Normal saline packaging structure

By incorporating multiple drainage tubes with varying inner diameters and a closing mechanism into the inner bag of the saline pack, the problem of uncontrollable flushing pressure in existing saline pack structures is solved, enabling flexible flushing of incisions at different depths and improving the applicability and efficiency of the device.

CN224235779UActive Publication Date: 2026-05-15THE THIRD HOSPITAL OF HEBEI MEDICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE THIRD HOSPITAL OF HEBEI MEDICAL UNIV
Filing Date
2025-02-10
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing saline packs have a simple structure, making it difficult to control the irrigation pressure. This results in insufficient pressure when deep incisions need to be irrigated, failing to meet the requirements.

Method used

Design a saline packaging structure with multiple drainage tubes on the inner bag, each with a different inner diameter and equipped with a closing mechanism. The opening and closing of the drainage tubes can be controlled by a knob to achieve flexible rinsing of incisions at different depths.

Benefits of technology

By designing multiple drain pipes and a closing mechanism, the drain pipes with different inner diameters can provide appropriate pressure under the same extrusion pressure, meeting the flushing needs of cuts at different depths and improving the flexibility and efficiency of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is applicable to the technical field of surgical instruments, and provides a normal saline packaging structure, which comprises an inner bag body, an outer bag body and a plurality of closing mechanisms, the top end of the inner bag body is vertically communicated with a plurality of liquid discharge pipes, and the plurality of closing mechanisms are respectively arranged at the other ends of the plurality of liquid discharge pipes. According to the normal saline packaging structure, the multiple liquid drainage pipes and the closing mechanism are arranged, the multiple liquid drainage pipes are arranged on the inner bag body of the device, the inner diameters of the liquid drainage pipes are different, and when the inner bag body is squeezed and under the same acting force, the smaller the inner diameters of the liquid drainage pipes are, the larger the pressure of discharged liquid is; according to the device, multiple liquid outlets are formed in the device, so that the flushing requirements of incisions with different depths can be met, and the multiple liquid outlets of the device are all provided with the closing mechanisms for closing, so that incisions with other depths can be flushed by opening different closing mechanisms after the device flushes the incision with one depth; and the flexibility of the saline bag is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of surgical instrument technology, and in particular relates to a saline packaging structure. Background Technology

[0002] Physiological saline is a 0.9% sodium chloride aqueous solution. Because its osmotic pressure is roughly the same as that of normal human blood plasma and tissue fluid, it can be used for fluid replacement and other medical purposes, and is also commonly used for in vitro culture of living tissues and cells.

[0003] Normal saline can prevent cell rupture. Its osmotic pressure is the same as that of the extracellular fluid, so it will not cause cell dehydration or excessive water absorption. Therefore, it is used in many medical procedures where fluids are needed. During surgery, blood will inevitably gush out from the incision site. In order to prevent blood from affecting the doctor's vision, normal saline is usually used to rinse the incision site. However, the current normal saline packs have a relatively simple structure, which makes it inconvenient to control the pressure during rinsing. In some cases where deep rinsing of the incision is required, the pressure is often insufficient when squeezed by hand, which cannot meet the requirements. Utility Model Content

[0004] This invention provides a saline packaging structure, which aims to solve the problem that the current saline packaging structure is relatively simple, making it inconvenient to control the pressure during rinsing. In some cases, when it is necessary to rinse deep incisions, the pressure is often insufficient when squeezed by hand, failing to meet the required requirements.

[0005] This utility model is implemented as follows: a saline packaging structure includes an inner bag, an outer bag, and multiple closing mechanisms.

[0006] The top of the inner bag is vertically connected to multiple drainage pipes, and multiple closing mechanisms are respectively disposed at the other end of the multiple drainage pipes;

[0007] All of the aforementioned closing mechanisms have the same structure. One of the closing mechanisms includes a connecting ring fixedly connected to the outer end of a drain pipe. A sealing plug is detachably installed inside the connecting ring. Multiple inner sealing rings are fixedly connected to the lower part of the inner ring surface of the connecting ring. Multiple outer sealing rings, each adapted to one of the multiple inner sealing rings, are fixedly connected to the lower part of the outer surface of the sealing plug. An internal thread is provided on the upper part of the inner ring surface of the connecting ring. An external thread adapted to the internal thread is provided on the upper part of the outer surface of the sealing plug. The sealing plug is detachably installed inside the connecting ring through the external thread. A knob is fixedly connected to the top of the sealing plug.

[0008] The inner diameter of the plurality of drainage pipes increases sequentially from one side to the other of the inner bag body.

[0009] Preferably, the specifications of the plurality of closing mechanisms are respectively adapted to the inner diameter of the drain pipes that are fixedly connected to each other.

[0010] Preferably, the outer surface of each of the knobs is provided with anti-slip texture.

