A hysteroscopic uterine distension medium inflow and outflow counting and alarm device

Abstract

The present invention relates to the field of gynecological auxiliary instruments, specifically a hysteroscopic uterine distension medium input and output statistics and alarm device, comprising a shell, a uterine distension pump and a warning display light, the front end face of the shell is provided with a uterine distension pump; the interior of the uterine distension pump is connected to a catheter; the front end face of the shell is provided with a warning display light; the interior of the shell is fixedly connected with a first liquid tank and a second liquid tank; the bottoms of the first liquid tank and the second liquid tank are fixedly connected with a support plate; the top surface of the support plate is fixedly connected with a first pressure sensor; the bottom surface of the support plate is fixedly connected with a second pressure sensor; the present invention can realize the collection of weight data of input and output, the weight of liquid added during the operation can be superimposed and accumulated, and the total usage time can be calculated at the same time. When the difference between the usage time and the input and output reaches a preset value, an alarm prompt can be issued respectively. When the difference between the input and output reaches a maximum threshold, different alarm prompts are issued, which is convenient for timely disposal and reduces surgical risks.

Description

Technical Field

[0001] The present invention relates to the field of gynecological auxiliary instruments, in particular to a hysteroscopic uterine distension medium inflow and outflow counting and alarm device. Background Art

[0002] During uterine cavity examination and uterine cavity surgery, uterine distension media is needed, but there are strict requirements for the use of uterine distension media. If it is not operated properly, hysteroscopic water intoxication will occur. Although the probability of hysteroscopic water intoxication is low, if it is not discovered and treated in time, it will cause serious adverse consequences to the surgical patients and even endanger their lives.

[0003] According to the new uterine distension machine and its control method in CN111110180A, the invention detects the uterine distension fluid pressure data in the uterus by connecting a pressure sensor to one end of the infusion tube near the uterus and transmits it to the controller. The uterine distension fluid pressure data transmitted by the controller is then compared with the preset uterine distension pressure. By controlling the forward and reverse rotation of the motor to drive the lifting support device to rise and fall, a constant uterine distension fluid pressure consistent with the preset uterine distension pressure is obtained, which effectively prevents gas embolism and keeps the uterine distension fluid pressure constant in real time, thereby improving the quality of hysteroscopic surgery.

[0004] However, in the existing technology, the prevention of water intoxication during hysteroscopic surgery requires accurate measurement of the usage time, input volume and output volume of the uterine distension medium during the operation and rapid termination when an imbalance is found. At present, the input volume of uterine distension medium during hysteroscopic surgery in various hospitals is basically pressurized input by a uterine distension pump, and the output volume is mainly simply discharged. Accurate input and output statistics and intelligent usage time reminders are not performed. The identification of imbalance in input and output can basically be discovered and handled after the patient shows symptoms of water intoxication, and early alarm function cannot be realized.

[0005] To this end, the present invention proposes a hysteroscopic uterine distension medium inflow and outflow statistics and alarm device. Summary of the Invention

[0006] In order to make up for the existing technology and prevent water intoxication during hysteroscopic surgery, it is necessary to accurately measure the usage time, input and output of the uterine distension medium during the operation and quickly terminate it when an imbalance is found. At present, the input of uterine distension medium during hysteroscopic surgery in various hospitals is basically pressurized input by a uterine distension pump, and the output is mainly simply discharged. Accurate input and output statistics and intelligent usage time reminders are not performed. The identification of input and output imbalance can basically be discovered and processed after the patient shows symptoms of water intoxication, and the early alarm function cannot be realized. The present invention proposes a hysteroscopic uterine distension medium input and output statistics and alarm device.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the hysteroscopic uterine distension medium inflow and outflow statistics and alarm device described in the present invention includes a shell, a uterine distension pump and a warning indicator light, the front end face of the shell is provided with a uterine distension pump; the interior of the uterine distension pump is connected to a catheter; the front end face of the shell is fixedly connected to an operation panel; the front end face of the shell is provided with a warning indicator light near the operation panel; the interior of the shell is fixedly connected to a first liquid tank, and the first liquid tank and the catheter are connected to each other; the interior of the shell is fixedly connected to a second liquid tank near the first liquid tank; the second liquid tank is connected to the first liquid pump; the bottoms of the first and second liquid tanks A support plate is fixedly connected; a first pressure sensor is fixedly connected to the top surface of the support plate; a second pressure sensor is fixedly connected to the bottom surface of the support plate; a support frame is provided near the shell; a pressure sensing block is provided in the middle of the support frame, and the pressure sensing block is connected to the shell through a power cord; two infusion bags are hung on the top of the support frame, and the two infusion bags are staggered up and down, and an infusion tube is connected between the two infusion bags; the infusion bag at the bottom is connected to the first liquid tank through the infusion tube; the infusion tube near the first liquid tank is connected to a bubble detector; the surface of the infusion tube near the bubble detector is connected to a second liquid pump;During work, during uterine cavity inspection and uterine cavity surgery, uterine distension media is needed, but there are strict requirements for the use of uterine distension media. If it is not operated properly, hysteroscopic water poisoning will occur. Although the probability of hysteroscopic water poisoning is low, if it is not discovered and treated in time, it will also cause serious adverse consequences to the surgical patients, and even endanger their lives. In the existing technology, to prevent hysteroscopic surgical water poisoning, it is necessary to accurately measure the use time, input and output of the intraoperative uterine distension medium and quickly terminate it when an imbalance is found. At present, the amount of uterine distension medium input in hysteroscopic surgery in various hospitals is basically pressurized by a uterine distension pump. The input and output are mainly discharged simply, without accurate input and output statistics and intelligent usage time reminders. The imbalance of input and output can only be discovered and processed after the patient has symptoms of water intoxication, and the early alarm function cannot be realized. Through the hysteroscopic uterine distension medium input and output statistics and alarm device of the present invention, when using the uterine distension device, the uterine distension medium in the two infusion bags staggered up and down will be first introduced into the interior of the first liquid tank through the infusion tube through the second liquid pump. At the same time, the bubble situation in the infusion tube can be monitored in real time through the bubble detector, which is located at the bottom After the distension medium inside the infusion bag is completely drained, a warning light can be used to provide a prompt. The distension pump continuously directs the liquid inside the first fluid tank into the uterus, providing pressure support. Simultaneously, the liquid, under the action of the first fluid pump, flows back through the corresponding catheter tube, allowing the liquid to flow back into the second fluid tank for collection. The first pressure sensor senses the total weight of the first and second fluid tanks, while the pressure sensing block detects changes in the total weight of the infusion bag. The weight changes of the infusion bag, the first and second fluid tanks are constantly monitored, and the internal processing system automatically calculates the difference between the drained and returned liquid within a specified time period. The second pressure sensor also continuously detects changes in the total volume of the first and second fluid tanks. If any data is abnormal, an alarm can be issued immediately. The present invention enables the collection of inflow and outflow weight data. The added weight of liquid during surgery can be accumulated, and the total duration of use can be calculated. When the difference between the usage time and inflow and outflow reaches a preset value, separate alarms can be issued. When the difference between the inflow and outflow reaches a maximum threshold, different alarms are issued, facilitating timely response and reducing surgical risks.

