JPH0349762A - Production of bag for transfusion - Google Patents

Production of bag for transfusion

Info

Publication number
JPH0349762A
JPH0349762A JP1184320A JP18432089A JPH0349762A JP H0349762 A JPH0349762 A JP H0349762A JP 1184320 A JP1184320 A JP 1184320A JP 18432089 A JP18432089 A JP 18432089A JP H0349762 A JPH0349762 A JP H0349762A
Authority
JP
Japan
Prior art keywords
cylindrical body
opening
hollow cylindrical
hollow
hollow cylinder
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.)
Granted
Application number
JP1184320A
Other languages
Japanese (ja)
Other versions
JP2791387B2 (en
Inventor
Tsuneyuki Ishiwatari
石渡　恒之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Tanabe Pharma Corp
Original Assignee
Green Cross Corp Japan
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Green Cross Corp Japan filed Critical Green Cross Corp Japan
Priority to JP1184320A priority Critical patent/JP2791387B2/en
Publication of JPH0349762A publication Critical patent/JPH0349762A/en
Application granted granted Critical
Publication of JP2791387B2 publication Critical patent/JP2791387B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • 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
    • B29C66/05—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
    • 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
    • B29C66/2422—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 circular, oval or elliptical
    • B29C66/24221—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 circular, oval or elliptical being circular
    • 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
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/326—Shaping the burr, e.g. by the joining tool
    • 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
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/735—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the extensive physical properties of the parts to be joined
    • B29C66/7352—Thickness, e.g. very thin
    • B29C66/73521—Thickness, e.g. very thin of different thickness, i.e. the thickness of one of the parts to be joined being different from the thickness of the other part
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
    • B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
    • 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
    • B29C65/14—Joining 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
    • B29C65/1403—Joining 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 characterised by the type of electromagnetic or particle radiation
    • B29C65/1412—Infrared [IR] radiation
    • B29C65/1422—Far-infrared radiation [FIR]
    • 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
    • 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
    • B29C65/38—Impulse heating
    • 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
    • B29C66/63—Internally supporting the article during joining
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To more completely seal a hollow cylindrical body with the opening part of a bag by heating the hollow cylindrical body, pressing the hollow cylindrical body and opening part with a metallic mold and welding the outer layer part of the hollow cylindrical body with the opening part. CONSTITUTION:A cylindrical protruding part 3 is provided in a symmetric position to divide into two a cylindrical body on the outer peripheral face of a cylindrical hollow body 1 in a vertical axial direction. This cylindrical protruding part 3 is preheated by a farinfra-red heater and hot air heater, etc., to a degree so that the protruding part can be easily deformed and made weak. An opening part sheet 10 is abutted to the outer circumference of the protruding part 3 and hollow cylindrical body 1 in a softened state. Afterwards, they are put into a metallic mold 50 equipped with a prescribed mold and the hollow cylindrical body 1 and opening part are pressed. Then, by applying ultrasonic waves or heat to the metallic mold 50 while molding the protruding part 3, the outer layer part of the protruding part 3 and the hollow cylindrical body 1 is mutually welded with the sheet 10. Thus, the hollow cylindrical body 1 and the opening part 10 are completely adhered and sealed.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本児ＯＩ３は、預阪用へツクの新説な表厄力汰に関する
。[Detailed Description of the Invention] [Industrial Field of Application] This article OI3 relates to a new theory of Omoteyaku Rikita for Yokosaka use.

〔従来の技術・発明が解決しようとする課題〕第４図に
示すように輸液用バッグＢには、輸液取出口としての開
口部１０に栓をするために栓取付部である中空筒体（ポ
ート部）１１を開口部１゜に挿入し、開口部１０と筒体
１１を熱シール、高周波シールなどによって融着し、筒
体１１の上端面に注射針などを差し込むための栓９を取
付けたものがある。[Prior Art/Problems to be Solved by the Invention] As shown in FIG. 4, the infusion bag B includes a hollow cylindrical body (a plug attachment part) for plugging the opening 10 serving as the infusion outlet. Port part) 11 is inserted into the opening 1°, the opening 10 and the cylinder 11 are fused together by heat sealing, high frequency sealing, etc., and the stopper 9 for inserting a syringe needle etc. is attached to the upper end surface of the cylinder 11. There is something.

