Abstract: This disclosure provides a perfusion device, an anesthetic vaporizer, and an anesthetic machine. The anesthetic vaporizer includes a vaporizer body and the perfusion device. A feed port and a tank are provided in the vaporizer body. The perfusion device includes a mounting assembly, an ejector rod assembly, and a valve core assembly that is provided with a liquid inlet channel. The mounting assembly includes a mounting seat that is mounted on the feed port and provided with a hollow structure having an opening at both ends. The valve core assembly is movably mounted on one opening of the hollow structure, and the ejector rod assembly is movably mounted on the other opening of the hollow structure and forms a sealed structure with the mounting assembly. The ejector rod assembly may drive the valve core assembly to move toward the tank, and the liquid inlet channel communicates with the hollow structure.

Abstract: A portable monitoring device, including a housing, a physiological parameter acquiring circuit, a signal transmitting circuit, and a signal receiving circuit, is provided. The physiological parameter acquiring circuit is configured to acquire physiological sign parameters of a monitoring object; the signal transmitting circuit is configured to determine a transmitting frequency of a communication signal according to the current communication state, and transmit the physiological sign parameters to a wireless access point by means of the communication signal of the transmitting frequency; the signal receiving circuit is configured to receive the communication signal transmitted by the wireless access point, and perform filter processing on the communication signal of the current communication channel to suppress interference signals from other communication signals.

Abstract: A calibration method for an oxygen sensor and a medical ventilation system are disclosed. At least two electrical signals are acquired at two time points within a preset time period, when the oxygen sensor is in a preset oxygen concentration. A response function of the oxygen sensor which corresponds to the preset oxygen concentration, is determined according to the at least two time points and the at least two electrical signals. A steady-state output value of the oxygen sensor in the preset oxygen concentration is determined, according to the response function and a characteristic curve of the oxygen sensor is determined, according to the steady-state output value of the oxygen sensor in the preset oxygen concentration. The described method reduces the time waiting for the oxygen sensor to respond, thus improving calibration efficiency, and facilitating the improvement of the oxygen concentration monitoring accuracy of a ventilation device in daily use.

Abstract: Medical devices, plug-ins, systems, and methods for CPR quality feedback are disclosed. The medical devices can calculate peripheral circulation relevant parameters based on measured signals containing at least partial hemodynamic characteristics. Amplitude and area characteristics included in the peripheral circulation relevant parameters can further be determined for providing feedback and control relating to CPR quality during the compression process. Also, compression interruption during CPR can be evaluated based on a pulse waveform generated from the measured signals.

Abstract: This disclosure provides a monitoring device, a wireless communication device, and a control method. The monitoring device includes a control system assembly, a digital-analog mixing assembly, a frequency band selection assembly, and an antenna. The control system assembly is respectively connected with the digital-analog mixing assembly and the frequency band selection assembly; one end of the frequency band selection assembly is connected with the digital-analog mixing assembly through a channel of designated frequency band, and the other end of the frequency band selection assembly is connected with the antenna. The monitoring device can switch from a currently used frequency band to other frequency bands for signal transmission or use other frequency bands for simultaneous signal transmission, according to a signal transmission status of the currently used frequency band. Thus, the anti-interference ability of the monitoring device can be improved to reduce the error rate of signal transmission.

Abstract: A wireless handheld ultrasound system an ultrasound front end to transmit ultrasonic waves into a subject and convert received ultrasonic echoes into digital data; an image processor coupled to the ultrasound front end to convert the digital data into an image; and a power section coupled to the ultrasound front end and the image processor. The power section may include a battery; a charging circuit to charge the battery; and a wireless power transducer coupled to the charging circuit to convert wireless power received from an external source into electrical energy for the charging circuit.

Abstract: One variation of a method for identifying homology of physiological signals comprises: receiving signal data of two different types of physiological signals; performing waveform matching on the signal data of the two different types of physiological signals to determine waveform matching information in the signal data of the two types of physiological signals; calculating an associative feature between the signal data of the two different types of physiological signals according to the waveform matching information; calculating a homology reference coefficient corresponding to the two different types of physiological signals according to the associative feature; and determining that the two different types of physiological signals are homologous when the homology reference coefficient is greater than a preset value.

Abstract: A sample rack transport apparatus for transporting a sample rack to a sample analyser, comprising: a bidirectional transmission track for bidirectionally transmitting a sample rack without passing through the sample analyser; a feed channel in parallel with the bidirectional transmission track, wherein the sample rack may be delivered from the bidirectional transmission track to the feed channel and to the sample analyser; an unloading cache region located between the bidirectional transmission track and the feed channel, the unloading cache region being used for storing the sample tack; and an unloading mechanism for delivering the sample rack in the feed channel to the unloading cache region for storage, or delivering the sample rack stored in the unloading cache region to the bidirectional transmission track. Also provided are a sample analysis device and a sample analysis system using the sample rack transport apparatus.

Abstract: A method and a machine for drying blood smears and an automatic smearing device are provided. In the method, a dry gas is used as a drying medium to dry a blood film on a blood smear in drying the blood smear, thus reducing drying time and the number of blood smears which are dried together. The dry gas is obtained by: first, removing a liquid from a pressurized gas, second, filtering a vapor, and finally, decompressing the dried pressurized gas to be a non-pressurized gas having lower humidity. In addition, the dry gas is further heated for further reducing the humidity of the dry gas. In order to prevent cell distortion from occurring, the heated dry gas is caused to gently flow over the blood smear in a direction which the blood film is spread.

