Obstetrical antenatal cleaning and disinfecting device

Abstract

The utility model relates to the technical field of antenatal disinfection devices, in particular to an antenatal cleaning and disinfection device for the obstetrics department, which comprises a handle and a brush head detachably arranged on the handle, a brush head seat is arranged on the brush head, the brush head seat is arranged on the handle through a clamping component, and the brush head seat comprises a mounting table. A mounting cavity formed between the inner wall of the mounting table and the brush head seat is used for mounting the brush head, a connecting plate is further arranged on the brush head seat, a communicating hole is formed in the connecting plate, a one-way circulating piece is arranged on the communicating hole, and a partition cavity is formed between the connecting plate and the mounting table, so that direct contact between the brush head and the communicating hole is avoided; according to the utility model, liquid backflow can be prevented through the one-way circulation piece, contact between polluted liquid and the one-way circulation piece is reduced through the partition cavity, disinfectant in the handle is prevented from being polluted, effectiveness and safety of the disinfectant are guaranteed, and infection risk of a puerpera is reduced.

Description

Technical Field

[0001] This application relates to the field of prenatal disinfection devices, and more particularly to a prenatal cleaning and disinfection device for obstetrics. Background Technology

[0002] Prenatal cleaning and disinfection devices are medical equipment or tool combinations designed specifically for pregnant women before delivery. They are used to perform standardized cleaning and disinfection of the birth canal and surrounding skin (such as the vulva and perianal area). The core purpose is to reduce the risk of infection during delivery and provide basic protection for maternal and infant safety. Through scientific cleaning and disinfection, an important barrier is built for maternal and infant safety. It is one of the standardized medical procedures before delivery in modern obstetrics.

[0003] Currently, a Chinese utility model patent application published on October 22, 2024, with publication number CN 221867090U, discloses a disinfection brush for obstetrics and gynecology. The brush includes a handle, a fixing block mounted on the handle, a connecting plate slidably mounted on the fixing block, a push plate mounted on the connecting plate, and a drive plate mounted on the other end of the push plate. A liquid storage tank is mounted on the handle, and the drive plate is slidably mounted on the inner wall of the liquid storage tank. This utility model, through the design of the connecting pipe, adapter box, liquid storage tank, and drive plate, allows for convenient cleaning of the vulva by simply pressing the handle inwards with a finger, causing the pressing plate to move inwards. The pressing plate drives the transmission rod to rotate, which in turn drives the push plate forward. The push plate then drives the drive plate to press forward within the liquid storage tank, thus easily squeezing the disinfectant solution from the tank onto the brush head for use. This design is not only simple in structure and convenient in operation, but also saves doctors cleaning time.

[0004] In related technologies, gynecological disinfection brushes, while squeezing disinfectant from the reservoir onto the brush head, suffer from unavoidable reverse flow of liquid between the brush head and the reservoir during actual operation and subsequent treatment. When medical staff press the brush head for local cleaning, the disinfectant inside the brush head is squeezed, creating a reverse pressure difference in the connection channel between the brush head and the reservoir. Since the supply channel lacks an anti-backflow structure, the disinfectant that has come into contact with the skin and mucous membranes flows back into the reservoir, mixing with unused clean disinfectant. This results in an exchange of contaminated and clean liquid. The next time these pre-contaminated brush heads come into contact with the pregnant woman's skin and mucous membranes, they cannot effectively clean and disinfect, and may even carry contaminants into the area around the birth canal, increasing the risk of vulvar inflammation and puerperal infection.

[0005] Therefore, it is necessary to propose a prenatal cleaning and disinfection device for obstetrics to solve the above problems. Utility Model Content

[0006] This application provides a prenatal cleaning and disinfection device for obstetrics, which aims to improve the technical problems existing in related technologies, such as reverse flow of liquid between the brush head and the storage tank, mixing with unused clean disinfectant in the tank, forming an exchange of contaminated liquid and clean liquid, which cannot achieve cleaning and disinfection, and may also bring contaminants into the area around the birth canal, increasing vulvar inflammation.

