Infusion bag with built-in leakage-proof blocking piece
By setting up a leak-proof baffle in the infusion bag interface and using the coordination of support columns and grooves, the leakage problem when pulling out the infusion device is solved, higher sealing and simplified operation are achieved, and environmental pollution and accident risks are reduced.
Patent Information
- Application Number
- CN202421584168.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-05
AI Technical Summary
Existing infusion bags are prone to leakage when pulling out the infusion port, resulting in environmental pollution and accidents, and the operation is cumbersome.
The leak-proof baffle is installed in the infusion bag interface, including the support column and the baffle. The support column cooperates with the grooves matching the inner wall, and automatically falls back and blocks the interface by using the deformation performance of the rubber material to reduce liquid dripping.
It improves the sealing of the infusion bag interface, reduces liquid drip, simplifies operating procedures, and reduces the workload of nursing staff and the risk of environmental pollution.
Smart Images
Figure CN223126894U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to an infusion bag with an internal leakage prevention baffle. Background Art
[0002] At present, most of the infusion bags used in the emergency room are Baxter infusion bags. The Baxter infusion bag adopts a three-layer co-extruded material combination. The inner layer material is low-density polyethylene, which is not easy to break, ensuring the stability and safety of the infusion bag during use; the middle layer material is ethylene-vinyl acetate resin, which has good pressure resistance and can withstand the high pressure of infusion; the outer layer material is linear low-density polyethylene, which has good wear resistance and is not easily affected by the external environment. Based on the excellent performance of the Baxter large infusion bag, the Baxter large infusion bag is widely used in the medical industry, providing a reliable guarantee for the infusion treatment of patients.
[0003] The traditional Baxter infusion bag is provided with two ports. One end is a plastic interface that can only be used to connect a polyethylene infusion set, and the other end is a rubber interface that can be used for adding medicine and a steel needle infusion set. To reduce the probability of needlestick injuries to clinical medical staff, the use of steel needle infusion sets is no longer recommended. However, when the plastic interface end of the Baxter infusion bag is pulled out, there will be a liquid leakage situation, and the remaining replenishing fluid dripping to the ground will cause environmental pollution, and at the same time, it is also easy to cause accidental events such as accidental falls.
[0004] During the infusion process, when part of the replenishing fluid needs to be paused, the nursing staff needs to clamp it with a hemostat and then pull out the infusion bag interface. The operation is very cumbersome, not only increasing the workload of the nursing staff, but also bringing many inconveniences to clinical work.
[0005] Therefore, it is urgent to develop a new type of infusion bag that can reduce the liquid leakage amount when pulling out the infusion bag interface. Content of the Utility Model
[0006] The purpose of the utility model is to provide an infusion bag with an internal leakage prevention baffle to overcome the defect that the existing infusion bag leaks liquid when pulling out the infusion bag interface.
[0007] The purpose of the utility model can be realized by the following technical solutions:
[0008] An infusion bag with an internal leakage prevention baffle, including an infusion bag body. The infusion bag body includes an infusion bag outer layer and an infusion bag inner layer. An infusion bag interface penetrating through the infusion bag outer layer and the infusion bag inner layer is provided on the infusion bag body, and a leakage prevention baffle capable of blocking liquid dripping is arranged in the infusion bag interface;
[0009] The leakage prevention baffle includes a support column and a baffle installed on the support column to block the infusion bag interface;
[0010] The root of the support column is installed on the inner wall of the infusion bag interface. The abutting end of the support column can abut against the inner wall of the infusion bag interface, and a groove matching the shape of the abutting end of the support column is formed on the inner wall of the infusion bag interface.
[0011] Furthermore, both the concave surface of the groove and the abutting end of the support column are arc-shaped curved surfaces, so that the abutting end of the support column can better cooperate with the concave surface of the groove, thereby further improving the support performance after the anti-leakage flap falls, so as to reduce liquid dripping.
[0012] Furthermore, the flap is fixedly installed on the support column.
[0013] Furthermore, the infusion bag interface is a hollow cylindrical structure.
[0014] Furthermore, both the support column and the flap are made of rubber material with deformation performance.
[0015] Furthermore, the flap is an elastic flap, which is adapted to the inner circle shape of the infusion bag interface, and the diameter of the flap in its natural state is greater than the inner diameter of the infusion bag interface. The infusion bag interface is blocked through the compression deformation performance of the flap itself.
