21 results about "Tracheal wall" patented technology

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 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.

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.

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 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 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.

An endotracheal or tracheostomy tube with a cuff assembly includes a cuff pressure regulator and a leak detection system. Pressure sensors monitor and measure tracheal wall pressure and pressure in the cuff assembly. An abnormal reading from the pressure sensors can initiate a cuff pressure adjustment process. The leak detection system detects air leaks in the seal between the cuff assembly and the tracheal wall. An odor film with a predetermined odor is positioned on a lower portion of the cuff assembly, distal to the seal of the tracheal wall. When the predetermined odor is detected in the air in the trachea proximal to the cuff assembly, an air leak is indicated. An air circulation device creates a flow of air into the trachea so that a fresh batch of air can be sampled and tested. Detection of an air leak can initiate a cuff pressure adjustment process.

This invention belongs to the field of medical devices, specifically an endotracheal tube, comprising a curved main tube with a sealing cuff at its front end connected to an inflation / deflation mechanism, and an oxygen connector at its rear end. The front end of the main tube is connected to an adaptive adjustment tube via a universal joint ball, and the front end of the adaptive adjustment tube has a guide ball head with an outer diameter larger than that of the adaptive adjustment tube. During intubation, the adaptive adjustment tube can adaptively rotate, automatically adjusting the angle between the adaptive adjustment tube and the main tube to match the physiological anatomical angle from the glottis to the trachea, facilitating smooth entry of the adaptive adjustment tube into the trachea. Furthermore, when the adaptive adjustment tube deviates from the tracheal axis, it can automatically rotate to align with the tracheal axis, thereby preventing the tip of the adaptive adjustment tube from impacting the tracheal wall, accidentally entering the bronchus, or causing compressive damage to the vocal cords or arytenoid cartilage.

The sputum suction tube comprises a cannula body used for preventing bacteria and secretions from permeating, an air bag used for preventing mucous membranes from being directly adsorbed and damaged is arranged at one end of the bottom of the cannula body, a rubber plug is fixedly connected to the top of a spring, and a vent hole is formed in the connecting portion of the cannula body and the air bag. A physical barrier is formed through expansion of the air bag through the cannula body with the oblique incision and the air bag, an expandable structure is integrated at the position, 5 mm away from the tip end, of the cannula body, the structure is unfolded in an umbrella shape after being inflated, the cannula end can be effectively prevented from making direct contact with tissue, and a rubber plug is slidably connected into an inflation hole and can be inserted into the air bag after being subjected to the telescopic effect of muscular tissue. The air in the air bag pushes the rubber plug to move through the vent hole, the deformation range of the air bag is controlled, the air bag is made to be attached to the trachea wall all the time, and the situation that when the cannula body is attached to the wall accidentally, tissue is adsorbed by mistake is avoided.

The utility model discloses an airway stent fixing trocar which comprises a sleeve, a window, a needle core, a shaft, a needle tip and a spring, the sleeve is a hollow straight pipe, the window is arranged on the wall of the sleeve, the needle core can slide in the sleeve, one end of the needle core is fixed by the shaft, the needle tip is a hollow conical needle tip which is composed of two half conical shells and can be opened and closed, the needle tip is connected with the needle core through the shaft, and a part of the needle tip is located in the sleeve. The spring is a torsion spring and penetrates through the shaft in the hollow part of the needle tip; two torsion arms of the spring respectively act on the inner walls of the two sides of the needle tip to open the needle tip; the airway support fixing trocar further comprises a screw eye, a bolt, a nut, a fixing disc, a fixing sleeve and a knob, the screw eye is arranged on the trocar core, the bolt is screwed in the screw eye through the window, the nut is screwed on the bolt so that the trocar core and the trocar can be fixed into a whole, the fixing disc and the fixing sleeve penetrate through the trocar and can slide, and the knob is arranged on the fixing sleeve so that the fixing sleeve and the trocar can be fixed into a whole. The utility model has the advantages that the needle point is opened after percutaneous penetration through the tracheal wall and the stent, so that the stent and the tracheal wall can be fixed together, and the defect of displacement of the upper airway stent is overcome.

This invention provides a method for tracheal OCT image recognition and segmentation based on convolutional neural networks, comprising: (a) providing OCT images of the entire airway; (b) using a first convolutional neural network to obtain the tracheal lumen region in each image; (c) using a second convolutional neural network to obtain the tracheal wall region in each image, and merging it with the tracheal lumen region to obtain the final tracheal wall segmentation result; (d) using a third convolutional neural network to identify suspected bifurcation images, and identifying key bifurcation images by calculating the geometric changes of the tracheal lumen between adjacent images; (e) segmenting all OCT images into 5-10 segments using the key bifurcation images as nodes, and displaying the segmentation results of the tracheal lumen and tracheal wall according to the number of segments. By using this invention, doctors can quickly perform drawing and measurement on multiple OCT images, thereby reducing labor costs by at least 90% and improving measurement efficiency by at least 90%.

