Saw blade

• US 8,734,450 B2
• Filed: 08/15/2011
• Issued: 05/27/2014
• Est. Priority Date: 08/13/2010
• Status: Active Grant

• Current Assignee: Smith & Nephew Incorporated (Smith & Nephew PLC)
• Original Assignee: Smith & Nephew Incorporated (Smith & Nephew PLC)
• Inventors: Landon, Ryan Lloyd
• Primary Examiner(s): Manahan, Todd
• Assistant Examiner(s): SHIRSAT, MARCELA
• Application Number:
  US13/210,017
• Publication Number:
  US 20120041443A1
• Time in Patent Office: 1,016 Days
• Field of Search: 606/79, 606/82, 606/167, 606169-171, 606176-179, 606/86.R, 837/69, 835/895.97, 835/99, 837/82, 838/35, 836/65, 836/981.1, 837/76, 838/47, 838/48, 833/41, 303/40, 30342-344, 30330-339, 30/437, 30/438, 30208-209, 301/663, 303/92, 303/55, 302/721, 302/724, 301/69, 303/48, 303/51, 301/66
• US Class Current: 606/82
• CPC Class Codes: A61B 17/142 with reciprocating saw blades, e.g. with cutting edges at the distal end of the saw blades
• CPC Class Codes: Y10T 83/9377 Mounting of tool about rod-type shaft
• CPC Class Codes: Y10T 83/9457 Joint or connection

Abstract

There is provided a surgical saw blade for use in orthopaedic surgery. The saw blade comprising: a mounting cavity having a first substantially triangular-shaped opening and a second substantially triangular-shaped opening in communication with, and inverted relative to, the first opening, the first and second opening collectively define two mounting slots that form an angle relative to one another. In some embodiments, the planar portion further comprises an offset planar shelf. The offset shelf may be oriented along the length of the planar portion to allow for longitudinal reciprocation or may be oriented across the width of the planar portion to allow for lateral reciprocation.

Claims

1. A surgical saw blade for use in orthopaedic surgery, the saw blade comprising:

a blade body having a proximal end and a distal end, the blade body having a mounting cavity extending distally from the proximal end, the blade body having teeth at the distal end for sawing,

wherein the blade body has opposing walls that define the mounting cavity, the mounting cavity having a first substantially triangular-shaped opening and a second substantially triangular-shaped opening in communication with, and inverted relative to, the first opening, the first and second openings collectively define two mounting slots that form an angle relative to one another, and

wherein the opposing walls have first edges extending along two sides of the first substantially triangular-shaped opening and second edges extending along two sides of the second substantially triangular-shaped opening, wherein each of the first edges meets one of the second edges at a corner to define an obtuse angle.

2. The surgical saw blade of claim 1, wherein the first opening and the second opening have rounded corners.

3. The surgical saw blade of claim 1, wherein the first opening includes side walls and a distally-located base wall having curved segments separated by a connecting wall.

4. The surgical saw blade of claim 3, wherein the connecting wall is straight, concave, or convex.

5. The surgical saw blade of claim 1, further comprising a mounting portion and a planar portion extending longitudinally from the mounting portion, and the mounting cavity is located on the mounting portion.

6. The surgical saw blade of claim 5, wherein the planar portion further comprises an offset planar shelf.

7. The surgical saw blade of claim 6, wherein the offset shelf is oriented along the length of the planar portion to allow for longitudinal reciprocation.

8. The surgical saw blade of claim 6, wherein the offset shelf is oriented across the width of the planar portion to allow for lateral reciprocation.

9. The surgical saw blade of claim 5, wherein the planar portion further comprises teeth.

10. The surgical saw blade of claim 9, wherein the teeth are arranged in a linear or arcuate fashion.

11. The surgical saw blade of claim 9, wherein the teeth are oriented along the length of the planar portion to allow for longitudinal reciprocation.

12. The surgical saw blade of claim 9, wherein teeth are oriented across the width of the planar portion to allow for lateral reciprocation.

13. A surgical saw blade for use in orthopaedic surgery, the saw blade comprising:

a blade body having a proximal end and a distal end, the blade body having a mounting cavity extending distally from the proximal end, the blade body having teeth at the distal end for sawing,

wherein the mounting cavity is defined between opposing walls of the blade body, the opposing walls having;

a pair of spaced leading edges that define a proximal entry to the mounting cavity;

a pair of first curved segments that each extend distally from a respective one of the leading edges, the first curved segments having a width therebetween that increases in a distal direction along portions of the curved segments;

a pair of first linear segments that each extend distally from a respective one of the curved segments to an apex, the first linear segments having a width therebetween that decreases in a distal direction along the first linear segments; and

a pair of second linear segments that each extend distally from a respective one of the apexes, the second linear segments having a width therebetween that increases in a distal direction along the second linear segments.

14. The surgical saw blade of claim 13, wherein the blade body has a base wall defining a distal boundary of the mounting cavity, the base wall comprising:

a pair of second curved segments that each extend from a respective one of the second linear segments; and

a connecting wall that joins the second curved segments.

15. The surgical saw blade of claim 13, wherein each of the first linear segments is parallel the second linear segment of the opposite wall.

16. The surgical saw blade of claim 13, wherein the curved segments are located distal to the leading edges.

17. A surgical saw blade for use in orthopaedic surgery, the saw blade comprising:

a blade body having a proximal end and a distal end, the blade body having a mounting cavity extending distally from the proximal end, the blade body having teeth for sawing located distal to the mounting cavity,

wherein the blade body has opposing walls that define the mounting cavity, each of the opposing walls having a proximal linear edge that meets a corresponding distal linear edge at a corner, and each of the proximal linear edges is oriented at an obtuse angle with respect to the corresponding distal linear edge.

18. The surgical saw blade of claim 17, wherein the proximal linear edges have a width therebetween that decreases in a distal direction along the first linear segments;

and

wherein the distal linear segments have a width therebetween that increases in a distal direction along the second linear segments.