Needle Insertion
Needle Insertion - Related Videos
02:58
Laser Doppler Needle Probe Insertion: A Technique for Real-time Quantification of Blood Flow within the Spinal Cord in a Porcine Model
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2025
This video demonstrates the placement of a laser Doppler needle probe in the spinal cord of a porcine model. This helps in the continuous quantification of blood supply to the spinal cord, an important assessment in spinal cord injury.
09:51
Intraosseous Needle Placement
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2023
Source: Julianna Jung, MD, FACEP, Associate Professor of Emergency Medicine, The Johns Hopkins University School of Medicine, Maryland, USA For unstable patients requiring urgent administration of medications, fluids, or blood products, establishing vascular access quickly is essential. However, there are many factors that can complicate placement of a peripheral intravenous cannula (PIV), and it is extremely common for PIV attempts to fail. PIV placement may be technically challenging in small...
11:39
Peripheral Intravenous Catheter Insertion
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2023
Source: Madeline Lassche, MSNEd, RN and Katie Baraki, MSN, RN, College of Nursing, University of Utah, UT The purpose of peripheral intravenous catheter (PIV) insertion is to infuse medications, perform intravenous (IV) fluid therapy, or inject radioactive tracers for special examination procedures. Placing a PIV is an invasive procedure and requires the use of an aseptic, no-touch technique. Common IV venipuncture sites are the arms and hands in adults and the feet in children. According to...
08:25
Needle Thoracostomy
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2015
Source: Rachel Liu, BAO, MBBCh, Emergency Medicine, Yale School of Medicine, New Haven, Connecticut, USA A tension pneumothorax is a life-threatening situation in which excess air is introduced into the pleural space surrounding the lung, either through trauma to the chest cavity or as a spontaneous leak of air from the lung itself. Air trapped within the pleural space causes separation of the lung from the chest wall, disrupting normal breathing mechanisms. Pneumothorax may be small without...
10:06
Personalized Needles for Microinjections in the Rodent Brain
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Cited by 3 •
2018
We describe here a protocol for microinjection in the rodent brain that uses quartz needles. These needles do not produce detectable tissue damage and ensure reliable delivery even in deep regions. Moreover, they can be adapted to research needs by personalized designs and can be re-used.
FAQs
Needle insertion force is shaped by both the needle and the tissue. Geometry, stiffness, and bevel determine how the advancing needle interacts with tissue resistance and deformation, while the chosen trajectory and depth affect the mechanical demands of placement. Measuring or controlling these factors helps bioengineers understand why insertion may vary and supports more predictable targeting.
Tissue motion can shift the intended target as the needle advances, so accurate placement requires more than setting a straight path. Bioengineers therefore consider motion alongside insertion force, trajectory, and depth when developing robotic or image-guided systems. Accounting for these coupled variables can improve targeting accuracy and help limit unintended tissue disturbance during procedures.
The bevel is one of the needle features that directly influences tissue interaction during advancement. Because the bevel works together with geometry and stiffness, changing it can alter the resistance and deformation encountered along the path. Studying this relationship helps engineers compare needle designs and select configurations intended to support accurate placement with less trauma.
A bioengineering workflow for needle insertion typically controls four linked elements: insertion force, trajectory, depth, and tissue motion. The operator or system advances the needle along the planned path while monitoring these variables and adjusting placement as needed. Robotic assistance or image guidance can provide additional control, particularly when the target location or tissue response makes manual placement less predictable.
Researchers apply Needle insertion studies when designing or evaluating procedures that require access to a targeted biological site. Relevant use cases include injections, biopsies, catheter placement, and emerging minimally invasive therapies. The same analysis can examine whether a needle reaches the intended location while limiting tissue disturbance, making it useful for comparing techniques, devices, and control strategies.
In bioengineering, needle insertion links tissue mechanics with device and system design. Analysis of force, deformation, and motion can inform safer needle designs, robotic control, image-guided placement, and predictive models of tissue response. These outputs connect a local insertion event to broader engineering goals: improved accuracy, reduced pain and trauma, and more reliable minimally invasive access.