JP5805124B2 - Sterilization and storage packaging materials - Google Patents

Description

  The present invention is an article such as a medical instrument that is simple and useful for treatment such as sterilization, sterilization, disinfection, sterilization, and storage after treatment by integrally enclosing an article such as a medical device requiring hygiene management in a packaging material. It relates to a packaging material for sterilization.

In medical devices that require hygiene management, a sterilization is performed to prevent secondary infection due to contamination of the medical devices, and the bacteria attached to the medical devices are killed.
In sterilization, in general, many methods have been adopted in which medical devices are sterilized or individually stored using sterilization bags. When opening the sterilization bag, care must be taken not to touch the medical device directly, but the sterilized product is housed in a hose-shaped protective sheet and is released from the protective sheet by the intermittent peeling function. A dispenser has been proposed (Patent Document 1).
Particularly in hospitals, in order to sterilize many medical devices at once, sterilization is performed using a container with a lid made of stainless steel or resin having openable / closable vents, and gas sterilization of medical instruments and medical materials, etc. In addition, a hermetic container has been proposed that can be re-sealed after opening (Patent Document 2). Also, sterilization is performed by packaging with a disposable packaging material such as a nonwoven fabric or a sterilization bag, but a laminated body composed of a polyamide layer / inorganic thin film / polyester layer (Patent Document 3) or a polyolefin-based ultra-fine sheath type composite Sterile packaging materials such as wet nonwoven fabrics (Patent Document 4) made of fibers have been proposed.
Using these packaging materials, for example, by putting a medical device to be sterilized in a container, closing the lid, sterilizing by introducing sterilizable gas or steam from the vent, and then closing the vent Sterilization is performed. In general, a method in which a plurality of medical devices are directly wrapped with a non-woven packaging material, sterilized, and stored as it is is often used. As another method, many methods are employed which are sealed in a container (generally called a sterilization bag) made of a sterilization packaging material and stored after sterilization. Furthermore, it has been proposed that a sterilized medical instrument is stored in a double-structured package composed of an outer container and an inner envelope so that the medical instrument inside is not contaminated even after the outer container is opened ( Patent Document 5).

JP-A-58-30954, JP 2002-68307 A Japanese Patent Application Laid-Open No. 2004-1251 Japanese Patent Laid-Open No. 7-119073 JP-A-3-168150

As described above, hygiene management has been conventionally performed for sterilization and storage of medical instruments. However, when the work itself is complicated due to manual labor, or hygiene due to complicated instruments in other varieties. In some cases, there was a lack of control. For example, it is inevitable that a medical instrument is stored in a container or packaging material and sterilized, and then the container or packaging material is removed from the sterilizer and moved to a storage location to come into contact with the container with contaminated hands. In some cases, the outer surface of the container is contaminated, and there is a risk of contamination of medical instruments contained in the container. Similarly, when a sterilized container is moved from a storage place to a use place such as an operating room or when the container is opened, there is a risk of contamination.
There has been a demand for a packaging material that can easily sterilize and store medical instruments while preventing contamination of such sterilized containers during movement. The inventors of the present invention have reached the present invention by eagerly pursuing research and development to solve these conventional problems, and by using a plurality of sheets, it is easy for medical instruments to be contaminated after sterilization. The present invention provides a packaging material or a packaging method that can be prevented.
In addition, the present invention is not limited to medical instruments, and provides a sterilization and storage packaging material or packaging method and storage method that can be applied to articles that require various sterilization treatments.

