JPS6337929Y2 - - Google Patents
Info
- Publication number
- JPS6337929Y2 JPS6337929Y2 JP1981056761U JP5676181U JPS6337929Y2 JP S6337929 Y2 JPS6337929 Y2 JP S6337929Y2 JP 1981056761 U JP1981056761 U JP 1981056761U JP 5676181 U JP5676181 U JP 5676181U JP S6337929 Y2 JPS6337929 Y2 JP S6337929Y2
- Authority
- JP
- Japan
- Prior art keywords
- head
- support plate
- head support
- inclination angle
- metal fitting
- 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
Links
- 239000002184 metal Substances 0.000 claims description 20
- 230000007246 mechanism Effects 0.000 claims description 12
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 2
- 238000003325 tomography Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000035936 sexual power Effects 0.000 description 1
Landscapes
- Apparatus For Radiation Diagnosis (AREA)
Description
【考案の詳細な説明】
本考案は、Ｘ線コンピユータ断層撮影装置（以
下「CT装置」という）による頭部撮影時に使用
する頭部固定装置に関するものである。[Detailed Description of the Invention] The present invention relates to a head fixation device used when photographing the head using an X-ray computerized tomography apparatus (hereinafter referred to as a "CT apparatus").
CT装置によつて頭部、頚部の断層撮影を行う
場合、被検体（患者）が動かないように頭部固定
装置を用いて固定している。この頭部固定装置
は、第１図Ａ，Ｂに示されるように、テーブル１
の先端に着脱自在に取付けるための取付金具２と
一体に形成された支持金具３，３′に、頭部受板
傾斜角度調節器４を介して頭部受板５を回転自在
に取付けたものである。 When performing tomography of the head and neck using a CT device, a head fixation device is used to stabilize the subject (patient) so that the subject does not move. This head fixation device is mounted on a table 1 as shown in FIGS. 1A and 1B.
A head support plate 5 is rotatably attached via a head support plate inclination angle adjuster 4 to support metal fittings 3 and 3' that are integrally formed with a mounting bracket 2 for detachably attaching to the tip of the head support plate. It is.
このような頭部固定装置では次のような問題が
ある。 Such head fixation devices have the following problems.
(1) 前記支持金具３，３′の部分が垂直に立つて
いるため患者の肩がこの支持金具３，３′に当
つて傷ついたり、痛めたりすることがある。(1) Since the support fittings 3 and 3' stand vertically, the patient's shoulder may hit the support fittings 3 and 3', causing injury or pain.
(2) 頚部の撮影の際、頭部を体軸方向に移動させ
る必要があるが、前記支持金具３，３′が患者
の肩に当り所定の位置まで移動できず、肩に近
い頚部の撮影が不可能になる場合がある。(2) When photographing the neck, it is necessary to move the head in the axial direction of the body, but the support fittings 3 and 3' hit the patient's shoulders and could not be moved to the specified position, making it difficult to photograph the neck close to the shoulders. may become impossible.
(3) 頭部受板５（頭部）の傾斜の調節は、ラチエ
ツト機構により行つているため、傾斜角度がス
テツプ状（１ステツプ９度）にしか変化するこ
とができない。したがつて、細かな角度調節が
不可能である。(3) Since the inclination of the head support plate 5 (head) is adjusted by a ratchet mechanism, the inclination angle can only be changed in steps (9 degrees per step). Therefore, fine angle adjustment is not possible.
(4) ラチエツトの爪がうまくかかつていない状態
で、頭部受板５を下げた場合、ラチエツトが空
転し、患者の頚部に損傷を与えるおそれがあ
る。(4) If the head support plate 5 is lowered without the ratchet claws being properly engaged, the ratchet may spin idly and cause damage to the patient's neck.
本考案の目的は、前記問題を解消し、安全で無
段階に角度を可変できる頭部固定装置を提供する
ことにある。 An object of the present invention is to solve the above-mentioned problems and to provide a head fixation device that is safe and allows the angle to be varied steplessly.
本考案の他の目的は、操作性の良い頭部受板傾
斜角調節機構を提供することにある。 Another object of the present invention is to provide a head support plate inclination angle adjustment mechanism with good operability.