この種のバッグは、例えば第５図に示すように、熱可塑
性プラスチックシー）２０の開口部に空洞２３を有する
円柱状の中空筒体２１を融着したものでは、プラスナッ
クシート２０の合せ目２２の二分がシール不良を起こし
易い。すなわち、合せ目２２の二分に隙間（もしくはピ
ンホール）３０が生じ易い。隙間３０ができると、バッ
グ内の輸液が外に漏洩したり、または隙間３０から細菌
などの異物が輸液に混入し、輸液が汚染されたりするの
で甚だ好ましくない。This type of bag is, for example, as shown in FIG. 22 is more likely to cause seal failure. That is, a gap (or pinhole) 30 is likely to occur between the two halves of the seam 22. If a gap 30 is formed, it is extremely undesirable that the infusion in the bag may leak to the outside, or foreign matter such as bacteria may enter the infusion through the gap 30, contaminating the infusion.

これを解決するために、第６図に示す如く隙間３０を埋
めるよう筒体２１に突出部２５を設けたもの、第７図に
示す如く筒体２１とプラスチックシート２０のシール面
積を増加するよう筒体２１を楕円形状にしたもの、或い
は第８図に示す如く筒体２１を船形に形成し、その側面
部２７にプラスチックシートの開口部を溶着シールした
ものもあるが、いずれも却ってシール条件が悪くなり、
筒体とプラスチックシートを完全に密着シールすること
は困難であり、シール不良を起こして合せ目２２（第８
図では側縁２８）の箇所に隙間が生じることがある。従
って、これらは上策とは言い難い。In order to solve this problem, the cylinder body 21 is provided with a protrusion 25 to fill the gap 30 as shown in FIG. 6, and the sealing area between the cylinder body 21 and the plastic sheet 20 is increased as shown in FIG. There is also one in which the cylinder 21 is shaped like an ellipse, or one in which the cylinder 21 is formed into a boat shape as shown in FIG. becomes worse,
It is difficult to completely seal the cylindrical body and the plastic sheet, resulting in seal failure and seam 22 (8th
In the figure, a gap may occur at the side edge 28). Therefore, these can hardly be called good measures.

従って本発明の目的は、中空筒体とバッグ開口部とのシ
ールの完全性を高めることができる輸液用バッグの製造
方法を提供することにある。Therefore, an object of the present invention is to provide a method for manufacturing an infusion bag that can improve the integrity of the seal between the hollow cylinder and the bag opening.

〔課題を解決するための手段］ 前記目的は、■中空筒体の外層部が容易に変形できる程
度にまで該中空筒体を加熱し、中空筒体を本体の開口部
で包囲し、中空筒体と開口部とを金型で押圧すると共に
、中空筒体の外層部と開口部とを溶着する工程を有する
製造方法、並びに■中空筒体の外周面において中空筒体
を垂直軸方向に二分する対称位置に突出部を設け、突出
部が容易に変形できる程度にまで該突出部を加熱し、突
出部を含む中空筒体を本体の開口部で包囲し、突出部を
含む中空筒体と開口部とを金型で押圧すると共に、突出
部及び中空筒体の外層部と開口部とを溶着する工程を有
する製造方法により達成される。[Means for Solving the Problems] The purpose is to heat the hollow cylinder to such an extent that the outer layer of the hollow cylinder can be easily deformed, surround the hollow cylinder with the opening of the main body, and A manufacturing method that includes the steps of pressing the body and the opening with a mold and welding the outer layer of the hollow cylindrical body and the opening; The protrusions are provided at symmetrical positions, the protrusions are heated to an extent that the protrusions can be easily deformed, the hollow cylindrical body including the protrusions is surrounded by the opening of the main body, and the hollow cylindrical body including the protrusions is This is achieved by a manufacturing method that includes the steps of pressing the opening with a mold and welding the opening to the protrusion and the outer layer of the hollow cylindrical body.

