US20020032445A1 - Intramedullary nail - Google Patents

Intramedullary nail Download PDF

Info

Publication number
US20020032445A1
US20020032445A1 US09/767,075 US76707501A US2002032445A1 US 20020032445 A1 US20020032445 A1 US 20020032445A1 US 76707501 A US76707501 A US 76707501A US 2002032445 A1 US2002032445 A1 US 2002032445A1
Authority
US
United States
Prior art keywords
bone
connector
nail member
portion
nail
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
US09/767,075
Other versions
US6406477B1 (en
Inventor
Hiroo Fujiwara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koi Inc
Zimmer Technology Inc
Original Assignee
Koi Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2000-231416 priority Critical
Priority to JP2000231416A priority patent/JP4278289B2/en
Application filed by Koi Inc filed Critical Koi Inc
Assigned to KOI INC. reassignment KOI INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FUJIWARA, HIROO
Publication of US20020032445A1 publication Critical patent/US20020032445A1/en
Publication of US6406477B1 publication Critical patent/US6406477B1/en
Application granted granted Critical
Assigned to ZIMMER TECHNOLOGY, INC. reassignment ZIMMER TECHNOLOGY, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ZIMMER, INC.
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical 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
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/74Devices for the head or neck or trochanter of the femur
    • A61B17/742Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck
    • A61B17/744Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck the longitudinal elements coupled to an intramedullary nail

