Review and state of the art on radiation sterilization of medical devices

1990 ◽  
Vol 35 (1-3) ◽  
pp. 357-360 ◽  
Author(s):  
J.W. Dorpema
Keyword(s):  
Medical Devices ◽  
State Of The Art ◽  
Radiation Sterilization

scholarly journals Biomechanical behaviours of the bone–implant interface: a review

2019 ◽  
Vol 16 (156) ◽  
pp. 20190259 ◽  
Author(s):  
Xing Gao ◽  
Manon Fraulob ◽  
Guillaume Haïat
Keyword(s):  
Bone Tissue ◽  
Medical Devices ◽  
State Of The Art ◽  
Biomechanical Properties ◽  
Review Article ◽  
Implant Stability ◽  
Bone Implant ◽  
Current State ◽  
Mechanical Methods

In recent decades, cementless implants have been widely used in clinical practice to replace missing organs, to replace damaged or missing bone tissue or to restore joint functionality. However, there remain risks of failure which may have dramatic consequences. The success of an implant depends on its stability, which is determined by the biomechanical properties of the bone–implant interface (BII). The aim of this review article is to provide more insight on the current state of the art concerning the evolution of the biomechanical properties of the BII as a function of the implant's environment. The main characteristics of the BII and the determinants of implant stability are first introduced. Then, the different mechanical methods that have been employed to derive the macroscopic properties of the BII will be described. The experimental multi-modality approaches used to determine the microscopic biomechanical properties of periprosthetic newly formed bone tissue are also reviewed. Eventually, the influence of the implant's properties, in terms of both surface properties and biomaterials, is investigated. A better understanding of the phenomena occurring at the BII will lead to (i) medical devices that help surgeons to determine an implant's stability and (ii) an improvement in the quality of implants.

scholarly journals Photothermally active nanoparticles as a promising tool for eliminating bacteria and biofilms

2020 ◽  
Vol 11 ◽  
pp. 1134-1146
Author(s):  
Mykola Borzenkov ◽  
Piersandro Pallavicini ◽  
Angelo Taglietti ◽  
Laura D’Alfonso ◽  
Maddalena Collini ◽  
...  
Keyword(s):  
Medical Devices ◽  
Bacterial Contamination ◽  
Near Infrared ◽  
State Of The Art ◽  
Implantable Devices ◽  
Light Activation ◽  
Promising Tool ◽  
Infrared Spectral ◽  
Active Nanoparticles ◽  
Antibacterial Surfaces

Bacterial contamination is a severe issue that affects medical devices, hospital tools and surfaces. When microorganisms adhere to a surface (e.g., medical devices or implants) they can develop into a biofilm, thereby becoming more resistant to conventional biocides and disinfectants. Nanoparticles can be used as an antibacterial agent in medical instruments or as a protective coating in implantable devices. In particular, attention is being drawn to photothermally active nanoparticles that are capable of converting absorbed light into heat. These nanoparticles can efficiently eradicate bacteria and biofilms upon light activation (predominantly near the infrared to near-infrared spectral region) due a rapid and pronounced local temperature increase. By using this approach new, protective, antibacterial surfaces and materials can be developed that can be remotely activated on demand. In this review, we summarize the state-of-the art regarding the application of various photothermally active nanoparticles and their corresponding nanocomposites for the light-triggered eradication of bacteria and biofilms.

A study on radiation sterilization of medical devices in the South of China

1993 ◽  
Vol 42 (4-6) ◽  
pp. 641-643
Author(s):  
Wen Zhutang ◽  
Lou Riyou ◽  
Li Meilan ◽  
Liu Xueqin ◽  
Lin Najie ◽  
...  
Keyword(s):  
Medical Devices ◽  
Radiation Sterilization ◽  
The South

Company News

2001 ◽  
Vol 05 (14) ◽  
pp. 291-301
Keyword(s):  
Medical Devices ◽  
Strategic Alliance ◽  
State Of The Art ◽  
Life Sciences ◽  
Medical Products ◽  
First Order ◽  
Commercial Use ◽  
Sign Distribution ◽  
Wastewater Recycling ◽  
Set Up

