Intelligent monitoring system for uterine distention liquid

By designing an intelligent monitoring system for distending fluid, the system can monitor the inflow and outflow of distending fluid in real time, calculate the perfusion-recovery difference and trigger an alarm, thus solving the problem of insufficient monitoring of distending fluid during hysteroscopic surgery and improving surgical safety.

CN121489658APending Publication Date: 2026-02-10SHENZHEN LONGHUA DISTRICT PEOPLES HOSPITAL
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Patent Information

Application Number
CN202610016780.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-07
Publication Date
2026-02-10

AI Technical Summary

Technical Problem

Current hysteroscopic surgeries lack specialized equipment for monitoring the inflow and outflow of distending fluid, making it impossible to monitor the difference between the infusion and recovery of distending fluid in real time. This results in the inability to effectively prevent the risk of distending fluid absorption syndrome.

Method used

A smart monitoring system for distending fluid was designed, including a main control panel, first and second electronic scales, and an alarm. The system monitors the inflow and outflow of distending fluid in real time through the electronic scales, calculates the perfusion-recovery difference using an algorithm, and sets alarm thresholds for real-time alerts.

Benefits of technology

It enables real-time dynamic monitoring of distension fluid, timely alarms, reduces the risk of distension fluid absorption syndrome, and ensures surgical safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to an intelligent monitoring system for uterine distention liquid, which solves the problems that the existing hysteroscopic surgery is lack of special uterine distention liquid input and output monitoring equipment and cannot monitor the difference value of the input and output of the uterine distention liquid in real time. Comprising a base, a host control panel, a first electronic scale, a second electronic scale and an alarm. When in use, bagged uterine distention liquid is positioned on the uterine distention liquid suspension device, the first electronic scale transmits detected data of the uterine distention liquid to the host control panel to obtain an initial amount W1, the weight W2 of the uterine distention liquid bag is measured in time during operation, the W1 is subtracted from the W2 to obtain an outflow amount W3 of the uterine distention liquid in time, and the second electronic scale measures the weight W4 of the recycled uterine distention liquid in time. An algorithm that W3 minus W4 is equal to the loss amount of the uterine distention liquid is the uterine distention liquid perfusion reduction and recovery difference value W5, the host control panel can dynamically record and store the loss amount, the W5 can be dynamically and highlighted on the host control panel, an alarm threshold value aiming at the W5 can be set on the host control panel, and timely alarm reminding is achieved.
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Description

Technical Field

[0001] This invention relates to the field of medical devices, specifically to an intelligent monitoring system for uterine distension fluid. Background Technology

[0002] Hysteroscopy is widely used in clinical practice. Clinicians use a slender instrument equipped with a miniature camera to directly observe the inside of the uterus and cervical canal, enabling both examination and treatment of related diseases. Since the uterus is a potential cavity with its anterior and posterior walls tightly fitted together, injecting fluid (distension fluid) expands the uterine cavity walls, creating a clear and spacious field of view and operating space. The distension fluid fills the uterine cavity while simultaneously ensuring uniform light transmission, providing bright, undistorted images. During the procedure, the continuously injected distension fluid also serves to flush, assist in hemostasis, and lower the temperature.

[0003] However, if the hysteroscopic surgery is too long, the intrauterine pressure is too high, or the removed tissue is too deep or too large, the distending fluid can be absorbed by the body through the open vascular sinuses. When the absorption reaches a certain threshold (usually considered to be greater than 1000ml), the body's circulatory system and kidneys cannot compensate in time, leading to a series of pathophysiological changes. This can result in serious and potentially life-threatening complications, such as distending fluid absorption syndrome. Distending fluid absorption syndrome is a process of "iatrogenic water intoxication." Its root cause lies in the large and rapid absorption of hypotonic distending fluid during surgery, directly leading to two core problems: first, acute heart failure and pulmonary edema due to excessive blood volume; and second, cerebral edema and neurological dysfunction due to dilutional hyponatremia.

[0004] Therefore, strict monitoring of the infusion-recovery difference of distension fluid during hysteroscopic surgery is crucial for preventing this syndrome. If excessive fluid absorption is detected (e.g., a difference greater than 1000-1500 ml), immediate emergency measures such as diuresis, correction of hyponatremia, and cessation of the procedure must be taken. Currently, a key clinical challenge lies in how to dynamically monitor the infusion-recovery difference of distension fluid in real time and provide intelligent alerts based on set thresholds. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that existing hysteroscopic surgeries lack specialized equipment for monitoring the inflow and outflow of distension fluid, and therefore cannot monitor the difference in inflow and outflow of distension fluid in real time.

