JPH04279520A - Pharmaceutical preparation for embedding in bone - Google Patents

Pharmaceutical preparation for embedding in bone

Info

Publication number
JPH04279520A
JPH04279520A JP3153805A JP15380591A JPH04279520A JP H04279520 A JPH04279520 A JP H04279520A JP 3153805 A JP3153805 A JP 3153805A JP 15380591 A JP15380591 A JP 15380591A JP H04279520 A JPH04279520 A JP H04279520A
Authority
JP
Japan
Prior art keywords
bone
implantation
preparation
drug
polymeric substance
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
JP3153805A
Other languages
Japanese (ja)
Inventor
Wataru Kawaji
河路 渡
Yoshiaki Ishii
石井 良章
Ichiro Yamakawa
山川 一郎
Sumio Watanabe
渡辺 純男
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.)
Eisai Co Ltd
Original Assignee
Eisai 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 Eisai Co Ltd filed Critical Eisai Co Ltd
Priority to JP3153805A priority Critical patent/JPH04279520A/en
Publication of JPH04279520A publication Critical patent/JPH04279520A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To provide the title pharmaceutical preparation capable of supplementing bone tissue repair while sustainedly releasing a medicine. CONSTITUTION:The objective pharmaceutical preparation can be obtained by mixing (A) an artificial bone component with (B) a molded product formed by either compressing a mixture of a medicine with polymeric material or solidification after melting said mixture. Said medicine is e.g. one of various kinds of antibiotics and antineoplastic agents; while said artificial bone component is e.g. hydroxyapatite. Said polymeric material is pref. a biodegradable substance. The release of the medicine from the present pharmaceutical preparation can easily be controlled. Furthermore, after once embedded in the bone, the present pharmaceutical preparation need not be taken out.

Description

【発明の詳細な説明】[Detailed description of the invention]

【0001】0001

【産業上の利用分野】本発明は徐放化された薬物を含む
人工骨成分含有の骨内部埋め込み用製剤に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a preparation for implantation into bone containing an artificial bone component containing a sustained-release drug.

【0002】0002

【従来の技術】難治性疾患である慢性骨髄炎や開放骨折
の術後感染の治療として、アミノグリコシド系抗生物質
を徐放化させた高分子ビーズ(ゲンタマイシン含有ポリ
メチルメタクリレート)を骨内部に外科的に埋め込む治
療が欧米では実用化されている。
[Prior Art] Polymer beads (polymethyl methacrylate containing gentamicin) containing sustained release aminoglycoside antibiotics are surgically inserted into the bone as a treatment for chronic osteomyelitis, which is an intractable disease, and postoperative infection of open fractures. In Europe and the United States, treatment in which patients are implanted has been put into practical use.

【0003】0003

【発明が解決しようとする課題】しかしながら、用いた
高分子が、生体内で殆ど分解しないため、骨組織修復に
伴って徐々に除去していく必要がある。従って、手術後
に取り出す必要がなく、かつ、ハイドロキシアパタイト
、β−トリカルシウムホスフェートなどの人工骨成分を
含有して、骨組織修復を補填出来るような埋め込み剤が
、骨・関節感染症領域で望まれている。このような埋め
込み剤としては、ジャ−ナル  オブ  コントロ−ル
ドリリ−ズ  第2巻  179〜186頁1985年
(J.Controlled  Release  V
ol.2  179〜186(1985))に、ジベカ
シン、ハイドロキシアパタイトをポリ乳酸中に分散固化
したものが見られる。しかし、埋め込み剤からのジベカ
シンの放出は、初期放出量が比較的高い挙動を示した。 手術後に取り出す必要がない埋め込み剤を調製するには
、上記のようにポリ乳酸等の生体内分解性高分子を用い
るのが適しているが、薬物の放出速度を調節するという
点では必ずしも十分とは言えない。
[Problems to be Solved by the Invention] However, since the polymer used hardly decomposes in vivo, it is necessary to gradually remove it as bone tissue is repaired. Therefore, an implant that does not need to be taken out after surgery and that can supplement bone tissue repair by containing artificial bone components such as hydroxyapatite and β-tricalcium phosphate is desired in the field of bone and joint infections. ing. Such an implant is described in J. Controlled Release V, Journal of Controlled Releases, Vol. 2, pp. 179-186, 1985.
ol. 2 179-186 (1985)), dibekacin and hydroxyapatite are dispersed and solidified in polylactic acid. However, the release of dibekacin from the implant exhibited a relatively high initial release behavior. To prepare implants that do not need to be taken out after surgery, it is suitable to use biodegradable polymers such as polylactic acid as described above, but this is not always sufficient in terms of controlling the drug release rate. I can't say that.