Abstract

A lag screw for connecting a bone portion separated from the femur, by fracture, to the main portion thereof is fixedly secured in the separated bone portion and extends through main portion of the femur. A nail member is installed in the femur in order to fix the lag screw to the femur. The lag screw is secured in the nail member by a set screw inserted into an outer end of the nail member. In order to prevent the rotation of the separated bone portion about the lag screw, an auxiliary connector is inserted through the nail member between the lag screw and the set screw. The lag screw is clamped by the set screw via a spacer for transmitting a clamping force.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention [0001]
  • The present invention relates to an intramedullary nail used for an intramedullary nailing procedure. [0002]
  • 2. Description of the Related Art [0003]
  • The intramedullary nail is mainly used for treating a fracture of the proximal portion of the femur such as an intertrochanteric fracture or a subtrochanteric fracture by pulling the proximal bone portion, separated from the femur by the fracture, to the femur to compress and fix them. [0004]
  • The intramedullary nail includes a nail member inserted into the femur from one end thereof, and a lag screw extending through the nail member and connected to the bone portion separated by the fracture. The lag screw includes engaging means for engaging the separated bone portion at the forward end thereof, and is fixedly supported on the nail member by a set screw inserted into a threaded hole formed in the outer end of the nail member. The nail member is formed with a through hole extending diagonally across the proximal portion thereof so that the forward end of the lag screw inserted into the through hole may be screwed into the bone portion separated by fracture such as the caput of bone positioned at a diagonally upward side. [0005]
  • In the treatment of the fractured proximal portion of the femur, the first step is to insert the nail member in the proximal end of the femur and install it in the medullary cavity thereof. Then, a locking screw can be inserted, if necessary, such that it extends across the medullary cavity and the distal portion of the nail member thereby fixing the nail member at a predetermined position in the femur. As the next step, the engaging means (threaded portion) at the forward end of the lag screw is passed through the through hole of the nail member into the portion of the caput of bone positioned more proximal than the fractured portion thereby to secure the separated caput to the lag screw. After that, the separated caput of the femur is pulled by the lag screw in such a manner as to press the separated caput against the main portion of the femur. When the caput of the femur comes to be positioned adjacent to the main portion thereof, the set screw is inserted into a threaded fixing hole of the nail member so that the forward end of the set screw engages the peripheral surface of the lag screw thereby to secure the lag screw to the nail member. [0006]
  • However, the separated portion of the bone such as the fractured caput, which is secured only to a single bone connector such as a lag screw, is liable to rotate about the bone connector. The rotation of the separated bone portion hinders the separated bone portion from being coapted to the main portion of the bone. Therefore, this can result in a problem that the healing time of the fracture is increased or that the fracture line is displaced before the separated bone portion is coapted to the main portion. In the case where the degree of rotation is high, the muscle surrounding the separated portion of the bone such as the caput may be damaged. [0007]
  • In order to prevent such a rotation of a separated bone portion, it is required to connect the separated bone portion of the femur and the main portion thereof by additionally providing an auxiliary connector extending across the nail member to the separated bone portion. However, the auxiliary connector cannot pass across through the nail member because of the presence of a set screw extending longitudinally inside of the nail member from one end thereof for securing the bone connector to the nail member. [0008]
  • SUMMARY OF THE INVENTION
  • Accordingly, it is an object of the present invention to obviate the problem in the prior art described above to provide an intramedullary nail allowing a bone connector and an auxiliary connector to be inserted into a nail member for preventing the rotation of a bone portion separated from a main portion of a femur by fracture and located on the proximal side of the fractured portion, thereby to promote the healing of the fractured portion. [0009]
  • In order to achieve the object described above, in accordance with a first aspect of the present invention, there is provided an intramedullary nail which includes a bone connector for connecting a bone portion separated from a main portion of a bone by fracture to the main portion, the bone connector extending through the main portion and secured in the separated bone portion; a nail member installed in the main portion of the bone for fixing the bone connector to the main portion, the bone connector extending through the nail member; a set screw inserted into an outer end of the nail member for securing the bone connector in the nail member; an auxiliary connector extending through the nail member between the bone connector and the set screw; and a spacer for transmitting a clamping force from the set screw to the bone connector thereby to clamp the bone connector. [0010]
  • In accordance with a second aspect of the present invention, there is provided an intramedullary nail which includes a bone connector for connecting a bone portion separated from a main portion of a femur by fracture to the main portion, the bone connector extending through the main portion and secured in the separated bone portion; a nail member installed in the main portion of the femur for fixing the bone connector to the main portion, the bone connector slidably inserted through the nail member; a set screw inserted into a set hole for securing the bone connector in the nail member, the set hole formed in an outer end of the nail member and extending longitudinally of the nail member; an auxiliary connector extending through the nail member between the bone connector and the set screw; and a spacer for transmitting a clamping force from the set screw to the bone connector without interfering with the auxiliary connector, thereby to clamp the bone connector. [0011]
  • In accordance with a third aspect of the present invention, there is provided an intramedullary nail which includes a bone connector for connecting a bone portion separated from a main portion of a bone by fracture to the main portion, the bone connector extending through the main portion and secured in the separated bone portion; a nail member installed in the main portion of the bone for fixing the bone connector to the main portion, the bone connector extending through the nail member; a set screw inserted into an outer end of the nail member for securing the bone connector in the nail member; and an auxiliary connector extending through the nail member and arranged in a position where the auxiliary connector is free from the set screw. [0012]
  • In the intramedullary nail described above, the spacer includes two legs extending in spaced relation with each other, and the auxiliary connector extends through the nail member between the two legs. Preferably, the bone connector has grooves formed on a peripheral surface thereof for the two legs of the spacer to engage. [0013]
  • In the above-mentioned intrammedullary nail, the set screw may include a boss extending toward the spacer, which boss passes through the spacer to engage a groove formed on a peripheral surface of the auxiliary connector. [0014]
  • Since the auxiliary connector extending through the nail member between the bone connector and the set screw is provided and the spacer for transmitting the clamping force is interposed between the set screw and the bone connector, the auxiliary connector extending to the separated bone portion through the nail member prevents the rotation of the separated bone portion. Also, the clamping force of the set screw inserted to the outer end of the nail member is transmitted to the bone connector over the auxiliary connector via the spacer, thereby permitting the bone connector to be secured in the nail member.[0015]
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • The above and other objects, features, and advantages of the present invention will be made more apparent from the following description of the preferred embodiments thereof with reference to the accompanying drawings, wherein: [0016]
  • FIG. 1 is a partly sectional perspective view of one embodiment of an intramedullary nail according to the present invention; [0017]
  • FIG. 2 is a partly sectional view illustrating the whole intramedullary nail shown in FIG. 1 used to fix the fractured portions of the femur; [0018]
  • FIG. 3 is a sectional view of the nail member shown in FIG. 1; [0019]
  • FIG. 4 is a perspective view of one embodiment of a spacer for transmitting a clamping force; [0020]
  • FIG. 5 is a partly sectional view of the intramedullary nail for explaining the principle on which the clamping force is applied by a set screw to a lag screw via the spacer and by which the rotation of the lag screw is prevented; [0021]
  • FIG. 6 is a sectional view taken along line VI-VI of FIG. 5; and [0022]
  • FIG. 7 is a partly sectional perspective view of another embodiment of an intramedullary nail according to the present invention.[0023]
  • DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • Preferred embodiments of an intramedullary nail according to the present invention will be described below with reference to the accompanying drawings. [0024]
  • FIG. 1 is a partly sectional perspective view of one embodiment of an intramedullary nail according to the present invention, and FIG. 2 is a partly sectional view illustrating the whole intramedullary nail shown in FIG. 1 used to fix the fractured portions of the femur. FIG. 3 is a sectional view of the nail member shown in FIG. 1. [0025]
  • Referring to FIGS. 1 and 2, the intramedullary nail [0026] 10 according to the present invention includes a rod-shaped nail member 16 inserted into the inner cavity (medullary cavity) 14 of a femur 12 from one end of the femur 12, and a lag screw 22, i.e. a bone connector for connecting to the main portion of the femur 12 a bone portion 20 separated from the main portion of the femur 12 by the fracture along a fracture line 18.
  • Specifically, referring to FIG. 3, the nail member [0027] 16 includes a proximal portion 16 b, an distal portion 16 c longer than the proximal portion 16 b, and a bent portion 16 a located at a boundary between them. As best shown in FIG. 3, the proximal portion 16 b is formed with two through holes, a main through hole 24 and an auxiliary through hole 26, extending in parallel diagonally across the nail member 16 in the neighborhood of the bent portion 16 a of the nail member 16. The proximal portion 16 b of the nail member 16 is formed in a large size sufficient to accommodate the through holes 24, 26, while the distal portion 16 c is formed in a small size suitable for the shape of the inner cavity (medullary cavity) 14 of the femur 12 in order to facilitate the insertion of the distal portion 16 into it. Fixing through holes 28 extending orthogonal to the axis of the distal portion 16 c are formed at an end of the distal portion 16 c of the nail member 16. Locking screws 30 are inserted across the shaft of the femur 12 (the body of the femur 12) into the fixing through holes 28 in order to securely fix the nail member 16 to the shaft of the femur 12.
  • In the embodiment of the intramedullary nail [0028] 10 shown in FIGS. 1 and 2, the bone connector is the lag screw 22. The lag screw 22 has engaging means 32 such as a threaded portion at the forward end thereof for engaging the bone portion 20 separated from the main portion of the femur 12, and the proximal portion of the lag screw 22 is formed with a plurality of grooves 34 extending on the peripheral surface thereof along the axis of the lag screw 22 (in the lag screw 22 shown in FIGS. 1 and 2, four grooves 34 are disposed on the peripheral surface of the lag screw 22 at intervals of 90° around the axis of the lag screw 22). The lag screw 22 is inserted into the femur 12 with the engaging means 32 thereof directed ahead, and further slidably inserted into the main through hole 24 of the nail member 16 thereby to penetrate into the separated bone portion 22. Thus, the lag screw 22 is fixedly secured in the separate bone portion 20 by causing the engaging means 32 at one end of the lag screw to engage the separated bone portion 20. Finally, the separated bone portion 20 is fixed to the main portion of the femur 12 by securing the other end of the lag screw 22 to the main through hole 24 of the nail member 16 installed in the femur 12.
  • The intramedullary nail [0029] 10 according to the present invention further includes an auxiliary connector 36 slidably inserted through an auxiliary through hole 26 located in the nail member 10 as shown in FIGS. 1 and 2. The auxiliary connector 36, like the lag screw 22, i.e. the bone connector, is arranged in such a position as to pass through the main portion of the femur 12 while being passed into the separated bone portion 20 thereof.
