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Biopsy treatment tool

A technology for processing tools and biopsies, applied in foreign body detection, instruments for radiological diagnosis, catheters, etc.

Inactive Publication Date: 2013-07-31
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, when the specimen is not left in the recess, the tip of the biopsy treatment tool must be reinserted into the target site to extract the specimen.

Method used

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  • Biopsy treatment tool
  • Biopsy treatment tool
  • Biopsy treatment tool

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0035] Figure 1 to Figure 9 The first embodiment of the present invention is shown in . figure 1 Reference numeral 1 is a biopsy treatment tool, including a treatment tool main body 2 and a flexible sheath 3 as a tubular portion. Furthermore, the treatment tool main body 2 has an insertion portion 4 that is a rod-shaped portion that is long, thin, and flexible, and a connector portion 5 is provided at a base end portion of the insertion portion 4 . In addition, this connector unit 5 is connected to an ultrasonic observation device not shown.

[0036] The insertion part 4 penetrates through the flexible sheath 3 in a state capable of advancing and retreating relative to the flexible sheath 3, and is provided between the inner circumference of the flexible sheath 3 and the outer circumference of the insertion part 4 for reducing the distance between the two toward the axis. The frictional resistance of the sliding part 6 when the direction moves relative to each other. In ad...

no. 2 Embodiment approach

[0067] Figure 10 ~ Figure 13 The second embodiment of the present invention is shown in . In addition, the same code|symbol is attached|subjected to the same component as 1st Embodiment, and description is abbreviate|omitted. In this embodiment, the suction port of the suction line 15 is opened in the concave portion 7 for sample extraction, so that the part to be the sample 14a taken into the concave portion 7 for sample extraction is sucked into the suction line 15. By aspirating through the mouth, the site to be the sample 14a is reliably left in the sample extraction recess 7 .

[0068] That is, if Figure 10 , Figure 11 As shown, the suction pipeline 15 is formed along the axial direction in the insertion part 4, one end of which is opened on the rear wall surface 7b of the sample extraction concave part 7, and the other end is connected to the connector part 5 (refer to figure 1 ) of the rear opening. On the other hand, a suction pump or a suction syringe (not sho...

no. 3 Embodiment approach

[0074] Figure 14 The third embodiment of the present invention is shown in . In addition, the same code|symbol is attached|subjected to the same component as 1st Embodiment, and description is abbreviate|omitted. In this embodiment, both the front wall surface 7a and the rear wall surface 7b of the specimen extraction recess 7 are formed as inclined surfaces that expand toward the outer peripheral direction as they move away from the bottom surface side where the capacitive ultrasonic vibrator array 8 is fixed.

[0075] Ultrasonic waves emitted from the capacitive ultrasonic vibrator array 8 fixed at the bottom of the sample extraction recess 7 have side lobes with low sound pressure emitted in directions deviated from the central axis. If the wall surface 7b of the part is erected vertically, the sidelobe is likely to be reflected, and if the reflected wave interferes with the reflected wave of the original ultrasonic wave (main lobe), sidelobe artifacts will be generated. ...

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Abstract

A biopsy treatment instrument according to the present invention includes a flexible sheath, an insertion portion capable of advancing and retracting in the flexible sheath, a recessed portion for specimen sampling provided on a side surface of the insertion portion, a capacitive ultrasound transducer array provided on a bottom surface of the recessed portion for specimen sampling, and a slide portion that relatively slides the insertion portion and the flexible sheath so that the recessed portion for specimen sampling opens and closes. It is determined on the basis of a reflected wave received by the capacitive ultrasound transducer array whether or not a specimen is captured into the recessed portion for specimen sampling. Therefore, it is possible to surely sample the specimen.

Description

technical field [0001] The present invention relates to a biopsy treatment tool that is inserted into the body of a subject and extracts a specimen of a target site under ultrasonic observation. Background technique [0002] Conventionally, biopsy is known as a method for diagnosing a lesion or the like in the body. When performing a biopsy, first, after specifying a target site where a lesion or the like exists, a sample of the target site is extracted and biopsied. [0003] The identification of the target site is performed using, for example, an ultrasonic probe of the type disclosed in Japanese Patent Application Laid-Open No. 2004-216159 (hereinafter, referred to as “first document”). That is, an ultrasound probe is inserted into the body, and a target site is specified based on ultrasound signals received by an ultrasound vibrator provided at the distal end thereof. In this case, for example, an ultrasonic probe is attached to a tubular sheath, the ultrasonic probe i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/12A61B10/02
CPCA61B8/13A61B6/487A61B8/4488A61B10/0275A61B2019/528A61B2019/5278A61B1/005A61B1/00114A61B1/018A61B1/06A61B6/12A61B8/12A61B1/04A61B8/445A61B2090/3784
Inventor 仁科研一奥野喜之小室雅彦今桥拓也宫木浩仲
Owner OLYMPUS CORP