WO2001017445A1 - Gouttiere pour os - Google Patents

Gouttiere pour os Download PDF

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Publication number
WO2001017445A1
WO2001017445A1 PCT/GB2000/003352 GB0003352W WO0117445A1 WO 2001017445 A1 WO2001017445 A1 WO 2001017445A1 GB 0003352 W GB0003352 W GB 0003352W WO 0117445 A1 WO0117445 A1 WO 0117445A1
Authority
WO
WIPO (PCT)
Prior art keywords
bone
splint
end portions
pieces
cavity
Prior art date
Application number
PCT/GB2000/003352
Other languages
English (en)
Inventor
Nicolaas Gysbert Jacobus Maritz
Original Assignee
Depuy International Limited
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
Application filed by Depuy International Limited filed Critical Depuy International Limited
Publication of WO2001017445A1 publication Critical patent/WO2001017445A1/fr

Links

Classifications

    • 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
    • A61B17/72—Intramedullary pins, nails or other devices
    • A61B17/7291—Intramedullary pins, nails or other devices for small bones, e.g. in the foot, ankle, hand or wrist
    • 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
    • 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
    • A61B17/72—Intramedullary pins, nails or other devices
    • A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
    • 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
    • A61B17/72—Intramedullary pins, nails or other devices
    • A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
    • A61B17/7258—Intramedullary pins, nails or other devices with special means of locking the nail to the bone with laterally expanding parts, e.g. for gripping the bone
    • 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
    • A61B17/72—Intramedullary pins, nails or other devices
    • A61B17/7283—Intramedullary pins, nails or other devices with special cross-section of the nail
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00004—(bio)absorbable, (bio)resorbable or resorptive

