|Publication number||US3596656 A|
|Publication date||3 Aug 1971|
|Filing date||21 Jan 1969|
|Priority date||21 Jan 1969|
|Publication number||US 3596656 A, US 3596656A, US-A-3596656, US3596656 A, US3596656A|
|Inventors||Bernd B Kaute|
|Original Assignee||Bernd B Kaute|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (4), Referenced by (128), Classifications (16)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent  lnventor Bernd B. Kent:
87 Prinzegenten St., Berlin, 31, Germany  APPL No. 792,449  Filed Jan. 21. 1969 [45} Patented Aug. 3, 1971 [S4] FRACTURE FIXATION DEVICE 1 Claim, 6 Drawing Figs.
 US. Cl. 128/92, 85/50,151/38  Int. Cl A6lf5/04  Field of Search 128/92 A-G;85/50,1JP;151/35, 38; 287/189.36 F
 References Cited UNITED STATES PATENTS 2,621,653 12/1952 Briggs 128/92 x! is llIlI Primary Examiner-Richard A. Gaudet Assistant Examiner.l. Yasko A!!0rneyOltsch & Knoblock ABSTRACT: A device for use in the fixation of bone fractures including a metal plate having front and back faces and having at least one bore therethrough with a countersunk portion in the front face of said plate. The backfaee of said plate is adapted for positioning against the bone. A nonmetallic frustoeonical washer is seated in the countersunk portion of the plate bore. A metal pin is inserted through the washer and the plate bore. Said pin has a shank end part which is anchored into the bone and an enlarged head which engages the washer and which serves to hold the plate firmly against the bone.
PATENTEU Am: 3 Ian INVliNl'UR BER/VD a KAUTE 6M z W FRACTURE FIXATION DEVICE BACKGROUND OF THE INVENTION This invention relates to a device for use in the fixation of a fracture of the bone.
In reducing or repairing a fracture of the bone, it is customary to reinforce the area adjacent the fracture with a metal plate which is attached to the bone by means of pins which generally consist of metal nails or screws. In a fracture such as the fracture of the femoral neck a plate is secured to the shaft of the femur by screws and serves to anchor an elongated nail which is inserted into the head and neck portions of the femur. This plate and the anchoring screws must be of high strength to adequately support the bone load and also be resistant to the corrosive action of body fluids. It is customary, therefore, to form fixation plates and pins from corrosive-resistant metals such as stainless steel or a cobalt-chromium-molybdenum alloy. But even with this precaution some corrosion has been found to occur about the area of plate-pin contact after placement of the plate within the body.
The cause for this corrosive effect is not fully understood, but it is believed that the anticorrosive feature of the metal fonning the plate and pins is at least partially derived from a protective oxide film that is formed upon the exposed metal surfaces.
It is believed that during operative placement of the plate when the pins are caused to engage the plate to secure it to the bone the protective film upon the outer surfaces of the parts is scraped away at points of plate and pin contact thereby exposing the underrnetal of the parts to body fluids. Due to a lack of oxygen within the body around the operative area, the protective film is not reformed upon the metal surfaces at these points of plate-pin contact and the exposed undermetal is therefore continuously subjected to the corrosive action of body fluids. Additionally, it has been found that after the plate and pins are anchored into position and a load is placed upon the bone through its use, there is a tendency for the parts to minutely shift relative to each other. It is believed that this minute relative movement between plate and pin gradually wears away the thin protective film upon the parts until the undermetal of the parts is exposed to the corrosive action of the body fluids.
Another cause for the corrosion of plate and pins is believed to be the establishment of an electrolytic reaction between parts. On occasion, a plate formed of one metal is used with pins formed of a different metal. By placing these dissimilar metal parts within the body in the presence of body fluids, an electrolytic reaction is created between parts and causes their corrosion.
SUMMARY OF THE INVENTION This invention pertains to a device for reducing fractures.
and comprises a metal plate having front and back faces and having a bore therethrough which includes a countersunk portion in said front face of the plate. The backface of the plate is adapted for positioning against the bone. A nonmetal frustoconical washer is seated within the countersunk portion of the plate bore. A metal pin is inserted through thewasher and the plate bore. Said pin has a shank end part which is anchored into the bone and an enlarged head which engages the washer and servjes to hold or retain the plate firmly against the bone.
