Trauma & Joint Product Catalog Series I
High-Precision Orthopedic Trauma & Arthroplasty Platforms
Explore our flagship internal fixation systems, precision lag screws, joint reconstruction components, and anatomical locking compression plates engineered for optimal patient outcomes.
Clinical Biomechanics & Engineering
The Engineering Core of the Hip DHS Plaque
The Dynamic Hip Screw (DHS) system—clinically designated as the sliding hip screw plate or hip DHS plaque—remains one of the most mechanically verified internal fixation solutions in proximal femoral fracture management. Engineered to address trochanteric and pertrochanteric fractures (classified under AO/OTA 31-A1 and select 31-A2), the fundamental engineering premise relies on controlled dynamic axial collapse along the femoral neck axis.
By translating physiological patient loading into controlled impaction of the proximal fracture fragments against the stable femoral shaft, the DHS plaque promotes secondary bone healing through interfragmentary compression. Unlike rigid static constructs that concentrate stress at the implant-bone junction, our sliding DHS barrel configuration drastically lowers the risk of hardware breakage, screw cut-out from the superior femoral head, and medial displacement of the femoral shaft.
Dynamic Axial Sliding
Preserves continuous bone-to-bone contact through controlled telescoping action.
Load-Sharing Architecture
Reduces peak bending moments across the subtrochanteric cortical junction.
DHS Biomechanical Parameters
Our DHS barrel plaques are manufactured to strict ISO 7206 and ASTM F384 dynamic fatigue standards, ensuring zero structural failure under repetitive cyclical gait loads.
- Available Barrel Angles130°, 135°, 140°, 145°, 150°
- Barrel Length OptionsStandard (38mm) / Short (25mm)
- Shaft Hole Configuration2 to 14 Holes (DCP & Combination)
- Lag Screw DiameterØ12.7 mm with Reverse Cutting Flutes
- Raw Material GradeTitanium Grade 5 (ELI) / 316L Stainless
- Surface TreatmentType II Anodization / Micro-Glass Blasting
Beijing Manufacturing Center Advantages
Why International Distributors Source DHS Implants from China
Combining state-of-the-art multi-axis CNC robotics, tightly regulated titanium metallurgy, and vertically integrated production lines, Beijing ZhongAnTaiHua Technology Co., Ltd. (ZATH) provides undeniable cost and quality advantages.
5-Axis CNC Precision Machining
Utilizing high-speed German DMG MORI and Swiss-type Citizen turning centers, our DHS barrel plates and lag screws achieve tolerances within ±0.005mm, ensuring smooth lag-screw gliding without micro-wedging or mechanical jamming.
Certified Medical Metallurgy
Every batch of raw bar stock is sourced exclusively with verifiable mill certs in accordance with ASTM F136 (Ti-6Al-4V ELI) and ASTM F138 (Implant Grade 316L Stainless Steel). Complete chemical purity and biocompatibility are strictly maintained.
Class 100,000 Cleanroom Packaging
Implants undergo ultrasonic multi-stage cleaning and are packaged within ISO Class 7 cleanrooms inside medical-grade Tyvek blister barriers. Each unit offers gamma or ethylene oxide (EtO) sterilization readiness with up to 5 years validated shelf life.
15+
Years of Specialized Orthopedic Device Manufacturing Since 2009
300+
Skilled Technicians, QC Inspectors & Biomedical R&D Engineers
100%
Lot-Traceable Batch Records from Ingot to Finished Packaging
4-6Days
Fast-Track Express Global Courier Fulfillment via DHL/FedEx/TNT
Technology Evolution & Market Drivers
Emerging Trends in Hip Fracture Fixation & DHS Systems
Trauma engineering is continuously advancing beyond traditional non-locking plates toward low-profile, anatomical contours, minimally invasive surgical (MIS) access, and hybrid anti-rotation designs.
Hybrid DHS-LCP Combis
The integration of variable-angle locking screw holes into the distal DHS shaft allows unicortical or bicortical angular stability in osteoporotic diaphyseal bone, bridging the performance gap with intramedullary nails.
MIS Targeting Guides
Modern surgical workflows demand minimal periosteal stripping. Our radiolucent carbon-fiber targeting guides facilitate percutaneous barrel insertion through small incisions, cutting blood loss and accelerating recovery.
