US2243718A - Surgical drill - Google Patents

Surgical drill Download PDF

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Publication number
US2243718A
US2243718A US239046A US23904638A US2243718A US 2243718 A US2243718 A US 2243718A US 239046 A US239046 A US 239046A US 23904638 A US23904638 A US 23904638A US 2243718 A US2243718 A US 2243718A
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Prior art keywords
drill
guide wire
bone
tubular member
arm
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Expired - Lifetime
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US239046A
Inventor
Moreira Francisco Elias Godoy
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Moreira Francisco Elias Godoy
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Application filed by Moreira Francisco Elias Godoy filed Critical Moreira Francisco Elias Godoy
Priority to US239046A priority Critical patent/US2243718A/en
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Publication of US2243718A publication Critical patent/US2243718A/en
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Application status is Expired - Lifetime legal-status Critical

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1613Component parts
    • A61B17/1615Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1613Component parts
    • A61B17/1622Drill handpieces
    • A61B17/1624Drive mechanisms therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1662Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1662Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
    • A61B17/1664Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the hip
    • A61B17/1668Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the hip for the upper femur
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/55Cutting by use of rotating axially moving tool with work-engaging structure other than Tool or tool-support
    • Y10T408/56Adapted to "form" recession in work
    • Y10T408/5605Recession at tool-axis
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/55Cutting by use of rotating axially moving tool with work-engaging structure other than Tool or tool-support
    • Y10T408/564Movable relative to Tool along tool-axis
    • Y10T408/5653Movable relative to Tool along tool-axis with means to bias Tool away from work

Description

May 27, 1941. F.- E. DE G. MOREIRA 3 SURGICAL DRILL Filed Nov.

INVENTOR. W

ATTORNEY.

-llama:

Patented May 27, 1941 UNHTED STATES PAT OFFICE SUIRGllUAL DRILL Francisco Elias de Godoy Moreira, Sao Paulo, [Brazil 6 Claims.

My invention relates to a surgical drill apparatus and more particularly to an attachment for an electric motor designed to drill a channel through the parts of a fractured bone in order to permit or facilitate the entry of a bone-screw therethrough.

In my application filed November 2, 1938, I described a bone-screw having at least two different diameters along its length and I illustrated the entry of said bone-screw into a channel previously drilled for that purpose.

A bone-screw is of particular advantage in the fracture of the femur or hip bone and it is usually applied at the base of the trochanter, through the center of the neck of the femur and anchored in the ball or head thereof.

It is essential that a channel to receive the bone-screw be first drilled through the bone and to insure against any deviation of the drill from its prescribed course, a guide or Kirschner wire is caused to enter the said parts in a manner well known to the art. The Kirschner wire having been properly inserted, a drill having a longitudinal bore is applied thereover and the channel is duly drilled.

Bearing the foregoing in mind, it is an, object of my invention to provide a drill which may be actuated by an electric motor and which is designed to drill the channel to conform to the shape of the bone-screw to be subsequently lodged therein.

Another object of my invention is to provide means in combination with such a drill whereby the degree of penetration of said drill into the bone may b easily ascertained.

Another object of my invention is to provide means in combination with such a drill to insure against the rotation of the Kirschner wire while the drill is rotating around it.

Another object of my invention is to provide an electric motor attachment for such a drill which shall simplify and facilitate the procedure above outlined by affording the operator improved visual access to the site of entry of the drill.

Other objects of my invention will be obvious from the following description it being under stood that the above general statements of the objects of my invention are intended to explain and not to limit it in any manner.

Fig. 1 is a top view, partly in section of my apparatus, the bone operated upon being shown in dotted lines.

Fig. 2 is a section on the line 22 of Fig. 1. Fig. 3 is a longitudinal section through part of the drill.

Fig. 4 is a section on the line 44 of Fig. 1. Fig. 5 is a section on the line 55 ofFig. 1. Fig. 6 is a section on the line fi-6 of Fig. 1. Referring to the drawing, M represents an electric motor which is preferably portable, being directly connected to the drill in the preferred embodiment.

The action of the motor shaft S is translated 7 into perpendicular motion by the endless screw and worm gear mechanism W, which mechanism is located in the housing If] and the worm gear thereof is integral with the jack-shaft 11.

indicia on the periphery of the drill D is operative to adjust the effective length of the drill.

