Uterine distention instrument convenient for liquid management and liquid management method

Abstract

The invention relates to the field of medical equipment, and discloses a uterus distention instrument convenient for liquid management and a liquid management method.The uterus distention instrument comprises a main control system MCU, a liquid pump unit and a monitoring unit; the liquid pump unit is electrically connected with the main control system MCU, and is used for conveying the uterine distention liquid in the uterine distention liquid container into the uterine cavity of a patient and conveying waste liquid generated in an operation into the waste liquid collecting container; the monitoring unit is electrically connected with the main control system MCU and used for collecting weight data of the uterine distention liquid container and the waste liquid collecting container in real time and sending the weight data to the main control system MCU in real time, and the main control system MCU calculates the input and output amount of the uterine distention liquid in real time according to the weight data of the uterine distention liquid container and the waste liquid collecting container. According to the application, the access amount of the uterine distention liquid can be monitored in real time, the risk of hysteroscopic surgery is reduced, and the life safety of a patient is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a uterine distension device and a liquid management method for facilitating liquid management. Background Art

[0002] Hysteroscopic surgery is one of the common surgical procedures in gynecological surgery. During hysteroscopic surgery, it is usually necessary to use distending fluid (usually saline) to fill the patient's uterine cavity, so as to expose a larger field of view and better cooperate with electronic mirrors, optical mirrors and other equipment to facilitate medical staff to find the lesions. In addition, when removing the lesion, it is also necessary to use distending fluid to flush the lesion site. Although distending fluid can better assist surgical operations, if the patient absorbs too much distending fluid, there may be a risk of acute water intoxication and other complications. Therefore, when performing hysteroscopic surgery, the amount of distending fluid must be monitored so that medical staff can know in time whether the patient absorbs too much distending fluid to ensure the patient's life safety.

[0003] At present, the method of manual calculation is usually used to calculate the inflow and outflow of uterine distension fluid. Specifically, the uterine distension fluid is packaged in a transparent bag with scales, and the uterine distension fluid in the bag is used for input, and the reduction of the liquid in the bag is the input amount of the uterine distension fluid; then a waste liquid collection container with scales is placed separately, and the amount of waste liquid in the waste liquid collection container is the output amount of the uterine distension fluid; finally, the inflow and outflow of the uterine distension fluid is obtained by subtracting the output amount from the input amount.

[0004] The manual statistical method is very cumbersome and labor-intensive, and there is also a risk of statistical errors, which is not conducive to the progress of the operation and leads to increased surgical risks. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a uterine distension instrument and a liquid management method that are convenient for liquid management, so as to solve the problem pointed out in the background technology that the calculation of the amount of uterine distension fluid in and out by manual statistics is relatively labor-intensive and there is also a risk of statistical errors, which is not conducive to the progress of the operation and leads to increased surgical risks.

[0006] The present invention solves the above technical problems by the following technical means:

[0007] In a first aspect, a uterine distension device for facilitating fluid management is provided, comprising:

[0008] Main control system MCU;

[0009] A liquid pump unit, the liquid pump unit is electrically connected to the main control system MCU, and is used to deliver the uterine distension fluid in the uterine distension fluid container to the patient's uterine cavity, and is used to deliver the waste fluid generated by the operation to the waste fluid collection container; and

[0010] A monitoring unit, wherein the monitoring unit is electrically connected to the main control system MCU, and is used for collecting weight data of the uterine distension fluid container and the waste fluid collection container in real time, and sending the weight data to the main control system MCU in real time. The main control system MCU calculates the inflow and outflow of the uterine distension fluid in real time based on the weight data of the uterine distension fluid container and the waste fluid collection container.

[0011] In combination with the first aspect, further, the monitoring unit includes a first weight sensor and a second weight sensor;

[0012] The first weight sensor is used to collect weight data of the uterine distension fluid container;

[0013] The second weight sensor is used to collect weight data of the waste liquid collection container.

[0014] In combination with the first aspect, further, the uterine distension instrument also includes an image acquisition device electrically connected to the main control system MCU, the image acquisition device is used to collect image data in the uterine cavity, and the image acquisition device can input uterine distension fluid and output waste fluid;

[0015] The liquid pump unit includes an infusion pump and a first suction pump;

[0016] The liquid inlet end of the perfusion pump is connected to the uterine distension fluid container through a hose, and the liquid outlet end of the perfusion pump is connected to the liquid inlet end of the image acquisition device through a hose;

[0017] The liquid inlet end of the first suction pump is connected to the liquid outlet end of the image acquisition device through a hose, and the liquid outlet end of the first suction pump is connected to the waste liquid collection container through a hose.