[0008] Preferably, a guide groove is provided inside the first liquid tank; a plug plate is slidably connected inside the guide groove; a one-way valve is provided on the surface of the plug plate; a liquid injection pipe is fixedly connected to the side of the first liquid tank at the bottom position of the plug plate; a liquid discharge pipe is fixedly connected to the side of the second liquid tank near the bottom position of the first liquid tank; a control valve is provided inside the liquid injection pipe and the discharge pipe; during operation, the plug plate is set and the plug plate can move up and down inside the first liquid tank. Before an examination or operation, liquid can be injected into the first liquid tank through the liquid injection pipe. As the liquid level inside the first liquid tank rises, the buoyancy of the liquid will cause the plug plate to move upward. When the plug plate moves to the top position, the liquid will cause the gas at the bottom of the plug plate to be discharged upward through the one-way valve, and finally the gas at the bottom of the plug plate is completely discharged. When the liquid is used, the liquid level drops. At this time, the plug plate will drop with the liquid level, and the gas at the top of the plug plate cannot be introduced into the liquid. When the liquid is about to be used up, the gas will no longer be introduced into the liquid guide pipe. At the same time, the liquid guide will automatically stop according to the position of the plug plate.

[0009] Preferably, a sealing film is fixedly connected to the surface of the plug plate near the side of the plug plate; a first telescopic rod is fixedly connected to the inside of the guide groove; a slide groove is opened inside the first liquid tank near the bottom of the first liquid tank; a slider is slidably connected to the inside of the slide groove; a second telescopic rod is fixedly connected to the side of the slide groove, and the second telescopic rod is connected to the first telescopic rod; the top surfaces of the slide plate and the slide groove are fixedly connected to uniformly arranged elastic plates; during operation, through the first telescopic rod and the second telescopic rod, when the liquid level rises, bubbles are likely to remain at the bottom of the first liquid tank, and the rising liquid level will drive the first telescopic rod to extend and retract, the first telescopic rod will drive the second telescopic rod to extend and retract, the second telescopic rod will drive the slider to slide, and the slider will drive the elastic plates on its top to contact and collide, causing the bottom of the first liquid bag to vibrate, thereby promoting the complete discharge of the residual gas at the bottom of the first liquid tank.

[0010] Preferably, a control groove is provided inside the plug plate; a control plate is slidably connected inside the control groove; a first connecting hole is provided on the top of the control groove, and a one-way valve is provided inside the first connecting hole; a second connecting hole is provided on the surface of the control plate; a third connecting hole is evenly arranged on the bottom of the control groove; an air bag is fixedly connected to the top surface of the control plate; a sealing ring is fixedly connected to the top surface of the control plate at the position of the first connecting hole; a plug cavity is provided inside the plug plate, and the plug cavity and the air bag are connected to each other; a piston is slidably connected to the inside of the plug cavity; an opening and closing plate is provided on the side of the piston; and the surface of the opening and closing plate is evenly distributed. When the piston moves to the top position, the piston will drive the opening and closing plate to move automatically, and the plug plate will be sealed by the opening and closing plate. Since the liquid level is already at the top position of the opening and closing plate at this time, no gas will remain at the bottom of the plug plate when the opening and closing plate is closed. At the same time, the sealing ring can promote airtightness and reduce the risk of reverse leakage.

