CN105054903A - Multi-parameter monitoring system - Google Patents

Abstract

The invention provides a multi-parameter monitoring system. The multi-parameter monitoring system comprises a terminal device, a probe module and a blood pressure measuring module. The probe module maintains communication with the terminal device, and the probe module is at least used for obtaining intracranial pressure and transmitting the intracranial pressure to the terminal device; the blood pressure measuring module maintains communication with the terminal device, and the blood pressure measuring module is at least used for obtaining mean arterial pressure and transmitting the mean arterial pressure to the terminal device; and the terminal device calculates according to the received intracranial pressure and the received mean arterial pressure to obtain cerebral perfusion pressure, and the terminal device is at least used for displaying the cerebral perfusion pressure. The multi-parameter monitoring system can directly obtain the cerebral perfusion pressure according to the received intracranial pressure and the received mean arterial pressure, and the problem that an existing monitoring system needs to respectively measure the intracranial pressure and the mean arterial pressure, and then the cerebral perfusion pressure is calculated manually is solved.

Description

Multi-parameter monitoring system

technical field

The invention relates to the field of implantable medical systems, in particular to a multi-parameter monitoring system.

Background technique

It has been clinically shown that when the intracranial pressure ICP rises and the cerebral perfusion pressure CPP falls to a certain extent, the autoregulatory mechanism of the cerebral blood vessels is out of balance, and the cerebral blood flow CBF will drop sharply. When the intracranial pressure ICP rises close to the mean arterial pressure mSAP, intracranial blood flow is almost completely stopped, which can lead to irreversible cerebral ischemia, brain manipulation and even death.

The existing monitoring system needs to measure the intracranial pressure ICP and the mean arterial pressure mSAP separately, and then manually calculate the cerebral perfusion pressure CPP. Treatment means, it is possible to miss the best time for treatment.

Contents of the invention

The purpose of the present invention is to provide a multi-parameter monitoring system.

In order to achieve one of the objectives of the above invention, an embodiment of the present invention provides a multi-parameter monitoring system, including a terminal device, a probe module and a blood pressure measurement module, the probe module maintains communication with the terminal device, and the probe module At least for obtaining intracranial pressure and transmitting the intracranial pressure to the terminal device; the blood pressure measurement module maintains communication with the terminal device, and the blood pressure measurement module is at least used for obtaining mean arterial pressure and transmitting the The mean arterial pressure is transmitted to the terminal device; wherein, the terminal device calculates the cerebral perfusion pressure according to the received intracranial pressure and the mean arterial pressure, and the terminal device is at least used to display the cerebral perfusion pressure.

As a further improvement of an embodiment of the present invention, the terminal device communicates wirelessly with the probe module and the blood pressure measurement module.

As a further improvement of an embodiment of the present invention, the probe module is also used to acquire intracranial temperature.

As a further improvement of an embodiment of the present invention, the terminal device is further configured to display some or all parameters of the intracranial temperature, the intracranial pressure, and the mean arterial pressure.

As a further improvement of an embodiment of the present invention, the display of the parameters is numerical display or waveform display.

As a further improvement of an embodiment of the present invention, the terminal device further includes a prompt unit configured to determine whether the parameter is abnormal.

As a further improvement of an embodiment of the present invention, each of the parameters corresponds to a threshold, and when the parameter increases or decreases to the corresponding threshold, the prompt unit works.

As a further improvement of an embodiment of the present invention, the blood pressure measurement module is also used to acquire systolic pressure and diastolic pressure, and the blood pressure measurement module calculates the average arterial pressure according to the systolic pressure and diastolic pressure.

As a further improvement of an embodiment of the present invention, each of the terminal devices corresponds to a plurality of the probe modules and a plurality of the blood pressure measurement modules.

As a further improvement of an embodiment of the present invention, the multi-parameter monitoring system further includes a central monitoring system, and each central monitoring system corresponds to a plurality of terminal devices.