The present invention is constituted by the following technical matters.
(1) A plurality of sheets of a size that can be folded at the free end to cover an article such as a medical device are overlapped, and these sheets are joined by a joining portion in the vicinity of the center portion, and the outer end of each sheet is no free ends that are not constrained to a packaging material made of a non-transmitting surface near the central portion of the sheet is impermeable to microbes and liquids, placing articles such as medical instruments on the non-transmissive surface that does not transmit microorganisms and liquid and, the article was coated by bending a free end of the inner sheet, and further thereon, by coating by bending a free end of the outer sheet, in order to enclose the article was over and over again covered by the sheet A packaging material for sterilization and storage of articles such as medical instruments used .
(2) An inner sheet that directly covers an article such as a medical instrument that constitutes a plurality of sheets of a size that can be folded to cover an article such as a medical instrument by bending the free end, and further covering the top covered with the inner sheet The outer sheets are overlapped, and both sheets are joined by a joint near the center of the outer sheet. The outer ends of both sheets form a free unconstrained end, and the vicinity of the center of the inner sheet does not transmit microorganisms and liquid. A packaging material for sterilization and storage of an article such as the medical instrument described in (1) above, which has a transmission surface.
(3) Directly covering an article such as a medical instrument that constitutes a plurality of sheets of a size capable of covering an article such as a medical instrument by bending the connecting line, the non-transparent surface, and the free end that form the coupling part. (1) or (2) above, wherein the inner sheet and the outer sheet that covers the inner sheet are further rectangular, and the connecting line forming the connecting portion is parallel to the edges of the outer sheet and the inner sheet. A packaging material for sterilization and storage of articles such as medical instruments described in 1.
(4) Inner covering directly an article such as a medical instrument constituting a plurality of sheets of a size capable of covering an article such as a medical instrument by bending the connecting line forming the connecting portion, the non-transparent surface and the free end . ( 3 ) The outer sheet further covering the sheet and the inner sheet covered with the sheet is a quadrangle, and the angle formed between the bonding line forming the coupling portion and the edge of the outer sheet and the inner sheet is less than 90 degrees. Packaging materials for sterilization and storage of medical equipment and other items.
(5) The packaging material for sterilization and storage of articles such as the medical instrument according to the above (4), wherein the angle formed by the connecting line forming the connecting portion and the outer sheet and the end of the inner sheet is 45 degrees.
(6) The medical instrument according to any one of (1) to (5), wherein a non-permeable surface that does not transmit microorganisms and liquid is provided near the center of any sheet and covers the joint. Packaging materials for sterilization and storage of goods such as
(7) For sterilization and storage of medical instruments and the like according to any one of (1) to ( 7 ) above, wherein a non-permeable surface that does not transmit microorganisms and liquid is provided near the center of the innermost sheet. Packaging material.
(8) Any of (1) to (7) above, wherein the sheet and the non-permeable surface are made of a material that can withstand washing, disinfection and sterilization, and can be used repeatedly by washing, disinfection and sterilization. A packaging material for sterilization and storage of articles such as medical instruments described in 1.
(9) A packaging material for sterilization and storage of an article such as the medical instrument according to any one of (1) to (8), wherein the non-permeable surface is waterproof.

(10) A plurality of sheets of a size that can be folded over the free end to cover an article such as a medical device are overlapped, and the sheets are joined by a joining portion in the vicinity of the center, and the outer ends of the respective sheets are Prepare a packaging material having a non-constrained free end, and a non-permeable surface that does not transmit microorganisms and liquid near the center of the sheet . placing the article, and covering the article by bending the free end of the inner sheet, and further on it, and sealed with many layers covering the article by the sheet coated by bending the free end of the outer sheet A method for sterilizing an article such as a medical instrument , which is then fixed so that the coating cannot be unwound and then sterilized in a sterilizer.
(11) A plurality of sheets of a size that can be folded over the free end to cover an article such as a medical device are overlapped, and the sheets are joined by a joining portion in the vicinity of the center, and the outer ends of the sheets are Prepare a packaging material having a non-constrained free end, and a non-permeable surface that does not transmit microorganisms and liquid near the center of the sheet . placing the article, and covering the article by bending the free end of the inner sheet, and further on it, and sealed with many layers covering the article by the sheet coated by bending the free end of the outer sheet A method for storing an article such as a sterilized medical instrument, which is then stored in a sterilized state in a sterilization apparatus after being taped so that the coating is not unwound.

