RWD 68605 Stereotactic Drill Holder
| Brand | RWD |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | OEM Manufacturer |
| Region of Origin | Domestic (China) |
| Model | 68605 |
| Pricing | Available Upon Request |
Overview
The RWD 68605 Stereotactic Drill Holder is an engineered mechanical interface designed for precise integration of handheld stereotactic drills with standard stereotaxic frame manipulators—particularly those equipped with vertical micromanipulator arms. It operates on a rigid clamping principle, enabling secure axial coupling between the drill and the manipulator’s vertical translation stage. This configuration transforms manual drilling into a controlled, depth-referenced procedure: drill bit advancement is governed exclusively by the calibrated vertical displacement of the stereotaxic arm, eliminating freehand depth variability. The device is purpose-built for in vivo rodent neurosurgery, where consistent craniotomy depth control is critical to avoid dural puncture, cortical laceration, or unintended subcortical damage. Its design adheres to fundamental biomechanical constraints observed in small-animal stereotaxy, prioritizing minimal lateral play, zero rotational slippage, and repeatable mounting alignment across experimental sessions.
Key Features
- Fixed-bore clamping mechanism with 14.5 mm internal diameter jaw opening—optimized to accommodate common handheld stereotactic drills (e.g., RWD 68603, FHC MS-350, Stoelting 51619) without adapter requirements.
- Two-point locking system: primary axial screw clamp + secondary lateral set-screw ensures zero axial creep during torque application.
- CNC-machined 303 stainless steel construction for corrosion resistance, non-magnetic compatibility, and autoclavability (up to 134°C, 2 bar).
- Integrated 1/4″-28 UNC threaded base mount—compatible with standard stereotaxic frame rails (e.g., David Kopf, Stoelting, RWD 68600 series frames).
- Zero-offset vertical alignment: drill bit centerline coincides with manipulator’s vertical travel axis within ±15 µm tolerance, verified via optical collimation during QC.
Sample Compatibility & Compliance
The 68605 holder supports all handheld drills with outer diameters ≤14.5 mm and cylindrical shaft profiles. It is routinely deployed in IACUC-approved protocols involving C57BL/6, Sprague-Dawley, and Wistar rats and mice. Device geometry conforms to ISO 13485–aligned manufacturing controls. While not a medical device per FDA 21 CFR 820, its materials and surface finish comply with USP Class VI plastic equivalency standards for metallic surgical accessories. Documentation includes full RoHS 2011/65/EU and REACH SVHC declarations. Traceable lot numbers are engraved for GLP-compliant experiment logging.
Software & Data Management
As a passive mechanical interface, the 68605 requires no firmware, drivers, or software integration. Depth control remains fully analog and hardware-bound—eliminating latency, calibration drift, or cybersecurity dependencies inherent in motorized systems. Experimental depth parameters are recorded manually in lab notebooks or digital ELN systems (e.g., LabArchives, Benchling) alongside manipulator scale readings. For labs using digital stereotaxic controllers (e.g., Neurostar ST-1, KOPF 1400), the holder maintains full backward compatibility: users log the manipulator’s encoder position at drill contact and endpoint, enabling post-hoc depth reconstruction with ±2 µm uncertainty (based on manufacturer-specified micrometer resolution).
Applications
- Craniotomy depth control during intracranial electrode implantation (tetrodes, silicon probes, optrodes).
- Standardized skull thinning or partial craniectomy for chronic window preparations (e.g., cranial windows for two-photon imaging).
- Calvarial bone marrow aspiration in murine hematopoietic studies.
- Targeted microinjection needle insertion requiring submillimeter dural clearance.
- Validation of drill bit wear effects on thermal injury thresholds—by isolating depth as sole variable via fixed-arm coupling.
FAQ
Is the 68605 compatible with non-RWD stereotaxic frames?
Yes—it mounts universally via 1/4″-28 UNC threads and fits all major frames with standard rail spacing (e.g., Kopf, Stoelting, Angle Two, Narishige).
Can it be sterilized using ethylene oxide (EtO)?
No. EtO is not recommended due to residual absorption in internal thread lubricants; autoclaving (134°C, 2 bar, 5 min) is the validated method.
Does it support angled drilling trajectories?
No. It maintains strict coaxial alignment with the manipulator’s Z-axis; angled approaches require independent tilt-stage integration upstream of the holder.
What is the maximum torque load rating?
Rated for continuous operation up to 0.8 N·m—sufficient for carbide-tipped drill bits operating at ≤15,000 rpm on standard small-animal bone.
Is technical documentation available in English with dimensional drawings?
Yes. CAD files (STEP, IGES), 2D engineering drawings (ASME Y14.5–2018 compliant), and installation SOPs are provided upon request with purchase confirmation.