Definitions

  • This invention relates to a bone splint which can be located within a bone cavity to align two pieces of bone.
  • Internal bone splints are commonly used to align pieces of bone while bone tissue grows between them, for example to align fragments of a bone that has fractured during healing.
  • the splint is located within the cavity within the bone by insertion at an end of the bone. Examples of applications for this technique include alignment of fragments of broken bones in the arm and leg, and also in fingers and toes. It can also be used in applications in which two bone pieces on opposite side of an articulating joint (including a prosthetic joint) are joined to one another so as to immobilise the joint, especially in joints in fingers and toes.
  • the present invention provides a bone splint for location within a bone cavity to align two bone pieces, the splint being elongate and having an external surface configuration such that its two opposite end portions can be inserted in opposite directions into the cavities within respective bone pieces, but resist being pulled out of the said cavities, each of the opposite end portions having at least one barb formed on it extending substantially continuously around the splint in a ring-like manner, the face of each barb which faces the end of the splint and the bone piece into which the respective end portion is to be inserted being inclined to the axis of the splint to facilitate inward deformation of the barbs as the end portions are inserted into the bone cavities.
  • the present invention enables a bone splint to be positioned within the cavity in two bone pieces without having to gain access to the cavity at an adjacent end of the bone. It is not therefore necessary for example to open an adjacent joint. This has important advantages in terms of reducing complications in the surgical procedure, in particular as a result disrupting an otherwise healthy joint. This can also therefore reduce delays in the patient's recovery and improve the patient's lifestyle.
  • the resistance to being pulled out of the bone cavities can be realised in the splint of the invention by means of at least one formation in the form of a barb on each of its opposite end portions.
  • the barb should be dimensioned so as to be an interference fit with the internal wall of the bone cavity.
  • the interference fit between the bone and the bone splint will generally involve deformation of the material of one of the bone and the splint. The deformation will depend on the relative susceptibilities to bending deformations of the materials. For example, when the material of the bone splint is polymeric and less susceptible to a bending deformation than the material of the bone, it will generally be the material of the splint which will deform.
  • a suitable barb will have a configuration which, when viewed in cross-section, presents a front face to the bone piece on insertion which is inclined, and a reverse face which is closer to perpendicular to the axis of the splint.
  • the angle between the front face and the axis is preferably not more than about 40°, more preferably not more than about 35°.
  • the angle between the reverse face of the barb and a line perpendicular to the axis of splint is not more than about 30°, more preferably not more than about 20°, for example not more than about 10°.
  • the ratio between the external transverse dimension of the bone splint including the barb to the external transverse dimension not including the barb is not more than about 1.5, more preferably not more than about 1.4.
  • the height of the transverse formation mentioned in a direction perpendicular to the axis of the splint is preferably not more than about 1.0 mm, preferably not more than about 0.8 mm.
  • the ratio between the external transverse dimension of the bone splint including the barb to the external transverse dimension not including the barb is at least about 1.2, more preferably at least about 1.3.
  • each of the end portions can be provided in one or more arrays.
  • the formations are provided in a single array which extends along substantially the entire length of each of the end portions.
  • the spacing between adjacent formations will generally be at least about 0.3 mm, for example at least about 0.5 mm.
  • the spacing will generally be less than about 5 mm, preferably less than about 2 mm, for example about 1.0 mm.
  • the formations should preferably be able to flex inwardly on insertion into the cavity.
  • the axially extending body section of the bone splint should however, be substantially rigid in that its transverse dimension does not change significantly when the splint is located in the cavity.
  • the body section will generally be substantially solid, preferably without significant axially extending voids such as would reduce the ability of the splint to accommodate loads; however, for some applications, the bone splint can have an axially extending channel provided in it, for example to accommodate a suture or a guide wire.
  • the channel need only be fine, for example so that the ratio of its transverse dimension to that of the body section is not more than about 0.4, preferably not more than about 0.25, for example not more than about 0.15.
  • Barbs can be spaced apart around the periphery of the bone splint. They should preferably be arranged symmetrically around the axis of the bone splint.
  • the barbs can be provided as narrow projections, or can extend around the axis significantly with narrow channels separating them.
  • the barbs should extend substantially continuously around the bone splint.
  • the barbs can extend around the splint in a ring-like manner.
  • the barbs need not be entirely continuous around the splint; for example, they might be split at one or more points around the periphery of the rings.
  • the barb might extend around the splint in the manner of a screw thread. When the formation on both of the end portions is in the manner of a screw thread, it can be preferred for the directions of the screw threads to be opposed so as to facilitate insertion of the splint into the bone pieces.
  • the bone splint can be provided as one piece. This has the advantage that the bone pieces are held rigidly in alignment by the splint. It can however be preferred for many applications for the two opposite end portions of the splint to be separable. This has the advantage that the splint can be inserted into the separated bone pieces even when the pieces cannot only be separated by a short distance which is significantly less than the overall length of the splint.
  • Each of the separated end portions of the splint can be inserted into its respective bone fragment. The end portions can then be connected to one another to provide the required alignment of the bone pieces. Preferably, the connection between the end portions is such that they resist separation.
  • the end portions of the splint can be connected to one another by means of a spigot and socket arrangement. Separation of such end portions can be resisted by means of a morse taper provided between the spigot and the socket.
  • Other arrangements for connection of the end portions might include, for example, a conical shaped end on one of the end portions and a matching conical recess on the other end portion.
  • the splint will be configured so that the axes of the bone pieces are aligned when the joint has been assembled with end portions of the splint are located within the bone cavity.
  • a splint might be used for example in the treatment of bone fractures as well as for other applications such as the immobilisation of a joint.
  • the splint can however be configured with the axes of the bone pieces are non-aligned when the joint has been assembled with end portions of the splint are located within the bone cavity.
  • the angle between the axes of the bone pieces might be at least about 120°, or at least about 135°.
  • Such a splint can find particular application in the immobilisation of joints such as finger and toe joints (including prosthetic joints).
  • the prepared cavity might have a constant cross section.
  • Such a cavity can be prepared for example by reaming it to an appropriate size to receive the respective end portions of the splint, generally to a size which is slightly smaller than the external transverse dimension of the end portions of the splint so that the splint is deformed slightly on insertion into the cavities.
  • the cavity can be prepared with a cross-sectional shape which tapers.
  • the cross-section of the bone splint can be rounded, especially approximately elliptical or circular, for many applications.
  • a splint with a rounded cross-section is particularly suitable for use in a bone cavity which has been prepared using a reamer.
  • the bone splint can have other cross-sections, for example polygonal such as triangular or square (or rectangular).
  • the invention provides a kit for joining two bone pieces, which comprises: a. a bone splint as discussed above, and b. a reamer for preparing the cavities within the bone pieces for receiving the respective end portions of the splint.
  • the reamer is selected to create a reamed cavity with an internal transverse dimension which is slightly smaller than the external dimension of the bone splint.
  • the difference in the transverse dimension will generally be less than about 1.0 mm, preferably less than about 0.5 mm.