[0011] Preferably, an electric telescopic rod is fixedly connected between the opening and closing plate and the piston; a third pressure sensor is fixedly connected to the side position of the inner part of the plug plate near the opening and closing plate; when working, the electric telescopic rod is set, and the piston moves to drive the opening and closing plate to move and close, but the closing seal is not complete and the sealing effect is weak. The electric telescopic rod will drive the opening and closing plate to continue moving to ensure that the opening and closing plate is completely closed. At the same time, the closing pressure of the opening and closing plate can be sensed by the third pressure sensor, and then the sealing pressure information can be obtained to ensure the closing seal of the opening and closing plate. At the same time, the opening and closing plate can also be automatically opened by the electric telescopic rod. At this time, the residual liquid on the top of the opening and closing plate flows in the opposite direction to be used for the resetting operation of the plug plate.

[0012] Preferably, a connecting block is fixedly connected between the first liquid tank and the liquid catheter; a light-transmitting block is fixedly connected to the interior of the connecting block; a channel is opened inside the light-transmitting block, one end opening of the channel is interconnected with the first liquid tank, and the other end opening of the channel is interconnected with the liquid catheter; a light-emitting device is fixedly connected to the top surface of the light-transmitting block; a receiver is fixedly connected to the bottom surface of the light-transmitting block; during operation, by setting the connecting block and by setting the light-transmitting block inside the connecting block, when the liquid is discharged from the interior of the first liquid tank, it will first flow inside the channel inside the light-transmitting block. If bubbles appear during the flow, the bubbles will cause the light source emitted by the light-emitting device to be refracted and reflected, resulting in changes in the light signal received by the receiver, alerting medical staff to pay attention and to deal with it in a timely and effective manner.

[0013] Preferably, the channel is designed with a zigzag structure, requiring the liquid in the channel to pass through the position between the light emitter and the receiver multiple times, and the channel and the light emitter are designed to be perpendicular between the light emitter and the receiver; when working, by designing the channel to be zigzag, the liquid can pass through the position between the light emitter and the receiver multiple times when flowing in the channel, ensuring that the light emitter and the receiver fully obtain the bubble existence signal, avoiding the bubble flowing too fast inside the channel, and the receiver cannot sense the signal generated by the bubble at one time.

[0014] Preferably, a mounting groove is provided inside the channel, and the mounting grooves are all designed as spherical structures; the mouths of the mounting grooves are all provided with oblique grooves; during operation, by providing a mounting groove inside the channel, and the mounting groove is located at the inner top position of the arc-shaped channel, when the liquid flows, the bubbles move upward due to buoyancy, and the centrifugal force of the fluid at this position is small, the bubbles are easy to collect, and the amount of bubbles continuing to flow downward is reduced.

[0015] Preferably, the interior of the mounting groove is fixedly connected with an elastic pad; the elastic pad is designed as a spherical structure; a shaped groove is provided at the bottom of the elastic pad; a liquid guide head is fixedly connected to the top of the shaped groove; a control valve is fixedly connected between the liquid guide head and the first liquid tank; when working, by setting the elastic pad and setting the liquid guide head inside the elastic pad, before inspection or surgery, by opening the control valve, the liquid inside the first liquid tank flows directly into the interior of the mounting groove, thereby promoting the complete discharge of residual gas inside the mounting groove.

[0016] Preferably, an arc-shaped plate is fixedly connected to the top position of the liquid-conducting head inside the elastic pad; a fourth pressure sensor is fixedly connected to the side surface of the arc-shaped plate relative to the liquid-conducting head; during operation, through the elastic action of the elastic pad, when there is liquid, the pressure of the liquid on the internal surface of the elastic pad is basically the same, but if gas is collected inside the elastic pad during the operation of the equipment, the fourth pressure sensor will receive the change in the pressure signal, which plays a role in obtaining bubble information for the second time. At the same time, in the early stage of work, a signal that the gas inside the elastic pad is completely discharged can be obtained to avoid gas remaining inside the elastic pad in the initial state during operation.

[0017] The present invention is beneficial in that:

[0018] 1. The present invention provides a shell, a uterine distension pump and a warning display light, and provides a first liquid tank and a second liquid tank as well as a pressure sensor and alarm system inside the shell to realize the collection of weight data of the input and output. The weight of the liquid added during the operation can be accumulated, and the total usage time can be calculated. When the difference between the usage time and the input and output reaches a preset value, an alarm prompt can be issued respectively. When the difference between the input and output reaches the maximum threshold, different alarm prompts are issued, which facilitates timely disposal and reduces surgical risks.

