US20150289889A1 - Tools and Systems for Solid Form and Graft Implantation - Google Patents

Tools and Systems for Solid Form and Graft Implantation Download PDF

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Publication number
US20150289889A1
US20150289889A1 US14/441,985 US201314441985A US2015289889A1 US 20150289889 A1 US20150289889 A1 US 20150289889A1 US 201314441985 A US201314441985 A US 201314441985A US 2015289889 A1 US2015289889 A1 US 2015289889A1
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Prior art keywords
implantation
tissue
tool
rod
graft
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US14/441,985
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English (en)
Inventor
Nir Altschuler
Amir Goren
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Cartiheal 2009 Ltd
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Cartiheal 2009 Ltd
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Priority to US14/441,985 priority Critical patent/US20150289889A1/en
Assigned to CARTIHEAL (2009) LTD. reassignment CARTIHEAL (2009) LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ALTSCHULER, NIR, GOREN, AMIR
Publication of US20150289889A1 publication Critical patent/US20150289889A1/en
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4601—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires
    • 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
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • 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
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8872—Instruments for putting said fixation devices against or away from 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
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8875—Screwdrivers, spanners or wrenches
    • A61B17/8894—Screwdrivers, spanners or wrenches holding the implant into or through which the screw is to be inserted
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/28—Bones
    • A61F2002/2835—Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2002/4677—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor using a guide wire

Definitions

  • the treatment of all bone and/or cartilage lesions depends on the patient's age and the extent of the lesion.
  • Treatment options for patients first manifesting symptoms of such lesions may include non-surgical treatment or surgical treatment.
  • Surgical procedures to treat the lesions include open or arthroscopic drilling, debridement, bone marrow stimulation, bone grafting, chondrocyte implantation and osteochondral grafts.
  • Solid or semi-solid forms of implants for cartilage and bone regeneration or repair are promising therapies and may comprise, for example: osteochondral allograft or autograft, synthetic bi-phasic implant, coral based Implant, bi-phasic implants that are composed of aragonite in a first phase and aragonite and hyaluronic acid in a second phase and others.
  • Such implants for bone and cartilage regeneration or repair are often in use to treat cartilage, osteochondral and bone defects in the knee, ankle, shoulder, hip, elbow, vertebra etc.
  • a hole or void is first created within the tissue, for example within the bone, preferably with a diameter similar or slightly smaller than the area in which the implant is to occupy, ensuring a tight fit within the implant region.
  • Such hole or void is typically introduced via drilling, with the obvious limitation of heating tissue proximal to the implantation site, compromising the same in terms of its healing capacity, or via manual manipulation, which can lead to obvious irregularities in terms of the void creation geometry, loss of appropriate orientation and the introduction of greater human error and thereby potential damage to the surrounding tissue at the insertion site.
  • the success of grafting depends on, among other factors, the fit in size and shape of the harvested graft (osteochondral plug) to the hole formed at the receiving site.
  • This invention provides, in one embodiment, an implantation alignment tool comprising:
  • the elongated body has a varying outer diameter, varying inner diameter or a combination thereof along the length of said elongated body. In other embodiments, the elongated body has an outer diameter, inner diameter or a combination thereof that does not vary along the length of said elongated body.
  • the at least a portion of a first region, at least a portion of a second region or a combination thereof contact a boundary of an implantation site.
  • the first region is proximal to said joint region and said second region is proximal to said first region and distal to said joint region.
  • the stabilization structure comprises alternating first and second regions arranged in a desired pattern such that a second region is located at a distal terminus of said stabilization structure.
  • the second region contains at least one terminally extending scoring protrusion.
  • the stabilization structure comprises alternating first and second regions along a horizontal axis of said stabilization structure.
  • the stabilization structure comprises alternating first and second regions along a vertical axis of said stabilization structure.
  • the stabilization structure comprises alternating first and second regions resembling a screw structure.
  • the stabilization structure comprises alternating first and second regions resembling a drill bit structure.
  • the elongated body comprises a material that is a metal, metal alloy, ceramic, glass or plastic.
  • the stabilization structure comprises a metal, metal alloy, ceramic, glass or plastic and may optionally incorporate a flexible or shock-absorbing material.
  • the stabilization structure and elongated body are comprised of the same material.
  • the stabilization structure and elongated body are formed as a single piece, for example, via cast molding, and other known means.
  • the the stabilization structure and elongated body are formed as separate pieces joined seamlessly together, for example, via welding, or other known means.
  • the alignment tool is adapted to fit over a rod-like structure.
  • this invention provides a kit comprising an implantation alignment tool as herein described
  • the kit further comprises a surgical cutter, optionally adapted to fit over the implantation alignment tool in situ, wherein the alignment tool maintains a desired orientation of the surgical cutter during tissue harvest.
  • the surgical cutter comprises at least one laterally extending protrusion, which may optionally be moved from an undeployed to deployed position, which at least one laterally extending protrusion may extend into the tissue walls proximally located to the defect site.
  • such surgical cutter may be further adapted to comprise markings or an adaptation so that the user may readily measure the dimensions of the implantation site boundaries, for example, depth, or sides, which in some embodiments, allows for user control to ensure the likelihood that the dimensions of the prepared implantation site are appropriate.
  • the kit further comprises one or more rod-like structures.
  • the one or more rod-like structures may vary in terms of their composition, length, diameter or a combination thereof.
  • the kit further comprises a surgical reamer, adapted to fit over the rod-like structure.
  • the kit further comprises a surgical smoother, optionally adapted to fit over said implantation alignment tool in situ, or over a rod-like structure.
  • the kit further comprises:
  • the kit further comprises an implantation tool stabilizing implement comprising:
  • At least one stabilizing contact structure comprising an at least partially circular concave single piece structure having an inner tissue contact surface and an outer visualization surface, and an aperture adapted for insertion of said rod-like structure therethrough located centrally within said structure spanning said inner and outer surfaces.
  • this invention provides an implantation tool stabilizing implement comprising:
  • At least one stabilizing contact structure comprising an at least partially circular concave structure having an inner tissue contact surface and an outer visualization surface, and an aperture adapted for insertion of said rod-like structure therethrough located centrally within said structure spanning said structure.
  • the hollow cylindrical body is sized to accommodate insertion of a K-wire therethrough.
  • the diameter of the hollow cylindrical body in comparison to a diameter of the rod-like structure is such that the rod-like structure insertion therethrough leaves a space between an outer surface of the rod-like structure and an internal surface of said hollow cylindrical body.
  • the stabilizing implement further comprises an adapter, which adapter possesses a diameter which is smaller than that of said hollow cylindrical body and which diameter is larger than a diameter of said rod-like structure and wherein said adapter is placed within said hollow cylindrical body and said rod-like structure may be inserted therethrough.
  • the at least partially circular concave structure is comprised of a transparent or translucent material.
  • the hollow elongated body and said at least one stabilizing contact region are comprised of a metal, metal alloy, glass or plastic.
  • the hollow cylindrical body and said at least one stabilizing contact region are comprised of a different material.
  • the hollow cylindrical body is comprised of a metal or metal alloy.
  • the hollow cylindrical body is comprised of a plastic or glass.
  • the hollow cylindrical body and said at least one stabilizing contact region are comprised of the same material.
