Hysteroscope uterine distention liquid collector

Abstract

The invention discloses a hysteroscope uterine distention liquid collector which comprises a collecting basin and further comprises a waste liquid collecting device which is arranged below the collecting basin, connected with the collecting basin through a pipeline and used for collecting liquid flowing back in the collecting basin when a large amount of uterine distention liquid is used for flushing a uterine cavity, and the liquid is prevented from overflowing from the collecting basin; the supporting and attaching device is arranged on one side of the collecting basin and connected with the collecting basin in a clamped mode, and the supporting and attaching device can support the collecting basin; according to the device, the collecting basin is combined with the waste liquid collecting device, and is effectively connected with the collecting bag of the disposable drape, so that liquid collected by the collecting bag and the collecting basin of the drape in a hysteroscope operation can be collected. Due to the design of the transparent observation window and the scale marks, medical staff can visually and accurately measure the total dosage of the uterine distention liquid. By means of the accurate liquid amount measuring mode, the risk of water poisoning caused by inaccurate liquid amount statistics can be effectively avoided, and the safety of an operation is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a hysteroscopic distension fluid collector. Background Technology

[0002] The use of distending fluid is essential during hysteroscopic surgery. It is primarily used to dilate the uterine cavity, allowing doctors to more clearly observe the internal condition of the uterus for effective diagnosis and treatment. Hysteroscopic surgery, as a minimally invasive procedure, is widely used in gynecology due to its advantages of minimal trauma and rapid recovery. The proper use and effective collection of distending fluid during the procedure are crucial for the smooth progress of the surgery and the safety of the patient.

[0003] However, the collection and measurement of distension fluid in existing hysteroscopic surgeries present numerous problems. On the one hand, while the "urological and gynecological lithotomy drape" used in surgery provides some concealment and collection, the amount of fluid collected in its collection bag is difficult to measure accurately, and it cannot be statistically summarized with the fluid in the collection basin. On the other hand, traditional collection basins, lacking effective support and sealing design, are prone to leakage, which not only contaminates the surgical environment but may also affect the normal progress of the surgery. Furthermore, existing collection devices do not conform well to the patient's body, resulting in lower patient comfort during surgery and potentially causing discomfort due to lumbar spine suspension. These problems not only increase the risks of the surgery but also inconvenience medical staff. Therefore, a hysteroscopic distension fluid collector is proposed. Summary of the Invention

[0004] To address the problems of fluid leakage, contamination of the surgical environment, and difficulty in accurately measuring the amount of fluid collected in traditional hysteroscopic surgery using distension fluid collection devices, as well as the issues of simple structure, inability to adapt to the patient's body curves, and low waste fluid collection efficiency in some existing collection devices, this invention provides a hysteroscopic distension fluid collector.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution: A hysteroscopic distension fluid collector includes a collection basin, and the distension fluid collector further includes: The waste liquid collection device is located below the collection basin and connected to the collection basin through a pipeline. It is used to collect the liquid that flows back into the collection basin when the uterine cavity is expanded with distending fluid, so as to prevent the liquid from overflowing from the collection basin. The support fitting device is set on one side of the collection basin and snaps into the collection basin. The support fitting device can provide support for the collection basin, enhance the strength of the collection basin, and can conform to the patient's lumbar curve, providing support to the lumbar spine when the patient is lying down. The negative pressure auxiliary device is located below the collection basin. It is connected to the waste liquid collection device through a pipeline and is used to create a negative pressure inside the waste liquid collection device to help the waste liquid collection device better absorb the distending fluid in the collection basin.

[0006] Preferably, the collection basin has a collection groove.

[0007] Preferably, the upper surface of the collection basin has buttock-shaped grooves on both sides.

[0008] Preferably, the collection basin has a card interface on one side.

[0009] Preferably, the waste liquid collection device includes: Collection box, located below the collection basin; The first hose quick connector is fixedly installed on one side of the collection basin; The first connecting pipe has one end fixedly installed inside the inner wall of the collection trough on the collection basin, and the other end fixedly connected to the first flexible hose quick connector. The second hose quick connector is fixedly installed on the first hose quick connector, and the second hose quick connector is located on the upper part of one side of the first hose quick connector; The second connecting pipe is snapped into the first hose quick connector and the second hose quick connector at both ends.

