US20110295325A1 - Bone Plate - Google Patents
Bone Plate Download PDFInfo
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- US20110295325A1 US20110295325A1 US13/151,975 US201113151975A US2011295325A1 US 20110295325 A1 US20110295325 A1 US 20110295325A1 US 201113151975 A US201113151975 A US 201113151975A US 2011295325 A1 US2011295325 A1 US 2011295325A1
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- Prior art keywords
- hole
- bone plate
- holes
- plate
- longitudinal axis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
- A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8004—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones
- A61B17/8014—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones the extension or compression force being caused by interaction of the plate hole and the screws
Definitions
- the present invention relates generally to devices for fixation of parts of a fractured bone and more specifically, to bone plates and systems for stabilization and/or compression of parts of a fractured bone.
- Bone plates may generally be utilized to carry out two different types of osteosynthesis, namely “rigid osteosynthesis” and “flexible osteosynthesis.”
- Rigid osteosynthesis is used for medical care of joint fractures, simple shaft fractures (where nailing is impossible) as well as for osteotomies.
- the bone itself supports and stabilizes the osteosynthesis, which allows for the possibility of putting stress on the extremity earlier and without pain. Additional advantages of the medical care of stable fractures can be observed when the blood circulation in the bone is greatly diminished due to trauma.
- the fracture For treating “nonunions” or in the case of existing infection, the fracture must be kept stable in order to make bone healing possible and so as not to irritate the infection further by instability of the fracture gap.
- Flexible osteosynthesis also known as “biological osteosynthesis,” may be desirable in the medical treatment of comminuted fractures in the shaft region of tubular bones. In the case of these fractures, it is an objective to maintain the proper length of the bone and to fix the bone ends (joints) in their proper anatomic positions with respect to one another. With flexible osteosynthesis, the fracture zone is not directly affixed or manipulated, and consequently, the blood circulation in this area is not inhibited. Bone plates designed for flexible osteosynthesis thus operate similarly to a locking, intramedullary nail, which is anchored only in the metaphyses.
- the present invention is directed to a bone plate that is adapted to be used for both rigid and flexible osteosynthesis, without compromising the plates ability to be used for either type of osteosynthesis. Accordingly, the bone plate of the present invention may be used as a compression plate or as an internal fixative.
- the bone plate includes an upper surface, a bone contacting surface, and a plurality of holes extending through the upper and bone contacting surfaces. At least one of the holes is elongated in a direction substantially aligned with a longitudinal axis of the plate, and includes a threaded portion and a non-threaded portion. The threaded portion may extend over a range of greater than about 180° with respect to a central axis of the hole. The threaded portion of the hole is dimensioned and configured to engage a threaded head of a bone screw, and fix the bone screw at a predetermined angle with respect to the bone plate. Preferably, the threaded portion extends through the full thickness of the bone plate, i.e., from the upper surface to the bone contacting surface, thus maximizing the stability of the bone screw to bone plate interface.
- the bone plate With the threaded screw head fixed in the threaded portion of the elongated hole, the bone plate may be used as an internal fixative. Use in this configuration, however, creates high stresses at the interface of the bone plate and screw head because the plate is not forced against the bone, and therefore, the bone fracture is fixed primarily by friction between the plate and the bone. This increase in stress is taken into account by the threaded portion of the hole extending over a range of at least about 180° with respect to a central axis of the hole, and thereby enclosing the screw head in at least this angular range. This feature of the bone plate is especially advantageous where thin bone plates are involved.
- the threaded portion is disposed on one of the two longitudinal ends of the hole.
- the threaded portion may extend over a range of between about 190° and about 280°, and preferably over a range of between about 200° to 250°, thus maximizing the strength of the bone screw to bone plate interface.
- At least one of the holes may include a threaded portion that is angled or tapered with respect to a central axis of the hole. More specifically, the threaded portion may conically taper inward towards the bone-contacting surface of the bone plate.
- a bone screw to be rigidly fixed to the bone plate may include a threaded screw head that is tapered to substantially match the tapered shape of the threaded portion of the hole.
- the bone screw may be rigidly fixed to the bone plate by engagement between the matching conical threads. This method of attachment is especially advantageous when self-drilling screws are to be used since, due to the conical shape of the matching threads, the screw may be inserted into the bone independently of the plate.
