25results about "Iron-lungs" patented technology

The utility model relates to the technical field of medical equipment, in particular to a negative pressure device for adjuvant therapy of cardiac severe illness, which comprises a mounting plate and a negative pressure aspirator mounted on the upper end face of the mounting plate, sliding rails are fixedly connected to the left side and the right side of the lower end face of the mounting plate, and sliding blocks are slidably connected to the outer walls of the two sliding rails. A lead screw is rotationally connected between the two sliding blocks, the outer wall of the lead screw is movably connected with a movable block, the bottom end of the movable block is fixedly connected with a connecting rod, the two sliding blocks slide front and back to drive the negative pressure opening to move in the front-back direction, the lead screw is driven to rotate when the motor is started, and the lead screw drives the movable block on the outer wall of the lead screw to move left and right. Therefore, the negative pressure port can be driven to horizontally move left and right, flexible adjustment of the position of the negative pressure port is achieved, the adjusting range is wide, after position adjustment, the electromagnet is started, the electromagnet is attracted and fixed to the metal plate at the top end, the position of the negative pressure port is fixed, follow-up negative pressure attraction work is facilitated, fixing is convenient, and operation is convenient.

Systems and methods related to the field of cardiac resuscitation, and in particular to devices for assisting rescuers in performing cardio-pulmonary resuscitation (CPR) are described herein. The system includes an applicator device configured to provide ACD CPR treatment to a patient's chest according to a plurality of phases at least one sensor configured to be coupled to the patient's chest and to measure at least one parameter related to the ACD CPR treatment and information for determining whether at least one transition point of the ACD CPR treatment has been reached; and one or more processors configured to provide a feedback signal based on a parameter for administering ACD CPR treatment to the patient's chest according to a desired treatment protocol.

Provided herein is a device comprising a cuirass, which includes a shell, at least one sensor, a pressure creation means for providing at least one of a negative pressure or a positive pressure within the shell, and a controller operably connected to the pressure creation means, wherein the controller is adapted to receive an input signal from the at least one sensor and adapted to provide an output signal to the pressure creation means, and wherein the pressure creation means is adapted to provide a greater or lesser amount of pressure within the shell in response to the output signal. Also provided are methods of use.

A mechanical ventilation system comprises a plurality of ventilation therapy sub-systems. Each of the ventilation therapy sub-systems is adapted to assist a respiratory function of the patient. The system also comprises a detector of the respiratory drive of the patient, an operator interface receiving one or more control parameters, and a main controller. The main controller assigns a therapeutic contribution to each of the ventilation therapy sub-systems based on the respiratory drive of the patient and on the control parameters. The controller modulates the respiratory drive of a patient by controlling each of the plurality of the ventilation therapy sub-systems according to its assigned therapeutic contribution. Distinct ventilation therapy sub-systems may apply negative pressure on the abdomen of the patient, deliver a non-pressurizing inspiratory flow to the patient, or induce a positive pressure in the airways of the patient.

A system for performing an active compression decompression (ACD) treatment on a patient includes a platform for placement under a patient, a chest compression actuator that may include a belt configured to extend over a thorax of the patient, an upward force actuator, a coupling mechanism for coupling the upward force actuator to the thorax of the patient to transfer a decompressing force from the upward force actuator to the thorax of the patient, and a motor that is coupled to the belt, the motor configured to cause the belt to tighten about the thorax of the patient and exert a compressing force on the thorax of the patient; and cause the belt to loosen about the thorax of the patient and allow the upward force actuator to cause decompression of the patient.

Ventilator, consisting of at least: • a breathing gas pump (1), • a connection (2) for a ventilation device, • a connection for external and / or integrated measuring devices (3) for measuring respiratory and / or device measurements, • Storage devices (4) for measurement data, • a data processing device (5) for calculating and / or transmitting control parameters which at least temporarily influence at least one device function; characterized in that the ventilator is designed such that during its operation: • temporarily perform measurements with the measuring instruments (3), the measurement data of which are stored in the storage instruments (4), without the data processing device (5) calculating control parameters from this and without the measurement data stored during this time being able to influence the device control; • temporary measurement data from the measuring means (3) and / or storage data from the storage means (4) are provided by the data processing device (5) as control parameters with or without further calculations, wherein the data processing device (5) performs an analysis of the flow history, and influence at least one device function, wherein a separate control device (6) or a control device integrated into the data processing device (5) is designed to determine whether and when the data processing device (5) provides control parameters and whether and when such control parameters influence at least one device function.

The invention discloses a respiratory support system and method with in-vitro negative pressure cooperating with electrical stimulation. The method comprises the steps that a signal detection module collects body surface respiratory muscle electromyography, thoracic posture, thoracico-abdominal deformation and respiratory airflow signals of a patient in real time; the negative pressure ventilation module generates negative pressure outside the thorax of the patient through a thoracic nail, a vacuum pump, a pressure reducing valve and a two-position three-way valve to reduce the pressure of a pleural cavity and pulmonary alveoli; the constant-current electrical stimulation module applies constant-current electrical stimulation to the diaphragm to enhance the contractility of the diaphragm; the control module receives the respiratory physiological signal, judges the respiratory intention of a patient through a built-in respiratory intention recognition algorithm, and controls the negative pressure ventilation and electrical stimulation module to realize triggering of an inspiration phase and an expiration phase and man-machine synchronization; through the synergistic effect of negative pressure ventilation and electrical stimulation, the respiratory support effect and man-machine synchronism are improved, and the device is suitable for adjuvant therapy of respiratory dysfunction patients.

Methods for treating fluid overload in a subject comprise shifting fluids directly and non-invasively from an interstitial compartment of the subject to skin of the subject through controlled local sweating. Methods of the invention allow for removal of excess fluid from the interstitial compartment of the subject and treat fluid overload in the subject. Sweat stimulation systems comprise a chamber and first and second relative humidity sensors. The chamber is sized to fit around a body part of a subject, comprises an inlet and an outlet, and is configured such that air flows through the chamber from the inlet to the outlet. The first relative humidity sensor is operably located inside the inlet, and the second relative humidity sensor is operably located proximate the outlet.

The present disclosure relates to an exoskeleton robot for expectoration assistance and a control method. In the exoskeleton robot, a respiratory sensor acquires a respiratory signal of a user to be assisted; a positive pressure module covers an upper abdomen of the user to be assisted; a negative pressure module is arranged on an outer wall of a thoracic cavity of the user to be assisted and wraps the whole thoracic cavity, and a negative pressure cavity is formed between a housing of the negative pressure module and the outer wall of the thoracic cavity; in an inhalation state, the rigidity of the housing of the negative pressure module increases; in an exhalation state, the rigidity of the housing of the negative pressure module decreases; the control module is respectively connected with the respiratory sensor, the positive pressure module, and the negative pressure module.

Systems and methods related to the field of cardiac resuscitation, and in particular to devices for assisting rescuers in performing cardio-pulmonary resuscitation (CPR) are described herein. The system includes an applicator device configured to provide ACD CPR treatment to a patient's chest according to a plurality of phases at least one sensor configured to be coupled to the patient's chest and to measure at least one parameter related to the ACD CPR treatment and information for determining whether at least one transition point of the ACD CPR treatment has been reached; and one or more processors configured to provide a feedback signal based on a parameter for administering ACD CPR treatment to the patient's chest according to a desired treatment protocol.

Systems and methods related to the field of cardiac resuscitation, and in particular to devices for assisting rescuers in performing cardio-pulmonary resuscitation (CPR) are described herein. The system includes an applicator device configured to provide ACD CPR treatment to a patient's chest according to a plurality of phases at least one sensor configured to be coupled to the patient's chest and to measure at least one parameter related to the ACD CPR treatment and information for determining whether at least one transition point of the ACD CPR treatment has been reached; and one or more processors configured to provide a feedback signal based on a parameter for administering ACD CPR treatment to the patient's chest according to a desired treatment protocol.

An exemplary method and pneumatic vest system (also referred to herein as a V / Q vest) are disclosed for improving oxygenation that can reproduce the effects of proning treatment. The exemplary pneumatic vest can be used synergistically with proning, as a replacement therapy for proning treatment, and / or to monitor or assess whether patients would respond well to a proning treatment. The exemplary pneumatic vest can be integrated with sensors and intubation equipment. The compression vest system can integrate a mechanical ventilator with a pneumatic compression vest to improve oxygenation, provide potential alternative or bridge to proning patients, and / or reduce mechanical ventilatory morbidity.

A distension / compression device for assisting breathing in a subject in one embodiment includes a first tube includes a flexible and elastic material that forms a first tube lumen extending from a proximal end to a distal end of the first tube. Longitudinal expansion of the first tube is restricted less than radial expansion of the first tube. A connection element including a first air supply port is in fluid communication with an open proximal end of the first tube lumen and attached to a proximal end of the first tube. A method for assisting breathing of a patient and a method for assisting the clearing of secretions is also included.

The present disclosure provides a wearable breath tracking device, and a system and method for operation of the device. The system includes a wearable breath tracking device adapted to be removably fitted on a nose of a user. The device includes a first set of sensors adapted to be positioned inside one or both nostrils of the user and configured to generate signals indicative of an air pressure. The system further includes a controller configured to receive, from the first set of sensors, signals indicative of the air pressure in one or both nostrils of the user; determine a peak air pressure difference defined as a deviation in values of air pressure from a mean value of air pressure during a predefined duration of time; and evaluate a breathing score based on peak air pressure difference. The breathing score is indicative of breathing fitness and health of the user.

