JPS63290569A - Preparation of medical bag - Google Patents

Preparation of medical bag

Info

Publication number
JPS63290569A
JPS63290569A JP62125034A JP12503487A JPS63290569A JP S63290569 A JPS63290569 A JP S63290569A JP 62125034 A JP62125034 A JP 62125034A JP 12503487 A JP12503487 A JP 12503487A JP S63290569 A JPS63290569 A JP S63290569A
Authority
JP
Japan
Prior art keywords
tube
synthetic resin
tubes
resin sheets
welded
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
JP62125034A
Other languages
Japanese (ja)
Other versions
JPH0638828B2 (en
Inventor
Yuriko Iwasaki
岩崎　百合子
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.)
SB Kawasumi Laboratories Inc
Original Assignee
Kawasumi Laboratories Inc
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 Kawasumi Laboratories Inc filed Critical Kawasumi Laboratories Inc
Priority to JP62125034A priority Critical patent/JPH0638828B2/en
Publication of JPS63290569A publication Critical patent/JPS63290569A/en
Publication of JPH0638828B2 publication Critical patent/JPH0638828B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B29C66/70—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
    • B29C66/712—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 the composition of one of the parts to be joined being different from the composition 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
    • 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
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • 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
    • B29C66/50—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
    • B29C66/50—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
    • B29C66/72—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
    • 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
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4895—Solvent bonding, i.e. the surfaces of the parts to be joined being treated with solvents, swelling or softening agents, without adhesives
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5007—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5057—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like positioned between the surfaces to be joined
    • 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
    • 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
    • B29C66/80—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
    • B29C66/81411—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • 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

Abstract

PURPOSE:To enhance the strength of a bonded part, by interposing a part of tubes composed of alternately different material qualities between two synthetic resin sheets to weld the same to said sheets and connecting a tube coated with a solvent to the tube not welded between the synthetic resin sheets. CONSTITUTION:Tubes 3-5 composed of alternately different material qualities are mounted to a core pin 2 and interposed between two synthetic resin sheets 1 and fitted to the groove parts 10, 11 of molds 6, 7 to be subjected to high frequency welding. That is, a part 3, 5 of the tubes 3-5 composed of alternately different material qualities are welded to two synthetic resin sheets 1 and the core pin 2 is pulled off from the tubes 3-5 to connect a tube 12 coated with a solvent to the tube 4 not welded between the synthetic resin sheets 1. That is, since the tubes composed of different material qualities and the sheets can be connected without using an expensive rubber part as a connection member, a manufacturing process can be shortened and the cost reduction of a medical bag can be achieved. Further, the strength of the connection part is enhanced.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、ブドウ糖、アミノ酸、リンゲル、生理食塩水
、血液保存液、血液等を収納し保存する医療用バッグの
製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing a medical bag for storing and preserving glucose, amino acids, Ringer's, physiological saline, blood preservation solution, blood, and the like.

（従来の技術） 現在、ブドウ糖、リンゲル、生理食塩水等の輸液を収納
する医療用バッグのシートの材質としてエチレン−酢酸
ビニル共重合体（以下ＥＶＡと略記する）が使用されて
いる。(Prior Art) Ethylene-vinyl acetate copolymer (hereinafter abbreviated as EVA) is currently used as a material for sheets of medical bags that house infusions such as glucose, Ringer's, and physiological saline.

通常ＥＶＡは、ポリ塩化ビニル樹脂（以下ＰｖＣと略記
する）と比較すると可どう性が劣り操作性が悪くチュー
ブとして使用することは困難である。Normally, EVA has inferior flexibility and poor operability compared to polyvinyl chloride resin (hereinafter abbreviated as PvC), making it difficult to use it as a tube.

そこで第３図に示すように、医療用バッグ２１の本体２
２を構成するシートはＥＶＡを使用し、他方、可とう性
の必要とされるチューブ２３．２４．２５．２６の部分
は可とう性を有するＰＶＣが使用されている。Therefore, as shown in FIG. 3, the main body 2 of the medical bag 21 is
The sheet constituting the tube 2 is made of EVA, while the parts of the tube 23, 24, 25, and 26 that require flexibility are made of flexible PVC.

（発明が解決しようとする問題点） しかしながら、ＰＶＣとＥＶＡの熱溶着による接続は困
難であり、本体２２とチューブ２３の接続部には、ゴム
等の接続部材２７を使用しているのが現状である。また
ＥＶＡとＰｖＣを特殊接着剤を使用して化学的に接続し
ようとする試みも実施されつつあるが、特殊接着剤が輸
液内に溶出した際に人体に与える影響が不明であるから
必ずしも好ましい方法ではない。(Problems to be Solved by the Invention) However, it is difficult to connect PVC and EVA by heat welding, and currently a connecting member 27 made of rubber or the like is used at the connecting part between the main body 22 and the tube 23. It is. Attempts are also being made to chemically connect EVA and PvC using a special adhesive, but this is not necessarily the preferred method as it is unclear what effect the special adhesive will have on the human body if it dissolves into an infusion. isn't it.