The opposite side of casing is is formed with a wall !8 which wall has the lugs 19 and 20 set thereon in any suitablemanner as by screwing or riveting. The casing l0 may generally be designated as an elbow shaped housing of which one arm is connected to and is in alignment with the motor shaft while the other arm is perpendicular thereto and supports the drill.

Detachably secured to the wall 58, is the tubular member 2 I, which by means of its wall 22 and slots 23 and 24, maybe secured to the wall l8 by receiving the lugs l9 and 28 in the apexes of slots 23 and 24. The tubular member 2! is hollow and is provided with an end nut 25, having a shank 26, which end nut and shank operate as a wall and peg for the coil spring 21 in the tubular member 25. The spring 21 is retained in the tubular member by the post 28, which is provided with a slotted head, and a pin 29 which is adapted for movement in the slot 30 formed in the tubular member 2!. Pressure on the post 28 is therefor effective to depress the spring 21, the pin 29 riding in the slot 33.

It will be noted that the drill D, the jack-shaft H, the worm gear of mechanism W, the wall I8, and the wall 22 are all formed with a central internal bore to receive the Kirschner or guide wire K.

My invention is practiced in the following manner: I

After anesthesia and the incision having been made in the body of the patient being operated upon the femur is exposed, the fracture having previously been reduced by suitable means well known in the art.

After determining the site that the bone-screw will occupy depending on the location of fracture and other facts which are known to the surgeon, the guide wire K is introduced thereat and inserted into the shaft, through the center of the neck and into the ball or head of the femur. This practice is standard and requires no explanation of its procedure. When the guide wire K has been thus inserted it should be tapped with a mallet so as to firmly lodge it in the spongy bone of the head of the femur.

The nut I having been adjusted, the drill D is applied over the guide wire K and the channel through the bone is drilled. The further end of the channel will be of less diameter than the nearer end due to the drill-bits l4 and I5. This result is required so that the channel is shaped according to the particular parts of the bonescrew which will thereafter occupy it, the section drilled by the drill-bit l4, being equivalent to the diameter of the shank of the drive-screw thread portion of the bone-screw.

My apparatus may be used without the tubular member 2|. In this manner, the guide wire K extends through the drill D, the jack-shaft II, the casing ID, the worm gear of mechanism W, and the wall l8, protruding through the outer end of said wall which is provided with an axial bore. As the drill progresses through the bone, more of the guide wire K protrudes through the wall l8 and the extent of penetration may be ascertained. In addition, it is most essential that action of the drill is not transmitted to the guide wire since said guide wire should not rotate during this process. It is obvious that should this occur the guide wire might traverse entirely the head of the femur, and, puncturing its wall, would probably prove fatal to the patient. Therefore, through my apparatus, the guide wire is exposed so that any rotation can be immediately detected, as well as the degree of penetration ascertained.

The tubular member 2| is of assistance in effecting the above results in an improved manher by preventing such rotation. When it is secured to the wall I8 as hereinabove described, the guide wire K can be firmly retained in the slotted head of post 28 which cannot rotate due to the pin 29 in slot 30. Thus the guide wire K is positively retained against rotation, it is visible through the slot 30 so that the degree of penetration of the drill D is ascertained and furthermore, the guide wire K is prevented from dislodging itself from the head of the femur by the pressure of the post 28. As the drill advances in the bone, the coil spring 21 recedes and permits the free longitudinal movement of the guide wire K against the action of said coil spring.

I have shown a preferred embodiment of my invention but it is obvious that numerous changes and omissions may be made without departing from its spirit.

I claim:

1. The combination with a guide wire of a drill attachment for a motor comprising an elbow shaped housing having power transmission mechanism in one arm thereof, driven mechanism located within the other arm thereof, a drill operatively connected to said driven mechanism, said drill, driven mechanism and other arm being formed with an axial bore for the reception of said guide Wire therethrough and gripping means secured to said housing in alignment with said axial bore for engaging and preventing the rotation of said guide wire while said drill is being driven.

