BIOPSY NEEDLE

PROBLEM TO BE SOLVED: To provide a biopsy needle for suction in which the operability can be improved without complicating the configuration. SOLUTION: The biopsy needle 1 is provided with an insertion portion 2 which is inserted into a therapeutic instrument insertion channel of an ultrasonic endos...

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Bibliographic Details
Main Author SEI TOSHIHIRO
Format Patent
LanguageEnglish
Published 21.10.2004
Edition7
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Summary:PROBLEM TO BE SOLVED: To provide a biopsy needle for suction in which the operability can be improved without complicating the configuration. SOLUTION: The biopsy needle 1 is provided with an insertion portion 2 which is inserted into a therapeutic instrument insertion channel of an ultrasonic endoscope so as to be freely moved forward and backward, a handle portion 3 disposed at a distal end of the insertion portion, a hollow needle tube 5 which is inserted into the inside of the insertion portion to puncture an intra-celom tissue, and a stylet 6 which is inserted into the inside of the needle tube and has almost the same length as that of the needle tube. The needle tube is constituted so that a gap between the needle tube and the stylet is narrow near its distal end and the gap between the needle tube and the stylet is wide at a portion closer to the proximal end side than the distal end. COPYRIGHT: (C)2005,JPO&NCIPI
Bibliography:Application Number: JP20030088954