Top bag
By using composite films of the same material to form the head bag body, combined with dialysis paper and easy-to-tear area design, the problem of uneven sterilization of head bags in the prior art is solved, and the effect of uniform heating and easy-to-tear is achieved.
Patent Information
- Application Number
- CN202421639601.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-07-11
AI Technical Summary
Due to the various components, the head bags in the prior art are composed of uneven heat during the sterilization process, and all-round sterilization cannot be achieved.
The first composite film and the second composite film of the same material are used to form the bag body, and the dialysis paper is sealed at the upper opening of the bag body to form a design that is prone to tear.
It realizes that all parts of the bag are heated evenly and supports multiple sterilization methods, avoiding the problem of incomplete sterilization. At the same time, the bag is easy to tear open and is environmentally friendly and recyclable.
Smart Images
Figure CN222780800U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical product packaging, in particular to a header bag. Background Art
[0002] Medical Tyvek head bags are mainly made of spunbond olefins formed by countless tiny polyethylene fibers. This unique spray-spinning technology can produce light and tough materials. Its material composition is generally a combination of Tyvek and composite film, which has the characteristics of not easy to deform, soft and smooth, light and tough, opaque, moisture-proof, water-stain-resistant, adhesive-free, strong bacteria barrier ability and good breathability.
[0003] However, the material structure of the mid-to-high-end sterilization series Tyvek header bags currently used in the medical packaging industry includes EVA-coated Tyvek combined with PE, or uncoated Tyvek combined with PET and composite PE, and a combination of multiple composite films. As a result, during the sterilization production of the header bags in the prior art, the bag body is prone to uneven heating, incomplete sterilization, and the bag body cannot be fully sterilized.
[0004] Therefore, the above technical problems need to be solved. Utility Model Content
[0005] In order to overcome the deficiencies of the prior art, the utility model proposes a header bag, which aims to solve the problem that the bag body of the header bag in the prior art is composed of multiple components, resulting in uneven heating of various parts of the bag body and inability to perform all-round and effective sterilization.
[0006] In order to solve the above technical problems, the basic technical solution proposed by the utility model is:
[0007] A head bag comprises a bag body and dialysis paper, wherein the bag body comprises a first composite film and a second composite film of the same material; the first composite film and the second composite film are sealed on both sides to form the bag body; the upper part of the bag body has an opening, the dialysis paper is sealed on the opening to cover the opening, and the lower part of the bag body is sealed.
[0008] Furthermore, the first composite film and the second composite film are HDPE films, PET films or PE films.
[0009] Furthermore, the lower part of the bag body also has a tearing opening.
[0010] Further, the first composite film and the second composite film are a single film layer;
[0011] The position where the single film layer is folded in half forms the bottom of the bag body.
[0012] Furthermore, after the first composite membrane and the second composite membrane are folded in half, part of the second composite membrane is covered by the first composite membrane, and another part of the second composite membrane is exposed above the top of the first composite membrane to form an extension portion, which is used to assemble with the dialysis paper.
[0013] Furthermore, the top portion along the length direction of the dialysis paper is sealed to the top of the extension portion, and the bottom of the dialysis paper is sealed to the top of the first composite membrane;
[0014] The two ends of the dialysis paper in the width direction are sealed at the two ends of the extension portion in the width direction.
[0015] Furthermore, the bottom of the dialysis paper extends outwardly to have an easy-to-tear area;
[0016] The tear surface of the easy-tear zone covers a partial area of the first composite film;
[0017] Both ends of the easy-tear zone in the width direction are respectively sealed to both ends of the first composite film in the width direction.
[0018] Furthermore, the bottom end of the easy-tear zone is 1-2 cm away from the junction of the dialysis paper and the first composite membrane.
[0019] The beneficial effects of the utility model are:
[0020] The technical solution of the utility model is a header bag, including a bag body and dialysis paper, the bag body includes a first composite film and a second composite film of the same material; the first composite film and the second composite film are sealed on both sides to form the bag body; the upper part of the bag body has an opening, the dialysis paper is sealed on the opening to cover the opening, and the lower part of the bag body is sealed. A header bag using the technical solution and the combination with Tyvek does not contain a coating, is easy to tear, and can be recycled. Since the first composite film and the second composite are made of the same material to support a variety of sterilization methods, the problem of uneven heating during sterilization and poor sterilization in the prior art is avoided. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic structural diagram of a header bag in Embodiment 1 of the present utility model;
[0022] Figure 2 The side structure diagram of the header bag of the first embodiment of the utility model is shown in FIG.
