Use of Textile in Bangladesh Medical textile

7/26/2019 Use of Textile in Bangladesh Medical textile.

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Special Fabric Production-TEX 415

12. Medical Textiles

Definition: A general term wic de!cribe! a te"tile !tructure wic a! beende!igned and produced for u!e in an# of a $ariet# of medical application!%including implantable application!&

An important and growing part of te te"tile indu!tr# i! medical% #gene andealt !ector& te e"tent of growt i! due to te de$elopment and impro$ementof 'nowledge in bot te"tile a! well a! medical !ector&

Te engineering approac to de$elop te"tile product! tat will be !uitable formedical and !urgical application !ould po!!e!! a combination of te following

propertie!

e&g& !trengt% fle"ibilit#% and !ometime! moi!ture and air permeabilit#&

(aterial! include natural fibre% monofilament a! well a! multifilament #arn!&

Te number of application i! uge and di$er!e% ranging from a !ingle tread!uture to te comple" compo!ite !tructure! for bone replacement% and from te!imple cleaning wipe to ad$anced barrier fabric! u!ed in operation room!& Tu!te te"tile! u!ed in medical and !urgical purpo!e! can be cla!!ified a! follow!)

*onplantable material!-+ound dre!!ing% bandage!% pla!ter! etc&

E"tracorporeal de$ice!- artificial 'idne#% li$er% and lung

,mplantable material!-!uture% $a!cular graft!% artificial ligament!%

artificial oint!% etc&

.ealtcare/#gine product!-bedding% cloting% !urgical gown!%

clot!% wipe! etc&

Te maorit# of te ealtcare product! are di!po!able wile !ome are reu!ed&Te medical product ba!ed on te"tile! i! around 0 2 billion in te #ear 3&

Fibre! u!ed

Fibre! u!ed in medical application ma# be cla!!ified a! follow!)

According to !ource of origin

1& *atural- otton and !il' mo!t widel# u!ed

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3& S#ntetic- 6i!co!e% pol#e!ter% pol#amide% pol#tetrafluoroet#lene 7PTFE8%pol#prop#lene% carbon% gla!!% and !o on&

According to biological re!i!tance

9iodegradable- Fibre! wic are ab!orbed b# te bod# witin 3-

mont! time after implantation and include otton% 6i!co!e ra#on%pol#amide% pol#uratene% collagen% and alginate% pol#caprolactone%pol#propiolactone&

*on biodegradable-Fibre! tat are ab!orbed b# te bod# !lowl# and

ta'e more tan !i" mont! time to degrade are con!idered a! nonbiodegradable

Fibre u!ed in medical te"tile! mu!t fullfill te following criterion

te fibre! mu!t be nonto"ic

mu!t be non-allergenic

mu!t be non-carcinogenic

mu!t be able to be !terili!ed witout imparing an# cange in teir

p#!ical or cemical caracteri!tic!&

were nece!!ar# biodegradable

were nece!!ar# non biodegradable

Traditionall# cotton% !il' and $i!co!e a! long been u!ed for medical and!urgical purpo!e!& ;ne !uc area of application i! wound care% were moi!tureand li


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Te concept of moi!t ealing a! !ince been re!pon!ible for te de$elopment ofman# fibre! wic a$e $a!tl# impro$ed wound management tecni Te purpo!e of te!e product! are to pro$ide

protection again!t infection% ab!orb blood and e"udate% promote ealing and in!ome in!tance! appl# medication to te wound&

ommon wound dre!!ing! are compo!ite material! con!i!ting of an ab!orbentla#er eld between a wound contact la#er and a fle"ible ba!e material& Teab!orbent pad ab!orb! blood or li


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?au@e- ,t i! an open wea$e ab!orbent fabric% wen coated wit paraffin wa" i!u!ed for te treatment of burn! and !cald!& ,n !urgical application gau@e !er$e!a! an ab!orbent material&

int- ,t i! a plain wea$e cotton fabric tat i! u!ed a! protecti$e dre!!ing for fir!taid and mild burn application&

+adding-,t i! a igl# ab!orbent material tat i! co$ered wit a nonwo$enfabric to pre$ent wound ade!ion or fibre lo!!&

