CN102777029A - Magnetic shielding protection body construction method for magnetic navigation system operating room - Google Patents
Magnetic shielding protection body construction method for magnetic navigation system operating room Download PDFInfo
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- CN102777029A CN102777029A CN2012102343558A CN201210234355A CN102777029A CN 102777029 A CN102777029 A CN 102777029A CN 2012102343558 A CN2012102343558 A CN 2012102343558A CN 201210234355 A CN201210234355 A CN 201210234355A CN 102777029 A CN102777029 A CN 102777029A
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Abstract
The invention discloses a magnetic shielding protection body construction method for a magnetic navigation system operating room, which comprises the following steps of: site planning and examination; carrying out alignment to an operating room building, performing building positioning and setting and alignment on a magnetic shielding operating room according to a plane figure, a floor, a top surface, a wall magnetic shielding arrangement diagram and a detailed structure map in the magnetic navigation system operating room; and arranging inner and outer position lines of building retaining walls, X and Y centering axes, a control room, an operating room, equipment room wall position lines, regional axes, induction doors, a hand push door position line, electric slots and pipe laying channel lines of the magnetic navigation system operating room on the floor, wherein the requirements of the precision control are that the length-width error is controlled within 2mm, and the diagonal error is controlled within 4mm; mounting a ground component; mounting the magnetic navigation system; carrying out inspection and acceptance of the magnetic shielding; and the like. According to the operating room magnetic shielding protection body construction method, the health risk generated in the process of working around a magnet is reduced to the greatest degree, accidents are avoided, magnetic leakage is completely eliminated, and preventative measures are taken before the accidents occur.
Description
Technical field
The present invention relates to a kind of magnetic screen preventive works that are applicable to magnetic navigation system operation chamber.
Background technology
The magnetic navigation systems technology is in the utilization of hospital clean operation chamber; Solved the world-class difficult problem that the meticulous intervene operations of high-end complicacy such as coronary heart disease PCI, the survey of electric physiology mark, RF ablation, the implantation of biventricular pacemaker, nerve are got involved, radiation intervention are accurately located and treated; Brought also that operation skill threshold, the operating time simplifying and optimize the operation technique flow process, reduce the clinician significantly shorten, medical worker's null ray radiation, patient more easily, the benefit that improves of operation turnover rate; Therefore the construction of magnetic navigation system clean operating room becomes the standard of weighing hospital's technical equipment and medical level day by day, is included in the construction plan by numerous front three hospital.
The magnetic navigation system contains permanent magnet, and it can produce strong magnetic field all the time, and this magnetic field can't be closed.And if the distance between magnet is far away inadequately, under the effect in this magnetic field, the metal object cognition in the operating room is attracted by magnet.
In addition, this magnetic field brings health risk can for the personnel that are implanted with Medical Instruments in the body.Near all personnel that magnet, work all should take corresponding precautionary measures.When magnetic material (magnet, most of iron and steel etc.) during near magnet, magnetic material induction suction can become big rapidly.When people recognize this kind suction, this suction may be powerful to can't overcoming, magnetic bodies can be dragged to reach a lot of kilograms magnet to suction, thus the personnel that might cause injure or equipment damage.
Be implanted with electronic medical instruments in the body, the personnel like heart pacemaker or implantable cardioverter defibrillator (ICD) should not get into operating room.Some regional magnetic field intensity surpasses 5 Gausses in the operating room, may have influence on above-mentioned instrument.The medical implanting apparatus of other type may contain ferromagnetic material like aneurysm clip, operation seam folder or artificial body part.When near magnet, these instruments also can be sensed powerful suction, thereby may cause personal injury or death.
Summary of the invention
The objective of the invention is to provide a kind of, thoroughly stop magnetic and reveal the magnetic navigation system operation chamber magnetic screen protection body construction of preventing trouble before it happens for the health risk and the accident that prevents that is reduced in to greatest extent when working around the magnet takes place.