Compared with the prior art, the beneficial effect of the present invention is that the monitoring system of the present invention can directly obtain the cerebral perfusion pressure according to the received intracranial pressure and the mean arterial pressure, eliminating the need for the existing monitoring system to measure the intracranial pressure and the mean arterial pressure respectively. The disadvantages of mean arterial pressure and manual calculation of cerebral perfusion pressure.

Description of drawings

Fig. 1 is a structural block diagram of a multi-parameter monitoring system according to an embodiment of the present invention;

Fig. 2 is a schematic structural view of a probe according to an embodiment of the present invention;

Fig. 3 is a schematic diagram of the probe structure of other embodiments of the present invention;

Fig. 4 is a structural block diagram of a first wireless unit according to an embodiment of the present invention;

5 and 6 are structural block diagrams of multi-parameter monitoring systems in other embodiments of the present invention.

Detailed ways

The present invention will be described in detail below in conjunction with specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.

As shown in FIG. 1 , a multi-parameter monitoring system 100 according to an embodiment of the present invention includes a probe module 10, a blood pressure measurement module 20, and a terminal device 30. The terminal device 30, the probe module 10, the blood pressure measurement The modules 20 maintain communication, and the communication methods may include wireless communication, wired communication, and the like.

Specifically, as shown in FIG. 1, the probe module 10 includes a first wireless unit 11, a probe 12, and a first control unit 13, and the blood pressure measurement module 20 includes a second wireless unit 21, a measurement unit 22, a computing unit 23 and display unit 24 , the terminal device 30 includes a third wireless unit 31 , a storage unit 32 , a computing unit 33 , a processor 34 and a prompt unit 35 . Wherein, the probe module 10 wirelessly transmits the acquired physiological data (pressure, temperature, etc.) representing the intracranial state to the third wireless unit 31 of the terminal device 30 through the first wireless unit 11, and at the same time, the blood pressure The measurement module 20 wirelessly transmits the acquired physiological data such as mean arterial pressure to the third wireless unit 31 of the terminal device 30 through the second wireless unit 21. The wireless communication method can improve the degree of freedom of the system and the breadth of coverage. The communication method of this embodiment is not limited thereto, and the terminal device 30 may be connected to the probe module 10 and the blood pressure measurement module 20 through cables.

As shown in FIG. 2 , the multi-parameter monitoring system 100 is used for invasive intracranial monitoring. The probe module 10 includes a probe 12, and the probe 12 performs signal sensing by putting the probe contact 121 into the patient's skull. Wherein, in this embodiment, the probe contact 121 includes a wire (not marked), an implant housing 1211 arranged at one end of the wire, and a sensing chip arranged on the groove 12111 of the implant housing 1211 1212 , wherein the sensing chip 1212 is held in the implant housing 1211 in a manner free from mechanical stress, so as to ensure that the sensing process of the sensing chip 1212 is not interfered by external devices or structures.