[0010] Preferably, the waste liquid collection device further includes: The lid is installed on top of the collection box; Buckles are installed on the four sides of the collection box, and the collection box is connected to the lid by the buckles. The collection port is located on the box cover and is connected to the collection box. A threaded cap is threaded onto the collection port.

[0011] Preferably, the waste liquid collection device further includes: A transparent observation window is located on one side of the collection box. The transparent observation window is made of at least one of the following materials: glass, transparent plastic, and acrylic sheet.

[0012] Preferably, the support and bonding device includes: The buttock pad has a pad groove on its upper surface and a snap-fit ​​groove on one side. The lumbar pad is installed on one side of the hip pad. A rubber pad is fixedly installed on the lumbar pad. The upper surface of the rubber pad has an arc shape that fits the human waist. The connecting block is fixedly connected to the buttock pad and the waist pad at both ends, and the width of the connecting block is the same as the width of the card interface.

[0013] Preferably, the negative pressure assist device includes: The vacuum pump is located below the collection basin and is connected to the mains power supply during operation. The third hose quick connector is fixedly installed on the box cover; The third connecting pipe has one end snapped into the air outlet of the vacuum pump and the other end snapped into the quick connector of the third hose.

[0014] Preferably, the negative pressure auxiliary device further includes: A baffle is slidably installed inside the collection box. Limiting blocks are fixedly installed on both sides of the baffle. The limiting groove is located on the inner wall of both sides of the collection box, and the baffle is slidably installed in the limiting groove through the limiting block.

[0015] The beneficial effects of this invention are as follows: This device combines a collection basin with a waste fluid collection unit, and effectively connects to a disposable draped collection bag, enabling the collection of fluids gathered during hysteroscopic surgery via the draped collection bag and basin. The transparent viewing window and graduated markings allow medical staff to visually and accurately measure the total volume of distension fluid. This precise fluid measurement method effectively avoids the risk of water intoxication due to inaccurate fluid volume calculations, significantly improving surgical safety.

[0016] This device features a uniquely designed support system. Its hip and lumbar pads conform to the curves of the patient's hips and lower back, providing comfortable support. During surgery, the patient can lie more naturally, avoiding discomfort caused by elevated hips and an unsupported lumbar spine. This human-centered design not only improves patient comfort but also reduces surgical interference that may result from patient discomfort, contributing to a smoother surgical procedure.

[0017] This device, through its negative pressure assist and baffle design, effectively prevents fluid from overflowing from the collection basin when the uterine cavity is expanded by the distending fluid. The negative pressure assist quickly draws the fluid from the collection tank into the waste fluid collection box, while the baffle prevents fluid from being sucked into the vacuum pump, ensuring the stability and safety of the collection process. This design not only improves the efficiency of fluid collection but also reduces contamination of the surgical environment and lowers surgical risks. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the device used by the patient according to the present invention; Figure 2 This is a three-dimensional structural diagram showing the placement of the device when the present invention is in use; Figure 3 This is a schematic diagram of the top-view axial side three-dimensional structure of the front collection basin of the present invention; Figure 4This is a three-dimensional structural diagram of the bottom view axis of the front collection basin of the present invention; Figure 5 This is a three-dimensional structural diagram of the support and bonding device of the present invention; Figure 6 This is a cross-sectional structural schematic diagram of the waste liquid collection device of the present invention; Figure 7 This is a structural schematic diagram of the collection box and baffle of the present invention; Figure 8 This is a partial three-dimensional schematic diagram of the negative pressure auxiliary device of the present invention.

