Vascular Access Sheathes
Vascular Access Sheathes - Related Videos
05:16
An Ultrasound-Guided Vascular Access Procedure in an Anesthetized Pig
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2026
Source:Rui Cerqueira1,2, Liliana Costa1, André Leite-Moreira1, Adelino Leite-Moreira1,2, André Lourenço1, Pedro Mendes-Ferreira11Department of Surgery and Physiology, Faculty of Medicine of the University of Porto.2Department of Cardiothoracic Surgery, Hospital Universitário de São João.The video demonstrates a procedure for obtaining vascular access in an anesthetized pig using ultrasound guidance. After disinfecting the site and administering local anesthesia, an ultrasound probe is used to...
08:51
Hickman Catheter Use for Long-Term Vascular Access in a Preclinical Swine Model
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2023
A reliable and reproducible approach for the insertion and maintenance of a tunneled Hickman catheter for long-term vascular access in swine is described. Placement of a central venous catheter allows for convenient daily sampling of whole blood from awake animals and intravenous administration of medication and fluids.
06:04
Upper-extremity Approach for Secondary Access in Transfemoral Transcatheter Aortic Valve Implantation
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Cited by 1 •
2025
An upper-extremity approach for secondary access during transfemoral transcatheter aortic valve implantation is associated with fewer secondary access site-related bleeding complications and reduces time to mobilization in patients requiring extended pacing. This protocol aims to provide an extensive overview of the upper-extremity approach and guide operators in adopting this methodology.
14:37
Accessibility to Clinical Care for People who use Wheelchairs
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2023
Source: Yetsa Tuakli-Wosornu1,2, Jaideep Talwalkar1; 1Yale School of Medicine, 2University of Pittsburgh In the United States, 25% of the general population suffers from one or another type of disability. Ambulatory disabilities, or mobility impairments, represent the most common subcategory, comprising 14% of the country's populace. Different mobility-assistive devices, ranging from canes to scooters, enable increased independence and improved quality of life for those suffering from mobility...
08:22
Microfluidic Bioprinting for Engineering Vascularized Tissues and Organoids
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Cited by 37 •
2017
We provide a generalized protocol based on a microfluidic bioprinting strategy for engineering a microfibrous vascular bed, where a secondary cell type could be further seeded into the interstitial space of this microfibrous structure to generate vascularized tissues and organoids.
FAQs
Sheath size and design determine which guidewires, catheters, and other endovascular instruments can pass through the access pathway. Placement also affects procedural control because the device must remain stable while instruments are introduced or exchanged. Selecting an appropriate configuration therefore supports the intended intervention and helps clinicians manage access-site considerations during the procedure.
The hemostatic valve helps maintain vascular access while clinicians manipulate or exchange instruments through the sheath. Its function limits blood loss and air entry during these movements, allowing the access pathway to remain usable without repeatedly puncturing the vessel. This supports controlled catheter or guidewire handling throughout minimally invasive vascular procedures.
The guidewire provides the route over which the sheath is advanced after initial needle access and vessel dilation. This sequence helps establish a controlled pathway into the vessel before larger instruments are introduced. Once positioned, the sheath maintains access so guidewires, catheters, and other devices can be inserted or exchanged as the procedure progresses.
Placement typically begins with needle access to the blood vessel, followed by advancement of a guidewire and dilation of the vessel entry site. The sheath is then positioned over the guidewire, creating a stable route for endovascular instruments. Its outer cannula and hemostatic valve remain available during subsequent catheter or device manipulation.
Vascular access sheaths support angiography, cardiac catheterization, vascular interventions, and other minimally invasive procedures. In each setting, the sheath provides a sustained route for introducing and exchanging specialized instruments rather than requiring separate vascular punctures for every device. Its use is especially relevant when procedural control and repeated instrument access are needed.
Sheath placement influences access-site management because the device occupies and stabilizes the vessel entry pathway during the intervention. Its design and size affect procedural control, while the hemostatic valve helps limit blood loss and air entry during manipulation. These features make sheath selection and positioning relevant when clinicians monitor and manage access-site complications.