A fast sealing medical waste bag

Abstract

The utility model relates to medical instrument technical field provides a kind of fast seal medical waste bag, including outer bag, the inner layer of outer bag is adhered with anti-puncture layer, the upper end of anti-puncture layer is formed with passageway to outer bag, pull rope is penetrated in passageway, the upper end of passageway is provided with several transverse gas-permeable hole, the front and rear side of outer bag inner wall is provided with adhesive layer;The fast seal medical waste bag provided by the utility model tears off release paper on adhesive layer to adhere outer bag inner wall, presses two sealing strips and is pressed together, while tightening pull rope, the air in bag is discharged from gas-permeable hole, the operation of whole can make bag mouth interlock, it is more convenient to operate, also reduce the floor space of waste bag;By setting anti-puncture layer, improve the anti-puncture of medical waste bag whole, even if the breakage of accidental medical waste bag, medical waste will be blocked by anti-puncture layer 2 to avoid leakage.

Description

Technical Field

[0001] This utility model relates to the technical field of medical devices, and in particular to a quick-seal medical waste bag. Background Technology

[0002] Medical waste bags are plastic bags specifically designed for collecting and packaging medical waste. Medical waste refers to waste generated during medical activities in medical institutions, clinics, laboratories, etc. Hospitals have specially equipped sharps containers for medical waste such as IV needles and syringe needles. Current technology for sealing medical waste bags mainly uses strapping / reel-in straps. While this technology is low-cost, it is relatively cumbersome to operate (requiring wrapping, knotting, or the use of specialized tools). The main problems with this sealing method are the tedious process of repeatedly wrapping and tightening the bag opening before using strapping; the inconvenience of air escaping from the bag causes it to bulge, taking up a lot of space and making transportation and storage inconvenient; and there is still room for optimization in the medical waste disposal process to improve safety. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a quick-seal medical waste bag, which solves the problems mentioned in the background section.

[0004] The technical solution of this utility model is as follows:

[0005] A quick-sealable medical waste bag includes an outer bag, an inner layer of which is bonded with a puncture-resistant layer. The upper end of the puncture-resistant layer forms a channel with the outer bag, through which a drawstring passes. Several horizontally oriented ventilation holes are provided at the upper end of the channel. The front and back sides of the inner wall of the outer bag are provided with adhesive layers covered with release paper. The upper ends of the two adhesive layers are respectively provided with a first sealing strip and a second sealing strip that can cooperate with each other.

[0006] Furthermore, the first sealing strip and the second sealing strip are fixedly connected to the strip on the inner wall of the outer bag, and the first sealing strip and the second sealing strip are respectively fixedly connected with a first oblique tooth and a second oblique tooth that can lock each other.

[0007] Furthermore, the first helical tooth has a groove, and the end of the second helical tooth is fixedly connected with a barb that interlocks with the groove.

[0008] Furthermore, the angle between the working inclined surface of the barb and the first and second helical teeth is set to 12°, and the locking surface of the groove is set to a vertical surface, forming a mechanical hard lock with the barb.

[0009] Furthermore, the outer bag is made of polyethylene material, and the puncture-resistant layer is made of HDPE woven mesh.

[0010] Compared with the prior art, the beneficial effects of the technical solution provided by this utility model are as follows: by tearing off the release paper on the adhesive layer to bond the inner wall of the outer bag, pressing the two sealing strips to seal them, and tightening the drawstring while the air inside the bag is discharged from the vent, the overall operation can make the bag opening interlocked, making the operation more convenient and reducing the space occupied by the garbage bag; by setting a puncture-proof layer, the overall puncture resistance of the medical waste bag is improved, and even if the medical waste bag is accidentally damaged, the medical waste will be blocked by the puncture-proof layer to prevent leakage. Attached Figure Description

[0011] Figure 1 A diagram illustrating the unfolding of a quick-seal medical waste bag;

[0012] Figure 2 This is a schematic diagram of the sealing strip assembly;