Cell Robotics' Medical Devices Well Received in China. US National Nutritional Foods Association and China's Sanjiu Pharmaceutical Establish Historic Partnership. Novacor LVAS Approved for Commercial Use in Japan. NOMOS and Lynmed to Jointly Distribute Medical Products in China and HK. Eli Lilly to Buy Out Ranbaxy's Stake. US-based Dragon Expands Business in Hong Kong and China. Australia's Global Doctor and US MedAire Announce Strategic Alliance. Taiwan's Gene Born Biotech Corp Adopts Thermogenesis's BioArchive System. Cepheid and BioSynTech Sign Distribution Agreement To Enter Life Sciences Research Market in Southeast Asia. Harbin Pharmaceutical Completes China's Largest Antibiotic Wastewater Recycling Project. Eli Lilly to Set Up State-of-the-Art Systems Biology R&D Center in Singapore. Varian Receives First Order for World's Most Powerful NMR Spectrometer from Japan.

scholarly journals Исследование влияния облучения ускоренными электронами на физические свойства полиэтилентерефталата

2022 ◽  
Vol 48 (5) ◽  
pp. 30
Author(s):  
В.А. Шарапова ◽  
И.С. Каманцев ◽  
В.П. Швейкин ◽  
В.Ю. Иванов ◽  
О.В. Рябухин
Keyword(s):  
Ir Spectroscopy ◽  
Physical Properties ◽  
Ir Spectra ◽  
Polyethylene Terephthalate ◽  
Medical Devices ◽  
Radiation Sterilization ◽  
Accelerated Electrons ◽  
Post Radiation

The influence of irradiation with accelerated electrons (energy 8.5 MeV, dose 5 kGy) on the physical properties of medical devices made of polyethylene terephthalate (PET) by infrared (IR) spectroscopy was studied. The revealed post-radiation changes in the IR spectra can be used to justify the choice of the dose of irradiation of PET products with electrons during the radiation sterilization procedure.

scholarly journals Design and Evaluation of a Novel Instrument Gripper for Handling of Surgical Instruments

2021 ◽  
Vol 7 (1) ◽  
pp. 1-5
Author(s):  
Jan Heibeyn ◽  
Nils König ◽  
Nadine Domnik ◽  
Matthias Schweizer ◽  
Max Kinzius ◽  
...  
Keyword(s):  
Medical Devices ◽  
State Of The Art ◽  
Surgical Instruments ◽  
Risk Of Infection ◽  
Force Transmission ◽  
Common Features ◽  
Force Closure ◽  
Pick And Place ◽  
Manual Labour ◽  
Cleaning And Disinfection

Abstract Introduction: Contaminated surgical instruments are manually prepared for cleaning and disinfection in the reprocessing unit for medical devices (RUMED). Manual labour exposes staff to the risk of infection and is particularly stressful at peak times due to the large volume of instruments. Partial automation of processes by a robot could provide a solution but requires a gripper that can handle the variety of surgical instruments. This paper describes the development and first evaluation of an instrument gripper. Methods: First, an analysis of gripping geometries on basic surgical instruments is carried out. Based on the identified common features and a review of the state of the art of gripper technology, the SteriRob gripper concept is developed. The concept is compared with a force closure gripper in a series of tests using seven criteria. Results: Both gripping approaches investigated can be used for handling surgical instruments in a pick-and-place process. However, the SteriRob gripper can transmit significantly higher acting forces and torques. In addition, the gripping process is more robust against deviations from the expected instrument position. Conclusion: Overall, it has been shown that the developed instrument gripper is suitable for about 60% of reusable surgical instruments due to the focus on horizontal cylindrical geometries. Because of the large possible force transmission, this gripping approach is particularly suitable for tasks in which the robot assists with cleaning processes.

scholarly journals Design of Hack-Resistant Diabetes Devices and Disclosure of Their Cyber Safety

2016 ◽  
Vol 11 (2) ◽  
pp. 198-202 ◽  
Author(s):  
Jonathan Sackner-Bernstein
Keyword(s):  
Risk Assessment ◽  
Operating Systems ◽  
Medical Devices ◽  
Cyber Security ◽  
State Of The Art ◽  
Security Testing ◽  
Cyber Safety ◽  
Regulatory Bodies ◽  
Recognition And Response ◽  
Inform Decision Making

Background: The focus of the medical device industry and regulatory bodies on cyber security parallels that in other industries, primarily on risk assessment and user education as well as the recognition and response to infiltration. However, transparency of the safety of marketed devices is lacking and developers are not embracing optimal design practices with new devices. Achieving cyber safe diabetes devices: To improve understanding of cyber safety by clinicians and patients, and inform decision making on use practices of medical devices requires disclosure by device manufacturers of the results of their cyber security testing. Furthermore, developers should immediately shift their design processes to deliver better cyber safety, exemplified by use of state of the art encryption, secure operating systems, and memory protections from malware.

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