JP2004057803A - Medical container and sealing/unsealing method for medical container - Google Patents

Medical container and sealing/unsealing method for medical container Download PDF

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Publication number
JP2004057803A
JP2004057803A JP2003038202A JP2003038202A JP2004057803A JP 2004057803 A JP2004057803 A JP 2004057803A JP 2003038202 A JP2003038202 A JP 2003038202A JP 2003038202 A JP2003038202 A JP 2003038202A JP 2004057803 A JP2004057803 A JP 2004057803A
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JP
Japan
Prior art keywords
synthetic resin
resin film
medical container
opening
mouth portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2003038202A
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Japanese (ja)
Inventor
Tomoyasu Yamashita
山下 知康
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Naigai Kasei Co Ltd
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Naigai Kasei Co Ltd
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Filing date
Publication date
Application filed by Naigai Kasei Co Ltd filed Critical Naigai Kasei Co Ltd
Priority to JP2003038202A priority Critical patent/JP2004057803A/en
Publication of JP2004057803A publication Critical patent/JP2004057803A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B29C65/081Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations having a component of vibration not perpendicular to the welding surface
    • B29C65/082Angular, i.e. torsional ultrasonic welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16Laser beams
    • B29C65/1629Laser beams characterised by the way of heating the interface
    • B29C65/1635Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16Laser beams
    • B29C65/1629Laser beams characterised by the way of heating the interface
    • B29C65/1654Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16Laser beams
    • B29C65/1629Laser beams characterised by the way of heating the interface
    • B29C65/1664Laser beams characterised by the way of heating the interface making use of several radiators
    • B29C65/1667Laser beams characterised by the way of heating the interface making use of several radiators at the same time, i.e. simultaneous laser welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7443Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc by means of ultrasonic vibrations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/745Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
    • B29C65/7451Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool the severing tool and the welding tool being movable with respect to one-another
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/745Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
    • B29C65/7461Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool for making welds and cuts of other than simple rectilinear form
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/76Making non-permanent or releasable joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7888Means for handling of moving sheets or webs
    • B29C65/7891Means for handling of moving sheets or webs of discontinuously moving sheets or webs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112Single lapped joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/20Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2422Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical
    • B29C66/24221Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical being circular
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/302Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
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    • B29C66/80General aspects of machine operations or constructions and parts thereof
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    • B29C66/81427General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
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    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832Reciprocating joining or pressing tools
    • B29C66/8322Joining or pressing tools reciprocating along one axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16Laser beams
    • B29C65/1629Laser beams characterised by the way of heating the interface
    • B29C65/1654Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
    • B29C65/1661Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined scanning repeatedly, e.g. quasi-simultaneous laser welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30Electrical means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/712Containers; Packaging elements or accessories, Packages
    • B29L2031/7158Bottles

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method to seal a medical container to prevent bacteria and foreign matters from mixing in and to unseal the sealed container without leaving foreign matters such as cut chips of the sealed container, and the medical container used for the method. <P>SOLUTION: The medical container 1 adopts a sealing method to weld a synthetic resin film 5 to the surface of a mouth part 3 to seal the opening part 4 of the mouth part 3. The synthetic resin film also can be welded by ultrasonic vibration, high-frequency dielectric heating, and a laser, The unsealing method adopts a way to cause melt-shrink of the synthetic resin film 5 by hot air, radiation heat, laser, high-frequency dielectric heating, electromagnetic induction, cutting off, peeling off. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、医療用容器並びに医療用容器の口元部の開口部をシールする密閉方法及びその開封方法に関する。
【0002】
【従来の技術】
輸液などの内容物を注入して、点滴など使用する医療用容器(以下、容器ということがある。)は、口元部を有し、該口元部の開口部から内容物が容器内に注入される。例えば、特許文献1に開示された医療用容器がある。
【0003】
【特許文献1】
特開2000−第52413号公報(第2頁、第1〜3図)。
【0004】
【発明が解決しようとする課題】
しかしながら、容器の製造と内容物の注入は、同時に行われるとは限らない。容器の輸送過程で雑菌や異物が容器内に混入している可能性もあるため、内容物を注入する前に、容器内を洗浄する必要があった。
【0005】
しかし、容器の洗浄工程がなければ、その分作業効率が向上する。そのため、輸送時に容器内を無菌状態に維持し、異物の混入を防止するため、あるいは輸送時における容器の変形を防止するため、容器内に無菌空気を充填した後、容器の口元部の開口部が密閉体により密閉された状態で提供されることが望まれてきた。
【0006】
かかる密閉方法に伴い、安全かつ迅速に容器を開封する方法も望まれる。すなわち、刃物などによる切断や突起物などに破断によって開封すると、密閉体の切れ端などが異物として残留するおそれがある。また、開封に際し時間を要すると、作業効率も低下する。
【0007】