【0004】そこで、本発明者らは薬物を含有する骨内
部埋め込み用製剤において、薬物の放出速度を調節し、
徐放化できる製剤について鋭意検討を長年にわたってお
こなった。その結果、次に示す方法を採用することによ
り上記の問題点を解決できることを見い出し、本発明を
完成した。
[0004] Therefore, the present inventors adjusted the release rate of the drug in a drug-containing preparation for implantation into the bone.
For many years, we have conducted extensive research into formulations that can be released in a sustained manner. As a result, the inventors discovered that the above problems could be solved by employing the following method, and completed the present invention.

【0005】[0005]

【課題を解決するための手段】すなわち、本発明は、薬
物、高分子物質、人工骨成分からなる薬物を含有する骨
内部用埋め込み剤において、薬物と高分子物質をあらか
じめ圧縮若しくは溶融した後固化した成型物を用いるこ
とを特徴とする薬物を含有する骨内部埋め込み用製剤で
ある。更に、本発明は薬物と高分子物質を混合し、圧縮
若しくは溶融固化せしめて成型物とした後、これを顆粒
状に解砕し、次いで人工骨成分を混合し、更に圧縮成型
することを特徴とする薬物を含有する骨内部用埋め込み
用製剤の製造方法である。
[Means for Solving the Problems] That is, the present invention provides a bone implant containing a drug, a polymeric substance, and an artificial bone component, in which the drug and the polymeric substance are compressed or melted in advance, and then solidified. This is a drug-containing preparation for implantation into bone, which is characterized by using a molded product. Furthermore, the present invention is characterized in that the drug and the polymeric substance are mixed and compressed or melted and solidified to form a molded product, which is then crushed into granules, and then an artificial bone component is mixed and further compression molded. This is a method for producing a preparation for implantation into bone containing a drug.

【0006】本発明によって得られた薬物を含有する骨
内部用埋め込み用製剤は、薬物が生体内で適度な速さで
放出されるように制御された製剤であり、各種疾患に適
した徐放化された骨内部埋め込み用製剤を得ることがで
きる。したがって、本発明の目的は、薬物の放出速度が
制御された新規な薬物を含有する骨内部埋め込み用製剤
を提供するにある。本発明における薬物は骨内部に埋め
込む必要があるものであれば、いかなるものでも使用可
能である。通常は抗生物質が用いられるが、必要に応じ
て抗ガン剤等の薬物も用いることができる。
[0006] The intraosseous implant preparation containing the drug obtained according to the present invention is a preparation that is controlled so that the drug is released at an appropriate rate in the body, and is a controlled release drug suitable for various diseases. A formulated preparation for implantation into bone can be obtained. Therefore, an object of the present invention is to provide a preparation for implantation into bone containing a novel drug with a controlled drug release rate. Any drug can be used in the present invention as long as it needs to be implanted inside the bone. Antibiotics are usually used, but drugs such as anticancer agents can also be used if necessary.

【0007】本発明における骨内部埋め込み用製剤の製
造法は一般に知られている方法を用いることができる。 例えば薬物と高分子を混合し、材料試験機あるいは圧延
機等で圧縮後、得られた成形物を乳バチあるいは解砕機
で解砕し、篩により必要な粒度のものを分取し、さらに
、ハイドロキシアパタイト等の人工骨成分を混合して打
錠機等を用いて錠剤あるいは適切な形態に圧縮加工すれ
ばよい。
[0007] Generally known methods can be used to produce the preparation for implantation into bone according to the present invention. For example, a drug and a polymer are mixed, compressed using a material testing machine or a rolling machine, the resulting molded product is crushed using a pestle or a crusher, and the required particle size is separated using a sieve. An artificial bone component such as hydroxyapatite may be mixed and compressed into a tablet or other appropriate form using a tablet machine or the like.

