BIOPSY NEEDLE WITH FLEXIBLE LENGTH
First Claim
Patent Images
1. An endoscopic tissue-sampling needle, comprising:
- an elongate tubular needle shaft having a proximal shaft portion and a distal needle portion;
wherein the distal needle portion comprises a shorter length than the proximal shaft portion;
wherein a length of the proximal shaft portion comprises a length of cable tube disposed immediately proximally adjacent of and securely fixed to the distal needle portion, said cable tube length comprising a greater flexibility than the distal needle portion;
wherein the distal needle portioncomprises a metallic material;
is configured for collection of patient tissue; and
wherein the elongate tubular needle shaft is configured and dimensioned for passage through a working channel of an endoscope to a target site within a patient body, with the cable tube length configured to occupy a curvably actuatable portion of an endoscope.
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Abstract
An endoscopic tissue-sampling needle is provided including an elongate needle shaft having a proximal shaft portion and a distal shaft portion. The distal shaft portion extends into and is fixedly attached to an inner diameter of a proximal shaft portion lumen. The distal shaft portion lumen is configured for collection of patient tissue by including a distal penetrating tip and/or a side aperture with a cutting edge configured to excise tissue from a target site in a patient body. The proximal shaft portion includes a length of cable tube configured to provide enhanced flexibility in use via an endoscope.
64 Citations
20 Claims
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1. An endoscopic tissue-sampling needle, comprising:
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an elongate tubular needle shaft having a proximal shaft portion and a distal needle portion; wherein the distal needle portion comprises a shorter length than the proximal shaft portion; wherein a length of the proximal shaft portion comprises a length of cable tube disposed immediately proximally adjacent of and securely fixed to the distal needle portion, said cable tube length comprising a greater flexibility than the distal needle portion; wherein the distal needle portion comprises a metallic material; is configured for collection of patient tissue; and wherein the elongate tubular needle shaft is configured and dimensioned for passage through a working channel of an endoscope to a target site within a patient body, with the cable tube length configured to occupy a curvably actuatable portion of an endoscope. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An endoscopic tissue-sampling needle, comprising:
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an elongate tubular needle shaft having a proximal shaft portion comprising a first metal cannula and a distal needle portion comprising a second metal cannula; wherein the distal needle portion comprises a shorter length than the proximal shaft portion; a length of cable tube disposed intermediate the first and second metal cannulas, wherein a distal end of the cable tube is immediately proximally adjacent of and securely fixed to the distal needle portion, said cable tube length comprising a greater flexibility than the distal needle portion; wherein the distal needle portion is configured for collection of patient tissue; and wherein the elongate tubular needle shaft is configured and dimensioned for passage through a working channel of an endoscope to a target site within a patient body, with the cable tube length configured to occupy a curvably actuatable portion of an endoscope. - View Dependent Claims (18, 19, 20)
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Specification