RU2058113C1 - Biotelemetric device - Google Patents

Abstract

FIELD: medical equipment. SUBSTANCE: device has the first receiving-transmitting system, which has quick-changed physiological parameters detectors and amplification units. The detectors are connected to the first radio transmitter through the first controlled commutator, provided with control unit for inspection mode of operation of radio transmitter. The second receiving-transmitting system has signal receiver coming from the first radio transmitter. The signal receiver is connected with signalling and registering units through pre-start inspection unit and control unit. Feedback receiver is introduced into the first receiving-transmitting system, which receiver has control input connected with control input of the first controlled commutator. The second controlled commutator is introduced into the second receiving-transmitting system; slowly-changed physiological parameter detectors are connected with inputs of the commutator. Output of the commutator is connected with one of inputs of control unit. The second radio transmitter is brought into the second system as well, which has sound signalling input, information input and power checking unit connected with corresponding outputs of the control unit. Stationary part is introduced into the system also, which has re-record, representation and additional data processing unit. The first receiving-transmitting system is made for mounting onto patient's body, and the second one - for transportation. EFFECT: improved efficiency; improved reliability. 1 dwg

Description

 The invention relates to medical equipment and can be used in biomedical, hygienic research, in sports medicine for automatic tele-registration of physiological parameters of a freely moving person.

 The invention is aimed at solving a number of biotelemetry problems related to reducing the size and weight of the part of the device that is located on the patient.

 Known telemetry system for obtaining information about changes in human parameters through automatic teleregistration. The system consists of three parts: worn on the patient’s body, the receiving part, carried by the patient and the stationary part. In this system, all sensors are located on the patient’s body and are switched with the cycle set by the switch, all depending on their physiological and informational significance.

 A device for monitoring and observing electrocardiological signals of a patient is used, which is used for continuous long-term observation of the cardiac activity of patients with a high degree of risk of sudden cardiac complications.

The purpose of the device is to increase the accuracy and efficiency of monitoring the patient's condition [1]
The device used a system consisting of two transceiver parts, and the introduction of an additional receiver and the provision of two modes of operation of the transmitter located on the patient’s body, provide only two-way voice communication between the patient and the observation center. In this case, adaptive control in automatic mode does not occur when the patient's state changes (only due to speech exposure from the observation center).

 It is possible to assume that this design could allow greater adaptability, greater independence of the patient from the center, but in this case, the placement of additional sensors of physiological parameters on the patient’s body would create its own difficulties: the wearable part would become more voluminous in mass, energy consumption, and discomfort conditions would be created etc.

 The aim of the invention is to ensure autonomy, independence of the patient from the center of observation without increasing the size and weight of the parts of the device worn on the patient’s body.

 The goal is achieved in that the biotelemetric device consists of a first transceiver system, including sensors of rapidly changing physiological parameters with amplification units, which are connected through a first controlled switch to a first radio transmitter equipped with a device for controlling its operation mode; a second transceiver system including a radio signal receiver from a first radio transmitter connected through an admission control unit, a processing and control unit to an alarm unit and a registration unit; and the third stationary part, including a block for rewriting, displaying and additional information processing; at the same time, a feedback receiver is inserted into the first transceiver system, connected to the control input of the first managed switch by an output, and a second managed switch is inserted into the second transceiver system with sensors of slowly changing physiological parameters turned on at its inputs, the output of which is connected to one of the inputs of the processing unit and control, and a second radio transmitter, in which the sound alarm input, information input and power adjustment input are connected to the corresponding outputs of the unit ka processing and management; the first transceiver system is made with the possibility of its installation on the patient’s body, and the second with the possibility of transfer (for example, in the diplomat).

 In other words, sensors of slowly varying physiological parameters are excluded from the part worn on the patient’s body, and a controlled switch with the number of channels less by the number of sensors of slowly changing parameters is introduced. In turn, these sensors are introduced into the second part, and the processing and control unit generates by the command “On Signal” two signals of different tonality, each of which through the transmitter and receiver of the wearable part signal to the patient about the need for additional measurements.

 The idea of placing part of the sensors carrying episodic or with a long repetition period information on the state of slowly changing physiological parameters, clarifying the reason for the change in dynamically changing physiological parameters, implemented in our device, allowed us to significantly reduce the amount of equipment hung on the patient, as well as expand the information capabilities of the device for due to the introduction into the patient-transferred part of the device of sensors that are informationally necessary but not consistent with voim specification requirements of placing them on the body weight, size, power consumption, type.

 Thus, based on the fundamental changes made to the near telemetry device, the technical solution proposed by the authors meets the criterion of "significant differences".

 The drawing shows a structural diagram of a biotelemetric device.

 The device consists of three parts. The first transceiver part is located on the patient and includes sensors D (DP) 1 of rapidly changing physiological parameters (for example, heart rate, motor activity) with amplification units, the first controlled switch 2 of dynamically changing parameters (UKDM) 2, the first radio transmitter 3 with a control device, its operating mode 4, a feedback receiver (Pr) 5 control signals with audio playback switching ("On signal"), while the outputs of the sensors 1 are connected to the inputs of the first managed switch 2, and the control the inputs of the first switch 2 are connected to the output of the feedback receiver 5.

