US3852881A - Cutting blade for use with an oscillating cutting device - Google Patents

Cutting blade for use with an oscillating cutting device Download PDF

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Publication number
US3852881A
US3852881A US00368656A US36865673A US3852881A US 3852881 A US3852881 A US 3852881A US 00368656 A US00368656 A US 00368656A US 36865673 A US36865673 A US 36865673A US 3852881 A US3852881 A US 3852881A
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cutting
body portion
cutting blade
oscillating
fracture
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US00368656A
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J Treace
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Richards Manufacturing Co LP
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Richards Manufacturing Co LP
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/006—Oscillating saw blades
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/14—Surgical saws ; Accessories therefor
    • A61B17/142—Surgical saws ; Accessories therefor with reciprocating saw blades, e.g. with cutting edges at the distal end of the saw blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/02—Circular saw blades
    • B23D61/021—Types of set; Variable teeth, e.g. variable in height or gullet depth; Varying pitch; Details of gullet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/02—Circular saw blades
    • B23D61/025—Details of saw blade body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B19/00—Other reciprocating saws with power drive; Fret-saws
    • B27B19/006—Other reciprocating saws with power drive; Fret-saws with oscillating saw blades; Hand saws with oscillating saw blades
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/14—Surgical saws ; Accessories therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7793—Means to rotate or oscillate tool

