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Wire electrical discharge machining or EDM, is the process by which hard metals, which previ

According to USFDA, a combination product is one composed of any combination of a drug and device; biological product and device; drug and biological product

ously could not be manipulated or machined by conventional methods, can be machined and desi

; or drug, device, and biological product and fixed dose combination would include two or more combinations of drug.

Examples of combination products may in

gned with electrical erosion.

The electrical discharge begins at the time when an electrica

lude drug-coated devices, drugs packaged with delivery devices in medical kits, and drugs and devices packaged separately but intended to be used together.

lly charged wire is moved very close to the object being machined. The electrically charged

here is enormous increase in the number of combination products entering the market in the recent years. Combination products have proven advantages but fixe

wire electrode leaves a path on the object, which is slightly larger than the wire. Most oft

d dose combinations are still in the process of convincing regulatory authority on their advantages over the single ingredient formulations.

Combination pro

en a 0.010' wire is used which creates a 0.013' to 0.014' gap. The wire electrode once passe

ucts have become life saving products for the pharmaceutical companies who doesn’t have many innovative molecules in their product pipeline and have been inc

d through the piece cannot be reused.

However, there is one limitation of wire EDM. Only el

easingly used in the product life cycle management. Even the companies having product patents are trying to extend their product life cycle through the combi

ectrically conductive metals can be molded or machined with wire EDM. It enables mold makers

nation products and maximize the revenues. But the companies involved in this practice are overlooking that they are burdening the patients both economically

to create many more convoluted items from metal, which previously were unable of being work

and physically. They need to rightly judge the benefits of the combination products and they have to even look at the risks involved when combining the produ

ed upon. Wire electrical discharge machining systems are extensively used in the electronic

ts. Some of the combination products were well accepted by physicians while others suffered. Companies involved in development of combination products are fi

and aerospace sectors for prototyping and manufacturing various parts. These systems have pr

ding difficulty in defining their combination products and facing various challenges from selecting a combination to marketing it.

Following aspects would a

oved to be of great help to jewelry designers as well. It is now more convenient to work on

dd to the challenges in developing combination products:

Which markets to tap where the combination products can do fairly well?
Which combination prod

intricate jewelry and wire EDM even facilitates cutting 3D shapes. Artists working with meta

cts are meaningful and rational?
Which therapeutic categories to select?
Which Combinations can address unmet needs of the patients?
Do combin

ls prefer the wire EDM systems.

Mainly articles of steel and titanium are worked upon with

tions increase the patient compliance?
What would be the developing cost?
How to tackle the risks encountered during combination product developmen

a wire EDM. Joseph Priestly invented the wire EDM in 1770. Though the initial model was very

t?

As combination products don't fit into the traditional categories of drugs, medical devices, or biological products, the USFDA is in the process of devel

imprecise and prone to failures, it was fully developed by 1980 and developed into a machin

ping new procedures for reviewing their safety, efficacy and quality.

Professional from academic institutions, pharmaceutical industries, health care indust

e tool. Wire EDM has become popular and is now a key component in the manufacture of injecti

y and representatives from various regulatory agencies are working out to design the regulatory requirements for manufacture and sale of combination products

on molds and metal stamping dies.

Wire electrical discharge machining provides the advantag

.

As there is an increasing trend of the combination products companies manufacturing such products should be able to tackle the problems involved in the de

e of only the targeted metal being removed in the cutting process and no burrs are created o

elopment. They need to be wiser in analyzing the market trends and the regulatory requirements.

Companies that provide selfless information through particip

n the surface. This greatly helps in saving time, especially with small and intricate shapes

tion in industry events and feedback to regulatory authorities would be able to face the challenges and will be successful in developing combination products

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