WO2020226599A1 - Nouveauté dans des prothèses de poignet - Google Patents

Nouveauté dans des prothèses de poignet Download PDF

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Publication number
WO2020226599A1
WO2020226599A1 PCT/TR2020/050397 TR2020050397W WO2020226599A1 WO 2020226599 A1 WO2020226599 A1 WO 2020226599A1 TR 2020050397 W TR2020050397 W TR 2020050397W WO 2020226599 A1 WO2020226599 A1 WO 2020226599A1
Authority
WO
WIPO (PCT)
Prior art keywords
carpal
wrist
prosthesis
extension piece
anatomic
Prior art date
Application number
PCT/TR2020/050397
Other languages
English (en)
Inventor
Hayri DURSUNOGLU
Levent KUCUK
Burcin KECECI
Original Assignee
Hipokrat Tibbi Malzemeler Imalat Ve Pazarlama Anonim Sirketi
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 Hipokrat Tibbi Malzemeler Imalat Ve Pazarlama Anonim Sirketi filed Critical Hipokrat Tibbi Malzemeler Imalat Ve Pazarlama Anonim Sirketi
Publication of WO2020226599A1 publication Critical patent/WO2020226599A1/fr

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Classifications

    • 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
    • A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
    • A61F2/4261—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for wrists
    • 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
    • A61F2002/30108—Shapes
    • A61F2002/30199—Three-dimensional shapes
    • A61F2002/30242—Three-dimensional shapes spherical
    • A61F2002/30245—Partial spheres
    • 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
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
    • 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
    • A61F2002/30461—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements sutured, ligatured or stitched
    • A—HUMAN NECESSITIES
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    • 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
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    • 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
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/305—Snap connection
    • A—HUMAN NECESSITIES
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    • 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
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    • 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
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30576—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs
    • A61F2002/30578—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs having apertures, e.g. for receiving fixation screws
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • 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
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    • 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
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
    • 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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772—Apertures or holes, e.g. of circular cross section
    • A61F2002/30784—Plurality of holes
    • 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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/3082—Grooves
    • A61F2002/30827—Plurality of grooves
    • 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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • A61F2002/30891—Plurality of protrusions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • 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
    • A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
    • A61F2/4261—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for wrists
    • A61F2002/4264—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for wrists for radio-carpal joints
    • A—HUMAN NECESSITIES
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    • 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
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    • A61F2/4261—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for wrists
    • A61F2002/4266—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for wrists for ulno-carpal joints
    • 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
    • A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
    • A61F2/4261—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for wrists
    • A61F2002/4271—Carpal bones
    • 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
    • A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
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    • A61F2002/4271—Carpal bones
    • A61F2002/4287—Proximal carpal row, i.e. bones adjacent the radius and the ulna
    • A—HUMAN NECESSITIES
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    • 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
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    • A61F2002/4271—Carpal bones
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    • 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
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    • A61F2002/4271—Carpal bones
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    • 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
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    • A61F2002/4287—Proximal carpal row, i.e. bones adjacent the radius and the ulna
    • A61F2002/4294—Triquetrum

