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cardiovascular surgery

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Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005654
EISBN: 978-1-62708-198-6
... in surgical implant applications, such as orthopedic, cardiovascular surgery, and dentistry. It addresses key issues related to the simulation of an in vivo environment, service conditions, and data interpretation. These include the frequency of dynamic loading, electrolyte chemistry, applicable loading modes...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005687
EISBN: 978-1-62708-198-6
...Abstract Abstract This article tabulates materials that are known to have been used in orthopaedic and/or cardiovascular medical devices. The materials are grouped as metals, ceramics and glasses, and synthetic polymers in order. These tables were compiled from the Medical Materials Database...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006404
EISBN: 978-1-62708-192-4
... environment for better design of implants and devices to sustain longer service periods. Conventionally, an implant, such as a hip or knee replacement, is expected to survive harsh dynamic conditions within the body for approximately 20 years for a patient who undergoes a replacement surgery at age 50...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006811
EISBN: 978-1-62708-329-4
... on the device "failures" that include fracture, wear, and corrosion. The article first discusses failure modes of long-term orthopedic and cardiovascular implants. The article then focuses on short-term implants, typically bone screws and plates. Lastly, failure modes of surgical tools are discussed...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005660
EISBN: 978-1-62708-198-6
.... These range from simple wires and screws to fracture fixation plates and total joint prostheses (artificial joints) for hips, knees, shoulders, ankles, and so on. In addition to orthopaedics, metallic implants are used in maxillofacial surgery, cardiovascular surgery, and as dental materials. Although many...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005659
EISBN: 978-1-62708-198-6
... question for young patients is to evaluate the risk incurred by replacing the device with a second surgery when the initial device is no longer effective. This assessment of risk versus benefit is the basis for determining the approval of a device by the Food and Drug Administration (FDA) and other...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005682
EISBN: 978-1-62708-198-6
...Abstract Abstract This article outlines the selection criteria for choosing an implant material for biomedical devices in orthopedic, dental, soft-tissue, and cardiovascular applications. It details the development of various implants, such as metallic, ceramic, and polymeric implants...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005653
EISBN: 978-1-62708-198-6
.... Metal alloys have been used in orthopaedic applications in greatest amounts related to fracture fixation devices and total joint arthroplasties. Alloys of cobalt, titanium, and iron also have been used in cardiovascular applications such as heart valves, stents, and pacemakers. In spinal applications...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004206
EISBN: 978-1-62708-184-9
... arthroplasties. Alloys of cobalt, titanium, and iron also have been used in cardiovascular applications such as heart valves, stents, and pacemakers. In spinal applications, metallic alloys are also used in significant quantities where adaptations and innovations from the fracture fixation field have evolved...
Book Chapter

By Matthew Donachie
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003168
EISBN: 978-1-62708-199-3
... surgery are invariably removed after bones have knit and sufficient bone strength has been achieved. Early hips implanted in the 1960s used stainless steel, but cobalt-chromium or titanium alloys are now the metallic materials of choice for long-term implants. Cobalt-Chromium Alloys Cobalt-chromium...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005669
EISBN: 978-1-62708-198-6
..., for the most part, by titanium-base alloys (because of their lower elastic modulus and high yield strength) and stainless steel, although even the latter is increasingly being displaced by titanium-base products. In cardiovascular surgery, cobalt-chromium alloys are used for making artificial heart valve...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005675
EISBN: 978-1-62708-198-6
... in orthopaedic surgery for nearly 30 years, motivated largely by two factors: Excellent biocompatibility and chemical stability Exceptionally low coefficients of friction and wear rates The superb tribologic properties (friction and wear) of Al 2 O 3 occur only when the grains are very small...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004208
EISBN: 978-1-62708-184-9
... in Various Surgical Specialties Metallic biomaterials are used in a great many surgical implant applications, which are mainly focused in the fields of orthopedic and cardiovascular surgery and dentistry. In some situations, biomaterials serve as temporary implants (fracture fixation devices that act...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005657
EISBN: 978-1-62708-198-6
... of corrosion-induced hydrogen embrittlement is shown in Fig. 20 . In this case, corrosion occurred on a pair of 17-4 PH stainless steel (H 900 condition) scissors (pitting corrosion areas indicated by arrows), eventually resulting in hydrogen-embrittlement-induced fracture during surgery. The intergranular...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004207
EISBN: 978-1-62708-184-9
.... Biomedical devices are usually subjected to static or dynamic forces, such as in orthopedic and cardiovascular applications. For example, various artificial joint implants, fracture fixation devices, heart valves, and vascular stents are all subjected to significant repetitive loadings. On the other hand...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4