43 results about "Tracheal wall" patented technology

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 utility model discloses a double-lumen bronchial catheter with an inner balloon on the side of an extension branch pipe, which comprises a first air guide pipeline, a second air guide pipeline and the extension branch pipe, and the tail ends of the first air guide pipeline and the second air guide pipeline as well as the middle section and the tail end of the extension branch pipe are fixedly provided with inflation plugging components. The utility model has the beneficial effects that the inflation plugging assembly comprises a first inflation balloon which is fixedly sleeved on the outer walls of the tail ends of the first air guide pipeline and the second air guide pipeline, a second inflation balloon which is fixedly sleeved on the outer wall of the middle section of the extension branch pipeline, and a third inflation balloon which is coaxially and fixedly sleeved on the inner wall of the tail end of the extension branch pipeline; therefore, gaps between the peripheries of the first air guide pipeline and the second air guide pipeline and the trachea wall of a patient can be sealed through the first inflation balloon, meanwhile, double plugging can be conducted on the bleeding side lung or the pneumothorax side lung through the second inflation balloon and the third inflation balloon, and the plugging stability of the bleeding side lung or the pneumothorax side lung is improved.

The present invention provides a bionic composite artificial trachea, comprising: an artificial tracheal wall; the artificial tracheal wall comprising a biological patch layer and an absorbable biomaterial layer from the inside out; a tracheal stent disposed on the outside of the artificial tracheal wall; and a gasket wrapping the edge of the tracheal stent. The bionic composite artificial trachea, with the biological patch layer and the absorbable biomaterial layer as the artificial tracheal wall, combined with the arrangement of the tracheal stent, not only provides good ventilation, but also can slightly deform with airway pressure and has a certain degree of elasticity, so that the patient's head can move freely, without the trouble of having to fix the neck after traditional tracheal surgery; at the same time, the arrangement of the gasket can prevent the end of the tracheal stent from bruising surrounding organs due to friction during the initial implantation period; in summary, the bionic composite artificial trachea provided by the present invention can be applied clinically and can solve the problem of the lack of an effective tracheal substitute for primary tracheal reconstruction during the resection of an extra-long trachea in current tracheal surgery in a single operation.

The present application relates to a kind of nasal visualization sputum suction insertion system, belong to medical instrument technical field, solve the low success rate of insertion in prior art, sputum suction is not complete.The nasal visualization sputum suction insertion system includes: insertion tube, control module, display screen, elastic deformation structure, terminal sputum suction structure and miniature camera;The terminal sputum suction structure is provided with multiple sputum suction holes, and miniature camera is embeddedly installed;Display screen is arranged on the control module;The terminal sputum suction structure is communicated with one end of insertion tube by elastic deformation structure;The control module is used to control the bending of elastic deformation structure and then control the orientation adjustment of terminal sputum suction structure;The side of the insertion tube is provided with sputum suction tube interface capable of being connected with external negative pressure suction device.The present application realizes the visualized insertion of tracheal sputum suction tube, improves the success rate of intubation and the multi-angle adjustment of sputum suction direction, and can effectively suck off the sputum attached to tracheal wall.

The utility model relates to the field of medical instruments, in particular to a child tracheal catheter replacement guide wire which comprises a catheter body. The catheter comprises a catheter body and further comprises a core wire, a winding spring, a connector and a hydrophilic layer, the core wire is arranged in the catheter body, the outer side of the core wire is annularly sleeved with the winding spring, the connector is arranged at the top of the catheter body, the top of the core wire is connected with the bottom of the connector, the outer side wall of the core wire is wrapped with the hydrophilic layer, and the outer side wall of the winding spring is provided with a lubricating layer. By arranging the protective structure, the tracheal wall can be prevented from being damaged in the catheter replacement process, and the problems that when a common tracheal catheter is replaced and used, the catheter needs to be rapidly replaced, and although a guide wire can be inserted into the catheter due to the fact that the penetrability of the tip end of the guide wire of the catheter is high, the catheter cannot be rapidly replaced are solved. However, a protection structure is lacked, so that the tracheal wall is easily damaged in the catheter replacement process, the normal use of the catheter is influenced, and the use safety and practicability of the tracheal catheter are reduced.

