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WO2018139801A1 - Tige d'articulation artificielle et articulation artificielle comprenant celle-ci - Google Patents

Tige d'articulation artificielle et articulation artificielle comprenant celle-ci Download PDF

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Publication number
WO2018139801A1
WO2018139801A1 PCT/KR2018/000770 KR2018000770W WO2018139801A1 WO 2018139801 A1 WO2018139801 A1 WO 2018139801A1 KR 2018000770 W KR2018000770 W KR 2018000770W WO 2018139801 A1 WO2018139801 A1 WO 2018139801A1
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WO
WIPO (PCT)
Prior art keywords
stem
core member
wire members
artificial
members
Prior art date
Application number
PCT/KR2018/000770
Other languages
English (en)
Korean (ko)
Inventor
전인호
홍한표
Original Assignee
울산대학교 산학협력단
재단법인 아산사회복지재단
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 울산대학교 산학협력단, 재단법인 아산사회복지재단 filed Critical 울산대학교 산학협력단
Publication of WO2018139801A1 publication Critical patent/WO2018139801A1/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
    • 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
    • A61F2/32—Joints for the hip
    • 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
    • A61F2/32—Joints for the hip
    • A61F2/34—Acetabular cups
    • 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
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • 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
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3662—Femoral shafts
    • 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
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
    • A61F2002/30649—Ball-and-socket 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
    • A61F2/32—Joints for the hip
    • A61F2002/3241—Joints for the hip having a ring, e.g. for locking the femoral head into the acetabular cup

