JPS5925742A - 内科−外科用包帯とその製法 - Google Patents

内科−外科用包帯とその製法

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Publication number
JPS5925742A
JPS5925742A JP58121707A JP12170783A JPS5925742A JP S5925742 A JPS5925742 A JP S5925742A JP 58121707 A JP58121707 A JP 58121707A JP 12170783 A JP12170783 A JP 12170783A JP S5925742 A JPS5925742 A JP S5925742A
Authority
JP
Japan
Prior art keywords
foam
substrate
composition
bandage
manufacturing
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
JP58121707A
Other languages
English (en)
Other versions
JPS6012056B2 (ja
Inventor
クリフオ−ド・ネイラ−
デイビツド・ポツクネル
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.)
Dow Silicones Corp
Original Assignee
Dow Corning Corp
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Filing date
Publication date
Application filed by Dow Corning Corp filed Critical Dow Corning Corp
Publication of JPS5925742A publication Critical patent/JPS5925742A/ja
Publication of JPS6012056B2 publication Critical patent/JPS6012056B2/ja
Expired legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42Use of materials characterised by their function or physical properties
    • A61L15/425Porous materials, e.g. foams or sponges
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/26Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/05Use of one or more blowing agents together
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S602/00Surgery: splint, brace, or bandage
    • Y10S602/90Method of making bandage structure