[0018] In combination with the first aspect, further, the uterine expansion instrument also includes a planing device electrically connected to the main control system MCU, the planing device is used to remove the lesion, and the planing device can output waste liquid;

[0019] The liquid pump unit also includes a second suction pump, the liquid inlet end of the second suction pump is connected to the liquid outlet end of the planing device through a hose, and the liquid outlet end of the second suction pump is connected to the waste liquid collection container through a hose.

[0020] In combination with the first aspect, further, the liquid pump unit also includes a third suction pump, the liquid inlet end of the third suction pump is connected to the overflow liquid collection container through a hose, and the liquid outlet end of the third suction pump is connected to the waste liquid collection container through a hose.

[0021] In combination with the first aspect, further, the uterine expansion device also includes a video processing system and an image processing system, and the video processing system and the image processing system are both electrically connected to the main control system MCU;

[0022] The video processing system is used to execute the video recording function of the image acquisition device;

[0023] The image processing system is used to convert the signal data collected by the image collection device into image data.

[0024] In combination with the first aspect, further, the image processing system is connected to a 2K / 4K LCD display, and the 2K / 4K LCD display is used to display the image data acquired by the image acquisition device in real time.

[0025] In combination with the first aspect, further, the uterine distension device further includes a foot controller and a touch screen display, and the foot controller and the touch screen display are both electrically connected to the main control system MCU;

[0026] The foot controller is used to control the image acquisition device, the planing device and the liquid pump unit;

[0027] The touch display screen is used to display and adjust the parameter status of the uterine expansion instrument.

[0028] In combination with the first aspect, further, the uterine distension device also includes a cooling fan electrically connected to the main control system MCU, and the cooling fan is used for heat dissipation and cooling of the uterine distension device.

[0029] In a second aspect, a liquid management method is provided, the method comprising:

[0030] Obtain the weight data of the uterine distension fluid container and the waste fluid collection container in real time;

[0031] Calculating the reduction in the amount of uterine distension fluid in the uterine distension fluid container according to the weight data of the uterine distension fluid container;

[0032] Calculating the amount of waste liquid in the waste liquid collection container according to the weight data of the waste liquid collection container;

[0033] The value obtained by subtracting the amount of waste fluid in the waste fluid collection container from the reduced amount of uterine distension fluid in the uterine distension fluid container is the input and output of the uterine distension fluid.

[0034] In combination with the second aspect, further, the amount of waste liquid in the waste liquid collection container includes: waste liquid output by the image acquisition device and the first suction pump, waste liquid output by the planing device and the second suction pump, and waste liquid output by the third suction pump.

[0035] Beneficial effects of this application:

[0036] 1. Through the technical solution of the present application, medical staff can monitor the amount of distension fluid entering, the amount of waste fluid discharged, and the amount of distension fluid entering and exiting in real time during the operation, so that medical staff can know in time whether the patient absorbs too much distension fluid, thereby ensuring the patient's life safety; at the same time, medical staff do not need to perform manual calculations, which can save manpower and reduce the risk of statistical errors.

[0037] 2. By setting up the structures such as the perfusion pump, the first suction pump, the second suction pump, the third suction pump and the overflow liquid collection container, the waste liquid generated during the operation can be managed uniformly, so that the calculated inflow and outflow of uterine distension fluid is more accurate, further reducing the risk of the operation and ensuring the patient's life safety.

[0038] 3. By setting up a 2K / 4K LCD screen, medical staff can observe the situation in the patient's uterine cavity more intuitively during the operation and perform the operation better.

[0039] 4. By setting up a foot controller, it is convenient for medical staff to control the operation with their feet.

[0040] 5. By setting up a cooling fan, the entire uterine distension device can be better cooled and cooled, so that the uterine distension device can operate normally.

