NL2019804B1 - Astragalus prosthesis - Google Patents

Astragalus prosthesis Download PDF

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Publication number
NL2019804B1
NL2019804B1 NL2019804A NL2019804A NL2019804B1 NL 2019804 B1 NL2019804 B1 NL 2019804B1 NL 2019804 A NL2019804 A NL 2019804A NL 2019804 A NL2019804 A NL 2019804A NL 2019804 B1 NL2019804 B1 NL 2019804B1
Authority
NL
Netherlands
Prior art keywords
articular surface
astragalus
prosthesis
talonavicular
subtalar
Prior art date
Application number
NL2019804A
Other languages
Dutch (nl)
Other versions
NL2019804A (en
Inventor
Tang Kanglai
Fan Shuqian
Wang Han
Xie Meiming
Lu Chenglin
Yuan Chengsong
Zhou Binghua
Tao Xu
Wang Sen
Original Assignee
The First Affiliated Hospital With The Third Military Medical Univ Of Pla
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 The First Affiliated Hospital With The Third Military Medical Univ Of Pla filed Critical The First Affiliated Hospital With The Third Military Medical Univ Of Pla
Publication of NL2019804A publication Critical patent/NL2019804A/en
Application granted granted Critical
Publication of NL2019804B1 publication Critical patent/NL2019804B1/en

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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
    • A61F2/4202—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for ankles
    • 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
    • A61F2/4202—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for ankles
    • A61F2002/4207—Talar components
    • 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
    • A61F2310/00389—The prosthesis being coated or covered with a particular material
    • A61F2310/00592—Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
    • A61F2310/00796—Coating or prosthesis-covering structure made of a phosphorus-containing compound, e.g. hydroxy(l)apatite

Landscapes

  • 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

An astragalus prosthesis is comprises a subtalar articular surface and talonaVicular articular surface; and the subtalar articular surface and/or talonaVicular articular surface 5 is a porous structure. the astragalus prosthesis provided by this invention has the biological function that it can promote the prosthesis to rapidly fusion and grow with the calcaneus and naVicular bone and has great medical value.

