Sheep Carotid Model
Sheep Carotid Model - Related Videos
13:45
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Cited by 1 •
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This article explains a new animal model designed for testing suburethral graft materials. In this model, a mesh tape is implanted through a vaginal incision in ewes, and the animals are observed over a three-month period. This model is essential as it lays the foundation for experimental research on grafts.
05:23
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2026
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03:47
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04:28
Cannulation of the Carotid Artery in a Rat Model
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2025
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10:01
Modeling Brain Metastasis by Internal Carotid Artery Injection of Cancer Cells
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Cited by 8 •
2022
Brain metastasis is a cause of severe morbidity and mortality in cancer patients. Most brain metastasis mouse models are complicated by systemic metastases confounding analysis of mortality and therapeutic intervention outcomes. Presented here is a protocol for internal carotid injection of cancer cells that produces consistent intracranial tumors with minimal systemic tumors.
FAQs
An implanted construct remains subject to blood flow and vessel mechanics within a living artery, rather than being evaluated only under simplified laboratory conditions. These forces interact with the device and surrounding tissue over time, enabling researchers to examine how design choices affect patency, thrombosis, healing, and remodeling. This supports bioengineering decisions about performance in physiologically relevant conditions.
Patency, thrombosis, healing, and remodeling provide complementary measures of device performance. Patency indicates whether blood flow remains unobstructed, while thrombosis identifies clot-related complications. Healing and remodeling show how the host tissue responds and changes around the implant. Considering these outcomes together helps distinguish short-term function from broader biological compatibility and longer-term limitations.
The sheep carotid artery provides vessel size and anatomy that support evaluation of engineered grafts, drug-delivery systems, and endovascular technologies in a living vascular setting. This geometry helps connect device design with blood-flow behavior, vessel mechanics, and tissue responses. As a result, researchers can assess safety and performance before considering clinical translation.
A study begins with surgical access to the sheep carotid artery, followed by implantation of the selected graft, stent, catheter, or other construct. Researchers then monitor the vessel and implant over time while assessing blood flow, vessel mechanics, and host tissue responses. The resulting observations are related to patency, thrombosis, healing, remodeling, safety, and performance.
The model can support testing of engineered vascular grafts, stents, catheters, drug-delivery systems, and other cardiovascular constructs. Its value lies in placing each design within a functioning vessel, where blood flow and tissue interaction can influence results. Bioengineers can therefore compare how different constructs perform and how their materials or configurations affect vascular outcomes.
Researchers may choose the Sheep Carotid Model when a design requires evaluation in a living vascular environment before clinical translation. It is particularly relevant for studying safety, performance, patency, thrombosis, healing, and remodeling of grafts or endovascular technologies. Longitudinal monitoring also helps reveal changes that a single early assessment might not capture.