  • The auxiliary connector [0030] 36 and the bone connector arranged in this way form two fixed axles extending from the nail member 16 to the separated bone portion 20 thereby to prevent the separated bone portion 20 from rotating about the bone connector (the lag screw 22). However, the auxiliary connector 36 can be used for other purposes than preventing the rotation of the separated bone portion 20.
  • A set hole [0031] 38, which extends longitudinally in the nail member 16 from one end thereof across the auxiliary through hole 26 to the main through hole 24 and has at least a portion threaded, is formed at the outer end (proximal end) of the nail member 16. A set screw 42 is screwed into the set hole 38 for applying the clamping force to the lag screw 22 inserted into the main through hole 24.
  • Further, in order to allow a guide rod (not shown) to be used for facilitating the insertion into the inner cavity [0032] 14 of the femur 12, an inner hole for the guide rod 44 may be formed along the longitudinal axis of the nail member 16 as shown in FIG. 3. In such a case, the set hole 38 in the proximal portion 16 b of the nail member 16 constitutes a part of the inner hole for the guide rod 44.
  • In the intramedullary nail [0033] 10 according to the present invention, the auxiliary connector 36 extends through the nail member 16 at a location between the set screw 42 screwed into the outer end of the nail member 16 and the lag screw 22, i.e. a bone connector. Therefore, in order to allow the set screw 42 to apply a clamping force to the lag screw 22 over the auxiliary connector 36, a spacer 46 for transmitting a clamping force is interposed between the set screw 42 and the lag screw 22.
  • FIG. 4 is a perspective view of one embodiment of the spacer [0034] 46. FIG. 5 is a partly sectional view of the intramedullary nail for explaining the principle on which the clamping force is applied by the set screw to the lag screw 22 via the spacer 46 and the rotation of the lag screw 22 is prevented. FIG. 6 is a sectional view taken along line VI-VI of FIG. 5.
  • The spacer [0035] 46 shown in FIG. 4 includes a body 46 a and two legs 46 b extending from the body 46 a in spaced relation with each other.
  • As shown in FIG. 5, when the set screw [0036] 42 is placed on the spacer 46 inserted into the set hole 38 and is screwed into it, the set screw 42 engaged with the threaded portion of the set hole 38 abuts against the body 46 a. Thus, the set screw 42 pushes down the whole of the spacer 46 and the lower ends of the legs 46 b come into engagement with the grooves 34 of the lag screw 22, thereby securing the lag screw 22 in the nail member 16 while at the same time preventing the rotation of the lag screw 22. Even in the case where the grooves 34 are not formed on the periphery surface of the lag screw 22, the lag screw 22 can be secured in the nail member 16 by being clamped between the nail member 16 (particularly the surface of the main through hole 24) and the spacer 46 due to the friction between the lower ends of the legs 46 b of the spacer 46 and the peripheral surface of the lag screw 22.
  • The auxiliary connector [0037] 36 inserted into the auxiliary through hole 26, on the other hand, can pass through the nail member 16 by way of the space defined between the two spaced legs 46 b of the spacer 46. As shown in FIG. 5, preferably, the diameter of the portion of the set hole 38 in the neighborhood of the main through hole 24 is rendered smaller than that of the portion thereof engaged by the set screw 42, and guide grooves 48 for the legs 46 b are formed on the inner surface of the set hole 38 as shown in FIG. 6. Such guide grooves 48 can prevent the spacer 46 from being rotated by the rotation of the set screw 42 when the set screw 42 is screwed into the set hole 38. Also, the portion of the set hole 38 where the diameter thereof changes defines a shoulder 50 as shown in FIG. 3, thereby limiting the downward movement of the body 46 a of the spacer 46. Thus, the movable range of the spacer 46 is limited such that the lower ends of the legs 46 b are suspended in the main through hole 24 even when the spacer 46 moves to its lowest position. This enables the forward end of the leg screw 22 to come into contact with the legs 46 b of the spacer 46 during the insertion of the lag screw 22, thereby moving the spacer 46 upward.
  • In the case where it is desirable to securely hold the auxiliary connector [0038] 26 in the nail member 16, a boss 52 may be formed at the forward end of the set screw 42 and inserted through an opening 54 formed in the body 46 a of the spacer 46 to abut against the auxiliary connector 36, as shown in FIG. 1. In this way, the set screw 42 is inserted in the set hole 38 and engaged with the threaded portion thereof, so that the boss 52 of the set screw 42 comes into contact with the auxiliary connector 36, which makes it possible to securely hold the auxiliary connector 36 in the nail member 16. Further, in order to prevent the rotation of the auxiliary connector 36, a longitudinally extending groove may be formed on the auxiliary connector 36 to be engaged by the boss 52 of the set screw 42.
  • FIG. 7 is a perspective view of another embodiment of an intramedullary nail [0039] 10 according to the present invention which is similar to that shown in FIG. 1 except that the bone connector is of such a type that the compression force can be easily exerted on the separated portion of bone.
  • The bone connector shown in FIG. 7 includes a sleeve [0040] 56 inserted into the main through hole 24 of the nail member 16, and the lag screw 22 is inserted into the sleeve 56. The proximal end of the lag screw 22 is formed with a threaded hole (not shown) in the axial direction, and the forward end of the pulling screw 58 for pulling the lag screw 22 is inserted into the same threaded hole. The head of the proximal end of the pulling screw 58 is in contact with the annular shoulder formed on the inner surface of the proximal end of the sleeve 56. By rotating the pulling screw 58, the lag screw 22 can be pulled in such a direction as to pull the separated bone portion 20 toward the remainder (main portion) of the femur 12 and apply a compression force to it. The peripheral surface of the sleeve 56 shown in FIG. 7 is serrated to enhance a frictional engagement with the spacer 46. Alternatively, the peripheral surface of the sleeve 56 can of course be formed with grooves, like the lag screw 22 shown in FIG. 1, which are adapted to engage the legs 46 b of the spacer 46.
  • Components of the intramedullary nail described above are preferably made of pure titanium, a titanium alloy, the cobalt-nickel alloy or a similar biocompatible material. [0041]
  • In the shown embodiment, the spacer [0042] 46 is shown as a separate member from the set screw 42. However, the set screw 42 and the spacer 46 may be integrated with each other.
  • A method of using the intramedullary nail [0043] 10 shown in FIG. 1 will be now described.
  • The femur [0044] 12, as shown in FIG. 2, includes a caput 60 at an end thereof and an inner cavity (medullary cavity) 14 in the shaft thereof. The fracture related to the caput 60 of the femur 12 is liable to occur in the neck portion of caput 60 having a thin root, for example, at the position indicated by the fracture line 18 shown in FIG. 2. In the case of such a fracture, if the separated bone portion (caput 60) is fixed by a single bone connector like the lag screw 22 as in the prior art, the separated bone portion 20 could rotate about the bone connector (i.e. the lag screw 22), often having an adverse effect on the healing of the fractured portion. In view of this, the intramedullary nail 10 according to the invention is provided with an auxiliary connector 36 substantially parallel to the axis of a bone connector, and the separated bone portion 20 and the main portion of the femur 12 are connected and fixed to each other by use of these two connectors.
  • First, after a guide rod (not shown) is inserted into the femur [0045] 12 along the inner cavity 14 thereof, a hole is formed in the femur 12 by drilling along the guide rod. The nail member 16 is inserted into the inner cavity 14 while being guided by the guide rod until it reaches a predetermined position as shown in FIG. 2. Then, by passing the locking screws 30 across the shaft of the femur 12 through the fixing through holes 28, the nail member 16 is fixed at a predetermined position of the femur 12. After the nail member 16 is fixed at a predetermined position, the guide rod is removed from the inner cavity 14 of the femur 12.
  • As the next step, a guide pin (not shown) is inserted from the side wall of the femur [0046] 12 into the forward end of the caput 60 across the femur 12 through the main through hole 24 of the nail member 16. After drilling a hole in the femur 12 along the guide pin, the lag screw 22 is inserted into the femur 12 through the main through hole 24 of the nail member 16 with the engaging means (threaded portion) 32 of the lag screw 22 directed forward while being guided by the guide pin until the engaging means 32 of the lag screw 22 reaches the separated bone portion 20 (caput 60). Thus, the lag screw 22 is fixedly secured in (engaged with) the bone portion 20 by the engaging means 32. After that, the lag screw 22 is pulled in such a direction that the engaging means 32 approaches the nail member 16 to compress the fractured portions, and the separated bone portion 20 is pulled into close proximity with the main portion of the femur 12.
  • As the next step, in order to prevent the separated bone portion from rotating about the lag screw [0047] 22, the auxiliary connector 36 is screwed from the side wall of the femur 12 across the femur 12 and through the auxiliary through hole 26 of the nail member 16 to the bone portion 20. As a result, the nail member 16 installed in the shaft of the femur 12 and the separated bone portion 20 are connected to each other by the two connectors, i.e. the bone connector (lag screw 22) and the auxiliary connector 36, with the result that the separated bone portion 20 cannot rotate.
  • As the last step, the spacer [0048] 46 is inserted into the set hole 38 formed at the outer end of the nail member 16, and the set screw 42 is screwed over the spacer 46. In the process, the auxiliary connector 36 extending laterally through the nail member 16 is adapted to pass between the legs 46 b of the spacer 46. By tightening the set screw 42, the legs 46 b of the spacer 46 are forced to come into engagement with the grooves 34 of the lag screw 22, so that the lag screw 22 is securely held in the nail member 16 while the rotation of the lag screw 22 is prevented. Specifically, in the intramedullary nail 10 according to the invention, the clamping force of the set screw 42 is transmitted to the lag screw 22 over the auxiliary connector 36 extending across the nail member 16 between the set screw 42 and the lag screw 22 by way of the spacer 46 thereby to secure the lag screw 22 in the nail member 16. The legs 46 b of the spacer 46 are guided along the guide grooves 48 formed in the inner surface of the set hole 38. Therefore, the legs 46 b of the spacer 46, which cannot be rotated by rotation of the set screw 42, never interfere with the auxiliary connector 36. The guide pin is removed after the lag screw 22 is secured in the nail member 16.
  • As described above, the intramedullary nail prevents the rotation of the separated bone portion [0049] 20 (caput 60) and the relative displacement of the fractured portions before the separated bone portion 20 and the main portion of the femur 12 are fixed and the fractured portions are successfully coapted to each other.
  • The present invention was described above with reference to the intramedullary nail [0050] 10 used for fixing the fractured portions positioned in the neighborhood of the caput 60 of the femur 12 as an example. However, the present invention is equally applicable to any intramedullary nail for fixing fractured portions positioned in the neighborhood of the caput of other bones such as the humerus.
  • In addition, another type of an intramedullary nail can achieve the effect of preventing a rotation of a separated bone portion. One embodiment of this type of the intramedullary nail may include a bone connector extending through a femur to a bone portion separated from a main portion of the femur and secured to the separated bone portion for connecting the separated bone portion to the main portion of the femur, a nail member through which the bone connector extends and which is installed in the femur for fixing the bone connector to the main portion of the femur, a set screw inserted into an outer end of the nail member for securing the bone connector to the nail member, and an auxiliary connector extending through the nail member and arranged in a position where the auxiliary connector is free from the set screw (for example, under the bone connector or in a position farther away from the set screw than the bone connector). [0051]
  • It will thus be understood from the foregoing description that, according to the present invention, a separated bone portion can be fixed to a main portion of the femur by two connectors, i.e. a bone connector and an auxiliary connector, and therefore the fractured portions are not displaced by the rotation of the separated bone portion, thereby making it possible to promote the healing of the fracture. Also, since a clamping force of the set screw can be applied to the bone connector by a spacer for transmitting the clamping force over the auxiliary connector extending across the nail member at a position between the set screw and the bone connector, secure holding of the bone connector in the nail member is not sacrificed. [0052]

