scholarly journals The Developement of a New Shoulder Joint Prothesis System

2021 ◽  
Vol 15 (1) ◽  
pp. 80-86
Author(s):  
István Nemes-Károly ◽  
György Kocsis ◽  
Gábor Szebényi
Keyword(s):  
Medical Devices ◽  
Shoulder Joint ◽  
Medical Diagnostics ◽  
Minimal Invasive ◽  
Economical System ◽  
Production Technologies ◽  
Implant System ◽  
High Degree ◽  
Metal Polymer

Abstract In our work, we designed a new metal-polymer shoulder implant system that fully meets today’s requirements - minimal invasive technology, a high degree of modularity - and can be personalized as needed. At the same time, its production does not exceed the currently available production technologies. Also, the data and parameters which are needed to design the tailor-made construction are easily accessible, as we have chosen a device that is widespread and commonplace in medical diagnostics and available in any hospital. Furthermore, we have tried to make our system as easy and fast to authorize as possible because it is challenging to place medical devices on the market, especially implants. We have tried to create the cheapest, most economical system and in addition, we wanted to gain the trust of implant specialists, as we incorporated their insights and experiences into our construction through continuous consultation.

scholarly journals Transfiguring Healthcare: Three-Dimensional Printing in Pharmaceutical Sciences; Trends during COVID-19: A Review

2021 ◽  
pp. 207-218
Author(s):  
K. G. Siree ◽  
T. M. Amulya ◽  
T. M. Pramod Kumar ◽  
S. Sowmya ◽  
K. Divith ◽  
...  
Keyword(s):  
3D Printing ◽  
Medical Devices ◽  
Three Dimensional ◽  
Pharmaceutical Sciences ◽  
Three Dimensional Printing ◽  
Custom Made ◽  
High Degree ◽  
The Impact ◽  
Dimensional Printing ◽  
Shed Light

Three-dimensional (3D) printing is a unique technique that allows for a high degree of customisation in pharmacy, dentistry and in designing of medical devices. 3D printing satiates the increasing exigency for consumer personalisation in these fields as custom-made medicines catering to the patients’ requirements are novel advancements in drug therapy. Current research in 3D printing indicates towards reproducing an organ in the form of a chip; paving the way for more studies and opportunities to perfecting the existing technique. In addition, we will also attempt to shed light on the impact of 3D printing in the COVID-19 pandemic.

Evaluation Of Human Errors And Malfunctions For Minimal Invasive Surgeries In Conventional and Integrated OR Solutions

2013 ◽  
Vol 2 (1) ◽  
pp. 90-91
Author(s):  
A - M Von Saucken ◽  
J Prümper ◽  
M Kraft
Keyword(s):  
Medical Devices ◽  
Minimal Invasive ◽  
Design Guidelines ◽  
Human Machine Interaction ◽  
German Research Foundation ◽  
Human Errors ◽  
German Research ◽  
Technical Systems ◽  
Integrated Or ◽  
Machine Interaction

This German Research Foundation project aims to investigate the human-machine interaction of the operating theatre as a work system and from the results deduce measures and, using consolidated medical devices as an example, develop design guidelines for a prospective development of complex integrated technical systems.

Two-Axis Solid-State Microgyroscope on Surface Acoustic Waves

2019 ◽  
Vol 20 (5) ◽  
pp. 299-307
Author(s):  
V. P. Sizov ◽  
V. N. Pogorelov ◽  
Yu. V. Vakhtin
Keyword(s):  
Solid State ◽  
Elastic Waves ◽  
Acoustic Waves ◽  
Surface Acoustic Waves ◽  
Oscillation Amplitude ◽  
Substrate Layer ◽  
Production Technologies ◽  
Wave Models ◽  
And Control ◽  
High Degree

