One hundred years later, in , oxygen was used to pioneer new techniques in the medical field. Prior to the late 19th century, there had been no way to effectively store oxygen.
However, with the invention of the oxygen cylinder—or the oxygen therapy apparatus—in , oxygen was now able to be put to use in general anesthesia or for surgical procedures. Leapfrog into the mid-twentieth century, when new medical advances were made with oxygen. In the s, for example, Dr. This was a significant advancement in the field.
During that same time period, three other medical practitioners: Coats, Gilson, and Pierce, were able to use oxygen in small, portable cylinders to treat patients with lung disease, noting significant improvements in their symptoms.
It was in , that he met Priestley who told Lavoisier of the discovery of dephlogisticated air. Lavoisier began to conduct his own experiments on Priestley's pure form of air. He observed that the element was part of several acids and made the assumption that it was needed to form all acids.
Based on this incorrect thought, Lavoisier used the Greek words oxy acid and gene forming to coin the French word oxygene—translated to oxygen in English—sometime around There is yet a third man who is credited for his involvement in the discovery of oxygen in about Carl Wilhelm Scheele, a Swedish pharmacist and chemist, discovered that a certain element Scheele also thought it to be phlogiston was needed in order for substances to burn.
Scheele called this element "fire air" due to it being needed for combustion. During these experiments with fire air, Scheele also discovered "foul air," now known as nitrogen. Despite the fact that Scheele had isolated oxygen before Priestley, Priestley published his findings first.
The raw materials to produce an oxygen tank are liquid air and aluminum. The aluminum starting stock is cast The liquid air is condensed and heated until pure oxygen remains then distributed into the aluminum tanks.
A compressible Teflon ring is used to form the o-ring, which is placed in the o-gland forming a seal between the valve and the cylinder. The o-ring gland is a precision depression machined in the top of the cylinder. When the valve is screwed in the cylinder and when completely seated, it compresses the o-ring and completes the airtight seal between the valve and the cylinder.
Oxygen tanks vary in size, weight, and function but the manufacturing process is very similar. The store will not work correctly in the case when cookies are disabled. Although home and portable oxygen concentrators have been widely available since the s, their use was limited and the units themselves were extremely expensive.
Luckily today, there are a wide variety of units for varying lifestyles, needs, and price ranges. Let's take a trip back through time and learn about the development of oxygen therapy technology through the centuries!
That being said, Scheele is still recognized as being the first man to even figure out what oxygen is. F rom there, it took a little under years for scientists and doctors to understand how to use oxygen to help those with varying illnesses and diseases.
In , the first ever recorded use of oxygen was documented for a medical purpose. This medical procedure was to treat a patient with pneumonia. This revolutionary treatment was administered and pioneered by Dr. This was translated to dollars and cents. DME companies thrived as this new, cottage industry was born. The oxygen concentrator was a large machine that filtered oxygen out of room air. The machine was and is essentially a compressor that sucks air in.
The air is run through sieve beds that filter out nitrogen and other components, putting out relatively pure oxygen. They weighed a hundred or more pounds and were bulky. They also used a lot of electricity and had no battery backup.
At that rate, the medical equipment provider could provide backup cylinders. Many companies also sent out a respiratory therapist for a monthly visit. These clinical respiratory visits became an industry standard in many parts of the country.
Concentrators became smaller and more efficient. Unfortunately for many companies, as the technology advanced, the reimbursement declined.
0コメント