Claims (7)

What is claimed is:
1. An intramedullary nail comprising:
a bone connector for connecting a bone portion separated from a main portion of a bone by fracture to said main portion, said bone connector extending through said main portion and secured in said separated bone portion;
a nail member installed in said main portion of said bone for fixing said bone connector to said main portion, said bone connector extending through said nail member;
a set screw inserted into an outer end of said nail member for securing said bone connector in said nail member;
an auxiliary connector extending through said nail member between said bone connector and said set screw; and
a spacer for transmitting a clamping force from said set screw to said bone connector thereby to clamp said bone connector.
2. The intramedullary nail according to claim 1, wherein said spacer includes two legs extending in spaced relation to each other, and wherein said auxiliary connector extends through said nail member between said two legs.
3. The intramedullary nail according to claim 2, wherein said bone connector has grooves formed on a peripheral surface thereof for two legs of said spacer to engage.
4. The intramedullary nail according to claim 1, wherein said set screw includes a boss extending toward said spacer, said boss passing through said spacer to engage a groove formed on a peripheral surface of said auxiliary connector.
5. An intramedullary nail comprising:
a bone connector for connecting a bone portion separated from a main portion of a femur, by fracture, to said main portion, said bone connector extending through said main portion and secured in said separated bone portion;
a nail member installed in said main portion of said femur for fixing said bone connector to said main portion, said bone connector slidably inserted through said nail member;
a set screw inserted into a set hole for securing said bone connector in said nail member, said set hole formed in an outer end of said nail member and extending longitudinally of said nail member;
an auxiliary connector extending through said nail member between said bone connector and said set screw; and
a spacer for transmitting a clamping force from said set screw to said bone connector without interfering with said auxiliary connector, thereby to clamp said bone connector.
6. The intramedullary nail according to claim 5, wherein said spacer includes two legs extending in a spaced relation to each other, wherein said auxiliary connector extends through said nail member between said two legs, and wherein said bone connector has one or more groove(s) formed on a peripheral surface thereof for said two legs to engage.
7. An intramedullary nail comprising:
a bone connector for connecting a bone portion separated from a main portion of a bone by fracture to said main portion, said bone connector extending through said main portion and secured in said separated bone portion;
a nail member installed in said main portion of the bone for fixing said bone connector to said main portion, said bone connector extending through said nail member;
a set screw inserted into an outer end of said nail member for securing said bone connector in said nail member; and
an auxiliary connector extending through said nail member and arranged in a position where said auxiliary connector is free from said set screw.
US09/767,075 2000-07-27 2001-01-22 Intramedullary nail Active US6406477B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2000-231416 2000-07-27
JP2000231416A JP4278289B2 (en) 2000-07-27 2000-07-27 Intramedullary nail

Publications (2)

Publication Number Publication Date
US20020032445A1 true US20020032445A1 (en) 2002-03-14
US6406477B1 US6406477B1 (en) 2002-06-18

Family

ID=18724258

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/767,075 Active US6406477B1 (en) 2000-07-27 2001-01-22 Intramedullary nail

Country Status (5)

Country Link
US (1) US6406477B1 (en)
EP (1) EP1175872A3 (en)
JP (1) JP4278289B2 (en)
AU (1) AU1825201A (en)
CA (1) CA2337303A1 (en)

Cited By (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050055024A1 (en) * 2003-09-08 2005-03-10 James Anthony H. Orthopaedic implant and screw assembly
US20050069397A1 (en) * 2002-01-23 2005-03-31 Ronen Shavit Locking mechanism for intramedullary nails
US20050182402A1 (en) * 2002-04-04 2005-08-18 Henrik Hansson Device at medullary nails for fixation of bone fragments at bone fractures
US20060036248A1 (en) * 2004-07-01 2006-02-16 Ferrante Joseph M Fixation elements
US20070049938A1 (en) * 2005-08-31 2007-03-01 Wallace Matthew S Intramedullary nail assembly with locking component, locking component and nail for use therewith
US20070049939A1 (en) * 2005-08-31 2007-03-01 Wallace Matthew S Intramedullary nail assembly with sleeve and screw for use therewith
US20070219636A1 (en) * 2004-04-12 2007-09-20 Thakkar Navin N implant assembly for proximal femoral fracture
US20070233101A1 (en) * 2006-03-31 2007-10-04 Metzinger Anthony J Variable angle intramedullary nail, assembly and method
US20070233103A1 (en) * 2006-03-31 2007-10-04 Metzinger Anthony J Intramedullary nail, intramedullary nail assembly and method
US20070270845A1 (en) * 2003-09-08 2007-11-22 Kohsuke Watanabe Orthopaedic plate and screw assembly
US20070299447A1 (en) * 2003-09-08 2007-12-27 Kohsuke Watanabe Orthopaedic plate and screw assembly
US20080221623A1 (en) * 2005-10-17 2008-09-11 Gooch Hubert L Systems and Methods for the Medical Treatment of Structural Tissue
US20080249580A1 (en) * 2005-09-28 2008-10-09 Smith & Nephew, Inc. Methods and Instruments of Reducing a Fracture
US20080281326A1 (en) * 2007-03-20 2008-11-13 Kohsuke Watanabe Orthopaedic plate and screw assembly
US20090216283A1 (en) * 2005-03-01 2009-08-27 Hans-Georg Gradl Blocking device for a broken or cracked bone
US20090326534A1 (en) * 2008-06-30 2009-12-31 Depuy Products, Inc. Fracture Fixation Apparatus
US20100145337A1 (en) * 2007-02-28 2010-06-10 Smith & Nephew, Inc. Instrumented orthopaedic implant for identifying a landmark
US20100152566A1 (en) * 2007-02-28 2010-06-17 Smith & Nephew, Inc. System and method for identifying a landmark
US20100174284A1 (en) * 2008-10-15 2010-07-08 Zimmer, Gmbh Intramedullary nail
US20100179551A1 (en) * 2007-05-25 2010-07-15 Zimmer, Gmbh Reinforced intramedullary nail
US20100179550A1 (en) * 2007-05-23 2010-07-15 Ulrich Schreiber Intramedullary nail, particularly lockable intramedullary nail, and device for fixating the intramedullary nail in a hollow bone
US20100249781A1 (en) * 2009-03-31 2010-09-30 Depuy Products, Inc. Intramedullary nail with locking key
US20100256638A1 (en) * 2008-06-24 2010-10-07 Jeff Tyber Intraosseous intramedullary fixation assembly and method of use
US20100274256A1 (en) * 2009-04-27 2010-10-28 Smith & Nephew, Inc. System and Method for Identifying a Landmark
US20110144766A1 (en) * 2008-06-19 2011-06-16 Shreedhar Kale Allograft Bone Plugs, Systems and Techniques
US20110196370A1 (en) * 2008-11-06 2011-08-11 Synthes Usa, Llc One Way Sliding Device for Intramedullary Intertrochanteric Fixation Implants
US20110208037A1 (en) * 2008-02-28 2011-08-25 Smith & Nephew, Inc. System and method for identifying a landmark
US20110230884A1 (en) * 2008-06-24 2011-09-22 Adam Mantzaris Hybrid intramedullary fixation assembly and method of use
US20120123415A1 (en) * 2010-11-17 2012-05-17 Vienney Cecile Devices, Methods and Systems for Remedying or Preventing Fractures
US20120143192A1 (en) * 2009-06-30 2012-06-07 Kohsuke Watanabe Polyaxial fastener systems and methods
US20120157997A1 (en) * 2004-03-11 2012-06-21 Sohngen Gary W Fixation Instrument for Treating a Bone Fracture
USD674093S1 (en) 2009-08-26 2013-01-08 Smith & Nephew, Inc. Landmark identifier for targeting a landmark of an orthopaedic implant
US8449544B2 (en) 2009-06-30 2013-05-28 Smith & Nephew, Inc. Orthopaedic implant and fastener assembly
US20130204251A1 (en) * 2009-05-05 2013-08-08 Synthes Usa, Llc Nail locking systems
CN103402447A (en) * 2011-02-08 2013-11-20 史赛克创伤有限公司 Implant system for bone fixation
US8623023B2 (en) 2009-04-27 2014-01-07 Smith & Nephew, Inc. Targeting an orthopaedic implant landmark
USD704841S1 (en) 2009-08-26 2014-05-13 Smith & Nephew, Inc. Landmark identifier for targeting an orthopaedic implant
US8784425B2 (en) 2007-02-28 2014-07-22 Smith & Nephew, Inc. Systems and methods for identifying landmarks on orthopedic implants
US8890511B2 (en) 2011-01-25 2014-11-18 Smith & Nephew, Inc. Targeting operation sites
US8900274B2 (en) 2008-06-24 2014-12-02 Extremity Medical Llc Fixation system, an intramedullary fixation assembly and method of use
US8920453B2 (en) 2008-06-24 2014-12-30 Extremity Medical, Llc Fixation system, an intramedullary fixation assembly and method of use
US8920476B2 (en) 2008-06-24 2014-12-30 Extremity Medical, Llc Fixation system, an intramedullary fixation assembly and method of use
US9017329B2 (en) 2008-06-24 2015-04-28 Extremity Medical, Llc Intramedullary fixation assembly and method of use
CN104887303A (en) * 2015-06-29 2015-09-09 北京贝思达生物技术有限公司 PFNA (proximal femoral nail anti-rotation) intramedullary nail
US9168153B2 (en) 2011-06-16 2015-10-27 Smith & Nephew, Inc. Surgical alignment using references
US20150320461A1 (en) * 2014-05-07 2015-11-12 Acumed Llc Hip fixation with load-controlled dynamization
US9289220B2 (en) 2008-06-24 2016-03-22 Extremity Medical Llc Intramedullary fixation assembly and method of use
US9433448B2 (en) 2013-12-09 2016-09-06 Acumed Llc Nail-based compliant hip fixation system
US9433449B2 (en) 2012-04-13 2016-09-06 Orthopedic Designs North America, Inc Intramedullary nail system including tang-deployment screw with male interface
US9433451B2 (en) 2013-12-09 2016-09-06 Acumed Llc Hip fixation system with a compliant fixation element
US9463055B2 (en) 2013-12-09 2016-10-11 Acumed Llc Plate-based compliant hip fixation system
US9517094B1 (en) * 2014-05-09 2016-12-13 Savage Medical Design LLC Intramedullary fixation apparatus for use in hip and femur fracture surgery
US9539037B2 (en) 2010-06-03 2017-01-10 Smith & Nephew, Inc. Orthopaedic implants
AU2016200287B2 (en) * 2009-04-27 2018-02-01 Smith & Nephew Inc System and method for identifying a landmark
US20180078291A1 (en) * 2016-09-22 2018-03-22 Globus Medical, Inc. Systems and methods for intramedullary nail implantation
US10080596B2 (en) 2013-12-09 2018-09-25 Acumed Llc Hip fixation with load-controlled dynamization
US10092334B2 (en) * 2016-09-01 2018-10-09 Omic Corporation Femur fixation apparatus

