|Publication number||US3846846 A|
|Publication date||Nov 12, 1974|
|Filing date||Sep 26, 1973|
|Priority date||Sep 28, 1972|
|Also published as||DE2247560B1, DE2247560C2, DE7235643U|
|Publication number||US 3846846 A, US 3846846A, US-A-3846846, US3846846 A, US3846846A|
|Original Assignee||Fischer Artur|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (6), Referenced by (171), Classifications (27)|
|External Links: USPTO, USPTO Assignment, Espacenet|
[111 3,846,846 [451 Nov. 12,1974
United States` Patent [1914 Fischer 12S/92 BC Benjamin.,.,...,.............. Hermg 2 714 749 2/1956 2,998,007 8/ l 961 3.283.640 ll/l966 9, 2 .m s rl e .m e h n s A, a E h mm w mm A T .Nl Om Jm wv Hm MM 5..7L
D-724l Tumlngen, Germany sept.26, 1973 Primary Examiner-Richard A. Gaudet Assistant Examiner-J. Yusko  Filed:
Appl NO': 401103 Attorney, Agent, or Firm-Michael S. Strikcr HIP JOINT PitosTHEsls` Background rof the Invention The present invention relates generally to a surgical prosthesis, and more particularly to a hip joint prosthesis.
There are instances where a hip joint prosthesis is required, for instance in the event of destruction of the ball ofthe hip joint which may be the result of arthrosis. Hip joints for this purpose are already known. The problem with the prior-art constructions is primarily e the manner in which they must be anchored in the femur. Most commonly used heretofore has been a method involving the cementing of a portion of the artificial hip joint into the channel of the femur. lt is known to use a special cement for, this purpose," namely methylmentharcrylate.Unfortunately, when this cement hardens after having been applied, it tends to develop a not inconsderable amount of heat. This, in turn, can be dangerous in the particular area in which a hip joint prosthesis-which is, after all, the articulation betwe1. th9 femur and the .iiuwminate bene must be installed and which could lead to damage to the bone substance and to adjacent tissue. For this reason, special complicated measures must be taken by the surgeon to cool and thus protect the bone substance and the adjacent tissue during the liberation of heat resulting from hardening of the aforementioned cement. t
This is evidently highly undesirable, and a further disadvantage is added to this prior-art approach, namely An additional object of the invention is to provide such a hip joint prosthesis which affords a uniform pressure distribution upon the femur, so as to protect the bone material as much as possible against damage and to prevent shifting of the prosthesis into the bone under simultaneous destruction of the bone substance.
ln keeping with the above objects and with others which will become apparent hereafter, one feature of the invention resides in a hip joint prosthesis, which,
brief'ly stated, comprises first means including a ball' shaped portion which is to form part of the hip joint, and a second portion which is to `be inserted into the human femur and extends from the first portion. Second means is provided for anchoring the second portion in the femur, and this second means comprises an elongated expander rod insertable through the second l portion and into the femur longitudinally thereof, a row the fact that the constant stresses to whichthe artificial hip joint will be exposed after installation, lead to a loosening of the cemented-in portion of the joint-and v to a constant if slow sliding of the joint deeper into the femur. The prior art has attempted to avoid this, or at least to reduce it, by providing at the junction of the ballshaped portion of the prosthesis and of the portion which is inserted into the channel of the femur an abutment surface which provides anabutment for the prosthesis against the corticalis of the femur. However, in the long run this also is not sufficient to prevent the undesired shifting of the prosthesis with reference to the femur, so that over a period of timek the bone becomes damaged. Of course, when this takes place, the prosthesis becomes unuseable. Aside from the fact that this would at the very least involve a further operation to insert another prosthesis, there exists the danger that the femur may have become damaged to such an extent that it is incapable of supporting another prosthesis.
SUMMARY OF THE INVENTION lt is, accordingly, a general objectof the present invention to overcome the disadvantages of the prior art.
More particularly, it is an object of the present invention to provide animproved hip joint prosthesis which avoids the aforementioned disadvantages. 'e
Still more particularly, it is an object of the invention to provide such an improved hip joint prosthesis which can be readily inserted and anchored in the femur without any difficulties. l
Another object of the invention is to provide such a hip joint prosthesis which can also be readily removed, for instance in the event of infection.
of tubular expansion elements each surrounding the rod and being angularly displaceable with reference to the longitudinal-axis of the same, and actuating means for effecting axial movement of the rod with reference to the row and for thereby causing expansion of the expansion elements into anchoring contact with the. fe-
The axially successive expansion elements of the row of such elements cooperate with one another, so that each of them expands on axially adjacent one, with the leading element of the row becoming expanded by an expander portion which is provided at the leading end of the expander rod and which is drawn into the leading element. The number of elements in the row can of V.course be selected at will, for instance in dependence upon the size and/or weight of the patient on whom the operation is to be performed, or upon other factors such as the activities to be performed by the patient. lt might be conceivable to use a single expansion element instead of 'a row of them. However, in such case, the entire outwardly directed force resulting from expansion of the expansion elements and which acts upon the surrounding bone material, would all be concentrated upon a very small area of the bone and would very likely crack the bone. With the arrangement according to the present invention, however, the pressures resulting from expansion are distributed over several areas of the bone which ar-e spaced from one another, so that no particular area is subjected to unduly high pressure and cracking of the bone need not be feared. Moreover, the tubular expansion elements can be permitted to become angularly displaced with reference to the longitudinal axis of the expander rod, so that they can more readily adapt themselves to the contour of the bone channel, that is the channel in the femurwhich, as is well known, is av hollow bone. The channel is usually somewhat curved, and this also militates against the use of a single and rather long expansion element, so that the insertion of a row of shorter expansion elements is much simpler and in many instances is the only manner in which such elements can be inserted at all. The outer diameter of the expansion elements in the unexpanded condition thereof, may` but need not-be so selected as to correspond to the inner diameter of the channel in the bone. Even if this is not the case and the channel is rather large in its diameter as compared to the tubular expansion elements, a reliable anchoring is still obtainable because the indi- 3 vidual elements can thenengage the inner wall bounding the channel, in zig-zag fashion.
