46 results about "Epiglottis" patented technology

The invention discloses an integrated front-end driving, active steering and visual digestive tract catheterization system, which belongs to the field of medical apparatus and instruments, and comprises a guide arm comprising a pull wire and an elastic arm, the guide arm is provided with a first end and a second end deviating from each other, and one end of the pull wire is fixedly connected to the first end; the lens is arranged at the first end; the driving part comprises a first annular balloon, a second annular balloon and a cylindrical balloon, and the first annular balloon and the second annular balloon are fixedly connected to the two sides of the cylindrical balloon in the axial direction respectively; when the annular balloon is full, the outer wall expands in the radial direction; when the cylindrical balloon is full, the outer wall extends in the axial direction; the fixing sleeve comprises a flexible sleeve and a connecting base which are fixedly connected, the connecting base is connected with the second end of the guide arm and the first annular balloon, and the end, deviating from the connecting base, of the flexible sleeve penetrates through the driving part and extends in the direction deviating from the guide arm. Through the arrangement, the front end of the nasointestinal tube can be guided and driven at the epiglottis of the nasal cavity and the upper and lower digestive tracts.

The invention relates to a gastric juice reflux prediction device for a patient with mechanical ventilation, and belongs to the technical field of medical equipment. The gastric juice reflux prediction device comprises a first pH value sensor used for measuring the pH value of the oral cavity or epiglottis area of a patient; the second pH value sensor is used for measuring the pH value of the area where the dilation air bag on the trachea cannula is located; the analysis unit is used for receiving the pH value collected by the pH value sensor and analyzing and processing the pH value, and the analysis unit is configured to determine the change condition of the pH value of the oral cavity or epiglottis area of the patient along with time according to the pH value provided by the first pH value sensor; according to the pH value provided by the second pH value sensor, the change condition of the pH value of the upper end of the dilation air bag along with time is determined, and the dilation air bag on the trachea cannula can be arranged in the trachea of the patient and makes contact with the trachea wall.

The invention relates to the field of food with dysphagia, in particular to a method for constructing a swallowing characteristic evaluation model of food with dysphagia. Comprising the following steps: firstly, determining swallowing characteristic indexes such as oral transfer time, epiglottis time, tensile length, oropharyngeal residual quantity, swallowing grade, residual volume of needle tubing, sensory swallowing evaluation score and the like of food with dysphagia; the physical property indexes such as yield stress, consistency coefficient, flow index, zero shear viscosity, apparent viscosity, friction coefficient, density and surface tension in rheological properties are subjected to correlation analysis on the swallowing property indexes and the physical property indexes, and then multiple linear regression analysis is carried out; according to the method, a physical characteristic index-based swallowing characteristic evaluation model is established, a predicted value obtained by the evaluation model is compared with a measured value for verification, and the model has very high fitting precision and can better describe the swallowing characteristics of food with dysphagia.

The utility model discloses an I-shaped hypopharyngeal retaining laryngoscope. The laryngoscope comprises a handle part, a main body part, an endoscope tube and a suction tube, the main body part comprises an upper plate body, a lower plate body and a connecting plate, the upper plate body and the lower plate body are oppositely arranged up and down, the connecting plate is vertically connected between the upper plate body and the lower plate body to form the I-shaped main body part, and the rear end of the upper plate body extends backwards to exceed the lower plate body and bends and tilts upwards; a handle part is fixedly arranged on the upper side of the upper plate body, an endoscope tube and a suction tube are fixedly arranged on the lower side of the upper plate body, and the endoscope tube and the suction tube both extend along the upper plate body and bend and tilt upwards as well. According to the scheme, the I-shaped hypopharynx supporting laryngoscope can easily expose the hypopharynx, the tongue root, the epiglottis and other parts, the special endoscope channel can release the operation space on the two sides of the I shape to the maximum extent, and therefore two mechanical arms of a surgical robot can stretch into a surgical cavity at the same time to conduct operation.

The invention discloses a tracheal intubation path feature extraction method and device based on AI analysis, and relates to the technical field of intelligent medical robotics.The method comprises the steps that an optical flow method is used for preprocessing an input matrix, an epiglottis deformation displacement field is calculated, the epiglottis deformation displacement field is imported into ANSYSMechical for finite element analysis, and a three-dimensional tracheal path topological graph is obtained; carrying out fluid-solid mechanical joint simulation on the three-dimensional air pipe path topological graph by adopting a COMSOLMultiphysics multi-physics coupling solver, so as to obtain a lifting parameter; an impedance control instruction is generated according to the lifting parameters, and the cooperative mechanical arm is driven to execute the impedance control instruction; and on the basis of the multi-modal data of the laryngoscope after the impedance control instruction is executed, updating the material parameters of ANSYSMechical through a strategy gradient algorithm. According to the method, the problem that optimization of closed-loop feedback driving parameters is missing is solved through a target function gradient direction and step size zooming mechanism.