本発明の目的は、医療用容器において、雑菌や異物の混入を防止すべく容器を密閉する方法及び密閉体の切れ端などが異物として残留することなく開封する方法を提供することにある。
【0008】
【課題を解決するための手段】
上記目的を達成するために鋭意検討した結果、本発明は、口元部を有する医療用容器において、その口元部の表面に合成樹脂フィルムを熱溶着により溶着し、口元部の開口部をシールする医療用容器の密閉方法を採用した。
【0009】
医療用容器は、一般に合成樹脂製であるので、熱溶着(熱シール、ヒートシールとも呼ばれる。)によれば、口元部と密閉体としての合成樹脂フィルム(以下、フィルムという。)とを隙間なく溶着することができる。その結果、容器内に雑菌や異物の混入を防ぐことができる。また、輸送時の容器の変形も防止できる。
【0010】
また、口元部を有する医療用容器において、その口元部の表面に合成樹脂フィルムを超音波縦振動又は超音波ねじり振動若しくはこれらの混合の振動により溶着し、口元部の開口部をシールする医療用容器の密閉方法も採用できる。
【0011】
口元部の表面にフィルムを配し、超音波振動により振動させると、口元部とフィルムとの間に摩擦を生じる。該摩擦の発熱により、口元部とフィルムが溶解することに互いに溶着される。
【0012】
口元部を有する医療用容器において、その口元部の表面に合成樹脂フィルムを高周波誘電溶着により溶着し、口元部の開口部をシールする医療用容器の密閉方法も採用できる。
【0013】
合成樹脂の誘電損を利用し、高周波電界を印加することにより、合成樹脂が発熱する。この現象を利用し、口元部の表面にフィルムを配し、両者を2つの電極で挟み、電極間に高周波電流を流すことにより、口元部とフィルムが発熱する。該発熱により、両者が溶解するので、互いに溶着される。
【0014】
口元部を有する医療用容器において、その口元部の表面に合成樹脂フィルムをレーザー溶着により溶着し、口元部の開口部をシールする医療用容器の密閉方法も採用できる。
【0015】
レーザー光が照射されると、レーザー光のエネルギーにより照射された部分が加熱される。口元部の表面にフィルムを配し、フィルムにレーザー光を照射すると、フィルムが加熱される。同時に、フィルムは透明又は半透明であるので、レーザー光の一部が透過し、口元部も加熱される。したがって、口元部とフィルムが溶解するので、互いに溶着される。なお、光学系により、レーザー光を口元部に沿って走査したり、レーザー照射の幅を変化させたりできる。また、プリズム、ハーフミラー、ビームスプリッターなどにより、レーザー光を複数に分岐すれば、同時に複数の容器に対してフィルムの溶着が可能である。
【0016】
前記合成樹脂フィルムは二層以上のイージーピール用多層フィルムである医療用容器の密閉方法も採用できる。
【0017】
合成樹脂フィルムが二層以上のイージーピール用多層フィルムであれば、切れ端等が残留することなくシールを開封することができる。なお、イージーピール用多層フィルムは、シール層とピール層を含む多層フィルムであって、容易に剥離され開封可能な(イージーピール性、易開封性)フィルムである。シール層が破壊されて剥離する凝集剥離タイプ、シール層が他の層から剥離する層間剥離タイプ、シール層が溶着面から剥離する界面剥離のいずれのタイプのフィルムも使用できる。
【0018】
また、以上述べたいずれかの方法により、口元部の開口部が合成樹脂フィルムによりシールされた医療用容器も採用できる。
【0019】
口元部の開口部が合成樹脂フィルムによりシールされた医療用容器であれば、剥離や溶解により容易にシールを開封でき、しかもフィルム切れ端などが容器に残留するおそれがない。
【0020】
さらに、前記口元部がフランジを有し、前記フランジの内周部表面が前記フランジの外周部表面に対し段部をなして容器下部側に配置され、前記フランジの外周部表面に合成樹脂フィルムが溶着され、前記口元部の開口部がシールされた医療用容器も採用できる。
【0021】
後述する溶解収縮によるシール開封方法を採用する場合、フィルムは口元部内周辺縁部に収縮した状態で残留する。口元部がフランジを有し、前記フランジの内周部表面が前記フランジの外周部表面に対し段部をなして容器下部側に配置され、前記フランジの外周部表面に合成樹脂フィルムが溶着されているので、溶解収縮されたフィルムが前記段部に残留し、フランジの外周部表面より容器外側に突出することがない。その結果、内容物充填後に行われる合成樹脂フィルムやキャップ等の溶着が容易となる。
【0022】
また、前記フランジの外周部表面と前記フランジの内周部表面との段差が0.3〜1.5mmである医療用容器とすることもできる。
【0023】
0.3mm未満であると、段部が小さく収縮したフィルムが収まらず、内容物充填後に行われる合成樹脂フィルムやキャップ等の溶着の妨げとなる。また、1.5mmを越えると、段部のあるフランジの部分が薄くなりフランジの強度が低下することがある。
【0024】
また、前記口元部の内周部表面が前記口元部の外周部表面に対し段部をなして容器下部側に配置され、前記前記口元部の外周部表面に合成樹脂フィルムが溶着され、前記口元部の開口部がシールされた医療用容器とすることもできる。
【0025】
口元部の肉厚が比較的厚い場合、フランジを設けるまでもなく、口元部の外周部と内周部を設け、前記内周部表面が前記口元部の外周部表面に対し段部をなして容器下部側に配置することができ、同様に開封時に溶解収縮されたフィルムが前記段部に残留し、その後の合成樹脂フィルムやキャップ等の溶着が容易となる。
【0026】
以上述べた方法により密閉された容器内に内容物を注入する際に、フィルムを開封する必要がある。このとき、シールされたフィルムを除去する必要があるが、切断や破断によると、フィルムの切れ端が異物として残留するおそれがある。かかる場合、以下に述べる開封方法を採用できる。
【0027】
すなわち、口元部を有し、前記口元部の開口部が合成樹脂フィルムによりシールされた医療用容器において、前記合成樹脂フィルムをその中央部から溶解収縮させて開封する医療用容器の開封方法を採用できる。
【0028】
合成樹脂フィルムをその中央部から溶解収縮させて開封することにより、均等にかつ素早く開封することができる。
【0029】
また、合成樹脂フィルムの中央部と発熱先端部との距離が最短で、前記合成樹脂フィルムの周辺部と発熱周辺部との距離が相対的に長く、前記合成樹脂フィルムの中央部に到達する輻射熱量が最大となる発熱先端部及び発熱周辺部を備えた発熱体を用いて、当該発熱体を接近させ、前記発熱体からの輻射熱により、前記合成樹脂フィルムを中央部より溶解収縮させて開封する医療用容器の開封方法とすることができる。
【0030】
発熱体からの輻射熱を利用して、フィルムを溶解収縮させ、容器を開封することができる。発熱体との間隔や輻射熱の照射時間を調節すれば、口元部が溶解することはない。特に、合成樹脂フィルムの中央部と発熱先端部との距離が最短で、前記合成樹脂フィルムの周辺部と発熱周辺部との距離が相対的に長く、前記合成樹脂フィルムの中央部に到達する輻射熱量が最大となる発熱先端部及び発熱周辺部を備えた発熱体により、当該発熱体を接近させ、前記発熱体からの輻射熱により、前記合成樹脂フィルムを中央部より溶解収縮させて開封することにより、合成樹脂フィルムをその中央部から溶解収縮させて開封することにより、均等にかつ素早く開封することができる。また、一様に加熱されることにより合成樹脂フィルムが周囲に溶解収縮せず、溶解した合成樹脂フィルムが容器内部に落下残留することも防止できる。
【0031】
また、合成樹脂フィルムの中央部に到達する熱風が最大となる熱風手段より、前記合成樹脂フィルムを中央部より溶解収縮させて開封する医療用容器の開封方法とすることができる。
【0032】
フィルムに熱風を当てると、フィルムの一部が溶解し開口すると共に、フィルム面方向に収縮し、容器が開封される。フィルムは収縮するので、一部が切れ端などとなり容器内に残留することはない。また、口元部はフィルムに比べ十分厚いので、ノズルなどで熱風を調整すれば、口元部が溶解することはない。特に、合成樹脂フィルムの中央部に到達する熱風が最大となる熱風手段よれば、合成樹脂フィルムを中央部より溶解収縮させて開封でき、均等にかつ素早く開封することができる。
【0033】
また、前記口元部がフランジを有し、前記フランジの内周部表面が前記フランジの外周部表面に対し段部をなして容器下部側に配置され、前記フランジの外周部表面に合成樹脂フィルムが溶着され、前記口元部の開口部がシールされた医療用容器において、前記合成樹脂フィルムをその中央部から溶解収縮させて開封する医療用容器の開封方法とすることもできる。
【0034】
開封前において、口元部がフランジを有し、前記フランジの内周部表面が前記フランジの外周部表面に対し段部をなして容器下部側に配置され、前記フランジの外周部表面に合成樹脂フィルムが溶着されているので、合成樹脂フィルムをその中央部から溶解収縮されたフィルムが前記段部に残留し、フランジの外周部表面より容器外側に突出することがない。その結果、内容物充填後に行われる合成樹脂フィルムやキャップ等の溶着が容易となる。
【0035】
前記口元部の内周部表面が前記口元部の外周部表面に対し段部をなして容器下部側に配置され、前記口元部の外周部表面に合成樹脂フィルムが溶着され、前記口元部の開口部がシールされた医療用容器において、前記合成樹脂フィルムをその中央部から溶解収縮させて開封する医療用容器の開封方法とすることもできる。
【0036】
同様に、口元部の肉厚が比較的厚いと同様に段部を構成できる。かかる場合、合成樹脂フィルムをその中央部から溶解収縮されたフィルムが前記段部に残留し、フランジの外周部表面より容器外側に突出することがなく、内容物充填後に行われる合成樹脂フィルムやキャップ等の溶着が容易となる。
【0037】
口元部を有し、前記口元部の開口部が合成樹脂フィルムによりシールされた医療用容器において、前記合成樹脂フィルムにレーザー光を照射し、前記合成樹脂フィルムを溶解収縮させて開封する医療用容器の開封方法も採用できる。
【0038】
レーザー光を局所的にフィルムに照射すれば、照射された部分だけ溶解収縮するので、切れ端などが残留することなく、容器を開封することができる。
【0039】
口元部を有し、前記口元部の開口部が合成樹脂フィルムによりシールされた医療用容器において、前記合成樹脂フィルムを高周波誘電により、前記合成樹脂フィルムを溶解収縮させ開封する医療用容器の開封方法も採用できる。
【0040】
フィルムの誘電損を利用した高周波誘電により、フィルムのみが加熱され、溶解収縮するので、切れ端などが残留することなく、容器を開封することができる。
【0041】
口元部を有し、前記口元部の開口部が合成樹脂フィルムによりシールされた医療用容器において、前記合成樹脂フィルムを電磁誘導により、前記合成樹脂フィルムを溶解収縮させて開封する医療用容器の開封方法も採用できる。
【0042】
電磁誘導により、フィルムのみが加熱され、溶解収縮するので、切れ端などが残留することなく、容器を開封することができる。
【0043】
口元部を有し、前記口元部の開口部が合成樹脂フィルムによりシールされた医療用容器において、前記合成樹脂フィルムを保持し、前記合成樹脂フィルムの内周部を切欠し、切欠された前記合成樹脂フィルム片を除去して開封する医療用容器の開封方法も採用できる。
【0044】
合成樹脂フィルムを保持して、前記合成樹脂フィルムの内周部を切欠し、切欠された前記合成樹脂フィルム片を除去するので、開封されたフィルムが容器内部等に残留することがない。フィルムの保持は、チューブや管等による吸引により保持することができ、フィルムを切欠した後、同様にフィルムを除去することができる。
【0045】
口元部を有し、前記口元部の開口部が剥離可能な合成樹脂フィルムによりシールされた医療用容器において、前記合成樹脂フィルムを剥離して開封する医療用容器の開封方法も採用できる。
【0046】
特に、剥離可能な合成樹脂フィルムによりシールされている場合、前記合成樹脂フィルムを剥離すれば、切れ端等が残留することなく開封することができる、なお、剥離可能な合成樹脂フィルムとして、イージーピール用多層フィルムが好適に使用でき、凝集剥離、層間剥離、界面剥離のいずれのタイプのフィルムも使用できる。
【0047】
内容物を注入後、すぐに容器を使用することが多いが、一時的に再保管する必要なときがある。かかる場合、上述した熱風、輻射熱、レーザー、高周波誘電、電磁誘導、切欠、剥離のいずれかの方法により、医療用容器の口元部の開口部をシールする合成樹脂フィルムを開封し、前記医療用容器内に内容物を充填し、上述した熱溶着、超音波振動溶着、高周波誘電溶着、レーザー溶着のいずれかの方法により、再び口元部の開口部を合成樹脂フィルム又はキャップの溶着により密封する医療用容器の内容物充填方法が採用できる。
【0048】
かかる方法により、再度、フィルムをシールすることができ、雑菌や異物が混入することなく、内容物の保存が可能となる。
【0049】
【発明の実施の形態】
以下、図面を用いて本発明に係る密閉方法及び開封方法について説明する。図1は、本発明に係る方法の対象である医療用容器を示す概略断面図である。図1において、1は医療用容器、2は容器部、3は口元部、4は開口部である。医療用容器1は、容器部2に略円筒状の口元部3が取り付けられた構造を有する。口元部3を介して、容器部2に内容物が注入される。図1では、容器部2は、ボトル形状を有しているが、バッグ形状や内容物に応じて他の形状とすることができる。
【0050】
容器1が製造された時点では、口元部3は開口した状態である。そのため、内容物が注入されるまで、開口部4を覆った状態に保ち、雑菌や異物の混入を防止する必要がある。また、輸送時において、容器部2の変形を防止する必要もある。
【0051】
本発明においては、口元部3の表面に合成樹脂フィルムを溶着し、開口部4を該合成樹脂フィルムでシールし、医療用容器1を密閉する方法を採用する。溶着方法は、熱、超音波、高周波誘電、レーザーのいずれによる溶着方法でも可能である。以下、それぞれの方法について説明する。なお、合成樹脂フィルムの材質は、口元部3と同質の材料であることが好ましく、ポリプロピレン又はポリエチレンが好適である。
