CN2836798Y - 具有一个或多个端口的塑料袋 - Google Patents

具有一个或多个端口的塑料袋 Download PDF

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Publication number
CN2836798Y
CN2836798Y CNU2005200158844U CN200520015884U CN2836798Y CN 2836798 Y CN2836798 Y CN 2836798Y CN U2005200158844 U CNU2005200158844 U CN U2005200158844U CN 200520015884 U CN200520015884 U CN 200520015884U CN 2836798 Y CN2836798 Y CN 2836798Y
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China
Prior art keywords
port
plastic
plastic bag
weld zone
cross
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Expired - Lifetime
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CNU2005200158844U
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English (en)
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斯特凡·普勒
弗里德里希·穆特
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PLUMAT PLATE & LUBECK and Co GmbH
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PLUMAT PLATE & LUBECK and Co GmbH
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/05—Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
    • A61J1/10—Bag-type containers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/05—Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
    • A61J1/10—Bag-type containers
    • A61J1/12—Bag-type containers with means for holding samples of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint 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
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single 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
    • B29C66/133—Fin-type joints, the parts to be joined being flexible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/347—General aspects dealing with the joint area or with the area to be joined using particular temperature distributions or gradients; using particular heat distributions or gradients
    • B29C66/3472—General aspects dealing with the joint area or with the area to be joined using particular temperature distributions or gradients; using particular heat distributions or gradients in the plane of the joint, e.g. along the joint line in the plane of the joint or perpendicular to the joint line in the plane of the joint
