JPH0438954A - Manufacture of outlet/inlet protector for blood bag - Google Patents
Manufacture of outlet/inlet protector for blood bagInfo
- Publication number
- JPH0438954A JPH0438954A JP2146699A JP14669990A JPH0438954A JP H0438954 A JPH0438954 A JP H0438954A JP 2146699 A JP2146699 A JP 2146699A JP 14669990 A JP14669990 A JP 14669990A JP H0438954 A JPH0438954 A JP H0438954A
- Authority
- JP
- Japan
- Prior art keywords
- protector
- welded
- tube
- bag
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001012 protector Effects 0.000 title claims abstract description 30
- 239000008280 blood Substances 0.000 title claims abstract description 17
- 210000004369 blood Anatomy 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000011810 insulating material Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 6
- 229920005989 resin Polymers 0.000 abstract description 6
- 239000011347 resin Substances 0.000 abstract description 6
- 238000003466 welding Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- PYVHTIWHNXTVPF-UHFFFAOYSA-N F.F.F.F.C=C Chemical compound F.F.F.F.C=C PYVHTIWHNXTVPF-UHFFFAOYSA-N 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 abstract 1
- -1 polyethylene Polymers 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 2
- MIZLGWKEZAPEFJ-UHFFFAOYSA-N 1,1,2-trifluoroethene Chemical group FC=C(F)F MIZLGWKEZAPEFJ-UHFFFAOYSA-N 0.000 description 1
- QLZJUIZVJLSNDD-UHFFFAOYSA-N 2-(2-methylidenebutanoyloxy)ethyl 2-methylidenebutanoate Chemical compound CCC(=C)C(=O)OCCOC(=O)C(=C)CC QLZJUIZVJLSNDD-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005042 ethylene-ethyl acrylate Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
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
Landscapes
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
本発明は、血液バッグに取りつけられる血液出入口用チ
ューブを密封保護するプロテクターの製造方法に関する
。The present invention relates to a method for manufacturing a protector that seals and protects a blood inlet/outlet tube attached to a blood bag.
血液バッグは血液を無菌状態で採取・保存する際、また
輸血などの際に用いられる軟質合成樹脂製の容器である
。この血液バッグには第３図に示されるように、バッグ
エ０に血液出入口用のチューブ１１が取りつけられてお
り、チューブ１１は無菌状態を保つための塩化ビニルな
どの軟質合成樹脂製のプロテクター１２で被包され、溶
着などの手段で密封されるようになっている。なお同図
では右側のプロテクター１２が使用前の密封状態を、左
側は使用するためにプロテクター１２を開封線で破りチ
ューブ１１を露出させた状態が示されている。、（して
、ハツチングを施した部分が密封するためしこ溶着した
部分１３である。
さて、従来のプロテクター１２はチューブ１１の上下を
２枚の軟質合成樹脂製のシートで挟んで熱溶着し２て製
造されていた。A blood bag is a container made of soft synthetic resin that is used when collecting and storing blood in a sterile state, as well as during blood transfusions. As shown in Fig. 3, this blood bag has a tube 11 for blood inlet and outlet attached to the bag 0, and the tube 11 is covered with a protector 12 made of soft synthetic resin such as vinyl chloride to maintain a sterile condition. It is encapsulated and sealed by means such as welding. In this figure, the protector 12 on the right side is shown in a sealed state before use, and the protector 12 on the left side is shown in a state in which the protector 12 is torn at the opening line to expose the tube 11 for use. , (The hatched part is the part 13 that is welded for sealing.) In the conventional protector 12, the upper and lower parts of the tube 11 are sandwiched between two soft synthetic resin sheets and then heat welded. 2 were manufactured.
