JPS61135652A - Implant bone piece - Google Patents

Implant bone piece

Info

Publication number
JPS61135652A
JPS61135652A JP60033629A JP3362985A JPS61135652A JP S61135652 A JPS61135652 A JP S61135652A JP 60033629 A JP60033629 A JP 60033629A JP 3362985 A JP3362985 A JP 3362985A JP S61135652 A JPS61135652 A JP S61135652A
Authority
JP
Japan
Prior art keywords
bone graft
bone
graft
screw
bed
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
JP60033629A
Other languages
Japanese (ja)
Inventor
ホセ、マヌエル、オテロ、ビチ
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of JPS61135652A publication Critical patent/JPS61135652A/en
Pending legal-status Critical Current

Links

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
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4611—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • 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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • A61F2/446—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages having a circular or elliptical cross-section substantially parallel to the axis of the spine, e.g. cylinders or frustocones
    • 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
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4601—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
    • 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
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/442—Intervertebral or spinal discs, e.g. resilient
    • 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
    • A61F2002/2839—Bone plugs or bone graft dowels
    • 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
    • A61F2002/30224—Three-dimensional shapes cylindrical
    • 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
    • A61F2002/30795—Blind bores, e.g. of circular cross-section
    • 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
    • A61F2002/3085—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface
    • A61F2002/30866—Rounded threads
    • 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
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2002/4619—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof for extraction
    • 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
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2002/4625—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use
    • A61F2002/4627—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
    • 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
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2002/4625—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use
    • A61F2002/4628—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use with linear motion along or rotating motion about an axis transverse to the instrument axis or to the implantation direction, e.g. clamping
    • 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0069—Three-dimensional shapes cylindrical

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、目的物に対して正確な位置関係をもって容易
に挿置し得るようにした移植骨片に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a bone graft that can be easily inserted into a target object in a precise positional relationship.

〔従来技術と問題点〕[Conventional technology and problems]

頚部の体内関節固定を実施する外科的方法を記載した研
究論文が、スミスロビンソン、プリーメーカやクロツク
ドにより、３０年前に発表されて以来この技術分野の変
化はきわめて少ない。これは彼らの技術的方法の明白な
優秀性、即ち比較的実施容易で、危険性が少なく、また
すぐれた結果が得られることによるものである。Very little has changed in this field of technology since the publication by Smith-Robinson, Priemaker, and Clocked 30 years ago of a research paper describing a surgical method for performing cervical internal arthrodesis. This is due to the obvious superiority of their technical methods, which are relatively easy to implement, have little risk, and give excellent results.

クロツクドの技術（円筒形移植骨片による前部体内関節
固定法）はスペイン国の病院のみならず世界中の多くの
外傷治療機関および神経外科機関においてもつとも広く
使用されていることを考慮して、出願人はこの技術を用
いる出願人自身の実験により臨床的および実験的研究を
開始した。これは過去５年間に手術された約３００人の
患者に及ぶものである。この意味において、移植骨片お
よびクロツクドの基本的手術器具の一部の要素について
大きな変更が加えられ、このような変更くより、医学文
献にしばしば見られるような手術中および手術後の多く
の合併症を除くことができた。Considering that the Crotscudo technique (anterior internal arthrodesis with cylindrical bone grafts) is widely used not only in Spanish hospitals but also in many trauma and neurosurgical institutions around the world, Applicant has begun clinical and experimental studies with Applicant's own experiments using this technology. This represents approximately 300 patients operated on over the past five years. In this sense, significant changes have been made to the bone grafts and some elements of the basic surgical instruments of the clotted bone, and these changes have led to many intra- and post-operative complications often found in the medical literature. I was able to get rid of the disease.

この外科技術に対する出願人の貢献は下記のコ点にまと
められる。The applicant's contributions to this surgical technique can be summarized in the following points.

ａ）　　対応の体内開腔の中に植込まれる平滑面円筒形
移植骨片の代わりに、ねじ山またはコイルを備えた移植
骨片を用いること。a) Using a threaded or coiled bone graft instead of a smooth cylindrical bone graft implanted into the corresponding open body cavity.

ｂ）前記移植骨片のねじ込み挿入を実施するだめの二種
類の器具の設計。b) Design of two types of instruments for carrying out the screw insertion of the bone graft.

