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Puncture needle for ultrasound

An ultrasonic and puncture needle technology, applied in the field of ultrasonic puncture needles, can solve the problems of accurately sending substances to the concerned parts and difficult to use and adjust

Active Publication Date: 2013-10-30
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to adjust the angular position around the axis of the needle tube passing through the insertion part by the operation from the front operation part.
Moreover, it is difficult to always make the opening provided on the needle tube and used to discharge the substance be located on the ultrasonic observation surface.
Therefore, it may be difficult to accurately deliver the substance to the site of interest because it is not possible to observe the state in which the substance is delivered by the ultrasonic endoscope.

Method used

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  • Puncture needle for ultrasound
  • Puncture needle for ultrasound
  • Puncture needle for ultrasound

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach ）

[0066] The ultrasonic puncture needle of this embodiment is used in combination with an ultrasonic endoscope.

[0067] use Figure 1 ~ Figure 4 The ultrasound endoscope of this embodiment will be described. figure 1 It is a figure which shows the structure of an ultrasonic endoscope. figure 2 It is a perspective view showing the distal end of the ultrasonic endoscope. image 3 is viewed from the front figure 2 The front view when the top part is shown. Figure 4 It is a perspective cross-sectional view of a distal end portion of an ultrasound endoscope.

[0068] An ultrasonic endoscope 1 is configured to include an elongated insertion portion 2 inserted into a body cavity, an operation portion 3 provided at a proximal end of the insertion portion 2 , and a universal cable 4 extending from the side of the operation portion 3 .

[0069] An endoscope connector 5 is provided at the proximal end of the universal cord 4 . An ultrasonic cable 6 extends from the side of the en...

no. 2 approach ）

[0122] In the first embodiment, a case where a solid insert is left in the body is described, but instead, a case where a gaseous or liquid drug is injected into the body will be described as a second embodiment. Hereinafter, the parts having the same configuration as those of the first embodiment will be omitted, and only the differences will be described.

[0123] use Figure 19 ~ Figure 20 The ultrasonic puncture needle used in this embodiment will be described. Figure 19 It is the overall appearance diagram of the ultrasonic puncture needle. Figure 20 is an overall sectional view of the ultrasonic puncture needle.

[0124] A syringe 52 is attached to the resin head member 43 . The injection cylinder 52 is composed of a cylinder head 52a, a cylinder body 52b, and a piston 52c, and a gaseous or liquid medicine 53 is contained in the cylinder body 52b.

[0125] The mechanism for controlling the angular position of the needle tube 34 around the axis is the same as that of ...

no. 3 approach ）

[0128] A configuration in which the tip shape of the needle tube is different from that of the first and second embodiments will be described as a third embodiment. In addition, in the present embodiment, the substance delivered into the body may be a solid substance such as the insert 35 or a gaseous or liquid medicine 53 or the like. In the ultrasonic puncture needle of the present embodiment, when feeding out solid matter, the structure other than the tip of the needle tube is the same as that of the first embodiment. In addition, in the ultrasonic puncture needle of the present embodiment, when delivering gas or liquid such as the medicine 53 , the structure other than the tip of the needle tube is the same as that of the second embodiment. Here, only the structural differences from the first and second embodiments will be described.

[0129] like Figure 21A ~ Figure 21C As shown, the tip of the needle tube 54 is sharp, and an opening 54a is provided on the side. The d...

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Abstract

A puncture needle for ultrasound biopsy used in combination with an ultrasonic endoscope includes: a sheath inserted into an insertion channel of the ultrasonic endoscope so as to be capable of advancing and retracting; an operation part that is provided at a proximal-end part of the sheath, and doubles as a gripping part which a user grips; a needle tube that is inserted into the sheath, includes an opening formed in a distal-end region thereof, and configured to puncture a tissue in a body cavity; and a releasing mechanism that is fitted to a proximal-end side of the needle tube, and releases a substance filled therein from the opening of the needle tube to an outside. The needle tube is rotated around a longitudinal axis of the insertion channel by receiving a force from an inner wall of the insertion channel such that an axis line matching a direction of the opening in the needle tube protruding from the insertion channel becomes substantially parallel with an ultrasonic scanning face of the ultrasonic endoscope.

Description

technical field [0001] The present invention relates to a puncture needle for ultrasound which is introduced into a body cavity and used for delivering medicine and treatment equipment into the body. [0002] This application claims priority based on US Patent Application No. 61 / 490676 filed in the US provisionally on May 27, 2011, and the content thereof is incorporated herein. Background technique [0003] Conventionally, in order to examine and diagnose an affected part in a body cavity, a method of suctioning and extracting tissues and body fluids in the body cavity has been performed. In this technique, the puncture needle is used to penetrate the stomach, the alimentary canal wall of the duodenum, etc., while observing the body cavity with an ultrasound endoscope, and the puncture needle is used to puncture the target site of deep organs such as the pancreas, liver, and kidneys. conduct. This technique is called Endoscopic Ultrasound-guided Fine Needle Aspiration (EU...

Claims

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Application Information

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IPC IPC(8): A61B17/34
CPCA61B2019/5487A61B2019/5425A61B2019/528A61B17/3468A61B8/12A61B17/3478A61B1/00A61B8/445A61B2090/3784A61B2090/3925A61B2090/3987
Inventor 佐藤雅俊
Owner OLYMPUS CORP
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