本考案は、前記目的を達成するためになされた
ものであり、その特徴は、頭部受板は押え金具と
受け金具によりサンドイツチ状に挟まれて固定さ
れ、前記受け金具はその中央部分に支持部材を有
し、該支持部材はブラケツトに回転自在に枢着さ
れ、前記受け金具は頭部受板傾斜角調節ネジ部材
に滑合の状態に結合され、該頭部受板傾斜角調節
用ネジ部材の他端には頭部受板傾斜角ツマミがネ
ジ嵌合機構によつて取付られ、該頭部受板傾斜角
調節ツマミはツマミ受け金具にその上下にベアリ
ングを介在してＥリングにより滑合状態に取付け
られたことにある。 The present invention has been made to achieve the above object, and its characteristics are that the head support plate is fixed by being sandwiched between a holding metal fitting and a receiving metal fitting in a sandwich-like manner, and the said receiving metal fitting is supported at its central portion. the support member is rotatably pivotally attached to the bracket, the receiving metal fitting is coupled to the head support plate inclination angle adjustment screw member in a sliding state, and the head support plate inclination angle adjustment screw member is connected to the head support plate inclination angle adjustment screw member A head support plate inclination angle knob is attached to the other end of the member by a screw fitting mechanism, and the head support plate inclination angle adjustment knob is slid by an E-ring with bearings interposed above and below the knob receiver. It must be installed in the correct condition.
以下、実施例により本考案を詳細に説明する。 Hereinafter, the present invention will be explained in detail with reference to Examples.
第２図は、本考案の頭部固定装置の一実施例の
全体の側面図であり、この頭部固定装置はテーブ
ル１１の先端に取り付けられている。図におい
て、頭部受板傾斜角調節ツマミ１２を回わすと、
頭部受板１３は、矢印方向に傾斜角度が変化し、
操作者の意図する傾斜に頭部を固定できるように
なつている。 FIG. 2 is an overall side view of one embodiment of the head fixing device of the present invention, and this head fixing device is attached to the tip of the table 11. In the figure, when the head support plate inclination angle adjustment knob 12 is turned,
The head support plate 13 has an inclination angle that changes in the direction of the arrow,
The head can be fixed at the tilt intended by the operator.
第３図は、前記ツマミ１２を回わして頭部受板
１３を傾斜させる傾斜角調節機構の一実施例の正
面図、第４図は、この傾斜角調節機構の横断面図
である。 FIG. 3 is a front view of one embodiment of a tilt angle adjustment mechanism for tilting the head support plate 13 by rotating the knob 12, and FIG. 4 is a cross-sectional view of this tilt angle adjustment mechanism.
第３図及び第４図において、頭部受板１３は、
押え金具１５と受け金具１６によりサンドイツチ
状に挾まれ、皿ネジ２８により固定されている。
前記受け金具１６はその中央部分に支持部材１６
Ａ，１６Ｂを有しており、この支持部材１６Ａ，
１６Ｂは、それぞれ固定ピン１７でブラケツト２
３Ａ，２３Ｂに回転自在に枢着されている。即
ち、前記頭部受板１３は固定ピン１７を中心にし
て回転できるように支持される。また、前記受け
金具１６と頭部受板傾斜角調節用ネジ部材１９
は、固定ピン１８によつて滑合の状態に結合され
ており、ネジ部材１９の他端には頭部受板傾斜角
調節ツマミ１２がネジ嵌合機構によつて取付けら
れている。このツマミ１２は、ツマミ受け金具２
１にその上下にスラストベアリング２０Ａ，２０
Ｂを介在してＥリング２２により滑合状態で取付
けられている。また、前記ブラケツト２３Ａ，２
３Ｂをテーブル１４に取付けるための平板２３
は、ブラケツト２３Ａ，２３Ｂ及びこの平板２３
のブラケツト２３Ａ，２３Ｂと反対側に設けられ
たロツド２４Ａ，２４Ｂと一体に形成されてい
る。前記ロツド２４Ａ，２４Ｂには、それぞれ圧
縮バネ２５とロツク用突起部材２６からなるロツ
ク機構が設けられ、テーブル１１の先端部には前
記ロツド２４Ａ，２４Ｂが挿入される穴２９Ａ，
２９Ｂが設けられている。また、前記突起２６を
圧縮バネ２５に抗して押圧するための頭部固定装
置着脱用ボタン２７がテーブル１１の所定位置に
取付けられている。 In FIGS. 3 and 4, the head support plate 13 is
It is held in a sandwich shape between the presser metal fitting 15 and the receiving metal fitting 16, and is fixed with flat head screws 28.
The receiving metal fitting 16 has a supporting member 16 in its center portion.
A, 16B, and these supporting members 16A,
16B are each attached to the bracket 2 with a fixing pin 17.
3A and 23B so as to be rotatable. That is, the head support plate 13 is supported so as to be rotatable around the fixing pin 17. In addition, the receiving metal fitting 16 and the screw member 19 for adjusting the inclination angle of the head receiving plate
are connected in a sliding manner by a fixing pin 18, and a head support plate inclination angle adjustment knob 12 is attached to the other end of the screw member 19 by a screw fitting mechanism. This knob 12 is attached to the knob receiving metal fitting 2.