2. The combination with a guide wire of a drill attachment for a motor comprising an elbow shaped housing, having power transmission mechanism in one arm thereof, driven mecha nism within the other arm thereof, a drill operatively connected to said driven mechanism, a tubular member secured to said other arm of said housing, spring means within said tubular member, said drill, driven mechanism, other arm and tubular member being formed with an axial bor for the reception of said guide wire therethrough, said guide wire bearing against said spring means against the action of said spring, means, whereby said guide wire is inwardly urged by said spring means.

3. An attachment according to claim 2, wherein said tubular member includes means to prevent rotation of said guid wire.

4. The combination with a guide wire of a drill attachment for a motor comprising an elbow shaped housing having power transmission mechanism in one arm thereof, driven mechanism located within the other arm thereof, a drill operatively connected to said driven mechanism, a tubular member secured to said other arm of said housing in alignment with said drill, said drill, driven mechanism, other arm and tubular member being formed with an axial bore for the reception of said guide wire therethrough, spring means located within said tubular member whereby said guide wire may bear against said spring means, and means within said tubular member to prevent rotation of said guide wire, said tubular member having a slot formed in the wall thereof whereby the degree of penetration of said guide wire within said tubular member may be ascertained.

5. The combination with a guide wire of a drill attachment for a motor comprising an elbow shaped housing having power transmission mechanism in one arm thereof, driven mechanism located within the other arm thereof, a drill operatively connected to said driven mechanism, said drill, driven mechanism, and other arm being formed with an axial bore for the reception of said guide wire therethrough and combined means secured to said housing for preventing rotation of said guide wire and for urging said guide wire inwardly to prevent its outward displacement.

6. A device according to claim 5 wherein said means comprises a head for engaging the free end of said guide wire, a support for said head to prevent the rotation thereof and a spring actuating said head inwardly.

I'FRANCISCO ELIAS DE GODOY MOREIRAA.

US239046A 1938-11-05 1938-11-05 Surgical drill Expired - Lifetime US2243718A (en)