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General 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
    • B29C66/51—Joining 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
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5326—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially flat
    • B29C66/53261—Enclosing tubular articles between substantially flat elements
    • B29C66/53262—Enclosing spouts between the walls of bags, e.g. of medical bags
    • B29C66/53263—Enclosing spouts between the walls of bags, e.g. of medical bags said spouts comprising wings, e.g. said spouts being of ship-like or canoe-like form to avoid leaks in the corners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General 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
    • B29C66/72—General 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
    • B29C66/723—General 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
    • B29C66/7234—General 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 comprising a barrier layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General 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
    • B29C66/814—General 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
    • B29C66/8141—General 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
    • B29C66/81431—General 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 cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • B29C66/91423—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools using joining tools having different temperature zones or using several joining tools with different temperatures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91431—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being kept constant over time
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • B29C66/91931—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined
    • B29C66/91933—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined higher than said fusion temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/05—Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular 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
    • B29C66/2424—Particular 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 a closed polygonal chain
    • B29C66/24243—Particular 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 a closed polygonal chain forming a quadrilateral
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General 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
    • B29C66/71—General 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7148—Blood bags, medical bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/84—Forming or attaching means for filling or dispensing contents, e.g. valves or spouts
    • B31B70/844—Applying rigid valves, spouts, or filling tubes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hematology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Plasma & Fusion (AREA)
  • Bag Frames (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Making Paper Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

本实用新型涉及具有一个或多个端口(30)的由塑料薄膜(20)制成的塑料袋(10)。该端口中的至少一个包括一个塑料元件(40)，该塑料元件(40)被焊入两层塑料薄膜(22、24)之间，且在此情况下形成一个端口焊接区(50)。在端口焊接区(50)中可平压塑料元件(40)。无载荷的、未压缩的塑料元件(40)的横截面在朝着端口焊接区(50)的侧边缘的方向上呈楔形走向。塑料元件(40)在端口焊接区(50)中包括至少一个第一棱边(80)。

Description

具有一个或多个端口的塑料袋
技术领域
本发明涉及塑料加工领域。本发明涉及一种具有一个或多个端口的塑料袋和一种供一端口用的塑料元件。
背景技术
在医疗领域中使用通常形式为薄膜袋的塑料袋。它被用于多个方面。塑料袋可用于收容注射液，还可用于储存血液(贮藏血)和消毒的医疗用液体。塑料袋需要有构造为所谓的端口的充填和抽取装置。塑料袋可依照使用目的具有一个、两个或多个端口。每个端口可按照设定的使用方式具有特定的造型和/或独立的结构组成部分。
例如，文献DE19634944C1和DE19958952A1公开了用于制造塑料袋中的端口的方法。文献中描述的制造方法为，将一个由塑料制成的整体插件焊入由两层重叠的塑料薄膜构成的塑料袋的边缘区域中。该插件由一个横截面积足够大的实心塑料物件构成，这样就能在插件中有选择地安置一个、两个或多个各自具有圆柱形通流横截面的端口。
因此，如果其具有平展的横截面形状的话，就可将这种较大的实心插件焊入塑料袋壁式薄膜的边缘之间，该横截面形状在塑料袋壁式薄膜的焊接边缘之间伸展，且在壁式薄膜的焊接边缘之间渐成尖角(“梭形”)，以便在该“楔形区”中在闭合的两半模具焊接型模的型模施压面靠近时，一方面在插件的焊接面与塑料袋壁式薄膜的焊接边缘之间，另一方面在塑料袋相对置的壁式薄膜的焊接边缘之间(与插件相邻)保持密实的焊接连接。
这与塑料袋是由带有环形焊接边缘的两重叠薄膜幅面制造还是由软管薄膜制造无关，其中，焊缝落在塑料袋壁式薄膜的纵侧上。该带焊入端口的塑料袋的制造方法的目的在于，能够简单且以较多件数低价格地制造袋子(参见DE19634944C1)。在此情况下，大多只能一次性使用的塑料袋也还是得满足有关密封性和无菌性或杀菌能力的高要求。