The utility model discloses a pulmonary alveolar lavage fluid collecting device for rats and mice, which comprises a lavage needle (100), the lavage needle (100) comprises a needle head (101), a catheter (102) and a tube seat (103) which are sequentially communicated and connected from bottom to top, the outer surface of the needle head (101) is smooth and is used for preventing the tracheal wall from being scratched; the catheter (102) is arranged on the lavage needle (100), the trachea clamp (200) is provided with a reverse fork locking clamp structure, and the trachea clamp (200) is matched with the catheter (102) of the lavage needle (100) and used for stably clamping the catheter (102). By designing the special lavage needle and the trachea clamp, efficient and safe alveolar lavage fluid collection without suture line ligation is realized, the operation process is simplified, the sample quality and the experiment efficiency are improved, and meanwhile, the alveolar lavage fluid collection device can meet the requirements of experimental animals with different sizes.

The present application relates to an airway stent comprising a stent body and a covering membrane disposed on the stent body. The covering membrane comprises a covering section and folded-back sections, the covering section covering the stent body, and the folded-back sections being formed by folding back from ends of the covering section. The airway stent provided by the present application forms folded-back sections at both ends of the airway stent by using the covering membrane to increase thickness at both ends of the airway stent, while also enhancing soft support at both ends of the airway stent, thereby providing radial support to end portions at both ends of the airway stent without introducing rigid stimuli. This configuration reduces rigid friction of the ends of the stent body against a tracheal wall, thereby reducing stimuli to tracheal wall tissue and lowering the likelihood of airway restenosis.

The invention discloses application of arabinoxylan (AX) in preparation of a medicine for treating chronic obstructive pulmonary disease (COPD), and belongs to the technical field of medicines. The arabinoxylan (AX) can be used for preparing a medicine for treating the COPD (chronic obstructive pulmonary disease). Through a large number of researches, the inventor of the application finds that AX has a remarkable COPD treatment effect: lung inflammation in a mouse COPD model caused by haze can be reduced, the expression is that infiltration of mature T lymphocytes and macrophages in lung tissues is reduced, and the expression level of various proinflammatory factors including TGF-beta1 is reduced; the compound can weaken extracellular matrix deposition in the lung of a COPD mouse caused by haze, reduce the thickness of a tracheal wall, and reduce the expression of I-type collagen (collagen I) and a myofibroblast marker smooth muscle alpha2-actin (alpha-Sma); the emphysema degree of a COPD mouse induced by haze is also relieved; the AX also relieves abnormal changes of related protein levels of iron metabolism, mitochondrial metabolism, oxidative stress and glycometabolism in the lung tissue of the COPD mouse induced by haze. Therefore, AX can be used for preparing the medicine for treating COPD.

The application relates to the technical field of tracheal catheters, and discloses a medical tracheal catheter with double coatings of local anesthetic and antibacterial drugs, which comprises a catheter main body and a cuff main body connected to the outer wall of the catheter main body, the catheter main body comprises a catheter base material layer, a first transition bonding layer, a first nano local anesthetic coating and a first antibacterial coating; the cuff main body comprises a cuff base material layer, a second transition bonding layer, a second nano local anesthetic coating and a second antibacterial coating; a tracheal tube is mounted on the catheter main body; and a head tube is connected to the bottom end of the catheter main body. The first nano local anesthetic coating, the first antibacterial coating, the second nano local anesthetic coating and the second antibacterial coating are arranged, so that the catheter main body and the cuff main body can realize a synergistic protection mechanism of analgesia and antibiosis; during the process of leaving the catheter, the local anesthetic drug acts on the mucosa of the tracheal wall through slow release, and the antibacterial component effectively reduces bacterial adhesion and biofilm formation.

The invention discloses a newborn pulmonary surfactant intratracheal administration catheter, which belongs to the field of medical instruments and comprises a catheter main body, and a guide head is detachably mounted on the catheter main body; the medicine guiding assembly is arranged in the medicine guiding tube body and used for guiding medicine to the lower section of the trachea of the newborn and the position close to the pulmonary alveoli; the air guide assembly is arranged in the medicine guide tube main body and is used for ensuring that the respiratory function of the newborn is stable in the medicine administration process; the lubricating assembly is arranged in the medicine guide tube body, the universality and adaptability of the catheter are improved through the detachable guide head, and the equipment cost is reduced; due to the precise guiding function of the medicine guiding assembly, medicine waste is avoided, and the treatment effect is improved; the air guide assembly effectively prevents the breathing problems such as oxygen deficit of the newborn during administration, and the treatment safety is guaranteed; the lubricating assembly remarkably reduces the damage risk of the guide head to the fragile tracheal wall of the newborn, and relieves the pain of the newborn.

