Liquid dressing storage device capable of avoiding cross infection

Abstract

The invention relates to the field of medical apparatus and instruments, and discloses a liquid dressing storage device capable of avoiding cross infection, the liquid dressing storage device comprises a container and an extrusion assembly, the outer surface of the container is provided with a plurality of partition grooves I, the upper end of the container is provided with a cover assembly, and the upper end of the cover assembly is provided with an upper sealing cover; the extrusion assembly is divided into an upper part and a lower part, the upper half part of the extrusion assembly is located in the container, the lower half part of the extrusion assembly is located at the lower end of the container, and a plurality of prompt assemblies are arranged on the side face of the container. According to the liquid dressing storage device capable of avoiding cross infection, a physically segmented sterile unit is achieved, a risk area is isolated through a sealing plate, the remaining amount is accurately visible by combining the positions of a transparent container, a non-transparent container and a lead screw, the functions of one-time large-amount extrusion and small-amount multi-time dipping and smearing are integrated, and the liquid dressing storage device is convenient to use and high in practicability. And diversified use requirements are met on the premise of ensuring whole-course pollution prevention.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a liquid dressing storage device to prevent cross-infection. Background Technology

[0002] Liquid dressings, medical gels, and other products often require multiple uses when caring for chronic wounds, postoperative incisions, or everyday skin wounds. Existing multi-dose packaging (such as tubes and squeeze bottles) exposes the contents to air after the first opening. Each time the product is squeezed out, microorganisms from the air can easily flow back into the container, contaminating the remaining product and posing a high risk of cross-infection. This is particularly dangerous for patients with weakened immune systems or large wounds. To address this issue, the industry has proposed several packaging solutions with backflow prevention features. For example: In patent application CN101389542A, a flexible bag-like structure is included, which defines a variable-volume storage cavity sealed relative to the ambient atmosphere for storing multiple portions of material under sterile conditions; and a one-way valve including a valve body and a valve cover, the valve body defining an axially extending valve seat and at least one flow hole extending through at least one of the valve body and valve seat, the valve cover being mounted on the valve body and including an axially extending portion formed of an elastic material, the axially extending portion stacking on the valve seat and covering a substantially axially extending portion of the valve seat, wherein the valve portion defines a predetermined radial thickness and interferes with the valve seat. The valve portion and valve seat define an axially extending slit therebetween, forming a normally closed axially extending valve opening. The valve portion is radially movable between: a normally closed position, in which the valve portion engages with the valve seat, and an open position, in which at least one section of the valve portion is radially spaced from the valve seat to connect the valve opening to the at least one flow hole in fluid communication, thereby allowing material within the variable volume storage chamber to pass through the valve opening. In both the normally closed and open positions, the one-way valve keeps the remaining material in the variable volume storage chamber under sterile conditions and sealed relative to the ambient atmosphere. An advantage of the present invention is that the one-way valve assembly can hermetically seal the product within the variable volume storage chamber throughout its shelf life and multiple dispensings. Therefore, non-acidic products, such as dairy products, do not require refrigeration during their shelf life or use. Other advantages of the present invention will become readily apparent from the following detailed description and accompanying drawings. Therefore, non-acidic products, such as dairy products, do not require refrigeration during their shelf life or use. Other advantages of the apparatus and method of the present invention will become readily apparent from the following detailed description and accompanying drawings.

[0003] In the prior art, including the aforementioned patents, it has been found in practical applications that such prior art based on flexible bags and one-way valves still has the following limitations: Difficulty in determining remaining product quantity: Flexible bags are usually placed inside an opaque shell, making it impossible for users to visually and accurately determine the remaining product dosage. This can easily lead to the product being used up suddenly during the treatment process, affecting the continuity of treatment, or being discarded before it is used up, resulting in waste.

