阅读说明：本技术 多功能智能温控手术器械台 (Multifunctional intelligent temperature control surgical instrument table ) 是由 王桂红 周颖 苏海英 陈荣珠 申震 于 2020-12-28 设计创作，主要内容包括：本发明公开了一种多功能智能温控手术器械台,其包括：冲洗液容器；活动托盘,所述活动托盘用于放置冲洗液容器；温度检测模块,温度检测模块用于检测冲洗液容器的温度；控制模块；供电模块,供电模块连接于活动托盘,且供电模块电连接于温度检测模块和控制模块,供电模块用于检测托盘上放置有冲洗液容器并用于对温度检测模块和控制模块进行供电；加热模块,控制模块的输入端电连接于温度检测模块,控制模块的输出端电连接于加热模块；控制模块用于接收温度检测模块发出的实时温度值并与其内部设定值进行比较,以用于控制加热模块的开关。实现对温度控制功能,可显著减少手术用品引起的患者核心体温的下降,降低术后出现寒战的概率。(The invention discloses a multifunctional intelligent temperature control surgical instrument table, which comprises: a rinse solution container; the movable tray is used for placing a flushing liquid container; the temperature detection module is used for detecting the temperature of the flushing liquid container; a control module; the power supply module is connected to the movable tray, electrically connected to the temperature detection module and the control module, and used for detecting that the washing liquid container is placed on the tray and supplying power to the temperature detection module and the control module; the input end of the control module is electrically connected with the temperature detection module, and the output end of the control module is electrically connected with the heating module; the control module is used for receiving the real-time temperature value sent by the temperature detection module and comparing the real-time temperature value with an internal set value of the control module so as to control the switch of the heating module. The temperature control function is realized, the core body temperature of the patient caused by the surgical articles can be obviously reduced, and the probability of shivering after the operation is reduced.)

1. The utility model provides a multi-functional intelligent control by temperature change surgical instruments platform which characterized in that, it includes:

a rinse solution container;

the movable tray is used for placing the flushing liquid container;

the temperature detection module is used for detecting the temperature of the flushing liquid container;

a control module;

the power supply module is connected to the movable tray, electrically connected to the temperature detection module and the control module, and used for detecting that the flushing liquid container is placed on the tray and supplying power to the temperature detection module and the control module;

the input end of the control module is electrically connected with the temperature detection module, and the output end of the control module is electrically connected with the heating module;

the control module is used for receiving the real-time temperature value sent by the temperature detection module and comparing the real-time temperature value with an internal set value of the control module so as to control the switch of the heating module.

2. The multifunctional intelligent temperature-controlled surgical instrument table according to claim 1, wherein the power supply module comprises a wireless charging transmitting terminal and a wireless charging receiving terminal, the wireless charging transmitting terminal is used for detecting the magnet module of the washing fluid container and generating a magnetic field within a working distance range, and the wireless charging receiving terminal is used for supplying power to the temperature detection module and the control module when receiving the magnetic field.

3. The multifunctional intelligent temperature-controlled surgical instrument table as claimed in claim 2, wherein the working distance between the wireless charging transmitting end and the wireless charging receiving end is 5-20 mm.

4. The multifunctional intelligent temperature-controlled surgical instrument table according to claim 1, further comprising a digital display temperature control panel electrically connected to the temperature detection module and configured to display the temperature of the rinsing liquid container.

5. The multifunctional intelligent temperature-controlled surgical instrument table according to claim 1, wherein the heating module is a heating sheet, and the heating power of the heating sheet is 100W at most.

6. The multifunctional intelligent temperature-controlled surgical instrument table according to claim 1, further comprising a wireless data transmission module, wherein an output end of the control module is electrically connected to the wireless data transmission module, and the control module is configured to receive the real-time temperature value sent by the temperature detection module and transmit the real-time temperature value to the wireless data transmission module.

7. The multifunctional intelligent temperature-controlled surgical instrument table according to claim 1, wherein the power supply module comprises a lithium battery, and the lithium battery is a 18650 battery or a 21700 battery.

8. The multifunctional intelligent temperature-controlled surgical instrument table according to claim 1, further comprising a lifting table, wherein the movable tray is disposed on the lifting table, and the height of the lifting table can be adjusted by using a telescopic structure.

Technical Field

The invention relates to a multifunctional intelligent temperature control surgical instrument table.