[0011] Preferably, the outer bag is fitted onto the outer surface of the inner bag, and a connecting strip is fixedly connected between the bottom end of the inner bag and the bottom end of the outer bag. The outer surface of the connecting strip has multiple through holes that are evenly spaced laterally through it along its length.

[0012] Preferably, the top of the outer bag body is provided with a protruding piece, and the top of the protruding piece has a plurality of first tear-out openings arranged along the length direction of the outer bag body.

[0013] Preferably, the inner bag body, the outer bag body, the connecting strip, and the protruding piece are all made of plastic and are integrally molded.

[0014] Preferably, the lower part of one side of the outer surface of the inner bag is provided with a second tear-out opening that is arranged along its width direction.

[0015] Beneficial effects

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: The saline packaging structure of this utility model, by setting multiple drainage pipes and closing mechanisms, has multiple drainage pipes on the inner bag body of the device. The inner diameter of each drainage pipe is different. When the inner bag body is squeezed, under the same force, the smaller the inner diameter of the drainage pipe, the greater the pressure of the discharged liquid. Therefore, it can meet the rinsing needs of incisions of different depths. In addition, the multiple drainage ports of the device are all equipped with closing mechanisms to seal them. This allows the device to rinse incisions of other depths by opening different closing mechanisms after rinsing incisions of one depth, thus improving the flexibility of the saline package. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the closing mechanism in this utility model;

[0019] Figure 3 for Figure 1 A magnified view of a portion of area A in the middle.

[0020] In the diagram: 1-Inner bag body, 2-Drain pipe, 3-Closing mechanism, 31-Connecting ring, 32-Sealing plug, 33-Outer sealing ring, 34-Inner sealing ring, 35-External thread, 36-Internal thread, 37-Knob, 4-Outer bag body, 5-Protruding piece, 6-First tear-off opening, 7-Hanging hole, 8-Connecting strip, 9-Through hole. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] Please see Figure 1-3 This utility model provides a technical solution: a saline packaging structure, including an inner bag 1, an outer bag 4 and multiple closing mechanisms 3;

[0023] The top of the inner bag 1 is vertically connected to multiple drain pipes 2, and multiple closing mechanisms 3 are respectively set at the other end of the multiple drain pipes 2;

[0024] The structures of the multiple closing mechanisms 3 are all the same. One of the closing mechanisms 3 includes a connecting ring 31 fixedly connected to the outer end of a drain pipe 2. A sealing plug 32 is detachably installed inside the connecting ring 31. Multiple inner sealing rings 34 are fixedly connected to the lower part of the inner ring surface of the connecting ring 31. Multiple outer sealing rings 33, which are adapted to the multiple inner sealing rings 34, are fixedly connected to the lower part of the outer surface of the sealing plug 32. An internal thread 36 is provided on the upper part of the inner ring surface of the connecting ring 31. An external thread 35 adapted to the internal thread 36 is provided on the upper part of the outer surface of the sealing plug 32. The sealing plug 32 is detachably installed inside the connecting ring 31 through the external thread 35. A knob 37 is fixedly connected to the top of the sealing plug 32.

[0025] The inner diameter of the multiple drainage pipes 2 increases sequentially from one side of the inner bag body 1 to the other side.

[0026] The specifications of the multiple closing mechanisms 3 are respectively adapted to the inner diameter of the drain pipes 2 that are fixedly connected to each other.

[0027] In this embodiment, the inner bag 1 of the device is provided with multiple drain pipes 2, each with a different inner diameter. When the inner bag 1 is squeezed, under the same force, the smaller the inner diameter of the drain pipe 2, the greater the pressure of the discharged liquid. Therefore, it can meet the rinsing needs of cuts at different depths. Furthermore, the multiple drain ports of the device are all equipped with closing mechanisms 3 for sealing. This allows the device to rinse cuts at other depths by opening different closing mechanisms 3 after rinsing cuts at one depth, thus improving the flexibility of the saline pack.

[0028] The inner bag 1 contains 500ml or 1000ml.

[0029] When it is necessary to open a drain pipe 2, turn the knob 37 at the top of the sealing plug 32 counterclockwise, which will simultaneously drive the sealing plug 32 to rotate. Under the action of the internal thread 36 and the external thread 35, the sealing plug 32 can be removed from the inside of the connecting ring 31. At this time, the drain pipe 2 connected to the closing mechanism 3 can discharge saline. When it is necessary to close it, the operation is reversed. Tighten the sealing plug 32 clockwise inside the connecting ring 31. After the sealing plug 32 is installed inside the connecting ring 31, the outer sealing ring 33 on its outer surface and the inner sealing ring 34 inside the connecting ring 31 fit tightly together. Both are made of rubber, which can effectively seal and prevent saline leakage.

[0030] Furthermore, the outer surfaces of multiple knobs 37 are provided with anti-slip textures.

[0031] In this embodiment, the anti-slip texture makes it easier for people to turn the knob 37.

