Biopsy needle with large fiber distance at the tip
First Claim
Patent Images
1. A biopsy device comprising:
- a shaft; and
a tubular member, the shaft being movably accommodated within the tubular member, and the shaft having a centered longitudinal axis and a distal end,wherein a bevel is formed at the distal end of the shaft, the bevel facing upwardly,wherein at least two channels are formed within the shaft in a longitudinal direction of the shaft, each channel forming an opening in a surface of the bevel, wherein an optical fiber is accommodated within each of the channels,wherein a recess is formed in the shaft adjacent the distal end of the shaft, the recess facing sidewardly;
wherein upwardly and sidewardly are directions that are mutually offset in a circumferential direction about the longitudinal axis of the shaft, andwherein the at least two channels are included in a plane that is laterally offset from the centered longitudinal axis in a direction away from a side of the shaft in which the recess is formed.
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Abstract
A biopsy device is provided having a shaft and a tubular member. The shaft may be movably accommodated within the tubular member and may have a longitudinal axis and a distal end with a bevel. At least two channels are formed within the shaft in a longitudinal direction of the shaft, each channel forming an opening in the bevel surface, wherein an optical fiber is accommodated within each of the channels. Furthermore, a recess for accommodating tissue to be extracted may be formed in the shaft adjacent the distal end of the shaft. The bevel is facing upwardly whereas the recess is facing sidewardly.
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Citations
17 Claims
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1. A biopsy device comprising:
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a shaft; and a tubular member, the shaft being movably accommodated within the tubular member, and the shaft having a centered longitudinal axis and a distal end, wherein a bevel is formed at the distal end of the shaft, the bevel facing upwardly, wherein at least two channels are formed within the shaft in a longitudinal direction of the shaft, each channel forming an opening in a surface of the bevel, wherein an optical fiber is accommodated within each of the channels, wherein a recess is formed in the shaft adjacent the distal end of the shaft, the recess facing sidewardly; wherein upwardly and sidewardly are directions that are mutually offset in a circumferential direction about the longitudinal axis of the shaft, and wherein the at least two channels are included in a plane that is laterally offset from the centered longitudinal axis in a direction away from a side of the shaft in which the recess is formed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A biopsy device comprising:
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a tubular member; and a shaft movably accommodated within the tubular member, the shaft comprising; a centered longitudinal axis; a bevel at a distal end of the shaft, the a surface of the bevel facing upwardly; a recess in the shaft adjacent the distal end of the shaft, the recess having a bottom surface and facing sidewardly, wherein upwardly and sidewardly are directions that are mutually offset in a circumferential direction about the centered longitudinal axis of the shaft; and two channels formed in a longitudinal direction within the shaft, the two channels having corresponding openings in the bevel surface, and accommodating optical fibers, respectively, wherein the two channels are in a plane laterally offset from the centered longitudinal axis in a direction away from the bottom surface of the recess. - View Dependent Claims (15, 16)
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17. A shaft movably accommodated within a tubular member of a biopsy device, the shaft comprising:
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a bevel at a distal end of the shaft, a bevel surface of the bevel facing a first direction; a recess adjacent the distal end of the shaft, a recess surface of the recess facing a second direction that is circumferentially offset from the first direction about a longitudinal axis of the shaft; and a plurality of channels within the shaft formed in a longitudinal direction and containing optical fibers, respectively, the plurality of channels having a corresponding plurality of openings in the bevel surface, wherein the plurality of channels are included in a plane arranged in parallel and at a non-zero-distance from another plane including the longitudinal shaft axis of the shaft and a an intersecting normal vector of the bevel.
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Specification