NEEDLE POSITIONING APPARATUS
First Claim
Patent Images
1. A positioning apparatus comprising:
- a needle holder having a through hole that is adapted to at least partially surround a needle to guide the needle in a longitudinal direction;
a needle positioning unit having a base part adapted for mounting on a patient and a moving part having at least two degrees of freedom, which holds the needle holder and moves together with the needle holder so as to position the needle holder, and an engagement member that fixes a position of the needle holder with respect to the needle positioning unit,wherein the needle holder at least partially detachably attaches to the moving part of the needle positioning unit.
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Abstract
A positioning apparatus including a needle holder having a through hole for regulating needle placement and movement, a needle positioning unit, and an engagement member that fixes a position of the needle holder with respect to the needle positioning unit. The needle holder is either least partially detachably attached to the needle positioning unit or deformable. The positioning apparatus may be designed to accommodate the placement of multiple needles.
17 Citations
22 Claims
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1. A positioning apparatus comprising:
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a needle holder having a through hole that is adapted to at least partially surround a needle to guide the needle in a longitudinal direction; a needle positioning unit having a base part adapted for mounting on a patient and a moving part having at least two degrees of freedom, which holds the needle holder and moves together with the needle holder so as to position the needle holder, and an engagement member that fixes a position of the needle holder with respect to the needle positioning unit, wherein the needle holder at least partially detachably attaches to the moving part of the needle positioning unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A multiple needle positioning apparatus comprising:
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at least two needle holders, each having a through hole, the through hole adapted to at least partially surround a needle to guide the needles in a longitudinal direction; and a needle positioning unit having at least two degrees of freedom that holds the at least two needle holders and moves together with the at least two needle holders so as to position the needle holders, at least two engagement members that fix position of the needle holders with respect to the needle positioning unit, the at least two needle holders being at least partially detachably attached to the moving part of the needle positioning unit, wherein the apparatus is adapted such that the at least two needle holders can, when sequentially attached to the needle positioning unit, position at least two needles without interfering with each other.
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22. A method of placing multiple needles into an insertion location comprising:
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securing at least part of a needle positioning apparatus over an insertion location; acquiring an MR image of the insertion location; specifying two or more needle target locations based on the acquired MR image; calculating insertion directions for two or more needles for insertion at the needle target locations; calculating the configurations of the needle positioning apparatus based on the insertion directions, such that the movement direction of the two or more needles held by the needle positioning apparatus would be regulated to the insertion direction; rotating a portion of the needle positioning apparatus based on the calculated configuration for a first needle; inserting a first needle; releasing or removing the first needle from the needle holder; rotating a portion of the needle positioning apparatus based on the calculations for a second needle; inserting a second needle; and releasing or removing the second needle from the needle holder.
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Specification