  • this invention provides an implantation scoring tool comprising:
  • a longitudinal body which is optionally hollow and optionally adapted for insertion of a rod-like structure therethrough;
  • At least one laterally extending protrusion which protrusion is oriented substantially perpendicularly to a long-axis of said longitudinal body, optionally wherein said laterally extending protrusion optionally possesses a deployed and a compact position;
  • said laterally extending protrusion inserts within a tissue wall bounding said implant site thereby scoring said tissue wall.
  • this invention provides a graft or solid implant introducing tool suitable for the introduction of brittle grafts or solid implants, said graft or solid implant introducing tool comprising:
  • a piston assembly containing a substantially elongated body, which optionally contains a hollow through which a rod-like structure may insert and a first terminus comprised of a shock-absorbant material and an advancer structure located at a second terminus of said substantially elongated body;
  • sheath which sheath accommodates insertion of said piston assembly therewithin, which sheath comprises:
  • stopper region located proximally to said piston assembly when said piston assembly is inserted within said substantially hollow substantially cylindrical body, wherein said stopper region comprises a solid boundary containing an opening, which opening accommodates insertion of only a portion of said first terminus of said piston assembly;
  • a stopper indicator region located proximally to said a graft or solid implant containment part, which indicator region may comprise a mark identifying optimal advancement of the graft or solid implant;
  • a graft or solid implant containment part located proximally to said solid boundary of said stopper region, which part is comprised of a flexible shock-absorbing material and which part is optionally sized to accommodate insertion of only a portion of a graft or solid implant therewithin or which part will abut placement of said graft or solid implant placed proximally thereto.
  • the stopper indicator region may include identifying marks on both the graft or solid implant containment part and on the sheath, and their alignment or combined configuration identifies optimal placement of said graft or implant.
  • the sheath may comprise a “window” or visible region such that when said the graft or solid implant containment part and achieves a desired advancement therewithin, visualization of the containment part within the window, or visualization of a symbol within such window serves as the identifying mark.
  • this invention provides a graft or solid implant introducing tool suitable for the introduction of brittle grafts or solid implants, said graft or solid implant introducing tool comprising:
  • a substantially elongated body which optionally contains a hollow extending therethrough, sized to accommodate insertion of a rod-like structure
  • a first terminus comprised of a shock-absorbant material
  • a gripping part comprised of a flexible shock-absorbing material and which gripping part is sized to accommodate insertion of only a portion of a graft or solid implant therewithin;
  • a rod-like structure extending through said hollow in said substantially elongated body.
  • a graft or implant is placed within a gripping part of a piston assembly, or, in some embodiments, within a gripping part of the graft or solid implant introducing tool, and the tool advances the implant or graft within an implantation site.
  • a graft or implant is cannulated, or in some embodiments, comprises a void along a longitudinal axis spanning a length of such graft or implant, which graft or implant may then be threaded onto a rod-like structure.
  • such rod-like structure is itself threaded through the solid implant introducing tools of this invention, and the graft or implant abuts the first terminus or is contained within a gripping part of located at the first terminus of the solid implant introducing tool.
  • such rod-like structure is implanted within a tissue containing a prospective implantation site, and said graft or implant and the solid implant introducing tool are both threaded onto the rod-like structure in situ, whereby the advancing part of the solid implant introducing tool is used to advance the graft or implant to create an appropriate fit of the graft or implant within the implant site.
  • the most terminal part of said gripping part is inserted into a void into which said graft or solid implant is to be inserted, and wherein said most terminal part of said gripping part is substantially flat and smooth.
  • the insertion region for insertion of the piston assembly, the substantially hollow body, stopper region, graft or solid implant containment gripping part or a combination thereof comprise a void such that said rod-like structure may insert therethrough.
  • the substantially elongated body of said piston assembly, said insertion region for insertion of said piston assembly, said substantially hollow substantially cylindrical body, said stopper region or a combination thereof are comprised of a glass or plastic.
  • the first terminus of said piston assembly, gripping part or a combination thereof is comprised of a silicon, rubber or latex material.
  • this invention provides solid implants comprising a hollow along a longitudinal axis of such implant, which may be adapted to fit over a rod-like structure as herein described.
  • This invention provides a kit comprising the implantation tool stabilizing implement as herein described. In some embodiments, this invention provides a kit comprising an implantation alignment tool as herein described. In some embodiments, this invention provides a kit with any one or more tools as herein described in any combination, as will be appreciated by the skilled artisan.
  • This invention also provides a method of tissue implantation in a subject, which method minimizes damage to an area of tissue implantation, said method comprising the steps of:
  • This invention also provides a method of tissue graft extraction in a subject, which method minimizes damage to an area of tissue in said graft and tissue surrounding said graft extraction site, said method comprising the steps of:
  • This invention provides a method for minimizing damage to an area of solid implant insertion in a tissue in a subject in need thereof, said method comprising the steps of:
  • the method further comprises the steps of:
  • an implantation tool stabilizing implement to a surface of a target implantation site in a subject, wherein said implantation tool stabilizing implement comprises:
  • FIG. 1 schematically depicts embodiments of an implantation tool stabilizing implement of this invention.
  • FIG. 2 schematically depicts embodiments of an implantation tool stabilizing implement of this invention and for use in the methods of this invention, containing multiple stabilizing contact structures in different embodied configurations.
  • FIG. 3 schematically depicts different components of embodied tools of this invention for use in the kits and methods of this invention, for example, rod-like structures, an embodied drill bit assembly including the insertion of a rod-like structure therethrough and an embodied drill bit protective sheath.
  • FIG. 4 schematically depicts embodiments of implantation alignment tools of this invention for use in the kits and methods of this invention.
  • FIG. 5 schematically depicts embodiments of implantation alignment tools of this invention and for use in the kits and methods of this invention showing multiple embodied stabilization structures in different embodied configurations. Further terminal modifications including lateral protrusions are envisioned.
  • FIG. 6 schematically depicts embodiments of surgical cutters of this invention and for use in the kits and methods of this invention.
  • FIG. 7 schematically depicts embodiments of reamers and smoothing tools of this invention and for use in the kits and methods of this invention.
  • FIG. 8 schematically depicts embodiments of implantation scoring tools of this invention including depicting a collapsed and deployed state of the embodied scoring tool.
  • FIG. 9 schematically depicts embodiments of graft or solid implant introducing tools of this invention and for use in the methods of this invention, including graft or solid implant introducing tools comprising a hollowed region through which a rod-like structure, such as a K-wire may insert.
  • FIG. 10 schematically depicts embodiments of an embodied implantation tool stabilizing implement, including insertion of a rod-like structure therethrough, a drill bit assembly unit, implantation alignment tool, surgical cutter, reamer and smoothing tool of this invention and for use in accordance with the methods of this invention.
  • Kits of this invention envisioned include the full complement of tools described in FIG. 10 , or one or more tool combinations of the tools of this invention.
  • FIG. 11 schematically depicts a more magnified view of the creation of an appropriate implantation or graft site, insertion of a graft or solid implant introducing tool containing the desired graft or solid implant therewithin and an embodied implantation of a desired implant or graft being accomplished in a tight-fit.
  • FIG. 12 schematically depicts a view of an embodied extractor tool, which in some embodiments, removes the implantation tool stabilizing implement upon application of the surgical cutter thereon.
  • FIG. 13 schematically depicts certain steps in an embodied implantation procedure using embodied tools of this invention, whereby a thicker rod like-structure is replaced with a thinner rod-like structure following preparation of the implantation site, for eventual threading and implantation of a graft or implant within such site.
