CN104254296A - Head fixation system and method - Google Patents
Head fixation system and method Download PDFInfo
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- CN104254296A CN104254296A CN201280028371.XA CN201280028371A CN104254296A CN 104254296 A CN104254296 A CN 104254296A CN 201280028371 A CN201280028371 A CN 201280028371A CN 104254296 A CN104254296 A CN 104254296A
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- head
- annular groove
- coil
- retainer ring
- fixed
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
- A61B90/11—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis with guides for needles or instruments, e.g. arcuate slides or ball joints
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
- A61B90/14—Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1703—Guides or aligning means for drills, mills, pins or wires using imaging means, e.g. by X-rays
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1707—Guides or aligning means for drills, mills, pins or wires using electromagnetic effects, e.g. with magnet and external sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B90/37—Surgical systems with images on a monitor during operation
- A61B2090/374—NMR or MRI
Abstract
A head fixation system comprises a platform, a fixation ring rotatably coupled to a ring mount extending from an upper surface of the platform, wherein the fixation ring includes a plurality of slots extending around a circumference thereof, a head support structured for insertion into a first one of the slots in the fixation ring, a first fixation post having a first fixation pin for engagement with a patient's skull, wherein the first fixation post is structured for insertion into a second one of the slots in the fixation ring, a second fixation post having a second fixation pin for engagement with the patient's skull, wherein the second fixation post is structured for insertion into a third one of the slots in the fixation ring, and an MRI coil including a top coil member and a bottom coil member removably mounted to the platform, wherein the MRI coil is rotatable relative to and independent of the fixation ring.
Description
Technical field
The present invention relates to surgical work platform.More specifically, the present invention relates to and be convenient to operating theater instruments and observe the head fixed system aimed at patient of apparatus and using method thereof.
Background technology
In the U.S., 200,000 patient is probably had to be diagnosed as cerebroma every year.Probably have 17 in these cerebromas, 000 example is " optimum ", this means that these tumor mass canceration can not occur.But in these cerebromas, other general 183,000 examples are " pernicious " (that is, carcinous), this means that they can cause or cause death.The cancerous brain tumor of about 10% is " constitutional " tumor, this means that tumor comes from brain.Primary tumor usually by sharply grow and replace or alternative normal cerebral tissue, the cerebral tissue with mutant DNA forms.Modal primary tumor is considered to the glioma of the cancer indicating brain neuroblastoma glial cell.In most cases, primary tumor occurs with monolithic (single masses) form.But often, these monolithics may be huge and irregular leafy (multi-lobed) shape, and/or penetrate in surrouding brain tissue.Primary tumor cannot be diagnosed usually, until patient perceptions is to the symptom of such as headache, habit change (altered behavior) or perceptual disturbance etc. and so on.But when by the time symptom occurs, tumor may be very large and have aggressive.
The method of the carcinous cerebral tumor of well-known treatment is operation.Particularly, operation comprises craniotomy (craniotomy) (that is, removing a part of skull), dissects and all or part of tumor resection.The object of operation comprises the number removing or reduce malignant cell active in brain, and reduces because of the pain caused by the effect of the tumor in adjacent brain structures or functional disorder.But in itself, the invasive of operation is large and risk is high.In addition, for some tumor, just part is effective usually in operation.In other tumor, operation itself may be also infeasible, it may emit the risk of injured patient, can not stand by patient and/or huge cost and rehabilitation may be comprised.
Another method for the treatment of the carcinous cerebral tumor is as everyone knows stereoscopic localized ejected wave operation (SRS).Particularly, SRS is such Therapeutic Method, even if multiple crossing beams of ejected wave point to tumor, the cross point that these are restrainted receives the ejected wave of lethal dose, keeps the tissue in the path of arbitrary bundle to be without prejudice simultaneously.SRS is non-invasive and performs usually used as an outpatient operation.But, after the several months after the treatment, usually can not confirm that tumor has been killed or has been neutralized.In addition, when the ejected wave of high dose may be needed to kill tumor, such as, when there is multiple or recurrent tumor, for patients, usually just reached " secure threshold " before killing whole tumor, here, the ejected wave crossing volume is exactly worthless.
In recent years, occurred passing through the method that " heating " (also can be called as overheated or thermotherapy) treats tumor.Particularly, as everyone knows, during higher than 57 DEG C, by being called as the process of coagulation necrosis or amputation, all living tissues almost can by immediately and irretrievably damage or kill.Malignant tumor, due to the DNA of its high vascularization (vascularization) and variation, is more vulnerable to than normal structure the infringement that heating causes.The various energy can be used, as laser, microwave, radio frequency, electricity and ultrasound source.According to application and technology, thermal source can be in external (that is, health is outside), tissue outer (that is, tumor is outside) or tissue (that is, inside tumor).
In tissue, thermotherapy (ITT) is designed to heat and from the process of tumors destroyed in tumor.The advantage of such treatment is that energy is applied directly to tumor and without the normal structure of surrounding.Another advantage of such treatment is that energy deposition more likely runs through whole tumor and extends.