The washer which is inserted between the plate and the pinhead serves to prevent contact between the pin and the plate. The washer is formed of a material, such as a plastic, which does not scratch the outer surfaces of the pin and plate.
Any slight misalignment betweenthe pin and the axis of the bore of the plate is compensated for by the washer so as to provide firm engagement between the pin and the plate. Additionally, the washer serves as a dielectric between the pin and the plate and thereby permits the pin and the plate to be constructed from dissimilar metals without creating an electrolytic reaction between the parts.
Accordingly, it is an object of this invention to provide a device for use in the fixation of a fracture of the bone in which metal-to-metal contact between component parts of the device is prevented.
It is another object of this invention .to provide a device for use in the fixation of a fracture of the bone which includes a plate positionable against the bone adjacent the fractureand pins insertable through bores in said'plate for anchoring said plate to said bone and in which misalignment of a pin relative to a plate bore is compensated for by a deformable washer inserted between each pin and the plate.
It is a further object of this invention to provide a device for use in the fixation of a fracture of thebone which includes a metal plate positionable against the bone and metal pins insertable through bores in the plate to anchor the plate to the bone and in which the plateand the pins may be of dissimilar metals.
Other objects of this invention will become apparent upon a reading of the inventions description.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a vertical fragmentary sectional view of the upper end portion of the femur showing one embodiment of the fixation device of this invention secured thereto.
FIG. 2 is an enlarged detail sectional view taken along line 2-2 ofFIG. l.
FIG. 3 is a perspective view of the washer component of the fixation device illustrated in FIG. 1.
FIG. 4 is an enlarged fragmentary top plan view of the plate component of the fixation device illustrated in FIG. 1'.
FIG. 5 is a fragmentary sectional view of the plate component taken along line 5-5 of FIG. 4 with the washer component seated therein.
FIG. 6 is a fragmentary sectional view of the plate component of FIG. 4 with a washer component of modified form seated therein.
DESCRIPTION OF THEPREFERRED EMBODIMENTS The preferred embodiments illustrated are not intended to be exhaustive or to limit the invention to the precise forms disclosed. They are chosen and described in order to best explain theprinciples of the invention and its application and practical use to thereby enable others skilled in the art to best utilize the invention.
One embodiment of the fixation device of this invention is illustrated in FIGS. l'-5 and includes a bone plate 10, washers l2, and pins 14. Plate 10 is illustrated as being anchored or attached to the upper end portion of a femur 16 serving to reduce a fracture 18 in the neck 20 of the femur. It is to be understood that plate 10 may assume any number of specific shapes depending upon the type and location of the fracture and the purpose of the plate. Plate 10 has a backface 22 which is preferably formed to complementally engage a selected outer portion of the bone, which for purposes of illustration is the shaft 19 of femur 16, and a front fact 24. Plate 10 has a plurality of bores 28 which extend through faces 22 and 24. Each bore 28 includes a countersunk portion 30 which opens into front face 24 of the plate. Plate 10 is preferably constructed of stainless steel or a cobalt-chromium-molybdenum alloy and is highly polished.
A washer 12 having a frustoconical shape is complementally received within countersunk portion 30 of each plate bore 28. Each washer 12 includes an outer conical face 34 which has a taper similar to the taper of countersunk portion 30 of each bore and an inner conical face 36. Each washer 12 is preferably formed from a plastic material such as high density, high molecular weight polyethylene or a tetrafluoroethylene polymer. The large edge 40 of washer 12 is preferably flush with or projects slightly above from face 24 of plate 10 in use.