【0008】本発明における高分子物質とは、主として
生体内分解性高分子を指すが、合成又は天然起源のいず
れも用いることができる。例えば、合成高分子重合物の
例としては、ポリ乳酸、ポリグリコール酸、ポリ−α−
シアノアクリル酸エステル、ポリ−β−ヒドロキシ酪酸
、ポリオルソエステル、ポリアミノ酸等があげられる。 これらの高分子重合物は、一種でも、二種以上の共重合
物あるいは単なる混合物でもよく、またこれらの塩でも
よい。又、天然高分子の例としては、アルブミン、ゼラ
チン、コラーゲン、コンドロイチン硫酸、ヒアルロン酸
等があげられる。
[0008] The polymer substance in the present invention mainly refers to biodegradable polymers, but either synthetic or natural substances can be used. For example, examples of synthetic polymers include polylactic acid, polyglycolic acid, poly-α-
Examples include cyanoacrylic acid ester, poly-β-hydroxybutyric acid, polyorthoester, and polyamino acid. These polymers may be one type, a copolymer of two or more types, or a mere mixture, or a salt thereof. Further, examples of natural polymers include albumin, gelatin, collagen, chondroitin sulfate, hyaluronic acid, and the like.

【0009】これらの高分子の中で、2週間以上の長期
間に亘る徐放性を付与するのに好ましい高分子としては
、ポリ乳酸、あるいはポリ乳酸・グリコール酸共重合物
が挙げられる。
Among these polymers, polylactic acid and polylactic acid/glycolic acid copolymers are preferred for imparting sustained release over a long period of two weeks or more.

【0010】本発明における抗生物質とは、特に限定さ
れないが、アミノグリコシド系、ペニシリン系、セファ
ロスポリン系などいずれも用いることができる。例を挙
げれば、ゲンタマイシン、ジベカシン、トプラマイシン
、アミカシン、カネンドマイシン、リビドマイシン、シ
ソマイシン、フラジオマイシン、アンピシリン、ピペラ
シリン、チカルシリン、塩酸テトラサイクリン、塩酸オ
キシテトラサイクリン、セファロチン、セファロリジン
、セファゾリン、セフォチアム、セフォペラゾン、アズ
スレオナム、ヴァンコマイシン、アルベカシン、リファ
ンピシン等である。
[0010] The antibiotic used in the present invention is not particularly limited, but any of aminoglycosides, penicillins, cephalosporins, etc. can be used. Examples include gentamicin, dibekacin, topramycin, amikacin, canendomycin, lividomycin, sisomicin, fradiomycin, ampicillin, piperacillin, ticarcillin, tetracycline hydrochloride, oxytetracycline hydrochloride, cephalothin, cephaloridine, cefazolin, cefothiam, cefoperazone, These include azureonam, vancomycin, arbekacin, and rifampicin.

【0011】本発明における人工骨成分とは、整形外科
領域で骨充填剤として用いられている例えばハイドロキ
シアパタイト、β−トリカルシウムフォスフェート等の
無機塩をいうが、人工骨成分として用いられうるもので
あればよい。また、本発明における圧縮若しくは溶融後
固化した成型物とは固化した後何らかの方法で解砕した
ものを意味し、具体的に好ましい解砕物としては例えば
約12メッシュ篩を通過し、約42メッシュ篩に残存す
る解砕物をあげることができる。
[0011] The artificial bone component in the present invention refers to inorganic salts such as hydroxyapatite and β-tricalcium phosphate, which are used as bone fillers in the field of orthopedics, and those which can be used as artificial bone components. That's fine. In addition, in the present invention, a molded product that has been solidified after being compressed or melted means a product that has been solidified and then crushed by some method, and specifically preferred crushed products include, for example, those that have passed through an approximately 12-mesh sieve, and have passed through an approximately 42-mesh sieve. The remaining crushed material can be mentioned.

【0012】解砕物の粒度は250μ以上が好ましく、
さらに好ましくは350μ〜1400μとすることが好
ましい。本発明において高分子と薬物の配合率は特に限
定されず、適切な徐放性が得られるように自由に変える
ことができる。また、圧縮成形に際して必要ならばステ
アリン酸カルシウムあるいはタルク等の滑沢剤を配合す
ることができる。さらに、解砕した成形物と人工骨成分
の配合率も特に限定されず、適用疾患に適した比率にす
ればよく、圧縮成形に際しては必要ならば滑沢剤等の添
加剤を使用することができる。
[0012] The particle size of the crushed material is preferably 250μ or more,
More preferably, it is 350μ to 1400μ. In the present invention, the blending ratio of the polymer and drug is not particularly limited and can be freely changed so as to obtain appropriate sustained release properties. Furthermore, a lubricant such as calcium stearate or talc may be added if necessary during compression molding. Furthermore, the blending ratio of the crushed molded product and the artificial bone component is not particularly limited, and may be adjusted to a ratio appropriate for the disease to be treated, and additives such as lubricants may be used if necessary during compression molding. can.

