JPH0436552B2 - - Google Patents

Info

Publication number
JPH0436552B2
JPH0436552B2 JP62083869A JP8386987A JPH0436552B2 JP H0436552 B2 JPH0436552 B2 JP H0436552B2 JP 62083869 A JP62083869 A JP 62083869A JP 8386987 A JP8386987 A JP 8386987A JP H0436552 B2 JPH0436552 B2 JP H0436552B2
Authority
JP
Japan
Prior art keywords
mold
bag
sheet pressing
medical
upper mold
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.)
Expired - Lifetime
Application number
JP62083869A
Other languages
English (en)
Other versions
JPS63249633A (ja
Inventor
Fujio Wada
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 JP62083869A priority Critical patent/JPS63249633A/ja
Publication of JPS63249633A publication Critical patent/JPS63249633A/ja
Publication of JPH0436552B2 publication Critical patent/JPH0436552B2/ja
Granted 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
    • B29C66/01—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
    • 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
    • B29C66/20—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
    • B29C66/244—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 non-straight, e.g. forming non-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
    • B29C66/32—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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/348—Avoiding melting or weakening of the zone directly next to the joint area, e.g. by cooling
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • 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
    • 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
    • B29C66/81425—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 stepped, e.g. comprising a shoulder
    • 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
    • B29C66/81427—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 ridge, e.g. for making a weakening line; comprising a single tooth
    • 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
    • B29C66/818—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • 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
    • 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
    • B29C66/80—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
    • B29C66/812—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8122—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • 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)
  • Making Paper Articles (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Description