The multi-channel laryngeal mask comprises a tube body and a mask bag connected to the tube body, and a main ventilation channel and a temperature detection channel are arranged in the tube body at intervals; a ventilation opening and a temperature detection opening are formed in the mask bag. In the using process, the mask is placed in the upper respiratory tract of a patient, the mask bag is attached to the upper end of the epiglottis of the patient to achieve sealing, and the main ventilation channel on the tube body is connected with an air source to achieve ventilation operation on the patient. The esophagus of the patient can be connected with the atmosphere through the temperature detection channel, and adverse reactions such as gaseous distention in the ventilation process are effectively prevented. Meanwhile, the body temperature detection line can extend into the temperature detection channel, partially extends out through the ventilation opening and then is inserted into the esophagus of the patient, so that relevant operations such as body temperature detection are carried out. And the imbedded instrument does not need to be frequently inserted, pulled and replaced, so that the injury to a patient caused by repeatedly switching the imbedded instrument in an operation process can be effectively avoided. In addition, the operation complexity is reduced, and the operation convenience and the operation efficiency are improved.

An airway device includes an outertube and a scope channel partially enclosed by the outertube. An intraluminal space in the outertube, not occupied by the scope channel, provides a passageway for air flow to the patient. An esophageal cuff is disposed distally on the scope channel. When inflated, the esophageal cuff secures the airway device in the proximal esophagus of the patient and helps to prevent gastric reflux by mechanically blocking gastric content from entering into the larynx. An inflatable bladder is attached at an anterior surface of the scope channel between the esophageal cuff and a distal opening of the outertube. When inflated, the bladder forms a tubular ring that pushes against the epiglottis and / or other soft tissue towards a wall of the hypopharynx to produce an unhindered air passage into the patient's trachea.

The invention provides a separable epiglottis traction device for hard laryngoscopy, and relates to the technical field of medical instruments. The separable epiglottis traction device for hard laryngoscopy comprises a handle, a programmable control displayer is arranged on the upper end face of the handle, a connecting piece is fixedly connected to the lower end of the handle, a connecting base is arranged at the lower end of the connecting piece, and a connecting bent pipe is fixedly connected to the lower end face of the connecting base. The end, away from the connecting base, of the connecting bent pipe is fixedly connected with a throat-entering bent pipe, a traction structure is arranged in the throat-entering bent pipe and comprises an arc-shaped clamping plate, and a groove is formed in the end, away from the connecting base, of the arc-shaped clamping plate. A second micro gear motor drives a driving rod to rotate, the driving rod drives an arc-shaped clamping block to rotate, so that the arc-shaped clamping block and the front end of an arc-shaped clamping plate are unfolded, then the second micro gear motor is controlled to be started in the reverse direction to clamp and support the epiglottis, and the epiglottis is conveniently clamped and pulled.

The invention relates to the technical field of gastric lavage devices, in particular to a catheter nursing assembly for gastric lavage of a critical food poisoning patient, which comprises a stomach tube with an input port at one end and an output port at the other end and can be inserted from an oral cavity or a nasal cavity to reach the stomach of a human body through an esophagus, an expansion film is arranged on at least part of the outer wall, corresponding to an esophageal area below the epiglottis of a human body, of the stomach tube, and after the stomach tube is placed in a proper position of the human body, the expansion film is tightly attached to the inner wall of the esophagus by inflating an expandable space between the expansion film and the outer wall of the stomach tube, so that the esophageal area is expanded. Therefore, sealing between the outer wall of the stomach tube and the inner wall of the esophagus is achieved, vomit of a human body is prevented from flowing back from a gap between the outer wall of the stomach tube and the inner wall of the esophagus during gastric lavage and is prevented from being sucked into the trachea by mistake, and the vomit can be prevented from flowing out from the gap between the inner wall of the esophagus and the outer wall of the stomach tube in the gastric lavage process. Therefore, the risk that vomitus is mistakenly inhaled by a human body when passing through the trachea is avoided.

