JPH056968Y2 - - Google Patents
Info
- Publication number
- JPH056968Y2 JPH056968Y2 JP1984158178U JP15817884U JPH056968Y2 JP H056968 Y2 JPH056968 Y2 JP H056968Y2 JP 1984158178 U JP1984158178 U JP 1984158178U JP 15817884 U JP15817884 U JP 15817884U JP H056968 Y2 JPH056968 Y2 JP H056968Y2
- Authority
- JP
- Japan
- Prior art keywords
- head
- pin
- arm
- patient
- body frame
- 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.)
- Expired - Lifetime
Links
- 238000003325 tomography Methods 0.000 claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 7
- 238000001356 surgical procedure Methods 0.000 claims description 3
- 238000002591 computed tomography Methods 0.000 description 7
- 239000003550 marker Substances 0.000 description 6
- 229920000049 Carbon (fiber) Polymers 0.000 description 5
- 239000004917 carbon fiber Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 230000002452 interceptive effect Effects 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 210000003625 skull Anatomy 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 206010018852 Haematoma Diseases 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Landscapes
- Apparatus For Radiation Diagnosis (AREA)
Description
【考案の詳細な説明】
〔考案の技術分野〕
本考案はCTスキヤナを用いた定位脳手術用頭
部固定装置に関する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a head fixation device for stereotactic neurosurgery using a CT scanner.
〔考案の技術的背景〕
CT（computed tomography）スキヤナを用い
た定位脳手術装置はベツト上に仰臥した患者の頭
部をペツト上の頭部固定装置に固定させ、CTス
キヤナにより頭部の輪切り状Ｘ線断層撮影を行つ
て患者即ち標的の位置を計測し、次いで頭部固定
装置に穿刺針支持装置を取付けこの穿刺針の先端
が正しく標的に達するよう針調節機構を上記計測
値に応じた調節量をもつて調節し、これによつて
穿刺針の先端が標的に一致するはずであるがこの
位置決めを再度断層撮影によつて確認してから穿
刺針により脳内の血腫を吸引除去する装置であ
る。[Technical background of the invention] A stereotactic neurosurgical device using a CT (computed tomography) scanner fixes the head of a patient lying supine on a bed to a head fixation device on a pet. The position of the patient, that is, the target, is measured by performing X-ray tomography, and then the puncture needle support device is attached to the head fixation device, and the needle adjustment mechanism is adjusted according to the above measured value so that the tip of the puncture needle correctly reaches the target. By adjusting the volume, the tip of the puncture needle should match the target, but this positioning is confirmed again using tomography, and then the hematoma in the brain is suctioned out using the puncture needle. be.
上記頭部固定装置としては、頭部の周囲を複数
のアクリル製受板によつて押圧する構成のものが
あるが、これはその受板を頭部の皮膚に押当てる
ため頭部が動くことがあつて正確な患部の位置を
計測できず、又穿刺針の挿入位置に誤差を生ず
る。これに代わるものとして尖角なピンを用い、
このピンにより頭部の頭蓋骨を直かに押圧して固
定しその固定の確実化を図つたものがある。 Some of the above-mentioned head fixation devices have a configuration in which the periphery of the head is pressed by multiple acrylic support plates, but this prevents the head from moving because the support plates are pressed against the skin of the head. This makes it impossible to accurately measure the position of the affected area, and also causes errors in the insertion position of the puncture needle. As an alternative to this, use a pointed pin,
Some pins are used to directly press the cranium of the head and fix it to ensure its fixation.
このピン方式の頭部固定装置は、枠状をなす本
体フレームに対し頭部中心方向へ進退する支持棒
を設けると共に、この支持棒と体軸方向へ突出す
るアームを設け、このアームの先端部にピンホル
ダを介してピンを設ける構成としている。 This pin-type head fixation device is provided with a support rod that moves forward and backward in the direction of the center of the head with respect to the frame-shaped main body frame, and an arm that protrudes in the direction of the body axis and the support rod. The configuration is such that a pin is provided through a pin holder.
