CN110464512A - A kind of hip prosthesis - Google Patents

A kind of hip prosthesis Download PDF

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Publication number
CN110464512A
CN110464512A CN201910857216.2A CN201910857216A CN110464512A CN 110464512 A CN110464512 A CN 110464512A CN 201910857216 A CN201910857216 A CN 201910857216A CN 110464512 A CN110464512 A CN 110464512A
Authority
CN
China
Prior art keywords
hip prosthesis
femoral stem
acetabular cup
implanted
prosthesis according
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201910857216.2A
Other languages
Chinese (zh)
Inventor
朱献文
陆国赞
林荔军
朱纬纬
郜帅
黄安琪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou China Titanium Three-Dimensional Material Manufacturing Co Ltd
Original Assignee
Guangzhou China Titanium Three-Dimensional Material Manufacturing Co Ltd
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 Guangzhou China Titanium Three-Dimensional Material Manufacturing Co Ltd filed Critical Guangzhou China Titanium Three-Dimensional Material Manufacturing Co Ltd
Priority to CN201910857216.2A priority Critical patent/CN110464512A/en
Publication of CN110464512A publication Critical patent/CN110464512A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2/36Femoral heads ; Femoral endoprostheses
    • A61F2/3609Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2/36Femoral heads ; Femoral endoprostheses
    • A61F2/3662Femoral shafts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2002/3208Bipolar or multipolar joints, e.g. having a femoral head articulating within an intermediate acetabular shell whilst said shell articulates within the natural acetabular socket or within an artificial outer shell
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2/34Acetabular cups
    • A61F2002/3401Acetabular cups with radial apertures, e.g. radial bores for receiving fixation screws

Abstract

The invention belongs to artifical bone's technical field more particularly to a kind of hip prosthesis.The present invention provides a kind of hip prosthesis, it include: femoral stem, bulb, liner, acetabular cup and attachment screw, the femoral stem is inserted into shin bone marrow in position to be implanted, the acetabular cup is connect by the attachment screw with the acetabular fossa at position to be implanted, and the femoral stem is connect by the bulb and liner with the acetabular cup;The inside curvature of the femoral stem is 127 °~135 °.In technical solution provided by the invention, by the cooperation of each component of hip prosthesis, the hip prosthesis and primary bone stable connection of implantation may make;Meanwhile the inside curvature of femoral stem is set as 127 °~135 °, can more be bonded with shin bone marrow in position to be implanted, convenient for being not susceptible to loosen after fixation and fixation;It solves in the prior art, the hip prosthesis of implantation is there is being easy to happen loosening with primary bony site, the technological deficiency for needing to regularly replace.