Background

The surgical instrument table is auxiliary equipment for surgical patients in perioperative period, and is mainly used for placing surgical instruments, dressings and intraoperative flushing liquid. At present, the flushing fluid placed on the surgical instrument table is to be placed in advance in a heating box for heating, and then the liquid in the flushing fluid is poured when the surgical instrument table is used in the operation. Along with the extension of the operation time, the temperature of the flushing liquid can be gradually reduced, and when the flushing liquid is positioned below the efficient air supply outlet of the laminar flow purification operating room, the temperature reduction rate can be remarkably increased, and the temperature is more difficult to maintain constant; the temperature of surgical instruments, dressings, flushing fluid and other surgical supplies is reduced, so that the core body temperature of a patient is reduced, the heat loss of the body is increased, and the probability of chill after surgery is increased; meanwhile, the temperature of the poured liquid is not easy to control when the washing liquid is used in the operation, and the temperature can be predicted by hand washing nurses.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a multifunctional intelligent temperature control surgical instrument table.

The invention is realized by the following technical scheme:

a multi-functional intelligent control by temperature change surgical instruments platform, it includes:

a rinse solution container;

the movable tray is used for placing the flushing liquid container;

the temperature detection module is used for detecting the temperature of the flushing liquid container;

a control module;

the power supply module is connected to the movable tray, electrically connected to the temperature detection module and the control module, and used for detecting that the flushing liquid container is placed on the tray and supplying power to the temperature detection module and the control module;

the input end of the control module is electrically connected with the temperature detection module, and the output end of the control module is electrically connected with the heating module;

the control module is used for receiving the real-time temperature value sent by the temperature detection module and comparing the real-time temperature value with an internal set value of the control module so as to control the switch of the heating module.

Furthermore, the power supply module comprises a wireless charging transmitting end and a wireless charging receiving end, the wireless charging transmitting end is used for detecting the magnet module of the washing liquid container within the working distance range and generating a magnetic field, and the wireless charging receiving end receives the magnetic field to be used for supplying power to the temperature detection module and the control module.

Further, the working distance between the wireless charging transmitting end and the wireless charging receiving end is 5-20 mm.

Furthermore, the multifunctional intelligent temperature control surgical instrument table further comprises a digital display temperature control panel, and the digital display temperature control panel is electrically connected to the temperature detection module and used for displaying the temperature of the flushing liquid container.

Further, the heating module is a heating plate, and the heating power of the heating plate is 100W at most.

Furthermore, the multifunctional intelligent temperature control surgical instrument table further comprises a wireless data transmission module, wherein the output end of the control module is electrically connected with the wireless data transmission module, and the control module is used for receiving the real-time temperature value sent by the temperature detection module and transmitting the real-time temperature value to the wireless data transmission module.

Further, the power supply module comprises a lithium battery, and the lithium battery is a 18650 battery or a 21700 battery.

Furthermore, multi-functional intelligent control by temperature change surgical instruments platform still includes the elevating platform, the activity tray set up in on the elevating platform, but the elevating platform adopts extending structure can realize the regulation of height.

The invention has the beneficial effects that:

according to the multifunctional intelligent temperature control surgical instrument table, due to the temperature control function, the core body temperature of a patient caused by surgical instruments, dressings, flushing fluid and other surgical supplies can be remarkably reduced, the heat loss of an organism is reduced, hypothermia is avoided, and the probability of shivering after surgery is reduced; meanwhile, the device is helpful for maintaining the body temperature, improving the body temperature condition of the patient, promoting the postoperative quick rehabilitation of the patient, and shortening the postoperative extubation time, the awakening time and the hospitalization time.

Drawings

Fig. 1 is a schematic perspective view of a multifunctional intelligent temperature-controlled surgical instrument table according to an embodiment of the present invention.

Fig. 2 is a schematic front view structural diagram of the multifunctional intelligent temperature-controlled surgical instrument table according to the embodiment of the invention.

Fig. 3 is a schematic partial structural view of the lifting platform according to the embodiment of the invention.

Description of reference numerals:

movable pallet 1

Temperature detection module 2

Control module 3

Power supply module 4

Digital display temperature control panel 5

Lifting platform 6

Detailed Description

The following description of the embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments in which the invention may be practiced.

As shown in fig. 1, 2 and 3, the present embodiment discloses a multifunctional intelligent temperature-controlled surgical instrument table, which includes a washing liquid container, a movable tray 1, a temperature detection module 2, a control module 3, a power supply module 4 and a heating module, wherein the movable tray 1 is used for placing the washing liquid container; the temperature detection module 2 is used for detecting the temperature of the flushing liquid container; the power supply module 4 is connected to the movable tray 1, the power supply module 4 is electrically connected to the temperature detection module 2 and the control module 3, and the power supply module 4 is used for detecting that a washing liquid container is placed on the tray and supplying power to the temperature detection module 2 and the control module 3; the input end of the control module 3 is electrically connected to the temperature detection module 2, and the output end of the control module 3 is electrically connected to the heating module; the control module 3 is used for receiving the real-time temperature value sent by the temperature detection module 2 and comparing the real-time temperature value with an internal set value of the real-time temperature value so as to control the switch of the heating module.