ところで、前述の断層撮影時には、Ｘ線がアー
ム途中からその先端部にかけて通過するが、上記
従来のものでは、そのＸ線通過路に相当する部分
（アーム、ピンホルダ、ピン）がステンレスによ
り形成されていたため、CTスキヤナによる断層
撮影時にＸ線に対して妨害物となり、画像が不鮮
明となることがある。
By the way, during the above-mentioned tomographic imaging, X-rays pass from the middle of the arm to its tip, but in the conventional device described above, the parts (arm, pin holder, pin) corresponding to the X-ray passage are made of stainless steel. Therefore, it may become an obstruction to X-rays during tomography using a CT scanner, making the image unclear.
本考案は上記の欠点を除去し、CTスキヤナに
よる断層撮影時に頭部固定機構部分がＸ線撮影を
妨害してしまうことを防止できる定位脳手術用頭
部固定装置を提供することを目的とする。
The present invention aims to eliminate the above-mentioned drawbacks and provide a head fixation device for stereotactic neurosurgery that can prevent the head fixation mechanism from interfering with X-ray photography during tomography using a CT scanner. .
本考案は、頭部支持機構の各部にあつてＸ線通
過路に位置するアーム、ピンホルダ及びピンのう
ち、アーム及びピンホルダをカーボンにより形成
し、且つ頭部の頭蓋骨に直かに当接するピンはセ
ラミツクにより形成することを特徴とするもの
で、これによりＸ線撮影妨害をほとんど無くし得
る様にしたものである。
In the present invention, among the arms, pin holders, and pins located in the X-ray passage in each part of the head support mechanism, the arms and pin holders are made of carbon, and the pins that directly contact the skull of the head are made of carbon. It is characterized by being made of ceramic, thereby almost eliminating interference with X-ray photography.
以下本考案の一実施例について図面を参照しな
がら説明する。１は本体フレームで、その周囲４
箇所には第１図に示すようにベツトに仰臥した患
者の頭部を固定する頭部固定装置２が取付けられ
ているが、この頭部固定装置２を詳述する前に、
周辺装置を概略的に説明する。上記本体フレーム
１は第２図に示すように内側が円形で外側が略四
角形の枠状をなしたアルミ製のもので、その下辺
には後頭部を仮支えするアクリル製の頭受板３が
設けられ、また四隅部分には固定装置２取付用の
ロツド固着部４が固着用のねじ５と共に設けられ
ている。また本体フレーム１の上下左右辺には計
測用マーカー６を着脱自在に取付ける取付ピン７
が設けられている。この計測用マーカー６は、そ
の線材６ａが、患部位置計測のための輪切り状Ｘ
線断層撮影時に、その断層面画像に点状断面とな
つて表われ、この点状断面の間隔寸法と患部との
寸法関係によつて患部の位置を計測する。８は穿
刺針支持装置で、これは上述した患部位置計測の
ためのＸ線断層撮影後、計測用マーカー６を取外
した上で本体フレーム１に取付けられるものであ
る。の穿刺針支持装置８は、コ字状の可動枠９を
その両端部に存する摺動部材１０，１０を介し本
体フレーム１に第１図の如くＹ方向に移動調節可
能に取付ける様になつていて、さらに可動枠９は
矢印Ｚ方向への移動調節が可能である。また、可
動枠９と摺動部材１０，１０との連結部分には二
枚重ね状態で一方が周方向（矢印１１方向）に回
動調節可能なリング部材１２，１３が設けられて
いて、そのうち可動枠９は回動可能なリング部材
１２に連結されている。この可動枠９には円弧状
レール部材１４が矢印Ｘ方向に移動調節可能に設
けられていて、これには穿刺針ホルダ１５が矢印
１６方向即ち円弧移動調節可能に設けられてい
る。又、上記リング部材１２，１３の中心部には
中心基準点を構成するマーカー部材１７，１７が
設けられている。この穿刺針支持装置８は、前述
の患部位置計測結果に基づき、各部での移動調節
によつてマーカー部材１７，１７が患部と同一線
上で一致する様に操作されて、穿刺針ホルダ１５
に保持された穿刺針１８（第１図二点鎖線で示
す）の先端が患部に合つた位置で且つ手術上好ま
しい角度で患部に進入する様に設定される。尚、
この設定の折り及び実際に穿刺針１８を患部に進
入させる折りにも確認のためCTスキヤナになる
Ｘ線断層撮影を行なう。
An embodiment of the present invention will be described below with reference to the drawings. 1 is the main body frame, and its surroundings 4
As shown in Fig. 1, a head fixing device 2 is attached to the head fixing device 2 for fixing the head of a patient lying supine on a bed.
