Medispirex
Medispirex
Engineered with micro-tolerance standards to support clinical performance and recovery outcomes.
Medispirex Orthopedic Technology Co., Ltd. stands as a premier manufacturing destination for advanced trauma, spine, and joint reconstruction technologies.
Our focus lies on producing high-grade, headless compression screws, commonly referred to as Herbert Screws. These implants require ultimate precision, variable pitch thread engineering, and complete biocompatibility. By incorporating 12+ years of industry experience and 7 years of specialized medical device export operations, we provide tailored medical solutions to global hospital buyers, professional orthopedic distributors, and OEM/ODM brands.
From micro-size hand and foot bone implants to large-scale joint systems, our facility leverages precision-oriented manufacturing to ensure mechanical stability, reliable fatigue limits, and optimal surgical ergonomics.
Medispirex runs an extensive manufacturing and logistical framework comprising over 860 upstream and downstream supply partners. This level of vertical integration guarantees stable raw material access and consistent logistics, ensuring your contract orders arrive on schedule.
Understanding the physics of variable pitch thread configurations in osteosynthesis.
Unlike standard bone screws, Herbert screws feature a dual-threaded shaft without a protruding head. The leading thread utilizes a larger pitch than the trailing thread. As the screw is driven into place, it pulls both bone fragments together dynamically, generating significant compression across the fracture line.
The headless layout allows the implant to be driven beneath the articular cartilage surface. This configuration is critical for intra-articular fractures (such as scaphoid, osteochondral, and radial head fractures) where conventional screw heads would cause cartilage degradation and friction against opposing joints.
Our OEM Herbert screws include precision cannulated cores. This hollow center allows surgeons to place a temporary guide wire (K-wire) to align fragments accurately before introducing the screw. This structure minimizes surgical time and increases placement accuracy.
To highlight the advantages of our custom OEM Herbert screws, consider the performance indicators comparing traditional lag screws with our variable pitch headless screws:
| Mechanical Parameter | Traditional Headed Lag Screw | Medispirex OEM Herbert Screw | Clinical Significance |
|---|---|---|---|
| Compression Method | Relying on screw head pushing against cortical bone | Differential pitch ratio between threads | Prevents cortical necrosis under the head; maintains tension. |
| Soft Tissue Irritation | High risk in articular joints (e.g., scaphoid, talus) | Zero (fully countersunk within bone) | Reduces post-operative pain and tendon friction. |
| Fatigue Endurance (Ti-6Al-4V) | Standard (~450 MPa) | Enhanced due to grain alignment (>550 MPa) | Prevents implant fracture under cycle loads before fusion. |
| Insertion Torque Control | Manual limiting to avoid stripping head | Engineered star/hexagonal internal drive | Prevents driver slippage and damage to the drive socket. |
Implants placed in human or animal bone structures require advanced materials that deliver mechanical strength without causing biocompatibility issues.
Medispirex utilizes only certified medical-grade raw materials. The mechanical integrity of our custom implants is backed by strict metallurgical verification:
Our engineering team (85+ R&D professionals) works alongside medical device distributors to design custom fixation screws from scratch:
Overcoming global logistic issues, material traceability requirements, and regulatory audits.
Global medical standards demand absolute traceability. Medispirex maintains an audited batch traceability index for every shipment. From incoming titanium bars to the finished, packaged product, our 45-member QC team oversees testing certifications and micro-structure reports, ensuring zero-defect quality control.
Failing to secure supply consistency can disrupt surgery schedules. Operating with an export capacity of USD 18 million and 860 supply partners, Medispirex offers predictable production schedules, protecting distributors against raw material shortages or shipping delays.
We provide full documentation, including biocompatibility reports, mechanical fatigue performance metrics, and compliance logs, simplifying the registration process across different target regions.
A major European orthopedic supplier required a headless compression screw line with a customized 15-degree pitch ratio to address complex hand reconstructive surgeries. Our R&D engineers utilized Finite Element Analysis (FEA) to simulate screw insertion stress, delivering optimized prototypes within 21 days and securing CE MDR approval registration within the client's timeline.
Take a virtual tour inside Medispirex's 18,600㎡ modern manufacturing facility.
Rigorous verification workflows that guarantee surgical safety and compliance.
We source only high-grade medical raw materials. Every batch of titanium alloy (ASTM F136) or PEEK receives chemical composition testing, spectroscopic analysis, and tensile strength profiling to verify mechanical integrity before production.
During Swiss-type lathe machining, optical comparators and micrometer probes verify thread tolerances every 10 minutes. This avoids axis deviation, ensuring consistent pitch values across the screw length.
Samples undergo static torsion testing and cyclic mechanical fatigue evaluations, complying with ASTM F543 parameters. This testing guarantees the screws handle surgical insertion torque without micro-fracturing.
Our ultrasonic multi-stage anodizing and washing lines clean residual processing oils from the implants. Our cleanrooms undergo regular microbial bioburden validation to ensure implant sterilization safety.
As minimally invasive orthopedics evolves, Medispirex continues to advance its product capabilities:
We are researching bioabsorbable magnesium alloys (Mg-Zn-Ca). These elements dissolve gradually while encouraging bone growth, presenting a strong alternative for pediatric fracture fixation.
Developing sub-micron porous titanium layers on implant surfaces using plasma spraying. This texture supports bone cell attachment, securing faster post-op integration.
Integrating 3D printing workflows to produce customizable drilling templates that pair with our cannulated Herbert screw designs.
Professional insights on sourcing, specifications, and applications of Herbert Screws.
High-durability accessories and tools engineered to complement micro-fixation procedures.