Anti-Rotation Augmentation
For unstable basicervical or rotational-prone fractures, modern DHS plaques accommodate parallel cranial anti-rotation screws (Ø6.5mm) through dedicated guide blocks to prevent head rotation during lag screw insertion.
Additive 3D Mesh Surfaces
Subperiosteal surfaces feature micro-etched and porous contact patterns that limit vascular compression along the lateral femoral cortex, maintaining natural periosteal blood flow and decreasing infection risks.
Clinical Indications & Application Protocols
Optimized Clinical Scenarios for Hip DHS Plaque Systems
Surgical success depends upon matching patient fracture anatomy with appropriate implant mechanics. Review the clear clinical indications and biomechanical trade-offs between DHS and cephalomedullary nails.
| Fracture Classification | Primary Indication | Recommended DHS Configuration | Clinical Rationales & Biomechanics |
|---|---|---|---|
| AO/OTA 31-A1.1 to 31-A1.3 Stable Pertrochanteric |
Gold Standard DHS Indication | 135° Standard Barrel Plaque, 4-Hole Plate, Standard Lag Screw | Intact medial calcar provides direct buttress against sliding collapse. Telescoping mechanism creates rapid interfragmentary impaction. |
| AO/OTA 31-A2.1 Two-Part Intertrochanteric |
Highly Favorable with DHS | 135° or 140° Standard Barrel, 5-Hole Plate, Compression Screw | Allows controlled secondary lateral collapse. Tip-Apex Distance (TAD) < 25mm must be maintained to prevent lag screw cut-out. |
| AO/OTA 31-B2.1 Basicervical Femoral Neck |
Indicated with Anti-Rotation Screw | 130° or 135° Plaque with parallel Ø6.5mm cranial cannulated screw | High shear stresses countered by the fixed barrel angle. Parallel screw prevents femoral head rotation during axial patient weight-bearing. |
| Intertrochanteric Osteotomy Pediatric / Adult Coxa Vara/Valga |
Reconstructive Realignment | 130° / 140° / 150° Osteotomy Plaque with angled blade/barrel | Enables precise multi-planar correction of proximal femoral deformities with rigid internal fixation until solid bony consolidation. |
| Reverse Oblique (31-A3) Unstable Subtrochanteric |
Relative Contraindication (IM Nail preferred) | DHS Plaque with Trochanteric Stabilizing Plate (TSP) | Tendency for medial femoral shaft displacement is mitigated when reinforced by a TSP; otherwise, cephalomedullary nailing is indicated. |
Macro Supply Chain & Global Healthcare
Solving Hospital Procurement Bottlenecks & Tender Challenges
Public healthcare systems, private orthopedic hospital chains, and global medical device importers require reliable suppliers who mitigate supply risk, guarantee regulatory compliance, and control per-case costs.
Sterile-Packed Tray Economics
By delivering individually sterile-barrier packed DHS plates, lag screws, and compression screws, hospital CSSD (Central Sterile Services Department) workloads drop by over 45%. We eliminate costly flash re-sterilization risks in emergency trauma theaters.
International Tender Compliance
Our regulatory team supplies complete technical documentation—including ISO 13485 QMS certificates, CE dossiers, Free Sale Certificates (FSC), biocompatibility evaluation reports (ISO 10993), and risk analysis files (ISO 14971)—accelerating local MOH product registrations.
Resilient Buffer Stock & Logistics
To shield partner distributors from volatile trauma surgical surges, ZATH maintains permanent safety inventory for rapid order turnaround. Orders ship through bonded warehousing via DHL, FedEx, UPS, or TNT with standard delivery in 4–6 business days worldwide.
OEM & ODM Customization
Tailored DHS Manufacturing for Global Brand Importers
As a seasoned orthopedic contract manufacturer and primary exporter, ZATH equips healthcare brand owners with full-scope OEM and ODM customization. Whether you require bespoke barrel angles, customized screw thread pitches, proprietary instrument ergonomic grips, or localized private-label blister packaging, our engineering center converts technical drawings into commercial-grade implants with rapid turnaround.
Proprietary Laser Etching & Surface Coloring
Fiber-laser marking of distributor logos, lot codes, and UDI matrix codes, along with electrochemical color anodization (gold, teal, blue, magenta).
Dedicated DHS Surgical Instrument Sets
Matching instrumentation kits containing triple reamers, lag screw taps, centering sleeves, guide wire calipers, angled insertion guides, and quick-coupling drivers.