Families Citing this family (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7938850B2 (en) * 2002-05-30 2011-05-10 Depuy Products, Inc. Nail plate
US6652529B2 (en) * 2001-09-12 2003-11-25 Todd V. Swanson Method and apparatus for treating supracondylar fractures of the femur
US6835197B2 (en) 2001-10-17 2004-12-28 Christoph Andreas Roth Bone fixation system
AU2003240245A1 (en) 2002-05-14 2003-11-11 Tantum Ag Osteosynthesis device
US20060206044A1 (en) 2002-08-10 2006-09-14 Simon Willliam H Method and apparatus for repairing the mid-food region via an intramedullary nail
US7632272B2 (en) * 2002-10-03 2009-12-15 Synthes Usa, Llc Device for bone fixation
AT400229T (en) * 2002-11-04 2008-07-15 Zimmer Gmbh The bone fixation system
FR2847454B1 (en) * 2002-11-21 2005-09-30 Evolutis Orthopedic together especially for trochanteric-diaphyseal fractures
JP4602338B2 (en) * 2003-05-17 2010-12-22 デピュー インターナショナル リミテッド Intramedullary nail assembly
DE20309399U1 (en) 2003-06-18 2003-08-28 Stryker Trauma Gmbh Bone nail, especially proximal femoral nail
US7179260B2 (en) 2003-09-29 2007-02-20 Smith & Nephew, Inc. Bone plates and bone plate assemblies
US7601153B2 (en) * 2003-12-25 2009-10-13 Homs Engineering Inc. Intramedullary nail
AU2005208810A1 (en) 2004-01-23 2005-08-11 Hand Innovations, Llc System for stabilization of fractures of convex articular bone surfaces including subchondral support structure
US7780710B2 (en) 2004-01-23 2010-08-24 Depuy Products, Inc. System for stabilization of fractures of convex articular bone surfaces including subchondral support structure
CA2558495C (en) * 2004-03-03 2012-05-15 Synthes Gmbh Bone fixation means
US7896886B2 (en) * 2005-01-28 2011-03-01 Depuy Products, Inc. Nail plate and implantation jig therefor
US7232442B2 (en) 2005-02-22 2007-06-19 Advanced Orthopaedic Solutions Humeral nail
KR200392672Y1 (en) * 2005-05-12 2005-08-17 김진곤 Apparatus for the prevention of distal migration of lag screw for a surgical operation in hip fracture
US20060264951A1 (en) 2005-05-18 2006-11-23 Nelson Charles L Minimally Invasive Actuable Bone Fixation Devices Having a Retractable Interdigitation Process
US8961516B2 (en) 2005-05-18 2015-02-24 Sonoma Orthopedic Products, Inc. Straight intramedullary fracture fixation devices and methods
US9060820B2 (en) 2005-05-18 2015-06-23 Sonoma Orthopedic Products, Inc. Segmented intramedullary fracture fixation devices and methods
US20070011049A1 (en) * 2005-07-09 2007-01-11 Eder Jeffrey S Intelligent, personalized commerce chain
US20070049940A1 (en) 2005-08-31 2007-03-01 Wallace Matthew S Intramedullary nail assembly with fixed securement and associated method
US7955358B2 (en) 2005-09-19 2011-06-07 Albert Todd J Bone screw apparatus, system and method
WO2008001324A2 (en) * 2006-06-30 2008-01-03 O.S.P. Ortho Service Provider S.R.L. Locking device for intramedullary nails and intramedullary nail including such device
AU2007323566A1 (en) 2006-11-22 2008-05-29 Sonoma Orthopedic Products, Inc. Fracture fixation device, tools and methods
US8317845B2 (en) * 2007-01-19 2012-11-27 Alexa Medical, Llc Screw and method of use
US7909882B2 (en) * 2007-01-19 2011-03-22 Albert Stinnette Socket and prosthesis for joint replacement
US9308031B2 (en) 2007-01-26 2016-04-12 Biomet Manufacturing, Llc Lockable intramedullary fixation device
US8303590B2 (en) * 2007-01-26 2012-11-06 Ebi, Llc Lockable intramedullary fixation device
US9320551B2 (en) * 2007-01-26 2016-04-26 Biomet Manufacturing, Llc Lockable intramedullary fixation device
US8157802B2 (en) * 2007-01-26 2012-04-17 Ebi, Llc Intramedullary implant with locking and compression devices
BRPI0813156A2 (en) * 2007-06-22 2014-12-23 Anthem Orthopaedics Van Llc Intramedular stem with pivot holder and method for use
JP5477867B2 (en) * 2007-10-16 2014-04-23 バイオメット マニュファクチャリング,エルエルシー Orthopedic screw system
JP5100357B2 (en) * 2007-12-18 2012-12-19 株式会社オーミック Bone anchor
JP4374050B2 (en) * 2007-12-28 2009-12-02 公資 田部 Intramedullary nail and control member used for the same
US8114079B2 (en) * 2008-03-31 2012-02-14 Depuy Products, Inc. Intramedullary nail with coupled shafts
AU2009257472A1 (en) 2008-06-10 2009-12-17 Sonoma Orthopedic Products, Inc. Fracture fixation device, tools and methods
WO2010037038A2 (en) 2008-09-26 2010-04-01 Sonoma Orthopedic Products, Inc. Bone fixation device, tools and methods
US8790343B2 (en) 2008-10-11 2014-07-29 Epix Orthopaedics, Inc. Intramedullary rod with pivotable and fixed fasteners and method for using same
JP5291719B2 (en) * 2008-10-31 2013-09-18 株式会社ロバート・リード商会 Bone fixation member and femoral fixation system
DE102009010328A1 (en) * 2009-02-25 2010-08-26 Dieter Marquardt Medizintechnik Gmbh Humerus nail for supporting fractures of humerus of patient, has retainer provided in stabilization element to retain section of fixing elements arranged in one of boreholes for connecting stabilization element with fixing elements
US8449578B2 (en) * 2009-11-09 2013-05-28 Ebi, Llc Multiplanar bone anchor system
US9044272B2 (en) 2009-11-09 2015-06-02 Ebi, Llc Multiplanar bone anchor system
WO2011072249A1 (en) 2009-12-11 2011-06-16 Small Bone Innovations, Inc. Ankle fusion device, instrumentation and methods
JP5345564B2 (en) * 2010-01-20 2013-11-20 クロスト株式会社 Medical instruments
US8652136B2 (en) 2011-08-15 2014-02-18 Zimmer, Gmbh Femoral fracture fixation device
JP6247644B2 (en) 2012-02-08 2017-12-13 エピックス オーソペディックス インコーポレイテッド Implant insertion device having a continuously adjustable targeting assembly
JP6058958B2 (en) * 2012-09-24 2017-01-11 株式会社ホムズ技研 Intramedullary fixation system
US9320555B2 (en) 2013-01-31 2016-04-26 Stryker European Holdings I, Llc Modular lag screw
US10123828B2 (en) 2013-03-15 2018-11-13 Epix Orthopaedics, Inc. Implantable device with pivotable fastener and self-adjusting set screw
US9369921B2 (en) 2013-05-31 2016-06-14 Liveu Ltd. Network assisted bonding
JP2015073843A (en) * 2013-10-11 2015-04-20 株式会社オーミック Thighbone fixing device
JP5914771B2 (en) * 2013-10-11 2016-05-11 プロスパー株式会社 Osteosynthesis and osteosynthesis
US9770278B2 (en) 2014-01-17 2017-09-26 Arthrex, Inc. Dual tip guide wire
US9814499B2 (en) 2014-09-30 2017-11-14 Arthrex, Inc. Intramedullary fracture fixation devices and methods
WO2016174720A1 (en) * 2015-04-27 2016-11-03 プロスパー株式会社 Bone connector
CN105395244A (en) * 2015-11-23 2016-03-16 赵文 Femoral intramedullary nail device
US9895177B2 (en) 2016-01-15 2018-02-20 ARTHREX, GmbH Bone fixation device for treatment of femoral fractures
CN106073877A (en) * 2016-07-14 2016-11-09 闻泰医疗科技(上海)有限公司 Intramedullary fixing device for proximal end of femur
JP6434477B2 (en) * 2016-12-08 2018-12-05 株式会社ホムズ技研 Intramedullary fixation system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH666176A5 (en) * 1984-11-30 1988-07-15 Straumann Inst Ag Means for treatment of a bone and brand of such a body.
US4827917A (en) * 1986-12-30 1989-05-09 Richards Medical Company Fermoral fracture device
US5312406A (en) * 1986-12-30 1994-05-17 Smith & Nephew Richards Inc. Method of treating an intertrochanteric fracture
US5176681A (en) 1987-12-14 1993-01-05 Howmedica International Inc. Intramedullary intertrochanteric fracture fixation appliance and fitting device
US5032125A (en) * 1990-02-06 1991-07-16 Smith & Nephew Richards Inc. Intramedullary hip screw
FR2698261B1 (en) 1992-11-24 1995-03-17 Lacaffiniere Jean Yves De Device for guiding a double screw to the femoral neck-shaft locked trochanteric nail.
IT242435Y1 (en) * 1996-10-24 2001-06-14 Hit Medica Srl Chiodo for the reduction of trochanteric fractures and delfemore neck.
US6106528A (en) * 1997-02-11 2000-08-22 Orthomatrix, Inc. Modular intramedullary fixation system and insertion instrumentation
EP1342453B1 (en) * 1997-03-19 2005-08-24 Stryker Trauma GmbH Modular intramedullary nail
JP3311660B2 (en) 1997-11-12 2002-08-05 瑞穂医科工業株式会社 Intramedullary nail
US6123708A (en) * 1999-02-03 2000-09-26 Pioneer Laboratories, Inc. Intramedullary bone fixation rod
US6235031B1 (en) * 2000-02-04 2001-05-22 Encore Medical Corporation Intramedullary fracture fixation device