[0019] Reference numerals: 1. Collection basin; 2. Waste liquid collection device; 3. Support and fitting device; 4. Negative pressure auxiliary device; 5. Collection trough; 6. Buttock recess; 7. Snap-fit ​​interface; 20. First hose quick connector; 21. First connecting pipe; 22. Second hose quick connector; 23. Second connecting pipe; 24. Collection box; 25. Buckle; 26. Transparent observation window; 27. Box cover; 28. Collection port; 29. ​​Threaded cap; 30. Buttock pad; 31. Pad groove; 32. Snap-fit ​​groove; 33. Connecting block; 34. Waist pad; 35. Rubber pad; 40. Vacuum pump; 41. Third hose quick connector; 42. Third connecting pipe; 43. Baffle; 44. Limiting block; 45. Limiting groove. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0022] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0025] Example 1: Refer to Figures 1-8 A hysteroscopic distension fluid collector, comprising a collection basin 1, and further comprising: Waste liquid collection device 2 is set below the collection basin 1 and connected to the collection basin 1 through a pipeline. It is used to collect the liquid that flows back into the collection basin 1 when the uterine cavity is expanded with distending fluid, so as to prevent the liquid from overflowing from the collection basin 1. The support fitting device 3 is set on one side of the collection basin 1 and snapped into the collection basin 1. The support fitting device 3 can provide support for the collection basin 1, enhance the strength of the collection basin 1, and the support fitting device 3 can fit the patient's lumbar curve and provide support to the lumbar spine when the patient is lying down. The negative pressure auxiliary device 4 is located below the collection basin 1. The negative pressure auxiliary device 4 is connected to the waste liquid collection device 2 through a pipeline. It is used to create a negative pressure inside the waste liquid collection device 2 to help the waste liquid collection device 2 better absorb the distending fluid in the collection basin 1.

[0026] To enable the collection basin 1 to collect the distending fluid that flows back from the vulva during hysteroscopy, the collection basin 1 has a collection groove 5, and the upper surface of the collection basin 1 has buttock grooves 6 on both sides. The collection basin 1 also has a locking interface 7 on one side. The supporting and fitting device 3 includes: a buttock pad 30, the upper surface of which has a pad groove 31, and a locking groove 32 on one side; a waist pad 34, which is installed on one side of the buttock pad 30, and a rubber pad 35 is fixedly installed on the waist pad 34. The upper surface of the rubber pad 35 has a cross-sectional profile that conforms to the human waist; and a connecting block 33, which is fixedly connected to the buttock pad 30 and the waist pad 34 at both ends. The width of the connecting block 33 is the same as the width of the locking interface 7.

[0027] This device is injection molded using plastic granules. The wall thickness of the collection basin 1 is relatively thin, and the buttock groove 6 on the collection basin 1 can conform to the protruding contour of the human buttock.

[0028] When in use, the entire support fitting device 3 is covered with a disposable sterile bag, or its surface can be covered with a sterile cloth. The buttock pad 30 is snapped into the collection basin 1 through the bottom of the collection basin 1. After snapping, the pad groove 31 on the buttock pad 30 fits into the bottom protrusion of 15. The connecting block 33 is located in the snap interface 7, and the waist pad 34 is located on one side of the collection basin 1.

[0029] The patient is placed in the lithotomy position with their hips raised. The support fitting device 3 and the collection basin 1 are placed under the patient, and the waste fluid collection device 2 is placed under the operating table. The collection groove 5 on the collection basin 1 is located near the patient's legs, and the lumbar support block 34 is located near the patient's waist. The patient's genitals should be suspended directly above the collection groove 5. During placement, the patient's hips are positioned within the hip groove 6. The groove shape of the hip groove 6 can accommodate the protruding contour of the patient's hips. When the patient's hips are pressed against the collection basin 1, it allows for a closer fit between the patient and the basin, increasing the patient's comfort when using the device. At the same time, the patient's waist should be positioned on the lumbar support block 34. The arc contour of the lumbar support block 34 can adapt to the lumbar curve of the human lumbar spine, providing support for the patient's lumbar spine. This allows the patient to lie more comfortably and naturally during examinations and surgeries, preventing discomfort caused by the lumbar spine being suspended when the hips are raised. The buttock pad 30, connecting block 33, and lumbar pad 34 are solid blocks. Making them solid increases their strength, ensuring they maintain good strength without deformation when pressure is applied by the patient, making them suitable for reuse. The collection basin 1 is injection molded, and its walls are relatively thin. Since the collection basin 1 directly collects distending fluid, which is a medical contaminant, it is a disposable item to be discarded after use. Its thin walls reduce material costs during manufacturing. However, during use, the patient needs to place their buttocks on the buttock groove 6, and the buttock pad 30 provides support to the corresponding position of the collection basin 1, maintaining its reliability during use.