Definitions

  • ABSTRACT A cutting blade for use in cutting off fracture-fixation pins with an oscillating cutting device. At least one elongated aperture with a plurality of hollow-ground sawteeth located on its periphery is provided on the blade to smoothly cut off the fracture-fixation pins. An attachment member is provided on the cutting blade to attach it to the oscillating cutting device.
  • This invention relates generally to oscillating cutting devices and more specifically to cutting blades for use in cutting off fracture-fixation pins with such oscillating cutting devices.
  • fracture-fixation pins have been cut off by devices based upon the principle of shearing. See, for example, the Richards Manufacturing Companys Orthopedic and Orthological Instrument Catalogue, 1967, pp. 97-99. These prior devices are disadvantageous in that they leave a rough edge on the'pin after it is cut off. It should be pointed out that such fracturefixation pins are for use in anchoring bone fractures so that the bone will grow back together properly. The part of the pin which protrudes through the patients skin must be cut or broken off.
  • the SUMMARY OF THE INVENTION gated aperture is provided on the body portion about a curved center line every point of which is equally distant from the center of the attachment member.
  • the cutting blade also includes a cutting portion located on the periphery of the elongated aperture for cutting off the fracture-fixation pins.
  • the cutting portion consists of a plurality of hollow-ground saw teeth.
  • FIG. I is a front elevational view of the cutting blade I of the present invention.
  • FIG. 2 is a side elevational view of the cutting blade of the present invention shown mounted on a portion of an oscillating cutting device.
  • FIG. 3 is a front elevational view of a second embodiment of the cutting blade of thepresent invention.
  • FIG. 4 is an enlarged sectional view of a portion of the cutting blade of the present invention as'taken on line IV--IV of FIG. 1.
  • FIG. 5 is a sectional view of the cutting blade of the present invention similar to FIG. 4 showing a fracturefixation pin after it has been cut off.
  • the cutting blade 11 of the present invention is for use with an oscillating cutting device 13.
  • the oscillating cutting device 13 is of any suitable type such as that disclosed in the heretofore mentioned Stryker patent.
  • the cutting blade '11 includes a body portion 15 and a cutting portion 17.
  • the body portion 15 includes an attachment member 19 for mounting the body portion 15 onto the oscillating cutting device 13.
  • the attachment member 19 preferably consists of a triangular stud 21 for mounting onto the oscillating cutting device 13 by means of a triangular chuck 23 of the oscillating cutting device 1-3 known to those skilled in the art.
  • At least one elongated aperture 25 is provided on the body portion 15 of the cutting blade 11 about a curved center line every point of which is equally distant from the center of the attachment member.
  • the cutting portion 17 preferably consists of a plural ity of hollow-ground saw teeth 27.
  • the cutting portion 17 differs from normal saw teeth 28 as shown in phantom lines in FIG. 4 by the hollowed portion 27' of the hollow-ground saw teeth 27.
  • the hollowed portion 27' allows a fracture-fixation pin P to be cut off with a smooth, rounded portion P on the ends thereof.
  • the cutting blade 11 preferably includes a trough-like member 29 located on the periphery of the body portion 15 beneath the elongated aperture 25 for catching any metal filings produced when the fracturefixation pin P is being cut off.
  • the troughlike member 29 acts as'a bumper means to protect the skin of the patient having the fracture-fixation pin P cut off.
  • the body portion 15 is circular and includes three elongated apertures 25.
  • the cuttingblade 11 is mounted to the oscillating cutting device 13 in one of three positions provided by the triangular stud 21 and the triangular chuck 23.
  • the three apertures 25 By use of the three apertures 25, the life of the cutting blade 11 is greatly extended. That is, when the cutting portion 17 of one aperture 25 is dulled by use, the cutting blade 11 may be rotated to provide a new cutting portion 17 of one of the other apertures 25.