Cited By (111)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050069397A1 (en) * 2002-01-23 2005-03-31 Ronen Shavit Locking mechanism for intramedullary nails
US20050182402A1 (en) * 2002-04-04 2005-08-18 Henrik Hansson Device at medullary nails for fixation of bone fragments at bone fractures
US20070299447A1 (en) * 2003-09-08 2007-12-27 Kohsuke Watanabe Orthopaedic plate and screw assembly
US20050149024A1 (en) * 2003-09-08 2005-07-07 Joseph Ferrante Orthopaedic implant and screw assembly
US8187275B2 (en) 2003-09-08 2012-05-29 Smith & Nephew, Inc. Orthopaedic implant and fastening assembly
US20050055024A1 (en) * 2003-09-08 2005-03-10 James Anthony H. Orthopaedic implant and screw assembly
US8298234B2 (en) 2003-09-08 2012-10-30 Smith & Nephew, Inc. Orthopaedic implant and fastener assembly
US8105326B2 (en) 2003-09-08 2012-01-31 Smith & Nephew, Inc. Orthopaedic implant and fastener assembly
US8617161B2 (en) 2003-09-08 2013-12-31 Smith & Nephew, Inc. Orthopaedic plate and fastener assembly
US7931652B2 (en) 2003-09-08 2011-04-26 Smith & Nephew, Inc. Orthopaedic plate and screw assembly
US20070270845A1 (en) * 2003-09-08 2007-11-22 Kohsuke Watanabe Orthopaedic plate and screw assembly
US20090209961A1 (en) * 2003-09-08 2009-08-20 Smith & Nephew, Inc., A Delaware Corporation Orthopaedic implant and fastener assembly
US20110087228A1 (en) * 2003-09-08 2011-04-14 Smith & Nephew, Inc. Orthopaedic Plate and Fastener Assembly
US20080188853A1 (en) * 2003-09-08 2008-08-07 Joseph Ferrante Orthopaedic implant and fastening assembly
US20110060337A1 (en) * 2003-09-08 2011-03-10 Smith & Nephew, Inc. Orthopaedic Implant and Fastener Assembly
US7883509B2 (en) 2003-09-08 2011-02-08 Smith & Nephew, Inc. Orthopaedic implant and screw assembly
US7799030B2 (en) 2003-09-08 2010-09-21 Smith & Nephew, Inc. Orthopaedic plate and screw assembly
US7527627B2 (en) 2003-09-08 2009-05-05 Smith & Nephew, Inc. Orthopaedic implant and screw assembly
US7534244B2 (en) 2003-09-08 2009-05-19 Smith & Nephew, Inc. Orthopaedic plate and screw assembly
US7780667B2 (en) 2003-09-08 2010-08-24 Smith & Nephew, Inc. Orthopaedic plate and screw assembly
US20120157997A1 (en) * 2004-03-11 2012-06-21 Sohngen Gary W Fixation Instrument for Treating a Bone Fracture
US8702707B2 (en) * 2004-03-11 2014-04-22 Gary W. Sohngen Fixation instrument for treating a bone fracture
US8734448B2 (en) * 2004-04-12 2014-05-27 Navin N Thakkar Implant assembly for proximal femoral fracture
US20070219636A1 (en) * 2004-04-12 2007-09-20 Thakkar Navin N implant assembly for proximal femoral fracture
US20060036248A1 (en) * 2004-07-01 2006-02-16 Ferrante Joseph M Fixation elements
US8454605B2 (en) * 2005-03-01 2013-06-04 M.O.R.E. Medical Solutions Gmbh Blocking device for a broken or cracked bone
US20090216283A1 (en) * 2005-03-01 2009-08-27 Hans-Georg Gradl Blocking device for a broken or cracked bone
US20070049938A1 (en) * 2005-08-31 2007-03-01 Wallace Matthew S Intramedullary nail assembly with locking component, locking component and nail for use therewith
US20070049939A1 (en) * 2005-08-31 2007-03-01 Wallace Matthew S Intramedullary nail assembly with sleeve and screw for use therewith
US20080249580A1 (en) * 2005-09-28 2008-10-09 Smith & Nephew, Inc. Methods and Instruments of Reducing a Fracture
US20100185244A1 (en) * 2005-10-17 2010-07-22 Gooch Hubert L Systems and methods for the medical treatment of structural tissue
US20080221623A1 (en) * 2005-10-17 2008-09-11 Gooch Hubert L Systems and Methods for the Medical Treatment of Structural Tissue
US20070270846A1 (en) * 2006-03-31 2007-11-22 Metzinger Anthony J Fixture, intramedullary nail kit and method of presetting a nail assembly
US20070233101A1 (en) * 2006-03-31 2007-10-04 Metzinger Anthony J Variable angle intramedullary nail, assembly and method
US20070233103A1 (en) * 2006-03-31 2007-10-04 Metzinger Anthony J Intramedullary nail, intramedullary nail assembly and method
US8739801B2 (en) 2007-02-28 2014-06-03 Smith & Nephew, Inc. System and method for identifying a landmark
US8814868B2 (en) * 2007-02-28 2014-08-26 Smith & Nephew, Inc. Instrumented orthopaedic implant for identifying a landmark
US20100152566A1 (en) * 2007-02-28 2010-06-17 Smith & Nephew, Inc. System and method for identifying a landmark
US8784425B2 (en) 2007-02-28 2014-07-22 Smith & Nephew, Inc. Systems and methods for identifying landmarks on orthopedic implants
US20100145337A1 (en) * 2007-02-28 2010-06-10 Smith & Nephew, Inc. Instrumented orthopaedic implant for identifying a landmark
US7918853B2 (en) 2007-03-20 2011-04-05 Smith & Nephew, Inc. Orthopaedic plate and screw assembly
US20110238121A1 (en) * 2007-03-20 2011-09-29 Smith & Nephew, Inc. Orthopaedic plate and screw assembly
US8939978B2 (en) 2007-03-20 2015-01-27 Smith & Nephew, Inc. Orthopaedic plate and screw assembly
US20080281326A1 (en) * 2007-03-20 2008-11-13 Kohsuke Watanabe Orthopaedic plate and screw assembly
US20100179550A1 (en) * 2007-05-23 2010-07-15 Ulrich Schreiber Intramedullary nail, particularly lockable intramedullary nail, and device for fixating the intramedullary nail in a hollow bone
US9743964B2 (en) * 2007-05-23 2017-08-29 Ot Medizintechnik Gmbh Intramedullary nail, particularly lockable intramedullary nail, and device for fixating the intramedullary nail in a hollow bone
US9597129B2 (en) 2007-05-25 2017-03-21 Zimmer Gmbh Reinforced intramedullary nail
US20100179551A1 (en) * 2007-05-25 2010-07-15 Zimmer, Gmbh Reinforced intramedullary nail
US20110208037A1 (en) * 2008-02-28 2011-08-25 Smith & Nephew, Inc. System and method for identifying a landmark
US9775649B2 (en) 2008-02-28 2017-10-03 Smith & Nephew, Inc. System and method for identifying a landmark
US9220514B2 (en) 2008-02-28 2015-12-29 Smith & Nephew, Inc. System and method for identifying a landmark
US8840677B2 (en) * 2008-06-19 2014-09-23 DePuy Synthes Products, LLC Allograft bone plugs, systems and techniques
US20110144766A1 (en) * 2008-06-19 2011-06-16 Shreedhar Kale Allograft Bone Plugs, Systems and Techniques
US20100256638A1 (en) * 2008-06-24 2010-10-07 Jeff Tyber Intraosseous intramedullary fixation assembly and method of use