【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、血液バツグ、薬液バツグ、その他の
医療用バツグの製造金型及び医療用バツグの製造
方法に関する。
［従来の技術］ 第５図は医療用バツグの一例を示す概略図で、
医療用バツグ１７は二枚のシートを重ね合わせて
袋状に形成した本体１８の上端部に、採血針１９
を接続した採血チユーブ２３、他のバツグとの連
結チユーブ２２を接続し、内部に連通ピース２７
を装填した連結チユーブ２６、プロテクター２４
で覆われた輸血口２５が取付けられている。２８
は筒体で、２９は本体１８の融着シール部であ
る。
これらの医療用バツグ１７は二枚の合成樹脂性
シートを上下の金型間において、金型により押圧
し熱溶着して袋状に形成するものであるが、金型
の内面エツジの形状は直角状（第６図）あるいは
二段直角状（第７図）に形成されたものが使用さ
れている。
［発明が解決しようとする問題点］ 内面エツジ３６が直角状の金型３０を用いて医
療用バツグ１７を製造する場合は、シート３２
ａ，３２ｂを押圧した箇所に力が集中するために
加熱時に変形することと、内面エツジ３６の先端
が鋭利なため押圧されなかつたシート３２ａ，３
２ｂの内面及び／又は外面に筋状の肉薄部やクラ
ツク３３が生じやすかつた。
他方内面エツジ３７が二段直角状の金型３１を
用いて医療用バツグ１７を製造する場合は、シー
ト３４ａ，３４ｂを押圧するときの力は分散され
るが医療用バツグ１７の本体１８内面に樹脂が二
段に突出したり内面にクラツク３５が生じやすく
なつていた。
これらのクラツク３３，３５は医療用バツグ１
７の強度を著しく低下させる原因となるので好ま
しくない。
例えば医療用バツグの内部に血液保存液、輸
液、生理食塩水等の液体を封入して運搬する際
に、これらの液体が漏出する原因となつたり、ま
た血液を採取しても遠心分離処理する際、遠心力
に耐えきれず、破裂する原因になる。
また第８図の医療用バツグ４１は、薄肉のチユ
ーブを押し出して熱溶着して袋状に形成したもの
であるが、第９図（第８図の−断面図）に示
すようにチユーブ４２の材質が可撓性合成樹脂の
ために偏平状に押し潰してもその弾性回復力のた
め再び元のチユーブ形状に戻ろうとする傾向があ
るので、前記の方法で熱溶着しようとすると第８
図に示すように袋状本体４３の四隅Ａ，Ｂ，Ｃ，
Ｄ付近の熱溶着が不十分となり、この部分から液
体がリークしやすいという欠点があつた（４４，
４５は溶着部、４６は口部である。）。
そこで、本発明者は以上の課題を解決するめに
鋭意検討を重ねた結果次の発明に到達した。
［問題点を解決するための手段］ 本発明は、第１の発明として、 上金型１ａと下金型１ｂとから構成され、 上金型１ａには医療用バツグの形状に対応する
型２と医療用バツグの袋状本体に対応する溝３が
形成され、 前記型２にはシート押圧部４が形成され、該シ
ート押圧部４に内面エツジ６が形成され、 前記シート押圧部４の内側に非導電部５が形成
され、該非導電部５に内面エツジ７が形成され、 前記内面エツジ６と内面エツジ７の間に空間１
５が形成され、 前記非導電部５の最下端レベル１０は、シート
押圧部４の最下端レベル１１よりも高く形成さ
れ、 前記下金型１ｂの表面にはシート押圧部１４が
形成された、医療用バツグの製造金型１を提供す
るものである。
第２の発明として、 次の工程よりなる医療用バツグの製造方法を提
供するものである。
シート１２ａ，１２ｂ（または薄肉に形成し
たチユーブ）を上金型１ａと下金型１ｂの間に
配置して、これらを上下より押圧する工程、 シート１２ａ，１２ｂの構成材料を、シート
押圧部４付近で溶融し、上金型１ａと下金型１
ｂで押圧しながら前記上金型１ａの内面エツジ
６と７との間に形成された空間１５内に充填す
る工程、 ［作用］ 上金型１ａのシート押圧部４により押圧された
シート１２ａ，１２ｂの構成材料は溶融して、内
面エツジ６，７の間に形成された空間１５方向に
移動するが非導電５により移動を妨げられて空間
１５内に充填される。
［実施例］ 第１図は本発明の医療用バツグの製造金型１
（以下金型１）を構成する上金型１ａを示す概略
図で、第２図は第１図の−断面の拡大図であ
る。
上金型１ａは、鉄、アルミ合金、黄銅等からな
り（下金型１ｂも同じ）、医療用バツグ１７の形
状に対応する型２と医療用バツグ１７の袋状本体
１８に対応する溝３が形成されている。
前記型２にはシート押圧部４が形成され、該シ
ート押圧部４の内側には、テフロン、ベークライ
ト、セラミツク等からなる非導電部５が前記型２
に沿つて装着されている。
第２図に示すように、前記シート押圧部４の内
面エツジ６と非導電部５の内面エツジ７は斜面に
形成されるとともに該斜面の表面は凹凸に形成さ
れている。また前記非導電部５の最下端レベル１
０は、シート押圧部４の最下端レベル１１よりも
若干高い位置になるように配置されている。これ
により医療用バツグ１７の袋状本体１８を構成す
るシート１２ａ，１２ｂを金型１で押圧し融着し
た後に、袋状本体１８に膨らみをもたせることが
できる。
また下金型１ｂ（第３図参照）の表面にはシー
ト押圧部１４が形成されている。
第３図は本発明の金型１を用いて医療用バツグ
１７を製造する際の概略図を示す。
シート１２ａ，１２ｂ（または薄肉に形成した
チユーブ、図示せず）を前記上金型１ａと下金型
１ｂの間に配置して、これらを上下より押圧し熱
融着する。
第４図に示すようにシート１２ａ，１２ｂの構
成材料（溶融樹脂）は、シート押圧部４付近で溶
融し、押圧の程度が進行するにつれて内面エツジ
６，７との間に形成された空間１５内に移動す
る。
他方、非導電部５には熱が伝わらないので非導
電部５で押圧されたシート１２ａ，１２ｂの相当
箇所では溶融は起こらない。このため前記溶融樹
脂は空間１５内に充填されながら、非導電部５の
壁面で冷却されるので、空間１５を越えることな
く肉溜りとなつて隆起部１６が形成される。この
ようにして医療用バツグ１７の袋状本体１８の縁
部に隆起部１６が形成される。
またシート１２ａ，１２ｂのＡ部は、シート押
圧部４の下部で強く押圧されるので、袋状本体１
８の縁部の強度を向上させることができる。
本発明の上金型１ａの内面エツジ６，７の形状
は図示した斜面のものに限定されず、半円形の曲
面、矩形状の断面に形成することができる。
［発明の効果］ 以上説明したように本発明は、 医療用バツグ１７の袋状本体１８内面にバリ
が発生せず、残血、血液の擬固等が生じない。
袋状本体１８内面や外面にクラツクが発生し
ないので、機械的強度を維持できる。
袋状本体１８の縁部の強度を向上させること
ができる。
袋状本体１８の形状をフラツトに維持でき
る。
シート成形後の離型性が良い。
【図面の簡単な説明】
第１図は本発明の上金型の概略図、第２図は第
１図の−断面の拡大図、第３図は本発明の医
療用バツグの製造方法を示す概略図、第４図は本
発明の金型を使用して製造した医療用バツグの一
部拡大断面図、第５図及び第８図は従来の医療用
バツグの概略図、第６図および第７図は従来の医
療用バツグの製造方法を示す概略図、第９図は第
８図の−断面図を示す。 図中、１は金型、１ａは上金型、１ｂは下金
型、２は型、３は溝部、４及び１４はシート押圧
部、５は非導電部、６及び７は内面エツジ、１０
及び１１は最下端レベル、１２ａおよび１２ｂは
シート、１５は空間、１６は隆起部である。