  • each of the plurality of elongated apertures 25 may be of a different size as shown in FIG. 3 of the drawings. The cutting blade 11 can thereby efficiently accommodate a wide range of different sizes of fracture-fixation pins P.
  • the use of the cutting blade 11 of the present invention is quite simple. First, the cutting blade 11 is mounted onto the oscillating cutting device 13. The
  • the - head of the fracture-fixation pin P to be cut off is passed through an elongated aperture 25 in the body portion 15 of the cutting blade 11.
  • the cutting device 13 When the cutting device 13 is activated to oscillate the cutting blade 11, it is preferably manually maneuvered to allow the cutting portion 17 to Contact all portions of the circumference of the fracture-fixation pin P being cut off.
  • the plurality of hollow-ground saw teeth 27'of the cutting portion 17 provides a rounded portion P on the edge of the fracture-fixation pin P being cut off as shown in FIG. 5.
  • the fracture fixation pin P is cut off smoothly so that no rough edge is left on the pin P after it has been cut off.
  • a body portion having anattachment member for mounting said body portion onto the oscillating cutting device and having an elongated aperture spaced away from said attachment member;
  • a cutting portion located around the entire periphery of said elongated aperture for allowing said cutting portion to selectively contact all portions of the circumference of the fracture-fixation pin being cut off to smoothly cut off the fracturefixation pin.
  • a cutting blade for use with a oscillating cutting device in cutting off fracture-fixation pins said cutting blade comprising:
  • a body portion having an attachment member for mounting said body portion onto the oscillating cutting device and having an elongated aperture spaced away from said attachment member and located about a curved center. line every point of which is equally distant from the center of said attachment member;
  • a cutting portion located on the periphery of said elongated aperture for cutting off the fracturefixation pin, said cutting portion consisting of a plurality of hollowground saw teeth;
  • a trough-like member located on'the peripheryof said body portion beneath said elongated aperture for catching any filings produced when the pin is being cut off.
  • a bodyportion having an attachment member for mounting said body portion onto the oscillating cutting device and having an elongated aperture located about a curved center lineevery point of which is equally distant from the center of said attachment means;
  • a trough-like member located on the periphery of said body portion beneath said elongated aperture for catching any filings produced when the pin is being cut off.
  • a body portion having an attachment member mounting said body portion onto the oscillating cutting device and having an elongated aperture spaced away from said attachment member;
  • a cutting portion located around the entire periphery of said elongated aperture for allowing said cutting portion to selectively contact all portions of the circumference of the fracture-fixation pin being cut off to smoothly cut off the fracturefixation pin.
  • a body portion having an attachment member mounting said body portion onto the ocillating cutting device and having an elongated aperture lo cated about a curved center line every point of which is equally distant from the center of said attachment means;
  • a trough-like member located on the periphery of said body portion beneath said elongated aperture for catching any filings produced when the pin-'is being cut off.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Forests & Forestry (AREA)
  • Wood Science & Technology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Dentistry (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Shovels (AREA)

Abstract

A cutting blade for use in cutting off fracture-fixation pins with an oscillating cutting device. At least one elongated aperture with a plurality of hollow-ground saw teeth located on its periphery is provided on the blade to smoothly cut off the fracture-fixation pins. An attachment member is provided on the cutting blade to attach it to the oscillating cutting device.

