KR940004404Y1 - Apparatus for surporting head coil of mri or ct - Google Patents
Apparatus for surporting head coil of mri or ct Download PDFInfo
- Publication number
- KR940004404Y1 KR940004404Y1 KR2019890020415U KR890020415U KR940004404Y1 KR 940004404 Y1 KR940004404 Y1 KR 940004404Y1 KR 2019890020415 U KR2019890020415 U KR 2019890020415U KR 890020415 U KR890020415 U KR 890020415U KR 940004404 Y1 KR940004404 Y1 KR 940004404Y1
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- KR
- South Korea
- Prior art keywords
- head coil
- pedestal
- coil
- head
- support
- Prior art date
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/3802—Manufacture or installation of magnet assemblies; Additional hardware for transportation or installation of the magnet assembly or for providing mechanical support to components of the magnet assembly
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/48—NMR imaging systems
- G01R33/4808—Multimodal MR, e.g. MR combined with positron emission tomography [PET], MR combined with ultrasound or MR combined with computed tomography [CT]
- G01R33/4812—MR combined with X-ray or computed tomography [CT]
Abstract
내용 없음.No content.
Description
제1도는 본 고안 받침대 조립체의 구성도.1 is a block diagram of the pedestal assembly of the present invention.
제2도는 본 고안의 분해사시도.2 is an exploded perspective view of the present invention.
제3도는 종래 헤드코일과 슬라이더의 구성도.3 is a block diagram of a conventional head coil and a slider.
제4도는 종래 헤드코일이 베드상에 합재된 상태사시도.4 is a perspective view of a state in which a conventional head coil is laminated on a bed.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 베드 2 : 레일1: bed 2: rail
3 : 헤드코일 4 : 받침대3: head coil 4: pedestal
5 : 받침편 6 : 로드5: base 6: rod
7 : 면 8 : 위치 지정부재7: face 8: positioning member
9 : E링9: E ring
본 고안은 초전도 자기공명 단층촬영 장치의 헤드코일 받침대장치에 관한 것이다.The present invention relates to a head coil pedestal device of a superconducting magnetic resonance tomography device.
특히 복수의 헤드가 받침대를 공유하며 헤드와 받침대의 조립을 정확하게 실시할 수 있게 되어 있는 것이다.In particular, a plurality of heads share the pedestal, and the head and the pedestal can be accurately assembled.
초전도 자기공명 단층촬영장치에서 헤드코일은 공명된 FID신호(Signal)을 받는 일종의 안테나로서 촬영시 환자의 피사부위(예컨데 머리부분)를 헤드코일 중심의 공동부에 밀어 넣게 된다.In the superconducting magnetic resonance tomography apparatus, the head coil is a kind of antenna that receives a resonance FID signal, and pushes the patient's part (for example, the head) into the cavity of the head coil at the time of imaging.
일반적으로 MRI-CT는 피사부위에 강한 자장을 가하여 피사부위 원자핵이 일정한 방향성을 띄게하고 외부에서 전자기파를 가하여 원자핵의 스핀이 일정한 기울기로 늘게한후(여기상태), 원자핵이 안정한 상태(기적상태)로 회복되면서 자유 유도 감쇄번호(FID Signal)를 발생하는 것을 포착하여 영상으로 디스플레이 하는 것이며, MRT-CT를 시스템의 구성면에서 보면, 외부자장은 마그네트에 의하여 가하고, 펄스는 보디 코일과 계조코일(Gradation Coil)이 주며, FID신호는 표면 코일(Surface Coil)이 수신하게 되는데 상기한 헤드코일(Head Coil)은 표면코일의 일종이다.In general, MRI-CT applies a strong magnetic field to the part of the target to make the nucleus of the nucleus have a certain direction, and applies electromagnetic waves from the outside to increase the spin of the nucleus to a certain slope (excitation state). It is to capture and generate the free induction attenuation number (FID Signal) as it recovers, and to display the MRT-CT in terms of the system configuration, the external magnetic field is applied by the magnet, and the pulse is the body coil and the gradation coil (Gradation). Coil), the FID signal is received by the surface coil (Surface Coil), the head coil (Head Coil) is a kind of surface coil.
