Venipuncture/cannulation physics

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In summary, the conversation discusses the challenges of venipuncture/cannulation in the medical field and the lack of tips for poking the vein. It mentions that a steeper angle reduces the amount of dermal tissue punctured and axial insertion force, while a shallow angle reduces the likelihood of the needle piercing through the other side of the vein. This is supported by a study on real-time needle steering in response to rolling vein deformation.
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VacuumAce
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I am not sure if any of guys are familiar with venipuncture/cannulation as it belongs to the medical field lol. The thing is I read a lot of tips/rules on them like how to find the veins etc. ,but ironically there are almost no tips on how to poke the vein other than saying that you need to poke at a 10 degree to 30 degree or 45 degree.(Veins roll a lot even if you anchor them before you poke) Is a higher angle easier to poke a vein or a lower angle,as in does it have more force applied to it or something?
 
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"Starting with a steeper angle reduces the amount of dermal tissue punctured by the needle and reduces the axial insertion force at the needle tip. And ending with a shallow angle reduces the likelihood that the needle tip pierces through the other side of the vein."

Real-time Needle Steering in Response to Rolling Vein Deformation by a 9-DOF Image-Guided Autonomous Venipuncture Robot
Alvin I. Chen, Max L. Balter, Timothy J. Maguire, and Martin L. Yarmush
Rep U S. 2015 Sep-Oct; 2015: 2633–2638. doi: 10.1109/IROS.2015.7353736

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4714798
 

FAQ: Venipuncture/cannulation physics

What is venipuncture/cannulation physics?

Venipuncture/cannulation physics is the study of the physical principles and mechanisms involved in the process of drawing blood or inserting a needle into a vein or artery.

Why is it important to understand venipuncture/cannulation physics?

Understanding venipuncture/cannulation physics is important for healthcare professionals who perform these procedures, as it can help them minimize patient discomfort and reduce the risk of complications such as bruising, bleeding, or infection.

What are the main factors that influence the success of venipuncture/cannulation?

The main factors that influence the success of venipuncture/cannulation include the size and depth of the vein or artery, the angle and direction of the needle insertion, and the pressure applied during the procedure.

How can I improve my technique for venipuncture/cannulation?

Improving technique for venipuncture/cannulation involves proper training, practice, and understanding of the anatomy and physiology of the circulatory system. It is also important to use appropriate equipment and to communicate effectively with the patient.

What are the potential risks associated with venipuncture/cannulation?

The potential risks associated with venipuncture/cannulation include bleeding, infection, nerve damage, and fainting. These risks can be minimized by following proper technique and using sterile equipment.

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