[0013] Figure 3 A magnified view of A

[0014] In the diagram: 1. Outer bag, 2. Puncture-resistant layer, 3. Through passage, 4. Drawstring, 5. Ventilation hole, 6. Adhesive layer, 7. First sealing strip, 72. First oblique tooth, 73. Groove, 8. Second sealing strip, 81. Second oblique tooth, 82. Barb. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0016] As shown in Figures 1-3, a quick-seal medical waste bag includes an outer bag 1 made of polyethylene material. The outer bag 1 has a seamless cylindrical design with heat-pressed reinforcing ribs at the bottom (the outer bag 1 can use existing yellow medical waste bags). An anti-puncture layer 2 is bonded to the inner layer of the outer bag 1. The anti-puncture layer 2 is an HDPE woven mesh with a diamond-shaped grid structure. The anti-puncture layer 2 is heat-fused to the inner wall of the outer bag 1 (the anti-puncture layer 2 can use agricultural shade netting to reduce overall cost). By setting the anti-puncture layer 2, the overall puncture resistance of the medical waste bag is improved. Even if the medical waste bag is accidentally damaged, the medical waste bag can still be sealed. Medical waste is also blocked by the puncture-resistant layer 2 to prevent leakage. The height of the puncture-resistant layer 2 is less than the height of the outer bag 1. The upper end of the puncture-resistant layer 2 forms a passage 3 with the outer bag 1. The top of the puncture-resistant layer 2 and the un-heat-fused part of the outer bag 1 form a through passage 3. A pull rope 4 passes through the passage 3. The cross-sectional diameter of the pull rope 4 is the same as the diameter of the passage 3. A certain length of operating section is reserved at both ends of the pull rope 4. The operating section forms a ring shape to facilitate medical staff to pick up the waste bag. The pull rope 4 is made of the same material as the outer bag 1. By using the pull rope 4, the bag opening shrinks into a gooseneck shape under the gravity of the medical waste. The neck shape enhances the sealing of the bag opening. Several horizontally oriented vents 5 are provided at the upper end of the passageway 3. These vents 5 are perforated using a CO2 laser, and a one-way venting membrane made of silicone is bonded to the perforated locations. The one-way venting membrane has a cross-shaped cut. When air remains inside the bag, pressing down on the bag causes the silicone membrane to deform and open the passage when the pressure reaches a certain threshold, allowing the gas to escape. After the pressure decreases, the membrane springs back and closes, preventing external air from entering. The vents 5 allow for the release of gas from the bag, preventing bulging during sealing. The front and back sides of the inner wall of the outer bag 1 are covered with release paper. The adhesive layer 6 has a strip-shaped structure. By setting the adhesive layer 6, the inner cavity of the garbage can be sealed with the adhesive layer 6, which can better squeeze out the gas in the bag when venting. When it is necessary to vent the gas, the bag body can be pressed by the rigid plate or the pull rope 4 can be pulled down, and the air in the inner cavity can be vented out through the vent hole 5. The upper ends of the two adhesive layers 6 are respectively provided with a first sealing strip 7 and a second sealing strip 8 that can cooperate with each other. The bag opening on the outer bag 1 can be sealed a second time through the first sealing strip 7 and the second sealing strip 8 can be interlocked.

[0017] like Figure 2 and Figure 3 As shown, the first sealing strip 7 is provided with a first oblique tooth 72, and the second sealing strip 8 is provided with a second oblique tooth 81. The first oblique tooth 72 and the second oblique tooth 81 can engage and lock with each other. The first oblique tooth 72 is provided with a groove 73, and the end of the second oblique tooth 81 is fixedly connected with a barb 82 that interlocks with the groove 73.

[0018] Specifically, both the first sealing strip 7 and the second sealing strip 8 are strip structures. The first sealing strip 7 and the second sealing strip 8 are made of TPE material with moderate hardness, high elasticity, and high wear resistance. The overall softness of TPE ensures that the garbage bag can be tied into a gooseneck shape, while the local rigidity and excellent resilience ensure that the first oblique tooth 72 and the second oblique tooth 81 maintain shape stability during bending deformation, and maintain the interlocking state of the groove 73 and the barb 82 through elastic recovery force. When bending causes the two meshing first oblique teeth 72 and second oblique teeth 81 to be subjected to a force that separates them: the tooth where the barb 82 is located will try to "spring back" to its original shape, thereby "hooking" the groove 73 more tightly, and the tooth wall where the groove 73 is located will also try to return to its original shape, maintaining the "wrapping" state of the barb 82. The entire meshing area will generate an elastic force that resists separation at the microscopic level. The first sealing strip 7 and the second sealing strip 8 are bonded to the inner wall of the outer bag 1 by heat pressing.