すなわち、本発明の製造方法は、特に輸液用バッグの開
口部のシール工程において中空筒体と開口部とを密着シ
ールする前に、上記■の方法では筒体の外層部、■の方
法では筒体に設けた突出部を容易に変形され得る程度に
まで予備加熱し、外層部または突出部を柔軟にしてから
、中空筒体と開口部とを金型で押圧すると共に、両者を
例えば熱、超音波などにより発熱させて相互に溶着する
ことを特徴とする。That is, in the manufacturing method of the present invention, in the process of sealing the opening of an infusion bag, before tightly sealing the hollow cylinder and the opening, the outer layer of the cylinder is sealed in the method After preheating the protrusion provided on the body to the extent that it can be easily deformed to make the outer layer or the protrusion flexible, the hollow cylinder and the opening are pressed together with a mold, and both are heated, for example. They are characterized by being welded together by generating heat using ultrasonic waves or the like.

本発明の製造方法において、輸液用バッグの本体自体の
製造法には特に制限はなく、常套手段で十分であり、例
えば熱板シール、インパルスシールなどにより中空筒体
を取付ける開口部を確保できる形状（チューブ状、袋状
など）に形成する。In the manufacturing method of the present invention, there is no particular restriction on the method of manufacturing the main body of the infusion bag itself, and conventional methods are sufficient, such as a shape that can secure an opening for attaching the hollow cylindrical body by hot plate sealing, impulse sealing, etc. (form into a tube shape, bag shape, etc.).

なお、上記■の方法においては、予備加熱時に中空筒体
が変形する危険性がある場合には、中空筒体内に筒体の
形状を保持するだめの補強部材を挿入しておくことが好
ましい。In the method (2) above, if there is a risk that the hollow cylinder may deform during preheating, it is preferable to insert a reinforcing member into the hollow cylinder to maintain the shape of the cylinder.

〔実施例〕〔Example〕

以下、本発明の輸液用バッグの製造方法を実施例に基づ
いて説明する。Hereinafter, the method for manufacturing an infusion bag of the present invention will be described based on Examples.

第１図は本発明の製造方法によって作製した輸液用バッ
グの開口部を示し、特にその特徴である開口部のシール
工程によって密着シールした中空筒体１と本体の開口部
１０とを示す０図の実施例では、中空筒体１に突出部３
を設けた前記■の方法によるもので、開口部シート１０
と突出部３との合せ目５は隙間が生じない程堅固に密着
シールされている。なお、中空筒体１には栓９が取付け
られている。Fig. 1 shows the opening of the infusion bag manufactured by the manufacturing method of the present invention, and in particular, Fig. 0 shows the hollow cylindrical body 1 and the opening 10 of the main body, which are closely sealed by the opening sealing process, which is a characteristic of the bag. In the embodiment, a protrusion 3 is provided on the hollow cylinder 1.
This method is based on the method (2) above, in which the opening sheet 10 is
The seam 5 between the protrusion 3 and the protrusion 3 is tightly sealed so that no gap is formed. Note that a plug 9 is attached to the hollow cylindrical body 1.

次に、上記バッグＢの製造方法の一例をシール工程を中
心にして第２図（ａ）〜（Ｃ）につき述べる。Next, an example of the method for manufacturing the bag B will be described with reference to FIGS. 2(a) to 2(C), focusing on the sealing process.