[0019] 2. The present invention sets a light-transmitting block, a light emitter and a receiver, sets a connecting block, and sets a light-transmitting block inside the connecting block. When the liquid is discharged from the interior of the first liquid tank, it will first flow inside the channel inside the light-transmitting block. If bubbles appear during the flow, the bubbles will cause the light source emitted by the light emitter to be refracted and reflected, resulting in changes in the light signal received by the receiver, alerting medical staff to pay attention and to deal with it in a timely and effective manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A perspective view of the present invention;

[0022] Figure 2 It is the front view of the present invention;

[0023] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0024] Figure 4 is a cross-sectional view of the plug plate of the present invention;

[0025] Figure 5 is a cross-sectional view of the light-transmitting block of the present invention;

[0026] Figure 6 is a cross-sectional view of the curved plate of the present invention;

[0027] In the figure: housing 1, uterine distension pump 2, warning indicator light 3, catheter 4, first liquid tank 5, second liquid tank 6, support plate 7, first pressure sensor 8, second pressure sensor 9, plug plate 10, one-way valve 11, injection tube 12, discharge tube 13, sealing membrane 14, first telescopic rod 15, slider 16, second telescopic rod 17, elastic plate 18, control board 19, airbag 20, sealing ring 21, piston 22, opening and closing plate 23, electric telescopic rod 24, third pressure sensor 25, connecting block 26, light-transmitting block 27, channel 28, light emitter 29, receiver 30, elastic pad 31, liquid guide head 32, fourth pressure sensor 33, support frame 34, pressure sensing block 35, infusion bag 36, infusion tube 37, bubble detector 38, first liquid pump 39, second liquid pump 40. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0029] Example 1

[0030] See also Figure 1-5As shown, a hysteroscopic uterine distension medium inflow and outflow statistics and alarm device includes a shell 1, a uterine distension pump 2 and a warning display light 3. The front end face of the shell 1 is provided with a uterine distension pump 2; the interior of the uterine distension pump 2 is connected to a catheter 4; the front end face of the shell 1 is fixedly connected to an operation panel; the front end face of the shell 1 is provided with a warning display light 3 near the operation panel; the interior of the shell 1 is fixedly connected to a first liquid tank 5, and the first liquid tank 5 and the catheter 4 are communicated with each other; the interior of the shell 1 is fixedly connected to a second liquid tank 6 near the first liquid tank 5; the second liquid tank 6 is connected to a first liquid pump 39; the bottom of the first liquid tank 5 and the second liquid tank 6 are fixedly connected to a support plate 7; the top surface of the support plate 7 is fixedly connected to the first liquid tank 5. a pressure sensor 8; a second pressure sensor 9 is fixedly connected to the bottom surface of the support plate 7; a support frame 34 is provided near the housing 1; a pressure sensing block 35 is provided in the middle of the support frame 34, and the pressure sensing block 35 is connected to the housing 1 via a power cord; two infusion bags 36 are hung on the top of the support frame 34, and the two infusion bags 36 are staggered up and down, and an infusion tube 37 is connected between the two infusion bags 36; the infusion bag 36 at the bottom is connected to the first liquid tank 5 through the infusion tube 37; the infusion tube 37 near the first liquid tank 5 is connected to a bubble detector 38; the surface of the infusion tube 37 near the bubble detector 38 is connected to a second liquid pump 40;During work, during uterine cavity inspection and uterine cavity surgery, uterine distension medium is needed, but there are strict requirements for the use of uterine distension medium. If it is not operated properly, hysteroscopic water poisoning will occur. Although the probability of hysteroscopic water poisoning is low, if it is not discovered and treated in time, it will also cause serious adverse consequences to the surgical patients, and even endanger their lives. In the existing technology, to prevent hysteroscopic surgical water poisoning, it is necessary to accurately measure the use time, input volume and output volume of the intraoperative uterine distension medium and quickly terminate it when an imbalance is found. At present, the uterine distension medium input volume of hysteroscopic surgery in various hospitals is basically pressurized input by a uterine distension pump 2, and the output volume is simple. The single lower row is mainly used, and no accurate intake and output statistics and intelligent usage time reminder are performed. The imbalance of intake and output can be basically discovered and processed after the patient has symptoms of water intoxication, and the early alarm function cannot be realized. Through a hysteroscopic uterine distension medium intake and output statistics and alarm device of the present invention, when using the uterine distension device, the uterine distension medium inside the two infusion bags 36 staggered in the upper and lower directions is first introduced into the interior of the first liquid tank 5 through the infusion tube 37 through the second liquid pump 40, and at the same time, the bubble situation inside the infusion tube 37 can be monitored in real time through the bubble detector 38. The infusion bag 36 at the bottom position After the internal uterine distension medium is completely discharged, the warning display light can be used to remind in time, and the uterine distension pump 2 will continuously introduce the liquid inside the first liquid tank 5 into the interior of the uterus to play a pressure support role. At the same time, the liquid will also flow back through the corresponding catheter 4 under the action of the first liquid pump 39, so that the liquid will flow back to the interior of the second liquid tank 6 for collection. The total weight of the first liquid tank 5 and the second liquid tank 6 can be sensed by the first pressure sensor 8, and the change in the total weight of the infusion bag 36 can be obtained by the pressure sensing block 35. The weight change of the infusion bag 36, the first liquid tank 5 and the second liquid tank 6 is obtained at all times, and the weight change of the infusion bag 36, the first liquid tank 5 and the second liquid tank 6 is obtained by the internal treatment The management system automatically calculates the difference between the discharged and returned liquids within a specified time period. At the same time, the second pressure sensor 9 can also constantly monitor the total volume changes of the first and second liquid tanks 5 and 6. If any abnormality is detected in the data, an alarm can be issued in a timely manner. The present invention can collect the weight data of the input and output volumes, and the added weight of the liquid during the operation can be accumulated. The total duration of use can also be calculated. When the difference between the usage time and the input and output volume reaches a certain preset value, an alarm can be issued separately. When the difference between the input and output volume reaches a maximum threshold, a different alarm can be issued, facilitating timely handling and reducing surgical risks.

