JP2012115356A - Femoral component for artificial hip joint - Google Patents

Femoral component for artificial hip joint Download PDF

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JP2012115356A
JP2012115356A JP2010265989A JP2010265989A JP2012115356A JP 2012115356 A JP2012115356 A JP 2012115356A JP 2010265989 A JP2010265989 A JP 2010265989A JP 2010265989 A JP2010265989 A JP 2010265989A JP 2012115356 A JP2012115356 A JP 2012115356A
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femoral component
artificial hip
buffer member
hip joint
bone head
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JP2012115356A5 (en
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Ichiro Funmoto
一郎 墳本
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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
    • A61F2/32—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
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof

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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

PROBLEM TO BE SOLVED: To provide a femoral component for an artificial hip joint, which reduces a force to be transmitted between a stem portion and a bone head portion.SOLUTION: The femoral component X for an artificial hip joint includes: a bone head portion 10 with a spherical body having a fit-in hole formed thereon; a stem portion 20 with an engagement neck 22 to be fitted in and fixed to the fit-in hole and having a size and shape enough to be fitted into the fit-in hole, the neck being formed on the front end and the stem portion being embedded in the femur; and a buffer member 30 to be held by at least a part between the inner surface of the fit-in hole and the outer surface of the engagement neck which oppose to each other, and made of an adhesively elastic body or an elastic body which is more likely to be deformed than the bone head portion and the stem portion.

Description

本発明は、人工股関節において大腿骨側に取り付けられる構成部分に関する。   The present invention relates to a component attached to the femur side in an artificial hip joint.

人工股関節は、骨盤側に設けられる人工骨頭の受けとなるカップ状の臼蓋コンポーネントと、大腿骨側に設けられる人工の骨頭を有する大腿骨コンポーネントとから構成される。また、場合によっては、臼蓋軟骨をそのまま用い、大腿骨コンポーネントのみを置換する場合もある。
図８に大腿骨コンポーネントＡが大腿骨Ｆに固定された状態を示す縦断面図を示す。大腿骨コンポーネントは、骨頭としての機能を果たす球状体からなる骨頭部Ｈと、大腿骨Ｆに埋め込まれ、骨頭部の土台となるステム部Ｓとから構成される。
ステム部Ｓの先端側には円錐台状の突起Ｓａが設けられるとともに、骨頭部Ｈには、突起Ｓａに嵌る形状を有する孔Ｈａが設けられ、ステム部Ｓと骨頭部Ｈとは突起Ｓａに穴Ｈａが嵌合することで固定されている。 The hip prosthesis is composed of a cup-shaped acetabular component that receives an artificial bone head provided on the pelvis side, and a femoral component having an artificial bone head provided on the femur side. In some cases, the acetabular cartilage is used as it is, and only the femoral component is replaced.
FIG. 8 is a longitudinal sectional view showing a state in which the femoral component A is fixed to the femur F. The femoral component includes a bone head H made of a spherical body that functions as a bone head, and a stem portion S that is embedded in the femur F and serves as the foundation of the bone head.
A truncated cone-shaped projection Sa is provided on the distal end side of the stem portion S, and a hole Ha having a shape that fits the projection Sa is provided in the bone head H. The stem portion S and the bone head H are formed on the projection Sa. The hole Ha is fixed by fitting.

