Technical feasibility


PARTEA A: Identificarea rezultatului cercetării-deZvoltării (CD)

·         The project team

             Echipa proiectului

Advisor’s Name:Nume: Department of Technologies and Materials

Project: Complex 3D Models Used in Orthopedics of the Human Elbow

Phone:Telefon:  +40.740.163396
Expecting date of valorization plan submission:Data aşteptată pentru trimiterea planului de valorizare  07.02.2012

·         Identification of R&D activity

Identificarea activităţii de cercetare-dezvoltare (CD)



Author of the R&D result:Autorul rezultatului CD:  Dr. Eng. Popa Dragos
Company or University:Companie sau Universitate:  UNIVERSITY OF  CRAIOVA, ROMANIA 
Phone:Telefon:  +40.752.073731
Sector:Domeniu:  ENG – Engineering
Type of the R&D result:Tipul rezultatului CD:  Virtual Model


Partea B: Planul de valorizare

SECTION I: Testing

SECŢIUNEA I: Testarea/încercarea



Has the R & D result been tested?A fost testat/încercat rezultatul CD?







The following question is replied according to the reply in question 1

Următoarea întrebare este formulată în legătură cu răspunsul la întrebarea 1


If yes

Dacă răspunsul a fost DA:



In what mode has the result been tested?•           Prototype

•           Pilot Application

•           Alpha/BETA testing

În ce mod a fost testat/încercat rezultatul?

•           Prototip

•           Aplicaţie Pilot

•           Incercare Alpha/BETA

1b. Please describe and discuss the testing resultsVa rugăm să descrieţi rezultatele testate/încercate


If no:

Dacă răspunsul a fost NU:


Describe what type of testing does the R&D result need?Descrieţi ce tip de testare/încercare necesită rezultatul CD?
Detailed commentComentariu detaliat


The overall aim of the research is to develop a complex 3D model used in orthopedics of human elbow.
To obtain bone cross sections it was used a type PHILIPS AURA CT tomographic unit. Components of bone scans (humerus, cubitus and radius) were achieved by full scan at distances of 5 mm, resulting in 147 images. Such images were drawn in AutoCAD and superimposed over the actual scans. These drawings were imported into SolidWorks, section by section, in parallel planes.

SolidWorks allowed us to obtain a “unification” solid used to analyze the kinematics of bone components.

1d. What is the time needed for testing?Care este perioada de timp necesară testări?
Time for testing, probing and homologation is estimated at 60 working days.
1e. What is the cost needed for testing?Care este costul necesar pentru testare?
The costs for working out the complex 3D model used in orthopedics of human elbow are estimated at Euro 2500. The costs related to testing, probing and homologation of functional model are estimated to be 1400 Euro.

SECTION 2: Current Stage of Development

SECŢIUNEA 2: Stadiul actual de dezvoltare



To what extent does the development team have technical resources for supporting the production of a new product? (Researchers, human resources, hardware, etc. )În ce măsură dispune echipa de resursele necesare pentru a asigura fabricarea noului produs? (Cercetători, resurse umane, hardware, etc.)
University of Craiova, a higher education institution with a specific structure of education, has managerial experience in scientific research performance, both fundamental and applied research in all areas, as well as, advice and expertise.
The research team includes experts recognized nationally and internationally, with significant results in modeling the biomechanics of the human body. A personal contribution refers to physical and mathematical modeling of biomechanical human arm subject to vibrations, and verification and validation of models.
Within the Faculty of Mechanics there are equipment and specialized software for structural and behavioral analyzing of models used to emphasize ability and methods to improve their performance, and functional validation of models.


What are the technical issues that need to be tackled for full deployment, if needed?Care sunt aspectele tehnice ce trebuie abordate pentru lansarea în fabricaţie, dacă sunt necesare?
For practical application of research results are required the next steps:
- Development of design concept and requirements;
- Experimental evaluation of the human elbow dynamics;
- Structural and behavioral analysis of models used;
- Working out, systematization and justification of a set of applicative biodynamic models;
- Functional validation of the proposed nonlinear models.