따라서 FID신호를 포착하기 위한 헤드코일은 피사체의 구성 원소(주로 수소(H)의 원자핵(H＋: Proton)과 Na의 원자 핵을 사용한다)에 따라 바뀌게 되며, 이를 위하여 MRT-CT에서는 헤드코일의 교체가 필요하게 되는 것이다.Therefore, the head coil for capturing the FID signal is changed according to the constituent elements of the subject (mainly, the atomic nucleus (H + : Proton) of hydrogen (H) and the atomic nucleus of Na). Will need to be replaced.
종래의 MRT-CT에서는 제3도 및 제4도에서 인용된 바와같이 헤드코일(21)의 저부에 슬라이더(22)를 접착제로 부착하고 슬라이더(22)에 형성된 홈(22′)을 베드 상(23)의 레일(24)에 결합시킴으로써 헤드코일을 베드상에서 이동시킬 수 있게 구성되어 있으며 사용예를 보면 환자의 머리를 촬영할 경우에는 헤드코일(21)을 마그네트 중심에 이동시켜야 하는데, 이때 헤드코일(21)을 상기 레일을 따라 이동시키게 되어 있는 것이다.In the conventional MRT-CT, as cited in FIGS. 3 and 4, the slider 22 is adhesively attached to the bottom of the head coil 21, and the groove 22 'formed in the slider 22 is formed on the bed ( It is configured to move the head coil on the bed by coupling to the rail 24 of the 23). In the use example, the head coil 21 should be moved to the magnet center when the patient's head is photographed. 21) to be moved along the rail.
그러나 위에서 설명한 바와같은 종래의 헤드코일 받침대장치는 헤드코일에 받침대가 부착되어 있어 받침대는 모든 헤드코일마다 구비해야 하므로 제작이 번거롭고 베드와의 정밀한 부합이 이루어지지 못하고 있는 것이다.However, the conventional head coil pedestal device as described above is a pedestal is attached to the head coil so that the pedestal should be provided for every head coil is cumbersome to manufacture and is not precisely matched with the bed.
본 고안은 상기와 같은 문제점을 개선하기 위한 것으로서 복수의 헤드가 공유할 수 있는 받침대를 구성하며, 이러한 받침대는 헤드의 외주면에 부찹되는 원호면을 보유하며, 받침대 조립체는 3개를 1조로 하여 한개의 로드에 고정하여 구성되고 있으며, 상기한 받침대는 베드상의 봉형 레일상에서 슬라이더되며, 헤드코일 상에는 받침대에 끼워 맞추기 위한 위치지정 부재를 보유함을 특징으로 하는 것이다.The present invention is to improve the problems as described above constitute a pedestal that can be shared by a plurality of heads, such a pedestal has an arcuate surface crushed on the outer peripheral surface of the head, the pedestal assembly is one set of three The pedestal is configured to slide on a rod-shaped rod-shaped rail, and has a positioning member for fitting to the pedestal on the head coil.
본 고안의 초전도 자기공명 단층촬영장치의 헤드코일 받침대장치를 제1도 및 제2도에 의하여 상세하게 설명하면 다음과 같다.The head coil pedestal device of the superconducting magnetic resonance tomography apparatus of the present invention is described in detail with reference to FIGS. 1 and 2 as follows.
헤드코일(3)을 받쳐주고 로드(6)상에서 이동할 수 있도록 한 받침편(5)이 다수개 형성된 받침대(4)와 상기 받침편(5)의 하부에 형성된 안내홈을 베드(1)상의 레일(2)위에 올려놓아 베드(1)상에서 헤드코일(3)이 슬라이딩될 수 있도록 구성하였다.Rails on the bed 1 are provided with a pedestal 4 formed with a plurality of support pieces 5 which support the head coil 3 and move on the rod 6, and guide grooves formed under the support pieces 5. (2) was placed on the head (1) was configured to slide the head coil (3).
