Oropharynx special-shaped tracheal catheter
By designing the oral and pharyngeal tracheal ducts with a peaked mouth and multi -functional channels, the problem of airway obstruction caused by obese patients during anesthesia during anesthesia during anesthesia, and achieved more stable ventilation and more accurate CO2 monitoring.
Patent Information
- Application Number
- CN202420760068.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-12
AI Technical Summary
During anesthesia, obese patients suffer from airway obstruction due to a tongue falling back. Existing tools such as nasal catheter, face mask, laryngeal mask and nasopharyngeal ventricular have problems such as airway obstruction, reflux and aspiration, nasal mucosa damage and nosebleeding.
Designed a kind of oral pharyngeal dexterous tracheal ducts with a peaked mouth structure and multi -functional channel, including operating channels, monitoring channels, oxygen supply channels, and secretions channels. Things suck.
Effectively prevent the airway obstruction caused by the falling of the tongue, avoid the invasion of nasopharyngeal ventilation, achieve more stable ventilation and smooth ventilation, reduce the damage to patients by medical operations, and improve the accuracy of the monitoring accuracy of CO2 at the end of exhalation. Essence
Smart Images
Figure CN222399851U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to an oropharyngeal special-shaped tracheal tube. Background Art
[0002] The most important aspect of anesthesia is airway management, and the core of airway management is ventilation and oxygenation. Ventilation involves establishing an airway, and oxygenation requires unobstructed ventilation. Therefore, maintaining unobstructed airway ventilation and timely monitoring and early warning of airway obstruction are crucial for maintaining oxygenation and vital signs. In particular, during anesthesia, fat accumulation and increased pulmonary vascular capacity in obese individuals reduce lung compliance and increase airway resistance. Even mild sedation can cause complete airway collapse and / or respiratory arrest in these patients.
[0003] Currently, nasal cannulae, face masks, laryngeal masks, and nasopharyngeal airways are the primary tools for clinical airway management. Among them, nasal cannulae and face masks cannot prevent airway obstruction caused by tongue retraction, laryngeal mask insertion is prone to reflux aspiration and throat injury, and nasopharyngeal airways carry the risk of damaging the nasal mucosa and causing nosebleeds, causing discomfort to patients. Utility Model Content
[0004] In order to solve the above technical problems, the utility model discloses an oropharyngeal special-shaped endotracheal tube, which effectively prevents airway obstruction caused by tongue prolapse in patients under anesthesia, establishes an oropharyngeal airway for the patient, and effectively avoids encroaching on the nasopharyngeal airway.
[0005] The specific technical solutions of the utility model are as follows:
[0006] An oropharyngeal special-shaped endotracheal tube, comprising:
[0007] A main body tube has an operating channel inside, and a flange is provided at one end of the main body tube. In the direction in which the main body tube extends away from the flange, the tube wall on one side of the main body tube used to contact the human tongue is longer than the tube wall on the opposite side, so as to form a duckbill opening at the end of the main body tube away from the flange.
[0008] The duckbill opening provided in the present application can effectively open the oropharyngeal airway while avoiding encroaching on the nasopharyngeal airway and effectively maintaining the patency of the nasal / oral airway, thereby better assisting tracheal intubation and assisting in solving the clinical problem of bronchoscope airway occupancy, thereby effectively preventing airway obstruction and avoiding damage to the human body caused by medical operating equipment.
[0009] Preferably, a monitoring channel is provided in the wall of the main tube on the opposite side of the main tube that contacts the tongue of the human body;
[0010] Wherein, the sampling inlet of the monitoring channel is located on the inner wall of the operating channel; or
[0011] The monitoring channel passes through the main body tube along the extension direction of the main body tube.
[0012] This application realizes the monitoring of the patient's end-tidal CO2 during anesthesia. The monitoring channel goes deep into the oropharynx to sample the end-tidal CO2. Compared with the nasal catheter sampling of end-tidal CO2, it can achieve more accurate and stable monitoring effects. Compared with the patients who use masks and laryngeal masks for end-tidal CO2 sampling, it can make the operation more convenient for medical staff and also make the patient's medical experience more comfortable.
[0013] Preferably, the duckbill mouth is provided with a shielding slope, and the monitoring channel runs through the shielding slope.
[0014] Similar to the sampling inlet of the monitoring channel being located on the inner wall of the operating channel, this arrangement is conducive to sufficient sampling of end-tidal CO2.
