Intelligent temperature measurement converter

Abstract

The utility model relates to an intelligent temperature measurement converter, which comprises a temperature identification converter, a probe plug, an instrument plug and a shell, the temperature identification converter is connected with the temperature measuring probe through the probe plug, is connected with the multi-parameter monitor through the instrument plug, and exchanges data with the multi-parameter monitor; the shell is provided with a closed space, and the temperature identification converter is arranged in the closed space. The intelligent temperature measurement converter can convert resistance value signals of temperature measurement probes different from the multi-parameter monitor in series type into corresponding resistance value signals which can be correctly processed by a temperature measurement module of the multi-parameter monitor, so that the temperature measurement probes different in series type and the multi-parameter monitor are universal.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to an intelligent temperature measuring converter. Background Art

[0002] The intraoperative patient's body temperature is a basic and very important vital sign item in the perioperative period. Since the state promulgated the anesthesia medical quality control standards in 2015, the intraoperative body temperature has been one of the 17 anesthesia quality control indicators, and the intraoperative patient hypothermia rate (≤35.5℃) is an indicator that must be reported by tertiary hospitals. Due to the influence of multiple factors such as the operating room environment, anesthesia, and infusion, the body temperature of surgical patients varies greatly. Especially for major operations, elderly or pediatric patients, hypothermia is prone to occur. Hypothermia is prone to complications during surgery, including chills, arrhythmias, cardiovascular accidents, abnormal coagulation function, immune suppression and other abnormal complications, increasing perioperative risks. Therefore, perioperative temperature monitoring is very important, especially continuous dynamic monitoring of body temperature as a basis for intraoperative warmth preservation.

[0003] Currently, multi-parameter monitors and corresponding temperature probes are often used on the market to continuously and dynamically monitor body temperature. When in use, the temperature probe detects the patient's body temperature and transmits the corresponding data to the temperature measurement module of the multi-parameter monitor for processing, and further displays the body temperature data on the display screen of the multi-parameter monitor for reference by medical staff.

[0004] However, there are technical barriers between multi-parameter monitors produced by different companies. The temperature measurement modules of multi-parameter monitors of different brands are very different, resulting in different series of temperature probes that cannot be used in multi-parameter monitors of different brands, but need to be matched with multi-parameter monitors of corresponding brands. In addition, the temperature probes produced by different companies have the same appearance, and medical staff cannot distinguish the series types based on the appearance of the temperature probes alone. Hospitals usually have monitors of different brands at the same time. If the corresponding probes of each brand are used, it will cause inconvenience in clinical use and increase the difficulty of management; if only one brand of probes is used, it will inevitably cause other brands of monitors to be idle, resulting in a waste of resources.

[0005] Therefore, an intelligent temperature measurement converter was developed so that different series of multi-parameter monitors can measure temperature through different probes, solving the problem of inconvenience in clinical use or waste of resources caused by hospitals simultaneously configuring multi-parameter monitors of multiple brands. Utility Model Content

[0006] Based on this, the purpose of the utility model is to overcome the defects or shortcomings of the prior art and provide an intelligent temperature measurement converter, including a temperature identification converter, a probe plug, an instrument plug and a shell; the temperature identification converter is connected to the temperature measuring probe through the probe plug, and is connected to the multi-parameter monitor through the instrument plug to exchange data; the shell is provided with a closed space, and the temperature identification converter is arranged in the closed space.

[0007] The intelligent temperature measurement converter described in the utility model can convert the resistance value signal of the temperature measurement probe of different series types from the multi-parameter monitor into the corresponding resistance value signal that can be correctly processed by the temperature measurement module of the multi-parameter monitor, thereby realizing the common use of temperature measurement probes of different series types and the multi-parameter monitor.

[0008] Furthermore, the memory is an independent storage medium, which can be used to retrieve and rewrite new data when needed, so that the intelligent temperature measurement converter can adapt to new working scenarios.

[0009] Furthermore, the number of the memories is at least 2. One of them can store a resistance-temperature mapping table, and the other is provided with a storage space that can temporarily record and store the patient's body temperature data to cope with the situation of sudden functional abnormality of the multi-parameter monitor.