[0006] The technical solution adopted to solve the technical problem proposed in this invention is as follows: The intelligent monitoring system for distended uterine fluid of this invention includes a base, a main control panel, a first electronic scale, a second electronic scale, and an alarm. The first electronic scale, the second electronic scale, and the alarm are respectively connected to the main control panel. A first column is provided on the base, the main control panel is located on the first column, the first electronic scale is located on the base, and a measuring bracket is provided on the measuring platform of the first electronic scale. A distended uterine fluid suspension device for measuring and fixing the distended uterine fluid is provided on the measuring bracket.

[0007] The technical solutions that further define the present invention include: The second electronic scale includes a second electronic scale base, a second column disposed on the second electronic scale base, and a second electronic scale control panel disposed on the column. The second electronic scale control panel is connected to the main control panel.

[0008] The second electronic scale control panel is detachably connected to the main control panel via the second electronic scale data cable.

[0009] A first wireless transmission module is connected to the control panel of the second electronic scale, and a first wireless receiving module is connected to the control panel of the host computer.

[0010] The second column is equipped with a panel mounting bracket, and the control panel of the second electronic scale is rotatably connected to the panel mounting bracket via a rotating shaft.

[0011] The second electronic scale is equipped with a first omnidirectional wheel at its bottom.

[0012] The base is equipped with a second omnidirectional wheel.

[0013] The measuring bracket is an inverted U-shaped frame, and the uterine distension fluid suspension device is a hook mounted on the U-shaped frame.

[0014] The measuring platform of the second electronic scale is equipped with a measuring tray and a liquid receiving bucket placed on the tray.

[0015] The host control panel is connected to a second wireless transmission module.

[0016] Through the above technical solution, the beneficial effects of the present invention are as follows: When using the intelligent monitoring system for distending fluid of the present invention, the bagged distending fluid is positioned on the distending fluid suspension device. The first electronic scale transmits the data of the detected distending fluid to the host control panel to obtain the initial amount W1. During the operation, the weight W2 of the distending fluid bag is measured in time. The algorithm W1 minus W2 equals the outflow amount W3 of the distending fluid at the time. The second electronic scale measures the weight W4 of the recovered distending fluid in time. The algorithm W3 minus W4 equals the loss amount of the distending fluid, which is the difference between the distending fluid irrigation and recovery W5. The host control panel can dynamically record and save W1, W2, W3, W4 and W5, and dynamically highlight W5 on the host control panel. An alarm threshold for W5 can be set on the host control panel to realize real-time alarm reminders. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an intelligent monitoring system for uterine distension fluid according to the present invention.

[0018] Figure 2 This is a schematic diagram of the circuit block structure of an intelligent monitoring system for uterine distension fluid according to the present invention.

[0019] The components include: base 1, first column 11, second caster wheel 12, main control panel 2, first electronic scale 3, second electronic scale 4, second electronic scale base 41, second column 42, second electronic scale control panel 43, panel mounting bracket 44, first caster wheel 45, measuring tray 46, alarm 5, measuring bracket 6, and uterine distension fluid suspension device 7. Detailed Implementation

[0020] The structure of the present invention will be further described below with reference to the accompanying drawings.

[0021] Reference Figure 1 and Figure 2A smart monitoring system for uterine distension fluid includes a base 1, a main control panel 2, a first electronic scale 3, a second electronic scale 4, and an alarm 5. The first electronic scale 3, the second electronic scale 4, and the alarm 5 are connected to the main control panel 2. A first column 11 is mounted on the base 1, and the main control panel is located on the first column 11. The first electronic scale 3 is located on the base 1. A measuring bracket 6 is mounted on the measuring platform of the first electronic scale 3, and a uterine distension fluid suspension device 7 is mounted on the measuring bracket 6 for fixing the uterine distension fluid during measurement. In this embodiment, the measuring bracket 6 is an inverted U-shaped frame, and the uterine distension fluid suspension device 7 is a hook mounted on the U-shaped frame. Multiple hooks can be installed on the crossbeam of the inverted U-shaped frame for suspending bagged or bottled uterine distension fluid. In this embodiment, the bottom of the base 1 is equipped with a second universal wheel 12 with a braking function for easy movement and fixation. The main control panel 2 integrates a display screen, control buttons, and a processor, used to display the real-time weight of the two electronic scales, the calculated fluid difference, set alarm thresholds, etc., and serves as the control core of the system. An alarm 5, which can be a buzzer or a warning light, is connected to the main control panel 2. In practice, the main control panel 2 is connected to a second wireless transmission module. Measurement data can be transmitted to the smart terminal product through the second wireless transmission module.