Peripheral devices will be schematically explained. As shown in Fig. 2, the main body frame 1 is made of aluminum and has a frame shape with a circular inner side and a substantially square outer side, and an acrylic head support plate 3 is provided on the lower side of the frame to temporarily support the back of the head. Further, rod fixing parts 4 for attaching the fixing device 2 are provided at the four corners together with screws 5 for fixing. Also, on the top, bottom, left and right sides of the main body frame 1, mounting pins 7 for attaching and detaching measurement markers 6 are provided.
is provided. This measurement marker 6 has a wire rod 6a having a round shape X for measuring the position of the affected area.
During line tomography, dotted sections appear in the tomographic image, and the position of the affected area is measured based on the dimensional relationship between the interval of these dotted sections and the affected area. Reference numeral 8 denotes a puncture needle support device, which is attached to the main body frame 1 after the measurement marker 6 is removed after the above-described X-ray tomography for measuring the position of the affected area. The puncture needle support device 8 is configured such that a U-shaped movable frame 9 is attached to the main body frame 1 via sliding members 10, 10 at both ends thereof so as to be movable and adjustable in the Y direction as shown in FIG. Furthermore, the movable frame 9 can be adjusted to move in the direction of arrow Z. In addition, two ring members 12 and 13 are provided at the connecting portion between the movable frame 9 and the sliding members 10 and 10, one of which is rotatable in the circumferential direction (in the direction of arrow 11) in a two-layered state. 9 is connected to a rotatable ring member 12. An arcuate rail member 14 is provided on the movable frame 9 so as to be movable in the direction of arrow X, and a puncture needle holder 15 is provided on this so as to be movable in the direction of arrow 16, that is, in an arc. Also, marker members 17, 17 are provided at the centers of the ring members 12, 13, which constitute center reference points. This puncture needle support device 8 is operated so that the marker members 17, 17 are aligned on the same line as the affected part by adjusting the movement of each part based on the above-mentioned affected part position measurement results, and the puncture needle holder 15
The tip of the puncture needle 18 (shown by the two-dot chain line in FIG. 1) held in the puncture needle 18 is set so that it enters the affected area at a position that matches the affected area and at a surgically favorable angle. still,
X-ray tomography using a CT scanner is performed to confirm this setting and also when the puncture needle 18 is actually introduced into the affected area.
さて前述した頭部固定装置２は、Ｘ線断層撮影
から手術終了まで頭部を固定するものであり、こ
の頭部固定装置２について詳述する。１９はステ
ンレス製のロツドで、これは前記ロツド固着部４
に嵌合されてねじ５止めされている。しかして、
このロツド１９は第２図および第３図から理解さ
れるように本体フレーム１に患者の体軸方向へ突
出するように設けられている。２０はこのロツド
１９先端部のねじ筒１９ａに患者頭部の中心方向
へ進退移動可能に設けられたステンレス製のねじ
から成る支持棒であり、これは回り止め板２１を
一体的に有しており、この回り止め板２１をナツ
ト２１ａによつて締め込むことにより、支持棒２
０を回り止め状態に固定する。２２はアームであ
り、これは支持棒２０の先端部に患者体軸方向へ
突出してその体軸方向へ移動可能に設けられてお
り、そして任意の移動位置でねじ２３の締め込み
により固定される。このアーム２２はカーボン繊
維を接着剤で結束した棒状素材から円柱状に形成
されており、その先端部にはやや径大であるが同
じく短円柱状の取付部２４を形成している。この
取付部２４には患者頭部に臨む部位に嵌着凹部２
４ａを形成している。２５はアーム２２先端部の
取付部２４に嵌着されたピンホルダで、これはカ
ーボン繊維を接着剤で結束した棒状素材から外径
10mmなる丸棒状に形成されており、その先端部側
にはピン保持孔２６を形成し、さらに基端部側に
はアーム２２の取付部２４を共に貫通するピン押
出用孔２７を形成している。２８は丸棒状で且つ
先端が尖つたピンで、これをピンホルダ２５のピ
ン保持孔部２６に着脱可能に嵌着している。この
ピン２８はセラミツクにより形成されている。 Now, the head fixation device 2 described above fixes the head from X-ray tomography to the end of surgery, and this head fixation device 2 will be described in detail. 19 is a stainless steel rod, which is attached to the rod fixing part 4.