Flexible Small-Batch to High-Volume Production
Agile tooling setup allows flexible minimum order quantities (MOQs) for market validation while supporting high-capacity hospital tender production runs.
DHS Instrument Set Layout
Every ZATH DHS plaque order is supported by our dedicated autoclavable aluminum-alloy surgical graphic case, precision-milled for seamless operative workflows:
- Angled Guide Wire Director130° / 135° / 140° / 145° / 150°
- DHS Triple ReamerAdjustable 50mm - 120mm
- DHS Tap & Centering SleeveØ12.7mm Medical Stainless
- Lag Screw Wrench & InserterT-Handle with Quick Coupling
- DHS Compression Screwdriver3.5mm Hexagonal Drive
- Direct Depth GaugeCalibrated 0mm - 150mm
Procurement & Technical FAQ
Answers for Hospital Buyers & Medical Importers
Addressing the most pressing technical, clinical, regulatory, and supply chain questions encountered during supplier qualification.
What is the clinical difference between 130° and 135° DHS barrel plates?
The 135° DHS plate represents the international standard conforming to the average anatomical collodiaphyseal (neck-shaft) angle in adult proximal femurs. The 130° plate is preferred in coxa vara anatomies or where more horizontal lag screw placement is required to maximize central placement in the femoral head and preserve a low Tip-Apex Distance (TAD).
When should surgeons select a standard barrel vs. a short barrel DHS plaque?
Standard barrels (38mm) provide optimal guidance length and reduce toggle for lag screws ≥85mm. Short barrels (25mm) are mandatory for shorter lag screws (≤80mm) to prevent the screw threads from jamming or bottoming out against the distal rim of the barrel, which would arrest dynamic sliding collapse prematurely.
How does ZATH guarantee raw material authenticity for titanium and steel implants?
Every raw ingot and extruded bar of medical-grade Ti-6Al-4V ELI (ASTM F136) and 316L Stainless Steel (ASTM F138) arrives with verified material test certificates (MTC). We conduct in-house spectral composition analysis, tensile testing, and metallographic grain size evaluations before CNC processing begins.
Can you provide technical dossiers for national regulatory registration?
Yes. We supply comprehensive registration dossiers comprising ISO 13485 QMS certificates, CE technical file documentation, declaration of conformity, Free Sale Certificates (FSC), biocompatibility reports (cytotoxicity, sensitization, systemic toxicity per ISO 10993), and dynamic fatigue performance test reports.
What is the minimum order quantity (MOQ) for custom OEM laser-marked DHS implants?
For standard sizes with custom laser branding and personalized packaging, our initial evaluation MOQ begins at 50 pieces per configuration. For completely customized forgings or custom hole configurations, our engineering team provides flexible pilot mold development programs tailored to your annual volume targets.
Are ZATH DHS surgical instruments compatible with major international plate brands?
Yes. Our surgical DHS instrument set conforms to universal AO-standard thread forms and barrel tolerances. The triple reamers, taps, and wrenches can reliably service major international DHS and DCS implants, ensuring seamless hospital integration without cross-system incompatibility.
How does the sliding mechanism handle highly osteoporotic elderly bone?
In osteoporotic trochanteric bone, lag screw purchase is critical. ZATH lag screws feature wide, deeply pitched, reverse-cutting thread profiles designed to maximize bone-metal surface area in the femoral head. When paired with our 4-hole or 6-hole combination locking barrel plates, screw anchorage into compromised lateral cortical bone is significantly fortified.
What is the standard lead time for international air and ocean shipments?
Standard inventory configurations ship within 48 to 72 hours via international air couriers (DHL, FedEx, TNT, UPS), arriving at most major international hospital depots within 4 to 6 business days. Large bulk OEM tender orders typically dispatch via consolidated air cargo or ocean freight within 3 to 4 weeks.
Trauma & Joint Product Catalog Series II
Precision Reconstruction Plates & Surgical Instrument Sets
Complete your institutional procurement evaluation with our comprehensive anatomical reconstruction plates, sports medicine anchors, thoracic rib systems, and spine stabilization sets.
Partner with an Accountable Orthopedic Implant Manufacturer
Contact our biomedical engineering desk in Beijing today for comprehensive DHS technical whitepapers, sizing catalogs, batch pricing lists, and fast-track OEM/ODM distributor qualification.