When the individual expansion elements are expanded, they each form with respect to the axially pre-` ceding element a step at which they dig into the wall of the bone. These various steps in conjunction with the frictional engagement of the elements against the bone wall, prevent the undesired lowering of the prosthesis into the bone that is the gradual sliding of the prosthesis axially of thefbone with the resultant destruction of the material of the bone. This means that the position of the prosthesis with reference to the femur remains the same, even over a prolonged periodof time and under constant stress. lf the individual expansion elements are so turned with reference to one another, that is angularly offset relative to one another, that their axially extending slots which are provided to facilitate expansion are offset through90 from element to element, the formation of the steps and the distribution of the pressure can be further improved.
The novel features which are considered as characteristic for the invention are set forth in particular in the appended claims.
The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWING FIG. l is an axial section through the upper portion of a human femur, showing a hip joint prosthesis ac.
cording to the present invention anchored in the bone; and
FIG` 2 is a fragmentary axial sectional detail view, showing the leading one of the expansion elements of FIG. 1 in expanded condition.
DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now tothe specific embodiment illustrated in FIGS. l and 2, it will be seen that reference character F designates the femur, that is the tubular bone in which the novel prosthesis is to be anchored. The prosthesis is designated in toto with reference numeral l The trailing end of the element 9b is in turn drawn into the leading end of the next adjacent element 9 which is expanded as a result of this, and this continues from element to element until finally the trailing element 9a is also expanded. j
Each of the elements 9, 9a and 9b is provided with at least one axially extending slot l0 extending from its respective leading towards its trailing end to facilitate the desired expansion. The number and axial length of these slots l0 depend upon the hardness and resistance of the material to spreading of the elements 9, 9a and 9b. If, for instance, titanium is used, which is a material that is widely favored for such surgical insertions but is difficult to work, the simplicity of configuration of the expansion elements and consequently, the simplicity of the manufacture of them, is advantageous. The extent to which the elements 9, 9a and 9b can be angularly displaced with reference to the longitudinal axis of the rod 7 depends upon the difference of the diameter of their central passage ll on the one hand, and the outer diameter of the rod7 on the other hand. Alarge difference provides for a significant angular displaceability and a small difference for a lesser displaceability. The
and has a ball-shaped portion which is to form part of the hip-joint, and a second portion which is to be inserted into the femur F as shown, and which extends from the firstl portion at an angle thereto. The portion 4 is provided with a bore as illustrated, and it has an end face which faces outwardly away from the femur F, and against which the head of a hollow cap nut 6 abuts, the cap nut 6 constituting the actuating means which meshes with external screw'threads on the trailing end of an expander rod 7 to thereby draw the rod outwardly, that is upwardly in FIG. l, to effect expansion of the expansion elements. The leading end of the rod is provided with an expander portion 8 of the illustrated configuration (compare FIGS. 1 and 2).
The rod is surrounded by a row of tubular expansion elements, including a trailing expansion element 9a, a leading expansion element 9a which is located adjacent the expander portion 8, and intermediate expansion elements 9. When the rod 7 is drawn upwardly in FIG. l by requisite turning of the nut 6, the'expander portion 8 is drawn into the element 9b, expanding the same.
particular relationship will be selected by the surgeon in dependence upon the diameter and the curvature of the channel in the femur.
The passages l1 through which the rod 7 extends conically diverge in the direction towards the respective leading end, thatis downwardly in FIG. 1 and in FIG. 2, so that the trailing end of each axially following expansion element can enter into the passage of each preceding element. The trailing ends, incidentally, are part-spherical `in'configuration as indicated by reference numeral 12, to facilitate their introduction into the passages 11, and to reduce the force which is applied to be exerted for spreading'purposes by the rod 7. Furthermore, this also facilitates the angular displacement ofthe expansion elements with reference to the longitudinal axis of the rod 7.
When the rod 7 is drawn upwardly in FIG. 1 by turning of the `nut 6, the elements 9 can accommodate themselves to the curvature of the passage in the femur F by angularly shifting about the longitudinal axis of the rod 7. This means that if the width of the bone passage is greater than the expansion capability of the elements 9, the latter can assume a zig-zag shaped configuration' in that alternated ones of them become inclined to opposite sides of the rod 7. In this manner, the arrangement can still be reliably anchored due to the wedging action resulting from such inclination, in which the opposite axial ends of the respective elements 9 become wedged against the bone at opposite sides of the passage.
lf the channel 14 in the femur F is curved to a substantial extent, a further improvement in the accommodation of the elements 9, 9a and 9b to this curvature can be achieved by making the rod 7 itself curved, in accommodation vto the curvature of the channel 14. As a general rule, all channels in the various femurs are curved lto a greater or lesser extent; it is very rare that a completely straight channel is encountered. Curving the rod 7 has the advantage not only of facilitating the introduction of the rod and of the elements 9, 9a, 9b into the channel 14, but also if the latter is curved signifcantly, the angular displaceability of the expansion elements about the longitudinal axis of the rod 7 is in some circumstances no longer sufficient to compensate for this curvature.