is fitted and secured with screw 5. However,
As understood from FIGS. 2 and 3, this rod 19 is provided on the main body frame 1 so as to protrude in the direction of the patient's body axis. Reference numeral 20 denotes a support rod made of a stainless steel screw installed in a threaded cylinder 19a at the tip of the rod 19 so as to be movable toward the center of the patient's head. By tightening the rotation prevention plate 21 with the nut 21a, the support rod 2
0 is fixed in a non-rotating state. Reference numeral 22 denotes an arm, which is provided at the distal end of the support rod 20 to protrude in the axial direction of the patient's body so as to be movable in the axial direction of the patient, and is fixed at an arbitrary moving position by tightening a screw 23. . This arm 22 is formed into a cylindrical shape from a rod-like material made of carbon fibers bound together with an adhesive, and has a similar short cylindrical mounting portion 24, although slightly larger in diameter, at its tip. This mounting part 24 has a fitting recess 2 in a part facing the patient's head.
4a is formed. 25 is a pin holder fitted to the attachment part 24 at the tip of the arm 22, which is made of a rod-shaped material made of carbon fibers bound with adhesive.
It is formed in the shape of a round bar of 10 mm, and has a pin holding hole 26 formed at its distal end, and a pin extrusion hole 27 which passes through the attachment part 24 of the arm 22 at its base end. There is. A pin 28 is round and has a sharp tip, and is removably fitted into the pin holding hole 26 of the pin holder 25. This pin 28 is made of ceramic.
上記構成の頭部固定装着２において、アーム２
２の移動位置を任意に設定して固定し、支持棒２
０の患者頭部中心方向への移動調節によつてピン
２８を患者頭部の頭蓋骨に直かに押圧させ、もつ
て頭部を確実に固定する。 In the head fixation mounting 2 having the above configuration, the arm 2
Set and fix the movement position of support rod 2 arbitrarily, and
By adjusting the movement of the pin 28 toward the center of the patient's head, the pin 28 is pressed directly against the skull of the patient's head, thereby firmly fixing the head.
ここで、本実施例においては、本体フレーム１
に対してロツド１９が体軸方向に突出し、且つア
ーム２２も体軸方向に突出する構成であるからピ
ン２８による頭部固定位置と本体フレーム１とを
体軸方向に話すことができる。従つて、本体フレ
ーム１をＸ線断層撮影領域の外またはＸ線治療領
域の外に位置させるようにしながら頭部も確実に
固定できる。そして、CTスキヤナによるＸ線断
層撮影時においては、そのＸ線はアーム２２途中
部からその先端側の範囲で通過するが、この場合
本実施例によれば、アーム２２、ピンホルダ２５
をＸ線撮影にとつて妨害作用のほとんどないカー
ボン繊維により形成すると共に、ピン２８もこれ
またＸ線断層撮影にとつて妨害作用のほとんどな
いセラミツクにより形成しているので、鮮明な画
像を得ることができる。従つてＸ線断層撮影によ
る患部位置の計測及び穿刺針１８の位置設定を正
しく行ない得ると共に患部での残存血種の有無を
断層撮影により確認しながら手術を進行すること
も可能となる。 Here, in this embodiment, the main body frame 1
On the other hand, since the rod 19 is configured to protrude in the axial direction and the arm 22 also protrudes in the axial direction, the head fixing position by the pin 28 and the body frame 1 can be aligned in the axial direction. Therefore, the head can be securely fixed while the main body frame 1 is positioned outside the X-ray tomography region or the X-ray treatment region. During X-ray tomography using a CT scanner, the X-rays pass from the middle of the arm 22 to the distal end thereof.