Description

A kind of hip prosthesis
Technical field
The invention belongs to artifical bone's technical field more particularly to a kind of hip prosthesis.
Background technique
In recent years, artificial joint replacement is one of the most important progress that field of orthopaedics obtains, with China's medical instrument The continuous renewal of technology, especially in field of orthopaedics, artificial hip joint replacing operation, it has also become medical field treatment hip joint is disabled A kind of effective ways that disease generallys use, and the fixed effect between the acetabular bone and femoral stem and natural bone being implanted into after performing the operation is Determine the key of joint prosthesis service life and curative effect.
In the prior art, femoral stem and femur are difficult to fixed or fixed unstable, and pine is easy to happen between femoral stem and sclerotin It is dynamic, cause the turnover rate of femoral stem high, medical expense improves, and frequently replaces artificial bone parts, can also bring to patient larger Physiology pain.
Therefore, develop a kind of hip prosthesis, for solving in the prior art, the hip prosthesis of implantation there is with Primary bony site is easy to happen loosening, and it is urgently to be resolved to become those skilled in the art for the technological deficiency for needing to regularly replace Problem.
Summary of the invention
In view of this, for solving in the prior art, the hip joint of implantation is false the present invention provides a kind of hip prosthesis Body is there is being easy to happen loosening with primary bony site, the technological deficiency for needing to regularly replace.
The present invention provides a kind of hip prosthesis, the hip prosthesis includes: femoral stem, bulb, liner, acetabular cup And attachment screw, the femoral stem are inserted into shin bone marrow in position to be implanted, the acetabular cup by the attachment screw with The acetabular fossa at position to be implanted connects, and the femoral stem is connect by the bulb and liner with the acetabular cup;
The inside curvature of the femoral stem is 127 °~135 °.
Preferably, the femoral stem is equipped with several fan-shaped translots close to one end of the bulb.
Preferably, the width of the fan-shaped translot is 1-20mm.
Preferably, the spacing of the adjacent fan-shaped translot is 1-20mm, and the quantity of the sector translot is 1~15.
Preferably, one end that the femoral stem is inserted into shin bone marrow in position to be implanted is equipped with several vertical slots.
Preferably, the width of the vertical slot is 1-20mm.
Preferably, the spacing of the adjacent vertical slot is 1-20mm, and the quantity of the vertical slot is 1-15.
Preferably, the femoral stem is inserted into narrow wide pyramidal structure under one end of shin bone marrow in position to be implanted is.
Preferably, the surface of the acetabular cup is equipped with vacuum titanium layer, the vacuum titanium layer with a thickness of 400 ± 200 μm, institute The porosity for stating vacuum titanium layer is greater than 50%.
Preferably, the junction of the acetabular cup and the liner is zigzag closing component structure.
In conclusion the present invention provides a kind of hip prosthesis, comprising: femoral stem, bulb, liner, acetabular cup and Attachment screw, the femoral stem are inserted into shin bone marrow in position to be implanted, the acetabular cup by the attachment screw with wait plant Enter the acetabular fossa connection at position, the femoral stem is connect by the bulb and liner with the acetabular cup;The femoral stem Inside curvature is 127 °~135 °.In technical solution provided by the invention, by the cooperation of each component of hip prosthesis, it may make The hip prosthesis of implantation and primary bone stable connection;Meanwhile the inside curvature of femoral stem is set as 127 °~135 °, can with to Implant site shin bone marrow is more bonded, convenient for being not susceptible to loosen after fixation and fixation.A kind of hip joint provided by the invention Prosthese solves in the prior art, and the hip prosthesis of implantation needs periodically there is loosening is easy to happen with primary bony site The technological deficiency of replacement.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of perspective view of the explosion of hip prosthesis in the embodiment of the present invention;
Fig. 2 is in a kind of hip prosthesis provided in an embodiment of the present invention, and femoral stem is equipped with several fan-shaped translot positions Partial enlargement diagram;
Fig. 3 is in a kind of hip prosthesis provided in an embodiment of the present invention, and femoral stem is equipped with the part at several vertical slot positions Enlarged diagram;
Fig. 4 is in a kind of hip prosthesis provided in an embodiment of the present invention, and femoral stem is inserted into shin bone marrow in position to be implanted Partial enlargement diagram;
Fig. 5 is in a kind of hip prosthesis provided in an embodiment of the present invention, and the section of the junction of acetabular cup and liner shows It is intended to;
Wherein, femoral stem 1, bulb 2, liner 3, acetabular cup 4 and attachment screw 5.
Specific embodiment
The embodiment of the invention provides a kind of hip prosthesis, for solving in the prior art, the hip prosthesis of implantation There is being easy to happen loosening with primary bony site, the technological deficiency for needing to regularly replace.
To enable the purpose of the present invention, feature and advantage more obvious and understandable, below in conjunction with the present invention Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that disclosed below Embodiment be only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field Those of ordinary skill's all other embodiment obtained without making creative work, belongs to protection of the present invention Range.
