at the electrode wire connection region 106, and the distal end of the electrode tension spring 0618 is stretched until the end passes through the second gap region 109 and then stretches into the electrode hole 112 located in the distal region 110, so as to form a distal tension spring 0604, and then fixed at the distal region 110, and the spring is connected with the monitoring wire 01 through the proximal tension spring 0603 at the first gap. During stretching, the pitch of the proximal extension spring 0603 is increased, the outer diameter of the proximal extension spring 0603 is reduced, the proximal extension spring 0603 is smoothly stretched into the electrode hole 112 in the electrode wire connection region 106, similarly, the pitch of the distal extension spring 0604 is increased, the outer diameter of the distal extension spring 0604 is reduced, and the distal extension spring 0604 is smoothly stretched into the electrode hole 112 in the distal region 110.

In this embodiment, the step of fixing the proximal extension spring 0603 at the electrode wire connection region 106 is as follows: redundant proximal extension springs 0603 are knocked off in a laser fusing mode, one of extension end balls 0601 is naturally formed at a fusing point of the proximal extension springs 0603 in the fusing process, and then the proximal extension springs 0603 are fixed at an electrode wire connecting area 106.

The distal extension spring 0604 is secured at the distal region 110 by: the excess distal extension spring 0604 is removed by laser fusing, and during the fusing process, another extension end ball 0601 is naturally formed at the fusing point of the distal extension spring 0604, and the distal extension spring 0604 is fixed at the distal end region 110.

In this embodiment, the end of the proximal extension spring 0603, which is far away from the electrode extension spring 0618, is connected with the monitoring wire 01, and the connection mode may be part riveting, soldering, twisting or other connection modes capable of ensuring firm and smooth connection and transmitting EMG monitoring signals; the connection point and a stretching end ball 0601 connected with the proximal stretching spring 0603 are buried in an electrode hole 112 positioned below the first notch, glue is injected from the first notch to fix the connection point and the stretching end ball 0601, and then the whole first notch is filled with glue;

Embedding a stretching end ball 0601 connected with the distal stretching spring 0604 into an electrode hole 112 positioned below the third notch, and filling glue into the third notch to fix the stretching end ball 0601 and then filling the whole third notch with the glue;

and glue is injected from the second notch to fix the electrode tension spring 0618 and the fixing pin 102, and the distal end of the fixing pin 102 and the portion of the fixing pin 102 located in the electrode area 108 are bonded to the tube body 05 through glue.

In this embodiment, the spring installed at the second notch position is used as an electrode spring 0619, and two ends of the electrode spring 0619 are welded to the proximal end spring 0607 and the distal end spring 0608 respectively; the welded electrode springs 0619, the proximal springs 0607 and the distal springs 0608 are embedded into the electrode holes 112 through the second notch, the proximal ends of the proximal springs 0607 penetrate through the first interval region 107 to extend into the electrode holes 112 in the electrode wire connection region 106 and then are fixed at the electrode wire connection region 106, and the distal ends of the distal springs 0608 penetrate through the second interval region 109 to extend into the electrode holes 112 in the distal region 110 and then are fixed at the distal region 110, and the springs are connected with the monitoring lead 01 through the proximal springs 0607 at the first notch.

In this embodiment, the step of fixing the proximal spring 0607 at the electrode wire connection region 106 is as follows: redundant proximal springs 0607 are knocked off in a laser fusing mode, one of end balls 0605 is naturally formed at a fusing point of the proximal springs 0607 in the fusing process, and then the proximal springs 0607 are fixed at an electrode wire connecting area 106;

The distal spring 0608 is secured at the distal region 110 by: the excess distal spring 0608 is removed by laser fusing, and during fusing, another end ball 0605 is naturally formed at the point of fusion of said distal spring 0608, and the distal spring 0608 is secured at the distal region 110.

In this embodiment, the end of the proximal spring 0607 far away from the electrode spring 0619 is connected with the monitoring wire 01, and the connection mode may be parts riveting, soldering, twisting or other connection modes capable of ensuring firm and smooth connection and transmitting EMG monitoring signals; the connection point and the end ball 0605 connected with the proximal spring 0607 are buried in the electrode hole 112 below the first notch, glue is injected from the first notch to fix the connection point and the end ball 0605 to fill the whole first notch;

embedding a terminal ball 0605 connected with the distal spring 0608 into an electrode hole 112 positioned below the third notch, and filling the whole third notch with glue after the glue is injected into the third notch to fix the distal ball 0605;

and glue is injected from the second notch to fix the electrode spring 0619 and the fixing pin 102, and the distal end of the fixing pin 102 and the portion of the fixing pin 102 located in the electrode area 108 are adhered to the tube body 05 through glue.

