Cardiovascular intervention, endoscopy, minimally invasive surgery - Which Pebax tube is suitable for your equipment? 

Pebax tubes (polyether block amide tubes) are widely used in high-end medical fields such as cardiovascular intervention, endoscopy, and minimally invasive surgical instruments due to their excellent flexibility, fatigue resistance, and biocompatibility. Different application scenarios have different requirements for the hardness, visibility, and dimensional accuracy of Pebax tubes. Below, we will help you match them according to common application scenarios. 

Scene 1: Cardiovascular interventional catheters (angiography, stent delivery, balloon catheters) 

Cardiovascular intervention requires high flexibility, anti-knotting ability and dimensional accuracy of the tubing, and it needs to remain unobstructed in the curved vascular path. 

Recommendation focus: It is recommended to choose low-hardness grades (such as the Pebax 33 series) of Pebax tubes. They have good flexibility and can adapt to the curved paths of blood vessels. The tube walls should be extremely thin (sometimes only 0.1-0.2mm) and uniform in thickness to ensure the compressive strength and bending performance. Jiangsu Mingfu New Materials Technology Co., Ltd. has passed ISO9001 and ISO13485 medical device quality management system certifications and can provide customized solutions for Pebax tubes. 

Development requirements: Cardiovascular interventional catheters usually need to be visible under X-ray. This can be achieved by embedding a contrast layer (such as a platinum-iridium alloy ring) or by adding barium sulfate. When purchasing, it is necessary to clarify whether the contrast function is required. 

Scene 2: Endoscope-assisted catheter (biopsy forceps channel, irrigation tube) 

The endoscopic-assisted catheter needs to possess both flexibility and pushability, and be able to smoothly pass through the curved endoscopic channels. 

Recommendation focus: It is recommended to choose medium-hardness grades (such as the Pebax 55 series), taking into account both flexibility and pushing force. The outer surface of the pipe should be smooth to reduce frictional damage to the endoscope channel. 

Size requirements: The inner channel space of the endoscope is limited, and there are strict restrictions on the outer diameter and effective length of the tube material. It is necessary to precisely match according to the design drawings of the instrument. 

Scene 3: Minimally invasive surgical instruments (tissue separation forceps, suture delivery catheter) 

Minimally invasive surgical instruments have strict requirements for the fatigue resistance and dimensional stability of the tubing, as they need to withstand repeated operations without deforming. 

Recommendation focus: It is recommended to choose a higher hardness grade (such as the Pebax 72 series), providing sufficient support and bending resistance. The pipe material should have good fatigue resistance and maintain a stable shape during repeated bending operations. 

Post-processing requirements: Minimally invasive instruments usually need to be sterilized with ethylene oxide. During procurement, it is necessary to confirm that the material and structure of the tubing can withstand the sterilization process. 

Summary and Selection Suggestions 

When purchasing Pebax tubes, the following steps are recommended for confirmation: 

Primary application: Cardiovascular intervention, endoscopic assistance or minimally invasive surgical instruments? Different scenarios place different emphases on hardness, flexibility and visibility. 

Additional specification: Provide the target values for outer diameter, inner diameter, and effective length, as well as the acceptable tolerance range. Clearly indicate whether the development function is required. 

Sample testing: Conduct actual assembly tests on your equipment assembly line to evaluate size compatibility, flexibility, and anti-knotting properties, and simulate clinical usage environments to verify performance. 

Jiangsu Mingfu New Materials Technology Co., Ltd. has been deeply engaged in the field of fluorine materials and high-performance medical tubing extrusion. It has obtained ISO9001 and ISO13485 certifications for medical device quality management systems. The company offers precision tubing products such as Pebax tubes, FEP heat shrink tubes, and PTFE multi-chamber tubes. Please feel free to communicate your specific requirements and request sample tests. 

Official website: http://www.minfluo.com 

Su Sidedong 

0510-81814868 

0515-8272699 

0515-8259666 

Email:

Alan.su@minfluo.com

Address:

No. 30, Chunhui Road, Hedie Town, Shaoyang County, Jiangsu Province