【発明が解決しようとする課題］
ところが、従来の製造方法では、第４図及び第５図に示
されるように、チューブ１］が収容される袋部分１４と
その周囲の溶着部分１３との間に破れ１５の発生するこ
とが多かった。このような破れが発生する原因としては
、シートの加圧溶着によって溶着箇所と非溶着箇所の境
界付近では非溶着シートが軟化し１円筒計上のチューブ
１１のふくらみによってシートが耐えきれな（なる等の
事情が考えられる。
そこで本発明は畝上の事情に鑑み１袋部分に破れが生じ
ないプロテクターの製造方法を提供することを目的とす
る。
【課題を解決するための手段］
本発明は、血液バッグに取りつけられる血液出入口用チ
ューブを密封保護するプロテクターの製造方法であって
、プロテクターとなるべき２枚のシートの間にチューブ
を挟み、該チューブを挟んだ部位におけるシートのうち
、プロテクターを形成するため溶着すべき部位を加熱す
るととも輪。
該加熱部位に隣接する部位を断熱材で接触させることを
特徴とする血液バッグの出入口プロテクターの製造方法
を要旨とする。
本発明において、プロテクターのシートにおける加熱部
位に隣接する部位を断熱材で接触させるためには、２〜
３■■の厚さを有する板状や布帛状の断熱材を金型の内
側に張り付けておけばよい。
本発明において断熱材の材質は耐熱性も必要である。そ
のため三弗化エチレン樹脂、四弗化エチレン樹脂が好ま
しが、その他シリコン樹脂や芳香族ポリアミド樹脂など
も使用することができる。
【作用】
本発明では、上下金型に付けられた各断熱材が溶着部分
以外に熱の伝わることを妨げながら、溶着部分のみを加
熱金型で加熱し、溶着することができる。したがって、
溶着部分以外のシート部分の軟化が比較的少な（、かつ
溶着しないため、非溶着部分の溶着部分との境界付近で
シートの強力低下による破れが起こらないので袋部分の
破れを防止することができる。[Problems to be Solved by the Invention] However, in the conventional manufacturing method, as shown in FIGS. 4 and 5, there is Tears15 often occurred. The reason why such a tear occurs is that due to pressure welding of the sheet, the non-welded sheet becomes soft near the boundary between the welded area and the non-welded area, and the sheet becomes unable to withstand the bulge of the tube 11 in one cylinder. Therefore, the present invention aims to provide a method for manufacturing a protector in which tearing does not occur in one bag portion in view of the circumstances on the ridges. [Means for solving the problem] The present invention has the following problems: A method for manufacturing a protector that seals and protects a blood inlet/outlet tube attached to a blood bag, the tube being sandwiched between two sheets that should serve as the protector, and the protector being formed among the sheets at the site where the tube is sandwiched. The present invention provides a method for manufacturing an entrance/exit protector for a blood bag, which is characterized in that the area to be welded is heated and the area to be welded is heated and the area adjacent to the heated area is brought into contact with a heat insulating material. In order to bring the area adjacent to the heated area into contact with the heat insulating material, 2-
A plate-shaped or cloth-shaped heat insulating material having a thickness of 3 mm may be attached to the inside of the mold. In the present invention, the material of the heat insulating material must also have heat resistance. Therefore, trifluoroethylene resin and tetrafluoroethylene resin are preferred, but other resins such as silicone resin and aromatic polyamide resin can also be used. [Function] According to the present invention, only the welded portion can be heated and welded with the heating mold while the heat insulating materials attached to the upper and lower molds prevent heat from being transmitted to areas other than the welded portion. therefore,
There is relatively little softening of the sheet parts other than the welded parts (and since they are not welded, tearing due to a decrease in sheet strength near the boundary between the non-welded parts and the welded parts does not occur, so tearing of the bag part can be prevented. .