The pin 28 is made of carbon fiber, which has almost no interfering effect on X-ray tomography, and the pin 28 is also made of ceramic, which has almost no interfering effect on X-ray tomography, making it possible to obtain clear images. I can do it. Therefore, it is possible to correctly measure the position of the affected area by X-ray tomography and to set the position of the puncture needle 18, and it is also possible to proceed with the surgery while confirming the presence or absence of residual blood in the affected area by tomography.
また、カーボン繊維は強度も高いのでアーム２
２における撓みの問題がなく、頭部に対する固定
を確実ならしめ得る。ちなみにカーボン繊維とス
テンレスとについて対比すると、比強度は前者が
140〜200Kg／mm2に対して後者が20〜32Kg／mm2、以
下同様の順で弾性率は24000〜35000Kg／mm2に対し
て19000Kg／mm2、比弾性率は13600〜19500Kg／mm2
に対して2400Kg／mm2、比重は1.7〜1.8に対して7.9
である。 In addition, carbon fiber has high strength, so arm 2
There is no problem of deflection in 2, and the fixation to the head can be ensured. By the way, when comparing carbon fiber and stainless steel, the former has a higher specific strength.
The latter is 20-32Kg/ mm2 for 140-200Kg/ mm2 , and in the same order, the elastic modulus is 19000Kg/ mm2 for 24000-35000Kg/ mm2 , and the specific modulus is 13600-19500Kg/ mm2.
2400Kg/mm 2 against, specific gravity 7.9 against 1.7-1.8
It is.
尚、ピン２８をアーム２２及びピンホルダ２５
と同様にカーボン製とすることが考えられるが、
ピン２８が直接頭蓋骨に押圧されることからカー
ボン製とするとその先端部が圧潰されやすく、従
つてピンホルダ２５をセラミツクにて形成する本
実施例ではその様な不具合を軽減できる。 Note that the pin 28 is connected to the arm 22 and the pin holder 25.
It is conceivable to make it made of carbon as well, but
Since the pin 28 is directly pressed against the skull, if it is made of carbon, its tip is likely to be crushed. Therefore, in this embodiment in which the pin holder 25 is made of ceramic, such problems can be alleviated.
さらに、アーム２２を丸棒状に形成した本実施
例によれば、Ｘ線の散乱を極力防止できて画像を
一層鮮明化できる。 Furthermore, according to this embodiment in which the arm 22 is formed into a round bar shape, scattering of X-rays can be prevented as much as possible and images can be made even clearer.
本考案は、以上の記述にて明らかな様に、本体
フレームに対してロツドが体軸方向に突出し、且
つアームも体軸方向に突出する構成であるからピ
ンによる頭部固定位置と本体フレームとを体軸方
向に離すことができる。従つて、頭部を固定する
について、本体フレームをＸ線断層撮影領域の外
またはＸ線治療領域の外に位置させて頭部を固定
でき、画像の鮮明化および治療の容易化に寄与で
きる。
As is clear from the above description, the present invention has a configuration in which the rod protrudes in the body axis direction relative to the body frame, and the arm also protrudes in the body axis direction, so that the head fixation position using the pin and the body frame are can be separated along the body axis. Therefore, when fixing the head, the main body frame can be positioned outside the X-ray tomography region or the X-ray treatment region and the head can be fixed, contributing to sharper images and easier treatment.
さらに、アーム及びピンホルダをカーボンによ
り形成すると共に、ピンをセラミツクにて形成し
たので、頭部固定機構によつてＸ線断層撮影が妨
害されることを確実に防止でき、従つてＸ線撮影
による画像を鮮明化できて、患部位置の計測及び
穿刺針の位置設定を容易且つ正しく行ない得、し
かも、アームを丸棒状に形成したので、Ｘ線の散
乱を極力防止できて画像の鮮明化をさらに促進で
き、特に、頭部に圧着されるところのピンをセラ
ミツクによつて形成したので、ピン圧潰の問題を
なくし得る、等の優れた効果を奏する。 Furthermore, since the arm and pin holder are made of carbon, and the pin is made of ceramic, it is possible to reliably prevent X-ray tomography from being obstructed by the head fixation mechanism, and therefore to improve the quality of the images obtained by X-ray photography. This makes it possible to measure the affected area position and set the position of the puncture needle easily and correctly.Furthermore, since the arm is shaped like a round bar, scattering of X-rays can be prevented as much as possible, further promoting image clarity. In particular, since the pin that is crimped onto the head is made of ceramic, it has excellent effects such as eliminating the problem of pin crushing.