Fig. 1 to Fig. 5 is please referred to, the present invention provides a kind of hip prosthesis, comprising: femoral stem 1, bulb 2, liner 3, hip Mortar cup 4 and attachment screw 5, femoral stem 1 are inserted into shin bone marrow in position to be implanted, acetabular cup 4 by attachment screw 5 with wait plant Enter the acetabular fossa connection at position, femoral stem 1 is connect by bulb 2 and liner 3 with acetabular cup 4;The inside curvature of femoral stem 1 is 127 °~135 °.The embodiment of the invention provides a kind of hip prosthesis, and for solving in the prior art, the hip joint of implantation is false Body is there is being easy to happen loosening with primary bony site, the technological deficiency for needing to regularly replace.
In technical solution provided by the invention, one end of femoral stem 1 is inserted into the shin bone marrow at position to be implanted, femoral stem 1 other end and bulb 2 is cooperatively connected, and bulb 2 is inserted into liner 3, is further inserted into acetabular cup 4 by liner 3, connects spiral shell Acetabular cup 4 is connect by nail 5 with the acetabular fossa at position to be implanted, and the hip prosthesis of implantation is carried out with position to be implanted Closely it is connected and fixed.Meanwhile the matching pair of femoral stem 1 Yu Human Physiology radian is effectively improved, the inside curvature of femoral stem 1 is 127 °~135 °.
Herein referring to Fig. 2, in a kind of hip prosthesis provided in an embodiment of the present invention, femoral stem 1 close to bulb 2 one End is equipped with several fan-shaped translots.Compared with smooth outer surface, after being equipped with fan-shaped translot, it is possible to increase femoral stem 1 and implantation environment Frictional force, prevent implantation after femoral stem 1 sink displacement, effectively ensure that loose shift does not occur for the hip prosthesis of implantation.
To allow the frictional force of fan-shaped translot sufficiently large to prevent femoral stem 1 from sinking, meanwhile, take into account the hip with implantation Articular prosthesis can cooperate the movement of joint entirety, and in technical solution provided in an embodiment of the present invention, the width of fan-shaped translot is 1-20mm。
Similarly, in a kind of hip prosthesis provided in an embodiment of the present invention, the spacing of adjacent sector translot is in femoral stem 1 1-20mm, the quantity of fan-shaped translot are 1-15.
Herein referring to Fig. 3, similarly, after femoral stem 1 is inserted into shin bone marrow in position to be implanted, to prevent femoral stem 1 from revolving It is shifted caused by then, in technical solution provided in an embodiment of the present invention, femoral stem 1 is inserted into the one of shin bone marrow in position to be implanted End is equipped with several vertical slots.Compared with smooth outer surface, after being equipped with vertical slot, it is possible to increase the friction between femoral stem 1 and shin bone marrow Power prevents femoral stem 1 from rotating.
To provide sufficiently large frictional force to femoral stem 1 to prevent femoral stem 1 from rotating, meanwhile, take into account the femur with implantation Handle 1 can cooperate the movement of joint entirety, and in technical solution provided in an embodiment of the present invention, the width of vertical slot is 1-20mm.
Similarly, in a kind of hip prosthesis provided in an embodiment of the present invention, the spacing of adjacent vertical slot is 1-20mm, vertical slot Quantity is 1-15.
Herein further referring to Fig. 4, to allow femoral stem 1 is more convenient to be inserted into wait plant convenient for surgical procedure Enter position, in technical solution provided in an embodiment of the present invention, femoral stem 1 be inserted into shin bone marrow in position to be implanted one end be under it is narrow Upper wide pyramidal structure.
For the benefit of area of new bone can be grown into the hip prosthesis of implantation, allow the hip prosthesis of implantation better With spontaneous bone fusion, meanwhile, take into account and be not absorbed by the body degradation with 4 surface of acetabular cup of the hip prosthesis of implantation, lose hip The respective action of mortar cup 4, in a kind of hip prosthesis provided in an embodiment of the present invention, the surface of acetabular cup 4 is equipped with vacuum titanium layer, Vacuum titanium layer with a thickness of 400 ± 200 μm, the porosity of vacuum titanium layer is greater than 50%.
Herein referring to Fig. 5, being the stable connection so that acetabular cup 4, prevent implantation hip prosthesis internal structure it Between loosen, in technical solution provided in an embodiment of the present invention, the junction of acetabular cup 4 and liner 3 is the sealed knot of zigzag Structure.
In conclusion the present invention provides a kind of hip prosthesis, comprising: femoral stem, bulb, liner, acetabular cup and Attachment screw, the femoral stem are inserted into shin bone marrow in position to be implanted, the acetabular cup by the attachment screw with wait plant Enter the acetabular fossa connection at position, the femoral stem is connect by the bulb and liner with the acetabular cup;The femoral stem Inside curvature is 127 °~135 °.In technical solution provided by the invention, by the cooperation of each component of hip prosthesis, it may make The hip prosthesis of implantation and primary bone stable connection;Meanwhile the inside curvature of femoral stem is set as 127 °~135 °, can with to Implant site shin bone marrow is more bonded, convenient for being not susceptible to loosen after fixation and fixation.A kind of hip joint provided by the invention Prosthese solves in the prior art, and the hip prosthesis of implantation needs periodically there is loosening is easy to happen with primary bony site The technological deficiency of replacement.
A kind of hip prosthesis provided by the present invention is described in detail above, for the general technology of this field Personnel, thought according to an embodiment of the present invention, there will be changes in the specific implementation manner and application range, to sum up institute It states, the contents of this specification are not to be construed as limiting the invention.