The present invention realizes that the technical scheme of above-mentioned purpose is: a kind of magnetic navigation system operation chamber magnetic screen protection body construction, and its innovative point is: step 1, site planning and audit; Magnetic navigation system operation chamber is made up of control room, operating room (OR), canyon; During the planning room; Should be that equipment is reserved abundant installing space according to principle of human engineering, for the healthcare givers reserves comfortable working space, for abundant door clear span and clear height size are reserved in equipment transmission, conveying, maintenance; For guaranteeing not receive magnetic influence, all auxiliary equipment types of using in the magnetic navigation operating room all are necessary for the type that permission is used in the MRI chamber.All monitors are necessary for diamagnetic dull and stereotyped non-CRT monitor that disturbs, and get into for preventing the unauthorized personnel, and the door that gets into operating room all must be provided with door lock and alarming sign; Step 2, structure are checked and are reinforced, during navigating; Each magnetic locator assembly all connects a permanent magnet and carries out various moving, and the heavy 410kg of magnet is after the installation; It can move about 305mm along z axis property; And tiltable ± 15 °, because this dynamic effects that moves and the magneticaction between the magnet, the dynamic load that is produced may surpass the static load of system; Step 3, floor leveling construction is removed the loose techonosphere in ground in the magnetic screen operating room construction area, with the preliminary levelling of high-grade cement mortar, treat that cement mortar screeding layer intensity, humidity meet the requirements after, again with the accurate levelling of self-leveling cement; Step 4; Operating room building unwrapping wire; Carry out building location, the setting unwrapping wire of magnetic screen operating room according to magnetic navigation system operation chamber plan view, ground, end face, metope magnetic screen arrangement diagram, the thin joint structure figure of portion; The position line, X, Y are to axis, control room, operating room, the canyon body of wall position line, regional axis, induction door, the hand push door position line, electric wire casing, pipeline laying channel line inside and outside the ground bullet sets out magnetic navigation system operation chamber building enclosure body of wall; Precision control requires: the length and width ERROR CONTROL is in 2mm, and the diagonal ERROR CONTROL is in 4mm; Step 5, absolute altitude control sign draws survey, according to the floor absolute altitude control line that school, overall contract of construction unit provide, carries out the survey of drawing of magnetic navigation system operation chamber ± 1.000 absolute altitudes control sign; Step 6, ground magnetic shielding steel sheet set type, open flat, the size of combined ground magnetic screen arrangement diagram and magnetic shielding steel sheet; Carry out the composing of magnetic shielding steel sheet; And the figure that draw to set type, according to the composing size of drafting, it is flat on smooth workbench, to carry out opening of magnetic shielding steel sheet; Bullet is established magnetic shielding steel sheet composing installation site line on ground simultaneously, for subsequent installation is carried out technology and material preparation; Step 7, ground magnetic shield steel plate is installed, and at the floor pavement steel plate, after position checking was accurate, with the special-purpose steel nail of magnetic screen fixation steel plate on the concrete structure floor, after the fixation, the magnetic shielding steel sheet screening glass at top cap place, turnover covered the steel nail cap; Step 8; Ground wire casing, catheter laying after magnetic shielding steel sheet installs, clean the plate face; And establish the position line of electric wire casing, catheter laying passage at steel plate face bullet again, check errorless back and lay control room, operating room, the electric wire casing in the trizonal ground of canyon and conduit; Step 9, operating room examination couch base steel plate are installed, and accurately operating room examination couch base steel plate installation site line and absolute altitude are established and checked to bullet, the fixing examination couch base steel plate on operating room ground; Step 10; The High Strength Concrete building floor is built; Inspection ground concealed work: after wire casing, conduit, pre-embedded steel slab, magnetic shielding steel sheet are installed and met design and related specifications, standard-required; On hidden layer, build C30 concrete building floor, and adopt magma machinery troweling technology, carry out accurate press polish plucking; Step 11, the magnetic shield wall,, top location, setting and accurate snap the line, establish the magnetic screen body of wall steel frame position line building on the good concrete ground of maintenance bullet, and draw and measure the concrete top board; Step 12, magnetic screen body of wall steel frame is installed, and magnetic screen body of wall steel frame is installed and is carried out preservative treatment; Step 13; Operating room building unwrapping wire; Carry out building location, the setting unwrapping wire of magnetic screen operating room according to magnetic navigation system operation chamber plan view, ground, end face, metope magnetic screen arrangement diagram, the thin joint structure figure of portion; The position line, X, Y are to axis, control room, operating room, the canyon body of wall position line, regional axis, induction door, the hand push door position line, electric wire casing, pipeline laying channel line inside and outside the ground bullet sets out magnetic navigation system operation chamber building enclosure body of wall; Precision control requires: the length and width ERROR CONTROL is in 2mm, and the diagonal ERROR CONTROL is in 4mm; Step 14, absolute altitude control sign draws survey, according to the floor absolute altitude control line that school, overall contract of construction unit provide, carries out the survey of drawing of magnetic navigation system operation chamber ± 1.000 absolute altitudes control sign; Step 15, ground magnetic shielding steel sheet set type, open flat, the size of combined ground magnetic screen arrangement diagram and magnetic shielding steel sheet; Carry out the composing of magnetic shielding steel sheet; And the figure that draw to set type, according to the composing size of drafting, it is flat on smooth workbench, to carry out opening of magnetic shielding steel sheet; Bullet is established magnetic shielding steel sheet composing installation site line on ground simultaneously, for subsequent installation is carried out technology and material preparation; Step 16, ground magnetic shield steel plate is installed, at the floor pavement steel