In this embodiment, the electrical conductor 06 includes a conductive spring 301 and a conductive plastic body 302.

In this embodiment, the assembly process of the conductive spring 301 in the pipe wall of the pipe body 05 is as follows:

electrode holes 112, which are the same in number as the conductive springs 301, for burying the corresponding conductive springs 301 are formed in the pipe wall of the pipe body 05 along the length direction of the pipe body 05, an electrode wire connection region 106, a first interval region 107, an electrode region 108, a second interval region 109 and a distal region 110 are sequentially formed in the pipe wall of the pipe body 05 along the length direction of the electrode holes 112, the outer side walls of the electrode holes 112 at the electrode wire connection region 106 are removed to form a second opening 307, the outer side walls of the electrode holes 112 at the electrode region 108 are removed to form a first opening 306, the conductive springs 301 are filled into the electrode holes 112 through the first opening 306, two ends of the conductive springs 301 are respectively positioned at the electrode wire connection region 106 and the electrode region 108, after the conductive springs 301 are connected with the monitoring wires 01 at the second opening 307, glue is injected from the second opening 307 to fix the proximal ends of the conductive springs 301, and the whole second opening 307 is filled with glue.

In this embodiment, the assembly process of the conductive plastic body 302 in the pipe wall of the pipe body 05 is as follows:

Glue is injected into one end, close to the electrode area 108, of the electrode hole 112 in the first interval area 107 and is solidified to form a first colloid 303 for blocking the electrode hole 112, glue is injected into one end, close to the electrode area 108, of the electrode hole 112 in the second interval area 109 and is solidified to form a second colloid 304 for blocking the electrode hole 112, a conductive plastic body 302 is formed in a cavity surrounded by the first colloid 303, the second colloid 304, the electrode hole 112 and the first opening 306 in an injection molding mode, the lower side of the conductive plastic body 302 is welded with a conductive spring 301 at the electrode area 108, and the upper side of the conductive plastic body 302 protrudes out of the outer wall of the tube body 05.

In this embodiment, the assembly process of the conductive plastic body 302 on the pipe wall of the pipe body 05 is as follows:

the conductive plastic body 302 with the T-shaped end surface is manufactured in advance through an injection molding process, and the prefabricated conductive plastic body 302 comprises integrally-formed ribs 308 and edges 309; wherein, the rib 308 is pressed into the electrode hole 112 from the first opening 306 to abut against the conductive spring 301, and the side of the edge 309 close to the rib 308 is fixed on the outer wall of the tube body 05 by bonding or welding.

In this embodiment, the electrical conductor 06 includes an EMG signal transmission spring 202 and an EMG signal transmission film 201.

In this embodiment, the assembly process of the EMG signal transmission spring 202 in the pipe wall of the pipe body 05 is as follows:

electrode holes 112, which are the same in number as the EMG signal transmission springs 202, for burying the corresponding EMG signal transmission springs 202 are formed in the pipe wall of the pipe body 05 along the length direction of the pipe body 05, an electrode wire connection region 106, a first interval region 107, an electrode region 108, a second interval region 109 and a distal region 110 are sequentially formed in the pipe wall of the pipe body 05 along the length direction of the electrode holes 112, gaps are removed from the outer side walls of the electrode holes 112, which are positioned in the electrode wire connection region 106 and the distal region 110, the EMG signal transmission springs 202 are installed in the electrode holes 112 through one of the gaps, the EMG signal transmission springs 202 are connected with a monitoring wire 01 through the gap positioned in the electrode wire connection region 106, glue is injected from the two gaps to fix the EMG signal transmission springs 202, and the glue is filled in the two gaps.