 The second transceiver part of the device (placed, for example, in the diplomat) contains a radio signal receiver (Pr) 6 from the first radio transmitter 3, an admission control unit 7 for received radio signals, sensors of slowly varying physiological parameters (D) 8, a second radio transmitter (Per) 9, and the second a controlled switch of slowly varying physiological parameters (UKMmp) 10, a processing and control unit with generators of a two-tone sound alarm (UOU) 11 to transmit information to the patient about the need to use additional sensors (to measure temperature, blood pressure, heart rate, etc.) to obtain a more complete picture of the patient's health status, signaling unit (CM) 12 and the recording unit (Reg) 13.

 The third part of the device is stationary, including a unit for rewriting information, its display and additional processing (MEW) 14.

 The portable part of the device is as follows. The temperature sensor works on the principle of converting temperature into a time interval that can be measured by the pulse count method, i.e. the measurement of the time interval and the processing of the result is carried out, for example, by the processing and control unit. Blood pressure is measured using a finger tonometer of a known design, operating on the principle of creating compensation pressure on the phalanx of the finger and determining the relative changes in amplitude modulation in the infrared optoelectronic channel caused by pulsation of blood flow. Such a sensor is built into one of the ends of the diplomat and, in the case of a signal indicating the need to measure blood pressure, implies the introduction of a finger into the hole with a compression finger cuff with an integrated optoelectronic channel, the signals of which are examined by scanning pressure in the cuff created by a programmable microprocessor.

 The thermistor of the temperature sensor is located on the inner surface of the finger cuff, which allows you to almost simultaneously measure blood pressure along with blood pressure.

 The device operates as follows. Continuously transmitted information from a basic sensor 1, for example, a heart rate sensor, is transmitted through a managed switch 2 to the input of a transmitter 3 operating at a radiation frequency. The signals of the transmitter 3 are received by the receiver 6 and from the output of the receiver 6 are fed to the block 9 tolerance control. Block 9 tolerance control evaluates the levels of received signals for compliance with the upper and lower boundaries. If the output signal of the receiver 6 corresponds to the level of the set tolerances, then it is output from the block 7 of the tolerance control to the input of the block 11 processing and control. The processing and control unit 11 evaluates the heart rate.

 If the heart rate is within its natural deviation, further processing of the received information is terminated.

 If the heart rate exceeds the level of physiologically permissible deviation, then the received information is stored in the recorder 13 together with the time of receipt of information on changes in the heart rhythm, and control information 9 is transmitted from the processing and control unit 11, which provides for the receipt of additional physiological information, for example, to enable the sensor of motor activity. The signal from the transmitter 9 arrives at the receiver 5 and from the output of the receiver 5 to the wearable managed switch 2, which provides additional physiological information about the patient’s motor activity to the input of the transmitter 3. Information about the motor activity coming from the transmitter 3 goes to the processing and control unit 11 through the receiver 6. The processing and control unit 11 reads from the recorder 13 the previously recorded heart rate value and compares it with the level of motor activity. If these values correspond to each other, then from the processing and control unit 11 through the transmitter 9, the receiver 5, a command is sent to the managed switch 2 to continue monitoring the heart rate, and the information recorded in the recorder 13 is erased.

 If the heart rate and the level of motor activity do not correspond to each other, then the processing and control unit 11 through the managed switch 10 includes a temperature measurement sensor 8, and also through the transmitter 9, receiver 5, switch 2 switches the receiver 5 to the sound signaling mode of a certain tonality. By this signal, the patient approaches the second part of the device transferred to him (the diplomat) and, in accordance with the instructions, measures the temperature with the help of the sensor 8. The measured temperature value enters the processing and control device 11. If the patient's temperature is normal, then automatically, at the command of block 11, a signal to turn on the blood pressure sensor (8) is received at switch 10. If the temperature or blood pressure is outside the established norms, then, at the command of the processing and control device 11, an alarm unit 12 is turned on, indicating its painful condition, which forces the patient to use the doctor’s instructions.

 If the patient at the moment of exceeding the heart rate is outside the standard length, then the signal from the output of the receiver 6 goes to block 7, and from the output of block 7 to the input of control and processing unit 11, where a control signal is generated to increase the radiated power and a signal that carries information about the need to use the sensors of the portable part. The power control signal is transmitted to the transmitter 9 and through the receiver 5 and the switch 2 enters the controller 4 of the operating mode and after the restoration of normal reception from block 11 through the transmitter 9, receiver 5, switch 2, the alarm is turned on. Through the included alarm from unit 11, a two-tone alarm signal is transmitted through the transmitter 9 and receiver 5 (command to use the portable part of the device by the patient himself).

Claims (1)

 A BIOTELEMETRIC DEVICE containing a first transceiver system including sensors of rapidly changing physiological parameters with amplification units that are connected through a first controlled switch to a first radio transmitter equipped with a device for controlling its operation mode, a second transceiver system including a signal receiver from a first radio transmitter connected via a block access control and processing and control unit with an alarm unit and a registration unit, characterized in that a feedback receiver is inserted into the first transceiver system, the output connected to the control input of the first managed switch, and a second managed switch is inserted into the second transceiver system with sensors of slowly changing physiological parameters turned on at its inputs, the output of which is connected to one of the outputs of the processing and control unit, and a second radio transmitter, in which an audible alarm input, an information input and a power adjustment input are connected to the corresponding outputs of the image block quipment and control device is also put into a stationary part including a rewriting unit, a display and an additional information processing, wherein the first transceiver system is configured to be installed on the patient's body, and the second, with the transfer.

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