Definitions

  • the present invention relates to a prosthesis which is generally used in orthopedic wrist operations, is attached to the wrist of the patients whose wrist joint does not perform its task and performs the task of the natural wrist joint in a more efficient manner.
  • the invention is an orthopedic product which can be used for the reconstruction of the defects that occur due to distal radius and/or any reason in the carpal bones .
  • the invention particularly relates to an orthopedic prosthesis in the medical field which is designed for eliminating the painful joint deformations caused by osteoarthritis, rheumatoid arthritis, traumatic arthritis, tumor, fracture etc .
  • the prosthesis applications made specific to the symptoms experienced by the patient can eliminate these difficulties.
  • the prostheses are artificial products which can be used instead of any organ or tissue which are absent in the body.
  • the prosthesis in orthopedic applications is generally described as an implant which is located into the bone or on the surface of the same by surgery in order to replace a diseased joint or a joint that lost its integrity .
  • various prostheses are used in order to eliminate the damage in large bone defects that occur in wrist, in the tumoral or traumatic, degenerative applications. In the applications known in the art, there is no such a prosthesis which can be used tumoral or traumatic, degenerative at once .
  • suture holes In the state of the art, there are no suture holes on the anatomical radial component dorsal surface.
  • the suture holes especially in traumatic situations, assist to eliminate the risk of bone tissue remaining on the prosthesis or occurrence of adhesions between the prosthesis and the tendon.
  • connection of the radial shaft and the radial metaphyseal is enabled with the screw system in the modular systems.
  • the screw system leads to a reduction in the stem diameter, affects the resistance of the stem negatively and leads to the risk of early loosening in the rotational (rotation) movements that will occur in time.
  • a reduction in diameter and insufficiency in strength occurs in the modular stems which provides connection with the screw and early loosening risk in rotational (rotation) movements occurs.
  • the prostheses applied to the wrist have a more plain and single-plan surface. These conditions limit the movement area of the wrist after prosthetic surgery.
  • the aim of the invention is to eliminate the painful joint deformations caused by osteoarthritis, rheumatoid arthritis, traumatic arthritis, tumor, fracture etc. in the medical field and to enable the wrist appearance to be similar to the real by means of the prosthesis serving as a joint.
  • the problem can be solved at once with one wrist prosthesis set with the invention.
  • suture holes on the anatomical radial component dorsal surface there is one or a plurality of suture holes on the anatomical radial component dorsal surface. Especially in traumatic situations, the risk of bone tissue remaining on the prosthesis or occurrence of adhesions between the prosthesis and the tendon is eliminated by means of the holes on the anatomic radial component dorsal surface that enables the suture passages.
  • the invention has a design that is suitable for the anatomic radial component metaphyseal region sigmoid notch, it can be used when necessary in a manner that can mimic the distal radioulnar joint.
  • the carpal component in the invention is fixed to the metacarpals except for the metal back, stem with the lock screws. This situation eliminates the early loosening risk by means of increasing the stability (durability) of the carpal component .
  • connection of the radial shaft and the radial metaphyseal is provided with the conical intertwinement system in the modular stems. Therefore, the stability (durability) of the stem increases and the risk of early loosening that will occur with micro movements in time decreases .
  • the radial stems in the invention are designed by using two different coating methods such that they are suitable for both cemented and cementless applications. This provides an option for the stem which will be used in the surgical process based on the current bone stock of the patient and decreases the risk of early loosening in rotational (rotation) movements.
  • the polyethylene carpal bearing in the invention is designed to mimic the real anatomy of the wrist carpal bones.
  • the polyethylene carpal bearing which can be produced in different sizes and dimensions can mimic the condition of the carpal bones by means of the scaphoid, lunatum, triquetrum. This situation also contributes to the stability (durability) of the prosthesis after the implantation of the prosthesis.
  • this product which is an orthopedic prosthesis and its components to be used in the reconstruction of the defects occur as a result of the distal radius and/or any reason in carpal bones, are shown in the attached figures.
  • Figure 1 - is a perspective view of the components and elements (Primary Hand-Wrist) of the illustrative embodiment of the invention in a disassembled manner.
  • Figure 2 - is a perspective view of the components and elements (Tumor Hand-Wrist) of the illustrative embodiment of the invention suitable for use in tumoral or traumatic situations in a disassembled manner.
  • Figure 3a - is a bottom perspective view of the carpal component which has the movement capability together with the invention.
  • Figure 3b - is a side sectional view of the carpal component which has the movement capability together with the invention.
  • Figure 3c - is a top view of the carpal component which has the movement capability together with the invention.
  • Figure 4a - is a bottom perspective view of the polyethylene carpal bearing which has the movement capability together with the invention.
  • Figure 4b - is a side view of the polyethylene carpal bearing which has the movement capability together with the invention.
  • Figure 4c - is a top view of the polyethylene carpal bearing which has the movement capability together with the invention.
  • Figure 4d - is a side sectional view of the polyethylene carpal bearing which has the movement capability together with the invention.
  • Figure 4e - is a side sectional view of the polyethylene carpal bearing which has the movement capability together with the invention.
  • Figure 5a - is a bottom perspective view of the anatomic radial component which has the movement capability together with the invention.
  • Figure 5b - is a side sectional view of the anatomic radial component which has the movement capability together with the invention.
  • Figure 5c - is a view of the suture holes on the anatomic radial component which has the movement capability together with the invention.
  • Figure 5d - is a side view of a recess which is located on the side surface of the anatomic radial component that has the movement capability together with the invention and fits to the metaphyseal region sigmoid notch.
  • Figure 5e - is a side sectional view of the female taper located on the anatomic radial component which has the movement capability together with the invention.
  • Figure 6a - is a side sectional view of the cementless modular stem which has the movement capability together with the invention.
  • Figure 6b - is a side sectional view of the cement modular stem which has the movement capability together with the invention .
  • Figure 7a - is a top perspective view of the extension piece which has the movement capability together with the invention .
  • Figure 7b - is a side sectional view of the extension piece which has the movement capability together with the invention .
  • Figure 7c - is a top view of the extension piece which has the movement capability together with the invention.
  • Figure 8a - is a top perspective view of the round profile extension piece which has the movement capability together with the invention.
  • Figure 8b - is a side sectional view of the round profile extension piece which has the movement capability together with the invention.
  • the carpal component (1) included in Figures 3a, 3b, 3c comprises at least two screw holes (1.3) with different diameters, grooved shaft (1.1) and nail. The risk of loosening of the prosthesis due to the movement of the hand is eliminated by means of the locked screws used in the carpal component (1) .
  • the polyethylene carpal bearing (2) included in Figures 4a, 4b, 4c, 4d, 4e can be produced and used in different sizes and different thicknesses. Therefore, it can be adapted to different joint sizes.
  • the spherical protrusions (2.2) on the surface of the polyethylene carpal bearing (2) provides movement range suitable to the carpal bone anatomy and stability (durability) after implantation.
  • the cementless modular stem (4) included in Figure 6a and the cemented modular stem (5) included in Figure 6b provides cementless compression with the shaft section channel profile (4.1) and coated round profile (5.1) .
  • the modular stems are applied to the radius bone.
  • the male taper (4.2) on the base of the cementless modular stem and the male taper (5.2) on the base of the cemented stem provide the connection between the anatomic radial component (3) and the stems.
  • the extension part (6) included in Figure 7a, 7b, 7c are used in articulation or tumoral applications.
  • the female taper (6.1) on the base of the extension part provides the conical connection between the cementless and cemented modular stems (4,5) and the extension part (6) .
  • the male taper (6.2) on the upper portion of the extension piece provides the connection between the anatomic radial component (3) and the extension piece (6) .
  • rotation pin (6.3) is a rotation pin (6.3) on the upper portion of the extension piece (6) in order to prevent the rotation.
  • the round profile extension piece (7) included in the Figures 8a, 8b is used in tumor cases.
  • the female taper (7.1) on the base of the round profile extension part provides the conical connection between the cementless and cemented modular stems (4,5) and round profile extension part (7) .
  • the prosthesis can be located to the third metacarpal bone by means of being centered to the capitatum bone and fixed without cement by means of the grooved shaft (1.1) on the base of the carpal component (1) and the locked screws.
  • the polyethylene carpal b earing (2) and the carpal component (1) are locked to each other by means of the nail (2.3) located on the base of the polyethylene carpal bearing (2) and the nails (1.2) located on the side portions of the carpal component (1) .
  • the female taper (3.4) on the base of the anatomic radial component (3) provides the conical connection between the cementless modular stem (4) or cemented modular stem (5) and the anatomic radial component (3) ( Figure 1) .
  • extension piece (6) and round profile extension piece (7) can be used between the anatomic radial component (3) and the cementless modular stem (4) or cemented modular stem (5) .