[0004] Ease of use and limited functionality: These devices typically only provide the function of squeezing the product onto dressings or hands for application, failing to effectively integrate it with the wound application process itself. For scenarios requiring small, precise applications (such as superficial abrasions or catheter fixation site care), the operation remains cumbersome, and secondary contact may cause contamination.

[0005] Insufficient adaptability: Its structural design makes it difficult to achieve flexible and controllable dose division and management between "single large-volume extrusion" and "multiple micro-applications". It cannot meet the advanced infection control requirements in clinical practice of "multiple applications with each application ensuring sterility of the used portion".

[0006] Therefore, there is an urgent need for an improved liquid dressing storage device that not only ensures core sterility during multiple uses, but also enables visibility of remaining volume, provides a convenient and low-contamination application method, and supports flexible and hygienic dosage management to enhance the safety and user experience of patient care. Summary of the Invention

[0007] The problem this invention aims to solve is that existing multi-dose packaging for liquid dressings cannot simultaneously achieve a combination of reliable contamination prevention, intuitive visibility of inventory, convenient aseptic application, and flexible hygienic dosage management during multiple uses.

[0008] To solve the above-mentioned technical problems, the technical solution of the present invention is: a liquid dressing storage device to avoid cross-infection, comprising a container and an extrusion assembly: the outer surface of the container is provided with a plurality of dividing grooves, the upper end of the container is provided with a lid assembly, the upper end of the lid assembly is provided with an upper sealing cap, the extrusion assembly is divided into upper and lower parts, the upper part of the extrusion assembly is located inside the container, the lower part of the extrusion assembly is located at the lower end of the container, the side of the container is provided with a plurality of prompting components, the dividing grooves can divide the container into segments, and each segment of the container is provided with a prompting component on its side; The cover assembly includes a mounting base that is rotatable, a sealing block that is fixedly disposed inside the mounting base, and a ball head component that is disposed at the upper end of the mounting base; The extrusion assembly includes a rotating base, a sealing ring fixedly disposed on the upper side of the rotating base, a scraper fixedly disposed on the side of the rotating base, a lead screw engaged in the middle of the rotating base, a sealing plate rotatably disposed on the upper end of the lead screw, and a sealing strip fixedly disposed on the middle of the upper end of the sealing plate.

[0009] Preferably, the lower end of the mounting base in the lid assembly is provided with a lower sealing cover, which is rotatably connected to the mounting base. The sealing cover is snapped onto the uppermost end of the container, and a discharge port is provided on one side of the upper end of the sealing cover. The discharge port is a half-circle.

[0010] Preferably, the shape and size of the sealing block are consistent with the discharge port, and a rotating shaft is provided at the connection between the sealing block and the lower sealing cover. The rotating shaft can only rotate 180° in a single rotation. The lower end of the sealing block is close to the upper end of the lower sealing cover, and the ball head component is threaded into the upper end of the mounting base.

[0011] Preferably, the rotating base is located at the lower end of the container. The rotating base is divided into upper and lower parts. The upper end of the rotating base is located inside the container. The sealing ring and scraper are both located on the part of the rotating base that overlaps with the container. The lower end of the rotating base is consistent with the outer diameter of the container and is located outside the container.

[0012] Preferably, the sealing ring is located at the uppermost end of the rotating base, the scraper is located at the lower end of the sealing ring, the scraper is inclined, the inclination direction of the scraper is opposite to the rotation direction of the thread, the lower end of the scraper contacts the lower edge of the container, the length inside the rotating base is consistent with the spacing of the first dividing groove, and a soft base plate is provided at the lower end of the rotating base.

[0013] Preferably, the length of the lead screw is greater than the length of the container, and the surface of the lead screw is provided with a plurality of second dividing grooves. The position and number of the second dividing grooves are the same as those of the first dividing groove. The sealing plate is slidably connected to the container. When the sealing plate is in the initial position, that is, the top of the container, all the second dividing grooves and the first dividing groove are located on the same horizontal plane.