[0030] Since patients of different body types have different hip contours, in order to make the device suitable for people of different body types, the size of the collection basin 1 can be scaled according to the standard human hip size when designing the size, so as to manufacture collection basins 1 in three proportions: small, medium and large, making the device more applicable and able to meet the needs of more people.

[0031] Example 2: Refer to Figure 1-3 and Figure 6-7To collect waste liquid in the collection basin 1, the waste liquid collection device 2 includes: a collection box 24, located below the collection basin 1; a first quick-connect hose 20, fixedly installed on one side of the collection basin 1; a first connecting pipe 21, one end of which is fixedly installed inside the inner wall of the collection trough 5 on the collection basin 1, and the other end is fixedly connected to the first quick-connect hose 20; a second quick-connect hose 22, fixedly installed on the first quick-connect hose 20, and the second quick-connect hose 22 is located on the upper part of one side of the first quick-connect hose 20; and a second connecting pipe 23, both ends of which are respectively snapped into the first quick-connect hose 20 and the second quick-connect hose 22. The waste liquid collection device 2 also includes: a box cover 27, installed above the collection box 24; buckles 25, installed on the four sides of the collection box 24, the collection box 24 being snapped into the box cover 27 via the buckles 25; and a collection port 28, located on the box cover 27, communicating with the collection box 24, with a threaded cap 29 threaded onto the collection port 28. The waste liquid collection device 2 also includes a transparent observation window 26, which is set on one side of the collection box 24. The transparent observation window 26 is made of at least one of glass, transparent plastic and acrylic sheet.

[0032] The second connecting pipe 23 is connected to the first hose quick connector 20 and the second hose quick connector 22, and the collection box 24 is fixed to the box cover 27 by the buckle 25. When the doctor uses distending fluid to dilate the patient's uterine cavity, the backflowing liquid overflows from the patient's vulva and falls into the collection tank 5 on the collection basin 1 for collection. The recycled waste liquid collected in the collection tank 5 will flow into the collection box 24 through the second connecting pipe 23 for collection, which can prevent the liquid in the collection tank 5 from overflowing. A size marking scale line is provided on one side of the transparent observation window 26. The scale line is set according to the capacity of the collection box. The doctor can judge the amount of liquid collected in the box by the transparent observation window 26 and the marking scale line. The other features are the same as in Embodiment 1.

[0033] Example 3: Refer to Figure 1-3 and Figure 8 To prevent the distending fluid from overflowing from the collection basin 1 when using distending fluid to expand the uterine cavity, the negative pressure auxiliary device 4 includes: a vacuum pump 40, which is located below the collection basin 1 and is connected to the mains power supply during operation; a third hose quick connector 41, which is fixedly installed on the box cover 27; and a third connecting pipe 42, one end of which is snapped into the air outlet of the vacuum pump 40 and the other end of which is snapped into the third hose quick connector 41. The negative pressure auxiliary device 4 also includes: a baffle 43, which is slidably installed inside the collection box 24; a limiting block 44, which is fixedly installed on both sides of the baffle 43; and a limiting groove 45, which is formed on the inner walls of both sides of the collection box 24, and the baffle 43 is slidably installed in the limiting groove 45 through the limiting block 44.

