CA2656371A1 - Disc nucleus removal devices and methods - Google Patents

Disc nucleus removal devices and methods Download PDF

Info

Publication number
CA2656371A1
CA2656371A1 CA002656371A CA2656371A CA2656371A1 CA 2656371 A1 CA2656371 A1 CA 2656371A1 CA 002656371 A CA002656371 A CA 002656371A CA 2656371 A CA2656371 A CA 2656371A CA 2656371 A1 CA2656371 A1 CA 2656371A1
Authority
CA
Canada
Prior art keywords
tissue
elongate member
cutting element
lumen
cutting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002656371A
Other languages
French (fr)
Other versions
CA2656371C (en
Inventor
Shawn D. Stad
John Riley Hawkins
Michael J. O'neil
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DePuy Spine LLC
Original Assignee
Depuy Spine, Inc.
Shawn D. Stad
John Riley Hawkins
Michael J. O'neil
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Depuy Spine, Inc., Shawn D. Stad, John Riley Hawkins, Michael J. O'neil filed Critical Depuy Spine, Inc.
Publication of CA2656371A1 publication Critical patent/CA2656371A1/en
Application granted granted Critical
Publication of CA2656371C publication Critical patent/CA2656371C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3205—Excision instruments
    • A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
    • A61B17/320725—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with radially expandable cutting or abrading elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00238—Type of minimally invasive operation
    • A61B2017/00261—Discectomy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A61B2017/003—Steerable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A61B2017/003—Steerable
    • A61B2017/00318—Steering mechanisms
    • A61B2017/00323—Cables or rods

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Vascular Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

Disclosed herein are devices and methods for removing tissue. In one aspect, a device for removing tissue includes a hollow elongate member having an outer wall and a lumen, a selectively deployable tissue-cutting element extending from the hollow elongate member, and an actuation member extending through the lumen and coupled to the hollow elongate member at a location that is distal to the tissue-cutting element. Movement of the actuation member can cause the tissue-cutting element to move from the insertion configuration where the tissue-cutting element is not deployed to a tissue- cutting configuration where the tissue-cutting element is deployed such that it is radially extended relative to the insertion configuration.

Claims (29)