[0016] Furthermore, the support column is an elastic support column, and the length of the support column in its natural state is greater than the inner diameter of the infusion bag interface, so that the support column in its natural state can abut against the inner wall of the infusion bag interface to block liquid dripping.
[0017] Furthermore, the number of the grooves is at least one, and the central height of at least one of the grooves is lower than the central height of the root of the support column.
[0018] Furthermore, the groove includes a first groove and a second groove.
[0019] Furthermore, the central height of the first groove is lower than the central height of the root of the support column, and the central height of the second groove is higher than the central height of the root of the support column.
[0020] Furthermore, the first groove and the second groove are arranged at intervals on the inner wall of the infusion bag interface.
[0021] Furthermore, the inner wall thickness of the infusion bag interface below the first groove is greater than the inner wall thickness between the first groove and the second groove, which can provide a larger abutting area when the lower end of the anti-leakage flap abuts against the first groove, thereby greatly reducing the possibility of the anti-leakage flap bending and falling downward due to gravity or other accidental factors.
[0022] Furthermore, a medicine adding interface is also provided on the infusion bag body, which can be used by medical staff to add corresponding medicines to the liquid in the infusion bag body.
[0023] Compared with the prior art, the utility model has the following beneficial effects:
[0024] (1) In the infusion bag of the utility model, a leak-proof baffle capable of blocking liquid dripping is arranged inside the infusion bag interface. When the infusion set interface is pulled out, the leak-proof baffle automatically falls back and abuts against the inner wall of the infusion bag interface, thereby improving the sealing performance between the leak-proof baffle and the inner wall of the infusion bag interface to reduce liquid dripping.
[0025] (2) A groove is formed on the inner wall of the infusion bag interface of the utility model. The arc-shaped surface of the inner wall of the infusion bag interface can match the shape of the abutting end of the support column of the leak-proof baffle, enabling the abutting end of the support column to better cooperate with the concave surface of the groove, thereby further improving the sealing performance to reduce liquid dripping.
[0026] (3) Considering that the liquid volume in the inner layer of the infusion bag will affect the falling height of the leak-proof baffle, the utility model is designed with grooves respectively above and below the horizontal height of the support column of the leak-proof baffle to ensure that the leak-proof baffle has a suitable falling space under different liquid volumes.
[0027] (4) By regulating the wall thickness of the groove area, the utility model can provide a larger abutting area when the support column abuts against the first groove, thereby greatly reducing the possibility of the leak-proof baffle bending downward and falling off due to gravity or other accidental factors.
[0028] (5) The structure of the infusion bag of the utility model is exquisitely designed, facilitating large-scale manufacturing and use, and can be widely applied to clinical nursing operations. Description of the Drawings
[0029] Figure 1 It is a schematic diagram of the overall structure of the infusion bag according to Embodiment 1 of the utility model.
[0030] Figure 2 It is a top view of the leak-proof baffle according to Embodiment 2 of the utility model.
[0031] Figure 3 It is a schematic diagram of the structure after the support column rotates upward according to Embodiment 2 of the utility model.
[0032] Figure 4 It is a schematic diagram of the support column abutting against the first groove according to Embodiment 3 of the utility model.
[0033] Figure 5 It is a schematic diagram of the support column abutting against the second groove according to Embodiment 3 of the utility model.
[0034] Figure 6 It is a schematic diagram of the structure of the medicine adding interface according to Embodiment 4 of the utility model.
[0035] Explanation of the marks in the figure:
[0036] 1 - Infusion bag body, 11 - Outer layer of the infusion bag, 12 - Inner layer of the infusion bag, 2 - Infusion bag interface, 21 - Groove, 211 - First groove, 212 - Second groove, 3 - Leak - proof baffle, 31 - Support column, 311 - Contact end, 32 - Baffle, 4 - Medication addition interface, 5 - Infuser interface. Detailed implementation mode
[0037] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present utility model, and provides a detailed implementation method and specific operation process, but the protection scope of the present utility model is not limited to the following embodiments.
