Pathological mother-daughter bag

By introducing anti-rotation components and a simplified interception mechanism into the pathology mother-daughter bag, the problem of fixative leakage caused by loose internal thread caps was solved, improving sealing and production efficiency during transportation and reducing costs.

CN224336167UActive Publication Date: 2026-06-09ANHUI DAQIAN BIO ENG LIMITED

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI DAQIAN BIO ENG LIMITED
Filing Date
2025-05-16
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing pathology mother-daughter bags are prone to loosening of the inner threaded cap during transportation, leading to leakage of fixative fluid and affecting diagnostic accuracy. At the same time, the interception tool has a complex structure, low production efficiency, and high cost.

Method used

A pathology mother-daughter bag was designed, including an anti-rotation component and an improved interception mechanism. The anti-rotation component fixes the internal threaded cover with a limiting component and a deformable support foot. The interception mechanism simplifies the structure with a dialysis clip body and a protective strip, ensuring that the internal threaded cover does not loosen and can be opened easily. The dialysis clip body and the protective strip are integrally pressed to improve production efficiency.

Benefits of technology

It effectively prevents the leakage of the solidified liquid, improves the tightness of the liquid circuit closure, simplifies operation, and reduces production costs and installation difficulty.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224336167U_ABST
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Abstract

This utility model provides a pathology interlocking bag, including an interlocking bag body. The interlocking bag body contains a connected sub-bag, a fluid passage, and a mother bag. A through hole is provided between the sub-bag and the mother bag for a flow-stopping mechanism to pass through. The flow-stopping mechanism controls the opening and closing of the fluid passage. One end of the interlocking bag body near the mother bag has a bottom surface (c), and the other end has a sealing portion for opening and closing the sub-bag. The mother bag has an infusion tube. It also includes a limiting component, an internal threaded cap, and an anti-rotation component. This utility model ensures quick opening of the internal threaded cap without it becoming loose; it prevents accidental opening of the free end of the clamp during transportation, improves the tightness of the fluid passage closure, and the dialysis clamp body and protective strip are integrally molded, improving the production and installation efficiency of the flow-stopping mechanism and reducing product production costs.
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Description

Technical Field

[0001] This utility model relates to the field of specimen preservation technology, specifically to a pathological mother-daughter bag. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] Pathology mother-daughter bags are used to fix, preserve, and transport tissues taken from the human body. The fixed tissues are used only for in vitro analysis and testing and are not used for treatment.

[0004] The pathology mother-daughter bag consists of a daughter bag and a mother bag, which are connected by a fluid passage. During use, a flow control tool is used to open and close the fluid passage, thereby controlling the flow of the fixative in the mother bag. An infusion tube is located at the end of the mother-daughter bag, and the infusion tube is threaded with an internally threaded cap. If, during transportation, accidental contact or friction between objects causes the internally threaded cap to loosen, the fixative may leak out, posing a high risk of fixative leakage. This could contaminate the specimen inside the pathology mother-daughter bag, affecting the accuracy of the pathological diagnosis.

[0005] If a more complex component is used to fix the internal thread cap, it will be difficult to open the internal thread cap during testing, making it impossible to quickly open the bottle cap while ensuring that the internal thread cap does not loosen; moreover, the interception tool equipped on the existing pathology mother-daughter bag has a complex structure and delicate parts, resulting in low efficiency and high cost in the production and installation of the interception tool. Utility Model Content

[0006] The main purpose of this utility model is to provide a pathological mother-daughter bag.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows: a pathological mother-daughter bag includes a mother-daughter bag body, wherein the mother-daughter bag body is divided into a connected daughter bag, a fluid passage, and a mother bag, and a through hole is provided between the daughter bag and the mother bag for a flow-stopping mechanism to pass through; the opening and closing of the flow-stopping mechanism is controlled to control the opening and closing of the fluid passage, and a bottom surface c is provided at one end of the mother-daughter bag body near the mother bag, and a sealing part is provided at the other end of the mother-daughter bag body for opening and closing the daughter bag, and an infusion tube is provided on the mother bag;

[0008] It also includes a limiting component, an internal threaded cap, and an anti-rotation component. The internal threaded cap is used to close and open the inlet d of the infusion tube. The infusion tube is fixed with a limiting component to position the anti-rotation component. The internal threaded cap is fitted with an anti-rotation component to prevent it from rotating.

[0009] The anti-rotation component includes a protective cover, deformable support feet, and a limiting block. The protective cover includes an a-side of its inner cavity and a b-side of its bottom. The a-side is provided with a limiting block, which cooperates with the limiting groove of the sealing end e of the internal threaded cover. The b-side is provided with deformable support feet, and the limiting component limits the deformable support feet through a through hole two in its inner wall.

