Precision Medical PI Capillary Tubes Polyimide Material High
Insulation
Medical PI (Polyimide) capillary tubes are high-performance
medical-grade tubing made from polyimide through precision
extrusion and post-processing. They exhibit high temperature resistance (long-term stability up
to 350°C and above), excellent biocompatibility, low friction
coefficient, and high mechanical strength. Their core value lies in meeting the demand for high-precision,
high-stability, and low-biological-risk catheters in minimally
invasive interventions, neurosurgery, and cardiac procedures,
serving as a critical material for domestic substitution of
imported products.
PI performance test data
Mechanical Property
| Unit
| Specification
|
Density
| g/cm³
| 1.32
|
Tensile Strength
| MPa
| 95
|
Elongation at Break
| %
| 40
|
Flexural Strength
| MPa
| 138
|
Dielectric Strength (2mm)
| kV/mm
| 25
|
Heat Deflection Temperature
| °C
| 230
|
Continuous Use Temperature
| °C
| 250
|
Product features of medical PI capillary tube
- Excellent dimensional stability: Precision ±0.03mm, wall
thickness 0.05–0.5mm.
- Superior thermal resistance: No brittleness at low
temperatures; stable long-term use at 250°C.
- High insulation performance: Dielectric strength ≥300 kV/mm.
- Robust mechanical properties: Tensile strength ≥150 MPa,
elongation ≥10%.
- Chemical resistance: Medical PI Capillary Tube withstands most
solvents except strong acids/alkalis.
- Sterilization compatibility: Medical PI Capillary Tube survives
ethylene oxide, autoclaving, and gamma irradiation.
- Strong adhesion: Surface-treated for reliable bonding with
metals and other materials.
Key applications of medical PI capillary tube
Medical PI capillary tubes are pivotal in minimally invasive and
precision medical fields:
1. Minimally Invasive Interventional Devices
- Guidewires/Catheters: Medical PI capillary tube is used in
cardiovascular interventions (e.g., coronary angiography, stent
implantation), neurointerventional procedures (e.g., aneurysm
embolization), and peripheral vascular interventions. Their high
flexibility and kink resistance minimize vascular injury during
complex anatomical navigation.
- Stone Retrieval Baskets: In urological surgeries, medical PI
capillary tube can ensure stable deployment in ureters/bile ducts
for effective stone capture.
2. Implantable Medical Devices
- Electrode Catheters: Serve as carriers in neurosurgery (e.g.,
epilepsy focus localization) and cardiac electrophysiology (e.g.,
radiofrequency ablation). Low dielectric constant and high
insulation reduce signal interference.
- Artificial Ligaments/Tendons: Combines rigid PI fibers with
flexible filaments and nano-silver coatings to promote osteogenesis
and tissue repair in orthopedic implants.
3. Drug Delivery Systems
- Micro-Dose Pump Components: High-precision inner diameters
(down to 0.05mm) and low friction enable precise dosing of
anticancer drugs or insulin, minimizing waste/side effects.
- Targeted Drug Delivery Catheters: Surface-modified (e.g.,
antibody conjugation) for targeted release in tumors or diseased
tissues.
4. In Vivo Monitoring Devices
- Microfluidic Chips: High transparency and corrosion resistance
make them ideal for biosensors and cell-analysis chips, enabling
real-time monitoring of glucose, blood pressure, or inflammatory
markers.
FAQ of medical PI capillary tube
1. Q: What industries commonly use medical PI capillary tubes?
A: Medical PI capillary tubes are widely used in minimally
invasive interventional devices (e.g., catheters, guidewires) and
implantable medical systems (e.g., neurostimulation electrodes,
artificial ligaments) due to their biocompatibility and high
thermal stability.
2. Q: Why are PI capillary tubes preferred in neurosurgical
applications?
A: PI capillary tubes are ideal for neurosurgical applications like
epidural electrocorticography (ECoG) electrodes because of
their flexibility, electrical insulation, and long-term stability
in harsh physiological environments.
Tags: #Precision Medical PI Capillary Tubes, #Polyimide Material, # High Insulation, #Customized