plate, after position checking is accurate, with the special-purpose steel nail of magnetic screen fixation steel plate on the concrete structure floor.After the fixation, the magnetic shielding steel sheet screening glass at top cap place, turnover covers the steel nail cap; Step 17; Ground wire casing, catheter laying after magnetic shielding steel sheet installs, clean the plate face; And establish the position line of electric wire casing, catheter laying passage at steel plate face bullet again, check errorless back and lay control room, operating room, the electric wire casing in the trizonal ground of canyon and conduit; Step 18, operating room examination couch base steel plate are installed, and accurately operating room examination couch base steel plate installation site line and absolute altitude are established and checked to bullet, the fixing examination couch base steel plate on operating room ground. Step 19; The High Strength Concrete building floor is built; Inspection ground concealed work: after wire casing, conduit, pre-embedded steel slab, magnetic shielding steel sheet are installed and met design and related specifications, standard-required; On hidden layer, build C30 concrete building floor, and adopt the magma machinery troweling technology of one of 10 new technologies of Jiangsu Province's builing industry, carry out accurate press polish plucking; Step 20, the magnetic shield wall,, top location, setting and accurate snap the line, establish the magnetic screen body of wall steel frame position line building on the good concrete ground of maintenance bullet, and draw and measure the concrete top board; Step 21, magnetic screen body of wall steel frame is installed, and magnetic screen body of wall steel frame is installed and is carried out preservative treatment; Step 22, magnetic screen end face steel frame is installed, and magnetic screen end face steel frame is installed and is carried out preservative treatment; Step 23, wall end face magnetic shielding steel sheet set type, open flat, the size of combining wall end face magnetic screen arrangement diagram and magnetic shielding steel sheet; Carry out the composing of magnetic shielding steel sheet, and draw the figure that sets type, according to the composing size of drafting; It is flat on smooth workbench, to carry out opening of magnetic shielding steel sheet; Simultaneously establish magnetic shielding steel sheet composing installation site line, and the steel plate of splitting after flat carries out protective treatment, for subsequent installation is carried out technology and material preparation at wall end face bullet; Step 24, wall end face magnetic shielding steel sheet is installed, and according to the figure that sets type, drafts wall end face magnetic shielding steel sheet welding sequence is installed, and adopts CO2 protection weldering to carry out the steel plate welding.The place that welding machine should be installed in as far as possible that humidity is little, dust is few, wind speed is weak, can the ventilation dedusting; In welding process; Height of welding gun (stem elongation degree) and angle are consistent from start to finish, and the CO2 weldering is more than the heat that manual metal-arc welding produces; Intensity is bigger, therefore need position welding before the weldering: wall top magnetic shielding steel sheet and commissure are carried out preservative treatment; Step 25, gravity flow self-leveling floor is built; Step 26, the floor pavement rubber floor covering; Step 27; The accurate position line of terrestrial components is surveyed and is established; Adopt the locator of special-purpose precision; Utilize axis, examination couch base plate, the swivel plate base plate position line of the XY direction that the ground bullet establishes to carry out the location of terrestrial components such as guide rail, and carry out checking to precision in length and breadth, draw out the installation site line on ground with infrared transit; Step 28; Rubber ground material below the installation terrestrial components, swivel plate and guide rail, removing track; And epoxy resin is painted on the self-leveling cement; Use flat concrete screw that guide rail is fixed on the ground, the rotating base base plate also uses the concrete screw to ground, and this base plate is mainly as the installation surface of rotating base fixture and the guide of holing; Step 29, the magnetic navigation system installs, and carries out the magnetic navigation system according to the technology assembling drawing and installs; Step 30, ground 5 Gausses are warned the line sign, and equipment installs, and carry out 5 Gausses on ground and warn the line sign, and the caution line adopts the eye-catching sign of yellow black, and the tag line location adopts locator and infrared transit to accomplish; Step 31, magnetic screen is checked and accepted.。
Adopt minimum room mask pattern: if there is not magnetosensitive sense equipment near the magnetic navigation system operation chamber; Only need to carry out the design and installation of magnetic shield according to minimum room mask pattern; This shielding can slacken indoor 5 Gausses' magnetic field, guarantees possibly have in these zones the device security of magnet assembly, and this shielding is processed by common low carbon steel plate; Be connected in wall, floor and ceiling, form 5 limit shape boxes.
Adopt mask pattern between the standard room: in adjacent room the place of basic electronic imaging and diagnostic device is arranged, need shield between the use standard room.This is a kind of sheet armor of being processed by 1008 steel silicon steel sheets, is connected in wall, floor and ceiling, forms 6 limit shape boxes.
The present invention has the following advantages: science; Passive magnetic shielding principle science, engineering advanced person, reliable; Cooperate with magnetic navigation operating room ground, body of wall, end face; Can realize the magnetic screen safeguard function of five, six, nine, ten of magnetic navigation system operation chamber three dimensions, satisfy the safety requirements of magnetic navigation system operation chamber magnetic field control.This worker's method is prone to protect with directed magnetic screen, certainly the magnetic screen technology and combines, and realizes more professional, high-precision magnetic screen target.Advanced; 1008 higher steel of utilization magnetic conductivity; For having designed by multiaspects such as ground, metope, end face combinations magnetic navigation system operation chamber, the magnetic screen protection body that has a style of one's own, just as give the magnetic navigation operating room put on one from pin (), health (body of wall) extends to the magnetic screen armor of women's head-ornaments (end face); Isolated to reach between magnetic navigation system operation control room, operating room, the canyon exchanging, satisfied of the demand for security of magnetic navigation operating room magnetic screen with the magnetic of space outerpace.
