JPH0586307U - Splint in shape memory - Google Patents

Splint in shape memory

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Publication number
JPH0586307U
JPH0586307U JP4312490U JP4312490U JPH0586307U JP H0586307 U JPH0586307 U JP H0586307U JP 4312490 U JP4312490 U JP 4312490U JP 4312490 U JP4312490 U JP 4312490U JP H0586307 U JPH0586307 U JP H0586307U
Authority
JP
Japan
Prior art keywords
shape
splint
shaped
shape memory
fixing operation
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
JP4312490U
Other languages
Japanese (ja)
Inventor
重利 塩田
人士 浜中
秀實 吉増
謙一 冨塚
Original Assignee
株式会社タグチ
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 株式会社タグチ filed Critical 株式会社タグチ
Priority to JP4312490U priority Critical patent/JPH0586307U/en
Publication of JPH0586307U publication Critical patent/JPH0586307U/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A61B17/866—Material or manufacture
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/064—Surgical staples, i.e. penetrating the tissue
    • A61B17/0642—Surgical staples, i.e. penetrating the tissue for bones, e.g. for osteosynthesis or connecting tendon to bone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/064—Surgical staples, i.e. penetrating the tissue
    • A61B2017/0647—Surgical staples, i.e. penetrating the tissue having one single leg, e.g. tacks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/064—Surgical staples, i.e. penetrating the tissue
    • A61B2017/0647—Surgical staples, i.e. penetrating the tissue having one single leg, e.g. tacks
    • A61B2017/0648—Surgical staples, i.e. penetrating the tissue having one single leg, e.g. tacks threaded, e.g. tacks with a screw thread

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Neurology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)

Abstract

(57)【要約】 電子出願以前の出願であるので 要約・選択図及び出願人の識別番号は存在しない。(57) [Summary]   Because it is an application before electronic filing There is no abstract / selection drawing and applicant identification number.

Description

【考案の詳細な説明】 「産業上の利用分野」 本考案は，口腔外科領域における顎骨の手術，骨折の治療に際し，骨の固定 に使用される組織内副子に関するものである。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an intra-tissue splint used for bone fixation in the surgery of the jaw and the treatment of fractures in the field of oral surgery.

「従来の技術」 （１）従来のこの種の医療用の板状の組織内副子は，第４図（Ａ）のようであ
り， 板状の本体と骨への固定に使用するネジを挿入する***を有している。また， 穴の形態を楕円形として，ネジをしめるにしたがい結合された骨の断端を圧迫 接合させ強固に固定される種類もある第４図（Ｂ）。“Prior Art” (1) The conventional medical plate-shaped tissue internal splint of this type is as shown in FIG. 4 (A), and the plate-shaped main body and the screws used for fixing to the bone are used. It has a small hole for insertion. In addition, there is also a type in which the holes are formed in an elliptical shape and the stumps of the combined bones are pressed and joined firmly as the screws are tightened (Fig. 4 (B)).

（２）従来のこの種の医療用の棒状の組織内副子は，第５図のようであり，棒状 の本体を屈曲して，クリップ状になっている。(2) A conventional rod-shaped intramedical splint for medical use of this type is as shown in FIG. 5, and the rod-shaped body is bent into a clip shape.

（３）従来のこの種の医療用の割りピン状の固定装置はなく，第６図のような ネジを使用している。(3) There is no conventional cotter pin type fixing device of this kind, and the screw shown in Fig. 6 is used.

「考案が解決しようとする問題点」 （１）本考案は，従来の板状の副子本体の形が外力なしには変化しないため， 固定操作が不便であり，また，固定操作のために，手術時に補助的な皮膚切開 が必要な場合があるのに対し，本考案は，最終的な形態を副子に予め形状記憶 させ，固定操作時には，操作が容易なように必要に応じて変形させることがで きる。そのため，余分な補助切開は不要となる。また，副子の本体の長さを形 状記憶させておくと，それを軟化し，伸展した状態で副子を骨に固定後，体温 などで加温することにより，骨断端を強固に圧迫接合することが可能である。"Problems to be solved by the device" (1) In the present invention, since the shape of the conventional plate-shaped splint body does not change without external force, the fixing operation is inconvenient and In contrast to the case where an auxiliary skin incision may be necessary during surgery, the present invention causes the splint to store the shape of the final shape in advance, and deforms it as necessary to facilitate the operation during the fixing operation. Can be done. Therefore, no extra auxiliary incision is needed. If the length of the splint body is stored in shape, it is softened, the splint is fixed to the bone in the extended state, and the bone stump is strengthened by heating with body temperature. It is possible to perform pressure bonding.