- the screw head becomes rigidly clamped to the plate only as the threaded screw head penetrates the threaded portion of the hole.
- the conical shape of the mating threads ensures that the threads on the screw head will ultimately align with the threaded portion of the hole.
- the screw head creates radial forces in the plate hole.
- the bone plate must be dimensioned and configured to withstand these high radial forces, e.g., to withstand flexing of the walls of the screw holes in the bone plate.
- the threaded portion preferably tapers at a cone angle of between about 5° and about 20°. Preferably, the thread tapers at a cone angle of about 10°.
- the threaded portion of the hole may extend through a different angle when measured at the upper surface than when measured at the bone-contacting surface.
- the threaded portion when measured at the upper surface, may extend through a first angle of between about 200° and about 270°, while when measured at the bone-contacting surface, the threaded portion may extend through a second angle of between about 180° and about 230°.
- the non-threaded portion of the elongated hole may include a concave, substantially spherical recess at the upper surface.
- the recess may be dimensioned and configured to accommodate the spherical head of a conventional bone screw.
- Such an arrangement may be especially useful when the bone screw is put in place eccentrically with respect to the hole, as is necessary for attaining compression of a fracture.
- the non-threaded portion of the hole may flare outward in the area of the bone contacting surface to provide for increased angulation of the bone screw with respect to the bone plate.
- the threaded portion of the hole may be positioned closer to the end of the elongated hole that is closer to the center of the plate, thus avoiding any undesirable effects on the compression capability of the non-threaded portion.
- compression portion the geometry of the non-threaded portion (compression portion) is not adversely affected by the presence of the threaded portion.
- the hole may be elongated.
- the elongated hole may define first and second dimensions on the bone contacting surface, wherein the first dimension D L is substantially parallel to the longitudinal axis of the bone plate and the second dimension D Q is substantially perpendicular to the longitudinal axis.
- the ratio of D L /D Q may be within the range of about 1.1 to 3, and preferably is in the range of about 1.1 to 1.5. This ratio follows from the combination of the threaded portion (locking portion) with the non-threaded portion (compression portion), which requires a clamping path for the screw head. This ration of D L /D Q represents a preferred compromise between compression and plate weakening due to the presence of the hole.
- the underside of the bone plate may be concave, thus allowing the plate to conform to the rounded cross-section of the tibia, femur, humerus, lower arm bone, and other bones with which the present invention may be used.
- the concave configuration of the underside also allows a conventional bone screw to be inserted obliquely through the plate hole. This feature may be especially important when gripping a small bone fragment, which must be pulled up to the plate.
- the present invention is also directed to a bone plating system including at least one bone screw having a screw head with a thread disposed thereon, the thread being configured and dimensioned to engage the threaded portion of the above-described bone plate holes.
- the bone screw is self-tapping and/or self-drilling.
- FIG. 1 is a top view of a segment of a bone plate according to one embodiment of the present invention.
- FIG. 2 is a top view of a segment of a bone plate according to another embodiment of the present invention.
- FIG. 3 is a longitudinal cross-sectional view showing a threaded hole of the bone plate of FIG. 1 ;
- FIG. 4 is a longitudinal cross-sectional view of a partially-threaded, elongated hole of the bone plate of FIG. 2 ;
- FIG. 5 is a perspective view of the segment of the bone plate of FIG. 2 , with a bone screw inserted into the partially-threaded, elongated hole.
- FIG. 1 One embodiment of a bone plate according to the present invention is shown in FIG. 1 .
- the bone plate includes an upper surface 1 , a bone-contacting surface 2 , and defines a longitudinal axis 3 .
- the bone plate further includes two holes 4 A and 4 B, which are generally located along the longitudinal axis 3 , and extend through the bone plate from upper surface 1 to bone-contacting surface 2 .
- Holes 4 A and 4 B are dimensioned and configured to receive the heads of bone screws.
- arrow 7 indicates a longitudinal direction toward one end of the bone plate and arrow 8 indicates a longitudinal direction toward a central portion of the bone plate.