【実施例］
次に本発明の詳細な説明する。
第１図は本発明の製造方法の説明図、第２図は本発明に
よる出入口プロテクターの説明図である。
上下の金型１，１′には四弗化エチレン樹脂の断熱材２
．２“が付着されである。
まず、プロテクターとなるべきシートを適当な長さに切
断する。用いられるシート材料及びチューブ材料として
は、ポリエチレン、ポリプロピレン、ポリ塩化ビニル、
ポリエステル、ポリ（エチレンブチレン）ポリスチレン
ブロック共重合体又はそれらの混合物があげられる。シ
ートの厚さは２０〜３００μが好ましい。
本実施例ではポリ（エチレンブチレン）ポリスチレンプ
ロッタ共重合体（シェル化学社製クレイトンＧ−１６５
０） ４０重量％、ポリプロピレン（住人化学社製Ｆ
Ｌ−６７１１Ｎ） ３０重量％、エチレンエチルアクリ
レート共重合体（エチルアクリレート含量１５モル％９
日本ユニカー社製Ｄ Ｐ Ｄ Ｊ ６１８２） ３０重
置％をミキサーで混合し、 ２００″Ｃで溶融してシー
ト状に押出して厚さ２５０μのシートを成形した。
次に下部金型１°の上にチューブ１１を挟んだシー）３
．３’ を置く。
本実施例のチューブ１１はポリ（エチレンブチレン）ポ
リスチレンブロック共重合体（シェル化学社製クレイト
ンＧ−１６５０） ５４重量％、ポリプロピレン（住人
化学社製Ｆ Ｌ −６７１１Ｎ ） ２３重量％、エチ
レンエチルアクリレート共重合体（エチルアクリレート
含量１５モル％９日本ユニカー社製ＤＰＤＪ６１８２）
２３重量％を混合した重合体混合物を溶融し、２００
°Ｃでチューブ状に射出成形し、内径５−１外径７ ｔ
ｓｔｍ、長さ４ｃｍのものとした。
上部金型ｌを嵌め込んで金型の温度を３００°Ｃに加熱
し約８秒間押圧することによって２周囲が熱溶着された
プロテクター１２を得た。このようにして製造したプロ
テクター１２の袋部分１４の縮みや破れ状況を１００点
の試料についてみたところ、不良プロテクターは皆無で
あった。
（比較例）
実施例において上下の金型１，１゛に断熱材をつけない
まま、実施例と同様にプロテクター１２を製造した。こ
のようにして製造したプロテクターの不良率は２６％で
あった。
【発明の効果】
本発明によれば、プロテクターの袋部分の溶着部分付近
に破れや縮みが生じないので、バッグ内と外界と完全に
遮断し、外部からの細菌の混入を完全に防止する血液バ
ッグが得られる。[Example] Next, the present invention will be explained in detail. FIG. 1 is an explanatory diagram of the manufacturing method of the present invention, and FIG. 2 is an explanatory diagram of the doorway protector according to the present invention. The upper and lower molds 1 and 1' are equipped with tetrafluoroethylene resin insulation material 2.
．． 2" is attached. First, the sheet that will become the protector is cut to an appropriate length. The sheet material and tube material used include polyethylene, polypropylene, polyvinyl chloride,
Examples include polyester, poly(ethylene butylene) polystyrene block copolymer, or mixtures thereof. The thickness of the sheet is preferably 20 to 300μ. In this example, poly(ethylene butylene) polystyrene plotter copolymer (Krayton G-165 manufactured by Shell Chemical Co., Ltd.) was used.