The present invention relates to the sterilization, storage packaging material, and sterilization and storage method for articles such as medical instruments, and has the following effects.
1. Even if the packaging material of the present invention is spread on a contaminated desk surface or the like and an article such as a medical instrument is placed and covered with each open end surface, the medical instrument or the like is contaminated from the desk surface. Is prevented by the non-transmissive surface. Even if the packaging operation is performed with a contaminated hand, the operation itself is simple, so there is very little chance of contamination of articles such as medical instruments.
2. Even after handling and handling with contaminated hands to move into the sterilizer, the contamination remains on the outer sheet and there is very little internal contamination.
3. Even if the packaged items such as medical instruments are sterilized and handled with contaminated hands when they are taken out from the sterilizer, even the instruments such as medical instruments protected by the inner and outer sheets and the non-permeable surface are contaminated. Will not penetrate.
4). When the packaging material is opened, the contaminated mounting surface or manual contamination does not penetrate into the inner sheet.
5. Since the packaging material is manufactured from a cloth or the like, the packaging material is flexible and can handle a variety of sterilized objects with a pair of packaging materials. Accordingly, the number of types of packaging materials to be prepared is extremely small, and the labor of taking out and preparing a plurality of packaging materials separately and packaging them can be saved.
6). Because the packaging material used can be used repeatedly by washing, disinfection and sterilization, it is not necessary to treat it as medical waste every time it is used, unlike conventional disposable products. It is also possible to reduce costs.
7). It can be stored in a sterilized packaging state.
8). The form which wraps a to-be-packaged article can be selected, For example, it can apply also to the system which folds a free end or the system to wind up a to-be-packaged article.

It is drawing which shows the whole image of the packaging material of this invention. It is a figure which shows the process coat | covered with an inner sheet | seat and an outer sheet | seat. FIG. 2-2 shows a state where packaging is completed. It is a figure which shows another coating process with the same packaging material. FIG. 3-2 shows a state where the packaging is completed. It is a photograph which shows the external appearance of the packaging material of this invention. It is a photograph which shows the coupling | bond part of a packaging material. It is a photograph which shows the state which coat | covered the box-shaped object with the inner sheet | seat with the packaging material, and started coating with the outer sheet | seat. It is a photograph which shows the process of coat | covering a box-shaped object with an outer sheet | seat with a packaging material. It is the photograph which shows the state which complete | finished the covering of the box-shaped object with the packaging material, and was stopped with the tape. It is a figure which shows the relationship between the connection line of a connection part, and the outer edge side of a non-transmissive surface in two types of packaging materials (1) and (2) of this invention. It is a photograph which shows the entrainment state by the outer sheet | seat which may arise when the packaged material (1) wraps the to-be-packaged article smaller than a non-permeable surface by an entrainment system. It is a photograph which shows the entrainment state by the inner sheet at the time of packaging the to-be-packaged article smaller than a non-permeation | transmission surface with a wrapping method with a packaging material (2). It is a photograph which shows the entrainment state by the outer sheet | seat at the time of packaging the to-be-packaged article smaller than a non-permeation | transmission surface with a wrapping method with a packaging material (2).

The present invention solves the above problem by a simple technique. Specifically, the present invention sterilizes using a packaging material as shown in FIGS. 1 and 9 (1) and (2) (hereinafter referred to as medical treatment). Sterilization treatment after packaging), and it is possible to avoid contamination of articles such as medical instruments after sterilization.
The packaging material for sterilization and storage of the present invention is “a plurality of sheets are overlapped, and the sheets are joined by a joining portion in the vicinity of the center portion, and the outer ends of the respective sheets have unconstrained free ends, the center of the sheet. A packaging material consisting of a non-permeable surface that does not allow the passage of microorganisms and liquid near the part, and the article is placed on the non-permeable surface that does not allow the passage of microorganisms and liquid, and the free end of the inner sheet is folded to cover the article. Further, it is a packaging material for sterilization and storage of an article in which the article is covered and encapsulated with multiple layers by folding the free end of the outer sheet and covering it.
Hereinafter, the present invention will be described in detail, and medical instruments will be specifically described in detail as representative examples of articles. The article to be sterilized and stored according to the present invention is not particularly limited, and examples thereof include surgical medical instruments, instruments used for pharmaceuticals, parts and working parts.