[0038] In the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0039] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0040] Embodiment 1:
[0041] This embodiment provides an infusion bag with a built - in leak - proof baffle, including an infusion bag body 1. The infusion bag body 1 includes an outer layer 11 of the infusion bag and an inner layer 12 of the infusion bag. An infusion bag interface 2 that penetrates the outer layer 11 and the inner layer 12 of the infusion bag is provided on the infusion bag body 1, and a leak - proof baffle 3 that can block the dripping of liquid is provided inside the infusion bag interface 2.
[0042] The leak-proof baffle 3 of this embodiment includes a support column 31 and a baffle 32 mounted on the support column 31 that can block the infusion bag interface 2. The root of the support column 31 is installed on the inner wall of the infusion bag interface 2, and the abutting end 311 of the support column 31 can abut against the inner wall of the infusion bag interface 2. A groove 21 that matches the shape of the abutting end 311 of the support column 31 is provided on the inner wall of the infusion bag interface 2.
[0043] Embodiment 2:
[0044] This embodiment provides an infusion bag with a built-in leak-proof baffle, which includes an infusion bag body 1. The infusion bag body 1 includes an outer layer 11 and an inner layer 12 of the infusion bag. An infusion bag interface 2 that penetrates the outer layer 11 and the inner layer 12 of the infusion bag is provided on the infusion bag body 1, and a leak-proof baffle 3 that can block the dripping of liquid is provided in the infusion bag interface 2. The root of the leak-proof baffle 3 is fixedly connected to the inner wall of the infusion bag interface 2, and the abutting end 31 of the leak-proof baffle 3 can abut against the inner wall of the infusion bag interface 2. The leak-proof baffle 3 includes a support column 31 and a baffle 32 mounted on the support column 31 that can block the infusion bag interface 2. The root of the support column 31 is installed on the inner wall of the infusion bag interface 2, and the root of the support column 31 is fixedly connected to the inner wall of the infusion bag interface 2. The abutting end 311 of the support column 31 can abut against the inner wall of the infusion bag interface 2, and a groove 21 that matches the shape of the abutting end 311 of the support column 31 is provided on the inner wall of the infusion bag interface 2.
[0045] In this embodiment, both the concave surface of the groove 21 and the abutting end 311 of the support column 31 are arc-shaped curved surfaces. The concave surface of the groove 21 and the abutting end 311 of the support column 31 are in shape adaptation, so that the support column 31 of the leak-proof baffle 3 can better cooperate with the concave surface of the groove 21, thereby further improving the support performance and sealing property to reduce the dripping of liquid.
[0046] The liquid bag interface 2 of this embodiment is a hollow cylindrical structure with a certain thickness on its inner wall. Both the support column 31 and the baffle 32 are made of rubber material with deformation performance. The support column 31 is an elastic support column, and the baffle 32 is an elastic baffle. As Figure 2 shown (the dotted line in the figure represents the state where the support column 31 is below the baffle 32), the baffle 32 is in shape adaptation with the inner circle of the infusion bag interface 2, and the diameter of the baffle 32 in its natural state is greater than the inner diameter of the infusion bag interface 2. The baffle 32 seals the infusion bag interface 2 through its own compression deformation performance. The support column 31 is a columnar structure as a whole, and the total length of the support column 31 in its natural state is greater than the inner diameter of the infusion bag interface 2, so that the leak-proof baffle 3 can abut against the inner wall of the infusion bag interface 2. As Figure 3 shown, when an infusion set interface 5 is inserted, the infusion set interface 5 can push the support column 31 of the leak-proof baffle 3 to rotate upward around its root, and then the infusion set interface 5 can be clamped with the infusion bag interface 2 to carry out normal infusion.
[0047] Example 3:
[0048] This embodiment provides an infusion bag with a built-in anti-leakage baffle, including an infusion bag body 1. The infusion bag body 1 includes an outer layer 11 of the infusion bag and an inner layer 12 of the infusion bag. An infusion bag interface 2 that penetrates through the outer layer 11 and the inner layer 12 of the infusion bag is provided on the infusion bag body 1, and an anti-leakage baffle 3 that can block the dripping of liquid is provided in the infusion bag interface 2. The anti-leakage baffle 3 includes a support column 31 and a baffle 32 installed on the support column 31 that can block the infusion bag interface 2. The root of the support column 31 is installed on the inner wall of the infusion bag interface 2, and the abutting end 311 of the support column 31 can abut against the inner wall of the infusion bag interface 2. A groove 21 that matches the shape of the abutting end 311 of the support column 31 is provided on the inner wall of the infusion bag interface 2.
