WO2017101519A1 - 翻修钛网 - Google Patents

翻修钛网 Download PDF

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Publication number
WO2017101519A1
WO2017101519A1 PCT/CN2016/097826 CN2016097826W WO2017101519A1 WO 2017101519 A1 WO2017101519 A1 WO 2017101519A1 CN 2016097826 W CN2016097826 W CN 2016097826W WO 2017101519 A1 WO2017101519 A1 WO 2017101519A1
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WO
WIPO (PCT)
Prior art keywords
titanium mesh
titanium
retreaded
mesh
bone
Prior art date
Application number
PCT/CN2016/097826
Other languages
English (en)
French (fr)
Inventor
史春宝
钟惠光
解凤宝
许延凯
徐祥祥
Original Assignee
北京市春立正达医疗器械股份有限公司
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Application filed by 北京市春立正达医疗器械股份有限公司 filed Critical 北京市春立正达医疗器械股份有限公司
Priority to KR1020187020331A priority Critical patent/KR102184942B1/ko
Publication of WO2017101519A1 publication Critical patent/WO2017101519A1/zh
Priority to US15/990,731 priority patent/US20180271658A1/en

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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
    • A61F2/30721—Accessories
    • A61F2/30734—Modular inserts, sleeves or augments, e.g. placed on proximal part of stem for fixation purposes or wedges for bridging a bone defect
    • 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
    • A61F2/2846—Support means for bone substitute or for bone graft implants, e.g. membranes or plates for covering bone defects
    • 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
    • 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
    • A61F2/0063—Implantable repair or support meshes, e.g. hernia meshes
    • 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
    • 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
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30907—Nets or sleeves applied to surface of prostheses or in cement
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/02—Inorganic materials
    • A61L27/04—Metals or alloys
    • A61L27/06—Titanium or titanium alloys
    • 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
    • A61F2/38—Joints for elbows or knees
    • 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
    • A61F2/0063—Implantable repair or support meshes, e.g. hernia meshes
    • A61F2002/0068—Implantable repair or support meshes, e.g. hernia meshes having a special mesh pattern
    • 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
    • A61F2002/30108—Shapes
    • A61F2002/30199—Three-dimensional shapes
    • A61F2002/30205—Three-dimensional shapes conical
    • A61F2002/30217—Three-dimensional shapes conical hollow cones, e.g. tubular-like cones
    • 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
    • A61F2/30721—Accessories
    • A61F2/30734—Modular inserts, sleeves or augments, e.g. placed on proximal part of stem for fixation purposes or wedges for bridging a bone defect
    • A61F2002/30736—Augments or augmentation pieces, e.g. wedges or blocks for bridging a bone defect
    • 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
    • A61F2/30721—Accessories
    • A61F2/30734—Modular inserts, sleeves or augments, e.g. placed on proximal part of stem for fixation purposes or wedges for bridging a bone defect
    • A61F2002/30738—Sleeves
    • 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
    • A61F2/30907—Nets or sleeves applied to surface of prostheses or in cement
    • A61F2002/30909—Nets
    • A61F2002/30914—Details of the mesh structure, e.g. disposition of the woven warp and weft wires
    • 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
    • A61F2002/3092—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth having an open-celled or open-pored structure
    • 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
    • A61F2002/3093—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth for promoting ingrowth of bone tissue
    • 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
    • A61F2/3094—Designing or manufacturing processes
    • A61F2/30942—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
    • A61F2002/3096—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques trimmed or cut to a customised size
    • 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
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00011—Metals or alloys
    • A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
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    • 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
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00359—Bone or bony tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61L2430/00—Materials or treatment for tissue regeneration
    • A61L2430/02—Materials or treatment for tissue regeneration for reconstruction of bones; weight-bearing implants

