78 results about "Tracheal wall" patented technology

An endotracheal tube and suction catheter system having an inflatable cuff with a collection pocket formed in the cuff for collecting pooled secretions and a railing system for controllably guiding a suction catheter along the tube and into the pocket for aspirating pooled secretions. The cuff has an elongated parallelogram-like shape to counter the rocking phenomenon caused by a patient coughing or turning to keep the cuff in contact with the trachea wall so secretions do not leak past the cuff balloon. The railing system allows the suction catheter to be replaced without having to remove the endotracheal tube from the patient.

Disclosed are methods for intubating a patient, comprising deploying a tracheal tube, a sleeve and a cuff into a human trachea such that after deployment, the tracheal tube passes through the sleeve within the trachea, the cuff contacts the outer surface of the tracheal tube and the inner surface of the sleeve and spaces the sleeve from the tube, and the outer surface of the sleeve contacts the trachea, so as to provide a seal, in the interstitial area between the wall of the trachea and the tube, between a proximal portion of the human trachea above the cuff and a distal portion of the human trachea below the cuff. Other embodiments are also disclosed.

Methods and devices are disclosed for manipulating the airway, such as to treat obstructive sleep apnea. An implant is positioned within the body with respect to the airway. The spatial orientation of the airway is manipulated, directly or indirectly, to affect the configuration of the airway. In general, the implant is manipulated to displace the trachea in an inferior direction, resist superior displacement of the trachea and / or to alter the tracheal wall tension. The implant restrains the trachea in the manipulated configuration.

A multi-layer inflatable balloon cuff may be adapted to seal a patient's trachea when associated with an endotracheal tube. The outer layer and the inner layer of the balloon cuff may have different material properties that may enhance a cuff's mechanical pressure seal by reducing wrinkles or folds that may form against a patient's tracheal walls.

An improved tracheostomy tube providing a decreased tendency to produce rubbing, pressure necrosis, ulceration and scarring of the tracheal mucosa. The tube typically includes a rigid proximal section, a flexible intermediate section, a rigid distal section, and a beveled distal tip. The flexible intermediate section has a smooth surface and bends easily in response to pressure asserted by the tracheal walls, allowing the distal rigid section of the tube to remain in a parallel orientation relative to the tracheal lumen, The distal tip of the tube is beveled to provide a greater cross-sectional area at the tube's distal section. This beveled distal tip prevents the distal section of the tube from becoming obstructed by the back wall of the trachea or causing erosion of the tracheal mucosa. The distal tip also has a beaded or rounded edge, which further minimizes the risk of damage to the tracheal mucosa and provides a guide to the clinical care specialist during suctioning.

An airway management device is provided that may adjust the inflation level of a cuff associated with an endotracheal tube. The cuff inflation may be adjusted in response to an increase in carbon dioxide levels above the cuff, which may indicate a poor seal of the cuff against the tracheal walls, as well in response to a measured intracuff pressure. By using information about the seal quality of the cuff together with information about the cuff pressure, the inflation of the cuff can be adjusted to minimize cuff inflation pressure while maintaining a high quality tracheal seal.

An airway management device is provided that may adjust the inflation level of a cuff associated with an endotracheal tube. The cuff inflation may be adjusted in response to an increase in carbon dioxide levels above the cuff, which may indicate a poor seal of the cuff against the tracheal walls, as well in response to a measured intracuff pressure. By using information about the seal quality of the cuff together with information about the cuff pressure, the inflation of the cuff can be adjusted to minimize cuff inflation pressure while maintaining a high quality tracheal seal.

The invention relates to a degradable artificial trachea support frame and a manufacturing method thereof, which belong to the technical field of biological medicine. The support frame is characterized by being weaved into a circular pipe shape by polyp-dioxygen cyclohexanone monofilaments or polyglycolic acid monofilaments; the longitudinal axles of a tracheal wall transversely surround a pipe-shaped annulet formed by weaving the double-layered monofilaments at intervals; the monofilaments on the inner layer of the tracheal wall are bond uniformly; collagen is uniformly covered on the surfaces of the monofilaments; and chitosan is covered on the collagen in sequence. The manufacturing method comprises the following steps: weaving the circular pipe-shaped annular support frame; dipping the support frame into 2 percent of collage solution and drying; coating chitosan solution on the surface of the inner layer; and drying for standby. After the invention is executed, the stimulation of patches to human tissues is reduced and the anti-infectious capacity is strong, so as to be beneficial to reconstruct tracheas; a double-layer structure can accommodate the support frame for rehabilitating tracheal rings and achieve double rehabilitations in aspects of physiological anatomy and function of the defective tracheas; and the coating layer of the chitosan is arranged on the inner layer, so as to be beneficial to the creeping rehabilitation of tracheal endothelium.

