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Single Lumen Vascular Catheter with Spiral Cut Tip

IP.com Disclosure Number: IPCOM000198588D
Publication Date: 2010-Aug-10
Document File: 1 page(s) / 397K

Publishing Venue

The IP.com Prior Art Database

Abstract

In one aspect, the invention comprises a single-lumen catheter in which 3-5 centimeters of the catheter wall nearest the tip end are spirally cut about the central axis of the catheter lumen, allowing the wall to assume a relaxed configuration. The spiral-cut section of the catheter way optionally comprises a backbone made of a water-soluble polymer which allows the catheter, once in place, to assume a beehive shape. In another aspect, the invention comprises a single lumen catheter with a tip arranged in a spiraling or corkscrew manner about a central non-lumenal axis, which central non-lumenal axis is parallel to the axis of the catheter lumen near the suture wing.

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Single-Lumen Vascular Catheter with spiral-cut tip

            Single-lumen vascular catheters can be used to infuse solution into vascular sites of interest such as the superior vena cava.  During infusions, particularly high-pressure infusions, forces acting at the catheter tip may cause the catheter to move within the vasculature, potentially delivering infusate to undesirable sites or causing damage to vessel walls.  The invention herein allows the catheter tip to resist movement due to forces exerted by the infusate at the catheter tip.

In one aspect, the invention comprises a single-lumen catheter in which 3-5 centimeters of the catheter wall nearest the tip end are spirally cut about the central axis of the catheter lumen, allowing the wall to assume a relaxed configuration.  The spiral-cut section of the catheter way optionally comprises a backbone made of a water-soluble polymer which allows the catheter, once in place, to assume a beehive shape.

In another aspect, the invention comprises a single lumen catheter with a tip arranged in a spiraling or corkscrew manner about a central non-lumenal axis, which central non-lumenal axis is parallel to the axis of the catheter lumen near the suture wing.

Figure 1 illustrates the extent of the spiral-cut catheter tip region:

Figure 2 provides an illustration of a spiral cut which allows the catheter wall to assume a relaxed configuration:


Document headers and footers

A/73445612.1

A/73445612.1