Biopsy/access tool with integrated biopsy device and access cannula and use thereof

• US 20030083592A1
• Filed: 02/11/2002
• Published: 05/01/2003
• Est. Priority Date: 10/30/2001
• Status: Active Grant

• Current Assignee: Movdice Holding Inc.
• Original Assignee: Movdice Holding Inc.
• Inventors: Faciszewski, Tom
• Granted Patent: US 7,001,342 B2
• Time in Patent Office: Days
• US Class Current: 600/564
• CPC Class Codes: A61B 10/025 for taking bone, bone marrow or cartilage samples
• CPC Class Codes: A61B 10/0266 means for severing sample
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 2017/00261 Discectomy
• CPC Class Codes: A61B 2017/0046 with a releasable handle; with handle and operating part separable
• CPC Class Codes: A61B 2090/062 penetration depth

Abstract

A biopsy/access tool, comprising an integrated biopsy device and access cannula. The biopsy device is internally guided to a remote anatomical site, and the access cannula is adapted to be guided to the same remote anatomical body site by the biopsy device.

Claims

1. An integrated biopsy/access tool for harvesting a biopsy specimen and providing access to a remote anatomical site, comprising:

a. a biopsy device having distal and proximal ends;

b. a cannula having distal and proximal ends, and a first functional channel extending therebetween; and

c. a handle means, removably coupled to at least one of the biopsy device and cannula, wherein if the handle means is separated from said biopsy device, at least a portion of the first functional channel is capable of telescoping over the biopsy device.

2. A tool according to claim 1 wherein, when:

a. the cannula distal end is disposed relative to the biopsy specimen or anatomical site; and

,

b. the biopsy device is advanced within said first functional channel such that a handle distal end engages the cannula proximal end, the biopsy device distal end extends a distance beyond said cannula distal end, thereby securing a biopsy specimen.

3. The tool according to claim 1, wherein the biopsy device has an outer dimension ranging from 2 to 3 millimeters, and the cannula has an outer dimension between 3 and 4 millimeters.

4. The tool according to claim 1, further comprising a placement means for determining proper placement of at least one of the biopsy device and cannula.

5. The tool according to claim 4, wherein the handle means is further removably coupled to the placement means.

6. The tool device according to claim 4, wherein the placement device is telescopically received within a second functional channel extending through the biopsy device.

7. The tool according to claim 4, wherein the placement means comprises a trocar.

8. The tool according to claim 7, wherein the trocar has a tapered distal end.

9. The tool according to claim 8, wherein the trocar has an outer diameter between about 2 and 3 millimeters.

10. The tool according to claim 8, wherein the trocar has a channel extending therethrough.

11. The tool according to claim 4, wherein the placement means comprises a guide wire.

12. The tool according to claim 4, wherein the placement means comprises a linear scale on at least one of the biopsy device and cannula for measuring a penetration depth that the biopsy/access tool is positioned at the remote anatomical site.

13. The tool according to claim 1, wherein:

a. the biopsy device has at least one demarcation axially spaced thereon;

b. when the cannula distal end is disposed relative to the biopsy specimen or anatomical site; and

c. when the biopsy device is advanced through the first functional channel so as to align a demarcation with the cannula proximal end;

i) then, the biopsy device distal end extends a predetermined distance beyond said cannula distal end, thereby securing the biopsy specimen.

14. The tool according to claim 1, wherein the handle means simultaneously couples with the distal ends of the biopsy device and cannula.

15. A method for obtaining a biopsy specimen and accessing a remote anatomical site, comprising the steps of:

a. placing a biopsy device at an anatomical site;

b. advancing a cannula over the biopsy device;

c. securing the biopsy specimen; and

d. withdrawing the biopsy device containing the biopsy specimen from the remote anatomical site, thereby providing access through the cannula to the remote anatomical site.

16. The method according to claim 15, further comprising the step of positioning a placement means at the remote anatomical site prior to placing the biopsy device.

17. The method according to claim 15, wherein advancing the cannula comprises the steps of:

a. coupling a handle means to a cannula; and

b. sliding the cannula coupled to the handle telescopically over the biopsy device.

18. The method according to claim 15, wherein securing the biopsy specimen comprises the steps of:

a. coupling a handle means to the biopsy device;

b. advancing the biopsy device; and

c. fixing a biopsy specimen in the biopsy device with a securing means.

19. The method according to claim 18, wherein the securing means severs and retains the biopsy specimen.

20. The method according to claim 15, further comprising introducing at least one of medicaments, delivery cannula, tissue modification devices, catheters, tubes, diagnostic instruments, and pharmaceuticals and therapeutic agents.