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JP2017221625A - Internal fixator of fracture - Google Patents

Internal fixator of fracture Download PDF

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JP2017221625A
JP2017221625A JP2016132031A JP2016132031A JP2017221625A JP 2017221625 A JP2017221625 A JP 2017221625A JP 2016132031 A JP2016132031 A JP 2016132031A JP 2016132031 A JP2016132031 A JP 2016132031A JP 2017221625 A JP2017221625 A JP 2017221625A
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fixing
fracture
corkscrew
internal
bone
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田中　栄
Sakae Tanaka
栄 田中
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Abstract

【課題】大腿骨頸部骨折等の骨折は内固定具で手術固定する場合がある。従来の方法では、術後、早期歩行を行う場合、大腿骨骨頭付近の内固定具に過重が集中しすぎ、痛みや固定の破たんが発生することがある。この不具合の発生を抑制する。
【解決手段】近位骨の固定にコルクスクリュー様構造固定部を設けることにより、大腿骨骨頭付近の内固定部への過重の集中に対し強い固定力を与える。
【選択図】図４A fracture such as a femoral neck fracture may be surgically fixed with an internal fixture. In the conventional method, when performing early walking after surgery, excessive weight may be concentrated on the internal fixation device near the femoral head, which may cause pain or fracture of fixation. The occurrence of this problem is suppressed.
By providing a corkscrew-like structure fixing portion for fixing the proximal bone, a strong fixing force is applied to the concentration of excessive weight on the internal fixing portion in the vicinity of the femoral head.
[Selection] Figure 4

Description

本発明は、骨の骨折を固定するための、内固定具であり、例えば整形外科学分野における、大腿骨頸部骨折での固定に用いる。またその他の骨接合に用いる。  The present invention is an internal fixation device for fixing a bone fracture, and is used, for example, for fixation in a femoral neck fracture in the field of orthopedics. Also used for other osteosynthesis.

図１のように大腿骨頸部骨折などにおいて、骨折１がある場合、骨折部分は、近位骨２と、遠位骨３に分かれる。この時、図２や図３のように固定する方法があった。図２は、フック部分で、図３は、ネジ部分で近位骨２を固定する方法である。    In a femoral neck fracture or the like as shown in FIG. 1, when there is a fracture 1, the fracture portion is divided into a proximal bone 2 and a distal bone 3. At this time, there was a fixing method as shown in FIGS. 2 shows a method of fixing the proximal bone 2 with a hook portion, and FIG. 3 shows a method of fixing the proximal bone 2 with a screw portion.

しかし、この方法では近位骨２と、遠位骨３間の固定力や引き抜き力が十分大きくなかった。  However, in this method, the fixing force and the pulling force between the proximal bone 2 and the distal bone 3 are not sufficiently large.

問題は、従来の方法で近位骨２と遠位骨３の間の骨折１を接合した場合、骨折がずれてしまうことがあった。    The problem is that when the fracture 1 between the proximal bone 2 and the distal bone 3 is joined by a conventional method, the fracture may be displaced.

解決しようとする問題点は、近位骨２と、遠位骨３間の固定力や引き抜き力を十分大きくすることである。  The problem to be solved is to make the fixing force and the pulling force between the proximal bone 2 and the distal bone 3 sufficiently large.

問題を解決するための手段Means to solve the problem

図４に示すように、本発明は、本内固定具４での近位骨２の固定にコルクスクリュー様構造固定部５を設けていることを特徴とする。  As shown in FIG. 4, the present invention is characterized in that a corkscrew-like structure fixing part 5 is provided for fixing the proximal bone 2 with the inner fixing tool 4.

発明の効果Effect of the invention

本発明の内固定具では、コルクスクリュー様構造固定部５を設けているため、近位骨２と、遠位骨３間の固定力や引き抜き力を、従来より格段に大きくできる。これにより、従来の固定具に比べ、骨折部が痛みの原因になったりしにくくなる利点がある。コルクスクリュー様構造固定部５のピッチは先端に行くほど広くしたり、狭くすることで骨接合力を変えることができる。  In the inner fixing tool of the present invention, since the corkscrew-like structure fixing portion 5 is provided, the fixing force and the pulling force between the proximal bone 2 and the distal bone 3 can be remarkably increased as compared with the conventional one. Thereby, compared with the conventional fixing tool, there exists an advantage that a fracture part becomes difficult to cause a pain. By increasing or decreasing the pitch of the corkscrew-like structure fixing portion 5 toward the tip, the osteosynthesis can be changed.