[0014] Preferably, the sealing strip is umbrella-shaped, the thickness of the sealing strip on the side of the hollow center is greater than the thickness on the side away from the center, the upper end of the sealing strip is flush with the sealing plate, and several reinforcing ribs are fixedly provided on the upper end of the sealing strip. The reinforcing ribs on the upper end of the sealing strip are used to accelerate the rebound speed of the sealing strip.

[0015] Preferably, a slider is slidably disposed on the upper inner part of the rotating base, one end of the slider can pass through the rotating base and is located on one side of the rotating base, a spring is disposed between the slider and the rotating base, and a blade is fixedly disposed on the side of the slider near the lead screw, the blade being used to cut the lead screw.

[0016] Preferably, the prompting component includes a mounting block that can hold the lower sealing cover in place. A height indicator strip is fixedly provided on the center of the side of the mounting block, and the color of the height indicator strip gradually darkens from top to bottom. A corrugated metal plate is provided inside the mounting block. The prompting component also includes a pressure block that is fixedly provided on one side of the lower sealing cover, and the lower end of the pressure block can be inserted into the interior of the mounting block.

[0017] Preferably, the lower end of the corrugated metal plate is fixedly connected to the mounting block. Before being affected by external force, the corrugated metal plate can cover the entire height indicator strip. When the corrugated metal plate is flattened by the pressure block and cannot recover by its own properties, the height indicator strip cannot be covered by the corrugated metal plate.

[0018] Compared with the prior art, the technical solution of the present invention has the following advantages: (1) This invention achieves physical segmentation of liquid dressings by pre-setting a dividing groove on the outer wall of the container and correspondingly setting a screw that can be cut synchronously; and divides all dressings into sterile areas and low-risk areas with a sealing plate as the boundary. Furthermore, by using the dividing groove to divide the container, the contact time between the low-risk area and the outside world can be reduced, thereby further preventing the growth of bacteria in the container and thus preventing contamination of the dressing. This ensures that the remaining part is always in a completely sealed state, fundamentally eliminating cross-infection. At the same time, the material of the container can be selected from transparent, semi-transparent or completely opaque materials according to different dressings. Such a container design makes the remaining amount of each segment clearly visible, overcoming the limitations of existing technologies. Even with difficult-to-judge defects and opaque containers, the current capacity inside the container can be determined by the length of the protruding screw. Furthermore, based on the above, this invention integrates storage, quantitative extrusion, and aseptic application functions into one unit. Through the design of the cap assembly and dividing groove, users can choose between two modes: "one-time large-volume extrusion" or "small-volume multiple-dip application" according to their needs. Especially when using small quantities, no external tools are needed; the dressing can be delivered to the ball head for application through internal extrusion and swirling transfer, minimizing the risk of the dressing being exposed to air and being contaminated during use. When using large quantities at once, extrusion efficiency can be guaranteed while reducing the probability of infection. (2) The present invention is designed to address the issue of the safe use period of residual dressing in the opened section through the prompt component. The metal plate will undergo irreversible rebound deformation due to stress relaxation over time. The rebound height can be compared with the height prompt bar of the gradient color through the observation window, so as to intuitively judge how long the dressing has been opened. This purely mechanical time prompt method without electricity is more stable and reliable than chemical color change agents, and provides users with clear safe use guidance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention (without the upper sealing cap); Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a schematic diagram of the upper part of the cover assembly of the present invention; Figure 5 This is a schematic diagram of the lower half of the cover assembly of the present invention; Figure 6 This is a schematic diagram of a partial cross-sectional view of the container (at the sealing plate) of the present invention; Figure 7 This is a bottom view of a partial cross-sectional structure (sealing plate area) of the container of the present invention; Figure 8 This is a partial cross-sectional view of the bottom of the container of the present invention; Figure 9 This is a schematic diagram of the internal structure of the rotating base of the present invention; Figure 10 This is a schematic cross-sectional view of the overall structure of the present invention.