The invention discloses a navigation path multiplexing method which comprises the following steps: S1, acquiring historical operation data which comprises a historical navigation path and a historical catheter posture; s2, acquiring a trachea three-dimensional model of a patient, and extracting a center line of the trachea three-dimensional model; s3, generating a current navigation path based on the historical navigation path and the trachea three-dimensional model; and S4, in the navigation process, performing real-time collision detection on the microscopic image by adopting the collision detection model, and adjusting the posture of the catheter according to a collision detection result. By adopting the method, the navigation path can be quickly obtained, rich operation data resources are fully utilized, the complexity of an existing path planning method is avoided, and the path planning efficiency is improved; the collision detection model is constructed through computer vision and is applied to real-time navigation of the catheter, so that the catheter can be effectively prevented from colliding with a tracheal wall or other lung tissues, and the navigation safety is improved.

The utility model discloses a tracheal catheter device which comprises a tubular body provided with a near end and a far end opposite to the near end, and the far end is provided with an opening used for ventilation and a far-end tip; the cuff is arranged around the tubular body and is configured to seal the tracheal wall of the patient after being inflated, and the cuff is in a truncated cone shape and is provided with a conical near end and a far end opposite to the near end; marks disposed on the outer surface of the tubular body are configured to allow placement of the tracheal catheter device in the trachea with the cuff below the tracheal annulus cartilage outlet, preventing the opportunity of pressure damage to the airway when the cuff is located in the tracheal annulus cartilage region. According to the mark, the tracheal catheter device can be placed in the trachea of a patient so that the cuff can be located at the ideal position of the trachea of the patient, and due to the fact that the cuff is in a truncated cone shape, the chance that the airway is damaged by pressure when the cuff is located in the annular cartilage of the patient can be effectively prevented.

The present invention relates to an improved intubation condition of a patient based on the application of a new type of endotracheal (ET) tube with one or two cuffs. The present invention relates in particular to a cuff configuration for a single or double cuff ET tube. The cuff is especially configured to achieve an improved seal with the tracheal wall of the patient, thus avoiding air and / or liquid leakage. Although tight and efficient, the improved seal is soft and gentle (making the minimum necessary contact between the cuff and the tracheal wall) and no longer causes severe reversible or permanent damage to the tracheal region of the patient. The special cuff configuration comprises multiple inflatable sections (because the cuff is inflatable), which may possibly be determined as separate balloons, and may further comprise one or more one-way valves, all of which may or may not be inflatable. [Reference figure] Figure 1

The present invention relates to an oropharyngeal ventilation device with a suction function, comprising: a first ventilation valve, used to detect a first pressure value in a pipeline when connected and fit it into a pressure curve, and the fluctuation range of the pressure curve when there is no sputum is used as the prone fluctuation range of the initial pressure value; a second ventilation valve and a processor, used to issue a periodic connection instruction when the first pressure value exceeds the prone fluctuation range of the initial pressure value, so that the second ventilation valve can be connected to suction sputum, and the first pressure value is triggered to update when the processor issues a periodic connection instruction. The present invention aims at the problem that suctioning sputum on time easily causes damage to the patient's airway mucosa and increases the probability of lung reinfection. By measuring the air pressure in the first ventilation valve, it is determined whether one end of the suction tube connected to the first ventilation valve is blocked by foreign matter or tracheal wall according to the change in air pressure, and then it is determined whether suctioning is needed, thereby achieving the purpose of suctioning sputum on demand.

The invention relates to the technical field of medical teaching, and particularly discloses a bronchoscope simulation teaching device which comprises a bronchus model and a bronchoscope body, and further comprises a trachea simulation assembly which is arranged on the outer side of the bronchus model and is used for randomly controlling and simulating different trachea diameters of the bronchus model; through the trachea simulation assembly, different trachea diameters of the bronchial model can be simulated randomly, so that different thicknesses of different human tracheas can be correspondingly simulated, and bronchoscope diagnosis and treatment under the tracheas with different diameters can be simulated and practiced; and then the expansion and contraction variable quantity of the trachea diameter when the human body breathes can be randomly simulated, different tolerance degrees of the bronchoscope to the trachea wall operation pressure can be randomly adjusted through the pressure assembly, and the trachea diameter change of the bronchus model can be adjusted again through the adjusting assembly when the trigger limit value of the pressure assembly is reached.