In this embodiment, the assembly process of the EMG signal transmission film 201 on the outer wall of the tube body 05 is as follows:

the outer side wall of the distal end of the electrode hole 112 is removed to form at least one through hole 205, a silver paste 203 in a liquid state is poured into the electrode hole 112 from the through hole 205 to be fused with the EMG signal transmission spring 202, a part of the silver paste 203 diffuses out of the outer wall of the tube body 05 from the top of the through hole 205, the part of the silver paste 203 is spread and smeared, and the EMG signal transmission film 201 is adhered to the outer wall of the tube body 05 through the part of the silver paste 203, and after the silver paste 203 is solidified, the EMG signal transmission spring 202 is fixedly connected with the EMG signal transmission film 201.

In this embodiment, a fixing ring 04 is sleeved on the outer side of the tube body 05 located at the electrode wire connecting region 106, and the fixing ring 04 covers the electrode wire connecting region 106, glue is injected into the covering position to bond and fill gaps, so as to pinch and cover the exposed pipeline 02 and the monitoring wire 01, and prevent the connection point of the monitoring wire 01 and the spring from being pulled at will.

The preferred embodiments of the present invention have been described above. It is to be understood that the invention is not limited to the specific embodiments described above, wherein devices and structures not described in detail are to be understood as being implemented in a manner common in the art; any person skilled in the art can make many possible variations and modifications to the technical solution of the present invention or modifications to equivalent embodiments without departing from the scope of the technical solution of the present invention, using the methods and technical contents disclosed above, without affecting the essential content of the present invention. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A nerve monitoring trachea cannula, characterized in that: assembling at least one electric conductor (06) in the pipe wall of the pipe body (05) of the tracheal cannula, wherein the electric conductor (06) can form a stretching, compressing and bending structure without being damaged along with the pipe body (05) after being assembled, a part of the electric conductor (06) is exposed out of the pipe body (05) to be used as a monitoring electrode for acquiring EMG signals, and the electric conductor (06) is connected with a monitoring wire (01) for transmitting the EMG signals to the monitoring wire (01);

electrode wire connecting areas (106), first interval areas (107), electrode areas (108), second interval areas (109) and far-end areas (110) are sequentially arranged on the pipe wall of the pipe body (05) along the length direction of the pipe body (05), electrode holes (112) which are the same in number as the conductors (06) and used for locally burying the corresponding conductors (06) are formed in the pipe wall of the pipe body (05) along the length direction of the pipe body (05), and two ends of each electrode hole (112) extend to the electrode wire connecting areas (106) and the far-end areas (110) along the length direction of the pipe body (05);

a first notch is formed in the electrode hole (112) located in the electrode wire connecting area (106), a second notch is formed in the electrode hole (112) located in the electrode area (108), a third notch is formed in the electrode hole (112) located in the distal end area (110), and a monitoring lead (01) penetrates through the first notch and is connected with the proximal end of the conductor (06);

The electric conductor (06) is a spring, a fixing pin (102) is sleeved on the inner side of the spring, the proximal end of the fixing pin (102) is positioned in an electrode hole (112) of the first interval region (107), the distal end of the fixing pin (102) is positioned in the electrode hole (112) of the distal region (110), and the fixing pin (102) is adhered to the electrode hole (112);

the electric conductor (06) comprises an electrode tension spring (0618), the proximal end and the distal end of the electrode tension spring (0618) are respectively stretched to form a proximal tension spring (0603) and a distal tension spring (0604), one end, far away from the electrode tension spring (0618), of the proximal tension spring (0603) and the distal tension spring (0604) is a tension end ball (0601), a part of the electrode tension spring (0618) is arranged in a second notch, two tension end balls (0601) are respectively arranged in a first notch and a third notch, the proximal tension spring (0603) is connected with a monitoring wire (01), the two tension end balls (0601) and the electrode tension spring (0618) are adhered to a tube body (05), the fixing pin (102) is sleeved on the inner side of the electrode tension spring (8) and extends to an electrode hole (112) located in a first interval area (107) in a mode, and the far end of the fixing pin (102) extends to an electrode hole (112) located in a far end area (110) located in a second interval area (109).

2. A nerve monitoring endotracheal tube according to claim 1, wherein: the outer diameters of the proximal extension spring (0603) and the distal extension spring (0604) are smaller than the inner diameter of the electrode hole (112), and the pitches of the proximal extension spring (0603) and the distal extension spring (0604) are larger than the pitches of the electrode extension spring (0618).

3. A nerve monitoring trachea cannula, characterized in that: assembling at least one electric conductor (06) in the pipe wall of the pipe body (05) of the tracheal cannula, wherein the electric conductor (06) can form a stretching, compressing and bending structure without being damaged along with the pipe body (05) after being assembled, a part of the electric conductor (06) is exposed out of the pipe body (05) to be used as a monitoring electrode for acquiring EMG signals, and the electric conductor (06) is connected with a monitoring wire (01) for transmitting the EMG signals to the monitoring wire (01);

the electric conductor (06) comprises an electrode spring (0619), a proximal spring (0607) and a distal spring (0608) are welded at two ends of the electrode spring (0619) respectively, one end, far away from the electrode spring (0619), of the proximal spring (0607) and the distal spring (0608) is an end ball (0605), part of the electrode spring (0619) is installed in a second notch, two end balls (0605) are installed in a first notch and a third notch respectively, the proximal spring (0607) is connected with a monitoring wire (01), the two end balls (0605) and the electrode spring (0619) are adhered with a tube body (05), a fixing pin (102) is sleeved on the inner side of the electrode spring (0619) and extends to an electrode hole (112) located in a first interval area (107) in a proximal mode, and the distal end of the fixing pin (102) extends to an electrode hole (112) located in a distal area (110) through an electrode hole (112) located in a second interval area (109).

4. A nerve monitoring endotracheal tube according to claim 3, wherein: the outer diameter of the proximal spring (0607) and the outer diameter of the distal spring (0608) are smaller than the inner diameter of the electrode hole (112).

5. A nerve monitoring trachea cannula, characterized in that: assembling at least one electric conductor (06) in the pipe wall of the pipe body (05) of the tracheal cannula, wherein the electric conductor (06) can form a stretching, compressing and bending structure without being damaged along with the pipe body (05) after being assembled, a part of the electric conductor (06) is exposed out of the pipe body (05) to be used as a monitoring electrode for acquiring EMG signals, and the electric conductor (06) is connected with a monitoring wire (01) for transmitting the EMG signals to the monitoring wire (01);

A first opening (306) is formed in the electrode hole (112) located in the electrode area (108), a second opening (307) is formed in the electrode hole (112) located in the electrode wire connecting area (106), a monitoring lead (01) passes through the second opening (307) to be connected with the proximal end of the electric conductor (06), and a part of the distal end of the electric conductor (06) is exposed out of the tube body (05) through the first opening (306);

the electric conductor (06) comprises an electric conduction spring (301) and an electric conduction plastic body (302), the electric conduction spring (301) is completely buried in the electrode hole (112), the monitoring lead (01) passes through the second opening (307) to be connected with the proximal end of the electric conduction spring (301), the electric conduction plastic body (302) is locally buried in the electrode hole (112) located 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 serve as a monitoring electrode to collect EMG signals.

6. A nerve monitoring endotracheal tube according to claim 5, wherein: the electrode hole (112) of the first interval region (107) is internally provided with a first colloid (303) which is formed by solidifying glue and can block the electrode hole (112) near one end of the electrode region (108), the electrode hole (112) of the second interval region (109) is internally provided with a second colloid (304) which is formed by solidifying glue and can block the electrode hole (112) near one end of the electrode region (108), and the first colloid (303) and the second colloid (304) are respectively adhered to two ends of the conductive plastic body (302) and the first colloid (303) and the second colloid (304) are adhered to the pipe body (05).

7. A nerve monitoring endotracheal tube according to claim 6, wherein: the end face of the conductive plastic body (302) is shaped like a T and comprises a convex rib (308) and an edge (309) which are integrally formed, wherein the convex rib (308) is buried into the electrode hole (112) through a first opening (306) to be in contact fit with the conductive spring (301), two ends of the convex rib (308) are respectively adhered to the first colloid (303) and the second colloid (304), the edge (309) is exposed out of the tube body (05), and one side, close to the convex rib (308), of the edge (309) is fixedly connected with the outer wall of the tube body (05).