The lightweight steel construction that magnetic navigation system operation chamber magnetic screen protection body independently is provided with by multi-disc, 1008 steel plate magnetic screens protection plate armour combine; But its barrier propterty, degree of protection application property, the construction value that is realized all reach very high index, have embodied the real-time advanced technology in magnetic navigation system clean operating room building technology field.Novelty, magnetic navigation system operation chamber magnetic screen protection body is formed by unit assembly type magnetic screen is armoring.Corresponding with magnetic navigation system operation room floor, metope, end face, door and window respectively according to the position.The magnetic screen plate armour at each position can both with other functional device harmonious coexistences of clean operating room, form distinctive magnetic screen protection body.The land subsidence formula structure design of magnetic navigation system operation chamber; When facing the situation that the ground structure level is increasingly sophisticated, functional requirement is high; Do not influence the use and the decoration functions land subsidence formula structure design on ground yet; For the installation of magnetic navigation system operation room floor composite armour provides sufficient space resources; Realize on the concrete deck, being provided with electromechanics installation element, leveling layer, ground decoration surface layer, alarming sign, magnetic navigation floor mounted assembly and built-in fittings thereof such as magnetic shield, X-radiation protection body, magnetic navigation equipment cable, electric wire wire casing, conduit reasonable, orderly, well arrangedly and preset, given magnetic navigation system operation room floor rich functions target.Magnetic navigation system operation chamber is provided with light section steel structure magnetic screen protecting wall separately; Coat engineering quantity in the cabinet side in order to reduce magnetic shielding steel sheet, improve the steel plate installation effectiveness, simplify the joint structure difficulty, abandon corner magnetic disclosure risk; Be arranged on steel plate magnetic screen protection body separately on the steel work wall that is separated with operating room building wall space enclosing structure, evaded with the operating room basic equipment the many difficult points that cooperate are installed.Body of wall magnetic screen plate armour has formed building enclosure, basic equipment with other body of wall functional configuration layers and has inlayed and the efficient integrated magnetic navigation operating room body of wall hybrid system of specific function techonosphere (magnetic screen, the lead protection) set of data.Magnetic navigation system operation chamber is provided with light section steel structure magnetic screen protection top helmet separately; Magnetic navigation system operation chamber end face function is concentrated the functional devices such as air-supply arrangement, air exhausting device, operation shadowless lamp, multi-functional tower crane, lighting for medical use, shooting, cigarette sense except that possessing general clean operating room, and end face magnetic screen protection body also need be set.Be employed in concrete top board and structural beams surface the light section steel structure magnetic screen protection top helmet that is separated with the clean operating room ceiling is set, make that the ceiling structure node is more brief, the construction technology complexity is minimized, design function can be fully guaranteed.The locator of employing mechanical level accuracy standard carries out the accurate location of magnetic navigation system terrestrial components
Adopt the high-precision locator of customization, carry out the accurate location of magnetic navigation system terrestrial components, the positional precision accumulated error when preventing aggregate erection reaches the design error requirement, and satisfies assembly the required precision that cooperatively interacts is installed.Economy; The selection good economy performance, the maximum permeability of 1008 steel can reach 5000, and this is enough high for general magnetic screen; Theory and practice proves that all this type material can make shielding factor reach more than 10 fully; This effect can make 5 gaussian line districts be contracted within the ideal range, and 1008 steel of the high magnetic saturation that therefore a large amount of employings are relatively cheap are made magnetic shield, have extraordinary economy.The armoring design of magnetic screen, good economy performance, 1008 steel plate consumptions can reduce more than 20%, practice thrift more than 30% man-hour.The welding procedure good economy performance adopts CO2 protection weldering to carry out the welding of 1008 steel plates, and consumed power is few in the welding process, and welding cost practices thrift 50%～60%.Practicality, the technology logic is succinct, and joint structure is novel, but application property is strong.
The specific embodiment
Magnetic screen (Magnetic Screen or Magnetic Shield) is exactly that ferrimagnet with high saturation contains the magnetic line of force in the specific volume.It both can prevent outside ferromagnetic material to the inhomogeneity influence of magnet internal magnetic field, can cut down the distribution of the outside stray magnetic field of magnetic screen again greatly.
After magnetic shield was installed, the distance of center to 5 gaussian line of this magnet contracted to 4.2m in can be by 9.2m on X, Y axle, then is contracted to 5.8m by 11.6m on the Z axle.The amplitude of contracting reaches about 5m in 5 gaussian lines, is a kind of very effective magnetic field quarantine measures at the indoor magnetic screen protection body that is provided with of magnetic navigation system operation therefore.
The magnetic screen protection body of magnetic navigation system operation chamber can protect the operating room internal magnetic field not disturbed by other extraneous factor, can scatter in the mode ambient of the indoor magnetic field of restriction operation with stray magnetic field again.
The magnetic screen of magnetic navigation system operation chamber operating room, control room, canyon is to adopt the passive magnetic shield technology: promptly at six 1008 steel plates that (or multiaspect) built-in 2.4～3mm is thick such as operating room surroundings wall, ground structure layer and ceiling of magnetic navigation system operation chamber; As magnetic screen protection body techonosphere, form the magnetic shielding space of sealing.