[0041] 6. By setting up a 24V switching power supply and a 12V switching power supply, the uterine distending instrument can be better powered to ensure the normal operation of the uterine distending instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a system block diagram of the uterine expansion instrument in an embodiment of the present application;

[0043] Figure 2 It is a schematic diagram of the structure of the uterine expansion instrument in the embodiment of the present application;

[0044] Figure 3 is a schematic diagram of the operation of the liquid pump unit in an embodiment of the present application;

[0045] Figure 4 is a flow chart of the liquid management method in an embodiment of the present application;

[0046] Among them, 1. Main control system MCU; 2. Uterine distention fluid container; 3. Waste liquid collection container; 4. First weight sensor; 5. Second weight sensor; 6. Electronic mirror; 7. Optical mirror; 8. Infusion pump; 9. First suction pump; 10. Planing equipment; 11. Third suction pump; 12. Overflow liquid collection container; 13. Second suction pump; 14. Video processing system; 15. Image processing system; 16. LED cold light source drive system; 17. LED cold light source; 18. 2K / 4K LCD display; 19. USB interface; 21. Foot controller; 22. Touch display; 23. 24V switching power supply; 24. 12V switching power supply; 25. Cooling fan. DETAILED DESCRIPTION

[0047] 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.

[0048] Embodiment 1

[0049] like Figure 1-Figure 3 As shown, the embodiment of the present application provides a distending device for liquid management, including a main control system MCU1, a liquid pump unit and a monitoring unit. The structural components described in this embodiment are all installed on the main unit of the distending device, and will not be described in detail later.

[0050] The liquid pump unit is electrically connected to the main control system MCU1, and is used to deliver the uterine distension fluid in the uterine distension fluid container 2 to the patient's uterine cavity, and to deliver the waste fluid generated by the operation to the waste fluid collection container 3. It should be noted that the uterine distension fluid container 2 and the waste fluid collection container 3 are both structures used in conjunction with the uterine distension instrument. The uterine distension fluid container 2 is used to hold the uterine distension fluid, and the waste fluid collection container 3 is used to hold the waste fluid generated by the operation. Both the uterine distension fluid container 2 and the waste fluid collection container 3 can be made of plastic bags commonly used in clinical practice, which are light in weight and can be directly hung on the uterine distension instrument.

[0051] The monitoring unit is electrically connected to the main control system MCU1, and is used to collect the weight data of the uterine distension fluid container 2 and the waste fluid collection container 3 in real time, and send the weight data to the main control system MCU1 in real time. The main control system MCU1 then calculates the intake and output of the uterine distension fluid in real time based on the weight data of the uterine distension fluid container 2 and the waste fluid collection container 3.

[0052] By adopting the above-mentioned technical solution, medical staff can monitor the amount of uterine distension fluid entering, the amount of waste fluid discharged, and the amount of uterine distension fluid entering and exiting in real time during the operation, so that medical staff can know in time whether the patient absorbs too much uterine distension fluid, thereby ensuring the patient's life safety; at the same time, medical staff do not need to perform manual calculations, which can save manpower and reduce the risk of statistical errors.

[0053] In this embodiment, the method for the main control system MCU1 to calculate the inflow and outflow of the uterine distension fluid includes: first, according to the weight data of the uterine distension fluid container 2, the reduction of the uterine distension fluid in the uterine distension fluid container 2 is calculated; then, according to the weight data of the waste liquid collection container 3, the amount of waste liquid in the waste liquid collection container 3 is calculated; then, the value obtained by subtracting the amount of waste liquid in the waste liquid collection container 3 from the reduction of the uterine distension fluid in the uterine distension fluid container 2 is the inflow and outflow of the uterine distension fluid.

[0054] By adopting the above calculation method, the amount of uterine distension fluid in and out can be calculated, so that medical staff can know in time whether the patient absorbs too much uterine distension fluid.

[0055] In addition, the units of the reduction amount and waste amount of the distending fluid mentioned in the above method can be grams or milliliters, and the units of the final calculated input and output are determined according to the units of the reduction amount and the waste amount. If the unit is grams, it can be calculated directly according to the weight data collected by the monitoring unit. If the unit is milliliters, it is necessary to convert it according to the collected weight data. The specific conversion algorithm is the existing technology and will not be described in detail here.

[0056] In another embodiment, the uterine distension instrument may further include an alarm mechanism, which may be a buzzer, a vibrator, etc. The alarm mechanism is electrically connected to the main control system MCU1. During the operation, when the amount of uterine distension fluid in and out exceeds the threshold amount and the duration exceeds the preset time, the alarm mechanism sounds an alarm to remind medical staff to know the current situation in time.