[0007] This application provides an obstetric prenatal cleaning and disinfection device, including a handle and a brush head detachably mounted on the handle. The brush head is provided with a brush head seat, which is mounted on the handle via a snap-fit ​​assembly. The brush head seat includes a mounting platform, and an mounting cavity formed between the inner wall of the mounting platform and the brush head seat is used to mount the brush head. The brush head seat is also provided with a connecting plate, which has a connecting hole with a unidirectional flow element. A partition cavity is provided between the connecting plate and the mounting platform to prevent direct contact between the brush head and the connecting hole and to prevent reverse flow of liquid between the brush head and the handle.

[0008] The technical solutions described above in this application embodiment have at least the following technical effects: during the use of the obstetric prenatal disinfection device, the brush head seat and brush head are detachably and replaceably connected by the handle, and disinfectant is introduced through the connecting hole on the connecting plate connected to the handle. The one-way flow component prevents liquid backflow, while the isolation cavity reduces the contact between contaminated liquid and the one-way flow component, preventing the disinfectant in the handle from being contaminated, ensuring the effectiveness and safety of the disinfectant, and reducing the risk of infection for the mother.

[0009] In this embodiment, the unidirectional flow element is a unidirectional valve structure.

[0010] Through this technical solution, the core mechanism of the one-way valve structure is to allow liquid to pass through only in a preset direction (from the handle to the brush head), and to automatically close in the opposite direction (from the brush head to the handle), thus playing a key role in controlling the liquid flow in the device.

[0011] In this embodiment, the snap-fit ​​assembly includes a connecting plate disposed on the outer wall of the mounting platform, a snap-fit ​​block disposed on the connecting plate, a snap-fit ​​hole provided on the handle, and the brush head seat snaps into the snap-fit ​​hole via the snap-fit ​​block.

[0012] This technical solution enables quick connection between the brush head holder and the handle by snapping the connection between the snap-fit ​​block and the snap-fit ​​hole, facilitating the disassembly and replacement of the brush head holder and the brush head.

[0013] In this embodiment, the handle is provided with a liquid extrusion mechanism, which includes a liquid storage tank provided on the handle. The bottom of the liquid storage tank is provided with a discharge pipe, which communicates with the connecting hole. The liquid storage tank is provided with a transmission component for squeezing the disinfectant in the liquid storage tank.

[0014] This technical solution uses a transmission component to guide the disinfectant solution inside the storage tank through an outlet pipe into a connecting hole, which then enters the brush head holder. This allows for continuous replenishment of the disinfectant solution in the brush head, laying the foundation for replaceable brush heads.

[0015] In this embodiment, the handle has symmetrical transmission holes on both sides. The transmission assembly includes inclined blocks that move horizontally within the transmission holes. The inclined blocks at both ends move inward and press the transmission rod with their inclined ends. A piston plate is provided on the end of the transmission rod away from the inclined blocks for squeezing the disinfectant in the storage tank.

[0016] This technical solution uses a sloping block, where the sloping end of the block presses against the transmission rod, which in turn squeezes out the liquid from the storage tank via the piston plate, making it easy to operate.

[0017] In this embodiment, a spring reset component is provided between the two inclined blocks to facilitate the reset of the two inclined blocks after pressing.

[0018] Through this technical solution, the spring reset component is essentially an elastic reset actuator. It stores and releases energy through its own elastic deformation to provide reset power for the inclined block, directly serving the transmission component and solving the problem of the inclined block automatically returning to its original position after being pressed.

[0019] In this embodiment, the liquid storage tank is equipped with an inlet pipe and a one-way valve to facilitate the addition of disinfectant to the liquid storage tank.

[0020] This technical solution achieves a balance between two needs through the functional division of the inlet tube and the one-way valve, allowing the storage tank to be repeatedly replenished with disinfectant while blocking the contamination path through the one-way valve. Attached Figure Description

[0021] Figure 1 A three-dimensional structural diagram of the obstetric prenatal cleaning and disinfection device provided in the embodiments of this application;

[0022] Figure 2 This is an exploded structural diagram of the obstetric prenatal cleaning and disinfection device provided in the embodiments of this application;

[0023] Figure 3 This is an exploded view of the brush head holder provided in an embodiment of this application;

[0024] Figure 4A cross-sectional structural diagram of the brush head holder provided in an embodiment of this application;

[0025] Figure 5 This is a cross-sectional structural diagram of the handle provided in an embodiment of this application.

