Podcast
Questions and Answers
Which material is commonly used to make shower curtains and flexible tubes?
Which material is commonly used to make shower curtains and flexible tubes?
What is the molecular structure of silicone rubber?
What is the molecular structure of silicone rubber?
Which type of tubing produces less hemolysis than PVC when occluded?
Which type of tubing produces less hemolysis than PVC when occluded?
Which type of coating can reduce the inflammatory response to foreign material in tubing?
Which type of coating can reduce the inflammatory response to foreign material in tubing?
Signup and view all the answers
Which type of tubing is made from a non-heparin-based biopassive polymer?
Which type of tubing is made from a non-heparin-based biopassive polymer?
Signup and view all the answers
Which factor should be considered when selecting the appropriate tubing size?
Which factor should be considered when selecting the appropriate tubing size?
Signup and view all the answers
What is the main advantage of using larger bore tubing?
What is the main advantage of using larger bore tubing?
Signup and view all the answers
Which material is the predominant tubing material used in cardiopulmonary bypass?
Which material is the predominant tubing material used in cardiopulmonary bypass?
Signup and view all the answers
What is the purpose of adding plasticizers to PVC tubing?
What is the purpose of adding plasticizers to PVC tubing?
Signup and view all the answers
How many substances have been tested for use as a polymer plasticizer?
How many substances have been tested for use as a polymer plasticizer?
Signup and view all the answers
Which family of polymer plasticizers is used for flexibility in plastics?
Which family of polymer plasticizers is used for flexibility in plastics?
Signup and view all the answers
What type of bonds does PVC have?
What type of bonds does PVC have?
Signup and view all the answers
What is the purpose of surface modifications in tubing used in the extracorporeal circuit?
What is the purpose of surface modifications in tubing used in the extracorporeal circuit?
Signup and view all the answers
Which of the following is NOT mentioned as an option for tubing material used in cardiopulmonary bypass?
Which of the following is NOT mentioned as an option for tubing material used in cardiopulmonary bypass?
Signup and view all the answers
Which material is commonly used for medical tubing?
Which material is commonly used for medical tubing?
Signup and view all the answers
What is the main purpose of clear tubing used in fluid delivery?
What is the main purpose of clear tubing used in fluid delivery?
Signup and view all the answers
Which method is used for the manufacture of plastic tubing that involves pulling reinforced fibers through a die?
Which method is used for the manufacture of plastic tubing that involves pulling reinforced fibers through a die?
Signup and view all the answers
What is the pressure rating of medical tubing?
What is the pressure rating of medical tubing?
Signup and view all the answers
What is the maximum vacuum rating of medical tubing?
What is the maximum vacuum rating of medical tubing?
Signup and view all the answers
What feature is important for medical tubing used in the extracorporeal circuit?
What feature is important for medical tubing used in the extracorporeal circuit?
Signup and view all the answers
Which material has worse form recovery (compression set) after being under load?
Which material has worse form recovery (compression set) after being under load?
Signup and view all the answers
Which of the following is true about minimum bend radius?
Which of the following is true about minimum bend radius?
Signup and view all the answers
What can happen if a tube is flexed too far?
What can happen if a tube is flexed too far?
Signup and view all the answers
What material are polycarbonate connectors made of?
What material are polycarbonate connectors made of?
Signup and view all the answers
What is the process of heating the tubing and placing it on the specified connection site called?
What is the process of heating the tubing and placing it on the specified connection site called?
Signup and view all the answers
What is the most common method of sterilizing tubing?
What is the most common method of sterilizing tubing?
Signup and view all the answers
What are the four essential parameters for Ethylene Oxide Sterilization?
What are the four essential parameters for Ethylene Oxide Sterilization?
Signup and view all the answers
What is the basic cycle of Ethylene Oxide Sterilization?
What is the basic cycle of Ethylene Oxide Sterilization?
Signup and view all the answers
What is the purpose of mechanical aeration in Ethylene Oxide Sterilization?
What is the purpose of mechanical aeration in Ethylene Oxide Sterilization?
Signup and view all the answers
What is Ethylene Oxide Sterilization best suited for?
What is Ethylene Oxide Sterilization best suited for?
Signup and view all the answers
Study Notes
Materials Used in Medical Tubing
- Silicone is commonly used to make shower curtains and flexible tubes.
- Silicone rubber has a molecular structure of Si-O-Si (silicon-oxygen-silicon).
Hemolysis and Tubing
- Tubing made from silicone produces less hemolysis than PVC when occluded.
- Coating with a non-thrombogenic material can reduce the inflammatory response to foreign material in tubing.
Types of Tubing
- Tubing made from a non-heparin-based biopassive polymer is an example of a biopassive tubing.
- Larger bore tubing is advantageous as it reduces pressure drop and increases flow rate.
Selection of Tubing Size
- Inner diameter and flow rate are important factors to consider when selecting the appropriate tubing size.
Material Properties
- PVC tubing requires the addition of plasticizers to make it flexible.
- Over 30,000 substances have been tested for use as a polymer plasticizer.
- Phthalates are a family of polymer plasticizers used for flexibility in plastics.
- PVC has polar bonds.
Surface Modifications
- Surface modifications in tubing used in the extracorporeal circuit are done to reduce thrombogenicity.
Manufacturing and Sterilization
- Pultrusion is a method used for the manufacture of plastic tubing that involves pulling reinforced fibers through a die.
- Medical tubing has a pressure rating of up to 1000 psi and a maximum vacuum rating of up to 29 inHg.
- Sterilization is essential for medical tubing, and the most common method is Ethylene Oxide Sterilization.
- The four essential parameters for Ethylene Oxide Sterilization are temperature, humidity, gas concentration, and time.
- The basic cycle of Ethylene Oxide Sterilization includes preconditioning, sterilization, and aeration.
- Mechanical aeration is used to remove ethylene oxide residues from the tubing.
- Ethylene Oxide Sterilization is best suited for heat-sensitive materials.
Other Facts
- Polycarbonate connectors are made of polycarbonate material.
- The process of heating the tubing and placing it on the specified connection site is called heat forming.
- Silicone tubing has worse form recovery (compression set) after being under load.
- Minimum bend radius is important for medical tubing used in the extracorporeal circuit to prevent kinking.
- Flexing a tube too far can cause kinking or cracking.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
This quiz tests your knowledge on selecting appropriate tubing sizes for arterial and venous perfusion, as well as cardioplegia administration and blood scavenging. Understand how factors like body surface area and cardiac index can guide tubing selection.