If the rod 7 is itself curved, then the nut 5 is used so that therod 7 need not be turned. It will be appreciated that if the rod 7 is straight or curved only to a very slight extent, it will be possible to eliminate the nut 6 and instead to merely provide the outer end portion of the rod 7 itself with a head having a slot or the like, by means of which the rod could be turned due to engagement with an appropriate tool. It would then be this head that would bear against the outer surface of the portion 4. In that case, it will be appreciated that the portion 8 would not be of one piece with the rod 7, but instead the rod 7 would have to be threaded into the portion 8 and, as the rod 7 would be turned, the portion 8 would be drawn into the leading expansion element 9b, in the manner described earlier.
If, however, the nut 6 is used, then the portion 8 can be of one piece with the rod 7. In such an instance, which is illustrated in FIGS. 1 and 2, the axial length of the nut 6 is somewhat greater than the distance through which the nut 6 must be drawn outwardly (upwardly in FIG. 1) to effect complete expansion of all of the expansion elements 9, 9a, and 9b. This assures that the outer end of the rod 7, will be located within the central passage of the nut 6 at all times, and that the possiblity of a development of a painful pressure point resulting from engagement of an outwardly extending end portion of the rod with the surrounding tissue is avoided.
The cross section of the portion 4 corresponds at least approximately to the form of the channel 14 at the upper end of the femur F, which cross sectional conguration is usually somewhat elliptical. Also, the trailing expansion element 9a is configurated to accommodate itself to the conically converging contour of the channel 14. This facilitates the support and anchoring of the element 9a in the channel 14. The trailing end of the element 9a is provided with a recess 15 into which the adjacent end portion of the portion 4 extends, to prevent relative turning of the element 9a with reference to the portion 4.
The portion 4 extends at an angle of approximately 120 with reference to the axis of the base part on which the ball-shaped portion 2 is provided and this angle corresponds approximately to the natural angle of the hip joint. A spring washer or the like can be used intermediate the outerwardly directed surface of the portion 4 and ahead of the rod 7, or, as in the illustrated embodiment, the head of the nut 6, to fix them in place against undesired turning. Such spring washers serve, incidentally, also to compensate for the effect of pulling forces acting upon the rod 7 and provide a certain amount of elastic yieldability when a load is placed upon the hip joint prosthesis.
FIG. 2 shows the leading expansion element 9b in axial section. It will be seen that it has the portion 8 is drawn into the passage 11 of the element 9b, the latter is spread apart, Le. expanded, which ismade possible by the provision of the slot 10. At the same time, the trailing end 12 of the element 9b is drawn into the passage ll of the axially adjacent element 9, thereby expanding the latter. As 4this takes place for all of the elements 9, 9a, and 9b, adjacent elements form steps with one another, which steps are identified with reference numeral 16. At these steps the elements bite into the bone material surrounding the channel 14 and this in combination with the frictional engagement of the outer surfaces of the elements 9, 9a and 9b with the surrounding bone material provides for a reliable anchoring and prevents the sliding with reference to the femur, which, as outlined earlier can lead to the destruction of the bone material.
Undesired relative turning between the rod 7 and the element 9 can be prevented by making the crosssection of the rod 7 and of the passages 11 non-circular and mating, without, however, thereby interfering with the desired angular displaceability of the elements 9. ln the illustrated embodiment a spring portion 17 is provided on the rod 7 which engages the corresponding groove 18 of the element 9, as shown in FIG. 2. However, a simple use of a non-circular mating crosssection, for instance quadratic or the like, can suffice also.
Finally, it is also possible to roughen the outer surfaces ofthe elements 9, 9a and 9b for instance by knurling them or by providing fluting or the like to increase the friction betweem them and the bone material of the femur F and to thereby improve the anchoring effect.
It will be understood that each of the elements described above, or two or more together, may also find a useful application of other types of constructions differing from the types described above.
While the invention has been illustrated and described as embodied in a hip joint prosthesis, it is not intended to be limited to the details shown, since various modifications and structural changes may be made without departing in any way from the spirit of the present invention.
Without further analysis, the foregoing will so fullyv reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention and, therefore, such adaptations should and are intended to be comprehended within the meaning and range of equivalence of the following claims.
What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims.
I claim: j
1. A hip joint prosthesis, comprisngfirst means, including a ball-shaped portion which is to form part of a hip joint, and a second portion which is to be inserted into a human femur and extends from said first portion; and second means for ranchoring said second portion in the femur, comprising an elongated expander rod inserted through said second portion and insertable into the femur longitudinally thereof, a row of tubularexpansion elements each surrounding said rod and being angularly displaceable with reference to the longitudinal axis of the same, and actuating means on said expander rod for effecting axial movement of said rod with reference to said row and for thereby causing expansion of said expansion elements into anchoring contact with the femur.
2. A prosthesis as defined in claim 1, said rod having a leading end provided with an expander portion; and said row including a leading expansion member into which said expander portion is drawn in response to said axial movement.
3. A prosthesis as detined'in claim 2, wherein each of said elements has a leading end and a trailing end, a
center passage through which said rod extends which conically diverges towards said leading end, and a slot in its peripheral wall extending from said leading towards said trailing end.