The invention discloses a non-exposed airway instillation administration method for mouse lung specific administration, which comprises the following steps of: 1, preparing different types of drugs to be administered, namely a hydrophilic drug, a hydrophobic drug and a cellular drug; 2, the mouse is placed in a matched anesthesia device, and anesthesia treatment is conducted on the mouse; then the anesthetized mouse is placed on a matched hanging device, and the body of the mouse naturally droops; 3, the tongue of the mouse is pulled out through bent tweezers until the mouse feels resistance, and the action can open the epiglottis and expose the airway; 4, applying a medicine to the root of the tongue by using a pipettor, and covering the nasal cavity of the mouse by using the finger wearing the glove; meanwhile, the tongue of the mouse is maintained to extend outwards and the nasal cavity is covered for 10 breaths, and administration is completed; compared with the common lung tissue drug delivery technology at present, the non-exposed airway instillation drug delivery method provided by the invention has remarkable comprehensive advantages, and low-cost, non-invasive and multi-time mouse lung tissue specific drug delivery of cell / non-cell drugs can be realized.

This invention relates to a highly active effective fraction of the Epiglottis-Clearing Decoction and its application in the preparation of antitussive drug compositions, belonging to the field of traditional Chinese medicine extract technology. The effective fraction contains hydroxysaffron yellow A, paeoniflorin, naringin, and neohesperidin, with the total content of these four components not less than 20% of the total mass of the effective fraction. The effective fraction of this invention is prepared by purification with macroporous resin. Compared with the freeze-dried powder of the traditional Epiglottis-Clearing Decoction, the total content of the four active ingredients is increased from 3.32% to 20.87%, achieving a more than 6-fold high-efficiency enrichment. Animal pharmacodynamic experiments show that the antitussive effect of a low dose (275.5 mg / kg) of this effective fraction is comparable to that of the freeze-dried powder of the original decoction (1928 mg / kg), reducing the dosage to about 1 / 7 of the original formula, demonstrating a significant "synergistic effect with reduced dosage" technical effect. The effective active ingredients provided by this invention have a clear content and stable quality, and can be made into modern preparations such as tablets, capsules or granules, solving the problems of large volume, inaccurate dosage and poor patient compliance of traditional decoctions.

A simulated airway for training and practicing medical procedures has an upper jaw having simulated teeth, a nasal passage, a tongue, an epiglottis, a larynx, a trachea, an esophagus, and vocal cords. Portions of the airway are reinforced with fabric. A method of making a human airway model for simulation of medical procedures includes sculpting a core for a mold from a resin material, depositing a layer of clay on the core, and placing the core in a mold. The layer of clay is removed and a polymer is injected into the mold.

This product is a lip piece for nasal breathing during sleep. Traditionally, mouthpieces are worn between the upper and lower teeth inside the mouth, but this lip piece is placed between the upper and lower gums and lips, covering the entire lip, and has a slightly elongated ring shape. It utilizes the principle that even ordinary people can achieve nasal and diaphragmatic breathing by opening their mouths wide like singers. One piece can be fitted to set two sizes, slightly elongated vertically and slightly horizontally. This allows for adjustments to the size of the person's mouth and jaw closure, adjustment of the amount of air, and multi-purpose use such as daytime fitting practice or nighttime sleep use. The material is synthetic resin, and you can choose between a harder (plastic) and a softer (elastomer) version. When this product is worn on the lips, the larynx opens, ensuring an open airway during sleep, allowing for smooth nasal breathing, and preventing snoring and sleep apnea. Furthermore, since it prevents mouth breathing even when the mouth is open, it can prevent various problems associated with mouth breathing. It can be used by a wide range of ages, from infants with underdeveloped lower jaws who grind their teeth, to adults with teeth clenching, dry mouth, temporomandibular joint disorders, and elderly people at risk of aspiration, and is harmless. Once the discomfort of wearing it is overcome, it promotes restful sleep with light and safe nasal breathing. Other benefits include improved blood flow to the muscles around the mouth, while at the same time creating a slight tension in the lips, which is good for blood flow to the brain. The lips relax and the salivary glands work, so saliva is produced, but the structure prevents saliva from spilling out of the mouth. The base of the tongue is more easily moved forward, so the epiglottis (the lid for swallowing) moves. It is also expected to help prevent silent aspiration pneumonia.