Claims (1)

  1. 【特許請求の範囲】 １ 上金型１ａと下金型１ｂとから構成され、 上金型１ａには医療用バツグの形状に対応する
    型２と医療用バツグの袋状本体に対応する溝３が
    形成され、 前記型２にはシート押圧部４が形成され、該シ
    ート押圧部４に内面エツジ６が形成され、 前記シート押圧部４の内側に非導電部５が形成
    され、該非導電部５に内面エツジ７が形成され、 前記内面エツジ６と内面エツジ７の間に空間１
    ５が形成され、 前記非導電部５の最下端レベル１０は、シート
    押圧部４の最下端レベル１１よりも高く形成さ
    れ、 前記下金型１ｂの表面にはシート押圧部１４が
    形成された、ことを特徴とする医療用バツグの製
    造金型１。 ２ 次の各工程よりなることを特徴とする医療用
    バツグの製造方法。 シート１２ａ，１２ｂ（または薄肉に形成し
    たチユーブ）を上金型１ａと下金型１ｂの間に
    配置して、これらを上下より押圧する工程、 シート１２ａ，１２ｂの構成材料を、シート
    押圧部４付近で溶融し、上金型１ａと下金型１
    ｂで押圧しながら前記上金型１ａの内面エツジ
    ６と７との間に形成された空間１５内に充填す
    る工程。
JP62083869A 1987-04-07 1987-04-07 医療用バッグの製造金型および医療用バッグの製造方法 Granted JPS63249633A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62083869A JPS63249633A (ja) 1987-04-07 1987-04-07 医療用バッグの製造金型および医療用バッグの製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62083869A JPS63249633A (ja) 1987-04-07 1987-04-07 医療用バッグの製造金型および医療用バッグの製造方法

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP3103132A Division JP2800904B2 (ja) 1991-04-08 1991-04-08 医療用バッグ

Publications (2)

Publication Number Publication Date
JPS63249633A JPS63249633A (ja) 1988-10-17
JPH0436552B2 true JPH0436552B2 (ja) 1992-06-16

Family

ID=13814670

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62083869A Granted JPS63249633A (ja) 1987-04-07 1987-04-07 医療用バッグの製造金型および医療用バッグの製造方法

Country Status (1)

Country Link
JP (1) JPS63249633A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11498284B2 (en) 2018-09-25 2022-11-15 Fresenius Kabi Deutschland Gmbh Contour-forming welding tool for pulse welding and contour-forming pulse welding method for a medical pack formed as a bag

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4593906B2 (ja) * 2003-12-04 2010-12-08 テルモ株式会社 医療用容器用ヒートシール用金型および医療用容器の製造方法
JP6710084B2 (ja) * 2016-03-30 2020-06-17 テルモ株式会社 液体バッグおよび液体バッグの製造方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4721175U (ja) * 1971-03-10 1972-11-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4721175U (ja) * 1971-03-10 1972-11-09

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11498284B2 (en) 2018-09-25 2022-11-15 Fresenius Kabi Deutschland Gmbh Contour-forming welding tool for pulse welding and contour-forming pulse welding method for a medical pack formed as a bag

Also Published As

Publication number Publication date
JPS63249633A (ja) 1988-10-17

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