大腿骨頸部骨折の説明図である。It is explanatory drawing of a femoral neck fracture. 背景技術の説明図である。It is explanatory drawing of background art. 背景技術の説明図である。It is explanatory drawing of background art. 本発明の説明図である。It is explanatory drawing of this invention. 本発明の説明図である。It is explanatory drawing of this invention. 本発明の説明図である。It is explanatory drawing of this invention. 本発明の説明図である。It is explanatory drawing of this invention. 本発明の説明図である。It is explanatory drawing of this invention. 本発明の説明図である。It is explanatory drawing of this invention. 本発明の説明図である。It is explanatory drawing of this invention. 本発明の説明図である。It is explanatory drawing of this invention.

本内固定具４は、近位骨２を固定するためのコルクスクリュー様構造固定部５があることで、近位骨２と、遠位骨３間の固定力や引き抜き力を、従来より格段に大きくでき従来の固定強度の問題を解決した。  The present internal fixing device 4 has a corkscrew-like structure fixing portion 5 for fixing the proximal bone 2, so that the fixing force and the pulling force between the proximal bone 2 and the distal bone 3 can be remarkably improved. The conventional fixed strength problem can be solved.

大腿骨頚部内側骨折用の本実施例の最良の形態では、本内固定具４は、図４のように近位骨２を固定するためのコルクスクリュー様構造固定部５があり、遠位骨３に固定する筒６からなる。筒６はコルクスクリュー様構造固定部５との間で挿入されずれることができるスライデイング構造になっている。また筒６は大腿骨皮質に固定するためのネジ構造７がある。この筒６は必ずしも必要ではない。また筒６の大腿骨皮質に固定するための手段は必ずしもネジ構造でなくともよい。通常本内固定具４は、図５のように、複数個用いる。  In the best mode of this embodiment for the femoral neck inner fracture, the internal fixation device 4 has a corkscrew-like structure fixing portion 5 for fixing the proximal bone 2 as shown in FIG. 3 is a cylinder 6 fixed to 3. The cylinder 6 has a sliding structure that can be inserted between the corkscrew-like structure fixing part 5. The cylinder 6 has a screw structure 7 for fixing to the femoral cortex. This cylinder 6 is not always necessary. Further, the means for fixing to the femoral cortex of the cylinder 6 does not necessarily have a screw structure. Usually, a plurality of the inner fixing tools 4 are used as shown in FIG.

大腿骨頚部外側骨折用の本実施例の形態例では、本内固定具は、図６のように近位骨２を固定するためのコルクスクリュー様構造固定部５と、遠位骨３を固定する髄内釘８からなる。髄内釘８はコルクスクリュー様構造固定部５との間で挿入されずれることができるスライデイング構造になっている。コルクスクリュー様構造固定部５は図７の様に複数構造であってもよく、図８の様にラグスクリュー９と組み合わされていてもよい。  In the embodiment of the present embodiment for the femoral neck outer fracture, the internal fixation device fixes the corkscrew-like structure fixing portion 5 for fixing the proximal bone 2 and the distal bone 3 as shown in FIG. It consists of an intramedullary nail 8. The intramedullary nail 8 has a sliding structure that can be inserted between the intramedullary nail 8 and the corkscrew-like structure fixing portion 5. The corkscrew-like structure fixing portion 5 may have a plurality of structures as shown in FIG. 7, or may be combined with the lag screw 9 as shown in FIG.

大腿骨頚部外側骨折用の本実施例の形態例では、本内固定具は、図９のように近位骨２を固定するためのコルクスクリュー様構造固定部５と、遠位骨３を固定するプレート１０からなる。プレート１０はコルクスクリュー様構造固定部５との間で挿入されずれることができるスライデイング構造になっている。コルクスクリュー様構造固定部５は複数構造であってもよく、図１０の様にラグスクリュー９と組み合わされていてもよい。  In the embodiment of the present embodiment for the femoral neck lateral fracture, the internal fixing device fixes the corkscrew-like structure fixing portion 5 for fixing the proximal bone 2 and the distal bone 3 as shown in FIG. Plate 10 to be made. The plate 10 has a sliding structure that can be inserted between the plate 10 and the corkscrew-like structure fixing portion 5. The corkscrew-like structure fixing portion 5 may have a plurality of structures, or may be combined with the lag screw 9 as shown in FIG.

