Direct Segmental Delivery
Direct Segmental Delivery - Related Videos
09:22
Method of Direct Segmental Intra-hepatic Delivery Using a Rat Liver Hilar Clamp Model
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Cited by 1 •
2017
A unique rat liver hilar clamp model was developed for studying the impact of pharmacologic molecules in ameliorating ischemia-reperfusion injury. This model includes direct cannulation of the portal supply to the ischemic liver segment via a branch of the portal vein, allowing for direct hepatic delivery.
14:55
Direct Intraventricular Delivery of Drugs to the Rodent Central Nervous System
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Cited by 172 •
2013
We describe a method to target drugs to the central nervous system by either implanting a catheter or performing a bolus injection into the right lateral ventricle in mice. We focus specifically on the delivery of antisense oligonucleotides. This technique is readily adaptable to other drugs and to rats.
11:18
Direct Drug Delivery to Kidney via the Renal Artery
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2021
This manuscript describes a method for targeted delivery to a single kidney via a catheter placed in the infrarenal abdominal aorta in the mouse.
08:52
Direct Infusion Device for Molecule Delivery in Plants
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Cited by 1 •
2023
This manuscript describes a novel direct plant infusion device for screening the effectiveness of molecules against the bacteria (Candidatus Liberibacter asiaticus) or its insect vector (Diaphorina citri, Kuwayama) that, in combination, are associated with Huanglongbing citrus disease.
08:25
Heterotopic Mucosal Engrafting Procedure for Direct Drug Delivery to the Brain in Mice
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Cited by 5 •
2014
A mouse model of human endoscopic skull base reconstruction has been developed that creates a semipermeable interface between the brain and nose using nasal mucosal grafts. This method allows researchers to study delivery to the central nervous system of high molecular weight therapeutics which are otherwise excluded by the blood-brain barrier when administered systemically.
FAQs
The approach relies on placing the therapeutic agent within or near the intended segment, so the treated tissue receives the primary exposure. Its effectiveness depends on the relationship between the delivery location, the selected agent, and the target anatomy. This regional concentration can support treatment goals while limiting distribution to areas outside the intended segment.
Anatomical location, delivery route, placement accuracy, therapeutic agent, and dose all influence regional treatment. Targeting may use an injection, catheter-based administration, or another site-specific route, depending on access to the selected organ, tissue, or neural segment. These variables determine how closely treatment aligns with the intended site and how much reaches non-target regions.
Broad systemic treatment distributes an agent throughout the body, whereas segmental delivery prioritizes a defined anatomical region. The localized strategy is especially relevant when clinicians need precise dosing, access to a difficult-to-reach site, or reduced exposure outside the treatment area. It therefore changes the distribution pattern rather than simply changing the therapeutic agent itself.
Some therapeutic goals involve a discrete neural segment, organ, or tissue that may not be adequately addressed by broad distribution alone. Delivering an intervention near the selected region creates a route for more focused treatment design. This is relevant in medicine because regional access can support site-specific therapy while reducing reliance on exposure across unrelated anatomical areas.
Planning begins by identifying the anatomical segment and defining the intended treatment site. The delivery route is then selected, such as targeted injection or catheter-based administration, followed by placement of the therapeutic agent within or adjacent to that region. The procedure is designed around the desired local exposure, dosing needs, and reduction of non-target distribution.
The source describes therapeutic agents that may include drugs, biologics, or other interventions, together with site-specific routes such as targeted injection and catheter-based administration. The appropriate combination depends on the selected anatomy and access requirements. These options provide flexibility for treating organs, tissues, or neural segments without assuming that one delivery format suits every target.
Regional therapy may be considered when precise dosing is important, when limiting systemic effects is a priority, or when the intended site is difficult to reach through broad distribution. Direct Segmental Delivery can help align treatment with a selected organ, tissue, or neural segment, making it relevant to treatment designs that emphasize anatomical specificity.
Evaluation can focus on whether the therapeutic agent reached the intended anatomical segment, whether treatment remained sufficiently localized, and how much exposure occurred in non-target regions. Researchers may also consider whether the chosen route and placement supported the intended dosing strategy. These observations help assess the practicality and precision of the treatment design in medicine.