したがって，副子にある***の形態に工夫をこらす必要はない。 Therefore, it is not necessary to devise the shape of the small holes in the splint.

実際に使用する場合には，まず第１図（Ａ）の状態で形状記憶させ，次に， 第１図（Ｂ）のように牽引して副子を伸展せしめる。これを第１図（Ｃ）のよ うに骨折部に固定したのち，形状を第１図（Ａ）のように回復せしめると第１
図 （Ｄ）のように骨折部は適切に接合可能となる。When actually used, the shape is first memorized in the state of FIG. 1 (A), and then the splint is extended by pulling as shown in FIG. 1 (B). After fixing this to the fractured part as shown in Fig. 1 (C), the shape can be recovered as shown in Fig. 1 (A).
The fractured part can be appropriately joined as shown in FIG.

あるいはまた，第１図（Ａ）の状態で形状記憶した副子を，第１図（Ｅ）の
よう に屈曲して骨折部に固定し，その後，形状を回復せしめると，第１図（Ｆ）の
よう に骨折部を整復できる。Alternatively, if the splint that has undergone shape memory in the state of FIG. 1 (A) is bent and fixed to the fractured part as shown in FIG. 1 (E), and then the shape is restored, the splint of FIG. The fracture can be reduced as shown in).

（２）本考案は，従来の棒状の副子がクリップ状であっても，その材質の特性 よりわずかな弾性力，弾性範囲しか示さないため，強固な固定が得られないの に対し，本考案では，予め十分に閉じた状態で副子の形状を記憶しておき，固 定操作時には，副子を軟化して副子の先端を十分開き，副子を当該部位に挿入 後加温して形状を回復せしめることにより，強固な固定力を得ることができ るものである。(2) In the present invention, even if the conventional rod-shaped splint has a clip shape, it exhibits a small elastic force and elastic range due to the characteristics of its material, so that it cannot be firmly fixed. In the device, the shape of the splint is memorized in a fully closed state in advance, and during the fixing operation, the splint is softened and the tip of the splint is fully opened, and the splint is inserted into the site and heated. A strong fixing force can be obtained by recovering the shape by pressing.

実際に使用する場合には，まず，第２図（Ｂ）の状態で形状記憶させ，次に 第２図（Ａ）のように副子の先端を開き，これを第２図（Ｃ）のように骨折部 に固定したのち，形状を第２図（Ｂ）のように回復せしめると，第２図（Ｄ） のように骨折部の適切な接合が可能となる。 When actually used, the shape is first memorized in the state of FIG. 2 (B), then the tip of the splint is opened as shown in FIG. 2 (A), and this is moved to the state of FIG. 2 (C). After being fixed to the fractured part as described above, if the shape is restored as shown in FIG. 2 (B), the fractured part can be properly joined as shown in FIG. 2 (D).

（３）本考案は，従来のネジ式の固定装置では，固定操作時に回転力を加える ため（ねじれるため），固定対象となる骨片間にゆがみやずれを生ずることが ある。本考案では，固定操作時に回転力は加わらないため，骨片間にゆがみや ずれを生じることもなく，良好な固定を行うことができるものである。(3) In the conventional screw-type fixing device of the present invention, since a rotational force is applied (due to twisting) during the fixing operation, distortion or misalignment may occur between the bone fragments to be fixed. In the present invention, since no rotational force is applied during the fixing operation, good fixation can be achieved without causing distortion or displacement between the bone fragments.

実際の使用に際しては，まず，第３図（Ｂ）の状態で形状記憶させ，これ
を， 第３図（Ａ）のように先端を閉じた状態に変形せしめたものを第３図（Ｃ）の
よ うに板状副子とともに骨折部に固定後，形状を回復せしめると，第３図（Ｄ）
の ように骨折部の良好な適合が得られる。In actual use, first, the shape is memorized in the state of FIG. 3 (B), and this is deformed into a state in which the tip is closed as shown in FIG. 3 (A). As shown in Fig. 3 (D), the shape is restored after fixing to the fractured part with the plate-like splint.
A good fit of the fracture is obtained as in.

