Intelligent liquid continuous perfusion system and method for fluid endoscopy

Through the intelligent continuous liquid infusion system, the problem of difficult control of liquid pressure and temperature and inconvenient liquid recovery during fluid laparoscopy is solved, efficient and precise control of liquid infusion and recycling is achieved, and the safety of the surgical environment and resource utilization rate are improved.

CN119733131APending Publication Date: 2025-04-01RUIJIN HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE +1
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Patent Information

Application Number
CN202411834579.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-04-01

AI Technical Summary

Technical Problem

The existing flushing equipment for fluid laparoscopy cannot accurately adjust the liquid pressure, the liquid temperature is difficult to control, the liquid recycling is inconvenient and digital monitoring cannot be monitored, resulting in poor surgical environment and waste of resources.

Method used

An intelligent liquid continuous infusion system is designed, including a vehicle body, a filling device and a liquid recovery device. The infusion device is able to adjust the pressure and temperature of the liquid through the controller, the conveying assembly and the detection unit, and collect and adjust the flow rate of the liquid through the negative pressure unit.

Benefits of technology

Accurate control of liquid pressure and temperature is achieved, ensuring continuous and efficient infusion and recycling of liquids, avoiding excessive energy consumption or liquid accumulation, and improving the safety of the surgical environment and resource utilization rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an intelligent liquid continuous perfusion system and method for fluid endoscopy, the intelligent liquid continuous perfusion system for fluid endoscopy comprises a vehicle body, a perfusion device and a liquid recovery device, the perfusion device is arranged on the vehicle body, and the perfusion device comprises a controller, a conveying assembly connected to the controller and a detection unit; the conveying assembly comprises a first liquid bag and a conveying pump for conveying liquid in the first liquid bag through a conveying pipeline, the detection unit can obtain the pressure of the liquid in the conveying pipeline, and the controller can obtain information of the detection unit and control operation of the conveying pump; the liquid recovery device is arranged on the vehicle body and comprises a liquid storage unit and a negative pressure unit, the negative pressure unit can generate negative pressure to drain liquid at the surgical site of the patient to the liquid storage unit, the delivery pump adjusts the flow of the liquid in the delivery pipeline, and the negative pressure unit adjusts the liquid collection speed of the liquid storage unit. Accumulation of liquid at the surgical site of the patient due to too slow drainage of the liquid at the surgical site of the patient is avoided.
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Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to an intelligent liquid continuous perfusion system and method for fluid laparoscope surgery. Background Art

[0002] Most of the existing flushing equipment currently only has a separate flushing function, relying on gravity to pressurize the liquid. However, during surgery, especially fluid laparoscopic surgery, if the pressure of the liquid needs to be adjusted, the height of the flushing liquid bag must be manually adjusted. Not only is the operation cumbersome, but the pressure of the flushing liquid cannot be accurately adjusted. The liquid temperature is easily affected by the environment and cannot be maintained. When recovering the liquid, only negative pressure is provided to suck the liquid into a one-time collection liquid bag, and digital monitoring of the collected liquid cannot be formed. The disposable collection liquid bag lacks a sealing function, which can easily cause pollution to the operating room. At the same time, it cannot be reused, which brings many environmental problems and consumes labor and costs.

[0003] Therefore, how to provide an intelligent liquid continuous perfusion system for fluid laparoscopy to at least partially solve the above-mentioned drawbacks is a technical problem that technicians in this field currently need to solve. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent liquid continuous perfusion system and method for fluid laparoscopy, which can pressurize the liquid to adjust the pressure of the liquid, heat the liquid and maintain the temperature of the heated liquid within a certain range, and adjust the speed at which the liquid storage unit collects the liquid to avoid excessive energy consumption caused by excessive liquid flow, and avoid liquid accumulation caused by excessively slow liquid flow.