ステム部Ｓと骨頭部Ｈとはともに硬質の素材により形成され、これらが嵌合により直接接触して固定されているために、骨頭部Ｈにかかる力は、ほぼすべてステム部Ｓに伝わる。このような大腿骨Ｆに埋め込まれるステム部Ｓにかかる力は、ステム部Ｓと大腿骨Ｆとの接着面において、接着の緩みや、マイクロモーションを誘発し、ステム部Ｓの磨耗や折損の一因となったり、大腿部痛や大腿骨骨折の一因となったりしていると考えられる。
逆に、ステム部Ｓにかかる力も骨頭部Ｈに減衰することなく伝達するため、これも人工股関節置換術後の患者に対する臼蓋コンポーネントの緩みの一因となったり、人工骨頭置換術後の患者に対する臼蓋軟骨の変形や変形間接症の一因となったりしていると考えられる。
本発明は、このような観点に立ち、人工股関節の大腿骨コンポーネントにおいて、ステム部と骨頭部との間に伝わる力を緩和することを課題とする。 The stem portion S and the bone head H are both formed of a hard material, and since these are directly contacted and fixed by fitting, almost all the force applied to the bone head H is transmitted to the stem portion S. Such a force applied to the stem portion S embedded in the femur F induces loosening of the adhesion and micromotion on the adhesion surface between the stem portion S and the femur F, and the stem portion S is worn or broken. It is thought that it is a cause, and it is contributed to a thigh pain and a femur fracture.
On the contrary, since the force applied to the stem S is transmitted to the bone head H without being attenuated, this also contributes to the loosening of the acetabular component relative to the patient after the hip replacement or the patient after the hip replacement. It is thought that it contributes to deformation of acetabular cartilage and deformity indirect disease.
In view of such a viewpoint, an object of the present invention is to alleviate a force transmitted between a stem portion and a bone head in a femoral component of an artificial hip joint.

上記課題を解決するために、本発明は次のような構成を有する。
請求項１に記載の発明は、嵌入孔が設けられた球状体からなる骨頭部と、先端に前記嵌入孔に嵌め入れて固定する当該嵌入孔に嵌る大きさ及び形状を有する係合ネックが形成された、大腿骨に埋め込まれるステム部と、相対する前記嵌入孔内面と前記係合ネック外面との間の少なくとも一部に狭持される薄い、粘弾性体又は前記骨頭部及びステム部より弾性変形しやすい弾性体からなる緩衝部材とを有する人工股関節用大腿骨コンポーネントである。
請求項２に記載の発明は、前記人工股関節用大腿骨コンポーネントにおいて、前記緩衝部材は少なくとも前記係合ネックの側周面を一周するように設けられるものである。
請求項３に記載の発明は、前記人工股関節用大腿骨コンポーネントにおいて、前記緩衝部材は少なくとも前記嵌入孔の底面に設けられるものである。
請求項４に記載の発明は、前記人工股関節用大腿骨コンポーネントにおいて、前記緩衝部材には抗生物質が添加されるものである。
請求項５に記載の発明は、前記人工股関節用大腿骨コンポーネントと、前記骨頭部を回動可能に保持するカップを有する臼蓋コンポーネントとからなる人工股関節である。 In order to solve the above problems, the present invention has the following configuration.
According to the first aspect of the present invention, there is formed a bone head made of a spherical body provided with an insertion hole, and an engagement neck having a size and a shape that fits into the insertion hole that is fitted into the insertion hole and fixed to the distal end. A thin, viscoelastic body sandwiched between at least part of the stem portion embedded in the femur and the opposed inner surface of the insertion hole and the outer surface of the engagement neck, or more elastic than the bone head and stem portion This is a femoral component for an artificial hip joint having a cushioning member made of an elastic body that is easily deformed.
According to a second aspect of the present invention, in the femoral component for an artificial hip joint, the buffer member is provided so as to go around the side peripheral surface of the engagement neck at least.
According to a third aspect of the present invention, in the femoral component for an artificial hip joint, the buffer member is provided at least on the bottom surface of the insertion hole.
According to a fourth aspect of the present invention, in the femoral component for an artificial hip joint, an antibiotic is added to the cushioning member.
The invention according to claim 5 is an artificial hip joint comprising the femoral component for an artificial hip joint and a acetabular component having a cup for rotatably holding the bone head.