[0010] Furthermore, a feedback indicator light is included, which is arranged on the housing surface of the intelligent temperature measuring converter and connected to the controller to indicate the recognition progress of the temperature recognition converter. The feedback indicator light can prevent the medical staff from directly placing the body temperature probe in the working environment when the intelligent temperature measuring converter has not completed the recognition, resulting in abnormal recognition.

[0011] Furthermore, the controller includes a control circuit, and the control circuit is provided with a switch for controlling the on-off circuit; the switch is arranged on the surface of the housing, so that the user can conveniently control the controller to select the series type of the target monitor.

[0012] Furthermore, it also includes a USB plug connected to a power source, which has the advantage of being convenient to use.

[0013] Furthermore, the shell includes a front cover and a rear cover, the front cover and the rear cover are connected to form a box-like structure, the long side surfaces of the box-like structure include smoothly connected arc surfaces and flat surfaces, the arc surfaces are recessed inwards compared to the flat surfaces, so as to facilitate user holding.

[0014] Furthermore, the four corners of the box-like structure are provided with rounded corner structures to prevent accidental scratches on the human body during use.

[0015] Furthermore, it also includes a battery, which provides power for the temperature identification converter and the temperature measuring probe.

[0016] Furthermore, a battery slot is provided on the back side of the accommodating groove of the rear cover, and a detachable battery cover is provided at the battery slot to prevent the battery from falling out of the battery slot and to prevent dust from entering the battery slot.

[0017] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an exploded diagram of the intelligent temperature measuring converter of the present utility model.

[0019] Description of the drawings: temperature identification converter 10, probe plug 20, instrument plug 30, charging plug 40, front cover 51, rear cover 52, battery slot 53, battery cover 54, battery 60, feedback indicator light 70. DETAILED DESCRIPTION

[0020] In view of the problem that different series of temperature measuring probes in the prior art cannot be used in multi-parameter monitors of various brands, the technicians first analyzed the working principle of the temperature measuring probe: the temperature measuring probe in the prior art is made of NTC thermistor, which is a resistor element with a negative temperature coefficient, and its resistance value decreases with increasing temperature. This is because the carrier concentration of the semiconductor material inside it increases with increasing temperature, resulting in a decrease in resistance value. This characteristic makes the NTC thermistor very sensitive to temperature changes and can detect tiny temperature changes. When measuring temperature, the temperature measuring probe transmits the resistance value data corresponding to the current temperature to the temperature measuring module of the multi-parameter monitor. The temperature measuring module stores a resistance-temperature mapping table. The temperature measuring module can find the corresponding temperature value according to the resistance value. The temperature value can be transmitted to the display screen for display after processing.

[0021] The technicians further analyzed and found that the key problem that different series of temperature probes cannot be used in multi-parameter monitors of various brands is that the resistance-temperature mapping tables corresponding to different series of temperature probes are different. Taking the common YSI400 series and 10K series temperature probes on the market as an example, at a room temperature of 25°C, the resistance value of the YSI400 series temperature probe is 2.252kΩ, and the corresponding resistance value of the 10K series temperature probe is 10kΩ. If the 10K series temperature probe is connected to the YSI400 series multi-parameter monitor, the resistance value data received by the multi-parameter monitor is 10kΩ. Since the YSI400 series multi-parameter monitor only stores the resistance-temperature mapping table corresponding to the YSI400 series temperature probe, the resistance-temperature mapping table of the YSI400 series is checked according to the resistance value of 10kΩ, and the corresponding temperature value at this time is -6°C. If the result is directly output, the multi-parameter monitor will display an abnormal temperature value. In addition, the temperature measurement modules of some multi-parameter monitors also include analog circuits, which can eliminate the impact of the environment and reduce the error of temperature reading results. However, the resistance values ​​of 2.252kΩ and 10K series temperature probes at the same temperature vary too much, causing the temperature measurement module of the multi-parameter monitor to be unable to process the resistance value data normally and display an error.

[0022] However, when the multi-parameter monitor leaves the factory, the resistance-temperature mapping table and the analog circuit are already preset in the temperature measurement module. Therefore, after purchasing the multi-parameter monitor, the user cannot add resistance-temperature mapping tables corresponding to multiple series types or change the circuit structure and calculation formula in the analog circuit, thereby making the multi-parameter monitor compatible with multiple series of temperature measurement probes.

