BR102018010699A2 - resorbable surgical suture thread with antibacterial oil coating - Google Patents

resorbable surgical suture thread with antibacterial oil coating Download PDF

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Publication number
BR102018010699A2
BR102018010699A2 BR102018010699A BR102018010699A BR102018010699A2 BR 102018010699 A2 BR102018010699 A2 BR 102018010699A2 BR 102018010699 A BR102018010699 A BR 102018010699A BR 102018010699 A BR102018010699 A BR 102018010699A BR 102018010699 A2 BR102018010699 A2 BR 102018010699A2
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BR
Brazil
Prior art keywords
surgical
oil coating
suture thread
surgical suture
oil
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Application number
BR102018010699A
Other languages
Portuguese (pt)
Inventor
Correia Sampaio Fábio
Albuquerque Passos Farias Isabela
Gomes Da Silveira Karoline
Van Der Linden Lília
Original Assignee
Univ Federal Paraiba
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Publication date
Application filed by Univ Federal Paraiba filed Critical Univ Federal Paraiba
Priority to BR102018010699A priority Critical patent/BR102018010699A2/en
Publication of BR102018010699A2 publication Critical patent/BR102018010699A2/en

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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
    • A61L17/00Materials for surgical sutures or for ligaturing blood vessels ; Materials for prostheses or catheters
    • A61L17/005Materials for surgical sutures or for ligaturing blood vessels ; Materials for prostheses or catheters containing a biologically active substance, e.g. a medicament or a biocide

Abstract

a presente invenção traz um valor agregado ao fio de sutura por reduzir a frequência de bactérias no sítio cirúrgico, visando a diminuição da prevalência e gravidade de infecções pós-operatórias. o dito fio de sutura é constituído por fibra sintética, trançada de poliglactina 910(1) composta por copolímero obtido a partir ácido glicólico e l-lactida na proporção 9:1 e superfície com óleo de lippia sidoides com atividade de inibição(2)(3) do crescimento de staphylococcus aureus(fig. 3) e escherichia coli(fig. 4), frequentes em infecções de sítio cirúrgico.The present invention brings added value to the suture by reducing the frequency of bacteria at the surgical site, aiming at reducing the prevalence and severity of postoperative infections. said suture consists of synthetic fiber, braided polyglactin 910 (1) composed of copolymer obtained from glycolic acid and 1-lactide in a 9: 1 ratio and surface with inhibiting activity lippiaidosides oil (2) ( 3) growth of staphylococcus aureus (fig. 3) and escherichia coli (fig. 4), common in surgical site infections.

Description

“FIO DE SUTURA CIRÚRGICO REABSORVÍVEL COM REVESTIMENTO DE ÓLEO ANTIBACTERIANO” [001] A presente invenção trata de um fio de sutura cirúrgica reabsorível com revestimento de óleo da planta Lippia sidoides com aplicação na área de biotecnologia em materiais médico-hospitalares redução de bactérias presentes em infecções em sítios cirúrgicos.“REABSORVIBLE SURGICAL SURGICAL SUTURE THREAD WITH ANTIBACTERIAL OIL COATING” [001] The present invention deals with a resorbable surgical suture with oil coating from the Lippia menosides plant with application in the area of biotechnology in medical-hospital materials reduction of bacteria present in infections in surgical sites.

[002] Atualmente, o mercado médico-odontológico dispõe de fios absorvíveis pelo organismo (categute, colágeno, ácido poliglicólico, poliglactina 910) e não absorvíveis (seda, náilon, poliéster, poliamida, polipropileno, Polibutalato com cobertura de poliéster trançado e Poliglactina 910). O fio de Poliglactina 910 é uma fibra sintética, trançada, composta por copolímero obtido a partir ácido glicólico e L-lactida na proporção 9:1.[002] Currently, the medical and dental market has threads that are absorbable by the body (catgut, collagen, polyglycolic acid, polyglactin 910) and non-absorbable (silk, nylon, polyester, polyamide, polypropylene, Polybutylene with braided polyester cover and Polyglactin 910 ). Polyglactin 910 yarn is a synthetic fiber, braided, composed of a copolymer obtained from glycolic acid and L-lactide in a 9: 1 ratio.

[003] É sabido que os fios de sutura existentes representam uma superfície propensa a colonização de micro-organismos infecciosos, principalmente os multifilamentar, e, consequentemente, predispõem ao desenvolvimento de infecção pós-cirúrgica. O organismo humano possui naturalmente várias espécies de bactérias com potencial para contaminar o sítio cirúrgico. Dentre as bactérias, destaca-se o Staphylococcus aureus e a Escherichia coli por representar os mais comuns patógeno nos sítios cirúrgicos infectados (SIEVERT et al., 2013).[003] It is known that the existing suture threads represent a surface prone to colonization of infectious microorganisms, especially multifilament ones, and, consequently, predispose to the development of post-surgical infection. The human organism naturally has several species of bacteria with the potential to contaminate the surgical site. Among the bacteria, Staphylococcus aureus and Escherichia coli stand out for representing the most common pathogen in infected surgical sites (SIEVERT et al., 2013).