This article focuses on the development of a two-axis solid state micro gyroscope (SMG) on surface acoustic waves (SAW). The described gyroscope belongs to the category of inexpensive sensing elements featuring a high degree of longtime overload stability. This advantage seems to make SAW SMGs a priority choice for navigation and control systems functioning in severe overload environments of up to 65,000 g. As of today SAW SMGs are designed according to a number of known principles. Such SMGs may also operate on standing SAWs or traveling SAWs. This article addresses the first gyro type. Unfortunately, the existing standing SAW SMGs share a common limitation of measuring angular rates in relation to one axis only. This research attempts to introduce an innovative two-axis standing SAW SMG. The influence of the basis rotation on the parameters of the elastic waves traveling within the substrate layer was carefully studied. Incident and reflected wave models were also elaborated. The numerical simulation results demonstrate the effects of the basis rotation on the complex factors of the volume waves reflected by the substrate layer and on the phase velocity and frequency thereof as well as on the oscillation amplitude of the particles involved in SAW transition, and on the elliptical particle movement path configuration. Also, the SAW SMG is compared to the existing micromechanical gyroscopes, and the basic SAW SMG production technologies are reviewed.

scholarly journals Stimulating electrode Design for Implantable Sub Retina Research Application: A Novel Approach

2018 ◽  
Vol 7 (2.24) ◽  
pp. 570
Author(s):  
T Alavanthar ◽  
V Ellappan
Keyword(s):  
Charge Injection ◽  
Internal Surface ◽  
Initial Step ◽  
Minimal Invasive ◽  
Design Stage ◽  
Electrode Position ◽  
Retinal Implant ◽  
Retinal Tissue ◽  
Novel Approach ◽  
Implant System

This paper aims to study and converse the theoretical model of neural stimulation implant electrodes with the electrochemical aspects of design. The study investigates the practically realizable hypothetical model of minimal invasive retinal implant (miRI) stimulating electrodes for restoring lost sight of patients blinded by degenerative retinal diseases. The basic elemental methods of charge injection by the stimulation electrode to tissue are pointed out.  A prologue on the developments of vision implants and electrode characteristics were presented. We communicated the most important factors considered in this design stage of modeling, such as electrode position, size, impedance, charge injection capability, temperature change of the targeted retinal tissue and it’s surrounding for vision implant system. In this design, a mathematical model is created to investigate for the all above said factors which influence implants positioned at internal surface of the retinal tissue. This investigation gives an initial step in design verification before the fabrication.  

Biomechanical Analysis of Normal, Injured and Implanted Shoulder Joint

2014 ◽  
Vol 1030-1032 ◽  
pp. 2309-2312
Author(s):  
Aydin Azizi ◽  
Ali Ashkzari
Keyword(s):  
Rotator Cuff ◽  
Range Of Motion ◽  
Shoulder Arthroplasty ◽  
Shoulder Joint ◽  
Glenohumeral Joint ◽  
Total Shoulder Arthroplasty ◽  
Biomechanical Analysis ◽  
Collateral Ligaments ◽  
Degree Of Stability ◽  
High Degree

The biomechanics of the glenohumeral joint depend on the interaction of both static and dynamic stabilizing structures. The combined effect of these stabilizers is to support the multiple degrees of motion within the glenohumeral joint. Total shoulder arthroplasty requires release of contracted tissues, repair of rotator cuff defects, reconstruction of normal skeletal anatomy with proper sizing, and positioning of components. Arthroplasty of the shoulder is unlike arthroplasty of the hinge joints when the collateral ligaments afford a high degree of stability and is even distinct from the hip when bony conformity is large and range of motion is less. The goal of this paper is biomechanical analyses of normal, injured and implanted shoulder joint.

scholarly journals Risk Management Framework for Nano-Biomaterials Used in Medical Devices and Advanced Therapy Medicinal Products

Materials ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 4532 ◽  
Author(s):  
Elisa Giubilato ◽  
Virginia Cazzagon ◽  
Mónica J. B. Amorim ◽  
Magda Blosi ◽  
Jacques Bouillard ◽  
...  
Keyword(s):  
Risk Management ◽  
Medical Devices ◽  
Medical Diagnostics ◽  
Life Cycles ◽  
Environmental Risks ◽  
Medicinal Products ◽  
Management Framework ◽  
Advanced Therapy Medicinal Products ◽  
Risk Management Framework ◽  
Advanced Therapy