〔発明の目的および効果〕[Object and effect of the invention]

本発明による技術工程を下記に略説する。移植骨片を得
たのち患者自身の腸骨稜の同一組織抽出により、または
同種組織移植骨片を使用し、あるいはキールサージボー
ン異性組織移植骨片を用いることＫよって、特に設計さ
れあらかじめ滅菌された小型旋盤を用いて移植骨片の上
にねじ山を外科的に加工する。この方法によれば、ねじ
山を非常に容易Ｋまた急速に備えることができ、みぞは
所要の深さに成すことができる。異性組織移植骨片の場
合には、好ましくはこの移植骨片の製造工程中にコイル
をねじ切る。The technical steps according to the invention are outlined below. After obtaining the bone graft, a specially designed and pre-sterilized bone graft can be obtained by extracting the same tissue from the patient's own iliac crest, or by using an allogeneic bone graft, or by using a Keel Surge Bone allograft. Screw threads are surgically machined onto the bone graft using a small lathe. With this method, the thread can be provided very easily and quickly, and the groove can be made to the required depth. In the case of a heterogeneous bone graft, the coils are preferably threaded during the manufacturing process of the bone graft.

クロウワドの標準技術によって頚椎部の前側が準備され
ている間に、前記のようにして得られた螺旋形移植骨片
が十分な滅菌状態に保持される。The helical bone graft thus obtained is maintained in sufficient sterility while the anterior side of the cervical vertebrae is prepared according to Crowd's standard technique.

対応の椎骨間腔の中に円筒形受容床が穿孔されたのち、
特にその目的に設計された器具を用いて移植骨片をねじ
込む。After a cylindrical receiving bed is drilled into the corresponding intervertebral space,
Screw the bone graft using instruments specifically designed for that purpose.

〔実施例〕〔Example〕

以下本発明を図面に示す実施例について詳細に説明する
。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments shown in the drawings.

第９図において符号／は、移植骨片であって、この移植
骨片ｌは、全体形状を円柱状をなし、外周面にねじ部コ
を有して構成されている。上記ねじ部コのねじ山高さは
必要に応じて可変する。また移植骨片ｌの一端面にはね
じ孔２ａが形成されている。そして上記移植骨片／は取
付器具３により保持されるようになっている。In FIG. 9, reference numeral / indicates a bone graft, and this bone graft l has a cylindrical overall shape and has a threaded portion on its outer circumferential surface. The height of the thread of the above-mentioned threaded portion can be varied as necessary. Further, a screw hole 2a is formed in one end surface of the bone graft l. The bone graft/bone graft is then held by a mounting device 3.

上記取付器具３は、前端部分に保持ヘラドグを有し、こ
の保持ヘッド弘の端面には中心位置に中央ねじ夕および
この中央ねじりの対称位置に保持ピン６．６が設けられ
ている。上記中央ねじりに一体に連接された案内ロッド
７の端部にはねじｇを有するつまみ？が設げられており
、ねじｊを取付器具Ｊに設けたねじ１０に螺合すること
で案内ロッド７が可動になっている（第１図）。The mounting device 3 has a holding head dog at its front end, and the end face of this holding head is provided with a central screw head at the center and a holding pin 6.6 at a position symmetrical to the central twist. At the end of the guide rod 7 integrally connected to the central twist, there is a knob having a thread g. is provided, and the guide rod 7 is made movable by screwing the screw j into a screw 10 provided on the mounting device J (FIG. 1).

保持ヘッド弘の寸法は移植骨片の大きさに応じて取替可
能である。The dimensions of the retaining head can be changed depending on the size of the bone graft.

しかして第１図に示すように、取付器具Ｊの中央ねじ！
を、移植骨片ｌのねじ部コに合わせ、つまみデを回わす
と、取付器具３に移植骨片ｌが保持される（第一図）。However, as shown in Figure 1, the central screw of the mounting device J!
When aligned with the threaded part of the bone graft l and turning the knob, the bone graft l is held in the attachment device 3 (Figure 1).

使用に際しては、第一図に示すように移植骨片／を保持
した取付器具３を、予め椎骨間腔に穿孔された移植床（
図示せず）に対して移植床に設ゆたねじ部に移植骨片／
が対向する　に置き、取付器具Ｊを回わすことで移植骨
片ｌを移植床に固着する。In use, as shown in Figure 1, the attachment device 3 holding the bone graft/graft is attached to the graft bed (
(not shown) in the graft bed.
Place the bone graft L on the opposite side, and fix the bone graft L to the graft bed by rotating the fixing device J.