[0005] To achieve the above object, the present invention provides an intelligent liquid continuous perfusion system for fluid laparoscopy, comprising:

[0006] Vehicle body;

[0007] The filling device is arranged on the vehicle body, and includes a controller, a conveying assembly connected to the controller, and a detection unit, wherein the conveying assembly includes a first liquid bag and a conveying pump for conveying liquid in the first liquid bag through a conveying pipeline, the detection unit can obtain the liquid pressure in the conveying pipeline, and the controller can obtain information of the detection unit and control the operation of the conveying pump;

[0008] The liquid recovery device is arranged on the vehicle body, and comprises a liquid storage unit and a negative pressure unit. The negative pressure unit can generate negative pressure for draining the liquid from the surgical site of the patient to the liquid storage unit for collection.

[0009] Preferably, the perfusion device further comprises a heating module, the heating module comprising two plate structures spaced apart to form a heating chamber, and a heating unit for heating at least one of the plate structures;

[0010] The delivery pipeline between the first liquid bag and the delivery pump includes a second liquid bag installed in the heating chamber. An installation groove for installing the detection unit is provided between the two plate structures. The delivery pump can drive the liquid in the first liquid bag to be delivered to the second liquid bag to apply pressure to the two plate structures.

[0011] Preferably, the heating unit comprises a power module, a heating module connected to the power module, and a heat dissipation module located on a side of the heating module away from the plate structure, and the heating module is arranged on a side of the plate structure away from the heating chamber;

[0012] The plate structure is connected with a temperature control meter to detect the temperature of the plate structure;

[0013] A relay is provided between the heating module and the power module to control the on and off of the current.

[0014] Preferably, the delivery assembly further comprises a driver connected to the delivery pump, and the driver can drive the delivery pump to operate;

[0015] The controller includes:

[0016] Control board, connected to the driver, temperature controller, and relay;

[0017] The display is connected to the control panel and is used for data display and data input.

[0018] Preferably, the second fluid bag comprises an inlet for liquid inflow, an outlet for liquid outflow, and a built-in flow channel connected to the inlet and the outlet;

[0019] The built-in flow channel is provided with a plurality of spaced-apart isolation strips.

[0020] Preferably, it also includes a support rod for hanging the first fluid bag, and the support rod is installed on the vehicle body;

[0021] The support rod is a telescopic rod, and a base is provided at the top of the support rod. A detector for detecting the height of the support rod is provided at the bottom of the base. A fixing seat and a sensor are also provided on the base. A hanger for hanging the first liquid bag is provided on the fixing seat, and the sensor is used to detect the pressure of the fixing seat.

[0022] Preferably, the liquid storage unit comprises:

[0023] A liquid tank having a receiving space for receiving liquid;

[0024] The liquid level sensor is installed in the liquid tank to detect the height of the liquid surface.

[0025] Preferably, the negative pressure unit comprises:

[0026] Negative pressure line, used for the flow of fluid from the patient's surgical site to the fluid tank;

[0027] A negative pressure pump is connected to the liquid tank and is connected to the negative pressure pipeline through the gas path of the liquid tank, so that the negative pressure pipeline is in a negative pressure state;

[0028] The control module is used to control the operation of the negative pressure pump and the negative pressure of the negative pressure pipeline.

[0029] Preferably, it also includes a drainage station, which includes a docking part that can be docked with a liquid recovery device, a magnetic suction part for magnetically attracting the liquid recovery device, two guide parts arranged on both sides of the docking part, an anti-collision part arranged on the opposite side of the two guide parts, a drainage component for extracting liquid from the liquid tank, and a cleaning unit for cleaning the liquid tank.

[0030] Preferably, the detection unit is a pressure sensor for detecting the pressure between the two plate structures.

[0031] A method for continuous intelligent liquid perfusion for fluid laparoscopy, applicable to the above-mentioned intelligent liquid continuous perfusion system for fluid laparoscopy, comprising:

[0032] Obtain the set flow rate of the perfusion device;

[0033] Controlling the delivery pump to deliver the liquid in the first fluid bag along the delivery pipeline at a set flow rate;

[0034] Calculating or querying the flow rate of the liquid collected by the liquid storage unit when the negative pressure unit provides different negative pressure values;

[0035] The negative pressure unit is controlled to adjust the negative pressure value so that the flow rate of the collected liquid matches the set flow rate.

