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Testing of strength of extracorporeal blood circulation connections
Pospíšil, Luděk ; Friedel, Daniel (referee) ; Nevrlý, Josef (advisor)
This thesis deals with testing the connection strength between the cannula and tubing for extracorporeal blood circulation. The first part gives information about tubing, cannulas and instruments in extracorporeal blood circuit. The following is the issue of connection strength, design and assembly of measuring stand including a measurement of the required parameters for different conditions. The second part deals with the evaluation of the measured data. The outcome of this work is measuring breakaway strength on pressure and temperature of the flowing medium and the size of the tensile forces in the axis of the tube over time, analysis of results and comparison with materials from supplier cannulas and tubing.
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Design of entrance ramp for handicapped people to city buses
Pospíšil, Luděk ; Maňas, Pavel (referee) ; Dvořáček, Jiří (advisor)
Diploma thesis deals with the design of the automatically controlled ramp for the boarding of physically disabled people in city buses. The initial research section deals with the regulations and directives that must be respected in the design, the issue of wheelchair mobility and the analysis of design considered elements. In the second part the thesis goes to the chosen design solution. The design input parameters are the height of the ramp cassette, the slope of the ramp when boarding and the width of the boarding platform. The platform is extended by a pair of pneumatic cylinders along with a scissor mechanism guided in a linear ball guide. The boarding platform is made of an aluminium honeycomb panel which strength is verified by analytical calculation. At the front edge, the boarding platform is equipped with a pressure-sensitive edge The ramp cassette is made up of a welded frame of steel profiles and subjected to stress strain analysis. The thesis is accompanied by complete drawing documentation.
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Design of entrance ramp for handicapped people to city buses
Pospíšil, Luděk ; Maňas, Pavel (referee) ; Dvořáček, Jiří (advisor)
Diploma thesis deals with the design of the automatically controlled ramp for the boarding of physically disabled people in city buses. The initial research section deals with the regulations and directives that must be respected in the design, the issue of wheelchair mobility and the analysis of design considered elements. In the second part the thesis goes to the chosen design solution. The design input parameters are the height of the ramp cassette, the slope of the ramp when boarding and the width of the boarding platform. The platform is extended by a pair of pneumatic cylinders along with a scissor mechanism guided in a linear ball guide. The boarding platform is made of an aluminium honeycomb panel which strength is verified by analytical calculation. At the front edge, the boarding platform is equipped with a pressure-sensitive edge The ramp cassette is made up of a welded frame of steel profiles and subjected to stress strain analysis. The thesis is accompanied by complete drawing documentation.
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Testing of strength of extracorporeal blood circulation connections
Pospíšil, Luděk ; Friedel, Daniel (referee) ; Nevrlý, Josef (advisor)
This thesis deals with testing the connection strength between the cannula and tubing for extracorporeal blood circulation. The first part gives information about tubing, cannulas and instruments in extracorporeal blood circuit. The following is the issue of connection strength, design and assembly of measuring stand including a measurement of the required parameters for different conditions. The second part deals with the evaluation of the measured data. The outcome of this work is measuring breakaway strength on pressure and temperature of the flowing medium and the size of the tensile forces in the axis of the tube over time, analysis of results and comparison with materials from supplier cannulas and tubing.
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