8. A nerve monitoring trachea cannula, characterized in that: assembling at least one electric conductor (06) in the pipe wall of the pipe body (05) of the tracheal cannula, wherein the electric conductor (06) can form a stretching, compressing and bending structure without being damaged along with the pipe body (05) after being assembled, a part of the electric conductor (06) is exposed out of the pipe body (05) to be used as a monitoring electrode for acquiring EMG signals, and the electric conductor (06) is connected with a monitoring wire (01) for transmitting the EMG signals to the monitoring wire (01);

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) positioned at the electrode area (108) and used as a monitoring electrode to collect 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 used for transmitting EMG signals to the monitoring lead (01), the EMG signal transmission film (201) is a conductive, extensible and bendable film, and the EMG signal transmission film (201) is connected with the EMG signal transmission spring (202) to form an tracheal cannula structure which can be bent, stretched and compressed randomly along with the tube body (05) and is not damaged;

the electrode hole (112) is provided with notches at two ends, the electrode hole (112) is provided with at least one through hole (205) at 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 the EMG signal transmission spring (202) through a solidified silver paste (203) through the through hole (205).

9. A nerve monitoring endotracheal tube as claimed in any one of claims 1 to 8 wherein: the pipe body (05) is sleeved with a fixing ring (04) which is used for covering the joint of the pipeline (02) and the monitoring lead (01) at the position of the electrode wire connecting region (106), and the fixing ring (04) is adhered to the pipe body (05).

10. A method for manufacturing a nerve monitoring tracheal cannula; the method is characterized in that:

assembling at least one electric conductor (06) in the pipe wall of a pipe body (05) of the tracheal cannula, wherein the electric conductor (06) can form a stretching, compressing and bending structure without being damaged along with the pipe body (05) after being assembled, a part of the electric conductor (06) is exposed out of the pipe body (05) to be used as a monitoring electrode for acquiring EMG signals, and the electric conductor (06) is connected with a monitoring wire (01) to be used for transmitting the EMG signals to the monitoring wire (01);

the electric conductor (06) is a spring, the end face of the spring is round or elliptical or T-shaped, and the assembly process of the spring in the pipe wall of the pipe body (05) is as follows:

electrode holes (112) which are the same as the springs in number and are used for locally burying the corresponding springs are formed in the pipe wall of the pipe body (05) along the length direction of the pipe body (05), an electrode wire connecting area (106), a first interval area (107), an electrode area (108), a second interval area (109) and a distal end area (110) are sequentially formed in the pipe wall of the pipe body (05) along the length direction of the electrode holes (112), the outer side wall of the electrode hole (112) at the electrode wire connecting area (106) is removed to form a first notch, the outer side wall of the electrode hole (112) at the electrode area (108) is removed to form a second notch, and the outer side wall of the electrode hole (112) at the distal end area (110) is removed to form a third notch;

Wherein the spring is installed into the electrode hole (112) through the second notch, the two ends of the spring are respectively stretched to the electrode wire connecting area (106) and the distal end area (110) and fixed, a part of the spring positioned at the second notch is exposed out of the tube body (05) to be used as a monitoring electrode to collect EMG signals, the spring is connected with the monitoring lead (01) at the first notch, in addition, a fixing pin (102) is inserted into the electrode hole (112) from the second notch and penetrates through the inner side of the spring, and the two ends of the fixing pin (102) are respectively fixed at the first interval area (107) and the distal end area (110);

a spring arranged at the second notch position is used as an electrode stretching spring (0618); the electrode stretching spring (0618) is embedded into the electrode hole (112) through a second gap, then the proximal end of the electrode stretching spring (0618) stretches into the electrode hole (112) located in the electrode wire connecting region (106) after penetrating through the first interval region (107) to form a proximal stretching spring (0603), then the proximal stretching spring is fixed at the electrode wire connecting region (106), and the distal end of the electrode stretching spring (0618) stretches into the electrode hole (112) located in the distal region (110) after penetrating through the second interval region (109) to form a distal stretching spring (0604), then the distal stretching spring is fixed at the distal region (110), and the spring is connected with the monitoring wire (01) at the first gap through the proximal stretching spring (0603).