まず、袋状に形成された本体を上側の既知方法で作製す
る０次に、円柱状中空筒体１の外周面において該筒体を
垂直軸方向に二分する対称位置に設けた円柱状突出部３
を、後の金型成形時に容易に変形され得る程度にまで遠
赤外線ヒータ、熱風ヒータ、オーブンなどによって予備
加熱し、突出部３を軟弱にする〔第２図（ａ）参照〕、
そして、柔軟状態の突出部３及び中空筒体１の外周に開
口部シート１０を当接する〔第２図（ｂ）参照〕、その
後、所定の成形型を有する金型５０で中空筒体１と開口
部とを押圧すると共に突出部３を（Ｃ）に示す如き形状
に成形しながら、金型５０に超音波もしくは熱を加える
ことにより成形突出部３及び中空筒体１の外層部とシー
ト１０とを相互に溶着する〔第２［Ｊ（Ｃ）参照〕、レ
シート０に中空筒体１を取付けた後、筒体１の中空部か
ら所定量の輸液をバッグＢ内に注入し、最後に中空筒体
ｌの上端面に栓９の下端面を熱融着し、筒体１を閉塞す
ることによリ、バングＢが製造される。First, a bag-shaped main body is manufactured using the above known method. Next, a cylindrical protrusion is provided at a symmetrical position on the outer peripheral surface of the cylindrical hollow cylinder 1 to bisect the cylinder in the vertical axis direction. 3
is preheated by a far-infrared heater, a hot air heater, an oven, etc. to the extent that it can be easily deformed during subsequent mold molding to soften the protrusion 3 [see FIG. 2(a)].
Then, the opening sheet 10 is brought into contact with the protrusion 3 and the outer periphery of the hollow cylinder 1 in a flexible state [see FIG. By applying ultrasonic waves or heat to the mold 50 while pressing the opening and molding the protrusion 3 into the shape shown in (C), the molded protrusion 3 and the outer layer of the hollow cylinder 1 and the sheet 10 are [see second [J(C)]], after attaching the hollow cylinder 1 to the receipt 0, inject a predetermined amount of infusion into the bag B from the hollow part of the cylinder 1, and finally The bang B is manufactured by heat-sealing the lower end surface of the plug 9 to the upper end surface of the hollow cylindrical body 1 and closing the cylindrical body 1.

このように本発明の製造方法におけるシール工程では、
共に柔軟状態である突出部３とシート１０とをシールす
るので筒体１とシート１０との合せ目に無理な力が加わ
らず、そのため合せ目におけるシートの厚さも薄くなら
ず、結果として合せ目に隙間やピンホールが生じ難（な
る。In this way, in the sealing step in the manufacturing method of the present invention,
Since the protrusion 3 and the sheet 10, both of which are in a flexible state, are sealed, no unreasonable force is applied to the joint between the cylinder 1 and the sheet 10, and the thickness of the sheet at the seam does not become thinner. Gaps and pinholes are difficult to form.

なお、突出部３を金型５０で成形した時の形状は図示し
たちの以外であってもよく、例えば第３図（ａ）に示す
ようなくさび形横断面３′、または（ｂ）の如きひし形
横断面３′に成形しても構わず、その成形型を有する金
型を使用すればよい。Note that the shape of the protrusion 3 formed by the mold 50 may be other than that shown in the figure, for example, a wedge-shaped cross section 3' as shown in FIG. It does not matter if it is molded into a diamond-shaped cross section 3', and a mold having such a mold may be used.

上記実施例では、中空筒体に突出部を設けである場合の
製造方法■の説明であるが、突出部を有しない場合の製
造方法■につ６ては、前記■の方法とほぼ同様に行えば
よいが、相違点のみを次に述べる。In the above example, the manufacturing method (6) is explained in which the hollow cylinder is provided with a protrusion, but the manufacturing method (6) in which the hollow cylinder does not have a protrusion is almost the same as the method (2) above. You can do it, but only the differences are described below.

すなわち■の製造方法では、予備加熱するのが中空筒体
の外層部であると共に、予備加熱時に必要に応じて中空
筒体が変形しないように筒体内に補強部材を挿入してお
き、また金型での押圧時に筒体を成形せず、筒体とシー
トとを密着シールするだけであることが異なる。In other words, in the manufacturing method (2), the outer layer of the hollow cylinder is preheated, a reinforcing member is inserted into the cylinder as necessary to prevent the hollow cylinder from deforming during preheating, and the outer layer of the hollow cylinder is preheated. The difference is that the cylindrical body is not formed during pressing with a mold, but only the cylindrical body and the sheet are tightly sealed.