A kind of magnetic navigation system operation chamber magnetic screen protection body construction, step 1, site planning and audit; Magnetic navigation system operation chamber is made up of control room, operating room (OR), canyon; During the planning room; Should be that equipment is reserved abundant installing space according to principle of human engineering, for the healthcare givers reserves comfortable working space, for abundant door clear span and clear height size are reserved in equipment transmission, conveying, maintenance; For guaranteeing not receive magnetic influence, all auxiliary equipment types of using in the magnetic navigation operating room all are necessary for the type that permission is used in the MRI chamber.All monitors are necessary for diamagnetic dull and stereotyped non-CRT monitor that disturbs, and get into for preventing the unauthorized personnel, and the door that gets into operating room all must be provided with door lock and alarming sign; Step 2, structure are checked and are reinforced, during navigating; Each magnetic locator assembly all connects a permanent magnet and carries out various moving, and the heavy 410kg of magnet is after the installation; It can move about 305mm along z axis property; And tiltable ± 15 °, because this dynamic effects that moves and the magneticaction between the magnet, the dynamic load that is produced may surpass the static load of system; Step 3, floor leveling construction is removed the loose techonosphere in ground in the magnetic screen operating room construction area, with the preliminary levelling of high-grade cement mortar, treat that cement mortar screeding layer intensity, humidity meet the requirements after, again with the accurate levelling of self-leveling cement; Step 4; Operating room building unwrapping wire; Carry out building location, the setting unwrapping wire of magnetic screen operating room according to magnetic navigation system operation chamber plan view, ground, end face, metope magnetic screen arrangement diagram, the thin joint structure figure of portion; The position line, X, Y are to axis, control room, operating room, the canyon body of wall position line, regional axis, induction door, the hand push door position line, electric wire casing, pipeline laying channel line inside and outside the ground bullet sets out magnetic navigation system operation chamber building enclosure body of wall; Precision control requires: the length and width ERROR CONTROL is in 2mm, and the diagonal ERROR CONTROL is in 4mm; Step 5, absolute altitude control sign draws survey, according to the floor absolute altitude control line that school, overall contract of construction unit provide, carries out the survey of drawing of magnetic navigation system operation chamber ± 1.000 absolute altitudes control sign; Step 6, ground magnetic shielding steel sheet set type, open flat, the size of combined ground magnetic screen arrangement diagram and magnetic shielding steel sheet; Carry out the composing of magnetic shielding steel sheet; And the figure that draw to set type, according to the composing size of drafting, it is flat on smooth workbench, to carry out opening of magnetic shielding steel sheet; Bullet is established magnetic shielding steel sheet composing installation site line on ground simultaneously, for subsequent installation is carried out technology and material preparation; Step 7, ground magnetic shield steel plate is installed, and at the floor pavement steel plate, after position checking was accurate, with the special-purpose steel nail of magnetic screen fixation steel plate on the concrete structure floor, after the fixation, the magnetic shielding steel sheet screening glass at top cap place, turnover covered the steel nail cap; Step 8; Ground wire casing, catheter laying after magnetic shielding steel sheet installs, clean the plate face; And establish the position line of electric wire casing, catheter laying passage at steel plate face bullet again, check errorless back and lay control room, operating room, the electric wire casing in the trizonal ground of canyon and conduit; Step 9, operating room examination couch base steel plate are installed, and accurately operating room examination couch base steel plate installation site line and absolute altitude are established and checked to bullet, the fixing examination couch base steel plate on operating room ground; Step 10; The High Strength Concrete building floor is built; Inspection ground concealed work: after wire casing, conduit, pre-embedded steel slab, magnetic shielding steel sheet are installed and met design and related specifications, standard-required; On hidden layer, build C30 concrete building floor, and adopt magma machinery troweling technology, carry out accurate press polish plucking; Step 11, the magnetic shield wall,, top location, setting and accurate snap the line, establish the magnetic screen body of wall steel frame position line building on the good concrete ground of maintenance bullet, and draw and measure the concrete top board; Step 12, magnetic screen body of wall steel frame is installed, and magnetic screen body of wall steel frame is installed and is carried out preservative treatment; Step 13; Operating room building unwrapping wire; Carry out building location, the setting unwrapping wire of magnetic screen operating room according to magnetic navigation system operation chamber plan view, ground, end face, metope magnetic screen arrangement diagram, the thin joint structure figure of portion; The position line, X, Y are to axis, control room, operating room, the canyon body of wall position line, regional axis, induction door, the hand push door position line, electric wire casing, pipeline laying channel line inside and outside the ground bullet sets out magnetic navigation system operation chamber building enclosure body of wall; Precision control requires: the length and width ERROR CONTROL is in 2mm, and the diagonal ERROR CONTROL is in 4mm; Step 14, absolute altitude control sign draws survey, according to the floor absolute altitude control line that school, overall contract of construction unit provide, carries out the survey of drawing of magnetic navigation system operation chamber ± 1.000 absolute altitudes control sign; Step 15, ground magnetic shielding steel sheet set type, open