[Packaging materials for sterilization and storage of medical instruments]
[Inside and outside sheet]
The sterilization and storage packaging materials (hereinafter also simply referred to as packaging materials) used for articles such as the medical instruments of the present invention will be described below. The packaging material of the present invention is composed of a plurality of sheets, and the number of sheets to be used is not particularly limited. However, for convenience of explanation, an inner sheet (a sheet directly coated on medical instruments) and an outer sheet (coated with an inner sheet) A specific description will be given by taking as an example a packaging material made up of two sheets, ie, sheets that further cover it. The same applies when there are a plurality of sheets.
An example of the packaging material of the present invention is shown in FIG. 1, and includes an outer sheet 1, an inner sheet 2, a non-permeable surface 3, and an inner / outer sheet coupling portion 4. Although the shape of the outer sheet | seat 1 and the inner sheet | seat 2 is not limited, Usually, it is preferable that it is square shape and it is couple | bonded by the coupling | bond part 4 near the center part. The end portions of the sheets 1 and 2 are released to become free ends, which are bent to the central portion to cover and enclose medical instruments (not shown). The medical instruments are placed on the non-permeable surface 3 that does not allow the passage of microorganisms and liquid, and are covered twice by the inner sheet 2 and then the outer sheet 1. When packaging an article, a folding method or a winding method is applied on the basis of bending a free end.

[Non-transparent surface and joint]
The non-permeable surface 3 that does not transmit microorganisms and liquid prevents the contaminants that permeate through the outer sheet 1 and the inner sheet 2 and permeate with liquids such as microorganisms and water from entering from the outside and contaminating medical instruments. It is provided for. The non-transmissive surface 3 may be provided by waterproofing or water-repellent finishing the central portion of the inner sheet 2 or by attaching another sheet having waterproofness or water repellency. Further, the non-transparent surface 3 can be formed as a material for the inner sheet or the outer sheet by using waterproof or water-repellent sheets, sheets having a property of not transmitting microorganisms and liquid as a material for the inner sheet or the outer sheet. it can. Since the non-permeable surface prevents contamination from the outside, it may be provided on any surface of the inner and outer sheets. For example, even if a non-transparent surface is provided on the outer surface of the outer sheet, the function of preventing contamination can be exhibited. The joint portion of the inner and outer sheets has a bonding strength suitable for packaging medical instruments, and is formed so that the joint is not broken and the inner and outer sheets are not separated by a weak force. For example, various joining means such as sewing with a sewing machine, bonding with an adhesive, snap, hook-and-loop fastener, etc. are adopted. For example, according to a joining method such as sewing, there is a possibility that contamination may permeate from the perforation of the joint. Therefore, it is preferable to provide a non-transparent surface so as to cover these coupling portions.
The connecting portion 4 may be any as long as it can be connected so that the inner sheet 2 and the outer sheet 1 are not easily separated. For example, if there is no problem in strength, there is no problem even if the connection is made at one point. Is preferably formed as a bond line by sewing or the like in a square shape at the center of the non-transmissive surface 3. The quadrilateral connecting line may be parallel to the end sides of the outer sheet and the inner sheet (see FIGS. 1 and 9 (1)), or may be parallel to the outer end side of the non-transmissive surface 3 (see FIG. 9 (2)). )reference). For example, the shape of the connecting line 4 of the connecting portion may be a square, and the angle θ between the connecting line 4 and the end side of the inner sheet 2 or the outer sheet 1 may be 90 degrees or less (for example, 45 degrees). (See FIG. 9 (2)). By doing so, it may be easy to wrap the free ends of the outer sheet 1 and the inner sheet 2 inward and wrap them in a winding form. Further, the length of the connecting line of the connecting portion 4 is appropriately determined according to the size of the article to be packaged and the size of the inner and outer sheets.

[Packaging of articles such as medical instruments]
The medical instruments are placed on the non-permeable surface of the inner sheet, and the four open ends of the inner sheet are sequentially bent so that there is no portion exposed to the outside. Next, it is covered with an outer sheet, enclosed in the sheet, fixed with tapes or the like so that the cover is not removed, and then transferred to a sterilization apparatus and sterilized together with the packaging material.
By making the free end of the packaging material of the present invention large, for example, by making the joint portion as small as possible, packaging corresponding to a wide range of medical instruments is possible. Therefore, it is not necessary to prepare many packaging materials of different sizes. In packaging an article, for example, a folding method or a winding method is applied. In the folding method, for example, packaging is performed as shown in FIG. 2 or FIG. In the wrapping method, for example, the article is placed in the center (parallel to the non-transparent surface), the rear end of the inner fabric is entrapped under the article (with a pulling portion), and the other three outer ends are clean. Wrap it up so that it can be easily unfolded by operation, then wrap the rear end of the outer fabric with the inner fabric, wrap it under the article (extract the puller part), fix it, fold back left and right, and pull the front end Wrap by putting out the hand part and weaving.

