CN210813283U - Neural monitoring trachea cannula - Google Patents
Neural monitoring trachea cannula Download PDFInfo
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- CN210813283U CN210813283U CN201921223570.1U CN201921223570U CN210813283U CN 210813283 U CN210813283 U CN 210813283U CN 201921223570 U CN201921223570 U CN 201921223570U CN 210813283 U CN210813283 U CN 210813283U
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- monitoring
- endotracheal tube
- vocal cords
- nerve
- tracheal
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/04—Tracheal tubes
Abstract
The utility model provides a neural monitoring trachea cannula, this trachea cannula includes: a tracheal tube; the annular air bag is used for sealing a gap between the tracheal catheter and the tracheal wall of a patient, and is annularly arranged on the outer wall of the tracheal catheter; the support air bag is used for positioning the tracheal cannula, is arranged on one side of the tracheal catheter facing to the glottis, and is matched with the shape of the glottis after being inflated and expanded; the first inflating assembly and the second inflating assembly are respectively used for inflating the annular air bag and the supporting air bag.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a nerve monitoring trachea cannula.
Background
The trachea cannula is a supraglottic airway management device, when a patient can not breathe spontaneously in emergency treatment and anesthesia, a temporary artificial airway is created to ventilate the patient, the recurrent laryngeal nerve injury in the current clinical thyroid surgery is a common complication of the neck surgery, and when the anatomical structures are aligned, the laryngeal nerve along the neck can be usually distinguished. However, the presence of abnormal tissue, such as tumors, inflammation or trauma, may make nerve dissection almost impossible without damage. Therefore, there are trachea cannula for monitoring recurrent laryngeal nerves clinically, which is used for monitoring recurrent laryngeal nerves in thyroid surgery, but because recurrent laryngeal nerves run in the tracheoesophageal canal groove from left and right sides, each nerve controls a group of laryngeal muscles including vocal cords, paralysis can be caused by slight traction or direct contact, or poor contact can be caused by direct mechanical operations such as forceps and excessive traction, suturing and even cutting off in surgery, which are not found in time, recurrent laryngeal nerve injury can be caused, recurrent laryngeal nerve injury is a serious complication of thyroid surgery at present, vocal cord paralysis can be caused after recurrent laryngeal nerve injury to affect life quality of patients, although modern basic medicine and clinical medicine develop rapidly, related knowledge and experience are accumulated, various preventive measures are taken in surgery, recurrent laryngeal nerve injury still happens in thyroid surgery, real-time nerve function monitoring in surgery can accurately perform nerve positioning and determine nerve function state, and can provide reliable objective indexes for prognosis of damaged nerve functions, thereby reducing iatrogenic nerve injury. At present, the incidence rate of the adverse events is about 10 percent, the adverse events such as hoarseness, aphonia, choking of drinking water, dyspnea or asphyxia and the like can be caused after the injury, so the prevention of the injury of recurrent laryngeal nerves is a very important thing in the operations. Therefore, the laryngeal recurrent nerve is monitored and identified by electromyography for the first time from the beginning of the seventies of the last century, and the electrode is an electrode for monitoring the electromyogram signal of the laryngeal muscles and is arranged on a tracheal cannula for use together. However, although a nerve detection device is used for detecting recurrent laryngeal nerves, detection failure often occurs, and the condition that the detection cannot be performed occurs, because the vocal cord structure is similar to a triangle, the phenomenon that the trachea cannula falls down after being inserted causes that the electrode cannot be contacted, or the electrode has poor conductivity, and thus detection failure can be caused.
CN207493036U discloses a neural monitoring two-chamber trachea cannula device of sac-like electrode, the device can effectively carry out neural signal monitoring at the operation in-process, avoid appearing neural damage and its sequelae, its structure includes bronchus gasbag, trachea gasbag and electrode gasbag, wherein the electrode gasbag that describes centers on trachea cannula circumference's annular gasbag after aerifing, the wire electrode exposes in this annular gasbag outside after the inflation, can see out from the picture, it is oval-like setting, this kind of setting can guarantee that wire electrode and circumference aerify the gasbag and fully contact, its structural design still can't avoid the defect that drops easily, and can cause pressure to the vocal cords after this kind of annular gasbag inflation, cause the harm to the vocal cords.