[0031] A guide groove is provided inside the first liquid tank 5; a plug plate 10 is slidably connected to the inside of the guide groove; a one-way valve 11 is provided on the surface of the plug plate 10; a liquid injection pipe 12 is fixedly connected to the side of the first liquid tank 5 at the bottom of the plug plate 10; a liquid discharge pipe 13 is fixedly connected to the side of the second liquid tank 6 near the bottom of the first liquid tank 5; control valves are provided inside the liquid injection pipe 12 and the liquid discharge pipe 13; during operation, by setting the plug plate 10, and the plug plate 10 can move up and down inside the first liquid tank 5, liquid can be injected into the liquid tank 5 through the liquid injection pipe 12 before an examination or operation. Inside the first liquid tank 5, as the liquid level inside the first liquid tank 5 rises, the buoyancy of the liquid will cause the plug plate 10 to move upward. When the plug plate 10 moves to the top position, the liquid will cause the gas at the bottom of the plug plate 10 to be discharged upward through the one-way valve 11. Eventually, the gas at the bottom of the plug plate 10 is completely emptied. When the liquid is used, the liquid level drops. At this time, the plug plate 10 will drop with the liquid level. The gas at the top of the plug plate 10 cannot be introduced into the interior of the liquid. When the liquid is about to be used up, the interior of the liquid guide tube 4 will no longer introduce gas. At the same time, the liquid guide tube can also automatically stop according to the position of the plug plate 10.

[0032] The surface of the plug plate 10 is fixedly connected with a sealing film 14 near the side of the plug plate 10; the inside of the guide groove is fixedly connected with a first telescopic rod 15; the inside of the first liquid tank 5 is provided with a slide groove near the bottom of the first liquid tank 5; the inside of the slide groove is slidably connected with a slider 16; the side of the slide groove is fixedly connected with a second telescopic rod 17, and the second telescopic rod 17 is connected to the first telescopic rod 15; the top surfaces of the slide plate and the slide groove are fixedly connected with evenly arranged elastic plates 18; during operation, when the liquid level rises through the first telescopic rod 15 and the second telescopic rod 17, bubbles are likely to remain at the bottom of the first liquid tank 5, and the rising liquid level will drive the first telescopic rod 15 to extend and retract, and the first telescopic rod 15 will drive the second telescopic rod 17 to extend and retract, and the second telescopic rod 17 will drive the slider 16 to slide, and the slider 16 will drive the elastic plates 18 on its top to contact and collide, causing the bottom of the first liquid bag to vibrate, thereby promoting the complete discharge of the residual gas at the bottom of the first liquid tank 5.

[0033] The plug plate 10 is provided with a control groove inside; the control groove is slidably connected to a control plate 19 inside; the top of the control groove is provided with a first connecting hole, and a one-way valve 11 is provided inside the first connecting hole; the surface of the control plate 19 is provided with a second connecting hole; the bottom of the control groove is provided with a uniformly arranged third connecting hole; the top surface of the control plate 19 is fixedly connected to an airbag 20; the top surface of the control plate 19 is fixedly connected to a sealing ring 21 at the position of the first connecting hole; the plug plate 10 is provided with a plug cavity, and the plug cavity and the airbag 20 are connected to each other; the plug cavity is slidably connected to a piston 22; the side of the piston 22 is provided with an opening and closing plate 23; the surface of the opening and closing plate 23 is provided with a uniformly arranged fourth connecting hole Hole; during operation, by setting the airbag 20 and the opening and closing plate 23, when the plug plate 10 moves to the top position, the plug plate 10 will stop moving, but the liquid level will continue to rise at this time, and the liquid will continue to drive the control plate 19 to move inside the control groove, and the control plate 19 will squeeze the airbag 20 during the movement, so that the gas inside the airbag 20 is introduced into the inside of the plug cavity, and then the piston 22 moves at this time, and the piston 22 will drive the opening and closing plate 23 to move automatically, and the plug plate 10 is sealed by the opening and closing plate 23. Since the liquid level is already at the top position of the opening and closing plate 23 at this time, when the opening and closing plate 23 is closed, no gas will remain at the bottom of the plug plate 10, and the sealing ring 21 can promote sealing and reduce the risk of reverse leakage.

[0034] An electric telescopic rod 24 is fixedly connected between the opening and closing plate 23 and the piston 22; a third pressure sensor 25 is fixedly connected to the side position of the inner part of the plug plate 10 near the opening and closing plate 23; when working, by setting the electric telescopic rod 24, the piston 22 moves, driving the opening and closing plate 23 to move and close, but the closing seal is not complete and the sealing effect is weak. Through the electric telescopic rod 24, the electric telescopic rod 24 will drive the opening and closing plate 23 to continue moving, ensuring that the opening and closing plate 23 is completely closed. At the same time, the closing pressure of the opening and closing plate 23 can be sensed through the third pressure sensor 25, and then the sealing pressure information can be obtained to ensure the closing sealing of the opening and closing plate 23. At the same time, the opening and closing plate 23 can also be automatically opened by the electric telescopic rod 24. At this time, the residual liquid on the top of the opening and closing plate 23 flows in the opposite direction to be used for the reset operation of the plug plate 10.

