Class / Patent application number | Description | Number of patent applications / Date published |
128204250 | Gas stream passed through jet nozzle or venturi passage | 25 |
20090107503 | NEBULIZING CATHETER SYSTEM AND METHODS OF USE AND MANUFACTURE - A method and apparatus for delivering a medicine to a patient via the patient's respiratory system with control and efficiency. A nebulization catheter is positioned in the patient's respiratory system so that a distal end of the nebulization catheter is in the respiratory system and a proximal end is outside the body. In a first aspect, the nebulization catheter may be used in conjunction with an endotracheal tube and preferably is removable from the endotracheal tube. The nebulization catheter conveys medicine in liquid form to the distal end at which location the medicine is nebulized by a pressurized gas or other nebulizing mechanism. The nebulized medicine is conveyed to the patient's lungs by the patient's respiration which may be assisted by a ventilator. By producing the aerosol of the liquid medicine at a location inside the patient's respiratory system, the nebulizing catheter provides for increased efficiency and control of the dosage of medicine being delivered. In further aspects of the nebulizing catheter apparatus and method, alternative tip constructions, flow pulsation patterns, centering devices, sensing devices, and aspiration features afford greater efficiency and control of aerosolized medicine dosage delivery. | 04-30-2009 |
20090151726 | TRACHEAL CATHETER AND PROSTHESIS AND METHOD OF RESPIRATORY SUPPORT OF A PATIENT - A method and apparatus is described for supporting the respiration of a patient. The spontaneous respiration of a patient can be detected by sensors and during inhalation an additional amount of oxygen can be administered to the lungs via a jet gas current. If required, during exhalation a countercurrent can be administered to avoid collapse of the respiration paths. This therapy can be realized by an apparatus including a transtracheal catheter, an oxygen pump connected to an oxygen source, spontaneous respiration sensor(s) connected to a control unit for activating the oxygen pump and, if needed, a tracheal prosthesis. The tracheal prosthesis may include a connection for the catheter and the breath sensor(s). The tracheal prosthesis, if used, and the catheter can be dimensioned so the patient can freely breathe, cough, swallow and speak without restriction, and the system can be wearable to promote mobility. | 06-18-2009 |
20090165799 | CONTINUOUS POSITIVE AIRWAY PRESSURE DEVICE - A continuous positive airway pressure system features a housing forming an airway chamber, and an air pressure inlet and an air pressure outlet. The housing further defines internally a pair of tapered air jets, and a pair of tapered air receivers. The air receivers are located downstream of the air supply jets and disposed coaxially with respective ones of the air supply jets. Each receiver has a taper in an opposite direction to the direction of the taper of the air supply jets. A pair of nasal prongs is located downstream of the air receiving jets. | 07-02-2009 |
20100252044 | CONTINUOUS POSITIVE AIRWAY PRESSURE DEVICE AND METHOD - A continuous positive airway pressure system features a housing forming an airway chamber, and an air pressure inlet and an air pressure outlet. The housing further defines internally a pair of tapered air jets, and a pair of tapered air receivers. The air receivers are located downstream of the air supply jets and disposed coaxially with respective ones of the air supply jets. Each receiver has a taper in an opposite direction to the direction of the taper of the air supply jets. A pair of nasal prongs is located downstream of the air receiving jets. Each receiver comprises a hemispherical section that is oriented at an angle off the center line of the supply. | 10-07-2010 |
20110067698 | HANDHELD DEVICE FOR DELIVERING CONTINUOUS POSITIVE AIRWAY PRESSURE - A hand held CPAP device for providing a continuous positive airway pressure where pressure is generated by a flow of gas from a demand valve by the interaction of an adjustable compression spring compressing the demand valve actuating diaphragm. | 03-24-2011 |
20120080034 | NON-INVASIVE BREATHING ASSISTANCE DEVICE WITH FLOW DIRECTOR - An nCPAP device for assisting patient breathing includes a generator body forming an inlet, a chamber, and first and second flow circuits. The chamber directs pressurized gas from the inlet to the flow circuits. The flow circuits each include a first and second jets, a flow director and an exhaust conduit. The jets emit a jetstream into the flow director in a direction of a patient side thereof. In some embodiments, the flow director forms a first tapered wall section directing inhaled air toward the patient and a second tapered wall section directing exhaled air toward the exhaust conduit. The generator body requires reduced driving pressures to achieve target CPAP levels and reduces total imposed WOB as compared to conventional designs. | 04-05-2012 |
20120097164 | APPARATUSES AND METHODS FOR POSITIVE EXPIRATORY PRESSURE THERAPY - A positive expiratory pressure device (PEP) has one or more of the following features, alone or in any combination: 1) a combination of oscillation PEP therapy and standard PEP therapy, 2) use of microwavable materials, 3) use of an oscillation rocker that produces a venturi effect, 4) use of a flexible tube to create the air pressure oscillation, 5) use of a rotating wheel to open and close the air channel and create air pressure oscillation, 6) use of a variable cross section air channel to generate different air flow resistance for providing multiple levels of constant pressure therapy, 7) use of a flexible air flow stopper plate with adjustable pivot point to generate different air flow resistance for providing multiple levels of constant pressure therapy, and 8) use of a selection switch that allows the device to switch between standard PEP therapy and oscillatory PEP therapy. | 04-26-2012 |