[0036] Compared with the above-mentioned background technology, the intelligent liquid continuous perfusion system for fluid laparoscopy provided by the present invention includes a vehicle body, a perfusion device and a liquid recovery device. The perfusion device is arranged on the vehicle body, including a controller, a conveying component connected to the controller and a detection unit. The conveying component includes a first liquid bag and a conveying pump for conveying liquid in the first liquid bag through a conveying pipeline. The detection unit can obtain the liquid pressure in the conveying pipeline, and the controller can obtain the information of the detection unit and control the operation of the conveying pump; the liquid recovery device is arranged on the vehicle body, including a liquid storage unit and a negative pressure unit. The negative pressure unit can generate negative pressure, which is used to drain the liquid in the patient's surgical site to the liquid storage unit for collection.

[0037] Specifically, the liquid in the first liquid bag is transported along the delivery pipeline at a set flow rate through the delivery pump, and the negative pressure unit is adjusted to drain the liquid from the patient's surgical site to the liquid storage unit for collection, and then the liquid storage unit is centrally processed. With this arrangement, the liquid flow in the delivery pipeline can be adjusted by the delivery pump, and the speed at which the liquid is collected by the liquid storage unit can be adjusted by the negative pressure unit, thereby avoiding excessive energy consumption of the delivery pump due to excessive rapid liquid flow, and at the same time avoiding too slow drainage of the liquid from the patient's surgical site causing liquid accumulation at the patient's surgical site. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0039] Figure 1 A schematic diagram of the structure of an intelligent liquid continuous perfusion system for fluid laparoscopy provided in an embodiment of the present invention;

[0040] Figure 2 A schematic diagram of the structure of the perfusion device provided in an embodiment of the present invention;

[0041] Figure 3 A schematic diagram of the structure of a controller provided by an embodiment of the present invention;

[0042] Figure 4 A schematic diagram of the structure of a heating module provided in an embodiment of the present invention;

[0043] Figure 5 A schematic diagram of the structure of an intelligent liquid continuous perfusion system for fluid laparoscopy provided by another embodiment of the present invention;

[0044] Figure 6 A schematic structural diagram of another perspective of an intelligent liquid continuous perfusion system for fluid laparoscopy provided by another embodiment of the present invention;

[0045] Figure 7 A schematic diagram of the structure of a support rod provided by an embodiment of the present invention;

[0046] Figure 8 A schematic diagram of the structure of a second fluid bag provided in an embodiment of the present invention;

[0047] Fig. 9 A schematic structural diagram of a second fluid bag provided by an embodiment of the present invention from another perspective;

[0048] Fig.10A schematic diagram of the structure of a power module provided in an embodiment of the present invention;

[0049] Fig.11 A schematic diagram of the structure of a liquid storage unit provided by an embodiment of the present invention;

[0050] Fig.12 This is a schematic diagram of the structure of a liquid discharge station provided in an embodiment of the present invention.

[0051] in:

[0052] 100-car body, 110-support rod, 111-base, 112-detector, 113-fixing seat, 114-sensor, 115-hanging rack, 116-supporting seat, 1171-fixing sleeve, 1172-supporting disc, 118-connecting seat, 119-lifting shell, 120-first liquid bag;

[0053] 200-injection device, 211-control panel, 212-display, 221-delivery pump, 222-driver, 223-first pipe clamp, 224-second pipe clamp, 2311-plate structure, 2312-installation slot, 2313-fixed frame, 232-second liquid bag, 2321-inlet, 2322-outlet, 2323-built-in flow channel, 233-detection unit, 2341-power module, 2342-heating module, 2343-heating module, 235-converter, 236-first temperature control meter, 237-second temperature control meter, 238-first relay, 239-second relay, 240-partition, 250-cooling fan;

[0054] 300-liquid recovery device, 311-liquid tank, 312-liquid level sensor;

[0055] 400 - drainage station, 410 - docking part, 420 - magnetic suction part, 430 - guide part, 440 - anti-collision part, 450 - housing. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0058] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms "top", "bottom", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the position or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0059] The purpose of the present invention is to provide an intelligent liquid continuous perfusion system and method for fluid laparoscopy, which can pressurize the liquid to adjust the pressure of the liquid, heat the liquid and maintain the temperature of the heated liquid within a certain range, and adjust the speed at which the liquid storage unit collects the liquid to avoid excessive energy consumption caused by excessive liquid flow, and avoid liquid accumulation caused by excessively slow liquid flow.