US8920476B2 (en) 2008-06-24 2014-12-30 Extremity Medical, Llc Fixation system, an intramedullary fixation assembly and method of use
US8920453B2 (en) 2008-06-24 2014-12-30 Extremity Medical, Llc Fixation system, an intramedullary fixation assembly and method of use
US8900274B2 (en) 2008-06-24 2014-12-02 Extremity Medical Llc Fixation system, an intramedullary fixation assembly and method of use
US20110230884A1 (en) * 2008-06-24 2011-09-22 Adam Mantzaris Hybrid intramedullary fixation assembly and method of use
US20150173811A1 (en) * 2008-06-24 2015-06-25 Extremity Medical, Llc Fixation System, An Intramedullary Fixation Assembly and Method of Use
US9289220B2 (en) 2008-06-24 2016-03-22 Extremity Medical Llc Intramedullary fixation assembly and method of use
US9017329B2 (en) 2008-06-24 2015-04-28 Extremity Medical, Llc Intramedullary fixation assembly and method of use
US9044282B2 (en) 2008-06-24 2015-06-02 Extremity Medical Llc Intraosseous intramedullary fixation assembly and method of use
US20090326534A1 (en) * 2008-06-30 2009-12-31 Depuy Products, Inc. Fracture Fixation Apparatus
US8100911B2 (en) * 2008-06-30 2012-01-24 Depuy Products, Inc. Fracture fixation apparatus
US8668695B2 (en) 2008-10-15 2014-03-11 Zimmer Gmbh Intramedullary nail
US20100174284A1 (en) * 2008-10-15 2010-07-08 Zimmer, Gmbh Intramedullary nail
US9474557B2 (en) 2008-10-15 2016-10-25 Zimmer Gmbh Intramedullary nail
CN106618707A (en) * 2008-11-06 2017-05-10 新特斯有限责任公司 One way sliding device for intramedullary intertrochanteric fixation implants
US9883895B2 (en) 2008-11-06 2018-02-06 DePuy Synthes Products, Inc. One way sliding device for intramedullary intertrochanteric fixation implants
US9084643B2 (en) 2008-11-06 2015-07-21 DePuy Synthes Products, Inc. One way sliding device for intramedullary intertrochanteric fixation implants
CN102209500A (en) * 2008-11-06 2011-10-05 新特斯有限责任公司 One way sliding device for intramedullary intertrochanteric fixation implants
US20110196370A1 (en) * 2008-11-06 2011-08-11 Synthes Usa, Llc One Way Sliding Device for Intramedullary Intertrochanteric Fixation Implants
US9295504B2 (en) * 2009-03-31 2016-03-29 Biomet C.V. Intramedullary nail with locking key
US20100249781A1 (en) * 2009-03-31 2010-09-30 Depuy Products, Inc. Intramedullary nail with locking key
US9192399B2 (en) 2009-04-27 2015-11-24 Smith & Nephew, Inc. System and method for identifying a landmark
US9031637B2 (en) 2009-04-27 2015-05-12 Smith & Nephew, Inc. Targeting an orthopaedic implant landmark
US8945147B2 (en) 2009-04-27 2015-02-03 Smith & Nephew, Inc. System and method for identifying a landmark
US8623023B2 (en) 2009-04-27 2014-01-07 Smith & Nephew, Inc. Targeting an orthopaedic implant landmark
US9763598B2 (en) 2009-04-27 2017-09-19 Smith & Nephew, Inc. System and method for identifying a landmark
US9585722B2 (en) 2009-04-27 2017-03-07 Smith & Nephew, Inc. Targeting an orthopaedic implant landmark
AU2016200287B2 (en) * 2009-04-27 2018-02-01 Smith & Nephew Inc System and method for identifying a landmark
US20100274256A1 (en) * 2009-04-27 2010-10-28 Smith & Nephew, Inc. System and Method for Identifying a Landmark
US9198700B2 (en) * 2009-05-05 2015-12-01 DePuy Synthes Products, Inc. Nail locking systems
US20130204251A1 (en) * 2009-05-05 2013-08-08 Synthes Usa, Llc Nail locking systems
US8449544B2 (en) 2009-06-30 2013-05-28 Smith & Nephew, Inc. Orthopaedic implant and fastener assembly
US20120143192A1 (en) * 2009-06-30 2012-06-07 Kohsuke Watanabe Polyaxial fastener systems and methods
CN105726112A (en) * 2009-06-30 2016-07-06 史密夫和内修有限公司 Orthopaedic Implant And Fastener Assembly
US8834469B2 (en) * 2009-06-30 2014-09-16 Smith & Nephew, Inc. Orthopaedic implant and fastener assembly
USD704841S1 (en) 2009-08-26 2014-05-13 Smith & Nephew, Inc. Landmark identifier for targeting an orthopaedic implant
USD674093S1 (en) 2009-08-26 2013-01-08 Smith & Nephew, Inc. Landmark identifier for targeting a landmark of an orthopaedic implant
WO2011100512A3 (en) * 2010-02-11 2013-07-04 Extremity Medical L.L.C. An intraosseous intramedullary fixation assembly and method of use
US9539037B2 (en) 2010-06-03 2017-01-10 Smith & Nephew, Inc. Orthopaedic implants
US20120123415A1 (en) * 2010-11-17 2012-05-17 Vienney Cecile Devices, Methods and Systems for Remedying or Preventing Fractures
US10405899B2 (en) * 2010-11-17 2019-09-10 Hyprevention Sas Devices, methods and systems for remedying or preventing fractures
US8890511B2 (en) 2011-01-25 2014-11-18 Smith & Nephew, Inc. Targeting operation sites
CN103402447A (en) * 2011-02-08 2013-11-20 史赛克创伤有限公司 Implant system for bone fixation
US9782206B2 (en) 2011-02-08 2017-10-10 Stryker European Holdings I, Llc Implant system for bone fixation
US10034696B2 (en) 2011-02-08 2018-07-31 Stryker European Holdings I, Llc Implant system for bone fixation
US9168153B2 (en) 2011-06-16 2015-10-27 Smith & Nephew, Inc. Surgical alignment using references
US9827112B2 (en) 2011-06-16 2017-11-28 Smith & Nephew, Inc. Surgical alignment using references
US9433449B2 (en) 2012-04-13 2016-09-06 Orthopedic Designs North America, Inc Intramedullary nail system including tang-deployment screw with male interface
US9463055B2 (en) 2013-12-09 2016-10-11 Acumed Llc Plate-based compliant hip fixation system
US9433451B2 (en) 2013-12-09 2016-09-06 Acumed Llc Hip fixation system with a compliant fixation element
US10080596B2 (en) 2013-12-09 2018-09-25 Acumed Llc Hip fixation with load-controlled dynamization
US9433448B2 (en) 2013-12-09 2016-09-06 Acumed Llc Nail-based compliant hip fixation system
US20150320461A1 (en) * 2014-05-07 2015-11-12 Acumed Llc Hip fixation with load-controlled dynamization
US9526542B2 (en) * 2014-05-07 2016-12-27 Acumed Llc Hip fixation with load-controlled dynamization
US9517094B1 (en) * 2014-05-09 2016-12-13 Savage Medical Design LLC Intramedullary fixation apparatus for use in hip and femur fracture surgery
CN104887303A (en) * 2015-06-29 2015-09-09 北京贝思达生物技术有限公司 PFNA (proximal femoral nail anti-rotation) intramedullary nail
US10092334B2 (en) * 2016-09-01 2018-10-09 Omic Corporation Femur fixation apparatus
US20180078291A1 (en) * 2016-09-22 2018-03-22 Globus Medical, Inc. Systems and methods for intramedullary nail implantation