flat, the size of combined ground magnetic screen arrangement diagram and magnetic shielding steel sheet; Carry out the composing of magnetic shielding steel sheet; And the figure that draw to set type, according to the composing size of drafting, it is flat on smooth workbench, to carry out opening of magnetic shielding steel sheet; Bullet is established magnetic shielding steel sheet composing installation site line on ground simultaneously, for subsequent installation is carried out technology and material preparation; Step 16, ground magnetic shield steel plate is installed, at the floor pavement steel plate, after position checking is accurate, with the special-purpose steel nail of magnetic screen fixation steel plate on the concrete structure floor.After the fixation, the magnetic shielding steel sheet screening glass at top cap place, turnover covers the steel nail cap; Step 17; Ground wire casing, catheter laying after magnetic shielding steel sheet installs, clean the plate face; And establish the position line of electric wire casing, catheter laying passage at steel plate face bullet again, check errorless back and lay control room, operating room, the electric wire casing in the trizonal ground of canyon and conduit; Step 18, operating room examination couch base steel plate are installed, and accurately operating room examination couch base steel plate installation site line and absolute altitude are established and checked to bullet, the fixing examination couch base steel plate on operating room ground. Step 19; The High Strength Concrete building floor is built; Inspection ground concealed work: after wire casing, conduit, pre-embedded steel slab, magnetic shielding steel sheet are installed and met design and related specifications, standard-required; On hidden layer, build C30 concrete building floor, and adopt the magma machinery troweling technology of one of 10 new technologies of Jiangsu Province's builing industry, carry out accurate press polish plucking; Step 20, the magnetic shield wall,, top location, setting and accurate snap the line, establish the magnetic screen body of wall steel frame position line building on the good concrete ground of maintenance bullet, and draw and measure the concrete top board; Step 21, magnetic screen body of wall steel frame is installed, and magnetic screen body of wall steel frame is installed and is carried out preservative treatment; Step 22, magnetic screen end face steel frame is installed, and magnetic screen end face steel frame is installed and is carried out preservative treatment; Step 23, wall end face magnetic shielding steel sheet set type, open flat, the size of combining wall end face magnetic screen arrangement diagram and magnetic shielding steel sheet; Carry out the composing of magnetic shielding steel sheet, and draw the figure that sets type, according to the composing size of drafting; It is flat on smooth workbench, to carry out opening of magnetic shielding steel sheet; Simultaneously establish magnetic shielding steel sheet composing installation site line, and the steel plate of splitting after flat carries out protective treatment, for subsequent installation is carried out technology and material preparation at wall end face bullet; Step 24, wall end face magnetic shielding steel sheet is installed, and according to the figure that sets type, drafts wall end face magnetic shielding steel sheet welding sequence is installed, and adopts CO2 protection weldering to carry out the steel plate welding.The place that welding machine should be installed in as far as possible that humidity is little, dust is few, wind speed is weak, can the ventilation dedusting; In welding process; Height of welding gun (stem elongation degree) and angle are consistent from start to finish, and the CO2 weldering is more than the heat that manual metal-arc welding produces; Intensity is bigger, therefore need position welding before the weldering: wall top magnetic shielding steel sheet and commissure are carried out preservative treatment; Step 25, gravity flow self-leveling floor is built; Step 26, the floor pavement rubber floor covering; Step 27; The accurate position line of terrestrial components is surveyed and is established; Adopt the locator of special-purpose precision; Utilize axis, examination couch base plate, the swivel plate base plate position line of the XY direction that the ground bullet establishes to carry out the location of terrestrial components such as guide rail, and carry out checking to precision in length and breadth, draw out the installation site line on ground with infrared transit; Step 28; Rubber ground material below the installation terrestrial components, swivel plate and guide rail, removing track; And epoxy resin is painted on the self-leveling cement; Use flat concrete screw that guide rail is fixed on the ground, the rotating base base plate also uses the concrete screw to ground, and this base plate is mainly as the installation surface of rotating base fixture and the guide of holing; Step 29, the magnetic navigation system installs, and carries out the magnetic navigation system according to the technology assembling drawing and installs; Step 30, ground 5 Gausses are warned the line sign, and equipment installs, and carry out 5 Gausses on ground and warn the line sign, and the caution line adopts the eye-catching sign of yellow black, and the tag line location adopts locator and infrared transit to accomplish; Step 31, magnetic screen is checked and accepted.
Adopt minimum room mask pattern: if there is not magnetosensitive sense equipment near the magnetic navigation system operation chamber; Only need to carry out the design and installation of magnetic shield according to minimum room mask pattern; This shielding can slacken indoor 5 Gausses' magnetic field, guarantees possibly have in these zones the device security of magnet assembly, and this shielding is processed by common low carbon steel plate; Be connected in wall, floor and ceiling, form 5 limit shape boxes.
Adopt mask pattern between the standard room: in adjacent room the place of basic electronic imaging and diagnostic device is arranged, need shield between the use standard room.This is a kind of sheet armor of being processed by 1008 steel silicon steel sheets, is connected in wall, floor and ceiling, forms 6 limit shape boxes.
