Vascular Position Locating and/or Mapping Apparatus and Methods
First Claim
1. A method of locating a branch vessel in a human patient comprising;
- tracking a sensor moving in a vessel along a first path;
detecting movement of the sensor away from the first path; and
determining if the detected movement is indicative of branch vessel entry.
2 Assignments
0 Petitions
Accused Products
Abstract
A branch vessel in a human patient is located or mapped using in vivo tracked field sensors where in one variation the sensor positions can be located by determining the positions of the sensors relative to a plurality of magnetic field sources of known location. This approach is used, for example, in locating the opening in a renal artery and positioning the proximal end of the AAA stent-graft adjacent to the opening. In another example, the sensors are tracked along the inner wall of an aneurysm and the acquired sensor location data processed to map the contour of the aneurysm to size a prostheses for spanning the aneurysm. The portions of the vessel adjacent the aneurysm also can be mapped. In a further embodiment, an in vivo sensor is positioned in a deployed prosthesis to create a reference for a prosthetic member having a sensor to track to during cannulation of the deployed prosthesis with the prosthetic member.
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Citations
47 Claims
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1. A method of locating a branch vessel in a human patient comprising;
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tracking a sensor moving in a vessel along a first path; detecting movement of the sensor away from the first path; and determining if the detected movement is indicative of branch vessel entry.
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2. A probe for locating or mapping structure in a patient comprising:
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an elongated member configured for endovascular delivery in a patient, said elongated member having a proximal end portion and a distal end portion; a first sensor coupled to said elongated member distal end portion; a flexible member having a first portion and a second portion, said flexible member first portion being coupled to said elongated member distal end portion; and a second sensor attached to said flexible member and suspended thereby. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method of mapping the contour of an inner surface of a vessel wall in a patient comprising:
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advancing a plurality of sensors along an inner surface of a vessel wall in a patient; acquiring data indicative of the position of the sensors in three-dimensional space as they are advanced along the surface; and processing the acquired data to generate a three-dimensional image corresponding to the contour of a portion of the inner vessel surface. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36)
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37. A method of mapping the contour of an inner surface of a vessel wall in a patient comprising:
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advancing a sensor along the inner surface of a vessel wall in a patient in both a circumferential and axial direction; acquiring data indicative of the position of the sensor in three-dimensional space as it is advanced along the surface; and processing the acquired data to generate a three-dimensional image corresponding to the contour of a portion of the inner vessel surface. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44)
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45. A method of selecting vascular prosthesis comprising:
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advancing a sensor along an inner surface of a vessel wall; acquiring data indicative of the position of the sensor in three-dimensional space as it is advanced along the inner surface; and selecting a prosthesis based on the acquired data. - View Dependent Claims (46, 47)
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Specification