Biopsy needle assembly

• US 9,149,260 B2
• Filed: 02/27/2015
• Issued: 10/06/2015
• Est. Priority Date: 02/28/2014
• Status: Active Grant

• Current Assignee: Triopsy Medial Incorporated
• Original Assignee: 3Dbiopsy, Inc.
• Inventors: Stone, Nelson N., Schechter, Dave A.
• Primary Examiner(s): SZMAL, BRIAN SCOTT
• Application Number:
  US14/634,345
• Publication Number:
  US 20150245824A1
• Time in Patent Office: 221 Days
• Field of Search: 600562-567
• US Class Current: 1/1
• CPC Class Codes: A61B 10/02 Instruments for taking cell samples or for biopsy A61B10/0038 and A61B10/0045 take precedence; needle locating or guiding means A61B17/3403; samplers for enzymology or microbiology C12M1/26; sampling or preparing biological specimens G01N33/48
• CPC Class Codes: A61B 10/0241 for prostate
• CPC Class Codes: A61B 10/0275 with sample notch, e.g. on the side of inner stylet
• CPC Class Codes: A61B 2010/0208 Biopsy devices with actuators, e.g. with triggered spring mechanisms
• CPC Class Codes: A61B 2090/395 with marking agent for marking skin or other tissue
• CPC Class Codes: A61B 34/25 User interfaces for surgical systems
• CPC Class Codes: A61B 8/12 in body cavities or body tracts, e.g. by using catheters catheters per se A61M25/00
• CPC Class Codes: A61B 8/463 characterised by displaying multiple images or images and diagnostic data on one display composite display in devices for short-range imaging with acoustic waves G01S7/52074
• CPC Class Codes: A61B 8/483 involving the acquisition of a 3D volume of data
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers

Abstract

A biopsy needle assembly for excising a tissue specimen from a target tissue in an animal includes a mandrel with a core bed having an inner surface forming a projection for marking the tissue specimen at excision. The projections can be longitudinal and transverse in the core bed, and can project from an end of the core bed into the core bed. The projections can include a marking agent for marking the tissue specimen.

Claims

1. A biopsy needle for excising a tissue specimen from a target tissue, comprising:

a body extending longitudinally between a proximal end and a distal end about a longitudinally-extending central axis, wherein the body forms a core bed adjacent the distal end;

wherein the core bed forms a cavity with an inner surface extending longitudinally from a first end and a second end, and laterally between a first longitudinal edge and an opposing second longitudinal edge;

wherein the inner surface forms a transverse ridge extending between the first longitudinal edge and second longitudinal edge marking the tissue specimen;

wherein the second end forms a projection extending into the cavity marking the tissue specimen.

2. The needle of claim 1, comprising a plurality of adjacent transverse ridges.

3. The needle of claim 2, wherein the plurality of transverse ridges are grouped adjacent the second end.

4. The needle of claim 1, wherein the second end projection a contact surface includes a marking agent for marking the distal end of the tissue specimen.

5. The needle of claim 1, wherein the transverse ridge presents a contact surface for marking the tissue specimen.

6. The needle of claim 5, wherein the contact surface includes a marking agent for marking the tissue specimen.

7. The needle of claim 1, wherein:

the inner surface defines an upwardly open lower cavity; and

the first longitudinal edge and second longitudinal edge form the upper edges of the lower cavity.

8. The needle of claim 7, wherein the upwardly open cavity has a C-shaped cross sectional configuration.

9. The needle of claim 7, wherein the upwardly open cavity has a box-shaped cross sectional configuration.

10. The needle of claim 7, wherein the first longitudinal edge and second longitudinal edge are disposed at a horizontal plane coincident with the central axis, and the bottom of the lower cavity is disposed below the central axis.

11. The needle of claim 7, wherein the first longitudinal edge and second longitudinal edge are disposed above a horizontal plane coincident with the central axis, and the bottom of the lower cavity is disposed below the central axis.

12. A biopsy needle for excising a tissue specimen from a target tissue, comprising:

a body extending longitudinally between a proximal end and a distal end about a longitudinally-extending central axis, wherein the body forms a core bed adjacent the distal end;

wherein the core bed forms a cavity with an inner surface extending longitudinally from a first end and a second end, and laterally between a first longitudinal edge and an opposing second longitudinal edge;

wherein the inner surface forms a transverse ridge extending between the first longitudinal edge and second longitudinal edge; and

wherein the ridge presents a contact surface for marking the tissue specimen.

13. The needle of claim 12, wherein the ridge comprises a plurality of adjacent ridges grouped adjacent the second end.

14. The needle of claim 12, wherein the contact surface includes a marking agent for marking the tissue specimen.

15. The needle of claim 12, wherein:

the second end forms a projection extending into the cavity; and

wherein the projection includes a contact surface with a marking agent for marking the distal end of the tissue specimen.

16. The needle of claim 12, wherein:

the inner surface defines an upwardly open lower cavity; and

the first longitudinal edge and second longitudinal edge form the upper edges of the lower cavity.

17. The needle of claim 16, wherein the upwardly open cavity has a C-shaped cross sectional configuration.

18. The needle of claim 16, wherein the upwardly open cavity has a box-shaped cross sectional configuration.

19. The needle of claim 16, wherein the first longitudinal edge and second longitudinal edge are disposed at a horizontal plane coincident with the central axis, and the bottom of the lower cavity is disposed below the central axis.

20. The needle of claim 16, wherein the first longitudinal edge and second longitudinal edge are disposed above a horizontal plane coincident with the central axis, and the bottom of the lower cavity is disposed below the central axis.

21. A biopsy needle for excising a tissue specimen from a target tissue, comprising:

a body extending longitudinally between a proximal end and a distal end about a longitudinally-extending central axis, wherein the body forms a core bed adjacent the distal end;

wherein the core bed forms a cavity with an inner surface extending longitudinally from a first end and a second end, and laterally between a first longitudinal edge and an opposing second longitudinal edge; and

wherein the second end forms a projection extending into the cavity presenting a contact surface for marking the distal end of the tissue specimen.

22. The needle of claim 21, wherein the second end projection contact surface includes a marking agent for marking the tissue specimen.

23. The needle of claim 21, wherein the inner surface forms a plurality of adjacent transverse ridges adjacent the second end extending between the first longitudinal edge and the second longitudinal edge.

24. The needle of claim 23, wherein the transverse ridges present a contact surface with a marking agent for marking the tissue specimen.

25. The needle of claim 21, wherein:

the inner surface defines an upwardly open lower cavity; and

the first longitudinal edge and second longitudinal edge form the upper edges of the lower cavity.

26. The needle of claim 25, wherein the upwardly open cavity has a C-shaped cross sectional configuration.

27. The needle of claim 25, wherein the upwardly open cavity has a box-shaped cross sectional configuration.

28. The needle of claim 25, wherein the first longitudinal edge and second longitudinal edge are disposed at a horizontal plane coincident with the central axis, and the bottom of the lower cavity is disposed below the central axis.

29. The needle of claim 25, wherein the first longitudinal edge and second longitudinal edge are disposed above a horizontal plane coincident with the central axis, and the bottom of the lower cavity is disposed below the central axis.