Surgical system with a blade

• US 20060206117A1
• Filed: 10/25/2005
• Published: 09/14/2006
• Est. Priority Date: 09/27/2002
• Status: Active Grant

• Current Assignee: Surgitech, LLC
• Original Assignee: Surgitech, LLC
• Inventors: Harp, Richard J.
• Granted Patent: US 7,666,186 B2
• Time in Patent Office: Days
• US Class Current: 606/85
• CPC Class Codes: A61B 17/1624 Drive mechanisms therefor
• CPC Class Codes: A61B 17/1644 using fluid other than turbine drive fluid
• CPC Class Codes: A61B 17/1659 Surgical rasps, files, planes, or scrapers
• CPC Class Codes: A61B 17/1671 for the spine
• 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 2017/0046 with a releasable handle; with handle and operating part separable
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/00544 pneumatically
• CPC Class Codes: A61B 2017/00553 using a turbine
• CPC Class Codes: A61B 2017/1651 for cooling
• CPC Class Codes: A61B 2017/1653 for lubrication
• CPC Class Codes: A61B 2017/320008 Scrapers
• CPC Class Codes: A61B 2017/320084 Irrigation sleeves
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61B 2217/007 with irrigation system

Abstract

A reciprocating surgical file system for precisely removing bone and/or other tissue is described. The system allows a user to maneuver the system and navigate into hard-to-access sites under a direct vision mechanism. A transmission mechanism converts rotary motion from a motor into reciprocating motion and provides it to the surgical file for precision removal of bone or other tissue. A pulsatile pump mechanism is operatively coupled with the transmission mechanism and provides irrigating fluid to the surgical site.

Claims

1. A blade for removing tissue, said blade comprises:

an elongated blade body having an upper surface and an opposing lower surface; and

a plurality of raised cutting elements extending from said upper surface, each of said cutting elements defining a cutting edge for removing tissue, said cutting edge being substantially parallel to at least one of said upper surface and lower surface.

2. The blade of claim 1, wherein said raised cutting elements are adapted to remove bone by at least one of grinding, cutting, and filing.

3. The blade of claim 1, wherein said raised cutting elements each have a throughhole extending through said elongated blade body.

4. The blade of claim 1, wherein said elongated blade body has an arcuate transverse axis.

5. The blade of claim 1, wherein said cutting edge is substantially flat.

6. The blade of claim 1, wherein said cutting edge is substantially parallel to said transverse axis.

7. The blade of claim 1, wherein said cutting edge is arcuate.

8. The blade of claim 1, wherein said raised cutting elements each have a substantially frusto-conical shape.

9. The blade of claim 1, wherein said raised cutting elements are substantially self-sharpening.

10. The blade of claim 1, wherein said blade is movably coupled to a lower blade structure of a surgical instrument.

11. The blade of claim 1, wherein said blade is dimensioned so as to fit at least partially within a neuroforamen.

12. A blade for removing tissue, said blade comprising:

a blade body having an upper face and a lower face, said upper face and said lower face extending between a first edge and a second edge; and

a plurality of raised elements for removing tissue, said raised elements extending from said upper face, each of said raised elements having a cutting edge that is substantially concentric to an arcuate transverse axis of said blade body.

13. The blade of claim 12, wherein said blade body is dimensioned so as to fit at least partially within a neuroforamen.

14. The blade of claim 12, wherein said raised elements form an array of cutting elements that effectively remove tissue when said blade is actuated.

15. The blade of claim 12, wherein said raised elements each have a throughhole extending through said blade body.

16. The blade of claim 12, wherein said cutting edge is substantially flat.

17. The blade of claim 12, wherein said raised elements are substantially frusto-conical in shape.

18. The blade of claim 17, wherein said cutting edge is defined at a junction of an outer surface and an inner surface of said raised element.

19. The blade of claim 12, wherein said raised elements are substantially self-sharpening.