In order to wrap medical instruments with the packaging material of the present invention, the packaging material is spread on a flat surface such as a table so that the non-permeable surface is up, and the medical instruments are placed on the non-permeable surface in order. This is done by covering with the free end of the packaging material. At this time, even if the table surface is contaminated by something, the contamination source is protected by the inner and outer sheets and the non-permeable surface and the contamination penetrates to the medical instruments. There is nothing. Further, even if the contaminants penetrate into the sheet base fabric together with the liquid or the like and penetrate into the interior, they are blocked by the non-permeable surface and are not contaminated by medical instruments. In addition, even if the package may come into contact with human hands during transport to a sterilizer, etc., after being covered, the surface of the outer sheet that covers medical devices is not removed. It will not be polluted to the inside because it is limited to. Similarly, in the treatment after sterilization, the non-permeable surface and the outer sheet prevent contamination of internal medical instruments.
Any medical instrument that is packaged with the packaging material of the present invention and sterilized or subsequently stored can be packaged, packaged together with the instrument stored in the packaging container, sterilized, and stored. It is also possible to enclose and enclose a large number or many types of devices while being covered with the present packaging material. The form of packaging can be appropriately selected depending on the type and number of medical instruments.

[Fabrics that make up the inner and outer sheets]
The base fabrics constituting the inner sheet and the outer sheet are generally made of the same material, but base fabrics having different characteristics can be used.
As the base fabric, a base fabric using a material that can withstand washing and sterilization at high temperatures such as polyester, cotton, polyamide, polyacrylonitrile, polypropylene, polyurethane, and fluorine resin is often used. It is desirable to use a base fabric that does not have pinholes, but even water-absorbent fabrics such as cotton and baseholes with pinholes can be made with water repellency, waterproofing, resin coating, or lamination. As an optimal fabric product. For example, as an example of a method for processing a fabric product, a knit system, a fabric system, a laminate system, a coating, or the like is employed. By configuring the packaging material of the present invention with a base fabric made of a material that can be washed after use and repeatedly used, medical waste can be reduced. Since blood, microorganisms, etc. are attached to the base fabric after use, it can be reused after being disinfected (for example, a 10-minute hot water disinfection process using hot water at 80 ° C.) so that it does not become a source of infection. Made. The base fabric is preferably subjected to a treatment having a barrier property against bacteria and viruses on its surface, for example, sewing so that a sewing hole is not exposed at a sewing location.

As a specific example of the base fabric suitable for use in the present invention, for example, a sheet having a bacterial barrier property having water repellent performance, waterproof performance and moisture permeability is used. As a material having such characteristics, for example, it is made of a fabric that has extremely high moisture permeability and water vapor permeability during high-pressure steam sterilization, and that greatly reduces the occurrence of lint, and maintains external barrier properties. A material that ensures air permeability (for example, a polyester microfiber material or a multilayer structure material that satisfies barrier performance classification levels 2 to 3 of US standard ANSI / AAMIPB70), and a film is formed on the surface and inner surface of the fabric. At the same time the fiber gap multilayer structure does not allow even what liquid penetration or microorganisms because they increase the water resistance and durability by filling a coating material to nearly the limit to the material (e.g., US standard ANSI / AAMIPB70 Material that satisfies barrier performance classification level 4).
In addition, a water-absorbing material, a waterproof material, a water-repellent material, a moisture-permeable material, and a breathable material can be used alone, or any one of these materials can be used in combination.

  For example, the surface is composed of water-absorbing material, and the center part is provided with a sheet composed of water-resistant material on the surface of the base fabric to prevent liquid and microorganisms from adhering to the sterilized material. It is possible to reliably prevent contamination of an object to be sterilized and secondary infection to a patient. Moreover, this sheet | seat is provided in the back surface side of a base fabric, and the contamination by the penetration | invasion of a liquid or microorganisms can also be prevented for the to-be-sterilized article by making a waterproof surface face outward. The reinforcing property of the base fabric can be imparted by the bacterial barrier sheet.