11. The method for manufacturing the nerve monitoring tracheal cannula according to claim 10, wherein the method comprises the following steps:

the proximal extension spring (0603) is fixed at the electrode wire connection area (106) in the following steps: redundant proximal extension springs (0603) are knocked off in a laser fusing mode, one extension end ball (0601) is naturally formed at a fusing point of the proximal extension springs (0603) in the fusing process, and then the proximal extension springs (0603) are fixed at an electrode wire connecting area (106);

the step of securing the distal extension spring (0604) at the distal region (110) is: the redundant distal extension spring (0604) is knocked off in a laser fusing mode, another extension end ball (0601) is naturally formed at the fusing point of the distal extension spring (0604) in the fusing process, and the distal extension spring (0604) is fixed at the distal end area (110).

12. The method for manufacturing a nerve monitoring tracheal cannula according to claim 11, wherein:

one end, far away from the electrode tension spring (0618), of the proximal tension spring (0603) is connected with a monitoring lead (01), a connecting point and a tension end ball (0601) connected with the proximal tension spring (0603) are buried into an electrode hole (112) below the first notch, glue is injected from the first notch to fix the connecting point and the tension end ball (0601), and then the whole first notch is filled with glue;

Embedding a stretching end ball (0601) connected with the distal stretching spring (0604) into an electrode hole (112) positioned below the third notch, injecting glue from the third notch to fix the stretching end ball (0601), and filling the whole third notch with the glue;

and glue is injected from the second notch to fix the electrode tension spring (0618) and the fixing pin (102).

13. A manufacturing method of a nerve monitoring tracheal cannula is characterized by comprising the following steps:

the spring arranged at the second notch position is used as an electrode spring (0619), and two ends of the electrode spring (0619) are respectively welded to a near-end spring (0607) and a far-end spring (0608); embedding the welded electrode spring (0619), the proximal spring (0607) and the distal spring (0608) into the electrode hole (112) through a second gap, fixing the proximal end of the proximal spring (0607) at the electrode wire connecting region (106) after penetrating through the first interval region (107) and extending into the electrode hole (112) positioned at the electrode wire connecting region (106), and fixing the distal end of the distal spring (0608) at the distal region (110) after penetrating through the second interval region (109) and extending into the electrode hole (112) positioned at the distal region (110), wherein the spring is connected with the monitoring lead (01) at the first gap through the proximal spring (0607).

14. The method for manufacturing a nerve monitoring tracheal cannula according to claim 13, wherein:

the proximal spring (0607) is fixed at the electrode wire connection area (106) in the following steps: redundant proximal springs (0607) are knocked off in a laser fusing mode, one of end balls (0605) is naturally formed at a fusing point of the proximal springs (0607) in the fusing process, and then the proximal springs (0607) are fixed at an electrode wire connecting area (106);

the step of securing the distal spring (0608) at the distal region (110) is: the redundant distal spring (0608) is knocked off by means of laser fusing, another end ball (0605) is naturally formed at the fusing point of the distal spring (0608) in the fusing process, and the distal spring (0608) is fixed at the distal end area (110).

15. The method for manufacturing a nerve monitoring tracheal cannula according to claim 14, wherein:

one end, far away from the electrode spring (0619), of the proximal spring (0607) is connected with the monitoring lead (01), the connecting point and an end ball (0605) connected with the proximal spring (0607) are buried into an electrode hole (112) below the first notch, glue is injected from the first notch to fix the connecting point and the whole first notch is filled with glue after the end ball (0605) is filled with glue;

Embedding an end ball (0605) connected with the distal spring (0608) into an electrode hole (112) positioned below the third notch, injecting glue from the third notch to fix the end ball (0605), and filling the whole third notch with the glue;

and injecting glue from the second notch to fix the electrode spring (0619) and the fixing pin (102).

16. A manufacturing method of a nerve monitoring tracheal cannula is characterized by comprising the following steps:

the electric conductor (06) comprises an electric spring (301) and an electric plastic body (302);

the assembly process of the conductive spring (301) in the pipe wall of the pipe body (05) is as follows:

electrode holes (112) which are the same as the conductive springs (301) in number and are used for burying the corresponding conductive springs (301) are formed in the pipe wall of the pipe body (05) along the length direction of the pipe body (05), an electrode wire connecting area (106), a first interval area (107), an electrode area (108), a second interval area (109) and a distal end area (110) are sequentially formed in the pipe wall of the pipe body (05) along the length direction of the electrode holes (112), the outer side walls of the electrode holes (112) at the electrode wire connecting area (106) are removed to form a second opening (307), the outer side walls of the electrode holes (112) at the electrode area (108) are removed to form a first opening (306), the conductive springs (301) are filled into the electrode holes (112) through the first opening (306), the two ends of each conductive spring (301) are respectively located in the electrode wire connecting area (106) and the electrode area (108), after the conductive springs (301) are connected with a monitoring wire (01), glue is injected into the second opening (307) to fix the proximal end of each conductive spring (301), and the whole second opening (307) is filled with glue.