[0010] Furthermore, the interception mechanism includes a dialysis clip body, which includes a first clip and a second clip disposed at both ends of the elastic block and opening and closing around the elastic block. When clamped, the latch at the free end of the first clip engages with the latch at the free end of the second clip.

[0011] Furthermore, the outer surface of the first clamping piece is symmetrically provided with a sliding groove one, and the free end of the clamping block is symmetrically provided with a sliding groove two. When clamped, the sliding groove one and the sliding groove two are aligned on the same straight line.

[0012] It also includes a protective strip, one end of which is inserted into slide groove one and the other end into slide groove two. The protective strip is tightly connected to slide groove two, and the block is fixed in place by the protective strip.

[0013] Furthermore, when the anti-rotation component protects the internal threaded cover, the limiting block with surface a facing the sealing end e is inserted into the limiting groove, and the deformable support leg passes through the through hole two after deformation, which is used to fix the anti-rotation component and the internal threaded cover at the same time.

[0014] Furthermore, the deformable support includes a deformable leg and a positioning block that are fixedly connected, and the deformable leg is symmetrically arranged on surface b.

[0015] Furthermore, both the dialysis clip body and the protective strip are integrally pressed and molded.

[0016] Furthermore, the sealing portion includes an easy-tear line for opening the main body of the mother and daughter bags and a sealing strip for controlling the opening and closing of the daughter bags.

[0017] Furthermore, the sub-bag is used to hold the specimen, the mother bag is used to hold the fixative, the volume ratio of the fixative to the specimen is greater than or equal to 4:1, and the internal threaded cap is threadedly connected to the infusion tube.

[0018] The beneficial effects of this utility model are reflected in:

[0019] This invention features an anti-rotation component fitted onto the internal threaded cover to prevent it from rotating. When the internal threaded cover does not rotate, no gap will form between it and the inlet d. The anti-rotation component has a simple structure and is easy to operate, ensuring that the internal threaded cover can be opened quickly without loosening. This prevents the free end of the jamming block from being accidentally opened during transportation, improving the tightness of the liquid passage closure. The dialysis clamp body and protective strip are integrally molded, improving the production and installation efficiency of the interception mechanism and reducing the product's production cost. Attached Figure Description

[0020] In the attached diagram:

[0021] Figure 1 This is a perspective view of the present utility model;

[0022] Figure 2 This is an unfolded view of the neutron bag of this utility model;

[0023] Figure 3 This is an unfolded view of the bottom surface of the main body of the mother-daughter bag in this utility model;

[0024] Figure 4 This is a cross-sectional view of the anti-rotation component in this utility model;

[0025] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0026] Figure 6 This is a front view of the interception mechanism in this utility model;

[0027] Figure 7 for Figure 6 Enlarged view at point B;

[0028] Figure 8 This is a perspective view of the protective strip and the slide groove in this utility model when they are inserted together.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Daughter bag; 2. Fluid passage; 3. Mother bag; 4. Through hole one; 5. Infusion tube; 6. Internal threaded cap; 7. Limiting element; 8. Easy-tear line; 9. Sealing strip;

[0031] 51. Protective cover; 52. Deformable support leg; 53. Limiting block; 54. Limiting groove; 55. Through hole two;

[0032] 71. Dialysis clip body; 72. Protective strip; 73. Elastic block; 74. First clip; 75. Second clip; 76. Bayonet; 77. Locking block; 78. Slide groove one; 79. Slide groove two;

[0033] 521. Deformable outrigger; 522. Positioning block. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, and not all of them. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the utility model without creative effort are within the scope of protection of the utility model.

[0035] See Figures 1 to 8 .

[0036] This utility model discloses a pathological mother-daughter bag, including a mother-daughter bag body. The mother-daughter bag body is divided into a connected daughter bag 1, a fluid passage 2, and a mother bag 3. A through hole 4 is provided between the daughter bag 1 and the mother bag 3 for a flow-stopping mechanism to pass through. The opening and closing of the flow-stopping mechanism controls the opening and closing of the fluid passage 2. The end of the mother-daughter bag body near the mother bag 3 has a bottom surface c, which allows the mother-daughter bag body to be placed upright on a workbench without the aid of other tools. The other end of the mother-daughter bag body has a sealing part for opening and closing the daughter bag 1. An infusion tube 5 is provided on the mother bag 3.

[0037] It also includes a limiting member 7, an internal threaded cover 6, and an anti-rotation component. The internal threaded cover 6 is used to close and open the inlet d of the infusion tube 5. The limiting member 7 is fixed on the infusion tube 5 to position the anti-rotation component. The internal threaded cover 6 is fitted with an anti-rotation component to prevent it from rotating. If the internal threaded cover 6 does not rotate, there will be no gap between it and the inlet d.