Claims (10)

1. a kind of hip prosthesis, which is characterized in that the hip prosthesis include: femoral stem, bulb, liner, acetabular cup with And attachment screw, the femoral stem are inserted into shin bone marrow in position to be implanted, the acetabular cup by the attachment screw with to The acetabular fossa of implant site connects, and the femoral stem is connect by the bulb and liner with the acetabular cup;
The inside curvature of the femoral stem is 127 °~135 °.
2. hip prosthesis according to claim 1, which is characterized in that the femoral stem is set close to one end of the bulb There are several fan-shaped translots.
3. hip prosthesis according to claim 2, which is characterized in that the width of the sector translot is 1-20mm.
4. hip prosthesis according to claim 2 or 3, which is characterized in that the spacing of the adjacent fan-shaped translot is 1- The quantity of 20mm, the sector translot are 1-15.
5. hip prosthesis according to claim 1, which is characterized in that the femoral stem is inserted into position tibial bone to be implanted One end of marrow is equipped with several vertical slots.
6. hip prosthesis according to claim 5, which is characterized in that the width of the vertical slot is 1-20mm.
7. hip prosthesis according to claim 5 or 6, which is characterized in that the spacing of the adjacent vertical slot is 1-20mm, The quantity of the vertical slot is 1-15.
8. hip prosthesis according to claim 1, which is characterized in that the femoral stem is inserted into position tibial bone to be implanted One end of marrow narrow wide pyramidal structure under being.
9. hip prosthesis according to claim 1, which is characterized in that the surface of the acetabular cup is equipped with vacuum titanium layer, The vacuum titanium layer with a thickness of 400 ± 200 μm, the porosity of the vacuum titanium layer is greater than 50%.
10. hip prosthesis according to claim 1, which is characterized in that the junction of the acetabular cup and the liner For zigzag closing component structure.
CN201910857216.2A 2019-09-11 2019-09-11 A kind of hip prosthesis Pending CN110464512A (en)

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CN201910857216.2A CN110464512A (en) 2019-09-11 2019-09-11 A kind of hip prosthesis

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111839820A (en) * 2020-09-03 2020-10-30 赵晓辉 Combined hip joint prosthesis for implantation
CN113456306A (en) * 2021-06-21 2021-10-01 北京力达康科技有限公司 Hip joint prosthesis

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204446187U (en) * 2014-12-31 2015-07-08 天津正天医疗器械有限公司 hip prosthesis
CN109464225A (en) * 2017-09-08 2019-03-15 苏州玄陶商务咨询有限公司 A kind of silicon nitride ceramics artificial hip joint
CN208741211U (en) * 2018-01-17 2019-04-16 上海科太迈迪医疗器械有限公司 Cup serves as a contrast integrated acetabular component
CN211067219U (en) * 2019-09-11 2020-07-24 广州华钛三维材料制造有限公司 Hip joint prosthesis

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204446187U (en) * 2014-12-31 2015-07-08 天津正天医疗器械有限公司 hip prosthesis
CN109464225A (en) * 2017-09-08 2019-03-15 苏州玄陶商务咨询有限公司 A kind of silicon nitride ceramics artificial hip joint
CN208741211U (en) * 2018-01-17 2019-04-16 上海科太迈迪医疗器械有限公司 Cup serves as a contrast integrated acetabular component
CN211067219U (en) * 2019-09-11 2020-07-24 广州华钛三维材料制造有限公司 Hip joint prosthesis

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111839820A (en) * 2020-09-03 2020-10-30 赵晓辉 Combined hip joint prosthesis for implantation
CN113456306A (en) * 2021-06-21 2021-10-01 北京力达康科技有限公司 Hip joint prosthesis
CN113456306B (en) * 2021-06-21 2023-10-13 北京力达康科技有限公司 Hip joint prosthesis

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