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Hematology (AREA)
  • Public Health (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials For Medical Uses (AREA)
  • Reinforced Plastic Materials (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 本発明は火1(〜及びその曲の(”+ IL!の治療に
用いる外rl川用いは内科用包帯及rFJl+ら包帯の
製〆ノモに11)1する。
火傷や外1jすの治療は、ni’)史的に消毒薬或いは
治療1[11吻鞘のJll[jl 1d・川或いは子わ
「)f、1′シにガー士及rJ”Jント布0)よ・5な
無PII4繊紺状包帯ろ!使用−4ろこと呑1)1′ん
下いる。そのようfC4″目゛−1は治療;’Qlll
に・旧りflいた”l 14bの中にHRKイ(が残−
1)た0す71〔1回ハ号まする。より新しい発錦(I
n成フィルムbひス1くンジ5−II′、へ使用−1ろ
ど一々を包んている。
1′11えば・111・削ろ−(・才力、込i−1もだ
ノリ=7−]:■、ラストマー自己帖官性バンド傷用包
47Fが米国特許第、7,4(、? ?、A 74号に
記述きれている。しかしながら。
前記包帯は通常存在する分泌液に関しては非吸収性であ
る。
中性の、トロンポゲンの網状連続気泡フオーム利料より
成る患部接触面層及び該接触面層に固定され一緒に伸縮
する気体透過性、微小孔性裏打層より成る外利用包帯が
米国/lf許第J、64tざ、4?−号に記述されてい
る。好適な発泡材料はポリウレタンフォームであり、l
L打層は例工ば、ポリプロピレンゴム、テフロンゴム或
いはシリコーンゴムである。しかしながら、前記包帯の
製造は患部接触面層及び裏打層をあらかじめ作り1次に
、張り合わせ作業において接着剤を用いて相互を接着す
る必要がある。
本発明は、補強された10門以下の厚さのシリコーンエ
ラストマー発泡体シートの一表面が連続気泡の患部接触
面層より成り、前記シートの他表面が実質的に非細胞貿
表面膜より成る内科及び外利用包帯を供給するにある。
本発明の包帯は体と接触する広い表面が連続気泡発泡体
構造をもち、外側表面が非細胞膜をもつシリコーンエラ
ストマー発泡体のシートより成る。発泡包帯使用中の耐
引裂性或いはその他の耐損傷性を向上するためには、適
当な繊維またはウェブのような材料1例えばナイロンネ
ット或いはポリエステルネットで補強される。
包帯は1皐さが/θ闘以下で、好適には約3市〜約6藺
である。
本発明の包帯の一製法は、基材上に発泡性シリコーンエ
ラストマー組成物を沈着させ、該組成物を発泡させて露
出表面に実質上非細胞性連続膜を形成場せることからな
る。発泡中に補強材ウェブを発泡体中に埋設すればよい
。硬化したら、発泡体ブロックの上部を切取って所望の
補強材及び表面の特性を持つシートを得ることができる
。しかし、前記製法はいくつかの問題点を持つ。例えば
、エラストマー発泡体の正確に薄い切片を切取ることは
困難である。この製法はまた発泡体の上部のみが所望の
表面を持つシートとして使用できるにすぎないから無駄
が多い0 本発明者は上記操作に関連した欠点を回避する新規な方
法によって、本発明の発泡包帯を得ることができること
を知見した。従って、本発明はまた液体発泡可能或いは
発泡中のシリコーンエラストマー組成物層を液体組成物
吸収性表面を持つ基板に施し1発泡可能或いは発泡中の
シリコーン組成物に補強材が埋込まれるように添加し、
得られた混合物を発泡或いは発泡を継続させ、そしてシ
リコーンエラストマー発泡体を少なくとも部分的に硬化
させ、その後で基板から発泡層を分離することより成る
内科−外科用包帯の製法をも包含する。
本発明の製法の実施の際には任意の液体発泡性−発泡中
のシリコーンエラストマー組成物を使用できる。本発明
で使用するのに好適な組成物はヒドロキシル基をも、つ
ポリジオルガノシロキサン、シリコーンと結合した水素
原子を持つシロキツ゛ン、硬化用触媒及びヒドロキシル
化化合物より成る組成物である。それらは普通コ液型製
品として入手できる。、2液容器の内容物を所定の配合
比で混合すれば混合物は発泡し1次いでエラストマース
ポンジに硬化する。このようなタイプの組成物は例えば
英国特Pl′F第79g、467号、第g A 7.A
 / 9号、第1.OA夕、り6コ号及び第1.Jり、
y、、2is号明細宵に記述されている。
/リコーンと結合した不飽和基を持つオルガノポリシロ
キリ゛ン、シリコーンと結合した水素原子をもつオルガ
ノシリコーン化合物及・び添加する触媒例として塩化第
二白金酸から成る発泡体形成性組成物も使用できる。前
記組成物は例えは英国特許第1.& 、2 :1.63
7号及び同第1.!f Qコ、6S7号明細書に記述さ
れている。特に包帯を露出している傷或いは火傷の治療
のために直接体に接触するように使用する場合、好まし
い組成物は包帯へ刺激及び有毒な性質を付与する添加物
が存在しf、Qいものが望ましい。
液体発泡組成物を支持する基板は、組成物に対して吸収
性をもつために十分な多孔性でなければならない。好適
な基板拐料は多孔性表面へ液状発泡組成物のわずかに浸
透することができる非光沢紙である。
木兄すノの新gl製法による包(;)の製造は液体発泡
性組成物を調製し、まだ流動性をもつ状態のうちに基板
へ施すことによって行うのが好都合である。発泡に含ま
れる化学反応速度に依存して組成物はこの段階で液体で
あるか或いはすでに膨張を開始して発泡体となりつつあ
ることもある。組成物を基板に施すには任意の適当な手
段を用いて行うことができ、例えば下部に横長の開口を
持つホッパーから施してもよく、或いはミキシングヘッ
ドに結合された横長の分配ノズルによって施してもよい
。適当な所望の包帯の厚さにするために発泡した発泡体
の深さは使用する発泡性液体の帖により、或は掻取り刃
の使用により、或はそれら画者により、または前記掻取
刃と均等な制御装置の使用によって制御される。
本発明の製法における深さ/厚さ制御の好適な方法は発
泡性或いは発泡中の組成物を担持した基板を該基板の運
動方向に対して直角方向に水平阿かれたゆつ(り回転す
るローラの下を通過させることよりなる。ローラ表面で
作業中に起こる硬化または部分硬化発泡組成物の蓄積は
掻取り刃或いは類似した装置処よってローラ表面から容
易に取り去られる。
本発明による製法は回分式で行ってもよいが。
より好ましくは連続式或は半連続式に行なわれる。こう
して1例えば発泡性或いは発泡中の組成物を静止した容
器、或いはロールまたは他の要因で動きつつある基板、
従ってそれ自体がコンヘヤーベルトを形成する基板或は
