Broome Rodent Restrainers
Acrylic cylindrical restraint devices for safe immobilization of laboratory rodents during caudal vein injection and blood sampling procedures, available in five weight-specific sizes.
Louise Corscadden, PhD
Director of Science · ConductScience
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Key Specifications
Full details →- Model fit
- Gerbil, Hamster, Mouse, Rat, Guinea pig
- SKU family
- CS-BRR15-30/30-70/70-125/125-250/250-500/500-800
- Sizing
- 8.5 x 2.5 x 1.0 cm
- Ordering
- Online checkout and quote request available
- Category
- Restrainers
- Build notes
- Acrylic
The Broome Rodent Restrainer is a cylindrical acrylic restraint device designed for safe immobilization of laboratory rodents during caudal vein injection and blood sampling procedures. The restrainer features a closed-end cylindrical design with an adjustable nosepiece and a longitudinal slit for tail access, enabling researchers to perform injection procedures with both hands free for enhanced precision and safety.
Available in five size ranges from 15g to 500g animals, each restrainer is precision-manufactured from high-quality acrylic to provide clear visualization of the animal during procedures. The adjustable and removable nosepiece with screw mechanism allows for proper positioning while ensuring adequate ventilation. The full-length slit design provides complete tail access for vascular procedures while maintaining secure animal restraint.
How It Works
The Broome restrainer operates on the principle of gentle mechanical restraint through controlled confinement. The cylindrical chamber restricts lateral and rotational movement while the closed end prevents forward escape. The animal is inserted tail-first into the appropriately sized chamber, with the adjustable nosepiece positioned to maintain proper head restraint without compromising respiration.
The longitudinal slit running the entire length of the tube allows the tail to extend externally while keeping the body securely contained. This design enables clear visualization and access to the tail vasculature while preventing the animal from turning around or withdrawing the tail. The screw mechanism on the nosepiece allows fine adjustment of internal chamber length to accommodate individual animal size variations within each weight range.
Proper sizing is critical for effective restraint - the chamber must be large enough to permit normal respiration but small enough to prevent turning. The transparent acrylic construction allows continuous visual monitoring of the animal's condition throughout the procedure.
Features & Benefits
design
- Cylindrical device closed on one end
groove_feature
- Open groove extends from opening to center of endplate for nosepiece adjustment
tail_access
- Slit runs entire length of tube for tail access
size_ranges
- 15-30g, 30-70g, 70-125g, 125-250g, 250g-500g
primary_use
- Caudal vein injection and blood sampling
nosepiece
- Adjustable and removable with screw mechanism
Size
- 15-30g
- 30-70g
- 70-125g
- 125-250g
- 250g.-500g
Automation Level
- manual
Material
- Acrylic
Species
- Gerbil
- Hamster
- Mouse
- Rat
- Guinea pig
Display Type
- None
Research Domain
- Behavioral Pharmacology
- Cancer Research
- Cardiovascular Research
- Immunology
- Metabolic Research
- Pharmaceutical QC
- Toxicology
Weight
- 0.15 kg
Dimensions
- L: 8.5 mm
- W: 2.5 mm
- H: 1.0 mm
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Size Range Coverage | Five weight-specific sizes from 15g to 500g | Limited size options often covering broader weight ranges | Ensures optimal fit and restraint effectiveness for specific animal sizes. |
| Tail Access Design | Full-length longitudinal slit for complete tail exposure | Partial slits or end openings with limited access | Provides unrestricted access to the entire tail length for injection procedures. |
| Nosepiece Adjustment | Adjustable and removable with precision screw mechanism | Fixed or limited adjustment options | Allows fine-tuning for individual animals within each size range. |
| Visual Monitoring | High-quality transparent acrylic construction | Opaque or translucent materials with limited visibility | Enables continuous observation of animal condition during procedures. |
| Chamber Design | Cylindrical with closed end and open groove system | Varies by model with different geometric configurations | Prevents forward escape while facilitating easy loading and positioning. |
The Broome Rodent Restrainer offers comprehensive size coverage with precision-adjustable chambers and superior tail access through full-length slit design. The transparent acrylic construction and adjustable nosepiece system provide enhanced control and monitoring capabilities for injection procedures.
| Model | SKU | Listed price | Status | Dimensions |
|---|---|---|---|---|
| 250g.-500g | CS-BRR-250-500 | $129.00 | Available | 35.56 x 15.24 x 15.24 cm |
| 125-250g | CS-BRR-125-250 | $115.00 | Available | 33.02 x 12.7 x 15.24 cm |
| 70-125g | CS-BRR-70-125 | $90.00 | Available | 30.48 x 15.24 x 15.24 cm |
| 30-70g | CS-BRR-30-70 | $85.00 | Available | 25.4 x 15.24 x 15.24 cm |
| 15-30g | CS-BRR15-30 | $80.00 | Available | 20.32 x 22.86 x 17.78 cm |
Practical Tips
Pre-warm the restrainer slightly above room temperature before use to improve animal comfort and promote vasodilation.
Why: Warmed surfaces reduce stress and improve blood flow for easier vein visualization.
Always position animals tail-first and monitor breathing through the transparent walls throughout the procedure.
Why: Proper positioning prevents escape while visual monitoring ensures animal welfare.
Inspect the restrainer for stress cracks or damage after each cleaning cycle, particularly around the nosepiece attachment.
Why: Acrylic can develop stress fractures that compromise structural integrity and animal security.
Adjust the nosepiece to create minimal free space while ensuring the animal can breathe normally.
Why: Proper fit prevents turning while maintaining adequate ventilation for animal welfare.
If the animal can turn around, select a smaller size restrainer or adjust the nosepiece to reduce internal chamber length.
Why: Turning compromises procedure safety and prevents proper tail access.
Test the nosepiece adjustment mechanism periodically to ensure smooth operation and proper positioning.
Why: Regular testing prevents mechanical failures during critical procedures.
Record restraint time for each procedure to maintain consistency and minimize stress-related physiological changes.
Why: Standardized restraint duration reduces variables that could affect experimental results.
Setup Guide
What’s in the Box
- Broome restrainer body (size-specific)
- Adjustable nosepiece with screw mechanism
- User instructions (typical)
Warranty
ConductScience provides a standard one-year manufacturer warranty covering defects in materials and workmanship, with technical support for proper use and maintenance procedures.
Compliance
How do I select the correct restrainer size for my animals?
Choose based on body weight: 15-30g for young mice, 30-70g for adult mice, 70-125g for large mice or small rats, 125-250g for adult rats, and 250-500g for large rats. The animal should fit snugly without excessive space but with adequate room for respiration.
What is the maximum recommended restraint time?
Limit restraint to the minimum time necessary for the procedure, typically no more than 10-15 minutes to minimize animal stress. Monitor continuously for signs of respiratory distress.
Can the restrainers be autoclaved for sterilization?
Consult product datasheet for specific sterilization parameters. Acrylic materials may have temperature limitations that affect autoclave compatibility.
How does the adjustable nosepiece work?
The nosepiece features a screw mechanism that allows fine adjustment of the internal chamber length to accommodate individual animal size variations within each weight range.
What cleaning agents are compatible with the acrylic construction?
Use mild disinfectants and avoid harsh solvents that may cause stress cracking in acrylic. Rinse thoroughly after cleaning and dry completely before use.
How does this compare to other restraint methods?
The Broome design allows both hands free for injection procedures compared to manual restraint, while providing better tail access than cone-shaped restrainers.
Can I see the animal's condition during restraint?
Yes, the transparent acrylic construction allows continuous visual monitoring of the animal's breathing and overall condition throughout the procedure.
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