What is Maxon absorbable suture made of?
What is Maxon suture?
What are the two most important factors in determining the success of ablation?
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How long does it take for Maxon suture to dissolve?
In vivo experiments on rats showed a slight tissue reaction and a dissolution time of 120-180 days for Maxon and 180-240 days for PDS. With Maxon, tensile strength was measurable for 42-49 days, while the period for PDS amounted to 65-80 days.
What is Maxon suture made of?
Maxon™ synthetic absorbable sutures are prepared from polyglyconate, a copolymer of glycolic acid and trimethylene carbonate. The advanced extrusion process of the molecule of polyglyconate gives the suture: Excellent in-vivo strength retention.
Are polypropylene stitches dissolvable?
Description. Polypropylene is a non-absorbable synthetic monofilament surgical suture. This suture is not subject to degradation or loss of strength caused by the enzymatic action of the tissues.
Is Monosof absorbable?
Monosof™ monofilament nylon sutures are inert, nonabsorbable, sterile surgical sutures, which are available either dyed black, with Logwood extract, or undyed (clear).
What are Maxon sutures used for?
Maxon™ and Maxon™ CV synthetic absorbable sutures are indicated for use in general soft tissue approximation and/or ligation, including use in pediatric cardiovascular tissue, where growth is expected to occur, and in peripheral vascular surgery.
Which sutures are non absorbable?
Monosof™ monofilament nylon sutures are inert, nonabsorbable, sterile surgical sutures, which are available either dyed black, with Logwood extract, or undyed (clear). Monosof™ sutures are used in general soft tissue approximation and/or ligation.
What do non dissolvable stitches look like?
Non absorbable stitches are usually coloured, either black or blue. Non absorbable skin sutures require removal at 10 days post op. The thickness of the suture depends on a number of factors. These include the thickness of the skin, surgeon preference and location of the wound.
What suture material is absorbable?
Absorbable suture materials are catgut (collagen derived from sheep intestinal submucosa), reconstituted collagen, polyglycolide (e.g., Dexon®, Dexon II®, Dexon S®), poly(glycolide/lactide) random copolymer (e.g., Vicryl®), antimicrobial-coated Vicryl® (Vicryl Plus®),poly-p-dioxanone (e.g., PDS®, PDSII® PDS Plus), poly ...
What is the strongest non absorbable sutures?
Polypropylene has the greatest tensile strength of all synthetic nonabsorbable suture materials and no appreciable reduction in strength after implantation. It has low tissue reactivity and is the least thrombogenic suture material, and is, therefore, often used in vascular surgery.
Why do they call it catgut?
The word catgut is derived from the term kitgut or kitstring (the string used on a kit, or fiddle). Misinterpretation of the word kit as referring to a young cat led to the use of the term catgut.
Do non-absorbable sutures dissolve?
Absorbable sutures are often used for internal stitching. The material of absorbable sutures is designed to break down over time and dissolve. Nonabsorbable sutures must be removed. They won't dissolve.
Are nylon sutures absorbable?
Nylon sutures are non-absorbable sutures and possess excellent tensile strength. Nylon sutures are available in black colour. Nylon sutures have excellent knot security properties and can be easily removed with no tissue adherence. These sutures are infection resistant.
Is Maxon same as PDS?
PDS is similar to Maxon in terms of absorption and strength, but it has better handling and less memory.
Why do they call it catgut?
The word catgut is derived from the term kitgut or kitstring (the string used on a kit, or fiddle). Misinterpretation of the word kit as referring to a young cat led to the use of the term catgut.
What is Vicryl made of?
Vicryl Rapide is produced by irradiating Vicryl (Ethicon), a braided suture made from a copolymer of glycolic acid and lactic acid named Polyglactin 910, for accelerated bioabsorption. This suture is rehydrolyzed into glycolic acid and lactic acid in the body in 7–10 days after surgery.
What type of suture is Vicryl?
VICRYL Suture is a synthetic absorbable suture coated with a lactide and glycolide copolymer plus calcium stearate. It is indicated for use in general soft tissue approximation and/or ligation, including ophthalmic procedures, but not cardiovascular or neurological tissues.
Maxon™ Absorbable Sutures Product Support | Medtronic
Find in-service videos, product guides and manuals, FAQs, and other product training and support for Maxon™ monofilament absorbable sutures.
Suture materials comparison chart - Wikipedia
Plain catgut Chromic catgut Polyglycolide (P.G.A.) Polydioxanone (PDS) ; Description: Adsorbable biological suture material. Plain is an adsorbable suture made by twisting together strands of purified collagen taken from bovine intestines.The natural plain thread is precision ground in order to achieve a monofilament character and treated with a glycerol containing solution.
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Polysorb™ Braided Absorbable Sutures Product Support | Medtronic
Find in-service videos, frequently asked questions, and other product training and support for Polysorb™ braided absorbable sutures.