4. A prosthesis as defined in claim 2, wherein each of said elements has a leading end and a part-spherical trailing end, and a center passage through which said rod extends and which conically diverges towards said leading end, said trailing end of each of said elements extending into said center passage at the leading end of the respective axially adjacent element for expanding the latter, in response to said movement of said rod.
5. A prosthesis as defined in claim 4, wherein said elements have an exterior configuration which coaxially converges toward the respective leading end.
6. A prosthesis as defined in claim l, wherein said elements have outer surfaces which are roughened.
7. A prosthesis as defined in claim l, wherein said row includes a leading and a trailing element; and wherein at least said trailing element has an exterior configuration which conically converges in direction towards said leading element.
8. A prosthesis as defined in claim 1, the femur having a curved internal channel; and wherein said rod is and wherein said row includes a leading element, and a trailing element which is adjacent said second portion, said trailing element having an end face provided with a recess into which said inner end extends.
l0. A prosthesis as defined in claim l, said second portion extending at an angle to said first portion and having a bore for said rod, and a surface which faces outwardly from the femur; and said rod having an outer end adapted to bear against said surface.
l1. A prosthesis as defined in claim l, said second portion extending at an angle to said first portion and having a bore for said rod, and a surface which faces outwardly away from the femur; said rod having a trailing portion provided with screw threads; and further a cap nut threadedly engageable with the screw threads of said trailing portion and provided with a head which bears against said surface.
12. A prosthesis as defined in claim 11, wherein said cap nut has an axial length which is at least equal to the distance through which said rod must be moved with reference to said row in order to cause said expansion of said elements.
13. A prosthesis as defined in claim 1, wherein said elements each have a center passage through which said rod extends, said passages and said rod having respective non-circular mating cross-sections for preventing undesired relative angular displacement.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US914103 *||Jul 29, 1907||Mar 2, 1909||David R Berry||Expansion-bolt.|
|US2381050 *||Dec 4, 1943||Aug 7, 1945||Mervyn G Hardinge||Fracture reducing device|
|US2699774 *||May 12, 1952||Jan 18, 1955||Livingston Herman Harrison||Bone pin locking device|
|US2734749 *||Jun 29, 1951||Feb 14, 1956||Multiple sleeve expandable mandrel|
|US2998007 *||Feb 17, 1956||Aug 29, 1961||Herzog Kurt||Internal tubular splint for the fixation of bone fractures and method of applying it|
|US3283640 *||Feb 10, 1965||Nov 8, 1966||Teizo Ono||Anchor bolt|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3996625 *||Feb 28, 1975||Dec 14, 1976||United States Surgical Corporation||Artificial hip joint with novel stem|
|US4010745 *||Mar 4, 1976||Mar 8, 1977||Height Jack L||Flexible splint|
|US4080666 *||Sep 13, 1976||Mar 28, 1978||Fixel Irving E||Implantable prosthetic bone device|
|US4167047 *||Mar 2, 1977||Sep 11, 1979||Hans Grundei||Shanks for knee-joint endoprostheses|
|US4262665 *||Jun 27, 1979||Apr 21, 1981||Roalstad W L||Intramedullary compression device|
|US4385405 *||Oct 2, 1980||May 31, 1983||Teinturier Pierre L||Hip prosthesis and its method of fitting|
|US4520511 *||Jul 30, 1982||Jun 4, 1985||Paribelli Gianezio||Hip prosthesis with expanding femoral component|
|US4530114 *||Jul 16, 1982||Jul 23, 1985||Slobodan Tepic||Total hip joint prostheses|
|US4681590 *||Jun 18, 1986||Jul 21, 1987||John Tansey||Femoral stem prosthesis|
|US4704686 *||May 20, 1986||Nov 3, 1987||Aldinger Guenther||Method of manufacturing of individually formed prothesis or implant|
|US4827919 *||Oct 27, 1986||May 9, 1989||Pfizer Hospital Products Group, Inc.||Femoral spacer|
|US4878917 *||Apr 23, 1987||Nov 7, 1989||Mecron Medizinische Produkte Gmbh||Modular assembly for a shaft prosthesis|
|US4911722 *||Aug 6, 1987||Mar 27, 1990||Office Medico Chirurgical International S.A. (O.M.C.I.)||Mechanical self locking femoral prosthesis and a method for implementing same|
|US4978358 *||Jun 21, 1989||Dec 18, 1990||Zimmer Inc.||Orthopaedic prosthetic device possessing improved composite stem design|