The convergence of nanotechnology and biotechnology has led to substantial advancements in nano-biomaterials (NBMs) used in medical devices (MD) and advanced therapy medicinal products (ATMP). However, there are concerns that applications of NBMs for medical diagnostics, therapeutics and regenerative medicine could also pose health and/or environmental risks since the current understanding of their safety is incomplete. A scientific strategy is therefore needed to assess all risks emerging along the life cycles of these products. To address this need, an overarching risk management framework (RMF) for NBMs used in MD and ATMP is presented in this paper, as a result of a collaborative effort of a team of experts within the EU Project BIORIMA and with relevant inputs from external stakeholders. The framework, in line with current regulatory requirements, is designed according to state-of-the-art approaches to risk assessment and management of both nanomaterials and biomaterials. The collection/generation of data for NBMs safety assessment is based on innovative integrated approaches to testing and assessment (IATA). The framework can support stakeholders (e.g., manufacturers, regulators, consultants) in systematically assessing not only patient safety but also occupational (including healthcare workers) and environmental risks along the life cycle of MD and ATMP. The outputs of the framework enable the user to identify suitable safe(r)-by-design alternatives and/or risk management measures and to compare the risks of NBMs to their (clinical) benefits, based on efficacy, quality and cost criteria, in order to inform robust risk management decision-making.

High Throuput Fluidic PCBs for Medical Devices

2011 ◽  
Vol 2011 (DPC) ◽  
pp. 000539-000554
Author(s):  
Stefan Gassmann ◽  
Lienhard Pagel
Keyword(s):  
Medical Devices ◽  
Printed Circuit Boards ◽  
Research Area ◽  
Minimal Invasive ◽  
Low Flow ◽  
Electronic Systems ◽  
Circuit Boards ◽  
Fluidic Devices ◽  
Conventional Technology ◽  
New Research

Printed circuit boards (PCBs) perform normally wiring, holding and cooling tasks in electronic systems. But with the request for integration of more and more functionality in the devices the PCBs have to take over more and more tasks in a system and will become a functional device and not only the carrier for electronic devices. One of these functions can be fluidics. The usage of PCBs for micro fluidic devices such as pumps and sensors was already reported. In this talk a new research area of the fluidic PCB group at the University of Rostock is presented: The usage of a fluidic PCB technology for the realization of medical fluidic devices with high throughput. The problems to overcome are the creation of high pressure proof channels with a low flow resistance and of course the biocompatibility. In the talk a medical device developed in such a technology will be described. It is a support device for the minimal invasive surgery which has to regulate the pressure in the pneumoperitonaeum, a so called insufflator. For this device flow rates of up to 45l/min CO2 has to deliver and the channel must withstand a pressure of up to 3.5 Bar. The focus in the talk will be the technological challenge of building pressure proof channels in the PCB. The requirements for the usage in medical devices will be explicitly described and the measurement results will be demonstrated. As a conclusion a comparison to a device build in a conventional technology device is given. The criterias are the functional parameters and the production and maintainance costs.

scholarly journals Regulation of medical diagnostics and medical devices in the East African community partner states

2014 ◽  
Vol 14 (1) ◽  
Author(s):  
Simon Peter Rugera ◽  
Ruth McNerney ◽  
Albert K Poon ◽  
Gladys Akimana ◽  
Rehema Forgen Mariki ◽  
...  
Keyword(s):  
Medical Devices ◽  
Medical Diagnostics ◽  
Community Partner ◽  
East African ◽  
East African Community ◽  
African Community

Medical devices biomaterials – A review

2019 ◽  
Vol 234 (1) ◽  
pp. 218-228 ◽  
Author(s):  
AJ Festas ◽  
A Ramos ◽  
JP Davim
Keyword(s):  
Health Care ◽  
Life Expectancy ◽  
Medical Device ◽  
Population Health ◽  
Medical Devices ◽  
Methods And Techniques ◽  
Manufacturing Methods ◽  
Proper Material ◽  
Care Demands ◽  
Metal Polymer