Also Published As

Publication number Publication date
JP4278289B2 (en) 2009-06-10
EP1175872A3 (en) 2003-11-19
EP1175872A2 (en) 2002-01-30
AU1825201A (en) 2002-01-31
JP2002035000A (en) 2002-02-05
CA2337303A1 (en) 2002-01-27
US6406477B1 (en) 2002-06-18

Similar Documents

Publication Publication Date Title
US3554193A (en) Femur-setting surgical device
US7179260B2 (en) Bone plates and bone plate assemblies
US7727264B2 (en) Intramedullary fixation device for metaphyseal long bone fractures
US6328758B1 (en) Suture anchor with reversible expansion
CA2444914C (en) Fermoral nail intamedullary system
US5454813A (en) Intramedullary intertrochanteric fracture fixation appliance
JP4602338B2 (en) Intramedullary nail assembly
CA2334443C (en) Surgical blind rivets with closing elements
CA2530827C (en) Variable offset connectors and bone fixation methods
AU771408B2 (en) Intramedullary nail
RU2222284C2 (en) Implant for fixing broken bone fragment
US6033407A (en) Apparatus and method for intramedullary nailing and intramedullary nail therefor
CN1301088C (en) Bone fixation system
ES2384500T3 (en) Apparatus for internal fixation of a fracture
US5779704A (en) Bi-directional universal dynamic compression device
CA2444060C (en) Osteosynthetic anchoring element
US7686807B2 (en) Tool for bone fixation device
US4875475A (en) Device for treating a bone
JP4656810B2 (en) Spinal implants for osteosynthesis devices
US6719759B2 (en) Bone plate
EP0337984B1 (en) Axial compression device
JP3778753B2 (en) Neck screw
US7041104B1 (en) Femoral intramedullary rod system
US5403322A (en) Drill guide and method for avoiding intramedullary nails in the placement of bone pins
EP0891159B1 (en) Adjustable clamp for bone fixation element

Legal Events

Date Code Title Description
AS Assignment

Owner name: KOI INC., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FUJIWARA, HIROO;REEL/FRAME:011496/0839

Effective date: 20010110

STCF Information on status: patent grant

Free format text: PATENTED CASE

AS Assignment

Owner name: ZIMMER TECHNOLOGY, INC., ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ZIMMER, INC.;REEL/FRAME:013862/0766

Effective date: 20020628

FPAY Fee payment

Year of fee payment: 4

FPAY Fee payment

Year of fee payment: 8

REMI Maintenance fee reminder mailed
FPAY Fee payment

Year of fee payment: 12

SULP Surcharge for late payment

Year of fee payment: 11