[0060] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 To achieve the above objectives, the present invention provides an intelligent liquid continuous perfusion system for fluid laparoscopy, comprising a vehicle body 100 , a perfusion device 200 and a liquid recovery device 300 .

[0061] The vehicle body 100 may be provided with a pulley at the bottom of the vehicle body 100 so as to facilitate the vehicle body 100 to move to a designated position for subsequent flushing process.

[0062] The perfusion device 200 is arranged on the vehicle body 100, and includes a controller, a conveying component connected to the controller, and a detection unit 233. The conveying component includes a first liquid bag 120 and a conveying pump 221 that conveys the liquid in the first liquid bag through a conveying pipeline. The detection unit 233 can obtain the liquid pressure in the conveying pipeline, and the controller can obtain information from the detection unit 233 and control the operation of the conveying pump 221.

[0063] The liquid recovery device 300 is disposed on the vehicle body 100 and includes a liquid storage unit and a negative pressure unit. The negative pressure unit can generate negative pressure to drain the liquid from the surgical site of the patient to the liquid storage unit for collection.

[0064] The liquid in the first liquid bag 120 is transported along the delivery pipeline at a set flow rate through the delivery pump 221, and the negative pressure unit is adjusted to drain the liquid from the patient's surgical site to the liquid storage unit for collection. The liquid storage unit is then centrally processed. With this arrangement, the liquid flow in the delivery pipeline can be adjusted by the delivery pump 221, and the speed at which the liquid is collected by the liquid storage unit can be adjusted by the negative pressure unit, thereby avoiding excessive energy consumption of the delivery pump 221 due to excessive rapid liquid flow, and at the same time avoiding too slow drainage of the liquid from the patient's surgical site causing liquid accumulation at the patient's surgical site.

[0065] See also Figure 4The perfusion device 200 further includes a heating module 2342, the heating module 2342 includes two plate structures 2311 spaced apart to form a heating chamber, and a heating unit for heating at least one of the plate structures;

[0066] In this embodiment, the delivery pipeline between the first liquid bag 120 and the delivery pump 221 includes a second liquid bag 232 installed in the heating chamber, and an installation groove 2312 for installing the detection unit 233 is provided between the two plate structures 2311. The delivery pump 221 can drive the liquid in the first liquid bag 120 to be delivered to the second liquid bag 232 to apply pressure to the two plate structures 2311, and the controller can obtain and control the temperature of the heating unit and the pressure of the second liquid bag 232.

[0067] Among them, a partition 240 can be used to separate the heating module 2342 from other components, and a modular setting can be adopted to avoid the influence of heat on other components. The delivery pump 221 can adopt a peristaltic pump, and the delivery assembly also includes a first pipe clamp 223 and a second pipe clamp 224 to clamp the delivery pipeline to facilitate the layout of the delivery pipeline.

[0068] One of the plate structures 2311 can be fixed by a fixing frame 2313, and the other plate structure 2311 is configured to be movable relative to the plate structure 2311. The liquid is delivered to the second liquid bag 232 by the delivery pump 221. The second liquid bag 232 applies pressure to a group of plate structures 2311 to stretch the two plate structures 2311 apart. The pressure of the liquid in the second liquid bag 232 is calculated through the relationship between pressure and intensity. The detection unit 233 can use a pressure sensor to detect the pressure between the two plate structures 2311. At the same time, a converter 235 can be added to convert the analog output into a digital quantity when the detection unit 233 is an analog output.

[0069] See also Figure 3 and Fig.10 The heating unit includes a power module 2341, a heating module 2342 connected to the power module 2341, and a heat dissipation module 2343 located on the side of the heating module 2342 away from the plate structure 2311. The heating module 2342 is arranged on the side of the plate structure 2311 away from the heating chamber; the plate structure 2311 is connected to a temperature control meter to detect the temperature of the plate structure 2311; a relay is provided between the heating module 2342 and the power module 2341 for controlling the on and off of the current.