A tracheotomy catheter comprises a fixed wing and a catheter body, the fixed wing is arranged at the outer end of the catheter body, the inner end of the catheter body is movably sleeved with a movable installation sleeve, the movable installation sleeve is provided with an air bag structure, and the upper side of the movable installation sleeve is connected with a telescopic secretion suction pipe opening structure and a movement control device. The air bag structure is further connected with an air inflation device through an air inflation pipe structure, and the telescopic secretion suction pipe opening structure, the movement control device and the air inflation pipe structure all penetrate through the fixing wings along the outer wall of the catheter body. According to the tracheotomy catheter indwelling for a long time, the air bag is prevented from pressing the fixed position of the trachea wall for a long time, and the surface of the air bag is prevented from being adhered to the trachea wall, so that the clinical problems of tracheal mucosa blood supply disorder, local ulcer, avascular necrosis or perforation, even esophagus erosion and the like are completely avoided; and the upper respiratory secretions can be completely extracted and discharged.

An inflatable cuff for an endotracheal tube system has a sealing component that is one or a combination of (a) a proximal one-directional valve configured to deflect with underpressure during the intubation procedure and contact the tracheal wall of a patient to provide sealing, (b) a distal one-directional valve configured to deflect with overpressure during the intubation procedure and contact the tracheal wall to provide sealing; and (c) a cloud shape of the inflatable portion. The cloud shape is defined by at least one sealing section of the inflatable portion having a primary maximum inflated diameter and at least one non-sealing section of the inflatable portion having a maximum inflated diameter less than the primary maximum inflated diameter. The inflatable cuff may be inflatable by a ventilation tube. The system may include a cuff controller that senses airflow parameters and provides regulated flows of air during an intubation procedure.

The present application relates to the technical field of tracheal intubation, and particularly relates to a flexible support structure and a tracheal intubation tube with the same, which comprises a framework, an air cavity, a skin, an oxygen supply tube, a gas supply chamber and an oxygen outlet tube. The skin is inflated and clamped and fixed by the inflation of the framework, and at the same time, the skin is extruded and adhered to the inner wall of the trachea due to the air pressure, so that uniform adhesion is achieved and the damage to the tracheal wall is smaller. The support structure has high softness and high biocompatibility, and the extrusion foreign body sensation caused is smaller. The oxygen supply tube is telescopically arranged and covered by the framework and the skin, so that the possibility of the tip and the tube body of the oxygen supply tube scratching the tracheal wall during the insertion process is reduced, and the use safety is improved. During the telescopic process of the oxygen outlet tube, the removal and collection of the mucus secretion at the end of the trachea and the hypoxia caused by the inability to supply oxygen during the intubation process are simultaneously achieved. The clamping teeth adjust the limiting effect along with the position change of the oxygen outlet tube, so that the oxygen outlet tube is prevented from rebounding after being stretched out, and the temporarily adsorbed and stored mucus is prevented from rebounding and flowing out.

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.

Self-expanding, tubular (tapered or constant diameter), oval or elliptical (not circular) airway stents suitable for placement under open or minimally invasive approaches within patients of various sizes and of various species, and methods for their placement in a tracheobronchial tree of a patient. The airway stent may be provided in various lengths and have an oval or elliptical cross-sectional shape that is either constant or variable in both short axis dimensions. The airway stents are particularly suited for treating patients with large airway obstructions in whom the natural airway cross-sectional dimensions are oval or elliptical rather than circular. The airway stent allows for more anatomic filling of the natural airway lumen, reduces the need to oversize the airway stent diameter and therefore reduces subsequent stent fatigue and fracture, and improves stent-tracheal wall contact to minimize gaps that lead to mucus trapping and chronic infections with subsequent tissue ingrowth and airway obstruction.