迄今为止，难于在焊入已知的端口插件时在渐成尖角的插件与壁式薄膜的焊接边缘之间的楔形区中保持高度密封的焊接连接。此外，这缘于对制造方法高生产率的要求，其中，对于焊接过程而言，通常使用具有多重型模的模具焊接装置(也就是说，多个分别具有待焊接的端口插件的塑料袋在同一模具焊接型模中平行并排，且在一个工作行程中焊接)，模具焊接型模在焊接过程之后非常快地开启，这样尚未充分冷却的焊缝在开启模具焊接型模时就会重新张开。
在工作过程中焊接塑料袋，会因插件的厚度额外地产生所谓的拉薄效应。两层平靠着的薄膜必须包住插件，并由此在通过压模挤压时在插件的区域中展开。
已提出有不同的方案来克服楔形区中的变薄和拉薄效应。Fresenius的公开文献DE2521475中提出了：在两塑料薄膜之间安插位于作为塑料元件的圆柱形套管或软管上的翼形凸肩。通过减小翼区域中的材料厚度，能够平压套管，从而减弱拉薄效应。
Fresenius文献中的缺陷是，需要针对具有翼形凸肩的塑料元件作出造型。翼形凸肩对塑料元件有着较高的材料要求。由于翼形凸肩的存在，端口焊接区整体上扩大，且塑料袋在翼区域中的柔韧性降低。
在Reinhold的专利申请DE10341910A1中，提出了一种端口柔韧、壁薄的设计方案，其在端口焊接区中具有所谓的“椭圆形”横截面。由于使用了因壁薄而柔韧的塑料元件，拉薄效应得以克服。这是以与Fresenius文献中相似的方式进行的，其方法是在焊接过程中可平压塑料元件。在横截面为椭圆形的情况下，边缘处的楔形会合加强了自端口向塑料袋过渡时焊接连接的稳定性。Reinhold的申请文献强调了柔韧端口的必要性，并描述了单独的袋装填入口的优点。
Reinhold文献中阐述的方案产生了行程稳定性方面的问题。端口在其柔韧的椭圆形区域中易受压和折断，这会导致无意之中封闭塑料袋。这样一来，压缩之后端口的柔韧性和再分开必须仅通过壁厚度和材料选择实现，人们为此在选择较小的壁厚值及选择材料时受到严格的限制。
Baxter的专利文献DE69713051T2也提出了对实现端口的塑料元件进行压缩以避免拉薄效应的方案。在Baxter的专利文献中，能平压一个成圆形的元件，该成圆形的元件优选是一个软管，以避免采取复杂的制造方法如注塑技术。通过这种平压，可避免拉薄效应。Baxter的文献亦提到了：对于软管而言，原则上可采用横截面形状不同于圆形的插件，例如横截面为椭圆形或多边形。这些形状在Baxter的文献中未作进一步的描述，始终被视作是成圆形元件的改型。
如同Reinhold的文献一样，Baxter的专利也未采取额外的防护措施，这些措施在成圆形的元件压缩之后再分开时加强过渡区的薄弱部位或减小该区域中产生的应力。上述Reinhold文献中易折断的疑难问题在Baxter的专利中依然存在。
发明内容
本发明的目的在于，提供一种改进的具有一个或多个端口的塑料袋和一种改进的供一个或多个端口用的塑料元件。塑料袋和端口的连接部位在此紧密闭合且可加载荷。塑料元件与塑料袋和制造方法相匹配。
本发明的另一个目的在于，防止塑料元件折断。使端口难于意外封闭。
根据本发明，这些目的和其他目的是通过具有一个或多个端口的由塑料薄膜制成的塑料袋实现的。这些端口中的至少一个包括一个塑料元件，其被焊入两层塑料薄膜之间且在此情况下形成一个端口焊接区。在端口焊接区中可平压该塑料元件。无载荷的、未压缩的塑料元件的横截面在朝向端口焊接区的侧边缘的方向上呈楔形走向。塑料元件在端口焊接区中包括至少一个第一棱边。
由于塑料元件可平压，则能消除或减弱端口焊接区中所述的拉薄效应。在侧向端口焊接区中呈楔形的横截面防止或减少了应力在塑料薄膜相靠的楔形区中的产生。当例如圆形元件在平压之后再次弹回到其圆形形状并在此情况下增大了楔角时，会产生这种应力。
塑料元件中的至少一个第一棱边用于提高塑料元件的稳定性，塑料元件也就难于被折断了。该第一棱边也改善了塑料元件在平压之后再分开的情况。此外，该第一棱边提高了在设计塑料元件时与端口焊接区中塑料元件的材料选择和所需壁厚相关的自由度。
优选的是，该端口焊接区中塑料元件的一个或多个第一棱边基本上平行于端口焊接区的侧边缘。在此情况下，基本上平行意味着易向塑料袋平面倾斜。例如在端口焊接区的侧边缘渐扩的情况下，基本上平行也意味着处于端口焊接区渐扩侧边缘的中心线的方向上。这种结构形式使得塑料元件易于实现造型。
一个或多个倒圆角的第一棱边在生产技术上例如采用注塑方法容易制造，且使得塑料元件的平压简易化。倒圆角的棱边还可以塑料元件材料弯曲的形式实现，其中，基本上呈平面的表面在该弯曲处对准。
塑料件的横截面可在端口焊接区侧边缘的区域内形成第二棱边。
渐成尖角的第二棱边是有利的，因为其在楔形区中使塑料薄膜紧紧贴靠到塑料元件上，不会在焊接过程中发生材料积聚现象。在平压状态的塑料元件分离时，避免或减少了应力的产生。在将塑料薄膜焊接到塑料元件上的情况下，当楔形区中不存在倒圆角时，塑料薄膜容易紧贴到塑料元件上。
倒圆角的第二棱边例如在注塑粘滞的塑料时给制造塑料元件的方法带来了优点。
可如此设计端口焊接区侧边缘区域中楔形横截面的第二棱边，即，第二棱边，尤其是该区域中塑料元件外侧的形状，在压缩时不改变。在塑料元件分离时，因为在该棱边的较小区域内形状稳定，便不会产生运动和材料应力。这样一来，就避免或减弱了楔形区中不紧密性的形成。
