Device for taking a tissue sample

• US 7,008,381 B2
• Filed: 02/13/2002
• Issued: 03/07/2006
• Est. Priority Date: 02/16/2001
• Status: Expired due to Term

• Current Assignee: Jacques Phillibert Janssens
• Original Assignee: Jacques Phillibert Janssens
• Inventors: Janssens, Jacques Phillibert
• Primary Examiner(s): Hindenburg, Max F.
• Assistant Examiner(s): SZMAL, BRIAN SCOTT
• Application Number:
  US10/258,531
• Publication Number:
  US 20030114773A1
• Time in Patent Office: 1,483 Days
• Field of Search: 600/562, 600/567, 600/435, 600/564, 600/568, 606/180, 605/116, 604/528, 604/170.03, 604/264
• US Class Current: 600/564
• CPC Class Codes: A61B 10/0233 Pointed or sharp biopsy instruments
• CPC Class Codes: A61B 10/0266 means for severing sample
• CPC Class Codes: A61B 10/04 Endoscopic instruments
• CPC Class Codes: A61B 2010/0208 Biopsy devices with actuators, e.g. with triggered spring mechanisms
• CPC Class Codes: A61B 2017/00685 Archimedes screw
• CPC Class Codes: A61B 2017/320064 with tissue or sample retaining means

Abstract

Device for taking a tissue sample (34), characterized in that it comprises a spirally shaped tissue-receiving element (2), the outer free extremity of which extents in a direction which is situated in the prolongation of the spiral course of the spirally shaped tissue-receiving element (2), on one hand, and a cutting element (4–38), on the other hand, which can cooperate with the circumference of the spirally shaped tissue-receiving element (2) in order to provide in a cutting function.

Claims

1. A device for taking a tissue sample comprising a spirally shaped tissue-receiving element having a non-round cross-section and having an outer free extremity extending in and pointing in a direction along a prolongation of a spiral course of the spirally shaped tissue-receiving element to form a penetrating instrument, and a cutting element cooperating with the spirally shaped tissue-receiving element, in conjunction with a circumference of the spirally shaped tissue-receiving element for providing a cutting function.

2. The device of claim 1, wherein the spirally shaped tissue-receiving element comprises one or a combination of two or more of following features:

the spirally shaped tissue-receiving element has a helical course;

the spirally shaped tissue-receiving element surrounds a free axial passage space;

a spiral of the spirally shaped tissue-receiving element, in a direction perpendicular to an axial direction, has a width smaller than one third of a global diameter taken by the spirally shaped tissue-receiving element;

the spirally shaped tissue-receiving element extends over several turns;

the spirally shaped tissue-receiving element has a sharp point at a free front extremity;

the sharp point at the free front extremity extends in the direction along the prolongation of the spiral course of the spirally shaped tissue-receiving element;

the spirally shaped tissue-receiving element has a body with a flat cross-section;

the spirally shaped tissue-receiving element has a body having a cross-section tapering towards an outside;

the spirally shaped tissue-receiving element has a body with lateral surfaces having an inclination of less than about 30 degrees with respect to a plane perpendicular to an axial direction of the device.

3. The device of claim 2, wherein the body having the tapering cross-section tapering towards the outside ends in a tip.

4. The device of claim 1, wherein the spirally shaped tissue-receiving element is located at an end of a shaped portion.

5. The device of claim 4, wherein the shaped portion has a shape selected from the group consisting of oblong shape, bar-shape, wire-shape, and combinations thereof.

6. The device of claim 1, further comprising at least one cylindrical element surrounding the spirally shaped tissue-receiving element.

7. The device of claim 6, wherein the cylindrical element forms the cutting element, and wherein the spirally shaped tissue-receiving element and an edge of the cylindrical element mutually cooperate for creating the cutting function.

8. The device of claim 7, wherein the cutting function is created by a mutual rotational and/or axial movement of the spirally shaped tissue-receiving element and the cylindrical element.

9. The device of claim 8, wherein the front edge of the cylindrical element forms a cutting edge.

10. The device of claim 9, wherein an inclination of the cutting edge is opposed to an inclination of the spirally shaped tissue-receiving element.

11. The device of claim 9, wherein an inclination of one or more portions of the cutting edge is opposed to an inclination of the spirally shaped tissue-receiving element.

12. The device of claim 7, wherein the spirally shaped tissue-receiving element is of a springy material deformable between at least two positions, a free position and a deformed position, wherein in the free position the spirally shaped tissue-receiving element takes shape of a spiral and in the deformed position the spirally shaped tissue-receiving element is flattened, elongated, respectively, to a minor or major extent.

13. The device of claim 12, wherein the cylindrical element is a holder for slidingly receiving one or more shaped tissue-receiving elements for moving the spirally shaped tissue-receiving element in and out of the cylindrical element, and wherein the spirally shaped tissue-receiving element is in the undeformed condition when situated in the cylindrical element.

14. The device of claim 1, further comprising at least one hollow or thread shaped spirally shaped element cooperating with the spirally shaped tissue-receiving element.

15. The device of claim 14, wherein the spirally shaped element is the cutting element extending around the spirally shaped tissue-receiving element, wherein a cutting effect is created during a mutual turning movement of the spirally shaped element and the spirally shaped tissue-receiving element.

16. The device of claim 15, further comprising a motorized driver for turning the spirally shaped element and the spirally shaped tissue-receiving element and for driving the cutting element in a rotating manner around the spirally shaped tissue-receiving element.

17. The device of claim 1, wherein the device is a biopsy needle or is adaptable for a biopsy needle.

18. The device of claim 1, wherein the device is a flexible catheter or is adaptable for a catheter.

19. The device of claim 1, further comprising a localization element axially movable in the spirally shaped tissue-receiving element.

20. The device of claim 19, wherein the localization element is a localization needle.

21. A device for taking a tissue sample comprising a flexible catheter and the spirally shaped tissue-receiving element of claim 18 cooperating with the flexible catheter.

22. The device of claim 21, wherein the spirally shaped tissue-receiving element is displaceable with respect to the catheter between at least two positions, wherein in one position the tissue-receiving element is situated at least partially outside a front end of the catheter and in another position the tissue-receiving element is situated in a drawn-in position in the catheter.