移植骨片／の固着が終ったら、つまみりを回わすと、中
央ねじ５が取付器具Ｊより引込む方向に動き、中央ねじ
りの先端が保持ピン６、乙の先端面より上方に位置する
と、中央ねじ５が移植骨片ｌから離れることになる。After fixation of the bone graft / is completed, turn the knob to move the central screw 5 in the direction of retraction from the mounting device J, and when the tip of the central screw is located above the tip of the retaining pin 6, the center The screw 5 will be separated from the bone graft l.

ついで取付器具３を動かすと、取付器具３は移植骨片／
から離れ、移植骨片ｌの移植床への固着が完了する。Then, when the attachment device 3 is moved, the attachment device 3 will move the bone graft/
, and the fixation of the graft bone l to the graft bed is completed.

第７図ないし第６図は本発明の他の実施例を示すもので
あって、この実施例においては、取付器具ｍに設けた保
持ヘッド２１は、長手方向に設けたスリット二により形
成される複数の保持片ｎ、ｎ・・・を有し、移植骨片／
を保持片ｎ、ｎ・・・で囲むようにした後、取付器具Ｊ
に設けたつまみコタを回わすことで、保持片ｎを半径方
向に動かし、保持片刃、３・・・により移植骨片／の外
周面を挟着せしめるようにしている。保持ヘッドコｌは
、ねじを有する中心軸コによってつまみ評に対して連結
されている。移植骨片ｔを椎骨問答植床の中にねじ込み
移植したのち、つまみ評を逆方向に回転させるだけで取
付器具除去され、移植骨片／が先に穿孔された移植床の
穴の中にねじ込まれて残る。7 to 6 show another embodiment of the invention, in which the holding head 21 on the mounting device m is formed by a longitudinal slit 2. It has a plurality of retaining pieces n, n..., and the bone graft/
After surrounding it with holding pieces n, n..., attach the mounting fixture J.
By turning the knob provided in the holder, the holding piece n is moved in the radial direction, and the outer circumferential surface of the bone graft is clamped by the holding blades 3. The holding head l is connected to the gripper by means of a threaded central axle. After screwing and transplanting the bone graft into the vertebral implant bed, the attachment device is removed by simply rotating the knob in the opposite direction, and the bone graft is screwed into the hole in the transplant bed that was previously drilled. remains.

標準技術に比べて、本発明の目的を成す移植骨片を使用
する利点は下記の通りである。すなわち螺旋形移植骨片
を緩やかに挿入することができるので下記を避けること
ができる。The advantages of using the bone graft object of the present invention compared to standard techniques are as follows. That is, since the helical bone graft can be inserted gently, the following can be avoided.

／　　＆）移植骨片の基部に対して直接に反復して加え
られる、場合によっては乱暴なハンマー衝撃による背髄
挫傷の可能性。このような重大な神経性合併症が背髄症
患者に加えられ、これと共に背髄脆弱性が生じる場合が
ある。この点に関しては文献および出願人の個人的経験
は幸にして少ないのであるが、対応の髄質部分の前面に
おける反復された無分別な外傷状態ののちに、四肢不全
麻痺、呼吸不整および転帰の症例さえもが報告されてい
る。/ &) Possible dorsal spinal cord contusion due to repeated and sometimes violent hammer impacts applied directly to the base of the bone graft. These serious neurological complications can be added to patients with dorsal myelopathy, along with spinal cord weakness. Although the literature and the applicant's personal experience in this regard are fortunately sparse, there have been cases of quadriparesis, respiratory irregularities and outcome after repeated and injudicious traumatic conditions in the anterior aspect of the corresponding medullary area. Even has been reported.

ｂ）ハンマーの衝撃による移植骨片の破断。b) Fracture of bone graft due to hammer impact.

Ｃ）移植骨片が背髄管に侵入する可能性も避けられる。C) The possibility of bone grafts entering the dorsal medullary canal is also avoided.

なぜかならば、この場合、受容床の中への骨片の深さを
完全に計算することができるからである。従来の方法の
場合はこれと異なり、ハンマーの衝撃を計算することが
常に困難であるから、当然（不幸な結果をもたらす。This is because in this case the depth of the bone fragment into the receiving bed can be completely calculated. This is not the case with conventional methods, as it is always difficult to calculate the impact of the hammer, which naturally leads to unfortunate results.

ユ　骨片の挿入深さを完全に計算することができるので
、骨片を椎骨体の後側の自由縁まで導入することができ
、これは椎骨間腔の低下と二次的彎曲とを防止するのく
役立つ。Since the insertion depth of the bone fragment can be completely calculated, it is possible to introduce the bone fragment to the posterior free edge of the vertebral body, which prevents lowering of the intervertebral space and secondary curvature. Very helpful.

