Hem-o-lok Clamps

Hem-o-lok clamps are nonabsorbable polymer locking clips used in surgery to ligate and occlude blood vessels, ducts, and other tubular structures, helping control flow without sutures. Applied with a dedicated instrument, the clip closes around the target structure and its interlocking jaws and teeth maintain compression, while a locking mechanism helps prevent release during manipulation. In medicine, Hem-o-lok clamps support open and minimally invasive procedures such as laparoscopic cholecystectomy, nephrectomy, and prostatectomy. Their radiolucent polymer construction and controlled application can improve operative visibility and efficiency, although correct sizing, placement, and secure tissue capture are essential for reliable hemostasis.

Hem-o-lok Clamps - Related Videos

Education

JoVE Science Education - Clinical Skills

Central Venous Access Device Dressing Change

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2023

Source: Madeline Lassche, MSNEd, RN and Katie Baraki, MSN, RN, College of Nursing, University of Utah, UT Central venous access devices (CVAD), commonly known as central lines or central catheters, are large-bore intravenous (IV) catheters that are introduced into the central circulation. Typically, CVADs terminate in the superior vena cava, just outside of the right atrium of the heart, but they may also terminate in any one of the great veins (i.e., aorta, inferior vena cava, brachiocephalic...

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.

Research

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Hyperinsulinemic-euglycemic Clamps in Conscious, Unrestrained Mice

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Cited by 150 •

2011

The hyperinsulinemic-euglycemic clamp, or insulin clamp, is the gold standard for assessing insulin action in vivo. A method for performing insulin clamps in mice is described. This includes a method for arterial catheterization that permits experiments to be performed in conscious, unrestrained mice with minimal stress.

Hyperglycemic Clamp and Hypoglycemic Clamp in Conscious Mice

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Cited by 4 •

2024

A hyperglycemic clamp is used for measuring insulin release with a maintained higher blood glucose concentration. A hypoglycemic clamp is for measuring glucose production induced by counter-regulatory responses. Both methods use the same surgical procedure. Here, we present a clamp technique to assess systemic glucose metabolism.

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.

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