〔発明の効果〕〔Effect of the invention〕

以上説明した如（、本発明の輸液用バッグの製造方法に
よれば、中空筒体の外層部または中空筒体に設けた突出
部を予備加熱してから、金型によって中空筒体と開口部
とを押圧・加熱して溶着するので、中空筒体と開口部と
を完全に密着シールすることができ、中空筒体と開口部
との合せ目に隙間やピンホールが発生する可能性が皆無
になる。As explained above (according to the method for manufacturing an infusion bag of the present invention), after preheating the outer layer of the hollow cylinder or the protrusion provided on the hollow cylinder, the hollow cylinder and the opening are formed using a mold. Since the hollow cylinder and the opening are welded by pressing and heating, it is possible to completely seal the hollow cylinder and the opening, and there is no possibility of creating gaps or pinholes at the joint between the hollow cylinder and the opening. become.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の製造方法によって作製した輸液用バッ
グの開口部を示す斜視図、第２図（ａ）〜（Ｃ）は本発
明の製造方法におけるシール工程の一例を示す工程図、
第３図（ａ）、［有］）は中空筒体の突出部の成形変更
例を示す一部省略横断面図、第４図は一般の輸液用バッ
グの正面図、第５図〜第７図はそれぞれ従来のバッグに
おける開口部の横断面図、第８図は従来のバッグの開口
部に取付ける中空筒体の斜視図である。 Ｂ　　　：輸液用バッグ １　　　：中空筒体 ３　　　：突出部 ５　　　　：中空筒体とシートとの合せ目１０　　　：
バッグの開口部 ５０　　　：金型 第１図 （ａ） 第２図 （ｂ） （ａ） （Ｃ） 第３図 （′Ｏ） 第５図 第６図 第７図 第８図FIG. 1 is a perspective view showing the opening of an infusion bag manufactured by the manufacturing method of the present invention, and FIGS. 2(a) to (C) are process diagrams showing an example of the sealing process in the manufacturing method of the present invention.
FIG. 3(a), [with]) is a partially omitted cross-sectional view showing an example of a modified molding of the protruding portion of the hollow cylindrical body, FIG. 4 is a front view of a general infusion bag, and FIGS. 5 to 7 Each figure is a cross-sectional view of an opening in a conventional bag, and FIG. 8 is a perspective view of a hollow cylinder attached to the opening of a conventional bag. B: Infusion bag 1: Hollow cylindrical body 3: Projection 5: Seam 10 between hollow cylindrical body and sheet:
Bag opening 50: Mold Fig. 1 (a) Fig. 2 (b) (a) (C) Fig. 3 ('O) Fig. 5 Fig. 6 Fig. 7 Fig. 8

Claims (2)

【特許請求の範囲】[Claims] （１）本体の開口部に取付ける中空筒体の外層部が容易
に変形できる程度にまで該中空筒体を加熱し、中空筒体
を本体の開口部で包囲し、中空筒体と開口部とを金型で
押圧すると共に、中空筒体の外層部と開口部とを溶着す
る工程を有することを特徴とする輸液用バッグの製造方
法。(1) Heat the hollow cylinder to be attached to the opening of the main body to the extent that the outer layer of the hollow cylinder can be easily deformed, surround the hollow cylinder with the opening of the main body, and connect the hollow cylinder to the opening. 1. A method for manufacturing an infusion bag, comprising the steps of pressing with a mold and welding an outer layer of a hollow cylindrical body to an opening. （２）本体の開口部に取付ける中空筒体の外周面におい
て中空筒体を垂直軸方向に二分する対称位置に突出部を
設け、突出部が容易に変形できる程度にまで該突出部を
加熱し、突出部を含む中空筒体を本体の開口部で包囲し
、突出部を含む中空筒体と開口部とを金型で押圧すると
共に、突出部及び中空筒体の外層部と開口部とを溶着す
る工程を有することを特徴とする輸液用バッグの製造方
法。(2) Protrusions are provided on the outer peripheral surface of the hollow cylinder to be attached to the opening of the main body at symmetrical positions that bisect the hollow cylinder in the vertical axis direction, and the protrusions are heated to the extent that they can be easily deformed. , the hollow cylindrical body including the protrusion is surrounded by the opening of the main body, the hollow cylindrical body including the protrusion and the opening are pressed with a mold, and the protrusion and the outer layer of the hollow cylindrical body and the opening are A method for manufacturing an infusion bag, comprising a step of welding.
JP1184320A 1989-07-17 1989-07-17 Infusion bag and manufacturing method thereof Expired - Lifetime JP2791387B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1184320A JP2791387B2 (en) 1989-07-17 1989-07-17 Infusion bag and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1184320A JP2791387B2 (en) 1989-07-17 1989-07-17 Infusion bag and manufacturing method thereof

