Biopsy device tissue sample holder with bulk chamber and pathology chamber

Patent metadata

Field	Value
Publication number	US-9326755-B2
Application number	US-201113218656-A
Country	US
Kind code	B2
Filing date	Aug 26, 2011
Priority date	Aug 26, 2011
Publication date	May 3, 2016
Grant date	May 3, 2016

Abstract

A biopsy device includes a probe, a holster, and a tissue sample holder for collecting tissue samples. The probe includes a needle and a hollow cutter. The tissue sample holder includes a housing having one or more chambers that are configured to receive a removable tray including one or more prongs and a bulk chamber of a different volume than the one or more chambers. The housing is releasably engageable with the probe. Each tray prong is configured to receive a tissue sample communicated through the cutter lumen. The tray is removable from the housing, such as along an axial direction. The tissue sample holder is rotatable to successively index each chamber to the cutter lumen. The trays may be flexible, resilient, or rigid.

First claim

What is claimed is:

1. A biopsy device, the biopsy device comprising:
(a) a probe body;
(b) a needle portion extending distally from the probe body, wherein the needle portion comprises a transverse tissue receiving aperture;
(c) a hollow cutter positioned within the needle portion, wherein the cutter is translatable within the needle portion to sever a tissue sample from tissue protruding through the aperture, wherein the hollow cutter defines a cutter lumen; and
(d) a tissue sample holder having a distal end and a proximal end, wherein the tissue sample holder comprises:
(i) at least two tissue sample chambers, wherein each of the chambers extends in an axial direction, wherein the axial direction is parallel with the cutter lumen, and
(ii) at least one tray removably engaged with at least one of the tissue sample chambers, wherein the at least one tray is removable proximally from the tissue sample chamber in an axial direction,
wherein the at least two tissue sample chambers comprises a first chamber and a second chamber, wherein the first tissue sample chamber defines a first volume, wherein the second tissue sample chamber defines a second volume, wherein the first volume is greater than the second volume,
wherein the tissue sample holder is operable to selectively index a tissue sample chamber of the first and second tissue sample chambers with the cutter lumen to receive the tissue sample in the indexed tissue sample chamber,
wherein the tissue sample holder is operable to selectively rotate the at least two tissue sample chambers through at least two angular positions, wherein the first chamber extends along a first angular extent, wherein the second chamber extends along a second angular extent, and wherein the first angular extent is greater than the second angular extent.

2. The biopsy device of claim 1 , wherein the tissue sample holder further comprises an inner housing, wherein the inner housing defines the tissue sample chambers, wherein the at least one tray is removably engageable with at least one of the at least two tissue sample chambers of the inner housing.

3. The biopsy device of claim 1 , wherein the at least one tray comprises at least one prong, the prong comprising a pair of sidewalls, a base end wall extending between each pair of sidewalls, and a floor integral with each pair of sidewalls and corresponding base end wall.

4. The biopsy device of claim 3 , wherein one of the at least two tissue sample chambers is sized to receive the at least one prong of the tray.

5. The biopsy device of claim 3 , wherein the tray comprises at least a first prong and a second prong, wherein the first tissue sample chamber is sized to receive the first prong and the second tissue sample chamber is sized to receive the second prong.

6. The biopsy device of claim 1 , wherein at least part of the tissue sample holder is sized to fit into a formalin cup.

7. The biopsy device of claim 1 , wherein the at least one tray comprises at least one prong, and each prong defines a tissue sample receiving space, wherein each tissue sample receiving space of each prong is associated with a corresponding tissue sample chamber.

8. The biopsy device of claim 1 , wherein the tissue sample holder is configured to redirect fluid communicated to the cutter lumen from a first direction to a second direction.

9. The biopsy device of claim 1 , wherein the tissue sample holder is selectively engageable with the probe body, wherein the tissue sample holder comprises a release mechanism operable to selectively release the tissue sample holder relative to the probe body.

10. The biopsy device of claim 1 , wherein the first tissue sample chamber is a bulk chamber configured to receive multiple tissue samples.

