CA2005084A1 - Bone rasp - Google Patents
Bone raspInfo
- Publication number
- CA2005084A1 CA2005084A1 CA002005084A CA2005084A CA2005084A1 CA 2005084 A1 CA2005084 A1 CA 2005084A1 CA 002005084 A CA002005084 A CA 002005084A CA 2005084 A CA2005084 A CA 2005084A CA 2005084 A1 CA2005084 A1 CA 2005084A1
- Authority
- CA
- Canada
- Prior art keywords
- rasp
- portions
- cutting
- center
- slots
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1659—Surgical rasps, files, planes, or scrapers
-
- 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
- Y10T407/00—Cutters, for shaping
- Y10T407/18—File or rasp
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
- Prostheses (AREA)
Abstract
BONE RASP
Abstract of the Disclosure A rasp adapted for rasping generally hard tissue, such as bone, cartilage and associated tissue, and a method of forming such a rasp are disclosed. The rasp comprises a plate-like body having opposite generally parallel major surface portions, and may be detachably attached to a powered device for driving the rasp. A plurality of rasp portions are arranged along the rasp for substantially evenly rasping hard tissue. Each rasp portion has a center, and a plurality of slots through the body extending generally radially outwardly from the center of the portion to define a plurality of cantilever cutting members extending generally radially inwardly of the rasp portion generally toward the center of the rasp portion and separated from one another by the slots. The cutting members are bent to project outwardly from the major surface portions of the body with alternating members of each rasp portion being bent to project outwardly from alternating major surface portions of the body.
Abstract of the Disclosure A rasp adapted for rasping generally hard tissue, such as bone, cartilage and associated tissue, and a method of forming such a rasp are disclosed. The rasp comprises a plate-like body having opposite generally parallel major surface portions, and may be detachably attached to a powered device for driving the rasp. A plurality of rasp portions are arranged along the rasp for substantially evenly rasping hard tissue. Each rasp portion has a center, and a plurality of slots through the body extending generally radially outwardly from the center of the portion to define a plurality of cantilever cutting members extending generally radially inwardly of the rasp portion generally toward the center of the rasp portion and separated from one another by the slots. The cutting members are bent to project outwardly from the major surface portions of the body with alternating members of each rasp portion being bent to project outwardly from alternating major surface portions of the body.
Description
432~5CAN2A
5(~
BONE RASP
The in~ention relates generally to rasps, and more particular]y to a rasp adapted for rasping generally hard tissue, such as bone, cartilage and associated tissue.
Background of the Invention Orthopedic surgeons frequently desire smoother cut surfaces than they have been able to consistently obtain by sawing a section of bone, e.g., for secure engagement with a suitable prosthesis. Sometimes surgeons attempt to smooth out a freshly cut surface by running the side of the saw blade along the surface, possibly leading to bone necrosis (i.e., bone cell death) due to overheating if the saw is run too long. However, if the surgeon does not obtain a sufficiently smooth surface the time required for the patient's recovery may be increased, the strength of a bond between the bone and a prosthesis may be impaired, and the reliability of the prosthesis ~ay even be jeopardized. If the surface is so uneven that substantial portions of the bone remain unloaded, the unloaded portion of the bone may resorb or dissolve into the body, causing further weakening of the bone and the bond between the bone and prosthesis.
Summary of the Invention -The invention provides a rasp adapted for substantially evenly rasping generally hard tissue, such as bone, cartilage and associated tissue to obtain a smooth surface to, for example, enhance bonding with a prosthesis, and a method of manufacturing such a rasp. The rasp is designed to be readily attached to and detached from a powered surgical device, and is designed to avoid clogging of the cutting surfaces of the rasp by the tissue.
Generally, the rasp of the invention comprises a generally plate-like body having opposite generally parallel major surface portions, and attaching means on the O~
body for detachal?ly attaching the rasp to a powered device for driving the rasp. A plurality of rasp portions are arranged along the rasp ~or substantially evenly rasping hard tissue. Each rasp portion has a center, and a 5 plurality of slots through the body extending generally radially outwardly from the center of the portion to define a plurality of cantilever cutting members extending generally radially inwardly of the rasp portion generally toward the center of the rasp portion and separated from l0 one another by the slots. The cutting members are bent to project outwardly from the major surface portions of the body, with alternating members of each rasp portion being bent to project outwardly from alternating major surface portions of the body.
The method of manufacturing the rasp includes the steps of providing a hardened stainless steel plate having opposite generally parallel major surfaces, and forming means on the plate for detachably attaching the rasp to a powered device for driving the rasp. A plurality of rasp portions are arranged along the rasp for substantially evenly rasping hard tissue. Each rasp portion is formed by laser cutting a plurality of slots through the plate to extend generally radially outwardly from a center to a perimeter to define a plurality of cantilever cutting members extending radially inwardly of the rasp portion, and bending the cutting members to project outwardly from the major surfaces of the plate with alternating members of the rasp portion being bent outwardly from alternating respective major surfaces of the plate.
Other features will be in part apparent and in part pointed out hereinafter.
Brief_Descr~E~ion of the Drawin~
The invention will be further described with reference to the drawing wherein corresponding reference characters indicate corresponding parts throughout the several views of the drawing, and wherein:
~(t~
~ ig. l is a top plan view of a rasp of the invention, illustrating a preferred arrangement of rasp portions along the rasp;
Fig. 2 is an enlarged fragmentary top plan view 5 of one of the rasp portions of Fig. l; and Fig. 3 is a cross-sectional view substantially along line 3 3 of Fig. 2.
Detailed Description __ As shown in Fig. 1, a rasp of the invention is designated in its entirety by the reference numeral 10.
The rasp 10 is adapted for rasping generally hard tissue, such as bone, cartilage and associated tissue. The rasp 10 is designed to be attached to a source of 15 oscillating-pivoting motion via some type of releasable attaching mechanism (not shown), such as the attaching assembly for an osteotomy saw blade disclosed in coassigned U.S. Pat. No. 4,386,609, or the quick release mechanism for surgical devices disclosed in coassigned U.S. Pat. No.
20 3,943,934. As used herein, "rasp" refers to a rasp blade, body or generally plate-like structure, and is not intended to be limited to such a rasp blade, body or plate-like structure in combination with a power source, or the mechanism for attaching the rasp to the power source.