Claims (3)
1. a magnetic navigation system operation chamber magnetic screen protection body construction is characterized in that: step 1, site planning and audit; Magnetic navigation system operation chamber is made up of control room, operating room (OR), canyon; During the planning room; Should be that equipment is reserved abundant installing space according to principle of human engineering, for the healthcare givers reserves comfortable working space, for abundant door clear span and clear height size are reserved in equipment transmission, conveying, maintenance; For guaranteeing not receive magnetic influence, all auxiliary equipment types of using in the magnetic navigation operating room all are necessary for the type that permission is used in the MRI chamber.All monitors are necessary for diamagnetic dull and stereotyped non-CRT monitor that disturbs, and get into for preventing the unauthorized personnel, and the door that gets into operating room all must be provided with door lock and alarming sign; Step 2, structure are checked and are reinforced, during navigating; Each magnetic locator assembly all connects a permanent magnet and carries out various moving, and the heavy 410kg of magnet is after the installation; It can move about 305rmm along z axis property; And tiltable ± 15 °, because this dynamic effects that moves and the magneticaction between the magnet, the dynamic load that is produced may surpass the static load of system; Step 3, floor leveling construction is removed the loose techonosphere in ground in the magnetic screen operating room construction area, with the preliminary levelling of high-grade cement mortar, treat that cement mortar screeding layer intensity, humidity meet the requirements after, again with the accurate levelling of self-leveling cement; Step 4; Operating room building unwrapping wire; Carry out building location, the setting unwrapping wire of magnetic screen operating room according to magnetic navigation system operation chamber plan view, ground, end face, metope magnetic screen arrangement diagram, the thin joint structure figure of portion; The position line, X, Y are to axis, control room, operating room, the canyon body of wall position line, regional axis, induction door, the hand push door position line, electric wire casing, pipeline laying channel line inside and outside the ground bullet sets out magnetic navigation system operation chamber building enclosure body of wall; Precision control requires: the length and width ERROR CONTROL is in 2mm, and the diagonal ERROR CONTROL is in 4mm; Step 5, absolute altitude control sign draws survey, according to the floor absolute altitude control line that school, overall contract of construction unit provide, carries out the survey of drawing of magnetic navigation system operation chamber ± 1.000 absolute altitudes control sign; Step 6, ground magnetic shielding steel sheet set type, open flat, the size of combined ground magnetic screen arrangement diagram and magnetic shielding steel sheet; Carry out the composing of magnetic shielding steel sheet; And the figure that draw to set type, according to the composing size of drafting, it is flat on smooth workbench, to carry out opening of magnetic shielding steel sheet; Bullet is established magnetic shielding steel sheet composing installation site line on ground simultaneously, for subsequent installation is carried out technology and material preparation; Step 7, ground magnetic shield steel plate is installed, and at the floor pavement steel plate, after position checking was accurate, with the special-purpose steel nail of magnetic screen fixation steel plate on the concrete structure floor, after the fixation, the magnetic shielding steel sheet screening glass at top cap place, turnover covered the steel nail cap; Step 8; Ground wire casing, catheter laying after magnetic shielding steel sheet installs, clean the plate face; And establish the position line of electric wire casing, catheter laying passage at steel plate face bullet again, check errorless back and lay control room, operating room, the electric wire casing in the trizonal ground of canyon and conduit; Step 9, operating room examination couch base steel plate are installed, and accurately operating room examination couch base steel plate installation site line and absolute altitude are established and checked to bullet, the fixing examination couch base steel plate on operating room ground; Step 10; The High Strength Concrete building floor is built; Inspection ground concealed work: after wire casing, conduit, pre-embedded steel slab, magnetic shielding steel sheet are installed and met design and related specifications, standard-required; On hidden layer, build C30 concrete building floor, and adopt magma machinery troweling technology, carry out accurate press polish plucking; Step 11, the magnetic shield wall,, top location, setting and accurate snap the line, establish the magnetic screen body of wall steel frame position line building on the good concrete ground of maintenance bullet, and draw and measure the concrete top board; Step 12, magnetic screen body of wall steel frame is installed, and magnetic screen body of wall steel frame is installed and is carried out preservative treatment; Step 13; Operating room building unwrapping wire; Carry out building location, the setting unwrapping wire of magnetic screen operating room according to magnetic navigation system operation chamber plan view, ground, end face, metope magnetic screen arrangement diagram, the thin joint structure figure of portion; The position line, X, Y are to axis, control room, operating room, the canyon body of wall position line, regional axis, induction door, the hand push door position line, electric wire casing, pipeline laying channel line inside and outside the ground bullet sets out magnetic navigation system operation chamber building enclosure body of wall; Precision control requires: the length and width ERROR CONTROL is in 2mm, and the diagonal ERROR CONTROL is in 4mm; Step 14, absolute altitude control sign draws survey, according to the floor absolute altitude control line that school, overall contract of construction unit provide, carries out the survey of drawing of magnetic navigation system operation chamber ± 1.000 absolute altitudes control sign; Step 15, ground magnetic shielding steel sheet set type, open flat, the size of combined ground magnetic screen arrangement diagram and magnetic shielding steel sheet; Carry out the composing of magnetic shielding steel sheet; And the figure that draw to set type, according to the composing size of drafting, it is flat on smooth workbench, to carry out opening of magnetic shielding steel sheet; Bullet is established magnetic shielding steel sheet composing installation site line on ground simultaneously, for subsequent installation is carried out technology and material preparation; Step 16, ground magnetic shield steel plate is installed, at the floor pavement steel plate, after position checking is accurate, with the special-purpose steel nail of magnetic screen fixation steel plate on the concrete