The control module 3 automatically samples and monitors the temperature of the washing liquid container in real time through the temperature detection module 2. When the temperature of the flushing liquid container is lower than the set value of the control module 3, the control module 3 controls the heating module to be opened and starts the heating function, otherwise, the heating function is closed, and the temperature is returned through natural cooling. The multifunctional intelligent temperature-control surgical instrument table has a continuous heating function on the washing liquid container in the operation, the temperature controllable range is 36-43 ℃, and the washing liquid container meets the sterile requirement or can be sterilized at high temperature and high pressure. And the multifunctional intelligent temperature control surgical instrument table is safe and durable.

Wherein, the control module 3 adopts the PID control principle, sets the control temperature range and realizes that the temperature control precision is better than +/-0.5 ℃. The temperature control algorithm of the control module 3 adopts a switch control algorithm which is one of the optimal time control, and is optimized according to the characteristic that the environmental temperature of the system is stable during realization. The time optimal control is an optimal control method proposed by Pontryagin in 1956, which is a method for obtaining allowable control under the condition of satisfying constraint conditions, also called maximum value principle, and a time optimal control system with control variables taking values only in the range of | u (t) | ≦ 1 can be designed by using the maximum value principle, and | u (t) | ≦ 1 takes values of plus or minus 1 in engineering and is switched according to certain rules, so that the transition time of the system from one initial state to another state is shortest, and the optimal switching system is called as a switch control system, namely the switch control system

u_kFor t ═ kT the output of the controller, u_maxThe algorithm has the advantages of simple control, convenient realization and the like, is particularly suitable for an infrared detector temperature control circuit with environment temperature control and safe and simple control algorithm requirement, realizes stable environment temperature, and only controls the interior of the detectorThe temperature in the smaller area has higher stability control requirement. The switch control method is simple, but when the deviation is close to zero, the system is easy to vibrate, and according to the characteristics of the system, the method is improved by adopting two methods. Firstly, the control quantity output each time is reduced, and simultaneously, the temperature sampling frequency, the minimum temperature resolution and the frequency of system control quantity output of the system are improved, so that the system can oscillate within a required temperature range under the conditions that the environment has no sharp temperature change and the heat productivity of the system is relatively stable; secondly, the control algorithm is changed into three-section type switch control in order to improve the quick response capability of the system, as shown in the following formula.

During engineering implementation, a military-grade single chip microcomputer is used as a control unit, a PWM signal is generated based on a switch control algorithm, an external FET circuit is driven, the PWM signal is converted into a current signal, and the TEC is driven to refrigerate. The specific flow for realizing the core temperature control algorithm of the temperature control software comprises the steps of firstly measuring the current temperature, then judging whether the acquired current temperature is greater than the set temperature, and if so, comparing whether the difference value between the set temperature and the current temperature is less than epsilon₁If less than, comparing the difference with epsilon₂If the duty ratio is larger than the preset value, modifying the frequency of duty ratio increase to be f₁. When the difference is less than ∈₂When the duty ratio is large, the frequency of duty ratio increase is modified to be f₂. And then outputting a duty ratio increase mark signal to realize the temperature reduction.

The multifunctional intelligent temperature-control surgical instrument table is mainly used for placing and realizing temperature monitoring and control of surgical instruments, dressings and intraoperative flushing liquid, so that the surgical instruments, the dressings and the flushing liquid at normal temperature are close to or higher than the body temperature of a patient. By the temperature control function, the core body temperature of a patient caused by surgical instruments, dressings, flushing fluid and other surgical supplies can be remarkably reduced, the heat loss of the body is reduced, hypothermia is avoided, and the probability of shivering after surgery is reduced; meanwhile, the device is helpful for maintaining the body temperature, improving the body temperature condition of the patient, promoting the postoperative quick rehabilitation of the patient, and shortening the postoperative extubation time, the awakening time and the hospitalization time.