[0026] The following are the labeling elements in the figure:

[0027] 1. Handle; 11. Brush head; 12. Brush head holder; 13. Mounting platform; 14. Mounting cavity; 15. Connecting plate; 16. Connecting hole; 17. One-way flow component; 18. Partition cavity; 2. Snap-fit ​​assembly; 21. Connecting block; 22. Snap-fit ​​block; 23. Snap-fit ​​hole; 3. Extrusion liquid mechanism; 31. Liquid storage tank; 32. Outlet pipe; 33. Inlet pipe; 34. One-way valve; 35. Transmission assembly; 351. Transmission hole; 352. Inclined block; 353. Transmission rod; 354. Piston plate; 355. Spring return component. Detailed Implementation

[0028] In related technologies, gynecological disinfection brushes, while squeezing disinfectant from the reservoir onto the brush head, suffer from unavoidable reverse flow of liquid between the brush head and the reservoir during actual operation and subsequent treatment. When medical staff press the brush head for local cleaning, the disinfectant inside the brush head is squeezed, creating a reverse pressure difference in the connection channel between the brush head and the reservoir. Since the supply channel lacks an anti-backflow structure, the disinfectant that has come into contact with the skin and mucous membranes flows back into the reservoir, mixing with unused clean disinfectant. This results in an exchange of contaminated and clean liquid. The next time these pre-contaminated brush heads come into contact with the pregnant woman's skin and mucous membranes, they cannot effectively clean and disinfect, and may even carry contaminants into the area around the birth canal, increasing the risk of vulvar inflammation and puerperal infection.

[0029] Based on this, in order to improve the technical problems existing in related technologies, such as reverse flow of liquid between the brush head and the storage tank, mixing with unused clean disinfectant in the tank, forming an exchange of contaminated liquid and clean liquid, which cannot achieve cleaning and disinfection, and may also bring contaminants into the area around the birth canal, increasing vulvar inflammation, the embodiments of this application provide the following solution.

[0030] Please refer to the following: Figures 1 to 5This application provides an obstetric prenatal cleaning and disinfection device, which includes a handle 1 and a brush head 11 detachably mounted on the handle 1. The brush head 11 is provided with a brush head seat 12, which is mounted on the handle 1 via a snap-fit ​​component 2. The brush head seat 12 includes a mounting platform 13, and a mounting cavity 14 formed between the inner wall of the mounting platform 13 and the brush head seat 12 is used to mount the brush head 11. The brush head seat 12 is also provided with a connecting plate 15, which has a connecting hole 16 and a one-way flow element 17. A partition cavity 18 is provided between the connecting plate 15 and the mounting platform 13 to prevent direct contact between the brush head 11 and the connecting hole 16 and to prevent reverse flow of liquid between the brush head 11 and the handle 1.

[0031] The obstetric prenatal cleaning and disinfection device provided in this application embodiment allows for detachable and replaceable connections between the brush head holder 12 and the brush head 11 via the handle 1. Disinfectant is introduced through the connecting hole 16 on the connecting plate 15 connected to the handle 1. A one-way flow element 17 prevents backflow of the liquid, while a partition cavity 18 reduces contact between contaminated liquid and the one-way flow element 17, preventing contamination of the disinfectant within the handle 1 and ensuring the effectiveness and safety of the disinfectant, thus reducing the risk of infection for the mother. In this way, the one-way flow element 17 on the connecting hole 16 ensures that liquid flows only from one end of the handle 1 to one end of the brush head 11, preventing contaminated liquid or excess disinfectant from flowing back into the handle 1 or the disinfectant storage area, thus preventing contamination of the disinfectant within the handle 1, ensuring the effectiveness and safety of the disinfectant, and reducing the risk of infection for the mother. The partition cavity 18 separates the brush head 11 from the connecting hole 16, preventing the brush head 11 from directly contacting the connecting hole 16 and reducing the possibility of external contamination of the brush head 11.

[0032] In this embodiment, the one-way flow element 17 is a one-way valve structure.

