Introduction
In an era where minimally invasive interventional procedures are increasingly prevalent, the “Flexibility” and “pushability” of consumables such as catheters and guidewires often depend on a seemingly inconspicuous yet critical internal component—the multi-strand precision spring. As one of the few domestic technology enterprises specializing in the research, development, and mass production of medical-grade multi-strand springs, Shenzhen Zero Origin Technology Co., Ltd. (Exhibition Booth: 2C705) will make its debut at Medtec 2026 (the 20th International Medical Device Design and Manufacturing Technology Exhibition), comprehensively showcasing its core manufacturing capabilities in areas including multi-strand guiding spring tubes, sheath springs, variable-diameter springs, and synchronous forming of wires/stainless steel strips.
Focusing on “Softness and Resilience”: The Reconstructed Value of Multi-strand Springs in Interventional Medical Devices
In cardiac interventional, neurointerventional, and endoscopic diagnostic and therapeutic devices, traditional single-strand springs or simple winding structures often suffer from limitations such as insufficient snake-like torsional control, attenuated transmission of pushing force, and poor flexural resistance. To address these challenges, multi-strand wire synchronous winding technology has been developed—this technique involves synchronously winding multiple hair-thin steel wires (typically 3, 6, 12, or even more strands) at a specific pitch and twist direction to form a composite tubular structure that exhibits high flexibility, excellent torque transmission efficiency, and superior compressive strength.
However, the manufacturing of multi-strand springs presents significant challenges: the difficulties lie not only in maintaining precise tension during high-speed winding of multiple steel wires, but also in end processing (without burrs or strand separation), stress relief through heat treatment, and subsequent compatibility with polymer materials. Shenzhen Zero Origin Technology Co., Ltd. has successfully overcome these critical process bottlenecks, establishing itself as a key upstream supplier enabling domestic manufacturers of interventional devices to achieve localized production of high-end catheters/wires.
Shenzhen Zero Point Origin Technology Core Product Matrix
At booth 2C705, Shenzhen Zero Origin Technology will showcase three major product series, with several of their manufacturing processes having reached or approaching internationally advanced standards.
1. Multi-strand guide catheter spring tube (core product)
Product Features: Utilizing a multi-strand steel wire synchronous winding process in the same or opposite directions, the tube exhibits a dense structure with exceptional flexibility and torsion resistance. The uniform inner diameter ensures smooth and unobstructed passage through guidewires.
Medical Applications: Widely used as the internal support layer for minimally invasive interventional guidance catheters, contrast catheters, microcatheters, and extension catheters, significantly enhancing device passage capability and torque control in tortuous blood vessels.
Technical highlights: Customizable number of shares (3–16 shares), variable-diameter design (flexible distal end, rigid proximal end), and composite winding configuration to meet the specific mechanical requirements of different interventional sites.
2. Multi-strand sheathed spring and push rod
Product Characteristics: Possesses high tensile strength and efficient force transmission, with a smooth surface that ensures excellent adhesion to coatings. Effectively prevents instrument deformation or fracture within the body.
Medical applications: Suitable for sheaths and propulsion components of thrombectomy stent delivery systems, valve delivery systems, and endoscopic biopsy forceps.
3. Precision Special-shaped Springs (Flat Wire/Variable Diameter/Variable Span)
Product Features: Overcoming the limitations of traditional circular wires, it enables simultaneous winding of flat steel wires and provides multi-stage composite springs with variable diameters, pitches, and number of strands, meeting the increasingly complex structural requirements of interventional devices.
Precision Manufacturing: Full-Process Control from “Winding” to “Forming”
Shenzhen Zero Point Origin Technology fully recognizes that the reliability of medical-grade multi-strand springs is directly critical to patient safety. The company has established a comprehensive manufacturing process chain, encompassing raw material selection (medical-grade 304V,316LVM, nickel-titanium wires, etc.), synchronous multi-strand winding, precision laser cutting (port processing), vacuum heat treatment, and comprehensive inspection with imaging measurement.
Tension closed-loop control system: Ensures that tension fluctuations of multiple steel wires during high-speed rotation remain within an extremely narrow range, eliminating defects such as wire dispersion or thread breakage.
End damage-free treatment: The spring port is processed using ultrafast laser to ensure a smooth surface free of burrs and without damaging the outer layer of the catheter.
100% comprehensive inspection standard: Utilizing high-definition imaging measurement instruments and standard gauge/stop gauge testing, it ensures that the inner diameter, outer diameter, length, and stiffness of each spring comply with the specified requirements in the technical drawings.
Meeting at 2C705: Providing a “skeletal” foundation for the domestic production of high-end interventional devices
Medtec 2026 will be held for the first time at the Shanghai New International Expo Center, bringing together over 1,100 global enterprises in the medical device design and manufacturing supply chain. For R&D engineers working on interventional devices, although the spring is small, it plays a decisive role in determining the device’s success through its tactile feedback and safety performance.
Through this exhibition, we hope to help more domestic medical device manufacturers recognize that high-end multi-strand springs can not only be manufactured in China but also achieved with greater precision, faster production times, and cost advantages. We not only provide standard-sized spring tubes but are also willing to collaborate with customers on innovative device designs, offering comprehensive parameter customization development ranging from winding schemes and strand configurations to heat treatment processes.
We cordially invite you to visit Booth 2C705 at the Shanghai New International Expo Center, where you can personally handle and test these compact components—measuring just one or two millimeters in outer diameter yet embodying precision engineering—and engage in in-depth discussions with our technical team on how to leverage springs as the core element to enhance the performance of your next-generation interventional products.
About Shenzhen Zero Point Origin Technology Co., Ltd.
Shenzhen Zero Origin Technology Co., Ltd. specializes in the research, development, manufacturing, and sales of multi-strand precision springs for medical minimally invasive interventional devices. The company possesses multi-axis precision spring winding equipment and a comprehensive post-processing inspection system. Its product portfolio includes multi-strand guide catheter springs, sheath springs, variable-diameter springs, and flat springs, providing long-term ODM/OEM supporting services to numerous domestic Class III interventional device manufacturers. Guided by the quality philosophy of “Zero Defects, Source Precision,” the company contributes to the independent innovation of high-end interventional consumables in China.
Booth Number: 2C705
Exhibition date: September 1–3, 2026
Exhibition Location: Shanghai New International Expo Center (2345 Longyang Road, Pudong New Area)