Catheter based probe and method of using same for detecting chemical analytes
First Claim
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1. A medical diagnostic apparatus comprising:
- a catheter having a first end and a second end and a lumen;
a detection probe insertable in the catheter near the first end and slidable through the lumen toward the second end, the detection probe capable of detecting a chemical analyte; and
a data processing system coupled to the detection probe, wherein the detection probe is slidable through the catheter and rotatable to orient an end of the detection probe near one or more optically clear portions positioned in the catheter to obtain different radial views.
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Abstract
A medical diagnostic apparatus including a catheter and a probe assembly coupled to the catheter and a method involving the use of a catheter and a probe assembly coupled to the catheter. The probe assembly is capable of detecting a chemical analyte. The probe assembly includes a detection probe located within the catheter. The detection probe can be fixedly attached to the catheter or slideable within the catheter.
314 Citations
4 Claims
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1. A medical diagnostic apparatus comprising:
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a catheter having a first end and a second end and a lumen;
a detection probe insertable in the catheter near the first end and slidable through the lumen toward the second end, the detection probe capable of detecting a chemical analyte; and
a data processing system coupled to the detection probe, wherein the detection probe is slidable through the catheter and rotatable to orient an end of the detection probe near one or more optically clear portions positioned in the catheter to obtain different radial views.
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2. A medical diagnostic apparatus comprising:
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a catheter having a first end and a second end and a lumen;
a detection probe insertable in the catheter near the first end and slidable through the lumen toward the second end, the detection probe capable of detecting a chemical analyte; and
a data processing system coupled to the detection probe, wherein the detection probe tracks blood flow at a site of a chronic occlusion, a site of a stent placed at a bifurcation, an esophagus, a stomach, a uterus, or a saphenous vein graft.
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3. A method for detecting a chemical analyte, the method comprising:
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inserting a catheter in a lumen formed by a body vessel of a patient;
advancing the catheter through the lumen to a first target area;
inserting a first detection probe within the catheter after the advancing;
advancing the first detection probe through the catheter to the first target area; and
measuring, with the first detection probe, a blood flow at a lesion in the body vessel of the patient, wherein the first detection probe is slideably advanced through the catheter.
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4. A method for detecting a chemical analyte, the method comprising:
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inserting a catheter in a lumen formed by a body vessel of a patient;
advancing the catheter through the lumen to a first target area;
inserting a first detection probe within the catheter after the advancing;
advancing the first detection probe through the catheter to the first target area; and
measuring, with the first detection probe, blood flow at a site of occlusion in the body vessel of the patient, wherein the first detection probe is slideably advanced through the catheter.
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Specification