Optical coherence tomography catheter for elastographic property mapping of lumens utilizing micropalpation

Inactive Publication Date: 2012-10-18
ST JUDE MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0004]Embodiments of the present invention provide a catheter having a palpator that applies a directed fluid or mechan

Problems solved by technology

Such an approach tends to be slow and incapable of producing high strain gradients, thereby reduci

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  • Optical coherence tomography catheter for elastographic property mapping of lumens utilizing micropalpation
  • Optical coherence tomography catheter for elastographic property mapping of lumens utilizing micropalpation
  • Optical coherence tomography catheter for elastographic property mapping of lumens utilizing micropalpation

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Embodiment Construction

[0019]In the following detailed description of the invention, reference is made to the accompanying drawings which form a part of the disclosure, and in which are shown by way of illustration, and not of limitation, exemplary embodiments by which the invention may be practiced. In the drawings, like numerals describe substantially similar components throughout the several views. Further, it should be noted that while the detailed description provides various exemplary embodiments, as described below and as illustrated in the drawings, the present invention is not limited to the embodiments described and illustrated herein, but can extend to other embodiments, as would be known or as would become known to those skilled in the art. Reference in the specification to “one embodiment,”“this embodiment,” or “these embodiments” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention, a...

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Abstract

An optical coherence tomography (OCT) catheter, for performing high performance elastographic deformation mapping of tissues and plaques, comprises: a catheter having elongated catheter body extending longitudinally between a proximal end and a distal end along a longitudinal axis, the catheter body including a distal portion at the distal end and a catheter lumen; a palpator, disposed in the distal portion, to apply one of a directed fluid or a mechanical indenter to produce a surface-applied palpation force to a target area of the interior body to mechanically displace the interior body and cause elastographic deformation of the target area of one or more surface and subsurface tissues and plaques; and OCT imaging sensor, disposed in the distal portion, to direct and deliver OCT beam for OCT deformation detection including elastographic deformation measurement to provide elastographic mapping of the target area.

Description

RELATED APPLICATIONS[0001]This application is based on and claims the benefit of U.S. Provisional Patent Application No. 61 / 475,173, filed Apr. 13, 2011, the entire disclosure of which is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]The present invention relates generally to medical imaging, and more specifically to a catheter having a palpator that applies a tip-directed fluid or tip-directed indenter to cause elastographic deformation and an optical coherence tomography (OCT) imager to provide high speed elastographic property mapping.[0003]Vascular catheter based elastography palpation using OCT (OCTe) has been done using global (noninvasive) compression or using the natural blood pressure cycle as the palpation force inducing the observed tissue deformations. Such an approach tends to be slow and incapable of producing high strain gradients, thereby reducing the resolution of the elastographic property mapping and the speed at which the mapping is done. A mo...

Claims

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Application Information

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IPC IPC(8): A61B6/00A61B8/00
CPCA61B5/0053A61M25/007A61B5/02007A61B5/0066A61B8/485
Inventor SLIWA, JOHNLIU, YU
Owner ST JUDE MEDICAL
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