[0038] The anti-rotation component includes a protective cover 51, a deformable support leg 52, and a limiting block 53. The protective cover 51 includes an a-side of its inner cavity and a b-side of its bottom. The a-side is provided with a limiting block 53, which cooperates with the limiting groove 54 of the sealing end e of the internal threaded cover 6. The b-side is provided with a deformable support leg 52. The limiting component 7 limits the deformable support leg 52 through a through hole 55 in its inner wall.

[0039] Deformable support 52 can use only deformable support leg 521. In this case, it is necessary to ensure that the friction between limit block 53 and limit groove 54 is large enough.

[0040] The deformable support leg 52 can be a fixedly connected deformable support leg 521 and positioning block 522. The deformable support leg 521 is symmetrically arranged on surface b. In this case, there is no requirement for the frictional force between the limiting block 53 and the limiting groove 54. It is necessary that the deformable support leg 521 can drive the positioning block 522 through the second through hole 55 during the inward deformation. After the deformable support leg 521 deforms and resets to its original position, the positioning block 522 can be stuck on the limiting member 7, making it impossible to directly pull out the positioning block 522 and the deformable support leg 521 from the second through hole 55. The limiting groove 54 can be straight or cross-shaped.

[0041] Furthermore, the interception mechanism includes a dialysis clip body 71, which includes a first clip 74 and a second clip 75 disposed at both ends of the elastic block 73 and opening and closing around the elastic block 73. When clamped, the latch 76 at the free end of the first clip 74 engages with the latch 77 at the free end of the second clip 75. The dialysis clip body 71 is prior art. In the prior art, when the free end of the latch 77 is pushed in the opening direction, the free end of the latch 77 will open, and it is difficult to open the free end of the latch 77 when subjected to forces in other directions. In order to avoid the free end of the latch 77 opening during transportation, the existing dialysis clip body 71 is improved: the outer surface of the first clip 74 is symmetrically provided with a first groove 78, and the free end of the latch 77 is symmetrically provided with a second groove 79.

[0042] The shape of the free end of the clamping block 77 has been modified to prevent accidental contact. When clamped, the lower surface of the clamping block 77 is in the same plane as the lower surface of the first clamping piece 74, and the first slide groove 78 and the second slide groove 79 are aligned on the same straight line. A protective strip 72 is also included, with one end inserted into the first slide groove 78 and the other end into the second slide groove 79. The protective strip 72 and the second slide groove 79 are tightly connected, meaning there is some resistance between them, requiring a certain external force to push them. The protective strip 72 provides secondary fixation for the clamping block 77. Both the dialysis clamp body 71 and the protective strip 72 are integrally molded, improving the production and installation efficiency of the interception mechanism and reducing product production costs.

[0043] Furthermore, when the anti-rotation component protects the internal threaded cover 6, the limiting block 53 with the a-side facing the sealing end e is inserted into the limiting groove 54, and the deformable support leg 52 passes through the through hole 2 55 after deformation, which is used to fix the anti-rotation component and the internal threaded cover 6 at the same time.

[0044] Furthermore, the sealing part includes an easy-tear line 8 for opening the main body of the mother and daughter bags and a sealing strip 9 for controlling the opening and closing of the daughter bag 1.

[0045] Furthermore, the sub-bag 1 is used to place the specimen, the mother bag 3 is used to place the fixative, the volume ratio of the fixative to the specimen is greater than or equal to 4:1, and the internal threaded cap 6 is threadedly connected to the infusion tube 5.

[0046] In practice, the mother and daughter bag bodies are selected according to the size of the specimen to ensure that the volume ratio of fixative to specimen is ≥4:1.

[0047] First, fill the inlet d with the fixative. After filling, close the inlet d of the infusion tube 5 with the internal thread cap 6, i.e., seal the bottle opening. Take the protective cap 51 and put it on the internal thread cap 6. During the insertion process, pinch the deformable leg 521 inward with two fingers at the same time. Then, align the deformable leg 52 with the insertion through hole 2 55, and insert the limiting block 53 into the limiting groove 54 until the positioning block 522 completely passes through the through hole 2 55. At this time, the limiting block 53 and the limiting groove 54 are engaged, ensuring that the internal thread cap 6 cannot rotate. If the internal thread cap 6 does not rotate, there will be no gap between it and the inlet d, preventing the fixative from leaking from the inlet d. During this process, the intercepting mechanism remains clamped.