Definitions

  • the present invention relates to a medical prosthesis, and more particularly to a refurbished titanium mesh that can compensate for bone defects in knee replacement surgery.
  • the metal block is mainly a solid structure produced by titanium alloy or a 3D printed bone trabecular structure, and a screw hole is added to the middle portion to be fixed on the knee joint prosthesis.
  • this structure is rather cumbersome and is not conducive to the growth of the bone, which is unfavorable for the recovery of the patient. Due to the fixed size of the metal block, the needs of patients with severe bone defects cannot be met.
  • the problems of the repaired titanium mesh are as follows: the retreading of the titanium mesh is a mesh structure, which is not as stable as the solid structure, and is prone to breakage.
  • the stress of the mesh structure is relatively concentrated, and the strength of the support column is relatively high. The net is more difficult in the production and processing process and is not easy to mass produce.
  • a retreaded titanium mesh for compensating for bone defects in knee replacement surgery characterized in that the retreaded titanium mesh comprises a transverse ridge belt for implanting the retreaded titanium mesh into the human body and a longitudinal ridge belt supporting the lateral ridge band, transverse The ridge belt and the longitudinal ridge belt are arranged in an intersection to form a mesh-shaped reticle titanium mesh.
  • a plurality of transverse ridges and longitudinal ridges are disposed in the retreaded titanium mesh.
  • the allograft bone and/or knee joint prosthesis outside the titanium mesh can be fixed together with the refurbishing titanium mesh by entering the hollow portion.
  • the retreaded titanium mesh is surrounded by a ring shape, and the cross section of the retreaded titanium mesh is a wedge-shaped upper and lower narrow.
  • the titanium mesh is reworked using a titanium alloy material.
  • the side wall of the lateral ridge belt has an angle of 65°-75° with the bottom wall, and the inserted titanium mesh can be stably implanted into the bone by inserting the angle into the bone.
  • Renovating the mesh structure of the titanium mesh can ensure the patient's bones grow in, and can also be cut to provide a good match for the patient to meet the needs of the patient;
  • Figure 1 is a schematic view showing the structure of a refurbished titanium mesh of the present invention.
  • FIG. 1 it is a modified titanium mesh of the present invention for compensating for bone defects in knee replacement surgery, including a plurality of transverse ridges 2 and a plurality of longitudinal ridges 3, through the lateral ridges 2 Inserted into the bone to implant the repaired titanium mesh 1 into the human body, the transverse ridge strip 2 and the longitudinal ridge strip 3 are arranged in a crosswise manner to form a mesh-shaped reticled titanium mesh 1, and the longitudinal ridge strip 3 is used to support the transverse ridge strip 2 to thereby support the entire Renovating the structure of the titanium mesh 1,
  • transverse ridge belt 2 and the longitudinal ridge belt 3 have a hollow portion 4, and the allograft bone and/or knee joint prosthesis outside the titanium mesh 1 can be fixed together with the refurbishment titanium mesh by entering the hollow portion, and the platform support can be used.
  • the femoral condyle is used in combination to fix the titanium mesh to the human body.
  • the retreaded titanium mesh 1 is surrounded by a ring shape, and the cross-section of the retreaded titanium mesh 1 has a wedge shape with an upper width and a lower width, and a relatively stable internal structure can be obtained.
  • the shape of the retreaded titanium mesh 1 is designed to mimic the shape of the human bone. It can be cut by reshaping the titanium mesh 1 to design a variety of sizes to provide a good match for the patient to adapt to the surgery of different patients. demand. Renovating the mesh structure of the titanium mesh 1 also reduces the use of intervening materials, reduces weight, uses fewer instruments, and saves on operating time.
  • the retreaded titanium mesh 1 of the present invention is made of a titanium alloy material, and the side wall of the lateral ridge strip 2 has an angle of 65°-75° with the bottom wall, that is, the side wall of the lateral ridge strip 2 has an angle of 15° with the axial direction.
  • the angle of 25° is inserted into the bone through the angle, and the repaired titanium mesh can be stably implanted into the bone.
  • the invention renovates the titanium mesh, and the mesh structure of the titanium mesh can ensure the growth of the patient's bones, and can also be cut to provide a good matching degree for the patient to meet the needs of the patient;
  • the guarantee of the patient's bone growth is beneficial to the patient's later recovery; fewer instruments are used, which saves the operation time; reduces the use of the interventional material, reduces the weight, and is beneficial to the repair of the bone defect, rather than simply Replacement with a prosthesis; it can cope with various special cases and facilitate the smooth operation of the operation.

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

Abstract

一种翻修钛网(1)，用于弥补膝关节置换手术中的骨缺损，翻修钛网(1)包括用于将翻修钛网(1)植入人体的横向脊带(2)和支撑横向脊带(2)的纵向脊带(3)，横向脊带(2)与纵向脊带(3)交叉设置组合形成网状的翻修钛网(1)。