[0015] Preferably, the sampling inlet of the monitoring channel is composed of a plurality of micropores.
[0016] Several micropores can reduce the impact force of the gas and also have a filtering effect to prevent the end-tidal CO2 sample from mixing with secretions and other foreign matter.
[0017] Preferably, an oxygen supply channel is provided in the tube wall of the main tube on the side that contacts the human tongue, and the oxygen supply channel passes through the main tube along the extension direction of the main tube.
[0018] The oxygen supply channel can realize direct oxygen supply to the oropharynx, especially ensure sufficient oxygen supply to difficult airways, and reduce the anesthesia risk caused by airway obstruction.
[0019] Preferably, a drainage groove for connecting to the oxygen supply channel is provided on the outer side of the tube wall of the main tube near the duck tongue mouth, so as to form an oxygen permeation channel between the drainage groove and the human tongue.
[0020] During the use of the present application, during the oxygen supply process, oxygen can flow along the oxygen channel formed by the drainage groove to achieve precise oxygen supply to the supraglottic port and pharynx, and the oxygen outlet of the oxygen supply channel is hidden in the oxygen channel, thereby more effectively ensuring the patency of the oxygen supply channel and avoiding blockage by foreign matter.
[0021] Preferably, the oxygen outlet of the oxygen supply channel is composed of a plurality of micropores.
[0022] Several micropores can reduce the impact force of gas and also have a filtering effect, achieving safer and more comfortable oxygen supply.
[0023] Preferably, the tube wall of the main tube has at least one secretion channel arranged along the extension direction of the main tube, and any secretion channel is connected to the oral cavity through at least one suction port.
[0024] The secretion channel can fully suck oral secretions and effectively avoid backflow and tube blockage.
[0025] Preferably, the at least one suction port includes suction port 1 located at one end of the main tube close to the duckbill opening and suction port 2 located in the middle of the main tube.
[0026] The suction port 1 and the suction port 2 suck oral secretions in a front-to-back order, and the latter supplements the suction action of the former, thereby more effectively avoiding backflow and tube blockage.
[0027] Preferably, a strap is provided on the flange.
[0028] The endotracheal tube can be conveniently fixed to the patient's head through a strap.
[0029] Compared with the existing technology, the utility model has a simple structure, easy operation, stability and reliability. It can establish an oropharyngeal airway for patients under anesthesia while effectively avoiding encroaching on the nasopharyngeal airway; it can effectively solve the airway safety management of non-intubated anesthesia patients outside the operating room; it can also effectively assist in sufficient oxygen supply and intubation during the anesthesia induction period in the operating room; and it can also effectively suction oral secretions. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 This is a structural diagram of an embodiment of the utility model from a first perspective;
[0031] Figure 2 This is a structural diagram of the second viewing angle of an embodiment of the utility model;
[0032] Figure 3 for Figure 1 The enlarged schematic diagram of point C in the middle;
[0033] Figure 4 This is a structural diagram of the third perspective of the embodiment of the utility model;
[0034] Figure 5 for Figure 4 Cross-sectional view at AA in the middle;
[0035] Figure 6 for Figure 4 Cross-sectional view at the middle BB.
[0036] In the figure: 1-main tube; 2-duckbill mouth; 3-wing; 4-suction port 2; 5-suction port 1; 6-drainage groove; 7-shielding slope; 8-sampling inlet; 9-secretion channel; 10-oxygen supply channel; 11-monitoring channel; 12-operation channel. DETAILED DESCRIPTION
[0037] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.
[0038] This embodiment discloses an oropharyngeal special-shaped endotracheal tube, which is used to establish an airway through the mouth of an anesthetized patient to prevent airway obstruction caused by tongue prolapse.