SUMMERY OF THE UTILITY MODEL
To the above technical problem, an object of the utility model is to provide a neural monitoring trachea cannula, this trachea cannula location is effectual, can not take place to drop, has effectively solved trachea cannula and has dropped and lead to the electrode monitoring can't, monitoring failure phenomenon.
In order to achieve the purpose of the invention, the utility model adopts the following technical scheme:
a nerve-monitoring endotracheal tube comprising:
a tracheal tube;
the annular air bag is used for sealing a gap between the tracheal catheter and the tracheal wall of a patient, and is annularly arranged on the outer wall of the tracheal catheter;
the first group of monitoring components are used for monitoring nerve signals of the left vocal cords, each first group of monitoring components comprises at least two monitoring electrodes A, at least parts of the two monitoring electrodes A corresponding to the left vocal cords are arranged on the outer wall of the endotracheal tube, and the two monitoring electrodes A are arranged along the extending direction of the left vocal cords;
the second group of monitoring components are used for monitoring nerve signals of the right vocal cords, the second group of monitoring components comprise at least two monitoring electrodes B, at least parts of the two monitoring electrodes B corresponding to the right vocal cords are arranged on the outer wall of the endotracheal tube, and the two monitoring electrodes B are arranged along the extending direction of the right vocal cords;
the support air bag is used for positioning the tracheal cannula, is arranged on one side of the tracheal catheter facing to the glottis, and is matched with the shape of the glottis after being inflated and expanded;
the first inflating assembly and the second inflating assembly are respectively used for inflating the annular air bag and the supporting air bag.
In some embodiments, the support bladder is an arcuate bladder sized to allow the support bladder to be urged against the glottic position when inflated.
In some embodiments, the first group of monitoring components and the second group of monitoring components are respectively combined on two sides of the tracheal catheter facing to the vocal cords.
In some embodiments, the monitoring electrode a and the monitoring electrode B are made of silver, copper or gold material.
In some embodiments, the monitoring electrode a and the monitoring electrode B extend along the length of the endotracheal tube, and have an exposed section corresponding to the position of the vocal cords and an embedded section offset from the vocal cords relative to the endotracheal tube.
In some embodiments, the first inflation assembly and the second inflation assembly each comprise an inflation tube, an inflation balloon, and an inflation valve. In some embodiments, nylon wires are disposed inside the monitoring electrodes a and B.
In some embodiments, the number of monitoring electrodes a is 2.
In some embodiments, the number of monitoring electrodes B is 2.
In some embodiments, the arcuate bladder has a sector-shaped cross-section.
In some embodiments, the endotracheal tube is a disposable product.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a support sacculus, and this support sacculus adopts imitative glottic structural design, and is the same with glottic structure, plays the effect of supporting trachea cannula, avoids trachea cannula to drop down toward the glottic, leads to electrode and neural contact not to, influences the phenomenon of monitoring result. The problems that the electrode cannot be monitored clinically, monitoring signals are unstable, monitoring fails and the like at present are solved.
Drawings
Fig. 1 and 2 are schematic structural views of an endotracheal tube provided by the present invention;
fig. 3 is a cross-sectional view of the endotracheal tube provided by the present invention;
fig. 4 is a simple diagram of the cooperation between the tracheal cannula and the glottis provided by the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below, and the embodiments described with reference to the drawings are exemplary and are only used for explaining the present invention, and cannot be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "inside", "outside", "left", "right", "front", "back", "etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and operation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "mounted" and "connected" should be interpreted broadly, for example, as mechanical or electrical connections, as well as communications between two elements, either directly or indirectly through intermediary media, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The prior art provides a neural monitoring trachea cannula, and this trachea cannula is put into the trachea through the glottis, and the trachea front side is equipped with annular gasbag, and like this, after the trachea is put into to the intubate, the annular gasbag after aerifing the inflation can seal the clearance between endotracheal tube and patient's trachea wall, avoids oxygen gas leakage to this establishes the passageway.