The rasp 10 generally comprises an elongate generally plate-like body 12 of hardened stainless steel, such as 301/302 SST full hard stainless steel. As used herein, "plate-like" refers to the substantially flat surfaces of the body 12, and does not require a circular 30 outline. The body 12 has opposite generally parallel major surface portions or sides 14 and 16, and a thickness between the surfaces 14 and 16 of, for example, approximately lmm (0.04 in.). Means 18 is provided on the body 12 for detachably attaching the rasp 10 to a powered 35 device (not shown) for driving the rasp 10, for example, via one of the attaching assemblies discussed above. A
plurality of rasp portions 20 are suitably arranged along the rasp 10 for substantially evenly rasping hard tissue.
As shown in Fig. 2, each rasp portion 20 has an open center 22, and a plurality of slots 2~1 through the body 12 extellcling genera]ly radially outwardly from the center 22 of the portion 20. The slots 24 define a 5 plurality (e.g., 6) of cantilever cutting members 26A, 26B
extending generally radially inwardly of the rasp portion 20 generally toward the center 22 of the rasp portion 20.
The cutting members 26A, 26B are separated from one another by the slots 24. The cutting members 26A, 26B are bent to 10 project outwardly from the major surface portions 14 and 16 or the body 12, with alternating members 26A or 26B of each rasp portion 20 being bent to project outwardly from alternating respective major surface portions 14 or 16 of the body 12 so that either surface portion 14 or 16 may be 15 used for rasping. That is, the three cutting members designated 26A are bent to project outwardly of respective surface portion 14 (upwardly in Fig. 3), and the three cutting members designated 26B are bent to project outward:Ly of respective surface portion 16 (downwardly in 20 Fig. 3).
The center 22 and slots 24 of each rasp portion 20 are preferably laser-cut through the body by a carbon-dioxide laser, such as the laser sold under the trade designation "Trumatic 180 type 93031" by Trumpf 25 G.m.b.H. & Co. of Ditzingen, West Germany, or the "Model VA15" laser sold by Lumonics Material Processing Corp. of Eden Prairie, Minnesota. Each slot 24 is cut to have a width W (Fig. 23 sufficiently great to permit rasped tissue to flow through the slots 24 during rasping (e.g., a width 30 W of approximately 0.1-lmm, preferably 0.2mm, separating adjacent cutting members).
Each cutting member 26A, 26B is generally triangular (Fig. 2), and has a free cutting point 28A or 28B spaced approximately 0.2-2mm (preferably 0.3-0.7mm) 35 from the respective major surface portion 14 or 16 of the body 12. The perimeter of each rasp portion 20 is generally hexagonal, as defined by the attached bases of ~(30~ ~
the six cuttillq members 26A, 26B. Each cuttiny member 26A, 26B extends general]y radially inwardly from a respective side of the hexagonal perimeter toward the center 22 of the rasp portion 20. The cutting members 26A, 26B are bent 5 outwardly from the major surface portions 14 and 16 of the body 12 at an angle A (Fig. 3) of approximately 10-45 degrees (preferably 20-25 degrees) with respect to the respective major surface portion 14 or 16, and each cutting member 26A, 26B has a length L of approximately 2-4mm (e.g., 2.4mm) between the free cutting point 28A or 28B and the perimeter of the rasp portion 20. The free cutting points 28A, 28B of the members 26A and 26B of each rasp portion 20 approximately define surface points along an imaginary cylinder having a diameter of approximately 0.1-3mm (e.g., 0.8mm), and a central longitudinal axis AX-l generally perpendicular to the major surface portions 14 and 16 of the body 12.
As shown in Fig. 1, the rasp portions 20 are arranged in a pattern wherein there is increasing spacing between the rasp portions 20 in the direction away from the center C-l of the attaching means 18 (downwardly in Fig.
1), which is also the center of pivoting-oscillating motion when the rasp :L0 is being used. For example, the rasp portions 20 may be arranged along substantially equally-spaced radial lines RL extending generally radially outwardly from the center C-l of the attaching means 18 at approximately two degree intervals. Because the radial lines RL diverge from one another in the direction away from the center C-l of the attaching means 18, the rasp portions 20 are spaced farther apart adjacent the outward end 30 (downward end in Fig. 1) of the rasp 10 than they are closer to the center C-l. Greater spacing of cutting surfaces (rasp portions) adjacent the outward end 30 facilitates even rasping of tissue, since the outward end 30 of the rasp 10 is the fastest moving part of the rasp during use.
~(J~J~
~ 1O~e spccifically, the rasp portions 20 are arranged along the radial lines RL in staggered arcuate rows R-1 (ancl preferably R-2 and R-3) extending obliquely with respect to the radial lines RL and with respect to the 5 directlon of oscillating motion. The rasp portions 20 of any row R-l, R-2, or R-3 are staggered with respect to the intended direction of motion of the rasp 10. For example, each row R-l is staggered with respect to one of the series of circumferences CR about the center C-l of the attaching means 18 that are arranged serially outwardly from the center C-l. The intersecting arcuate rows R-l, R-2, and R-3, along which the rasp portions 20 are arranged, are preferably substantially centered with respect to an axis or center offset from the center C-l of the attaching means lS 18 (e.g., R-l may be arcuate about a center C-2). Rows R-l are preferably spaced farther apart in the direction toward the outward end 30 of the rasp 10.
The attaching means 18 may comprise a specially-configured inward end portion 32 (Fig. 1) of the 20 body 12 opposite the outward end 30, similar to the end portion described in coassigned U.S. Pat. No. 4,386,60g, although other types of attaching means are also contemplated. A through aperture 34 is formed between the major surface portions 14 and 16. The through aperture 34 includes a narrow aperture portion 36 defined by spaced parallel walls opening through the inward (upward in Fig.
1) end or edge of the body 12, and a larger aperture portion 38 spaced from the inward edge of the body 12 and defined by octagonally arranged walls, as illustrated in Fig. 1, but which could be defined by a circular wall. A
projection 40 from one of the major surface portions, e.g., 14, may be provided generally adjacent the through aperture 34 centrally of the width of the body 12 and between the aperture 34 and the rasp portions 20.
As various changes could be made in the above constructions and methods without departing from the scope of the invention, it is intended that all matter contained 5~
in the above description or shown in the accompanyin~
drawing be interpreted as illustrative and not in a limitin~ sense.
