15 results about "Tracheal bronchus" patented technology

1. Name of the product in this design: Bronchoscope. 2. Purpose of this design: for the examination, diagnosis and treatment of the trachea and bronchi. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

An automatic control system for a tracheobronchial pneumatic stimulator (10) intended to be connected to a subject, the stimulator (10) comprising: a pressure unit (13) configured to generate a set of negative pressure pulses during a relaxation exhalation of the subject, each pulse corresponding to an output of the pressure unit (13); and a connection assembly (11, 12) configured to connect the pressure unit (13) to the subject's respiratory system. The control system comprises: a pressure sensor (15) configured to measure an internal negative pressure (P) applied to the subject's respiratory system corresponding to each pulse after it is generated by the pressure unit (13); a calculation module (32) configured to compare in real time the absolute value of the measured internal negative pressure (P) with a predetermined threshold (S) and, based on the comparison result, determine an updated output value to be applied to the pressure unit (13) such that the absolute value of the subsequent internal negative pressure (P) corresponding to the updated output value is less than the absolute value of the threshold (S); and a control module (33) configured to apply the updated output value to the pressure unit (13) before the generation of the next pulse.

Disclosed is a device for stimulating the tracheobronchial air of a patient suffering from an obstructive ventilatory disorder and able to modify the rheology of his tracheobronchial mucus, which includes a negative pressure generator, a physiological interface able to interface the device with the patient's respiratory apparatus, a connection pipe connecting the physiological interface to the negative pressure generator, and a control circuit capable of controlling the negative pressure generator, during the passive expiration phase, for the application of a succession of alternation of negative pressure and venting impulses with a determined frequency and a duty cycle determined during a first part of an expiration cycle and then a second frequency and a second duty cycle during a second part of the expiration cycle and to reiterate a defined number of expiration cycles.

Devices, systems, and methods for localized delivery of a chemotherapy, hormonal therapy, or targeted drug / biologic therapy to a target tissue area of an internal body organ of a patient. Computer systems may be used for planning and navigation in super selective drug delivery via a tracheobronchial airway. A catheter may be used to form a sealed treatment chamber in a natural lumen extending through the target tissue area. Air is purged from the chamber, which is then filled with a liquid drug solution for an adequate treatment session time, solution volume and drug concentration to saturate the target tissue area, thereby providing the treatment. The liquid drug solution may be circulated or recirculated through the chamber or maintained stationary therewithin to saturate the target tissue area. The chamber is evacuated at the end of the treatment session.

The invention provides a dry powder inhalation preparation taking enoxone as an active ingredient. The preparation is small in particle size, high in lung delivery efficiency, small in dosage and capable of remarkably improving the medication compliance of patients. The dry powder inhalation preparation can significantly reduce the level of white blood cells in pulmonary alveolar lavage fluid of a bronchial asthma rat model, improve the lung function and the lesion degree of trachea, bronchus and lung, and has an obvious treatment effect on bronchial asthma.

The utility model relates to the field of medical equipment, and discloses an atomizing device capable of being connected with an autonomous breathing machine for medicine inhalation, which comprises an atomizing cup, the top of the front side wall of the atomizing cup is communicated and connected with an atomizing nozzle, the top of the atomizing nozzle is rotatably connected with a top plate, the inside of the top plate is fixedly connected with a sealing ring, and the sealing ring is fixedly connected with the atomizing nozzle. The rear side wall of the top plate is fixedly connected with a pressing buckle plate. Through the arrangement of the atomizing cup, the atomizing nozzle, the conductive probe, the three-way pipe and the five-way pipe, the problems that the treatment time is prolonged, and the workload and operation complexity of medical staff are reduced for patients who have serious illness conditions and need quick-acting medicine can be solved; the hole in the front end of the right part of the five-way tube is connected with the rear end of the atomizing cup, so that the medicine mist can be directly adsorbed to the oral cavity, the throat, the trachea, the bronchus, the pulmonary alveolus and the like of a patient and is absorbed by the mucosa of the patient to achieve the aim of treatment.

A system and method for simulating a human respiratory system to facilitate investigating the functioning of the respiratory system, such as the generation and effects of secondhand smoke. An aerosol generator, which may include an atomizer, is configured to generate an aerosol. A series of filter media includes, in order, an inhaling extrathoracic filter media, an inhaling tracheobronchial filter media, an alveolar filter media, an exhaling tracheobronchial filter media, and an exhaling extrathoracic filter media. Each filter media includes one or more layers of a material having a fiber diameter and a weight that simulate the corresponding region of the respiratory system. A conduit may be configured to define a path for the aerosol from the aerosol generator through the series of filter media. An instrument, such as a scanning mobility particle sizer, may be used to measure a property of a secondhand aerosol exiting the exhaling extrathoracic filter media.

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 relates to a breathable non-woven fabric structure with adjustable heat preservation performance, in particular to a breathable non-woven fabric structure with adjustable heat preservation performance and a heat preservation adjusting method. Comprising ventilation units and bronchus-shaped micro air pipes, the multiple ventilation units are arranged on branch pipes of the bronchus-shaped micro air pipes, the branch pipes of the bronchus-shaped micro air pipes are communicated with the ventilation units, each ventilation unit comprises microbubbles, and ventilation holes are formed in the center positions of the microbubbles. According to the non-fabric structure, the ventilation flow of the non-fabric structure can be regulated and controlled, so that the thermal insulation performance of the non-fabric structure is regulated and controlled.