  • the shape of the reamed cavity will preferably match that of the bone splint so that contact between the bone in the cavity and the external surface of the bone splint is maximised around the entire periphery of the splint.
  • the splint includes a flange which has relatively large transverse dimension which prevents it from being pushed into the prepared bone cavity. This can serve to ensure that the splint is located properly with its end portions located in respective ones of the bone pieces.
  • the flange can present an inclined face to the bone on one side and a less inclined face on its other side. The inclined face enables the flange to be accommodated partially within the cavity within one of the bone pieces.
  • the material of the splint should be biocompatible and should be capable of accommodating the loads to which the splint will be subjected after implantation. It might be preferred for some applications that the material be capable of flexing slightly to avoid undesirable concentrations of stress, for example at the ends of the bone splint.
  • Suitable materials for the splint might include metallic materials, polymeric materials and inorganic materials. Examples of metallic materials include those based on titanium and stainless steel, and related alloys.
  • the splint can be made from more than one material.
  • the material of the barb might differ from the material of the body portion of the splint, being selected for its deformability.
  • the material of the splint be capable of being resorbed after being implanted, for example on contact with body fluids.
  • the bone is left without the bone splint within it, after a period which is long enough for bone tissue to grow between the bone pieces.
  • This has the advantage that is not necessary to perform a second surgical procedure to remove an implanted bone splint, and means that the bone splint can be designed with features which would prevent it from being removed (such as barbs which prevent the splint from being slid along the bone cavity).
  • materials which are known er se, and which might be used to form the splint include certain polyesters, polyanhydrides, and poly- -hydroxide acids.
  • a particularly preferred material contains one or both of a polylactic acid and a polyglycolic acid.
  • Poly-L-lactic acid (PLLA) is especially preferred. It is an advantage arising from use of a polymeric material that the bone splint can conveniently be made by techniques such as moulding or machining or a combination of the two. The resorption profile of the material should be such that the material retains significant mechanical strength until the fracture is sufficiently healed to bear loads.
  • the ends of the bone splint are rounded. This facilitates insertion of the end portions into the bone pieces.
  • the bone pieces which are aligned by means of the bone splint can be placed under compression in order to encourage the growth of bone tissue between the bone pieces.
  • the bone pieces can be placed under compression by means of a suture which extends between the bone pieces.
  • a transverse aperture might be provided in each of the end portions of the splint, which can accommodate a suture passing through the splint and also the bone pieces.
  • the transverse apertures can be provided in the bone splint during manufacture. They can also be provided after insertion of the end portions into the bone cavity by drilling through the bone and the inserted splint, especially when the splint is formed from a resorbable material. This latter technique has the advantage of ensuring alignment of the apertures in the bone and the splint.
  • the bone pieces can be placed under compression by means of a suture which passes along the length of the bone splint. This is particularly appropriate when the bone splint is used to treat fractures of the patella.
  • Figure 1 is a schematic view of a finger in which a bone is fractured, illustrating a known technique for insertion of a bone splint.
  • Figure 2 is a schematic view of a finger in which a bone is fractured, illustrating the splint insertion technique of the present invention.
  • Figure 3 is a schematic view of the finger shown in Figure 2 with the bone splint in place to treat the fracture.
  • Figure 4 is a side view of a bone splint according to the present invention.
  • Figure 5 is a side view of another embodiment of bone splint in which the two end portions can be separated.
  • Figure 6 is a side view, partially in section, through a long bone such as an ulna, in which a bone splint according to the invention has been implanted.
  • Figures 7 (a) to (c) are isometric views of three embodiments of bone splints.
  • Figure 8 is a plan view, partially in section, through a patella, in which two bone splints according to the invention have been implanted.
  • Figure 1 shows a finger 2 in which a bone 4 is fractured in two bone pieces 6, 8.
  • Each of the bone pieces has a bone cavity extending along its length.
  • the fracture in the bone 4 is treated by means of a bone splint 12 which is located within the cavity in the bones once they have been prepared. Access to the cavity is gained by opening an adjacent joint 14 in the finger.
  • Figure 2 shows a finger 22 in which a bone is fractured into two bone pieces 26, 28, each with a bone cavity 30 extending along its length.
  • the fracture is treated by means of a bone splint 32 which is inserted into the bone cavity at the fracture site.
  • Figure 3 shows the finger 22 shown in Figure 2 with the bone splint 32 located within the bone cavity in each of the bone pieces 26, 28 so as to hold them in alignment.
  • the bone splint 40 shown in Figure 4 is formed from PLLA. It consists of a rod-like body section 42 which has two opposite end portions 44, 46. Each of the end portions as a plurality of circumferentially extending barb-like ribs 48 extending around it.
  • the ribs 48 have a front face 50 facing towards the respective end 52, 54 of the bone splint, which is inclined to the axis of the splint, and a reverse face 56 which is substantially perpendicular to the splint axis and faces towards the opposed end portion.
  • the angle between the inclined face 50 and the axis is about 60°.
  • a flange 58 is provided between the end portions 44, 46 of the splint.
  • the flange has a first face 60 which is inclined to the axis of the bone splint, and a second face 61 which is substantially perpendicular to the axis.
  • the angle between the inclined face of the flange and the axis is about 45°.
  • the faces of the ribs and the flange are shown as flat, they can have other profiles.
  • the front faces 50 of the ribs 48 can be rounded so that the ribs are tapered inwardly towards their tips to increase flexibility.
  • the faces at the ends 52, 54 of the bone splint are rounded to facilitate insertion of the bone splint into the cavity within a bone.
  • the bone splint shown in Figure 5 differs from that shown in Figure 4 in that the end portions 44, 46 can be separated.
  • a first one 44 of the end portions has a socket 62 formed in it and the second end portion 46 bears a spigot 64 which can be received in the socket.
  • the spigot and socket can be appropriately tapered to ensure that the frictional forces between them provide sufficient resistance to separation for the end portions to remain connected to one another after implantation.
  • Bone splints of the kind shown above in Figures 4 and 5 can be used applications such as treatment of fractures in fingers and toes, and in longer bones such as those in the arm and leg, as well as in specialised applications such as fractures of the patella. They can also be used to immobilise joints (including, but not necessarily, prosthetic joints) such as in the finger and toe. Suitable dimensions for bone splints for use in a finger are as follows (in mm):
  • Figure 6 shows a bone splint 40 such as that shown in Figure 5 in place within the intra- medullary cavity 66 in an ulna.
  • the end portions 44, 46 are located within respective pieces 68, 70 of the fractured bone. They were located there while separated from one another, and then joined to one another by locating the spigot 62 on one of the bone splint portions in the socket 64 on the other of the bone splint portions. Insertion of the portions of the bone splint into the cavities within the bone pieces involves inward deformation of the tips of the ribs.
  • holes 72 are drilled through the bone and the splint within its cavity which through which a suture 74 can be laced to place the bone pieces 68, 70 under compression.
  • the bone splints shown in Figures 7 (a) to (c) are similar to the splints shown in Figure 4.
  • the splint shown in Figure 7 (a) has an axial through bore 76 through which another component (such as a suture, or a guide wire etc) can be inserted.
  • the splint shown in Figure 7 (b) has its ribs provided in spaced apart arrays 78.
  • the splint in Figure 7 (c) has formations in the form of three ribs that are split by means of channels 80 which extend along the length of the splint.
  • FIG 8 shows a patella 90 which has fractured across its width.
  • Two bone splints 92, 94 bridge the patella fragments.
  • Each of the bone splints is generally of the type described above with reference to Figure 7 (a). They have a bore 96 extending along their lengths. After location of the bone splints within the patella bone fragments, a suture 98 is threaded through them to place the fragments under compression.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