ユ　手術中または手術後の合併症が現われても（血腫、
背髄圧縮、呼吸変調など）、移植骨片の抽出が容易に実
施できる。Even if complications occur during or after surgery (hematoma,
(dorsal spinal cord compression, respiratory modulation, etc.) and extraction of bone grafts can be easily performed.

偶ねじ込み方法の故に受容床よりも広い直径の移植骨片
を挿入することができるので、椎骨間腔の中の固定度が
強くなる。なぜかならばこれら両方の要素（ねじ山と直
径）が関節固定の強さを増大し、従って滑りが困＊にな
るからである。Because of the double threading method, it is possible to insert a bone graft with a wider diameter than the receiving bed, thereby increasing the degree of fixation within the intervertebral space. This is because both of these factors (thread and diameter) increase the strength of the joint fixation and thus make slipping difficult*.

よ頚部骨折脱臼患者を出願人は現在まで手術したことは
ないが、強く脱臼した頚椎を有する死体について広く研
究した結果、螺旋形移植骨片は負傷部の固定のために平
滑面骨片よりも明らかＫすぐれていることが明かになっ
た。Although the applicant has not operated on patients with severe cervical fractures and dislocations, he has extensively studied cadavers with severely dislocated cervical vertebrae and has found that helical bone grafts are more effective than smooth bone grafts for stabilization of injured areas. It became clear that K was clearly superior.

本発明は前記の説明のみに限定されるものでなく、その
主旨の範囲内において任意に変更実施できる。　　゛The present invention is not limited to the above description, and can be modified or implemented as desired within the scope of the spirit thereof.゛

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

第１図は本発明による移植骨片および取付器具の斜視図
、第２図は取付器具の断面図、第３図は同取付器具の移
植骨片を取外した状態を示す図、第弘図ないし第６図は
本発明の他の実施例を示す図である。 ハ・・移植骨片、コ・・・ねじ部、コａ・・・ねじ孔、
Ｊ・・・取付器具、弘・・・保持ヘッド、！・・・中央
ねじ、６・・・保持ピン。 出顧人代理人　　猪　股　　　　清 ＦＪＧ、３FIG. 1 is a perspective view of a bone graft and attachment device according to the present invention, FIG. 2 is a sectional view of the attachment device, FIG. 3 is a view of the attachment device with the bone graft removed, and FIG. FIG. 6 is a diagram showing another embodiment of the present invention. C... Grafted bone fragment, Ko... Screw part, Core a... Screw hole,
J...Mounting device, Hiro...Holding head,! ...Central screw, 6...Retaining pin. Client agent Kiyoshi Inomata FJG, 3

Claims (1)

【特許請求の範囲】[Claims] 同一組織、同種組織または異質組織の移植骨片において
、上記移植骨片は外周面にねじ部を有する同筒形をなし
、対応の椎骨間腔に穿孔された円筒形受容床に螺着する
ようしたことを特徴とする移植骨片。In the bone graft of the same tissue, allogeneic tissue, or foreign tissue, the bone graft has the same cylindrical shape with a threaded portion on the outer circumferential surface so as to be screwed into a cylindrical receiving bed drilled in the corresponding intervertebral space. A bone graft characterized by:
JP60033629A 1984-11-30 1985-02-21 Implant bone piece Pending JPS61135652A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES1984283078U ES283078Y (en) 1984-11-30 1984-11-30 BONE INSERT FOR CERVICAL INTERSOMATIC ARTHRODESIS
ES283078 1984-11-30

Publications (1)

Publication Number Publication Date
JPS61135652A true JPS61135652A (en) 1986-06-23

Family

ID=8433212

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60033629A Pending JPS61135652A (en) 1984-11-30 1985-02-21 Implant bone piece

Country Status (3)

Country Link
JP (1) JPS61135652A (en)
DE (1) DE3505567A1 (en)
ES (1) ES283078Y (en)

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US5968098A (en) * 1996-10-22 1999-10-19 Surgical Dynamics, Inc. Apparatus for fusing adjacent bone structures
US6190414B1 (en) 1996-10-31 2001-02-20 Surgical Dynamics Inc. Apparatus for fusion of adjacent bone structures
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Also Published As

Publication number Publication date
ES283078U (en) 1985-05-01
ES283078Y (en) 1985-12-16
DE3505567A1 (en) 1986-06-05

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