【0052】
図2は、熱溶着によりフィルムを溶着する方法を示す図である。図において、合成樹脂フィルム5が口元部3を覆うように配置されている。溶着面積を増やすために、口元部3はフランジ3aを有し、フランジ3aがアンビル11上に固定されている。発熱体10は、フランジ3aに当接可能に突条10aを有し、突条10aは、フランジ3aに沿った形状を有している。
【0053】
発熱体10の突条10aがフィルム5に当接し、フィルム5が溶解し始める。次に、フランジ3aも溶解し、フィルム5とフランジ3aとが溶着される。溶着終了後、フィルム5を適当に切断すれば、密封が完了する。なお、巻き取り装置12とローラ13とを備えていれば、フィルム5を順次供給できるので、フィルム溶着の効率が向上する。また、発熱体10は、電気ヒーター等により加熱することができる。なお、刃部15を設けて、溶着完了後、刃部15を下方に移動させてフィルム5を切断することも可能である。
【0054】
図3は、超音波振動によりフィルムを溶着する方法を示す図である。図2と同様に、合成樹脂フィルム5が口元部3を覆うように配置され、フランジ3aがアンビル11上に固定されている。超音波振動子20は、フランジ3aに当接可能に突条20aを有し、突条10aは、フランジ3aに沿った形状を有している。超音波振動子20は、縦振動(図中、A方向の上下往復運動の振動)又はねじり振動(図中、B方向の回転往復運動の振動)、もしくはこれらの混合の振動を発生する振動子である。
【0055】
超音波振動子20が振動しながら下方に移動すると、突条20aがフィルム5に当接し、フィルム5が加圧されながら振動される。フィルム5とフランジ3aとの間に摩擦が生じ、摩擦熱が発生する。該摩擦熱によりフィルム5とフランジ3aが溶解することにより、溶着される。
【0056】
なお、突条20aは、1又は複数のリング状突条とすることができる。ねじり振動を含む振動の場合、振動子20が刃部を備えていれば、ねじり振動により、溶着と共にフィルムの切断も可能となる。また、発熱が局所的であるので、比較的薄いフィルムの溶着も可能となる。
【0057】
図4は、高周波誘電によりフィルムを溶着する方法を示す図である。一対の電極30が、フィルム5とフランジ3aとを密着して挟むように配置され(説明のため、図中、間隔をあけて描いている。)、電極30には高周波電源31が接続されている。
【0058】
高周波電流が電極30の間を流れると、フィルム5とフランジ3aの誘電損により、フィルム5とフランジ3aは誘電加熱される。その結果、フィルム5とフランジ3aが溶解することにより、溶着される。この方法も、発熱が局所的であるので、比較的薄いフィルムの溶着も可能となる。なお、フィルム5とフランジ3aは、誘電損の高い材質であれば、効率よく溶着できる。誘電損の高い周波数を選択し、さらに効率を上げることができる。
【0059】
図5は、レーザーによりフィルムを溶着する方法を示す図である。図において、レーザー発振器40から発せられるレーザー光41は、光学系42により方向を変換され、フランジ3a上に配置されたフィルム5を照射する。レーザー光41のエネルギーにより照射されたフィルム5が加熱される。同時に、フィルム5は透明又は半透明であるので、レーザー光41の一部が透過し、フランジ3aも加熱される。その結果、フィルム5とフランジ3aが溶解するので、互いに溶着される。この方法も、発熱が局所的であるので、比較的薄いフィルムの溶着も可能となる。なお、光学系42により、レーザー光41をフランジ3aに沿って走査したり、レーザー照射の幅を変化させたりできる。また、プリズム、ハーフミラー、ビームスプリッターなどにより、レーザー光41を複数に分岐すれば、同時に複数の容器に対してフィルムの溶着が可能であり、レーザー光がフィルム5を透過するので、フィルム5とフランジ3aとの接触部が直接加熱されるので、厚さが1mm以上のフィルムに対しても良好に溶着可能である。なお、図3〜図5に示した溶着方法においても、図2に示した刃部15を設けてフィルム5を切断することもできる。
【0060】
本発明に係る方法で使用される合成樹脂フィルムは、1層であっても多層であっても構わないが、二層以上の剥離可能な多層フィルムであれば、剥離により容易に開封可能であり、フィルムが残留又は破断することがない。特に、イージーピール用多層フィルム(イージーピール性を有する多層フィルム)が好適に使用でき、凝集剥離、層間剥離、界面剥離のいずれのタイプのフィルムも使用できる。なお、イージーピール用多層フィルムは、上述の熱溶着又は超音波溶着により好適に溶着することができる。
【0061】
上述した方法でシールされた医療用容器は、口元部の開口部が合成樹脂フィルムによりシールされているので、剥離や溶解により容易にシールを開封でき、しかもフィルム切れ端などが容器に残留するおそれがない。
【0062】
さらに、図6(a)に示すように、口元部3がフランジ3aを有し、フランジ3aの内周部3bの表面がフランジ3aの外周部3cの表面に対し段部3dをなして容器1の下部側に配置され、フランジ3aの外周部3cの表面に合成樹脂フィルム5が溶着部16において溶着され、口元部1の開口部4がシールされた医療用容器1とすることができる。
【0063】
かかる場合、後述する溶解収縮によるシール開封方法を採用する場合、図6(b)に示すように、溶解収縮されたフィルム5は段部3dに残留し、フランジ3aの外周部3cの表面より容器1外側に突出することがない。その結果、内容物充填後に行われる合成樹脂フィルムやキャップ等の溶着が容易となる。
【0064】
なお、フランジ3aの外周部3cの表面と内周部3bの表面との段差は、0.3〜1.5mmであることが好ましい。0.3mm未満であると、段部3dが小さく収縮したフィルム5が収まらず、内容物充填後に行われる再シールやキャップ溶着の妨げとなる。また、1.5mmを越えると、フランジ3aの厚さが部分的に薄くなりフランジ3aの強度が低下することがある。
【0065】
また、図6(c)に示すように、熱溶着や超音波溶着などにおいて、フランジ3aの表面3eに突起状の溶着しろ17を設け、溶着しろ17とフィルム5とを互いに溶着させる。この場合、図6(d)に示すように、溶着しろ17の突起高さを高くしておき、溶着しろ17の一部が残るように溶着し、残った溶着しろ17とフランジ表面3eにより段部3dを構成することができる。予めフランジ3aに段差を設けなくても、段部3dが構成されるので、同様の効果が得られる。なお、同じく段差dは、0.3〜1.5mmであることが好ましい。
【0066】
口元部3の肉厚が比較的厚い場合、外周部及び内周部を設け、段部3dと同様の段部を設けた口元部とすることができる。同じく、開封時に溶解収縮したフィルムが段部に残留するので、同様の効果が得られる。
【0067】
次に、上述した方法でシールされた容器を開封する方法について説明する。既に述べたように、溶着されたフィルムは薄いので、切断や破断により開封できるが、フィルムの切れ端が異物として残留するおそれがある。したがって、フィルムを溶解収縮させて、開封することが好ましい。特に、合成樹脂フィルムをその中央部から溶解収縮させて開封する方法がより好ましい。以下、その方法について述べる。
【0068】
図7は、熱風によりシールを開封する方法を示す図である。図において、合成樹脂フィルム5の中央部に到達する熱風が最大となるように、熱風発生装置(図示せず)の送出口51から送出される熱風50がフィルム5の略中央部に当てられている。熱風50により、フィルム5の溶解が始まるが、同時にフィルム5が、フィルム5の中央部から口元部3の縁部へ収縮する。その結果、容器1が開封される。なお、熱風発生装置は公知のもので構わず、電気ヒーターなどの発熱体とファンなどの送風装置との組み合わせなどがある。
【0069】
図8は、輻射熱によりシールを開封する方法を示す図である。図において、トンネル形状の発熱体60より輻射熱61が発せられている。容器1の口元部3を、発熱体60内を通過させると、輻射熱61により、フィルム5の溶解が始まるが、同時にフィルム5が、フィルム5の中央部から口元部3の縁部へ収縮する。その結果、容器1が開封される。なお、発熱体は、トンネル形状でなくても、平板や山形など任意の形状で構わない。
【0070】
図9は、輻射熱によりシールを開封する他の方法を示す図である。図において、合成樹脂フィルム5の中央部と発熱先端部62aとの距離が最短で、合成樹脂フィルム5の周辺部と発熱周辺部62bとの距離が相対的に長く、合成樹脂フィルム5の中央部に到達する輻射熱量が最大となる発熱先端部62a及び発熱周辺部62bを備えた発熱体62より輻射熱61が発せられている。先端部62aをフィルム5の略中央部に接近させると、輻射熱61によりフィルム5の中央部から溶解が始まり、同時にフィルム5がフィルム5の中央部から口元部3の縁部へ収縮する。その結果、容器1が開封されるが、フィルム5の中央部から周囲に向かって、フィルム5が均等に溶解収縮するので、効率よく開封可能となる。
【0071】
また、合成樹脂フィルム5の中央部と発熱先端部62aとの距離が最短で、合成樹脂フィルム5の周辺部と発熱周辺部62bとの距離が相対的に長いので、フィルム5に発せられる輻射熱量は中央部が最も多く一様でないので、溶解収縮が周囲に広がらず、溶解したフィルムが容器1内に落下残留することがない。もちろん、口元部3は図6に示した段部3dを有するフランジ構造を有していることが好ましい。また、口元部3の肉厚が厚いときは、フランジを設けず口元部3に段部を設けた構造としてもよい。
【0072】
図10は、レーザーによりシールを開封する方法を示す図である。図において、レーザー発振器70から発せられるレーザー光71は、光学系42により方向を変換され、広げられ、フィルム5の略中央を照射する。レーザー光71のエネルギーにより照射されたフィルム5が加熱される。フィルム5の溶解が始まるが、同時にフィルム5が、フィルム5の中央部から口元部3の縁部へ収縮する。その結果、容器1が開封される。なお、溶着の場合と同様に、レーザー光71を分岐すれば、同時に複数の容器を開封できる。
【0073】
金属体の周りに高周波電流を流すことにより、溶着と同様に高周波誘電により金属体が発熱し、その発熱体を近いづけることでフィルムが溶解収縮され、容器が開封される。他に、誘電損を利用する方法として、マイクロ波を照射する方法が可能である。マイクロ波は周波数が高いので、材質の内部まで浸透しないので、表面だけ加熱される。本発明の場合、比較的薄いフィルムのみ溶解収縮し、容器を開封することができる。
【0074】
図11は、電磁誘導によりシールを開封する方法を示す図である。図において、棒状の発熱体80を取り巻くようにコイル81が巻かれている。高周波電源82により、コイル81に高周波電流を流すと、電磁誘導により発熱体80が加熱される。その結果、発熱体80からの輻射熱により、容器1が開封される。なお、発熱体80は、鉄やステンレスなどの金属や磁性体が使用でき、形状は、棒状の他、他の形状であっても構わない。また、コイル81自体の発熱による断線を抑えるため、コイル81内に冷却水を流動させることが好ましく、例えば、銅パイプなどが導電性・熱伝導性が良く好適に使用できる。
【0075】
図12は、切欠よりシールを開封する方法を示す図である。図において、チューブや管等の吸引部90はフィルム5の略中央部に当接し、フィルム5を吸引し、保持している。そして、刃部91はフィルム5の内周部を沿うようにして、フィルム5を切欠する。フィルム5が切欠されても、吸引部90により保持されていて、吸引部90によりフィルム5を除去することができ、容器1の内部に残留することはない。
【0076】
ところで、容器内に内容物を注入した後、一時的に再保管する必要性があることがある。かかる場合、まず、上述した熱風、輻射熱、レーザー、高周波誘電、電磁誘導、切欠、剥離のいずれかの方法により、合成樹脂フィルムを開封する。次に、容器内に内容物を充填し、上述した熱溶着、超音波振動溶着、高周波誘電溶着、レーザー溶着のいずれかの方法により、再び口元部の開口部を合成樹脂フィルム又はキャップの溶着により密封する医療用容器の内容物充填方法が採用でき、雑菌や異物が混入することなく、内容物の保管が可能となる。
【0077】
【発明の効果】
本発明によれば、医療用容器において、口元部に合成樹脂フィルムが溶着され、シールされるので、雑菌や異物の混入を防止でき、輸送時の変形を防止できる。また、開封時においては、合成樹脂フィルムが溶解収縮されるので、切れ端などが異物として残留することなく開封できる。
【図面の簡単な説明】
【図1】本発明に係る方法の対象である医療用容器を示す概略断面図である。
【図2】熱溶着によりフィルムを溶着する方法を示す図である。
【図3】超音波振動によりフィルムを溶着する方法を示す図である。
【図4】高周波誘電によりフィルムを溶着する方法を示す図である。
【図5】レーザーによりフィルムを溶着する方法を示す図である。
【図6】本発明に係る医療用容器の口元部の要部断面図である。(a)は開封前の断面、(b)は開封後の断面を示す。(c)は溶着しろにより段部を構成する様子を、(d)は溶着しろにより段部が構成された様子を示す。
【図7】熱風によりシールを開封する方法を示す図である。
【図8】輻射熱によりシールを開封する方法を示す図である。
【図9】輻射熱によりシールを開封する他の方法を示す図である。
【図10】レーザーによりシールを開封する方法を示す図である。
【図11】電磁誘導によりシールを開封する方法を示す図である。
【図12】切欠によりシールを開封する方法を示す図である。
【符号の説明】
1     医療用容器
2     容器部
3     口元部
3a    フランジ部
4     開口部
5     合成樹脂フィルム
10     発熱体
11     アンビル
12     巻き取り装置
15     刃部
16     溶着部
20     超音波振動子
30     高周波電源
40、70  レーザー発振器