[0023] In view of this, the utility model provides an intelligent temperature measurement converter, which enables temperature measurement probes of different series and types to be used in multi-parameter monitors of different series and types.

[0024] The intelligent temperature measurement converter of the present application comprises a temperature identification converter 10, a probe plug 20, an instrument plug 30, a charging plug 40 and a housing. The temperature identification converter 10 reads the resistance value of the temperature measurement probe and converts it into a resistance value or a corresponding analog signal that can be recognized by the monitor.

[0025] Specifically, the temperature identification converter 10 includes an identifier, a memory, a signal converter and a controller. The identifier is used to obtain the real-time resistance value of the temperature probe; the identifier compares the real-time resistance value with the target object, and determines the series model of the temperature probe according to the comparison result. Each target object is set to the characteristic resistance value of a certain series of temperature probes under a room temperature environment of 25°C. In this embodiment, two target objects are set to the characteristic resistance value of 2.252kΩ of the YSI400 series temperature probe and the characteristic resistance value of 10kΩ of the 10K series temperature probe.

[0026] The memory stores a resistance-temperature mapping table, in which the resistance value corresponding to 25°C is a characteristic resistance value, which can be used as a target object. In this embodiment, the memory stores two resistance-temperature mapping tables, corresponding to the YSI400 series and 10K series temperature probes, respectively, and the temperature interval in the table is 0.1°C. Further, in some embodiments, the memory is an independent storage medium, which can be taken out and rewritten with new data when needed, such as an SD card, a T-Flash card, etc. In the scenario where the manufacturer updates and upgrades the thermistor or introduces a new series of monitors and temperature probes in the use site, the resistance-temperature mapping table may be updated accordingly, and the independent storage medium can write a new resistance-temperature mapping table according to the needs of the new working scene. After the user replaces the monitor or the temperature probe, there is no need to replace the intelligent temperature measurement converter. The matching of the new series of monitors and temperature probes can be achieved by writing a new resistance-temperature mapping table.

[0027] The signal converter is used to convert the real-time resistance value into the resistance value corresponding to the resistance-temperature mapping table of the target multi-parameter monitor at the current temperature, and output the corresponding resistance value signal to the temperature measurement module of the multi-parameter monitor so that the temperature measurement module correctly displays the real-time temperature.

[0028] The controller is used to control the identifier, the memory and the signal converter. Specifically, the controller transmits the target object information stored in the memory to the identifier. A control circuit is provided for each target object, and a switch for controlling on and off is provided on the control circuit, preferably a key switch, and the key switch is provided on the housing surface of the intelligent temperature measurement converter. When the corresponding key is pressed, the control circuit is turned on, and the controller transmits the corresponding target object information stored in the memory to the identifier.

[0029] The probe plug 20 electrically connects the temperature recognition converter 10 to the temperature measurement probe, and transmits the resistance value data of the temperature measurement probe to the temperature recognition converter 10; the instrument plug 30 is used to electrically connect the temperature recognition converter 10 to the monitor, and transmits the resistance value or its corresponding analog signal processed by the temperature recognition converter 10 to the monitor. The charging plug 40 is connected to the power supply, and the power supply provides electrical energy for the normal operation of the intelligent temperature measurement converter. The temperature recognition converter 10 is connected to the monitor, the temperature measurement probe and the power supply through plugs, which has the advantage of convenient use. In some embodiments, the type of the charging plug 40 is preferably a USB plug. The USB plug can directly connect to the monitor to obtain electrical energy, or connect to a power adapter and then directly insert into the socket in the room to obtain electrical energy. Setting the charging plug 40 as a USB plug has the advantage of convenient use. In other embodiments, the types of the probe plug, the instrument plug and the charging plug are not limited.