In order to prevent intracranial tissue from entering the probe contacts 121 , a silicone coating (not shown) that seals the sensing chip 1212 should be provided at the implantation shell 1211 . The sensing chip 1212 is provided with sensors (not marked), and the sensors include a pressure sensor capable of sensing intracranial pressure ICP and a temperature sensor capable of sensing intracranial temperature BT, the pressure sensor, the temperature sensor and the sensing chip 1211 can be integrally formed. It should be noted that although the sensing chip 1212 is sealed in the implant housing 1211 by the silicone coating, the pressure sensor and temperature sensor on the sensing chip 1212 can still sense the ICP and ICP through the silicone coating. Intracranial temperature BT. Specifically, as shown in FIG. 2 , the sensor is disposed on the upper surface of the sensing chip 1212 , that is, the surface facing the silica gel. The location of the sensing chip 1212 is not limited to the above, as shown in Figure 3, at this time, the sensing chip 1212' surrounds the groove 12111' in the radial direction of the implant housing 1211' The outer surface is arranged, that is, the sensing chip 1212' is in the shape of a ring, and the sensors are arranged all over the sensing chip 1212', so that the sensors can perceive the intracranial pressure ICP and the intracranial temperature BT in all directions. Here, it should be noted that, at this time, the groove 12111' is recessed toward the center on the radial circumference of the implant casing 1211', so that the annular sensing chip 1212' can be completely set in the groove 12111' Inside. The annular sensing chip 1212' has a pressure sensor capable of sensing intracranial pressure ICP and a temperature sensor capable of sensing intracranial temperature BT, the pressure sensor and the temperature sensor and sensing chip 1212 can be Integral or divided into an integrally formed temperature sensing chip and an integrally formed pressure sensing chip, and the outer surface of the sensing chip 1212' is lower than the outer surface of the implanted housing 1211', thus avoiding sensory The measuring chip 1212' protrudes from the surface of the housing 1211 to damage the intracranial tissue, and facilitates the coating of silica gel. In addition, in order to prevent the probe 12 from causing intracranial infection of the patient, an anti-infection coating can be coated on the probe contact 121 .

The pressure sensor and the temperature sensor transmit the sensed intracranial pressure ICP and intracranial temperature BT to the first control unit 13, and then wirelessly transmit the obtained intracranial pressure ICP and intracranial temperature BT to the terminal device 30 .

Specifically, as shown in FIG. 4 , after the probe 12 is calibrated, the probe contact 121 is placed in the patient's brain, which senses the patient's intracranial pressure ICP through the pressure sensor and temperature sensor on the real-time sensing chip 1212 and intracranial temperature BT and convert the sensed intracranial pressure ICP and intracranial temperature BT into electrical signals, the electrical signals are transmitted to the input interface of the first control unit 13 through the transmission line, and are matched by the interface circuit, and then output to The output interface of the first control unit 13 . The output interface of the first control unit 13 is connected with the first wireless unit 11 again, specifically, the output interface of the first control unit 13 is connected with the input interface of the first wireless unit 11, and the input interface of the first wireless unit 11 receives the The electrical signal matched by the control unit 13 is filtered and processed and then transmitted to the operational amplifier 111. The operational amplifier 111 and the feedback unit 112 complete the amplification and adjustment of the electrical signal together, so that the electrical signal reaches a certain gain; then, the A/D The converter 113 performs sampling processing on the amplified electrical signal and converts it into a digital signal; the controller 114 reads the digital signal converted by the A/D converter 113, analyzes and calculates the corresponding readable ICP and intracranial temperature BT; at the same time, the controller 114 controls the first wireless unit 11 to realize wireless communication with the terminal device 30 . The terminal device 30 here can be, for example, a monitor, a smart phone, a PAD, etc., and the first wireless unit 11, for example, sends the readable intracranial pressure ICP and the intracranial temperature BT to the terminal device 30 through a Bluetooth protocol or a wifi protocol, and simultaneously , can also receive instructions or data from the terminal device 30 .

The multi-parameter monitoring system 100 is also used for blood pressure monitoring. The blood pressure measurement module 20 can be, for example, an upper arm blood pressure monitor. The measurement unit 22 of the blood pressure measurement module 20 can regularly measure the systolic pressure SP and diastolic pressure DP, and the calculation unit 23 can calculate the mean arterial pressure mSAP according to the measured systolic pressure SP and diastolic pressure DP, wherein, the average The calculation formula of the arterial pressure mSAP is: mSAP=(SP+2*DP)/3, and then the obtained mean arterial pressure mSAP is wirelessly transmitted to the terminal device 30 through the second wireless unit 21 . Here, it should be noted that the calculation formula of the mean arterial pressure mSAP is not limited to the above, and may be determined according to actual conditions. The blood pressure measurement module 20 of this embodiment also includes a display unit 24. After the measurement unit 22 measures parameters such as systolic blood pressure SP, diastolic blood pressure DP, and mean arterial pressure mSAP, the display unit 24 can directly display these parameters. The blood pressure measurement module 20 can also be used alone to monitor the patient's blood pressure (including systolic blood pressure SP, diastolic blood pressure DP, mean arterial pressure mSAP, etc.). In addition, the blood pressure measurement module 20 of this embodiment can also measure the pulse parameters of the patient at the same time. The blood pressure measurement module 20 can also be non-invasive or invasive blood pressure signals measured by existing patient monitors: pulse, mean arterial pressure mSAP, systolic blood pressure SP and diastolic blood pressure DP are transmitted to the blood pressure measurement module 20 via Ethernet, the blood pressure The measurement module 20 then wirelessly transmits the data to the terminal device 30 .