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Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3892232A (en) * 1973-09-24 1975-07-01 Alonzo J Neufeld Method and apparatus for performing percutaneous bone surgery
US4620539A (en) * 1983-07-11 1986-11-04 Andrews E Trent Pistol grip, bone drill
US5374269A (en) * 1990-01-31 1994-12-20 American Cyanamid Company Method and instruments for ACL reconstruction
US5431655A (en) * 1988-10-24 1995-07-11 Cook Incorporated Intraosseous needle
US5441502A (en) * 1993-02-17 1995-08-15 Mitek Surgical Products, Inc. System and method for re-attaching soft tissue to bone
US5569290A (en) * 1995-01-30 1996-10-29 Paul C. McAfee Method of and apparatus for laparoscopic or endoscopic spinal surgery using an unsealed anteriorly inserted transparent trochar
US5601559A (en) * 1988-10-24 1997-02-11 Cook Incorporated Intraosseous needle
US5741253A (en) * 1988-06-13 1998-04-21 Michelson; Gary Karlin Method for inserting spinal implants
US5772661A (en) * 1988-06-13 1998-06-30 Michelson; Gary Karlin Methods and instrumentation for the surgical correction of human thoracic and lumbar spinal disease from the antero-lateral aspect of the spine
US5797909A (en) * 1988-06-13 1998-08-25 Michelson; Gary Karlin Apparatus for inserting spinal implants
US6096038A (en) * 1988-06-13 2000-08-01 Michelson; Gary Karlin Apparatus for inserting spinal implants
US6120502A (en) * 1988-06-13 2000-09-19 Michelson; Gary Karlin Apparatus and method for the delivery of electrical current for interbody spinal arthrodesis
US6123705A (en) * 1988-06-13 2000-09-26 Sdgi Holdings, Inc. Interbody spinal fusion implants
US6149650A (en) * 1988-06-13 2000-11-21 Michelson; Gary Karlin Threaded spinal implant
US6210412B1 (en) 1988-06-13 2001-04-03 Gary Karlin Michelson Method for inserting frusto-conical interbody spinal fusion implants
US6224595B1 (en) 1995-02-17 2001-05-01 Sofamor Danek Holdings, Inc. Method for inserting a spinal implant
US20020138144A1 (en) * 1995-02-17 2002-09-26 Michelson Gary Karlin Threaded frusto-conical interbody spinal fusion implants
US20020198532A1 (en) * 1993-06-10 2002-12-26 Sofamor Danek Holdings, Inc. Apparatus and method of inserting spinal implants
US20030158553A1 (en) * 1988-06-13 2003-08-21 Michelson Gary Karlin Instrumentation for the surgical correction of spinal disease
US6758849B1 (en) 1995-02-17 2004-07-06 Sdgi Holdings, Inc. Interbody spinal fusion implants
US6770074B2 (en) 1988-06-13 2004-08-03 Gary Karlin Michelson Apparatus for use in inserting spinal implants
US20040193175A1 (en) * 2003-03-31 2004-09-30 Maroney Brian J Arthroplasty sizing gauge
US20040193168A1 (en) * 2003-03-31 2004-09-30 Long Jack F. Arthroplasty instruments and associated method
US20050165399A1 (en) * 1995-06-07 2005-07-28 Michelson Gary K. Frusto-conical spinal implant
US20050209597A1 (en) * 2004-03-05 2005-09-22 Long Jack F Surface replacement extractor device and associated method
US20060084992A1 (en) * 1988-06-13 2006-04-20 Michelson Gary K Tubular member having a passage and opposed bone contacting extensions
US20060149390A1 (en) * 2003-03-31 2006-07-06 Long Jack F Punch, implant and associated method
US7291149B1 (en) 1995-06-07 2007-11-06 Warsaw Orthopedic, Inc. Method for inserting interbody spinal fusion implants
US20070282345A1 (en) * 2006-06-01 2007-12-06 Yedlicka Joseph W Cavity creation device and methods of use
US20080065226A1 (en) * 2003-03-31 2008-03-13 Depuy Products, Inc. Prosthetic implant, trial and associated method
US20090192622A1 (en) * 2003-03-31 2009-07-30 Depuy Products, Inc. Extended Articulation Orthopaedic Implant
US20090254188A1 (en) * 2003-03-31 2009-10-08 Maroney Brian J Articulating Surface Replacement Prosthesis
US20100049260A1 (en) * 2003-03-31 2010-02-25 Depuy Products, Inc. Extended articulation orthopaedic implant
US8465491B2 (en) * 2006-06-01 2013-06-18 Osteo Innovations Llc Bone drill
US20140046380A1 (en) * 2012-08-09 2014-02-13 Wilson Theophilo Asfora Joint fusion
US8784429B2 (en) 2011-01-11 2014-07-22 Jason A. Bryan Distance indicator
US9572589B2 (en) 2012-07-10 2017-02-21 Stryker European Holdings I, Llc Drill guide
USD847994S1 (en) 2017-10-31 2019-05-07 Sicage Llc Bone screw