[0070] It should be noted that the heating module 2342 and the heat dissipation module 2343 can be set as two sets. By using the two heating modules 2342 located on the opposite side of the two plate structures 2311 to heat the plate structures 2311 respectively, the liquid can be heated and the temperature of the heated liquid can be maintained within a certain range. The two heat dissipation modules 2343 are located on the opposite side of the two heating modules 2342 to transfer excess heat.

[0071] Among them, the heating unit adopts a DC heating mode and is equipped with a switching power supply. In other embodiments, AC power supply can be used as long as the above-mentioned purpose can be achieved. The heating module 2342 is specifically a number of adjacently arranged heating plates. The heating plates conduct heat to the plate structure 2311 to heat the liquid in the heating chamber. The heat dissipation module 2343 can also adopt a heat dissipation plate, and a heat dissipation fan 250, an air-cooled heat dissipation component, a water-cooled heat dissipation component, etc. can also be added to conduct away excess heat.

[0072] Both the temperature control meter and the relay can be set as two sets, one plate structure 2311 is connected to the first temperature control meter 236, and the other plate structure 2311 is connected to the second temperature control meter 237 to detect the temperatures of the two plate structures 2311; a first relay 238 is provided between a heating module 2342 and a power module 2341, and a second relay 239 is provided between the other heating module 2342 and the power module 2341 to control the on and off of the current.

[0073] Two heating modules 2342, two heat dissipation modules 2343 and two plate structures 2311 are provided, which can evenly heat the liquid in the second liquid bag 232. At the same time, the independent operation of the corresponding heating modules 2342 and heat dissipation modules 2343 can be controlled according to the temperature of the plate structure 2311, which has more flexibility.

[0074] In this embodiment, the delivery component further includes a driver 222 connected to the delivery pump 221 , and the driver 222 can drive the delivery pump 221 to operate; the controller includes a control panel 211 and a display 212 .

[0075] The control board 211 is a control board 211 with an MCU, and a PLC control board or the like may also be used. The control board 211 is connected to the converter 235, the driver 222, the first temperature control meter 236, the second temperature control meter 237, the first relay 238, and the second relay 239, so as to combine with the heating module 2342 to control the heating of the heating unit, and combine with the detection unit 233 to control the flow or pressure.

[0076] The display 212 is connected to the control panel 211 and is used for data display and data input. The display 212 is used to display information, menus, interfaces, etc. such as infusion flow, infusion pressure, perfusion fluid temperature, warning information, system information, etc. The input control panel 211 is used to control the infusion flow, which can be a physical button or a touch screen module integrated in the above-mentioned display 212.

[0077] The device can adjust the pressure through the feedback of the detection unit 233. There is no need to adjust the pressure by adjusting the height of the flushing liquid bag. The pressure of the output liquid can be adjusted by adjusting the parameters on the touch screen, and the liquid can be heated.

[0078] See also Figure 8 and Fig. 9 The second liquid bag 232 includes an inlet 2321 for liquid inflow, an outlet 2322 for liquid outflow, and a built-in flow channel 2323 connected to the inlet 2321 and the outlet 2322; the built-in flow channel 2323 is provided with a plurality of spaced-apart isolation strips to increase the liquid flow path.

[0079] The liquid in the second liquid bag 232 is extended in the heating unit through a specially designed built-in flow channel 2323 to instantly heat the perfusion liquid without preheating, thereby greatly reducing the cost of consumables.

[0080] See also Figure 7 In some embodiments, a support rod 110 for hanging a first liquid bag 120 is further included, and the support rod 110 is installed on the vehicle body 100; the support rod 110 is a telescopic rod, which is connected to the connecting seat 118 of the vehicle body 100 through a connecting seat 118, and the support rod 110 includes a lifting shell 119, and a support seat 116 is provided at the top of the support rod 110, and a base 111 is provided on the support seat 116, and a detector 112 for detecting the height of the support rod 110 is provided at the bottom of the base 111, and a fixed seat 113 and a sensor 114 are also provided on the base 111, and a hanger 115 for hanging the first liquid bag 120 is provided on the fixed seat 113, and the sensor 114 is used to detect the pressure of the fixed seat 113, wherein a fixed sleeve 1171 can also be sleeved on the outer periphery of the lifting shell 119, and a support disc 1172 for winding an infusion tube is provided on the fixed sleeve 1171 to lay the infusion tube.