In this embodiment, the monitoring process of the probe module 10 needs to be performed in real time, and the monitoring process of the blood pressure measurement module 20 can be performed regularly, for example, every 15 minutes.

In this embodiment, after the terminal device 30 receives the intracranial pressure ICP, the intracranial temperature BT transmitted by the probe module 10, and the mean arterial pressure mSAP transmitted by the blood pressure measurement module 20, the terminal device 30 first records the intracranial pressure ICP , intracranial temperature BT and mean arterial pressure mSAP are stored in the storage unit 32, and the computing unit 33 can directly calculate the cerebral perfusion pressure CPP according to the acquired intracranial pressure ICP and mean arterial pressure mSAP, wherein the calculation of the cerebral perfusion pressure CPP The formula is: CPP=mSAP-ICP, and then the cerebral perfusion pressure CPP can be directly displayed on the terminal device 30 . Here, compared with the prior art, this embodiment can directly obtain the intracranial pressure ICP and the mean arterial pressure mSAP simultaneously, and can directly calculate and display the cerebral perfusion pressure CPP, eliminating the need to measure the intracranial pressure ICP separately in the prior art , mean arterial pressure mSAP and manual calculation of cerebral perfusion pressure CPP disadvantages.

Here, it should be noted that the terminal device 30 may also include a processor 34, the probe module 10 and the blood pressure measurement module 20 can directly transmit unprocessed physiological data to the terminal device 30, and the processing in the terminal device 30 The device 34 analyzes and processes each physiological data. In this way, the cost of the probe module 10 and the blood pressure measurement module 20 can be reduced, and the versatility of the probe module 10 and the blood pressure measurement module 20 can be improved. Specifically, for example, the probe module 10 does not need to set the operational amplifier 111, the feedback unit 112, etc., but only needs to directly transmit the intracranial pressure ICP and intracranial temperature BT sensed by the pressure sensor and temperature sensor to the terminal device 30, The processor 34 in the terminal device 30 then amplifies and samples the intracranial pressure ICP and intracranial temperature BT, and finally obtains readable intracranial pressure ICP and intracranial temperature BT; for another example, the blood pressure measurement module 20 can The measured systolic pressure SP and diastolic pressure DP are directly transmitted to the terminal device 30 , and the processor 34 (or computing unit 33 ) in the terminal device 30 directly calculates the mean arterial pressure mSAP according to the systolic pressure SP and diastolic pressure DP.

The terminal device 30 can simultaneously display parameters such as intracranial pressure ICP, intracranial temperature BT, mean arterial pressure mSAP, cerebral perfusion pressure CPP, systolic pressure SP, diastolic pressure DP and pulse, but not limited thereto. The selected part of the actual situation shows the above parameters. The display mode of the terminal device 30 can be, for example, a numerical display, but it is not limited thereto. In other embodiments, the waveforms of various parameters within a period of time can be intuitively displayed, such as intracranial pressure waveforms, intracranial temperature waveforms, cerebral Perfusion pressure waveform, etc., so that it is convenient for medical staff to more intuitively and accurately monitor the dynamic trend changes of patients.