Devices and methods for treating one or more pulmonary diseases while avoiding or minimizing injury to the esophagus and branches of the vagus nerve that run along the outside of the esophagus. The device includes at least one energy delivery element disposed on an elongate member and a means for protecting the esophagus and surrounding tissues, such as esophageal branches of the vagus nerve, during treatment. The energy delivery element is positionable to target at least one nerve in or around the tracheal wall when the elongate member is positioned in the trachea. Energy from the energy delivery element is delivered to the at least one nerve to treat pulmonary symptoms, conditions, and / or diseases, such as asthma, COPD, obstructive lung diseases, or other pulmonary diseases, while the protection means protects the esophagus and surrounding tissues from permanent damage.

The invention relates to a pulmonary vascular tree segmentation method with tubular structure enhancement and an energy function combined. A Pock function is used to calculate the response of a tubular structure, and a potential vascular region is thus detected; a tubular structure enhancement algorithm based on a diffusion tensor is then adopted to enhance the original image, influences on the original image by noise are reduced, and the vascular region is enhanced; and finally, a Pock function calculation result and an image enhancement result are combined to build a region description operator, and a minimum energy segmentation method VRG method is used to finely segment the pulmonary vessel. The segmentation result shows that while the method segments a main pulmonary vessel, a large amount of tiny vessels are also extracted, and the segmentation result is little influenced by the noise. The method is high in specificity, the sensitivity is strong, a vessel and a tracheal wall areacan be distinguished, and the segmentation result accuracy is further improved.

A multi-layer inflatable balloon cuff may be adapted to seal a patient's trachea when associated with an endotracheal tube. The outer layer and the inner layer of the balloon cuff may have different material properties that may enhance a cuff's mechanical pressure seal by reducing wrinkles or folds that may form against a patient's tracheal walls.

The present invention relates to a multifunctional tracheal cannula capable of conveying medicine onto tracheal wall or lubricating agent. Said multifunctional tracheal cannula includes the following several portions: cannula, air-charging tube, air-charging bag and medicine storage bag. Said invention also provides the concrete structure of above-mentioned every portion, and also provides the working principle of said multifunctional tracheal cannula.

The invention relates to a bronchial puncture wall-breaking device, which comprises an outer sheath tube, a head of a guide head is in a pointed cone shape, the tail of the guide head is coaxially connected with the front end of the outer sheath tube in a fastened mode, and the guide head is hollow and communicated with the interior of the outer sheath tube to form a channel; a puncture needle isused for being coaxially arranged in the channel in a penetrating mode and can reciprocate in the outer sheath tube so as to stretch in or out of the head of the guide head. The bronchial puncture wall-breaking device can penetrate through the bronchus wall, a wound can be enlarged and deepened, a path from the bronchus wall to a target focus is artificially established, and a biopsy sample can beobtained.

Described here are systems and methods for monitoring airflow changes in a patient's airway during a medical procedure or as a general patient monitoring tool. Doppler ultrasound signals are acquired from an anatomical region within the patient's airway (e.g., a tracheal wall, a cricothyroid ligament, other connective or cartilaginous tissue within the trachea, larynx, or pharynx) and parameters from those Doppler ultrasound signals are compared to baseline parameters, which may include inputting Doppler ultrasound signals to a suitably trained deep learning model or other machine learning algorithm. When a threshold change is detected, an alarm can be provided to a user to indicate respiratory compromise and / or failure, which can include early airway compromise, airway failure, and / or airway obstruction.

