Anti-pollution dialysate barrel cover

Abstract

The utility model discloses an anti-pollution type dialysate barrel cover which comprises a base cover body and a cover opener, the base cover body is provided with an internal thread cylinder, the top of the internal thread cylinder is provided with a protruding ring portion extending upwards, the opening portion of the protruding ring portion is sealed by a sealing film, the cover opener is jointly formed by a sleeve and a guide pipe which are coaxially arranged from outside to inside in a sleeved mode, and the sleeve and the guide pipe are connected through a sealing film. The sleeve can be arranged outside the internal thread barrel in a sleeving mode and pierces the sealing film through the guide pipe in the downward moving process, the gap area between the dialysate tube and the dialysate barrel at the barrel opening can be reduced as much as possible, dust, food residues and other impurities are prevented from entering the dialysate barrel, patient infection and dialysis equipment blockage are prevented, and the service life of the dialysate tube is prolonged. Meanwhile, the escape speed of carbon dioxide is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of dialysis fluid tanks, and in particular to the technical field of anti-pollution dialysis fluid tank lids. Background Technology

[0002] Dialysis is a treatment method that removes some components of body fluids from the body through a semipermeable membrane (utilizing the selective permeability of the semipermeable membrane to separate small molecules such as waste, toxins, and excess water from the body fluids, while large molecules such as proteins and blood cells remain in the body). Dialysis fluid is the liquid used for solute exchange between blood and the dialysis membrane during hemodialysis. It is usually composed of three liquids: dialysis water, acid concentrate (i.e., solution A, mainly composed of K, Na, Cl, Ca, Mg, and acetate ions), and buffer solution (i.e., solution B, mainly including bicarbonate solution). During dialysis, dialysis water, solution A, and solution B are mixed in a certain proportion to form the dialysis fluid.

[0003] A dialysate tank is a packaging container for holding either solution A or solution B, and is generally made of HDPE (high-density polyethylene). To accommodate dialysate tubing of different diameters, dialysate tanks commonly found on the market often have a relatively large opening and are equipped with a regular plastic lid for a screw-on seal, such as the dialysate tank (AB solution) with announcement number CN308821571S, the dialysate tank with announcement number CN307938521S, and the dialysate tank with announcement number CN308775531S.

[0004] However, this can lead to a significant gap between the dialysis tubing and the opening when medical staff unscrew the cap and insert the tubing into the dialysis tubing. Because dialysis sessions are lengthy (hemodialysis treatment typically lasts four to five hours) and the tubing is almost semi-open, dust and other impurities can easily fall into the dialysis tubing (especially when patients are eating while undergoing dialysis, food residue can easily fall in). This can lead to bacterial growth in either solution A or solution B, causing infection and a series of adverse reactions in the patient. It can also cause blockages in the dialysis equipment. Furthermore, for solution B, carbon dioxide gas in the concentrate can easily escape, leading to a decrease in sodium bicarbonate concentration and affecting dialysis quality. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art by proposing a pollution-proof dialysis fluid tank cover that can minimize the gap area between the dialysis fluid tube at the tank opening and the dialysis fluid tank.

[0006] To achieve the above objectives, this utility model proposes a pollution-proof dialysis fluid container lid, comprising a base lid body and a lid opener. The base lid body has an internally threaded cylinder, and the internally threaded cylinder has an upwardly extending convex ring at the top. The opening of the convex ring is sealed by a sealing film. The lid opener is composed of a sleeve and a conduit coaxially fitted from the outside to the inside. The sleeve can be fitted outside the internally threaded cylinder and the conduit punctures the sealing film during downward movement.

[0007] Preferably, the outer wall of the convex ring is provided with an anti-slip texture.

[0008] Preferably, the sleeve has a number of protrusions around its inner wall, and the convex ring has a number of vertical grooves on its outer wall that correspond one-to-one with each of the protrusions.

[0009] Preferably, the bottom end of the conduit is not lower than the bottom end of the sleeve.

[0010] Preferably, the bottom end of the catheter is pointed and the top end extends beyond the sleeve.

[0011] Preferably, it also includes an inner partition, which is installed in the convex ring and has a slit that closes automatically in its natural state.

[0012] Preferably, the inner partition is shaped like a conical hat with an upward convexity in the middle, and the slit is located in the center of the inner partition.

[0013] Preferably, the cut is a cross-shaped cut or a star-shaped cut.

[0014] The beneficial effects of this utility model are:

[0015] 1) By replacing the original plastic lid of the dialysis tubing with a base cover with a sealing film, a lid opener with a matching tubing size can be selected first. Then, while the lid opener is placed outside the base cover and quickly moved down, the tubing automatically makes an adaptive opening for the sealing film, so that the dialysis tubing can be inserted into the dialysis tubing along the tubing. This minimizes the gap area between the dialysis tubing and the dialysis tubing at the opening, preventing dust and food residue from entering the dialysis tubing, preventing patient infection and dialysis equipment blockage, and reducing the rate of carbon dioxide escape.

[0016] 2) By adding several protrusions around the inner wall of the sleeve of the base cover body, and by setting several vertical grooves corresponding to each protrusion on the outer wall of the protruding ring of the cover opener, the corresponding protrusions and vertical grooves can be used for guidance and limiting during the downward movement of the cover opener, thereby improving the success rate of adaptability opening.

[0017] 3) By adding an inner slit with slits inside the base cover, and making the inner slit convex upward in the middle of the conduit, an additional layer of protection can be added by the inner slit without affecting the dialysate tube passing through the inner slit along the catheter. This allows impurities along the gap between the catheter and the dialysate tube to be intercepted as much as possible by the inner slit.