【0013】本発明により得られた薬物を含有する骨内
部埋め込み用製剤は、含有する薬物の放出を制御するこ
とが可能であるが、必要により加熱あるいはコーティン
グなどの処理によって、更に放出速度の調節をすること
ができる。以下に本発明の具体的な実施例を示し、本発
明を更に詳細に説明するが、本発明はこれらの例に限定
されるものではない。
[0013] The drug-containing preparation for implantation into bone obtained according to the present invention can control the release of the drug contained therein, but if necessary, the release rate can be further adjusted by treatment such as heating or coating. can do. The present invention will be explained in more detail by showing specific examples of the present invention below, but the present invention is not limited to these examples.

【0014】[0014]

【実施例】実施例1 硫酸ゲンタマイシン10mg、ポリdl乳酸(数平均分
子量2000、200メッシュ篩通過粉末)90mgを
メノウ乳鉢で均一に混合磨砕した後、オートグラフAG
−5000A(島津製作所)で荷重300kgで圧縮し
て直径5mm、長さ5mmの成型物を得た。この成型物
をメノウ乳鉢で砕き、顆粒状となし、12メッシュ篩通
過、32メッシュ篩残存の顆粒25mgを骨充填剤ボー
ンセラムPG−1(0.1−0.3mm、住友製薬)2
5mgと混合し、オートグラフAG−5000Aで荷重
300kgにて圧縮して、重量50mg、直径3mm、
長さ5mmの成型物を得た。
[Example] Example 1 After uniformly mixing and grinding 10 mg of gentamicin sulfate and 90 mg of poly DL lactic acid (number average molecular weight 2000, powder passed through a 200 mesh sieve) in an agate mortar, Autograph AG
-5000A (Shimadzu Corporation) under a load of 300 kg to obtain a molded product with a diameter of 5 mm and a length of 5 mm. This molded product was crushed in an agate mortar to form granules, passed through a 12-mesh sieve, and 25 mg of the granules remaining on the 32-mesh sieve were added to the bone filler Bone Ceram PG-1 (0.1-0.3 mm, Sumitomo Pharmaceuticals) 2
5mg, compressed with Autograph AG-5000A under a load of 300kg, weight 50mg, diameter 3mm,
A molded article with a length of 5 mm was obtained.

【0015】実施例2 実施例1と同様の方法で、硫酸ゲンタマイシン、ポリd
l乳酸(数平均分子量2000、200メッシュ篩通過
粉末)、ボーンセラムPから成る、重量50mg、直径
3mm、長さ5mmの成型物を得た。この成型物をさら
に80℃の恒温槽で5時間加熱処理した。
Example 2 In the same manner as in Example 1, gentamicin sulfate, poly-d
A molded article having a weight of 50 mg, a diameter of 3 mm, and a length of 5 mm was obtained, consisting of lactic acid (number average molecular weight 2000, powder passed through a 200 mesh sieve) and Bone Ceram P. This molded product was further heat-treated in a constant temperature bath at 80° C. for 5 hours.

【0016】実施例3 硫酸ジベカシン15mg、ポリdl乳酸(数平均分子量
4000、200メッシュ篩通過粉末)85mgをメノ
ウ乳鉢で均一に混合磨砕した後、オートグラフAG−5
000A(島津製作所)で荷重300kgで圧縮して直
径5mm、長さ5mmの成型物を得た。この成型物をメ
ノウ乳鉢で砕き、顆粒状となし、12メッシュ篩通過、
32メッシュ篩残存の顆粒25mgを骨充填剤ボーンセ
ラムPG−1(0.1−0.3mm、住友製薬)25m
gと混合し、オートグラフAG−5000Aで荷重30
0kgにて圧縮して、直径3mm、長さ5mmの成型物
を得た。
Example 3 15 mg of dibekacin sulfate and 85 mg of poly dl lactic acid (number average molecular weight 4000, powder passed through a 200 mesh sieve) were uniformly mixed and ground in an agate mortar, and then mixed and ground using an Autograph AG-5.
000A (Shimadzu Corporation) under a load of 300 kg to obtain a molded product having a diameter of 5 mm and a length of 5 mm. This molded product was crushed in an agate mortar to form granules, passed through a 12 mesh sieve,
25 mg of the granules remaining on a 32 mesh sieve were added to the bone filler Bone Serum PG-1 (0.1-0.3 mm, Sumitomo Pharmaceuticals) 25 m
g and load 30 with Autograph AG-5000A.
It was compressed at 0 kg to obtain a molded product with a diameter of 3 mm and a length of 5 mm.