La présente invention concerne une gouttière pour os effilée destinée à être placée dans la cavité d'un os de façon à aligner deux morceaux d'os, qui présente une configuration de surface externe telle que ses deux parties d'extrémité opposées peuvent être insérées en direction opposées dans les cavités des morceaux d'os respectifs, mais peuvent résister à la traction vers l'extérieur de ces cavités. Chacune de ces parties d'extrémité opposées possède au moins un ardillon formé sur cette extrémité qui se situe sensiblement de façon continue autour de la gouttière en anneau, la face de chaque ardillon tournée vers l'extrémité de la gouttière et l'os dans lequel les parties d'extrémité respectives doivent être introduite étant inclinée vers l'axe de la gouttière de façon à faciliter une déformation des ardillons vers l'intérieur lorsque les parties d'extrémité sont insérées dans les cavités de l'os.
PCT/GB2000/003352 1999-09-03 2000-09-01 Gouttiere pour os WO2001017445A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9920785.4 1999-09-03
GBGB9920785.4A GB9920785D0 (en) 1999-09-03 1999-09-03 Bone splint

Publications (1)

Publication Number Publication Date
WO2001017445A1 true WO2001017445A1 (fr) 2001-03-15

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PCT/GB2000/003352 WO2001017445A1 (fr) 1999-09-03 2000-09-01 Gouttiere pour os

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GB (1) GB9920785D0 (fr)
WO (1) WO2001017445A1 (fr)

Cited By (26)