[0032] Furthermore, the outer bag 4 is fitted onto the outer surface of the inner bag 1, and a connecting strip 8 is fixedly connected between the bottom inside the outer bag 4 and the bottom outside the inner bag 1. Multiple through holes 9 are evenly spaced and transversely opened on the outer surface of the connecting strip 8 along its length.

[0033] The top of the outer bag body 4 is provided with a protruding piece 5, and the top of the protruding piece 5 is provided with a plurality of first tear-out openings 6 arranged along the length direction of the outer bag body 4.

[0034] The inner bag body 1, outer bag body 4, connecting strip 8, and protruding piece 5 are all made of plastic and are molded as one piece.

[0035] In this embodiment, the outer bag 4 and the inner bag 1 are integrally formed, and the space between them is a sterile environment. When using the device, the outer bag 4 is torn open by the first tear opening 6 at the top and then stretched to both sides to tear the outer bag 4 in half from the middle. Then, the connecting strip 8 connecting it to the inner bag 1 is pulled off to complete the separation of the outer bag 4 and the inner bag 1. The separated inner bag 1 can be directly used in the operating room.

[0036] The connecting strip 8 is used to connect the outer bag 4 and the inner bag 1. People can observe its structure to determine whether the brine pack is being used for the first time. The through hole 9 on it makes it easy to tear open.

[0037] A hanging hole 7 is also provided through the outer surface of the protruding piece 5 to facilitate hanging the brine bag.

[0038] Furthermore, a second tear-out opening (10) is provided on the lower part of one side of the outer surface of the inner bag body (1) along its width direction.

[0039] In this embodiment, the saline bag is frozen in some cases, at which point the saline will form ice. The inner bag can be quickly torn open through the second tear opening 10 on the inner bag body 1 to remove the saline in the ice state.

[0040] The working principle and usage process of this utility model are as follows: First, tear open the outer bag 4 and place the inner bag 1 on the operating table. When using this device, the closing mechanism 3 can be opened as needed. The inner diameter of each drain pipe 2 is different. When squeezing the inner bag 1, under the same force, the smaller the inner diameter of the drain pipe 2, the greater the pressure of the discharged liquid. Therefore, it can meet the needs of rinsing incisions of different depths. In addition, the multiple drain ports of this device are all equipped with closing mechanisms 3 for sealing. This allows the device to rinse incisions of other depths by opening different closing mechanisms 3 after rinsing incisions of one depth, thus improving the flexibility of the saline pack.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A saline solution packaging structure, characterized in that: It includes an inner bag (1), an outer bag (4), and multiple closing mechanisms (3); The top of the inner bag (1) is vertically connected to multiple drain pipes (2), and multiple closing mechanisms (3) are respectively disposed at the other end of the multiple drain pipes (2); The structures of the multiple closing mechanisms (3) are all the same. One of the closing mechanisms (3) includes a connecting ring (31) fixedly connected to the outer end of a drain pipe (2). A sealing plug (32) is detachably installed inside the connecting ring (31). Multiple inner sealing rings (34) are fixedly connected to the lower part of the inner ring surface of the connecting ring (31). Multiple outer sealing rings (33) that are adapted to the multiple inner sealing rings (34) are fixedly connected to the lower part of the outer surface of the sealing plug (32). An internal thread (36) is provided on the upper part of the inner ring surface of the connecting ring (31). An external thread (35) that is adapted to the internal thread (36) is provided on the upper part of the outer surface of the sealing plug (32). The sealing plug (32) is detachably installed inside the connecting ring (31) through the external thread (35). A knob (37) is fixedly connected to the top of the sealing plug (32). The inner diameter of the plurality of drainage pipes (2) increases sequentially from one side to the other of the inner bag body (1).

2. The saline solution packaging structure as described in claim 1, characterized in that: The specifications of the multiple closing mechanisms (3) are respectively adapted to the inner diameter of the drain pipes (2) that are fixedly connected to each other.

3. The saline solution packaging structure as described in claim 1, characterized in that: The outer surface of each of the knobs (37) is provided with anti-slip texture.

4. The saline solution packaging structure as described in claim 1, characterized in that: The outer bag (4) is fitted onto the outer surface of the inner bag (1). A connecting strip (8) is fixedly connected between the bottom inside the outer bag (4) and the bottom outside the inner bag (1). Multiple through holes (9) are evenly spaced and transversely opened on the outer surface of the connecting strip (8) along its length.

5. The saline solution packaging structure as described in claim 4, characterized in that: The top of the outer bag body (4) is provided with a protruding piece (5), and the top of the protruding piece (5) is provided with a plurality of first tear-out openings (6) arranged along the length direction of the outer bag body (4).

6. The saline solution packaging structure as described in claim 5, characterized in that: The inner bag (1), the outer bag (4), the connecting strip (8), and the protruding piece (5) are all made of plastic and are integrally molded.

7. The saline solution packaging structure as described in claim 1, characterized in that: The lower part of one side of the outer surface of the inner bag (1) is provided with a second tear-out opening (10) that is arranged along its width direction.