【0017】実施例4 硫酸ゲンタマイシン10mg、ポリdl乳酸(数平均分
子量2000、200メッシュ篩通過粉末)90mgを
メノウ乳鉢で均一に混合磨砕した後、オートグラフAG
−5000A(島津製作所)で荷重300kgで圧縮し
て直径5mm、長さ5mmの成型物を得た。この成型物
をメノウ乳鉢で砕き、顆粒状となし、12メッシュ篩通
過、32メッシュ篩残存の顆粒25mgを骨充填剤β−
トリカルシウムフォスフェート(0.1−0.3mm)
25mgと混合し、オートグラフAG−5000Aで荷
重300kgにて圧縮して、直径3mm、長さ5mmの
成型物を得た。この成型物をさらに、65℃で24時間
加熱処理を行った。
Example 4 After uniformly mixing and grinding 10 mg of gentamicin sulfate and 90 mg of poly dl lactic acid (number average molecular weight 2000, powder passed through a 200 mesh sieve) in an agate mortar, Autograph AG
-5000A (Shimadzu Corporation) under a load of 300 kg to obtain a molded product with a diameter of 5 mm and a length of 5 mm. This molded product was crushed in an agate mortar to form granules, passed through a 12-mesh sieve, and 25 mg of the granules remaining on the 32-mesh sieve were added to the bone filler β-
Tricalcium phosphate (0.1-0.3mm)
25 mg and compressed with Autograph AG-5000A under a load of 300 kg to obtain a molded product with a diameter of 3 mm and a length of 5 mm. This molded product was further heat-treated at 65° C. for 24 hours.

【0018】実施例5 塩酸オキシテトラサイクリン10mg、ポリdl乳酸(
数平均分子量2000、200メッシュ篩通過粉末)9
0mgをメノウ乳鉢で均一に混合磨砕した後、オートグ
ラフAG−5000A(島津製作所)で荷重300kg
で圧縮して直径5mm、長さ5mmの成型物を得た。こ
の成型物をメノウ乳鉢で砕き、顆粒状となし、12メッ
シュ篩通過、32メッシュ篩残存の顆粒25mgを骨充
填剤β−トリカルシウムフォスフェート(0.1−0.
3mm)25mgと混合し、オートグラフAG−500
0Aで荷重300kgにて圧縮して、直径3mm、長さ
5mmの成型物を得た。
Example 5 10 mg of oxytetracycline hydrochloride, polydl lactic acid (
Number average molecular weight 2000, powder passed through a 200 mesh sieve) 9
After uniformly mixing and grinding 0 mg in an agate mortar, the mixture was ground using an Autograph AG-5000A (Shimadzu Corporation) under a load of 300 kg.
A molded product with a diameter of 5 mm and a length of 5 mm was obtained. This molded product was crushed in an agate mortar to form granules, passed through a 12 mesh sieve, and 25 mg of the granules remaining on a 32 mesh sieve were mixed with bone filler β-tricalcium phosphate (0.1-0.
3mm) 25mg and Autograph AG-500
It was compressed at 0 A and a load of 300 kg to obtain a molded product with a diameter of 3 mm and a length of 5 mm.