[0023] Figure 3 This is a schematic diagram of the side structure of the header bag of the second embodiment of the utility model;
[0024] Figure 4 It is a structural schematic diagram of the easy-tear area of the utility model;
[0025] Description of reference numerals:
[0026] 1-bag body, 11-first composite film, 12-second composite film, 13-extension part, 14-bottom, 15-opening, 16-storage space, 17-tear opening, 111, 121, 131-top, 2-dialysis paper 21-end, 22-bottom of dialysis paper, 23-one end, 24-the other end, 221-easy-tear area, 2211-tear surface, 2212-bottom end. DETAILED DESCRIPTION
[0027] The following will be combined with the attached Figure 1 To Attachment Figure 4 The technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] It should be noted that if the directions involved in the embodiments of the present invention are based on those shown in the drawings, if a certain posture changes, the directional indication will also change accordingly.
[0029] Header bags are widely used in the field of medical packaging, especially as breathable sterile packaging for medical devices. However, existing header bags are either made of multiple composite films, which makes it difficult to achieve all-round sterilization in different parts of the header bag, and difficult to recycle and reuse. The junction of Tyvek and the film is coated with EVA, which can easily lead to indirect contact of various macromolecular polymers into human tissues or blood vessels, endangering life, and another tearing hole needs to be opened at the Tyvek to tear the Tyvek open, making the production very cumbersome.
[0030] In this regard, the inventor provides a header bag, the bag body of which is made of the same material, so that the heating conditions of various parts of the bag body are consistent, and azimuthal sterilization can be achieved. It is also easy to tear, environmentally friendly and recyclable, does not contain EVA coating, and is easy to produce. It can effectively solve the problem that the header bag in the prior art cannot be recycled and reused in an environmentally friendly manner, and contains a coating so that large molecular polymers can indirectly contact and flow into human tissues or blood vessels, causing life-threatening problems.
[0031] like Figure 1 and Figure 3As shown, a header bag of the present technical solution includes a bag body 1 and dialysis paper 2, wherein the bag body 1 includes a first composite film 11 and a second composite film 12 of the same material; the first composite film 11 and the second composite film 12 are sealed on both sides to form the bag body 1; the upper part of the bag body 1 has an opening 15, the dialysis paper 2 is sealed on the opening 15 to cover the opening 15, and the lower part of the bag body 1 is sealed.
[0032] In this embodiment, the first composite film 11 and the second composite film 12 are HDPE films, PET films, or PE films.
[0033] Preferably, the first composite film 11 and the second composite film 12 are both made of HDPE film, which has the advantages of being easy to tear open in a straight line and recyclable, and is also suitable for a variety of sterilization methods, such as ethylene oxide, plasma, etc. In particular, it supports high-temperature steam sterilization at 121°C 30psi 30min. Since the first composite film 11 and the second composite film 12 of the bag body 1 are made of the same material, the sterilization conditions of the various parts of the bag body 1 are consistent when the bag body 1 is sterilized, thereby solving the problem in the prior art that the top bag is composed of multiple components, resulting in inconsistent sterilization conditions of various parts on the bag, which is prone to incomplete sterilization.
[0034] Furthermore, in order to facilitate the tearing of the header bag of the present technical solution in actual application to obtain the medical device in the bag, the lower part of the bag body 1 also has a tearing opening 17. Specifically, as Figure 1 As shown, the tearing opening 17 is located at the lower part of the bag body 1, on one side in the width direction thereof. The tearing opening 17 is provided for the purpose of facilitating the opening of the bag body 1 so that the user can conveniently access the medical devices placed in the bag body 1.