20120174927 | CONTINUOUS POSITIVE AIRWAY PRESSURE DEVICE - A continuous positive airway pressure system features a housing forming an airway chamber, and an air pressure inlet and an air pressure outlet. The housing further defines internally a pair of tapered air jets, and a pair of tapered air receivers. The air receivers are located downstream of the air supply jets and disposed coaxially with respective ones of the air supply jets. Each receiver has a taper in an opposite direction to the direction of the taper of the air supply jets. A pair of nasal prongs is located downstream of the air receiving jets. | 07-12-2012 |
20130092165 | Nasal Ventilation Cannula System and Methods - A nasal cannula ventilation system is described for treating lung disease or for exercise conditioning, incorporating a Venturi system. The ventilation cannula comprises unique positioning features to positively locate a gas delivery nozzle in an optimal location to optimize Venturi performance, patient comfort and fitment to the patient. The cannula is low profile, making it as realistic to wear and use as a standard oxygen cannula, and is simple rending the cost reasonable. The ventilation cannula uses a simple low cost ventilator as a gas delivery control system which is compatible with existing gas sources. The system is used (1) during stationary use to unrest the respiratory muscles to increase tolerance to activity after a treatment session, or (2) to enable activity within a distance from a stationary gas source, (3) during ambulatory use using a portable gas source to enable mobility, and (4) for enhanced fitness conditioning. | 04-18-2013 |
20130199535 | GAS DELIVERY VENTURI - A venturi connector includes a housing having a mixing chamber defined therein and at least one window that is in fluid communication with the mixing chamber and is open to atmosphere to allow air to be entrained into the mixing chamber. The connector includes a nozzle actuator member includes a body having a plurality of discrete nozzles formed therein. The nozzles are defined by different sized venturi orifices through which gas flows, thereby allowing the concentration of the gas delivered to the patient to be varied. The nozzle actuator member is disposed within one window formed in the housing between the gas port and the mixing chamber such that the position of the nozzle actuator member within the housing can be adjusted so as to position one of the discrete nozzles into the gas flow path, thereby controlling the flow rate of the gas into the mixing chamber and ultimately the concentration of gas delivered to the patient. | 08-08-2013 |
20130263856 | ENTRAINMENT COVER AND INTAKE MODULE HAVING THE SAME - An intake module includes an outer tube body defining an intake chamber and having an intake end, and an inner tube body disposed in the outer tube body and having an intake hole communicating with the intake chamber. An intake lid covers the intake end and has an inlet hole for allowing the intake chamber to be in fluid communication with the outside so that a compressed gas is fed into the inlet hole. A needle tube defines a jet hole for spraying the compressed gas from the needle tube into the intake hole. When the compressed gas is delivered from the intake lid into the inner tube body, air is drawn into the intake hole to mix with the compressed gas according to Venturi effect. | 10-10-2013 |
20140053841 | Optimized Breathing Assistance Device - A breathing assistance device with improved pressure characteristics is disclosed. The device is capable of providing a high level of CPAP per unit of supplementary respirable gas consumed while maintaining low CPAP fluctuations throughout the breath cycle. The invention further optionally comprises a manometer for monitoring pressure and a safety pressure relief valve as additional safety measures against overpressure delivered to a patient. The device may be made to be completely disposable for one-time or single patient use. | 02-27-2014 |
20140076320 | NON-INVASIVE BREATHING ASSISTANCE APPARATUS AND METHOD - An nCPAP device for assisting patient breathing includes a generator body forming an inlet, a chamber, and first and second flow circuits. The chamber directs pressurized gas from the inlet to the flow circuits. The flow circuits each include a nozzle, a channel, and at least one port. The nozzle emits a jet stream into the channel in a direction of a patient side thereof. The port fluidly connects the channel to ambient, and promotes entrainment of ambient air with the jet stream. In some embodiments, the channel forms a ramp feature directing exhaled air toward the jet stream in an angular fashion. The generator body requires reduced driving pressures to achieve target CPAP levels and reduces total imposed WOB as compared to conventional designs. | 03-20-2014 |
20140116443 | EXPIRATORY THERAPY DEVICE - An expiratory therapy device includes: a flow-adjusting member defining an upper chamber and a lower chamber and having an inner tube that defines an inner chamber and that is formed with wall openings; a driving member; an opening-controlling member including a cylindrical valve that is formed with wall apertures and that is driven by the driving member; and a flow rate-enhancing member including a venturi tube that is connected to the flow-adjusting member, that has an air entrainment port, and that is provided with a jet-forming member defining a venturi orifice. The flow rate-enhancing member generates the venturi effect, such that outside air is entrained into the venturi tube through the air entrainment port and flows into the upper chamber. | 05-01-2014 |