Description

' llnite tates Patent 11 1' Treace Dec. 10,1974
1 41 CUTTING BLADE FOR USE WITH AN OSCILLATING CUTTING DEVICE [75] Inventor: James T. Treace, Santa Monica,
Calif. [73] Assignee: Richards Manufacturing Company,
- Memphis, Tenn.
22 Filed: June 11, 1973 '21 Appl. No.2 368,656
[52] U.S. Cl 30/92, 30/124, 30/347,
83/491, 128/317 [51] Int. Cl B2311 45/00, B26b 25/00 [58] Field of Search...., 30/92, 94, 124, 95, 96,
[56] References Cited UNITED STATES PATENTS 149,932 4/1874 Hogeland 83/846 X 1,195,591 Kammer 30/94 2,557,364 6/1951 Treace 128/317 3,086,567 4/1963 Jetten 83/491 X 3,740,847 6/1973 Kliever 30/347 X Primary ExaminerAl Lawrence Smith Assistant ExaminerJ.,C. Peters Attorney, Agent, or Firm-John R. Walker, Ill
[5 7 ABSTRACT A cutting blade for use in cutting off fracture-fixation pins with an oscillating cutting device. At least one elongated aperture with a plurality of hollow-ground sawteeth located on its periphery is provided on the blade to smoothly cut off the fracture-fixation pins. An attachment member is provided on the cutting blade to attach it to the oscillating cutting device.
12 Claims, 5 Drawing Figures PATENTED B 1 0 I974 3,852,881
1. CUTTING BLADE FOR USE WITH AN OSCILLATING CUTTING DEVICE BACKGROUND OF THE INVENTION l. Field of the Invention:
This invention relates generally to oscillating cutting devices and more specifically to cutting blades for use in cutting off fracture-fixation pins with such oscillating cutting devices.
2. Description of the Prior Art:
The following US. Pat. Nos. disclose oscillating cutting-devices: Stryker, 2,427,580; Cecere, 3,044,171; Cummins, 3,091,851; Gary, 3,103,069; and Shaheen, 3,199,194. None of the above references disclose or suggest the present invention.
Previously, fracture-fixation pins have been cut off by devices based upon the principle of shearing. See, for example, the Richards Manufacturing Companys Orthopedic and Orthological Instrument Catalogue, 1967, pp. 97-99. These prior devices are disadvantageous in that they leave a rough edge on the'pin after it is cut off. It should be pointed out that such fracturefixation pins are for use in anchoring bone fractures so that the bone will grow back together properly. The part of the pin which protrudes through the patients skin must be cut or broken off.
SUMMARY OF THE INVENTION gated aperture is provided on the body portion about a curved center line every point of which is equally distant from the center of the attachment member. The cutting blade also includes a cutting portion located on the periphery of the elongated aperture for cutting off the fracture-fixation pins. The cutting portion consists of a plurality of hollow-ground saw teeth.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. I is a front elevational view of the cutting blade I of the present invention.
FIG. 2 is a side elevational view of the cutting blade of the present invention shown mounted on a portion of an oscillating cutting device.
FIG. 3 is a front elevational view ofa second embodiment of the cutting blade of thepresent invention.
'FIG. 4 is an enlarged sectional view of a portion of the cutting blade of the present invention as'taken on line IV--IV of FIG. 1.
FIG. 5 is a sectional view of the cutting blade of the present invention similar to FIG. 4 showing a fracturefixation pin after it has been cut off.
DESCRIPTION OF THE PREFERRED EMBODIMENT The cutting blade 11 of the present invention is for use with an oscillating cutting device 13. The oscillating cutting device 13 is of any suitable type such as that disclosed in the heretofore mentioned Stryker patent.
The cutting blade '11 includes a body portion 15 and a cutting portion 17.
The body portion 15 includes an attachment member 19 for mounting the body portion 15 onto the oscillating cutting device 13. The attachment member 19 preferably consists of a triangular stud 21 for mounting onto the oscillating cutting device 13 by means of a triangular chuck 23 of the oscillating cutting device 1-3 known to those skilled in the art. At least one elongated aperture 25 is provided on the body portion 15 of the cutting blade 11 about a curved center line every point of which is equally distant from the center of the attachment member.
The cutting portion 17 preferably consists of a plural ity of hollow-ground saw teeth 27. In other words, the cutting portion 17 differs from normal saw teeth 28 as shown in phantom lines in FIG. 4 by the hollowed portion 27' of the hollow-ground saw teeth 27. The hollowed portion 27' allows a fracture-fixation pin P to be cut off with a smooth, rounded portion P on the ends thereof. The cutting blade 11 preferably includes a trough-like member 29 located on the periphery of the body portion 15 beneath the elongated aperture 25 for catching any metal filings produced when the fracturefixation pin P is being cut off. In addition, the troughlike member 29 acts as'a bumper means to protect the skin of the patient having the fracture-fixation pin P cut off.
In one embodiment of the cutting device blade 11 as shown in FIGS. 1 and 2, the body portion l5-includes one elongated aperture 25 and is in the shape of a segment ofa circle. In a second embodiment of the cutting blade 11 as shown in FIG. 3, the body portion 15 is circular and includes three elongated apertures 25. In this second embodiment, the cuttingblade 11 is mounted to the oscillating cutting device 13 in one of three positions provided by the triangular stud 21 and the triangular chuck 23. By use of the three apertures 25, the life of the cutting blade 11 is greatly extended. That is, when the cutting portion 17 of one aperture 25 is dulled by use, the cutting blade 11 may be rotated to provide a new cutting portion 17 of one of the other apertures 25. In addition, each of the plurality of elongated apertures 25 may be of a different size as shown in FIG. 3 of the drawings. The cutting blade 11 can thereby efficiently accommodate a wide range of different sizes of fracture-fixation pins P.
