Light-guided transluminal catheter

a transluminal catheter and light-guided technology, applied in the field of medical devices, can solve the problem of only being able to achieve the technique, and achieve the effect of easy detection

Inactive Publication Date: 2007-03-29
CHILDRENS MEDICAL CENT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0016] Another embodiment of the invention is directed to a transcutaneously viewable catheter wherein the illumination source emits more light at its end than elsewhere therealong, so that it is possible to easily discern its path and end from outside the body.

Problems solved by technology

However, this technique is only possible in cases where the catheter is of a relatively small diameter and not significantly larger than the guide wire.
However, there are patients (especially the elderly and newborns) wherein their blood vessels are not easily visible and the initial needle puncture may default to a hunt-and peck routine to find the elusive vessel.

Method used

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Examples

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Embodiment Construction

[0036] In general, the present invention is directed to medical devices and more particularly to a light-guided catheter for direct visualization of placement through the skin. The catheter may be placed intracorporeal (inside the body) by any of the catheterization techniques known to those skilled in the art, and the invention includes, but is not limited to intravenous, intraarterial, or intraluminal placement of the catheter.

[0037] One embodiment of a light-guided transluminal catheter device 100 is depicted schematically in FIG. 1. A multi-lumen catheter 102 is shown having been inserted through the patient's skin 104 and into the blood vessel lumen 106 over the guidewire 108 via the usual insertion techniques (e.g., the Seldinger technique mentioned earlier). A similar catheter without initial guidewire may also be inserted directly through the lumen of the puncturing needle. This is commonly done in the case of peripherally-inserted central catheters (PICC) inserted in an ex...

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Abstract

Generally, the present invention is directed to a light-guided catheter for direct visualization of placement through the skin. An embodiment of the invention includes a method for transcutaneous viewing and guiding of intracorporeal catheters into a body that comprises inserting a catheter into the body having at least one lumen and internally illuminating the catheter with light capable of propagating through the blood and tissue to an external viewer outside of the body.

Description

FIELD OF THE INVENTION [0001] The present invention is directed generally to medical devices and more particularly to a light-guided catheter with inside-out transcutaneous illumination and visualization of placement through the skin including a method to locate non-visible blood vessels for catheterization. BACKGROUND [0002] Generally to insert a catheter into a blood vessel, the vessel is initially identified via aspiration by a syringe with an attached hollow needle by a technique commonly referred to as the Seldinger technique. When blood is drawn into the syringe this indicates that the vessel has been found. The syringe is then disengaged from the needle and the needle lumen is occluded to prevent a possible air embolism and / or to prevent excessive bleeding. Thereafter, confirmation of needle placement in the vein or artery can be assured by haemodynamic monitoring or checking for pulsatile blood flow. Then, a thin guide wire is introduced, typically through the syringe needle...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61B6/00
CPCA61B18/24A61B19/54A61B5/1535A61B5/150748A61B2019/5445A61B5/15003A61B90/39A61B2090/3945
Inventor IMAM, FARHAD B.
Owner CHILDRENS MEDICAL CENT CORP
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