Needle Alignment
Needle Alignment - Related Videos
09:51
Intraosseous Needle Placement
0 Views •
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...
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...
11:36
Assembly, Loading, and Alignment of an Analytical Ultracentrifuge Sample Cell
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Cited by 21 •
2009
The analytical ultracentrifuge (AUC) sample cell holds sample and reference buffer and during experiments and is exposed to high vacuum and rotor speeds up to 60,000 rpm. This video will demonstrate the rigorous attention to detail necessary for assembly, loading and alignment of this very important component of an AUC experiment.
01:17
Design Example: Alignment of a Road Line Using GIS
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2025
The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...
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
Maintaining alignment keeps the needle shaft and tip within the ultrasound visualization plane. This allows the clinician to monitor the advancing needle in relation to the intended target and nearby anatomy rather than relying only on its expected path. Continuous visualization supports trajectory correction during the procedure and helps reduce unintended contact with sensitive structures.
Alignment provides a controlled trajectory toward the intended target while preserving awareness of adjacent anatomical structures. When the needle remains visible in the imaging plane, its position can be assessed as it advances, helping the clinician judge whether the path remains appropriate. This spatial control is important when sensitive structures lie near the procedural target.
Proximity alone does not show whether the needle is following the intended path or whether its tip remains safely positioned. Accurate alignment combines the needle’s trajectory with the target location, surrounding anatomy, and, when applicable, the ultrasound visualization plane. That combined assessment supports more precise advancement than estimating needle position from location alone.
The clinician first considers the intended target, nearby anatomy, and the ultrasound visualization plane. The needle is then positioned so its shaft and tip can be seen in relation to the target, followed by controlled advancement while monitoring that relationship. If the trajectory no longer appears appropriate, alignment can be adjusted before proceeding.
Careful alignment supports a range of minimally invasive procedures, including regional anesthesia, vascular access, biopsies, and injections. In each setting, the technique helps relate the advancing needle to the intended target and nearby structures. Its value is especially clear when ultrasound guidance is used to visualize the needle during tissue access or delivery of a treatment.
Accurate alignment can improve procedural precision by helping the needle follow an intended trajectory toward the target. It may also reduce repeated needle passes, which supports a more controlled procedure. By helping clinicians avoid sensitive structures and maintain target awareness, the technique contributes to safer and more effective patient care across several medical applications.