1, thrust bearings 20A, 20 above and below
It is attached in a sliding state by an E ring 22 with B interposed therebetween. Moreover, the brackets 23A, 2
Flat plate 23 for attaching 3B to table 14
is the brackets 23A, 23B and this flat plate 23.
The brackets 23A, 23B are integrally formed with rods 24A, 24B provided on the opposite side. The rods 24A, 24B are each provided with a locking mechanism consisting of a compression spring 25 and a locking projection member 26, and the tip of the table 11 has holes 29A, into which the rods 24A, 24B are inserted.
29B is provided. Further, a head fixing device attachment/detachment button 27 for pressing the protrusion 26 against the compression spring 25 is attached to a predetermined position on the table 11.
次に、本実施例の頭部固定装置の動作を説明す
る。 Next, the operation of the head fixation device of this embodiment will be explained.
第３図及び第４図において、頭部固定装置のロ
ツド２４Ａ，２４Ｂをテーブル１１の先端に設け
られた穴２９Ａ，２９Ｂに挿入して行くと、ボタ
ン２７の位置で圧縮バネ２５の弾性により突起２
６が突出してボタン２７を押下げてロツクされ、
頭部固定装置がテーブル１１に取付けられる。ま
た、頭部固定装置をテーブル１１から取りはずす
時は、ボタン２７を押圧して突起２６のロツクを
はずし、装置全体を引き出せばよい。 In FIGS. 3 and 4, when the rods 24A and 24B of the head fixation device are inserted into the holes 29A and 29B provided at the tip of the table 11, the elasticity of the compression spring 25 causes a protrusion at the position of the button 27. 2
6 protrudes and is locked by pressing down on button 27.
A head fixation device is attached to table 11. Furthermore, when the head fixing device is removed from the table 11, the button 27 is pressed to unlock the protrusion 26, and the entire device is pulled out.
次に、頭部受板１３の傾斜角度を変化させる時
は、前記ツマミ１２を右方向に回転させると、ネ
ジ１９はツマミ１２の中に入つて行き、固定ピン
１８の位置は、第４図で下方に下がり、頭部受板
１３は固定ピン１７を中心に回転し、P1の位置
に来る。また、ツマミ１２を左方向に回転させる
と、ネジ１９はツマミ１２の外側方向に移動して
出て行き、固定ピン１８の位置は、第４図では上
方に上がり、頭部受板１３はP2の位置に来る。 Next, when changing the inclination angle of the head support plate 13, rotate the knob 12 to the right, the screw 19 will go into the knob 12, and the position of the fixing pin 18 will be changed as shown in FIG. Then, the head receiving plate 13 rotates around the fixing pin 17 and comes to the position P1 . Furthermore, when the knob 12 is rotated to the left, the screw 19 moves outward from the knob 12 and comes out, the position of the fixing pin 18 rises upward in FIG. Come to position 2 .
このように、ツマミ１２を左右に回転させるこ
とにより頭部受板１３の傾斜を任意に変化させる
ことができる。 In this way, by rotating the knob 12 left and right, the inclination of the head support plate 13 can be changed arbitrarily.
以上説明したように、本考案によれば、ネジ機
構を使用したので、頭部受板の角度を無段階で微
細に設定することができ、また、頭部受板側に被
検体の移動を妨害する突起物がないので、被検者
を体軸方向に移動させる自由度を大きくすること
ができる。また、頭部受板は押え金具と受け金具
によりサンドイツチ状に挟まれて固定され、前記
受け金具はその中央部分に支持部材を有し、該支
持部材はブラケツトに回転自在に枢着され、前記
受け金具は頭部受板傾斜角調節ネジ部材に滑合の
状態に結合され、該頭部受板傾斜角調節用ネジ部
材の他端には頭部受板傾斜角ツマミがネジ嵌合機
構によつて取付られ、該頭部受板傾斜角調節ツマ
ミはツマミ受け金具にその上下にベアリングを介
在してＥリングにより滑合状態に取付けられた構
造したので、頭部受板傾斜角の調節操作性を向上
することができる。 As explained above, according to the present invention, since the screw mechanism is used, the angle of the head support plate can be set steplessly and minutely, and the movement of the subject toward the head support plate can be controlled. Since there are no interfering protrusions, the degree of freedom in moving the subject in the body axis direction can be increased. Further, the head support plate is fixed by being sandwiched between the presser metal fitting and the receiving metal fitting in a sandwich-like manner, and the receiving metal fitting has a support member in its center portion, and the support member is rotatably pivoted to the bracket, and the The receiving metal fitting is coupled to the head receiving plate inclination angle adjustment screw member in a sliding state, and the head receiving plate inclination angle knob is connected to the screw fitting mechanism at the other end of the head receiving plate inclination angle adjusting screw member. The head support plate inclination angle adjustment knob is attached to the knob support fitting with bearings interposed above and below it, and is fitted in a sliding state with an E-ring, so that the adjustment of the head support plate inclination angle is easy. can improve sexual performance.