  • FIG. 14 provides a flow chart illustrating an embodied procedure for introducing a graft or solid implant into a subject, making use of the tools of this invention.
  • FIG. 15 provides a second flow chart illustrating another embodied procedure for introducing a graft or solid implant into a subject, making use of the tools of this invention.
  • This invention provides tools and kits for removal of a graft and/or for integration of a solid or semi-solid form implant or graft implant within an appropriate desired tissue minimizing the potential for or actual breakage of the implant or graft during the stated process.
  • a fundamental problem in the field of graft and solid implant insertion within a desired tissue site is that improper insertion of the same leads to incomplete healing and suboptimal function to loss of function, depending upon the nature and severity of the inappropriate insertion. This problem in particular is encountered when implanting a solid form within or when traversing bone tissue.
  • the tools, kits and methods provide for a much more oriented application of the implant, and a means for both extracting and implanting matter within or traversing bone tissue, which preserves greater viability and intact structure of the tissues (bone and cartilage) affected as part of these procedures.
  • the invention provides methods for minimizing damage to an area of tissue graft extraction in a subject in need thereof, for minimizing damage to an area of solid implant insertion in a tissue in a subject in need thereof, and/or for optimizing the orientation of a solid implant or graft insertion in a subject in need thereof.
  • the invention for the first time provides a means for ideal creation of a void within solid tissue such as bone and cartilage, whereby the viability of the cells and integrity of the solid tissue into which an implant is inserted is significantly preserved, or at least much more minimally affected.
  • typically procedures for creation of a void within solid tissue which in turn precedes an implantation procedure are marked by damage to the structure of the solid, e.g. bone and cartilage tissues for the extraction and implantation steps.
  • Typical extraction methods entail use of either automated tools such as a drill to provide access to the bone tissue, or involve manual means for accessing the same.
  • This invention provides a method of tissue implantation in a subject, which method minimizes damage to an area of tissue implantation, said method comprising the steps of:
  • This invention also provides a method of tissue graft extraction in a subject, which method minimizes damage to an area of tissue in said graft and tissue surrounding said graft extraction site, said method comprising the steps of:
  • This invention still further provides a method for minimizing damage to an area of solid implant insertion in a tissue in a subject in need thereof, said method comprising the steps of:
  • the method for minimizing damage to an area of solid implant insertion in a tissue in a subject in need thereof comprising the steps of:
  • a similar method as herein described is used for a perpendicular positioning and minimizing damage to an area of tissue graft extraction in a subject in need thereof.
  • the tools, kits and methods are particularly suitable for arthoscopic and minimally invasive procedures.
  • the methods of this invention may further include the step of creating an opening in a region proximal to the bone or other solid tissue into which a graft or solid form is to be implanted, or from which a graft may be removed.
  • methods for graft or solid form implantation within the knee may include a mini-arthrotomy procedure or an arthroscopy procedure to create an opening therein.
  • the methods may, in some embodiments, make use of an implantation tool stabilizing implement for the extraction/removal of some tissue at the implant/graft site.
  • an implantation tool stabilizing implement comprising:
  • FIG. 1-FIG . 2 depict embodied aspects of a stabilizing implement of this invention.
  • the stabilizing implement contains a hollow elongated body 10 adapted for insertion of a rod-like structure therethrough, for example, inserted within the void beginning at 20 and spanning the length of the body, for example, as noted by “E”, the cross section of which is shown in FIG. 1C .
  • the stabilizing implement further comprises a stabilizing contact structure 15 , such that a rod-like structure may be inserted through the lumen of the tool and such rod-like structure spans the entire length of the tool inserting at the aperture at 20 and exiting an aperture 50 .
  • the region of the body most proximal to the stabilizing contact structure 15 may be tapered 25 so that a narrower diameter is present. In other embodiments, however, the diameter spanning the stabilizing contact structure and elongated body is the same.
  • the hollow elongated body 10 is substantially cylindrical in shape, but it will be appreciated that any elongated shape is envisioned.
  • the elongated body may be shaped to be ergonomically favorable for the hand of the user, including particular grasp regions thereupon, and in some embodiments, incorporating ergonomically favorable materials within and/or near such grasp regions, and such adaptations are envisioned, as well and are contemplated embodiments of this invention.
  • the handles of the tools of this invention may be further constructed to comprise common grips as seen, for example, in existing handles for similar tools, for example, screw drivers, and the like.
  • the stabilizing contact structure is comprised of a single piece, and in some embodiments, it is modular. In some embodiments, the stabilizing contact structure and elongated body are comprised of a single piece and in some embodiments, they are modular. In some embodiments, reference to components being “comprised of a single piece” refers to components cast molded, for example, or otherwise manufactured to assemble as such, or in some embodiments, such components may be prepared separately and seamlessly joined, for example via welding or appropriate other fixation methods, and still be considered to be “comprised of a single piece.
  • the stabilizing contact structure and elongated body are constructed separately or comprised of components not of a single piece, and may be comprised of the same or different materials, as will be appreciated by the skilled artisan.
  • any of the tools of this invention as described herein may have components comprised of a single piece and in some embodiments, the same may be modular.
  • reference to any components being “comprised of a single piece” refers to components cast molded, for example, or otherwise manufactured to assemble as such, to form a contiguous tool, or in some embodiments, such components may be prepared separately and seamlessly joined, for example via welding or appropriate other fixation methods, and still be considered to be “comprised of a single piece.
  • any of the tools of this invention as described herein may have components constructed separately or comprised of components not of a single piece, and may be comprised of the same or different materials, as will be appreciated by the skilled artisan.
  • the methods of preparation of any of the tools of this invention may include any appropriate conventional method for the same, including machining, cast molding, lithography and milling, and other methods, as known in the field.
  • the tools, kits, and methods of this invention are particularly suitable for use with any graft or implant for extraction from and/or application to a subject, respectively, for example, as described in PCT International Publication Number WO 2010/146575, WO 2010/146574, WO 2010/058400, WO 2009/066283, all of which are incorporated by reference herein in their entirety.
  • use of the stabilizing implements of this invention may additionally provide for an ability to measure the placement of the K-wire inserted therethrough, to ensure the centralized placement of the K-wire, and facilitate perpendicular alignment thereof.
  • the region of the body most proximal to the stabilizing contact structure 15 may comprise a joint region 45 such that the stabilizing contact structure 15 may be removably attachable to a longitudinal body section 10 .
  • Such region 45 may also represent a removable and interchangeable part, in one aspect of this invention.
  • FIGS. 1G and 1H provide external and cross sectional views, respectively, showing a lumen 50 , which does not vary in terms of its diameter, along the length of the tool.
  • the longitudinal body section may also comprise at least one connector 60 .
  • Such connector may be apically or basally located, for example as depicted in FIG. 2A versus FIG. 2 B.
  • a stabilizing implement of this invention wherein the longitudinal body section 10 contains a stabilizing contact structure containing part 45 having a first terminal region most proximally located to the stabilizing contact structure 15 and a second region which may be permanently or removably attached to a longitudinal body section 10 .
  • the stabilizing contact structure containing part 45 contains a proximal terminal region comprising laterally extending connectors 60 , which in turn connect to second 65 and third 70 partial stabilizing implement units, comprising a joint region proximally located to a stabilizing contact structure 15 , which joint region may be removably attachable to a longitudinal body section 10 (Paired FIGS. 2A and 2D , FIGS. 2B and 2E , and FIGS. 2C and 2F depict such removably attachable longitudinal body section insertion within said joint region).