[004] Com o intuito de solucionar tais problemas propõe-se a presente invenção através da qual o fio de sutura multifilamentar possui um revestimento com atividade antibacteriana contra S. aureus e E. coli. Tal processo é conseguido com adsorção dos princípios ativos timol e carvacrol presentes no óleo de Lippia sidoides na superfície do fio pelo processo de carreamento pelo ácido graxo Ácido Palmítico após a evaporação do álccol metanol, como descrito na patente US8012173B2. A atividade abtibacteriana foi verificada pelo teste de difusão em poços. O fio de sutura foi imerso em placa de Petri contendo meio sólido Brain Heart Infusion (BHI) e inóculo bacteriano S. aureus e E. coli padronizados na escala de Mc Farland. Após o período de 24 h (S. aureus) e 48 h (E. coli) a 37 °C, foi observado e mensurado o halo de inibição. A adsorção do óleo ao fio de sutura permitiu inibição de crescimento bacteriano de 10 mm e 5 mm para S. aureus e E. coli, respectivamente. Enquanto, no fio de sutura sem revestimento, não foi observado halo de inibição.[004] In order to solve such problems the present invention is proposed through which the multifilament suture thread has a coating with antibacterial activity against S. aureus and E. coli. Such a process is achieved with adsorption of the active principles thymol and carvacrol present in the oil of Lippia sidoides on the surface of the wire by the process of carrying by the fatty acid Palmitic acid after the evaporation of the methanol alcohol, as described in the patent US8012173B2. Abtibacterial activity was verified by the well diffusion test. The suture thread was immersed in a Petri dish containing solid Brain Heart Infusion (BHI) medium and bacterial inoculum S. aureus and E. coli standardized on the Mc Farland scale. After the period of 24 h (S. aureus) and 48 h (E. coli) at 37 ° C, the inhibition zone was observed and measured. The adsorption of the oil to the suture allowed inhibition of bacterial growth of 10 mm and 5 mm for S. aureus and E. coli, respectively. While, in the uncoated suture, no inhibition halo was observed.

[005] A invenção poderá ser melhor compreendida através da seguinte descrição detalhada, em consonância com as figuras em anexo, onde: [006] A FIGURA 1 representa o fio de sutura trançado multifilamentar na solução de revestimento;[005] The invention can be better understood through the following detailed description, in line with the attached figures, where: [006] FIGURE 1 represents the multifilament braided suture in the coating solution;

[007] A FIGURA 2 representa o fio cortado em segmentos de 2 cm para teste antibacteriano;[007] FIGURE 2 represents the wire cut into 2 cm segments for antibacterial testing;

[008] A FIGURA 3 apresenta o resultado da atividade antibacteriana do fio de sutura com revestimento do óleo de Lippia sidoides contra S. aureus.[008] FIGURE 3 shows the result of the antibacterial activity of the suture thread coated with Lippia menosides oil against S. aureus.

[009] A FIGURA 4 apresenta o resultado da atividade antibacteriana do fio de sutura com revestimento do óleo de Lippia sidoides contra E. coli.[009] FIGURE 4 shows the result of the antibacterial activity of the suture thread coated with Lippia menosides oil against E. coli.

[010] Com referência a estas figuras, pode-se observar a superfície do fio absorvível multifilamentar(1).[010] With reference to these figures, it is possible to observe the surface of the multifilament absorbable thread (1).

[011] Halo de inibição de crescimento bacteriano ao redor do fio de sutura medido em milímetros, sendo 10 mm para S. aureus(2) e 5 mm para E. coli(3).[011] Bacterial growth inhibition halo around the suture thread measured in millimeters, 10 mm for S. aureus (2) and 5 mm for E. coli (3).

REIVINDICAÇÕES

Claims (4)

1. “FIO DE SUTURA CIRÚRGICO REABSORVÍVEL COM REVESTIMENTO DE ÓLEO ANTIBACTERIANO” constituído de fibra sintética trançada(1) caracterizado pelo dito fio(1) apresentar revestimento de óleo da planta Lippia sidoides adsorvido à superfície do fio com comprovada inibição do crescimento das bactérias responsáveis pela infecção no sítio cirúrgico.1. “REABSORVIBLE SURGICAL SURGICAL SUTURE THREAD WITH ANTIBACTERIAL OIL COATING” consisting of braided synthetic fiber (1) characterized by said thread (1) presenting oil coating of the Lippia by infection at the surgical site. 2. “FIO DE SUTURA CIRÚRGICO REABSORVÍVEL COM REVESTIMENTO DE ÓLEO ANTIBACTERIANO” de acordo com a reivindicação 1, caracterizado por ter superfície com óleo de Lippia sidoides com atividade de inibição do crescimento(2) de Staphylococcus aureus(Fig. 3).2. “REABSORBIBLE SURGICAL SURGICAL SUTURE WIRE WITH ANTIBACTERIAL OIL COATING” according to claim 1, characterized by having a surface with Lippiaidoides oil with growth inhibition activity (2) of Staphylococcus aureus (Fig. 3). 3. “FIO DE SUTURA CIRÚRGICO REABSORVÍVEL COM REVESTIMENTO DE ÓLEO ANTIBACTERIANO” de acordo com a reivindicação 1, caracterizado por ter superfície com óleo de Lippia sidoides com atividade de inibição do crescimento(3) de Escherichia coli(Fig.3. “REABSORBIBLE SURGICAL SURGICAL SUTURE WIRE WITH ANTIBACTERIAL OIL COATING” according to claim 1, characterized by having a surface with Lippiaidoides oil with growth inhibitory activity (3) of Escherichia coli (Fig. 4).4).
BR102018010699A 2018-05-25 2018-05-25 resorbable surgical suture thread with antibacterial oil coating BR102018010699A2 (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR102018010699A BR102018010699A2 (en) 2018-05-25 2018-05-25 resorbable surgical suture thread with antibacterial oil coating

Publications (1)

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B03A Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

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