The utility model discloses based on prior art and combine neural monitoring function to provide an improved trachea cannula, as shown in fig. 1, fig. 2 and fig. 3, this intubate structure includes:
the tracheal tube 1 is used for a ventilation channel, as shown in fig. 4 in detail, when the tracheal tube is placed into the trachea through the glottis 10, the vocal cords on the two sides are located at the throat, the area between the vocal cords is the glottis, the glottis is opened and is in an inverted V shape, and the following description is based on the fact that the glottis is in an open state when the tracheal cannula is placed into the trachea.
An annular air bag 2, as shown in fig. 1, is annularly arranged on the outer wall of the tracheal catheter, is positioned at the front side of the tracheal catheter, and is inflated to seal a gap between the tracheal catheter and the tracheal wall of a patient when the annular air bag enters a glottis position.
A first set of monitoring components for monitoring nerve signals of the left vocal cord, the first set of monitoring components comprising at least two monitoring electrodes a (61, 62), a second set of monitoring components for monitoring nerve signals of the right vocal cord, the second set of monitoring components comprising at least two monitoring electrodes B (63, 64); when a voltage is applied to the laryngeal nerve, or to its vicinity, an electrical impulse is transmitted through the nerve to the relevant set of laryngeal muscles. The electrode on the trachea cannula can detect that the electric pulse enters the related laryngeal muscles; the surgeon can locate nerves during surgery by electrically stimulating various parts of the neck and noting whether a response is detected by a wire electrode contacting the associated larynx, so whether the electrode is in contact with the laryngeal nerve is critical; therefore, in order to ensure that the monitoring electrodes are fully contacted with the vocal cords, at least the parts of the two monitoring electrodes A corresponding to the left vocal cords are arranged on the outer wall of the endotracheal tube, and the two monitoring electrodes A are arranged along the extending direction of the left vocal cords; the parts of the two monitoring electrodes B at least corresponding to the right vocal cords are arranged on the outer wall of the tracheal catheter, and the two monitoring electrodes B are arranged along the extending direction of the right vocal cords; therefore, the contact between the vocal cords and the electrodes is realized, and the contact stimulation is carried out on the recurrent laryngeal nerves to play a monitoring role.
Furthermore, the monitoring electrode a and the monitoring electrode B extend along the length extension direction of the endotracheal tube, the monitoring electrodes are exposed on the outer wall of the endotracheal tube 1, and the monitoring electrodes can contact other tissues of the larynx when contacting with the vocal cords, so that the monitoring electrode a and the monitoring electrode B are designed into an exposed section and an inner block in order to insulate the electrode wires from the other tissues, and the exposed and embedded means that the monitoring electrodes are exposed on the outer wall of the endotracheal tube or hidden on the inner wall of the endotracheal tube relative to the endotracheal tube;
the utility model provides a positioning structure for positioning the tracheal cannula, which takes the phenomenon that the cannula falls down after being inserted into the trachea cannula into consideration; specifically, the utility model provides a support gasbag 3 for fixed support trachea cannula avoids the intubate to drop and makes the electrode contact can not lead to the monitoring failure, support gasbag establish in one side of endotracheal tube towards the glottis, and support gasbag after aerifing the inflation with the shape adaptation of glottis, as shown in figure 2 and as shown in 4, the circumference side that endotracheal tube corresponds the glottis position is not all provided with support gasbag 3, only combine support gasbag in one side towards the glottis, the purpose of so considering lies in, if support the gasbag establish at annular gasbag, can cause the tear damage to the vocal cords of both sides; furthermore, and the utility model provides an gasbag is the inflatable positioning body, therefore it is small and controllable than other positioning bodies, avoids the too big discomfort that arouses of volume, and the usable transform of inflating action of doctor supports the sufficient degree of gasbag to be suitable for not unidimensional glottis, the practicality is extremely strong.