さらに、従来のラチエツト機構を使用したもの
と比較し、安全でコストも安価である。 Furthermore, it is safer and less costly than those using conventional ratchet mechanisms.
第１図Ａ，Ｂは、従来の頭部固定装置の概略構
成を示す斜視図及び側面図、第２図は、本考案の
頭部固定装置一実施例の全体側面図、第３図及び
第４図は、本考案の頭部受板傾斜調節機構の一実
施例の正面図及び横断面図である。
１１……テーブル、１２……頭部受板傾斜角調
節ツマミ、１３……頭部受板、１５……押え金
具、１６……受け金具、１６Ａ，１６Ｂ……支持
部材、１７，１８……固定ピン、１９……ネジ部
材、２０Ａ，２０Ｂ……スラストベアリング、２
１……ツマミ受け金具、２２……Ｅリング、２３
Ａ，２３Ｂ……ブラケツト、２４Ａ，２４Ｂ……
ロツド、２５……圧縮バネ、２６……ロツク用突
起部材、２７……頭部固定装置着脱用ボタン、２
８……皿ネジ、２９Ａ，２９Ｂ……挿入穴。
1A and 1B are a perspective view and a side view showing the schematic structure of a conventional head fixation device, FIG. 2 is an overall side view of an embodiment of the head fixation device of the present invention, and FIGS. FIG. 4 is a front view and a cross-sectional view of an embodiment of the head support plate inclination adjustment mechanism of the present invention. DESCRIPTION OF SYMBOLS 11... Table, 12... Head support plate inclination angle adjustment knob, 13... Head support plate, 15... Holder fitting, 16... Receiving metal fitting, 16A, 16B... Support member, 17, 18... Fixed pin, 19...Screw member, 20A, 20B...Thrust bearing, 2
1...Knob receiver, 22...E ring, 23
A, 23B... Bracket, 24A, 24B...
Rod, 25...Compression spring, 26...Lock protrusion member, 27...Button for attaching/detaching head fixation device, 2
8...Countersunk screw, 29A, 29B...insertion hole.
Claims (1)
ツチ状に挟まれて固定され、前記受け金具はその
中央部分に支持部材を有し、該支持部材はブラケ
ツトに回転自在に枢着され、前記受け金具は頭部
受板傾斜角調節ネジ部材に滑合の状態に結合さ
れ、該頭部受板傾斜角調節用ネジ部材の他端には
頭部受板傾斜角ツマミがネジ嵌合機構によつて取
付られ、該頭部受板傾斜角調節ツマミはツマミ受
け金具にその上下にベアリングを介在してＥリン
グにより滑合状態に取付けられたことを特徴とす
るCT用頭部固定装置。 The head support plate is fixed by being sandwiched between a holding metal fitting and a receiving metal fitting in a sandwich-like manner, and the receiving metal fitting has a support member in its center portion, the supporting member is rotatably pivoted to the bracket, and the receiving metal fitting is coupled to the head support plate inclination angle adjustment screw member in a sliding state, and the head support plate inclination angle knob is connected to the other end of the head support plate inclination angle adjustment screw member by a screw fitting mechanism. 1. A CT head fixing device, wherein the head support plate inclination angle adjustment knob is attached to a knob receiving metal fitting with bearings interposed above and below the head plate in a sliding state with an E ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981056761U JPS6337929Y2 (en) | 1981-04-20 | 1981-04-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981056761U JPS6337929Y2 (en) | 1981-04-20 | 1981-04-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57169307U JPS57169307U (en) | 1982-10-25 |
| JPS6337929Y2 true JPS6337929Y2 (en) | 1988-10-06 |
Family
ID=29853251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981056761U Expired JPS6337929Y2 (en) | 1981-04-20 | 1981-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6337929Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58177106U (en) * | 1982-05-22 | 1983-11-26 | 株式会社京都科学 | head fixator for radiography |
| JPS6058106U (en) * | 1983-09-29 | 1985-04-23 | 工業技術院長 | CT device subject support device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS558702A (en) * | 1978-07-03 | 1980-01-22 | Tokyo Shibaura Electric Co | Fixing device for photographing head portion of computerrtomography device |
-
1981
- 1981-04-20 JP JP1981056761U patent/JPS6337929Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS558702A (en) * | 1978-07-03 | 1980-01-22 | Tokyo Shibaura Electric Co | Fixing device for photographing head portion of computerrtomography device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57169307U (en) | 1982-10-25 |
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