1. A tissue removal device, comprising:
a hollow elongate member having an outer wall and a lumen;
a selectively deployable tissue-cutting element extending from the hollow elongate member; and an actuation member extending through the lumen and communicating with the hollow elongate member at a location that is distal to the tissue-cutting element, wherein movement of the actuation member causes the tissue-cutting element to move from the insertion configuration where the tissue-cutting element is not deployed to a tissue-cutting configuration where the tissue-cutting element is deployed such that it is radially extended relative to the insertion configuration.
2. The device of claim 1, wherein at least two adjacent slits are formed in the outer wall of the elongate member.
3. The device of claim 2, wherein the slits are formed proximal to a distal end of the elongate member and extend proximally over a distance that is less than a length of the elongate member.
4. The device of claim 3, wherein the tissue-cutting elements are separated by a distance in the range of about 0.1 mm to 3 mm and extend a distance in the range of about 5 to 50 mm along the elongate member.
5. The device of claim 1, wherein the tissue-cutting element is formed on at least a portion of the hollow elongate member.
6. The device of claim 2, wherein the tissue-cutting element is formed by the portion of the elongate member between adjacent slits that is able to extend radially when subjected to a force.
7. The device of claim 1, wherein the actuation member effects deployment of the tissue-cutting element by compression of the elongate member.
8. The device of claim 7, wherein the compression is effected by rotation of a portion of the elongate member distal to the tissue-cutting element.
9. The device of claim 6, wherein an edge of the tissue-cutting element includes a sharpened edge.
10. The device of claim 6, wherein the tissue-cutting element is substantially helical.
11. The device of claim 6, wherein the tissue-cutting element comprises at least two radially-extendable arms that are formed between a plurality of slits.
12. The device of claim 1, wherein the lumen of the elongate member can accommodate an irrigation fluid and suction.
13. The device of claim 12, further comprising a fluid input conduit and a suction conduit that are disposed in the lumen.
14. The device of claim 1, wherein the outer wall of the elongate member is adapted to be positioned within a cannula.
15. The device of claim 14, wherein a distal end of the cannula includes a shoulder and a distal portion of the elongate member that includes the tissue-cutting element protrudes from the cannula such that a ledge formed on the elongate member abuts the shoulder of the cannula.
16. The device of claim 1, wherein the actuation member and the elongate member are adapted to move independently of one another.
17. The device of claim 1, wherein the tissue-cutting elements are adapted to move independently of the elongate member.
18. The device of claim 1, wherein the actuation member comprises at least one tether.
19. The device of claim 1, further comprising a locking mechanism that is adapted to hold the actuation member in the actuated position.
20. The device of claim 1, further comprising a steering element that is adapted to control directional movement of the elongate member.
21. The device of claim 20, wherein the steering element is ajoint formed between proximal and distal ends of the elongate member.
22. The device of claim 20, wherein the steering element is a tether that extends through the lumen of the elongate member and is coupled to the elongate member at a location that is distal to the tissue-cutting element.
23. The device of claim 1, wherein the,elongate member is formed from a material selected from the group consisting of stainless steel, titanium, titanium alloys, cobalt chromium alloys, nitinol, nylon, polyolefins, ABS, PEEK, polysulfones, polyacetal, and combinations thereof.
24. A method for removing tissue, comprising:
positioning a tissue removal device at a site within a disc space, the tissue removal device having an elongate member with at least one selectively deployable tissue-cutting element and an actuation member;
applying a force to the actuation member to cause tissue-cutting element to move from a non-deployed insertion configuration to a deployed, tissue-cutting configuration in which the tissue-cutting element is radially extended relative to the insertion configuration; and manipulating the tissue removal device within the disc space to cut and remove selected disc tissue.
25. The method of claim 24, wherein the hollow elongate member is adapted move independently from the actuation member.
26. The method of claim 24, wherein the tissue-cutting elements are adapted to move independently from the elongate member.
27. The method of claim 24, further comprising delivering fluid to the tissue site through the lumen.
28. The method of claim 27, further comprising applying suction to the tissue site through the lumen.
29. The method of claim 24, further comprising positioning at least a portion of the elongate member within a cannula for delivery to the disc space.
CA2656371A 2006-06-30 2007-05-23 Disc nucleus removal devices and methods Expired - Fee Related CA2656371C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/427,848 2006-06-30
US11/427,848 US8109957B2 (en) 2006-06-30 2006-06-30 Disc nucleus removal devices and methods
PCT/US2007/012267 WO2008005119A2 (en) 2006-06-30 2007-05-23 Disc nucleus removal devices and methods

Publications (2)

Publication Number Publication Date
CA2656371A1 true CA2656371A1 (en) 2008-01-10
CA2656371C CA2656371C (en) 2013-01-08

Family

ID=38895064

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2656371A Expired - Fee Related CA2656371C (en) 2006-06-30 2007-05-23 Disc nucleus removal devices and methods

Country Status (6)

Country Link
US (4) US8109957B2 (en)
EP (1) EP2037824B1 (en)
JP (1) JP5230618B2 (en)
AU (1) AU2007269956B2 (en)
CA (1) CA2656371C (en)
WO (1) WO2008005119A2 (en)

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Also Published As

Publication number Publication date
EP2037824B1 (en) 2017-03-01
US11638592B2 (en) 2023-05-02
EP2037824A2 (en) 2009-03-25
US20190008549A1 (en) 2019-01-10
EP2037824A4 (en) 2012-02-29
CA2656371C (en) 2013-01-08
AU2007269956B2 (en) 2011-08-18
US20160058466A1 (en) 2016-03-03
AU2007269956A1 (en) 2008-01-10
WO2008005119A3 (en) 2008-12-18
US9173673B2 (en) 2015-11-03
JP2009542320A (en) 2009-12-03
WO2008005119A2 (en) 2008-01-10
US20120179183A1 (en) 2012-07-12
US20080086157A1 (en) 2008-04-10
JP5230618B2 (en) 2013-07-10
US8109957B2 (en) 2012-02-07
US10052123B2 (en) 2018-08-21

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Effective date: 20170523