コンアベルトによって支持された基板上に注加する。
発泡体が固体エラストマーへの硬化するに先立って、適
当な補強材を発泡体中に埋め込む必要がある。この埋め
込みは、注加後、まだ液体である発泡性或いは発泡中の
組成物上に補強材シートを向き、自然に或いは押1−込
みにより補強材を組成物中に所望の深さ圧埋め込むこと
によって都合よく達成される。ttli強利を埋め込む
実際の深さは材料が包帯の個々の表面の所望される連続
膜或いは多孔質構造の達成を妨げないことを条件として
重要な制限はない。この技法による補助利の埋め込みを
容易に行うことを可能にするために補強材中を発泡性或
いは発泡中の組成物が流れ貫くことができるために補強
側は十分に穴を明けであるか、多孔質でなければならな
い。好適な補強材は紡織繊維網、特に合成繊、維例えば
ポリエステル、ポリプロピレン或いはアクリル繊維の絹
である。
使用する発泡体形成組成物のタイプに応じて発泡体は常
温でエラストマー固体に硬化することができるが、加熱
することにより硬化を促進することが好ましいかまたは
必要である。
組成物がエラストマー固体へ硬化したら、基板から取外
す。同時に場合によっては注意深く引き離すことによっ
て発泡体と基板を分離することが可能である。シートが
引き裂かれる可能性を回避するために基板に接して置か
れた分離ナイス或いは類似した切り刃を使用することに
よって分離を容易となすのが好ましい。発泡体を基板か
ら切り離すために十分鋭利であれば切り刃はどんなもの
でも十分である。
本発明を実施するための装置を水側のために第1図及び
第2図に示す。
第7図において1台或はその他の堅い表面lKよりロー
ル或はその他の要素Jより引き出されるoJ撓性吸収性
基板コは支持される。発泡性シリコーンエラストマー組
成物lは基板に対しく黄方向に延びるスリットをもつホ
ッパー3から基板−の表面上に施される。補強材7はロ
ールgから引き出され、液体発泡性組成物中に埋め込ま
れる。
出−図は第1図に示すホッパー左を基材の運動方向に対
して横方向に分配ヘッド9によって置換えた改変方法を
説明する。回転t+J能なローラー/θは発泡性組成物
を受取る基板の上方に該基、板の連動方向に対して横方
向に設けられる。
所望のローラが掻き取り刃(図示せず)を備えていれt
rそれは硬化才たけ1°fl(’y)硬化エクス1マ体
発III!体0) l+Jr化の余t!l’ 4CI)
’2すlv t、 タ1.It分ヲローラーかr〕切り
取る(llillき杢ゴする。
発11す体シートは11′f、終所WJ、 l+17 
、’7+tに、た占え一゛小幅の包(i)或いはj1昂
広のシートに製造され、或は、硬化後lり[望の大き丁
x、形に切断する。所望により、包・iりをIVモめた
?I、A度で処理するこ吉にょっ−C硬化の1((@を
高め、 Jil[発件物Ipiを除き、或は滅菌を行っ
てもよい。滅菌は2またエチレンオキシドにきら−J゛
よ’+ fJ化学的な方法によっても行なわれる。才だ
、も1〜小弗f、Q残留物を取り除く必要があれ11:
 、包’IF ’kl水洗する。所8)により、包帯に
薬剤例えば感染の抑制のための消YjI薬、抗生物り!
■或はその他の物′eIを塗布或いは含浸してもよい。
本発明の包(i)の川fIHな用途は傷及び火If7.
用包帯としで、綿4−?1としで、及びギブス古体の間
のライヲーと1.゛C使用するにある。
以ド(て実が1i IりlIを11.□!げて本発明を
説明−)る。
実M+i ((・IJ 、2Sχ1で約、2000センチボイズ(c p ) 
 の粘度を持つ、末端基がシラノールのポリジメチルン
ロギ→ノン、末端基がトリメチへンリへ基であるメJ−
ルー水素ボリンロキシン、低分イ[+1のヒト[1八“
シル化メヂルシロキリン、1−1州へ十及び触θ■とl
−てづり々ンf’j”l ’n−錫から4Cる成分をよ
く混合するこよによって組成!I+!I;2− fit
、ζ11製した。
il、) L)′1+た液体組成物を幅23 IIJで
堅い水平向に支持隊イ1゛ている多孔質紙基板と4ヰL
−C置かれた箱にポンプで注加した。’?1’iの+’
;il而壁下端上壁下端I−二〇間(l(]B、Lそ、
2朋の隙間ろ一;<’iるよ1)に箱の1111面壁を
(、り敗った。この壁の−F’ !’1lii t2!
二p(i枡した箱の底つゴまたLIJ IIV、ること
によつ−L ’li(体イ1′鴻絹成物を紙上いっしょ
に1111方に引へ用−4ことをh]能にした。
組成物の発、i−ノ、i4午11成物苓−紙の上(?ゴ
AL Ai”=した後。
4ぐL・ri川−)た。腎イ゛トシを開IIF; シた
「)Mを前方に引RIlt 1.、.11:l lL:
i IICおよf 、2 rnmのメツ・ユリイスノリ
−イロン什1イli 71:発/i樋体土方にf1ン1
t゛1するローラか「)引き出し、わ“1−かにT方に
引つ張6)4Vがら発泡体に沈めた。紙ノi(板を数メ
ートル引き出した後でこの[1v!作を終了り、発泡体
を塗布した基板をJθ分間JA IM’し゛〔エラスト
マー固体と1(るのに十6)な程度に硬化を進行なぜた
。太き4(刃のパレットナイフを)11・板と発汀シ体
J:の間の接触面に挿入して紙から発泡体をIIJり陪
すために使用し lこ 。
製品はI!?J、−J約〜rnmの用(1j’、j件、
抽「1f1工ラストマー発泡休ンートてあった。シート
の上部表面は実′7!(的に連続的l、i゛11i%で
あるが一トj’llt表面は細11iル11ダ構造であ
る。十反【1”1、物ダ゛(を洗沖除人1.故閑ずれば
シートは内科−外fll用包帯上−r 1iJ5用する
ために適したものであった。
【図面の簡単な説明】
第1図及び小ユ図(、■5本発明力法令虫施するための
++”(+118側面断面図である。 図中:/ ・ ・台1.2・ Φノ1(板1.7 ・ 
φ1ゴール、り・・発f包性ンリコーノエラストマーI
ll 5’< 9.a、S・φポツパー、乙・・スリッ
ト、7倫会神強14利、8・・「1−ル、9・・外記ヘ
ッド、 10・・rJ−ラー0 丁・  続  r市  if((’: 11r1力15どに 8月 5目 4”N+!’llj長官殿 1、 ・J+ (’lの表小 昭Ill !を年特許願第1コ/707号2、 発明の
名杓、 内科−外科用包帯とそのpす法 3、  ?+li +I ヲスルh ゛11作との関係 特許出願人 名手;ト  ダウ・コーニング・りずデッド11、代理
人 5−   ?Ili +I の文・1象手続捕市11; 昭和58年8月51−1 特許庁長官殿 1、 4丁件の表示 昭和!g年特許願第1コ17□7号 2、 発明の名称 内科−外科用包帯とその製法 3、 袖1[ニをする者 事件との関係 特許出願人 名称   ダウ・コーニング拳リミテッド4、代理人 5、 力17i1:の刻象 ム袖正の内容 (Ij  明卸1簡ダ頁10行1本発明の包帯@争・」
牙]庫発明包帯・・・」と補正する。