그리고, 헤드코일(3)이 접하는 받침편(5)의 면(7)을 헤드코일(3)의 외주와 부합하는 곡면으로 구성하고 받침편(5)을 3개 1조로 로드(6)에 결합되어 슬라이딩할 수 있도록 받침대(4)를 구성하고, 상기 받침대(4)를 한쌍으로 구성하였다.Then, the surface 7 of the support piece 5 in contact with the head coil 3 is composed of a curved surface corresponding to the outer circumference of the head coil 3, and the support pieces 5 are coupled to the rod 6 in one set of three. The pedestal 4 was configured to slide and the pedestal 4 was configured in pairs.
그리고 로드(6)상에서 받침편(5)의 이동을 제한하기 위하여 로드(6)에 E링(9)를 구성하고, 헤드코일(3)에는 지정부재(8)을 구성하여 헤드코일(3)이 위치를 정할 수 있도록 하였다.In order to limit the movement of the support piece 5 on the rod 6, an E-ring 9 is formed on the rod 6, and a designation member 8 is formed on the head coil 3 to form the head coil 3 This location can be determined.
이와같이 구성된 고안의 작용효과를 제1도 및 제2도에 의하여 설명하면 다음과 같다.Referring to the effect of the invention is configured as described in Figures 1 and 2 as follows.
본 고안은 헤드코일(3)이 받침대(4)를 공유하기 때문에 구성이 간결하여 제작이 용이하고, 헤드코일(3)을 교체하더라도 받침대(4)와 레일(2)의 부합이 변동되지 아니하므로 언제든지 최상의 조립상태를 유지하여 헤드코일(3)의 원활한 이동이 보장되는 것이다.In the present invention, since the head coil 3 shares the pedestal 4, the configuration is simple and easy to manufacture, and even if the head coil 3 is replaced, the matching between the pedestal 4 and the rail 2 does not change. Maintaining the best assembly state at any time ensures the smooth movement of the head coil (3).
또한 받침대(4)는 받침편(5) 3개를 로드(6)상에 관설하였기 때문에 받침편(5)은 개별적으로 헤드코일(3)과 레일(2)에 적용될 수 있어 원활한 슬라이딩 동작이 유지되면서 그 취급이 간편해지며, 받침편(5)은 헤드코일(3)의 외주면이 접하는 면(7)이 곡면으로 구성되어 있어 헤드코일(3)과의 결합이 안정되는 것이고, 헤드코일(3)은 주면에 위치 지정부재(8)가 구비되어 있어 헤드코일의 교체시에 정확한 위치에 안착될 수가 있는 것이다.In addition, since the pedestal 4 has three support pieces 5 installed on the rod 6, the support pieces 5 can be individually applied to the head coil 3 and the rail 2, so that smooth sliding operation is maintained. While the handling is simple, the support piece 5 is composed of a curved surface 7 is in contact with the outer circumferential surface of the head coil 3, so that the coupling with the head coil 3 is stabilized, the head coil (3) The positioning member 8 is provided on the main surface so that it can be seated at the correct position when the head coil is replaced.
상기와 같이 본 고안은 받침대가 분리되어 있어 그 제작이 간편하고 헤드코일의 교체가 용이하며 헤드코일과 받침대가 안정되게 결합되어 단층촬영의 정밀도를 높여주는 효과가 있는 것이다.As described above, the present invention has the effect of improving the accuracy of tomography by separating the pedestal, making it easy to manufacture, easy replacement of the head coil, and stable coupling of the head coil and the pedestal.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890020415U KR940004404Y1 (en) | 1989-12-29 | 1989-12-29 | Apparatus for surporting head coil of mri or ct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890020415U KR940004404Y1 (en) | 1989-12-29 | 1989-12-29 | Apparatus for surporting head coil of mri or ct |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR910010838U KR910010838U (en) | 1991-07-29 |
| KR940004404Y1 true KR940004404Y1 (en) | 1994-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019890020415U KR940004404Y1 (en) | 1989-12-29 | 1989-12-29 | Apparatus for surporting head coil of mri or ct |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR940004404Y1 (en) |
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1989
- 1989-12-29 KR KR2019890020415U patent/KR940004404Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR910010838U (en) | 1991-07-29 |
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