[0057] It should be noted that the above threshold value and preset time are set according to the specific conditions of the uterine distension device and the uterine distension fluid used, and are not specifically limited in this embodiment.

[0058] In this embodiment, the monitoring unit includes a first weight sensor 4 and a second weight sensor 5 . The first weight sensor 4 is used to collect weight data of the uterine distension fluid container 2 , and the second weight sensor 5 is used to collect weight data of the waste fluid collection container 3 .

[0059] In this embodiment, the uterine distension instrument further includes an image acquisition device electrically connected to the main control system MCU1, and the image acquisition device is used to acquire image data in the uterine cavity. The image acquisition device supporting the uterine distension instrument in this embodiment is mainly an electronic mirror 6 or an optical mirror 7. In addition, the image acquisition device has a channel for inputting distension fluid and a channel for outputting waste fluid, that is, the handles of the electronic mirror 6 and the optical mirror 7 have a channel for inputting distension fluid and a channel for outputting waste fluid.

[0060] In order to cooperate with the operation of the image acquisition device, the liquid pump unit includes an infusion pump 8 and a first suction pump 9. The liquid inlet end of the infusion pump 8 is connected to the uterine distension fluid container 2 through a hose, and the liquid outlet end of the infusion pump 8 is connected to the liquid inlet end of the image acquisition device through a hose. By driving the infusion pump 8, the uterine distension fluid in the uterine distension fluid container 2 can be input from the image acquisition device into the patient's uterine cavity. The liquid inlet end of the first suction pump 9 is connected to the liquid outlet end of the image acquisition device through a hose, and the liquid outlet end of the first suction pump 9 is connected to the waste liquid collection container 3 through a hose. By driving the first suction pump 9, the waste liquid in the patient's uterine cavity can be output to the waste liquid collection container 3 through the image acquisition device.

[0061] In addition, in order to better cooperate with the optical scope 7, the uterine distension instrument also includes an LED cold light source driving system 16 and an LED cold light source 17. Among them, the LED cold light source driving system 16 is electrically connected to the main control system MCU1, and the LED cold light source 17 is arranged on the optical scope 7 and connected to the uterine distension instrument through a cable.

[0062] In this embodiment, the uterine distension instrument also includes a planing device 10 electrically connected to the main control system MCU1, and the planing device 10 can be used in conjunction with the image acquisition device. After the medical staff determines the location of the lesion through the image acquisition device, the lesion of the patient is removed by the planing device 10. In addition, the planing device 10 has a channel for outputting waste liquid, which can remove the waste liquid and lesion tissue generated when the lesion is removed.

[0063] In order to cooperate with the operation of the planing device 10, the liquid pump unit also includes a second suction pump 13, the liquid inlet end of the second suction pump 13 is connected to the liquid outlet end of the planing device 10 through a hose, and the liquid outlet end of the second suction pump 13 is connected to the waste liquid collection container 3 through a hose. Through the drive of the second suction pump 13, the waste liquid and lesion tissue generated when the lesion is removed can be input into the waste liquid collection container 3 through the planing device 10 for unified management.

[0064] In this embodiment, the liquid pump unit also includes a third suction pump 11, the liquid inlet end of the third suction pump 11 is connected to the overflow liquid collection container 12 through a hose, and the liquid outlet end of the third suction pump 11 is connected to the waste liquid collection container 3 through a hose. It should be noted that the overflow liquid collection container 12 is a structure used in conjunction with the uterine distension instrument. The overflow liquid collection container 12 is mainly used to collect waste liquid overflowing from the patient's uterine cavity during surgery, and can be a bag, a bucket or other container. By driving the third suction pump 11, the waste liquid in the overflow liquid collection container 12 can be transported to the liquid collection container for unified management, thereby improving the accuracy of calculating the amount of uterine distension fluid in and out, and further ensuring the patient's life safety.

[0065] In this embodiment, the uterine distension device also includes a video processing system 14 and an image processing system 15, both of which are electrically connected to the main control system MCU1, and there is interaction between the video processing system 14 and the image processing system 15. Among them, the video processing system 14 is used to execute the video recording function of the image acquisition device; the image processing system 15 is used to convert the signal data collected by the image acquisition device into image data.