[0033] With this configuration, the core mechanism of the one-way valve structure is to allow liquid to pass only in a preset direction (from handle 1 to brush head 11), and automatically close in the opposite direction (from brush head 11 to handle 1), playing a key role in controlling the liquid flow in the device. The positive pressure generated by the liquid pushes open the leaflets of the one-way valve, allowing the disinfectant to flow smoothly to the brush head 11 through the connecting hole 16. This process requires no additional operation; the valve opening is triggered solely by the liquid's own pressure, ensuring that the brush head 11 can continuously and stably obtain disinfectant during disinfection, avoiding any impact on the disinfection effect due to interrupted liquid supply.

[0034] In this embodiment, the snap-fit ​​assembly 2 includes a connecting plate 15 disposed on the outer wall of the mounting platform 13, a snap-fit ​​block 22 disposed on the connecting plate 15, a snap-fit ​​hole 23 provided on the handle 1, and the brush head seat 12 snaps into the snap-fit ​​hole 23 through the snap-fit ​​block 22.

[0035] This design allows for quick connection between the brush head holder 12 and the handle 1 via the snap-fit ​​connection between the snap-fit ​​block 22 and the snap-fit ​​hole 23, facilitating the disassembly and replacement of the brush head holder 12 and the brush head 11. The snap-fit ​​assembly 2 has a simple structure: the connecting plate 15 is a smooth plane, the snap-fit ​​block 22 is a solid structure without grooves, and the snap-fit ​​hole 23 is a straight hole with a smooth inner wall, eliminating threaded gaps, bolt holes, and grooves that could easily trap dirt. For the reusable handle 1, during subsequent cleaning and disinfection, water or disinfectant can completely cover all surfaces of the snap-fit ​​assembly 2, leaving no residue.

[0036] In this embodiment, a liquid extrusion mechanism 3 is provided on the handle 1. The liquid extrusion mechanism 3 includes a liquid storage tank 31 provided on the handle 1. A discharge pipe 32 is provided at the bottom of the liquid storage tank 31. The discharge pipe 32 is connected to the connecting hole 16. A transmission component 35 is provided on the liquid storage tank 31 for squeezing the disinfectant in the liquid storage tank 31.

[0037] This configuration allows the disinfectant solution inside the storage tank 31 to be discharged through the outlet tube 32 into the connecting hole 16 via the transmission component 35, and then into the brush head holder 12. This ensures that the disinfectant solution in the brush head 11 can be replenished continuously, providing a basis for the replacement of the brush head 11. In obstetric delivery rooms, disinfection requires immediate response. For example, disinfection needs to be completed quickly after the cervix is ​​fully dilated. If disinfectant solution is taken on the spot before each disinfection, it is not only cumbersome but also prone to contamination due to exposure during the pouring process. The storage tank 31 can pre-store a fixed amount of sterile disinfectant solution, essentially providing a small built-in sterile storage compartment. Medical staff do not need to prepare additional disinfectant containers; they can use the device immediately, significantly shortening disinfection preparation time and adapting to the efficient and emergency response rhythm of the delivery room.

[0038] In this embodiment, the handle 1 has symmetrical transmission holes 351 on both sides. The transmission assembly 35 includes inclined blocks 352 that move horizontally within the transmission holes 351. The inclined blocks 352 move inward at both ends, and their inclined ends press the transmission rod 353. A piston plate 354 is provided on the end of the transmission rod 353 away from the inclined blocks 352, which is used to squeeze the disinfectant in the storage tank 31.

[0039] This configuration allows for easy operation. By pressing the inclined block 352, the inclined end of the block 352 drives the transmission rod 353, which in turn squeezes the liquid out of the reservoir 31 via the piston plate 354. Thus, through the force transmission and conversion system, the mechanical structure transforms the hand movements of medical staff pressing the inclined block 352 into the linear motion of the piston plate 354, squeezing the reservoir 31 and ultimately squeezing out the disinfectant. During obstetric disinfection, medical staff need to hold the device with one hand for disinfection while using the other hand to assist in stabilizing the mother's position. The operation of this transmission component 35 is perfectly suited for single-handed operation.