Cited By (119)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3892232A (en) * 1973-09-24 1975-07-01 Alonzo J Neufeld Method and apparatus for performing percutaneous bone surgery
US4620539A (en) * 1983-07-11 1986-11-04 Andrews E Trent Pistol grip, bone drill
US7722619B2 (en) 1988-06-13 2010-05-25 Warsaw Orthopedic, Inc. Method of maintaining distraction of a spinal disc space
US7288093B2 (en) 1988-06-13 2007-10-30 Warsaw Orthopedic, Inc. Spinal fusion implant having a curved end
US6210412B1 (en) 1988-06-13 2001-04-03 Gary Karlin Michelson Method for inserting frusto-conical interbody spinal fusion implants
US8251997B2 (en) 1988-06-13 2012-08-28 Warsaw Orthopedic, Inc. Method for inserting an artificial implant between two adjacent vertebrae along a coronal plane
US6123705A (en) * 1988-06-13 2000-09-26 Sdgi Holdings, Inc. Interbody spinal fusion implants
US5741253A (en) * 1988-06-13 1998-04-21 Michelson; Gary Karlin Method for inserting spinal implants
US5772661A (en) * 1988-06-13 1998-06-30 Michelson; Gary Karlin Methods and instrumentation for the surgical correction of human thoracic and lumbar spinal disease from the antero-lateral aspect of the spine
US5797909A (en) * 1988-06-13 1998-08-25 Michelson; Gary Karlin Apparatus for inserting spinal implants
US6096038A (en) * 1988-06-13 2000-08-01 Michelson; Gary Karlin Apparatus for inserting spinal implants
US6120502A (en) * 1988-06-13 2000-09-19 Michelson; Gary Karlin Apparatus and method for the delivery of electrical current for interbody spinal arthrodesis
US7115128B2 (en) 1988-06-13 2006-10-03 Sdgi Holdings, Inc. Method for forming through a guard an implantation space in the human spine
US6149650A (en) * 1988-06-13 2000-11-21 Michelson; Gary Karlin Threaded spinal implant
US7452359B1 (en) 1988-06-13 2008-11-18 Warsaw Orthopedic, Inc. Apparatus for inserting spinal implants
US8758344B2 (en) 1988-06-13 2014-06-24 Warsaw Orthopedic, Inc. Spinal implant and instruments
US6264656B1 (en) 1988-06-13 2001-07-24 Gary Karlin Michelson Threaded spinal implant
US6270498B1 (en) 1988-06-13 2001-08-07 Gary Karlin Michelson Apparatus for inserting spinal implants
US8734447B1 (en) 1988-06-13 2014-05-27 Warsaw Orthopedic, Inc. Apparatus and method of inserting spinal implants
US8353909B2 (en) 1988-06-13 2013-01-15 Warsaw Orthopedic, Inc. Surgical instrument for distracting a spinal disc space
US20060200138A1 (en) * 1988-06-13 2006-09-07 Sdgi Holdings, Inc. Surgical instrument for distracting a spinal disc space
US20030065394A1 (en) * 1988-06-13 2003-04-03 Karlin Technology, Inc. Spinal fusion implant having a curved end
US20030139816A1 (en) * 1988-06-13 2003-07-24 Karlin Technology, Inc. Threaded spinal implant for insertion between vertebral bodies
US8066705B2 (en) 1988-06-13 2011-11-29 Warsaw Orthopedic, Inc. Instrumentation for the endoscopic correction of spinal disease
US7491205B1 (en) 1988-06-13 2009-02-17 Warsaw Orthopedic, Inc. Instrumentation for the surgical correction of human thoracic and lumbar spinal disease from the lateral aspect of the spine
US20030158553A1 (en) * 1988-06-13 2003-08-21 Michelson Gary Karlin Instrumentation for the surgical correction of spinal disease
US20060084992A1 (en) * 1988-06-13 2006-04-20 Michelson Gary K Tubular member having a passage and opposed bone contacting extensions
US6770074B2 (en) 1988-06-13 2004-08-03 Gary Karlin Michelson Apparatus for use in inserting spinal implants
US6923810B1 (en) 1988-06-13 2005-08-02 Gary Karlin Michelson Frusto-conical interbody spinal fusion implants
US7569054B2 (en) 1988-06-13 2009-08-04 Warsaw Orthopedic, Inc. Tubular member having a passage and opposed bone contacting extensions
US20040078039A1 (en) * 1988-06-13 2004-04-22 Michelson Gary Karlin Method for forming through a guard an implantation space in the human spine
US7914530B2 (en) 1988-06-13 2011-03-29 Warsaw Orthopedic, Inc. Tissue dilator and method for performing a spinal procedure
US20040133277A1 (en) * 1988-06-13 2004-07-08 Michelson Gary Karlin Spinal implant for insertion between vertebral bodies
US7686805B2 (en) 1988-06-13 2010-03-30 Warsaw Orthopedic, Inc. Methods for distraction of a disc space