In another embodiment of the present invention, the terminal device 30 can monitor the intracranial pressure ICP and intracranial temperature BT in real time, and regularly monitor the cerebral perfusion pressure CPP, that is, the terminal device 30 can simultaneously display the intracranial pressure ICP and intracranial temperature BT and cerebral perfusion pressure CPP.

It has been clinically shown that when the intracranial pressure ICP rises and the cerebral perfusion pressure CPP falls to a certain extent, the cerebrovascular autoregulation mechanism is out of balance, and the cerebral blood flow CBF will drop sharply; and when the intracranial pressure ICP rises close to the mean arterial pressure mSAP When the brain blood flow is almost completely stopped, it can lead to irreversible cerebral ischemia, brain manipulation and even death. In addition, the level of intracranial temperature BT also directly affects the degree and scope of nerve cell damage. Therefore, in this embodiment, while monitoring the intracranial pressure ICP, the cerebral perfusion pressure CPP and the intracranial temperature BT are monitored, which is helpful for improving treatment and reducing mortality. Compared with the prior art, this embodiment can know the patient's condition in time according to the relevant parameters displayed by the terminal device 30, and apply appropriate treatment means to the brain-injured patient in time to avoid missing the best treatment opportunity.

The prompt unit 35 of the terminal device 30 of the present invention is used to judge whether each parameter of monitoring (including intracranial pressure ICP, intracranial temperature BT, mean arterial pressure mSAP, cerebral perfusion pressure CPP, systolic pressure SP, diastolic pressure DP and pulse) is There is an abnormality, and when it is judged that there is an abnormality, the prompt unit 35 will work and issue a warning. The storage unit 32 of the terminal device 30 stores thresholds corresponding to each parameter, and when each parameter increases or decreases to the corresponding threshold, the prompt unit 35 will issue a warning. In other embodiments, the terminal device 30 can also simultaneously determine whether drainage is required. Specifically, the multi-parameter monitoring system 100 also includes a drainage tube (not marked), one end of the drainage tube is placed in the ventricle, and the other end is connected to a drainage bottle, for example When it is judged that the ICP of the intracranial pressure is abnormal, the terminal device 30 can prompt that a drainage operation is required. At this time, the residual blood and bloody cerebrospinal fluid in the ventricle are drawn out through the drainage tube to reduce the intracranial pressure and reduce the impact of hemoglobin on the ventricle wall. Stimulate and reduce cerebral edema. At the same time, real-time observation of intracranial pressure ICP dynamics can prevent excessive drainage from causing low intracranial pressure.

Specifically, for example, the storage unit 32 stores intracranial pressure threshold, cerebral perfusion pressure threshold, mean arterial pressure threshold, systolic blood pressure threshold and intracranial temperature threshold. When each parameter increases or decreases to the corresponding threshold, the The prompt unit 35 will issue a warning. For another example, when intracranial pressure ICP, mean arterial pressure mSAP, and cerebral perfusion pressure CPP meet a certain condition at the same time, the prompt unit 35 issues a warning. Clinical research shows that: when intracranial pressure ICP>40mmHg, cerebral perfusion pressure CPP< At 50 mmHg, the autoregulatory mechanism of the cerebral blood vessels is out of balance, and the CBF of the cerebral blood flow will drop sharply; or when the intracranial pressure ICP rises close to the mean arterial pressure mSAP, the intracranial blood is almost completely stopped, which can lead to irreversible cerebral ischemia, brain operation and even death, at this time, the prompt unit 35 issues a warning and the warning intensity can be appropriately enhanced. The above prompts corresponding to different parameters can be different, for example, displaying prompt lights of different colors, but they can also be the same. After hearing the prompts, the medical staff can check the terminal device 30 and confirm which parameter is abnormal.