The invention provides an umbrella-shaped cuff trachea cannula. A closed cuff is bonded to the periphery of a section of trachea cannula, a cuff air injection hole is formed on the trachea cannula part of the cuff section and communicated with an air injection tube, the air injection tube extends out of the trachea cannula wall and is connected to an air release valve, the air release valve is communicated with an air bag through a conduit, and the upper part of the air bag is connected with an air injection port in which an air injection valve is arranged. The front part of the cuff is an umbrella-shaped wall, the front side of the umbrella-shaped wall is connected with a limit net, and the limit net is provided with a plurality of limit meshes. Compared with the conventional cuff trachea cannula, the umbrella-shaped cuff trachea cannula can automatically adjust the pressure between the cuff and the human trachea wall so as to prevent over-high pressure from destroying the trachea mucosa and prevent air leakage. Moreover, the umbrella-shaped cuff trachea cannula is convenient and smooth to plug and pull, and is suitable to be used as a trachea cannula and a trachea cutting cannula in the field of medical equipment.

The invention discloses an enhanced CT image tracheal wall enhancement method, a system, a device and a medium, and the method comprises the steps: obtaining an enhanced CT image sequence, and carrying out the thresholding of the enhanced CT image sequence; performing three-dimensional region growth on the image subjected to thresholding processing to obtain lung and trachea masks; performing closed operation on lung and tracheal masks; performing three-dimensional region growth on the image obtained by the closed operation, and segmenting a trachea main body; calculating boundary pixel characteristics of each pixel point of the trachea main body; judging whether each pixel point of each image in the enhanced CT image sequence belongs to a tracheal wall based on the boundary pixel characteristics; and enhancing the pixel values of the pixel points belonging to the tracheal wall.

The invention provides a double-layer cuff trachea cannula. Air vents are formed on a section of the cannula wall of the trachea cannula; an inner cuff is sleeved outside on a part of the trachea cannula, which is provided with the air vents; an outer cuff is sleeved outside the inner cuff; an air vent valve, an air injection bag and an air injection valve are sequentially connected to an air injection pipe; an air injection port is formed on the upper part of the air injection valve; the air injection pipe penetrates through the wall of the trachea cannula, and then reversely penetrates through the wall of the trachea cannula; and an air outlet of the air injection pipe is communicated with a gap between the inner cuff and the outer cuff. The double-layer cuff trachea cannula is conveniently inserted into the trachea of a human body, and the outer cuff closely contact the trachea wall of the human body, so that damage of too large cuff pressure to the trachea of the human body is reduced, or the phenomenon of air leakage caused by too small pressure and low sealing performance is avoided. The double-layer cuff trachea cannula is suitable to be used for trachea inserting and cutting in the therapeutic process of diseases of the human body.

The present invention relates to a medical device for performing surgery in the body using a percutaneous dilatational procedure, one embodiment of which is a percutaneous dilatational tracheostomy (PDT) device having a dilator with a non-uniform surface profile that is optimized to the relevant anatomy in order to reduce, uniformly distribute, and ensure uniform, or constant temporal derivative of, dilatational force throughout dilation. This serves to reduce trauma to the patient, specifically producing a reduction of anterior tracheal wall compression, posterior wall laceration / perforation, and tracheal ring fracture that may subsequently lead to subglottic suprastomal stenosis.

The present invention provides a biological composite artificial trachea and its preparation method in combination with 3D printing technology. The material used in the present invention has both flexibility and certain mechanical strength, which meets the physical and mechanical properties of the trachea as a hollow organ in the thoracic cavity; secondly, The artificial trachea of ​​the present invention has a porous and loose structure, which is conducive to the diffusion of nutrients and the growth of autologous blood vessels; in addition, the present invention prints the seed cells obtained from the expansion of the recipient's own airway epithelial cells and chondrocytes in the trachea wall, The patient's rejection of the cells is avoided; moreover, the seed cells are composed of terminally differentiated mature cells, which avoids the problem of inducing differentiation and the risk of tumor formation caused by the use of stem cells; at the same time, the spatial distribution of the cells in the present invention is The printing is precise and controllable, and the distribution according to histological laws accelerates the repair process; finally, the tracheal stent can be degraded in the body, reducing the complications caused by foreign body residues in the body, and avoiding the risk of secondary surgical removal.