The use of the cutting blade 11 of the present invention is quite simple. First, the cutting blade 11 is mounted onto the oscillating cutting device 13. The
- head of the fracture-fixation pin P to be cut off is passed through an elongated aperture 25 in the body portion 15 of the cutting blade 11. When the cutting device 13 is activated to oscillate the cutting blade 11, it is preferably manually maneuvered to allow the cutting portion 17 to Contact all portions of the circumference of the fracture-fixation pin P being cut off. In this manner, the plurality of hollow-ground saw teeth 27'of the cutting portion 17 provides a rounded portion P on the edge of the fracture-fixation pin P being cut off as shown in FIG. 5. Thus, the fracture fixation pin P is cut off smoothly so that no rough edge is left on the pin P after it has been cut off.
Although the invention has been described and illustrated with respect to preferred embodiments thereof, it is not to be so limited since changes and modifications may be made therein which are within the full intended scope of the invention.
I claim:
1. A cutting blade for use with an oscillating cutting device in cutting off fracture-fixation pins, said cutting blade comprising: 4
a. a body portion having anattachment member for mounting said body portion onto the oscillating cutting device and having an elongated aperture spaced away from said attachment member; and
b. a cutting portion located around the entire periphery of said elongated aperture for allowing said cutting portion to selectively contact all portions of the circumference of the fracture-fixation pin being cut off to smoothly cut off the fracturefixation pin.
2. The cutting blade of claim 1 in which said cutting portion consists of a plurality of hollow-ground saw teeth. I
3. The cutting blade of claim 2 in which said aperture s located about a curved center line every point of which is equally distant from the center of said attachment member.
4. A cutting blade for use with a oscillating cutting device in cutting off fracture-fixation pins, said cutting blade comprising:
a. a body portion having an attachment member for mounting said body portion onto the oscillating cutting device and having an elongated aperture spaced away from said attachment member and located about a curved center. line every point of which is equally distant from the center of said attachment member;
b. a cutting portion located on the periphery of said elongated aperture for cutting off the fracturefixation pin, said cutting portion consisting ofa plurality of hollowground saw teeth; and
c. a trough-like member located on'the peripheryof said body portion beneath said elongated aperture for catching any filings produced when the pin is being cut off. v
5. The cutting blade of claim 4 in which said body portion is circular and includes a plurality of elongated apertures.
6. The cutting blade of claim 5 in which said body portion includes three elongated. apertures and in which said attachment member consists of a triangular stud for mounting onto the oscillating cutting devicein one of three positions by means of'a triangular'chuck of the oscillating cutting device.
7. A cutting blade for use with an oscillating cutting device incutting off fracture-fixation pins, said cutting 4 blade comprising:
a. a bodyportion having an attachment member for mounting said body portion onto the oscillating cutting device and having an elongated aperture located about a curved center lineevery point of which is equally distant from the center of said attachment means;
b. a plurality of hollow-ground saw teeth located on the periphery of said elongated aperture; and
c. a trough-like member located on the periphery of said body portion beneath said elongated aperture for catching any filings produced when the pin is being cut off.
8. The cutting blade of claim 7 in which said body portion is circular and includes a plurality of said elongated apertures.
9. The combination with an oscillating cutting device of a cutting blade for use in cutting off fracture-fixation pins, said cutting blade comprising:
a. a body portion having an attachment member mounting said body portion onto the oscillating cutting device and having an elongated aperture spaced away from said attachment member;
b. a cutting portion located around the entire periphery of said elongated aperture for allowing said cutting portion to selectively contact all portions of the circumference of the fracture-fixation pin being cut off to smoothly cut off the fracturefixation pin.
10. The combination of claim 9 in which said cutting portion consists of a plurality of hollow-ground saw teeth.
11. The combination with an oscillating cutting device of a cutting blade for use in cutting off fracturefixation pins, said cutting blade comprising:
a. a body portion having an attachment member mounting said body portion onto the ocillating cutting device and having an elongated aperture lo cated about a curved center line every point of which is equally distant from the center of said attachment means;
b. a plurality of hollow-ground saw teeth located on the periphery of said elongated aperture; and
c. a trough-like member located on the periphery of said body portion beneath said elongated aperture for catching any filings produced when the pin-'is being cut off.
12. The combination of claim 11 in which said body portion is circular and includes a plurality of elongated apertures.