[0039] like Figure 1 As shown, the device includes a main body tube 1 with an operating channel 12 inside, and a flange 3 is provided at one end of the main body tube 1. In the direction in which the main body tube 1 extends away from the flange 3, the tube wall on one side of the main body tube 1 used to contact the human tongue is longer than the tube wall on the opposite side, so as to form a duckbill mouth 2 at the end of the main body tube 1 away from the flange 3. In this embodiment, the shape of the main body tube 1 is configured to adapt to the curved structure of the human oral cavity and oropharynx. The operating channel 12 inside the main body tube 1 passes through the main body tube 1 front and back along the extension direction of the main body tube 1, and is used for the insertion of operating instruments. In this embodiment, one end of the main body tube 1 is the extraoral end, and the other end is the proximal oropharyngeal end. During use, the proximal oropharyngeal end is inserted into the patient's mouth and into the oropharynx, while the extraoral end remains outside the body. That is, the flange 3 is located outside the patient's body, and the duckbill opening 2 is located near the patient's oropharynx. This facilitates instrument insertion and facilitates stable and reliable airway management using the flange 3. In other words, the flange 3 prevents the patient from swallowing or biting while also providing an external connection for airway management. Furthermore, a strap is provided on the flange 3, which allows the endotracheal tube to be easily secured to the patient's head, thereby ensuring greater stability during use.
[0040] In this embodiment, the proximal oropharyngeal end of the main tube 1 is in the shape of a duck tongue opening 2 that is short at the top and long at the bottom, that is, after the proximal oropharyngeal end of the main tube 1 is inserted into the patient's mouth to the oropharynx, the tube wall facing the posterior root of the human tongue is longer than the tube wall facing away from the posterior root of the human tongue, which is more conducive to the device pressing the tongue, thereby better avoiding airway obstruction caused by the tongue falling back.
[0041] like Figure 4 and Figure 6As shown, in order to better use this embodiment, a monitoring channel 11 is provided in the tube wall of the main tube 1 on the side away from the back root of the human tongue, that is, after the main tube 1 is inserted into the patient's mouth to the oropharynx, the monitoring channel 11 is located on the upper side of the main tube 1. In a technical solution of this embodiment, the monitoring channel 11 is arranged along the extension direction of the main tube 1, and its sampling inlet 8 extends to the oral wall of the duck tongue mouth 2, while the sampling outlet extends to the outer end of the main tube 1 and is located on the flange 3. During specific use, the sampling outlet of the monitoring channel 11 is connected to an external monitoring device, and the monitoring channel 11 can penetrate into the patient's oropharynx to achieve end-tidal CO2 sampling. Compared with end-tidal CO2 sampling by nasal catheter, it can achieve more accurate and stable monitoring effects. Compared with patients who use masks and laryngeal masks for end-tidal CO2 sampling, it can make medical staff more convenient to operate, and it can also make patients feel more comfortable when seeking medical treatment, thereby more timely and accurately warning of insufficient ventilation.
[0042] In addition, the sampling inlet 8 of the monitoring channel 11 is composed of a number of micropores; in the specific setting, the monitoring channel 11 may include multiple small channels, and the multiple small channels merge into a large channel at the outer end of the main tube 1, and the inlet ends of the multiple small channels form the sampling inlet 8. Of course, the monitoring channel 11 can also be an integral large channel, which only forms a sampling inlet 8 composed of multiple micropores at the inlet end. In this embodiment, the sampling inlet 8 of the monitoring channel 11 is configured as a multi-microporous shower head, which can effectively prevent the end-tidal CO2 sampling from mixing with foreign matter such as secretions. Furthermore, the outer surface to the inner surface of the upper mouth wall of the duckbill mouth 2 of this embodiment is inclined from the proximal oropharyngeal end of the main tube 1 to the inner end of the mouth, so that the upper mouth wall of the duckbill mouth 2 forms a shielding slope 7, and the sampling inlet 8 of the monitoring channel 11 is hidden in the shielding slope 7. Thus, as Figure 1 and Figure 3 As shown, when the sampling inlet 8 of the monitoring channel 11 is located on the shielding slope 7, it can effectively prevent the operating instrument from interfering with the sampling inlet 8, which is conducive to sufficient sampling of end-tidal CO2. At the same time, the shielding of the shielding slope 7 can also effectively prevent oral secretions from flowing back and clogging the tube.
[0043] Since the shielding slope 7 is a part of the end surface of the duck tongue mouth 2, there is a risk of oral secretions flowing back and blocking the tube during actual use. Therefore, in some other technical solutions of this embodiment, since the sampling inlet 8 of the monitoring channel 11 is located on the upper side of the inner wall of the operating channel 12, the risk of secretions flowing back is further reduced. At this time, it is also possible to choose not to form the shielding slope 7 on the duck tongue mouth 2, and the structure is simpler.
