Related Experiment Video
Updated: Jul 15, 2026

Disclosing Hemolymph Collection and Inoculation of Metarhizium Blastospores into Rhipicephalus Microplus Ticks Towards Invertebrate Pathology Studies
Published on: June 1, 2019
Rhys-davies exsanguinator: a haven for bacteria
M S G Ballal1, N Emms, M O'Donoghue
1Department of Orthopaedics, Leighton Hospital, Crewe, Cheshire CW1 4QJ, UK. dr_moez@yahoo.co.uk
The Rhys-Davies exsanguinator can become contaminated with harmful bacteria after each use, posing an infection risk. Effective cleaning protocols are crucial to prevent patient-to-patient transmission of bacteria.
Area of Science:
- Medical devices
- Infection control
- Microbiology
Background:
- The Rhys-Davies exsanguinator is used for exsanguination before surgery.
- Concerns exist regarding the potential for medical devices to harbor and transmit pathogens.
Purpose of the Study:
- To assess bacterial contamination on the Rhys-Davies exsanguinator.
- To evaluate the risk of infection transmission associated with its use.
Main Methods:
- Serial swabbing of inner and outer surfaces of the exsanguinator.
- Microbiological analysis of swabs before and after patient use.
- Identification of bacterial species, including potentially harmful ones.
Main Results:
- Bacterial contamination increased on both surfaces with repeated use.
- Potentially harmful bacteria, such as Pseudomonas sp., were identified.
- The device showed a capacity to harbor microorganisms after use.
Conclusions:
- The Rhys-Davies exsanguinator can harbor harmful bacteria, increasing infection transmission risk.
- Thorough cleaning between uses is essential to mitigate contamination.
- Further investigation into effective cleaning methods is warranted.
Related Concept Videos
Bacterial Phylum Spirochaetes
Bacterial Phylum Bacteroidota
Bacterial Phylum Actinobacteria
Reservoir of Infection
Hyperthermophilic Bacteria
Anoxygenic Phototrophic Bacteria