What is Maxon absorbable suture made of?
Maxon absorbable suture is fabricated from copolymers of glycolide and trimethylene carbonate (1,3-dioxan-2-one) building blocks. Maxon consists of 32.5% by weight (36 mol%) of trimethylene carbonate ( Katz et al., 1985) and is a poly (ester-carbonate). The polymerization process is divided into two stages ( Casey and Roby, 1982 ). The first is the formation of middle block which is a random copolymer of glycolide and 1,3-dioxan-2-one (trimethylene carbonate). Diethylene glycol is used as an initiator and stannous chloride dihydrate (SnCl 2 C•2H 2 O) serves as the catalyst. The polymerization is conducted at about 180 °C. The weight ratio of glycolide to trimethylene carbonate in the middle block is 15:85. After the synthesis of the middle block, the temperature of the reactive bath is raised to about 220 °C to prevent the crystallization of the copolymer and additional glycolide monomers as the end blocks are added into the reaction bath to form the final triblock copolymer. The undyed Maxon has a natural clear appearance, while green-color Maxon is dyed by green DG#6 with < 0.3% by weight. Maxon suture is sterilized by ethylene oxide and no coating is used.
What is Maxon suture?
Maxon is a synthetic, absorbable, monofilament copolymer of glycolide and trimethylene carbonate. It has better handling than polyglactin 910 and polypropylene but is considered more difficult to handle than polydiaxanone (Knoop et al., 1987; Kawcak and Baxter, 1996 ). Maxon is reported to have better knot security than PDS II ( Kawcak and Baxter, 1996 ). It has greater initial tensile strength after implantation than most other absorbable suture but after implantation the decrease in tensile strength is 81% at 14 days, 59% at 28 days and 30% at 42 days which is similar to PDS II ( Katz et al., 1985; Moy et al., 1992 ). On average, Maxon retains tensile strength for 42–92 days compared to 64–80 days for PDS II ( Hochberg et al., 2009 ). It is absorbed by hydrolysis like the other synthetic absorbable sutures and, like PDS II, loss of tensile strength occurs well before there is a significant reduction in mass. Absorption is complete by 6 months ( Ammirati, 2002 ).
What are the two most important factors in determining the success of ablation?
In 1999, Maxon showed that the two most important factors in determining the ablation success were the size of residual tissue and the effective half life of 131I in the tissue (Maxon, 1999).
What is Maxon suture made of?
Maxon™ synthetic absorbable sutures are prepared from polyglyconate, a copolymer of glycolic acid and trimethylene carbonate.
What is polysorb made of?
Polysorb™ sutures are composed of Lactomer™ glycolide/lactide copolymer, which is a synthetic polyester composed of glycolide and lactide (derived from glycolic and lactic acids). They are prepared by coating the suture with a mixture of a caprolactone/glycolide copolymer and calcium stearoyl lactylate.
What is biosyn made of?
Biosyn™ synthetic absorbable sutures are prepared from Gylcomer™ 631, a synthetic polyester composed of glycolide (60%), dioxanone (14%), and trimethylene carbonate (26%). These sutures are colored violet to increase visibility and are also available undyed.
How many rats were randomized into one of five study groups to compare standard absorbable sutures with a new synthetic?
Two hundred ten rats were randomized into one of five study groups to compare standard absorbable sutures with a new synthetic absorbable suture. We evaluated Maxon (polyglyconate), Vicryl (polyglactin), chromic catgut (catgut), and PDS (polydioxanone) with respect to tissue inflammatory reaction, k …
Is Maxon a good addition to PDS?
Maxon and PDS retained a larger percentage of tensile strength during the long postoperative period, whereas Vicryl and chromic catgut were mostly absorbed. Maxon is an excellent addition to ...
What is Maxon absorbable suture made of?
Maxon absorbable suture is fabricated from copolymers of glycolide and trimethylene carbonate (1,3-dioxan-2-one) building blocks. Maxon consists of 32.5% by weight (36 mol%) of trimethylene carbonate ( Katz et al., 1985) and is a poly (ester-carbonate). The polymerization process is divided into two stages ( Casey and Roby, 1982 ). The first is the formation of middle block which is a random copolymer of glycolide and 1,3-dioxan-2-one (trimethylene carbonate). Diethylene glycol is used as an initiator and stannous chloride dihydrate (SnCl 2 C•2H 2 O) serves as the catalyst. The polymerization is conducted at about 180 °C. The weight ratio of glycolide to trimethylene carbonate in the middle block is 15:85. After the synthesis of the middle block, the temperature of the reactive bath is raised to about 220 °C to prevent the crystallization of the copolymer and additional glycolide monomers as the end blocks are added into the reaction bath to form the final triblock copolymer. The undyed Maxon has a natural clear appearance, while green-color Maxon is dyed by green DG#6 with < 0.3% by weight. Maxon suture is sterilized by ethylene oxide and no coating is used.