Abstract: Systems and methods for performing ultrasound imaging. Ultrasound information of a subject region in response to ultrasound pulses transmitted toward the subject region can be gathered. The ultrasound information can include reflectivity information and complementary information to the reflectivity information of the subject region in response to the ultrasound pulses. One or more ultrasound images of at least a portion of the subject region can be formed from the reflectivity information. Further, the one or more ultrasound images can be modified based on the complementary information to the reflectivity information to generate one or more enhanced ultrasound images from the one or more ultrasound images.

Abstract: A reaction vessel pickup mechanism, an automatic loading device, a sample analyzer, and a loading method are disclosed. Driven by a driving structure, each of the pickup blocks moves in a first preset time or a preset distance and then stops or shakes, so that a reaction vessel is dropped from the pickup blocks more easily.

Abstract: The present disclosure relates to medical instruments, and in particular to a method and device for state display during a ventilation process, a ventilator, a computer device, and a computer-readable storage medium. A method for state display during a ventilation process can include determining, by a processor, a monitoring parameter regarding a user. The method can also include displaying a first image corresponding to the monitoring parameter according to a pre-set correlation.

Abstract: The present disclosure provided a blood cell analyzer, a control device and a blood analysis method thereof. In the method, a first reagent is mixed with a sample to obtain a first testing sample, and then a second reagent is mixed with the first testing sample for a further reaction to get a second testing sample for basophil classification and/or HGB measurement. A blood sample may be tested in one reaction cell through time-division multiplexing technology to obtain four groups leukocytes classification result and HGB result by single detection channel. Thus, the structure of the analyzer may be greatly simplified on the premise of guaranteeing the performance of the analyzer, the size and cost of the analyzer may reduce and a performance-price ratio of the analyzer may increase.

Abstract: An alarming method for a platelet aggregation sample can include providing a blood sample, preparing a first test sample from the blood sample under a first reaction condition, acquiring a test signal of the first test sample, and obtaining first platelet test data. The method can also include preparing a second test sample from the blood sample under a second reaction condition, acquiring a test signal of the second test sample, and obtaining second platelet test data. The method can further include obtaining an evaluation result based on the first platelet test data and the second platelet test data, determining whether the evaluation result meets a predetermined condition, and alarming that the blood sample may be the platelet aggregation sample if the evaluation result meets the predetermined condition. The second reaction condition may include a reaction condition for reducing the platelet aggregation degree of the blood sample.

Abstract: A waste liquid treatment apparatus, a method, and a sample analyzer are provided. The waste liquid treatment apparatus is used for treating waste liquids in waste liquid pipes, and includes at least two waste liquid chambers, a pressure supply device, and a control device. Each waste liquid chamber communicates with at least one waste liquid pipe, and is used for collecting the waste liquid in the waste liquid pipe connected thereto when the inside of the waste liquid treatment chamber is in a negative pressure state. The pressure supply device is connected to each waste liquid chamber, and the control device is configured for controlling the pressure supply device to supply air pressure to each waste liquid chamber, so that the inside of at least one waste liquid chamber is in a negative pressure state at any time during waste liquid treatment, thereby effectively shortening a waste liquid treatment cycle.

Abstract: This disclosure provides a method for evaluating volume responsiveness and a medical device. The medical device includes a respiratory assistance device for providing respiratory support for a patient, and a first sensor for collecting physiological parameters of the patient and a processor. When volume responsiveness evaluation is needed, the processor controls ventilation parameters to switch to a second ventilation parameter that may increase the variation of the intrathoracic pressure of the patient, and then uses a parameter variation capable of reflecting the heartbeat of the patient to evaluate whether the patient is volume responsive.

Abstract: A sample testing device, a sample testing method, and a sample analyze are provided. The sample testing device includes a pipeline assembly, a testing assembly, and a reaction assembly. The pipeline assembly includes a first pipeline and a second pipeline. The testing assembly includes a sample needle which includes a first connection point. The reaction assembly includes a first reaction cell group connected to a second connection point of the first pipeline and a second reaction cell group which communicates with the second pipeline, and the reaction assembly is configured to treat a biological sample to prepare a test liquid. A test liquid in the first reaction cell group flows to the first connection point via the second connection point of the first pipeline, and a test liquid in the second reaction cell group flows to the first connection point via the second pipeline.

Abstract: Systems and methods for utilizing a hybrid transmitter in an ultrasound system. A system can include a hybrid transmitter configured to transmit ultrasound waves toward a subject area. The hybrid transmitter can comprise a linear transmitter configured to generate linear transmitter output and a switching transmitter configured to generate switching transmitter output. The hybrid transmitter can also comprise a summer configured to sum the linear transmitter output and the switching transmitter output to generate hybrid transmitter output for driving a transducer load to generate the ultrasound waves transmitted towards the subject area. The ultrasound system can also comprise a receiver configured to receive one or more ultrasound waves from the subject area in response to the ultrasound waves transmitted toward the subject area for generating ultrasound images of the subject area.

Abstract: A medical device, a medical device system and a monitor are provided. The medical device is provided with an audio acquisition apparatus and a processor. A user can operate, by means of a voice, the medical device to execute a medical process including several medical actions. Specifically, the user inputs a voice signal carrying a medical process instruction to the medical device. After acquiring the voice signal, the audio acquisition apparatus sends the voice signal to the processor, the processor determines the corresponding medical actions for the medical process instruction in the voice signal according to a preset correspondence between the medical process instruction and the medical actions, and controls execution of the medical actions. Hence, the user can operate the medical device by using the voice, without manually performing a contact operation, so that the operating method is more efficient and convenient.