- hole 4 A which is located closer to the central portion of the bone plate, is elongated along the longitudinal axis 3 of the bone plate. More specifically, hole 4 A defines first and second dimensions on bone-contacting surface 2 .
- First dimension D L is substantially parallel to longitudinal axis 3
- second dimension D Q is substantially perpendicular to longitudinal axis 3 .
- First dimension D L is preferably larger than second dimension D Q .
- D L is 5.2 mm and D Q is 3 mm, however other dimensions are possible.
- Elongated hole 4 A may be provided with a concave and preferably spherical recess 6 near upper surface 1 . Recess 6 may be dimensioned to receive a bone screw having a substantially spherical-shaped head.
- Hole 4 B which is located closer to one end of the bone plate, includes a thread 5 which extends through an angle of 360° around the hole 4 B.
- hole 4 B assumes the shape of a cone tapering inward in a direction toward bone contacting surface 2 , and accordingly thread 5 also tapers inward toward bone contacting surface 2 .
- hole 4 B and thread 5 preferably taper inward with respect to central axis 20 of hole 4 B by a cone angle 22 of about 10°, however other value of cone angle 22 are possible.
- thread 5 is preferably a double thread. As shown in FIG. 3 , thread 5 of hole 4 B may run along the full thickness of the bone plate from the upper surface 1 to the bone-contacting surface 2 .
- the two bone-plate holes 4 A and 4 B of FIG. 1 may be combined to form a combination hole 4 C.
- the combination hole 4 C is thus provided with a threaded portion which includes a thread 5 , and a non-threaded portion which has no threads disposed thereon.
- the threaded portion is preferably located at the end of the hole 4 C which is nearer to the central portion of the bone plate.
- first angle 9 is about 223° and second angle 10 is about 256°, however other values of first and second angles 9 , 10 are possible.
- combination hole 4 C is shown with a bone screw 11 received therein.
- the bone screw preferably has a screw head 13 with a thread 12 disposed thereon.
- thread 12 may substantially match thread 5 of combination hole 4 C.
- bone screw 12 is self-drilling and/or self-tapping.
Abstract
Description
- The present application is a continuation of U.S. patent application Ser. No. 09/946,974, which is a continuation-in-part of the U.S. National Stage designation of International Patent Application PCT/CH99/00106, filed Mar. 9, 1999 and the U.S. National Stage designation of International Patent Application PCT/CH99/00107, also filed Mar. 9, 1999. The entire content of both of these applications is expressly incorporated herein by reference thereto.
- The present invention relates generally to devices for fixation of parts of a fractured bone and more specifically, to bone plates and systems for stabilization and/or compression of parts of a fractured bone.
- Bone plates may generally be utilized to carry out two different types of osteosynthesis, namely “rigid osteosynthesis” and “flexible osteosynthesis.” Rigid osteosynthesis is used for medical care of joint fractures, simple shaft fractures (where nailing is impossible) as well as for osteotomies. Aside from the possibility of anatomical repositioning, the bone itself supports and stabilizes the osteosynthesis, which allows for the possibility of putting stress on the extremity earlier and without pain. Additional advantages of the medical care of stable fractures can be observed when the blood circulation in the bone is greatly diminished due to trauma. For treating “nonunions” or in the case of existing infection, the fracture must be kept stable in order to make bone healing possible and so as not to irritate the infection further by instability of the fracture gap.
- Flexible osteosynthesis, also known as “biological osteosynthesis,” may be desirable in the medical treatment of comminuted fractures in the shaft region of tubular bones. In the case of these fractures, it is an objective to maintain the proper length of the bone and to fix the bone ends (joints) in their proper anatomic positions with respect to one another. With flexible osteosynthesis, the fracture zone is not directly affixed or manipulated, and consequently, the blood circulation in this area is not inhibited. Bone plates designed for flexible osteosynthesis thus operate similarly to a locking, intramedullary nail, which is anchored only in the metaphyses.
- Since fractures cannot always be treated with one type of osteosynthesis, surgeons must frequently compromise because a bone plate, which allows him to combine the two types of osteosynthesis discussed above, is not available. Such a combination would be beneficial, for example, when a joint fracture can be compressed with traction screws through the bone plate and the whole of the joint may be connected to the diaphysis over an internal fixative with angularly stable screws. Another illustrative application concerns porotic bones, where a bone plate with axially and angularly stable screws can be anchored in the metaphysial fragment, with a stable plate-affixation being undertaken in the diaphyseal range with the assistance of a plate traction screw through the fracture. A primary fracture stabilization can be achieved by this type of procedure.