塑料元件简单的且由此在生产技术上容易制成的形状在端口焊接区中具有基本上为菱形的横截面。该菱形包括两个位于楔形区中的第二棱边和两个尚能用于稳定塑料元件的第一棱边。
对于应具有宽入口的塑料元件而言，提供了六角形的横截面。楔形区中的两个第二棱边简化了焊接。四个第一棱边用于实现稳定化。通过一个平行于两第一棱边间袋平面的直线区域，能调节入口的宽度。
对于端口焊接区中塑料元件的平压而言，平展地设计塑料元件是有利的。在此情况下，塑料元件的横截面垂直于袋平面、低于袋平面。
注塑技术是一种优选的制造塑料元件的方法，采用该技术能有利地制造多个成型的塑料元件。
就材料而言，塑料元件可包括聚烯烃。优选采用聚丙稀。
就材料而言，塑料薄膜可包括聚烯烃、聚酰胺或聚酯。优选将一种由聚丙稀和/或聚丙稀共聚物制成的三层薄膜层用作塑料薄膜。在袋中作为内层的该薄膜层优选具有最低的软化点或最低的熔化温度。
在用于医疗领域的情况下，有利的是，端口可夹紧。这可通过塑料袋的设计来实现，其中，一个塑料元件的柔韧部分从塑料袋中突出并可用一个夹子夹紧。可夹紧的端口亦允许用氮或其他气体，通常优选为惰性气体，来简单地装填塑料袋。这样一来，就可采用例如用氨基酸装填的塑料袋。
对于端口上连接部分的接合而言，通常希望塑料元件在其背对塑料袋的端部为圆形。通过一个塑料元件上的第一过渡区，既可在内端口横截面中又可在外端口横截面中实现该圆形。在一个第二过渡区中或沿着整个塑料元件的长度，内横截面面积和/或外横截面面积亦可增大。
由于壁厚自端口焊接区朝着背对塑料袋的端部增加，其也可能仅在一个第三过渡区中增加，就可加强塑料元件的稳定性。
就处理操作、连接件的可行连接以及封合件的使用来说，塑料元件在背对塑料袋的端部上形状稳定是有利的。
本发明的教导包括：对于与其纵向延伸方向成横向地弹性弹动的成型的塑料元件来说，选择一种具有合适壁厚的塑料材料，其一方面具有足够的变形恢复力，另一方面具有焊接特性，其中，塑料元件的外焊接面可与塑料袋壁式薄膜的焊接边缘良好地焊接在一起，但是塑料元件在焊接过程中相互接触的内壁面却并不相互粘连或焊接。这例如可采用壁厚在端口焊接区内为约0.5毫米的聚丙稀塑料元件来实现。对于焊接方法而言，可采用所有已知的能很好调节其热负荷的塑料焊接方法，例如常见的热接触法或激光焊接法。
端口可仅与一个塑料元件整体连接。当然也可想到采取使用连接件的多元件的方案。
塑料注塑件尤其可价格低廉地生产。就这样一种包括用注塑技术制得的塑料元件的端口而言，相对于每种已知的使用方式安置并使用形状稳定的头部。例如可在塑料元件之内或之上安装一块可用注射针刺穿的薄膜和/或可刺穿的隔膜。端口可用一个装到塑料元件上的盖帽封合，其中塑料元件在端口焊接区中弹性地弹动的区域完全正常运转。
所安装的盖帽可配备一个防转动件。这可通过盖帽和塑料元件的造型实现。优选的是，防转动件由销子(所谓的卡突)和相应的凹口形成。
可将一个或两个侧唇缘、唇形凸缘和/或棱边压入一个垫片中，以便通过盖帽提高塑料袋的紧密性。在一种实施方式中，可将一种由聚丙稀或聚乙烯制成的薄膜焊接到密封棱边上，这样就避免了药品与密封材料之间发生接触。
本发明提出了一种尤其适宜的实施方式，即，在端口背对袋端部上的形状稳定且壁厚的尖角头部与端口的塑料元件弹性弹动的区域之间存在一个塑料元件的壁厚渐缩减的过渡区。因为壁厚渐缩减的过渡区具有变形恢复力，则在开启模具焊接型模时的造型使得塑料元件弹回到其敞开的横截面原始形状。
因为塑料元件在端口焊接区中是柔韧地成形的，塑料元件就能在制造具有一个或多个端口的由塑料薄膜制成的塑料袋的方法中被一个压模平压，其中端口包括一个塑料元件。通过加热可将塑料薄膜与塑料元件连接。端口焊接区中塑料元件横截面的无载荷形状朝着端口焊接区的侧边缘呈楔形走向并包括至少一个第一棱边。通过包括合适壁厚和材料在内的塑料元件的造型，基本上按与无载荷原始形状相对应的形状进行分离。
根据本发明，描述了一种塑料元件，其适用于形成塑料袋上的端口。在一个能与塑料袋连接的端口焊接区中基本上可平压该塑料元件。无载荷塑料元件的横截面在朝着端口焊接区侧边缘的方向上呈楔形走向。塑料元件的端口焊接区具有一个或多个第一棱边。
塑料元件的优选实施方式在端口焊接区中具有菱形或六边形的横截面。
附图说明
图1示出了具有一个端口的袋一部分的透视图，该端口包括一个焊入的塑料元件；
图2示出了图1中塑料元件的透视图；
图3在一垂直于袋平面的纵剖面中示出了图1中的塑料元件；
图4在端口袋平面上的纵剖面中示出了图1中的塑料元件；
图5以(a)透视图和(b)剖面图的形式示出了形式为盖帽的、适用于图1-4中塑料元件的封合件；
图6示出了焊入端口的工艺过程。
具体实施方式
