Temporary Vessel Clamps
Temporary Vessel Clamps - Related Videos
03:47
Developing an Experimental Aneurysm Model in a Rabbit Using an Elastase-Treated Vessel Pouch
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2025
Source: Wanderer, S., et al. Arterial Pouch Microsurgical Bifurcation Aneurysm Model in the Rabbit. J. Vis. Exp. (2020)This video demonstrates the creation of an experimental aneurysm model in a rabbit using an elastase-treated vessel pouch. After excising a segment of the right CCA, the pouch is treated with elastase, then sutured to the left CCA to restore blood flow. The resulting stress on the weakened pouch walls induces aneurysm formation.
09:43
Patch Clamp Electrophysiology
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2023
Neuron cell membranes are populated with ion channels that control the movement of charge into and out of the cell, thereby regulating neuron firing. One extremely useful technique for investigating the biophysical properties of these channels is called patch clamp recording. In this method, neuroscientists place a polished glass micropipette against a cell and apply suction to form a high resistance seal. This process isolates a small “patch” of membrane that contains one or more ion channels.
13:10
Stability of Floating Vessels
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2023
Source: Alexander S Rattner and Kevin Rao Li Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, PA The objective of this experiment is to demonstrate the phenomenon of stability of floating vessels - the ability to self-right when rolled over to the side by some external force. Careful design of hull shapes and internal mass distribution enables seagoing vessels to be stable with low drafts (submerged depth of hull), improving vessel...
06:38
Mechanical Vessel Injury in Zebrafish Embryos
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Cited by 5 •
2015
This article describes a method for creating a mechanical vessel injury in zebrafish embryos. This injury model provides a platform for studying hemostasis, injury-related inflammation, and wound healing in an organism ideally suited for real-time microscopy.
11:12
Hyperinsulinemic-Euglycemic Clamp in the Conscious Rat
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Cited by 34 •
2011
The hyperinsulinemic-euglycemic clamp is the "gold standard" for the assessment of insulin action. Insulin is infused at a constant rate stimulating glucose uptake. The amount of exogenous glucose infused to counter this drop is indicative of insulin sensitivity. Here the procedure is performed on a conscious, unrestrained rat.
FAQs
Atraumatic jaws distribute pressure across the vessel rather than concentrating force at a single point. Calibrated pressure helps compress the lumen sufficiently for surgical control while limiting unnecessary injury to the vessel wall. This balance matters in neurosurgery because the vessel must remain suitable for release and continued blood flow after the operative task is completed.
Both excessive pressure and prolonged occlusion can reduce blood flow beyond the clamp. In cerebral procedures, that reduction may compromise downstream tissue and increase ischemic risk. Surgeons therefore consider how firmly the vessel is compressed and how long control is required, aiming to maintain cerebral perfusion while obtaining the vascular control needed for the intervention.
Selection and placement depend on the need for temporary occlusion, the vessel’s location, and the surrounding critical brain structures. The clamp must provide adequate control without unnecessary tissue or vessel injury. Correct positioning, appropriate pressure, and limited duration work together, so clamp choice cannot be separated from the anatomy and surgical objective.
The surgeon selects an appropriate clamp, positions its atraumatic jaws on the target vessel, and applies controlled pressure to limit blood flow during the operative portion requiring a bloodless field. After the repair or aneurysm treatment step is complete, the clamp is released so flow can resume. Pressure, placement, and duration remain important throughout the sequence.
They are used when surgeons need short-term control of bleeding or blood flow during procedures such as aneurysm treatment and vascular repair. Temporary occlusion improves visibility while work proceeds near critical brain structures. The instrument is especially relevant when the vessel must later be released, making preservation of the vessel an important procedural goal.
By limiting blood flow at the operative site, the clamps help create a bloodless field and improve visualization of delicate anatomy. This can support precise work during cerebrovascular procedures, but the benefit depends on avoiding excessive compression or prolonged occlusion. Maintaining cerebral perfusion downstream remains central to reducing the risk of ischemic injury.