- This situation has led to the development and marketing of bone implants for both types of osteosynthesis. The two types of implant group, however, are designed specifically for their respective method. Thus, the disadvantages of these two systems lies in the difficulty in combining them.
- Thus, a need exists for improved bone plates that provide for both rigid and flexible osteosynthesis.
- The present invention is directed to a bone plate that is adapted to be used for both rigid and flexible osteosynthesis, without compromising the plates ability to be used for either type of osteosynthesis. Accordingly, the bone plate of the present invention may be used as a compression plate or as an internal fixative.
- According to one embodiment of the invention, the bone plate includes an upper surface, a bone contacting surface, and a plurality of holes extending through the upper and bone contacting surfaces. At least one of the holes is elongated in a direction substantially aligned with a longitudinal axis of the plate, and includes a threaded portion and a non-threaded portion. The threaded portion may extend over a range of greater than about 180° with respect to a central axis of the hole. The threaded portion of the hole is dimensioned and configured to engage a threaded head of a bone screw, and fix the bone screw at a predetermined angle with respect to the bone plate. Preferably, the threaded portion extends through the full thickness of the bone plate, i.e., from the upper surface to the bone contacting surface, thus maximizing the stability of the bone screw to bone plate interface.
- With the threaded screw head fixed in the threaded portion of the elongated hole, the bone plate may be used as an internal fixative. Use in this configuration, however, creates high stresses at the interface of the bone plate and screw head because the plate is not forced against the bone, and therefore, the bone fracture is fixed primarily by friction between the plate and the bone. This increase in stress is taken into account by the threaded portion of the hole extending over a range of at least about 180° with respect to a central axis of the hole, and thereby enclosing the screw head in at least this angular range. This feature of the bone plate is especially advantageous where thin bone plates are involved. Preferably, the threaded portion is disposed on one of the two longitudinal ends of the hole. This positioning allows for the threaded portion to extend over a larger angular range. For example, the threaded portion may extend over a range of between about 190° and about 280°, and preferably over a range of between about 200° to 250°, thus maximizing the strength of the bone screw to bone plate interface.
- According to another embodiment of the present invention, at least one of the holes may include a threaded portion that is angled or tapered with respect to a central axis of the hole. More specifically, the threaded portion may conically taper inward towards the bone-contacting surface of the bone plate. A bone screw to be rigidly fixed to the bone plate may include a threaded screw head that is tapered to substantially match the tapered shape of the threaded portion of the hole. Thus, the bone screw may be rigidly fixed to the bone plate by engagement between the matching conical threads. This method of attachment is especially advantageous when self-drilling screws are to be used since, due to the conical shape of the matching threads, the screw may be inserted into the bone independently of the plate. More specifically, the screw head becomes rigidly clamped to the plate only as the threaded screw head penetrates the threaded portion of the hole. Despite any initial misalignment between the threads on the screw head (the position of which are initially dictated by the orientation of the bone screw in the bone) and the threads on the bone plate, the conical shape of the mating threads ensures that the threads on the screw head will ultimately align with the threaded portion of the hole. When the conical thread screw head is tightened into the threaded portion of the hole, the screw head creates radial forces in the plate hole. Thus, the bone plate must be dimensioned and configured to withstand these high radial forces, e.g., to withstand flexing of the walls of the screw holes in the bone plate.
- The threaded portion preferably tapers at a cone angle of between about 5° and about 20°. Preferably, the thread tapers at a cone angle of about 10°.
- In the case where the threaded portion of the hole is tapered, as discussed above, the threaded portion may extend through a different angle when measured at the upper surface than when measured at the bone-contacting surface. For example, when measured at the upper surface, the threaded portion may extend through a first angle of between about 200° and about 270°, while when measured at the bone-contacting surface, the threaded portion may extend through a second angle of between about 180° and about 230°.