[0019] The first helical tooth 72 and the second helical tooth 81 are made of TPU material, which has the characteristics of high rigidity and resilience. It can provide the required local high rigidity for the first helical tooth 72 and the second helical tooth 81, ensuring that the tooth shape does not deform or break when subjected to force, friction, and bending. It also ensures that after the barb 82 is pressed into the groove 73, the TPU material can generate a strong restoring force, so that the barb 82 always "holds" the inner wall of the groove 73 and resists the tendency to separate during bending. The material of the barb 82 is the same as that of the first helical tooth 72 and the second helical tooth 81.

[0020] To ensure smooth tightening of the first sealing strip 7 and the second sealing strip 8 when pulled, automatic locking under reverse force (bending / pulling), and that the interlocking structure between the teeth does not disengage even when the bag opening is bound into a gooseneck shape, the angle between the working inclined surface of the barb 82 and the first inclined tooth 72 and the second inclined tooth 81 is set to 12° to ensure full contact of the meshing surfaces; the locking surface of the groove 73 is designed as a 90° vertical surface to form a mechanical hard lock with the barb 82; the tip of the barb is 40° to reduce insertion resistance;

[0021] When the first sealing strip 7 and the second sealing strip 8 are engaged: Press the bag opening from left to right, and the first helical tooth 72 contacts the inclined surface of the second helical tooth 81; with continuous pressure, the barb 82 slides into the groove 73; after rebound locking, the barb 82 returns to its original position after elastic deformation, forming a mechanical interlock.

[0022] The working process of the quick-sealable medical waste bag provided by this utility model is as follows:

[0023] Loading stage: When the amount of garbage reaches 3 / 4 of the bag capacity (national standard requirement), stop the disposal; tear off the release paper on the adhesive layer 6 on both sides, then seal the bag opening of the outer bag 1 through the adhesive layer 6, pull the pull rope 4 on both sides with both hands and pull it down, the gas in the bag will be naturally discharged through the vent 5 to avoid bulging.

[0024] Primary sealing: Press both sides of the bag opening with both hands, and the first sealing strip 7 and the second sealing strip 8 engage; the barb 82 is embedded in the groove 73;

[0025] Ultimate seal: When the operating sections on both sides of the pull rope 4 are lifted, the bag opening shrinks into a gooseneck shape under the gravity of the medical waste, strengthening the seal of the bag opening.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick-sealable medical waste bag, comprising an outer bag (1), characterized in that: The inner layer of the outer bag (1) is bonded with a puncture-resistant layer (2). The upper end of the puncture-resistant layer (2) forms a passage (3) with the outer bag (1). A pull rope (4) passes through the passage (3). Several horizontally placed ventilation holes (5) are provided at the upper end of the passage (3). The front and back sides of the inner wall of the outer bag (1) are provided with an adhesive layer (6) covered with release paper. The upper ends of the two adhesive layers (6) are respectively provided with a first sealing strip (7) and a second sealing strip (8) that can cooperate with each other.

2. The quick-sealable medical waste bag according to claim 1, characterized in that: The first sealing strip (7) is provided with a first oblique tooth (72), and the second sealing strip (8) is provided with a second oblique tooth (81). The first oblique tooth (72) and the second oblique tooth (81) can engage and lock with each other.

3. The quick-sealable medical waste bag according to claim 2, characterized in that: The first helical tooth (72) has a groove (73) and the end of the second helical tooth (81) is fixedly connected with a barb (82) that interlocks with the groove (73).

4. The quick-sealable medical waste bag according to claim 3, characterized in that: The angle between the working inclined surface of the barb (82) and the first helical tooth (72) and the second helical tooth (81) is set to 12°, and the locking surface of the groove (73) is set to a vertical surface, forming a mechanical hard lock with the barb (82).

5. The quick-sealable medical waste bag according to claim 1, characterized in that: The outer bag (1) is made of polyethylene material, and the stab-proof layer (2) is made of HDPE woven mesh.

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