【0019】実施例6 硫酸ゲンタマイシン10mg、ポリdl乳酸(数平均分
子量2000、200メッシュ篩通過粉末)90mgを
メノウ乳鉢で均一に混合磨砕した後、オートグラフAG
−5000A(島津製作所)で荷重300kgで圧縮し
て直径5mm、長さ5mmの成型物を得た。この成型物
をメノウ乳鉢で砕き、顆粒状となし、32メッシュ篩通
過、42メッシュ篩残存の顆粒25mgを骨充填剤ボー
ンセラムPG−1(0.1−0.3mm、住友製薬)2
5mgと混合し、オートグラフAG−5000Aで荷重
300kgにて圧縮して、直径3mm、長さ5mmの成
型物を得た。
Example 6 After uniformly mixing and grinding 10 mg of gentamicin sulfate and 90 mg of poly dl lactic acid (number average molecular weight 2000, powder passed through a 200 mesh sieve) in an agate mortar,
-5000A (Shimadzu Corporation) under a load of 300 kg to obtain a molded product with a diameter of 5 mm and a length of 5 mm. This molded product was crushed in an agate mortar to form granules, passed through a 32 mesh sieve, and 25 mg of the granules remaining on the 42 mesh sieve were added to the bone filler Bone Ceram PG-1 (0.1-0.3 mm, Sumitomo Pharmaceuticals) 2
5 mg and compressed using Autograph AG-5000A under a load of 300 kg to obtain a molded product with a diameter of 3 mm and a length of 5 mm.

【0020】[0020]

【発明の効果】次に、本発明の効果を詳細に説明するた
め、実験例を示す。 実験例 (1)方法 上述の実施例1,2,6および下記の比較例1で得られ
た、成型物を用いて、37℃pH7.4のフォスフェー
ト・バッファー中に静置した場合の放出率を経時的に測
定した。
[Effects of the Invention] Next, an experimental example will be shown to explain the effects of the present invention in detail. Experimental Example (1) Method Release when the molded products obtained in Examples 1, 2, and 6 above and Comparative Example 1 below are left standing in a phosphate buffer at 37°C, pH 7.4. The rate was measured over time.

【0021】比較例1 硫酸ゲンタマイシン2.5mg、ポリdl乳酸(数平均
分子量2000、200メッシュ篩通過粉末)22.5
mg、ボーンセラムPG−125mgをメノウ乳鉢で均
一に混合研和して、オートグラフAG−5000Aで荷
重300kgで圧縮した成型物。
Comparative Example 1 Gentamicin sulfate 2.5 mg, poly dl lactic acid (number average molecular weight 2000, powder passed through a 200 mesh sieve) 22.5
A molded product was obtained by uniformly mixing and grinding 125 mg of Bone Serum PG-1 in an agate mortar and compressing it with an Autograph AG-5000A under a load of 300 kg.

【0022】(2)結果 結果を図1に示す。 図1において、縦軸はゲンタマイシンの放出率(%)を
示し、横軸は時間(日)を示す。図1から明らかな如く
、本発明によって得られた骨内部埋め込み用製剤は、比
較例に較べて、徐放性を示した。
(2) Results The results are shown in FIG. In FIG. 1, the vertical axis shows the release rate (%) of gentamicin, and the horizontal axis shows time (days). As is clear from FIG. 1, the preparation for intraosseous implantation obtained according to the present invention exhibited sustained release properties compared to the comparative example.

【0023】[0023]

【図面の簡単な説明】[Brief explanation of the drawing]

【図1】硫酸ゲンタマイシンの放出率を示す。縦軸はゲ
ンタマイシンの放出率(%)を示し、横軸は時間(日)
を示す。
FIG. 1 shows the release rate of gentamicin sulfate. The vertical axis shows the release rate (%) of gentamicin, and the horizontal axis shows time (days).
shows.

Claims (14)