The present invention only shows an embodiment in which a group of probe modules 10 and blood pressure measurement module 20 correspond to one terminal device 30, wherein a group of probe modules 10 and blood pressure measurement module 20 may correspond to a patient, but this does not mean limit. As shown in FIG. 5 , the entire monitoring system 100 includes a plurality of patients (patient 1~patient n) and multiple sets of corresponding probe modules 10 and blood pressure measurement modules 20. These probe modules 10, blood pressure measurement modules 20 maintains communication with a terminal device 30 at the same time. Specifically, at this time, the terminal device 30 can be a communication device for a doctor in charge of multiple patients. In practical applications, the doctor can view the measurement data through the APP software, understand the condition of each patient online in real time, and collect patient parameters in each ward at the same time. The real-time changes of the system enable the doctor to obtain the physical condition of each patient in the duty room, and can automatically remind the doctor when the patient is critically ill.

It is worth mentioning here that, as shown in FIG. 6 , the multi-parameter monitoring system 100 in the present invention also includes a central monitoring system 40 at the nurse's station. The central monitoring system 40 provides a centralized monitoring function, and the central monitoring system 40 can communicate with each terminal. Establish communication between the devices 30, obtain and display measurement data in real time, and the central monitoring system 40 can automatically analyze whether each parameter is normal, and trigger an alarm device in case of abnormality or emergency so that medical staff can take corresponding treatment in a timely and effective manner measure. Specifically, at this time, the terminal device 30 can be the general monitor of each ward, and the central monitoring system 40 can monitor the conditions of patients in multiple wards.

It should be understood that although this description is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the description is only for clarity, and those skilled in the art should take the description as a whole, and each The technical solutions in the implementation manners can also be properly combined to form other implementation manners understandable by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions for feasible implementations of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent implementation or implementation that does not depart from the technical spirit of the present invention All changes should be included within the protection scope of the present invention.

Claims (10)

1. A multi-parameter monitoring system, characterized in that it comprises: Terminal Equipment; A probe module, in communication with the terminal device, where the probe module is at least used to acquire intracranial pressure and transmit the intracranial pressure to the terminal device; A blood pressure measurement module, which maintains communication with the terminal device, and the blood pressure measurement module is at least used to obtain the average arterial pressure and transmit the average arterial pressure to the terminal device; Wherein, the terminal device calculates the cerebral perfusion pressure according to the received intracranial pressure and the average arterial pressure, and the terminal device is at least used to display the cerebral perfusion pressure. 2 . The multi-parameter monitoring system according to claim 1 , wherein the terminal device communicates wirelessly with the probe module and the blood pressure measurement module. 3 . 3. The multi-parameter monitoring system according to claim 1, wherein the probe module is also used to acquire intracranial temperature. 4. The multi-parameter monitoring system according to claim 3, wherein the terminal device is also used to display some or all parameters of the intracranial temperature, the intracranial pressure, and the mean arterial pressure . 5. The multi-parameter monitoring system according to claim 4, characterized in that, the display of the parameters is numerical display or waveform display. 6 . The multi-parameter monitoring system according to claim 4 , wherein the terminal device further comprises a prompting unit for judging whether the parameters are abnormal. 7 . The multi-parameter monitoring system according to claim 6 , wherein each of the parameters corresponds to a threshold, and when the parameter increases or decreases to the corresponding threshold, the prompt unit works. 8. The multi-parameter monitoring system according to claim 1, wherein the blood pressure measurement module is also used to obtain systolic blood pressure and diastolic pressure, and the blood pressure measurement module calculates according to the systolic blood pressure and diastolic pressure Obtain the mean arterial pressure. 9. The multi-parameter monitoring system according to claim 1, wherein each said terminal device corresponds to a plurality of said probe modules and a plurality of said blood pressure measurement modules. 10. The multi-parameter monitoring system according to claim 1, characterized in that the multi-parameter monitoring system further comprises a central monitoring system, and each of the central monitoring systems corresponds to a plurality of the terminal devices.