Related Experiment Video
Updated: Feb 7, 2026

Author Spotlight: Innovative Methodology for Implanting and Securing Neural Probes in the Rodent Spinal Cord
Published on: July 12, 2024
A new device for collecting cord blood
1Department of Obstetrics and Gynecology, West Hills Regional Medical Center, California, USA.
Safe sampling of cord blood can reduce the risk of exposure to infectious agents by obstetric personnel. We developed a new device for collecting umbilical cord blood. Using a modified closed-cup instrument, gravity drainage within the sealed device allows for guarded-needle vacuum tube blood collection. The mean (+/- standard deviation) volume of blood collected with the device was 6.1 +/- 3.1 mL. Adding heparin into the device increased the volume collected by approximately 2 mL. The diameter and length of the cord were also related to the amount obtained. Only two of 122 samples (1.6%) had less than 1 mL of blood. The introduction of a closed container, umbilical cord sampling device offers a clear potential for risk reduction, particularly the risk of needle-stick injuries but also direct blood contamination. The device is simple to use, offers easy and safe disposal, and can be operated by physicians or nurses.
Safe sampling of cord blood can reduce the risk of exposure to infectious agents by obstetric personnel. We developed a new device for collecting umbilical cord blood. Using a modified closed-cup instrument, gravity drainage within the sealed device allows for guarded-needle vacuum tube blood collection. The mean (+/- standard deviation) volume of blood collected with the device was 6.1 +/- 3.1 mL. Adding heparin into the device increased the volume collected by approximately 2 mL. The diameter and length of the cord were also related to the amount obtained. Only two of 122 samples (1.6%) had less than 1 mL of blood. The introduction of a closed container, umbilical cord sampling device offers a clear potential for risk reduction, particularly the risk of needle-stick injuries but also direct blood contamination. The device is simple to use, offers easy and safe disposal, and can be operated by physicians or nurses.
Related Concept Videos
The Spinal Cord
Data Collection II
Spinal Cord
Data Collection I
Non-ohmic Devices
Consider a simple circuit consisting of a battery, a diode, and a resistor. A...
Mnemonic Devices
Acronyms
Acronyms are created by using the initial letters of a series of words to form a new word or phrase. This approach condenses complex information into a single, memorable entity. For example,...