|US4994085 *||Mar 8, 1989||Feb 19, 1991||Aisin Seiki Kabushiki Kaisha||Artificial stem unit for coxa with setting guide|
|US5032133 *||Jan 23, 1990||Jul 16, 1991||Orthovations, Inc.||Method and apparatus for expanding a shaft for use in prosthesis|
|US5064425 *||Aug 11, 1987||Nov 12, 1991||The Institute For Applied Biotechnology||Anchoring member for anchorage in bone tissue|
|US5122141 *||Aug 30, 1990||Jun 16, 1992||Zimmer, Inc.||Modular intramedullary nail|
|US5316550 *||Jan 3, 1992||May 31, 1994||Mark Forte||Prosthesis with flexible intramedullary stem|
|US5489284 *||Jul 15, 1994||Feb 6, 1996||Smith & Nephew Richards Inc.||Cannulated modular intramedullary nail|
|US5531792 *||Jun 14, 1994||Jul 2, 1996||Huene; Donald R.||Bone plug fixation assembly, expansible plug assembly therefor, and method of fixation|
|US5620445 *||Jul 15, 1994||Apr 15, 1997||Brosnahan; Robert||Modular intramedullary nail|
|US5626580 *||Jul 15, 1994||May 6, 1997||Brosnahan; Robert||Multi-section intramedullary nail|
|US5695336 *||Feb 15, 1996||Dec 9, 1997||Implant Innovations, Inc.||Dental implant fixture for anchorage in cortical bone|
|US5697932 *||Nov 9, 1994||Dec 16, 1997||Osteonics Corp.||Bone graft delivery system and method|
|US5702346 *||Feb 14, 1996||Dec 30, 1997||Implant Innovations Inc||Dental implant fixture for anchorage in cortcal bone|
|US5709547 *||Feb 15, 1996||Jan 20, 1998||Implant Innovations, Inc.||Dental implant for anchorage in cortical bone|
|US5713903 *||Dec 30, 1996||Feb 3, 1998||United States Surgical Corporation||Orthopedic fastener|
|US5720753 *||Jun 7, 1995||Feb 24, 1998||United States Surgical Corporation||Orthopedic fastener|
|US5727943 *||Jan 24, 1996||Mar 17, 1998||Implant Innovations, Inc.||Self-tapping, screw-type dental implant|
|US5842865 *||Sep 12, 1997||Dec 1, 1998||Sulzer Calcitek Inc.||Self-tapping implant with multiple concave tapping channels|
|US5876459 *||Aug 30, 1996||Mar 2, 1999||Powell; Douglas Hunter||Adjustable modular orthopedic implant|
|US5897319 *||Sep 12, 1997||Apr 27, 1999||Sulzer Calcitek Inc.||Self-tapping implant with helical flutes|
|US5906644 *||Jun 30, 1997||May 25, 1999||Powell; Douglas Hunter||Adjustable modular orthopedic implant|
|US5928244 *||Oct 17, 1997||Jul 27, 1999||United States Surgical Corporation||Tissue fastener implantation apparatus and method|
|US5948000 *||Aug 28, 1997||Sep 7, 1999||United States Surgical Corporation||System for suture anchor placement|
|US5993459 *||Oct 22, 1998||Nov 30, 1999||Larsen; Scott||Suture anchor installation system with insertion tool|
|US6010506 *||Sep 14, 1998||Jan 4, 2000||Smith & Nephew, Inc.||Intramedullary nail hybrid bow|
|US6045555 *||Dec 10, 1997||Apr 4, 2000||Osteonics Corp.||Bone graft delivery system and method|
|US6076660 *||Feb 5, 1998||Jun 20, 2000||Sulzer Calcitek Inc.||Vial for dental implant delivery system|
|US6086371 *||Feb 5, 1998||Jul 11, 2000||Sulzer Orthopedics Inc.||Dental implant delivery system having driver mount with removable flange|
|US6102956 *||Sep 4, 1996||Aug 15, 2000||Artos Medizinische Produkte Gmbh||Modular endoprosthesis|
|US6142998 *||Jan 3, 2000||Nov 7, 2000||Howmedica Osteonics Corp.||Bone graft delivery surgical instruments|
|US6214050||May 11, 1999||Apr 10, 2001||Donald R. Huene||Expandable implant for inter-bone stabilization and adapted to extrude osteogenic material, and a method of stabilizing bones while extruding osteogenic material|
|US6296644 *||Feb 25, 2000||Oct 2, 2001||Jean Saurat||Spinal instrumentation system with articulated modules|
|US6309395||Apr 25, 2000||Oct 30, 2001||Howmedica Osteonics Corp.||Bone graft delivery surgical instruments|
|US6443992 *||Apr 4, 2001||Sep 3, 2002||Philipp Lubinus||Milling tool for emptying the femoral medullary space and hip prosthesis to be inserted in the space created|
|US6520991||Apr 9, 2001||Feb 18, 2003||Donald R. Huene||Expandable implant for inter-vertebral stabilization, and a method of stabilizing vertebrae|
|US6589281||Jan 16, 2001||Jul 8, 2003||Edward R. Hyde, Jr.||Transosseous core approach and instrumentation for joint replacement and repair|
|US6702854||May 30, 2000||Mar 9, 2004||Apex Surgical, Llc||Implantable joint prosthesis|
|US6716249||Jan 24, 2002||Apr 6, 2004||Edward R. Hyde||Joint prosthesis and method of implantation|
|US6770100 *||Jul 30, 2001||Aug 3, 2004||Klaus Draenert||Modular revision prosthesis|
|US6783548||Jan 24, 2002||Aug 31, 2004||Edward R. Hyde, Jr.||Modular joint prostheses|