（問題点を解決するための手段） 以上の問題点を解決するために検討を重ねた結果、医療
用バッグの口部１３の部分を改良すれば良いことを突き
止めた。具体的には、交互の異なる材質からなるチュー
ブ３．４．５をコアピン２に装着して、これらを２枚の
合成樹脂シート１．ｌの間に介在させて上金型６と下金
型７の溝部ｔｏ、ｔｔ間に置いて高周波溶着して、交互
に異なる材質からなるチューブの一部３．５を２枚の合
成樹脂シート１．１間に溶着させた後、コアピン２をチ
ューブ３．４．５から抜いて、溶剤を塗布したチューブ
１２を合成樹脂間に溶着していないチューブ４に接続す
る医療用バッグの製造方法を提供するものである。(Means for Solving the Problems) As a result of repeated studies to solve the above problems, it was found that the opening 13 of the medical bag could be improved. Specifically, tubes 3.4.5 made of alternately different materials are attached to the core pin 2, and these are attached to two synthetic resin sheets 1.4.5. The parts 3.5 of the tubes made of different materials are alternately bonded to two synthetic resin sheets by high frequency welding between the grooves to and tt of the upper mold 6 and lower mold 7. 1. A method for manufacturing a medical bag in which the core pin 2 is removed from the tube 3.4.5 after being welded between the synthetic resin and the tube 12 coated with a solvent is connected to the tube 4 which is not welded between the synthetic resin. This is what we provide.

（作用） 溶剤を塗布したチューブの材質と合成樹脂シート間に溶
着していないチューブの材質とは同じなので、溶剤によ
り容易に接続することができる。(Function) Since the material of the tube coated with the solvent is the same as the material of the tube not welded between the synthetic resin sheets, connection can be easily made using the solvent.

（実施例） 第１図は、医療用バッグの口部１３を製造するところの
概略図を示す。(Example) FIG. 1 shows a schematic diagram of manufacturing a mouth part 13 of a medical bag.

図中、ｌ、ｌはＥＶＡからなる合成樹脂製シートで、２
はコアピンでお互いに異なった材質からなるチューブ３
．５　（ＥＶＡ）、４（ＰＶＣ）を嵌挿している。コア
ピン２は鉄、ステンレス、黄銅、ジュラルミン等の導電
性材料から作られている。In the figure, l and l are synthetic resin sheets made of EVA, and 2
are core pins and tubes 3 made of different materials.
．． 5 (EVA) and 4 (PVC) are inserted. The core pin 2 is made of a conductive material such as iron, stainless steel, brass, or duralumin.

６は上金型、７は下金型でシート抑圧部８．９は、フラ
ットに形成され、チューブ３．４，５を嵌挿したコアピ
ン２を挟持するための溝部１０．１１が形成されている
。6 is an upper mold, 7 is a lower mold, and a sheet suppressing part 8.9 is formed flat, and a groove part 10.11 for holding the core pin 2 into which the tubes 3.4 and 5 are inserted is formed. There is.

ＥＶＡのチューブ３、ＰＶＣのチューブ４、ＥＶＩのチ
ューブ５を順次コアピン２に嵌挿した後、２枚のＥＶＡ
からなる合成樹脂シートの間に介在させて、下金型７の
溝部１１に、チューブ３．４．５を置いて、該チューブ
３．４．５に対向する位置に溝部ｌＯを形成した上金型
６よりクランプして高周波を印加する。After inserting the EVA tube 3, PVC tube 4, and EVI tube 5 into the core pin 2 in sequence, insert the two EVA tubes.
A tube 3.4.5 is placed in the groove 11 of the lower mold 7, interposed between synthetic resin sheets made of Clamp from mold 6 and apply high frequency.

この時チユーブ３．４．５と本体シート１は熱により溶
着する。チューブ３．５とシート１．１は同じＥＶＡで
あるから溶着により接続できる。他方チューブ４はＰｖ
Ｃからなり、ＥＶＡからなるシー）１．１とは溶着でき
ないがシートｌ、１の両端に溶着されたＥＶＡチューブ
３．５により圧縮されなから溶着冷却が行なわれるので
、強固に挟持され、容易に離脱することはない。At this time, the tube 3.4.5 and the main body sheet 1 are welded together by heat. Since the tube 3.5 and the sheet 1.1 are made of the same EVA, they can be connected by welding. On the other hand, tube 4 is Pv
Although it cannot be welded to the sheet 1.1 made of EVA, it is not compressed by the EVA tube 3.5 welded to both ends of the sheet 1 and is cooled by welding, so it is firmly clamped and easily There will be no withdrawal.