17. The method for manufacturing a nerve monitoring tracheal cannula according to claim 16, wherein the assembling process of the conductive plastic body (302) in the wall of the tube body (05) is as follows:

glue is injected into one end, close to the electrode area (108), of the electrode hole (112) in the first interval area (107) and is solidified to form a first colloid (303) for blocking the electrode hole (112), glue is injected into one end, close to the electrode area (108), of the electrode hole (112) in the second interval area (109) and is solidified to form a second colloid (304) for blocking the electrode hole (112), a conductive plastic body (302) is formed in a cavity surrounded by the first colloid (303), the second colloid (304), the electrode hole (112) and the first opening (306) in an injection molding mode, the lower side of the conductive plastic body (302) is welded with a conductive spring (301) located at the electrode area (108), and the upper side of the conductive plastic body (302) protrudes out of the outer wall of the tube body (05).

18. The method for manufacturing a nerve monitoring tracheal cannula according to claim 16, wherein the assembling process of the conductive plastic body (302) on the wall of the tube body (05) is as follows:

The method comprises the steps of (1) pre-manufacturing a conductive plastic body (302) with a T-shaped end surface through an injection molding process, wherein the pre-manufactured conductive plastic body (302) comprises integrally-formed ribs (308) and edges (309); the convex rib (308) is pressed into the electrode hole (112) from the first opening (306) to be abutted against the conductive spring (301), and one side of the edge (309) close to the convex rib (308) is fixed on the outer wall of the pipe body (05) in an adhesive or welding mode.

19. A manufacturing method of a nerve monitoring tracheal cannula is characterized by comprising the following steps:

the electric conductor (06) comprises an EMG signal transmission spring (202) and an EMG signal transmission film (201);

the assembly process of the EMG signal transmission spring (202) in the pipe wall of the pipe body (05) is as follows:

Electrode holes (112) which are the same as the EMG signal transmission springs (202) in number and are used for burying the corresponding EMG signal transmission springs (202) are formed in the pipe wall of the pipe body (05) along the length direction of the pipe body (05), an electrode wire connecting area (106), a first interval area (107), an electrode area (108), a second interval area (109) and a distal end area (110) are sequentially formed in the pipe wall of the pipe body (05) along the length direction of the electrode holes (112), the electrode holes (112) are formed in the electrode wire connecting area (106) and the outer side wall of the distal end area (110) in a removed mode, the EMG signal transmission springs (202) are installed in the electrode holes (112) through one of the gaps, the EMG signal transmission springs (202) are connected with a monitoring wire (01) through the gap located at the electrode wire connecting area (106), glue is injected into the two gaps to fix the EMG signal transmission springs (202), and the glue is filled into the two gaps.

20. The method for manufacturing a nerve monitoring tracheal cannula according to claim 19, wherein the assembly process of the EMG signal transmission film (201) on the outer wall of the tube body (05) is as follows:

the outer side wall of the far end of the electrode hole (112) is removed to form at least one through hole (205), silver paste (203) in a liquid state is poured into the electrode hole (112) from the through hole (205) to be fused with the EMG signal transmission spring (202), part of the silver paste (203) diffuses out of the outer wall of the tube body (05) from the top of the through hole (205), the part of the silver paste (203) is smeared and spread, the EMG signal transmission film (201) is adhered to the outer wall of the tube body (05) through the part of the silver paste (203), and after the silver paste (203) is solidified, the EMG signal transmission spring (202) is fixedly connected with the EMG signal transmission film (201).

21. A method of manufacturing a nerve monitoring endotracheal tube according to any one of claims 10 to 20, wherein: a fixing ring (04) is sleeved on the outer side of the pipe body (05) at the electrode wire connecting area (106), the fixing ring (04) covers the electrode wire connecting area (106), and glue is injected into the covering to bond and fill gaps.