Plasma collecting device

• US 20010044615A1
• Filed: 05/16/2001
• Published: 11/22/2001
• Est. Priority Date: 05/16/2000
• Status: Active Grant

• Current Assignee: Fuji Photo Film Co Limited (Fujifilm Holdings Corporation)
• Original Assignee: Fuji Photo Film Co Limited (Fujifilm Holdings Corporation)
• Inventors: Mori, Toshihiro, Amano, Yoshikazu
• Granted Patent: US 6,659,975 B2
• Time in Patent Office: Days
• US Class Current: 604/413
• CPC Class Codes: A61B 5/15003 for venous or arterial blood
• CPC Class Codes: A61B 5/150213 Venting means
• CPC Class Codes: A61B 5/150351 Caps, stoppers or lids for sealing or closing a blood collection vessel or container, e.g. a test-tube or syringe barrel caps for bottles or containers in general B65D41/00
• CPC Class Codes: A61B 5/150389 Hollow piercing elements, e.g. canulas, needles, for piercing the skin
• CPC Class Codes: A61B 5/150488 Details of construction of shaft
• CPC Class Codes: A61B 5/150732 Needle holders, for instance for holding the needle by the hub, used for example with double-ended needle and pre-evacuated tube,
• CPC Class Codes: A61B 5/150755 Blood sample preparation for further analysis, e.g. by separating blood components or by mixing
• CPC Class Codes: A61B 5/154 Devices using pre-evacuated means

Abstract

A plasma-collecting devise comprises a blood-filtering element having a blood-drawing needle and a communicating needle, a vacuum blood-drawing tube, and a contracting and expanding element connecting the blood-filtering unit and the vacuum blood-drawing tube. The device enables blood drawing from blood vessel and blood filtering continuously to obtain plasma.

Claims

1. A plasma-collecting devise comprising a blood-filtering unit, a vacuum blood-drawing tube with a sealant, and a contracting and expanding element connecting the blood-filtering unit with the vacuum blood-drawing tube, wherein a blood-drawing needle is fixed on one side of the blood-filtering unit and a communicating needle, which is able to run into the vacuum blood-drawing tube through the sealant, is fixed on the other side of the blood-filtering unit.

2. The plasma-collecting device of

claim 1

, wherein the contracting and expanding element is a bellows.

3. The plasma-collecting device of

claim 1

, wherein the contracting and expanding element is a multi-foldable tube.