  The bacterial barrier sheet and the reinforcing sheet are selected from materials having characteristics such as water absorption, waterproof, water repellency, and air permeability, and used in appropriate combination. For example, water absorption / water resistance, water repellency / water resistance, waterproof / durability are used. In combination with materials having different properties, it is made into a single layer structure, a double structure, or a laminated structure more than a triple structure according to the application and required properties, and various layers to be sterilized by combining each layer with different characteristics. It can also be applicable to objects and sterilization methods. For example, a sheet having a three-layer structure in which resin films are laminated on both surfaces of a woven fabric, the resin film is made of polyester tricot having sterilization resistance and alkali resistance, and the woven fabric is made of an inorganic film filled with inorganic silicon And a sheet made of polyester filaments having excellent water repellency and waterproof performance, and the occurrence of lint is greatly suppressed.

[Explanation based on photograph of packaging material of the present invention]
The folding packaging according to the present invention will be described with reference to FIGS. FIG. 4 is a photograph of the packaging material of the present invention taken from directly above, in which two sheets, an inner sheet and an outer sheet, are integrally formed by an invisible joint at the center. In the photograph, the left end portion of the inner sheet is bent to indicate a free end. The white portion at the center of the sheet is a non-permeable surface that does not allow the passage of microorganisms and liquid. For example, a water-repellent fabric is sewn on the inner surface of the inner sheet. FIG. 5 shows the coupling portion between the inner sheet and the outer sheet, and it can be seen that the area of the coupling portion between the inner sheet and the outer sheet is very small. For example, the inner sheet and the outer sheet can be joined together by sewing the central part with several threads.

  FIG. 6 shows a state in which medical instruments are housed in a box-like container and covered with the four ends of the inner sheet, and the upper sheet is covered with the outer sheet. FIG. 7 shows a state where the outer sheet is to be further covered. As is apparent from these photographs, the packaging material of the present invention is used in the same manner as packaging an article with a so-called furoshiki, and is usually packaged manually. Therefore, the packaging material of the present invention can be applied to various types of medical instruments, and the shape and size of the medical instruments can be selected. For example, it is a flexible packaging material that can wrap a box in which a large number of devices are stored in a container, and can wrap a number of medical devices having different shapes and sizes. FIG. 8 shows a state in which the medical device is wrapped with this packaging material and then locked with an adhesive tape to fix the packaging material. Usually, the package in this form is manually transported to a sterilizer and sterilized. After sterilization, it is taken out and stored as it is, and taken out when necessary and transported to an operating room or the like. To remove medical instruments, the packaging must be opened manually, but even if the table on which the package is placed or the hands are contaminated, sterilized medical instruments do not come into direct contact with the source of contamination. Keep it clean.

The packaging material of the present invention will be described with reference to FIGS.
The whole image of the packaging material of the present invention is shown in FIG. The outer sheet 1 and the inner sheet 2 are integrated by the coupling portion 4, and the peripheral edge of each sheet is not restricted and is a free edge. A central portion where the outer sheet 1 and the inner sheet 2 are overlapped is sewn with a thread in a square shape to form a coupling portion 4. The non-transmissive surface 3 has a quadrangular shape, and its outer end side is attached so that an angle between the inner sheet 2 and the outer sheet 1 is 45 degrees. The stitches of the connecting portion 4 that connects the inner sheet 2 and the outer sheet 1 are parallel to the end sides of the inner sheet 2 or the outer sheet 1. Since a fine through hole is formed in the seam and contamination may permeate from the outer surface of the outer sheet 1 to the inner surface of the inner sheet 2, the non-transparent surface 3 is provided to cover the seam. The non-permeable surface 3 is made of a material that does not allow microorganisms or liquid to pass therethrough. The non-transmissive surface 3 may be sewn by a sewing machine. Usually, the medical instrument which is a packaging material has a shape smaller than the non-permeable surface 3 and is wrapped by the non-permeable surface 3, and the seam is formed only on the inner sheet 2 and directly from the outside. This is because the chance of being contaminated from the seam for providing the non-transparent surface 3 due to the absence of contact is low.

