Tissue removal apparatus

• US 20060206130A1
• Filed: 03/07/2006
• Published: 09/14/2006
• Est. Priority Date: 03/11/2005
• Status: Abandoned Application

• Current Assignee: Avent Incorporated (Avanos Medical, Inc.)
• Original Assignee: Baylis Medical Company Inc. (Boston Scientific Corporation)
• Inventors: Leung, Mark, Paget, Caitlyn, Conquergood, Laura
• Application Number:
  US11/368,506
• Publication Number:
  US 20060206130A1
• Time in Patent Office: Days
• US Class Current: 606/180
• CPC Class Codes: A61B 17/320016 Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes A61B10/0233, A61B17/29, A61B17/3207 take precedence
• CPC Class Codes: A61B 17/32002 with continuously rotating, oscillating or reciprocating cutting instruments
• CPC Class Codes: A61B 17/320758 with a rotating cutting instrument, e.g. motor driven A61B17/320725, A61B17/32075 and A61B17/320783 take precedence; for removing intra-ocular material A61F9/00763; endoscopic rotatable cutting instruments A61B17/32002
• CPC Class Codes: A61B 18/148 having a short, rigid shaft for accessing the inner body transcutaneously, e.g. for neurosurgery or arthroscopy
• CPC Class Codes: A61B 2017/00261 Discectomy
• CPC Class Codes: A61B 2017/00685 Archimedes screw
• CPC Class Codes: A61B 2017/320775 Morcellators, impeller or propeller like means
• CPC Class Codes: A61B 2018/0044 Spinal cord
• CPC Class Codes: A61B 2090/032 pressure limiting, e.g. hydrostatic
• CPC Class Codes: A61B 2090/065 for measuring contact or contact pressure
• CPC Class Codes: A61B 90/06 Measuring instruments not otherwise provided for

Abstract

A method and apparatus are disclosed for removal of material from a body. The apparatus comprises an elongate member defining a lumen and comprising a proximal end and a distal end. The distal end of the elongate member defines an aperture. The apparatus further comprises a tissue removal member. The tissue removal member comprises a shaft rotatably disposed within the lumen of the elongate member. The apparatus further comprises a rigid cannula for inserting the elongate member into a patient'"'"'s body. The cannula defines a lumen for receiving the elongate member, and has a proximal open end and a distal open end communicating with the lumen of the cannula.

Claims

1. An apparatus for removal of material from a body, the apparatus comprising:

an elongate member defining a lumen and comprising a proximal end and a distal end, said distal end defining an aperture;

a tissue removal member comprising a shaft rotatably disposed within said lumen; and

a rigid cannula for inserting said elongate member into said body, the cannula defining a lumen for receiving the elongate member, the cannula having a proximal open end and a distal open end communicating with said lumen of said cannula.

2. The apparatus of claim 1, further comprising an obturator removably disposed within the lumen of the cannula for occluding the distal open end of the cannula.

3. The apparatus of claim 2, wherein said obturator has a distal end, said distal end being substantially sharp such that it may pierce skin.

4. The apparatus of claim 1, further comprising a handpiece operatively connected to said tissue removal member.

5. The apparatus of claim 1, further comprising a motorized source of rotational energy operatively connected to said tissue removal member.

6. The apparatus of claim 4, further comprising a motorized source of rotational energy operatively connected to said tissue removal member wherein said handpiece comprises means for engaging and disengaging said motorized source of rotational energy.

7. The apparatus of claim 1, wherein said tissue removal member is a shaft having at least one outwardly extending projection.

8. The apparatus of claim 7, wherein said at least one outwardly extending projection forms at least one helix.

9. The apparatus of claim 1, wherein said tissue removal member is an auger.

10. The apparatus of claim 1, further comprising a receptacle operatively connected to the elongate member for receiving the material removed from the body, said elongate member defining at least one opening for transferring material from said elongate member to said receptacle.

11. The apparatus of claim 10, wherein said receptacle is structured to be detached from said elongate member.

12. The apparatus of claim 10, wherein said receptacle is at least partially pervious to light.

13. The apparatus of claim 10, wherein said receptacle comprises means for measuring the volume of tissue disposed within said receptacle.

14. The apparatus of claim 1, wherein said elongate member is at least partially pervious to light.

15. The apparatus of claim 1, wherein said cannula comprises at least one radiopaque marker.

16. The apparatus of claim 1, wherein said cannula comprises at least one injection port.

17. The apparatus of claim 1, wherein said cannula comprises at least one depth marker.

18. The apparatus of claim 1, wherein said cannula is between about 5.5 and about 7.5 inches in length.

19. The apparatus of claim 1, wherein said cannula is made from a material selected from the group consisting of stainless steels and nickel titanium alloys.

21. The kit according to 19, wherein the elongate member is bent.

20. A kit comprising:

a motor;

a handpiece structured to house said motor;

an elongate member defining a lumen and comprising a proximal end and an open distal end, said proximal end being operatively connected to said handpiece;

an auger sized to fit within said lumen, the auger comprising a proximal end and a distal end, the auger proximal end being operatively connected to said motor;

a receptacle;

a cannula; and

an obturator.