|US6984248||May 16, 2002||Jan 10, 2006||Hyde Jr Edward R||Transosseous core approach and instrumentation for joint replacement and repair|
|US7001386 *||Jul 21, 2003||Feb 21, 2006||Advanced Orthopaedic Solutions, Inc.||Intramedullary nail for long bone fractures|
|US7044975||Sep 22, 2003||May 16, 2006||Apex Surgical, Llc||Joint prostheses and components thereof|
|US7097648||Jan 27, 2000||Aug 29, 2006||Disc-O-Tech Medical Technologies Ltd.||Expandable element delivery system|
|US7134437||Mar 22, 2002||Nov 14, 2006||Bonutti Ip, Llc||Method for utilizing human tissue|
|US7137816||Jun 27, 2002||Nov 21, 2006||Zimmer Dental Inc.||Impression post and temporary abutment and method of making dental restoration|
|US7160109||Jun 27, 2002||Jan 9, 2007||Sulzer Dental Inc.||Torque limiting implant drive system|
|US7255712 *||Apr 15, 1997||Aug 14, 2007||Active Implants Corporation||Bone growth promoting implant|
|US7462200||Nov 23, 2005||Dec 9, 2008||Marctec, Llc||Method for tissue grafting|
|US7572297||Oct 8, 2004||Aug 11, 2009||Omni Life Science, Inc.||Tapered joint prosthesis|
|US7621950 *||Jan 27, 2000||Nov 24, 2009||Kyphon Sarl||Expandable intervertebral spacer|
|US7682400||Mar 23, 2010||Spinal Ventures, Llc||Non-soft tissue repair|
|US7687057||Mar 30, 2010||Yissum Research Development Company Of The Hebrew University Of Jerusalem||In vitro micro-organs, and uses related thereto|
|US7727283||Mar 4, 2004||Jun 1, 2010||P Tech, Llc.||Tissue stabilizing implant method|
|US7785325 *||Feb 5, 2007||Aug 31, 2010||Milbank Miles C||Multi-articulated fracture fixation device with adjustable modulus of rigidity|
|US7846162 *||Dec 7, 2010||Sonoma Orthopedic Products, Inc.||Minimally invasive actuable bone fixation devices|
|US7857840||Oct 1, 2007||Dec 28, 2010||The Cleveland Clinic Foundation||Fastener assembly|
|US7896880||Mar 1, 2011||P Tech, Llc||Apparatus and method for tissue removal|
|US7909825||Nov 21, 2007||Mar 22, 2011||Sonoma Orthepedic Products, Inc.||Fracture fixation device, tools and methods|
|US7914533 *||Nov 30, 2006||Mar 29, 2011||Sonoma Orthopedic Products, Inc.||Minimally invasive actuable bone fixation devices|
|US7942875||May 15, 2006||May 17, 2011||Sonoma Orthopedic Products, Inc.||Methods of using minimally invasive actuable bone fixation devices|
|US8012155||Apr 2, 2009||Sep 6, 2011||Zimmer, Inc.||Apparatus and method for prophylactic hip fixation|
|US8034109||Oct 11, 2011||Morphogeny, Llc||Linked slideable and interlockable rotatable components|
|US8066713||Nov 29, 2011||Depuy Spine, Inc.||Remotely-activated vertebroplasty injection device|
|US8128627||Dec 29, 2008||Mar 6, 2012||Sonoma Orthopedic Products, Inc.||Segmented intramedullary system and apparatus|
|US8216320||Aug 11, 2006||Jul 10, 2012||Howmedica Osteonics Corp.||Expanding trial stem for orthopaedic surgery|
|US8262658 *||Jun 27, 2007||Sep 11, 2012||Synthes Usa, Llc||Intramedullary nail|
|US8287539||Jun 10, 2009||Oct 16, 2012||Sonoma Orthopedic Products, Inc.||Fracture fixation device, tools and methods|
|US8287541||Oct 16, 2012||Sonoma Orthopedic Products, Inc.||Fracture fixation device, tools and methods|
|US8298264 *||Sep 7, 2006||Oct 30, 2012||Warsaw Orthopedic, Inc||Systems and methods for use in spinal support|
|US8333773||Aug 30, 2007||Dec 18, 2012||Depuy Spine, Inc.||Remotely-activated vertebroplasty injection device|
|US8360629||Jan 29, 2013||Depuy Spine, Inc.||Mixing apparatus having central and planetary mixing elements|
|US8361078||Jan 29, 2013||Depuy Spine, Inc.||Methods, materials and apparatus for treating bone and other tissue|
|US8372074 *||Feb 12, 2013||Miles C. Milbank||Multi-articulated fracture fixation device with adjustable modulus of rigidity|
|US8409295||Aug 23, 2010||Apr 2, 2013||David S. Geller||Method and apparatus for replacing a femoral component of a hip joint|
|US8415407||Feb 22, 2006||Apr 9, 2013||Depuy Spine, Inc.||Methods, materials, and apparatus for treating bone and other tissue|
|US8430879||Apr 30, 2013||Sonoma Orthopedic Products, Inc.||Segmented intramedullary structure|
|US8439917||May 14, 2013||Sonoma Orthopedic Products, Inc.||Fracture fixation device, tools and methods|
|US8449583||May 28, 2013||The Cleveland Clinic Foundation||Fastener assembly|
|US8496658||Sep 11, 2012||Jul 30, 2013||Sonoma Orthopedic Products, Inc.||Segmented intramedullary structure|
|US8529628||Jun 9, 2010||Sep 10, 2013||Trinity Orthopedics, Llc||Expanding intervertebral device and methods of use|
|US8540722||Jun 16, 2009||Sep 24, 2013||DePuy Synthes Products, LLC||Methods, materials and apparatus for treating bone and other tissue|
