BEIJING AEONMED CO., LTD. Patent applications |
Patent application number | Title | Published |
20160116078 | PROPORTIONAL VALVE - The proportional valve including a valve body, an air inlet hole and an air outlet hole being provided inside the valve body; a valve core component, the valve core component being movably disposed inside the valve body along a vertical direction; and a first film sheet, an outer side of the first film sheet being connected to the valve body, and an inner side of the film sheet being connected to the valve core component. The proportional valve has a high response speed, high precision, desirable repeatability, desirable consistency, small hysteresis, low fabrication difficulty, and low fabrication cost. | 04-28-2016 |
20150107587 | ZERO POINT CALIBRATION METHOD AND APPARATUS FOR PRESSURE SENSOR OF ANESTHESIA MACHINE - Disclosed are a zero point calibration method and apparatus for a pressure sensor of an anesthesia machine. The method comprises: performing zero point calibration on an airway pressure sensor of the anesthesia machine ( | 04-23-2015 |
20150082869 | DETECTION METHOD AND DETECTION DEVICE FOR PIPELINES IN MACHINE-CONTROLLED LEAKAGE AND COMPLIANCE TESTS OF ANESTHETIC MACHINE - A detection method for pipelines in machine-controlled leakage and compliance tests of an anesthetic machine, comprising: entering a machine control leakage test and compliance test state of an anesthetic machine; piping air in an air passage outside a folding bag according to a preset flow rate, and controlling and detecting a pressure value in the air passage and the air piping time at the same time; acquiring the pressure value in the air passage and the air piping time, and judging whether a condition for the anesthetic machine to stop piping air is achieved or not according to the pressure value and the air piping time; according to the pressure value and the air piping time, obtaining a pressure change rate in the air passage in the whole air piping process; according to the pressure change rate, judging whether pipelines in leakage and compliance tests are correctly connected or not. | 03-26-2015 |
20140283830 | FLOWMETER - A flowmeter comprises a lower valve body ( | 09-25-2014 |
20140069539 | BYPASS DEVICE FOR ABSORPTION TANK - A bypass device for an absorption tank comprises a two-position three-way valve, a micro switch, a control circuit board, and a micro switch actuation mechanism. When an absorption tank needs to be replaced, in the process of rotating a handle, a contact wheel of the micro switch is pressed to send an electrical signal to the control circuit board, and the control circuit board controls a solenoid valve, thereby controlling a gas path of the two-position three-way valve, and bypassing the absorption tank effectively and timely. After the absorption tank is replaced, it is only required to rotate the handle to the original position, so that the entire replacement process involves simple operations and is effective, and the sealing effect of the gas path is desirable. | 03-13-2014 |
20140069431 | OXYGEN MIXING VALVE - An oxygen mixing valve comprises a valve body. The valve body has an oxygen inlet, an air inlet, and a gas mixture outlet. A mixing chamber in communication with the gas mixture outlet, an oxygen chamber in communication with the oxygen inlet, and an air chamber in communication with the air inlet are disposed in the valve body. A first guide seat is elastically disposed in the oxygen chamber, and a second guide seat is elastically disposed in the air chamber. A first ball and a second ball are respectively disposed at inner ends of the first guide seat and the second guide seat. The first ball and the second ball are connected through a ball mandril. A mandril is movably disposed at an outer end of the first guide seat, a bearing capable of rotating is disposed at an outer side of the mandril, an involute cam is disposed at an outer side of the bearing, and the involute camis connected to an output shaft of a stepper motor. The oxygen mixing valve has advantages of simple structure, convenient mounting and maintenance, low manufacturing cost, capability of sensitively and precisely adjusting the ratio of the oxygen to air, and capability of controlling the tidal volume in conjunction with a common proportional valve. | 03-13-2014 |
20140054479 | FLOW CONTROL PROPORTIONAL VALVE - A flow control proportional valve comprises a valve body and a valve core disposed below the valve body, a valve cover plate is disposed at an upper end of the valve core, the bottom of the valve cover plate is connected to an upper end of a connection rod, a coil rack fixedly mounted at a lower end of the connection rod is wound by an enameled wire which is connected to a power supply unit, a magnetic core and a magnetic ring are disposed under the coil rack, the magnetic ring surrounds the magnetic core, a gap is kept between the magnetic ring and the magnetic core to form a magnetic field, the coil rack is sleeved on the magnetic core and is disposed in the gap. | 02-27-2014 |
20140053842 | MEDICAL OXYGEN MIXING VALVE - Disclosed is a medical oxygen mixing valve comprising a valve body, a valve cap, a spring, spool assembly, dial assembly and knob assembly. An axial hole is set inside the valve body. The spool components capable of sliding in an axial direction along the wall of the hole are set in the hole. An air input hole, oxygen input hole and gas mixture output hole which are in communication with the hole are set in the radial direction of the valve body. The knob components are used for adjusting the position of the spool components in the hole set in the axial direction of the valve body to adjust the sizes of the air input hole and oxygen input hole blocked by the spool components, thereby adjusting the output of the oxygen concentration. The oxygen mixing valve has the advantages of a simple structure, and easy machining, installation and debugging. | 02-27-2014 |
