Catheter
First Claim
1. A method of sampling blood in vivo from within a length of a blood vessel, the method comprising:
- introducing a vascular catheter into a blood vessel over a guidewire, the vascular catheter comprising an elongate body section provided with a plurality of longitudinally spaced blood collection ports for collecting discrete blood samples within the body of the catheter;
deploying a static mixer, positioned upstream of at least one blood collection port, radially outwardly of the elongate body section to create a flow of blood from a boundary layer at a wall of the blood vessel around the periphery of the blood vessel, thereby to mix blood by splitting the flow of blood into two flows, rotating the resultant two flows by 90°
in opposite directions from each other, and then recombining the flows; and
,collecting discrete samples of mixed blood at the plurality of blood collection ports for subsequent analysis.
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Accused Products
Abstract
A catheter and associated method for taking a plurality of samples from within a length of a blood vessel. The catheter includes an elongate central body arranged to be inserted into and positioned along a central region of a blood vessel. A plurality of collection areas are defined along the elongate central body for collecting samples at the central region of the blood vessel. A plurality of mixers are provided radially outwardly of the elongate central body and arranged to create a flow of blood from a boundary layer at a wall of the blood vessel to the elongate central body. This enables the collection areas to collect samples from the boundary layer.
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Citations
9 Claims
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1. A method of sampling blood in vivo from within a length of a blood vessel, the method comprising:
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introducing a vascular catheter into a blood vessel over a guidewire, the vascular catheter comprising an elongate body section provided with a plurality of longitudinally spaced blood collection ports for collecting discrete blood samples within the body of the catheter; deploying a static mixer, positioned upstream of at least one blood collection port, radially outwardly of the elongate body section to create a flow of blood from a boundary layer at a wall of the blood vessel around the periphery of the blood vessel, thereby to mix blood by splitting the flow of blood into two flows, rotating the resultant two flows by 90°
in opposite directions from each other, and then recombining the flows; and
,collecting discrete samples of mixed blood at the plurality of blood collection ports for subsequent analysis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification