Coronary Interventional CTO Testing Model: A Precision R&D Platform for Full-Procedure Workflow Validation
Release date:
2026-03-13 16:48
Pain Point Focus: The Challenges of Procedure Coverage and Path Replication in CTO Interventional Device Validation
Percutaneous coronary intervention for chronic total occlusion (CTO) lesions is the “Mount Everest” of coronary artery disease treatment, yet the development of related devices has consistently been constrained by the bottleneck of validation in core clinical scenarios.
On the one hand, the CTO has been activated.
Relying on both forward and reverse core techniques, the anatomical complexity of critical collateral pathways—such as epicardial collaterals and interventricular septal branches—is extremely high. , existing models are unable to accurately replicate the trajectory characteristics and operational resistance of such paths.
This results in a lack of clinically relevant scenario-based validation for the passability and maneuverability of both antegrade and retrograde access devices. ；
On the other hand, the clinical PCI procedure needs to cover
Various complex clinical scenarios, including CTO lesions, bifurcation lesions, and stenotic balloon-expandable lesions. , traditional models often focus on a single type of lesion,
It is difficult to support end-to-end testing spanning wire passage, balloon dilation, and stent implantation, let alone meet the dual requirements of multi-scenario adaptability validation during device R&D and market demonstrations. These pain points directly result in protracted CTO device R&D cycles and significant discrepancies between validation outcomes and real-world clinical application.
Four Key Characteristics That Increase the Difficulty of CTO Interventional Procedures
Model Value Presentation: A Deployed, Full-Procedure Workflow Testing Solution
DeWei Medical’s CTO model makes its debut in the customer showroom.
Core Needs Alignment: Providing Comprehensive Support for CTO-Intervened Device R&D
Relying on “
Precise replication of the surgical approach + complete lesion coverage Based on the core design philosophy of “”, this model is specifically designed to address the aforementioned R&D pain points, providing end-to-end support for CTO-led device development and demonstration:
Guidewire under the high-definition imaging system, visualizing the CTO lesion.
- Supports precise verification of forward and reverse passage devices: Based on real clinical CTO cases, the core procedural pathways for both antegrade and retrograde recanalization are precisely replicated—covering the tortuous course of epicardial collateral vessels and the slender diameter and angulation characteristics of septal branches. It perfectly replicates the path resistance and handling feel encountered during clinical catheterization procedures, providing a highly realistic test environment for performance optimization of core devices such as antegrade and retrograde guidewires and microcatheters.
- Coverage of multi-lesion, all-procedure workflow testing: Integrate clinically common lesion types such as CTO lesions, bifurcation lesions, and stenotic balloon-expandable lesions. It fully supports end-to-end testing of the entire PCI procedure—from guidewire puncture and balloon dilation to stent implantation and post-procedural assessment—with seamless integration of real-world device operations across all steps. This eliminates the need to repeatedly rebuild simulation models, enabling multi-condition validation in a single setup and significantly boosting R&D efficiency.
- Adapts to both R&D validation and market demonstration needs: Standardized lesion scenarios and full-surgical-procedure replication, It can both provide reproducible, quantifiable validation data for device R&D, thereby helping to optimize device performance, and intuitively showcase the operational outcomes of the device across different pathological conditions, clearly demonstrating the core steps of the entire PCI procedure and enhancing the persuasiveness of demonstrations in marketing and sales.
Keywords:
3D printing,Minimally Invasive Intervention,Medical devices,Vascular model,Silicone vascular model,Medical simulation,Medical Device R&D and Testing,Chief Technology Officer,Coronary intervention,CTO lesion,Chronic Total Occlusion,Bidirectional access device,PCI
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