[0081] By connecting the sensor 114 with the control panel 211 and the display 212, the remaining amount of liquid in the first liquid bag 120 and the liquid change difference can be obtained in real time, so as to accurately correct the set flow rate and the flow rate of collected liquid according to the obtained real-time liquid volume reduction.

[0082] See also Fig.11It can be understood that the liquid storage unit includes a liquid tank 311 and a liquid level sensor 312. The liquid tank 311 has a containing space for containing liquid; the liquid level sensor 312 is arranged in the liquid tank 311 to detect the height of the liquid surface.

[0083] The liquid level sensor 312 is used to measure the volume of the liquid in the liquid tank 311. The liquid tank 311 is a reusable liquid tank 311, and the liquid recovered in the liquid tank 311 can be discharged through a dedicated liquid discharge component, and the liquid tank 311 can be cleaned through a dedicated cleaning unit.

[0084] In this embodiment, the negative pressure unit includes a negative pressure pipeline, a negative pressure pump and a control module. The liquid in the surgical site of the patient flows through the negative pressure pipeline to the liquid tank 311; the negative pressure pump is connected to the liquid tank 311, and is connected to the negative pressure pipeline through the air path of the liquid tank 311, so that the negative pressure pipeline is in a negative pressure state; the control module is used to control the operation of the negative pressure pump and the negative pressure of the negative pressure pipeline.

[0085] The negative pressure pump generates negative pressure, and the control module controls the size of the negative pressure. The control module can use an independent display device for data display and data input, or the control module can be connected to the above-mentioned display 212 to facilitate the infusion linkage of the negative pressure pump and the delivery pump 221. When the infusion stops, the negative pressure pump stops running; when the infusion flow rate is small, the negative pressure provided by the negative pressure pump decreases; when the infusion flow rate is large, the negative pressure provided by the negative pressure pump also increases accordingly.

[0086] See also Fig.12 In the present embodiment, the intelligent liquid continuous perfusion system for fluid laparoscopy further comprises a liquid drainage station 400, which comprises a housing 450, a docking portion 410 capable of docking with the liquid recovery device 300, a magnetic suction portion 420 for magnetically suctioning the liquid recovery device 300, two guide portions 430 arranged on both sides of the docking portion 410, an anti-collision portion 440 arranged on the opposite sides of the two guide portions 430, a liquid drainage component for extracting liquid from the liquid tank 311, and a cleaning unit for cleaning the liquid tank 311.

[0087] In addition, it also includes a method for continuous intelligent liquid perfusion for fluid laparoscopy, which is suitable for the above-mentioned intelligent liquid continuous perfusion system for fluid laparoscopy, including obtaining the set flow and set temperature of the perfusion device 200; controlling the delivery pump 221 to deliver the liquid in the first liquid bag 120 to the second liquid bag 232 along the delivery pipeline at the set flow; controlling the heating module 2342 to heat the liquid in the second liquid bag 232 to the set temperature; calculating or querying the flow rate of liquid collected by the liquid storage unit when the negative pressure unit provides different negative pressure values; controlling the negative pressure unit to adjust the negative pressure value so that the flow rate of the collected liquid matches the set flow rate.

[0088] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0089] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0090] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. An intelligent liquid continuous perfusion system for fluid laparoscopy, characterized in that: include: Vehicle body; a perfusion device, arranged on the vehicle body, comprising a controller, a delivery component connected to the controller, and a detection unit, wherein the delivery component comprises a first liquid bag and a delivery pump for delivering liquid in the first liquid bag through a delivery pipeline, the detection unit is capable of obtaining liquid pressure in the delivery pipeline, and the controller is capable of obtaining information from the detection unit and controlling the operation of the delivery pump; The liquid recovery device is arranged on the vehicle body, and comprises a liquid storage unit and a negative pressure unit. The negative pressure unit can generate negative pressure for draining the liquid in the surgical site of the patient to the liquid storage unit for collection.