Claims (12)

1. A cutting blade for use with an oscillating cutting device in cutting off fracture-fixation pins, said cutting blade comprising: a. a body portion having an attachment member for mounting said body portion onto the oscillating cutting device and having an elongated apeRture spaced away from said attachment member; and b. a cutting portion located around the entire periphery of said elongated aperture for allowing said cutting portion to selectively contact all portions of the circumference of the fracture-fixation pin being cut off to smoothly cut off the fracture-fixation pin.
2. The cutting blade of claim 1 in which said cutting portion consists of a plurality of hollow-ground saw teeth.
3. The cutting blade of claim 2 in which said aperture s located about a curved center line every point of which is equally distant from the center of said attachment member.
4. A cutting blade for use with a oscillating cutting device in cutting off fracture-fixation pins, said cutting blade comprising: a. a body portion having an attachment member for mounting said body portion onto the oscillating cutting device and having an elongated aperture spaced away from said attachment member and located about a curved center line every point of which is equally distant from the center of said attachment member; b. a cutting portion located on the periphery of said elongated aperture for cutting off the fracture-fixation pin, said cutting portion consisting of a plurality of hollowground saw teeth; and c. a trough-like member located on the periphery of said body portion beneath said elongated aperture for catching any filings produced when the pin is being cut off.
5. The cutting blade of claim 4 in which said body portion is circular and includes a plurality of elongated apertures.
6. The cutting blade of claim 5 in which said body portion includes three elongated apertures and in which said attachment member consists of a triangular stud for mounting onto the oscillating cutting device in one of three positions by means of a triangular chuck of the oscillating cutting device.
7. A cutting blade for use with an oscillating cutting device in cutting off fracture-fixation pins, said cutting blade comprising: a. a body portion having an attachment member for mounting said body portion onto the oscillating cutting device and having an elongated aperture located about a curved center line every point of which is equally distant from the center of said attachment means; b. a plurality of hollow-ground saw teeth located on the periphery of said elongated aperture; and c. a trough-like member located on the periphery of said body portion beneath said elongated aperture for catching any filings produced when the pin is being cut off.
8. The cutting blade of claim 7 in which said body portion is circular and includes a plurality of said elongated apertures.
9. The combination with an oscillating cutting device of a cutting blade for use in cutting off fracture-fixation pins, said cutting blade comprising: a. a body portion having an attachment member mounting said body portion onto the oscillating cutting device and having an elongated aperture spaced away from said attachment member; b. a cutting portion located around the entire periphery of said elongated aperture for allowing said cutting portion to selectively contact all portions of the circumference of the fracture-fixation pin being cut off to smoothly cut off the fracture-fixation pin.
10. The combination of claim 9 in which said cutting portion consists of a plurality of hollow-ground saw teeth.
11. The combination with an oscillating cutting device of a cutting blade for use in cutting off fracture-fixation pins, said cutting blade comprising: a. a body portion having an attachment member mounting said body portion onto the ocillating cutting device and having an elongated aperture located about a curved center line every point of which is equally distant from the center of said attachment means; b. a plurality of hollow-ground saw teeth located on the periphery of said elongated aperture; and c. a trough-like member located on the periphery of said body portion beneath saId elongated aperture for catching any filings produced when the pin is being cut off.
12. The combination of claim 11 in which said body portion is circular and includes a plurality of elongated apertures.
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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3952412A (en) * 1975-03-28 1976-04-27 Rhodes William A Oscillatory saw
US4513742A (en) * 1981-10-13 1985-04-30 Arnegger Richard E Saw blade with aperture
US5263972A (en) * 1991-01-11 1993-11-23 Stryker Corporation Surgical handpiece chuck and blade
US5468247A (en) * 1993-05-26 1995-11-21 Stryker Corporation Saw blade for powered medical handpiece
US5479971A (en) * 1994-08-01 1996-01-02 Marshall; Lorry L. Dual action tree cutting apparatus
US6540760B2 (en) * 2000-06-23 2003-04-01 Oasis Medical, Inc. Cutting blade and cutting blade assembly
US20030176225A1 (en) * 2001-12-19 2003-09-18 Hansjoerg Besch Balanced oscillating tool
US20040200334A1 (en) * 2003-01-27 2004-10-14 John Souza Saw blade with secondary teeth
US20060080844A1 (en) * 2004-10-18 2006-04-20 August Bauhuber Device and process for generating surface channels in plate-shaped workpieces
US20130104719A1 (en) * 2011-10-28 2013-05-02 Robert Bosch Gmbh Planer Accessory Tool for An Oscillating Power Tool
US20140223746A1 (en) * 2009-01-26 2014-08-14 K-Rain Manufacturing Corp. Portable battery operated pipe cutter
US9149923B2 (en) 2010-11-09 2015-10-06 Black & Decker Inc. Oscillating tools and accessories
US9168188B2 (en) 2007-11-13 2015-10-27 Orthopediatrics Corporation Cast removal system
CN105479405A (en) * 2015-12-18 2016-04-13 覃桂才 Tool accessory suitable for swing power tool
US9332995B2 (en) 2012-09-25 2016-05-10 Russo Inventions, Llc Bone-harvesting tool
US10342553B2 (en) 2015-01-21 2019-07-09 Stryker European Holdings I, Llc Surgical sagittal saw and complementary blade with features that fixedly hold the blade static to the saw
US20190321900A1 (en) * 2018-04-24 2019-10-24 Robert Bosch Tool Corporation Blade Accessory with Guide
USD962027S1 (en) 2020-04-23 2022-08-30 Milwaukee Electric Tool Corporation Blade
US20220297213A1 (en) * 2019-10-01 2022-09-22 Milwaukee Electric Tool Corporation Blade for a power tool
US11919099B2 (en) 2019-10-18 2024-03-05 Milwaukee Electric Tool Corporation Blade for a power tool

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US149932A (en) * 1874-04-21 Improvement in circular saws
US1195591A (en) * 1916-08-22 Mbtal-ttjbihg cutter
US2557364A (en) * 1948-06-15 1951-06-19 Orthopedic Frame Co Surgical saw blade
US3086567A (en) * 1960-06-30 1963-04-23 Willem Koelega Sawing machine comprising a circular saw provided with an internal toothing
US3740847A (en) * 1971-02-04 1973-06-26 W Kliever Power driven meat trimming and cutting knife