|US8545499 *||Sep 27, 2010||Oct 1, 2013||Zimmer, Inc.||Expandable intramedullary rod|
|US8568413||Dec 18, 2009||Oct 29, 2013||Sonoma Orthopedic Products, Inc.||Bone fixation device, tools and methods|
|US8579908||Sep 22, 2004||Nov 12, 2013||DePuy Synthes Products, LLC.||Device for delivering viscous material|
|US8613942 *||Jun 15, 2010||Dec 24, 2013||Heraeus Medical Gmbh||Medical system, pulling device and method for pulling an active substance chain|
|US8728160||Jan 24, 2005||May 20, 2014||Warsaw Orthopedic, Inc.||Expandable intervertebral spacer|
|US8734520 *||Nov 12, 2009||May 27, 2014||Spinal Ventures, Llc||Device and method for securing a fastener|
|US8809418||Mar 11, 2013||Aug 19, 2014||DePuy Synthes Products, LLC||Methods, materials and apparatus for treating bone and other tissue|
|US8870933||Sep 20, 2007||Oct 28, 2014||Woodwelding Ag||Implant, implantation device, implantation method|
|US8950929||Oct 18, 2007||Feb 10, 2015||DePuy Synthes Products, LLC||Fluid delivery system|
|US8956368||Aug 27, 2013||Feb 17, 2015||DePuy Synthes Products, LLC||Methods, materials and apparatus for treating bone and other tissue|
|US8961516||Sep 13, 2012||Feb 24, 2015||Sonoma Orthopedic Products, Inc.||Straight intramedullary fracture fixation devices and methods|
|US8992541||Nov 27, 2013||Mar 31, 2015||DePuy Synthes Products, LLC||Hydraulic device for the injection of bone cement in percutaneous vertebroplasty|
|US9011549||Jun 18, 2012||Apr 21, 2015||Howmedica Osteonics Corp.||Expanding trial stem for orthopaedic surgery|
|US9060820 *||Sep 13, 2012||Jun 23, 2015||Sonoma Orthopedic Products, Inc.||Segmented intramedullary fracture fixation devices and methods|
|US9127084||Jun 15, 2011||Sep 8, 2015||Medgenics Medical Israel Ltd.||Long lasting drug formulations|
|US9138243 *||Mar 16, 2012||Sep 22, 2015||Orthopaedic International, Inc.||Bone compactor|
|US9155574 *||Sep 28, 2009||Oct 13, 2015||Sonoma Orthopedic Products, Inc.||Bone fixation device, tools and methods|
|US9155749||Sep 12, 2007||Oct 13, 2015||Medgenics Medical Israel Ltd.||Long lasting drug formulations|
|US9186194||Feb 5, 2015||Nov 17, 2015||DePuy Synthes Products, Inc.||Hydraulic device for the injection of bone cement in percutaneous vertebroplasty|
|US9241805 *||Feb 26, 2015||Jan 26, 2016||DePuy Synthes Products, Inc.||Nested expandable sleeve implant|
|US9259250||Apr 11, 2013||Feb 16, 2016||Sonoma Orthopedic Products, Inc.||Fracture fixation device, tools and methods|
|US9259696||Aug 10, 2012||Feb 16, 2016||DePuy Synthes Products, Inc.||Mixing apparatus having central and planetary mixing elements|
|US9381024||Sep 28, 2006||Jul 5, 2016||DePuy Synthes Products, Inc.||Marked tools|
|US9445888||Sep 22, 2014||Sep 20, 2016||Woodwelding Ag||Implant, implantation device, implantation method|
|US20020029055 *||Jun 1, 2001||Mar 7, 2002||Bonutti Peter M.||Apparatus and method for tissue removal|
|US20020099401 *||Mar 22, 2002||Jul 25, 2002||Bonutti Petel M.||Apparatus and method for tissue removal|
|US20030050704 *||Jul 2, 2002||Mar 13, 2003||Ory Keynan||Prosthesis|
|US20030054318 *||Jun 27, 2002||Mar 20, 2003||Christopher Gervais||Torque limiting implant drive system|
|US20030054319 *||Jun 27, 2002||Mar 20, 2003||Christopher Gervais||Impression post and temporary abutment and method of making dental restoration|
|US20030152561 *||Dec 17, 2002||Aug 14, 2003||Mitrani Eduardo N.||In vitro micro-organs, and uses related thereto|
|US20030157074 *||Dec 17, 2002||Aug 21, 2003||Mitrani Eduardo N.||Vitro micro-organs, and uses related thereto|
|US20040167625 *||Jul 28, 2003||Aug 26, 2004||Disc-O-Tech Orthopedic Technologies Inc.||Spacer filler|
|US20050055023 *||Jul 21, 2003||Mar 10, 2005||Advanced Orthopaedic Solutions, Inc.||Intramedullary nail for long bone fractures|
|US20050137711 *||Dec 19, 2003||Jun 23, 2005||Southworth Carleton B.||Pre-stressed implant|
|US20060142865 *||Nov 28, 2005||Jun 29, 2006||Hyde Edward R Jr||Transosseous core approach and instrumentation for joint replacement and repair|
|US20060184246 *||Dec 9, 2005||Aug 17, 2006||Zwirkoski Paul A||Non-soft tissue repair|
|US20060189999 *||Feb 24, 2006||Aug 24, 2006||Paul Zwirkoski||Linked slideable and interlockable rotatable components|
|US20060259152 *||Jul 17, 2006||Nov 16, 2006||Depuy Products, Inc.||Pre-stressed implant|
|US20070043447 *||Oct 8, 2004||Feb 22, 2007||Cheal Edward J||Tapered joint prosthesis|
|US20070183974 *||Nov 5, 2002||Aug 9, 2007||Pearlman Andrew L||Method and apparatus for production of a skin graft and the graft produced thereby|
