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Fiber optic sensor guided navigation for vascular visualization and monitoring

A technology of blood vessels and optical fibers, applied in the field of medical instruments, can solve problems such as unintentional cutting of branches, missed branches, blood leakage, etc.

Active Publication Date: 2015-03-18
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under these constraints, it is often possible to miss branches, resulting in branches being inadvertently severed without being stapled or cauterized in an appropriate manner
This can lead to leakage of blood through these collateral branches, often requiring repeated revascularization and additional surgery

Method used

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  • Fiber optic sensor guided navigation for vascular visualization and monitoring
  • Fiber optic sensor guided navigation for vascular visualization and monitoring
  • Fiber optic sensor guided navigation for vascular visualization and monitoring

Examples

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Embodiment Construction

[0015] In accordance with the principles of the present invention, systems and methods are provided that employ fiber optic shape sensing and localization (FOSSL) technology to improve and simplify coronary artery bypass graft (CABG) or other surgical procedures. FOSSL technology, or fiber optic shape sensing, makes optical fibers sensitive to strain and temperature. Surrogate variables such as flow, inflammation, tissue pressure / swelling, tissue contact, etc. can be measured indirectly (in the case of flow, using eg a temperature gradient of indicator dilution). When embedded in blood vessels, the optical fibers can provide the 3D shape and dynamics of the vasculature as well as flow information to help detect branches and bifurcations.

[0016] In one embodiment, this is performed using a shape-sensing fiber optic device inserted into the lumen of the vessel to be removed (eg, the left internal mammary artery (LIMA)). A three-dimensional (3D) reconstruction of the vessel's ...

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PUM

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Abstract

A method for visualizing branches of a lumen includes inserting (402) a fiber optic shape sensing device into a lumen and determining (404)changes in the lumen based upon strain induced in the fiber optic shape sensing device by flow in the lumen. Locations of branches are indicated (410) on a rendering of the lumen. An instrument is guided (414) to the locations of branches indicated on the rendering.

Description

technical field [0001] The present disclosure relates to medical instrumentation, and more particularly to shape sensing optical fibers in medical applications for identifying and accessing branches of lumens. Background technique [0002] Coronary artery bypass grafting (CABG) is a surgical procedure used to revascularize blocked coronary arteries. In conventional surgery, the patient's sternum is opened and the heart is fully exposed. An important part of the procedure is the removal of blood vessels from the patient's body, which are then used to bypass one or more atherosclerotic narrowings in the coronary arteries. The most commonly used vessel is the internal mammary artery (IMA) located in the chest. Other blood vessels used include the saphenous vein (leg) and radial artery (arm). [0003] Minimally invasive (MI) bypass surgery is performed through a small port (eg, with an opening size of about 5 mm for a fully endoscopic procedure and between about 50-60 mm for ...

Claims

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Application Information

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IPC IPC(8): A61B5/00A61B5/06A61B17/00
CPCA61B5/489A61B2019/5291A61B5/066A61B2019/5261A61B5/6847A61B5/065A61B2017/00778A61B5/0084A61B19/2203A61B5/6876A61B5/0036A61B34/20A61B34/30A61B2034/303A61B2034/2061A61B2090/365A61B1/00009A61B17/068A61B5/0026A61B1/000094A61B5/02007A61B5/0261A61B5/1076A61B5/1079A61B5/7264A61B17/00008A61B17/0057
Inventor H·埃尔哈瓦林A·波波维奇R·曼茨克R·陈
Owner KONINKLJIJKE PHILIPS NV
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