請求項１に記載の発明は、ステム部の係合ネックと、骨頭部の嵌入孔との相対する面の少なくとも一部に粘弾性体からなる緩衝部材が狭持されるので、この接触面においては、ステム部と骨頭部間の間に伝わる力は、粘弾性体又は弾性体からなる緩衝部材が弾性変形やクリープ変形をすることにより緩和される。これにより、ステム部と大腿骨との接着の緩みやマイクロモーションが抑制され、ステム部の磨耗・折損、大腿部痛、大腿骨骨折、大腿骨の変形、臼蓋コンポーネントの緩み、臼蓋軟骨の変形等を抑制することができる。
請求項２に記載の発明は、緩衝部材を係合ネックの周面を一周するように設けることで、係合ネックの側方から加わる全方位の力を緩和することができる。
請求項３に記載の発明は、緩衝部材を嵌入孔の底面に設けることで、係合ネックの中心軸方向に加わる力を緩和することができる。
請求項４に記載の発明は、緩衝部材に抗生物質を添加することで、人工股関節置換術又は人工骨頭置換術をセメントレスにて施術する場合でも、周囲の組織や組織液及び血液中への抗生物質の長時間に渡る徐放が行なわれ、術後の感染症の発生を抑制することができる。
請求項５に記載の発明は、人工股関節において、上記のような効果を奏することができる。 According to the first aspect of the present invention, since the buffer member made of a viscoelastic body is sandwiched between at least a part of the opposing surfaces of the engagement neck of the stem portion and the insertion hole of the bone head, The force transmitted between the stem portion and the bone head is alleviated by the elastic deformation or the creep deformation of the buffer member made of the viscoelastic body or the elastic body. As a result, loosening and micromotion of the adhesion between the stem part and the femur are suppressed, wear and tear of the stem part, thigh pain, femoral fracture, femoral deformation, acetabular component loosening, acetabular cartilage Can be suppressed.
According to the second aspect of the present invention, by providing the buffer member so as to go around the peripheral surface of the engagement neck, the force in all directions applied from the side of the engagement neck can be reduced.
The invention according to claim 3 can relieve the force applied in the central axis direction of the engagement neck by providing the buffer member on the bottom surface of the insertion hole.
In the invention according to claim 4, even when an artificial hip joint replacement or artificial head replacement is performed without cement by adding an antibiotic to the buffer member, antibiotics into surrounding tissues, tissue fluids and blood are used. Sustained release of the substance over a long period of time is performed, and postoperative infection can be suppressed.
The invention according to claim 5 can achieve the above-described effects in an artificial hip joint.

実施形態に係る人工股関節用大腿骨コンポーネントの縦断面図である。It is a longitudinal cross-sectional view of the femoral component for artificial hip joints according to the embodiment. 実施形態に係る人工股関節用大腿骨コンポーネントの先端部分の拡大縦断面図である。It is an expanded longitudinal cross-sectional view of the front-end | tip part of the femoral component for artificial hip joints which concerns on embodiment. 実施形態に係る人工股関節用大腿骨コンポーネントの先端部分の拡大分解縦断面図である。It is an expansion disassembled longitudinal cross-sectional view of the front-end | tip part of the femoral component for artificial hip joints which concerns on embodiment. 緩衝部材の第１の変形例を示す人工股関節用大腿骨コンポーネントの先端部分の拡大縦断面図である。It is an expanded longitudinal cross-sectional view of the front-end | tip part of the femoral component for artificial hip joints which shows the 1st modification of a buffer member. 緩衝部材の第２の変形例を示す人工股関節用大腿骨コンポーネントの先端部分の拡大縦断面図である。It is an expanded longitudinal cross-sectional view of the front-end | tip part of the femoral component for artificial hip joints which shows the 2nd modification of a buffer member. 緩衝部材の第３の変形例を示す人工股関節用大腿骨コンポーネントの先端部分の拡大縦断面図である。It is an expanded longitudinal cross-sectional view of the front-end | tip part of the femoral component for artificial hip joints which shows the 3rd modification of a buffer member. 緩衝部材の第４の変形例を示す人工股関節用大腿骨コンポーネントの先端部分の拡大縦断面図である。It is an expanded longitudinal cross-sectional view of the front-end | tip part of the femoral component for artificial hip joints which shows the 4th modification of a buffer member. 従来の人工股関節用大腿骨コンポーネントの装着状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the mounting state of the conventional femoral component for artificial hip joints.