[0040] In this embodiment, a spring reset member 355 is provided between the two inclined blocks 352 to facilitate the reset of the two inclined blocks 352 after pressing.

[0041] With this configuration, the spring reset component 355 is essentially an elastic reset actuator. It stores and releases energy through its own elastic deformation to provide reset power for the inclined block 352, directly serving the transmission component 35 and solving the problem of the inclined block 352 automatically returning to its original position after pressing. Thus, the core operation scenario for obstetric disinfection is a one-handed operation. If reset requires manual completion, it would disrupt the rhythm of one-handed integrated operation and increase operational complexity.

[0042] In this embodiment, an inlet pipe 33 is provided on the liquid storage tank 31, and a one-way valve 34 is provided on the inlet pipe 33 to facilitate the addition of disinfectant to the liquid storage tank 31.

[0043] This design, with its functional division of labor, balances the needs of both sides by integrating the inlet tube 33 and the one-way valve 34. It allows the reservoir 31 to be repeatedly replenished with disinfectant while simultaneously blocking contamination pathways via the one-way valve 34. If the reservoir 31 were designed as a single-use, non-refillable type, the entire reservoir 31 would need to be discarded after each use, significantly increasing the consumable costs for medical institutions, especially given the high frequency of disinfection in delivery rooms. The design of the inlet tube 33 and the one-way valve 34 allows the reservoir 31 to be replenished and reused multiple times.

[0044] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A prenatal cleaning and disinfection device for obstetrics, comprising a handle (1) and a brush head (11) detachably mounted on the handle (1), characterized in that: The brush head (11) is provided with a brush head seat (12), which is mounted on the handle (1) via a snap-fit ​​assembly (2). The brush head seat (12) includes a mounting platform (13). The mounting cavity (14) formed between the inner wall of the mounting platform (13) and the brush head seat (12) is used to mount the brush head (11). The brush head seat (12) is also provided with a connecting plate (15). The connecting plate (15) has a connecting hole (16) and a unidirectional flow element (17) is provided on the connecting hole (16). A partition cavity (18) is provided between the connecting plate (15) and the mounting platform (13) to prevent direct contact between the brush head (11) and the connecting hole (16) and to prevent reverse flow of liquid between the brush head (11) and the handle (1).

2. The obstetric prenatal cleaning and disinfection device according to claim 1, characterized in that: The unidirectional flow element (17) is a unidirectional valve structure.

3. The obstetric prenatal cleaning and disinfection device according to claim 1, characterized in that: The snap-fit ​​assembly (2) includes a connecting block (21) disposed on the outer wall of the mounting platform (13), a snap-fit ​​block (22) disposed on the connecting block, a snap-fit ​​hole (23) provided on the handle (1), and the brush head seat (12) snaps into the snap-fit ​​hole (23) through the snap-fit ​​block (22).

4. A prenatal cleaning and disinfection device for obstetrics according to claim 1, 2, or 3, characterized in that: The handle (1) is provided with a liquid extrusion mechanism (3), which includes a liquid storage tank (31) provided on the handle (1). The bottom of the liquid storage tank (31) is provided with an outlet pipe (32), which is connected to the connecting hole (16). The liquid storage tank (31) is provided with a transmission component (35) for squeezing the disinfectant in the liquid storage tank (31).

5. The obstetric prenatal cleaning and disinfection device according to claim 4, characterized in that: The handle (1) has symmetrical transmission holes (351) on both sides. The transmission assembly (35) includes a ramp (352) that moves horizontally within the transmission hole (351). The ramps (352) move inward at both ends, and their ramp ends press the transmission rod (353). A piston plate (354) is provided on one end of the transmission rod (353) away from the ramp (352) for squeezing the disinfectant in the storage tank (31).

6. The obstetric prenatal cleaning and disinfection device according to claim 5, characterized in that: A spring reset member (355) is provided between the two inclined blocks (352) to facilitate the reset of the two inclined blocks (352) after pressing.

7. The obstetric prenatal cleaning and disinfection device according to claim 5, characterized in that: The liquid storage tank (31) is provided with an inlet tube (33), and the inlet tube (33) is provided with a one-way valve (34) to facilitate the addition of disinfectant to the liquid storage tank (31).

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