[0035] It should also be noted that, since the bag body 1 is made of a film of the same material, when the tearing hole 17 is opened, the side portions of the first composite film 11 and the second composite film 12 can be torn simultaneously along the tearing direction of the tearing hole 17, thereby opening the bag body 1. And since the present technical solution is made of a film of the same material, the first composite film 11 and the second composite film 12 can be torn more smoothly on both sides, thus avoiding the problem of one side being torn and the other side not being torn.
[0036] Further, such as Figure 3 As shown, the first composite film 11 and the second composite film 12 are a single film layer; the folded position of the single film layer forms the bottom 14 of the bag body 1 .
[0037] It should be understood that such a design can save the sealing process at the bottom 14 of the bag body 1 in other production links, simplify the production steps and improve production efficiency.
[0038] Furthermore, after the three sides of the bag body 1 are sealed to form a bag shape, the interior of the bag body 1 is hollow, and a storage space 16 for placing medical devices is formed therein, and the dialysis paper 2 covers the opening 15 so that the storage space 16 is in a closed state. The dialysis paper 2 is Tyvek paper, which is a porous material that cannot be easily penetrated by liquid water, oil, etc., but can be permeated by gas and water vapor, and has excellent waterproof and breathable properties.
[0039] In this embodiment, the first composite membrane 11 is located on the same side as the dialysis paper 2, and the second composite membrane 12 is located on the back of the first composite membrane 11. The first composite membrane 11 covers a portion of the second composite membrane 12. The bottom connection of the first composite membrane 11 and the second composite membrane 12 is an integrated structure, and then the two side ends of the first composite membrane 11 and the second composite membrane 12 are sealed. This saves the sealing process required to seal the bottom of the two composite membranes in the prior art during the production of the header bag of the present technical solution, thereby greatly improving the production efficiency.
[0040] It should be noted that, during production, the sealing process in the technical solution uses a method of first heat sealing and then cold sealing to bond the joints of the first composite membrane 11 and the second composite membrane 12 together. Similarly, the joints of the dialysis paper 2 and the first composite membrane 11 and the second composite membrane 12 are also bonded together by first heat sealing and then cold sealing. It should be understood that the use of this method of first heating and then cooling makes the sealed joints well bonded and does not produce holes.
[0041] Further, such as Figure 1 and Figure 3 As shown, after the first composite membrane 11 and the second composite membrane 12 are folded in half, part of the second composite membrane 12 is covered by the first composite membrane 11, and another part of the second composite membrane 12 is higher than the top 111 of the first composite membrane 11 and exposed to form an extension portion 13, and the extension portion 13 is used to assemble with the dialysis paper 2.
[0042] Specifically, the top 21 portion of the dialysis paper 2 along the length direction is sealed at the top 131 of the extension portion 13, and the bottom 22 of the dialysis paper 2 is sealed at the top 111 of the first composite membrane 11; the two ends of the dialysis paper 2 in the width direction are sealed at the two ends of the extension portion 13 in the width direction.
[0043] It should be understood that with such a design, the dialysis paper 2 can well cover the opening 15, thereby closing the storage space 16, that is, the dialysis paper 2 blocks the storage space 16 from accessing the outside world, so that the storage space 16 is in a sealed and sterile environment, which allows the items placed in the storage space 16 to be stored in a sterile manner.
[0044] Furthermore, the area where the dialysis paper 2 is assembled on the bag body 1 using part of the second composite film 12 is the extension part 13, which can save the material of the dialysis paper 2. The four peripheries of the dialysis paper 2 are respectively sealed on the extension part 13 and the first composite film 11 to form a stable quadrilateral structure, which enables the dialysis paper 2 to be firmly assembled on the bag body 1.
[0045] In addition, the four edges of the dialysis paper 2 mounted on the bag body 1 are flush with the four edges of the bag body 1 , which prevents the four edges of the dialysis paper 2 from warping up easily.
[0046] Furthermore, Figure 1 As shown, the bottom 22 of the dialysis paper 2 extends outward to form an easy-tear area 221; the tear surface 2211 of the easy-tear area 221 covers a partial area of the first composite film 11; the two ends of the easy-tear area 221 in the width direction are respectively sealed at the two ends of the first composite film 11 in the width direction.
[0047] When in use, the easy-tear area 221 is opened to expose the storage space 16 to restore communication with the outside, so that the bag body 1 can be opened to obtain the items placed in the storage space 16.