A pin 14 is inserted'through each bore 28 and includes a shank 44 which preferably projects with clearance through bore 28 and is anchored into bone 16 and an enlarged head 46 which is tapered to complementally engage-inner. face 36 of washer 12. Head 46 of each pin 14 is so sized relative to washer l2 and countersunk portion 30 of bore 28 that, with pin 14 anchored into femoral shaft 19 and serving to firmly hold plate against the femur, tip 48 of head 46 is preferably slightly inset from outer edge 40 of the washer l2. Pins 14 are preferably formed from the same material as plate 10 and may comprise screws, as illustrated, or nails. When screws are utilized as pins 14, the countersunk portion 30 of each bore 28 preferably is interrupted, as by at least one helical rib or groove 38 formed therein. Each groove or rib 38 preferably extends from front face 24 of the plate to inner margin 41 of countersunk portion 30 and extends from its large dimension end to its small dimension end in the same direction as the direction of rotation of the engaging screw to seat the screw. Rib or groove 38 serves to engage outer face 34 of the washer to prevent the washer from turning relative to plate 10 as the screw is tightened against the plate.
Another embodiment of the fixation device of this invention is illustrated in FIG. 6 wherein the heretofore described dielectric washer 12 is modified to include a coaxial straightsided tubular neck part 50 which extends from the inner part 52 of the frustoconical portion 54 of the washer. Neck part 50 terminates within bore 28 beyond the countersunk portion 30 and preferably terminates spaced from the backface 22 of the plate 10. Neck part 50 preferably has an outer diameter which is slightly smaller than the diameter of bore 28 and an inner diameter which is slightly larger than the diameter of the shank of a pin 14. Neck part 50 of the washer serves as a guide for pin 14 and as a dielectric between the plate and the shank part of the pin to eliminate any electrolytic reaction between plate and pin.
What 1 claim is:
l. A device for use in the fixation of the fracture of the bone comprising a metal plate having front and back faces and having a bore therethrough, said bore defined by a straight wall portion and a countersunk portion located at said plate front face, said plate backface adapted to be positioned against said bone, a nonmetallic washer having a frustoconical portion and a preformed substantially coaxial tubular neck portion, the frustoconical portion of said washer seating within the coun tersunk portion of said bore, the neck portion of said washer extending into the straight wall portion of said bore and terminating inwardly spaced from the back face of said plate, a metal pin having a shank and an enlarged head, said washer encircling said pin, said pin shank extending through said plate bore with clearance and adapted to be anchored into said bone, said pin head engaging the frustoconical portion of said washer and being separated from contact with said plate.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US2621653 *||29 Apr 1949||16 Dec 1952||Henry Briggs||Fracture reducing device|
|US2834998 *||25 Jan 1954||20 May 1958||Douglas Aircraft Co Inc||Means for mounting a frangible expanse to a vibratile support|
|US3171518 *||17 Jul 1959||2 Mar 1965||Erick W Bergmann||Construction for adjusting the relative position of screw connected parts|