|US20080009869 *||Jun 27, 2007||Jan 10, 2008||Andre Schlienger||Intramedullary nail|
|US20080039950 *||Aug 11, 2006||Feb 14, 2008||Howmedica Osteonics Corp.||Expanding trial stem for orthopaedic surgery|
|US20080065069 *||Sep 7, 2006||Mar 13, 2008||Warsaw Orthopedic Inc.||Systems and methods for use in spinal support|
|US20080090777 *||Sep 12, 2007||Apr 17, 2008||Pearlman Andrew L||Long lasting drug formulations|
|US20080109080 *||Sep 20, 2007||May 8, 2008||Woodwelding Ag||Implant, implantation device, implantation method|
|US20080188897 *||Oct 1, 2007||Aug 7, 2008||The Cleveland Clinic Foundation||Fastener assembly|
|US20090018542 *||Jul 11, 2008||Jan 15, 2009||Sonoma Orthopedic Products,Inc.||Fracture fixation devices, systems and methods incorporating a membrane|
|US20100076497 *||Mar 25, 2010||Zwirkoski Paul A||Device and Method for Securing a Fastener|
|US20100094292 *||Oct 9, 2009||Apr 15, 2010||Zimmer, Inc.||Modular intramedullary nail|
|US20100256640 *||Apr 2, 2009||Oct 7, 2010||Zimmer, Inc.||Apparatus and method for prophylactic hip fixation|
|US20100318023 *||Dec 16, 2010||Heraeus Medical Gmbh||Medical system, pulling device and method for pulling an active substance chain|
|US20100331842 *||Aug 31, 2010||Dec 30, 2010||Milbank Miles C||Multi-articulated fracture fixation device with adjustable modulus of rigidity|
|US20110077651 *||Sep 27, 2010||Mar 31, 2011||Zimmer, Inc.||Expandable intramedullary rod|
|US20110077747 *||Aug 23, 2010||Mar 31, 2011||Geller David S||Method and apparatus for replacing a femoral component of a hip joint|
|US20110087227 *||Apr 14, 2011||Mazur Kal U||Bone fixation device, tools and methods|
|US20110184472 *||Sep 14, 2009||Jul 28, 2011||Alfred Niederberger||Expandable Bone Support|
|US20110201115 *||Aug 18, 2011||Pearlman Andrew L||Method and apparatus for production of a skin graft and the graft produced thereby|
|US20120116529 *||Jul 12, 2010||May 10, 2012||Milux Holding Sa||Hip joint device|
|US20120239038 *||Sep 28, 2009||Sep 20, 2012||Sonoma Orthopedic Products, Inc||Bone fixation device, tools and methods|
|US20120245646 *||Sep 27, 2012||Gustilo Ramon B||Bone compactor|
|US20130012942 *||Sep 13, 2012||Jan 10, 2013||Sonoma Orthopedic Products, Inc.||Segmented intramedullary fracture fixation devices and methods|
|US20150164649 *||Feb 26, 2015||Jun 18, 2015||DePuy Synthes Products, Inc.||Nested Expandable Sleeve Implant|
|CN1835720B||Jun 17, 2004||Sep 28, 2011||Disc-O-Tech医学技术有限公司||Deformable tools and implants|
|EP0144574A2 *||Sep 14, 1984||Jun 19, 1985||Ulrich Dr.-Ing. Witzel||Composite hip endoprosthesis|
|WO1998018397A1||Oct 28, 1997||May 7, 1998||Smith & Nephew, Inc.||Cannulated modular intramedullary nail|
|WO2000015127A1||Sep 8, 1999||Mar 23, 2000||Smith & Nephew, Inc.||Intramedullary nail with a hybrid bow|
|WO2002067811A2 *||Jan 16, 2002||Sep 6, 2002||Hyde Edward R Jr||Prostheses and instrumentation for joint replacement and repair|
|WO2002067811A3 *||Jan 16, 2002||Mar 20, 2003||Edward R Hyde Jr||Prostheses and instrumentation for joint replacement and repair|
|WO2004028413A1 *||Sep 29, 2003||Apr 8, 2004||Walter Ramseier||Femoral component for a hip prosthesis|
|WO2004110300A2 *||Jun 17, 2004||Dec 23, 2004||Disc Orthopaedic Technologies Inc.||Deformable tools and implants|
|WO2004110300A3 *||Jun 17, 2004||Jun 30, 2005||Mordechay Beyar||Deformable tools and implants|
|WO2008116175A2 *||Mar 21, 2008||Sep 25, 2008||Novalign Orthopaedics, Inc.||Segmented intramedullary structure|
|WO2008116175A3 *||Mar 21, 2008||Nov 6, 2008||Osteolign Inc||Segmented intramedullary structure|
|WO2009143374A2 *||May 21, 2009||Nov 26, 2009||Novalign Orthopaedics, Inc.||Modular segmented intramedullary system, apparatus and associated methods|
|WO2009143374A3 *||May 21, 2009||Feb 10, 2011||Novalign Orthopaedics, Inc.||Modular segmented intramedullary system, apparatus and associated methods|
|WO2010135156A1 *||May 13, 2010||Nov 25, 2010||Novalign Orthopaedics, Inc.||Snap and twist segmented intramedullary system, apparatus and associated methods|
|U.S. Classification||623/23.18, 411/33, 606/313, 606/323, 606/327|
|International Classification||A61F2/36, A61F2/30, A61F2/00|
|Cooperative Classification||A61F2002/30332, A61F2/36, A61F2250/0063, A61F2002/30512, A61F2310/00023, A61F2002/30579, A61F2002/30836, A61F2002/30594, A61F2002/30377, A61F2230/0067, A61F2220/0033, A61F2002/30217, A61F2002/3051, A61F2002/30599, A61F2002/3611, A61F2/3662, A61F2220/0025, A61F2/3676|