Biomedical Materials in Surgery

Lyman, Donald J.; Seare, W. J.

doi:10.1146/annurev.ms.04.080174.002215

Cited by 26 publications

(13 citation statements)

References 2 publications

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“…The main properties that must be taken into account are: strength, elasticity modulus, bending and torsion, fatigue resistance, corrosion resistance and hardness [1,2]. The manufacturing process of metallic implantable medical devices is one of the most important stages of the production of implants, and this can be via casting, forging, machining, welding or by powder metallurgy.…”

Section: Introductionmentioning

confidence: 99%

“…The manufacturing process of metallic implantable medical devices is one of the most important stages of the production of implants, and this can be via casting, forging, machining, welding or by powder metallurgy. This process also involves cleaning, surface finish, marking and sterilization, according to the strictest standards of quality control [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…These surgeries lead to increased costs and health risks for patients. Therefore, research and development of biomaterials with improved surfaces is of great interest [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…The first reports of biomaterial use have 4000 years of existence, describing the use of sutures for repair of wounds. The reports of use of non-organic materials are from 1550, with the use of gold thread for sutures [1]. Earliest indications are also around this period, with the medical records of Hindu, Egyptian and Greek civilizations citing bone transplants from animals to humans.…”

Section: Introductionmentioning

confidence: 99%

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Electrochemical Characterization of an Optical Fiber Laser- Treated Biomaterial

Pieretti¹,

Corrêa²,

Pillis³

et al. 2018

Biomaterials - Physics and Chemistry - New Edition

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The implant manufacturing process includes texturization to enhance its adhesion and marking the final products for their identification, long-term quality control and traceability. Marking is carried out after cleaning and prior to sterilization. These marks eventually can concentrate stress leading to premature failure. The marked areas are defective regions that affect the passive film formed on the metallic biomaterials used for implants favoring the onset of various corrosion types, such as pitting, crevice or fatigue. This study aims to evaluate the effect of a Yb optical fiber laser marking processes used for metallic implants on the localized corrosion resistance of the austenitic stainless steel ISO 5832-1. This is one of the most used materials for manufacturing implants. The electrochemical behavior of the marked areas obtained by this method was evaluated in a phosphate-buffered saline (PBS) solution with pH of 7.4 and the results were compared with unmarked samples. All tested surfaces were prepared according to the recommendations for the use in surgery. For localized corrosion resistance evaluation, electrochemical tests such as monitoring the open circuit potential (OCP), electrochemical impedance spectroscopy (EIS) and cyclic potentiodynamic polarization measurements were performed. The results showed that the laser marks affect the protector characteristics of the biomaterial's passive film. Lower pitting resistance was associated to the laser marked areas.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…These surgeries lead to increased costs and health risks for patients. Therefore, research and development of biomaterials with improved surfaces is of great interest [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Electrochemical Characterization of an Optical Fiber Laser- Treated Biomaterial

Pieretti¹,

Corrêa²,

Pillis³

et al. 2018

Biomaterials - Physics and Chemistry - New Edition

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“…On the basis of these results, we proposed the following mechanism for the in vivo initiation of a thrornbus on a polymer surface (1,20,21 Since Silastic Rubber adsarbs 70% alburnin on its surface and yet is mildly thrombogenic, one might estirnate that the albumin content on the surface IIIUst be grea.ter than 70% of the total protein adsorbed if the polymer is to be non-thrc:rnbogenic.…”

mentioning

confidence: 99%

New progress in biomedical polymer materials

Lyman

1978

Pure and Applied Chemistry

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-In this highly cornplex interdisciplinary area of biornedical polymers, progress is beginning to be nade in a variety of implants. Of probable major iinportance is that of S!I13.ll diameter blood vessel repair. The studies leading to the development of a S!I13.ll diameter vascular graft are discussed to show the interrelationship between polYJII7r surfac: and rulk ~hology, polymer-protein interaction, platelet adhes1.on, and llllplant mechan1.cal properties on the perfonnance of the implant in the body.A variety of polymeric implants have been tried for repair or replacement of darnaged or diseased tissues and organs. Initially these implants used polymeric rnaterials developed for other, non-biological applications. As a result, the implants, at best, worked in linuted situations, and at worst failed. During this last decade, we have seen a tremendous increase in research on the development of polymer rnaterials for biamedical applications. While some scientific progress has been nade, there has not been an accornpanying progr>ess in the clinical and surgical utilization of these biornedical inaterials. fuch of this has resulted from a lack of coupling between research in bicmediccil. rnaterials and the development studies related to the end-use applications. If we are to realize the potential in this area in which implant rnaterials are used to restore structure and function of the body, a variety of modified or new rna.terials, designed specifically for use in the body, are needed. However, this requires gaining an understanding of how polymer rnaterials and the biological system interact at the molecular level and the rnacroscopic (or implant) level.In this highly ccmplex interdisciplinary area, progr>ess is beginning to be rnade in a variety of implants. With the variety of excellent papers being presented in this section of the program, I will limit myself to discussing the development of a srnall diameter vascular gr>aft, and show the interrelationship between polymer surface and rulk rrorphology, polymer-protein interaction, implant mechanical properties, and polymer degr>adation on implant performance.The ultirnate goal of these studies is the development of satisfactory replacement rnaterials for damaged or obstructed veins or S!I13.ll diameter (less than 5 rrm) arteries. The need for such a prosthesis is not only in the area of peripheral vascular surgery where it is necessary for bypassing arterial obstruction, but also in aorta-coronary surgery where it is estimated 100,000 operations requiring srnall diarneter vessels will be perfarmed in 1977. Currently, the surgeon is forced to use autogenaus tissue such as the saphenous vein in these situations. This method has disadvantages in that satisfactory veins are not available in 10 to 25% of patients. Even in patients having satisfactory veins, one is limited in the size and quality available with removal of the veins requiring increased operating time. Therefore, the solving of this problern would be of significance to the surgeon and to the...

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