5(~
BONE RASP
The in~ention relates generally to rasps, and more particular]y to a rasp adapted for rasping generally hard tissue, such as bone, cartilage and associated tissue.
Background of the Invention Orthopedic surgeons frequently desire smoother cut surfaces than they have been able to consistently obtain by sawing a section of bone, e.g., for secure engagement with a suitable prosthesis. Sometimes surgeons attempt to smooth out a freshly cut surface by running the side of the saw blade along the surface, possibly leading to bone necrosis (i.e., bone cell death) due to overheating if the saw is run too long. However, if the surgeon does not obtain a sufficiently smooth surface the time required for the patient's recovery may be increased, the strength of a bond between the bone and a prosthesis may be impaired, and the reliability of the prosthesis ~ay even be jeopardized. If the surface is so uneven that substantial portions of the bone remain unloaded, the unloaded portion of the bone may resorb or dissolve into the body, causing further weakening of the bone and the bond between the bone and prosthesis.
Summary of the Invention -The invention provides a rasp adapted for substantially evenly rasping generally hard tissue, such as bone, cartilage and associated tissue to obtain a smooth surface to, for example, enhance bonding with a prosthesis, and a method of manufacturing such a rasp. The rasp is designed to be readily attached to and detached from a powered surgical device, and is designed to avoid clogging of the cutting surfaces of the rasp by the tissue.
Generally, the rasp of the invention comprises a generally plate-like body having opposite generally parallel major surface portions, and attaching means on the O~
body for detachal?ly attaching the rasp to a powered device for driving the rasp. A plurality of rasp portions are arranged along the rasp ~or substantially evenly rasping hard tissue. Each rasp portion has a center, and a 5 plurality of slots through the body extending generally radially outwardly from the center of the portion to define a plurality of cantilever cutting members extending generally radially inwardly of the rasp portion generally toward the center of the rasp portion and separated from l0 one another by the slots. The cutting members are bent to project outwardly from the major surface portions of the body, with alternating members of each rasp portion being bent to project outwardly from alternating major surface portions of the body.
The method of manufacturing the rasp includes the steps of providing a hardened stainless steel plate having opposite generally parallel major surfaces, and forming means on the plate for detachably attaching the rasp to a powered device for driving the rasp. A plurality of rasp portions are arranged along the rasp for substantially evenly rasping hard tissue. Each rasp portion is formed by laser cutting a plurality of slots through the plate to extend generally radially outwardly from a center to a perimeter to define a plurality of cantilever cutting members extending radially inwardly of the rasp portion, and bending the cutting members to project outwardly from the major surfaces of the plate with alternating members of the rasp portion being bent outwardly from alternating respective major surfaces of the plate.
Other features will be in part apparent and in part pointed out hereinafter.
Brief_Descr~E~ion of the Drawin~
The invention will be further described with reference to the drawing wherein corresponding reference characters indicate corresponding parts throughout the several views of the drawing, and wherein:
~(t~
~ ig. l is a top plan view of a rasp of the invention, illustrating a preferred arrangement of rasp portions along the rasp;
Fig. 2 is an enlarged fragmentary top plan view 5 of one of the rasp portions of Fig. l; and Fig. 3 is a cross-sectional view substantially along line 3 3 of Fig. 2.
Detailed Description __ As shown in Fig. 1, a rasp of the invention is designated in its entirety by the reference numeral 10.
The rasp 10 is adapted for rasping generally hard tissue, such as bone, cartilage and associated tissue. The rasp 10 is designed to be attached to a source of 15 oscillating-pivoting motion via some type of releasable attaching mechanism (not shown), such as the attaching assembly for an osteotomy saw blade disclosed in coassigned U.S. Pat. No. 4,386,609, or the quick release mechanism for surgical devices disclosed in coassigned U.S. Pat. No.
20 3,943,934. As used herein, "rasp" refers to a rasp blade, body or generally plate-like structure, and is not intended to be limited to such a rasp blade, body or plate-like structure in combination with a power source, or the mechanism for attaching the rasp to the power source.
The rasp 10 generally comprises an elongate generally plate-like body 12 of hardened stainless steel, such as 301/302 SST full hard stainless steel. As used herein, "plate-like" refers to the substantially flat surfaces of the body 12, and does not require a circular 30 outline. The body 12 has opposite generally parallel major surface portions or sides 14 and 16, and a thickness between the surfaces 14 and 16 of, for example, approximately lmm (0.04 in.). Means 18 is provided on the body 12 for detachably attaching the rasp 10 to a powered 35 device (not shown) for driving the rasp 10, for example, via one of the attaching assemblies discussed above. A
plurality of rasp portions 20 are suitably arranged along the rasp 10 for substantially evenly rasping hard tissue.
As shown in Fig. 2, each rasp portion 20 has an open center 22, and a plurality of slots 2~1 through the body 12 extellcling genera]ly radially outwardly from the center 22 of the portion 20. The slots 24 define a 5 plurality (e.g., 6) of cantilever cutting members 26A, 26B
extending generally radially inwardly of the rasp portion 20 generally toward the center 22 of the rasp portion 20.
The cutting members 26A, 26B are separated from one another by the slots 24. The cutting members 26A, 26B are bent to 10 project outwardly from the major surface portions 14 and 16 or the body 12, with alternating members 26A or 26B of each rasp portion 20 being bent to project outwardly from alternating respective major surface portions 14 or 16 of the body 12 so that either surface portion 14 or 16 may be 15 used for rasping. That is, the three cutting members designated 26A are bent to project outwardly of respective surface portion 14 (upwardly in Fig. 3), and the three cutting members designated 26B are bent to project outward:Ly of respective surface portion 16 (downwardly in 20 Fig. 3).
The center 22 and slots 24 of each rasp portion 20 are preferably laser-cut through the body by a carbon-dioxide laser, such as the laser sold under the trade designation "Trumatic 180 type 93031" by Trumpf 25 G.m.b.H. & Co. of Ditzingen, West Germany, or the "Model VA15" laser sold by Lumonics Material Processing Corp. of Eden Prairie, Minnesota. Each slot 24 is cut to have a width W (Fig. 23 sufficiently great to permit rasped tissue to flow through the slots 24 during rasping (e.g., a width 30 W of approximately 0.1-lmm, preferably 0.2mm, separating adjacent cutting members).