[0048] Preferably, Figure 4 As shown, the end of the bottom 2212 of the easy-tear area 221 is 1-2 cm away from the junction D between the dialysis paper 2 and the first composite membrane 11 .
[0049] It should be understood that the distance between the bottom end 2212 of the easy-tear zone 221 and the junction D of the dialysis paper 2 and the first composite membrane 11 is 1-2 cm, which is in line with the structure of the human hand, so that the user can easily tear the easy-tear zone 221. In addition, it can also effectively save resources, avoid the easy-tear zone 221 being too long to waste the material of the dialysis paper 2, and being too short to be difficult to tear, which easily leads to the problem of inconvenient operation.
[0050] It should be noted that, in this embodiment, the two ends of the dialysis paper 2 in the width direction are respectively sealed with the two sides of the width of the second composite membrane 12, and the two ends of the dialysis paper 2 in the length direction are respectively sealed with the top of the first composite membrane 11 and the second composite membrane 12, so that the dialysis paper 2 is assembled on the bag body 1.
[0051] In addition, the tearing opening 17 mentioned above can be provided at the bottom of the bag body 1 according to actual needs, so as to facilitate opening the bottom of the bag body 1 to obtain items in the bag body 1 when in use.
[0052] To sum up, a head bag of the present technical solution is made of high-density polyethylene, which supports recycling and secondary use; and supports a variety of sterilization methods, in particular, it is suitable for high-temperature steam sterilization at 121°C 30psi 30min. Medical devices that need to be disinfected, such as rubber stoppers, aluminum caps, bottle caps, stainless steel tools, filling needles, silicone tubes and syringe bottles, are placed in the storage space 16 for direct high-temperature sterilization.
[0053] In addition, since the present technical solution is made of a film layer of the same material, each part of the bag body 1 can be heated evenly, effectively adapting to a variety of sterilization methods. Moreover, the joint between the dialysis paper 2 and the bag body 1 can be clean and easy to tear open without using an EVA coating, effectively avoiding the indirect contact of various macromolecular polymers into human tissues or blood vessels, which endangers life. In particular, it solves the problem that the head bag in the prior art needs to be cut separately during production, and the head bag needs to be sealed in both the width and length directions, and the production process is very cumbersome.
[0054] According to the disclosure and teaching of the above description, the technical personnel in the field to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.
Claims
1. A header bag, characterized in that: It includes a bag body and dialysis paper, wherein the bag body includes a first composite film and a second composite film of the same material; the first composite film and the second composite film are sealed on both sides to form the bag body; the upper part of the bag body has an opening, the dialysis paper is sealed on the opening to cover the opening, and the lower part of the bag body is sealed.
2. A header bag as claimed in claim 1, characterized in that: The first composite film and the second composite film are HDPE films, PET films or PE films.
3. A header bag as claimed in claim 1, characterized in that: The lower part of the bag body is also provided with a tearing opening.
4. A header bag as claimed in claim 1, characterized in that: The first composite film and the second composite film are a single film layer; The position where the single film layer is folded in half forms the bottom of the bag body.
5. A header bag as claimed in claim 4, characterized in that: After the first composite membrane and the second composite membrane are folded in half, part of the second composite membrane is covered by the first composite membrane, and another part of the second composite membrane is exposed above the top of the first composite membrane to form an extension portion, which is used to assemble with the dialysis paper.
6. A header bag as claimed in claim 5, characterized in that: The top portion along the length direction of the dialysis paper is sealed to the top of the extension portion, and the bottom of the dialysis paper is sealed to the top of the first composite membrane; The two ends of the dialysis paper in the width direction are sealed at the two ends of the extension portion in the width direction.
7. The header bag according to claim 1, characterized in that: The bottom of the dialysis paper extends outward to form an easy-to-tear area; The tear surface of the easy-tear zone covers a partial area of the first composite film; Both ends of the easy-tear zone in the width direction are respectively sealed to both ends of the first composite film in the width direction.
8. A header bag as claimed in claim 7, characterized in that: The bottom end of the easy-tear zone is 1-2 cm away from the junction of the dialysis paper and the first composite membrane.