また，同様に，まず，第３図（Ｂ）の状態で形状記憶させ，これを，第３図
（Ａ） のように先端を閉じた状態に変形せしめたものを，第３図（Ｅ）のように骨折
部 に固定したのち，形状を回復せしめると，第３図（Ｆ）のように骨折部の良好
な 適合を得ることができる。Similarly, first, the shape is memorized in the state of FIG. 3 (B), and this is deformed to the state in which the tip is closed as shown in FIG. 3 (A). After fixing to the fractured part as shown in Fig. 3, if the shape is restored, a good fit of the fractured part can be obtained as shown in Fig. 3 (F).

【図面の簡単な説明】[Brief description of drawings]

第１図（Ａ）は板状の形状記憶組織内副子を表わす
斜視図である。 第１図（Ｂ）は，第１図（Ａ）の板状の形状記憶組織
内副子を牽引し伸展させた斜 視図である。第１図（Ｃ）は，板状副子を骨折部に固
定した要部正面図，第１図 （Ｄ）は，骨折部に固定した板状副子を形状回復せしめ
たときの要部正面図， 第１図（Ｅ）は，板状副子を骨折部に固定した要部平
面図，第１図（Ｆ）は，骨折 部に固定した板状副子を形状回復せしめたときの要部
平面図である。 第２図（Ａ）は棒状の形状記憶組織内副子を表わす斜
視図である。 第２図（Ｂ）は，第２図（Ａ）の棒状の形状記憶組織
内副子を変形させた斜視図で ある。第２図（Ｃ）は，棒状副子を骨折部に装着した
要部正面図，第２図（Ｄ）は， 骨折部に装着した棒状副子の形状を回復したときの要
部正面図である。 第３図（Ａ）は割りピン型の形状記憶組織内副子を表
わす斜視図である。第３図 （Ｂ）は，第３図（Ａ）の割りピン型の形状記憶組織内
副子の先端を開いた斜視図 である。第３図（Ｃ）は，割りピン型の形状記憶組織
内副子を板状副子とともに 骨折部に固定したときの要部正面図であり，第３図
（Ｄ）は，板状副子とともに 骨折部に固定した割りピン型の形状記憶組織内副子の
形状を回復したときの 要部正面図である。第３図（Ｅ）は，割りピン型の形
状記憶組織内副子を単独で 骨折部に固定したときの要部正面図であり，第３図
（Ｆ）は，単独で固定した割り ピン型の形状記憶組織内副子の形状を回復したときの
要部正面図である。 第４図（Ａ），第４図（Ｂ）は，従来の医療用の板状
の組織内副子の斜視図であり 第５図は，従来の医療用の棒状の組織内副子の斜視図
である。第６図は，従来の ネジの斜視図を示す。FIG. 1 (A) is a perspective view showing a plate-shaped shape memory tissue internal splint. FIG. 1 (B) is a perspective view of the plate-shaped shape memory tissue splint of FIG. 1 (A) pulled and extended. FIG. 1 (C) is a front view of the main part where the plate-like splint is fixed to the fractured part, and FIG. 1 (D) is a front view of the main part when the plate-like splint fixed to the fractured part is allowed to recover its shape. Fig. 1 (E) is a plan view of the main part where the plate-like splint is fixed to the fractured part, and Fig. 1 (F) is the main part when the plate-like splint fixed to the fractured part is recovered. FIG. FIG. 2 (A) is a perspective view showing a rod-shaped shape memory tissue internal splint. FIG. 2 (B) is a perspective view in which the rod-shaped shape memory tissue internal splint of FIG. 2 (A) is deformed. FIG. 2 (C) is a front view of the main part in which a rod-shaped splint is attached to the fractured part, and FIG. 2 (D) is a front view of the main part when the shape of the rod-shaped splint attached to the fractured part is recovered. is there. FIG. 3 (A) is a perspective view showing a split pin type splint in the shape memory tissue. FIG. 3 (B) is a perspective view in which the tip of the split pin type shape memory tissue splint of FIG. 3 (A) is opened. FIG. 3 (C) is a front view of a main part when a split pin type shape memory tissue splint is fixed to a fractured part together with a plate splint, and FIG. 3 (D) is a plate splint. FIG. 7B is a front view of the main part when the shape of the split pin-type shape memory tissue splint fixed to the fractured part is recovered. FIG. 3 (E) is a front view of the main part when a split pin-type shape memory tissue splint is independently fixed to a fractured part, and FIG. 3 (F) is a split pin type fixed separately. FIG. 7 is a front view of the main part when the shape of the splint in the shape memory tissue is recovered. FIGS. 4 (A) and 4 (B) are perspective views of a conventional medical plate-shaped tissue internal splint, and FIG. 5 is a perspective view of a conventional medical rod-shaped tissue internal splint. It is a figure. FIG. 6 shows a perspective view of a conventional screw.