Each cutting member 26A, 26B is generally triangular (Fig. 2), and has a free cutting point 28A or 28B spaced approximately 0.2-2mm (preferably 0.3-0.7mm) 35 from the respective major surface portion 14 or 16 of the body 12. The perimeter of each rasp portion 20 is generally hexagonal, as defined by the attached bases of ~(30~ ~
the six cuttillq members 26A, 26B. Each cuttiny member 26A, 26B extends general]y radially inwardly from a respective side of the hexagonal perimeter toward the center 22 of the rasp portion 20. The cutting members 26A, 26B are bent 5 outwardly from the major surface portions 14 and 16 of the body 12 at an angle A (Fig. 3) of approximately 10-45 degrees (preferably 20-25 degrees) with respect to the respective major surface portion 14 or 16, and each cutting member 26A, 26B has a length L of approximately 2-4mm (e.g., 2.4mm) between the free cutting point 28A or 28B and the perimeter of the rasp portion 20. The free cutting points 28A, 28B of the members 26A and 26B of each rasp portion 20 approximately define surface points along an imaginary cylinder having a diameter of approximately 0.1-3mm (e.g., 0.8mm), and a central longitudinal axis AX-l generally perpendicular to the major surface portions 14 and 16 of the body 12.
As shown in Fig. 1, the rasp portions 20 are arranged in a pattern wherein there is increasing spacing between the rasp portions 20 in the direction away from the center C-l of the attaching means 18 (downwardly in Fig.
1), which is also the center of pivoting-oscillating motion when the rasp :L0 is being used. For example, the rasp portions 20 may be arranged along substantially equally-spaced radial lines RL extending generally radially outwardly from the center C-l of the attaching means 18 at approximately two degree intervals. Because the radial lines RL diverge from one another in the direction away from the center C-l of the attaching means 18, the rasp portions 20 are spaced farther apart adjacent the outward end 30 (downward end in Fig. 1) of the rasp 10 than they are closer to the center C-l. Greater spacing of cutting surfaces (rasp portions) adjacent the outward end 30 facilitates even rasping of tissue, since the outward end 30 of the rasp 10 is the fastest moving part of the rasp during use.
~(J~J~
~ 1O~e spccifically, the rasp portions 20 are arranged along the radial lines RL in staggered arcuate rows R-1 (ancl preferably R-2 and R-3) extending obliquely with respect to the radial lines RL and with respect to the 5 directlon of oscillating motion. The rasp portions 20 of any row R-l, R-2, or R-3 are staggered with respect to the intended direction of motion of the rasp 10. For example, each row R-l is staggered with respect to one of the series of circumferences CR about the center C-l of the attaching means 18 that are arranged serially outwardly from the center C-l. The intersecting arcuate rows R-l, R-2, and R-3, along which the rasp portions 20 are arranged, are preferably substantially centered with respect to an axis or center offset from the center C-l of the attaching means lS 18 (e.g., R-l may be arcuate about a center C-2). Rows R-l are preferably spaced farther apart in the direction toward the outward end 30 of the rasp 10.
The attaching means 18 may comprise a specially-configured inward end portion 32 (Fig. 1) of the 20 body 12 opposite the outward end 30, similar to the end portion described in coassigned U.S. Pat. No. 4,386,60g, although other types of attaching means are also contemplated. A through aperture 34 is formed between the major surface portions 14 and 16. The through aperture 34 includes a narrow aperture portion 36 defined by spaced parallel walls opening through the inward (upward in Fig.
1) end or edge of the body 12, and a larger aperture portion 38 spaced from the inward edge of the body 12 and defined by octagonally arranged walls, as illustrated in Fig. 1, but which could be defined by a circular wall. A
projection 40 from one of the major surface portions, e.g., 14, may be provided generally adjacent the through aperture 34 centrally of the width of the body 12 and between the aperture 34 and the rasp portions 20.
As various changes could be made in the above constructions and methods without departing from the scope of the invention, it is intended that all matter contained 5~
in the above description or shown in the accompanyin~
drawing be interpreted as illustrative and not in a limitin~ sense.
Claims (10)
1. A rasp adapted for rasping generally hard tissue, such as bone, cartilage and associated tissue, the rasp comprising a generally plate-like body having opposite generally parallel major surface portions, attaching means on the body for detachably attaching the rasp to a powered device for driving the rasp, and a plurality of rasp portions arranged along the rasp for substantially evenly rasping hard tissue, each rasp portion having a center, and a plurality of slots through the body extending generally radially outwardly from the center of the portion to define a plurality of cantilever cutting members extending generally radially inwardly of the rasp portion generally toward the center of the rasp portion and separated from one another by the slots, the cutting members being bent to project outwardly from the major surface portions of the body with alternating members of each rasp portion being bent to project outwardly from opposite surface portions of the body.
2. A rasp according to claim 1 wherein the slots have a width sufficiently great to permit rasped tissue to flow through the slots during rasping, the center and slots of each rasp portion being laser-cut through the body.
3. A rasp according to claim 2 wherein each cutting member is generally triangular, and has a free cutting point spaced approximately 0.2-2mm from a respective major surface portion of the body, the cutting members being bent outwardly from a respective major surface portion of the body at an angle of approximately 10-45 degrees with respect to the major surface portions of the body.
4. A rasp according to claim 1 wherein the attaching means is adapted for detachably attaching the rasp to a source of oscillating motion, the rasp portions being arranged along substantially equally-spaced radial lines extending generally radially outwardly from the center of the attaching means so that the rasp portions are arranged along substantially equally-spaced lines extending generally radially outwardly from the center of oscillating motion when the rasp is oscillating, the rasp portions being arranged along the radial lines in staggered rows extending obliquely with respect to the radial lines and with respect to the direction of oscillating motion.
5. A rasp according to claim 4 wherein the rasp portions are also arranged along arcs centered with respect to an axis offset from the attaching means.
