Anatomy of a medical Guide WIre Assemblie

Advances in technology have always made it possible to do the impossible. And nothing illustrates this definition more than what the guide wire assembly has done for the field of medicine, especially in surgical procedures. Thanks to this intricate mesh of 316 stainless steel coiled wires, surgeons have been able to reduce recovery time and the risk of post-surgery infections by being able to operate on a smaller scale, inside the body, without having to make more than one entry incision.

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How a Wire Assembly Is Made
A guide wire assembly is made up of two distinct wires: interventional and access. The access wire is typically made of stainless steel, with an outer dimension that is always consistent with the inner diameter of the hypodermic tubing that will be used during its surgical application. This is done so that there is never an inconsistency between the wires needed to insert the medical device, and the device itself.

The access wire will often have ribbon wire or larger diameter coiled wires welded to it, and then attached to the assembled mesh of guide wires referred to as the interventional guide wires. This outer assembly is often coated with PTFE (polytetrafluoroethylene), during processing. This is a plastic coating similar to that used in cookware, granting this outer assembly the same non-stick properties that the cookware has. During use, this part of the overall assembly is manipulated through the veins or arteries until it has reached its designated target. The coating keeps it from adhering to the vein walls, and the ribbon wires keep it in position so that it does not snag.

An Application Example
During the manufacture of this type of medical aid, the overall shape can be processed to fit the procedure it is needed for. The inner and outer wires can be curved, hooked or tapered, depending on the needs of the purchaser. The inner access wire can be shaped into segments, so that when it reaches the desired destination, it can be extended out beyond the limitations of the interventional net around it. Very often, a minute camera is attached near the front of the assembly prior to insertion so that its progress can be tracked throughout whatever vein, artery or organ it is being inserted into.

During the manufacture of this type of medical aid, the overall shape can be processed to fit the procedure it is needed for. The inner and outer wires can be curved, hooked or tapered, depending on the needs of the purchaser. The inner access wire can be shaped into segments, so that when it reaches the desired destination, it can be extended out beyond the limitations of the interventional net around it. Very often, a minute camera is attached near the front of the assembly prior to insertion so that its progress can be tracked throughout whatever vein, artery or organ it is being inserted into.

Summary
Delicate but durable, the guide wire assembly most often used in surgical procedures is an amazing blend of science and metal technology. Available in a wide variety of sizes and shapes, it has found use in medicine, robotics, electronics, and even avionic applications.