Biopsy needle

A biopsy needle, needle holder technology for use in trocars, medical science, inoculation ovulation diagnosis, etc., that can solve problems such as limiting effectiveness and/or simplicity

Active Publication Date: 2020-03-24
A 戈登堡
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The design of traditional biopsy devices and their use in clinical practice suffer from a number of disadvantages that limit their effectiveness and / or simplicity

Method used

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  • Biopsy needle
  • Biopsy needle
  • Biopsy needle

Examples

Experimental program
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Embodiment Construction

[0030] now refer to Figure 1 to Figure 3 , wherein a snare coil design biopsy device 100 (sample retrieval and capture device or biopsy needle) is shown configured to retrieve a target sample, which may be a tissue sample located in certain organs or anatomical structures or foreign body form. To facilitate access of biopsy / capture device 100 to an organ or anatomical structure or tract, device 100 includes a catheter system.

[0031] now refer to Figure 1 to Figure 3 , shows a retrieval device (biopsy needle) 100 according to an exemplary embodiment. Biopsy needle 100 includes inner tube 120 having (snare coil) wire 200 at its distal end, outer cannula 130 , stylet 101 and handle assembly 300 . In one aspect of the present invention, handle assembly 300 includes a biasing (spring-loaded) mechanism described in more detail below that allows the user to selectively actuate biopsy needle 100 so that outer cannula 130 and inner tube 120 are rapidly advanced beyond Stylet 10...

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Abstract

A biopsy needle for collecting a tissue specimen includes an outer cannula that is at least partially received within a handle housing and an inner tube received within the outer cannula and configured to receive a stylet. A snare coil is attached between the inner tube and the outer cannula and is configured to wind down when the inner tube rotates in a first direction relative to the outer cannula and uncoil when the inner tube rotates in a second direction relative to the outer cannula. The outer cannula is fixedly coupled to a needle holder that is coupled to and moves with a movable basethat is axially movable within the handle housing. An inner driven structure (curvilinear part) is configured to selectively engage the movable base and travel therewith in a first stage of operationand in a second stage of operation in which the inner driven structure is disengaged from the movable base, the inner driven structure is driven along the movable base which is held in a stationary position. The coupling between the inner driven structure and the inner tube is such that the axial driving of the inner driven structure imparts rotation to the inner tube relative to the outer cannula.

Description

[0001] Cross References to Related Applications [0002] This patent application is based on and claims priority to U.S. Provisional Patent Application 62 / 482,344, filed April 6, 2017, and is related to U.S. Patent Application No. 14 / 939,805, filed November 12, 2015, which claims the November 2014 Priority to U.S. Patent Application No. 62 / 081,257, filed June 18, and U.S. Patent Application No. 62 / 170,934, filed June 4, 2015, each of which is incorporated herein by reference as if fully set forth herein Explain the same. technical field [0003] The present invention relates to a surgical instrument, generally known as a biopsy device for obtaining a tissue sample of a target sample, and more particularly, to a minimally invasive biopsy device that allows the operator to manipulate the cutting mechanism of the device to more precisely obtain substantially larger tissue samples to efficiently engage lesions or masses for improved sampling of organs or other anatomical structur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B10/02
CPCA61B2017/320064A61B10/0275A61B2010/0208A61B10/04A61B10/0266A61B17/00234A61B17/3403
Inventor A·戈登堡M·珀斯利P·亨德里克斯松P·詹内斯基
Owner A 戈登堡
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