6. A method of manufacturing a rasp adapted for rasping generally hard tissue, such as bone, cartilage and associated tissue, the method comprising the following steps:
providing a hardened stainless steel plate having opposite generally parallel major surfaces;
forming attaching means on the plate for detachably attaching the rasp to a powered device for driving the rasp; and forming a plurality of rasp portions arranged along the rasp for substantially evenly rasping hard tissue, including the steps of forming each rasp portion by:
laser cutting a plurality of slots through the plate to extend generally radially outwardly from a center to a perimeter to define a plurality of cantilever cutting members extending radially inwardly of the rasp portion;
and bending the cutting members to project outwardly from the major surfaces of the plate with alternating members of the rasp portion being bent outwardly from alternating respective major surfaces of the plate.
providing a hardened stainless steel plate having opposite generally parallel major surfaces;
forming attaching means on the plate for detachably attaching the rasp to a powered device for driving the rasp; and forming a plurality of rasp portions arranged along the rasp for substantially evenly rasping hard tissue, including the steps of forming each rasp portion by:
laser cutting a plurality of slots through the plate to extend generally radially outwardly from a center to a perimeter to define a plurality of cantilever cutting members extending radially inwardly of the rasp portion;
and bending the cutting members to project outwardly from the major surfaces of the plate with alternating members of the rasp portion being bent outwardly from alternating respective major surfaces of the plate.
7. A method according to claim 6 wherein the step of laser-cutting a plurality of slots includes laser-cutting the slots to have a width of approximately 0.1-lmm separating adjacent cutting members and to define the cutting members as generally triangular and having a free cutting point, and the step of bending the cutting members includes bending each cutting member such that its free cutting point is spaced approximately 0.2-2mm from its respective major surface of the plate.
8. A method according to claim 7 wherein the step of laser-cutting a plurality of slots includes cutting the slots with a carbon dioxide laser to define six of the aforesaid cutting members in each rasp portion, with each cutting member having a length of approximately 2-4mm extending generally radially inwardly from a respective side of a hexagonal perimeter of the portion to the free cutting point; the step of bending the cutting members including bending the members outwardly from the opposite major surfaces of the plate at an angle of approximately 10-45 degrees with respect to the major surfaces of the plate, with the free cutting points of the members of each rasp portion approximately defining surface points along a cylinder having a diameter of approximately 0.1-3mm and a central longitudinal axis generally perpendicular to the major surfaces of the plate.
9. A method according to claim 6 wherein the attaching means is adapted for detachably attaching the rasp to a source of oscillating motion, the step of forming rasp portions including the step of arranging the rasp portions along substantially equally-spaced radial lines extending generally radially outwardly from the center of the attaching means so that the rasp portions are arranged along substantially equally-spaced lines extending generally radially outwardly from the center of oscillating motion when the rasp is oscillating, the step of arranging the rasp portions further including arranging the rasp portions along the radial lines in staggered rows extending obliquely with respect to the radial lines and with respect to the direction of oscillating motion.
10. A method according to claim 9 wherein the step of arranging the rasp portions further includes arranging the rasp portions along arcs centered with respect to an axis offset from the attaching means.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US295,254 | 1989-01-09 | ||
US07/295,254 US4872452A (en) | 1989-01-09 | 1989-01-09 | Bone rasp |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2005084A1 true CA2005084A1 (en) | 1990-07-09 |
Family
ID=23136902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002005084A Abandoned CA2005084A1 (en) | 1989-01-09 | 1989-12-11 | Bone rasp |
Country Status (5)
Country | Link |
---|---|
US (1) | US4872452A (en) |
EP (1) | EP0378002B1 (en) |
JP (1) | JPH02234756A (en) |
CA (1) | CA2005084A1 (en) |
DE (1) | DE68911120T2 (en) |
Families Citing this family (100)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE36269E (en) * | 1993-01-21 | 1999-08-17 | Minnesota Mining And Manufacturing Company | Saw blade retention system |
US5340129A (en) * | 1993-01-21 | 1994-08-23 | Minnesota Mining And Manufacturing Company | Saw blade retention system |
US5489285A (en) * | 1994-02-23 | 1996-02-06 | Hall Surgical, Div. Of Zimmer, Inc. | Surgical saw blade and clamp |
US6695848B2 (en) | 1994-09-02 | 2004-02-24 | Hudson Surgical Design, Inc. | Methods for femoral and tibial resection |
US5554165A (en) * | 1995-02-09 | 1996-09-10 | Hall Surgical, Div. Of Zimmer, Inc. | Surgical blade and hub |
US5725531A (en) * | 1995-12-27 | 1998-03-10 | Shapiro; Jules S. | Reaming device |
US9603711B2 (en) | 2001-05-25 | 2017-03-28 | Conformis, Inc. | Patient-adapted and improved articular implants, designs and related guide tools |