以下、本発明の実施の形態について、図面を参照しながら説明する。
図１に本実施形態に係る人工股関節用大腿骨コンポーネントＸ（以下、大腿骨コンポーネントＸと称する）の縦断面図を示す。大腿骨コンポーネントＸは、骨頭部１０、ステム部２０、緩衝部材３０とから構成される。図２に大腿骨コンポーネントＸの先端部分の拡大縦断面図を示し、図３に大腿骨コンポーネントＸの先端部分の拡大分解縦断面図を示す。
骨頭部１０は球体状の金属やセラミック等から構成され、下面側に内部に向かって縮径する円錐台の外面に合致する内壁が形成された嵌入孔１１が設けられている。なお、大腿骨コンポーネントＸは、骨頭部１０を回動可能に保持するカップを有する従来の臼蓋コンポーネントと組み合わせることで人工股関節を構成することができる。
ステム部２０は金属からなり、棒状体からなる大腿骨に埋め込まれて固定されるステム本体２１と、ステム本体２１の先端に大腿骨の骨頭が存する角度に合致する方向に突出するように設けられる係合ネック２２とから構成される。係合ネック２２は骨頭部１０の嵌入孔１１の内周面に相似でやや小さい外面を有する円錐台状に形成される。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a longitudinal sectional view of a femoral component X for artificial hip joint according to the present embodiment (hereinafter referred to as a femoral component X). The femoral component X includes a bone head 10, a stem portion 20, and a buffer member 30. FIG. 2 shows an enlarged longitudinal sectional view of the distal end portion of the femoral component X, and FIG. 3 shows an enlarged exploded longitudinal sectional view of the distal end portion of the femoral component X.
The bone head 10 is made of a spherical metal, ceramic, or the like, and is provided with an insertion hole 11 formed with an inner wall that matches the outer surface of the truncated cone having a diameter reduced toward the inside on the lower surface side. The femoral component X can constitute an artificial hip joint by combining with a conventional acetabular component having a cup that rotatably holds the bone head 10.
The stem portion 20 is made of metal, and is provided so as to protrude in a direction that matches the angle at which the femoral head of the femur exists at the tip of the stem body 21 and the stem body 21 that is embedded and fixed in the femur made of a rod-shaped body. The engagement neck 22 is comprised. The engagement neck 22 is similar to the inner peripheral surface of the insertion hole 11 of the bone head 10 and is formed in a truncated cone shape having a slightly smaller outer surface.

緩衝部材３０は粘弾性体からなる上方に向かって縮径する上面が閉じられた円筒状の部材である。緩衝部材３０は粘弾性体の他に、骨頭部１０及びステム部２０よりも弾性変形しやすい弾性体から形成してもよい。緩衝部材３０に用いられる具体的な素材としては、ポリメチルメタクリレート、ポリエチレン、エラストマー、ポリウレタン、ウレタンゲルなどが例示される。緩衝部材３０の内面はステム部２０の係合ネック２２の外面とほぼ合致する形状を有し、緩衝部材３０の外面の先端側は骨頭部１０の嵌入孔１１の内周面とほぼ合致する形状を有する。これにより、緩衝部材３０は係合ネック２２の外面に嵌合固定され、骨頭部１０の嵌入孔１１は緩衝部材３０の外面に嵌合固定されることとなる。即ち、緩衝部材３０は、嵌入孔１１と係合ネック２２との間に狭持される。また、緩衝部材３０は、成形硬化前に抗生物質が添加されている。緩衝部材３０は、硬化した状態のものを係合ネック２２及び嵌入孔１１に嵌めてもよく、また、ゲル状物、粘土状物、液状物から硬化する素材を用いる場合は、硬化前のゲル状又は粘土状のものを係合ネック２２の外面や嵌入孔１１の内面に塗るか、硬化前の液状のものを嵌入孔１１に入れ、その後、両者を嵌め合わせて硬化させることで形状を成形すると同時に係合ネック２２と嵌入孔１１との間に狭持固定されるようにしてもよい。   The buffer member 30 is a cylindrical member made of a viscoelastic body and closed at the upper surface whose diameter is reduced toward the upper side. The buffer member 30 may be formed of an elastic body that is more easily elastically deformed than the bone head 10 and the stem portion 20 in addition to the viscoelastic body. Specific materials used for the buffer member 30 include polymethyl methacrylate, polyethylene, elastomer, polyurethane, urethane gel, and the like. The inner surface of the buffer member 30 has a shape that substantially matches the outer surface of the engagement neck 22 of the stem portion 20, and the distal end side of the outer surface of the buffer member 30 has a shape that substantially matches the inner peripheral surface of the insertion hole 11 of the bone head 10. Have Accordingly, the buffer member 30 is fitted and fixed to the outer surface of the engagement neck 22, and the insertion hole 11 of the bone head 10 is fitted and fixed to the outer surface of the buffer member 30. That is, the buffer member 30 is sandwiched between the insertion hole 11 and the engagement neck 22. Moreover, the buffer member 30 is added with an antibiotic before molding and hardening. The buffer member 30 may be fitted in the hardened state in the engagement neck 22 and the insertion hole 11, and when a material that hardens from a gel, clay, or liquid material is used, the gel before curing is used. A shape is formed by coating the outer surface of the engagement neck 22 or the inner surface of the insertion hole 11 or putting a liquid material before curing into the insertion hole 11 and then fitting and curing both. At the same time, it may be nipped and fixed between the engagement neck 22 and the insertion hole 11.