|US3298270 *||12 Feb 1965||17 Jan 1967||Pierre Launay||Fixation device comprising a screw and a ring|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US4224699 *||23 May 1978||30 Sep 1980||Sulzer Brothers Limited||Cap-shaped endoprosthesis for a femoral head|
|US4227265 *||23 May 1978||14 Oct 1980||Sulzer Brothers Limited||Bone implant with plastic insert between elements of different mechanical properties|
|US4323015 *||31 Mar 1980||6 Apr 1982||Russell, Burdsall & Ward Corporation||Roller side bearing mounting system and method|
|US4338926 *||21 Nov 1980||13 Jul 1982||Howmedica, Inc.||Bone fracture prosthesis with controlled stiffness|
|US4369769 *||13 Jun 1980||25 Jan 1983||Edwards Charles C||Spinal fixation device and method|
|US4388921 *||22 May 1981||21 Jun 1983||Institut Straumann Ag||Device comprising a plate and screws for fastening a plate to a bone|
|US4393787 *||5 Apr 1982||19 Jul 1983||Russell, Burdsall & Ward Corporation||Roller side bearing mounting system and method|
|US4397307 *||22 Aug 1980||9 Aug 1983||Waldemar Link Gmbh & Co.||Cranial extension holder|
|US4642012 *||11 May 1984||10 Feb 1987||Illinois Tool Works Inc.||Fastening assembly for roofs of soft material|
|US4696290 *||31 Mar 1986||29 Sep 1987||Acromed Corporation||Apparatus for straightening spinal columns|
|US4856951 *||23 Jun 1986||15 Aug 1989||Illinois Tool Works, Inc.||Fastening assembly for roofs of soft materials|
|US4943292 *||8 Nov 1989||24 Jul 1990||National Research Council Of Canada||Plate for broken bone fixation|
|US4957496 *||13 Nov 1989||18 Sep 1990||Mecron Medizinische Produkte Gmbh||Slotted slide plate assembly for osteosynthesis|
|US4988351 *||6 Jan 1989||29 Jan 1991||Concept, Inc.||Washer for use with cancellous screw for attaching soft tissue to bone|
|US5041114 *||15 Aug 1988||20 Aug 1991||Pfizer Hospital Products Group, Inc.||Modular femoral fixation system|
|US5057111 *||4 Nov 1987||15 Oct 1991||Park Joon B||Non-stress-shielding bone fracture healing device|
|US5403315 *||13 May 1993||4 Apr 1995||Danek Medical, Inc.||Positionable spinal fixation device|
|US5484438 *||23 Nov 1994||16 Jan 1996||Pennig; Dietmar||Intramedullary nail with screw-receiving solid insert|
|US5484439 *||25 Apr 1994||16 Jan 1996||Alphatec Manufacturing, Inc.||Modular femur fixation device|
|US5486176 *||23 Feb 1994||23 Jan 1996||Smith & Nephew Richards, Inc.||Angled bone fixation apparatus|
|US5797912 *||19 Aug 1997||25 Aug 1998||Terray Corporation||Washer for use with a bone screw|
|US5976141 *||23 Feb 1995||2 Nov 1999||Synthes (U.S.A.)||Threaded insert for bone plate screw hole|
|US6004323 *||4 Feb 1997||21 Dec 1999||The University Of Iowa Research Foundation||Surgically implantable fastening system|
|US6096041 *||26 Jan 1999||1 Aug 2000||Scimed Life Systems, Inc.||Bone anchors for bone anchor implantation device|
|US6206881||6 Sep 1995||27 Mar 2001||Synthes (Usa)||Bone plate|
|US6264676||26 Jan 1999||24 Jul 2001||Scimed Life Systems, Inc.||Protective sheath for transvaginal anchor implantation devices|
|US6269716 *||18 Nov 1998||7 Aug 2001||Macropore, Inc.||High-torque resorbable screws|
|US6296645||9 Apr 1999||2 Oct 2001||Depuy Orthopaedics, Inc.||Intramedullary nail with non-metal spacers|
|US6319272||29 Mar 2000||20 Nov 2001||Boston Scientific Corporation||Transvaginal anchor implantation device and method of use|
|US6343531 *||25 Jun 2001||5 Feb 2002||Macropore, Inc.||High-torque resorbable screws|
|US6379360||8 Sep 2000||30 Apr 2002||Synthes (Usa)||Spiral blade insertion instrument|
|US6440154||12 Mar 2001||27 Aug 2002||Scimed Life Systems, Inc.||Protective sheath for transvaginal anchor implantation device|