[0030] The housing includes a front cover 51 and a rear cover 52 connected to the front cover. The front cover and the rear cover are each provided with a receiving groove, and the receiving grooves are oppositely arranged to form a closed space for receiving the temperature recognition converter 10, and the temperature recognition converter 10 is arranged in the closed space. In some embodiments, the front cover and the rear cover are in a box-shaped structure. Among them, the four corners of the box-shaped structure are provided with rounded corner structures to prevent accidental scratching of the human body during use; the long side surface of the box-shaped structure includes a smoothly connected arc surface and a flat surface, and the arc surface is recessed inward compared with the flat surface, and the arc surface is convenient for the user to hold.

[0031] The working principle of the temperature recognition converter 10:

[0032] For the convenience of explanation, it is assumed that the currently used monitor is a 10K series monitor. First, the medical staff connects the temperature measurement probe, the monitor and the intelligent temperature measurement converter of the present application and places them to work at room temperature (25 °C). Then, according to the series type of the monitor, manually press the key switch corresponding to the 10K series to confirm the series of the current target monitor. The identifier in the circuit board reads the resistance value data of the temperature measurement probe 100 times within 1 second, then excludes the anti-interference data and takes its average value, denoted as the resistance value R, and compares the resistance value R with 2.252 kΩ and 10 kΩ.

[0033] If the difference between R and 2.252 kΩ is smaller, it means that R is closer to 2.252 kΩ, then it is judged that the temperature measurement probe is of the YSI400 series and does not match the 10K series of the monitor. The signal converter retrieves the resistance value-temperature mapping table of the YSI400 series, looks up the temperature T corresponding to R; then reads the resistance value-temperature mapping table of the 10K series, and finds the corresponding resistance value R' according to T, and outputs R' to the temperature measurement module of the monitor.

[0034] If the difference between R and 10kΩ is smaller, it means that R is closer to 10kΩ. Then the temperature probe is judged to be 10K series, which matches the 10K series of the monitor, and R is directly output to the temperature measurement module of the monitor.

[0035] After the comparison is completed, the signal converter continues to perform the signal conversion operation to output the resistance value R' or directly outputs the resistance value R without performing the signal conversion operation according to the comparison result.

[0036] Since the temperature measurement module of the monitor has a preset resistance-temperature mapping table for the corresponding series when it leaves the factory, the monitor can obtain the corresponding temperature according to the resistance value input by the intelligent temperature measurement converter and display it on the monitor. If the temperature displayed on the monitor is normal room temperature, it means that the temperature measurement probe can measure the patient's body temperature. If the temperature display does not match the room temperature, the user can press the button to re-match. After the work is completed, the next time the temperature measurement probe is replaced, press the button and the intelligent temperature measurement converter will re-identify the series of the temperature measurement probe and perform the corresponding actions mentioned above.

[0037] Furthermore, during the operation of the temperature probe, a general multi-parameter monitor will be used as the power source of the temperature probe, but the charging interfaces of multi-parameter monitors of different brands are different and may not be compatible, and the instrument plug only has the function of transmitting data and has no charging function. Therefore, the intelligent temperature measurement converter of the present application also includes a battery 60, which provides power for the temperature identification converter 10 and the temperature measurement probe. A battery slot 53 is provided on the back of the accommodating groove of the rear cover 52, and a removable battery cover 54 is provided at the battery slot. The battery can be placed in the battery slot 53 of the rear cover, and the battery cover 54 is provided at the battery slot to prevent the battery from falling out of the battery slot 53 and to prevent dust from entering the battery slot 53.

[0038] In addition, since the multi-parameter monitor has many measurement parameters, large processing data, and long continuous working time, it is easy to have functional abnormalities such as freezing and data loss during use. In this regard, the number of memories of the intelligent temperature measurement converter of the present application is at least 2, one of which can store the resistance-temperature mapping table, and the other is provided with a storage space that can temporarily record and store the patient's body temperature data to deal with the sudden functional abnormality of the multi-parameter monitor. In addition, the battery 60 can also be used as a backup power supply. When the monitor loses power due to an accidental power outage or the patient needs to be temporarily transferred to remove the power supply of the monitor, the battery 60 provides power to maintain the normal operation of the memory, ensuring that the memory can continue to record the patient's body temperature data.