2. The intelligent liquid continuous perfusion system for fluid laparoscopy according to claim 1, characterized in that: The pouring device further comprises a heating module, wherein the heating module comprises two plate structures spaced apart to form a heating chamber, and a heating unit for heating at least one of the plate structures; The delivery pipeline located between the first liquid bag and the delivery pump includes a second liquid bag installed in the heating chamber, and a mounting groove for installing the detection unit is provided between the two plate structures. The delivery pump can drive the liquid in the first liquid bag to be delivered to the second liquid bag to apply pressure to the two plate structures.

3. The intelligent liquid continuous perfusion system for fluid laparoscopy according to claim 2, characterized in that: The heating unit comprises a power module, a heating module connected to the power module, and a heat dissipation module located on a side of the heating module away from the plate structure, wherein the heating module is arranged on a side of the plate structure away from the heating chamber; The plate structure is connected to a temperature control meter to detect the temperature of the plate structure; A relay is provided between the heating module and the power supply module for controlling the on and off of the current.

4. The intelligent liquid continuous perfusion system for fluid laparoscopy according to claim 3, characterized in that: The delivery assembly further comprises a driver connected to the delivery pump, and the driver can drive the delivery pump to operate; The controller comprises: A control board connected to the driver, the temperature control meter, and the relay; A display is connected to the control panel and is used for data display and data input.

5. The intelligent liquid continuous perfusion system for fluid laparoscopy according to any one of claims 1 to 4, characterized in that: The second fluid bag comprises an inlet for liquid inflow, an outlet for liquid outflow, and a built-in flow channel connected to the inlet and the outlet; The built-in flow channel is provided with a plurality of spaced-apart isolation strips.

6. The intelligent liquid continuous perfusion system for fluid laparoscopy according to claim 5, characterized in that: It also includes a support rod for hanging the first fluid bag, wherein the support rod is mounted on the vehicle body; The support rod is a telescopic rod, and a base is provided at the top of the support rod, a detector for detecting the height of the support rod is provided at the bottom of the base, a fixing seat and a sensor are also provided on the base, a hanger for hanging the first liquid bag is provided on the fixing seat, and the sensor is used to detect the pressure of the fixing seat.

7. The intelligent liquid continuous perfusion system for fluid laparoscopy according to claim 5, characterized in that: The liquid storage unit comprises: A liquid tank having a receiving space for receiving liquid; The liquid level sensor is arranged in the liquid tank and is used to detect the height of the liquid surface.

8. The intelligent liquid continuous perfusion system for fluid laparoscopy according to claim 7, characterized in that: The negative pressure unit comprises: A negative pressure pipeline for the fluid in the surgical site of the patient to flow to the fluid tank; A negative pressure pump is connected to the liquid tank and is connected to the negative pressure pipeline through the gas path of the liquid tank, so that the negative pressure pipeline is in a negative pressure state; The control module is used to control the operation of the negative pressure pump and the negative pressure of the negative pressure pipeline.

9. The intelligent liquid continuous perfusion system for fluid laparoscopy according to claim 7, characterized in that: It also includes a drainage station, which includes a docking portion that can be docked with the liquid recovery device, a magnetic attraction portion for magnetically attracting the liquid recovery device, two guide portions arranged on both sides of the docking portion, an anti-collision portion arranged on the opposite side of the two guide portions, a drainage component for extracting liquid from the liquid tank, and a cleaning unit for cleaning the liquid tank.

10. The intelligent liquid continuous perfusion system for fluid laparoscopy according to claim 2, characterized in that: The detection unit is a pressure sensor for detecting the pressure between the two plate structures.

11. A method for continuous intelligent liquid perfusion for fluid laparoscopy, applicable to the continuous intelligent liquid perfusion system for fluid laparoscopy as claimed in any one of claims 1 to 10, characterized in that: include: Obtaining a set flow rate of the perfusion device; Controlling the delivery pump to deliver the liquid in the first fluid bag along the delivery pipeline at the set flow rate; Calculating or querying the flow rate of the liquid collected by the liquid storage unit when the negative pressure unit provides different negative pressure values; The negative pressure unit is controlled to adjust the negative pressure value so that the flow rate of the collected liquid matches the set flow rate.