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US3086567A (en) * 1960-06-30 1963-04-23 Willem Koelega Sawing machine comprising a circular saw provided with an internal toothing
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US3952412A (en) * 1975-03-28 1976-04-27 Rhodes William A Oscillatory saw
US4513742A (en) * 1981-10-13 1985-04-30 Arnegger Richard E Saw blade with aperture
US5263972A (en) * 1991-01-11 1993-11-23 Stryker Corporation Surgical handpiece chuck and blade
US5439472A (en) * 1991-01-11 1995-08-08 Stryker Corporation Surgical handpiece chuck and blade
US5468247A (en) * 1993-05-26 1995-11-21 Stryker Corporation Saw blade for powered medical handpiece
US5702415A (en) * 1993-05-26 1997-12-30 Stryker Corporation Chuck and blade for powered medical handpiece
US5479971A (en) * 1994-08-01 1996-01-02 Marshall; Lorry L. Dual action tree cutting apparatus
US6540760B2 (en) * 2000-06-23 2003-04-01 Oasis Medical, Inc. Cutting blade and cutting blade assembly
US20030176225A1 (en) * 2001-12-19 2003-09-18 Hansjoerg Besch Balanced oscillating tool
US7640838B2 (en) 2003-01-27 2010-01-05 Eugene Carbide Saw Service, Inc. Saw blade with secondary teeth separated by deep gullets
US20070144325A1 (en) * 2003-01-27 2007-06-28 John Souza Saw blade with multiple interior secondary saw teeth
US7451677B2 (en) * 2003-01-27 2008-11-18 Eugene Carbide Saw & Machine, Inc. Saw blade with secondary teeth
US7487704B2 (en) 2003-01-27 2009-02-10 Eugene Carbide Saw Service, Inc. Saw blade with multiple interior secondary saw teeth
US20090044679A1 (en) * 2003-01-27 2009-02-19 John Souza Band saw blade with interior teeth
US20090114073A1 (en) * 2003-01-27 2009-05-07 Souza John A Saw blade with secondary teeth separated by deep gullets
US20040200334A1 (en) * 2003-01-27 2004-10-14 John Souza Saw blade with secondary teeth
US8677873B2 (en) 2003-01-27 2014-03-25 Eugene Carbide Saw Service, Inc. Band saw blade with interior teeth
US20060080844A1 (en) * 2004-10-18 2006-04-20 August Bauhuber Device and process for generating surface channels in plate-shaped workpieces
US9168188B2 (en) 2007-11-13 2015-10-27 Orthopediatrics Corporation Cast removal system
US20140223746A1 (en) * 2009-01-26 2014-08-14 K-Rain Manufacturing Corp. Portable battery operated pipe cutter
US9149923B2 (en) 2010-11-09 2015-10-06 Black & Decker Inc. Oscillating tools and accessories
US20130104719A1 (en) * 2011-10-28 2013-05-02 Robert Bosch Gmbh Planer Accessory Tool for An Oscillating Power Tool
US9302405B2 (en) * 2011-10-28 2016-04-05 Robert Bosch Gmbh Planer accessory tool for an oscillating power tool
US9332995B2 (en) 2012-09-25 2016-05-10 Russo Inventions, Llc Bone-harvesting tool
US10342553B2 (en) 2015-01-21 2019-07-09 Stryker European Holdings I, Llc Surgical sagittal saw and complementary blade with features that fixedly hold the blade static to the saw
CN105479405A (en) * 2015-12-18 2016-04-13 覃桂才 Tool accessory suitable for swing power tool
US20190321900A1 (en) * 2018-04-24 2019-10-24 Robert Bosch Tool Corporation Blade Accessory with Guide
US10906108B2 (en) * 2018-04-24 2021-02-02 Robert Bosch Tool Corporation Blade accessory with guide
US20220297213A1 (en) * 2019-10-01 2022-09-22 Milwaukee Electric Tool Corporation Blade for a power tool
US11919098B2 (en) * 2019-10-01 2024-03-05 Milwaukee Electric Tool Corporation Blade for a power tool
US11919099B2 (en) 2019-10-18 2024-03-05 Milwaukee Electric Tool Corporation Blade for a power tool
USD962027S1 (en) 2020-04-23 2022-08-30 Milwaukee Electric Tool Corporation Blade

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