【特許請求の範囲】[Claims] 【請求項1】  薬物、高分子物質、人工骨成分からな
る骨内部用埋め込み剤において、薬物と高分子物質を圧
縮した成型物若しくは溶融した後固化した成型物を用い
ることを特徴とする薬物を含有する骨内部埋め込み用製
剤。
Claim 1: A bone implant comprising a drug, a polymeric substance, and an artificial bone component, characterized by using a molded product obtained by compressing the drug and the polymeric substance, or a molded product obtained by melting and solidifying the drug and the polymeric substance. Contains a preparation for implantation into the bone.
【請求項2】  薬物が抗生物質である請求項1記載の
骨内部埋め込み用製剤。
2. The preparation for implantation into bone according to claim 1, wherein the drug is an antibiotic.
【請求項3】  抗生物質が、ゲンタマイシン、ジベカ
シン、トプラマイシン、アミカシン、カネンドマイシン
、リビドマイシン、シソマイシン、フラジオマイシン、
アンピシリン、ピペラシリン、チカルシリン、塩酸テト
ラサイクリン、塩酸オキシテトラサイクリン、セファロ
チン、セファロリジン、セファゾリン、セフォチアム、
セフォペラゾン、アズスレオナム、ヴァンコマイシン、
アルベカシン、リファンピシンから選択された1種また
は2種以上の抗生物質である請求項1または2記載の骨
内部埋め込み用製剤。
3. The antibiotic is gentamicin, dibekacin, topramycin, amikacin, canendomycin, lividomycin, sisomicin, fradiomycin,
ampicillin, piperacillin, ticarcillin, tetracycline hydrochloride, oxytetracycline hydrochloride, cephalothin, cephaloridine, cefazolin, cefotiam,
cefoperazone, azureonam, vancomycin,
The preparation for implantation into bone according to claim 1 or 2, which is one or more antibiotics selected from arbekacin and rifampicin.
【請求項4】  高分子物質が生体内分解性高分子物質
である請求項1記載の骨内部埋め込み用製剤。
4. The preparation for implantation into bone according to claim 1, wherein the polymeric substance is a biodegradable polymeric substance.
【請求項5】  高分子物質がポリ乳酸,ポリグリコー
ル酸,ポリ−α−シアノアクリル酸エステル,ポリ−β
−ヒドロキシ酪酸,ポリオルソエステル,ポリアミノ酸
,ゼラチン,コラーゲン,コンドロイチン硫酸,ヒアル
ロン酸,アルブミンから選択された1種または2種以上
の混合物あるいは共重合物である請求項1記載の骨内部
埋め込み用製剤。
Claim 5: The polymer substance is polylactic acid, polyglycolic acid, poly-α-cyanoacrylate, poly-β
- The preparation for implantation into bone according to claim 1, which is a mixture or copolymer of one or more selected from hydroxybutyric acid, polyorthoester, polyamino acid, gelatin, collagen, chondroitin sulfate, hyaluronic acid, and albumin. .
【請求項6】  高分子物質がポリ乳酸である請求項1
記載の骨内部埋め込み用製剤。
Claim 6: Claim 1 wherein the polymeric substance is polylactic acid.
The preparation for implantation into the bone described above.
【請求項7】  人工骨成分がハイドロキシアパタイト
,β−トリカルシウムフォスフェートから選択された1
種または2種の人工骨成分である請求項1記載の骨内部
埋め込み用製剤。
[Claim 7] The artificial bone component is selected from hydroxyapatite and β-tricalcium phosphate.
The preparation for implantation into bone according to claim 1, which is one or two kinds of artificial bone components.
【請求項8】  高分子と薬物を圧縮した成型物が、2
50μ以上である請求項1記載の骨内部埋め込み用製剤
Claim 8: A molded product obtained by compressing a polymer and a drug is 2
The preparation for implantation into bone according to claim 1, which has a diameter of 50μ or more.
【請求項9】  高分子と薬物を溶融後固化した成型物
が250μ以上である請求項1記載の骨内部埋め込み用
製剤。
9. The preparation for implantation into bone according to claim 1, wherein the molded product obtained by melting and solidifying the polymer and the drug has a size of 250 μm or more.
【請求項10】  薬物を含有する骨内部用埋め込み剤
を製造する際、薬物と高分子物質を混合し、圧縮若しく
は溶融固化せしめて成型物とした後、これを顆粒状に解
砕し、次いで人工骨成分を混合し、更に圧縮成型するこ
とを特徴とする薬物を含有する骨内部埋め込み用製剤の
製造方法。
10. When manufacturing a bone implant containing a drug, the drug and a polymeric substance are mixed and compressed or melted and solidified to form a molded product, which is then crushed into granules, and then A method for producing a drug-containing preparation for implantation into bone, which comprises mixing artificial bone components and compression molding the mixture.
【請求項11】  高分子物質が請求項5記載の高分子
物質である請求項10記載の骨内部埋め込み用製剤の製
造方法。
11. The method for producing a preparation for implantation into bone according to claim 10, wherein the polymeric substance is the polymeric substance according to claim 5.
【請求項12】  高分子物質がポリ乳酸である請求項
10記載の骨内部埋め込み用製剤の製造方法。
12. The method for producing a preparation for implantation into bone according to claim 10, wherein the polymeric substance is polylactic acid.
【請求項13】  薬物が請求項3記載の抗生物質であ
る請求項10記載の骨内部埋め込み用製剤の製造方法。
13. The method for producing a preparation for implantation into bone according to claim 10, wherein the drug is the antibiotic according to claim 3.
【請求項14】  人工骨成分が請求項7記載の人工骨
成分である請求項10記載の骨内部埋め込み用製剤の製
造方法。
14. The method for producing a preparation for implantation into a bone according to claim 10, wherein the artificial bone component is the artificial bone component according to claim 7.
JP3153805A 1990-05-31 1991-05-30 Pharmaceutical preparation for embedding in bone Pending JPH04279520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3153805A JPH04279520A (en) 1990-05-31 1991-05-30 Pharmaceutical preparation for embedding in bone