US8545569B2 (en) | 2001-05-25 | 2013-10-01 | Conformis, Inc. | Patient selectable knee arthroplasty devices |
US8882847B2 (en) | 2001-05-25 | 2014-11-11 | Conformis, Inc. | Patient selectable knee joint arthroplasty devices |
US8735773B2 (en) | 2007-02-14 | 2014-05-27 | Conformis, Inc. | Implant device and method for manufacture |
US8480754B2 (en) | 2001-05-25 | 2013-07-09 | Conformis, Inc. | Patient-adapted and improved articular implants, designs and related guide tools |
US8556983B2 (en) | 2001-05-25 | 2013-10-15 | Conformis, Inc. | Patient-adapted and improved orthopedic implants, designs and related tools |
US8771365B2 (en) | 2009-02-25 | 2014-07-08 | Conformis, Inc. | Patient-adapted and improved orthopedic implants, designs, and related tools |
AU772012B2 (en) | 1998-09-14 | 2004-04-08 | Board Of Trustees Of The Leland Stanford Junior University | Assessing the condition of a joint and preventing damage |
US7239908B1 (en) | 1998-09-14 | 2007-07-03 | The Board Of Trustees Of The Leland Stanford Junior University | Assessing the condition of a joint and devising treatment |
DE29820903U1 (en) * | 1998-11-23 | 2000-04-06 | Coripharm Medizinprodukte Gmbh | Partial endoprosthesis for knee joints |
US6302406B1 (en) | 2000-01-10 | 2001-10-16 | Microaire Surgical Instruments, Inc. | Connector assembly for a surgical saw blade |
DE60139262D1 (en) | 2000-08-28 | 2009-08-27 | Disc Dynamics Inc | SYSTEM FOR RECONSTRUCTING JOINT SURFACES OF MAMMALS |
DE60138116D1 (en) | 2000-09-14 | 2009-05-07 | Univ R | ASSESSMENT OF THE CONDITION OF A JOINT AND PLANNING OF A TREATMENT |
ATE413135T1 (en) | 2000-09-14 | 2008-11-15 | Univ Leland Stanford Junior | ASSESSMENT OF THE CONDITION OF A JOINT AND THE LOSS OF CARTILAGE TISSUE |
US8062377B2 (en) | 2001-03-05 | 2011-11-22 | Hudson Surgical Design, Inc. | Methods and apparatus for knee arthroplasty |
US9308091B2 (en) | 2001-05-25 | 2016-04-12 | Conformis, Inc. | Devices and methods for treatment of facet and other joints |
EP1389980B1 (en) | 2001-05-25 | 2011-04-06 | Conformis, Inc. | Methods and compositions for articular resurfacing |
US20050075642A1 (en) * | 2001-12-19 | 2005-04-07 | Felt Jeffrey C. | Bone smoothing method and system |
AR038680A1 (en) | 2002-02-19 | 2005-01-26 | Synthes Ag | INTERVERTEBRAL IMPLANT |
ATE398432T1 (en) * | 2002-07-11 | 2008-07-15 | Advanced Bio Surfaces Inc | DEVICE FOR INTERMEDIATE POSITIONING ARTHROPLASTY |
US6932821B2 (en) * | 2002-09-28 | 2005-08-23 | Precimed S.A. | Femoral broach with undercut teeth |
EP1555962B1 (en) | 2002-10-07 | 2011-02-09 | Conformis, Inc. | Minimally invasive joint implant with 3-dimensional geometry matching the articular surfaces |
US7018381B2 (en) * | 2002-10-18 | 2006-03-28 | Zimmer Technology, Inc. | Apparatus for removing an osteophyte |
AU2003290757A1 (en) | 2002-11-07 | 2004-06-03 | Conformis, Inc. | Methods for determing meniscal size and shape and for devising treatment |
US7189239B2 (en) * | 2003-01-14 | 2007-03-13 | Synvasive Technology, Inc. A California Corporation | Saw blade having a prearranged hub section |
EP2457541A1 (en) | 2003-02-06 | 2012-05-30 | Synthes GmbH | Implant between vertebrae |
DE10316781B4 (en) * | 2003-04-11 | 2005-04-07 | Nolde, Martin, Dr.med. | Rasp attachment for a motor-driven surgical hand-held device |
WO2004089226A1 (en) | 2003-04-11 | 2004-10-21 | Martin Nolde | Rasp attachment for a motor-driven surgical hand-held device |
US9814539B2 (en) | 2004-01-14 | 2017-11-14 | Puget Bioventures Llc | Methods and apparatus for conformable prosthetic implants |
US8048080B2 (en) | 2004-10-15 | 2011-11-01 | Baxano, Inc. | Flexible tissue rasp |
US7887538B2 (en) | 2005-10-15 | 2011-02-15 | Baxano, Inc. | Methods and apparatus for tissue modification |
US20100331883A1 (en) | 2004-10-15 | 2010-12-30 | Schmitz Gregory P | Access and tissue modification systems and methods |
US7938830B2 (en) | 2004-10-15 | 2011-05-10 | Baxano, Inc. | Powered tissue modification devices and methods |
US7578819B2 (en) | 2005-05-16 | 2009-08-25 | Baxano, Inc. | Spinal access and neural localization |
US8430881B2 (en) | 2004-10-15 | 2013-04-30 | Baxano, Inc. | Mechanical tissue modification devices and methods |
US8221397B2 (en) | 2004-10-15 | 2012-07-17 | Baxano, Inc. | Devices and methods for tissue modification |
US8257356B2 (en) | 2004-10-15 | 2012-09-04 | Baxano, Inc. | Guidewire exchange systems to treat spinal stenosis |
US7738969B2 (en) | 2004-10-15 | 2010-06-15 | Baxano, Inc. | Devices and methods for selective surgical removal of tissue |
US9247952B2 (en) | 2004-10-15 | 2016-02-02 | Amendia, Inc. | Devices and methods for tissue access |
US20110190772A1 (en) | 2004-10-15 | 2011-08-04 | Vahid Saadat | Powered tissue modification devices and methods |
US7555343B2 (en) | 2004-10-15 | 2009-06-30 | Baxano, Inc. | Devices and methods for selective surgical removal of tissue |
US9101386B2 (en) | 2004-10-15 | 2015-08-11 | Amendia, Inc. | Devices and methods for treating tissue |
WO2006044727A2 (en) | 2004-10-15 | 2006-04-27 | Baxano, Inc. | Devices and methods for tissue removal |
US8062300B2 (en) | 2006-05-04 | 2011-11-22 | Baxano, Inc. | Tissue removal with at least partially flexible devices |
US8613745B2 (en) | 2004-10-15 | 2013-12-24 | Baxano Surgical, Inc. | Methods, systems and devices for carpal tunnel release |
US20060282169A1 (en) * | 2004-12-17 | 2006-12-14 | Felt Jeffrey C | System and method for upper extremity joint arthroplasty |