0) 40% by weight, polypropylene (F
L-6711N) 30% by weight, ethylene ethyl acrylate copolymer (ethyl acrylate content 15 mol% 9
D P D J 6182) manufactured by Nippon Unicar Co., Ltd. (30%) was mixed in a mixer, melted at 200"C, and extruded into a sheet to form a sheet with a thickness of 250 μm. Next, the lower mold was placed 1° above the lower mold. Seat with tube 11 sandwiched between) 3
．． Place 3'. The tube 11 of this example is made of poly(ethylene butylene) polystyrene block copolymer (Krayton G-1650 manufactured by Shell Chemical Co., Ltd.) 54% by weight, polypropylene (F L-6711N manufactured by Sumitomo Chemical Co., Ltd.) 23% by weight, and ethylene ethyl acrylate. Polymer (ethyl acrylate content 15 mol% 9 DPDJ6182 manufactured by Nippon Unicar)
A polymer mixture containing 23% by weight was melted and 200%
Injection molded into a tube at °C, inner diameter 5-1 outer diameter 7t
stm, and the length was 4 cm. The upper mold 1 was fitted, the temperature of the mold was heated to 300° C., and the mold was pressed for about 8 seconds, thereby obtaining a protector 12 in which the two peripheries were thermally welded. When the shrinkage and tearing of the bag portion 14 of the protector 12 manufactured in this way was examined for 100 samples, there were no defective protectors. (Comparative Example) A protector 12 was manufactured in the same manner as in the example without attaching a heat insulating material to the upper and lower molds 1 and 1''. The defective rate of the protector thus manufactured was 26%. Effects of the Invention According to the present invention, there is no tearing or shrinkage near the welded part of the bag portion of the protector, which completely isolates the inside of the bag from the outside world and completely prevents contamination of bacteria from the outside. You get a bag.
第１図は本発明の製造方法の説明図、第２図は本発明に
よる出入口プロテクターの説明図、第３図は血液バッグ
の平面図、第４図は従来方法で製造したプロテクターの
問題点の説明図、第５図は第４図の（Ｉ）−（Ｉ）線断
面図である。
（図面の主要符号）
１及び１゛−加熱金型、２及び２゛−断熱材、３及び３
゛−ラード、１１−・−チューブ、 １２−プロテクタ
ー、 １３−溶着部分、 ｌｔ−袋部分。
特許出願人 株式会社ニッショー
第
第
第Fig. 1 is an explanatory diagram of the manufacturing method of the present invention, Fig. 2 is an explanatory diagram of the entrance/exit protector according to the invention, Fig. 3 is a plan view of a blood bag, and Fig. 4 is an illustration of the problems of the protector manufactured by the conventional method. The explanatory diagram, FIG. 5, is a sectional view taken along the line (I)-(I) in FIG. 4. (Main symbols in the drawings) 1 and 1゛-heating mold, 2 and 2゛-insulation material, 3 and 3
- Lard, 11 - Tube, 12 - Protector, 13 - Welded part, lt - Bag part. Patent applicant Nissho Co., Ltd. Dai-ichi
Claims (1)
ブを密封保護するプロテクターの製造方法であって、プ
ロテクターとなるべき２枚のシートの間にチューブを挟
み、該チューブを挟んだ部位におけるシートのうち、プ
ロテクターを形成するため溶着すべき部位を加熱すると
ともに、該加熱部位に隣接する部位を断熱材で接触させ
ることを特徴とする血液バッグの出入口プロテクターの
製造方法。(1) A method for manufacturing a protector that seals and protects a blood inlet/outlet tube attached to a blood bag, in which the tube is sandwiched between two sheets that are to be the protector, and among the sheets in the area where the tube is sandwiched, A method for manufacturing a blood bag entrance/exit protector, which comprises heating a region to be welded to form a protector, and bringing a region adjacent to the heated region into contact with a heat insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2146699A JPH0438954A (en) | 1990-06-04 | 1990-06-04 | Manufacture of outlet/inlet protector for blood bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2146699A JPH0438954A (en) | 1990-06-04 | 1990-06-04 | Manufacture of outlet/inlet protector for blood bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0438954A true JPH0438954A (en) | 1992-02-10 |
Family
ID=15413557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2146699A Pending JPH0438954A (en) | 1990-06-04 | 1990-06-04 | Manufacture of outlet/inlet protector for blood bag |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0438954A (en) |
-
1990
- 1990-06-04 JP JP2146699A patent/JPH0438954A/en active Pending
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