[0034] When a doctor needs to use distending fluid to dilate the uterine cavity for hysteroscopic surgery, due to the large fluid flow rate, in order to ensure that the waste fluid collected in the collection tank 5 can be quickly collected into the collection box 24, before snapping the box cover 27 during the previous step of installing the waste fluid collection device 2, the baffle 43 needs to be installed into the collection box 24 simultaneously, and the third connecting pipe 42 needs to be connected to the air outlet of the vacuum pump 40 and the third hose quick connector 41. After the vacuum pump 40 is connected to the mains power, the vacuum pump 40 will start working. When the vacuum pump 40 is working, it will generate negative pressure, which will suck the air in the collection box 24. After the collection box 24 is snapped into the box cover 27, a relatively sealed space will be formed inside the collection box 24. In order to ensure its airtightness, the box cover 27 can be connected to the collection box 24. A sealing ring is installed at the contact point. Since the collection box 24 has only one outlet connected to the outside, namely the second hose quick connector 22 and the second connecting pipe 23, in order to maintain air pressure balance, when a negative pressure is generated inside the collection box 24, the collection box 24 will draw in external gas through the second connecting pipe 23 and the first connecting pipe 21 to maintain air pressure balance. When a large amount of distending fluid is used for flushing, the first connecting pipe 21 located at one end of the collection tank 5 will generate negative pressure to assist in the rapid suction of the liquid in the collection tank 5 into the collection box 24. Thus, the negative pressure assist device 4 can accelerate the flow of liquid in the collection tank 5 into the collection box 24, thereby ensuring that the liquid in the collection tank 5 can quickly enter the collection box 24 when flushing the uterine cavity with a large amount of distending fluid, thus preventing the liquid in the collection tank 5 from overflowing. The installation of the baffle 43 can block the liquid entering the collection box 24 through the second connecting pipe 23, preventing the vacuum pump 40 from sucking in waste liquid when it is working. The remaining features are the same as in Embodiment 1.

[0035] Example 4: Refer to Figure 1-3 and Figure 8 When using this device, the doctor can use an existing "urological and gynecological lithotomy drape" to cover the patient's examination area. This disposable drape is specifically designed to cover the patient's entire body and has an examination port aligned with the patient's genitals. A funnel-shaped collection bag is attached to the bottom of the examination port. Its shape and structure are similar to the 3M Steri-Drape 1081 urological surgical drape from 3M Healthcare. Of course, other medical companies also widely produce surgical drapes with similar structures; as long as the principle and method of use are the same, they can all be used with this device.

[0036] In the existing procedure, after the drape is laid out, it will cover the patient's entire legs and body. Before the procedure, the doctor will place a measuring bucket under the funnel collection bag and put the end of the collection bag into the measuring bucket. When the doctor uses distending fluid to dilate the uterine cavity, some of the fluid will flow through the hysteroscopy return tube into the collection bag outside the drape, and the other part of the fluid will overflow and flow along the patient's skin into the collection basin 1.

[0037] To facilitate the summing of fluids collected in the collection bag and collection basin 1, allowing doctors to accurately determine fluid dosage and prevent water intoxication, the funnel-shaped collection bag is secured as usual after the drape is laid out. However, the tail end of the collection bag is placed inside the collection opening 28. This allows the fluids collected through the bag to flow into the collection container 24, and the fluids collected in collection basin 1 to also accumulate in the collection container 24. The doctor can then determine the total fluid volume using the scale markings on one side of the transparent viewing window.

[0038] When collecting distending fluid in this way, a portion will flow through the hysteroscopy reflux port into the collection bag set on the outside of the drape, and then be collected into the collection box 24 through the collection bag. The other portion of the overflowing fluid will fall into the collection basin 1. At this time, the fluid flow in the collection basin 1 is relatively small, so it is not necessary to turn on the negative pressure auxiliary device 4. If the drape and collection bag are not used, and only the collection basin 1 is used, the threaded cap 29 needs to be installed on the collection port 28 to ensure that the box is sealed. The other features are the same as in Embodiment 1.

[0039] Working principle: This device is injection molded using plastic granules. The wall thickness of the collection basin 1 is relatively thin, and the buttock groove 6 on the collection basin 1 can fit the protruding contour of the human buttock.

[0040] When in use, the entire support fitting device 3 is covered with a disposable sterile bag, or its surface can be covered with a sterile cloth. The buttock pad 30 is snapped into the collection basin 1 through the bottom of the collection basin 1. After snapping, the pad groove 31 on the buttock pad 30 fits into the bottom protrusion of 15. The connecting block 33 is located in the snap interface 7, and the waist pad 34 is located on one side of the collection basin 1.