The power supply module 4 comprises a wireless charging transmitting end and a wireless charging receiving end, the wireless charging transmitting end is used for detecting a magnet module of the flushing liquid container in a working distance range and generating a magnetic field, and the wireless charging receiving end receives the magnetic field and is used for supplying power to the temperature detection module 2 and the control module 3. The power supply module 4 mainly adopts the electromagnetic induction principle, and realizes energy transfer by energy coupling through a coil. By utilizing Faraday electromagnetic induction, when current passes through a coil of the wireless charging transmitting terminal, a magnetic field is generated; when the magnetic field passes through the coil of the wireless charging receiving end, current is generated by electromagnetic induction, and therefore energy is transferred from the wireless charging transmitting end to the wireless charging receiving end. The wireless transmitting terminal that charges adopts magnetism to be close the module as the switch, and in the working distance scope that the magnet module of washing liquid container reached the wireless transmitting terminal that charges, the wireless transmitting terminal that charges began work, produces magnetic field. When the magnetic field passes through the coil of the wireless charging receiving end, the electromagnetic induction generates current to supply power for the temperature control and detection module.

Wherein, the working distance between wireless transmitting terminal and the wireless receiving terminal that charges is 5 ~ 20 mm. The working distance design of wireless transmitting terminal and the wireless receiving terminal that charges is 5 ~ 20mm, and its effect has two points: 1) the requirement of laying multiple layers of medical sterile cotton cloth on the multifunctional intelligent temperature control surgical instrument table is met; 2) electromagnetic induction only works at a short distance, and interference of electromagnetic radiation on medical instruments can be avoided.

Further, the power supply module 4 includes a lithium battery, and the lithium battery is a 18650 battery or a 21700 battery. The wireless charging transmitting terminal adopts a lithium battery for power supply. Currently, the lithium ion battery cells widely used in industry adopt a cylindrical packaging design, and typically represent 18650 batteries and 21700 batteries. 18650 and 21700 represent diameters of 18mm and 21mm, and lengths of 65mm and 70mm, respectively.

18650 the lithium battery has high safety, and is not explosive and combustible; no toxicity and no pollution, and is authenticated by a RoHS trademark; and the high temperature resistance is good, and the discharging efficiency under the condition of 65 ℃ reaches 100 percent. 18650 the battery is generally packaged by steel case, and under the extreme condition such as collision, the emergence of incident can be reduced as far as possible more, and the security is high. In addition, 18650 the size of each battery cell is small, the energy of each cell can be controlled to a small range, and the influence of a failure can be reduced even if a certain cell of the battery pack fails, as compared with the case of using a large-sized battery cell. 18650 lithium batteries generally have a capacity of 1200mah to 3600mah and have a very low self-discharge rate. The 18650 cells currently can reach an energy density level of 250 Wh/kg.

21700 the single cell capacity of the battery is improved by 35%. Taking 21700 batteries produced by Tesla as an example, after the model 18650 is switched to the model 21700, the capacity of a single battery can reach 3-4.8 Ah, and is greatly improved by 35%. 21700 the system energy density of the battery is improved by about 20%, and the energy density is about 300 Wh/kg. The system energy density of the 1700 battery is higher, so that the integration is convenient, and the weight of the lithium battery energy storage module is reduced. The 24V/100AH output is realized through the series-parallel combination of the lithium batteries.

Multifunctional intelligent temperature control surgical instrument platform still includes wireless data transmission module, and control module 3's output electricity is connected in wireless data transmission module, and control module 3 is used for receiving the real-time temperature value that temperature detection module 2 sent and carries real-time temperature value to wireless data transmission module. The control module 3 simultaneously sends the real-time monitoring temperature data of the washing liquid container to a user through the wireless data transmission module, and provides temperature data reference.

The wireless data transmission module may be a Zigbee wireless data transmission module. The Zigbee technology is a wireless communication technology applied to short distances and low rates. ZigBee is a wireless connection, which can work on 3 frequency bands of 2.4GHz (popular worldwide), 868MHz (popular European) and 915MHz (popular United states), respectively, and has the highest transmission rates of 250kbit/s, 20kbit/s and 40kbit/s, and the transmission distance thereof is in the range of 10-75m, but can be increased continuously. As a wireless communication technology, ZigBee has the following characteristics:

(1) ZigBee has low power consumption, and the transmitting power is only 1 mW. (2) The ZigBee has low cost, and the ZigBee protocol is free from special fee. (3) The communication delay of ZigBee and the activation delay from the dormant state are both very short, the typical search device delay is 30ms, the dormant activation delay is 15ms, and the active device channel access delay is 15 ms. Therefore, the ZigBee technology is suitable for wireless control (such as industrial control occasions and the like) with harsh time delay requirements. (4) The Zigbee network has large capacity, 254 slave devices and a master device can be accommodated in the Zigbee network with a star structure at most, 100 Zigbee networks can exist in one area at most, and the network composition is flexible. (5) ZigBee adopts a collision avoidance strategy, and simultaneously reserves a special time slot for communication services needing fixed bandwidth, thereby avoiding competition and collision of transmitted data. The MAC layer employs a fully acknowledged data transfer mode, and each transmitted packet must wait for an acknowledgement from the receiver. Retransmissions can be performed if problems arise during transmission. (6) ZigBee provides a data packet integrity checking function based on Cyclic Redundancy Check (CRC), and safety performance is high.