[0049] The groove 21 in this embodiment includes a first groove 211 and a second groove 212. Among them, the central height of the first groove 211 is lower than the central height of the root of the support column 31, and the central height of the second groove 212 is higher than the central height of the root of the support column 31, that is Figure 4 h1 > h2 in. Considering that the liquid volume in the inner layer 12 of the infusion bag will affect the falling height of the anti-leakage baffle 3. For example, when the liquid volume is full, affected by a greater gravity, the support column 31 of the anti-leakage baffle 3 will fall into the lower first groove 211; when the liquid volume is less, affected by a smaller gravity, the support column 31 of the anti-leakage baffle 3 may fall into the upper second groove 212 (as Figure 5 shown, only the state of the support column 31 at this time is shown).
[0050] The first groove 211 and the second groove 212 in this embodiment are arranged at intervals on the inner wall of the infusion bag interface 2. The inner wall thickness of the infusion bag interface 2 below the first groove 211 is greater than the inner wall thickness between the first groove 211 and the second groove 212, that is Figure 4 d1 > d2 in. Since the central height of the first groove 211 is lower than the central height of the root of the support column 31, this design can give a larger abutting area when the lower end of the support column 31 abuts against the first groove 211, thereby greatly reducing the possibility of the anti-leakage baffle 3 bending and falling off further downward due to gravity or other accidental factors.
[0051] Example 4:
[0052] As Figure 6 shown, the difference from Example 1 is that a medicine adding interface 4 is further provided on the infusion bag body 1 of this embodiment, which can be used by medical staff to add corresponding medicines to the liquid in the infusion bag body 1.
[0053] The above description of the embodiments is provided to enable those of ordinary skill in the art to understand and use the utility model. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative efforts. Therefore, the utility model is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the utility model according to the disclosure of the utility model should be within the protection scope of the utility model.
Claims
1. An infusion bag with a built-in anti-leakage baffle, comprising an infusion bag body (1), wherein the infusion bag body (1) includes an outer layer of the infusion bag (11) and an inner layer of the infusion bag (12), and is characterized in that, An infusion bag interface (2) that penetrates through the outer layer (11) and the inner layer (12) of the infusion bag is provided on the infusion bag body (1), and a leak-proof flap (3) that can block the dripping of liquid is provided in the infusion bag interface (2); The leak-proof flap (3) includes a support column (31) and a flap (32) installed on the support column (31) that can block the infusion bag interface (2); the root of the support column (31) is installed on the inner wall of the infusion bag interface (2), and the abutting end (311) of the support column (31) can abut against the inner wall of the infusion bag interface (2). A groove (21) that matches the shape of the abutting end (311) of the support column (31) is provided on the inner wall of the infusion bag interface (2); both the concave surface of the groove (21) and the abutting end (311) of the support column (31) are arc-shaped curved surfaces; The infusion bag interface (2) is a hollow cylindrical structure; the flap (32) is an elastic flap, which is adapted to the inner circle shape of the infusion bag interface (2), and the diameter of the flap (32) in its natural state is greater than the inner diameter of the infusion bag interface (2); the support column (31) is an elastic support column, and its length in the natural state is greater than the inner diameter of the infusion bag interface (2); The number of the grooves (21) is at least one, and the central height of at least one of the grooves (21) is lower than the central height of the root of the support column (31); the groove (21) includes a first groove (211) and a second groove (212), wherein the central height of the first groove (211) is lower than the central height of the root of the support column (31), and the central height of the second groove (212) is higher than the central height of the root of the support column (31).
2. The infusion bag with an internal anti-leakage baffle according to claim 1, characterized in that, The first groove (211) and the second groove (212) are arranged at intervals on the inner wall of the infusion bag interface (2).
3. The infusion bag with an internal leak-proof baffle according to claim 2, characterized in that, The inner wall thickness of the infusion bag interface (2) below the first groove (211) is greater than the inner wall thickness between the first groove (211) and the second groove (212).
4. The infusion bag with a built-in leak-proof baffle according to claim 1, characterized in that, A medicine adding interface (4) is also provided on the infusion bag body (1).