[0041] The patient lies supine with their buttocks raised. The support device 3 and collection basin 1 are placed under the patient, and the waste fluid collection device 2 is placed under the operating table. The collection groove 5 on the collection basin 1 is located near the patient's legs, and the lumbar support block 34 is located near the patient's waist. The patient's genitals should be suspended directly above the collection groove 5. During placement, the patient's buttocks are positioned within the buttock recess 6. The shape of the buttock recess 6 accommodates the protruding contour of the patient's buttocks. When the patient's buttocks are pressed against the collection basin 1, it allows for a closer fit between the patient and the basin, increasing the patient's comfort when using the device. Simultaneously, the patient's waist should be positioned on the lumbar support block 34. The curved contour of the lumbar support block 34 adapts to the lumbar curve of the human spine, providing support for the patient's lumbar spine. This allows the patient to lie more comfortably and naturally during examinations and surgeries, preventing discomfort caused by the lumbar spine being unsupported after the buttocks are raised. The buttock pad 30, connecting block 33, and lumbar pad 34 are solid blocks. Making them solid increases their strength, ensuring they maintain good strength without deformation when pressure is applied by the patient, making them suitable for reuse. The collection basin 1 is injection molded, and its walls are relatively thin. Since the collection basin 1 directly collects distending fluid, which is a medical contaminant, it is a disposable item to be discarded after use. Its thin walls reduce material costs during manufacturing. However, during use, the patient needs to place their buttocks on the buttock groove 6, and the buttock pad 30 provides support to the corresponding position of the collection basin 1, maintaining its reliability during use.

[0042] The second connecting pipe 23 is connected to the first hose quick connector 20 and the second hose quick connector 22, and the collection box 24 is fixed to the box cover 27 by the buckle 25. When the doctor uses distending fluid to dilate the patient's uterine cavity, the backflowing liquid overflows from the patient's vulva and falls into the collection tank 5 on the collection basin 1 for collection. The waste liquid collected in the collection tank 5 will flow into the collection box 24 through the second connecting pipe 23 for collection, which can prevent the liquid in the collection tank 5 from overflowing.

[0043] When a doctor needs to use a large amount of fluid to flush the patient's uterine cavity, due to the large fluid flow, in order to ensure that the waste fluid collected in the collection tank 5 can be quickly collected into the collection box 24, before snapping the box cover 27 during the previous step of installing the waste fluid collection device 2, the baffle 43 needs to be installed into the collection box 24 simultaneously, and the third connecting pipe 42 needs to be connected to the air outlet of the vacuum pump 40 and the third hose quick connector 41. After the vacuum pump 40 is connected to the mains power, the vacuum pump 40 will start working. When the vacuum pump 40 is working, it will generate negative pressure, which will suck the air in the collection box 24. After the collection box 24 is snapped into the box cover 27, a relatively sealed space will be formed inside the collection box 24. In order to ensure its airtightness, the box cover 27 can be connected to the collection box 24. A sealing ring is installed at the contact point. Since the collection box 24 only has one outlet connected to the outside, namely the second hose quick connector 22 and the second connecting pipe 23, in order to maintain air pressure balance inside the collection box 24, when negative pressure is generated inside the collection box 24, the collection box 24 will draw in external gas through the second connecting pipe 23 and the first connecting pipe 21 to maintain air pressure balance. When a large amount of distending fluid is used for flushing, the first connecting pipe 21 located at one end of the collection tank 5 will generate negative pressure to assist in the rapid suction of the liquid in the collection tank 5 into the collection box 24. Thus, the negative pressure assist device 4 can accelerate the flow of liquid in the collection tank 5 into the collection box 24, thereby ensuring that the liquid in the collection tank 5 can quickly enter the collection box 24 when flushing the uterine cavity with a large amount of distending fluid, thus preventing the liquid in the collection tank 5 from overflowing. The installation of the baffle 43 can block the liquid entering the collection box 24 through the second connecting pipe 23, preventing the vacuum pump 40 from sucking in waste liquid when it is working.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A hysteroscopic distension fluid collector, comprising a collection basin (1), characterized in that: The distending fluid collector also includes: Waste liquid collection device (2) is set below the collection basin (1) and connected to the collection basin (1) through a pipeline. It is used to collect the liquid that flows back into the collection basin (1) when the uterine cavity is flushed with a large amount of distending fluid, so as to prevent the liquid from overflowing from the collection basin (1). The support fitting device (3) is set on one side of the collection basin (1) and snapped into the collection basin (1). The support fitting device (3) can provide support for the collection basin (1), enhance the strength of the collection basin (1), and the support fitting device (3) can fit the patient's lumbar curve and provide support for the lumbar spine when the patient is lying down. The negative pressure auxiliary device (4) is set below the collection basin (1). The negative pressure auxiliary device (4) is connected to the waste liquid collection device (2) through a pipeline. It is used to create a negative pressure in the waste liquid collection device (2) to help the waste liquid collection device (2) better absorb the distending fluid in the collection basin (1).