The application discloses a swallowing-aspiration double-channel simulation device and method capable of evaluating food aspiration risk, and belongs to the technical field of food science and swallowing physiology simulation. The device comprises an oral cavity cavity, a pharyngeal cavity channel, a downstream bifurcated esophagus channel and a trachea channel, an epiglottis turnover mechanism for simulating normal closing, delayed closing or incomplete closing of the epiglottis, a multi-modal detection module for monitoring food sample volume, flow rate, pressure and particle conditions, and a control module for accurately controlling the action of the epiglottis turnover mechanism and synchronously collecting data. After a food sample to be detected is placed in the oral cavity cavity, a swallowing mode is selected, the swallowing simulation is started, and detection data are collected in real time. Through data analysis, the aspiration volume fraction is calculated, so that the aspiration risk grade of the food sample is quantified. The application provides a systematic, controllable and quantitative tool for evaluating food aspiration risk, and provides a scientific basis for the research and development of special food for special groups.

The utility model discloses a multifunctional trachea cannula catheter which comprises a base section and a pilot section. The multifunctional trachea cannula catheter is provided with an oxygen channel and a working channel side by side, the oxygen channel and the working channel both penetrate through the pilot section and the basic section, and the pilot section is suitable for being in a normal state and keeping a bending angle relative to the basic section during use. Compared with the prior art, the catheter has certain hardness, when the catheter is inserted into the oral cavity and the glottis, the catheter does not need to swing and twist for plasticity, and the catheter is not prone to bending and entering the esophagus by mistake; the catheter has a certain bending angle and hardness, so that the requirement of a doctor on the backward leaning of the head of a patient is reduced during intubation; the catheter is not easy to bend due to the pressing of the epiglottis, the catheter can supply oxygen uninterruptedly, and the breathing problems such as upper airway obstruction of a patient are solved; sputum in the oral cavity can be sucked out conveniently, and the visual field is kept clear.

The utility model discloses a visual light wand intubation bite block, which comprises a bite block component and a tongue pressing component, the bite block component is provided with an occlusion part for occlusion of teeth of a patient, and the occlusion part is hollow to form a guide cavity for insertion of a visual light wand; the tongue pressing assembly is connected with the occlusion part, the tongue pressing assembly is provided with a guide groove with an upward opening, the guide groove is used for bearing and conducting the guide cavity, and the tongue pressing assembly extends downwards in an arc shape in the direction far away from the occlusion part, so that when a patient occludes the occlusion part, the tongue pressing assembly can be separated from the guide cavity. The tongue depressing assembly is inserted in front of the epiglottis of the patient. The visual light bar can solve the technical problem that a beginner or an inexperienced doctor cannot accurately intubate through the visual light bar.

The invention relates to an intubation device for intubating a patient with an endotracheal tube, having the following features:a) a handle for holding the intubation device,b) a rigid guide rail which is connected to the handle and which has a guide channel, extending in a longitudinal direction from a patient-remote end to a patient-near end of the guide rail, for guiding the endotracheal tube, and has an upper face facing toward the patient's tongue during the intubation procedure,c) an epiglottis lifter for lifting the patient's epiglottis, wherein the epiglottis lifter is mounted movably on a component of the intubation device via at least one bearing element,d) at least one optical detection device in the patient-near region on the guide rail and / or at least one optical detection device in the patient-near region on the epiglottis lifter,e) wherein the epiglottis lifter, at least in the patient-near region, in particular in a bend region of the guide rail, covers and largely or completely closes the guide rail or at least the guide channel on the upper face of the guide rail.

The invention provides a flexible laryngoscope for a vocal cord fascia operation. The flexible laryngoscope effectively solves the problems that an existing laryngoscope is invariable in shape, invariable in shape and incapable of being adjusted at will in supporting strength during use, the epiglottis and the throat are very likely to be excessively supported or scratched, flexible adjustment cannot be achieved, and applicability and practicability are poor. According to the technical scheme, the device comprises a handle, a fixing cylinder is arranged on the left side of the handle, and a plurality of supporting units are arranged on the right side of the fixing cylinder; the multiple supporting units form a flexible mechanism; each supporting unit comprises a front small plate and a rear small plate, and two arc-shaped plates are arranged between the two small plates; when the arc-shaped plates on the multiple supporting units are opened at the same time, the throat can be opened; the lower ends of the small plates in the adjacent supporting units are hinged together, lead screws are arranged on the outer sides of the small plates, nuts are arranged on the lead screws, connecting rods are hinged to the nuts, and the upper ends of the connecting rods are hinged to the adjacent small plates. When the lead screws rotate at the same time, the upper ends of every two adjacent small plates are gradually close to each other, so that the flexible mechanism is of a bent arc-shaped structure.

