BarterBarter it’s a verb that can be used to refer to a modification or yet change. For instance: “The government announced that it is going to change the name of the Ministry of Defense to the Ministry of Security and Control”, “With some measures, we can turn the recession into progress”, “I think the world should exchange violence for dialogue”.

Based on these meanings, the concept is used in different contexts. It is known as barter to the act and result of bartering: “I proposed to him to exchange my motorcycle for his car, but he still has not decided”, “On the weekend there will be a barter market in my neighborhood square: I am going to try to exchange the books that I have already read for others”, “Do you want to exchange your furniture for mine? So we would both renovate the home without spending money “.

Barter can also be linked to a change in position or place: “I think I am going to exchange Agustín from the sector: I think he will be more useful in the Sales Department than in the administrative area”, “I proposed to that man that we exchange the seats, but he did not accept”, “Both clubs agreed to exchange their goalkeepers”.

It is important to note that the term trocar can also come from the French word trocart. In this case, a trocar is an element that is used in surgical interventions. It is an awl, covered by a cannula (a hollow tube), whose tip It is triangular in shape. The laparoscopy, to cite one case, is developed with a trocar (known as laparoscopic trocar).

The trocar as a surgical instrument requires the use of a sleeve to act as an access port while performing a surgical procedure. intervention. Regarding the design of its tip, it is worth mentioning that it is constantly evolving, largely as a result of the search for more suitable materials for operations. Transparency, for example, is one of the most important factors when placing the trocar within the thoracic or abdominal cavity.

BarterIt is a very simple instrument, since it is nothing more than a metallic tube of little apparent complexity that is used to insert robotic devices. In addition to metal, they have a valve disposable plastic, thanks to which the useful life of the trocar is extended. There are many inserts (which are also called stilettos), with various designs to place in the body cavity causing almost insignificant trauma.

Although the appearance of a current trocar shows it as an avant-garde article, it is interesting to note that similar devices have been used for centuries: as early as 30 BC. C. Aulus Cornelius Celso speaks of one of his predecessors in the encyclopedia «From Medicine«, Composed of eight books, where he dealt with topics such as surgery, pharmacy and diet; Almost a millennium later, the physician Albucasis described a very similar instrument in his encyclopedia titled «Kitab al-Tasrif«. Of course, the name “trocar” did not appear until the 18th century and comes from the French, as mentioned above.

At that time, the trocar was used with the aim of drain gases or fluids from the body; in the field of urology, they served to guide surgical scopes into the bladder. The first process Documented laparoscopy dating from 1901, by the doctor George Kelling, originally from Germany, who observed the organs of the abdomen of a dog.

Despite the constant evolution of the trocar, it is interesting to note that the pyramidal tip that North American-born radiologist Benjamin Henry Orndoff documented in 1920 is the same type as the one used today.