[0020] In the diagram: 1. Container; 2. Dividing groove one; 3. Cover assembly; 301. Lower sealing cover; 302. Discharge port; 303. Mounting base; 304. Sealing block; 305. Ball head component; 4. Upper sealing cover; 5. Extrusion assembly; 501. Rotating base; 502. Sealing ring; 503. Scraper; 504. Lead screw; 5041. Dividing groove two; 505. Sealing plate; 506. Sealing strip; 507. Slider; 508. Spring; 509. Blade; 6. Indication assembly; 601. Mounting block; 602. Height indicator strip; 603. Corrugated metal plate; 604. Pressure block. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0022] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms used in this disclosure, mean that an element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0023] like Figures 1 to 10 As shown, the present invention provides a liquid dressing storage device to avoid cross-infection, comprising a container 1 and an extrusion assembly 5, characterized in that: the outer surface of the container 1 is provided with a plurality of dividing grooves 2, the upper end of the container 1 is provided with a lid assembly 3, the upper end of the lid assembly 3 is provided with an upper sealing cap 4, the extrusion assembly 5 is divided into upper and lower parts, the upper part of the extrusion assembly 5 is located inside the container 1, the lower part of the extrusion assembly 5 is located at the lower end of the container 1, a plurality of prompting components 6 are provided on the side of the container 1, the dividing grooves 2 can divide the container 1 into segments, and each segment of the container 1 is provided with a prompting component 6 on its side; The cover assembly 3 includes a mounting base 303, which is rotatable. A sealing block 304 is fixedly disposed inside the mounting base 303, and a ball head component 305 is disposed at the upper end of the mounting base 303. The extrusion assembly 5 includes a rotating base 501, a sealing ring 502 fixedly disposed on the upper side of the rotating base 501, a scraper 503 fixedly disposed on the side of the rotating base 501, a lead screw 504 engaged in the middle of the rotating base 501, a sealing plate 505 rotatably disposed on the upper end of the lead screw 504, and a sealing strip 506 fixedly disposed on the middle of the upper end of the sealing plate 505.

[0024] The lower end of the mounting base 303 in the lid assembly 3 is provided with a lower sealing cover 301. The lower sealing cover 301 is rotatably connected to the mounting base 303. The sealing cover 301 is snapped onto the uppermost end of the container 1. A discharge port 302 is opened on one side of the upper end of the sealing cover 301. The discharge port 302 is a half-ring.

[0025] The shape and size of the sealing block 304 are consistent with the discharge port 302. A rotating shaft is provided at the connection between the sealing block 304 and the lower sealing cover 301. The rotating shaft can only rotate 180° in a single rotation. The lower end of the sealing block 304 is close to the upper end of the lower sealing cover 301. The ball head component 305 is threadedly engaged with the upper end of the mounting base 303.

[0026] The rotating base 501 is located at the lower end of the container 1. The rotating base 501 is divided into upper and lower parts. The upper end of the rotating base 501 is located inside the container 1. The sealing ring 502 and the scraper 503 are both located at the part of the rotating base 501 that overlaps with the container 1. The lower end of the rotating base 501 is consistent with the outer diameter of the container 1 and is located outside the container 1.

[0027] The sealing ring 502 is located at the top of the rotating base 501, and the scraper 503 is located at the bottom of the sealing ring 502. The scraper 503 is inclined and the inclination direction of the scraper 503 is opposite to the rotation direction of the thread. The bottom end of the scraper 503 contacts the bottom edge of the container 1. The length inside the rotating base 501 is consistent with the spacing of the dividing groove 2. A soft base plate is provided at the bottom of the rotating base 501.

[0028] The length of the lead screw 504 is greater than the length of the container 1. Several dividing grooves 5041 are opened on the surface of the lead screw 504. The position and number of dividing grooves 5041 are the same as those of dividing groove 2. The sealing plate 505 is slidably connected to the container 1. When the sealing plate 505 is in the initial position, that is, the top of the container 1, all dividing grooves 5041 and dividing groove 2 are located on the same horizontal plane.