A simulated airway for training and practicing medical procedures has an upper jaw having simulated teeth, a nasal passage, a tongue, an epiglottis, a larynx, a trachea, an esophagus, and vocal cords. Portions of the airway are reinforced with fabric. A method of making a human airway model for simulation of medical procedures includes sculpting a core for a mold from a resin material, depositing a layer of clay on the core, and placing the core in a mold. The layer of clay is removed and a polymer is injected into the mold.

The present invention relates to a gastric reflux prediction device for mechanically ventilated patients, belonging to the technical field of medical equipment. The gastric reflux prediction device comprises: a first pH sensor for measuring the pH value of the patient's oral cavity or epiglottis; a second pH sensor for measuring the pH value of the area where the dilation balloon on the endotracheal tube is located; and an analysis unit for receiving and analyzing the pH values ​​collected by the pH sensors. The analysis unit is configured to determine how the pH value of the patient's oral cavity or epiglottis changes over time based on the pH value provided by the first pH sensor, and to determine how the pH value at the upper end of the dilation balloon changes over time based on the pH value provided by the second pH sensor. The dilation balloon on the endotracheal tube can be positioned within the patient's trachea and in contact with the tracheal wall.

An airway device includes an outertube and a scope channel partially enclosed by the outertube. An intraluminal space in the outertube, not occupied by the scope channel, provides a passageway for air flow to the patient. An esophageal cuff is positioned distally on the scope channel. When inflated, the esophageal cuff secures the airway device in the proximal esophagus of the patient and helps to prevent gastric reflux by mechanically blocking gastric content from entering into the larynx. An inflatable bladder is attached to an anterior surface of the scope channel between the esophageal cuff and a distal opening of the outertube. When inflated, the bladder forms a tubular ring that pushes against the epiglottis and / or other soft tissue towards a wall of the hypopharynx to produce an unhindered air passage into the patient's trachea.

The invention aims at providing an auxiliary intubation device which comprises a guide block and an intubation assembly, the guide block comprises a tongue pressing part and a holding part, a sliding groove extending from the tongue pressing part to the holding part is formed in one side face of the guide block, the intubation assembly comprises a hose and a pipe pulling piece, a clamping block is arranged at one end of the hose, the hose is embedded in the sliding groove, and the clamping block is arranged on the other end of the hose. The clamping block is arranged at the end, away from the tongue pressing part, of the holding part, and the pipe pulling piece is arranged on the holding part and used for driving the hose to slide along the sliding groove so that the end, away from the clamping block, of the hose can stretch out of or retract into the end, away from the holding part, of the tongue pressing part. Thus, the tongue root of a patient is hooked and pulled by a certain distance through the tongue pressing part on the guide block, the hose is pushed into and penetrates through the epiglottis of the patient through the hose pulling part, rapid and accurate intubation operation is achieved, compared with the prior art, the auxiliary intubation device can be operated by a single person, convenience and rapidness are achieved, the intubation success rate is effectively increased, and the intubation efficiency is improved. And the injury of a patient caused by repeated intubation is avoided.

The utility model provides a nasal bronchoscope operating tube which comprises an operating tube, and the rear end of the operating tube is connected with a first connector of a tee joint in a sealing mode. A second interface, on the same axis with the first interface, of the tee joint is a bronchoscope inlet, and the second interface is detachably connected with an end cover; a third interface of the tee joint is connected with a high-flow breathing humidifying therapeutic apparatus through a high-flow catheter; the operation tube which is inserted through the nasal cavity and has the front end arranged above the epiglottis is used as an entry channel of the bronchoscope; at least one air hole is formed in the side wall of the front end of the operation tube. The nasal bronchoscope operation tube serves as a bronchoscope operation pipeline, and the bleeding risk caused by nasal mucosa injury caused by movement of a bronchoscope in the operation process is reduced; meanwhile, the device can be connected with a high-flow humidifying oxygen therapy instrument, the oxygen deficit risk of the patient in the operation process is reduced, and particularly the oxygen deficit risk caused by upper airway obstruction easily occurring to some obstructive sleep respiratory syndrome and tongue retrograde falling patients is reduced.

The invention relates to the technical field of medical instruments, in particular to a supraglottic positive pressure airway and application thereof.The supraglottic positive pressure airway achieves excellent positioning precision and stability through the innovation points such as concave cavity layered design, epiglottis support, arc-shaped groove and multi-channel design, meanwhile has good ventilation and drainage functions, and has the advantages of being simple in structure and convenient to use. According to the novel structural design, the epiglottis is lifted and matched with the throat, the problem that the throat is not completely closed in the prior art can be effectively solved, and therefore the safety and effectiveness of airway management are remarkably improved, the defects in the prior art are overcome, and more reliable technical support is provided for clinical airway management.

