Medical Device Qualified Supplier Directory
Pulse Systems Company Profile
Qualifications: ISO 9001, ISO 13485, Supplier to Medical Manufacturers, Exhibitor in at least 2 MD&M and/or MEDTEC shows
Markets Supplied: North America, Europe
Pulse Systems provides contract manufacturing services to the medical device industry for precision laser machining and processing of thin-wall tubular metal components, sub-assemblies, and implants. Among the breadth of services we offer are:
- Laser Cutting
- Nitinol Shape Setting / Heat Treating
- Corrosion Testing / Passivation
- Laser Welding
- Cleanroom Assembly
- Stent Manufacturing
- CNC Machining
We participate with our customers in the entire product life cycle, from rapid turnaround for low-volume engineering prototypes all the way through cost-effective volume production in 100,000+ quantities.
Laser machining is the core competency of our business. We have developed specific programming methodologies that enable us to efficiently laser cut designs that our competition cannot process. Whether your design is an intricate, tight tolerance, fragile part or a tube with a few features with wide tolerances, you can be assured we can make cost effective parts in prototype and production quantities.
- Cut tolerance of +/-0.00002
- Kerf width: down to .0005"
- Wall thickness: 0.002" to 0.025"
- Tubing diameter range: 0.008" – 0.700" OD
- Stainless Steel
- Nitinol (NiTi)
- Cobalt Chromium
- Please contact us regarding other materials
Permanently implantable medical devices such as stents and filters use electropolishing as a critical final surface finishing step.
While mechanical processes may polish and chemical processes may passivate, electropolishing does both. When electropolishing, the metal work piece is connected to the positive terminal of a DC power supply and immersed in a temperature controlled bath of electrolyte. The negative terminal of the power supply is attached to a separate electrode in the bath. When voltage is applied, current flows through the bath removing material from the work piece. It is this material removal that polishes the work piece.
The imperfections inherent to micromachining nitinol may negatively affect the performance and reduce the service life of a particular device. Subsequently, electropolishing is often critical to the functionality of the final Nitinol device. In nitinol this process removes surface imperfections while creating a thin uniform titanium oxide layer (TiO2) that improves biocompatibility and reduces corrosion. The nearly nickel-free TiO2 layer of electropolished Nitinol has been shown to be an excellent source of corrosion protection.
Electropolishing benefits stainless steel parts in ways similar to nitinol, but the mechanisms are different. Instead of a titanium oxide layer being formed, the corrosion improvements come from the removal of free iron from the surface of the material.
Our experienced engineers understand that there are different electropolishing requirements for different medical devices. We work with our customers on their unique electropolishing needs, which range from minimal material removal to micro-polished surfaces. Minimal material removal may refer to as little as 10% material removal, while micro-polishing the surface of a part may exceed 40% material removal. However, both of these values may vary greatly depending on the type of material and geometric configuration of the device. Please contact Pulse Systems and let our experienced engineers work with you on your specific needs.
- Nitinol, Stainless Steel, Cobalt Chromium
- Exceptional repeatability and predictability
- Removes slag, machining artifacts, and heat affected zones (HAZ) that result from thermo-cutting processes (e.g., laser, and EDM machining)
- Eliminates surface irregularities
- Rounds sharp edges
- Improves performance characteristics of Nitinol parts
- Dramatically enhances corrosion resistance
- Improves surface reflectivity and brightness
- Provides the most superior form of passivation of Stainless Steels and Nitinol
- Removes metallic and non-metallic inclusions introduced by manufacturing
The process of laser welding is the joining of two metal parts using infrared laser energy. The parts are fixtured so that they can be fused together in a non-contact manner.
This process does not use filler metals and is done in an inert atmosphere, so that impurities are not introduced into the finished assembly. Laser welding is a very effective method for joining thin-walled tubular components used in medical devices.
- Computerized 4-axis Nd:YAG laser welding workstations
- Component assembly fixturing
- Weld types: spot, seam, butt, lap, circumferential, penetration
- Minimum spot size: .004"
- Welding of similar & dissimilar metals
- Stainless to Platinum, Gold, Tantalum, or Copper
- Copper to Nickel Chromium alloys
- Nitinol to Tantalum o Stainless to Nitinol (limited strength)
- Cleanroom environment
The defining term in microblasting is micro—very small. The technology is used to ...
For more information contact Pulse Systems