What are absorbable sutures?
Absorbable sutures are ideal for internal wounds, such as those made after childbirth, but things may not always go to plan. A Mrs P was recovering after successful delivery of a baby boy, using an emergency Caesarean section. The following morning, she began to bleed heavily and was transferred to the labour suite and underwent corrective surgery. However, she suffered continuing problems with the outer wound, which was oozing a pink sticky fluid. The conventional stitches were removed, but about 10 minutes after, she stood up, and the wound opened. She was hor-rified to see her intestines spilling out, an incident witnessed by her shocked partner. She subsequently brought an action against the hospital and makers of the Vicryl sutures used to stitch her uterus.
How do absorbable sutures change?
It is important to consider chemical stability when modeling absorbable sutures, since absorbable materials change their mechanical properties with time when exposed to moisture which is abundant in the human body. Table 13.5 shows the breaking strength retention (%) and breaking elongation (%) for some commercial sutures. In a study on the degradation of collagen sutures it was found that in vitro enzymatic degradation occurred gradually as an erosion mechanism from the surface to the core ( Okada et al., 1992 ). In another study self-reinforced poly L-lactide (SR-PLLA) sutures had prolonged strength retention when immersed in phosphatebuffered distilled water (pH 7.4) at 37°C for 26 weeks as compared to PDS and Maxon. This suture can be used for tissues in need of support for a longer time as in bone surgery ( Mäkelä et al. 2002 ). Other synthetic resorbable sutures such as PLDLA (poly-L/D-lactide) have been found to retain their strength for a longer time compared to Maxon ( Kangas et al., 2000 ). Vicryl and PDS sutures (‘0’ or ‘2-0’) have shorter- and longer-term stability respectively in synovial fluid and phosphate-buffered saline at 37°C. Panacryl (2–0), however, may be used for longer-term applications of wound closure, tendon repair and arthroplasty ( Field and Stanley, 2004 ).
How do absorbable sutures keep their tensile strength?
6.6.1.1 Absorbability. Absorbable sutures keep their tensile strength as long as it is required over the healing process. Parallel to the increasing strength of the tissue, they are degraded by the tissue metabolism (proteolytic enzymatic degradation) until they are completely dissolved.
Is caprolactone a suture?
Caprolactone. Nonabsorbable sutures remain in place forever, as long as they are not removed. In general and visceral surgery they are still used for skin closure. It is assumed that the cosmetic result is superior since immune response is lower. At any rate, they are cheaper and easier to remove.
What is Maxon absorbable suture made of?
Maxon absorbable suture is fabricated from copolymers of glycolide and trimethylene carbonate (1,3-dioxan-2-one) building blocks. Maxon consists of 32.5% by weight (36 mol%) of trimethylene carbonate ( Katz et al., 1985) and is a poly (ester-carbonate). The polymerization process is divided into two stages ( Casey and Roby, 1982 ). The first is the formation of middle block which is a random copolymer of glycolide and 1,3-dioxan-2-one (trimethylene carbonate). Diethylene glycol is used as an initiator and stannous chloride dihydrate (SnCl 2 C•2H 2 O) serves as the catalyst. The polymerization is conducted at about 180 °C. The weight ratio of glycolide to trimethylene carbonate in the middle block is 15:85. After the synthesis of the middle block, the temperature of the reactive bath is raised to about 220 °C to prevent the crystallization of the copolymer and additional glycolide monomers as the end blocks are added into the reaction bath to form the final triblock copolymer. The undyed Maxon has a natural clear appearance, while green-color Maxon is dyed by green DG#6 with < 0.3% by weight. Maxon suture is sterilized by ethylene oxide and no coating is used.
What is Maxon suture?
Maxon is a synthetic, absorbable, monofilament copolymer of glycolide and trimethylene carbonate. It has better handling than polyglactin 910 and polypropylene but is considered more difficult to handle than polydiaxanone (Knoop et al., 1987; Kawcak and Baxter, 1996 ). Maxon is reported to have better knot security than PDS II ( Kawcak and Baxter, 1996 ). It has greater initial tensile strength after implantation than most other absorbable suture but after implantation the decrease in tensile strength is 81% at 14 days, 59% at 28 days and 30% at 42 days which is similar to PDS II ( Katz et al., 1985; Moy et al., 1992 ). On average, Maxon retains tensile strength for 42–92 days compared to 64–80 days for PDS II ( Hochberg et al., 2009 ). It is absorbed by hydrolysis like the other synthetic absorbable sutures and, like PDS II, loss of tensile strength occurs well before there is a significant reduction in mass. Absorption is complete by 6 months ( Ammirati, 2002 ).
What are the two most important factors in determining the success of ablation?
In 1999, Maxon showed that the two most important factors in determining the ablation success were the size of residual tissue and the effective half life of 131I in the tissue (Maxon, 1999).