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a medical container, a sealing method for sealing an opening of a mouth portion of the medical container, and a method for opening the medical container.
[0002]
[Prior art]
BACKGROUND ART A medical container (hereinafter, sometimes referred to as a container) for injecting contents such as an infusion and using infusion or the like has a mouth portion, and the contents are injected into the container from an opening of the mouth portion. You. For example, there is a medical container disclosed in Patent Document 1.
[0003]
[Patent Document 1]
JP-A-2000-52413 (page 2, FIG. 1 to FIG. 3).
[0004]
[Problems to be solved by the invention]
However, the manufacture of the container and the filling of the contents are not always performed simultaneously. Since there is a possibility that germs and foreign substances may be mixed in the container during the transportation of the container, it is necessary to wash the inside of the container before injecting the contents.
[0005]
However, if there is no container washing step, the work efficiency is improved accordingly. Therefore, in order to maintain the inside of the container in a sterile state at the time of transportation and to prevent contamination of foreign objects or to prevent deformation of the container at the time of transportation, after filling the container with sterile air, the opening at the mouth of the container is opened. Has been desired to be provided in a state sealed by a sealing body.
[0006]
Along with such a sealing method, a method for safely and quickly opening a container is also desired. That is, when the blade is cut by a cutting tool or the like and opened by breaking, a piece of the hermetic body may remain as a foreign substance. In addition, if time is required for opening, the working efficiency is also reduced.
[0007]
SUMMARY OF THE INVENTION An object of the present invention is to provide a method of sealing a medical container in order to prevent contamination of bacteria and foreign matter, and a method of opening a sealed body without leaving a piece of a sealed body as a foreign matter.
[0008]
[Means for Solving the Problems]
As a result of intensive studies to achieve the above object, the present invention relates to a medical container having a mouth portion, in which a synthetic resin film is welded to the surface of the mouth portion by heat welding to seal an opening portion of the mouth portion. The container was hermetically sealed.
[0009]
Since medical containers are generally made of synthetic resin, according to heat welding (also referred to as heat sealing or heat sealing), there is no gap between a mouth portion and a synthetic resin film (hereinafter, referred to as a film) as a sealing body. Can be welded. As a result, it is possible to prevent bacteria and foreign matter from entering the container. Also, deformation of the container during transportation can be prevented.
[0010]
Further, in a medical container having a mouth portion, a synthetic resin film is welded to the surface of the mouth portion by ultrasonic longitudinal vibration or ultrasonic torsional vibration, or a mixture of these, to seal the opening of the mouth portion. A container sealing method can also be adopted.
[0011]
When a film is placed on the surface of the mouth and vibrated by ultrasonic vibration, friction occurs between the mouth and the film. Due to the heat generated by the friction, the mouth portion and the film are melted and welded to each other.
[0012]
In a medical container having a mouth portion, a method of sealing a medical container in which a synthetic resin film is welded to the surface of the mouth portion by high-frequency dielectric welding to seal the opening portion of the mouth portion can be adopted.
[0013]
The synthetic resin generates heat by applying a high-frequency electric field using the dielectric loss of the synthetic resin. Utilizing this phenomenon, a film is arranged on the surface of the mouth portion, both are sandwiched between two electrodes, and a high-frequency current flows between the electrodes, whereby the mouth portion and the film generate heat. Because of the heat generation, the two are dissolved, and they are welded to each other.
[0014]
In a medical container having a mouth portion, a method of sealing a medical container in which a synthetic resin film is welded to the surface of the mouth portion by laser welding and the opening of the mouth portion is sealed can be adopted.
[0015]
When the laser light is irradiated, the irradiated part is heated by the energy of the laser light. When the film is placed on the surface of the mouth and the film is irradiated with laser light, the film is heated. At the same time, since the film is transparent or translucent, a part of the laser beam is transmitted and the mouth is also heated. Therefore, the mouth portion and the film dissolve and are welded to each other. The optical system can scan the laser beam along the mouth or change the width of laser irradiation. If the laser beam is split into a plurality of beams by a prism, a half mirror, a beam splitter, or the like, the film can be welded to a plurality of containers at the same time.
[0016]
The synthetic resin film may be a multilayer film for easy peeling of two or more layers, and a method for sealing a medical container may be employed.
[0017]
If the synthetic resin film is a multilayer film for easy peeling having two or more layers, the seal can be opened without leaving any scraps or the like. In addition, the multilayer film for easy peel is a multilayer film including a seal layer and a peel layer, and is a film that can be easily peeled off and opened (easy peeling property, easy opening property). Any type of film can be used: a cohesive peeling type in which the seal layer is broken and peeled off, an interlayer peeling type in which the seal layer is peeled off from another layer, and an interfacial peeling film in which the seal layer is peeled off from the welding surface.
[0018]
Further, a medical container in which the opening at the mouth is sealed with a synthetic resin film by any of the methods described above can also be employed.
