In an era dominated by drug-eluting stents (DES), interventional cardiologists, cath lab procurement directors, and international medical device importers frequently question the ongoing market demand for Bare Metal Coronary Stents (BMS). Clinical evidence and health-economic data demonstrate that high-performance BMS platforms engineered by Orthi Medical Co., Ltd. fulfill critical niches where DES technologies present clinical risks or economic inefficiencies.
Engineered to deliver exceptional deliverability, vessel conformability, and reliable radial scaffolding. Supplied fully crimped on high-pressure balloon delivery catheters in sterile Tyvek packaging.
Engineered from medical-grade Cobalt-Chromium L605 alloy (ASTM F90). Features 60–75 μm ultra-thin struts, an open-cell sine-wave geometry, excellent radiopacity, and an entry profile as low as 0.016 inches for complex vessel crossability.
Designed for pre-dilatation and post-stent expansion optimization. Features a non-compliant PEBAX balloon material with a Rated Burst Pressure (RBP) up to 20 atm, ensuring homogeneous stent wall apposition without dog-boning.
Biocompatible polyurethane urological stent featuring smooth hydrophilic coating, tapered tip design, and radiopaque longitudinal marker line for accurate endourology positioning and drainage.
Custom OEM laser-cutting of CoCr L605, Nitinol, and 316L SS micro-tubing. Precision femtosecond laser cutting, chemical etching, electropolishing, and cleanroom crimping tailored to customer specifications.
Rigorous mechanical testing per ASTM F2078, ASTM F2477, and ISO 25539-2 ensures exceptional structural integrity, pushability, trackability, and radial resistance.
| Technical Parameter | Cobalt-Chromium (CoCr L605) Specification | 316L Stainless Steel Specification |
|---|---|---|
| Strut Thickness | 60 μm (Small Vessel) / 75 μm (Large Vessel) | 80 μm – 85 μm |
| Stent Material Standard | ASTM F90 / ISO 5832-5 | ASTM F138 / ISO 5832-1 |
| Nominal Expansion Diameters | 2.0 mm, 2.25 mm, 2.5 mm, 2.75 mm, 3.0 mm, 3.5 mm, 4.0 mm, 4.5 mm | 2.5 mm, 3.0 mm, 3.5 mm, 4.0 mm, 5.0 mm |
| Stent Length Matrix | 8 mm, 12 mm, 15 mm, 18 mm, 23 mm, 28 mm, 33 mm, 38 mm | 9 mm, 13 mm, 16 mm, 19 mm, 24 mm, 29 mm, 34 mm |
| Elastic Recoil Rate | < 3.2% (deflated at nominal pressure) | < 3.8% (deflated at nominal pressure) |
| Longitudinal Foreshortening | < 2.5% at maximum expansion diameter | < 3.0% at maximum expansion diameter |
| Radial Strength (Collapse Pressure) | > 1.6 bar (> 1200 mmHg) | > 1.4 bar (> 1050 mmHg) |
| Delivery Catheter Compatibility | 0.014" Guidewire / 5F & 6F Guiding Catheter | 0.014" Guidewire / 6F Guiding Catheter |
| Balloon Marker Bands | Twin Swaged Platinum-Iridium (Pt/Ir) Markers | Twin Swaged Platinum-Iridium (Pt/Ir) Markers |
| Sterilization Assurance Level | EtO Sterilization, SAL 10-6 (ISO 11135 compliant) | EtO Sterilization, SAL 10-6 (ISO 11135 compliant) |
Insights into material science innovations, global supply chain evolution, and polymer-free platform shifts guiding hospital and distributor procurement decisions through 2030.
The global transition toward Cobalt-Chromium (CoCr L605) has revolutionized bare metal stent engineering. CoCr offers higher yield strength and radiopacity compared to 316L stainless steel, permitting strut thickness reductions down to 60 microns without sacrificing radial force. Thinner struts significantly reduce blood flow disruption, cut arterial shear stress, accelerate re-endothelialization, and halve clinical restenosis rates in non-complex lesions.