  • a stabilizing contact structure may, in some embodiments, also comprise one or more connectors 60 , which connector stably connects at least a first stabilizing contact structure 65 and at least a second stabilizing contact structure 70 .
  • the joint regions 60 may be removably attachable to a longitudinal body section 10 ( FIGS. 2B , 2 C and 2 D, 2 F, respectively, depict such removable attachment of the longitudinal body section 10 insertion within stabilizing contact structure containing part 45 , whereby connectors 60 may be any form, whether permanently connected or removably connected).
  • such connectors may comprise any known appropriate material and structure.
  • such connectors may be in the form of a screw mechanism, snap mechanism, press fit, hook or tab insert, etc.
  • such connectors are permanently affixed, and in some embodiments, such connectors are removably attached, for example, modularly attached for expansion of the potential number of joined stabilizing contact structures to ensure optimal distribution of the implant/implants relative to the defect.
  • the implements according to this aspect may comprise or be removably connected to an array of stabilizing contact structures and proximally located body sections or partial body sections.
  • Such array may comprise any number or multiple of stabilizing contact structures and proximally located body sections or partial body sections, and any appropriate orientation for the same is envisioned and the examples shown in FIG. 2 should not be construed as limiting the invention in any way in terms of the multiple shown for the stabilizing contact structures and proximally located body sections or partial body sections (depicting in this case a multiple of 3 such structures) or orientation of the same (depicting in this case an array in a row or arranged around a central axis).
  • the entire outer rim of the stabilizing contact structure of the implement is fully in contact with the articular surface. Without being bound by theory, in some aspects, such structure facilitates perpendicular alignment of the implement with the articular surface to optimize implantation.
  • the hollow cylindrical body region adapted for insertion of a rod-like structure therethrough is sized to accommodate insertion of a K-wire
  • the rod-like structure is any structure so-shaped and sized as to be appropriate for surgical insertion within a tissue, for example, screws, pins, molly or molly bolt or a drill bit, which may, for example, remain inserted, and any anchored version of the same, e.g. anchor, hook, or other similar structure, as will be appreciated by the skilled artisan.
  • such structures may be comprised of a material reinforced plastic, stainless steel or other materials as herein described, as will be appreciated by the skilled artisan.
  • the material will be sufficiently sturdy so as to be appropriate for use in the types of procedures as described herein.
  • such material may be further transparent or translucent or otherwise provide markings to provide the user with a means of assessing placement and orientation.
  • the implement is inserted, positioned and stabilized in a perpendicular orientation relative to the implantation location (articular surface).
  • a K-wire is threaded through the implantation tool stabilizing implement and anchored into the bone with a resulting perpendicular orientation relative to the articular surface.
  • the implantation tool stabilizing implement may comprise a stopper, which stopper prevents leakage/dispersion of fluid used in the implantation procedure.
  • the tools of this invention are particularly suitable for use in tissue graft extraction and/or solid form or graft implantation.
  • the tools of this invention are particularly suited for extraction and/or implantation of a brittle solid material from a tissue, and in some embodiments, access to the region of extraction and/or implantation may necessitate tool stabilization in order to ensure optimal extraction and/or implantation.
  • the tools of this invention are particularly useful for bone and/or cartilage graft extraction, and solid form implantation within bone or osteochondral defects.
  • methods for the production of the tools as herein described are standard methods for producing related tools and reflect a consideration of the materials used and geometry desired in the tools.
  • plastic and ceramic tools may employ the use of molds, etc.
  • the implantation tool stabilizing implement is placed in an orientation with respect to a plane of the surface to which the implement is applied that is perpendicular thereto and is centralized within the defect site.
  • the stabilizing contact structure comprises an at least partially circular concave single piece structure, suitable for placement proximally to an articular surface, and the contact structure serves the function of ensuring a desired orientation of the implement with respect to a plane of the target surface.
  • the stabilizing contact structure may be constructed with varying diameters, which may correspond, in turn, with a size of a defect into which an implant will be inserted, or in some embodiments, which may correspond, in turn, with a size of a desired graft dimension, which may correspond, in turn, with a size of an implant or graft which will be inserted within a void created at or near the target surface.
  • the stabilizing contact structure comprises visible markings or demarcations on its surface, which provide an indication regarding the measurement of the length, width and/or circumference of underlying material onto which the same is placed (see for example, FIGS. 1A , 1 D, 35 etc.).
  • demarcations for example, are useful in providing a concrete assessment of the size of the defect and/or the size of implant needed in accordance with the methods of this invention, and serving as certain embodiments thereof.
  • the implantation tool stabilizing implement may be considered to be a cannulated tool, having a rod-like structure, such as a K-wire threaded therethrough.
  • the inner diameter of the implantation tool stabilizing implement including the inner diameter of the partially hollow cylindrical body insertion region, longitudinal body section and/or stabilizing contact structure is sized to fit for the insertion of a rod-like structure such as a K-wire of a given diameter, along the entire length of the implantation tool, i.e. the rod like structure inserts at an apex and spans the entire length of the tool, exiting therethrough at a base of the tool.
  • the insertion region adapted for insertion of a rod-like structure therethrough is located proximally to said at least one stabilizing contact structure.
  • the insertion region adapted for insertion of a rod-like structure therethrough is located distally to said at least one stabilizing contact structure.
  • the implementation tool may be sized such that a diameter of the tool is significantly larger than the diameter of the rod-like structure inserted therethrough.
  • the implementation tool may further incorporate an adapter, can be full or partial, for example, in some embodiments, the adapter may span a short length at the top of the tool, or the bottom of the tool, or in some embodiments, the adapter may span the length of the tool lumen.
  • such adapter may be comprised of flexible or non-flexible material, however care is taken to prevent lateral movement of the wire within the adapter.
  • the implantation tool stabilizing implement further comprises an adapter, which adapter possesses a diameter which is smaller than that of said partially hollow cylindrical body insertion region and which diameter is larger than a diameter of said rod-like structure and wherein said adapter is placed within said partially hollow cylindrical body insertion region and said rod-like structure may be inserted therethrough.
  • the diameter of the insertion region in comparison to a diameter of the rod-like structure is such that the rod-like structure insertion therethrough leaves minimal space between an outer surface of the rod-like structure and an internal surface of said insertion region.
  • the at least partially circular concave single piece structure is comprised of a transparent or translucent material.
  • the use of transparent or translucent material render the underlying tissue, for example, target cartilage and bone tissue and the harvest/lesion site to be visible, facilitating optimal, centered implantation or harvest, based on the central positioning of the tool.
  • tissue for example, target cartilage and bone tissue and the harvest/lesion site
  • the target tissue such as cartilage
  • the positioning of the implement on, for example, the articular surface located proximally thereto may be clearly seen, which positioning assures stable positioning of the implant and ultimately leading to ideal graft retrieval and/or implant/graft insertion.
  • the material may comprise silicon, plastic, or a polymeric material.
  • the material may be opaque, but with certain sections, which are partially exposed, for example, spaced holes in the opaque material, which allows visualization of what is placed through the lumen of the same, thereby being effectively transparent even when employing a solid material.
  • the at least partially circular concave single piece structure is comprised of an opaque material.
  • the at least partially circular concave single piece structure comprises an exposed circular scale bar, which scale bar facilitates the measurement of the diameter of the defect serving as the implantation site, and/or the diameter of the graft tissue being isolated (see for example, FIGS. 1A , 1 D, 35 etc.).