The present invention relates to a tube-resistant tracheal intubation device, comprising: an outer tube, one end of which is an imbedding end and the other end of which is an operating end; the inner tube penetrates through the outer tube, one end of the inner tube protrudes out of the operation end of the outer tube to be connected with breathing machine equipment, and the middle of the other end of the inner tube is connected with the imbedding end of the outer tube; the air bag assembly is arranged on the outer wall of the outer tube and used for being fixed in the trachea of the patient after being inflated; a medicine feeding assembly is arranged on the air bag assembly and used for infiltrating the tracheal wall of a patient with liquid medicine so as to increase the tolerance of the patient to the intubation device; the suction ring assembly is arranged on the outer wall of the outer tube and corresponds to the air bag assembly; a pipe passing gap is formed between the outer pipe and the inner pipe, and the pipeline of the air bag assembly and the pipeline of the suction ring assembly are arranged in the pipe passing gap. The operation of infiltrating the inner wall of the trachea of a patient with sedative and analgesic liquid medicine can be performed through the administration assembly arranged on the air bag assembly, so that the dosage of systemic administration is reduced, and the medical cost is reduced. And the comfort degree that the patient can be awakened to tolerate the trachea cannula is improved.

The invention relates to the technical field of pneumology department medical instruments, and particularly discloses a bronchoscope interventional therapy device which comprises a bronchoscope main body, a bronchoscope body is fixed to the bottom of the bronchoscope main body, the bronchoscope main body can be supported and fixed through a fixing assembly, and the situation that a doctor holds the bronchoscope main body for a long time to ache the hand, and consequently the next operation is affected is prevented; meanwhile, the fixing assembly can guide and disinfect the bronchoscope body, the infection risk is reduced, a doctor can operate the bronchoscope conveniently, the fixing height of the fixing assembly to the bronchoscope body can be adjusted through the telescopic assembly, and the fixing assembly and the telescopic assembly can be more conveniently fixed to a treatment bed through the clamping assembly and the rotating assembly; through the slowing-down assembly, it can be detected that the tracheal wall of a patient is stimulated by the endoscope body, meanwhile, the endoscope body which does not enter the body of the patient is clamped, a doctor is reminded to adjust the position of the endoscope body, and meanwhile the entering speed of the endoscope body is slowed down.

An endotracheal tube or tracheostomy tube with a sleeve assembly includes a sleeve pressure adjuster and a leak detection system. A pressure sensor monitors and measures tracheal wall pressure and pressure in the sleeve assembly. Abnormal readings from the pressure sensor may initiate a sleeve pressure adjustment process. A leak detection system detects air leaks in a seal between the sleeve assembly and the tracheal wall. An odor film having a predetermined odor is positioned on the lower portion of the sleeve assembly on the sealed distal side of the tracheal wall. An air leak is indicated when a predetermined odor is detected in the air in the trachea proximal to the sleeve assembly. The air circulation device generates air flow entering the air pipe, so that a new batch of air can be sampled and tested. A sleeve pressure regulation process may be initiated when an air leak is detected.

The utility model provides a novel air bag tracheal catheter. The novel air bag tracheal catheter comprises a catheter; the air bag sleeves the area, close to the front end, of the catheter; the inflation tube is connected with the air bag and used for inflating the air bag; the tensile strain sensor assembly is arranged on the outer surface of the air bag; the terminal is electrically connected with the tensile strain sensor assembly, and the terminal is used for acquiring the strain value of the air bag; wherein the change rate of the strain value monitored by the terminal is reduced in response to expansion of the airbag to be attached to the tracheal wall. According to the novel air bag tracheal catheter, interaction force between the air bag and the tracheal wall is measured in real time through the tensile strain sensor, guidance is conducted when the air bag is inflated so that the air bag can be attached to the tracheal wall most ideally, the minimum air leakage amount can be achieved, effective ventilation can be guaranteed, and related complications can be reduced.

An endotracheal tube or tracheostomy tube with a cuff assembly comprises a cuff pressure regulator and a leak detection system. A pressure sensor monitors and measures the tracheal wall pressure and the pressure within the cuff assembly. When the measured value of the pressure sensor is abnormal, the cuff pressure adjustment process is initiated. The leak detection system detects air leakage from the seal between the cuff assembly and the tracheal wall. A scented film with a predetermined scent is placed on the lower portion of the cuff assembly distal to the seal with the tracheal wall. If a predetermined scent is detected in the air within the trachea proximal to the cuff assembly, it indicates an air leak. An air circulation device can generate an air flow within the trachea and sample and inspect a new batch of air. When an air leak is detected, the cuff pressure adjustment process is initiated.