次に、以上のような構成を有する大腿骨コンポーネントＸの作用効果について説明する。大腿骨コンポーネントＸの使用方法は、従来の大腿骨コンポーネントの人工股関節置換術や人工骨頭置換術等における使用方法と同じであり、大腿骨から骨頭部分を切除して髄腔を整えてステム本体２１を大腿骨に挿入して固定する。なお、緩衝部材３０と骨頭部１０は、大腿骨に挿入固定する前に係合ネック２２に固定しておいてもよく、ステム部２０を大腿骨に固定した後に、係合ネック２２に固定してもよい。
このようにして、大腿骨に固定された大腿骨コンポーネントＸは、骨頭部１０からステム部２０へ伝わる力及びステム部２０から大腿骨部２０へ伝わる力が、緩衝部材３０の弾性変形やクリープ変形により緩和されるので、ステム部Ｓの磨耗や折損、大腿部痛、大腿骨骨折、臼蓋コンポーネントの緩み、臼蓋軟骨の変形などの発生を抑制することができる。 Next, the effect of the femoral component X having the above configuration will be described. The method of using the femoral component X is the same as the conventional method of using a femoral component for hip replacement, artificial head replacement, and the like. Is inserted into the femur and fixed. The buffer member 30 and the bone head 10 may be fixed to the engagement neck 22 before being inserted and fixed to the femur, and the stem portion 20 is fixed to the engagement neck 22 after being fixed to the femur. May be.
In this manner, the femoral component X fixed to the femur has the elastic force and the creep deformation of the buffer member 30 due to the force transmitted from the bone head 10 to the stem 20 and the force transmitted from the stem 20 to the femur 20. Therefore, it is possible to suppress the occurrence of wear and tear of the stem portion S, thigh pain, femoral fracture, loosening of the acetabular component, deformation of the acetabular cartilage, and the like.

なお、上記実施形態では緩衝部材３０は、係合ネック２２の上面および側周面全体に渡って設けられているが、緩衝部材３０の形状は種々の変形が可能である。例えば、図４に示す大腿骨コンポーネントＸａのように係合ネック２２の側周面のみに緩衝部材３０を設けるような構成としてもよく、図５に示す大腿骨コンポーネントＸｂのように係合ネック２２の上面のみに緩衝部材３０を設けるような構成としてもよい。また、側周面を構成する緩衝部材３０の長さも適宜変更することができ、図６、図７に示す大腿骨コンポーネントＸｃ、Ｘｄのように、骨頭部１０の嵌入孔１１内に収まるような長さとしてもよい。   In the above embodiment, the buffer member 30 is provided over the entire top surface and side peripheral surface of the engagement neck 22, but the shape of the buffer member 30 can be variously modified. For example, the buffer member 30 may be provided only on the side peripheral surface of the engagement neck 22 as in the femoral component Xa shown in FIG. 4, and the engagement neck 22 as in the femoral component Xb shown in FIG. It is good also as a structure which provides the buffer member 30 only in the upper surface. In addition, the length of the buffer member 30 constituting the side peripheral surface can be changed as appropriate, and can be accommodated in the insertion hole 11 of the bone head 10 like the femoral components Xc and Xd shown in FIGS. It may be a length.