A major trend among global medical device distributors is the procurement of high-grade bare metal stents to serve as baseline platforms for polymer-free, drug-coated, or bio-absorbable top-layer applications. By sourcing precision laser-cut CoCr frameworks from ISO 13485 partners like Orthi Medical Co., Ltd., international brands can integrate proprietary anti-restenosis compounds without investing millions in metal fabrication infrastructure.
Legacy fiber laser cutting created thermal heat-affected zones (HAZ) requiring micro-grinding and heavy chemical baths. Modern manufacturing utilizes ultra-short pulse femtosecond lasers that ablate metallic tubing cold, creating burr-free micro-structures. Subsequent automated electropolishing achieves a mirror surface finish (Ra < 0.05 μm), minimizing platelet adhesion, acute thrombogenicity, and micro-particle release.
Hospital purchasing committees and regional distributors are increasingly avoiding fragmented supply chains. They prefer centralized manufacturers capable of providing complete catheterization laboratory portfolios—combining Bare Metal Stents, NC Balloon Catheters, Ureteral Stents, and Orthopedic Fixation Implants—supported by CE MDR technical dossiers, ISO 13485 certificates, and robust packaging validation.
At Orthi Medical Co., Ltd., every coronary stent system undergoes comprehensive structural, dimensional, and metallurgical validation before release. Operating under rigorous ISO 13485 and ISO 9001 certified quality management systems, our cleanroom manufacturing facility integrates state-of-the-art optical inspection, mechanical testing labs, and sterile barrier assembly lines.
| Raw Material | Standard Specification | Tensile / Mechanical Performance |
|---|---|---|
| Cobalt-Chromium L605 | ASTM F90 / ISO 5832-5 | Tensile Strength ≥ 1000 MPa, High Ductility |
| 316L Stainless Steel | ASTM F138 / ISO 5832-1 | High Radial Force, Excellent Purity |
| Pt/Ir Marker Alloy | ASTM B688 | 90/10 Platinum-Iridium High Radiopacity |
Orthi Medical Co., Ltd. supports healthcare providers and international partners with complete technical documentation, bench test validation data, and cath lab training materials.
Comprehensive fatigue test reports (> 400 million stress cycles per ASTM F2477), kink resistance, and recoil evaluation files.
Step-by-step sizing, prep, trackability maneuver, and inflation pressure guides for interventional specialists.
CE MDR aligned technical files, ISO 11135 sterilization validation, and biocompatibility studies per ISO 10993.
Direct collaboration with our senior biomedical engineers for custom strut geometry, crimping, and packaging OEM designs.
"Orthi Medical’s Cobalt-Chromium Bare Metal Stent displays outstanding pushability and crossability even through calcified, tortuous coronary arteries. The mechanical radial stability and predictable low recoil make it a trusted choice for high bleeding risk cases requiring short DAPT protocols."
"Partnering with Orthi Medical Co., Ltd. for our OEM coronary stent line streamlined our regulatory approval process. Their ISO 13485 cleanroom capabilities, flawless laser polishing, and consistent lead times have made them an essential partner in our global expansion."
Key questions answered regarding clinical indications, metallurgical standards, OEM capabilities, compliance documentation, and bulk procurement protocols.
Expert perspectives on stent design, material metallurgy, and regulatory registration strategies.
How reducing Cobalt-Chromium strut thickness from 100 μm to 60 μm alters wall shear stress and accelerates 30-day arterial healing.
Evaluating 1-month DAPT outcomes in high-bleeding-risk patients using ultra-thin bare metal stent platforms.
A step-by-step B2B guide for international medical distributors registering vascular stents under European CE MDR and FDA guidelines.
Partner with Orthi Medical Co., Ltd. for premium Bare Metal Coronary Stents, OEM laser-cutting, or high-pressure balloon catheters. Contact our technical team at [email protected] for instant specifications and factory direct pricing.