What additional technical resources are needed for the production of this new product?Ce resurse tehnice suplimentare sunt necesare pentru fabricarea acestui nou produs?
 For using complex 3D models in orthopedics of human elbow are required experimental tests carried out and developed in the virtual environment – on virtual prototypes by integrated assessment through virtual instrumentation done by specialized companies.



Overall assessment of the current stage of technical development.Evaluarea generală a stadiului actual de dezvoltare tehnică
Detailed commentComentariu detaliat


Using the computer in medical engineering is leading to an improvement in the creation of shapes, as it enables three-dimensional view of future products, before they can be manufactured. There are several ways of representing and modeling objects (graphical representation) in a computer, namely:
- Representation based essentially on the handling of points and curves;
- Representation of objects is reduced to flat and polygonal surfaces;
- Represented in two-dimensional system;
- Representation by volume method, which allows description of product by decomposition into elementary volumes  and recomposing them;
- Visualizing objects in three-dimensional system (holographic objects).

The proposed model defines the structure and association of elements (components) in a system, by specifying the interfaces (links) of elements with the outside. Combination of elements is made ​​along the links through unions (relationships).

SECTION 3: Deployment

SECŢIUNEA 3: Lansarea în fabricaţie


Define the demands for large scale production in terms ofDefiniţi cererea pentru producţia de masă în funcţie de:
  • Materials
  • Materiale
After creating and validating the experimental model, setting up all suppliers of materials, off they go to product manufacturing through rapid prototyping (3D printing).
Materials used: plastic (photopolymer).
  • technologies, tools, machineries
  • Tehnologii, utilaje, maşini
Technologies  required:
- Scanning technology
- Rapid PrototypingEquipment:
- PC;
- Scanner tomography;
- 3D Printer
  • Staff effort
  • Resurse umane
 Estimated human resource requirements for implementation of 3D model in human elbow orthopedics will be:
- staff to survey the market,
- staff for investment
- staff for operator’s training and
- staff for commercial activities, advertising and expertise.



SECTION 4: Overall Assessment

SECŢIUNEA 4: Evaluare generală


What is you overall assessment of the technical feasibility of the research result?Care este evaluarea generală a fezabilităţii tehnice pentru rezultatul CD?
Formulation and development of biomechanical models, theoretical and applied, for human elbow dynamics is based on two types of behavior: biological and mechanical. Thus, the biological models include dedicated elements to simulate more realistic the features and response of systems studied under the action of external stimuli.
From the mechanical point of view, it was outlined within the models the elastic-type  elements, which enable outlining facilitates the mechanical movement with all their specific characteristics.The models presented are based on visco-elastic type mechanical elements, with specific parameter values ​​taken from the biological features.

Assumed risks (technical, financial) related to 3D models design models used in orthopedics of human elbow, referring especially to the following types:
- Risks that may arise during design stage;
- Risks that may occur during the execution of the product (technological risk, cost overrun risk, the risk of subcontractors);
- Risks that may occur during operation of the product (the possibility of changing the value of Euro currency, changing economic circumstances, major legislative changes).

In conclusion, the project can be considered to have a low risk of technical terms.




Evaluare cantitativă (0-5)


Please put X as appropriate.

Vă rugăm să marcaţi cu X  punctajul considerat corespunzător


1 2 3 4 5
Adequacy of testing activity undertaken so farGradul de adecvare al activităţii de testare desfăşurate pănă în prezent X
Adequacy and availability of technical resources of the development teamGradul de adecvare şi disponibilitatea resurselor tehnice ale echipei X
Current development stageStadiul actual de dezvoltare X
Overall technical feasibilityFezabilitatea tehnică generală X



We agree that all informations contained in this form to be made public in the project „Inter-regional cooperation for valorization of research results – INTERVALUE”, by publication on the project website:

Suntem de acord ca informaţiile cuprinse în acest formular să fie făcute publice în cadrul proiectului „Inter-regional cooperation for valorization of research results – INTERVALUE”, prin publicarea lor pe site-ul proiectului, la adresa:

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