Description

Technical field
The invention relates to a prosthesis, in particular to an astragalus prosthesis.
Background of technology
The Collapsed astragalus osteonecrosis can’t be operated with the ankle arthroplasty is mainly because of the load-bearing damage to the astragalus and excessive bone mass loss, instead it is always be operated with the astragalus extirpation which tends to cause instability surrounding the astragalus or it is operated with the fusion surrounding the astragalus which tends to cause limit motion of the ankle articular. How to effectively reestablish the total astragalus and recover the function of ankle articular is the subject matter for orthopedist to deal with the collapsed astragalus osteonecrosis. Prosthetic replacement provides favorable technological means for reestablishing the astragalus and recovering the function of ankle articular. The existing astragalus prosthesis generally only plays a part in structure supporting and has no biological function. How to develop the personalized artificial astragalus prosthesis with biological function is the main issue for the preparation of astragalus prosthesis and clinical application.
Contents of the invention
So the invention is aimed at providing an astragalus prosthesis which is with the biological function to promote the prosthesis surface to rapidly fusion and grow with the calcaneus and navicular bone, which has great medical value.
The astragalus prosthesis of the invention comprises the subtalar articular surface and talonavicular articular surface, and the subtalar articular surface and/or talonavicular articular surface is with the porous structure.
Further the subtalar articular surface and/or talonavicular articular surface is provided with the hydroxyapatite coating.
Further the subtalar articular surface is provided with at least one fixed device to fix the astragalus and calcaneus.
Further the fixed device is the fixed leg and /or fixed orifice.
Further the number of the fixed leg is two and the number of the fixed orifice is one, and the three fixed devices are arranged in triangle shape.
Further the talonavicular articular surface is provided with talonavicular fixed orifice to fix the astragalus and navicular bone.
Compared with existing technology, the astragalus prosthesis of the invention has the beneficial effects that it is with the biological function to promote the prosthesis to rapidly fusion and grow with the calcaneus and navicular bone, and the astragalus prosthesis is with great medical value as it is easily installed and fixed and it is convenient for clinical application.
Description of the figures
See the further description for the invention combining with the figures and embodiments:
Figure 1 is the first schematic diagram on the astragalus prosthesis of the invention; Figure 2 is the second schematic diagram on the astragalus prosthesis of the invention; Figure 3 is the third schematic diagram on the astragalus prosthesis of the invention;
The corresponding name for each label is respectively as following: subtalar articular surface (1), talonavicular articular surface (2), fixed leg (3), fixed orifice (4), and talonavicular fixed orifice (5).
Specific mode of execution
Figure 1 is the first schematic diagram on the astragalus prosthesis of this invention,
Figure 2 is the second schematic diagram on the astragalus prosthesis of this invention and Figure 3 is the third schematic diagram on the astragalus prosthesis of this invention.
As shown in the figures: the astragalus prosthesis of this invention comprises the subtalar articular surface (1) and talonavicular articular surface (2); and the subtalar articular surface (1) and/or talonavicular articular surface (2) is porous structure.
In the embodiment, the subtalar articular surface (1) and/or talonavicular articular surface (2) is provided with hydroxyapatite coating, which is more beneficial to the rapid fusion and growth between the subtalar articular surface (1) and calcaneus and between the talonavicular articular surface (2) and navicular bone.
In the embodiment, the subtalar articular surface (1) is provided with at least one fixed device to fix the astragalus and calcaneus for installing and fixing the prosthesis. In the embodiment, the fixed device is the fixed leg (3) and/or fixed orifice (4), which has simple construction and is easily manufactured.
In the embodiment, the number of the fixed leg (3) is two, and the number of the fixed orifice (4) is one, and the three fixed devices are arranged in triangle shape, which can stably and reliably fix the astragalus and calcaneus.
In the embodiment, the talonavicular articular surface (2) is provided with the talonavicular fixed orifice (5) to fix astragalus and navicular bone, which is simple in design and easy to perform.
The principle of the invention is that the subtalar articular surface (T) and/or talonavicular articular surface (2) of the astragalus prosthesis is porous structure, and after the operation, the porous structure on the subtalar articular surface (1) and/or talonavicular articular surface (2) is beneficial to promote the rapid fusion and growth between the subtalar articular surface (1) and calcaneus and between the talonavicular articular surface (2) and navicular bone, so the astragalus prosthesis of the invention resolves the technological difficulty that the traditional prosthesis has low fusion rate with the bone interface, promoting the rapid fusion between the bone interface and prosthesis interface after operation, which recovers the post-operation biological function to the utmost extent and has great medical value.
And finally, the above embodiments are only used for describing the technical proposal of the invention other than restricting the invention to the specifically described embodiments. While the invention has been described in connection with the 5 preferred embodiments, those skilled in the field will understand that various modifications of the just described embodiments can be configured in form and details, without departing from the spirit and scope of the invention restricted by the attached claims.

Claims (6)