[0048] The second step is to load the specimen. Tear off the easy-tear line 8 of the sub-bag 1, pull open the sealing strip 9, put in the specimen, expel excess air from the sub-bag 1, and then close the sealing strip 9. Then, open the flow-stopping mechanism at the liquid passage 2: push the protective strip 72 along the slide 1 78 to disengage the protective strip 72 from the locking block 77 and the slide 2 79, and pry the locking block 77 outward to separate the locking block 77 from the locking slot 76, opening the first clamp 74 and the second clamp 75. Invert the main body of the mother and daughter bags to allow the fixative to flow into the sub-bag 1. Once the appropriate volume is reached, close the flow-stopping mechanism in time. After closing the dialysis clamp body 71, push the protective strip 72 in the opposite direction so that one end of the protective strip 72 is inserted into the slide 1 78 and the other end is inserted into the slide 2 79. To prevent the free end of the clamp 77 from being subjected to external force pointing in the direction of the second clamp 75 during transportation, which could cause the dialysis clamp body 71 to be accidentally opened, and to improve the tightness of the liquid channel 2 closure, the dialysis clamp body 71 and the protective strip 72 are both integrally pressed and molded, which improves the production and installation efficiency of the interception mechanism and reduces the production cost of the product.

[0049] The third step is to open the interception mechanism when taking the specimen, raise the sub-bag 1 to allow the fixative to flow back to the mother bag 3, close the interception mechanism and then take out the specimen.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0051] It should be noted that if the utility model embodiment involves directional indicators such as up and down, the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the figure. If the specific posture changes, the directional indicators will also change accordingly.

[0052] Furthermore, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Additionally, if the utility model embodiments involve descriptions of "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" can explicitly or implicitly include at least one of those features. Furthermore, "multiple" refers to two or more. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the utility model.

Claims

1. A pathology mother-daughter bag, characterized in that, The system includes a main body containing a mother and daughter bag. The main body contains a connected daughter bag (1), a liquid passage (2), and a mother bag (3). A through hole (4) is provided between the daughter bag (1) and the mother bag (3) for the flow-stopping mechanism to pass through. The flow-stopping mechanism is controlled to open and close, thereby controlling the opening and closing of the liquid passage (2). The main body of the mother and daughter bag has a bottom surface c at one end near the mother bag (3), and a sealing part at the other end of the main body of the mother and daughter bag for opening and closing the daughter bag (1). An infusion tube (5) is provided on the mother bag (3). It also includes a limiting member (7), an internal threaded cap (6), and an anti-rotation component. The internal threaded cap (6) is used to close and open the inlet d of the infusion tube (5). The infusion tube (5) is fixed with a limiting member (7) for positioning the anti-rotation component. The internal threaded cap (6) is fitted with an anti-rotation component to prevent it from rotating. The anti-rotation component includes a protective cover (51), a deformable support leg (52), and a limiting block (53). The protective cover (51) includes an a-side of its inner cavity and a b-side of its bottom. The a-side is provided with a limiting block (53), which cooperates with the limiting groove (54) of the sealing end e of the internal threaded cover (6). The b-side is provided with a deformable support leg (52). The limiting component (7) limits the deformable support leg (52) through the through hole (55) in its inner wall.

2. The pathology mother-daughter bag according to claim 1, characterized in that, The interception mechanism includes a dialysis clip body (71), which includes a first clip (74) and a second clip (75) disposed at both ends of the elastic block (73) and opening and closing around the elastic block (73). When clamped, the latch (76) at the free end of the first clip (74) engages with the latch (77) at the free end of the second clip (75).

3. The pathology mother-daughter bag according to claim 2, characterized in that, The outer surface of the first clip (74) is symmetrically provided with a first groove (78), and the free end of the locking block (77) is symmetrically provided with a second groove (79). The first groove (78) and the second groove (79) are aligned on the same straight line. It also includes a protective strip (72), one end of which is inserted into the first slide groove (78) and the other end is inserted into the second slide groove (79). The protective strip (72) and the second slide groove (79) are tightly connected, and the card block (77) is fixed for a second time through the protective strip (72).

4. The pathology mother-daughter bag according to claim 3, characterized in that, When the anti-rotation component protects the internal threaded cover (6), the limiting block (53) with the a-side facing the sealing end e is inserted into the limiting groove (54), and the deformable support (52) passes through the through hole two (55) after deformation, which is used to fix the anti-rotation component and the internal threaded cover (6) at the same time.

5. The pathology mother-daughter bag according to claim 4, characterized in that, The deformable support leg (52) includes a deformable support leg (521) and a positioning block (522) that are fixedly connected. The deformable support leg (521) is symmetrically arranged on surface b.

6. The pathology mother-daughter bag according to claim 3, characterized in that, The dialysis clip body (71) and the protective strip (72) are both integrally pressed and molded.

7. The pathology mother-daughter bag according to any one of claims 5 to 6, characterized in that, The sealing part includes an easy-tear line (8) for opening the main body of the mother and daughter bags and a sealing strip (9) for controlling the opening and closing of the daughter bag (1).

8. The pathology mother-daughter bag according to claim 5, characterized in that, The sub-bag (1) is used to place the specimen, the mother bag (3) is used to place the fixative, the volume ratio of the fixative to the specimen is greater than or equal to 4:1, and the internal threaded cap (6) is threadedly connected to the infusion tube (5).