Sealing cap and blood collection set for body fluid container

Abstract

The invention relates to a sealing cap (1) for a fluid container (3), especially a blood collection tube, the sealing cap (1) comprising: an inner cap (4) to be placed on an opening in the fluid container (3) forming a mouth, the inner cap (4) comprising a shielding means (7) configured to seal the mouth of the fluid container (3), an outer cap (5) testing on the inner cap (4), the outer cap (5) being movable relative to the inner cap (4), a channel member (9) providing a fluid channel opening in the outer cap (5), wherein by a rotational movement the outer cap (5) is movable between an first position in which the channel member (9) is located separated from the shielding means (7) and a second position in which the channel member (9) extends through the shielding means (7), thereby establishing an open state of the shielding member (7), and guiding means, configured to guide the outer cap (5) relative to the inner cap (4) in the rotational movement between the first and second position. ( Fig. 1 )

Description

technical field [0001] The present invention relates to a sealing cap for a body fluid container and a blood collection device for collecting blood samples. Background technique [0002] Many containers for collection and storage of body fluids are known in different forms. In these containers the blood collection device is arranged as a blood collection tube. In the state of the art, blood collection tubes are usually provided with a thick rubber stopper (also called a cap) which can be pierced with greater force by a sharp needle. The collection tube is used as the main container in the laboratory analysis machine. Today, it is "customary" practice in laboratories for blood collection tubes to be opened by removing the cap manually or with a decapper before placing it in the analysis machine. [0003] Bodily fluid containers have been proposed with caps, whereby the rubber stopper is pre-punctured with a plastic device to create an opening through which suction can take...

AI Technical Summary

Problems solved by technology

All these systems cannot be formed independently and are therefore also eliminated from the market

[0004] A disadvantage of the prior art devices is that both of the above methods require special devices and specific equipment to provide the high force necessary to penetrate the cap

This usually leads to damage to the tube container and thus to contamination of the device, which is exactly the opposite of the desired goal (ie more or less contamination-free suction from a "closed" tube container)

The disadvantage of other methods is that the hollow needle has to be cleaned, or in the case of direct suction through the stop of the vacuum container, the forces have to be particularly high, so precise suction is not possible due to the resulting negative pressure in the tube container Small amount

Another disadvantage of the prior art solutions is that tube containers without the above mentioned devices are usually opened (de-capped) before they are placed in the analytical equipment and therefore have to be re-sealed (re-capped) before being stored in the refrigerator

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