Ｘ、Ｘａ、Ｘｂ、Ｘｃ、Ｘｄ 人工股関節用大腿骨コンポーネント
１０ 骨頭部
１１ 嵌入孔
２０ ステム部
２１ ステム本体
２２ 係合ネック
３０ 衝撃吸収材 X, Xa, Xb, Xc, Xd Hip component for artificial hip joint 10 Bone head 11 Insert hole 20 Stem portion 21 Stem body 22 Engaging neck 30 Shock absorber

Claims (5)

嵌入孔が設けられた球状体からなる骨頭部と、
先端に前記嵌入孔に嵌め入れて固定する当該嵌入孔に嵌る大きさ及び形状を有する係合ネックが形成された、大腿骨に埋め込まれるステム部と、
相対する前記嵌入孔内面と前記係合ネック外面との間の少なくとも一部に狭持される薄い、粘弾性体又は前記骨頭部及びステム部より弾性変形しやすい弾性体からなる緩衝部材と
を有する人工股関節用大腿骨コンポーネント。 A bone head made of a spherical body provided with a fitting hole;
A stem portion embedded in the femur, in which an engagement neck having a size and a shape that fits into the insertion hole that is fitted into and fixed to the insertion hole at a distal end is formed;
And a buffer member made of a thin, viscoelastic body or an elastic body that is more easily elastically deformed than the bone head and stem, and is sandwiched between at least a part between the inner surface of the fitting hole and the outer surface of the engagement neck. Femoral component for artificial hip joints. 前記緩衝部材は少なくとも前記係合ネックの側周面を一周するように設けられるものである請求項１に記載の人工股関節用大腿骨コンポーネント。   The femoral component for a hip prosthesis according to claim 1, wherein the buffer member is provided so as to go around at least a side peripheral surface of the engagement neck. 前記緩衝部材は少なくとも前記嵌入孔の底面に設けられるものである請求項１又は２のいずれか１項に記載の人工股関節用大腿骨コンポーネント。   The femoral component for an artificial hip joint according to claim 1, wherein the buffer member is provided at least on a bottom surface of the insertion hole. 前記緩衝部材には抗生物質が添加されるものである請求項１から３のいずれか１項に記載の人工股関節用大腿骨コンポーネネント。   The femoral component for an artificial hip joint according to any one of claims 1 to 3, wherein an antibiotic is added to the buffer member. 請求項１から４のいずれか１項に記載の人工股関節用大腿骨コンポーネントと、前記骨頭部を回動可能に保持するカップを有する臼蓋コンポーネントとからなる人工股関節。   An artificial hip joint comprising the femoral component for an artificial hip joint according to any one of claims 1 to 4 and a acetabular component having a cup that rotatably holds the bone head.
JP2010265989A 2010-11-30 2010-11-30 Femoral component for artificial hip joint Pending JP2012115356A (en)

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JP2014176687A (en) * 2013-03-14 2014-09-25 Depuy Synthes Products Llc Femoral component for implantable hip prosthesis
JP2017000291A (en) * 2015-06-05 2017-01-05 京セラメディカル株式会社 Artificial hip joint having electrical insulation sleeve
JP2018519885A (en) * 2015-06-07 2018-07-26 ジョイント イノベイション テクノロジー，エルエルシー Morse taper protective sleeve
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JPS53146499A (en) * 1977-05-23 1978-12-20 Sulzer Ag Coupling of transplanted materials different in characteristics
JPH02213342A (en) * 1989-02-14 1990-08-24 Ngk Spark Plug Co Ltd Artificial hip joint
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US10213310B2 (en) 2012-06-18 2019-02-26 DePuy Synthes Products, Inc. Dual modulus hip stem and method of making the same
JP2014176687A (en) * 2013-03-14 2014-09-25 Depuy Synthes Products Llc Femoral component for implantable hip prosthesis
JP2018198958A (en) * 2013-03-14 2018-12-20 デピュイ・シンセス・プロダクツ・インコーポレイテッド Femoral component for implantable hip prosthesis
US10213314B2 (en) 2013-03-14 2019-02-26 DePuy Synthes Products, Inc. Femoral component for an implantable hip prosthesis
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JP2017000291A (en) * 2015-06-05 2017-01-05 京セラメディカル株式会社 Artificial hip joint having electrical insulation sleeve
JP2018519885A (en) * 2015-06-07 2018-07-26 ジョイント イノベイション テクノロジー，エルエルシー Morse taper protective sleeve

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