  • visualization of the size of implant or graft site is facilitated when the at least partially circular concave single piece structure comprising such a scale bar is comprised of a transparent or translucent material.
  • the scale bar facilitates the optimal choice in implant/graft diameter size, and in some embodiments, for example, such choice may also reflect use of multiple implants/grants and the ability to provide for the optimal distribution of the same within a target site.
  • the least one hollow cylindrical body and at least one stabilizing contact region are comprised of the same material. In some embodiments, according to this aspect, the at least one hollow cylindrical body and at least one stabilizing contact region are comprised of a metal, metal alloy, polymers, silicon, ceramic, glass or plastic.
  • the at least one hollow cylindrical body and at least one stabilizing contact region are comprised of different materials.
  • the at least one hollow cylindrical body is comprised of a metal or metal alloy or a ceramic.
  • the at least one partially hollow cylindrical body insertion region is comprised of a plastic or glass or any method as described for use in connection with another tool of this invention.
  • the invention provides a kit comprising an implantation tool stabilizing implement of this invention.
  • the rod-like structure may be so constructed as to contain indicator marks indicating the depth of insertion of the rod-like structure within a graft isolation/implantation site, for example, and in some embodiments, the rod-like structure may contain laser marks to indicate the depth of insertion of the same.
  • this invention provides a drill bit protective sheath, comprising:
  • the drill bit assembly unit may contain markings or set extension intervals such that advancement beyond a certain point is readily seen or prevented, providing a means to set a desired drilling depth.
  • this invention provides a drill bit assembly unit suitable for drilling tissue, said drill bit assembly comprising:
  • the drill bit and/or drill bit protective sheath is comprised of a glass, plastic, metal or metal alloy material, or in some embodiments, can be made of different materials, as will be appreciated by the skilled artisan.
  • the invention contemplates providing a drill bit or drill bit protective sheath as herein described alone, or in a kit of parts.
  • a drill bit assembly is positioned appropriately and used, for example, to gain access to the underlying target tissue for a graft procedure or in some embodiments, for shaping an implantation site more optimally in order to best incorporate an implant.
  • a drill bit protective sheath is placed over the rod-like structure and the drill bit is inserted therein, over the rod-like structure and within the protective sheath and attachment of the assembly to an appropriate drill.
  • the drill bit is placed over the rod-like structure followed by fitting of the drill bit protective sheath over the drill bit and attachment of the assembly to an appropriate drill.
  • the drill bit is advanced within the target tissue site, optionally and in some embodiments, to a depth regulated by the stopper mechanism described hereinabove.
  • FIG. 3 an embodied rod-like structure 75 ( FIG. 3A ) is shown.
  • Such rod-like structure may be positioned internally to a drill bit 85 ( FIG. 3B , with a cross section of the bit being at “F” shown in FIG. 3C ).
  • the drill bit may comprise at least one lateral extension 80 , which, in one embodiment, when fitted within the drill bit protective sheath 90 ( FIG. 3D depicts the sheath, with cross section at “G” being depicted in FIG. 3E ) within the fitted containment region of the sheath 95 , the engagement of the lateral extension of the drill bit with the fitted containment part constitutes a stopper mechanism.
  • the drill bit in accordance with this aspect may be considered to be a cannulated drill bit, accommodating the insertion of a rod-like structure therewithin.
  • the drill bit protective sheath comprises a part of a stopper mechanism facilitating regulation of the drill depth achieved, and safeguarding against drilling beyond a desired depth. In other embodiments, the drill bit protective sheath further aids in prevention of or mitigation of any damage to target tissue at the drilling region, for example by protecting the same from direct contact with a rotating drill bit. In some embodiments, the drill bit protective sheath height may be chosen to specifically facilitate regulation of the depth of the drilling achieved.
  • the drill bit protective sheath will accommodate any commercially available, standard drill-bit known in the art, which will not comprise lateral extensions and the same is still useful in any of the methods and as part of any of the kits as described herein, as will be appreciated by the skilled artisan.
  • Such standard bit will not, when used with the drill bit protective sheath, provide for a stopper mechanism, but the skilled artisan will appreciate how to regulate the drilling depth manually.
  • the drill bit protective sheath will be first positioned over the K-wire, with an appropriate drill bit being threaded over the K-wire and through the drill bit protective sheath, for example, when the drill bit diameter is appropriately sized so that it is appropriate for the final hole required for the implant insertion. In some embodiments, the drill bit is first threaded over the K-wire and then the drill bit protective sheath is applied thereunto.
  • the cannulated drill bit will prepare a hole or void in the desired target tissue having a depth, which is shorter, longer or the same as that of the final depth of the hole or void required for implant or graft insertion.
  • this invention provides implantation alignment tool comprising:
  • At least a portion of a first region, at least a portion of a second region or a combination thereof form terminal contacts with a boundary of an implantation site.
  • the substantially cylindrical hollow body comprises a material that is a metal, metal alloy, ceramic, glass or plastic or any appropriate material described herein with respect to other tools of this invention.
  • the substantially hollow stabilization structure comprises a material as herein described and may, in some embodiments, incorporate a flexible or shock-absorbing material, such as, a silicon, sponge, a polymer, a biocompatible polymer or others as will be appreciated by the skilled artisan.
  • a flexible or shock-absorbing material such as, a silicon, sponge, a polymer, a biocompatible polymer or others as will be appreciated by the skilled artisan.
  • an advantage to the use of the implantation alignment tool as herein described is that when it is inserted correctly, it allows the surgical cutter to be threaded thereunto and promotes stable and perpendicular positioning of the cutter even during tamping and/or prevents k-wire bending and/or permits bone collapse within the created void during cutting.
  • the reduction of the diameter and reduction of material in the distal end of the implantation alignment tool promotes maintenance of a gap between the bone mark and the alignment tool outer surface, so that when the cutter is employed, this gap enables the bone to collapse inside the surgical cutter during tamping enhancing the ease and accuracy of the use of the cutter in carrying out the cutting procedure.
  • FIG. 4A-4B and FIG. 4E providing a higher magnification view of the alignment tool, one embodiment of an implantation alignment tool is shown.
  • a substantially cylindrical hollow body 100 is seen, which hollow body is adapted for insertion of a rod-like structure therethrough.
  • substantially hollow stabilization structure 120 is terminally adjoined to the body section 100 .
  • the first region 110 has a first diameter, which, in some embodiments is smaller than a diameter of the body section 130 and in some embodiments is equal in diameter to that of the body section 130 .
  • the substantially hollow stabilization structure also contains a second region having a second diameter 140 , which in this embodiment, is smaller than the diameter of the hollow body section 130 and in some embodiments, is larger than the first diameter 110 .
  • the first region is positioned between a joint region of the substantially hollow stabilization structure attaching the same to the hollow cylindrical body and the second region.
  • FIGS. 4C-FIG . 4 D insertion of a rod-like structure 75 through a lumen of the implantation alignment tool is shown, with FIG. 4D providing a view of a cross section taken from the tool of FIG. 4C , at the dotted line along the midline of the tool.
  • FIG. 4E provides a magnified view of an embodied stabilization structure inserted within a potential graft and/or implantation site.
  • the first region 110 has a diameter that is smaller than that of the hollow body section 130 , yet is larger in diameter than that of the second region 140 .