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2-139885 1990-05-31
JP13988590 1990-05-31
JP3153805A JPH04279520A (en) 1990-05-31 1991-05-30 Pharmaceutical preparation for embedding in bone

Publications (1)

Publication Number Publication Date
JPH04279520A true JPH04279520A (en) 1992-10-05

Family

ID=26472566

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3153805A Pending JPH04279520A (en) 1990-05-31 1991-05-30 Pharmaceutical preparation for embedding in bone

Country Status (1)

Country Link
JP (1) JPH04279520A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2285924A (en) * 1994-01-29 1995-08-02 Cho Se Hyun Polymer beads containing antibiotics for use in orthopaedic surgery
JPH10229A (en) * 1996-04-19 1998-01-06 Dainippon Ink & Chem Inc Slow-releasable bioactive and bioabsorbable organic-inorganic compounded material having bone inducing or bone conducting function
GB2281709B (en) * 1993-09-14 1998-04-08 Fujitsu Ltd Biodegradable resin moulded article
WO1999012554A1 (en) * 1997-09-09 1999-03-18 The University Of Western Australia Chemical supplementation of bone
EP0911355A3 (en) * 1997-10-21 2000-03-01 Aesculap AG & Co. KG Resorbable polyester
JP2001517613A (en) * 1997-09-22 2001-10-09 バフォード バイオメディカル, インコーポレイテッド Inorganic-polymer conjugates for controlled release of drug-containing compounds
AU755049B2 (en) * 1997-09-09 2002-12-05 Robert Edward Day Chemical supplementation of bone
US6894027B2 (en) 2000-07-19 2005-05-17 The Board Of Regents, The University Of Texas System Stimulation of bone growth with thrombin peptide derivatives
JP2005161062A (en) * 1995-02-10 2005-06-23 Purdue Res Found Bone transplantation composition

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2281709B (en) * 1993-09-14 1998-04-08 Fujitsu Ltd Biodegradable resin moulded article
GB2285924A (en) * 1994-01-29 1995-08-02 Cho Se Hyun Polymer beads containing antibiotics for use in orthopaedic surgery
GB2285924B (en) * 1994-01-29 1998-01-28 Cho Se Hyun Polymer beads containing antibiotics for use in orthopaedic surgery
JP2005161062A (en) * 1995-02-10 2005-06-23 Purdue Res Found Bone transplantation composition
JPH10229A (en) * 1996-04-19 1998-01-06 Dainippon Ink & Chem Inc Slow-releasable bioactive and bioabsorbable organic-inorganic compounded material having bone inducing or bone conducting function
JP2001515761A (en) * 1997-09-09 2001-09-25 ザ・ユニヴァーシティ・オヴ・ウェスタン・オーストラリア Chemical replenishment of bone
AU755049B2 (en) * 1997-09-09 2002-12-05 Robert Edward Day Chemical supplementation of bone
WO1999012554A1 (en) * 1997-09-09 1999-03-18 The University Of Western Australia Chemical supplementation of bone
JP2001517613A (en) * 1997-09-22 2001-10-09 バフォード バイオメディカル, インコーポレイテッド Inorganic-polymer conjugates for controlled release of drug-containing compounds
EP0911355A3 (en) * 1997-10-21 2000-03-01 Aesculap AG & Co. KG Resorbable polyester
US6894027B2 (en) 2000-07-19 2005-05-17 The Board Of Regents, The University Of Texas System Stimulation of bone growth with thrombin peptide derivatives
US6914050B2 (en) 2000-07-19 2005-07-05 The Board Of Regents, The University Of Texas System Stimulation of bone growth with thrombin peptide derivatives
US7304035B2 (en) 2000-07-19 2007-12-04 Orthologic Corp. Stimulation of bone growth with thrombin peptide derivatives

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