20140158133 | Nasal Venti System - A portable nasal ventilation assembly and system having a nasal piece with fluid delivery ports which engage and occlude the nares of a patient and provides sustained oxygen saturations greater than 90% with lung afflictions requiring high-flows such as Pulmonary Fibrosis. The assembly is noninvasive and does not require the use of positive pressure machines that can only be used within the confines of a hospital intensive care unit. It can be used on patients with different respiratory problems. Patients on the system can be home while awaiting further hospital treatment, such as (for example) a lung transplant, for a fraction of the cost of a hospital stay. Although the system does not replace ventilator devices, it is effective for spontaneously breathing patients that require ventilators to maintain an adequate life sustaining oxygen level. The device allows for portability and can reduce hospital stay and cost dramatically. | 06-12-2014 |
20140305436 | PUMP UNIT AND RESPIRATORY ASSISTANCE DEVICE - A pump unit includes a micro pump and an assist mechanism. The micro pump includes: a housing having an inflow port and an outflow port; and a pump device built in the housing, the pump device transporting a fluid from the inflow port to the outflow port. The assist mechanism includes a jet nozzle for jetting a fluid. A jet port is opened at a tip portion of the jet nozzle. The assist mechanism is disposed in such a manner that a gap through which a fluid outside can flow is formed between the tip portion and the housing. The jet port is located in proximity to the inflow port. The jet port directly faces the inflow port. | 10-16-2014 |
20140366880 | Adjustable non-rebreathing nasal cannula - The current embodiment shows a portable, adjustable, oxygen delivery system. This embodiment delivers up to one-hundred percent oxygen while simultaneously conserving oxygen during the user's exhalation phase. The current embodiment contains an air-entrainment system (FIG. | 12-18-2014 |
20150101610 | OPENING AND CLOSING DEVICE AND RESPIRATORY ASSISTANCE DEVICE - A respiratory assistance device | 04-16-2015 |
20150328426 | GAS FLOW REVERSING ELEMENT - A gas flow reversing element is provided comprising a main piece defining at least one closable outlet opening, a branching piece extending from the main piece, a line connector connected to the distal end of the branching piece, a pressure connector connected to the main piece, the pressure connector being structured to be fluidly connected to a pressurized gas supply; and a nozzle being configured and arranged in the main piece in such a way that a gas flow flowing in the main piece from the pressure connector through the nozzle to the at least one outlet opening, with the at least one outlet opening being disposed in the second open position, a gas flow can also be generated in the branching piece in a direction toward the at least one outlet opening. | 11-19-2015 |
20150335851 | DISCREET RESPIRATORY THERAPY SYSTEM - A device provides respiratory treatment such as for sleep disordered breathing and other respiratory conditions in a discreet configuration to provide a minimally invasive system. The system may include a flow pressurizer apparatus configured to generate a pressurized flow of air through a small bore delivery conduit toward a patient interface. The system may further include a treatment compensator coupled with the fine bore delivery conduit. The treatment compensator may be configured at the patient interface to reduce pressure for patient inspiration. A processor may control adjustments to the pressure generated by the flow pressurizer apparatus. | 11-26-2015 |
20160030776 | FULL HOOD RESPIRATOR - Full hood respirator comprising a fluidtight flexible bag intended to be slipped over the head of a user, the flexible bag being provided with a transparent window and comprising, in its lower part, a rigid base element of annular overall shape intended to be positioned around the neck of the user, the base element comprising a tubular oxygen reservoir of pressurized oxygen provided with a calibrated outlet orifice opening into the internal volume of the flexible bag, characterized in that the base element comprises at least two rigid parts connected by an articulation, the two parts being movable relative to one another between a furled first position that prevents a head from entering the hood through the base element and an unfurled position of use that allows a head to enter the hood through the base element. | 02-04-2016 |
20160045689 | THERAPY DEVICE FOR TREATMENT OF RESPIRATORY DISEASES - In a therapeutic device ( | 02-18-2016 |
20160045692 | NASAL CONTINUOUS POSITIVE AIRWAY PRESSURE DEVICE - A nasal continuous positive airway pressure (nCPAP) device having a hollow body with a proximal wall, a distal wall, and an exhaust port extending through the distal wall. A proximal tubular member extends through the proximal wall of the body and is arranged such that a stream of gas entering the body through the proximal tubular member will exit the proximal tubular member in a first direction and then enter the exhaust port. A nozzle extends through the body and is arranged such that a stream of gas entering the body through the nozzle will exit the nozzle and then enter the proximal tubular member in a second direction that is opposite the first direction. | 02-18-2016 |
20160166789 | GAS FLOW REVERSING ELEMENT WITH BYPASS AND METHOD FOR CONTROLLING EXPIRATION OF A PATIENT | 06-16-2016 |
20170232224 | Bi-level Positive Airway Pressure Device | 08-17-2017 |