[0044] In this embodiment, an oxygen supply channel 10 is provided in the tube wall of the main tube 1 on the side that contacts the human tongue, and the oxygen supply channel 10 passes through the main tube 1 along the extension direction of the main tube 1. An oxygen supply channel 10 is provided in the tube wall of the main tube 1 on the side facing the back root of the human tongue, that is, after the main tube 1 is inserted into the patient's mouth to the oropharynx, the oxygen supply channel 10 is located on the lower side of the main tube 1. Similarly, the oxygen supply channel 10 is also distributed along the extension direction of the main tube 1, and its oxygen outlet is located at the proximal oropharyngeal end of the main tube 1, and the oxygen inlet is located at the outer end of the main tube 1 on the flange 3. Thus, a double-cavity tool is formed by configuring the monitoring channel 11 and the oxygen supply channel 10. During specific use, the oxygen inlet of the oxygen supply channel 10 is connected to an external oxygen supply device, and oxygen can be directly supplied to the patient's oropharynx during the anesthesia induction period through the oxygen supply channel 10, especially to ensure sufficient oxygen supply to difficult airways and reduce the anesthesia risk caused by airway obstruction. Under normal circumstances, this embodiment can be used in conjunction with a nasal cannula to achieve combined oxygen supply, thereby providing sufficient oxygen to patients with spontaneous breathing during non-intubated general anesthesia and effectively reducing the occurrence of hypoxemia. Studies have found that this reduces the risk of hypoxemia by approximately 14% compared to using a nasal cannula alone for oxygen supply.
[0045] Similarly, the oxygen outlet of the oxygen supply channel 10 is also composed of a plurality of micropores, and its configuration can be similar to that of the sampling inlet 8 of the monitoring channel 11. By configuring the oxygen outlet of the oxygen supply channel 10 in a multi-micropore shower shape, it can reduce the impact force of the gas and provide a filtering effect, effectively achieving distributed and comfortable oxygen supply while also effectively preventing direct strong impact force from the gas on the glottis and pharynx, which could cause damage.
[0046] like Figure 2 、 Figure 4 、 Figure 6 As shown, in this embodiment, a drainage groove 6 for connecting to the oxygen supply channel 10 is provided on the outer side of the tube wall of the main tube 1 near the end of the duck tongue 2, so as to form an oxygen passage between the drainage groove 6 and the human tongue. Specifically, a drainage groove 6 is provided on the outer surface of the tube wall of the proximal oropharyngeal end of the main tube 1 facing the posterior root of the human tongue, and the drainage groove 6 is connected to the oxygen supply channel 10, that is, the oxygen outlet of the oxygen supply channel 10 is connected to the drainage groove 6. As a preferred embodiment, the drainage groove 6 extends from the proximal oropharyngeal end of the main tube 1 to above the human glottis, so that its outlet directly faces the patient's oropharynx and tracheal inlet, so as to achieve precise oxygen supply.
[0047] Since an operating instrument inserted from the operating channel 12 during use may touch the oxygen outlet of the oxygen supply channel 10 and affect oxygen delivery, in this embodiment, the oxygen outlet of the oxygen supply channel 10 is hidden in the drainage groove 6, and the drainage groove 6 is located on the outside of the main tube 1. This effectively ensures that the oxygen supply channel 10 is unobstructed and also effectively prevents damage to the patient caused by medical staff operating the instrument.
[0048] Therefore, this embodiment effectively prevents airway obstruction caused by tongue prolapse through physical safety protection, effectively solves the safe management of the airway of non-intubated anesthesia patients outside the operating room, and effectively assists in sufficient oxygen supply and intubation during the anesthesia induction period in the operating room.