|US6575975||4 May 2001||10 Jun 2003||Synthes (U.S.A.)||Bone fixation method|
|US6709436||22 May 2000||23 Mar 2004||Depuy Orthopaedics, Inc.||Non-metal spacers for intramedullary nail|
|US6783529||19 Oct 2001||31 Aug 2004||Depuy Orthopaedics, Inc.||Non-metal inserts for bone support assembly|
|US6786908||2 Aug 2001||7 Sep 2004||Depuy Orthopaedics, Inc.||Bone fracture support implant with non-metal spacers|
|US6808527||25 Mar 2002||26 Oct 2004||Depuy Orthopaedics, Inc.||Intramedullary nail with snap-in window insert|
|US6936052||7 Mar 2002||30 Aug 2005||Boston Scientific Scimed, Inc.||System for implanting an implant and method thereof|
|US6939355||26 May 2000||6 Sep 2005||Boston Scientific Scimed, Inc.||Bone anchors for bone anchor implantation device|
|US6991597||7 Mar 2002||31 Jan 2006||Boston Scientific Scimed, Inc.||System for implanting an implant and method thereof|
|US7025772||7 Mar 2002||11 Apr 2006||Scimed Life Systems, Inc.||System for implanting an implant and method thereof|
|US7070377 *||5 Aug 2004||4 Jul 2006||General Motors Corporation||Grommet bridge assembly|
|US7131973||16 May 2002||7 Nov 2006||Boston Scientific Scimed, Inc.||Bone anchor implantation device|
|US7204837||24 Jul 2003||17 Apr 2007||Paul Kamaljit S||Spinal plate assembly|
|US7235043||7 Mar 2002||26 Jun 2007||Boston Scientific Scimed Inc.||System for implanting an implant and method thereof|
|US7255699||24 Jul 2003||14 Aug 2007||Paul Kamaljit S||Spinal plate assembly|
|US7290347||31 Mar 2006||6 Nov 2007||Archus Orthopedics, Inc.||Facet joint prosthesis measurement and implant tools|
|US7361138||31 Jul 2003||22 Apr 2008||Scimed Life Systems, Inc.||Bioabsorbable casing for surgical sling assembly|
|US7402133||14 Aug 2003||22 Jul 2008||Boston Scientific Scimed, Inc.||Spacer for sling delivery system|
|US7406775||26 Sep 2005||5 Aug 2008||Archus Orthopedics, Inc.||Implantable orthopedic device component selection instrument and methods|
|US7410488||18 Feb 2005||12 Aug 2008||Smith & Nephew, Inc.||Hindfoot nail|
|US7416553||9 Apr 2003||26 Aug 2008||Depuy Acromed, Inc.||Drill guide and plate inserter|
|US7608104||25 Oct 2004||27 Oct 2009||Archus Orthopedics, Inc.||Prostheses, tools and methods for replacement of natural facet joints with artifical facet joint surfaces|
|US7608106||3 Jan 2006||27 Oct 2009||Archus Orthopedics, Inc.||Facet arthroplasty devices and methods|
|US7655009||30 Nov 2004||2 Feb 2010||Smith & Nephew, Inc.||Humeral nail|
|US7655029||26 Nov 2003||2 Feb 2010||Synthes Usa, Llc||Bone plate|
|US7674269||13 Feb 2006||9 Mar 2010||Boston Scientific Scimed, Inc.||Bone anchor implantation device|
|US7674293||9 Mar 2010||Facet Solutions, Inc.||Crossbar spinal prosthesis having a modular design and related implantation methods|
|US7678153 *||4 May 2004||16 Mar 2010||Biopro, Inc.||Subtalar implant|
|US7691145||25 Oct 2004||6 Apr 2010||Facet Solutions, Inc.||Prostheses, systems and methods for replacement of natural facet joints with artificial facet joint surfaces|
|US7740649||26 Oct 2004||22 Jun 2010||Pioneer Surgical Technology, Inc.||Bone plate system and methods|
|US7776047||11 Feb 2004||17 Aug 2010||Depuy Spine, Inc.||Guide for spinal tools, implants, and devices|
|US7794482||20 Aug 2007||14 Sep 2010||Synthes Usa, Llc||Device for osteosynthesis|
|US7824326||29 Feb 2008||2 Nov 2010||Boston Scientific Scimed, Inc.||Bioabsorbable casing for surgical sling assembly|
|US7828015||28 Jun 2007||9 Nov 2010||Albrecht David E||Adapter plate for fastening and locking of components|