US7267690B2 (en) | 2005-03-09 | 2007-09-11 | Vertebral Technologies, Inc. | Interlocked modular disc nucleus prosthesis |
US20110004215A1 (en) * | 2005-09-12 | 2011-01-06 | Bradley James P | Labrum retracting burr |
US20080086034A1 (en) | 2006-08-29 | 2008-04-10 | Baxano, Inc. | Tissue Access Guidewire System and Method |
US8092456B2 (en) | 2005-10-15 | 2012-01-10 | Baxano, Inc. | Multiple pathways for spinal nerve root decompression from a single access point |
US8366712B2 (en) | 2005-10-15 | 2013-02-05 | Baxano, Inc. | Multiple pathways for spinal nerve root decompression from a single access point |
US8062298B2 (en) | 2005-10-15 | 2011-11-22 | Baxano, Inc. | Flexible tissue removal devices and methods |
US20100305704A1 (en) | 2006-02-27 | 2010-12-02 | Synthes Gmbh | Intervertebral implant with fixation geometry |
US9737414B2 (en) | 2006-11-21 | 2017-08-22 | Vertebral Technologies, Inc. | Methods and apparatus for minimally invasive modular interbody fusion devices |
EP2114312B1 (en) | 2007-02-14 | 2014-01-08 | ConforMIS, Inc. | Method for manufacture of an implant device |
EP2194861A1 (en) | 2007-09-06 | 2010-06-16 | Baxano, Inc. | Method, system and apparatus for neural localization |
US8540774B2 (en) | 2007-11-16 | 2013-09-24 | DePuy Synthes Products, LLC | Low profile intervertebral implant |
US8192436B2 (en) | 2007-12-07 | 2012-06-05 | Baxano, Inc. | Tissue modification devices |
US8682052B2 (en) | 2008-03-05 | 2014-03-25 | Conformis, Inc. | Implants for altering wear patterns of articular surfaces |
WO2010009093A2 (en) | 2008-07-14 | 2010-01-21 | Baxano, Inc | Tissue modification devices |
US9314253B2 (en) | 2008-07-01 | 2016-04-19 | Amendia, Inc. | Tissue modification devices and methods |
US8398641B2 (en) | 2008-07-01 | 2013-03-19 | Baxano, Inc. | Tissue modification devices and methods |
US8409206B2 (en) | 2008-07-01 | 2013-04-02 | Baxano, Inc. | Tissue modification devices and methods |
US9192419B2 (en) | 2008-11-07 | 2015-11-24 | DePuy Synthes Products, Inc. | Zero-profile interbody spacer and coupled plate assembly |
EP2405865B1 (en) | 2009-02-24 | 2019-04-17 | ConforMIS, Inc. | Automated systems for manufacturing patient-specific orthopedic implants and instrumentation |
CA2749673A1 (en) | 2009-03-13 | 2010-09-16 | Baxano, Inc. | Flexible neural localization devices and methods |
EP2408381B1 (en) | 2009-03-16 | 2014-11-12 | Synthes GmbH | System for stabilizing vertebrae in spine surgery through a lateral access channel |
US8394102B2 (en) | 2009-06-25 | 2013-03-12 | Baxano, Inc. | Surgical tools for treatment of spinal stenosis |
US9028553B2 (en) | 2009-11-05 | 2015-05-12 | DePuy Synthes Products, Inc. | Self-pivoting spinal implant and associated instrumentation |
CA2782137A1 (en) | 2009-12-11 | 2011-06-16 | Conformis, Inc. | Patient-specific and patient-engineered orthopedic implants |
US8556901B2 (en) | 2009-12-31 | 2013-10-15 | DePuy Synthes Products, LLC | Reciprocating rasps for use in an orthopaedic surgical procedure |
US8506569B2 (en) | 2009-12-31 | 2013-08-13 | DePuy Synthes Products, LLC | Reciprocating rasps for use in an orthopaedic surgical procedure |
EP2654626B1 (en) | 2010-12-21 | 2016-02-24 | Synthes GmbH | Intervertebral implants and systems |
US8486076B2 (en) | 2011-01-28 | 2013-07-16 | DePuy Synthes Products, LLC | Oscillating rasp for use in an orthopaedic surgical procedure |
EP2754419B1 (en) | 2011-02-15 | 2024-02-07 | ConforMIS, Inc. | Patient-adapted and improved orthopedic implants |
JP5864129B2 (en) * | 2011-05-18 | 2016-02-17 | 株式会社パテントアイランド | File |
USD716944S1 (en) | 2011-08-03 | 2014-11-04 | Synvasive Technology, Inc. | Surgical saw blade hub |
WO2013020115A2 (en) | 2011-08-04 | 2013-02-07 | Milwaukee Electric Tool Corporation | Reciprocating saw blade |
US9302405B2 (en) | 2011-10-28 | 2016-04-05 | Robert Bosch Gmbh | Planer accessory tool for an oscillating power tool |
US8858559B2 (en) * | 2012-02-06 | 2014-10-14 | Medtronic Ps Medical, Inc. | Saw blade stability and collet system mechanism |
US9510953B2 (en) | 2012-03-16 | 2016-12-06 | Vertebral Technologies, Inc. | Modular segmented disc nucleus implant |
USD688543S1 (en) | 2012-03-20 | 2013-08-27 | Milwaukee Electric Tool Corporation | Saw blade |
US11376017B2 (en) * | 2019-07-01 | 2022-07-05 | Fusion Orthopedics, Llc | Surgical instruments including a set of cutting burrs for performing an osteotomy |
BR112015000632B1 (en) * | 2012-07-12 | 2021-06-08 | Synthes Gmbh | Mountain range |
US10022245B2 (en) | 2012-12-17 | 2018-07-17 | DePuy Synthes Products, Inc. | Polyaxial articulating instrument |
DE102013011638B4 (en) | 2013-07-12 | 2015-05-28 | Peter Marks | Surgical processing tool for bone surgery |
USD729600S1 (en) | 2014-05-06 | 2015-05-19 | Milwaukee Electric Tool Corporation | Saw blade |
US9867718B2 (en) | 2014-10-22 | 2018-01-16 | DePuy Synthes Products, Inc. | Intervertebral implants, systems, and methods of use |
US10966843B2 (en) | 2017-07-18 | 2021-04-06 | DePuy Synthes Products, Inc. | Implant inserters and related methods |
US11045331B2 (en) | 2017-08-14 | 2021-06-29 | DePuy Synthes Products, Inc. | Intervertebral implant inserters and related methods |
JP6431641B1 (en) * | 2018-08-22 | 2018-11-28 | 株式会社ミヤタニ | Osteotomy instrument |
USD931069S1 (en) | 2019-05-03 | 2021-09-21 | Tti (Macao Commercial Offshore) Limited | Blade |
US11896236B2 (en) | 2020-08-26 | 2024-02-13 | Crossroads Extremity Systems, Llc | Surgical saw blade |
WO2022108785A1 (en) | 2020-11-18 | 2022-05-27 | Milwaukee Electric Tool Corporation | Accessory for an oscillating power tool |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10088A (en) * | 1853-10-04 | Hiram powers | ||