In this embodiment, the supporting airbag is an arc airbag, the size of the arc airbag allows the supporting airbag to prop against the glottis when the supporting airbag is inflated, as shown in fig. 3, the arc airbag is a fan-shaped airbag, the shape and size of the fan-shaped airbag are matched with the shape of the glottis, and according to the structural design of the glottis of a human body, the bionic design is adopted, so that discomfort can not be caused to a patient;
in addition, the first group of monitoring components and the second group of monitoring components are respectively combined on two sides of the tracheal catheter facing to the vocal cords, namely the monitoring electrodes are not in contact with the fan-shaped air bags and are directly combined on the outer wall of the tracheal catheter instead of being arranged on the outer wall of the supporting air bag, so that the monitoring electrodes cannot be pulled by the expanded fan-shaped air bags and are stably combined on the outer wall of the tracheal catheter, and pressure cannot be generated on the vocal cords when nerves are monitored.
Further, the utility model provides a first inflation component and a second inflation component, which are respectively used for inflating the annular air bag and the supporting air bag, wherein the first inflation component and the second inflation component respectively comprise an inflation tube, an inflation ball bag and an inflation valve; specifically, the first inflation assembly comprises an inflation tube 41, an inflation balloon 51 and an inflation valve 81; the first inflation assembly comprises an inflation tube 42, an inflation balloon 52 and an inflation valve 82; the monitoring electrode A and the monitoring motor B are made of silver, so that the conductivity is good, and the phenomena of poor contact with nerves and unstable contact signals cannot occur; the monitoring wire inner core also uses the silver material, guarantees electric conductivity and electric conductivity stability, and monitoring electrode A has the nylon yarn with monitoring motor B, increases the tensile properties of monitoring wire product, guarantees the whole quality performance of product.
In one embodiment of the present invention, the endotracheal tube can be made of plastic material or silica gel material; the rear side of the catheter also has an air connector 9 for connecting a respirator, and the catheter comprises 4 monitoring electrodes which are respectively arranged on the left side and the right side of the catheter.
The trachea cannula provided by the embodiment is a disposable product.
The four monitoring electrodes are respectively connected with the monitor through conductive joints (71, 72, 73 and 74) to play a role in signal transmission.
The utility model also provides an application method of the trachea cannula:
before the trachea cannula is placed into a trachea, the annular air bag and the supporting air bag are in an uninflated state, and the annular air bag is inflated through a first inflation assembly (an inflation valve 81 and an inflation tube 41) after the trachea cannula is inserted, so that the air bag is expanded to play a sealing role; then, the second inflation assembly (the inflation valve 82 and the inflation tube 42) inflates air into the support air bag, so that the support air bag expands to play a role in supporting the tracheal cannula, the phenomenon that the electrode wire is not contacted with nerves due to dropping of the tracheal cannula, so that poor monitoring is caused, judgment of a surgeon is influenced, and the support effect is detailed as shown in fig. 4.
Claims (10)
1. A nerve-monitoring endotracheal tube comprising:
a tracheal tube (1);
the annular air bag (2) is used for sealing a gap between the tracheal catheter and the tracheal wall of a patient, and is annularly arranged on the outer wall of the tracheal catheter;
the first group of monitoring components are used for monitoring nerve signals of the left vocal cords, each first group of monitoring components comprises at least two monitoring electrodes A, at least parts of the two monitoring electrodes A corresponding to the left vocal cords are arranged on the outer wall of the endotracheal tube, and the two monitoring electrodes A are arranged along the extending direction of the left vocal cords;
the second group of monitoring components are used for monitoring nerve signals of the right vocal cords, the second group of monitoring components comprise at least two monitoring electrodes B, at least parts of the two monitoring electrodes B corresponding to the right vocal cords are arranged on the outer wall of the endotracheal tube, and the two monitoring electrodes B are arranged along the extending direction of the right vocal cords;
the support air bag (3) is used for positioning the tracheal cannula, is arranged on one side of the tracheal catheter facing to the glottis, and is matched with the shape of the glottis after being inflated;
the first inflating assembly and the second inflating assembly are respectively used for inflating the annular air bag and the supporting air bag.