图1示范性地示出了具有一个端口30的塑料袋10的透视图，端口30包括一个塑料元件40。塑料袋10的典型宽度约为10-15厘米，长度约为15-20厘米。塑料元件40被焊入塑料薄膜20的两层22、24之间。可将三层的聚丙烯薄膜用作塑料薄膜20。靠着袋内部的一层具有最低的软化温度和/或熔化温度，这样就可对塑料薄膜20进行焊接，而不会让塑料薄膜20粘在制造模具上。中间层可用作阻挡层。在塑料袋10中朝外的一层可用作保护层。塑料薄膜20的厚度约为0.1-1毫米。塑料薄膜20的组合层实现了塑料薄膜20的无菌状态。在塑料薄膜20和塑料元件40的焊接部位形成了端口焊接区50。所示出的端口焊接区50中塑料元件40的横截面60为菱形。端口焊接区50中塑料元件40的宽度也即在袋平面100中的扩张度约为1厘米。端口焊接区50中塑料元件40的高度约为0.5厘米。两个第一棱边80成倒圆角。楔形区中的两个第二棱边90为尖形，继尔用于紧密而无应力地使塑料薄膜20贴靠到塑料元件40上。塑料元件约3-5厘米长。自柔韧的第一端口端部160至形状稳定的第二端口端部170，不仅内端口横截面110的面积增大，而且外端口横截面120的面积也增大，其中，这种增大不必是连续的。壁厚同样自第一端口端部160向第二端口端部170增大。壁厚的增加也不必是连续的，壁厚可保持恒定或相对于一个短小区域再次减小，以便形成一个封合件例如盖帽180的接合装置。
塑料元件40在端口焊接区50中的壁厚约为0.5-1毫米，且增大到2毫米以上。塑料元件40在第二端口端部170上的头部呈圆形。在第一过渡区130中，实现了横截面从菱形向圆形的过渡。塑料元件40在第二端口端部170上的头部的直径为1.5-2厘米。在该实施方式中，塑料元件40是采用注塑方法由聚丙烯制成的。两塑料薄膜20相互焊接的区域以及端口焊接区50的“焊缝”的宽度都在约5-10毫米间变化。
图2、3和4在透视图和两纵剖图中示出了图1中的塑料元件40。从图2中能很好地看到，塑料元件40头部中供盖帽180的卡突200用的四个凹口190中的两个。这些凹口190在与盖帽180接合时接纳位于盖帽180上的卡突200，由此而使盖帽180定向或使盖帽180保持在该方位上并用作防转动件。同样可在头部中看到与盖帽180接合的装置。在头部的内部空间中可看到一个能压到一垫片上的唇缘210。在塑料元件40的第一端口端部160，可看到倒圆角第一棱边80中两平面元的过渡。同样可看到在塑料元件40的第一端口端部160的方向上分开的第二棱边90中的一个。在图3和4的两纵剖图中，放大示出了内端口横截面110和外端口横截面120。正如照图1所述的那样，壁厚从长约40毫米的端口焊接区50中的约0.5毫米增加到塑料元件40头部的约2毫米。在图2中可识别的环形唇缘210用于密封嵌在头部与盖帽之间的垫片，其在纵剖图中作为在塑料元件40头部的底部上凸出的凸缘示出。在头部的内侧可看到凸出的接合装置220。盖帽180上相应配合成型的凸缘230(参见图5)可从后面与接合装置220相嵌合，继尔用于压靠到一垫片上的密封盖帽180。从图3和4的两纵剖图中亦可清楚地看到端口焊接区50中塑料元件40展平的情况。
图5在(a)透视图和(b)剖视图中示出了供图1-4中端口30用的、用作封合件的盖帽180。图中示出了卡突200，其嵌合到相应的凹口190中，且由此规定了盖帽180的方位并防止了转动。同样，尤其可在图5(b)的剖视图中很好地看到元件230，它们从后面卡住图3和4中示出的接合装置220。这样一种盖帽180可采用注塑方法由聚丙烯制造。盖帽1 80具有一个理论断裂点240，一个把手状塑料部件250可在其上折断。如果盖帽中装有一个扁平垫片的话，可在折断把手状塑料部件250之后用一针头刺穿垫片。
端口30也可通过一个未示出的夹子夹紧。在该情况下，通过突出在端口焊接区中可压缩的区域来实现这种夹紧。
图6中示出了塑料袋10的制造方法的视图。柔韧的第一端口端部160被置入塑料薄膜20的两层22、24之间。模具260平压第一端口端部160，且将塑料薄膜20的两层22、24压到第一端口端部160上。通过尖的第二棱边90，塑料薄膜20可平贴在第一端口端部160上。通过进行这种平压，塑料薄膜20就不必在端口焊接区50中扩张。通过加热，可将塑料薄膜20和第一端口端部160相互连接。在移开模具260之后，第一端口端部160基本上恢复到它在焊接过程之前的原始横截面形状。
此外，根据本发明，还提供了一种制造方法，其中，用以进行挤压和焊接的模具260包括一个基本上呈平面的基座270。塑料薄膜20的一层22靠在基座270上，一个成型的压模280从上方将塑料薄膜20的第二层24压到端口30的第一端口端部160上，并将塑料薄膜20的第二层24压到塑料薄膜20的第一层22上。在该优选实施方式中，基座270保持在约100摄氏度的恒定温度。因此，该温度低于塑料薄膜20材料的软化温度。在基座270中插有一个插件275。插件275可与基座270相分开地被加热。插件275处于高出塑料薄膜20材料熔化温度的温度，且保持不变。插件275包括凹穴277，以在模具260移近时补偿高度。模具260优选与一个切割模具构成为组合式的焊接/切割模具。