2. The hysteroscopic distension fluid collector according to claim 1, characterized in that, The collection basin (1) has a collection trough (5).

3. A hysteroscopic distension fluid collector according to claim 2, characterized in that, The upper surface of the collection basin (1) has buttock grooves (6) on both sides.

4. A hysteroscopic distension fluid collector according to claim 3, characterized in that, The collection basin (1) has a card slot (7) on one side.

5. A hysteroscopic distension fluid collector according to claim 1, characterized in that, The waste liquid collection device (2) includes: Collection box (24) is set below collection basin (1); The first hose quick connector (20) is fixedly installed on one side of the collection basin (1); The first connecting pipe (21) is fixedly installed at one end inside the inner wall of the collection trough (5) on the collection basin (1), and the other end is fixedly connected to the first hose quick connector (20); The second hose quick connector (22) is fixedly installed on the first hose quick connector (20), and the second hose quick connector (22) is located on the upper part of one side of the first hose quick connector (20); The second connecting pipe (23) is snapped into the first hose quick connector (20) and the second hose quick connector (22) at both ends.

6. A hysteroscopic distension fluid collector according to claim 5, characterized in that, The waste liquid collection device (2) also includes: Box lid (27), box lid (27) is installed above collection box (24); Buckles (25) are installed on the four sides of the collection box (24), and the collection box (24) is connected to the lid (27) by buckles (25); The collection port (28) is set on the box cover (27). The collection port (28) is connected to the collection box (24). A threaded cap (29) is threaded on the collection port (28).

7. A hysteroscopic distension fluid collector according to claim 6, characterized in that, The waste liquid collection device (2) also includes: A transparent observation window (26) is set on one side of the collection box (24). The transparent observation window (26) is made of at least one of the following materials: glass, transparent plastic and acrylic sheet.

8. A hysteroscopic distension fluid collector according to claim 1, characterized in that, The supporting and bonding device (3) includes: The buttock pad (30) has a pad groove (31) on its upper surface and a snap-fit ​​groove (32) on one side. Waist pad (34), waist pad (34) is installed on one side of hip pad (30), and a rubber pad (35) is fixedly installed on the waist pad (34). The cross-sectional profile of the upper surface of the rubber pad (35) is an arc shape that fits the human waist. The connecting block (33) is fixedly connected to the buttock pad (30) and waist pad (34) at both ends, and the width of the connecting block (33) is the same as the width of the card interface (7).

9. A hysteroscopic distension fluid collector according to claim 1, characterized in that, The negative pressure auxiliary device (4) includes: Vacuum pump (40) is located below the collection basin (1). When working, the vacuum pump (40) is connected to the mains power. The third hose quick connector (41) is fixedly installed on the box cover (27); The third connecting pipe (42) is connected at one end to the outlet of the vacuum pump (40) and at the other end to the quick connector (41) of the third hose.

10. A hysteroscopic distension fluid collector according to claim 9, characterized in that, The negative pressure auxiliary device (4) also includes: Baffle (43) is slidably installed inside collection box (24); Limiting block (44) is fixedly installed on both sides of baffle (43); The limiting groove (45) is opened on the inner wall on both sides of the collection box (24), and the baffle (43) is slidably installed in the limiting groove (45) through the limiting block (44).

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