US20050065518A1 (en) * 1988-06-13 2005-03-24 Karlin Technology, Inc. Spinal fusion system including spinal fusion device and additional orthopedic hardware
US7534254B1 (en) 1988-06-13 2009-05-19 Warsaw Orthopedic, Inc. Threaded frusto-conical interbody spinal fusion implants
US5601559A (en) * 1988-10-24 1997-02-11 Cook Incorporated Intraosseous needle
US5431655A (en) * 1988-10-24 1995-07-11 Cook Incorporated Intraosseous needle
US5374269A (en) * 1990-01-31 1994-12-20 American Cyanamid Company Method and instruments for ACL reconstruction
US5441502A (en) * 1993-02-17 1995-08-15 Mitek Surgical Products, Inc. System and method for re-attaching soft tissue to bone
US20060142762A1 (en) * 1993-06-10 2006-06-29 Michelson Gary K Apparatus and method for sequential distraction
US7399303B2 (en) 1993-06-10 2008-07-15 Warsaw Orthopedic, Inc. Bone cutting device and method for use thereof
US20060036247A1 (en) * 1993-06-10 2006-02-16 Karlin Technology, Inc. Distractor for use in spinal surgery
US20060058793A1 (en) * 1993-06-10 2006-03-16 Karlin Technology, Inc. Distractor for use in spinal surgery
US7993347B1 (en) 1993-06-10 2011-08-09 Warsaw Orthopedic, Inc. Guard for use in performing human interbody spinal surgery
US20040068259A1 (en) * 1993-06-10 2004-04-08 Karlin Technology, Inc. Distractor for use in spinal surgery
US20030153916A1 (en) * 1993-06-10 2003-08-14 Sofamor Danek Holdings, Inc. Method of inserting spinal implants with the use of imaging
US20020198532A1 (en) * 1993-06-10 2002-12-26 Sofamor Danek Holdings, Inc. Apparatus and method of inserting spinal implants
US7326214B2 (en) 1993-06-10 2008-02-05 Warsaw Orthopedic, Inc. Bone cutting device having a cutting edge with a non-extending center
US20040073217A1 (en) * 1993-06-10 2004-04-15 Karlin Technology, Inc. Osteogenic packing device and method
US7264622B2 (en) 1993-06-10 2007-09-04 Warsaw Orthopedic, Inc. System for radial bone displacement
US20040034358A1 (en) * 1993-06-10 2004-02-19 Sofamor Danek Holdings, Inc. Bone cutting device and method for use thereof
US6875213B2 (en) 1993-06-10 2005-04-05 Sdgi Holdings, Inc. Method of inserting spinal implants with the use of imaging
US7887565B2 (en) 1993-06-10 2011-02-15 Warsaw Orthopedic, Inc. Apparatus and method for sequential distraction
US20080287955A1 (en) * 1993-06-10 2008-11-20 Karlin Technology, Inc. Distractor for use in spinal surgery and method of use thereof
US6605089B1 (en) 1994-05-27 2003-08-12 Gary Karlin Michelson Apparatus and method for the delivery of electrical current for interbody spinal arthrodesis
US20090088857A1 (en) * 1994-05-27 2009-04-02 Gary Karlin Michelson Implant for the delivery of electrical current to promote bone growth between adjacent bone masses
US8206387B2 (en) 1994-05-27 2012-06-26 Michelson Gary K Interbody spinal implant inductively coupled to an external power supply
US20040024400A1 (en) * 1994-05-27 2004-02-05 Michelson Gary Karlin Method for the delivery of electrical current to promote bone growth between adjacent bone masses
US7935116B2 (en) 1994-05-27 2011-05-03 Gary Karlin Michelson Implant for the delivery of electrical current to promote bone growth between adjacent bone masses
US7455672B2 (en) 1994-05-27 2008-11-25 Gary Karlin Michelson Method for the delivery of electrical current to promote bone growth between adjacent bone masses
US5569290A (en) * 1995-01-30 1996-10-29 Paul C. McAfee Method of and apparatus for laparoscopic or endoscopic spinal surgery using an unsealed anteriorly inserted transparent trochar
US20020138144A1 (en) * 1995-02-17 2002-09-26 Michelson Gary Karlin Threaded frusto-conical interbody spinal fusion implants
US6758849B1 (en) 1995-02-17 2004-07-06 Sdgi Holdings, Inc. Interbody spinal fusion implants
US6224595B1 (en) 1995-02-17 2001-05-01 Sofamor Danek Holdings, Inc. Method for inserting a spinal implant
US7207991B2 (en) 1995-02-27 2007-04-24 Warsaw Orthopedic, Inc. Method for the endoscopic correction of spinal disease
US20020091390A1 (en) * 1995-02-27 2002-07-11 Michelson Gary Karlin Methods and instrumentation for the surgical correction of human thoracic and lumbar spinal disease from the lateral aspect of the spine
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