Conclusies:Conclusions: 1. Kootbeen prothese met het kenmerk dat het een subtalair articulair oppervlak (1) en een talonaviculair articulair oppervlak (2) bevat en het subtalair articulair oppervlak (1) en/of het talonaviculair articulair oppervlak (2) een poreuze structuur is.Leg bone prosthesis characterized in that it comprises a subtalar articular surface (1) and a talonavicular articular surface (2) and the subtalar articular surface (1) and / or the talonavicular articular surface (2) is a porous structure. 2. Kootbeen prothese volgens conclusie 1, met het kenmerk, dat het subtalair articulair oppervlak (1) en/of het talonaviculair articulair oppervlak (2) voorzien is van een hydroxylapatiet coating.Leg-bone prosthesis according to claim 1, characterized in that the subtalar articular surface (1) and / or the talonavicular articular surface (2) is provided with a hydroxylapatite coating. 3. Kootbeen prothese volgens conclusie 1, met het kenmerk, dat het subtalair articulair oppervlak (1) ten minste een bevestigingsmiddel heeft voor het aan elkaar bevestigen van het kootbeen en het hielbeen.The leg bone prosthesis according to claim 1, characterized in that the subtalar articular surface (1) has at least one fastening means for securing the leg bone and the heel bone together. 4. Kootbeen prothese volgens conclusie 3, met het kenmerk, dat het bevestigingsmiddel een bevestigingsbeen (3) of een bevestigingsopening (4) is.The leg bone prosthesis according to claim 3, characterized in that the fastening means is a fastening leg (3) or a fastening opening (4). 5. Kootbeen prothese volgens conclusie 4, met het kenmerk, dat het aantal bevestigingsbenen twee is en het aantal bevestigingsopeningen een, waarbij de bevestigingsmiddelen een driehoek vormen.The leg bone prosthesis according to claim 4, characterized in that the number of fixing legs is two and the number of fixing openings is one, the fixing means forming a triangle. 6. Kootbeen prothese volgens conclusie 1, met het kenmerk, dat het talonaviculair articulair oppervlak (2) voorzien is van een talonaviculaire bevestigingsopening (5) voor het aan elkaar bevestigen van het kootbeen en het scafoïd.The leg bone prosthesis according to claim 1, characterized in that the talonavicular articular surface (2) is provided with a talonavicular attachment opening (5) for attaching the leg bone and the scaphoid together.
NL2019804A 2016-11-17 2017-10-26 Astragalus prosthesis NL2019804B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611024666.6A CN106618806A (en) 2016-11-17 2016-11-17 Talus prosthesis

Publications (2)

Publication Number Publication Date
NL2019804A NL2019804A (en) 2018-05-24
NL2019804B1 true NL2019804B1 (en) 2019-12-09

Family

ID=58808213

Family Applications (1)

Application Number Title Priority Date Filing Date
NL2019804A NL2019804B1 (en) 2016-11-17 2017-10-26 Astragalus prosthesis

Country Status (2)

Country Link
CN (1) CN106618806A (en)
NL (1) NL2019804B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107569305B (en) * 2017-10-18 2024-02-13 北京大学人民医院 Assembled artificial calcaneus prosthesis
CN107693168A (en) * 2017-10-27 2018-02-16 常非 A kind of 3D printing astragalus prosthese
CN108030532A (en) * 2017-11-22 2018-05-15 华南理工大学 Astragalus dummy, bone-culting operation guide plate and its design method of personalized loose structure
CN111134910A (en) * 2020-01-13 2020-05-12 北京市春立正达医疗器械股份有限公司 Calcaneus prosthesis
CN112137767B (en) * 2020-09-18 2024-04-12 湖南华翔医疗科技有限公司 Integrated replacement navicular bone used in orthopedic operation and matched machining and installing method
CN112274299A (en) * 2020-11-20 2021-01-29 重庆熙科医疗科技有限公司 Porous metal and PEEK composite implanted joint prosthesis and preparation method thereof
CN112842625A (en) * 2021-02-23 2021-05-28 重庆熙科医疗科技有限公司 Full-range bone prosthesis with porous core and preparation method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1189221C (en) * 2003-06-11 2005-02-16 武汉理工大学 Endosteal planting body for guiding bone tissue into growth and its preparation method
CN201164513Y (en) * 2008-03-03 2008-12-17 曼德卡姆有限公司 Artificial hip joint and femur shaft
CN102048600B (en) * 2009-10-27 2013-06-12 上海交通大学医学院附属第九人民医院 Total ankle plus total talus prosthesis
US8801796B2 (en) * 2012-12-31 2014-08-12 Richard A. Rogachefsky Bone prosthesis for maintaining joint operation in complex joints
US20160058484A1 (en) * 2014-08-26 2016-03-03 Wright Medical Technology, Inc. Intramedullary support with porous metal splines

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Publication number Publication date
CN106618806A (en) 2017-05-10
NL2019804A (en) 2018-05-24

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