In the field of precision medical manufacturing, Shenzhen JiaJiaYong Laser Equipment Co., Ltd. with its professional technical strength, provides key support for the precision manufacturing of cardiovascular interventional devices. As one of its core products, the laser drilling machine for cardiovascular devices, with its outstanding micromachining capability, is reshaping the manufacturing standards for life-sustaining devices such as vascular stents and balloon catheters.

I. Core Technology: Micron-level Precision for Vascular Access

The laser drilling machine for cardiovascular devices adopts a non-contact processing principle: a high-energy-density laser beam acts on the material surface instantaneously to trigger local vaporization or melting, thereby forming micropores. Compared with traditional mechanical drilling or electric discharge machining, laser drilling has unparalleled advantages:

1.High-precision control: The focused spot of the laser beam is extremely small, enabling high-precision control of micron-level (μm) pore diameters. It meets the stringent requirements for rib width consistency of the complex grid structure of vascular stents, and ensures stable geometric morphology when the stent is expanded in the blood vessel.

2.Non-contact processing: No physical contact is required during processing, which avoids material stress concentration, microcracks or deformation that may be caused by traditional cutting tools. It is especially suitable for processing superelastic shape memory metal materials such as nitinol.

3.Small heat-affected zone: By adopting ultra-short pulse laser technology (such as picosecond and femtosecond lasers), the heat-affected zone (HAZ) can be controlled within an extremely small range (e.g., ≤5μm), effectively reducing changes to the material's microstructure, improving the biocompatibility of finished products, and lowering the risk of thrombosis.

4.Flexibility and efficiency: Through computer numerical control (CNC) programming, holes of any complex shape (such as round holes, square holes, special-shaped holes) can be processed flexibly, featuring fast processing speed and high repeatability, which is suitable for large-scale mass production.

II. Application Scenarios: Precision Manufacturing from Stents to Catheters

The cardiovascular device drilling machine from JiaJiaYong Laser is widely used in the manufacturing process of the following key medical devices:

1. Micropore processing for vascular stents

• Drug-eluting stents (DES)

  Micron-level drug storage holes or grooves are processed on the surface of metal stents to carry anti-proliferative drugs (such as paclitaxel and rapamycin). Laser drilling technology ensures the uniform distribution and controlled release of drug coatings, extends the duration of drug action, and reduces the risk of restenosis.

• Biodegradable stents (BVS)

  For biodegradable polymer materials such as polylactic acid (PLLA), the laser drilling machine adopts a "cold processing" mode to avoid material carbonization or performance degradation caused by thermal degradation, ensuring stable mechanical properties of the stent during its degradation in vivo.

• Surface modification

  Micro-nano structures are processed on the surface of stents to increase the specific surface area, promote the rapid migration and coverage of vascular endothelial cells, accelerate stent endothelialization, and reduce the incidence of late-stage thrombosis.

2. Drilling for balloon catheters and interventional catheters

It is used to fabricate perfusion holes or drug delivery holes on balloon dilation catheters. The laser drilling machine can achieve accurate hole opening on soft polymer catheters (such as PU, PE, and silicone tubes), with smooth and burr-free edges, avoiding scratches on the vessel wall or generation of debris during intravascular operation.

3. Other cardiovascular implants

For devices such as cardiac occluders, vascular filters, and artificial heart valves, precision drilling is required to realize the functions of connection, fixation or blood flow passage.

III. Customized Solutions from JiaJiaYong Laser

As an enterprise focusing on the R&D and production of laser equipment, JiaJiaYong Laser provides customized drilling solutions to meet the high-standard requirements of cardiovascular devices:

1.Equipment customization: According to the material properties (metal/non-metal), pore size and processing accuracy requirements of customers' products, we configure lasers with different wavelengths (such as infrared, green light, ultraviolet) and powers, as well as high-precision motion platforms (such as galvanometer scanning system, precision rotating stage).

2.Process development: We have a professional application engineering team that can develop optimal laser parameters (such as power, frequency, pulse width, scanning speed) for stents or catheters of different materials, and solve process problems such as heat accumulation and slag residue during processing.

3.Whole-process service: We provide full-process technical support from drawing design, sample prototyping to mass production, ensuring that product quality meets the strict standards of the medical device industry (such as the ISO 13485 quality management system).

IV. Conclusion

The laser drilling machine for cardiovascular devices is not only a reflection of the technical strength of JiaJiaYong Laser, but also a bridge connecting advanced manufacturing technology and clinical medical needs. In the era of precision medicine, with the precision and efficiency of "light", this sophisticated equipment is building safe and effective life-supporting devices for countless patients with cardiovascular diseases, and promoting the continuous advancement of minimally invasive interventional medicine.