surgical sutures

Master Chimie, Ingénierie de la santé, BiomatériauxMaster Chimie, Ingénierie de la santé, Biomatériaux

Surgical threads

Abdoulanziz Abdillah

2013-2014


Introduction

DefinitionSurgical thread medical device used to hold body tissues together after an injury or surgery.Historic• Smith papyrus 1862, 4000 years before Christ.• ligate artery by Abu Al-Qasim (Al-Tasrif, around. 1000), Henri de Mondeville (Chirurgia, 1306-1320) and Ambroise Paré(1543) •20 th century ; synthetic thread by B. Braun in 1935 and Supramid de BASF in 1939Classification•Resorbable thread•Non resorbable thread


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Resorbable thread

Used on deep wound Total absence of foreign in the body after few time Broken down by hydrolysis (polyglycolic acid) and proteolytic enzymatic degradationExamples PGA

high strength modulus (7 GPa) particularly stiff. hydrolytic instability; presence of the ester linkage backbone good tolerance

Vicryl 2 to 3 weeks in tissues hydrolytic degradation ; 60-90days strength tensile;

Used in patients who cannot return for suture removal, or in internal body tissues


Non resorbable thread

• Used on skin wound closure, where the sutures can be removed after or in stressful internal environments where absorbable sutures will not suffice. Examples heart (constant pressure and movement) bladder (with adverse chemical conditions).

easier handling flexible, inelastic excellent narrowing nodes

• Often cause less scarring because provoke less immune response, used where cosmetic outcome is important. They must be removed after a certain time, or left permanently.

Example Silk resistant

Very flexible

Polypropylen

Polyamide6,6

UnalterableWithout tissue reactionGood tissue compatibility


Conclusion

• Surgical sutures are a class of very complex medical devices , characterized by multiple parameters at the thread.

• large number of products and references available to surgeons.• choosing multifactorial and based on nature of the tissue, the type of

suture to achieve or surgical technique , but also on subjective criteria that depend more on sensation and personal impressions of each surgeon , habits and experience .


Bibliography

[1].Jean-Noël MAURER, EVALUATION DE L’UTILISATION DES SUTURES ET DES LIGATYRES CHIRURGICALES AU C.H.U DE NANCY, UNIVERSITE HENRI POINCARE - NANCY 1, 2004 [2]. JORDANA, J.COLAT-PARROS, FILS DE SUTURES ET COLLES CHIRURGICALES, Société Francophone de Biomatériaux Dentaires, 2009-2010, p 4-13 [3]. SONIA TREMBLAY, DIEGO MANTOVANI, les fils de sutures :de fil en aiguille, BIOMATERIAUX , p 4-8[4].WIKIPEDIA,sutures(medecine),http://fr.wikipedia.org/wiki/Suture_(m%C3%A9decine)#Fils_r.C3.A9sorbables


Bibliography

[1].Jean-Noël MAURER, EVALUATION DE L’UTILISATION DES SUTURES ET DES LIGATYRES CHIRURGICALES AU C.H.U DE NANCY, UNIVERSITE HENRI POINCARE - NANCY 1, 2004 [2]. JORDANA, J.COLAT-PARROS, FILS DE SUTURES ET COLLES CHIRURGICALES, Société Francophone de Biomatériaux Dentaires, 2009-2010, p 4-13 [3]. SONIA TREMBLAY, DIEGO MANTOVANI, les fils de sutures :de fil en aiguille, BIOMATERIAUX , p 4-8[4].WIKIPEDIA,sutures(medecine),http://fr.wikipedia.org/wiki/Suture_(m%C3%A9decine)#Fils_r.C3.A9sorbables

Health & Medicine

surgical sutures