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US 12,582,472 B2Granted
Systems for determining size of kidney stone
AssigneeBoston Scientific Scimed, Inc.
InventorsKian Lim, Longquan Chen
Life of this patent
Estimating the term…
Abstract
A system is disclosed that includes an optical fiber including a first optical module and a gate. The gate can be capable of moving between closed and opened states to form a slit. At least one storage medium can be included having encoded thereon executable instructions that, when executed by the at least one processor, cause the system to carry out a method including directing light from the first optical module through the slit onto the stone to form a pair of lines with a spacing between the pair of lines; and determining a size of the stone, based on a distance from a distal tip of the optical fiber and the spacing between the pair of lines.
Claims18
A system for analyzing in vivo a kidney stone, the system comprising:
- an optical fiber comprising a first optical module, a camera, and a slit gate, the slit gate having a first gate member and a second gate member capable of moving relative to one another to transition the slit gate between an open state and a closed state to form a slit in the closed state;
- at least one processor;
- and
- at least one storage medium having encoded thereon executable instructions that, when executed by the at least one processor, cause the at least one processor to carry out a method comprising:
- directing light from the first optical module through the slit onto the stone to form a pair of lines with a spacing formed between the pair of lines;
- receiving an image of the stone captured by the camera, the image including the pair of lines formed on the stone;
- extracting, from the image, a first center line from a first line of the pair of lines and a second center line from a second line of the pair of lines;
- extracting a first plurality of points with particular intervals from the first center line and a second plurality of points with the particular intervals from the second center line;
- determining a plurality of shortest distances, wherein the plurality of shortest distances include a shortest distance from each point of the first plurality of points to the second plurality of points;
- determining a distance of the spacing between the pair of lines based on an average of the plurality of shortest distances;
- and
- determining a size of the stone, based on a distance from a distal tip of the optical fiber to the stone and the distance of the spacing between the pair of lines.
9 more elements
A system for analyzing in vivo a kidney stone, the system comprising:
- an optical fiber comprising a first optical module, a camera, and a slit gate, the slit gate being capable of moving between an open state and a closed state to form a slit in the closed state;
- at least one processor;
- and
- at least one storage medium having encoded thereon executable instructions that, when executed by the at least one processor, cause the at least one processor to carry out a method comprising:
- causing the first optical module to direct light through the slit and onto the stone to form a pair of lines on the stone with a spacing formed between the pair of lines;
- receiving an image of the stone captured by the camera, the image including the pair of lines formed on the stone;
- processing the image to extract a first center line from a first line of the pair of lines and a second center line from a second line of the pair of lines;
- determining, as a distance of the spacing between the pair of lines, a distance from the first center line to the second center line by:
- extracting a first plurality of points with particular intervals from the first center line;
- extracting a second plurality of points with the particular intervals from the second center line;
- calculating a plurality of shortest distances, the plurality of shortest distances including a shortest distance from each point of the first plurality of points to the second plurality of points;
- and
- averaging the plurality of shortest distances;
- and
- determining a size of the stone, based on a distance from the stone to a distal tip of the optical fiber and the distance of the spacing between the pair of lines.
12 more elements
A system for analyzing in vivo a kidney stone, the system comprising:
- an optical fiber comprising a first optical module, a camera, and a slit gate, the slit gate capable of moving between closed and opened states to form a slit;
- at least one processor;
- and
- at least one storage medium having encoded thereon executable instructions that, when executed by the at least one processor, cause the at least one processor to carry out a method comprising:
- directing light from the first optical module through the slit onto the stone to form a pair of lines with a spacing formed between the pair of lines;
- receiving, from the camera, one or more images of the stone;
- calculating the spacing between the pair of lines by applying one or more image processing algorithms to extract information from one or more frames of the one or more images, wherein applying the one or more image processing algorithms includes:
- using a threshold algorithm to segment the pair of lines from the one or more frames;
- using connected component analysis to separate the segmented pair of lines;
- extracting a center line from each of the segmented pair of lines;
- extracting a plurality of points with certain intervals from each of the center lines;
- calculating a shortest distance from each point of one of the center lines to the plurality of points of the other center line;
- and
- averaging the shortest distances to calculate the spacing between the pair of lines;
- and
- determining a size of the stone, based on a distance from a distal tip of the optical fiber to the stone and the spacing between the pair of lines.
13 more elements
Dependencies are inferred from the claim text.