[0018] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the internal structure of Embodiment 1;

[0020] Figure 2 This is a schematic diagram of the internal structure of the base cover body in Embodiment 1;

[0021] Figure 3 This is the front view of Embodiment 1;

[0022] Figure 4 This is a top view of Embodiment 1;

[0023] Figure 5 This is a schematic diagram of the internal structure of the lid opener in Embodiment 1;

[0024] Figure 6 This is a schematic diagram of the internal structure of Embodiment 1;

[0025] Figure 7 This is a top view of the inner partition of Embodiment 2.

[0026] In the figure: 1-base cover, 11-internal threaded cylinder, 111-convex ring, 112-anti-slip texture, 113-vertical groove, 12-sealing film, 2-opener, 21-sleeve, 211-protrusion, 22-conduit, 3-inner diaphragm, 31-cut slit. Detailed Implementation

[0027] Example 1:

[0028] See Figures 1 to 5 This utility model discloses a pollution-proof dialysis fluid container lid, comprising a base lid body 1 and a lid opener 2. The base lid body 1 has an internally threaded cylinder 11, and the internally threaded cylinder 11 has an upwardly extending convex ring portion 111 at the top. The opening of the convex ring portion 111 is closed by a sealing film 12. The lid opener 2 is composed of a sleeve 21 and a conduit 22 coaxially sleeved from the outside to the inside. The sleeve 21 can be sleeved outside the internally threaded cylinder 11 and pierces the sealing film 12 by the conduit 22 during downward movement. The sealing film 12 can be made of common sealing materials such as plastic film, aluminum foil or silicone film.

[0029] The outer wall of the convex ring portion 111 is provided with anti-slip texture 112.

[0030] The sleeve 21 has a number of protrusions 211 surrounding its inner wall, and the convex ring 111 has a number of vertical grooves 113 on its outer wall that correspond one-to-one with each of the protrusions 211.

[0031] The bottom end of the conduit 22 is not lower than the bottom end of the sleeve 21.

[0032] The bottom end of the conduit 22 is pointed and the top end extends beyond the sleeve 21.

[0033] To improve adaptability and meet the needs of dialysis fluid containers with different opening sizes and dialysis fluid tubing with different diameters on the market, the base cap 1 and the cap opener 2 can be provided in various sizes and packaged separately for users to choose from; in addition, both the base cap 1 and the cap opener 2 are disposable products.

[0034] The working process of this embodiment:

[0035] When using the dialysis fluid container, first unscrew the original plastic cap, then install the base cap 1 (screw the internal threaded cylinder 11 onto the opening of the dialysis fluid container); then, select a suitable cap opener 2 (i.e., select a cap opener 2 whose inner diameter of the conduit 22 matches the outer diameter of the dialysis fluid tube) and use the cap opener 2 to open the base cap 1; during the opening process, first align each protrusion 211 with each vertical groove 113, then quickly press down the cap opener 2, so that the conduit 22 automatically perforates the inner septum 3 as it moves downwards; then, insert the dialysis fluid tube into the dialysis fluid container along the conduit 22.

[0036] Example 2:

[0037] See Figure 6 and Figure 7 It also includes an inner partition 3, which is installed in the convex ring portion 111 and has a slit 31 that closes automatically in its natural state.

[0038] The inner partition 3 is shaped like a conical hat with the center protruding upwards, and the slit 31 is located in the center of the inner partition 3.

[0039] The cut 31 is a cross-shaped cut or a star-shaped cut.

[0040] Everything else is the same as in Example 1.

[0041] The working process of this embodiment:

[0042] In this embodiment, as the dialysate tube moves downward along the conduit 22, it can penetrate the inner septum 3 through the slit 31.

[0043] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A pollution-proof dialysate bucket lid, characterized in that: The device includes a base cover (1) and a cap opener (2). The base cover (1) has an internally threaded cylinder (11). The internally threaded cylinder (11) has an upwardly extending convex ring (111) at the top. The opening of the convex ring (111) is closed by a sealing film (12). The cap opener (2) is composed of a sleeve (21) and a guide tube (22) coaxially fitted from the outside to the inside. The sleeve (21) can be fitted outside the internally threaded cylinder (11) and pierces the sealing film (12) with the guide tube (22) during downward movement.

2. The pollution-proof dialysis liquid bucket cover according to claim 1, characterized in that: The outer wall of the convex ring (111) is provided with anti-slip texture (112).

3. The pollution-proof dialysate bucket cover according to claim 1, wherein: The sleeve (21) has a number of protrusions (211) around its inner wall, and the convex ring (111) has a number of vertical grooves (113) on its outer wall that correspond one-to-one with each of the protrusions (211).

4. The pollution-proof dialysate bucket cover according to claim 3, characterized in that: The bottom end of the catheter (22) is not lower than the bottom end of the sleeve (21).

5. The pollution-proof dialysis liquid bucket cover according to claim 1, characterized in that: The bottom end of the conduit (22) is pointed and the top end extends beyond the sleeve (21).

6. The pollution-proof dialysis fluid bucket lid according to any one of claims 1 to 5, characterized in that: It also includes an inner partition (3), which is installed in the convex ring (111) and has a slit (31) that closes automatically in the natural state.

7. The pollution-proof dialysate bucket lid according to claim 6, wherein: The inner partition (3) is shaped like a conical hat with the center protruding upwards, and the slit (31) is located in the center of the inner partition (3).

8. The anti-pollution dialysis fluid container lid as described in claim 7, characterized in that: The cut (31) is a cross-shaped cut or a star-shaped cut.

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