[0035] A connecting block 26 is fixedly connected between the first liquid tank 5 and the catheter 4; a light-transmitting block 27 is fixedly connected to the interior of the connecting block 26; a channel 28 is opened inside the light-transmitting block 27, one end opening of the channel 28 is interconnected with the first liquid tank 5, and the other end opening of the channel 28 is interconnected with the catheter 4; a light-emitting device 29 is fixedly connected to the top surface of the light-transmitting block 27; a receiver 30 is fixedly connected to the bottom surface of the light-transmitting block 27; during operation, by setting the connecting block 26 and by setting the light-transmitting block 27 inside the connecting block 26, when the liquid is discharged from the interior of the first liquid tank 5, it will first flow inside the channel 28 inside the light-transmitting block 27. If bubbles appear during the flow, the bubbles will cause the light source emitted by the light-emitting device 29 to be refracted and reflected, resulting in changes in the light signal received by the receiver 30, reminding medical staff to pay attention and to deal with it in a timely and effective manner.

[0036] The channel 28 is designed with a zigzag structure, requiring the liquid in the channel 28 to pass through the position between the light emitter 29 and the receiver 30 multiple times, and the channel 28 and the light emitter 29 are designed to be perpendicular between the light emitter 29 and the receiver 30; when working, by designing the channel 28 to be zigzag, the liquid can pass through the position between the light emitter 29 and the receiver 30 multiple times when flowing in the channel 28, ensuring that the light emitter 29 and the receiver 30 fully obtain the bubble existence signal, avoiding the bubble flowing too fast inside the channel 28, and the receiver 30 cannot sense the signal generated by the bubble at one time.

[0037] The channel 28 is provided with a mounting groove inside, and the mounting grooves are all spherical in structure; the mouths of the mounting grooves are provided with an oblique groove; during operation, by providing a mounting groove inside the channel 28, and the mounting groove is located at the inner top position of the arc-shaped channel 28, when the liquid flows, the bubbles move upward due to buoyancy, and the centrifugal force of the fluid at this position is small, the bubbles are easy to collect, and the amount of bubbles continuing to flow downward is reduced.

[0038] The interior of each mounting groove is fixedly connected with an elastic pad 31; the elastic pad 31 is designed as a spherical structure; a shaped groove is provided at the bottom of the elastic pad 31; a liquid guide head 32 is fixedly connected to the top of the shaped groove; a control valve is fixedly connected between the liquid guide head 32 and the first liquid tank 5; during operation, by setting the elastic pad 31 and setting the liquid guide head 32 inside the elastic pad 31, before an inspection or operation, by opening the control valve, the liquid inside the first liquid tank 5 flows directly into the interior of the mounting groove, thereby promoting the complete discharge of residual gas inside the mounting groove.

[0039] Example 2

[0040] See also Figure 6As shown, the interior of the elastic pad 31 is fixedly connected to the top position of the liquid guiding head 32 with an arc-shaped plate; the arc-shaped plate is fixedly connected to the side surface of the liquid guiding head 32 on one side; during operation, through the elastic action of the elastic pad 31, when there is liquid, the pressure of the liquid on the internal surface of the elastic pad 31 is basically the same, but if during the operation of the equipment, if gas is collected inside the elastic pad 31, the fourth pressure sensor 33 will receive the change of the pressure signal, which plays a role in obtaining the bubble information for the second time. At the same time, in the early stage of work, the signal that the gas inside the elastic pad 31 is completely discharged can be obtained to avoid gas remaining inside the elastic pad 31 in the initial state during operation.