FIG. 2 shows a procedure for covering a material to be packaged (not shown) by a folding method. The medical instrument which is the packaging material is placed on the non-permeable surface 3, and then the right free end of the inner sheet is bent to the left to cover the medical instrument. Similarly, the left free end of the inner sheet is folded, and then the upper free end and the lower free end of the inner sheet are folded so that the medical devices are completely covered by the inner sheet 2. Subsequently, the outer sheet 1 is similarly bent sequentially and covered so as to wrap the inner sheet 2 so that the medical device is completely double-wrapped.
Various methods are used for packaging with the packaging material of the present invention depending on the shape and size of the packaging material. For example, as shown in FIG. 3, the free ends 11 and 21 of the inner sheet 1 and the outer sheet 2 can be folded obliquely upward to cover and package.
In the packaging material shown in FIG. 1 of the present embodiment, 90 × 90 cm inner and outer sheets 1 and 2 are used, a 35 × 30 cm non-permeable surface 3 is provided in the center, and a connecting portion 4 is connected by a 15 × 15 cm suture line. did.

In this embodiment, as shown in FIG. 9 (2), the stitching line of the connecting portion 4 in Embodiment 1 is formed in parallel with the outer end side of the non-transmissive surface 3. That is, the suture line is at an angle of 45 degrees with the end sides 10 and 20 of the outer sheet 1 and the inner sheet 2. In Example 1, the folding method is used for packaging. However, when packaging is performed by folding a sheet and winding a packaged item, the inner sheet is used when the bottom surface of the packaged article is smaller than the non-permeable surface 3. The wrapping of the article to be packaged by 2 can be performed without any problem, but when the outer sheet 1 is entrapped, the connecting portion 4 may be in the way and the entanglement may be difficult to complete (see FIGS. 10A and 10B) ). In this example, this point was improved.
In this embodiment, the stitching line of the connecting portion 4 is made parallel to the outer edge side of the non-transparent surface 3 as shown in FIG. 9B, that is, the outer sheet and the inner sheet edges 10, 20 and the stitching line. By setting the eggplant angle θ to 45 degrees, the winding by the inner sheet 2 is made good as shown in FIG. 11, and the winding by the outer sheet 1 is facilitated as shown in FIG.
In the packaging material shown in FIG. 9 (2) of the present embodiment, when a 90 × 90 cm inner / outer sheet is used, a non-transparent surface 3 of 35 × 30 cm is provided in the center thereof, and a joint portion 4 is formed by a 10 × 10 cm suture line. Formed. When a 120 × 120 cm or 140 × 140 cm inner / outer sheet is used, the stitching line of the connecting portion 4 is 15 × 15 cm.

  The present invention relates to sterilization and storage of articles such as medical instruments that are simple and useful in treatments such as sterilization, sterilization, disinfection, and sterilization in which articles such as medical instruments are enclosed in a packaging material. It relates to packaging materials. The present invention makes it easy to transport and store sterilized medical instruments, and can provide packaging materials for articles that do not contaminate instruments packaged by manpower or the environment. Economical operation is possible because no handling is required. In addition, by making this packaging material resistant to many washings and sterilization treatments, it is not necessary to make medical waste with high treatment costs each time it is used, unlike conventional disposable products. Can be reduced. Therefore, it is possible to simplify and improve the efficiency of the system from the sterilization process to the waste process of the medical instruments, which greatly contributes economically to medical care.