舟状骨、中足骨等骨折用の本実施例の形態例では、本内固定具は、図１１のように近位骨２及び遠位骨３を固定するためのコルクスクリュー様構造固定部５とネジ頭１１からなる。スクリューピッチが先端ほど広くなることやスクリューが先細になることで骨折部に圧迫をかけることができてもよい。  In the embodiment of this embodiment for fractures such as scaphoid and metatarsal bone, the present internal fixing tool is a corkscrew-like structure fixing portion for fixing the proximal bone 2 and the distal bone 3 as shown in FIG. 5 and a screw head 11. It may be possible to apply pressure to the fractured part by increasing the screw pitch toward the tip or tapering the screw.

主として医療整形外科分野の大腿骨頸部骨折に用いることができる。  It can be used mainly for femoral neck fractures in the field of medical orthopedics.

１ 骨折
２ 近位骨
３ 遠位骨
４ 本内固定具
５ コルクスクリュー様構造固定部
６ 筒
７ ネジ構造
８ 髄内釘
９ ラグスクリュー
１０ プレート
１１ ネジ頭DESCRIPTION OF SYMBOLS 1 Fracture 2 Proximal bone 3 Distal bone 4 Internal fixing tool 5 Cork screw-like structure fixing part 6 Cylinder 7 Screw structure 8 Intramedullary nail 9 Lag screw 10 Plate 11 Screw head

Claims (1)

大腿骨頸部骨折において、大腿骨頭方向の支持部を強くする方法に関するものである。大腿骨頸部骨折等において、大腿骨頭を固定するコルクスクリュー様構造固定部をもつ内固定具である。本内固定具は、遠位固定部である髄内釘やプレートや筒やネジ頭構造を持っていてもよいし、コルクスクリュー様構造固定部であってもよい。またコルクスクリュー様構造固定部と遠位固定部の間に互いにスライドする構造があってもよい。コルクスクリュー様構造固定部のピッチは先端に行くほど広くしたり、狭くすることや、テーパー部を持つことで骨接合力を変えることができてもよい。大腿骨頸部骨折以外の骨折の骨接合にも用いる。  The present invention relates to a method for strengthening a support portion in the femoral head direction in a femoral neck fracture. An internal fixation device having a corkscrew-like structure fixing portion for fixing a femoral head in a femoral neck fracture or the like. This internal fixture may have an intramedullary nail, a plate, a cylinder, a screw head structure which is a distal fixation part, or may be a corkscrew-like structure fixation part. There may also be a structure that slides between the corkscrew-like structure fixing part and the distal fixing part. The pitch of the corkscrew-like structure fixing portion may be widened or narrowed toward the tip, or the osteosynthesis may be changed by having a tapered portion. Also used for osteosynthesis of fractures other than femoral neck fractures.
JP2016132031A 2016-06-14 2016-06-14 Internal fixator of fracture Pending JP2017221625A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114305639A (en) * 2022-01-07 2022-04-12 洪琦 Replacement device for retaining femoral neck and femoral head

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004524928A (en) * 2001-04-16 2004-08-19 ザ クリーブランド クリニック ファウンデーション Bone fracture adhesion device
JP2012500030A (en) * 2008-08-15 2012-01-05 キネティック スパイン テクノロジーズ インコーポレーテッド Dynamic pedicle screw

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004524928A (en) * 2001-04-16 2004-08-19 ザ クリーブランド クリニック ファウンデーション Bone fracture adhesion device
JP2012500030A (en) * 2008-08-15 2012-01-05 キネティック スパイン テクノロジーズ インコーポレーテッド Dynamic pedicle screw

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114305639A (en) * 2022-01-07 2022-04-12 洪琦 Replacement device for retaining femoral neck and femoral head

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