[0041] Working principle: when using the uterine distension device, the second liquid pump 40 will first introduce the uterine distension medium inside the two infusion bags 36 distributed alternately up and down into the interior of the first liquid tank 5 through the infusion tube 37. At the same time, the bubble situation inside the infusion tube 37 can be monitored in real time through the bubble detector 38. After the uterine distension medium inside the infusion bag 36 at the bottom position is completely discharged, the warning display light can be used to remind in time. The uterine distension pump 2 will continuously introduce the liquid inside the first liquid tank 5 into the interior of the uterus to play a pressure support role. At the same time, the liquid will also be returned through the corresponding catheter 4 under the action of the first liquid pump 39. The flow causes the liquid to flow back to the interior of the second liquid tank 6 for collection. The total weight of the first liquid tank 5 and the second liquid tank 6 can be sensed by the first pressure sensor 8. At the same time, the change in the total weight of the infusion bag 36 is obtained by the pressure sensing block 35. The weight change of the infusion bag 36, the first liquid tank 5 and the second liquid tank 6 is obtained at all times, and the internal processing system is used to automatically calculate and obtain the difference between the exported and returned liquids within a specified time period. At the same time, the total amount change of the first liquid tank 5 and the second liquid tank 6 can also be obtained at all times through the second pressure sensor 9. If the data is abnormal, an alarm can be triggered in time. By setting The plug plate 10 is provided, and the plug plate 10 can move up and down inside the first liquid tank 5. Before an examination or operation, liquid can be injected into the first liquid tank 5 through the injection tube 12. As the liquid level inside the first liquid tank 5 rises, the buoyancy of the liquid will cause the plug plate 10 to move upward. When the plug plate 10 moves to the top position, the liquid will cause the gas at the bottom of the plug plate 10 to be discharged upward through the one-way valve 11. Finally, the gas at the bottom of the plug plate 10 is completely emptied. When the liquid is used, the liquid level drops. At this time, the plug plate 10 will drop along with the liquid level, and the gas at the top of the plug plate 10 cannot be introduced into the interior of the liquid. When the liquid is about to be used up, the interior of the liquid guide tube 4 will no longer introduce gas, and the liquid introduction can also be automatically stopped according to the position of the plug plate 10. When the liquid level rises, bubbles are likely to remain at the bottom of the first liquid tank 5 due to the first telescopic rod 15 and the second telescopic rod 17. The rising liquid level will drive the first telescopic rod 15 to extend and retract, and the first telescopic rod 15 will drive the second telescopic rod 17 to extend and retract, and the second telescopic rod 17 will drive the slider 16 to slide, and the slider 16 will drive the elastic plate 18 on its top to contact and collide, causing the bottom of the first liquid bag to vibrate, thereby promoting the complete discharge of the residual gas at the bottom of the first liquid tank 5.By providing the airbag 20 and the opening and closing plate 23, when the plug plate 10 moves to the top position, the plug plate 10 will stop moving, but the liquid level will continue to rise at this time, and the liquid will continue to drive the control plate 19 to move inside the control groove, and the control plate 19 will squeeze the airbag 20 during the movement, so that the gas inside the airbag 20 is introduced into the inside of the plug cavity, and then the piston 22 moves at this time, and the piston 22 will drive the opening and closing plate 23 to move automatically, and the plug plate 10 is sealed by the opening and closing plate 23. Since the liquid level is already at the top position of the opening and closing plate 23 at this time, when the opening and closing plate 23 is closed, no gas will remain at the bottom of the plug plate 10, and at the same time, the sealing ring 21 can be used to close the plug plate 10. To promote airtightness and reduce the risk of reverse air leakage; by setting an electric telescopic rod 24, the piston 22 moves, driving the opening and closing plate 23 to move and close, but the closing seal is not complete and the sealing effect is weak. Through the electric telescopic rod 24, the electric telescopic rod 24 will drive the opening and closing plate 23 to continue moving, ensuring that the opening and closing plate 23 is completely closed. At the same time, the closing pressure of the opening and closing plate 23 can be sensed by the third pressure sensor 25, and then the sealing pressure information is obtained to ensure the closing and sealing of the opening and closing plate 23. At the same time, the opening and closing plate 23 can also be automatically opened by the electric telescopic rod 24. At this time, the residual liquid on the top of the opening and closing plate 23 flows in the opposite direction, which is used for the reset operation of the plug plate 10. By providing the connecting block 26 and providing the light-transmitting block 27 inside the connecting block 26, when the liquid is discharged from the inside of the first liquid tank 5, it will first flow inside the channel 28 inside the light-transmitting block 27. If bubbles appear during the flow, the bubbles will cause the light source emitted by the light emitter 29 to be refracted and reflected, resulting in a change in the light signal received by the receiver 30, reminding the medical staff to pay attention and to deal with it in a timely and effective manner; by designing the channel 28 to be tortuous, the liquid can pass through the position between the light emitter 29 and the receiver 30 multiple times when flowing in the channel 28, ensuring that the light emitter 29 and the receiver 30 fully obtain the bubble presence signal, avoiding air bubbles. The bubbles flow quickly inside the channel 28, and the receiver 30 cannot sense the signal generated by the bubbles at once. By providing a mounting groove inside the channel 28, and the mounting groove is located at the inner top of the arc-shaped channel 28, when the liquid flows, the bubbles move upward due to buoyancy, and the centrifugal force of the fluid at this position is small, so the bubbles are easily collected, reducing the amount of bubbles that continue to flow downward. By providing an elastic pad 31 and a liquid guide head 32 inside the elastic pad 31, before an examination or operation, by opening the control valve, the liquid inside the first liquid tank 5 flows directly into the interior of the mounting groove, thereby promoting the complete discharge of residual gas inside the mounting groove.Due to the elastic effect of the elastic pad 31, the pressure of the liquid on the internal surface of the elastic pad 31 is basically the same when liquid is present. However, if gas accumulates inside the elastic pad 31 during operation, the fourth pressure sensor 33 will receive a change in the pressure signal, which serves as a secondary means of obtaining information about the bubbles. At the same time, during the initial operation, a signal indicating that the gas inside the elastic pad 31 has been completely discharged can be obtained to prevent gas from remaining inside the elastic pad 31 in its initial state during operation.