Definitions

  • the present invention relates to an artificial joint stem and an artificial joint comprising the same.
  • the hip joint is a joint that connects the femur of the human body and the tibia of the pelvis, and is a joint that plays an important role in sitting or standing.
  • the hip joint may be damaged by pathological causes such as tuberculosis and trauma.
  • an artificial hip joint may be inserted through surgery.
  • the hip joint is a surgical implant that replaces an injured hip joint with an artificial joint. It consists of an acetabular cup and a stem.
  • the acetabular cup and stem are made of a material that is harmless to the human body.
  • the acetabular cup is located in the acetabular pelvis, and the stem is inserted into the femur and fixed.
  • a spherical head formed of a ceramic or metal material is fixed to the end of the stem, and the head is accommodated in the acetabular cup to rotate.
  • the present invention provides an artificial joint stem and an artificial joint including the same that can enhance the bonding force with the bone.
  • one end is fixed to the first bone of the human body, the other end of the artificial joint stem (stem) having a coupling portion formed on the other end, the stem extends from the coupling portion to one end of the stem core member And a plurality of wire members spaced apart from each other at predetermined intervals about the core member so as to surround the core member.
  • the stem for an artificial joint according to the present invention may be provided with elasticity through a plurality of wire members disposed to surround the core member with respect to the core member, and may include a connection member connecting the core member to improve durability.
  • the stem for artificial articulation according to the present invention can be a stable structure by arranging the connecting members with the spacing between the connecting members and the ratio of the cross-sectional area of the stem as Fibonacci ratio.
  • 1 is a view schematically showing a conventional artificial joint.
  • FIG. 2 is a conceptual diagram schematically showing an artificial joint according to an embodiment of the present invention.
  • FIG. 3 is a schematic illustration of another embodiment of the stem of FIG. 2.
  • FIG. 3 is a schematic illustration of another embodiment of the stem of FIG. 2.
  • FIG. 4 is a view schematically showing an artificial joint according to another embodiment of the present invention.
  • FIG. 5 is a front view schematically showing an artificial joint according to another embodiment of the present invention.
  • one end is fixed to the first bone of the human body, the other end of the artificial joint stem (stem) having a coupling portion formed on the other end, the stem extends from the coupling portion to one end of the stem core member And a plurality of wire members spaced apart from each other at predetermined intervals about the core member so as to surround the core member.
  • the plurality of wire members may be arranged such that one end thereof is connected to the coupling portion and is spaced apart from each other at predetermined intervals about the core member to extend to one end of the stem. .
  • each of the plurality of wire members may be spaced apart from the core member.
  • the core member may have a smaller cross-sectional area from the coupling portion toward one end of the stem.
  • the stem may further include a connection member for connecting the plurality of wire members.
  • the connecting member may have a ring shape surrounding the plurality of wire members.
  • the stem is provided with a plurality of connecting members, the plurality of connecting members may be spaced apart along the longitudinal direction of the core member.
  • the spacing between the plurality of connecting members may be narrower closer to the coupling portion.
  • the plurality of connecting members may be arranged such that the ratio between the spacing between the plurality of connecting members and the cross-sectional area of the stem is Fibonacci ratio.
  • the connecting member may have a spiral structure surrounding the plurality of wire members with a predetermined vertical gap along a longitudinal direction of the core member.
  • the upper and lower intervals of the connecting member may be narrower closer to the coupling portion.
  • the plurality of wire members are arranged to surround the core member, to form a shell member having a mesh structure, there is a separation space between the shell member and the core member Can be.
  • the outer shell member may be made of a mesh structure that is closer to the coupling portion becomes denser.
  • the artificial joint stem a head including an insertion portion into which the coupling portion is inserted, and a receiving portion is formed so that the head is inserted and rotated, and corresponds to the first bone.
  • An artificial joint is provided, comprising an acetabular cup secured to a second bone.
  • one end is fixed to the first bone of the human body
  • the first fixing member is disposed on the other end of the first stem, one end to the second bone of the human body different from the first bone
  • a second fixing member disposed at the other end of the second stem and the second stem being fixed, and connected to the first fixing member by a connecting means, wherein the first stem is connected to the first stem from the other end of the first stem.
  • An artificial joint comprising a first core member extending to one end of one stem and a plurality of first wire members spaced apart from each other at predetermined intervals about the first core member so as to surround the first core member To provide.
  • the second stem includes a second core member extending from the other end of the second stem to one end of the second stem, and the second core member so as to surround the second core member. It may include a plurality of second wire members which are spaced apart from each other at the intervals of the microbial center.
  • the first stem may be detachably coupled to the first fixing member, and the second stem may be detachably coupled to the second fixing member.
  • a part such as a film, a region, a component, or the like is on or on another part, not only is it directly above the other part, but also another film, a region, a component, etc. is interposed therebetween. It also includes cases where there is.
  • a film, a region, a component, or the like when a film, a region, a component, or the like is connected, not only the film, the region, and the components are directly connected, but also other films, regions, and components are interposed between the film, the region, and the components. And indirectly connected.
  • the film, the region, the component, and the like when the film, the region, the component, and the like are electrically connected, not only the film, the region, the component, and the like are directly electrically connected, but other films, the region, the component, and the like are interposed therebetween. This includes indirect electrical connections.