  • the method comprises the steps of inserting a rod-like structure within an implantation site in a subject with the aid of an implement orienting said rod-like structure to be in an orientation perpendicular to a plane of a surface of said target implantation site; applying an implement comprising a terminally located drill bit over a rod-like structure and drilling an area of tissue in said subject which is less than that of a desired implantation site, or applying an implantation alignment tool comprising a terminal modification to approximate a drill bit, or screw-like structure, or structure approximating a structure commonly associated with a screwdriver tool, for example, a “Phillips head” type structure, or in some embodiments, any structure that facilitates creating a hole or void within the tissue to which the tool is applied.
  • FIGS. 4F-4I the terminal modification 120 depicted in FIGS. 4F and 4H indeed approximate a drill bit or “Phillips head” attachment, respectively.
  • FIGS. 4G and 4I represent cross sections of FIGS. 4F and 4H , respectively, showing that the tool may comprise an internal lumen 105 , through with a rod-like structure may be inserted.
  • the implement may be positioned within a drill bit protective sheath, as herein described.
  • a first region is proximal to a joint region and said second region is proximal to a first region and distal to said joint region, as depicted in FIGS. 4 and 5 .
  • a first region is proximal to a joint region and said second region is proximal to a first region and distal to said joint region, such as for example, in FIG. 5D , however, a third region 150 may have still a third diameter, which is equal to that of the diameter of the second region 140 , or larger than a diameter of the second region 140 .
  • the invention also contemplates an implantation alignment tool wherein the third region has a third diameter which is smaller than the diameter of the second region 140 .
  • a stabilization structure may comprise alternating first and second regions arranged in a desired pattern ( FIGS. 5A-5C , and FIGS. 5E-5H ).
  • a second region or at least a portion thereof is located at a distal terminus of said stabilization structure, for example, as depicted in FIGS. 5A-5C , 5 G and 5 H.
  • first and second regions of the stabilization structure are possible, which structures facilitate a tight fit of the alignment tool within a defect site, which in some embodiments facilitates anchoring the tool therewithin.
  • the implantation alignment tool may comprise a “Phillips head” terminal modification FIG. 5J , which may also serve as a drill bit, as described.
  • the implantation alignment tools of this invention are envisioned to approximate the structure depicted in FIG. 5I , whereby the stabilization structure contains only a single region 140 which has a diameter narrower than that of the hollow body section 130 .
  • a stabilization structure may comprise a second region contains terminally extending scoring protrusions, which serve to score the walls of the defect/implantation site, to encourage blood flow within the implantation site.
  • scoring of part of the walls, including the floor of the defect site does not preclude the preparation of a smoothed tissue implant site.
  • stabilization structure comprises alternating first and second regions resembling a screw structure, for example, as depicted in FIG. 5H .
  • stabilization structure comprises alternating first and second regions resembling a screw structure, for example, as depicted in FIG. 5H .
  • a stabilization structure may comprise alternating first and second regions along a horizontal axis of said stabilization structure.
  • FIGS. 5G-5H depict such alternating first and second regions along a horizontal axis of said stabilization structure.
  • 3 alternating first and second regions are depicted at intervals along a horizontal axis of the implantation alignment tool. Such intervals may be equi-spaced, or the spacing may be non-equidistant, as will be appreciated by the skilled artisan.
  • FIG. 5H depicts a helical overall arrangement of alternating first and second regions. It will be appreciated by the skilled artisan that the pitch of such helical structure, for example including the width of the first and second regions, and/or the angle of rotation of each may vary, and such variability is contemplated by the invention.
  • a stabilization structure may comprise alternating first and second regions along a vertical axis of said stabilization structure. Embodied aspects of such arrangements are depicted in FIGS. 5A , 5 B, 5 C, 5 E and 5 F.
  • FIGS. 5A , 5 B and 5 C a similar overall orientation of the first and second region is shown, where the regions substantially alternate along a vertical axis, wherein the most terminal region of the tool, which is most proximally placed to the implantation or graft site is the second region 110 , and the alternating placement of the first region 140 does not promote terminal placement, which is most proximally placed to the implantation or graft site of the first region.
  • FIGS. 5E and 5F depict embodiments, whereby both first and second regions contain at least a portion thereof, which may be in contact with the implantation or graft site.
  • the implantation tool alignment implement fits over the rod-like structure, which has been implanted within a target tissue site, it contains a hollow substantially cylindrical body 100 , which may have a diameter such that a tight fit is formed between an outer surface of the rod-like structure and an inner surface of the hollow body.
  • the diameter of the hollow body may be larger than that of the rod-like structure, such that the insertion of the rod-like structure therewithin is stabilized by the presence of at least one adapter 155 within the lumen of the hollow body section.
  • the adapter may possess all of the embodied aspects described for the adapter in connection with the implantation tool stabilizing implement described hereinabove.
  • the implantation tool alignment implement insertion over the rod-like structure allows for incorporation of a terminus of the implement within the drilled target tissue site in a press fit manner.
  • such structure and organization provides for an orientation of the implement to be perpendicular to a target tissue surface.
  • the implantation tool alignment implement contains a terminal modification to include a reduction of the diameter 110 . 140 , 150 as compared to the body section diameter located proximally thereto 130 .
  • the distal modification creates a step-like structure in the alignment implement, which may be understood to serve as a stabilizing mechanism, preventing unlimited advancement of the alignment implement within the drilled area of the target tissue site.
  • the distal modification creating a step-like structure in the alignment implement can be readily prepared by standard means in the art, as will be appreciated by the skilled artisan, for example, by removing material from the perimeter of a terminus of the alignment implement, by machining, etc.
  • the alignment implement may be comprised of any appropriate material.
  • Non-limiting examples of the same may include any biocompatible material, such as a metal, plastic or glass, comprised of a polymer, ceramic, etc.
  • the invention includes a kit comprising an implantation tool alignment implement as herein described, alone or in combination with any of the tools and/or parts as herein described, including solid implants of any desired size or size range, as will be appreciated by the skilled artisan.
  • this invention provides a tissue harvester assembly, comprising:
  • the surgical cutter is so constructed so as to comprise a substantially cylindrical hollow body, which in turn may provide for insertion of the implantation tool alignment implement therewithin.
  • the surgical cutter may also contain identification marks that provide a guide as to the insertion depth of the cutter, for example, by incorporating laser marks on the outer surface of the cutter region inserting within the target tissue.
  • the fact that the implantation tool alignment implement possesses a terminal modification to contain a reduction in diameter 140 , which is also narrower than the drilled region, provides for the presence of a gap between the bone, for example, subchondral bone and alignment implement.
  • the presence of such a gap enables the tide mark to collapse inside the surgical cutter while the same is being tamped down as part of the procedure to enlarge the drill site thereby facilitating greater penetration of the cutter and in some embodiments, greater ease and accuracy of insertion and enlargement of the drilled tissue site.
  • FIGS. 6-7 showing some embodied surgical cutters for use with the other tools and kits as herein described and as part of the methods of this invention, embodied surgical cutters are shown.
  • a tamping head 160 is shown within a handle 165 , connected to a shaft 170 of the cutter tool.
  • the cutter tool may optionally comprise a security nut locker 175 between the surgical cutter tip 180 and handle 165 , and a blade cutter tip, for example, a round blade cutter metal tip 180 .
  • the surgical cutter will be cannulated, i.e. it will contain an inner channel through which an alignment tool and/or rod-like structure may insert 185 .
  • the surgical cutter may be a modular tool, in some embodiments, and thus certain elements of the cutter tool may be detachable, as will be appreciated by the skilled artisan.