- According to another aspect of the present invention, at least one of the holes may be dimensioned and configured to receive a ball shaped head of a bone screw and provide for compression of two fractured bone fragments. For example, according to one embodiment, the non-threaded portion of the elongated hole, discussed above, may include a concave, substantially spherical recess at the upper surface. The recess may be dimensioned and configured to accommodate the spherical head of a conventional bone screw. Such an arrangement may be especially useful when the bone screw is put in place eccentrically with respect to the hole, as is necessary for attaining compression of a fracture. Additionally, the non-threaded portion of the hole may flare outward in the area of the bone contacting surface to provide for increased angulation of the bone screw with respect to the bone plate.
- The threaded portion of the hole may be positioned closer to the end of the elongated hole that is closer to the center of the plate, thus avoiding any undesirable effects on the compression capability of the non-threaded portion. Thus, when the bone plate is used as a compression plate, the geometry of the non-threaded portion (compression portion) is not adversely affected by the presence of the threaded portion.
- As discussed above, the hole may be elongated. Thus, the elongated hole may define first and second dimensions on the bone contacting surface, wherein the first dimension DL is substantially parallel to the longitudinal axis of the bone plate and the second dimension DQ is substantially perpendicular to the longitudinal axis. The ratio of DL/DQ may be within the range of about 1.1 to 3, and preferably is in the range of about 1.1 to 1.5. This ratio follows from the combination of the threaded portion (locking portion) with the non-threaded portion (compression portion), which requires a clamping path for the screw head. This ration of DL/DQ represents a preferred compromise between compression and plate weakening due to the presence of the hole.
- According to another embodiment of the invention, the underside of the bone plate may be concave, thus allowing the plate to conform to the rounded cross-section of the tibia, femur, humerus, lower arm bone, and other bones with which the present invention may be used. The concave configuration of the underside also allows a conventional bone screw to be inserted obliquely through the plate hole. This feature may be especially important when gripping a small bone fragment, which must be pulled up to the plate.
- The present invention is also directed to a bone plating system including at least one bone screw having a screw head with a thread disposed thereon, the thread being configured and dimensioned to engage the threaded portion of the above-described bone plate holes. Preferably, the bone screw is self-tapping and/or self-drilling.
- To facilitate an understanding of the characteristics, structure and operation of the invention, preferred features of the invention are described in the accompanying discussion, wherein similar reference characters denote similar elements throughout the several views or embodiments, and wherein:
-
FIG. 1 is a top view of a segment of a bone plate according to one embodiment of the present invention; -
FIG. 2 is a top view of a segment of a bone plate according to another embodiment of the present invention; -
FIG. 3 is a longitudinal cross-sectional view showing a threaded hole of the bone plate ofFIG. 1 ; -
FIG. 4 is a longitudinal cross-sectional view of a partially-threaded, elongated hole of the bone plate ofFIG. 2 ; and -
FIG. 5 is a perspective view of the segment of the bone plate ofFIG. 2 , with a bone screw inserted into the partially-threaded, elongated hole. - One embodiment of a bone plate according to the present invention is shown in
FIG. 1 . The bone plate includes anupper surface 1, a bone-contactingsurface 2, and defines alongitudinal axis 3. The bone plate further includes twoholes longitudinal axis 3, and extend through the bone plate fromupper surface 1 to bone-contactingsurface 2.Holes FIG. 1 ,arrow 7 indicates a longitudinal direction toward one end of the bone plate andarrow 8 indicates a longitudinal direction toward a central portion of the bone plate. - Still referring to