[0066] In this embodiment, the image processing system 15 is connected to a 2K / 4K LCD screen 18, which is used to display the image data collected by the image acquisition device in real time, so that medical staff can more intuitively observe the situation in the patient's uterine cavity during the operation. In addition, the image processing system 15 is also connected to a USB interface 19, which can execute the photo storage function of the image acquisition device, so as to facilitate the archiving of pictures.

[0067] In this embodiment, the uterine distension instrument further includes a foot controller 21 and a touch screen 22, both of which are electrically connected to the main control system MCU1. The foot controller 21 is used to control the image acquisition device, the planing device 10 and the liquid pump unit, so that the medical staff can control them with their feet; the touch screen 22 is used to display and adjust the parameter status of the uterine distension instrument.

[0068] In this embodiment, the uterine distension device further includes a cooling fan 25, which is electrically connected to the main control system MCU1, and is used for heat dissipation and cooling of the uterine distension device.

[0069] In this embodiment, in order to better power the uterine distension instrument, the uterine distension instrument also includes a 24V switching power supply 23 and a 12V switching power supply 24. Both the 24V switching power supply 23 and the 12V switching power supply 24 are connected to an external power supply (mains power) and powered by the external power supply; then the 24V switching power supply 23 is connected to the main control system MCU1 to power the main control system MCU1; and then the 12V switching power supply 24 is connected to the main control system MCU1, the LED cold light source driving system 16, the video processing system 14 and the image processing system 15 to power the main control system MCU1, the LED cold light source driving system 16, the video processing system 14 and the image processing system 15. The two power supplies cooperate with each other to ensure that the uterine distension instrument can operate normally.

[0070] Embodiment 2

[0071] like Figure 4 As shown, the embodiment of the present application provides a liquid management method, which is applied to the uterine distension device in embodiment 1, and the method includes the following steps:

[0072] S100, obtaining weight data of the uterine distension fluid container 2 and the waste fluid collection container 3 in real time;

[0073] S200, calculating the reduction amount of the uterine distension fluid in the uterine distension fluid container 2 according to the weight data of the uterine distension fluid container 2;

[0074] S300, calculating the amount of waste liquid in the waste liquid collection container 3 according to the weight data of the waste liquid collection container 3;

[0075] S400, the value obtained by subtracting the amount of waste fluid in the waste fluid collection container 3 from the amount of uterine distension fluid in the uterine distension fluid container 2 is the amount of uterine distension fluid in and out.

[0076] By adopting the above calculation method, the amount of uterine distension fluid in and out can be calculated, so that medical staff can know in time whether the patient absorbs too much uterine distension fluid.

[0077] In this embodiment, the amount of waste liquid in the waste liquid collection container 3 includes: waste liquid output by the image acquisition device and the first suction pump 9, waste liquid output by the planing device 10 and the second suction pump 13, and waste liquid output by the third suction pump 11. Through such a setting, all waste liquids generated by the three channels during the operation are input into the waste liquid collection container 3 for unified management, and the amount of waste liquid generated during the operation can be accurately calculated, so that the subsequent calculation of the amount of distension fluid in and out is more accurate, thereby further ensuring the patient's life safety.

[0078] It should be noted that the waste liquid output by the planing device 10 and the second suction pump 13 contains some lesion tissues, but the weight and volume of these tissues are very small, and the interference caused to the calculation of the amount of waste liquid is relatively small. In addition, in another embodiment, the calculated amount of waste liquid can also be subtracted from a preset value, and this preset value can appropriately offset the amount of lesion tissues to ensure that the final calculation result is more accurate.

[0079] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention. The techniques, shapes, and structural parts not described in detail in the present invention are all known technologies.

[0080] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0081] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0082] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0083] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A uterine distension device for convenient liquid management, characterized in that: include: Main control system MCU (1); a liquid pump unit, the liquid pump unit being electrically connected to the main control system MCU (1) and being used for delivering the uterine distension fluid in the uterine distension fluid container (2) into the uterine cavity of the patient, and for delivering waste fluid generated during the operation into the waste fluid collection container (3); and A monitoring unit, the monitoring unit is electrically connected to the main control system MCU (1), and is used to collect weight data of the uterine distension fluid container (2) and the waste fluid collection container (3) in real time, and send the weight data to the main control system MCU (1) in real time. The main control system MCU (1) calculates the inflow and outflow of the uterine distension fluid in real time based on the weight data of the uterine distension fluid container (2) and the waste fluid collection container (3).