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WO2007036954A1 (fr) * 2005-09-29 2007-04-05 Himanshu Bansal Appareil d'interverrouillage d'avant-bras
WO2016177790A1 (fr) * 2015-05-06 2016-11-10 Syntellix Ag Implant d'arthrodèse
US9839448B2 (en) 2013-10-15 2017-12-12 Si-Bone Inc. Implant placement
US9839453B2 (en) 2007-03-20 2017-12-12 Stryker European Holdings I, Llc Osteosynthesis device
US9936983B2 (en) 2013-03-15 2018-04-10 Si-Bone Inc. Implants for spinal fixation or fusion
US9949843B2 (en) 2004-08-09 2018-04-24 Si-Bone Inc. Apparatus, systems, and methods for the fixation or fusion of bone
US9956013B2 (en) 2004-08-09 2018-05-01 Si-Bone Inc. Systems and methods for the fixation or fusion of bone
US10004547B2 (en) 2004-08-09 2018-06-26 Si-Bone Inc. Systems and methods for the fixation or fusion of bone at or near a sacroiliac joint
US10022167B2 (en) 2005-04-14 2018-07-17 Stryker European Holdings I, Llc Method of osteosyntheses or arthrodesis of two-bone parts, in particular of the hand and / or foot
EP1791480B1 (fr) * 2004-08-09 2018-10-24 SI-Bone, Inc. Dispositif de fixation/fusion d'os
US10166033B2 (en) 2014-09-18 2019-01-01 Si-Bone Inc. Implants for bone fixation or fusion
US10194962B2 (en) 2014-09-18 2019-02-05 Si-Bone Inc. Matrix implant
US10201427B2 (en) 2012-03-09 2019-02-12 Si-Bone Inc. Integrated implant
US10363140B2 (en) 2012-03-09 2019-07-30 Si-Bone Inc. Systems, device, and methods for joint fusion
US10376206B2 (en) 2015-04-01 2019-08-13 Si-Bone Inc. Neuromonitoring systems and methods for bone fixation or fusion procedures
US10383671B2 (en) 2008-09-09 2019-08-20 Stryker European Holdings I, Llc Resorptive intramedullary implant between two bones or two bone fragments
US10426533B2 (en) 2012-05-04 2019-10-01 Si-Bone Inc. Fenestrated implant
US10470807B2 (en) 2016-06-03 2019-11-12 Stryker European Holdings I, Llc Intramedullary implant and method of use
US11116519B2 (en) 2017-09-26 2021-09-14 Si-Bone Inc. Systems and methods for decorticating the sacroiliac joint
US11147688B2 (en) 2013-10-15 2021-10-19 Si-Bone Inc. Implant placement
US11234830B2 (en) 2019-02-14 2022-02-01 Si-Bone Inc. Implants for spinal fixation and or fusion
US11369419B2 (en) 2019-02-14 2022-06-28 Si-Bone Inc. Implants for spinal fixation and or fusion
US11571245B2 (en) 2019-11-27 2023-02-07 Si-Bone Inc. Bone stabilizing implants and methods of placement across SI joints
US11633292B2 (en) 2005-05-24 2023-04-25 Si-Bone Inc. Apparatus, systems, and methods for the fixation or fusion of bone
US11752011B2 (en) 2020-12-09 2023-09-12 Si-Bone Inc. Sacro-iliac joint stabilizing implants and methods of implantation
US12083026B2 (en) 2019-12-09 2024-09-10 Si-Bone Inc. Sacro-iliac joint stabilizing implants and methods of implantation

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US5417692A (en) * 1994-01-04 1995-05-23 Goble; E. Marlowe Bone fixation and fusion system
WO1996002202A1 (fr) * 1994-07-15 1996-02-01 Smith & Nephew Richards Inc. Clou intramedullaire a parties multiples

Patent Citations (4)

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US4190044A (en) * 1978-08-16 1980-02-26 Wood Eugene W Telescoping intermedullary pin
DE4307540A1 (en) * 1992-03-10 1993-09-16 Asahi Optical Co Ltd Equipment re-joining separated bone sections - comprises components fixed inside respective sections and with connecting portions engaging together
US5417692A (en) * 1994-01-04 1995-05-23 Goble; E. Marlowe Bone fixation and fusion system
WO1996002202A1 (fr) * 1994-07-15 1996-02-01 Smith & Nephew Richards Inc. Clou intramedullaire a parties multiples

Cited By (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1791480B1 (fr) * 2004-08-09 2018-10-24 SI-Bone, Inc. Dispositif de fixation/fusion d'os
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