Abstract

La présente invention concerne une prothèse qui est généralement utilisée dans des opérations de poignet orthopédique, qui est fixée au poignet des patients dont le poignet ne réalise pas sa tâche et réalise la tâche de l'articulation de poignet naturelle d'une manière plus efficace. L'invention concerne un produit orthopédique qui peut être utilisé pour la reconstruction des défauts se produisant du fait du radius distal et/ou de toute raison associée aux os carpiens. L'invention concerne en particulier une prothèse orthopédique dans le domaine médical qui est conçue pour éliminer les déformations articulaires douloureuses provoquées par l'arthrose, la polyarthrite rhumatoïde, l'arthrite traumatique, une tumeur, une fracture, etc.
PCT/TR2020/050397 2019-05-07 2020-05-07 Nouveauté dans des prothèses de poignet WO2020226599A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2019/06755 2019-05-07
TR2019/06755A TR201906755A2 (tr) 2019-05-07 2019-05-07 Bi̇lek protezleri̇nde yeni̇li̇k

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WO2020226599A1 true WO2020226599A1 (fr) 2020-11-12

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WO (1) WO2020226599A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110066250A1 (en) * 2009-09-17 2011-03-17 Biomet Manufacturing Corp. Distal radioulnar joint device and method of use
US20120078376A1 (en) * 2002-10-24 2012-03-29 Biomet Manufacturing Corp. Method And Apparatus For Wrist Arthroplasty
WO2012154920A1 (fr) * 2011-05-12 2012-11-15 Small Bone Innovations, Inc. Implant de poignet pour hémi-arthroplastie carpienne
WO2017165727A2 (fr) * 2016-03-24 2017-09-28 Skeletal Dynamics, Llc Prothèse totale de poignet et procédés associés

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120078376A1 (en) * 2002-10-24 2012-03-29 Biomet Manufacturing Corp. Method And Apparatus For Wrist Arthroplasty
US20110066250A1 (en) * 2009-09-17 2011-03-17 Biomet Manufacturing Corp. Distal radioulnar joint device and method of use
WO2012154920A1 (fr) * 2011-05-12 2012-11-15 Small Bone Innovations, Inc. Implant de poignet pour hémi-arthroplastie carpienne
WO2017165727A2 (fr) * 2016-03-24 2017-09-28 Skeletal Dynamics, Llc Prothèse totale de poignet et procédés associés

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