2. The neuromonitoring endotracheal tube of claim 1 wherein the support cuff is an arcuate cuff sized to abut the glottic position when inflated.
3. The neuromonitoring endotracheal tube according to claim 1, wherein the first and second sets of monitoring elements are respectively incorporated on opposite sides of the endotracheal tube facing the vocal cords.
4. The nerve-monitoring endotracheal tube according to claim 1, characterized in that the monitoring electrode a and the monitoring electrode B are made of silver, copper or gold material.
5. The nerve-monitoring endotracheal tube according to claim 1, characterized in that the monitoring electrodes a and B extend along the length extension direction of the endotracheal tube and have an exposed section corresponding to the position of the vocal cords and an embedded section offset from the vocal cords with respect to the endotracheal tube.
6. The neuromonitoring endotracheal tube of claim 1 wherein the first and second inflation assemblies each include an inflation tube, an inflation balloon, and an inflation valve.
7. The nerve-monitoring endotracheal tube according to claim 1, characterized in that nylon wires are disposed inside the monitoring electrodes a and B.
8. The neuromonitoring endotracheal tube according to claim 1, characterized in that the number of monitoring electrodes a is 2 and/or the number of monitoring electrodes B is 2.
9. The neuromonitoring endotracheal tube of claim 2 wherein the arcuate cuff is fan-shaped in cross-section.
10. The nerve-monitoring endotracheal tube according to any one of claims 1 to 9, characterized in that the endotracheal tube is a disposable product.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921223570.1U CN210813283U (en) | 2019-07-31 | 2019-07-31 | Neural monitoring trachea cannula |
| PCT/CN2020/095767 WO2021017662A1 (en) | 2019-07-31 | 2020-06-12 | Nerve monitoring endotracheal cannula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921223570.1U CN210813283U (en) | 2019-07-31 | 2019-07-31 | Neural monitoring trachea cannula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210813283U true CN210813283U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921223570.1U Active CN210813283U (en) | 2019-07-31 | 2019-07-31 | Neural monitoring trachea cannula |
Country Status (2)
| Country | Link |
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| CN (1) | CN210813283U (en) |
| WO (1) | WO2021017662A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070074728A1 (en) * | 2005-05-13 | 2007-04-05 | Rea James L | Endotracheal electrode and optical positioning device |
| US8886280B2 (en) * | 2007-01-23 | 2014-11-11 | The Magstim Company Limited | Nerve monitoring device |
| US20100249639A1 (en) * | 2009-01-20 | 2010-09-30 | Samir Bhatt | Airway management devices, endoscopic conduits, surgical kits, and methods of using the same |
| WO2015080721A1 (en) * | 2013-11-27 | 2015-06-04 | Medtronic Xomed, Inc. | Endobronchial tube apparatus |
| CN204033972U (en) * | 2014-08-11 | 2014-12-24 | 中国人民解放军第四军医大学 | The tracheal intubation that a kind of electrode is controlled |
-
2019
- 2019-07-31 CN CN201921223570.1U patent/CN210813283U/en active Active
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2020
- 2020-06-12 WO PCT/CN2020/095767 patent/WO2021017662A1/en active Application Filing
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|---|---|
| WO2021017662A1 (en) | 2021-02-04 |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | "change of name, title or address" |
Address after: 317317 No.8 Youyi Road, Baita block, Xianju Economic Development Zone, Baita Town, Xianju County, Taizhou City, Zhejiang Province Patentee after: Zhejiang Youyi Medical Equipment Co., Ltd Address before: No.8 Youyi Road, Baita block, Xianju Economic Development Zone, Baita Town, Xianju County, Taizhou City, Zhejiang Province, 317300 Patentee before: ZHEJIANG UE MEDICAL Corp. |
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| CP03 | "change of name, title or address" |