20120265492 | Method, Device and System for Detecting Medical Equipment - The present invention discloses a detection method, device and system for medical equipment, wherein the method comprises that: a detection device sends operation parameters to a detected equipment; the detection device obtains detection parameters in a case that the detected equipment operates under the operation parameters; the detection device compares the detection parameters with reference data, wherein the reference data are data obtained through detecting the detected equipment by the detection device; and the detection device determines the operation state of the detected equipment according to the comparison result. By the present invention, realized is an overall, systematic automatic detection of the operation parameters output by the detected equipment. | 10-18-2012 |
20090320862 | GAS-ABSORBING SYSTEM - The present invention provides a gas absorbing system which comprises: an inlet pipe, a gas accommodating section into which gas enters through the inlet pipe, and a negative pressure exhausting pipe which exhausts the gas in the gas accommodating section to external device by using negative pressure wherein the gas accommodating section comprises a first chamber which is provided with air holes in the side wall for discharging the gas in the gas accommodating section or allowing external air entering the gas accommodating section. The gas absorbing system according to the present invention not only can effectively prevent the system internal gas from discharging directly to environment to endanger the health of patients and medical care personnel, but also can reduce the variation of the pressure inside the system when an abnormal incident occurs, so as to prevent it from influencing the safety of the patient to the most extent. | 12-31-2009 |
20090171514 | METHOD FOR IMPROVING THE PRECISION AND RELIABILITY OF CIRCUIT HEATING CONTROL THROUGH A 1 - WIRE SENSOR - A method for improving the precision and reliability of the heating control for an anesthetic machine circuit, comprises: a 1-wire temperature sensor is positioned in the anesthetic machine circuit and electrically connected to a control unit. The control unit reads the ID and verification code of the temperature sensor according to 1-wire protocol and determines the validity of the temperature sensor. The control unit reads the temperature value of the temperature sensor and compares it with the target control temperature. The control unit then turns on the control switch when requiring heating such that power supply powers the heater and the circuit temperature rises, or on the contrary turns off the control switch and the circuit temperature drops according to a control algorithm. The average power of the heater is controlled by PWM method such that the circuit is operated at a predetermined control temperature. With the usage of the 1-wire temperature sensor, the problem of analog signal transmission error is solved, the use of the sensor is facilitated, a long-distance temperature detection and control is obtained. At the same time the digital signal form and interface protocol of the sensor have relative higher anti-disturbance performance and failure recognition function. Accordingly, the requirement on the interface connection quality is reduced, and the reliability is improved. | 07-02-2009 |
20090165798 | METHOD FOR IMPROVING CONTROL AND DETECTION PRECISION OF TIDAL VOLUME BY A CALCULATION INTRODUCED WITH R VALUE - The present invention discloses a method for improving control and detection precision of tidal volume by introducing R value, comprising the steps of: a plateau pressure Pplate is used to calculate a system compliance C with C=ΔV/(Pplate−PEEP); V | 07-02-2009 |
20090165797 | AIRWAY SYSTEM, OPERATING MEHTOD THEREOF AND VENTILATOR OR ANESTHETIC MACHINE HAVING SUCH SYSTEM - The present invention discloses an airway system and operating method thereof in the medical equipments such as a ventilator and an anesthetic machine. The airway system comprises: a respiratory circuit ( | 07-02-2009 |
20090165785 | ANESTHETIC ABSORBING CIRCLE - The present invention relates to an anesthetic absorbing circle, comprising: a first common tube, providing an anesthetic gas mixture; an inspiration branch, connected to the first common tube and delivering the anesthetic gas mixture to a patient end; an expiration branch, connected to the first common tube and sending back the expired gas from the patient end to the first common tube; a second common tube, connected with the inspiration branch and the expiration branch at its first end and connected with the patient end at its second end; and a flow sensor, wherein the flow sensor is disposed in the first common tube. Thus, according to the present invention, the flow sensor can conduct bidirectional monitoring, the flow sensor is remote from patients, and water accumulation at the probe will not appear; in addition, the probe can be easily detached and disinfected at a high temperature, and can be used between adults and children. | 07-02-2009 |