[0019]
In the case of a medical container in which the opening of the mouth is sealed with a synthetic resin film, the seal can be easily opened by peeling or dissolving, and further, there is no possibility that a piece of film or the like remains in the container.
[0020]
Further, the mouth portion has a flange, the inner peripheral surface of the flange is disposed on the lower side of the container forming a step with respect to the outer peripheral surface of the flange, a synthetic resin film on the outer peripheral surface of the flange A medical container which is welded and whose opening at the mouth is sealed can also be employed.
[0021]
When the seal opening method by melting and shrinking described later is adopted, the film remains in a shrunk state at the peripheral edge inside the mouth. The mouth portion has a flange, the inner peripheral surface of the flange is arranged on the lower side of the container forming a step with respect to the outer peripheral surface of the flange, and a synthetic resin film is welded to the outer peripheral surface of the flange. As a result, the melted shrinkage film does not remain on the step portion and does not protrude outside the container from the outer peripheral surface of the flange. As a result, welding of the synthetic resin film, the cap, and the like performed after the filling of the contents is facilitated.
[0022]
Further, the medical container may have a step between the outer peripheral surface of the flange and the inner peripheral surface of the flange of 0.3 to 1.5 mm.
[0023]
If the thickness is less than 0.3 mm, the shrinkable film having a small step portion cannot be accommodated, which hinders welding of a synthetic resin film, a cap, or the like performed after filling the contents. On the other hand, when the thickness exceeds 1.5 mm, the portion of the flange having a step portion becomes thin, and the strength of the flange may decrease.
[0024]
Further, the inner peripheral surface of the lip portion is disposed on the lower side of the container in a stepped manner with respect to the outer peripheral surface of the lip portion, and a synthetic resin film is welded to the outer peripheral surface of the lip portion, The opening of the part may be a sealed medical container.
[0025]
In the case where the thickness of the mouth portion is relatively thick, without providing a flange, an outer circumferential portion and an inner circumferential portion of the mouth portion are provided, and the inner circumferential surface forms a step with respect to the outer circumferential surface of the mouth portion. The film can be arranged at the lower part of the container, and similarly, the film that has been melted and shrunk at the time of opening the seal remains on the step portion, and the subsequent welding of the synthetic resin film, the cap, and the like becomes easy.
[0026]
When injecting the contents into a sealed container by the method described above, it is necessary to open the film. At this time, it is necessary to remove the sealed film. However, according to cutting or breaking, a piece of the film may remain as a foreign substance. In such a case, the opening method described below can be adopted.
[0027]
That is, in a medical container having a mouth portion and an opening portion of the mouth portion sealed with a synthetic resin film, a method of opening a medical container is used in which the synthetic resin film is melted and shrunk from the center thereof and opened. it can.
[0028]
By opening the synthetic resin film by dissolving and shrinking it from the central portion, the opening can be opened uniformly and quickly.
[0029]
Further, the distance between the central portion of the synthetic resin film and the heat-generating tip is the shortest, the distance between the peripheral portion of the synthetic resin film and the heat-generating peripheral portion is relatively long, and the radiant heat reaching the central portion of the synthetic resin film. Using a heating element having a heating end portion and a heating peripheral portion in which the amount is maximum, the heating element is brought close to the heating element, and the radiant heat from the heating element causes the synthetic resin film to be melted and shrunk from the central portion and opened. The medical container can be opened.
[0030]
Utilizing radiant heat from the heating element, the film can be dissolved and shrunk, and the container can be opened. If the distance from the heating element and the irradiation time of the radiant heat are adjusted, the mouth portion does not melt. In particular, the distance between the central portion of the synthetic resin film and the heat-generating tip is the shortest, the distance between the peripheral portion of the synthetic resin film and the heat-generating peripheral portion is relatively long, and radiant heat reaching the central portion of the synthetic resin film. By a heating element having a heating end portion and a heating peripheral portion in which the amount is the maximum, the heating element is brought closer, and by radiating heat from the heating element, the synthetic resin film is melted and shrunk from the central portion and opened. By dissolving and shrinking the synthetic resin film from its central portion and opening it, it is possible to open it evenly and quickly. Further, the uniform heating does not cause the synthetic resin film to dissolve and shrink around, thereby preventing the dissolved synthetic resin film from dropping and remaining inside the container.
[0031]
In addition, a method for opening a medical container in which the synthetic resin film is melted and shrunk from the central portion and opened by hot air means that maximizes hot air reaching the central portion of the synthetic resin film can be provided.
[0032]
When hot air is applied to the film, a part of the film is melted and opened, and shrinks in the direction of the film surface, and the container is opened. Since the film shrinks, a part thereof becomes a piece or the like and does not remain in the container. Further, since the mouth portion is sufficiently thicker than the film, if the hot air is adjusted with a nozzle or the like, the mouth portion does not melt. In particular, according to the hot air means in which the hot air reaching the central portion of the synthetic resin film is maximized, the synthetic resin film can be opened by melting and shrinking the synthetic resin film from the central portion, and can be opened uniformly and quickly.
[0033]
Further, the mouth portion has a flange, the inner peripheral surface of the flange is disposed on the lower side of the container forming a step with respect to the outer peripheral surface of the flange, a synthetic resin film on the outer peripheral surface of the flange. In a medical container which is welded and the opening of the mouth portion is sealed, the synthetic resin film may be melted and shrunk from the central portion to open the medical container.
[0034]
Before opening, the mouth portion has a flange, the inner peripheral surface of the flange is arranged on the lower side of the container forming a step with respect to the outer peripheral surface of the flange, and a synthetic resin film is formed on the outer peripheral surface of the flange. Is welded, so that the film obtained by melting and shrinking the synthetic resin film from the central portion does not remain on the step portion and does not protrude outside the container from the outer peripheral surface of the flange. As a result, welding of the synthetic resin film, the cap, and the like performed after the filling of the contents is facilitated.
[0035]
The inner peripheral surface of the lip portion is disposed on the lower side of the container with a step with respect to the outer peripheral surface of the lip portion, and a synthetic resin film is welded to the outer peripheral surface of the lip portion, and the opening of the lip portion is opened. In a medical container in which a part is sealed, the synthetic resin film may be opened by dissolving and shrinking the synthetic resin film from the center thereof.
[0036]
Similarly, the step portion can be configured similarly to the case where the thickness of the mouth portion is relatively thick. In such a case, the film obtained by dissolving and shrinking the synthetic resin film from the center thereof remains on the step portion and does not protrude to the outside of the container from the outer peripheral surface of the flange. Etc. can be easily welded.
[0037]
A medical container having a mouth portion, wherein the mouth portion of the mouth portion is sealed with a synthetic resin film, and the synthetic resin film is irradiated with a laser beam to dissolve and shrink the synthetic resin film, thereby opening the medical container. Can also be used.
[0038]
When the film is locally irradiated with the laser beam, only the irradiated portion is dissolved and shrunk, so that the container can be opened without leaving any scraps or the like.
[0039]
In a medical container having a mouth portion and an opening portion of the mouth portion sealed with a synthetic resin film, a method of opening a medical container in which the synthetic resin film is melted and shrunk by high-frequency dielectric to dissolve and shrink the synthetic resin film. Can also be adopted.
[0040]
Only the film is heated and melted and contracted by the high frequency dielectric utilizing the dielectric loss of the film, so that the container can be opened without leaving any scraps or the like.
[0041]
In a medical container having a mouth portion and an opening of the mouth portion sealed with a synthetic resin film, the synthetic resin film is opened by dissolving and shrinking the synthetic resin film by electromagnetic induction by electromagnetic induction. A method can also be adopted.
[0042]
Since only the film is heated and melted and contracted by the electromagnetic induction, the container can be opened without leaving any scraps or the like.
[0043]
In a medical container having a mouth portion and an opening portion of the mouth portion sealed with a synthetic resin film, the synthetic resin film is held, an inner peripheral portion of the synthetic resin film is cut, and the cut synthetic resin is cut. A method for opening a medical container in which a resin film piece is removed and opened is also employable.
[0044]
Since the synthetic resin film is held, the inner peripheral portion of the synthetic resin film is cut out, and the cut-out piece of the synthetic resin film is removed, so that the opened film does not remain inside the container or the like. The film can be held by suction using a tube, a tube, or the like. After the film is cut, the film can be similarly removed.
[0045]
In a medical container having a mouth portion and an opening of the mouth portion sealed with a peelable synthetic resin film, a method of opening a medical container in which the synthetic resin film is peeled off and opened can also be adopted.
[0046]
In particular, when sealed with a peelable synthetic resin film, if the synthetic resin film is peeled, it can be opened without leaving any scraps or the like. A multilayer film can be preferably used, and any type of film such as cohesive peeling, interlayer peeling, and interfacial peeling can be used.
[0047]
Containers are often used immediately after injecting the contents, but sometimes they need to be temporarily stored again. In such a case, the synthetic resin film that seals the opening of the mouth of the medical container is opened by any one of the above-described hot air, radiant heat, laser, high-frequency dielectric, electromagnetic induction, notch, and peeling, and the medical container is opened. For medical use, the contents are filled into the inside, and the opening at the mouth is sealed again by welding a synthetic resin film or a cap by any of the above-described methods of heat welding, ultrasonic vibration welding, high-frequency dielectric welding, and laser welding. A method for filling the contents of the container can be adopted.
[0048]
According to such a method, the film can be sealed again, and the contents can be preserved without contamination by bacteria and foreign substances.
