Saw, a saw blade, a connection mechanism and associated methods

Patent metadata

Field	Value
Publication number	US-11109871-B2
Application number	US-201816037294-A
Country	US
Kind code	B2
Filing date	Jul 17, 2018
Priority date	Jul 12, 2012
Publication date	Sep 7, 2021
Grant date	Sep 7, 2021

Abstract

The present disclosure relates to a saw, comprising a drive, a first blade configured to oscillate about an axis perpendicular to a plane defined by a surface of the first blade, a second blade configured to oscillate about an axis perpendicular to the plane in a direction opposite to that of the first blade, and wherein gearing is provided between the drive and the first and second blades to reduce the speed transmitted from the drive to the blades. A saw blade, a connection mechanism for connecting a blade to a saw and associated methods are also provided.

First claim

What is claimed:

1. A method of removing at least one saw blade from a saw, the method comprising, for each saw blade of the at least one saw blade, steps of:
moving a resiliently biased latch of the saw blade from a first position to a second position, wherein in the first position the resiliently biased latch engages a latching surface of a mounting member of the saw in a longitudinal direction that extends from a proximal end of the saw blade to a distal end of the saw blade so as to create an interference in the longitudinal direction that interferes with removal of the saw blade along the longitudinal direction, and in the second position the resiliently biased latch no longer engages the mounting member; and
removing the saw blade and the mounting member from one another along the longitudinal direction,
wherein the saw blade has a width along a lateral direction, perpendicular to the longitudinal direction, and a thickness along a transverse direction, perpendicular to the longitudinal direction and lateral direction, the thickness being less than the width, and the moving step comprises moving the resiliently biased latch along the transverse direction from the first position to the second position.

2. The method of claim 1 , wherein the moving step comprises releasing the resiliently biased latch from the first position, where the resiliently biased latch extends from a surface of the saw blade that faces a receiving surface of the mounting member and into an aperture that is defined by the mounting member and extends into the receiving surface, to the second position, where the resiliently biased latch is removed from the aperture.

3. The method of claim 2 , wherein the resiliently biased latch is resiliently biased in a direction that extends towards the receiving surface, and the moving step comprises moving the resiliently biased latch along a direction that extends away from the receiving surface.

4. The method of claim 2 , wherein the latching surface is defined by the aperture and the moving step comprises releasing the resiliently biased latch from the first position, where the latching surface interferes with the resiliently biased latch, to the second position, where the latching surface no longer interferes with the resiliently biased latch.

5. The method of claim 4 , wherein, in the first position, the latching surface interferes with movement of the resiliently biased latch along the longitudinal direction.

6. The method of claim 1 , wherein the resiliently biased latch is disposed at the proximal end of the saw blade, and the saw blade comprises a cutting portion at the distal end of the saw blade.

7. The method of claim 1 , wherein removing step comprises sliding the saw blade and the mounting member out of engagement with one another along the longitudinal direction.

8. The method of claim 7 , wherein the sliding step comprises removing a raised portion of the mounting member from an opening defined by the saw blade.

9. The method of claim 8 , wherein the opening is defined at the proximal end of the saw blade between a pair of arms of the saw blade.

10. The method of claim 9 , wherein the opening extends into the proximal end of the saw along the longitudinal direction so as to define the pair of arms and the arms are spaced from one another along the lateral direction, perpendicular to the longitudinal direction.

11. The method of claim 8 , wherein the sliding step comprises sliding an angled surface of the saw blade opening along a complementarily angled surface of the raised potion, the angled surface of the saw blade and raised portion being angled relative to a plane defined by a surface of the blade, and wherein the angled surface of the raised portion and the angled surface of the saw blade interlock when the raised portion is disposed in the opening so as to create an interference that interferes with removal of the saw blade along the transverse direction that is perpendicular to the longitudinal direction.

12. The method of claim 1 , wherein the at least one saw blade comprises first and second saw blades, and the removing step comprises removing the first and second saw blades from between respective first and second mounting members that face one another.

13. The method of claim 12 , wherein the resiliently biased latch of the first saw blade is resiliently biased in a direction that extends away from the second saw blade towards a receiving surface of the first mounting member, and the resiliently biased latch of the second saw blade is resiliently biased in a direction that extends away from the first saw blade towards a receiving surface of the second mounting member.

14. The method of claim 1 , wherein the resiliently biased latch is milled out from the saw blade and bent towards the first position.

15. The method of claim 1 , wherein the resiliently biased latch comprises a first end attached to a body of the saw blade so as to define a hinge, and a second end that is free from attachment to the body of the saw blade.

16. A method of removing at least one saw blade from a saw, the method comprising, for each saw blade of the at least one saw blade, steps of:
moving a resiliently biased latch of the saw blade from a first position to a second position, wherein in the first position the resiliently biased latch engages a mounting member of the saw so as to create an interference that interferes with removal of the saw blade along a longitudinal direction that extends from a proximal end of the saw blade to a distal end of the saw blade, and in the second position the resiliently biased latch no longer engages the mounting member; and
removing the saw blade and the mounting member from one another along the longitudinal direction, wherein:
the moving step comprises releasing the resiliently biased latch from the first position, where the resiliently biased latch extends from a surface of the saw blade that faces a receiving surface of the mounting member and into an aperture defined by the mounting member, to the second position, where the resiliently biased latch is removed from the aperture; and
the moving step comprises accessing the resiliently biased latch in the aperture through an opening in the mounting member that is opposite the receiving surface of the mounting member.

17. A method of removing at least one saw blade from a saw, the method comprising, for each saw blade of the at least one saw blade, steps of:
moving a resiliently biased latch of the saw blade from a first position to a second position, wherein in the first position, the resiliently biased latch (i) extends from a surface of the saw blade that faces a receiving surface of a mounting member, (ii) extends into an aperture defined by the mounting member, and (iii) engages a mounting member of the saw so as to create an interference that interferes with removal of the saw blade along a longitudinal direction that extends from a proximal end of the saw blade to a distal end of the saw blade, and in the second position, the resiliently biased latch no longer engages the mounting member; and
removing the saw blade and the mounting member from one another along the longitudinal direction after moving the resiliently biased latch from the aperture,
wherein the aperture extends into the receiving surface of the mounting member.

18. The method of claim 17 , wherein the saw blade has a width along a lateral direction, perpendicular to the longitudinal direction, and a thickness along a transverse direction, perpendicular to the longitudinal direction and later

Assignees

• Depuy Synthes Products Inc

Inventors

• Mootien Azagen
• Herzog Daniel

Classifications

• Y10T83/04

  Processes · CPC title

• Y10T29/49815

  Disassembling · CPC title

• B27B19/008

  having a plurality of saw blades or saw blades having plural cutting zones · CPC title

• B23D61/006

  Oscillating saw blades · CPC title

• A61B17/142 Primary

  with reciprocating saw blades, e.g. with cutting edges at the distal end of the saw blades · CPC title