The invention discloses a laryngeal surgical instrument which comprises a laryngoscope handle and a throat cannula. The laryngeal surgical instrument is characterized in that the throat cannula is round or oval, a scissors forceps insertion channel and a detection head are arranged in the throat cannula, and a flexible opening is formed in the side wall of the scissors forceps insertion channel in the axial direction to facilitate diameter reduction of a laryngoscope. The laryngoscope can be conveniently and rapidly inserted into the trachea of a patient, contusion of the tracheal wall in the laryngoscope inserting process is reduced, and meanwhile a visual operative field is further remarkably widened. After the laryngoscope is inserted into a designated position, a pair of arc-shaped scissors forceps is movably inserted into the scissors forceps insertion channel for lesion tissue shear. Due to the fact that structure is adopted, the laryngeal surgical instrument has the advantages of being novel in structure, convenient to operate, short inn operation time, few in postoperative complications, small in patient's suffering, high in surgical operation accuracy and the like.

The invention relates to an endotracheal tube (1), usable in dilating percutaneous tracheostomy operations and comprising a tubular body (10) whose distal end, to be inserted in trachea, is provided with means (3) suitable to emit a light radiation for determining a transcutaneous illumination and with variable volume means (2), integral to said tube (1) and suitable to vary the total diameter of the tube, that is its encumbrance in the lumen of the trachea; tube (1) characterized in that said variable volume means (2) are shaped and / or positioned so that their expansion maintains said means (3) suitable to emit a radiation light substantially near the tracheal wall (P), that is in a position in which the means (3) are disposed substantially in contact with a wall (P) of the same trachea.

An apparatus for accurately measuring the body temperature of a patient at the tracheal wall of the patient. The apparatus includes a novel handheld temperature readout assembly that is easy to use by the caregiver and one which clearly and accurately displays the temperature of the patient. The handheld temperature readout assembly includes a handheld housing having a viewing window and a light emitting diode temperature display that is carried by the housing and is readily viewable through the viewing window of the handheld housing for displaying the patient temperature. The apparatus also includes a built-in alarm system to alert to high and low body temperatures.

The invention discloses a method for establishing an animal model of tracheostenosis and equipment thereof. The method comprises the steps of: selecting one intubation catheter with a sacculus; carrying out orotracheal intubation on an experimental animal, injecting gas in the sacculus and fixing the intubation catheter, wherein the air pressure injected into the sacculus is 175-225 mmHg, and the intubation catheter is kept for 18-25h; and pulling out the intubation catheter, wherein 1-3 weeks after the intubation catheter is pulled out, tracheostenosis is formed because of local granulation scar tissue proliferation and the tracheal collapse of the tracheal wall of the experimental animal. The invention also discloses the equipment for realizing the method. The method and the equipment, disclosed by the invention, have the advantages that simplicity and convenience are brought in operation, the repeatability is good and the real process of the generation of tracheostenosis of a clinical patient after endotracheal intubation is simulated, therefore the stable and reliable animal model of tracheostenosis for the research of benign airway stenosis is provided.

A tracheostomy is performed using an access device and a separate ventilation device. The access device is introduced through a surgical opening in the tracheal wall and has an anchor which is expanded in situ to hold the access device in place. The ventilation device is introduced through a passage in the access device and has an expandable cuff which is oriented above the access point through the tracheal wall. A concavity in the expandable cuff collects body secretions, and other materials from the oral and nasal cavities and / or gastro-intestinal reflux into the trachea, and the collected secretions are removed by aspiration through a lumen provided in the ventilation device. A one-way valve may be provided in the expandable cuff in order to permit exhalation through the larynx to assist in speech.

A device (11) for facilitating tracheotomy. The device comprises a first branch (92), which is adapted to be introduced down the trachea of a patient, such that the end thereof is located below the larynx, and a second branch (114), adapted to be arranged on the outside of the neck with the end thereof located adjacent to the site intended for the tracheostoma. The end of the second branch comprises a guiding tube for a needle, and the end of the first branch comprises a protection plate. When the needle is moved towards the skin through the guiding tube and penetrates the skin and tracheal wall in order to provide said tracheostoma, the needle is directed towards the protection plate, and may engage it after passage through the tracheal wall. In such a manner the other side of the tracheal wall is protected. Furthermore, the tracheostoma will automatically be located at the best position.