[0029] The sealing strip 506 is umbrella-shaped. The thickness of the sealing strip 506 on the side with the center is greater than the thickness on the side away from the center. The upper end of the sealing strip 506 is flush with the sealing plate 505. Several reinforcing ribs are fixedly installed on the upper end of the sealing strip 506. The reinforcing ribs on the upper end of the sealing strip 506 are used to accelerate the rebound speed of the sealing strip 506.

[0030] A slider 507 is slidably disposed on the upper part of the interior of the rotating base 501. One end of the slider 507 can pass through the rotating base 501 and is located on one side of the rotating base 501. A spring 508 is disposed between the slider 507 and the rotating base 501. A blade 509 is fixedly disposed on the side of the slider 507 near the lead screw 504. The blade 509 is used to cut the lead screw 504.

[0031] The prompting component 6 includes a mounting block 601, which can hold the lower sealing cover 301 in place. A height indicator strip 602 is fixedly provided on the middle of the side of the mounting block 601. The color of the height indicator strip 602 gradually darkens from top to bottom. A corrugated metal plate 603 is provided inside the mounting block 601. The prompting component 6 also includes a pressure block 604, which is fixedly provided on one side of the lower sealing cover 301. The lower end of the pressure block 604 can be inserted into the interior of the mounting block 601.

[0032] The lower end of the corrugated metal plate 603 is fixedly connected to the mounting block 601. Before being affected by external force, the corrugated metal plate 603 can cover the entire height indicator strip 602. When the corrugated metal plate 603 is flattened by the pressure block 604 and cannot recover by its own properties, the height indicator strip 602 cannot be covered by the corrugated metal plate 603.

[0033] Working principle and usage process of this invention: When extruding the dressing, simply rotate the base 501: When the rotating base 501 rotates, firstly, the screw 504 in the middle is stressed, causing the sealing plate 505 to move downward. Since the dressing in the container 1 is already full, when the sealing plate 505 moves downward, it can compress the dressing inside. At this time, the internal pressure increases, and the dressing can slowly overflow from the sealing strip 506. When the rotating base 501 stops rotating, as the dressing overflows, the internal pressure gradually decreases. Then, the sealing strip 506 can use its own elasticity to re-engage with the sealing plate 505 and complete the seal. As the usage time increases, after the dressing in the uppermost container 1 is used up, the sealing plate 505 is located at the lower edge of the first dividing groove 2, and the lower end of the screw 504 has reached the soft base at the lower end of the rotating base 501. At this time: first, pull out the lower sealing cover 301 and cut the container 1 along the first dividing groove 2 to detach the uppermost container 1. Then, clean and disinfect the remaining dressing in the sealing plate 505 and the cover assembly 3. After completion, put the lower sealing cover 301 back into the uppermost part of the container 1. Finally, press down the slider 507 hard so that the blade 509 on one side can cut the screw 504 along the second dividing groove 5041. The broken screw 504 can be pushed to another place so that it can be used again. It is worth noting that container 1 must be divided first, and then sterilized and resealed before cutting the threaded rod 504. It is worth mentioning that the soft base at the bottom of the rotating base 501 can seal its bottom. If the container 1 body is too long and the number of dividing slots 2 is too small, the screw 504 may be easily affected by subsequent movement after being cut. In this case, the soft base can be temporarily removed and the cut screw 504 can be taken out. Finally, the inside of the rotating base 501 can be disinfected and then reinstalled. It is worth mentioning that: in order to reduce the probability of the dressing spilling out from the connection between the rotating base 501 and the container 1, firstly, multiple sealing rings 502 can prevent the dressing from continuing to move downward and prevent external air from entering from here. Secondly, the scraper 503 can push the impurities located at the lower end of the container 1 or the dressing that has spilled out from above downward as the rotating base 501 rotates, thereby further reducing the probability of the internal dressing coming into contact with the outside world to a certain extent. The extruded dressing is used in two ways: If a large amount of dressing is needed in a short period of time, the sealing plate 505 can be moved to a suitable position at once. At this time, the amount squeezed out can be judged by the dividing groove 2. Then, the container 1 can be divided directly along the first dividing groove 2 above the sealing plate 505. The dressing interface inside the divided container 1 can be taken out and used directly. Then, the disinfection steps can be repeated to put the lid assembly 3 back on. If only a small amount of dressing is needed at a time, after squeezing out the dressing, rotate the mounting base 303 to move the sealing block 304 away from the outlet 302, then hold the container 1 and shake it. At this time, the cap assembly 3 must be placed on the outer side. After the dressing inside is shaken into the ball head component 305, rotate the mounting base 303 again to block the outlet 302 with the sealing block 304. Then, invert the container 1 and use the ball head to apply the dressing to the affected area. After use, unscrew the ball head component 305 and clean the inside of the ball head component 305 and the mounting base 303 before reinstalling them. It is worth noting that, in order to prevent the dressing from being accidentally thrown out, the upper sealing cap 4 must be tightly closed when the dressing is being shaken. For cases where only a small amount is needed at a time, to prevent the dressing on the upper part of the sealing plate 505 from becoming contaminated due to prolonged storage, an additional step is required. When replacing the lower sealing cover 301, it needs to be pressed down firmly until the pressure block 604 is inserted into the mounting block 601 and presses the corrugated metal plate 603 tightly. Before the next use, the sealing cover 301 can be slowly pushed upwards a short distance, just enough to remove the pressure block 604 from the mounting block 601. Then, observe the rebound of the corrugated metal plate 603 and refer to the height indicator strip 602 to determine its rebound height. If the corrugated metal plate 603 completely loses its rebound ability, the dressing located on the upper part of the sealing plate 505 and inside the cover assembly 3 needs to be cleaned and re-sterilized.