[0049]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the sealing method and the opening method according to the present invention will be described with reference to the drawings. FIG. 1 is a schematic sectional view showing a medical container to which the method according to the present invention is applied. In FIG. 1, 1 is a medical container, 2 is a container portion, 3 is a mouth portion, and 4 is an opening. The medical container 1 has a structure in which a substantially cylindrical mouth 3 is attached to a container 2. The contents are injected into the container part 2 through the mouth part 3. In FIG. 1, the container portion 2 has a bottle shape, but can have another shape according to the bag shape or the contents.
[0050]
At the time when the container 1 is manufactured, the mouth portion 3 is in an open state. Therefore, until the contents are injected, it is necessary to keep the opening 4 covered so as to prevent entry of various bacteria and foreign substances. It is also necessary to prevent deformation of the container 2 during transportation.
[0051]
In the present invention, a method is employed in which a synthetic resin film is welded to the surface of the mouth portion 3, the opening 4 is sealed with the synthetic resin film, and the medical container 1 is sealed. The welding method can be any of heat, ultrasonic waves, high-frequency dielectric, and laser. Hereinafter, each method will be described. In addition, the material of the synthetic resin film is preferably the same material as the mouth part 3, and polypropylene or polyethylene is suitable.
[0052]
FIG. 2 is a diagram showing a method of welding a film by thermal welding. In the figure, a synthetic resin film 5 is arranged so as to cover the mouth 3. In order to increase the welding area, the mouth 3 has a flange 3 a, and the flange 3 a is fixed on the anvil 11. The heating element 10 has a ridge 10a so as to be able to contact the flange 3a, and the ridge 10a has a shape along the flange 3a.
[0053]
The ridge 10a of the heating element 10 comes into contact with the film 5, and the film 5 starts to melt. Next, the flange 3a is also melted, and the film 5 and the flange 3a are welded. After the welding is completed, if the film 5 is appropriately cut, the sealing is completed. If the winding device 12 and the roller 13 are provided, the film 5 can be sequentially supplied, so that the efficiency of film welding is improved. Further, the heating element 10 can be heated by an electric heater or the like. In addition, it is also possible to provide the blade part 15 and to cut the film 5 by moving the blade part 15 downward after welding is completed.
[0054]
FIG. 3 is a view showing a method of welding a film by ultrasonic vibration. As in FIG. 2, the synthetic resin film 5 is arranged so as to cover the mouth 3, and the flange 3 a is fixed on the anvil 11. The ultrasonic vibrator 20 has a ridge 20a that can contact the flange 3a, and the ridge 10a has a shape along the flange 3a. The ultrasonic vibrator 20 is a vibrator that generates longitudinal vibration (vibration of vertical reciprocation in the direction A in the figure), torsional vibration (vibration of rotary reciprocation in the direction of B in the figure), or a mixture of these vibrations It is.
[0055]
When the ultrasonic vibrator 20 moves downward while vibrating, the ridge 20a comes into contact with the film 5, and the film 5 is vibrated while being pressed. Friction occurs between the film 5 and the flange 3a, generating frictional heat. The film 5 and the flange 3a are melted by the frictional heat to be welded.
[0056]
The ridge 20a may be one or more ring-shaped ridges. In the case of vibration including torsional vibration, if the vibrator 20 has a blade portion, the film can be cut together with welding due to torsional vibration. In addition, since the heat is generated locally, a relatively thin film can be welded.
[0057]
FIG. 4 is a view showing a method of welding a film by high-frequency dielectric. A pair of electrodes 30 are disposed so as to sandwich the film 5 and the flange 3a in close contact (in the drawing, they are spaced apart for the sake of explanation), and a high-frequency power supply 31 is connected to the electrodes 30. I have.
[0058]
When the high-frequency current flows between the electrodes 30, the film 5 and the flange 3a are dielectrically heated by the dielectric loss of the film 5 and the flange 3a. As a result, the film 5 and the flange 3a are welded by melting. Also in this method, since the heat is generated locally, it is possible to weld a relatively thin film. In addition, the film 5 and the flange 3a can be efficiently welded with each other as long as the material has a high dielectric loss. By selecting a frequency having a high dielectric loss, the efficiency can be further increased.
[0059]
FIG. 5 is a diagram showing a method of welding a film by a laser. In the figure, a laser beam 41 emitted from a laser oscillator 40 has its direction changed by an optical system 42 and irradiates the film 5 arranged on the flange 3a. The irradiated film 5 is heated by the energy of the laser light 41. At the same time, since the film 5 is transparent or translucent, a part of the laser light 41 is transmitted and the flange 3a is also heated. As a result, the film 5 and the flange 3a are melted and welded to each other. Also in this method, since the heat is generated locally, it is possible to weld a relatively thin film. The optical system 42 can scan the laser beam 41 along the flange 3a or change the width of laser irradiation. Further, if the laser light 41 is branched into a plurality of parts by a prism, a half mirror, a beam splitter, or the like, the film can be welded to a plurality of containers at the same time. Since the contact portion with the flange 3a is directly heated, it can be satisfactorily welded to a film having a thickness of 1 mm or more. In addition, in the welding method shown in FIGS. 3 to 5, the blade 5 shown in FIG. 2 can be provided to cut the film 5.
[0060]
The synthetic resin film used in the method according to the present invention may be a single-layer or multi-layer film, but if it is a two-layer or more peelable multilayer film, it can be easily opened by peeling. No film remains or breaks. In particular, a multilayer film for easy peel (a multilayer film having easy peelability) can be preferably used, and any type of film such as cohesive peeling, interlayer peeling, and interfacial peeling can be used. In addition, the multilayer film for easy peel can be suitably welded by the above-mentioned heat welding or ultrasonic welding.
[0061]
In the medical container sealed by the above-described method, since the opening at the mouth is sealed with a synthetic resin film, the seal can be easily opened by peeling or dissolving, and there is a possibility that a piece of film or the like may remain in the container. Absent.
[0062]
Further, as shown in FIG. 6 (a), the mouth 3 has a flange 3a, and the surface of the inner peripheral portion 3b of the flange 3a forms a step 3d with the surface of the outer peripheral portion 3c of the flange 3a. , The synthetic resin film 5 is welded to the surface of the outer peripheral portion 3c of the flange 3a at the welding portion 16, and the opening 4 of the mouth portion 1 is sealed.
[0063]
In this case, when a seal opening method by melting and shrinking, which will be described later, is adopted, as shown in FIG. 6 (b), the melted and shrunken film 5 remains on the step 3d, and the container 5 1 Does not protrude outward. As a result, welding of the synthetic resin film, the cap, and the like performed after the filling of the contents is facilitated.
[0064]
The step between the surface of the outer peripheral portion 3c and the surface of the inner peripheral portion 3b of the flange 3a is preferably 0.3 to 1.5 mm. When the thickness is less than 0.3 mm, the film 5 in which the step portion 3d shrinks so small cannot be accommodated, which hinders resealing and cap welding performed after filling the contents. On the other hand, when the thickness exceeds 1.5 mm, the thickness of the flange 3a may be partially reduced, and the strength of the flange 3a may be reduced.
[0065]
In addition, as shown in FIG. 6C, a projection-shaped welding margin 17 is provided on the surface 3e of the flange 3a by heat welding or ultrasonic welding, and the welding margin 17 and the film 5 are welded to each other. In this case, as shown in FIG. 6D, the height of the projection of the welding margin 17 is increased, the welding is performed so that a part of the welding margin 17 remains, and the remaining welding margin 17 and the flange surface 3e form a step. The unit 3d can be configured. Even if a step is not provided in the flange 3a in advance, the same effect can be obtained because the step 3d is formed. In addition, it is preferable that the step d is also 0.3 to 1.5 mm.
[0066]
When the thickness of the mouth portion 3 is relatively thick, an outer peripheral portion and an inner peripheral portion are provided, and a mouth portion having a step similar to the step 3d can be provided. Similarly, since the film that has been dissolved and shrunk at the time of opening remains on the step portion, the same effect can be obtained.
[0067]
Next, a method of opening the container sealed by the above-described method will be described. As described above, the welded film is thin, so that it can be opened by cutting or breaking, but there is a possibility that a piece of the film remains as a foreign substance. Therefore, it is preferable to open the film by dissolving and shrinking the film. In particular, a method of dissolving and shrinking the synthetic resin film from the center thereof and opening the synthetic resin film is more preferable. Hereinafter, the method will be described.
[0068]
FIG. 7 is a diagram illustrating a method of opening the seal with hot air. In the figure, hot air 50 delivered from an outlet 51 of a hot air generator (not shown) is applied to a substantially central portion of the film 5 so that the hot air reaching the central portion of the synthetic resin film 5 is maximized. I have. The hot air 50 causes the dissolution of the film 5 to start. As a result, the container 1 is opened. The hot air generator may be a known one, and may be a combination of a heating element such as an electric heater and a blower such as a fan.
[0069]
FIG. 8 is a diagram illustrating a method of opening a seal by radiant heat. In the figure, radiant heat 61 is emitted from a tunnel-shaped heating element 60. When the mouth 3 of the container 1 is passed through the heating element 60, the radiant heat 61 causes the film 5 to start melting, but at the same time, the film 5 shrinks from the center of the film 5 to the edge of the mouth 3. As a result, the container 1 is opened. Note that the heating element may have any shape, such as a flat plate or a mountain shape, instead of the tunnel shape.