|US7866931 *||12 Jan 2007||11 Jan 2011||James Murtha||Preset depth adapter and finger guard for screws and nails when installing sheetrock|
|US7891379||28 Jun 2007||22 Feb 2011||Albrecht David E||Mechanical fastening and locking of structural, fluid, and electrical components and systems|
|US7909829||27 Jun 2003||22 Mar 2011||Depuy Spine, Inc.||Tissue retractor and drill guide|
|US7909848||11 Feb 2004||22 Mar 2011||Depuy Spine, Inc.||Tissue retractor and guide device|
|US7909859||26 Oct 2005||22 Mar 2011||Pioneer Surgical Technology, Inc.||Bone plate system and methods|
|US7914556||20 Dec 2006||29 Mar 2011||Gmedelaware 2 Llc||Arthroplasty revision system and method|
|US7935123||17 Sep 2003||3 May 2011||Depuy Acromed, Inc.||Drill guide with alignment feature|
|US8033983||14 Aug 2003||11 Oct 2011||Boston Scientific Scimed, Inc.||Medical implant|
|US8066740||21 Oct 2005||29 Nov 2011||Gmedelaware 2 Llc||Facet joint prostheses|
|US8066771||9 Sep 2003||29 Nov 2011||Gmedelaware 2 Llc||Facet arthroplasty devices and methods|
|US8070811||9 Sep 2003||6 Dec 2011||Gmedelaware 2 Llc||Facet arthroplasty devices and methods|
|US8092532||9 Sep 2003||10 Jan 2012||Gmedelaware 2 Llc||Facet arthroplasty devices and methods|
|US8142485||10 Jun 2008||27 Mar 2012||Stryker Trauma Sa||Bone connection device|
|US8162816||7 Mar 2002||24 Apr 2012||Boston Scientific Scimed, Inc.||System for implanting an implant and method thereof|
|US8163017||9 Jul 2003||24 Apr 2012||Gmedelaware 2 Llc||Facet arthroplasty devices and methods|
|US8172885||5 Feb 2004||8 May 2012||Pioneer Surgical Technology, Inc.||Bone plate system|
|US8187303||22 Apr 2004||29 May 2012||Gmedelaware 2 Llc||Anti-rotation fixation element for spinal prostheses|
|US8221461||24 Oct 2005||17 Jul 2012||Gmedelaware 2 Llc||Crossbar spinal prosthesis having a modular design and systems for treating spinal pathologies|
|US8221476||13 Apr 2007||17 Jul 2012||Paul Kamaljit S||Spinal plate assembly|
|US8231655||28 Jul 2006||31 Jul 2012||Gmedelaware 2 Llc||Prostheses and methods for replacement of natural facet joints with artificial facet joint surfaces|
|US8236033||13 Aug 2007||7 Aug 2012||Paul Kamaljit S||Spinal plate assembly|
|US8361126||27 Aug 2008||29 Jan 2013||Pioneer Surgical Technology, Inc.||Bone plate system|
|US8388666||27 Sep 2007||5 Mar 2013||Biomet C.V.||Locking screw system with relatively hard spiked polyaxial bushing|
|US8394107||16 Jul 2010||12 Mar 2013||Depuy Spine, Inc.||Guide for spinal tools, implants, and devices|
|US8398681||17 Aug 2005||19 Mar 2013||Gmedelaware 2 Llc||Adjacent level facet arthroplasty devices, spine stabilization systems, and methods|
|US8403006 *||8 Nov 2010||26 Mar 2013||David E. Albrecht||Kit for fastening and locking of components|
|US8409254||27 Jun 2008||2 Apr 2013||Gmedelaware 2 Llc||Prostheses, tools and methods for replacement of natural facet joints with artificial facet joint surfaces|
|US8425557||23 Apr 2013||Gmedelaware 2 Llc||Crossbar spinal prosthesis having a modular design and related implantation methods|
|US8491635||30 Nov 2007||23 Jul 2013||Gmedelaware 2 Llc||Crossbar spinal prosthesis having a modular design and related implantation methods|
|US8496686||7 May 2007||30 Jul 2013||Gmedelaware 2 Llc||Minimally invasive spine restoration systems, devices, methods and kits|
|US8496687||14 Dec 2007||30 Jul 2013||Gmedelaware 2 Llc||Crossbar spinal prosthesis having a modular design and related implantation methods|
|US8523907||3 Jan 2006||3 Sep 2013||Gmedelaware 2 Llc||Prostheses, tools and methods for replacement of natural facet joints with artificial facet joint surfaces|