Provided in the present invention is a flexible laryngoscope for vocal cord fascia surgery, which flexible laryngoscope effectively solves the problems whereby during use, existing laryngoscopes are fixed in terms of form and shape, and have a support force that is unable to be freely adjusted, thereby easily causing excessive support or abrasion to the epiglottis and larynx, and the existing laryngoscopes cannot be flexibly adjusted, thereby resulting in poor applicability and practicability. The technical solution for solving the problems is as follows: the flexible laryngoscope comprises a handle, wherein a fixed cylinder is provided on the left side of the handle, and a plurality of support units are provided on the right side of the fixed cylinder; the plurality of support units form a flexible mechanism; each support unit comprises front and rear small plates, and two arc-shaped plates are provided between the two small plates; when the arc-shaped plates on the plurality of support units open simultaneously, the larynx can be dilated; the lower ends of the small plates in adjacent support units are hinged together, a lead screw is provided on the outer side of each small plate, nuts are provided on the lead screws, connecting rods are hinged to the nuts, and the upper ends of the connecting rods are hinged together with adjacent small plates; and when a plurality of lead screws rotate at the same time, the upper ends of two adjacent small plates gradually approach each other, such that the flexible mechanism has a curved arc-shaped structure.

The application relates to the technical field of laryngoscopes, and discloses a detachable multifunctional soft tube mirror intubation guide, which comprises a laryngoscope blade and a laryngoscope handle fixedly connected with one end of the laryngoscope blade, and a display screen is electrically connected in the laryngoscope handle; the detachable multifunctional soft tube mirror intubation guide further comprises a support tip movably arranged at one end of the laryngoscope blade away from the laryngoscope handle, the support tip is adjusted in angle through a lifting adjusting assembly to be suitable for different patients, a camera for electrically connecting with the display screen is arranged on an extension end of the laryngoscope blade, and a telescopic lifting assembly is arranged in the laryngoscope blade and extends to one side of the support tip, so that the lifting adjusting assembly can lift the epiglottis to expose the glottis, and smooth ventilation can be realized; the detachable multifunctional soft tube mirror intubation guide solves the problems that the length and angle of the conventional laryngoscope blade are fixed, the adaptability is poor, the laryngoscope blade cannot adapt to physiological differences of throats of different patients, the glottis cannot be accurately exposed, and the quantitative adjusting structure relies on manual experience operation and is prone to cause throat injury of the patient and operation failure.

1. Name of the product in this design: Split-lens anesthesia video laryngoscope (adult airway version). 2. Purpose of this design: To expose the glottis by lifting the epiglottis of the patient in clinical practice, to guide medical staff to accurately perform airway intubation for anesthesia or emergency treatment, and can also be used for intraoral examination and treatment. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

A simulated airway for training and practicing medical procedures has an upper jaw with simulated teeth, a nasal channel, a tongue, an epiglottis, a throat, a trachea, an esophagus, and a vocal cord. The portion of the air passage is reinforced by a fabric. A method of manufacturing a human airway model for medical procedure simulation includes sculpturing a core for a mold from a resin material, depositing a layer of clay on the core, and placing the core in the mold. The clay layer is removed and the polymer is injected into the mold.

The assembly comprises: an endotracheal tube (10), with an external wall (11); and a suction channel (12), with a first more distal portion (13), equipped with a suction end (14), and externally attached to the external wall (11). The suction end (14) is guaranteed to occupy the supraepiglottic area of a patient (1), above the vocal cords (3), larynx (4), and epiglottis (5). The suction channel (12) has a banana-shaped cross-section, with two opposite curved segments (15, 16). The suction channel (12) has orifices (21) in the vicinity of the suction end (14). The suction end (14) ends in a bevel (22). A supraglottic barrier (described in WO 2021 / 234183 (BRAVO) (17) may be housed in the endotracheal tube (10). The invention allows suctioning performance to be improved, as well as reducing damages to the patient.

A simulated airway for training and practicing medical procedures has an upper jaw having simulated teeth, a nasal passage, a tongue, an epiglottis, a larynx, a trachea, an esophagus, and vocal cords. Portions of the airway are reinforced with fabric. A method of making a human airway model for simulation of medical procedures includes sculpting a core for a mold from a resin material, depositing a layer of clay on the core, and placing the core in a mold. The layer of clay is removed and a polymer is injected into the mold.