  • a conventional artificial joint includes a stem 1, a head 2 and an acetabular cup 3.
  • the stem 1 includes a tip portion 13 inserted into the femur, a seating portion 12 extending from the tip portion 13, and a coupling portion 11 which can be coupled to a head which extends from the seating portion 12 and described later. can do.
  • the distal end portion 13 and the seating portion 12 are inserted into the femur and fixed to the femur by the bone marrow secreted from the femur.
  • the front end portion 13 may have a circular cross-section in the longitudinal direction and have a long rod shape, and may have a smaller diameter than the seating portion 12.
  • the seating part 12 may be formed in an elliptical shape with respect to the longitudinal direction, and may be formed such that the area of the cross section is increased toward the coupling part 11.
  • Coupling portion 11 may form a predetermined angle with the seating portion, it may be made of an obtuse angle corresponding to the body characteristics of the user.
  • the seating portion 12 and the tip portion 13 extending from the coupling portion 11 are integrally formed, and are formed of the same material.
  • the seating portion 12 and the tip portion 13 are integrally formed by including titanium (Ti), which is a high-strength material. This can happen.
  • FIG. 2 is a conceptual diagram schematically showing an artificial joint 10 according to an embodiment of the present invention
  • FIG. 3 schematically illustrates another embodiment of the stem 100 of FIG. 2.
  • the artificial joint 10 may include a stem 100, a head 200, and an acetabular cup 300.
  • the stem 100 is inserted into and fixed to the first bone of the human body, and a coupling part 110 may be formed at the other end.
  • the first bone may be the femur.
  • the stem 100 may include a core member 120 and a plurality of wire members 130 disposed from the coupling part 110 to the seating part and the tip part.
  • the core member 120 may extend from the coupling part 110 to one end of the stem 100. One end of the core member 120 may be connected to one side of the coupling unit 110.
  • the core member 120 is disposed along the center of the stem 100 and may have a smaller cross-sectional area from the coupling part 110 toward one end of the stem 100.
  • the cross-sectional area of the core member 120 adjacent to the coupling part 110 may be smaller than the cross-sectional area of one side of the coupling part 110. In other words, the maximum cross-sectional area of the core member 120 may be smaller than the cross-sectional area of one side of the coupling unit 110.
  • the core member 120 may be made of a material such as titanium (Ti) or stainless steel.
  • the wire members 130 may be spaced apart from each other at predetermined intervals around the core member 120 to surround the core member 120.
  • Each of the wire members 130 may be connected to the coupling unit 110. Specifically, one end of the core member 120 may be connected to the center of the coupling portion 110, and each of the plurality of wire members 130 may be connected along the outer portion of the coupling portion 110.
  • Each of the wire members 130 may be spaced apart from the core member 120.
  • the plurality of wire members 130 may be an envelope member disposed to surround the core member 120. In this case, a space may exist between the outer cover member and the core member 120 including the plurality of wire members 130.
  • the stem 100 may be given elasticity through such a space.
  • the stem 100 may further include a connection member 140 connecting the plurality of wire members 130.
  • connection member 140 may have a ring shape surrounding the plurality of wire members 130.
  • the stem 100 may include a plurality of ring-shaped connecting members 140.
  • the plurality of connection members 140 may be disposed to be spaced apart along the longitudinal direction of the core member 120 to fix the plurality of wire members 130.
  • the connection member 140 may connect the interior of the plurality of wire members 130. In this case, the connection member 140 may be disposed to be connected between the plurality of wire members 130 and the core member 120 to firmly fix the plurality of wire members 130.
  • the plurality of connection members 140 may be spaced apart from each other at predetermined intervals along the length direction of the core member 120. The distance between the plurality of connection members 140 may be gradually narrowed toward the coupling portion 110 from the portion inserted into the first bone. In other words, the plurality of connection members 140 may be arranged closer to the coupling unit 110. For example, the plurality of connection members 140 may be arranged such that the ratio of the interval between the plurality of connection members 140 and the cross-sectional area of the stem 100 becomes the Fibonacci ratio.
  • the cross-sectional area of the stem 100 may be a cross-sectional area of the cylinder consisting of a plurality of wire members 130.
  • connection members 140 may be spaced apart at such a Fibonacci ratio, thereby improving elasticity and durability of the stem 100 including the plurality of wire members 130 and the core member 120.
  • the connection members 140 disposed on the portion corresponding to the conventional distal end may have a wide interval therebetween to impart elasticity to the stem 100, and the connection members 140 disposed on the portion corresponding to the seating portion may be The gap between them is tight, which can improve durability.
  • the wire members 130 and the connection member 140 may include the same material as the core member 120. That is, the plurality of wire members 130 and the connection member 140 may be made of a material such as titanium alloy or stainless steel.
  • the second connection member 145 has a spiral structure surrounding the plurality of wire members 130 with a predetermined vertical gap along a length direction of the core member 120. Can be. Unlike the connection member 140 according to an embodiment, the second connection member 145 according to another exemplary embodiment may be connected to connect the plurality of wire members 130 arranged along the length direction of the core member 120. have. In FIG. 3, although the second connection member 145 connects the plurality of wire members 130 from the outside, the present invention is not limited thereto. In another embodiment, the second connection member 145 is disposed between the plurality of wire members 130 and the core member 120 to form wire members along an inner circumferential surface of the cylinder including the plurality of wire members 130. 130 and the core member 120 may be connected.