[0042] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A hysteroscopic uterine distension medium inflow and outflow counting and alarm device, comprising a housing, a uterine distension pump, and a warning indicator light, characterized in that: The front end face of the shell is provided with a uterine distension pump; the interior of the uterine distension pump is connected to a catheter; the front end face of the shell is fixedly connected to an operation panel; the front end face of the shell is provided with a warning display light near the operation panel; the interior of the shell is fixedly connected to a first liquid tank, and the first liquid tank and the catheter are connected to each other; the interior of the shell is fixedly connected to a second liquid tank near the first liquid tank; the second liquid tank is connected to a first liquid pump; the bottoms of the first and second liquid tanks are fixedly connected to a support plate; the top surface of the support plate is fixedly connected to a first pressure sensor; the bottom surface of the support plate is fixedly connected to a second pressure sensor; a support frame is provided near the shell; a pressure sensing block is provided in the middle of the support frame, and the pressure sensing block is connected to the shell through a power cord; two infusion bags are hung on the top of the support frame, and the two infusion bags are staggered up and down, and an infusion tube is connected between the two infusion bags; the infusion bag at the bottom is connected to the first liquid tank through an infusion tube; the infusion tube near the first liquid tank is connected to a bubble detector; the surface of the infusion tube near the bubble detector is connected to the second liquid pump; A guide groove is provided inside the first liquid tank; a plug plate is slidably connected to the inside of the guide groove; a one-way valve is provided on the surface of the plug plate; a liquid injection pipe is fixedly connected to the side of the first liquid tank at the bottom position of the plug plate; a liquid discharge pipe is fixedly connected to the side of the second liquid tank near the bottom surface of the first liquid tank; control valves are provided inside the liquid injection pipe and the liquid discharge pipe.

2. A hysteroscopic uterine distension medium inflow and outflow counting and alarm device according to claim 1, characterized in that: A sealing film is fixedly connected to the surface of the plug plate near the side of the plug plate; a first telescopic rod is fixedly connected to the inside of the guide groove; a slide groove is provided inside the first liquid tank near the bottom of the first liquid tank; a slider is slidably connected to the inside of the slide groove; a second telescopic rod is fixedly connected to the side of the slide groove, and the second telescopic rod is connected to the first telescopic rod; the top surfaces of the slider and the slide groove are fixedly connected to evenly arranged elastic plates.

3. The hysteroscopic uterine distension medium inflow and outflow counting and alarm device according to claim 2, characterized in that: A control groove is provided inside the plug plate; a control plate is slidably connected to the inside of the control groove; a first connecting hole is provided on the top of the control groove, and a one-way valve is arranged inside the first connecting hole; a second connecting hole is provided on the surface of the control plate; a third connecting hole is evenly arranged on the bottom of the control groove; an airbag is fixedly connected to the top surface of the control plate; a sealing ring is fixedly connected to the top surface of the control plate at the position of the first connecting hole; a plug cavity is provided inside the plug plate, and the plug cavity and the airbag are connected to each other; a piston is slidably connected to the inside of the plug cavity; an opening and closing plate is provided on the side of the piston; and a fourth connecting hole is evenly arranged on the surface of the opening and closing plate.

4. The hysteroscopic uterine distension medium inflow and outflow counting and alarm device according to claim 3, characterized in that: An electric telescopic rod is fixedly connected between the opening and closing plate and the piston; and a third pressure sensor is fixedly connected to a side position of the inner portion of the plug plate close to the opening and closing plate.

5. The hysteroscopic uterine distension medium inflow and outflow counting and alarm device according to claim 4, characterized in that: A connecting block is fixedly connected between the first liquid tank and the liquid guide tube; a light-transmitting block is fixedly connected to the interior of the connecting block; a channel is opened inside the light-transmitting block, one end opening of the channel is connected to the first liquid tank, and the other end opening of the channel is connected to the liquid guide tube; a light emitter is fixedly connected to the top surface of the light-transmitting block; and a receiver is fixedly connected to the bottom surface of the light-transmitting block.

6. The hysteroscopic uterine distension medium inflow and outflow counting and alarm device according to claim 5, characterized in that: The channel is designed as a zigzag structure, requiring the liquid in the channel to pass through the position between the light emitter and the receiver multiple times, and at the position between the light emitter and the receiver, the channel and the light emitter are designed to be perpendicular.

7. The hysteroscopic uterine distension medium inflow and outflow counting and alarm device according to claim 6, characterized in that: The interior of the channel is provided with a mounting groove, and the mounting grooves are all designed with a spherical structure; the mouth of the mounting groove is provided with an oblique groove.

8. The hysteroscopic uterine distension medium inflow and outflow counting and alarm device according to claim 7, characterized in that: The interior of each mounting groove is fixedly connected with an elastic pad; the elastic pad is designed as a spherical structure; a shaped groove is provided at the bottom of the elastic pad; a liquid guide head is fixedly connected to the top of the shaped groove; a control valve is fixedly connected between the liquid guide head and the first liquid tank.

9. The hysteroscopic uterine distension medium inflow and outflow counting and alarm device according to claim 8, characterized in that: An arc-shaped plate is fixedly connected to the top of the liquid-conducting head inside the elastic pad; a fourth pressure sensor is fixedly connected to a side surface of the arc-shaped plate opposite to the liquid-conducting head.

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