2. A uterine distension device for facilitating liquid management according to claim 1, characterized in that: The monitoring unit comprises a first weight sensor (4) and a second weight sensor (5); The first weight sensor (4) is used to collect weight data of the uterine distension fluid container (2); The second weight sensor (5) is used to collect weight data of the waste liquid collection container (3).

3. A uterine distension device for convenient liquid management according to claim 1, characterized in that: The uterine distention device further comprises an image acquisition device electrically connected to the main control system MCU (1), the image acquisition device being used to acquire image data in the uterine cavity, and the image acquisition device being capable of inputting uterine distention fluid and outputting waste fluid; The liquid pump unit comprises an infusion pump (8) and a first suction pump (9); The liquid inlet end of the perfusion pump (8) is connected to the uterine distension fluid container (2) through a hose, and the liquid outlet end of the perfusion pump (8) is connected to the liquid inlet end of the image acquisition device through a hose; The liquid inlet end of the first suction pump (9) is connected to the liquid outlet end of the image acquisition device through a hose, and the liquid outlet end of the first suction pump (9) is connected to the waste liquid collection container (3) through a hose.

4. A uterine distension device for convenient liquid management according to claim 3, characterized in that: The uterine distension device further comprises a shaving device (10) electrically connected to the main control system MCU (1), the shaving device (10) being used to remove the lesion, and the shaving device (10) being capable of outputting waste liquid; The liquid pump unit further comprises a second suction pump (13), the liquid inlet end of the second suction pump (13) being connected to the liquid outlet end of the planing device (10) via a hose, and the liquid outlet end of the second suction pump (13) being connected to the waste liquid collection container (3) via a hose.

5. A uterine distension device for convenient liquid management according to claim 4, characterized in that: The liquid pump unit further comprises a third suction pump (11), the liquid inlet end of the third suction pump (11) being connected to the overflow liquid collection container (12) via a hose, and the liquid outlet end of the third suction pump (11) being connected to the waste liquid collection container (3) via a hose.

6. A uterine distension device for facilitating liquid management according to claim 4, characterized in that: The uterine distension device further comprises a video processing system (14) and an image processing system (15), and the video processing system (14) and the image processing system (15) are both electrically connected to the main control system MCU (1); The video processing system (14) is used to execute the video recording function of the image acquisition device; The image processing system (15) is used to convert the signal data collected by the image collection device into image data.

7. A uterine distension device for facilitating liquid management according to claim 6, characterized in that: The image processing system (15) is connected to a 2K / 4K liquid crystal display screen (18), and the 2K / 4K liquid crystal display screen (18) is used to display image data collected by an image collection device in real time.

8. The uterine distension device for facilitating liquid management according to claim 4, characterized in that: The uterine distension device further comprises a foot controller (21) and a touch screen (22), and the foot controller (21) and the touch screen (22) are both electrically connected to the main control system MCU (1); The foot controller (21) is used to control the image acquisition device, the planing device (10) and the liquid pump unit; The touch display screen (22) is used to display and adjust the parameter status of the uterine expansion device.

9. The uterine distension device for facilitating liquid management according to claim 1, characterized in that: The uterine distension device further comprises a heat dissipation fan (25) electrically connected to the main control system MCU (1), and the heat dissipation fan (25) is used for heat dissipation and temperature reduction of the uterine distension device.

10. A method for liquid management, characterized in that: The method comprises: Obtaining weight data of the uterine distension fluid container (2) and the waste fluid collection container (3) in real time; Calculating the reduction in the amount of uterine distension fluid in the uterine distension fluid container (2) based on the weight data of the uterine distension fluid container (2); Calculating the amount of waste liquid in the waste liquid collection container (3) based on the weight data of the waste liquid collection container (3); The value obtained by subtracting the amount of waste fluid in the waste fluid collection container (3) from the reduced amount of uterine distension fluid in the uterine distension fluid container (2) is the inflow and outflow of the uterine distension fluid.

11. A liquid management method according to claim 10, characterized in that: The amount of waste liquid in the waste liquid collection container (3) includes: waste liquid output through the image acquisition device and the first suction pump (9), waste liquid output through the planing device (10) and the second suction pump (13), and waste liquid output through the third suction pump (11).

Images