7ii8 9andage!- 9andage! are de!igned perform a wole $ariet# of !pecificfunction! depending upon te final medical re


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ompre!!ion bandage! are cla!!ified b# te amount of compre!!ion te# cane"ert at te an'le and include e"tra >high, high, moderate and lightcompressioncan be eiter wo$en and contain cotton and ela!tomeric #arn! orwarp and weft 'nitted in bot tubular or full# fa!ioned form!&

;rtopaedic cu!ion bandage! are u!ed under pla!ter ca!t! and compre!!ion

bandage! to pro$ide padding and pre$ent di!comfort&

*onwo$en ortopedic cu!ion bandage! are produced from pol#uratene foam%pol#e!ter% or plo#prop#lenefibre! and contain blend! of natural or !#nteticfibre!&

*o wo$en bandage! are ligtl# needle punced to maintain bul' and loft& Some!election of bandage! i! !own in boo'-p41&

E"tracorporeal de$ice!- Te!e are mecanical organ! tat are u!ed for bloodpurification and include te artificial 'idne# 7dial#!er8% te artificial li$er%

mecanical lung& Te function and performance! of te!e de$ice! benefit fromfibre and te"tile&

Te function of artificial 'idne# i! acie$ed b# circulating te blood troug amembrane% wic ma# be eiter a flat !eet or a bundle of ollow regeneratedcellulo!e fibre! in te form of cellopane tat retain te unwanted wa!tematerial!&

(ultila#ered filter! compo!ed of numerou! la#er! of needle punced fabric!

wit $ar#ing den!itie! ma# al!o be u!ed and are de!igned to remo$e te wa!tematerial! rapidl# and efficientl#&

Te artificial li$er utili@e! ollow fibre! or membrane! !imilar to to!e u!ed inartificial 'idne# to perform ig permeabilit# to ga!e! but low permeabilit# toli


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1& Te mo!t important factor i! poro!it# wic determine! te rate at wicuman ti!!ue will grow and encap!ulate te implant&

3& Small circular fibre! are better encap!ulated wit uman ti!!ue tan largerfibre! wit irregular cro!! !ection&

& To"ic !ub!tance! mu!t not be relea!ed b# te fibre pol#mer% and te fibre!!ould be free from !urface contamination! !uc a! lubricant! and !i@ing

agent!&4& Te propertie! of te pol#mer will influence te !ucce!! of te

implantation in term! of it! biodegradabilit#&Pol#amide i! te mo!t reacti$e material lo!ing it! o$erall !trengt after onl#two #ear! a! a re!ult of biodegradation& PTFE i! te lea!t reacti$e wit

pol#prop#lene and pol#e!ter i! in between

SUTU!S

Suture! are u!ed for clo!ure of wound!& Te# are eiter monofilament ormultifilament& *onbiodegradable !uture! are u!ed for clo!ure of e"ternalwound! and after ealing of te wound!% te# are remo$ed& 9iodegradable!uture! are u!ed for clo!ure of internal wound!) te !uter! are graduall#ab!orbed b# te bod#&

S"#T T$SSU! $M%&'(TS

Te"tile material! are u!ed for con!tructi$e and correcti$e !urger# of tendon!ligament! and cartilage&

'rti)icial tendons are woven or braided porous meshes or tapes

surrounded b* a silicone sheath& During implantation te natural tendon canlooped troug artificial tendon and ten !utured to it!elf in order to connect temu!cle to te bone&

Textile materials used )or arti)icial knee ligaments should not onl* possess

biocompatibilit* properties but must also have the ph*sical characteristicsneeded )or such a demanding application.

Artificial ligament! are braided compo!ite material! containing carbon andpol#e!ter filament!&

Tere are two t#pe! of cartilage! found in te uman bod# e&g-7i8 +a*linecartilages- te!e are den!e and ard and u!ed were rigidit# i! needed& 7ii8Ela!tic cartilage- are !oft

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ow den!it# pol#et#lene i! u!ed to replace facial% no!e% ear and troatcartilage&

carbon fibre reinforced compo!ite! !tructure! are u!ed for a#line cartilage&

.ealtcare/ #gine product!-

Structure: +o$en% 'nitted% nonwo$en and compo!ite

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Use of Textile in Bangladesh Medical textile