[0070]
FIG. 9 is a view showing another method of opening the seal by radiant heat. In the figure, the distance between the central portion of the synthetic resin film 5 and the heat generating end portion 62a is the shortest, the distance between the peripheral portion of the synthetic resin film 5 and the heat generating peripheral portion 62b is relatively long, and the central portion of the synthetic resin film 5 is small. The radiant heat 61 is emitted from the heat generating body 62 having the heat generating front end portion 62a and the heat generating peripheral portion 62b at which the amount of radiant heat reaching the radiating heat reaches the maximum. When the leading end portion 62a approaches the substantially central portion of the film 5, melting starts from the central portion of the film 5 due to the radiant heat 61, and at the same time, the film 5 contracts from the central portion of the film 5 to the edge of the mouth portion 3. As a result, the container 1 is opened, but since the film 5 is uniformly dissolved and shrunk from the center of the film 5 toward the periphery, the container 5 can be opened efficiently.
[0071]
Further, since the distance between the central portion of the synthetic resin film 5 and the heat-generating front end portion 62a is the shortest, and the distance between the peripheral portion of the synthetic resin film 5 and the heat-generating peripheral portion 62b is relatively long, the amount of radiant heat emitted to the film 5 Since the central portion is the most non-uniform, the melt shrinkage does not spread to the periphery, and the dissolved film does not fall and remain in the container 1. Of course, it is preferable that the lip 3 has a flange structure having the step 3d shown in FIG. Further, when the thickness of the mouth portion 3 is large, a structure in which a step portion is provided in the mouth portion 3 without providing a flange may be adopted.
[0072]
FIG. 10 is a diagram illustrating a method of opening a seal by a laser. In the figure, a laser beam 71 emitted from a laser oscillator 70 has its direction changed by an optical system 42, is spread, and irradiates substantially the center of the film 5. The irradiated film 5 is heated by the energy of the laser light 71. The dissolution of the film 5 starts, but at the same time, the film 5 shrinks from the center of the film 5 to the edge of the lip 3. As a result, the container 1 is opened. As in the case of welding, if the laser beam 71 is branched, a plurality of containers can be opened at the same time.
[0073]
When a high-frequency current is passed around the metal body, the metal body generates heat by high-frequency dielectric as in the case of welding, and the film is melted and shrunk by bringing the heating element close to the metal body, and the container is opened. In addition, as a method utilizing dielectric loss, a method of irradiating a microwave is possible. Since the microwave has a high frequency and does not penetrate into the material, only the surface is heated. In the case of the present invention, only a relatively thin film is dissolved and shrunk, and the container can be opened.
[0074]
FIG. 11 is a diagram illustrating a method of opening a seal by electromagnetic induction. In the figure, a coil 81 is wound so as to surround a rod-shaped heating element 80. When a high-frequency current is applied to the coil 81 by the high-frequency power supply 82, the heating element 80 is heated by electromagnetic induction. As a result, the container 1 is opened by the radiant heat from the heating element 80. Note that the heating element 80 can be made of a metal such as iron or stainless steel or a magnetic substance, and may have another shape other than a rod shape. Further, in order to suppress disconnection due to heat generation of the coil 81 itself, it is preferable to flow cooling water in the coil 81. For example, a copper pipe or the like has good conductivity and heat conductivity, and can be suitably used.
[0075]
FIG. 12 is a diagram showing a method of opening the seal from the notch. In the figure, a suction unit 90 such as a tube or a tube abuts a substantially central portion of the film 5 to suck and hold the film 5. The blade 91 cuts out the film 5 along the inner peripheral portion of the film 5. Even if the film 5 is notched, the film 5 is held by the suction unit 90, and the film 5 can be removed by the suction unit 90, and does not remain in the container 1.
[0076]
By the way, after injecting the contents into the container, it may be necessary to temporarily store the contents again. In such a case, first, the synthetic resin film is opened by any one of the above-described hot air, radiant heat, laser, high-frequency dielectric, electromagnetic induction, notch, and peeling. Next, the contents are filled in a container, and the above-described heat welding, ultrasonic vibration welding, high-frequency dielectric welding, or laser welding is performed, and the opening of the mouth portion is again welded with a synthetic resin film or a cap. A method of filling the contents of the medical container to be sealed can be adopted, and the contents can be stored without contamination by bacteria and foreign matter.
[0077]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, since a synthetic resin film is welded and sealed at the mouth part of a medical container, it is possible to prevent mixing of various bacteria and foreign substances and prevent deformation during transportation. Also, at the time of opening, the synthetic resin film is dissolved and shrunk, so that the opening can be performed without leaving a cut piece or the like as a foreign substance.
[Brief description of the drawings]
FIG. 1 is a schematic sectional view showing a medical container to which a method according to the present invention is applied.
FIG. 2 is a view showing a method of welding a film by thermal welding.
FIG. 3 is a view showing a method of welding a film by ultrasonic vibration.
FIG. 4 is a view showing a method of welding a film by high-frequency dielectric.
FIG. 5 is a view showing a method of welding a film by a laser.
FIG. 6 is a sectional view of a main part of a mouth part of the medical container according to the present invention. (A) shows a cross section before opening, and (b) shows a cross section after opening. (C) shows a state where the step is formed by the welding margin, and (d) shows a state where the step is formed by the welding margin.
FIG. 7 is a diagram showing a method of opening a seal by hot air.
FIG. 8 is a diagram showing a method of opening a seal by radiant heat.
FIG. 9 is a view showing another method of opening the seal by radiant heat.
FIG. 10 is a diagram showing a method of opening a seal by a laser.
FIG. 11 is a diagram showing a method of opening a seal by electromagnetic induction.
FIG. 12 is a diagram showing a method of opening a seal by notching.
[Explanation of symbols]
1 medical container
2 Container section
3 lips
3a Flange part
4 opening
5 Synthetic resin film
10 Heating element
11 Anvil
12 Winding device
15 Blade
16 Welding part
20 Ultrasonic transducer
30 High frequency power supply
40, 70 laser oscillator

Claims (21)

口元部を有する医療用容器において、その口元部の表面に合成樹脂フィルムを超音波縦振動又は超音波ねじり振動若しくはこれらの混合の振動により溶着し、口元部の開口部をシールする医療用容器の密閉方法。In a medical container having a mouth portion, a synthetic resin film is welded to the surface of the mouth portion by ultrasonic longitudinal vibration or ultrasonic torsional vibration or a mixture of these, and a medical container for sealing the opening of the mouth portion. Sealing method. 口元部を有する医療用容器において、その口元部の表面に合成樹脂フィルムを高周波誘電溶着により溶着し、口元部の開口部をシールする医療用容器の密閉方法。A method for hermetically sealing a medical container having a mouth portion, wherein a synthetic resin film is welded to the surface of the mouth portion by high-frequency dielectric welding to seal an opening portion of the mouth portion. 口元部を有する医療用容器において、その口元部の表面に合成樹脂フィルムをレーザー溶着により溶着し、口元部の開口部をシールする医療用容器の密閉方法。A method for hermetically sealing a medical container having a mouth portion, wherein a synthetic resin film is welded to a surface of the mouth portion by laser welding to seal an opening of the mouth portion. 前記合成樹脂フィルムは二層以上のイージーピール用多層フィルムである請求項1乃至4のいずれかに記載の医療用容器の密閉方法。The method for sealing a medical container according to any one of claims 1 to 4, wherein the synthetic resin film is a multilayer film for easy peel having two or more layers. 口元部を有する医療用容器において、その口元部の表面に合成樹脂フィルムを熱溶着により溶着し、口元部の開口部をシールする医療用容器の密閉方法。A method for hermetically sealing a medical container having a mouth portion, wherein a synthetic resin film is welded to the surface of the mouth portion by heat welding to seal an opening of the mouth portion. 請求項1乃至5のいずれかに記載の方法により、口元部の開口部が合成樹脂フィルムによりシールされた医療用容器。A medical container wherein the opening at the mouth is sealed with a synthetic resin film by the method according to any one of claims 1 to 5. 前記口元部がフランジを有し、前記フランジの内周部表面が前記フランジの外周部表面に対し段部をなして容器下部側に配置され、前記フランジの外周部表面に合成樹脂フィルムが溶着され、前記口元部の開口部がシールされた請求項6に記載の医療用容器。The mouth portion has a flange, an inner peripheral surface of the flange is arranged on the lower side of the container in a stepped manner with respect to an outer peripheral surface of the flange, and a synthetic resin film is welded to the outer peripheral surface of the flange. The medical container according to claim 6, wherein the opening of the mouth portion is sealed. 