Claims (3)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】 本体は板状であり，ネジあるいはピンを
挿入する数個の***を有し，あ らかじめ本体の長さを形状記憶処理するか，あるいは
本体を屈曲しその形状を 記憶処理しておき，これを冷却することにより軟化せ
しめ，術野への固定操作 を容易ならしめ，固定操作終了後，体温あるいはその
他の手段により加温し， 元の形状に回復せしめることにより，より強固な固定
をし得る板状の形状記憶 組織内副子 第１図（Ａ）。1. The main body is plate-shaped and has several small holes into which screws or pins are inserted, and the length of the main body is preliminarily subjected to shape memory processing, or the main body is bent to memorize the shape. It is treated and softened by cooling it to facilitate the fixing operation to the operative field, and after completion of the fixing operation, it is heated by body temperature or other means to recover it to its original shape. A plate-shaped shape memory tissue splint that can be firmly fixed. Fig. 1 (A). 【請求項２】 本体は棒状であり，あらかじめ本体の長
さを形状記憶処理するか，あるいは 本体を屈曲しその形状を記憶処理しておき，これを冷
却することにより軟化 せしめ，術野への固定操作を容易ならしめ，固定操作
終了後，体温あるいは その他の手段により加温し，元の形状に回復せしめる
ことにより，より強固な 固定をし得る棒状の形状記憶組織内副子 第２図
（Ａ）。2. The body is rod-shaped, and the length of the body is shape-memory processed in advance, or the body is bent and the shape is memorized, and the body is cooled to soften the body, and the body is treated. A rod-like shape memory tissue splint that allows for a firmer fixation by facilitating the fixation operation and, after completion of the fixation operation, by heating with body temperature or other means to restore the original shape. A). 【請求項３】 本体に，把持する頭部と骨内に挿入する
スリットの入った脚部を有し， あらかじめ脚部を開いた状態で形状記憶処理し，これ
を冷却することにより 軟化せしめ，術野への固定操作を容易ならしめ，固定
操作終了後，体温あるいは その他の手段により加温し，元の形状に回復せしめる
ことにより，より強固な 固定力を得るようにした割りピン型の形状記憶組織内
副子第３図（Ａ）。3. The body has a head to be grasped and a leg with a slit to be inserted into the bone, and the leg is preliminarily subjected to shape memory processing in a state of being opened, and is softened by cooling it. The cotter pin shape that facilitates the fixing operation to the operative field, and after the fixing operation is finished, is heated by body temperature or other means to restore the original shape to obtain a stronger fixing force. Figure 3 (A) splint in memory organization.
JP4312490U 1990-04-17 1990-04-17 Splint in shape memory Pending JPH0586307U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4312490U JPH0586307U (en) 1990-04-17 1990-04-17 Splint in shape memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4312490U JPH0586307U (en) 1990-04-17 1990-04-17 Splint in shape memory

Publications (1)

Publication Number Publication Date
JPH0586307U true JPH0586307U (en) 1993-11-22

Family

ID=12655097

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4312490U Pending JPH0586307U (en) 1990-04-17 1990-04-17 Splint in shape memory

Country Status (1)

Country Link
JP (1) JPH0586307U (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59203550A (en) * 1983-04-30 1984-11-17 忽那　龍雄 Bone connecting material
JPS62192152A (en) * 1986-02-11 1987-08-22 ソシエテ・ユ−ロペ−ヌ・ドウ・プロプルジオン Living body affinity holding pin and prosthesis containing the same
JPS6344370A (en) * 1986-08-12 1988-02-25 Toshiba Corp Digital data generating device
JPH01190348A (en) * 1987-12-02 1989-07-31 Synthes Ag Pressure bonding plate for osteopathy

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59203550A (en) * 1983-04-30 1984-11-17 忽那　龍雄 Bone connecting material
JPS62192152A (en) * 1986-02-11 1987-08-22 ソシエテ・ユ−ロペ−ヌ・ドウ・プロプルジオン Living body affinity holding pin and prosthesis containing the same
JPS6344370A (en) * 1986-08-12 1988-02-25 Toshiba Corp Digital data generating device
JPH01190348A (en) * 1987-12-02 1989-07-31 Synthes Ag Pressure bonding plate for osteopathy

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