从上方施压的压模280具有140摄氏度的恒温，且因此高于所用组合材料的熔化温度。在焊接过程之后，塑料袋10会在端口30处与一个夹持器279嵌合并自模具260中取出。
附图标记一览表
10塑料袋
20塑料薄膜
22塑料薄膜的第一层
24塑料薄膜的第二层
30端口
40塑料元件
50端口焊接区
60端口焊接区中塑料元件的横截面
70端口焊接区的边缘
80第一棱边
90第二棱边
100塑料袋平面
110内端口横截面
120外端口横截面
130第一过渡区
140第二过渡区
150壁厚
160第一端口端部
170第二端口端部
180盖帽
190凹口
200卡突
210唇缘
220接合装置
230从后面卡住接合装置的元件
240理论断裂点
250把手状塑料部件
260模具
270基座
275插件
277凹穴
279夹持器
280压模

Claims (18)

1、一种具有一个或多个端口(30)的由塑料薄膜(20)制成的塑料袋(10)，其中至少一个端口(30)包括一个塑料元件(40)，该塑料元件
(i)被焊入塑料薄膜(20)的两层(22、24)之间，且在此情况下形成一个端口焊接区(50)，其中
(ii)该塑料元件(40)在端口焊接区(50)中基本上可被平压；
(iii)无载荷的塑料元件(40)的横截面(60)在朝向端口焊接区(50)的侧边缘(70)的方向上渐呈楔形；
(iv)端口焊接区(50)具有塑料元件(40)的一个或多个第一棱边(80)。
2、如权利要求1所述的塑料袋(10)，其特征在于，该端口焊接区(50)中的一个或多个第一棱边(80)基本上平行于端口焊接区(50)的侧边缘(70)。
3、如权利要求1或2所述的塑料袋(10)，其特征在于，第一棱边(80)成倒圆角。
4、如权利要求1或2所述的塑料袋(10)，其特征在于，横截面(60)在端口焊接区(50)的侧边缘(70)处形成第二棱边(90)。
5、如权利要求4所述的塑料袋(10)，其特征在于，横截面(60)的第二棱边(90)在端口焊接区(50)的侧边缘(70)处渐成尖角。
6、如权利要求4所述的塑料袋(10)，其特征在于，横截面(60)的第二棱边(90)在端口焊接区(50)的侧边缘(70)处倒圆角。
7、如权利要求4所述的塑料袋(10)，其特征在于，在端口焊接区(50)中压缩塑料元件(40)时，端口焊接区(50)侧边缘(70)区域中横截面(60)的第二棱边(90)的形状基本保持不变。
8、如权利要求1或2所述的塑料袋(10)，其特征在于，塑料元件(40)的横截面(60)在端口焊接区(50)中基本上为菱形。
9、如权利要求1或2所述的塑料袋(10)，其特征在于，端口焊接区(50)中塑料元件(40)的横截面(60)在塑料袋平面(100)中的宽度要大于垂直于塑料袋平面(100)的高度。
10、如权利要求1或2所述的塑料袋(10)，其特征在于，将端口(30)设计成是可夹紧的。
11、如权利要求10所述的塑料袋(10)，其特征在于，可在一个端口区中夹紧端口(30)，该端口区是通过使塑料元件(40)在端口焊接区(50)中可压缩的区域从塑料袋(10)中突出而形成的。
12、如权利要求1或2所述的塑料袋(10)，其特征在于，端口(30)具有一个内端口横截面(110)，该内端口横截面(110)在一个第一过渡区(130)中从端口焊接区(50)中的形状转变成圆形。
13、如权利要求1或2所述的塑料袋(10)，其特征在于，端口(30)具有一个外端口横截面(120)，该外端口横截面(120)在一个第二过渡区(140)中从端口焊接区(50)中的形状转变成圆形。
14、如权利要求1或2所述的塑料袋(10)，其特征在于，端口(30)具有一个外端口横截面(120)，其中，横截面(60)的面积自端口焊接区(50)向第二端口端部(170)增大。
15、如权利要求1或2所述的塑料袋(10)，其特征在于，塑料元件的壁厚(150)自端口焊接区(50)处的第一端口端部(160)向第二端口端部(170)增大。
16、如权利要求1或2所述的塑料袋(10)，其特征在于，形状稳定性自端口焊接区(50)中可压缩的第一端口端部(160)向第二端口端部(170)增强。
17、如权利要求1或2所述的塑料袋(10)，其特征在于，用一种薄膜封合一个或多个端口。
18、如权利要求1或2所述的塑料袋(10)，其特征在于，端口(30)可用塑料元件(40)上的一个盖帽(180)封合。
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CN112770894A (zh) * 2018-09-25 2021-05-07 费森尤斯卡比德国有限公司 用于被设计为袋的医疗包装的用于脉冲焊接的轮廓形成焊接工具和轮廓成形脉冲焊接方法
CN112770894B (zh) * 2018-09-25 2023-06-13 费森尤斯卡比德国有限公司 用于被设计为袋的医疗包装的用于脉冲焊接的轮廓形成焊接工具和轮廓成形脉冲焊接方法

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