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etching PTFE liner tubing

PTFE is a non-stick material that is resistant to high temperatures and corrosion and is very smooth, and is widely used in military medical food, etc . However, when it needs to be bonded to the surface of another material, or in order to bond standard PTFE to another surface while combining the advantages of multiple materials, a process called “etching” is required etched ptfe liner.
Typical applications include the lining of chemically processed tubing or other equipment used in corrosive environments. When bonding is required, sodium ammonia etching is usually the most economical answer. This process uses a mixture of sodium and ammonia formulated to create a bondable surface quickly and efficiently.
Sodium/ammonia etching services meet all applicable commercial, military and federal specifications for surface preparation of all fluoroelastomer polymers, including. PTFE, PFA, FEP, ETFE, PCTFE, PVDF, PVF, etched ptfe liner etc.
From microchips to full-size rolls, any shape or complexity of fluoroelastomer polymer, including strips, sheets, tubing, molded shapes and machined parts in any configuration can be etched and bonded. This processing can be done on one or more surfaces, or selectively within tight tolerances.
We can custom etch products etched ptfe liner above ID 0.3mm

How did microcatheter technology evolve?

The second phase Microcatheter (1980s to early 21st century) was the emergence of early interventional microcatheters, with the development of the Magic microcatheter and Tracker microcatheter in France and the United States since the 1980s, which had a progressively thinner front end and could be bent at will, and the advent of digital subtraction X-ray machines, which made microcatheter technology move even further forward .

Microcatheter technology can be roughly divided into three stages. The first stage Microcatheter is the infancy of microcatheter endovascular technology, which was first pioneered by Professor Djindjian in France in the late 1960s and early 1970s with super-selective angiography of the external carotid artery and selective spinal angiography.

The third phase Microcatheter (after 2005) was the booming period of coronary microcatheterization, where the flexibility of guidewires, the application and enhancement of microcatheters, and the development of surgical strategies became the new direction of CTO-PCI. In 2005, Prof. Ge Junbo made a preliminary attempt to reverse intervention for CTO in a TCT broadcast. The case was a CTO lesion at the LM bifurcation with good collateral circulation from the RCA to the left crown. The guidewire was unable to pass through the lesion during the forward intervention. Finally, the Runthrough guidewire was reverse fed from the RCA to the LCX, followed by the successful completion of the antegrade guidewire and reverse guidewire Kissing wire. data from a study presented at TCT 2009 showed that the development of reverse technology has greatly improved the success rate of CTO procedures Microcatheter .

micro catheter with Medical Tubing ETCHED PTFE LINER

The micro catheter is a very small diameter reinforced catheter with no strict size definition, but is often empirically referred to as a microcatheter with an outside diameter of 0.70 to 1.30 mm. Microcatheters can be used for guidewire support/exchange, passage of lesions, delivery of embolic agents, stenting, etc.

The microcatheter is composed of a base layer of etched PTFE Liner , a middle layer of stainless steel woven mesh or nickel-titanium spring, and an outer layer of Pebax liner.
The head end of the microcatheter comes with a developer ring for easy positioning and consists of a handle (seat), strain relief sleeve, body, and marker. The body is designed and manufactured to play a key role in the performance of the microcatheter, and typically consists of an inner liner, an intermediate reinforcement layer, an outer polymer layer, and a surface coating.

The liner material is usually a lubricious material (e.g., etched PTFE Liner ) to ensure a smooth lumen; the intermediate reinforcement layer is usually woven or wound with metal wire to increase the strength and pushing force of the catheter. The design of the middle reinforcement layer represents the important properties of the microcatheter for different vascular lesions, e.g.,
The micro catheter the braid + wrap design allows for good proximal braid pushability and good distal wrap flexibility, which is a very good choice for neurovascular delivery, while for CTO lesions, the high stiffness of the braid can help them traverse calcification. In addition, the distal surface of the tubing is usually coated with a certain length of coating material (usually hydrophilic) to enhance the passage of the microcatheter through the vessels and lesions.