Claims (1)

  1. 【特許請求の範囲】 l 厚込が10mm以下のシリコーンエラストマー発泡
    体の補強きれたシートで、前■Cシートの一表面がj’
    li続気泡表面層であり、他表面が実質的に非細胞質表
    面膜より成る内科−外科用包帯。 ス 袖’jilt 4’Jが紡織網布より成る特ft「
    l!iV求の範囲81)7項記載の自利−外科用包帯。 、? 液体発泡性或いは発泡中のシリコーンエラストマ
    ー発泡体の層を該液体組成物を吸収する表面る:・持つ
    基板に施し、袖強旧をtitJ記発泡性或い劃よグ^山
    中の組成物に」!1!め込むよ・5に添加し、 f’+
    ) ”)れた混合物を発泡合せ或いは継続してイ/1泡
    さ畦−てシリコ1−ンエラストマー発ン1り体4−少く
    さも部分的に硬化させ、その後で基板か「】発泡体層を
    分離するこLより成る内科−外(・1用包帯の製法。 Z 吸収1牛丞板が非光沢紙である’l’!F i’l
    ’ ljl’J求の範1+119jルJltj、i己・
    成の製法。 5、発泡体層の基板からの分離を切り刃法による特許請
    求の範囲第3項または第4項記載の製法。 6、分離した発泡体シートが滅菌処理する特許請求の範
    囲第3項ないし第4項のいすれかに記載の製法。
JP58121707A 1982-07-06 1983-07-06 内科−外科用包帯とその製法 Expired JPS6012056B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8219448 1982-07-06
GB8219448 1982-07-06

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JPS5925742A true JPS5925742A (ja) 1984-02-09
JPS6012056B2 JPS6012056B2 (ja) 1985-03-29

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EP (1) EP0100148B1 (ja)
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JPS6012056B2 (ja) 1985-03-29
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DE3361779D1 (en) 1986-02-20
CA1236278A (en) 1988-05-10
EP0100148A1 (en) 1984-02-08

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