Arterial blood collection catheter system and related methods
The arterial catheter system addresses high shear stress issues by using an extension tube with controlled fluid resistance to minimize hemolysis and ensure efficient blood collection.
JP2026520208APending Publication Date: 2026-06-22BECTON DICKINSON & CO
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- BECTON DICKINSON & CO
- Filing Date
- 2024-05-30
- Publication Date
- 2026-06-22
Smart Images
Figure 2026520208000001_ABST
Abstract
An arterial catheter system comprises a catheter assembly including a catheter hub and an arterial catheter. An arterial catheter system comprises a needle assembly including a needle hub and a guide needle. An arterial catheter system comprises an extension tube coupled to the catheter assembly, and a fluid passage extending through the arterial catheter, catheter hub, and extension tube. The first fluid resistance in a portion of the fluid passage within the extension tube is greater than the second fluid resistance in the fluid passage distal to or proximal to the aforementioned portion of the fluid passage. The extension tube has a length L and an inner diameter D. The geometric coefficient G of the aforementioned portion of the fluid passage. f is L / D 4 It is equivalent to and selected to reduce hemolysis during arterial blood collection.
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