50 results about "Spontaneous respiration" patented technology

The invention relates to a method and an arrangement for reducing the volume of a patient's lung. A bronchial catheter (2) is introduced into a hyperexpanded lung area, and air is aspirated from there by means of an aspiration device (3). The associated segmental bronchus is then closed. According to the invention, the patient's spontaneous respiration is recorded by sensors (5), and aspiration of the air is carried out in synchrony with the patient's inhalation action. In order to prevent collapse of the associated segmental bronchus, a pressure generator is provided with which the associated segmental bronchus can be widened, by a compressed gas pulse, in synchrony with the aspiration. The pressure generator can be activated as a function of the aspirated air stream, which is monitored with a measuring device.

A system for reducing airway obstructions of a patient may include a ventilator, a control unit, a gas delivery circuit with a proximal end in fluid communication with the ventilator and a distal end in fluid communication with a nasal interface, and a nasal interface. The nasal interface may include at least one jet nozzle, and at least one spontaneous respiration sensor in communication with the control unit for detecting a respiration effort pattern and a need for supporting airway patency. The system may be open to ambient. The control unit may determine more than one gas output velocities. The more than one gas output velocities may be synchronized with different parts of a spontaneous breath effort cycle, and a gas output velocity may be determined by a need for supporting airway patency.

Improved methodology and apparatus for the clinical study and treatment of sleep apnea which incorporates one or more of the following features: (1) application of mono-level, alternating high and low level, or variable positive airway pressure generally within the airway of the patient with the mono-level, high and low level, or variable airway pressure generally being coordinated with and/or responsive to the spontaneous respiration of the patient, (2) usage of adjustably programmable pressure ramp circuitry capable of producing multiple pressure ramp cycles of predetermined duration and pattern whereby the ramp cycles may be customized to accommodate the specific needs of an individual sleep apnea patient so as to ease the patient's transition from wakefulness to sleep, (3) remote control or patient-sensed operation of the apparatus, (4) employment of safety circuitry, reset circuitry and minimum system leak assurance circuitry, controls and methods, and (5) utilization of clinical control circuitry whereby sleep disorder data may be compiled and appropriate therapy implemented during a one-night sleep study.

In a method for nasal ventilation and relevant apparatus, particularly for flow-synchronized neonatal assisted ventilation, wherein F(t) is a signal proportional to the ventilation flow, the following steps are performed:

• (a) inspiration, having a time length Ti, during which air is introduced at an inspiration pressure;
• (b) expiration, having a time length Te, during which the introduction of air is interrupted;
• (c) return to step (a);

with a flow threshold Ftr, during the expiration step (b) the following steps are provided:

(b1) a waiting step having a time length γ before activation of computation of the leakages; and

(b2) a step of leakage computation, having a time length δ, so that γ+δ=Te, wherein if a normalized signal F′ (t), obtained by a processing by way of an algorithm of the surveyed signal F(t), exceeds the threshold Ftr, a spontaneous respiration activity is detected and the inspiration step (a) is reactivated.

A system for providing ventilation support to a patient may include a ventilator, a control unit, a gas delivery circuit with a proximal end in fluid communication with the ventilator and a distal end in fluid communication with a nasal interface, and a nasal interface. The nasal interface may include at least one jet nozzle at the distal end of the gas delivery circuit; and at least one spontaneous respiration sensor for detecting respiration in communication with the control unit. The system may be open to ambient. The control unit may receive signals from the at least one spontaneous respiration sensor and determine gas delivery requirements. The ventilator may deliver gas at a velocity to entrain ambient air and increase lung volume or lung pressure above spontaneously breathing levels to assist in work of breathing, and deliver ventilation gas in a cyclical delivery pattern synchronized with a spontaneous breathing pattern.

The invention is relative to a method and an apparatus for supporting the respiration of a patient and to a tracheal prosthesis. According to the invention the spontaneous respiration of a patient is detected by sensors and at the end of an inhalation procedure an additional amount of oxygen is administered to the lungs via a jet gas current. This improves the absorption of oxygen during inhalation. If required, the exhalation procedure of the patient can be arrested or slowed by a countercurrent in order to avoid a collapse of the respiration paths in this manner. This procedure is realized by an apparatus comprising an oxygen pump that can be connected to an oxygen source and comprising a tracheal prosthesis that can be connected via a catheter. The spontaneous respiration of the patient is detected by sensors connected to a control unit for activating the oxygen pump. The tracheal prosthesis comprises a tubular support body with a connection for the catheter and two of the sensors are associated with the support body. The tracheal prosthesis and the jet catheter that is integrated or can be introduced are dimensioned so that the patient can freely breath and speak without restriction.

A system selectively delivers either breath-synchronized, flow-targeted ventilation (BSFTV) or closed-system positive pressure ventilation (CSPPV) to augment respiration of a patient with a standard tracheal tube. A removable adaptor has a cap that can be removably attached to the proximal connector of the tracheal tube in BSFTV mode, and an inner cannula that extends within the tracheal tube to effectively divide it into two lumens. The adaptor includes a ventilator connector for removably engaging a ventilator hose to deliver air/oxygen through the adaptor and one lumen of the tracheal tube with a flow rate varying over each respiratory cycle in a predetermined waveform synchronized with the patient's respiratory cycle to augment the patient's spontaneous respiration. The adaptor also includes a port allowing the spontaneously-breathing patient to freely inhale and exhale in open exchange with the atmosphere through the other lumen.

