1. Field of the Invention
The present invention concerns a holding device for blood collection devices.
2. Description of the Related Art
The already known blood collection devices are either syringes or those that demand the use of tubes with a vacuum treatment.
The blood colletion devices that demand the use of tubes with a vacuum treatment reveal two problems that the invention disclosed by this application solves through the substitution of tubes with a vacuum treatment by tubes without a vacuum treatment.
The first problem that the tubes with a vacuum treatment reveal is that they do not allow the person who manipulates the devices to correctly control the collection pressure of the blood that is carried by the vein because said collection pressure depends on the tube volume. Said unproper control carries as a consequence other problems. These problems are the following: a) It increases the hemolisis risk and, as a consequence, it reduces the quality of the blood samples; b) It makes difficult the obtainment of blood samples whenever the veins are very thin (e.g.: patients suffering from vein difficulties and children), increasing thrombosis or vein collapse risks.
The second problem that the tubes with a vacuum treatment reveal is that it is easy to loose the vacuum while manipulating the devices preventing the blood from being drawn into the tube.
Those problems appear while using, as for instance, devices disclosed by patents U.S. Pat. No. 6,024,710, EP 867.378 A2, and JP 1.291.830 A2.
On the other hand, the use of syringes for the collection of blood samples has two other characteristics that carry some problems that the invention that is claimed solves.
Firstly, the use of the syringes does not reach the higher level of the necessary asepsis for the correct manipulation of the blood samples. Said devices are opened so the blood can leak during their manipulation.
Secondly, while using the syringes, the blood is drawn into the tube only once it has been collected by using the syringes. That is to say, there are two consecutive actions, and this fact turns the quality of the blood sample risky.
The Applicant does not know of any other device comprising tubes without a vacuum treatment, enabling exactly the same manipulation quality offered as those devices comprising tubes with a vacuum treatment and that, in addition, solves the problems that said devices reveal and fulfills the asepsis and blood sample quality levels as the one disclosed in this application does, and has been disclosed before the priority date that is declared in this application.