[0039] During the test of the above-mentioned intelligent temperature measurement converter, the technicians received feedback that the intelligent temperature measurement converter had unstable recognition effect. The technicians checked and adjusted the working process of the relevant circuit and hardware design, but there were still abnormal situations of unstable recognition effect. In this regard, the technicians further carefully analyzed the usage habits of medical staff and found that the medical staff quickly connected the temperature probe and directly placed the temperature probe in the working environment when using it, without waiting for the intelligent temperature measurement converter to complete the recognition of the temperature measurement probe series type, resulting in the temperature environment of the temperature measurement probe being far away from the set room temperature environment of 25°C, and the deviation between the real-time resistance value and the characteristic resistance value was large, resulting in unstable recognition effect. In this regard, the technicians further set a feedback prompt light 70, which prompts the recognition progress of the temperature recognition converter 10, is set on the outer shell surface of the intelligent temperature measurement converter, and is connected to the controller. When a temperature probe is connected to the intelligent temperature measuring converter, the feedback indicator 70 emits red light, and the temperature identification converter 10 simultaneously starts to identify the model of the temperature probe; after the identification is completed, the controller transmits a feedback signal to the feedback indicator 70, and the feedback indicator 70 turns green to indicate that the identification is complete and the temperature probe can be placed in the working environment for use. When the temperature probe is unplugged from the intelligent temperature measuring converter and then reconnected, the feedback indicator 70 emits red light, and the temperature identification converter 10 simultaneously starts to identify the model of the temperature probe.

[0040] Compared with the prior art, the intelligent temperature measurement converter of the utility model can convert the resistance value signal of the temperature measurement probe of a different series type from the multi-parameter monitor into a corresponding resistance value signal that can be correctly processed by the temperature measurement module of the multi-parameter monitor, thereby realizing the common use of temperature measurement probes of different series types with the multi-parameter monitor. A battery is also provided on the intelligent temperature measurement converter to be used as a backup power supply, and the battery is used in combination with the memory to cope with the situation of sudden functional abnormality of the multi-parameter monitor. In addition, a feedback prompt light is provided to prevent the medical staff from directly placing the body temperature probe in the working environment when the intelligent temperature measurement converter has not yet completed the recognition, resulting in the problem of abnormal recognition.

[0041] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.

Claims

1. An intelligent temperature measuring converter, characterized in that: It includes a temperature identification converter, a probe plug, an instrument plug and a shell; the temperature identification converter is connected to the temperature measuring probe through the probe plug, and is connected to the multi-parameter monitor through the instrument plug to exchange data; the shell is provided with a closed space, and the temperature identification converter is arranged in the closed space.

2. The intelligent temperature measuring converter according to claim 1, characterized in that: The temperature identification converter comprises an identifier, a memory, a signal converter and a controller which are interconnected and exchange data; the memory is an independent storage medium.

3. The intelligent temperature measuring converter according to claim 2, characterized in that: The number of the memories is at least 2.

4. The intelligent temperature measuring converter according to claim 2, characterized in that: It also includes a feedback prompt light, which is arranged on the shell surface of the intelligent temperature measurement converter and is connected to the controller to prompt the identification progress of the temperature identification converter.

5. The intelligent temperature measuring converter according to claim 2, characterized in that: The controller comprises a control circuit, and a switch for controlling the on and off of the circuit is arranged on the control circuit; the switch is arranged on the surface of the housing.

6. The intelligent temperature measuring converter according to claim 1, characterized in that: A USB plug is also included for connection to the power supply.

7. The intelligent temperature measuring converter according to claim 1, characterized in that: The housing comprises a front cover and a rear cover, wherein the front cover and the rear cover are connected to form a box-shaped structure, wherein the long side surface of the box-shaped structure comprises a smoothly connected arc surface and a flat surface, and the arc surface is concave inwardly compared to the flat surface.

8. The intelligent temperature measuring converter according to claim 7, characterized in that: The four corners of the box-like structure are provided with rounded corner structures.

9. The intelligent temperature measuring converter according to claim 1, characterized in that: It also includes a battery, which provides electrical energy for the temperature identification converter and the temperature measuring probe.

10. The intelligent temperature measuring converter according to claim 7, characterized in that: A battery slot is arranged on the back side of the accommodating groove of the rear cover, and a detachable battery cover is arranged at the battery slot.

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