The invention discloses a tracheotomy cannula, which belongs to the technical field of medical instruments and comprises a cannula body, and the wall of the cannula body is provided with a cavity and is divided into an outer wall and an inner wall; the sealing air bag is arranged on the cannula body and located at one end close to the insertion end of the cannula body, the sealing air bag is communicated with a first inflation / deflation assembly, and the first inflation / deflation assembly is used for inflating and deflating the sealing air bag; the cleaning mechanism is arranged on the cannula body and located on the side, away from the insertion end, of the sealing air bag, and the cleaning mechanism communicates with a liquid drainage assembly and is used for cleaning mistakenly-sucked objects and secretions. By means of the pressure sensor arranged in the sealing air bag, the pressure in the sealing air bag can be controlled, the sealing air bag is always kept to be properly attached to the tracheal wall, and the situation that the diaphragm layer between the cannula body and the esophagus is damaged due to the fact that the pressure in the sealing air bag is too high can be avoided.

The present invention provides a bronchoscope drug delivery device, comprising a catheter, a handle arranged at the proximal end of the catheter facing the user, a probe and a light source arranged at the distal end of the catheter facing the patient, and a drug delivery mechanism and a drug delivery control mechanism for controlling the drug delivery mechanism. The drug delivery mechanism comprises a catheter drug delivery section located at the front section of the catheter, two groups of air bags, a drug storage cavity and a step linkage assembly. The drug storage cavity is circumferentially embedded in the catheter drug delivery section, and dense spray holes are opened on the outer wall of the drug storage cavity. The two groups of air bags are arranged on the catheter drug delivery section. By making the filling of the air bag and the spraying of the drug storage cavity into two stages in sequence, on the one hand, the design enables the air bag to be supported on the tracheal wall, providing stability for spraying, and making the positioning accuracy of spraying high. On the other hand, the two groups of air bags can block most of the drugs splashed during spraying, so that the drugs only act on the area where spraying is required, reduce the diffusion of the drugs, improve the accuracy of spraying, and use less dosage for saturated spraying.

A tracheotomy catheter high in adaptability comprises a fixing wing and a catheter body, the fixing wing is arranged at the outer end of the catheter body, a bent guide part is rotatably arranged in the inner wall of an inner port of the catheter body, an air bag structure is arranged at the inner end of the catheter body, and the bent guide part is arranged close to the air bag structure. The air bag structure is connected with an inflation device through an inflation tube structure. The tracheotomy catheter is simple in structure, capable of preventing the bent guide portion of the tracheotomy catheter from being blocked by the trachea wall, convenient to use and high in adjustability.

The invention relates to the technical field of trachea cannulas, in particular to a flexible supporting structure and a trachea cannula with the flexible supporting structure, the flexible supporting structure comprises a framework, an air cavity, a skin, an oxygen supply tube, an air supply chamber and an oxygen outlet tube, the skin is driven by inflation of the framework to expand and be clamped and fixed, and meanwhile, the skin is extruded and attached to the inner wall of a trachea due to air pressure to achieve uniform attachment; the support structure is high in flexibility, high in biocompatibility and small in extrusion foreign body sensation, the oxygen supply tube is arranged in a telescopic mode and is wrapped by the framework and the skin, the possibility that the tip end and the tube body stabs the trachea wall in the insertion process is reduced, and the use safety is improved; the trachea tail end mucus secretions are synchronously removed and collected, the oxygen deficit condition caused by the fact that oxygen cannot be supplied in the intubation process is avoided, the clamping teeth can adjust the limiting effect along with the position change of the oxygen outlet pipe, and the situation that the temporarily adsorbed and stored mucus rebounds and flows out due to the fact that the oxygen outlet pipe rebounds after stretching out is prevented.

The tracheal catheter comprises a catheter body, a cuff and an air pressure control assembly matched with the cuff, one side of the cuff partially extends outwards to form an extension part, a first temperature probe is arranged at the tail end of the extension part, a connecting section is arranged between the extension part and the cuff, and the diameter of the connecting section is smaller than that of the extension part; an air bag and an elastic piece are arranged on one surface, facing the tube body, of the extension part; the tail end of the elastic piece is connected with the cuff. The first temperature probe makes contact with the tracheal wall, the core body temperature of a patient is sensed in real time, and accurate body temperature data are provided for medical staff; the air pressure control assembly accurately monitors the pressure of the air bag in the tracheal catheter in real time and enables the air pressure of the cuff to be maintained within the preset range all the time, mucous membrane damage caused by too high pressure of the air bag can be avoided, and it can be ensured that the cuff can effectively fix the catheter body and seal the airway.