[0022] The second electronic scale 4 is used to measure fluids discharged during surgery. In this embodiment, the second electronic scale 4 includes a second electronic scale base 41, a second column 42 mounted on the second electronic scale base 41, and a second electronic scale control panel 43 mounted on the column. The second electronic scale control panel 43 is connected to the main control panel 2. In this embodiment, the bottom of the second electronic scale 4 is equipped with first casters 45 with brakes for easy movement and fixation. In this embodiment, the second column 42 is equipped with a panel mounting bracket 44, and the second electronic scale control panel 43 is rotatably connected to the panel mounting bracket 44 via a pivot, thus facilitating adjustment of the display viewing angle. In this embodiment, a first wireless transmission module is connected to the second electronic scale control panel 43, and a first wireless receiving module is connected to the main control panel 2. Data transmission between the second electronic scale and the main control panel is achieved through the wireless transmission module, such as via Bluetooth or a wireless network. In a specific implementation, the second electronic scale control panel 43 can also be detachably connected to the main control panel 2 via a second electronic scale data cable. In this embodiment, the measuring platform of the second electronic scale 4 is equipped with a measuring tray 46 and a liquid receiving bucket (not shown) mounted on the tray.

[0023] During the procedure, the machine base is moved to a suitable position in the operating room and secured. The distending fluid bag is hung on hook 7 of the first electronic scale 3. The second electronic scale 4 is moved to a suitable position at the rear or side of the operating table, and a collection container is placed on its tray to collect the discharged distending fluid. The power is turned on, and parameters such as patient information and alarm thresholds are set through the main control panel 2. The first electronic scale 3 transmits the detected distending fluid data to the main control panel 2 to obtain the initial volume W1. During the procedure, the weight W2 of the distending fluid bag is measured in real time. The algorithm W1 minus W2 equals the timely outflow volume W3 of the distending fluid. The second electronic scale measures the weight W4 of the recovered distending fluid in real time. The algorithm W3 minus W4 equals the distending fluid loss, which is the difference between the distending fluid irrigation and recovery, W5. The main control panel 2 can dynamically record and save W1, W2, W3, W4, and W5, and dynamically highlight W5 on the main control panel. An alarm threshold for W5 can be set on the main control panel. If W5 remains positive and continues to increase, it indicates that the fluid may be absorbed by the patient. Once the difference exceeds the preset positive safety threshold (or negative threshold, indicating that the discharge is more abnormal than the infusion), the main control panel 2 immediately activates the alarm 5, issuing an audible and visual alarm. Simultaneously, all monitoring data can be transmitted to an external display or recording device via the second wireless transmission module.

[0024] Although specific embodiments of the present invention have been described in detail with reference to the accompanying drawings, this should not be construed as limiting the scope of protection of the present invention. Various modifications and variations that can be made by those skilled in the art without inventive effort within the scope described in the claims still fall within the scope of protection of the present invention.

Claims

1. An intelligent monitoring system, characterized in that: The monitoring system includes a base, a main control panel, a first electronic scale, a second electronic scale, and an alarm. The first electronic scale, the second electronic scale, and the alarm are respectively connected to the main control panel. The base is provided with a first column, the main control panel is located on the first column, the first electronic scale is located on the base, and the measuring platform of the first electronic scale is provided with a measuring bracket. The measuring bracket is provided with a uterine distension fluid suspension device for measuring and fixing the uterine distension fluid.

2. The intelligent monitoring system for distending fluid as described in claim 1, characterized in that: The second electronic scale includes a second electronic scale base, a second column disposed on the second electronic scale base, and a second electronic scale control panel disposed on the column. The second electronic scale control panel is connected to the main control panel.

3. The intelligent monitoring system for distending fluid as described in claim 2, characterized in that: The second electronic scale control panel is detachably connected to the main control panel via the second electronic scale data cable.

4. The intelligent monitoring system for distending fluid as described in claim 2, characterized in that: A first wireless transmission module is connected to the control panel of the second electronic scale, and a first wireless receiving module is connected to the control panel of the host computer.

5. The intelligent monitoring system for distending fluid as described in claim 2, characterized in that: The second column is equipped with a panel mounting bracket, and the control panel of the second electronic scale is rotatably connected to the panel mounting bracket via a rotating shaft.

6. The intelligent monitoring system for distending fluid as described in claim 1, characterized in that: The second electronic scale is equipped with a first omnidirectional wheel at its bottom.

7. The intelligent monitoring system for distending fluid as described in claim 1, characterized in that: The base is equipped with a second universal wheel.

8. The intelligent monitoring system for distending fluid as described in claim 1, characterized in that: The measuring bracket is an inverted U-shaped frame, and the uterine distension fluid suspension device is a hook mounted on the U-shaped frame.

9. The intelligent monitoring system for distending fluid as described in claim 1, characterized in that: The measuring platform of the second electronic scale is equipped with a measuring tray and a liquid receiving bucket placed on the tray.

10. The intelligent monitoring system for distending fluid as described in claim 1, characterized in that: The host control panel is connected to a second wireless transmission module.