|US8617048||7 Mar 2002||31 Dec 2013||Boston Scientific Scimed, Inc.||System for implanting an implant and method thereof|
|US8623019||3 Jul 2008||7 Jan 2014||Pioneer Surgical Technology, Inc.||Bone plate system|
|US8632453||15 Jul 2008||21 Jan 2014||Boston Scientific Scimed, Inc.||Spacer for sling delivery system|
|US8652183||7 Jul 2010||18 Feb 2014||Mari S Truman||Multi-angle orthopedic expansion head fastener|
|US8675930||5 Aug 2008||18 Mar 2014||Gmedelaware 2 Llc||Implantable orthopedic device component selection instrument and methods|
|US8702755||10 Aug 2007||22 Apr 2014||Gmedelaware 2 Llc||Angled washer polyaxial connection for dynamic spine prosthesis|
|US8900277||22 Mar 2011||2 Dec 2014||Pioneer Surgical Technology, Inc.||Bone plate system|
|US8951291 *||27 May 2010||10 Feb 2015||Biotech International||Self-locking osteosynthesis device|
|US9056016||28 Mar 2008||16 Jun 2015||Gmedelaware 2 Llc||Polyaxial adjustment of facet joint prostheses|
|US9101426||11 Oct 2012||11 Aug 2015||Stryker Trauma Sa||Cable plug|
|US20040204712 *||17 Sep 2003||14 Oct 2004||Eric Kolb||Bone fixation plates|
|US20040267274 *||27 Jun 2003||30 Dec 2004||Tushar Patel||Tissue retractor and drill guide|
|US20050059970 *||17 Sep 2003||17 Mar 2005||Eric Kolb||Bone fixation systems|
|US20050251264 *||4 May 2004||10 Nov 2005||Biopro. Inc.||Subtalar implant|
|US20060029486 *||5 Aug 2004||9 Feb 2006||Fonville Carl E||Grommet bridge assembly|
|US20060041315 *||7 Oct 2005||23 Feb 2006||Biopro, Inc.||Subtalar implant|
|US20060100709 *||3 Jan 2006||11 May 2006||Reiley Mark A||Facet arthroplasty devices and methods|
|US20060103230 *||18 Nov 2004||18 May 2006||Hung-Chuan Wu||Washer for fitting a pitch center diameter of vehicle elements|
|US20060116678 *||8 Oct 2003||1 Jun 2006||Biotech International (Sarl)||Self-locking osteosynthesis device|
|US20090248087 *||26 Feb 2009||1 Oct 2009||Orthohelix Surgical Designs, Inc.||Variable axis locking mechanism for use in orthopedic implants|
|US20110048983 *||8 Nov 2010||3 Mar 2011||Albrecht David E||Kit for Fastening and Locking of Components|
|USRE44501||12 Aug 2010||17 Sep 2013||Smith & Nephew, Inc.||Hindfoot nail|
|EP0165666A1 *||9 Apr 1985||27 Dec 1985||George Papagiannopoulos||Intramedullary splint|
|EP0337288A1 *||6 Apr 1989||18 Oct 1989||Egisto Armillei||Device for reducing and fixing fractures of the hip joint|
|EP0530585A2 *||18 Aug 1992||10 Mar 1993||Synthes AG, Chur||Self-locking resorbable screws and plates for internal fixation of bone fractures and tendon-to-bone attachment|
|EP2254493A2 *||2 Mar 2009||1 Dec 2010||Orthohelix Surgical Designs, Inc.||Variable axis locking mechanism for use in orthopedic implants|
|EP2254493A4 *||2 Mar 2009||19 Dec 2012||Orthohelix Surgical Des Inc||Variable axis locking mechanism for use in orthopedic implants|
|WO1981002917A1 *||30 Mar 1981||15 Oct 1981||Lamson & Sessions Co||Roller side bearing mounting system and method|
|WO1992014426A1 *||20 Feb 1992||3 Sep 1992||Danek Medical Inc||Improved external fixation frame assembly|
|WO1997009000A1 *||6 Sep 1995||13 Mar 1997||Robert Frigg||Bone plate|
|WO2006019786A1 *||13 Jul 2005||23 Feb 2006||Murtha James||Preset depth adapter and finger guard for screws and nails when installing sheetrock|
|U.S. Classification||606/65, 411/531, 411/544, 411/960, 411/908, 606/67|
|International Classification||A61B17/80, A61B17/74, A61B17/86|
|Cooperative Classification||A61B17/8047, A61B17/746, Y10S411/96, A61B17/8695, Y10S411/908|
|European Classification||A61B17/74D4, A61B17/80D6|