図面は本考案の一実施例を示すもので、第１図
は使用状態の側面図、第２図は概略的分解斜視
図、第３図は主要部の側面図、第４図はピン部分
の拡大縦断面図である。
図中、１は本体フレーム、２は頭部固定装置、
６は計測用マーカー、８は穿刺針支持装置、１５
は穿刺針ホルダ、１７はマーカー部材、１９はロ
ツド、２０は支持棒、２２はアーム、２５はピン
ホルダ、２８はピンである。
The drawings show one embodiment of the present invention; Fig. 1 is a side view of the device in use, Fig. 2 is a schematic exploded perspective view, Fig. 3 is a side view of the main part, and Fig. 4 is a diagram of the pin portion. It is an enlarged longitudinal cross-sectional view. In the figure, 1 is the main body frame, 2 is the head fixation device,
6 is a measurement marker, 8 is a puncture needle support device, 15
17 is a puncture needle holder, 17 is a marker member, 19 is a rod, 20 is a support rod, 22 is an arm, 25 is a pin holder, and 28 is a pin.
Claims (1)
切り状Ｘ線断層撮影及び手術のために固定するも
のにおいて、枠状をなす本体フレームと、この本
体フレームに患者の体軸方向に突出するように設
けられた複数のロツドと、各ロツドの先端部に患
者の頭部中心方向に進退移動可能に設けられ任意
の移動位置で固定される支持棒と、各支持棒に患
者の体軸方向へ突出してその方向へ移動可能に設
けられ任意の移動位置で固定されるアームと、各
アームの突出部分に設けられたピンホルダと、各
ピンホルダに嵌着され前記支持棒の頭部中心方向
への移動によつて前記頭部を圧着固定する尖角な
ピンとを具備し、前記各アームをカーボンにより
丸棒状に形成すると共に、前記各ピンホルダをカ
ーボンにより形成し、且つ前記各ピンをセラミツ
クにより形成したことを特徴とする定位脳手術用
頭部固定装置。 A device for fixing the head of a patient lying supine on a bed for cross-section X-ray tomography and surgery, which includes a frame-shaped body frame and a body frame that protrudes in the axial direction of the patient's body. A support rod is provided at the tip of each rod so that it can move forward and backward in the direction of the center of the patient's head and is fixed at any moving position, and each support rod supports the patient's body axis. an arm that protrudes in a direction and is movable in that direction and is fixed at any moving position; a pin holder provided on the protruding portion of each arm; and a pin holder that is fitted into each pin holder and moves in the direction of the center of the head of the support rod. each arm is formed of carbon into a round bar shape, each of the pin holders is formed of carbon, and each of the pins is formed of ceramic. A head fixation device for stereotactic neurosurgery, which is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984158178U JPH056968Y2 (en) | 1984-10-19 | 1984-10-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984158178U JPH056968Y2 (en) | 1984-10-19 | 1984-10-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6173306U JPS6173306U (en) | 1986-05-19 |
| JPH056968Y2 true JPH056968Y2 (en) | 1993-02-23 |
Family
ID=30716161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984158178U Expired - Lifetime JPH056968Y2 (en) | 1984-10-19 | 1984-10-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH056968Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014519859A (en) * | 2011-04-08 | 2014-08-21 | モンテリス メディカル コーポレイション | Head fixation system and method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62270148A (en) * | 1986-05-19 | 1987-11-24 | アラン アンジエロ パテイル | Apparatus for applying surgical treatment to objective area in head bone of patient by utilization of computer tomographic imaging scanner |
| US4991579A (en) * | 1987-11-10 | 1991-02-12 | Allen George S | Method and apparatus for providing related images over time of a portion of the anatomy using fiducial implants |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5240613U (en) * | 1975-09-16 | 1977-03-23 |
-
1984
- 1984-10-19 JP JP1984158178U patent/JPH056968Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5240613U (en) * | 1975-09-16 | 1977-03-23 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014519859A (en) * | 2011-04-08 | 2014-08-21 | モンテリス メディカル コーポレイション | Head fixation system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6173306U (en) | 1986-05-19 |
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