1: Outer sheet 10: Outer sheet edge 11, 12, 13, 14: Outer sheet free edge 2: Inner sheet 20: Inner sheet edge 21: Inner sheet free edge 3: Non-transmissive surface 31: Non-transmissive surface Outer edge side 4: Joint part (joint line) of inner sheet and outer sheet

Claims (11)

A plurality of sheets of a size that can be folded over the free end to cover an article such as a medical device are overlapped, and the sheets are joined by a joint near the center, and the outer end of each sheet is restrained. Wrapping material made of a non-permeable surface that does not allow passage of microorganisms and liquid near the center of the sheet, and an article such as a medical device is placed on the non-permeable surface that does not transmit microorganisms and liquid. covering the article by bending the free end of the sheet, further thereon, by coating by bending a free end of the outer sheet, medical used to encapsulate by the article and over again covered by the sheet Packaging materials for sterilization and storage of items such as instruments . An inner sheet that directly covers an article such as a medical instrument that forms a plurality of sheets of a size that can be folded to cover the article such as a medical instrument, and an outer sheet that further covers the inner sheet The two sheets are joined by a joining portion in the vicinity of the center of the two sheets, and the outer ends of both sheets form a free unconstrained end, and the vicinity of the center of the inner sheet is from a non-permeable surface that does not transmit microorganisms and liquid. A packaging material for sterilization and storage of articles such as the medical instrument according to claim 1. An inner sheet that directly covers an article such as a medical instrument that constitutes a plurality of sheets of a size that can be coated with an article such as a medical instrument by bending a binding line that forms a coupling part, a non-transparent surface, and a free end ; The medical device according to claim 1 or 2, wherein the outer sheet further covering the upper sheet covered with the inner sheet is formed of a quadrangle, and the connecting line forming the connecting portion is parallel to the outer sheet and the end of the inner sheet. Packaging materials for sterilization and storage of goods. Inner sheet and inner sheet directly covering articles such as medical instruments constituting a plurality of sheets that can be coated with articles such as medical instruments by bending the connecting line, non-permeable surface and free end forming the coupling portion 4. The medical device according to claim 3 , wherein the outer sheet that further covers the sheet is made of a quadrangle, and the angle formed by the connecting line forming the connecting portion, the outer sheet, and the edge of the inner sheet is less than 90 degrees. Packaging materials for sterilization and storage of goods. The wrapping material for sterilization and storage of articles such as medical instruments according to claim 4, wherein the angle formed by the connecting line forming the connecting portion and the edges of the outer sheet and the inner sheet is 45 degrees. 6. A sterilization and storage of an article such as a medical instrument according to any one of claims 1 to 5, wherein a non-permeable surface that does not transmit microorganisms and liquid is provided in the vicinity of the central portion of any sheet so as to cover the joint portion. Packaging materials. The packaging material for sterilization and storage of articles such as medical instruments according to any one of claims 1 to 6, wherein a non-permeable surface that does not transmit microorganisms and liquid is provided near the center of the innermost sheet. The medical device according to any one of claims 1 to 7, wherein the sheet and the non-permeable surface are made of a material that can withstand washing, disinfection, and sterilization, and can be repeatedly used by washing, disinfection, and sterilization. Packaging materials for sterilization and storage of goods. The packaging material for sterilization and storage of articles such as medical instruments according to any one of claims 1 to 8, wherein the non-permeable surface is waterproof. A plurality of sheets of a size that can be folded over the free end to cover an article such as a medical device are overlapped, and the sheets are joined by a joint near the center, and the outer end of each sheet is restrained. Prepare a packaging material consisting of a non-permeable surface that does not allow the passage of microorganisms and liquid near the center of the sheet, and place articles such as medical devices on the non-permeable surface that does not transmit the microorganisms and liquid of the packaging material. and location, and covering the article by bending the free end of the inner sheet, and further on it, and sealed with many layers covering the article by the sheet coated by bending the free end of the outer sheet and then coating A method for sterilizing an article such as a medical instrument, wherein the article is sterilized in a sterilizer after being fixed so as not to unravel. A plurality of sheets of a size that can be folded over the free end to cover an article such as a medical device are overlapped, and the sheets are joined by a joint near the center, and the outer end of each sheet is restrained. Prepare a packaging material consisting of a non-permeable surface that does not allow the passage of microorganisms and liquid near the center of the sheet, and place articles such as medical devices on the non-permeable surface that does not transmit the microorganisms and liquid of the packaging material. and location, and covering the article by bending the free end of the inner sheet, and further on it, and sealed with many layers covering the article by the sheet coated by bending the free end of the outer sheet and then coating A method for storing articles such as a sterilized medical instrument, wherein the article is stored in a sterilized state in a sterilization apparatus after being stopped with a tape so as not to unravel.