Free-hand aiming of a needle guide
First Claim
1. A method for free-hand directing of a needle towards a target located in a body volume, the method comprising the steps of:
- producing an image of said target and said body volume from an imaging detector;
transmitting said image produced by said imaging detector to a display screen which communicates with a position sensing controller;
sensing spatial orientation data of said imaging detector with respect to a reference;
transmitting said spatial orientation data of said imaging detector to said position sensing controller;
determining the position of said image in accordance with said spatial orientation data of said imaging detector;
placing said needle with at least a portion thereof substantially pointing at said target;
sensing spatial orientation data of said needle with respect to said reference;
transmitting said spatial orientation data of said needle to said position sensing controller;
causing said position sensing controller, based on said spatial orientation data of said imaging detector and of said needle, to indicate on said display screen at least one of the trajectory or the position of at least a portion of said needle with respect to said displayed image of said body volume.
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Accused Products
Abstract
A method for free-hand directing of a needle towards a target located in a body volume. The method includes the steps of producing an image of the target and the body volume, transmitting the image by means of an imaging detector to a display screen which communicates with a position sensing controller, sensing spatial orientation data of the imaging detector with respect to a reference, transmitting the spatial orientation data onto the display screen, placing the needle with a point thereof substantially pointing at the target sensing spatial orientation data of the needle with respect to the reference, transmitting the spatial orientation data of the needle to the position sensing controller, causing the position sensing controller, based on the spatial orientation data of the imaging detector and of the needle, to indicate on the display screen a trajectory of the needle point, and inserting the needle into the body volume towards the target in accordance with the trajectory indicated on the display screen.
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Citations
37 Claims
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1. A method for free-hand directing of a needle towards a target located in a body volume, the method comprising the steps of:
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producing an image of said target and said body volume from an imaging detector;
transmitting said image produced by said imaging detector to a display screen which communicates with a position sensing controller;
sensing spatial orientation data of said imaging detector with respect to a reference;
transmitting said spatial orientation data of said imaging detector to said position sensing controller;
determining the position of said image in accordance with said spatial orientation data of said imaging detector;
placing said needle with at least a portion thereof substantially pointing at said target;
sensing spatial orientation data of said needle with respect to said reference;
transmitting said spatial orientation data of said needle to said position sensing controller;
causing said position sensing controller, based on said spatial orientation data of said imaging detector and of said needle, to indicate on said display screen at least one of the trajectory or the position of at least a portion of said needle with respect to said displayed image of said body volume. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. Apparatus for free-hand directing of a needle towards a target located in a body volume, said needle being manipulated only by a hand of a user, said apparatus comprising:
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a position sensing controller which communicates with a display screen;
an imaging apparatus for producing an image of said body volume and said target;
an imaging detector for transmitting said image onto said display screen;
a probe orientation sensor attached to said imaging detector for sensing spatial orientation data of said imaging detector with respect to a reference; and
a needle orientation sensor attached to said needle for sensing spatial orientation data of said needle with respect to said reference; and
said position sensing controller configured for determining the position of said displayed image from said spatial orientation data of said imaging detector and configured for indicating on said display screen at least one of the trajectory or the position of at least a portion of said needle with respect to said displayed image of said body volume, based on said spatial orientation data of said imaging detector and of said needle. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
a connector adapted for attachment to said needle, said connector for connection to a sampling device.
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33. An apparatus for directing of a needle with respect to a target located in a body volume, comprising:
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a needle;
a needle orientation sensor attached to said needle which senses orientation of said needle with respect to a reference;
an imaging detector for transmitting an image to a display device;
a probe orientation sensor attached to said imaging detector for sensing orientation of said imaging detector with respect to said reference; and
a position sensing controller in operative communication with said needle orientation sensor and said probe orientation sensor configured for determining the position of said displayed image from said spatial orientation data of said imaging detector and configured for placing a representation of at least one of the trajectory or the position of at least a portion of said needle on said image on said display device, based on said orientations of said imaging detector and said needle with respect to said reference. - View Dependent Claims (34, 35, 36, 37)
a connector adapted for attachment to said needle, said connector for connection to a sampling device.
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Specification