前記フランジの外周部表面と前記フランジの内周部表面との段差が0.3〜1.5mmである請求項7に記載の医療用容器。The medical container according to claim 7, wherein a step between an outer peripheral surface of the flange and an inner peripheral surface of the flange is 0.3 to 1.5 mm. 前記口元部の内周部表面が前記口元部の外周部表面に対し段部をなして容器下部側に配置され、前記前記口元部の外周部表面に合成樹脂フィルムが溶着され、前記口元部の開口部がシールされた請求項6に記載の医療用容器。The inner peripheral surface of the lip is stepped with respect to the outer peripheral surface of the lip at the lower part of the container, a synthetic resin film is welded to the outer peripheral surface of the lip, and 7. The medical container according to claim 6, wherein the opening is sealed. 口元部を有し、前記口元部の開口部が合成樹脂フィルムによりシールされた医療用容器において、前記合成樹脂フィルムをその中央部から溶解収縮させて開封する医療用容器の開封方法。A method for opening a medical container, comprising: a medical container having a mouth portion, wherein the opening portion of the mouth portion is sealed with a synthetic resin film, wherein the synthetic resin film is melted and shrunk from a central portion thereof and opened. 合成樹脂フィルムの中央部と発熱先端部との距離が最短で、前記合成樹脂フィルムの周辺部と発熱周辺部との距離が相対的に長く、前記合成樹脂フィルムの中央部に到達する輻射熱量が最大となる発熱先端部及び発熱周辺部を備えた発熱体を用いて、当該発熱体を接近させ、前記発熱体からの輻射熱により、前記合成樹脂フィルムを中央部より溶解収縮させて開封する請求項9記載の医療用容器の開封方法。The distance between the central portion of the synthetic resin film and the heat-generating tip is the shortest, the distance between the peripheral portion of the synthetic resin film and the heat-generating peripheral portion is relatively long, and the amount of radiant heat reaching the central portion of the synthetic resin film is small. Using a heating element having a heat-generating tip portion and a heat-generating peripheral portion that are the largest, bringing the heating element close to the heating element, and radiating heat from the heating element to melt and shrink the synthetic resin film from a central portion and open the synthetic resin film. 10. The method for opening a medical container according to item 9. 合成樹脂フィルムの中央部に到達する熱風が最大となる熱風手段より、前記合成樹脂フィルムを中央部より溶解収縮させて開封する請求項9記載の医療用容器の開封方法。10. The method for opening a medical container according to claim 9, wherein the synthetic resin film is melted and shrunk from the central portion to be opened by hot air means that maximizes hot air reaching the central portion of the synthetic resin film. 前記口元部がフランジを有し、前記フランジの内周部表面が前記フランジの外周部表面に対し段部をなして容器下部側に配置され、前記フランジの外周部表面に合成樹脂フィルムが溶着され、前記口元部の開口部がシールされた医療用容器において、前記合成樹脂フィルムをその中央部から溶解収縮させて開封する医療用容器の開封方法。The mouth portion has a flange, an inner peripheral surface of the flange is arranged on the lower side of the container in a stepped manner with respect to an outer peripheral surface of the flange, and a synthetic resin film is welded to the outer peripheral surface of the flange. A method for unsealing a medical container in which the synthetic resin film is melted and shrunk from the center thereof to open the medical container in which the opening of the mouth is sealed. 前記口元部の内周部表面が前記口元部の外周部表面に対し段部をなして容器下部側に配置され、前記口元部の外周部表面に合成樹脂フィルムが溶着され、前記口元部の開口部がシールされた医療用容器において、前記合成樹脂フィルムをその中央部から溶解収縮させて開封する医療用容器の開封方法。The inner peripheral surface of the lip portion is disposed on the lower side of the container with a step with respect to the outer peripheral surface of the lip portion, and a synthetic resin film is welded to the outer peripheral surface of the lip portion, and the opening of the lip portion is opened. A method for unsealing a medical container in which a synthetic resin film is dissolved and shrunk from the center of the medical container, and the synthetic resin film is opened in a sealed medical container. 口元部を有し、前記口元部の開口部が合成樹脂フィルムによりシールされた医療用容器において、前記合成樹脂フィルムにレーザー光を照射し、前記合成樹脂フィルムを溶解収縮させて開封する医療用容器の開封方法。A medical container having a mouth portion, wherein the mouth portion of the mouth portion is sealed with a synthetic resin film, and the synthetic resin film is irradiated with a laser beam to dissolve and shrink the synthetic resin film, thereby opening the medical container. How to open. 口元部を有し、前記口元部の開口部が合成樹脂フィルムによりシールされた医療用容器において、前記合成樹脂フィルムを高周波誘電により、前記合成樹脂フィルムを溶解収縮させ開封する医療用容器の開封方法。In a medical container having a mouth portion and an opening portion of the mouth portion sealed with a synthetic resin film, a method of opening a medical container in which the synthetic resin film is melted and shrunk by high-frequency dielectric to dissolve and shrink the synthetic resin film. . 口元部を有し、前記口元部の開口部が合成樹脂フィルムによりシールされた医療用容器において、前記合成樹脂フィルムを電磁誘導により、前記合成樹脂フィルムを溶解収縮させて開封する医療用容器の開封方法。In a medical container having a mouth portion and an opening of the mouth portion sealed with a synthetic resin film, the synthetic resin film is opened by dissolving and shrinking the synthetic resin film by electromagnetic induction by electromagnetic induction. Method. 口元部を有し、前記口元部の開口部が合成樹脂フィルムによりシールされた医療用容器において、前記合成樹脂フィルムを保持し、前記合成樹脂フィルムの内周部を切欠し、切欠された前記合成樹脂フィルム片を除去して開封する医療用容器の開封方法。In a medical container having a mouth portion and an opening portion of the mouth portion sealed with a synthetic resin film, the synthetic resin film is held, an inner peripheral portion of the synthetic resin film is cut, and the cut synthetic resin is cut. A method for opening a medical container in which a resin film piece is removed and opened. 口元部を有し、前記口元部の開口部が剥離可能な合成樹脂フィルムによりシールされた医療用容器において、前記合成樹脂フィルムを剥離して開封する医療用容器の開封方法。A method for opening a medical container, comprising: a medical container having a mouth portion and an opening of the mouth portion sealed with a peelable synthetic resin film, wherein the synthetic resin film is peeled off and opened. 請求項10乃至19のいずれかに記載の方法により、医療用容器の口元部の開口部をシールする合成樹脂フィルムを開封し、前記医療用容器内に内容物を充填し、請求項1乃至5のいずれかに記載の方法により、再び口元部の開口部を合成樹脂フィルム又はキャップの溶着により密封する医療用容器の内容物充填方法。20. The method according to any one of claims 10 to 19, wherein the synthetic resin film for sealing the opening at the mouth of the medical container is opened, and the contents are filled in the medical container. A method for filling the contents of a medical container, wherein the opening at the mouth is sealed again by welding a synthetic resin film or a cap by the method according to any one of the above. 請求項1乃至5のいずれかの方法により口元部の開口部をシールし、この医療用容器の口元部の開口部をシールされた合成樹脂フィルムを、請求項10乃至19のいずれかに記載の方法により開封し、前記医療用容器内に内容物を充填し、請求項1乃至5のいずれかに記載の方法により、再び口元部の開口部を合成樹脂フィルム又はキャップの溶着により密封する医療用容器の内容物充填方法。The synthetic resin film according to any one of claims 10 to 19, wherein the opening of the mouth is sealed by the method of any one of claims 1 to 5, and the opening of the mouth of the medical container is sealed. A medical container which is opened by a method, the contents are filled in the medical container, and the opening at the mouth is sealed again by welding a synthetic resin film or a cap by the method according to any one of claims 1 to 5. How to fill the contents of the container.
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007105872A1 (en) * 2006-03-14 2007-09-20 Ki Seok Choi Portable aluminum foil sealing apparatus
JP2008246696A (en) * 2007-03-29 2008-10-16 Seiko Epson Corp Liquid container, its regeneration method, sealing method of liquid container
JP2009029514A (en) * 2007-06-26 2009-02-12 Dainippon Printing Co Ltd Pouch container
WO2012131847A1 (en) * 2011-03-25 2012-10-04 株式会社クニムネ Apparatus for manufacturing organic polymer crystal
JP2017026381A (en) * 2015-07-17 2017-02-02 株式会社アローテクノ Specimen sampling tube seal removal device
EP4140704A1 (en) * 2021-08-30 2023-03-01 Branson Ultraschall Niederlassung der Emerson Technologies GmbH & Co. oHG Connection method using a laser transmission bonding technology, an apparatus for bonding as well as a part made of a laser transmissive bonded first plastic part and a second plastic part
KR102563975B1 (en) * 2022-05-31 2023-08-03 김종필 Apparatus for injecting reagent

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007105872A1 (en) * 2006-03-14 2007-09-20 Ki Seok Choi Portable aluminum foil sealing apparatus
JP2008246696A (en) * 2007-03-29 2008-10-16 Seiko Epson Corp Liquid container, its regeneration method, sealing method of liquid container
JP2009029514A (en) * 2007-06-26 2009-02-12 Dainippon Printing Co Ltd Pouch container
WO2012131847A1 (en) * 2011-03-25 2012-10-04 株式会社クニムネ Apparatus for manufacturing organic polymer crystal
JPWO2012131847A1 (en) * 2011-03-25 2014-07-24 株式会社クニムネ Organic polymer crystal production equipment
JP2017026381A (en) * 2015-07-17 2017-02-02 株式会社アローテクノ Specimen sampling tube seal removal device
EP4140704A1 (en) * 2021-08-30 2023-03-01 Branson Ultraschall Niederlassung der Emerson Technologies GmbH & Co. oHG Connection method using a laser transmission bonding technology, an apparatus for bonding as well as a part made of a laser transmissive bonded first plastic part and a second plastic part
JP7474285B2 (en) 2021-08-30 2024-04-24 ブランソン ウルトラスチャル ニーデルラッスン デル エマーソン テクノロジーズ ゲゼルシャフト ミット ベシュレンクテル ハフツング アンド カンパニー オーエイチジー Method for connecting using a laser transmission joining technique, device for joining, and part made of a laser transmission joined first plastic part and a second plastic part
KR102563975B1 (en) * 2022-05-31 2023-08-03 김종필 Apparatus for injecting reagent
WO2023234483A1 (en) * 2022-05-31 2023-12-07 김종필 Reagent injection device

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