  • the vertical gap of the second connecting member 145 made of a spiral may be narrower closer to the coupling portion (110).
  • the vertical gap of the second connecting member 145 at the portion corresponding to the tip of the conventional stem 1 is wide, and the second connecting member (at the portion corresponding to the seating portion of the conventional stem 1)
  • the vertical gap of 145 may be narrow.
  • the vertical gap of the second connection member 145 may be closer to the coupling part 110.
  • the second connecting member 145 may be disposed such that the ratio of the vertical gap and the cross-sectional area of the stem 100 becomes the Fibonacci ratio.
  • the cross-sectional area of the stem 100 may be a cross-sectional area of a cylinder composed of a plurality of wire members 130.
  • the acetabular cup 300 has a receiving portion 310 (see Fig. 2) is formed so that the head 200 is inserted and can be rotated, it may be fixed to the second bone corresponding to the first bone.
  • the second bone may be the pubic bone of the user connected to the femur, which is the first bone.
  • the receiving part 310 may be formed in the shape of a hemispherical cup to accommodate the head 200 having a ball shape.
  • Acetabular cup 300 may be coupled to the pubis through a protruding outer surface.
  • the outer surface of the acetabular cup 300 may be made of a metal having biocompatibility, for example, titanium alloy.
  • the accommodating part 310 of the acetabular cup 300 may be made of a material different from that of the outer surface, for example, made of a ceramic material.
  • the outer surface may be formed to be porous to promote bone fusion with the pubic bone.
  • the acetabular cup 300 may be coupled to the pubis using a coupling means such as a screw.
  • the head 200 may be mounted to the stem 100 including an insertion portion into which the coupling portion 110 of the stem 100 may be inserted.
  • FIGS. 2 and 3 schematically illustrate the plurality of wire members 130 and the connection member 140 or the second connection member 145, and may be more closely disposed to form a mesh structure.
  • An outer shell member including a plurality of wire members 130 and a connecting member 140 may be disposed to surround the core member 120 having a mesh structure. Such a mesh structure may become denser toward the coupling part 110.
  • FIG. 4 is a view schematically showing an artificial joint 20 according to another embodiment of the present invention.
  • the artificial joint 20 may include a stem 100, a head 200, and an acetabular cup 300.
  • Artificial joint 20 according to another embodiment is the same as the embodiment, except for the structure of the stem 100, overlapping description will be omitted.
  • the stem 100 may include a core member 120 and a plurality of second wire members 135.
  • the core member 120 may extend from the coupling part 110 to one end of the stem 100. One end of the core member 120 may be connected to one side of the coupling unit 110.
  • the core member 120 is disposed along the center of the stem 100 and may have a smaller cross-sectional area from the coupling part 110 toward one end of the stem 100.
  • the cross-sectional area of the core member 120 adjacent to the coupling part 110 may be smaller than the cross-sectional area of one side of the coupling part 110. In other words, the maximum cross-sectional area of the core member 120 may be smaller than the cross-sectional area of one side of the coupling unit 110.
  • the core member 120 may be made of a material such as titanium (Ti) or stainless steel.
  • the plurality of second wire members 135 may be disposed around the core member 120, and each of the second wire members 135 may be disposed to surround the core member 120 in a spiral shape.
  • three second wire members 135 are illustrated in a spiral shape surrounding the core member 120, but the present disclosure is not limited thereto, and may include more second wire members 135.
  • the second wire members 135 may be spaced apart at regular intervals, and one end of the second wire members 135 may be connected to the coupling part 110.
  • the core member 120 may be disposed to be connected to the center of one side of the coupling unit 110, and the plurality of second wire members 135 may be disposed at an outer side of the coupling unit 110.
  • the plurality of second wire members 135 may be spaced apart from each other at predetermined intervals.
  • the stem 100 may be spaced apart from one side of the coupling part 110 at intervals of 120 degrees.
  • Upper and lower intervals of the plurality of second wire members 135 may be narrower as they are adjacent to the coupling part 110.
  • the artificial joint has been described as an artificial joint disposed between the femur and the pubis, the present invention is not limited thereto and may be applied to artificial joints at other positions.
  • FIG. 5 is a front view schematically showing the artificial joint 1000 according to another embodiment of the present invention.
  • the artificial joint 1000 may be a knee artificial joint.
  • the artificial joint 1000 may include the femoral fixation member 1100, the femur stem 1110, the tibia fixation member 1200, and the tibia stem 1210.
  • the artificial joint 1000 may connect the femur fixing member 1100 and the tibia fixing member 1200 through a connecting means such as a fastening bolt.
  • the femur stem 1110 and the tibia stem 1210 may have a thickness and length suitable for the user, and may be detachably coupled to the femur fixing member 1100 and the tibia fixing member 1200 by using a screw type. have.
  • each of the femoral stem 1110 and the tibia stem 1210 may be detachably coupled to the femur fixing member 1100 and the tibia fixing member 1200 using various methods.
  • the femoral stem 1110 and the tibia stem 1210 may include a core member (not shown) and a plurality of wire members 1113 and 1213 surrounding the core member (not shown) as described above.
  • elasticity can be imparted by including a core member (not shown) and a plurality of wire members 1113 and 1213 in the stem of the knee artificial joint.
  • the femur stem 1110 and the tibia stem 1210 may further include a connecting member.
  • the stem for artificial articulation according to the present invention may be provided with elasticity through a plurality of wire members arranged to surround the core member with respect to the core member, and include a connecting member connecting the same to improve durability. You can.
  • the stem for artificial articulation according to the present invention can be a stable structure by arranging the connecting members with the spacing between the connecting members and the ratio of the cross-sectional area of the stem as the Fibonacci ratio.
  • an artificial joint is provided.
  • embodiments of the present invention can be applied to artificial joint surgery used in the industry.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

