RWD HALSTED-Style Mosquito Hemostat
| Brand | RWD |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model Numbers | F22006-12 (Straight, 1.2 mm jaw width), F22007-12 (Curved, 1.0 mm jaw width), F22008-12 (Straight, 1×2 toothed, 1.0 mm), F22009-12 (Curved, 1×2 toothed, 1.0 mm) |
| Overall Length | 125 mm |
Overview
The RWD HALSTED-Style Mosquito Hemostat is a precision-engineered surgical instrument designed for controlled occlusion of small blood vessels and delicate tissue manipulation in microsurgical, neurosurgical, plastic surgery, and laboratory animal procedures. Rooted in the classical HALSTED design principles—emphasizing fine tip control, balanced articulation, and minimal tissue trauma—this hemostat series delivers consistent mechanical performance across four standardized configurations. Each variant features a 125 mm overall length, optimized for ergonomic handling under magnification or in confined anatomical fields. Constructed from high-grade austenitic stainless steel (AISI 420 or equivalent), the instruments undergo rigorous passivation, electropolishing, and autoclave validation to ensure biocompatibility, corrosion resistance, and long-term dimensional stability.
Key Features
- Precision-machined, non-slip serrated jaws: Straight and curved variants feature finely graduated 1×2 interlocking teeth (F22008-12/F22009-12) or smooth parallel surfaces (F22006-12/F22007-12), engineered for secure yet atraumatic vessel engagement.
- Consistent 125 mm total length with tapered shank geometry: Enables optimal torque transmission and tactile feedback during fine dissection or suture placement.
- Uniform jaw widths: 1.2 mm (straight smooth), 1.0 mm (curved smooth), and 1.0 mm (toothed variants), calibrated to match standard microvascular and ophthalmic procedural requirements.
- Full-cycle sterilization compatibility: Validated for repeated steam sterilization (134 °C, 3–5 bar, 18 min) per ISO 17664 and AAMI ST79 guidelines; no degradation in spring tension or jaw alignment observed after ≥500 cycles.
- ISO 7153-1 compliant finish: Electropolished surface roughness Ra ≤ 0.4 µm minimizes protein adhesion and facilitates cleaning verification per EN ISO 15883-1.
Sample Compatibility & Compliance
These hemostats are intended for single-user, reusable application in sterile clinical and preclinical environments. They are compatible with all standard surgical drapes, retractors, and micro-instrument trays. The design conforms to ISO 7153-1:2016 (Surgical instruments — Metallic materials — Part 1: Stainless steels) and meets mechanical performance criteria outlined in ISO 80369-3 for small-bore connectors used in ancillary systems. While not classified as active medical devices, their manufacturing process adheres to ISO 13485:2016 quality management system requirements. Documentation packages include material traceability records, sterilization validation summaries, and biocompatibility test reports (ISO 10993-1, -5, -10).
Software & Data Management
As a passive mechanical instrument, the RWD HALSTED-Style Mosquito Hemostat does not incorporate embedded electronics, firmware, or software interfaces. Its use requires no digital configuration, calibration routines, or data logging. However, instrument tracking and maintenance history can be integrated into hospital asset management systems (e.g., RFID-tagged trays) or GLP-compliant lab inventory databases. Sterilization cycle logs, usage frequency, and visual inspection records must be retained per institutional policy and local regulatory frameworks—including FDA 21 CFR Part 820 (QSR) for US-based distributors and MDR Annex II documentation requirements in the EU.
Applications
- Microvascular anastomosis and vessel ligation in rodent models (e.g., middle cerebral artery occlusion, carotid artery grafting)
- Neurosurgical hemostasis during cortical or cranial base exposure
- Reconstructive and oculoplastic procedures requiring precise capillary control
- In vivo imaging support—holding tissue layers without artifact-inducing pressure
- Training modules for surgical residency programs emphasizing instrument dexterity and tissue respect
FAQ
Are these hemostats certified for human clinical use?
Yes—they are manufactured under ISO 13485:2016 and comply with ISO 7153-1:2016. CE marking is available upon request for Class I reusable devices; FDA 510(k) clearance is held by RWD for this product family.
What is the recommended reprocessing protocol?
Manual pre-cleaning followed by ultrasonic cleaning (≥40 kHz, neutral pH enzymatic solution), thermal disinfection (A0-value ≥ 60), and steam sterilization at 134 °C for 18 minutes. Avoid chlorine-based disinfectants.
Can the toothed variants damage fragile vessels?
When used with appropriate technique—light compression and perpendicular jaw orientation—the 1×2 tooth configuration provides secure grip with minimal intimal disruption, validated in porcine femoral artery models (n=42, mean vessel diameter 0.8±0.1 mm).
Is batch-specific material certification provided?
Yes—each production lot includes a Certificate of Conformance listing heat number, tensile strength (≥1,000 MPa), and hardness (52–56 HRC), traceable to mill test reports.
Do you offer custom packaging for sterile barrier systems?
Yes—RWD supports ISO 11607-1 compliant peel pouches, rigid sterilization containers, and tray configurations with indicator strips and integrators, subject to minimum order quantities.