An exemplary method and pneumatic vest system (also referred to herein as a V / Q vest) are disclosed for improving oxygenation that can reproduce the effects of proning treatment. The exemplary pneumatic vest can be used synergistically with proning, as a replacement therapy for proning treatment, and / or to monitor or assess whether patients would respond well to a proning treatment. The exemplary pneumatic vest can be integrated with sensors and intubation equipment. The compression vest system can integrate a mechanical ventilator with a pneumatic compression vest to improve oxygenation, provide potential alternative or bridge to proning patients, and / or reduce mechanical ventilatory morbidity.

A device for treating vascular insufficiency is described. The device includes a flexible and elastic tubular structure attached to a base layer. The flexible and elastic tubular structure include an air inlet, where longitudinal expansion of a first portion of the tubular structure is less restricted than radial expansion of the first portion of the tubular structure. A fastener is attached to the base layer and configured to fasten the base layer circumferentially around a limb. A method for treating vascular insufficiency is also described.

The invention relates to a device (10) for selective regionalization of pulmonary aeration, intended to apply a vacuum over a posterolateral part of a patient's chest wall, said device comprising a rigid or semi-rigid shell (11) intended to selectively surround a posterior part of the patient's chest wall, and a layer of honeycomb material (12) covering an internal wall (13) of the rigid shell, intended to be in contact with the patient's chest wall, said shell comprising at least one through hole (14), intended to be connected to a negative pressure generator.

Methods for treating fluid overload in a subject comprise shifting fluids directly and non-invasively from an interstitial compartment of the subject to skin of the subject through controlled local sweating. Methods of the invention allow for removal of excess fluid from the interstitial compartment of the subject and treat fluid overload in the subject. Sweat stimulation systems comprise a chamber and first and second relative humidity sensors. The chamber is sized to fit around a body part of a subject, comprises an inlet and an outlet, and is configured such that air flows through the chamber from the inlet to the outlet. The first relative humidity sensor is operably located inside the inlet, and the second relative humidity sensor is operably located proximate the outlet.

A pulmonary expansion therapy (PXT) device may be a handheld or wearable device that covers specific lung fields and may generate negative pressure fields locally. The device also may provide vibratory / percussion therapy for airway clearance. The PXT may generate a localized negative pressure field non-invasively to the exterior of the chest wall, thereby increasing the functional residual capacity in underlying lung fields. As a result, increased ventilation and perfusion to the targeted internal lung field may be achieved by creating a decrease in the external barometric pressure relative to the more positive intrinsic airway pressures. The PXT device also may improve lung compliance by elevating the chest wall to compensate for the dysfunction of the respiratory musculature responsible for lifting the chest wall. In some embodiments, once a targeted functional residual capacity (FRC) has been established, vibration or percussion may be applied.

A system includes a guidance device that provides feedback to a user to compress a patient's chest at a rate of between about 90 and 110 compressions per minute and at a depth of between about 4.5 centimeters to about 6 centimeters. The system includes a pressure regulation system having a pressure-responsive valve that is configured to be coupled to a patient's airway. The pressure-responsive valve is configured to remain closed during successive chest compressions in order to permit removal at least about 200 ml from the lungs in order to lower intracranial pressure to improve survival with favorable neurological function. The pressure-responsive valve is configured to remain closed until the negative pressure within the patient's airway reaches about −7 cm H2O, at which time the pressure-responsive valve is configured to open to provide respiratory gases to flow to the lungs through the pressure-responsive valve.

A mechanical ventilation system comprises a plurality of ventilation therapy sub-systems. Each of the ventilation therapy sub-systems is adapted to assist a respiratory function of the patient. The system also comprises a detector of the respiratory drive of the patient, an operator interface receiving one or more control parameters, and a main controller. The main controller assigns a therapeutic contribution to each of the ventilation therapy sub-systems based on the respiratory drive of the patient and on the control parameters. The controller modulates the respiratory drive of a patient by controlling each of the plurality of the ventilation therapy sub-systems according to its assigned therapeutic contribution. Distinct ventilation therapy sub-systems may apply negative pressure on the abdomen of the patient, deliver a non-pressurizing inspiratory flow to the patient, or induce a positive pressure in the airways of the patient.

A negative pressure ventilator comprising a patient enclosure (100), and the enclosure is a structure which defines an internal space which is arranged to enclose the torso of a patient, and the pressure in the internal space is controllable, and the enclosure comprises a base (13), two distal ends and a top part (5) which is detachably connectable onto the base, each of the distal ends provided with an aperture, wherein, at least one of the distal ends (105) comprises an end window (7) which allows a patient a line of sight to view into the internal space.

An exemplary method and pneumatic vest system (also referred to herein as a V / Q vest) are disclosed for improving oxygenation that can reproduce the effects of proning treatment. The exemplary pneumatic vest can be used synergistically with proning, as a replacement therapy for proning treatment, and / or to monitor or assess whether patients would respond well to a proning treatment. The exemplary pneumatic vest can be integrated with sensors and intubation equipment. The compression vest system can integrate a mechanical ventilator with a pneumatic compression vest to improve oxygenation, provide potential alternative or bridge to proning patients, and / or reduce mechanical ventilatory morbidity.