そして第２図に示すようにＰｖＣからなる可とう性を有
するチューブ１２の先端にテトラヒドロフラン等の溶剤
を塗布して、第１図に示すように形成した医療用バッグ
の口部１３を構成するＰＶＣからなるチューブ４に装着
する。Then, as shown in FIG. 2, a solvent such as tetrahydrofuran is applied to the tip of a flexible tube 12 made of PVC to form the opening 13 of the medical bag as shown in FIG. It is attached to the tube 4 consisting of.

チューブ４とチューブ１２は、同じＰＶＣから構成され
ているので溶剤により容易に接続することができる。チ
ューブ１２は接続後もチューブ５により挟持されるので
強い接続強度を維持することができる。Since the tube 4 and the tube 12 are made of the same PVC, they can be easily connected using a solvent. Since the tube 12 is held between the tubes 5 even after the connection, strong connection strength can be maintained.

（発明の効果） 以上説明したように本発明では、 ■接続部材として高価なゴム部品を使用することなく異
種の材質からなるチューブとシートを接続できるので、
製造工程が短縮でき、医療用バッグのコストダウンが計
れる。(Effects of the Invention) As explained above, in the present invention, ■ tubes and sheets made of different materials can be connected without using expensive rubber parts as connection members;
The manufacturing process can be shortened and the cost of medical bags can be reduced.

■接続部の強度が向上し、外観的にもスマートである。■The strength of the connection part has been improved and the appearance is sleek.

等の優れた効果を有する発明である。This invention has excellent effects such as:

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

第１図は、本発明の医療用バッグの口部の製造方法を示
す概略図、第２図は本体に可とう性チューブを接続する
ところの断面図、第３図は従来の医療用バッグを示す該
略図。 図中、ｌは合成樹脂シート、２はコアピン、３．４．５
はチューブ、６は上金型、７は下金型、８．９はシート
抑圧部、１ｏ、１１は溝部、１２はチューブ、１３は口
部を示す。 特許出願人　　川澄化学工業株式会社 第１図 第２図 第３図Fig. 1 is a schematic diagram showing a method for manufacturing the opening of a medical bag according to the present invention, Fig. 2 is a sectional view showing how a flexible tube is connected to the main body, and Fig. 3 is a diagram showing a conventional medical bag. The schematic diagram shown. In the figure, l is a synthetic resin sheet, 2 is a core pin, 3.4.5
1 is a tube, 6 is an upper mold, 7 is a lower mold, 8.9 is a sheet suppressing portion, 1o and 11 are grooves, 12 is a tube, and 13 is a mouth portion. Patent applicant: Kawasumi Chemical Industry Co., Ltd. Figure 1 Figure 2 Figure 3

Claims (1)

【特許請求の範囲】 コアピンに、交互に異なる材質からなる チューブを装着し、これらを２枚の合成樹脂シートの間
に介在させて、金型の溝部に置いて高周波溶着して、交
互に異なる材質からなるチューブの一部を２枚の合成樹
脂シート間に溶着させた後、コアピンをチューブから抜
いて、溶剤を塗布したチューブを、合成樹脂シート間に
溶着していないチューブに接続することを特徴とする医
療用バッグの製造方 法。[Claims] Tubes made of different materials are attached to the core pin alternately, and these tubes are interposed between two synthetic resin sheets, placed in the groove of the mold, and high-frequency welded. After welding a part of the tube made of the material between two synthetic resin sheets, remove the core pin from the tube and connect the tube coated with solvent to the tube that is not welded between the synthetic resin sheets. Features: Manufacturing method for medical bags.
JP62125034A 1987-05-23 1987-05-23 Medical bag and manufacturing method thereof Expired - Fee Related JPH0638828B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62125034A JPH0638828B2 (en) 1987-05-23 1987-05-23 Medical bag and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62125034A JPH0638828B2 (en) 1987-05-23 1987-05-23 Medical bag and manufacturing method thereof

Publications (2)

Publication Number Publication Date
JPS63290569A true JPS63290569A (en) 1988-11-28
JPH0638828B2 JPH0638828B2 (en) 1994-05-25

Family

ID=14900208

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62125034A Expired - Fee Related JPH0638828B2 (en) 1987-05-23 1987-05-23 Medical bag and manufacturing method thereof

Country Status (1)

Country Link
JP (1) JPH0638828B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000029777A1 (en) * 1998-11-13 2000-05-25 Uponor Innovation Ab Apparatus and method for joining dissimilar materials

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000029777A1 (en) * 1998-11-13 2000-05-25 Uponor Innovation Ab Apparatus and method for joining dissimilar materials
GB2361666A (en) * 1998-11-13 2001-10-31 Uponor Innovation Ab Apparatus and method for joining dissimilar materials
GB2361666B (en) * 1998-11-13 2002-04-10 Uponor Innovation Ab Apparatus and method for joining dissimilar materials

Also Published As

Publication number Publication date
JPH0638828B2 (en) 1994-05-25

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