FIG. 1 ,hole 4A, which is located closer to the central portion of the bone plate, is elongated along thelongitudinal axis 3 of the bone plate. More specifically,hole 4A defines first and second dimensions on bone-contactingsurface 2. First dimension DL is substantially parallel tolongitudinal axis 3, and second dimension DQ is substantially perpendicular tolongitudinal axis 3. First dimension DL is preferably larger than second dimension DQ. According to one preferred embodiment, DL is 5.2 mm and DQ is 3 mm, however other dimensions are possible.Elongated hole 4A may be provided with a concave and preferablyspherical recess 6 nearupper surface 1.Recess 6 may be dimensioned to receive a bone screw having a substantially spherical-shaped head. -
Hole 4B, which is located closer to one end of the bone plate, includes athread 5 which extends through an angle of 360° around thehole 4B. As shown in the schematical representation ofFIG. 1 ,hole 4B assumes the shape of a cone tapering inward in a direction towardbone contacting surface 2, and accordinglythread 5 also tapers inward towardbone contacting surface 2. As shown inFIG. 3 ,hole 4B andthread 5 preferably taper inward with respect tocentral axis 20 ofhole 4B by acone angle 22 of about 10°, however other value ofcone angle 22 are possible. In addition,thread 5 is preferably a double thread. As shown inFIG. 3 ,thread 5 ofhole 4B may run along the full thickness of the bone plate from theupper surface 1 to the bone-contactingsurface 2. - In one preferred embodiment of the invention shown in
FIGS. 2 and 4 , the two bone-plate holes FIG. 1 may be combined to form acombination hole 4C. The combination hole 4C is thus provided with a threaded portion which includes athread 5, and a non-threaded portion which has no threads disposed thereon. The threaded portion is preferably located at the end of thehole 4C which is nearer to the central portion of the bone plate. - With reference to
FIG. 2 , when measured atupper surface 1, the threaded portion (thread 5) extends over afirst angle 9 with respect to the central axis ofhole 4C, and when measured at bone-contactingsurface 2, the threaded portion (thread 5) extends over asecond angle 10 with respect to the central axis. Preferably,first angle 9 is about 223° andsecond angle 10 is about 256°, however other values of first andsecond angles - The table below displays, for illustrative purposes only, preferred parameters which may be used depending on the diameter of
thread 5. -
Thread Diameter 3.0 mm 4.0 mm 5.0 mm Double Thread yes yes yes Thread Pitch 0.7 mm 0.9 mm 1.0 mm Thread Depth 0.2025 mm 0.2575 mm 0.2810 mm (measured as ½ of outside/inside diameter-differential) Angular Range 200° 200° 190° (at upper surface) Angular Range (at 260° 240° 250° bone-contacting surface) Shape of Threaded Conical Conical Conical Portion - Referring to
FIG. 5 , combination hole 4C is shown with abone screw 11 received therein. The bone screw preferably has ascrew head 13 with athread 12 disposed thereon. As shown inFIG. 5 ,thread 12 may substantially matchthread 5 ofcombination hole 4C. Preferably,bone screw 12 is self-drilling and/or self-tapping. - While preferred embodiments and features of the present invention have been disclosed herein, it will be appreciated that numerous modifications and embodiments may be devised by those skilled in the art. It is intended that the appended claims cover all such modifications and embodiments as fall within the true spirit and scope of such claims and that the claims not be limited to or by such preferred embodiments or features.
Claims (28)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US13/151,975 US20110295325A1 (en) | 1999-03-09 | 2011-06-02 | Bone Plate |
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PCT/CH1999/000106 WO2000053110A1 (en) | 1999-03-09 | 1999-03-09 | Bone plate |
PCT/CH1999/000107 WO2000053111A1 (en) | 1999-03-09 | 1999-03-09 | Bone plate with conical screw threads |
US09/946,974 US6719759B2 (en) | 1999-03-09 | 2001-09-06 | Bone plate |
US10/805,623 US7976570B2 (en) | 1999-03-09 | 2004-03-19 | Bone plate |