Currently, the Zigbee technology has been widely applied to M2M industries in the internet of things industry chain, such as smart grid, smart transportation, smart home, finance, mobile POS terminals, supply chain automation, industrial automation, smart building, fire protection, public safety, environmental protection, meteorology, digital medical treatment, remote sensing, agriculture, forestry, water affairs, coal mines, petrochemicals, and other fields.

The multifunctional intelligent temperature control surgical instrument table further comprises a digital display temperature control panel 5, and the digital display temperature control panel 5 is electrically connected to the temperature detection module 2 and used for displaying the temperature of the flushing liquid container. The temperature of the washing liquid container is displayed in real time through the digital display temperature control panel 5. The multifunctional intelligent temperature control surgical instrument lifting platform has the main functions of placing surgical instruments, dressings and flushing fluid; and the temperature of the flushing fluid in the operation is controlled by adopting a remote control technology, and a preset constant temperature state is maintained; meanwhile, parameters such as temperature of the flushing fluid in the operation are monitored and recorded in real time, and the reference of the data in the operation is provided.

The heating module is a heating plate, and the heating power of the heating plate is 100W at most. The heating plate is mainly used for heating and temperature control of the flushing liquid container. In order to meet the index requirements that the temperature control range of the flushing liquid container covers 36-43 ℃ and the temperature control precision is better than +/-0.5 ℃, the power of the heating plate is designed to be 100W, the temperature drop rate of the flushing liquid at 2 ℃/5min can be solved, the temperature rise rate at 1 ℃/5min can be realized, and the specific accounting process is as follows.

The temperature of the flushing liquid after being heated by the incubator is 38 ℃, and the one-time usage amount is 2 kg. The rinse solution is typically placed in a stainless steel operating basin, and the typical temperature drop rate is about 2 ℃/5min based on the thermal conductivity of the material and the preliminary estimate of environmental convection. The amount of heat emitted from the rinsing liquid within 5 minutes can be obtained by the following calculation, wherein Q is the amount of heat emitted; c_wIs the specific heat capacity of water; m_wIs the mass of water; delta T_wIs the temperature difference of water.

Q＝C_wM_wΔT_w (3)

According to the formula, the heat is emitted within 5 minutes by 4.2 multiplied by 10³J/(kg·℃)×2kg×2℃＝1.68×10⁴J, the heat dissipation within 24h is about 4.8 multiplied by 10⁶J. In order to solve the temperature drop rate of the flushing liquid at 2 ℃/5min, the power of electric heating is at least more than or equal to 62W, the maximum heating power is designed to be 100W, and the temperature rise rate is 1 ℃/5 min.

And 3.6MJ accounting is carried out according to the heat quantity of 1-degree electricity, and in order to realize the temperature control requirement of maintaining 38 +/-0.5 ℃ for 24 hours, the required electricity quantity is 1.3 degrees in consideration of the full-load work of the multifunctional temperature control surgical instrument lifting platform 6. Therefore, the battery power needs to be 24V50Ah, and the design battery power needs to be 24V100Ah in consideration of the actual battery loss.

In the project, the material of the flushing liquid container is checked according to the stainless steel material, and the heat conductivity coefficient is 30W/(m.DEG C). If the material of washing liquid container adopts insulation material, under the natural condition, washing liquid temperature decline speed can show and descend, therefore the temperature rise speed will further improve.

The multifunctional intelligent temperature-control surgical instrument table further comprises a lifting table 6, the movable tray 1 is arranged on the lifting table 6, and the lifting table 6 can be adjusted in height by adopting a telescopic structure. The height can be adjusted by the lifting and retracting of the lifting platform 6.

The multifunctional intelligent temperature control surgical instrument table of the embodiment preliminarily tests the function tests of the wireless charging transmitting end and the wireless charging receiving end at present. The electromagnetic fields of the wireless charging transmitting end and the wireless charging receiving end can completely penetrate through non-metal materials such as sterile dust-free cloth and books. By adopting the power supply of the power supply module 4, the temperature detection module 2 can complete the test of the preset temperature control function, the temperature control precision meets +/-0.5 ℃, and the temperature control range covers 20-100 ℃. The temperature detection module 2 may be a temperature sensor.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.