Due to the increase in the life expectancy of world’s population, health care demands in terms of quality and accessibility are higher than ever before. Concerning the manufacturing of medical devices, the development of new biomaterials, new manufacturing methods and techniques have always been on researchers focus. In the development of a medical device, the choice of the proper material to be used is of the most importance, since its ability and capacity to fulfil the expected function will determine the success of the medical device itself. This work aims to do a review of those that are the most commonly used biomaterials. After an explanation on what are biomaterials and what defines them, a more in-depth approach is presented to each of the four major types of biomaterials: metal, polymer, ceramic, and composites, where their main characteristics and preferred applications in the area of medical devices are described.

scholarly journals БІОМОРФОЛОГІЧНІ ОСОБЛИВОСТІ СКЕЛЕТНИХ ЕЛЕМЕНТІВ ПЛЕЧОВОГО СУГЛОБА ПІНГВІНА ГУМБАЛЬТА

2016 ◽  
Vol 18 (2(66)) ◽  
pp. 136-140
Author(s):  
O.O. Melnyk ◽  
M.V. Melnyk ◽  
W. Kinda ◽  
D. Kubiak-Nowak
Keyword(s):  
Shoulder Joint ◽  
Bird Species ◽  
Proximal Part ◽  
Shoulder Girdle ◽  
Structural Features ◽  
Caudal Part ◽  
Natural Laws ◽  
Skeletal Structures ◽  
High Degree ◽  
Humboldt Penguin

The article presents the results and analysis of osteometric research of skeletal structures of the shoulder joint of Humboldt penguin (Spheniscus humboldti). Statistical analysis of the obtained results was made and the percentage ratio of the skeletal structures of the shoulder joint of Humboldt penguin was determined. Certain species features and natural laws were established that point out specific biomorphological adaptations to the «underwater flight». In particular clavicles that accrete into a «fork» are not attached to the sternum. This allowed us to understand certain patterns of their development.The shoulder joint of birds is a complex joint that is formed by bones of shoulder girdle and humerus. A coracoid is the most developed bone of the shoulder girdle. It should be noted that coracoid of birds is characterized by a high degree of development, which is caused by the development of muscles of wing that are fixed to it. The proximal end of coracoid forms a so-called acro-coracoidal process, to which a collarbone is fixed. The distal end of coracoid is connected to sternum, thus forming a coraco-sternal joint that is characterized by low motility.It was found that flipper form of thoracic limb and certain structural features of skeletal structures of the shoulder joint of Sphenisciformes, in particular flattened humerus, caudaly extended scapula, powerful coracoid and furcula are apparently caused by the influence of increased functional loads that have arisen as a result of adaptation to perform rowing functions by wing during rapid and deep swimming under water, because movement under water requires more physical activity.Penguins  (Humboldt penguin) are characterized by greatly elongated and expanded in its caudal part scapula (Annex A-3, Fig. 3.5). Its length relatively to the length of the humerus is 150%, and in the widest part - more than 20% of the scapula length. It should be noted that in caudal part of scapula is small, not ossified area that is covered with connective tissue membrane. In studied species acromion of scapula is directed upwards. Furcula in penguin is much expanded in its proximal part. Coracoid is like a column and elongated. Its length relatively to the length of the humerus is 111.1%. Underlying of coracoid is relatively narrow. Width of the coracoid base relatively to the lengths is 29.1%. On the lateral edge of coracoid base is a small appendage, directed proximally. In addition, the lateral edges of coracoid in studied bird species has so-called coracoid window. This window is formed as a result of coracoid ligament ossification. The proximal end of coracoid is bended laterally. Humerus in Humboldt penguin has a flattened shape. Its length relatively to the total length of the wing is 33.5%. Pneumatic fossa is large enough.

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