US13/151,975 US20110295325A1 (en) | 1999-03-09 | 2011-06-02 | Bone Plate |
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US10/805,623 Continuation US7976570B2 (en) | 1999-03-09 | 2004-03-19 | Bone plate |
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AT (1) | ATE274856T1 (en) |
AU (1) | AU756487B2 (en) |
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Cited By (15)
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US20100256687A1 (en) * | 2009-04-01 | 2010-10-07 | Merete Medical Gmbh | Fixation Device and Method of Use for a Ludloff Osteotomy Procedure |
WO2013085835A1 (en) * | 2011-12-07 | 2013-06-13 | Biomet C.V. | Reduced component bone plating system |
US8845697B2 (en) | 2011-04-01 | 2014-09-30 | DePuy Synthes Products, LLC | Posterior vertebral plating system |
US8940026B2 (en) | 2009-04-07 | 2015-01-27 | Merete Medical Gmbh | Apparatus for the constant-angle fixation and compression of a fracture or osteotomy of a bone |
US9103367B2 (en) | 2013-03-14 | 2015-08-11 | Imds Llc | Polyaxial locking interface |
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US9820787B2 (en) | 2009-04-07 | 2017-11-21 | Aristotech Industries Gmbh | Apparatus for the constant-angle fixation and compression of a fracture or osteotomy of a bone |
US9161795B2 (en) | 2009-12-22 | 2015-10-20 | Merete Medical Gmbh | Bone plate system for osteosynthesis |
US9433443B2 (en) | 2011-04-01 | 2016-09-06 | DePuy Synthes Products, Inc. | Posterior vertebral plating system |
US10045799B2 (en) | 2011-04-01 | 2018-08-14 | DePuy Synthes Products, Inc. | Posterior vertebral plating system |
US10959759B2 (en) | 2011-04-01 | 2021-03-30 | Depuy Synthesis Products, Inc. | Posterior vertebral plating system |
US8845697B2 (en) | 2011-04-01 | 2014-09-30 | DePuy Synthes Products, LLC | Posterior vertebral plating system |
US9668793B2 (en) | 2011-08-31 | 2017-06-06 | Aristotech Industries Gmbh | Anatomically customized plantar bone plate and bone plate system |
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US9474558B2 (en) | 2011-12-07 | 2016-10-25 | Biomet C.V. | Bone plate with screw hole arrangement |
US8632574B2 (en) | 2011-12-07 | 2014-01-21 | Biomet C.V. | Reduced component bone plating system |
US9788874B2 (en) | 2012-05-03 | 2017-10-17 | Aristotech Industries Gmbh | Bone plate system for osteosynthesis |
US9404525B2 (en) | 2013-03-14 | 2016-08-02 | Imds Llc | Polyaxial locking interface |
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US10024355B2 (en) | 2013-03-14 | 2018-07-17 | Imds Llc | Polyaxial locking interface |
US9545276B2 (en) | 2013-03-15 | 2017-01-17 | Aristotech Industries Gmbh | Fixation device and method of use for a lapidus-type plantar hallux valgus procedure |
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US10226287B2 (en) | 2014-03-31 | 2019-03-12 | Association For The Advancement Of Musculoskeletal | Bone plate with versatile screw holes |
US11517359B2 (en) | 2018-06-12 | 2022-12-06 | Olympus Terumo Biomaterials Corp. | Bone plate and bone plate kit |
US11389209B2 (en) | 2019-07-19 | 2022-07-19 | Medos International Sarl | Surgical plating systems, devices, and related methods |
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Also Published As
Publication number | Publication date |
---|---|
CN1149056C (en) | 2004-05-12 |
AU756487B2 (en) | 2003-01-16 |
ZA200001215B (en) | 2000-09-26 |
ES2224606T3 (en) | 2005-03-01 |
US20020045901A1 (en) | 2002-04-18 |
WO2000053110A1 (en) | 2000-09-14 |
TW580378B (en) | 2004-03-21 |
NZ513746A (en) | 2001-09-28 |
DK1158915T3 (en) | 2004-11-08 |
HK1039267B (en) | 2004-12-31 |
EP1158915B1 (en) | 2004-09-01 |
CA2367085C (en) | 2007-08-07 |
ATE274856T1 (en) | 2004-09-15 |
JP2002537937A (en) | 2002-11-12 |
EP1158915A1 (en) | 2001-12-05 |
CN1337863A (en) | 2002-02-27 |
DE59910412D1 (en) | 2004-10-07 |
CA2367085A1 (en) | 2000-09-14 |
US20040181228A1 (en) | 2004-09-16 |
HK1039267A1 (en) | 2002-04-19 |
MY133354A (en) | 2007-11-30 |
KR100604452B1 (en) | 2006-07-26 |
US6719759B2 (en) | 2004-04-13 |
KR20010108323A (en) | 2001-12-07 |
JP4121141B2 (en) | 2008-07-23 |
US7976570B2 (en) | 2011-07-12 |
AU2607199A (en) | 2000-09-28 |
PT1158915E (en) | 2005-01-31 |
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