US499619A (en) * | 1893-06-13 | Alfred weed | ||
US2658258A (en) * | 1950-10-16 | 1953-11-10 | Hawkinson Paul E Co | Tire buffing band |
US2785673A (en) * | 1952-05-06 | 1957-03-19 | Anderson Roger | Femoral prosthesis |
US2847048A (en) * | 1955-01-25 | 1958-08-12 | Lester G Gildersleeve | Perforated rotary grater shell |
US2820281A (en) * | 1956-11-30 | 1958-01-21 | Red Devil Tools | Abrasive article |
GB836051A (en) * | 1957-05-29 | 1960-06-01 | Simmonds Aerocessories Ltd | Improvements in cutting or abrading tools |
US2984892A (en) * | 1957-05-29 | 1961-05-23 | Simmonds Aerocessories Ltd | Cutting or abrading tools |
GB833379A (en) * | 1957-08-10 | 1960-04-21 | Red Devil Tools | Abrasive article |
US2975504A (en) * | 1958-07-11 | 1961-03-21 | Bentham Frank Holdsworth | Rasping appliances and cutters |
US3151347A (en) * | 1962-11-09 | 1964-10-06 | Donald J Tindall | Replaceable facing for abrading tools and process of making same |
US3298411A (en) * | 1964-06-02 | 1967-01-17 | Univ Duke | Comminuting apparatus |
US3468079A (en) * | 1966-09-21 | 1969-09-23 | Kaufman Jack W | Abrasive-like tool device |
US3389447A (en) * | 1967-05-26 | 1968-06-25 | Theobald Elwin | Omnidirectional cutting tool |
US3509611A (en) * | 1968-01-30 | 1970-05-05 | L R Oatey Co The | Rasp file |
AU442257B2 (en) * | 1969-04-01 | 1973-11-05 | Kookaburra Retread Equipment Pty. Limited | Blades for rubber tyre rasps |
SE383980B (en) * | 1971-07-23 | 1976-04-12 | Stanley Tools Ltd | CUTTING OR GRINDING ELEMENT FOR TOOLS |
US3815599A (en) * | 1973-03-02 | 1974-06-11 | W Deyerle | Femoral shaft surgical rasp for use in hip prosthesis surgery |
AT345445B (en) * | 1974-08-06 | 1978-09-11 | Weigand Hanfried Dr Med | MILLING TOOL FOR PREPARING THE PAN BEARING FOR TOTAL PROSTHETIC HIP JOINT REPLACEMENT |
US3943934A (en) * | 1974-09-30 | 1976-03-16 | Minnesota Mining And Manufacturing Company | Quick release mechanism for surgical devices |
DE2543723C3 (en) * | 1975-10-01 | 1978-04-06 | Aesculap-Werke Ag Vormals Jetter & Scheerer, 7200 Tuttlingen | Milling tool for surgical purposes |
DE2621383A1 (en) * | 1976-05-14 | 1977-12-01 | Gardner Denver Gmbh | METHOD OF PLACING IMPLANTS INTO BONE AND APPARATUS |
US4137617A (en) * | 1977-09-07 | 1979-02-06 | Newmayer Rickey L | Circular grater for cutting plastic |
US4386609A (en) * | 1979-12-17 | 1983-06-07 | Minnesota Mining And Manufacturing Company | Attaching assembly for an osteotomy saw blade |
ATE7467T1 (en) * | 1980-02-01 | 1984-06-15 | Johannes Antonius Maria Wopereis | GRATER. |
US4306550A (en) * | 1980-02-06 | 1981-12-22 | Minnesota Mining And Manufacturing Company | Combination including femoral rasp and calcar facing reamer |
US4685181A (en) * | 1983-07-07 | 1987-08-11 | Schwartz Jerry C | Heavy duty rotary disc rasp |
US4552136A (en) * | 1983-10-19 | 1985-11-12 | Howmedica, Inc. | Femoral rasp |
US4587964A (en) * | 1985-02-05 | 1986-05-13 | Zimmer, Inc. | Rasp tool |
US4601289A (en) * | 1985-04-02 | 1986-07-22 | Dow Corning Wright | Femoral trial prosthesis/rasp assembly |
WO1988005645A1 (en) * | 1987-01-29 | 1988-08-11 | Gregory James Roger | Improved method and apparatus for removing prosthetic cement |
-
1989
- 1989-01-09 US US07/295,254 patent/US4872452A/en not_active Expired - Lifetime
- 1989-12-11 CA CA002005084A patent/CA2005084A1/en not_active Abandoned
- 1989-12-22 EP EP89313549A patent/EP0378002B1/en not_active Expired - Lifetime
- 1989-12-22 DE DE68911120T patent/DE68911120T2/en not_active Expired - Fee Related
-
1990
- 1990-01-05 JP JP2000371A patent/JPH02234756A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US4872452A (en) | 1989-10-10 |
EP0378002B1 (en) | 1993-12-01 |
DE68911120T2 (en) | 1994-06-09 |
EP0378002A1 (en) | 1990-07-18 |
DE68911120D1 (en) | 1994-01-13 |
JPH02234756A (en) | 1990-09-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4872452A (en) | Bone rasp | |
US5391169A (en) | Patellar tendon harvester | |
US6503253B1 (en) | Surgical saw blade | |
EP0127994B1 (en) | Arched bridge staple | |
US5718705A (en) | Internal fixation plate | |
US5468247A (en) | Saw blade for powered medical handpiece | |
WO1995013020A1 (en) | Adjustable surgical blade | |
JP3345235B2 (en) | Intramedullary nail for humerus | |
US5344423A (en) | Apparatus and method for milling bone | |
US6217598B1 (en) | End-cutting shaver blade | |
US6730094B2 (en) | Cutting edges for reamers and a method for making same | |
US6485495B1 (en) | Corrugated osteotome blade and method of severing bones and other anatomical structures | |
US5035698A (en) | Arcuate osteotomy blade | |
US8460298B2 (en) | Surgical bur with unequally spaced flutes, flutes with different rake angles and flutes with alternating reliefs | |
US6162227A (en) | Bone cutter | |
US6764452B1 (en) | Bone graft harvester | |
CA2422463C (en) | Overlapping insert for cutting tooth | |
US11559313B2 (en) | Radial saw blade and hub for osteotomy | |
NZ217585A (en) | Circular saw blade with saw chain around periphery | |
CA2007589A1 (en) | Thin footplate rongeur | |
ATE316359T1 (en) | SELF-DRILLING IMPLANT | |
HU0101929D0 (en) | Cutter-hutter nead and method for treatment of cylinders, pipes and analogues | |
US8814872B2 (en) | Double row keel cut saw blade | |
US9522007B2 (en) | Orthopedic saw blade | |
JP2023536842A (en) | Chainsaws, components for chainsaws, and systems for operating saws |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FZDE | Discontinued |