Spontaneous respiration is detected by sensors. An additional amount of oxygen is administered to the lungs via a jet gas current at the end of an inhalation procedure. Breathing volume, absorption of oxygen during inhalation, and clearance of carbon dioxide during exhalation are improved. If required, the exhalation procedure of the patient can be arrested or slowed by a countercurrent to avoid a collapse of the respiration paths. An apparatus including an oxygen pump can be connected to an oxygen source and includes a tracheal prosthesis that can be connected via a catheter. The respiration detections sensors are connected to a control unit for activating the oxygen pump. The tracheal prosthesis includes a tubular support body with a connection for the catheter, and the sensors are associated with the support body. The tracheal prosthesis and jet catheter are dimensioned so the patient can freely breathe and speak without restriction.

The invention provides a respirator system adopting compressed gas as power and a pneumatic-control operation mode without needing an external power source. The respirator system comprises a mechanical gas-feeding passage which assists a patient in breathing through a plurality of pneumatic control mechanical elements, a manual gas-feeding passage which assists the patient in breathing in a manual mode; a synchronous triggering passage which triggers the mechanical gas-feeding passage to operate so as to assist the patient in breathing when the patient is capable of spontaneous respiration; a gas source low pressure alarm passage which gives out visual and audible alarm when gas source pressure is lower than a gas source critical pressure value; and a gas duct high pressure alarm passage which gives out visual and audible alarm when gas duct pressure is higher than a gas duct critical pressure value. The respirator system adopting a pneumatic and pneumatic-control operation mode can be used in places incapable of providing electric energy such as hyperbaric oxygen chambers, airplanes, submarines and MPI environments, thereby having excellent practicability.

A mechanical ventilation device (10) includes a mechanical ventilator. At least one airway sensor (24, 26) is configured to measure at least one of airway pressure and airway air flow as a function of time for a patient on the mechanical ventilator. At least one microprocessor (28, 30) is programmed to analyze at least one of airway pressure and airway air flow measured by the airway sensor to detect a spontaneous respiration anomaly in respiratory muscle pressure as a function of time generated by a patient on the mechanical ventilator. A display component (22) is configured to display an indication of a spontaneous respiration anomaly detected by the anomaly detection component.

The invention relates to the technical field of medical teaching aids, in particular to a cardiopulmonary resuscitation training model with spontaneous respiration after successful rescue. The cardiopulmonary resuscitation training model comprises a model body. The model body comprises a trunk model and a head model, the head model is arranged on the top of the trunk model, a model inner cavity isarranged inside the model body, a thoracic cavity model is arranged inside the model inner cavity and comprises a fixing box, telescopic rods are arranged inside the fixing box, a lifting plate is tightly welded on the tops of the telescopic rods, a top cover is arranged on the upper side of the fixing box, a rubber film is arranged in the middle of a surface of the top cover, a sponge mat is arranged between the rubber film and the lifting plate, and springs are arranged on two sides of the sponge mat. The cardiopulmonary resuscitation training model has the advantages that the cardiopulmonary resuscitation training model is simple in structure and convenient to use; the cardiopulmonary resuscitation training model with an air pump and the thoracic cavity model can have certain respiration circulation functions, and accordingly learners can thoroughly feel spontaneous respiration functions of patients after the patients revive; the learners can have obvious touch sense and pressure feedback by the aid of the springs and the sponge mat during compression, and accordingly cardiopulmonary resuscitation can be truly tested.

Respiration system for non-invasive positive-pressure respiration, with a pressure source providing respiratory gas, with a control and evaluation unit connected to sensors detecting a leakage volume, spontaneous respiration frequency, tidal volume and the inspiration time. The control and evaluation unit I) checks the leakage volume and reduces the inspiratory pressure assistance proceeding to ii) or triggers an alarm and returns to I), ii) checks the frequency and triggers an alarm and returns to I) or reduces or increases the inspiratory pressure and returns to I) or proceeds to step iii), iii) checks the volume and reduces or increases the inspiratory pressure and returns to I) or leaves the pressure assistance unchanged proceeding to step iv), iv) adjusts the time period of the pressure assistance, depending on the inspiration time, the time period being left unchanged if the inspiration time lies in the predefined inspiration time interval, and returns to I).

The embodiment of the present disclosure relates to a wearable respiratory myoelectricity stimulation device. The device comprises: a control unit which is used for generating corresponding electric stimulation current according to input information; and a phrenic nerve stimulation wearable electrode unit and an abdominal muscle stimulation wearable electrode unit which are both connected to the control unit and used for receiving the current, wherein the current acts on nerves or muscles, wherein the electrode position of the phrenic nerve stimulation wearable electrode unit corresponds to the phrenic nerve after being worn, and the electrode position of the abdominal muscle stimulation wearable electrode unit corresponds to rectus abdominis and obliquus abdominis. The embodiment of the present disclosure provides the wearable device suitable for household, the device is convenient for a user to wear, the electrode is aligned with a part needing electric stimulation after wearing, theoperation is simple, and the user can be helped to recover the spontaneous respiration by training the muscle strength and endurance of the diaphragm muscle and the abdominal muscle.