structure floor.After the fixation, the magnetic shielding steel sheet screening glass at top cap place, turnover covers the steel nail cap; Step 17; Ground wire casing, catheter laying after magnetic shielding steel sheet installs, clean the plate face; And establish the position line of electric wire casing, catheter laying passage at steel plate face bullet again, check errorless back and lay control room, operating room, the electric wire casing in the trizonal ground of canyon and conduit; Step 18, operating room examination couch base steel plate are installed, and accurately operating room examination couch base steel plate installation site line and absolute altitude are established and checked to bullet, the fixing examination couch base steel plate on operating room ground. Step 19; The High Strength Concrete building floor is built; Inspection ground concealed work: after wire casing, conduit, pre-embedded steel slab, magnetic shielding steel sheet are installed and met design and related specifications, standard-required; On hidden layer, build C30 concrete building floor, and adopt the magma machinery troweling technology of one of 10 new technologies of Jiangsu Province's builing industry, carry out accurate press polish plucking; Step 20, the magnetic shield wall,, top location, setting and accurate snap the line, establish the magnetic screen body of wall steel frame position line building on the good concrete ground of maintenance bullet, and draw and measure the concrete top board; Step 21, magnetic screen body of wall steel frame is installed, and magnetic screen body of wall steel frame is installed and is carried out preservative treatment; Step 22, magnetic screen end face steel frame is installed, and magnetic screen end face steel frame is installed and is carried out preservative treatment; Step 23, wall end face magnetic shielding steel sheet set type, open flat, the size of combining wall end face magnetic screen arrangement diagram and magnetic shielding steel sheet; Carry out the composing of magnetic shielding steel sheet, and draw the figure that sets type, according to the composing size of drafting; It is flat on smooth workbench, to carry out opening of magnetic shielding steel sheet; Simultaneously establish magnetic shielding steel sheet composing installation site line, and the steel plate of splitting after flat carries out protective treatment, for subsequent installation is carried out technology and material preparation at wall end face bullet; Step 24, wall end face magnetic shielding steel sheet is installed, and according to the figure that sets type, drafts wall end face magnetic shielding steel sheet welding sequence is installed, and adopts CO2 protection weldering to carry out the steel plate welding.The place that welding machine should be installed in as far as possible that humidity is little, dust is few, wind speed is weak, can the ventilation dedusting; In welding process; Height of welding gun (stem elongation degree) and angle are consistent from start to finish, and the CO2 weldering is more than the heat that manual metal-arc welding produces; Intensity is bigger, therefore need position welding before the weldering: wall top magnetic shielding steel sheet and commissure are carried out preservative treatment; Step 25, gravity flow self-leveling floor is built; Step 26, the floor pavement rubber floor covering; Step 27; The accurate position line of terrestrial components is surveyed and is established; Adopt the locator of special-purpose precision; Utilize axis, examination couch base plate, the swivel plate base plate position line of the XY direction that the ground bullet establishes to carry out the location of terrestrial components such as guide rail, and carry out checking to precision in length and breadth, draw out the installation site line on ground with infrared transit; Step 28; Rubber ground material below the installation terrestrial components, swivel plate and guide rail, removing track; And epoxy resin is painted on the self-leveling cement; Use flat concrete screw that guide rail is fixed on the ground, the rotating base base plate also uses the concrete screw to ground, and this base plate is mainly as the installation surface of rotating base fixture and the guide of holing; Step 29, the magnetic navigation system installs, and carries out the magnetic navigation system according to the technology assembling drawing and installs; Step 30, ground 5 Gausses are warned the line sign, and equipment installs, and carry out 5 Gausses on ground and warn the line sign, and the caution line adopts the eye-catching sign of yellow black, and the tag line location adopts locator and infrared transit to accomplish; Step 31, magnetic screen is checked and accepted.
2. magnetic navigation system operation chamber magnetic screen protection body construction according to claim 1; It is characterized in that: adopt minimum room mask pattern: if there is not magnetosensitive sense equipment near the magnetic navigation system operation chamber; Only need to carry out the design and installation of magnetic shield according to minimum room mask pattern; This shielding can slacken indoor 5 Gausses' magnetic field, guarantees possibly have in these zones the device security of magnet assembly, and this shielding is processed by common low carbon steel plate; Be connected in wall, floor and ceiling, form 5 limit shape boxes.
3. magnetic navigation system operation chamber magnetic screen protection body construction according to claim 1 is characterized in that: adopt mask pattern between the standard room: in adjacent room the place of basic electronic imaging and diagnostic device is arranged, need shield between the use standard room.This is a kind of sheet armor of being processed by 1008 steel silicon steel sheets, is connected in wall, floor and ceiling, forms 6 limit shape boxes.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964676A (en) * | 2015-07-30 | 2015-10-07 | 赵越刚 | Infrared laser projection pay-off instrument |
| CN105332438A (en) * | 2015-11-30 | 2016-02-17 | 成都市工业设备安装公司 | Welding-type high-performance electromagnetic shielding chamber construction technology |
| CN111255272A (en) * | 2020-01-17 | 2020-06-09 | 广东省建筑装饰工程有限公司 | Modular assembly type nuclear magnetic resonance shielding chamber structure and construction method |
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2012
- 2012-07-09 CN CN2012102343558A patent/CN102777029A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964676A (en) * | 2015-07-30 | 2015-10-07 | 赵越刚 | Infrared laser projection pay-off instrument |
| CN104964676B (en) * | 2015-07-30 | 2018-04-13 | 赵越刚 | Infrared laser light projects laying out instrument |
| CN105332438A (en) * | 2015-11-30 | 2016-02-17 | 成都市工业设备安装公司 | Welding-type high-performance electromagnetic shielding chamber construction technology |
| CN111255272A (en) * | 2020-01-17 | 2020-06-09 | 广东省建筑装饰工程有限公司 | Modular assembly type nuclear magnetic resonance shielding chamber structure and construction method |
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Application publication date: 20121114 |