  • the handle and upper tool region is detachably connected to a blade cutter tip region, attachable at, for example, a connection point 220 between the round blade cutter tip and the round blade cutter handle.
  • the blade is interchangeable, for example, and blade tips 200 are exchangeable.
  • FIG. 6-7 provides an exploded view of exemplified surgical cutters/reamers/smoothers of this invention, and in some embodiments, as part of a kit or for use in a method of this invention, which exploded view facilitates ease of view of the individual parts of the tool.
  • the exploded view also provides an understanding as to how the cutter/reamer/smoother may be a modular tool, enabling rejoining of some of the parts of the tool with alternate embodied elements, for example, the depicted handle with another cutter tip or vice versa.
  • the surgical cutter/reamer/smoother comprises a removable blade cutter head 180 /smoothing head 300 /reamer head 310 is adapted for connection via 200 , which is removably attachable to a handle part 230 .
  • the removable blade cutter head 180 /smoothing head 300 /reamer head 310 may comprise adaptations for effective joining with an appropriately modified handle part, for example, a “nut”-like locker 175 , and for example, a “teeth”-like structure in the removable blade cutter head 210 may fit and thereby join a corresponding grooved section on the handle part 220 .
  • the surgical cutter/smoother/reamer may comprise demarcations 195 , which provide a means for depth measurement of the advancement of the tool within the tissue void.
  • surgical cutter may refer to a tool that creates a void in a tissue, or in some embodiments removes a desired amount of tissue, or in some embodiments, enlarges a void in a tissue, or in some embodiments, shapes a void in a tissue.
  • the prepared void may be enlarged laterally or in terms of its depth, via the use of a reamer as herein described.
  • the reamer may have a comparable structure to the surgical cutter, including demarkations identifying a depth achieved when employed in situ.
  • the prepared void may be smoothed in terms of the relative uniformity of the boundary surface via the use of a smoother as herein described.
  • the choice of term with respect to “surgical cutter” or “reamer” or “smoothing tool”, may depend upon whether the indicated tools is used only for creating a void/removing tissue or enlarging/shaping a void, respectively. It will be appreciated that a single tool with interchangeable heads may be used to accommodate the three functions of cutting, reaming and smoothing a void, and the term “surgical cutter” and any embodiment as described with respect thereto, may be understood to encompass a tool that may create/enlarge/smooth a void, as well.
  • the smoothing tool may comprise, in some embodiments, a tamping head 160 , within a handle part 165 .
  • the smoothing tool extension 180 is positioned distally to the handle part 165 .
  • the smoothing tool may further comprise a scale bar and measuring aspect 195 , which allows for measurement of the shaped region created for implantation, as herein described.
  • the unique tools of this invention for example via the unique handles, facilitate tissue removal without “wobbling”, to ensure the boundaries of the void created are not expanded laterally.
  • implantation of the same may be commenced.
  • the cutter, reamer and smoother may comprise markings, which facilitate measurement of the void created/smoothed with the same.
  • another measurement tool may be thus utilized for the measurement of the void into which the implant or graft will be fit/inserted.
  • FIGS. 7F and 7G show a handle, which may further serve to grip, insert, or extract the k-wire or k-wire adapter. The handle may be cannulated, as evident in FIG. 7G .
  • the invention provides an implantation scoring tool comprising:
  • the invention provides kits and/or methods making use of the implantation scoring tools as herein described.
  • the scoring tool may exist in a compact and deployed position, facilitating easy insertion within the defect/implantation site.
  • the scoring tool when deployed facilitates increased penetrance of proximally located blood into the site promoting better implant/graft incorporation therewithin.
  • the scoring tool will comprise at least an elongated body and at least one laterally extending protrusion therefrom, and in some embodiments, the scoring tool may optionally comprise a hollow along the elongated body through which a rod-like structure as herein described may insert therethrough.
  • this invention provides a graft or solid implant introducing tool suitable for the introduction of brittle grafts or solid implants, said graft or solid implant introducing tool comprising:
  • the introducing tool or introducer comprises a piston assembly 245 containing a first terminus comprised of a shock-absorbant material 270 and an advancer or “tamper” structure located at a second terminus 245 .
  • the piston assembly of the introducer inserts within a substantially hollow substantially cylindrical body 255 which comprises a graft or solid implant containment gripping part 265 which holds the graft or solid implant 275 .
  • such arrangement allows, inter alia, for controlled insertion of the implant, with concordant protection of the boundaries of the implant site.
  • the graft or solid implant introducing tool comprises a hollow along a longitudinal axis throughout the elements of the tool, facilitating placement of the tool over a rod-like structure.
  • the graft or implant may comprise a hollow along a longitudinal axis therein, as well for ease of placement thereupon.
  • the tamper element contains a hollow along a longitudinal axis throughout the tamper, as well ( FIG. 9H ).
  • the graft or solid implant introducing tool comprises a combined assembly, whereby the tamper can advance the implant, optionally comprising a terminally located gripper, and a modified head at the second terminus, such that the tamper and implant are cannulated and can be placed over the rod like structure within the void, and force may be applied to the tamper terminus for optimum fit of the implant within the implantation site.
  • the introducing tool facilitates proper orientation of the implant within the site; in some embodiments the tool is helpful in maintaining safe placement of the implant during arthroscopy procedures/implantation procedures.
  • this invention provides a graft or solid implant introducing tool suitable for the introduction of brittle grafts or solid implants, said graft or solid implant introducing tool comprising:
  • the stopper indicator region may include identifying marks on both the graft or solid implant containment part and on the sheath, and their alignment or combined configuration identifies optimal placement of said graft or implant.
  • the sheath may comprise a “window” or visible region such that when said the graft or solid implant containment part and achieves a desired advancement therewithin, visualization of the containment part within the window, or visualization of a symbol within such window serves as the identifying mark.
  • this invention provides a graft or solid implant introducing tool suitable for the introduction of brittle grafts or solid implants, said graft or solid implant introducing tool comprising:
  • a graft or implant is placed within a gripping part of a piston assembly, or, in some embodiments, within a gripping part of the graft or solid implant introducing tool, and the tool advances the implant or graft within an implantation site.
  • a graft or implant is cannulated, or in some embodiments, comprises a void along a longitudinal axis spanning a length of such graft or implant, which graft or implant may then be threaded onto a rod-like structure.
  • rod-like structure is itself threaded through the solid implant introducing tools of this invention, and the graft or implant abuts the first terminus or is contained within a gripping part of located at the first terminus of the solid implant introducing tool.
  • such rod-like structure is itself threaded through the solid implant introducing tools of this invention, and the graft or implant abuts the first terminus or is contained within a gripping part of located at the first terminus of the solid implant introducing tool.
  • such rod-like structure is implanted within a tissue containing a prospective implantation site, and said graft or implant and the solid implant introducing tool are both threaded onto the rod-like structure in situ, whereby the advancing part of the solid implant introducing tool is used to advance the graft or implant to create an appropriate fit of the graft or implant within the implant site.
  • FIGS. 10 and 11 provide a general description of contemplated embodiments of the tools of this invention/means for use in accordance with the methods of this invention, including a close up view of placement and/or insertion of the same with respect to a surface of or within a target tissue.
  • FIG. 12 schematically depicts an embodied extractor tool 275 , which in some embodiments, removes the implantation alignment tool upon application of the surgical cutter thereon.
  • the extractor tool 275 fits within an apical void 310 in the surgical cutter 300 and attaches onto an implantation alignment tool 320 located beneath the cutter.