Provided in the present invention is an inhalable dry powder formulation using enoximone as an active ingredient. The formulation features small particle size, high lung delivery efficiency, and low dosage in use, and can significantly improve patient compliance in drug administration. The inhalable dry powder formulation can significantly reduce the leukocyte level in the alveolar lavage fluid of the bronchial asthma rat model and improve the lung function and ameliorate the disease state of the trachea, bronchus, and lung, demonstrating significant therapeutic effect on bronchial asthma.

The utility model belongs to the technical field of bronchus plugging suites, and particularly relates to a bronchus plugging suite. Comprising a plugging device, a visual catheter, a connecting pipe and a sputum suction assembly, a first assembling pipe is arranged on the upper side of the periphery of the connecting pipe, a second assembling pipe is obliquely arranged on the lower side of the periphery of the connecting pipe, and a sealing assembly is arranged at the end, away from the connecting pipe, of the second assembling pipe; a mounting groove is formed in the tube wall of the visual catheter, a threaded steel wire is fixedly mounted in the mounting groove, a small cuff and a large cuff are mounted on the left side of the periphery of the visual catheter respectively and provided with inflation tubes, and one end of each inflation tube extends out of the visual catheter and is fixedly connected with a connector. The tracheobronchial ventilation device is simple in structure and reasonable in design, can be used for performing single-lung ventilation on patients with various tracheobronchial anatomical structures during use, is easy to implant, has small injury, is not easy to pollute the lens, and is easy to wash and suck sputum even if the lens is polluted.

An endobronchial tube is provided that includes a medical tube comprising an endotracheal portion and a bronchial portion having a common single lumen extending between a proximal end and a distal end of the tube, a first endotracheal inflatable cuff for sealing against a trachea of a patient, a second endotracheal inflatable cuff positioned distal to the first endotracheal inflatable cuff for sealing against the trachea of the patient; a bronchial inflatable cuff positioned near a distal end of the medical tube after the first endotracheal inflatable cuff and the second endotracheal inflatable cuff, for sealing the left main stem bronchi of the patient, an intraluminal balloon blocker positioned along an inner surface of the bronchial portion for sealing the common single lumen at the distal end of the bronchial portion, and an aperture positioned between the endotracheal portion and the bronchial portion.

The invention discloses a fiber bronchoscope oral tracheal intubation guiding device, and relates to the field of bronchoscopy, the fiber bronchoscope oral tracheal intubation guiding device comprises a tracheal tube body and a fixing sleeve arranged on the outer side of the bottom end of the tracheal tube body, the right end of the fixing sleeve is fixedly provided with a traction rope, the side face of the tracheal tube body is provided with a hole, and the middle end of the traction rope penetrates through the hole. According to the orotracheal intubation guiding device for the fiberoptic bronchoscope, a fixing sleeve is arranged at the bottom of a trachea body, the side face of the fixing sleeve is connected with a traction rope, the traction rope adopts an eighth surgical incision suture line, and the end portion of the traction rope penetrates into a hole in the side face of the trachea body and penetrates out of the upper end of the trachea body. By pulling the pulling rope, the fixing sleeve can be dragged to drive the end of the trachea body to generate angle change, the trachea body can extend to a target position conveniently, oxygen can be connected to the outer end of the catheter subsequently, the oxygen is directly fed into the trachea and the bronchus, and low, medium and high flow ventilation is achieved.

The invention provides an application of exosomes secreted by autologous stem cell culture in bronchitis COPD treatment, based on an autologous adipose-derived stem cell (ADSCs) organ-like cell directional culture technology, stem cells are induced to be differentiated into bronchial organ-like cells, the exosomes secreted by the bronchial organ-like cells are collected, and the COPD treatment of bronchitis is realized. Through atomization administration, chronic bronchitis, acute bronchitis and chronic bronchitis can be treated. The exosome of the tissue cells of the autologous bronchial mucosa directly reaches the bronchial mucosa through aerosol inhalation, and plays a role through the following ways: anti-inflammation: inhibiting an NF-kappa B pathway, and reducing the release of IL-6 and TNF-alpha; epithelium repair: activating a Wnt / beta-catenin signal to promote basal cell proliferation and enhance a mucus cilia removal function; immunoregulation: regulating and controlling polarization of macrophages to M2 anti-inflammatory phenotype. Therefore, local concentration is high, whole-body side effects are avoided, the whole path of trachea-bronchus-alveolus alveolus is covered, and precise targeted repair is achieved.

The utility model provides a pleural cavity pressure measurement simulation device. The pleural cavity pressure measurement simulation device comprises a carrier plate, a simulation head part, a simulation chest part and a simulation stomach part, an oral cavity channel and a nasal cavity channel are arranged in the simulated head; the simulated chest comprises a simulated esophagus, a simulated lung, a simulated trachea and a bronchus, the simulated chest is sealed by adopting a simulated chest cavity, a pressure sensor is arranged at a position corresponding to a pleural cavity, and a trachea cannula connecting port is arranged on the simulated trachea; the simulated esophagus is communicated with the oral cavity channel, the nasal cavity channel and the simulated stomach, and a prompt sensor is arranged at the position of two thirds of the middle lower portion of the simulated esophagus. The device can display the pressure condition in the thoracic cavity in real time, the simulated tracheal bronchus is connected with the simulated lung and can be connected with a breathing machine to simulate autonomous respiration and positive pressure ventilation conditions, and meanwhile, an esophageal pressure catheter can be placed through the nasal cavity to simulate how to determine the position of the esophageal pressure catheter. Meanwhile, the difference between the pressure measured by the esophageal catheter and the directly measured pressure is determined.