Related Experiment Video
Updated: Nov 19, 2025
07:15
Robust Ligature-Induced Model of Murine Periodontitis for the Evaluation of Oral Neutrophils
Published on: January 21, 2020
11.9K
Colored ligature: Trivial but innovative modification.
Shigeomi Yokoya1, Akihiko Hino1, Hideki Oka1
1Department of Neurosurgery, Saiseikai Shiga Hospital, Imperial Gift Foundation Inc., Ritto, Shiga, Japan.
Surgical Neurology International
|January 27, 2021
Summary
Using different colored surgical ligatures simplifies vessel ligation and detachment. This method prevents thread mix-ups and speeds up entanglement resolution, enhancing surgical efficiency.
Area of Science:
- Surgical Techniques
- Medical Devices
Background:
- Vascular ligation is a critical surgical skill.
- Current methods using same-colored ligatures can lead to thread mix-ups and entanglement issues.
- These complications can hinder surgical efficiency and potentially complicate procedures.
Purpose of the Study:
- To introduce an improved method for vascular ligation using distinctively colored threads.
- To address and resolve the practical challenges associated with using identical ligatures.
Main Methods:
- The technique involves passing two differently colored threads behind the vessel requiring ligation.
- These distinct threads are then used for knot tying and vessel transection.
Main Results:
- The use of different colored ligatures allows for easy identification and grasping of individual threads.
- Entangled threads are more rapidly and easily unwound.
- The procedure facilitates clear visualization of the vessel between the ligatures before cutting.
Conclusions:
- Employing ligatures of different colors significantly enhances convenience and efficiency in surgical operating rooms.
- This simple modification improves the practical execution of vascular ligation procedures.
Related Concept Videos
00:43Complexometric Titration: Ligands
1.8K
Different monodentate and polydentate ligands are used as complexing agents in complexometric titration reactions. The formation of complexes by mono- and bidentate ligands involves two or more intermediate steps, limiting their use as complexing agents. In comparison, polydentate ligands can form complexes with metal ions in a single-step process, facilitating sharper end points. This means polydentate ligands, such as amino carboxylic acid derivatives, are most commonly employed in...
1.8K
02:51Metal-Ligand Bonds
22.8K
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
22.8K
00:39Complexometric Titration: Overview
9.6K
Complexometric titration involves the formation of a complex by reacting a metal ion with one or more ligands. A visual indicator often detects the end point of a complexometric titration. It is added to the metal solution before the titration, forming a stable metal–indicator complex and imparting color to the solution. As the titration approaches the equivalence point, the excess of the added ligand displaces the indicator from the metal–indicator complex, releasing the free...
9.6K
01:03Fixation and Sectioning
7.0K
Two basic types of preparation are used to visualize specimens with a light microscope: wet mounts and fixed specimens.
The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...
The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...
7.0K
01:19Complexation Equilibria: The Chelate Effect
874
In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...
874
00:49Ligand Binding and Linkage
3.8K
3.8K