Selon un mode de réalisation, la présente invention concerne une tige d'articulation artificielle, dont une extrémité est fixée à un premier os du corps humain et qui comporte une partie de raccordement formée à l'autre extrémité de celle-ci, comprenant : un élément de noyau s'étendant de la partie de raccordement à une extrémité de la tige ; et une pluralité d'éléments de fil métallique agencés de façon à être espacés les uns des autres à des intervalles prédéterminés autour de l'élément de noyau de façon à entourer l'élément de noyau.
PCT/KR2018/000770 2017-01-24 2018-01-17 Tige d'articulation artificielle et articulation artificielle comprenant celle-ci WO2018139801A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2017-0011141 2017-01-24
KR1020170011141A KR20180086994A (ko) 2017-01-24 2017-01-24 인공 관절용 스템 및 이를 포함하는 인공 관절

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WO2018139801A1 true WO2018139801A1 (fr) 2018-08-02

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KR (1) KR20180086994A (fr)
WO (1) WO2018139801A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
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US5246461A (en) * 1990-11-27 1993-09-21 Laboratorium fur experimentelle Chirurgie, Forschungsinstitut, Davos Femoral twin-set for a hip endoprosthesis
US5397359A (en) * 1991-08-07 1995-03-14 Oscobal Ag Metal wire structure for endoprosthetics
KR100904088B1 (ko) * 2009-01-09 2009-06-23 주식회사 코렌텍 인공 고관절용 대퇴스템
CN101708135A (zh) * 2009-06-01 2010-05-19 北京爱康宜诚医疗器材有限公司 人工髋关节骨融合股骨柄
KR101281446B1 (ko) * 2006-07-19 2013-07-02 전북대학교산학협력단 탄성계수를 고려한 원위조립형 대퇴스템

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5246461A (en) * 1990-11-27 1993-09-21 Laboratorium fur experimentelle Chirurgie, Forschungsinstitut, Davos Femoral twin-set for a hip endoprosthesis
US5397359A (en) * 1991-08-07 1995-03-14 Oscobal Ag Metal wire structure for endoprosthetics
KR101281446B1 (ko) * 2006-07-19 2013-07-02 전북대학교산학협력단 탄성계수를 고려한 원위조립형 대퇴스템
KR100904088B1 (ko) * 2009-01-09 2009-06-23 주식회사 코렌텍 인공 고관절용 대퇴스템
CN101708135A (zh) * 2009-06-01 2010-05-19 北京爱康宜诚医疗器材有限公司 人工髋关节骨融合股骨柄

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