Publications (2)

Publication Number Publication Date
JPH0349762A true JPH0349762A (en) 1991-03-04
JP2791387B2 JP2791387B2 (en) 1998-08-27

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ID=16151271

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Country Link
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06182906A (en) * 1992-12-15 1994-07-05 Honshu Paper Co Ltd Bonding method for saw teeth made of vulcanized fiber at high speed
JPH07323478A (en) * 1994-05-31 1995-12-12 Sumitomo Bakelite Co Ltd Method and apparatus for welding pour plug
EP0919359A3 (en) * 1997-11-27 1999-10-13 Paul Kiefel Gmbh Process for welding a connecting element
WO2005095089A1 (en) * 2004-03-30 2005-10-13 Showa Denko Plastic Products Co., Ltd. Method and apparatus for producing bag with mouth member
EP2263860A1 (en) * 2009-06-17 2010-12-22 3L-Ludvigsen A/S Ultrasonic sealing jaw and method for ultrasonic sealing
JP2012120765A (en) * 2010-12-10 2012-06-28 Terumo Corp Method for manufacturing medical bag, and medical bag
CN107787272A (en) * 2015-10-30 2018-03-09 陶氏环球技术有限责任公司 Flexible apparatus is sealed to the method for flexible membrane

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI235111B (en) 2002-10-29 2005-07-01 Showa Denko Plastic Prod Co Bag-making method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61194638U (en) * 1985-05-27 1986-12-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61194638U (en) * 1985-05-27 1986-12-04

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06182906A (en) * 1992-12-15 1994-07-05 Honshu Paper Co Ltd Bonding method for saw teeth made of vulcanized fiber at high speed
JPH07323478A (en) * 1994-05-31 1995-12-12 Sumitomo Bakelite Co Ltd Method and apparatus for welding pour plug
EP0919359A3 (en) * 1997-11-27 1999-10-13 Paul Kiefel Gmbh Process for welding a connecting element
WO2005095089A1 (en) * 2004-03-30 2005-10-13 Showa Denko Plastic Products Co., Ltd. Method and apparatus for producing bag with mouth member
US7736288B2 (en) 2004-03-30 2010-06-15 Hosokawa Yoko Co., Ltd. Method and apparatus for producing bag with mouth member
EP2263860A1 (en) * 2009-06-17 2010-12-22 3L-Ludvigsen A/S Ultrasonic sealing jaw and method for ultrasonic sealing
WO2010145667A1 (en) * 2009-06-17 2010-12-23 3L Ludvigsen A/S Ultrasonic sealing jaw and method for ultrasonic sealing
US8882946B2 (en) 2009-06-17 2014-11-11 3L Ludvigsen A/S Ultrasonic sealing jaw and method for ultrasonic sealing
JP2012120765A (en) * 2010-12-10 2012-06-28 Terumo Corp Method for manufacturing medical bag, and medical bag
CN107787272A (en) * 2015-10-30 2018-03-09 陶氏环球技术有限责任公司 Flexible apparatus is sealed to the method for flexible membrane
CN107787272B (en) * 2015-10-30 2020-09-01 陶氏环球技术有限责任公司 Method of sealing a flexible device to a flexible membrane

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