The utility model relates to an injector, in particular to a sleeve type dosing injector which comprises a needle cylinder and a sleeve type needle body. According to the sleeve type needle body, the first end of a flexible inner tube is connected with a needle cylinder injection connector; the first end of the needle-type outer tube is sleeved outside the second end of the flexible inner tube, and the second end of the needle-type outer tube is provided with a needle tip; a slidable structure is arranged between the needle head type outer tube and the flexible inner tube; the first end of the flexible inner tube is sleeved with the clamping limiting piece, the first end of the clamping limiting piece abuts against the needle cylinder, and the second end of the clamping limiting piece abuts against the first end of the needle type outer tube; a detachable structure is formed among the clamping limiting piece, the flexible inner tube and the needle head type outer tube. Compared with the prior art, the utility model solves the problem that the conventional syringe easily punctures the tracheal wall or causes the short and strong cough reaction of a mouse to cause the needle head to slip off. According to the scheme, after the tracheal cartilage is punctured, the outer-layer hard tube body is retracted, and the inner-layer hose is used for dosing, so that the tracheal wall cannot be punctured or the needle cannot slide off.

The invention relates to a modified breathing tube (endotracheal tube and tracheostomy tube) for use in wound healing following injuries or surgery of the trachea. A modified breathing tube (endotracheal tube and tracheostomy tube) is described. Ventilation tube (1) for vacuum treatment of injuries or after surgery of the trachea, comprising: • a first cuff (2a) as an inflatable balloon at a first, upper end (20) of the breathing tube, with a first cuff tube (4a), • a second cuff (2b) as an inflatable balloon at a second, lower end (30) of the breathing tube, with a second cuff tube (4b), • a sponge (3) which is arranged between the two cuffs and surrounds the breathing tube, wherein both cuffs enclose the breathing tube in a ring shape, so that a vacuum area (6) extends between them in which a negative pressure can be created between the sponge and the tracheal wall, and wherein a film (3b) is provided in the vacuum region (6) which surrounds the sponge and thereby also encloses the breathing tube inside, wherein openings can be made through the film so that a negative pressure can be created in the vacuum region (6). wherein the foil (3b) completely encloses the sponge (3), and where >5 openings are present in the film (3b) and the openings are symmetrically distributed over the film surface, as well as a set made from it.

This application relates to an endotracheal intubation assembly with a stimulation stent and its method of use. The spherical mesh structure of the stimulation stent, with the elastic support of the elastic tube, drives the stimulation electrode to be uniformly and stably attached to the tracheal wall, effectively avoiding poor contact of the stimulation electrode caused by changes in patient position or slight movement of the endotracheal tube. The entire device integrates the stimulation stent, stimulation electrode, catheter, and endotracheal tube into a single integrated design through an extension tube, eliminating the need for a separate stimulation device after endotracheal tube insertion. This significantly simplifies the clinical procedure, reduces the risk of mucosal damage and infection caused by additional tube placement, and ensures reliable contact between the stimulation electrode and the tracheal wall as the stimulation stent is stably deployed, guaranteeing continuous and stable transmission and action of the electrical stimulation signal, and significantly improving the accuracy and consistency of phrenic nerve stimulation.

The invention relates to a nasal visual sputum suction imbedding system, belongs to the technical field of medical instruments, and solves the problems of low imbedding success rate and incomplete sputum suction in the prior art. A nasal visual sputum suction imbedding system comprises an imbedding tube, a control module, a display screen, an elastic deformation structure, a tail end sputum suction structure and a miniature camera. The tail end sputum suction structure is provided with a plurality of sputum suction holes, and a micro camera is embedded in the tail end sputum suction structure; a display screen is arranged on the control module; the tail end sputum suction structure is communicated with one end of the implantation tube through the elastic deformation structure; the control module is used for controlling the elastic deformation structure to bend so as to control the direction adjustment of the tail end sputum suction structure; a sputum suction tube connector capable of being connected with an external negative pressure suction device is arranged on the side face of the imbedding tube. Visual placement of the trachea sputum suction tube is achieved, the success rate of tube placement is increased, multi-angle adjustment of the sputum suction direction is achieved, and sputum attached to the wall of the trachea can be effectively sucked away.