[0049] like Figure 4 and Figure 5 As shown, to better utilize this embodiment, the wall of the main tube 1 includes at least one secretion channel 9 arranged along the extension direction of the main tube 1. Any secretion channel 9 is connected to the oral cavity through at least one suction port. Thus, the secretion channel 9, in conjunction with the monitoring channel 11 and the oxygen supply channel 10, forms a three-chamber tool. It should be noted that in other technical solutions of this embodiment, a two-chamber tool can be formed by utilizing the secretion channel 9 and the monitoring channel 11, or by utilizing the secretion channel 9 and the oxygen supply channel 10, depending on the actual application scenario. Specifically, a secretion channel 9 is provided within any side wall of the main tube 1. The secretion channel 9 extends along the extension direction of the main tube 1, and its outlet end extends outward to the outer end of the main tube 1 located on the flange 3. That is, in this embodiment, the wall of the main tube 1 can be provided with one, two, three, or more secretion channels 9, each of which can have one, two, three, or more suction ports. Furthermore, in actual operation, it was verified that a secretion channel 9 was provided, and the secretion channel 9 was provided with two suction ports, which could well realize the secretion suction. Specifically, this embodiment provides a secretion channel 9, which is located between the monitoring channel 11 and the oxygen supply channel 10. The secretion channel 9 is provided with two suction ports, namely, suction port 1 5 located at one end of the main tube 1 near the duckbill opening 2 and suction port 2 4 located in the middle of the main tube 1. During specific use, the secretion channel 9 is connected to an external device, and the secretions in the patient's mouth are sucked out by suction, thereby avoiding the uncontrollable influence of the secretions. It can be seen that oral secretions can be sucked into the secretion channel 9 through the suction port 2 4 at the middle end and the suction port 1 5 at the front end, and then discharged from the secretion channel 9, effectively avoiding backflow and tube blockage.
[0050] As can be seen, this embodiment utilizes the outlets or inlets of the flange 3 to achieve airway management. Thus, this embodiment can be used to form a single-lumen to multi-lumen airway management tool. Because it can meet the functions of airway management, such as ventilation, ventilation monitoring, oxygen supply, and secretion aspiration, it can meet the clinical needs of different medical scenarios and is suitable for flexible functional selection in multiple medical scenarios. Furthermore, it can be seen that when combining other medical methods according to the different medical scenarios of specific patients, at least one of these functions can be flexibly selected and utilized.
[0051] The above are merely preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be construed as limiting the present invention. The scope of protection of the present invention shall be determined by the scope defined in the claims. Persons skilled in the art will appreciate that improvements and modifications may be made without departing from the spirit and scope of the present invention, and such improvements and modifications shall also be considered within the scope of protection of the present invention.
Claims
1. An oropharyngeal tracheal tube, characterized in that: include: A main body tube has an operating channel inside, and a flange is provided at one end of the main body tube. In the direction in which the main body tube extends away from the flange, the tube wall on one side of the main body tube used to contact the human tongue is longer than the tube wall on the opposite side, so as to form a duck tongue opening at the end of the main body tube away from the flange.
2. The oropharyngeal tracheal tube according to claim 1, characterized in that: The main tube is used to contact the human tongue and has a monitoring channel in its opposite wall. Wherein, the sampling inlet of the monitoring channel is located on the inner wall of the operation channel; or the monitoring channel penetrates the main body tube along the extension direction of the main body tube.
3. The oropharyngeal tracheal tube according to claim 2, characterized in that: The duck tongue is provided with a shielding inclined surface, and the monitoring channel runs through the shielding inclined surface.
4. The oropharyngeal tracheal tube according to claim 2, characterized in that: The sampling inlet of the monitoring channel is composed of a plurality of micropores.
5. The oropharyngeal tracheal tube according to claim 1, characterized in that: An oxygen supply channel is arranged in the tube wall of the main tube on one side of the main tube that contacts the tongue of the human body. The oxygen supply channel penetrates the main tube along the extension direction of the main tube.
6. An oropharyngeal special-shaped endotracheal tube according to claim 1 or 5, characterized in that: A drainage groove for connecting the oxygen supply channel is provided on the outer side of the tube wall of the main tube near the duck tongue mouth, so as to form an oxygen permeation channel between the drainage groove and the human tongue.
7. The oropharyngeal tracheal tube according to claim 5, characterized in that: The oxygen outlet of the oxygen supply channel is composed of a plurality of micropores.
8. An oropharyngeal shaped endotracheal tube according to any one of claims 1, 2, 4, 5, and 7, characterized in that: The tube wall of the main tube is provided with at least one secretion channel arranged along the extension direction of the main tube, and any secretion channel is connected with the oral cavity through at least one suction port.
9. The oropharyngeal tracheal tube according to claim 8, characterized in that: The at least one suction port comprises a suction port 1 located at one end of the main pipe close to the duckbill opening and a suction port 2 located in the middle of the main pipe.
10. The oropharyngeal shaped endotracheal tube according to claim 1, characterized in that: The flange is provided with a binding belt.