[0034] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A liquid dressing storage device for preventing cross-infection, comprising a container (1) and an extrusion assembly (5), characterized in that: The outer surface of the container (1) is provided with several dividing grooves (2). The upper end of the container (1) is provided with a lid assembly (3). The upper end of the lid assembly (3) is provided with an upper sealing cap (4). The extrusion assembly (5) is divided into upper and lower parts. The upper part of the extrusion assembly (5) is located inside the container (1), and the lower part of the extrusion assembly (5) is located at the lower end of the container (1). Several prompting components (6) are provided on the side of the container (1). The dividing grooves (2) can divide the container (1) into segments. Each segment of the container (1) is provided with a prompting component (6) on its side. The cover assembly (3) includes a mounting base (303) which is rotatable. A sealing block (304) is fixedly disposed inside the mounting base (303), and a ball head component (305) is disposed at the upper end of the mounting base (303). The extrusion assembly (5) includes a rotating base (501), a sealing ring (502) is fixedly provided on the upper side of the rotating base (501), a scraper (503) is fixedly provided on the side of the rotating base (501), a lead screw (504) is engaged in the middle of the rotating base (501), a sealing plate (505) is rotatably provided on the upper end of the lead screw (504), and a sealing strip (506) is fixedly provided on the middle of the upper end of the sealing plate (505).

2. The liquid dressing storage device for preventing cross-infection according to claim 1, characterized in that: The lower end of the mounting base (303) in the lid assembly (3) is provided with a lower sealing cover (301). The lower sealing cover (301) is rotatably connected to the mounting base (303). The sealing cover (301) is snapped onto the uppermost end of the container (1). A discharge port (302) is opened on one side of the upper end of the sealing cover (301). The discharge port (302) is a half-ring.