11. The biopsy device of claim 10 , wherein the second tissue sample chamber is configured to receive only a single tissue sample.

12. The biopsy device of claim 10 , wherein the second tissue sample chamber is configured to receive at least one less tissue sample than the bulk chamber.

13. The biopsy device of claim 1 , wherein the tissue sample holder is configured to redirect fluid from the cutter lumen to a vacuum lumen.

14. A tissue sample holder configured to engage a biopsy probe and receive a tissue sample, the tissue sample holder comprising:
(a) a housing having a distal end and a proximal end, the housing including at least a first tissue sample chamber and a second tissue sample chamber that are circumferentially aligned, wherein the distal end is adjacent to the biopsy probe and the proximal end is proximally spaced from the biopsy probe, wherein the tissue sample chambers each extend along an axial direction, and wherein the first tissue sample chamber has a first volume, the second tissue sample chamber has a second volume, and the first volume is greater than the second volume; and
(b) at least one tray, wherein the tray is configured to be axially received within the proximal end of at least one of the tissue sample chambers, wherein the at least one tray is configured to receive a tissue sample,
wherein the first chamber is configured to receive a plurality of tissue samples, wherein the second chamber is configured to receive a single tissue sample, wherein the first chamber extends along a first angular extent, wherein the second chamber extends along a second angular extent, and wherein the first angular extent is greater than the second angular extent.

15. The tissue sample holder of claim 14 , wherein the housing further comprises:
(i) an outer member having a proximal edge and a distal edge, wherein the outer member defines a central bore,
(ii) a plurality of radially extending walls extending from the outer member, and
(iii) an inner member extending between inner ends of the plurality of radially extending walls, the inner ends spaced from the outer member, wherein the outer member, the inner member, and the walls define at least one of the at least two tissue sample chambers;
wherein a first portion of the outer member, the inner member, a first outer wall of the plurality of walls, and a second outer wall of the plurality of walls define the first chamber,
wherein a second portion of the outer member, the inner member, and at least two of the walls of the plurality of walls define the second chamber of the at least two chambers, and
wherein the first chamber is separate from the second chamber.

16. The tissue sample holder of claim 15 wherein the distal end is configured to be positioned proximate to the probe, wherein the plurality of radially extending walls in the housing extend between the proximal end and the distal end.

17. The tissue sample holder of claim 15 , wherein the at least one tray comprises:
(i) a pair of sidewalls, each sidewall having a proximal edge and a distal edge,
(ii) a base end wall engaged with the sidewalls, the base end wall having a proximal edge and a distal edge, the base end wall defining an aperture, and
(iii) a floor coupled to the proximal edges of the sidewalls and the proximal edge of the base end wall;
wherein the tray is configured to be received within a chamber of the at least two tissue sample chambers and the distal edges of the sidewalls of the tray are configured for receipt into the respective chamber.

18. A method of operating a biopsy device, the biopsy device comprising: (i) a needle having a tissue receiving aperture, the needle defining a needle axis, (ii) a cutter configured to sever tissue at the aperture, (iii) a lumen configured to communicate tissue severed by the cutt

Assignees

• Fiebig Kevin M
• Leimbach Jessica P
• Moore Kyle P
• Nock Andrew P
• Devicor Medical Products Inc

Inventors

• Fiebig Kevin M
• Leimbach Jessica P
• Moore Kyle P
• Nock Andrew P

Classifications

• A61B2010/0225

  for taking multiple samples · CPC title

• A61B10/0096

  Casings for storing test samples (A61B10/0038, A61B10/0045 take precedence; preservation of living parts of the human or animal body A01N1/10; containers for retaining a material to be analysed B01L3/50; containers for enzymology or microbiology C12M1/16; swab-sampler being part of enzymology or microbiology container C12M1/30) · CPC title

• A61B10/0283

  with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe (A61B10/025, A61B10/0266 take precedence) · CPC title

• A61B10/0275 Primary

  with sample notch, e.g. on the side of inner stylet · CPC title

• A61B10/0266 Primary

  means for severing sample · CPC title