Description

翻修钛网
相关申请的交叉参考
本申请要求于2015年12月17日提交中国专利局、申请号为201510952813.5、名称为“一种翻修钛网”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及一种医用假体，尤其涉及一种可弥补膝关节置换手术中的骨缺损的翻修钛网。
背景技术
翻修钛网是膝关节置换手术中的植入性假体，主要作用是为了弥补病人的骨缺损。国内外现有技术在弥补骨缺损的手术中主要使用翻修垫块，翻修垫块主要由形状各异的实体结构组成，以适应不同的骨缺损病人。翻修垫块主要应用于翻修手术和骨缺损严重的初次手术置换中。随着我国临床手术中翻修病例的增多，翻修的垫块的应用逐渐增多，也暴漏了翻修垫块的一些缺点。
现阶段我国市场上在膝关节手术置换中主要用于弥补骨缺损的是翻修金属垫块。金属垫块主要是由钛合金生产加工成的实体结构或者是3D打印的骨小梁结构，其中间部位会增加螺钉孔用于固定在膝关节假体上。但是这种结构比较笨重不利于骨骼的长入，对于病人的恢复不利。由于金属垫块规格固定，不能满足骨缺损严重的病人的需求。
而现阶段使用的翻修钛网存在的问题有：翻修钛网为网状结构，不如实体结构稳定，容易出现断裂的情况，网状结构应力比较集中，对支撑柱的强度要求较高，另外钛网在生产加工过程中难度比较大，不易批量生产。
发明内容
本发明的目的在于提供一种可弥补膝关节置换手术中的骨缺损的翻修 钛网。
为实现上述目的，本发明的一种翻修钛网的具体技术方案为：
一种翻修钛网，用于弥补膝关节置换手术中的骨缺损，其特征在于，翻修钛网包括用于将翻修钛网植入人体的横向脊带和支撑横向脊带的纵向脊带，横向脊带与纵向脊带交叉设置组合形成网状的翻修钛网。
进一步，翻修钛网中设置有多条横向脊带和纵向脊带。
进一步，横向脊带与纵向脊带之间具有镂空部，翻修钛网外部的异体骨和/或膝关节假体可通过进入镂空部内与翻修钛网固定在一起。
进一步，翻修钛网环绕围成环形，且翻修钛网的横截面呈上宽下窄的楔形。
进一步，翻修钛网采用钛合金材料。
进一步，横向脊带的侧壁与底壁具有65°-75°的夹角，通过夹角插入骨头中，可将翻修钛网稳定植入骨头中。
本发明的一种翻修钛网的优点在于：
1)翻修钛网的网状结构可保证病人的骨骼长入，也可对其进行剪切，为病人提供一个良好的匹配度，以满足病人的需求；
2)可更好的保证病人骨骼的长入，对于病人后期恢复比较有利；
3)配合使用的器械较少，节省了手术时间；
4)减少了介入材料的使用，减轻了重量，有利于骨缺损部位的修复，而不是单纯的以假体代替；
5)可应对各种特殊情况的病例，有利于手术的顺利进行。
附图概述
通过阅读下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本发明的限制。而且在整个附图中，用相同的参考符号表示相同的部件。在附图中：
图1为本发明的翻修钛网的结构示意图。
本发明的较佳实施方式
为了更好的了解本发明的目的、结构及功能，下面结合附图，对本发明的一种翻修钛网做进一步详细的描述。
如图1所示，其示为本发明的一种翻修钛网，用于弥补膝关节置换手术中的骨缺损，包括多条横向脊带2和多条纵向脊带3，通过横向脊带2插入骨头内以将翻修钛网1植入人体中，横向脊带2与纵向脊带3交叉设置组合形成网状的翻修钛网1，纵向脊带3用于支撑横向脊带2进而实现支撑整个翻修钛网1的结构，
进一步，横向脊带2与纵向脊带3之间具有镂空部4，翻修钛网1外部的异体骨和/或膝关节假体可通过进入镂空部内与翻修钛网固定在一起，可以和平台托、股骨髁配合使用，以将翻修钛网固定在人体上。
进一步，翻修钛网1环绕围成环形，且翻修钛网1的横截面呈上宽下窄的楔形，可获得较稳定的内在结构。此外，翻修钛网1的外形是模仿人体骨骼形状设计而成，可通过对翻修钛网1进行剪切，设计出了多种尺寸，为病人提供一个良好的匹配度，以适应不同病人的手术需求。翻修钛网1的网状结构还减少了介入材料的使用，减轻了重量，使用的器械较少，节省了手术时间。
进一步，本发明的翻修钛网1采用钛合金材料，横向脊带2的侧壁与底壁具有65°-75°的夹角，即横向脊带2的侧壁与轴向方向具有15°-25°的夹角，通过夹角插入骨头中，可将翻修钛网稳定植入骨头中。
本发明的一种翻修钛网，翻修钛网的网状结构可保证病人的骨骼长入，也可对其进行剪切，为病人提供一个良好的匹配度，以满足病人的需求；可更好的保证病人骨骼的长入，对于病人后期恢复比较有利；配合使用的器械较少，节省了手术时间；减少了介入材料的使用，减轻了重量，有利于骨缺损部位的修复，而不是单纯的以假体代替；可应对各种特殊情况的病例，有利于手术的顺利进行。
以上借助具体实施例对本发明做了进一步描述，但是应该理解的是，这里具体的描述，不应理解为对本发明的实质和范围的限定，本领域内的普通技术人员在阅读本说明书后对上述实施例做出的各种修改，都属于本发明所 保护的范围。

Claims (6)

  1. 一种翻修钛网，用于弥补膝关节置换手术中的骨缺损，其特征在于，翻修钛网包括用于将翻修钛网植入人体的横向脊带和支撑横向脊带的纵向脊带，横向脊带与纵向脊带交叉设置组合形成网状的翻修钛网。
  2. 根据权利要求1所述的翻修钛网，其特征在于，翻修钛网中设置有多条横向脊带和纵向脊带。
  3. 根据权利要求1所述的翻修钛网，其特征在于，横向脊带与纵向脊带之间具有镂空部，翻修钛网外部的异体骨和/或膝关节假体可通过进入镂空部内与翻修钛网固定在一起。
  4. 根据权利要求1所述的翻修钛网，其特征在于，翻修钛网环绕围成环形，且翻修钛网的横截面呈上宽下窄的楔形。
  5. 根据权利要求1所述的翻修钛网，其特征在于，翻修钛网采用钛合金材料。
  6. 根据权利要求1所述的翻修钛网，其特征在于，横向脊带的侧壁与底壁具有65°-75°的夹角，通过夹角插入骨头中，可将翻修钛网稳定植入骨头中。
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