3. The liquid dressing storage device for preventing cross-infection according to claim 1, characterized in that: The shape and size of the sealing block (304) are consistent with the discharge port (302). A rotating shaft is provided at the connection between the sealing block (304) and the lower sealing cover (301). The rotating shaft can only rotate 180° in a single rotation. The lower end of the sealing block (304) is close to the upper end of the lower sealing cover (301). The ball head component (305) is threaded into the upper end of the mounting base (303).

4. The liquid dressing storage device for preventing cross-infection according to claim 1, characterized in that: The rotating base (501) is located at the lower end of the container (1). The rotating base (501) is divided into upper and lower parts. The upper end of the rotating base (501) is located inside the container (1). The sealing ring (502) and the scraper (503) are both located in the part of the rotating base (501) that overlaps with the container (1). The lower end of the rotating base (501) is consistent with the outer diameter of the container (1), and the lower end of the rotating base (501) is located outside the container (1).

5. A liquid dressing storage device for preventing cross-infection according to claim 4, characterized in that: The sealing ring (502) is located at the uppermost end of the rotating base (501), and the scraper (503) is set at the lower end of the sealing ring (502). The scraper (503) is inclined, and the inclination direction of the scraper (503) is opposite to the rotation direction of the thread. The lower end of the scraper (503) contacts the lower edge of the container (1). The length inside the rotating base (501) is consistent with the spacing of the first dividing groove (2). The lower end of the rotating base (501) is provided with a soft base plate.

6. A liquid dressing storage device for preventing cross-infection according to claim 1, characterized in that: The length of the lead screw (504) is greater than the length of the container (1). The surface of the lead screw (504) is provided with a number of dividing grooves 2 (5041). The position and number of dividing grooves 2 (5041) are the same as those of dividing groove 1 (2). The sealing plate (505) is slidably connected to the container (1). When the sealing plate (505) is in the initial position, that is, the top of the container (1), all the dividing grooves 2 (5041) and dividing groove 1 (2) are located on the same horizontal plane. A sealing element is provided between the lead screw (504) and the rotating base (501).

7. A liquid dressing storage device for preventing cross-infection according to claim 1, characterized in that: The sealing strip (506) is umbrella-shaped. The thickness of the sealing strip (506) on the side with the center is greater than the thickness on the side away from the center. The upper end of the sealing strip (506) is flush with the sealing plate (505). Several reinforcing ribs are fixedly provided on the upper end of the sealing strip (506). The reinforcing ribs on the upper end of the sealing strip (506) are used to accelerate the rebound speed of the sealing strip (506).

8. A liquid dressing storage device for preventing cross-infection according to claim 1, characterized in that: A slider (507) is slidably disposed on the upper inner side of the rotating base (501). One end of the slider (507) can pass through the rotating base (501) and is located on one side of the rotating base (501). A spring (508) is disposed between the slider (507) and the rotating base (501). A blade (509) is fixedly disposed on the side of the slider (507) near the lead screw (504). The blade (509) is used to cut the lead screw (504).

9. A liquid dressing storage device for preventing cross-infection according to claim 1, characterized in that: The prompting component (6) includes a mounting block (601) that can hold the lower sealing cover (301). A height prompting strip (602) is fixedly provided on the middle of the side of the mounting block (601). The color of the height prompting strip (602) gradually darkens from top to bottom. A corrugated metal plate (603) is provided inside the mounting block (601). The prompting component (6) also includes a pressure block (604) that is fixedly provided on one side of the lower sealing cover (301). The lower end of the pressure block (604) can be inserted into the interior of the mounting block (601).

10. A liquid dressing storage device for preventing cross-infection according to claim 9, characterized in that: The lower end of the corrugated metal plate (603) is fixedly connected to the mounting block (601). Before being affected by external force, the corrugated metal plate (603) can cover the entire height indicator strip (602). When the corrugated metal plate (603) is flattened by the pressure block (604) and cannot recover by its own properties, the height indicator strip (602) cannot be covered by the corrugated metal plate (603).

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