  • FIG. 13 schematically depicts certain steps in an embodied implantation procedure using embodied tools of this invention, whereby a thicker rod like-structure is replaced with a thinner rod-like structure following preparation of the implantation site, for eventual threading and implantation of a graft or implant within such site.
  • the ultimate graft/implant for insertion will be cannulated, having a diameter that may be narrower than that of a first rod-like structure inserted within an implantation site.
  • removal of the implantation alignment tool may be accomplished, for example, via use of the extractor tool, following which the first rod-like structure 330 is removed from the implantation site ( FIG. 13B ) and a second thinner rod-like structure is inserted.
  • the implantation alignment tool is not removed, and only the first rod-like structure 330 is removed from the implantation site and a second thinner rod-like structure is inserted.
  • the smoother/reamer/cutter/shaper will contain an adapter 350 , which inserts within the lumen of the smoother/reamer/cutter/shaper.
  • the adapter may extend vertically for a substantial length within the lumen of the smoother/reamer/cutter/shaper ( FIG. 13C ).
  • a second thinner rod-like structure 360 may then be inserted ( FIG. 13D ).
  • an apical protective cap 370 may be applied to the second thinner rod like structure 360 ( FIG. 13E ). Such a cap may be sufficiently strong so that application of force to the same advances the second thinner rod-like structure 360 deeper into the underlying tissue ( FIG. 13F ).
  • the cap may be fitted with extensions, which insert into the lumen of the smoother/reamer/cutter/shaper such then when force is applied, the second thinner rod like structure 360 is not bent.
  • the protective cap and adaptor may then be removed ( FIG. 13G ) and smoother/reamer/cutter/shaper are removed, as well ( FIG. 13H ), following application of the implant
  • the second rod-like structure may then be removed, leaving the graft/implant within the desired implantation site, in tight fitted, optimally placed manner.
  • FIGS. 14 and 15 provides flow charts illustrating embodied procedures for introducing a graft or solid implant into a subject, making use of the tools of this invention.
  • the tools and methods and kits as herein described may be used to implant one or more grafts or implants and the same may be accomplished via obvious modifications, for example, creation of multiple voids, or shaping of a larger void in order to accommodate multiple grafts or implants, and that the same may provide for an ability to repair larger osteochondral or bone defects, as the skilled artisan will appreciate.
  • Articles such as “a,”, “an” and “the” mean one or more than one unless indicated to the contrary or otherwise evident from the context. Claims or descriptions that include “or” or “and/or” between members of a group are considered satisfied if one, more than one, or all of the group members are present in, employed in, or otherwise relevant to a given product or process unless indicated to the contrary or otherwise evident from the context.
  • the invention includes embodiments in which exactly one member of the group is present in, employed in, or otherwise relevant to a given product or process.
  • the invention also includes embodiments in which more than one, or all of the group members are present in, employed in, or otherwise relevant to a given product or process.
  • the invention provides, in various embodiments, all variations, combinations, and permutations in which one or more limitations, elements, clauses, descriptive terms, etc., from one or more of the listed claims is introduced into another claim dependent on the same base claim unless otherwise indicated or unless it would be evident to one of ordinary skill in the art that a contradiction or inconsistency would arise.
  • elements are presented as lists, e.g. in Markush group format or the like, it is to be understood that each subgroup of the elements is also disclosed, and any element(s) can be removed from the group.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Molecular Biology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Dentistry (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Prostheses (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Adornments (AREA)
US14/441,985 2012-11-12 2013-11-11 Tools and Systems for Solid Form and Graft Implantation Abandoned US20150289889A1 (en)

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WO2017173280A1 (en) * 2016-04-01 2017-10-05 New York Stem Cell Foundation, Inc. Customized hybrid bone-implant grafts
US10046084B2 (en) 2009-06-15 2018-08-14 Cartiheal (2009) Ltd. Solid forms for tissue repair
US10214714B2 (en) 2013-12-30 2019-02-26 New York Stem Cell Foundation, Inc. Perfusion bioreactor
US10342897B2 (en) 2012-05-17 2019-07-09 Cartiheal (2009) Ltd Biomatrix hydrogels and methods of use thereof
WO2019135216A1 (en) 2018-01-02 2019-07-11 Cartiheal (2009) Ltd. Implantation tool and protocol for optimized solid substrates promoting cell and tissue growth
US10799251B2 (en) * 2012-11-12 2020-10-13 Cartiheal (2009) Ltd. Tools and systems for solid form and graft implantation
US10806823B2 (en) 2013-02-13 2020-10-20 Cartiheal (2009) Ltd. Solid substrates for promoting cell and tissue growth
US11471285B2 (en) 2013-12-30 2022-10-18 New York Stem Cell Foundation, Inc. Tissue grafts and methods of making and using the same

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CN107567312B (zh) 2015-05-06 2022-06-17 卡尔蒂希尔(2009)公司 优化的固体基质、与其一起使用的工具及其用于促进细胞和组织生长的用途

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10046084B2 (en) 2009-06-15 2018-08-14 Cartiheal (2009) Ltd. Solid forms for tissue repair
US10702627B2 (en) 2009-06-15 2020-07-07 Cartiheal (2009) Ltd. Solid forms for tissue repair
US10342897B2 (en) 2012-05-17 2019-07-09 Cartiheal (2009) Ltd Biomatrix hydrogels and methods of use thereof
US10799251B2 (en) * 2012-11-12 2020-10-13 Cartiheal (2009) Ltd. Tools and systems for solid form and graft implantation
US10806823B2 (en) 2013-02-13 2020-10-20 Cartiheal (2009) Ltd. Solid substrates for promoting cell and tissue growth
US11116873B2 (en) 2013-02-13 2021-09-14 Cartiheal (2009) Ltd. Solid substrates for promoting cell and tissue growth
US11878090B2 (en) 2013-02-13 2024-01-23 Cartiheal (2009) Ltd. Solid substrates for promoting cell and tissue growth
US10214714B2 (en) 2013-12-30 2019-02-26 New York Stem Cell Foundation, Inc. Perfusion bioreactor
US11471285B2 (en) 2013-12-30 2022-10-18 New York Stem Cell Foundation, Inc. Tissue grafts and methods of making and using the same
WO2017173280A1 (en) * 2016-04-01 2017-10-05 New York Stem Cell Foundation, Inc. Customized hybrid bone-implant grafts
US11357890B2 (en) 2016-04-01 2022-06-14 New York Stem Cell Foundation, Inc. Customized hybrid bone-implant grafts
WO2019135216A1 (en) 2018-01-02 2019-07-11 Cartiheal (2009) Ltd. Implantation tool and protocol for optimized solid substrates promoting cell and tissue growth

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Publication number Publication date
EP2916779B1 (en) 2017-03-01
IL238033B (he) 2019-09-26
US10799251B2 (en) 2020-10-13
SI2916779T1 (sl) 2017-08-31
HK1214117A1 (zh) 2016-07-22
EP2916779A2 (en) 2015-09-16
HUE034310T2 (en) 2018-02-28
IL238033A0 (he) 2015-05-31
DK2916779T3 (en) 2017-06-12
US20190053815A1 (en) 2019-02-21
HRP20170800T1 (hr) 2017-10-20
WO2014072982A2 (en) 2014-05-15
RS56046B1 (sr) 2017-09-29
ES2627094T3 (es) 2017-07-26
WO2014072982A3 (en) 2014-06-26

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