An exemplary ITT process starts from and is inserted in tumor by optical fiber, and wherein, this tumor has the direction roughly rectangular with the length of fiber, edge at its " insertion " end and changes nyctitropic element to make the laser of external source.Therefore the energy of laser extends to the tissue around end or tip and affects heating.Being limited to the intrafascicular guide energy of relatively little angle, make when fiber rotates, bundle also can rotate the heating of the different piece of the tumor affecting fiber peripheral diverse location place around the axis of fiber.Therefore, fiber can vertically move and rotate, and to affect the heating of the tumor on all volumes of tumor, and when not producing obvious impact to surrounding tissue, tumor is heated to the temperature of expectation.
Except possessing the surgeon of patient anatomical and knub position knowledge, the fiber used in ITT process also can control by through less guidance or the surgeon not through instructing or operate.Therefore, surgeon is difficult to affect the controlled heating whole tumor being heated to aspiration level and also making the infringement of surrounding tissue minimize simultaneously.
As everyone knows, magnetic force resonance imaging system can be used to determine the position of tumor and to want other cut infringements.Although these imaging systems assisted surgery doctor determine the position of wanting cut tumor, once the position of tumor is drawn out for surgeon, the use of imaging system will stop.Particularly, former excision step needs to remove patient before starting a treatment from imaging system.But the Partial Resection of the movement of patient and some tissues or solidify, obviously can change the position of wanting cut tumor.As a result, any probability that controlled accuracy is provided in excision process is eliminated.
As everyone knows, magnetic force resonance imaging system can be used to the temperature being determined image inner tissue by amendment imaging sequence, and determines that temperature over time.
U.S. Patent No. 4,914,608 (LeBiahan) that April 3 nineteen ninety is announced, that transfer U.S. sanitary and human resources service department discloses a kind of method determining tissue temperature.
U.S. Patent No. 5 that on February 8th, 1994 is announced, that transfer U.S. sanitary and human resources service department, 284,144 (Delannoy) disclose a kind of device for cancer thermotherapy (hyperthermia treatment), and wherein external non invasive heating system is arranged in the coil of magnetic force resonance imaging system.The disclosure is academic attitude, and relates to the first test relevant to the feasibility that the MRI of temperature measures and external heat system.The open of this patent does not cause commercially feasible thermal therapy system.
Transfer the U.S. Patent No. 5 of General Electric Co. Limited (General Electric), 368,031 and 5,291,890 relate to MRI controlled heat system, wherein heat point source produces predetermined heat distribution, is heated to obtain heat affected zone entirety, and this heat distribution is then monitored consistent with the heat distribution of expectation to guarantee actual heat distribution.Configuration by patent protection does not still cause commercially feasible thermotherapy surgery systems.
On June 9th, 1987 bulletin, the U.S. Patent No. 4,671,254 (Fair) that transfers Memorial Hospital for Cancer and Allied Diseases discloses a kind of tumor and to experience a shock the method for non-operative treatment tumor of ripple.Such treatment does not comprise monitoring and controls the monitoring system of shock wave effect.
On October 20th, 1998 is announced, still unaliened U.S. Patent No. 5,823,941 (Shaunnessey) discloses a kind of endoscope being designed to the special amendment supporting optical fiber.This fibre optical transmission luminous energy and can be moved longitudinally through the horizontally extending well section and can along its axis axial-rotation with guiding energy.This equipment is used for tumor resection, and energy is configured to the evaporation being enough to the tumor affected will be cut.Gas formed in this process is used suction to discharge by endoscope.Tumor image obtained by MRI, is used to programming in operation process and wants the mobile approach of removed optical fiber after it.Again, do not feed back in the process controlling optical fiber movement, the preliminary analysis and this operation places one's entire reliance upon.This configuration does not realize business or success medically yet.
(Lennox) discloses a kind of at the equipment of utilization from the optical energy irradiation tumor of optical fiber U.S. Patent No. 5,454,807 that October 3 nineteen ninety-five is announced, that transfer Boston Scientific Corporation.Conduit in optical fiber provides liquid coolant to apply surface cool and prevent damaged surfaces while allowing to apply to darker tissue the energy increased.Again, this configuration does not provide the feedback control of heats.
United States Patent (USP) 5,785,704 (Lennox) that on July 28th, 1996 is announced, that transfer MRC System GmbH also discloses a kind of laser beam and lens of using to irradiate the customized configuration of the cerebral tumor.Particularly, this configuration uses high-speed pulse laser can realize photospallation (photo-disruption) effect, but and the method for the feedback control of unexposed energy.
The people such as Kahn are at Journal of Computer Assisted Tomography18 (4): in 519-532, July/August1994; The people such as Kahn at Journal of Magnetic Resonance Imaging8:160-164, in 1998; And the people such as Vogl is at Radiology209:381-385,1998 all disclose the method by optical fiber, the heat energy of laser being applied to tumor, during applying heat energy, wherein use MRI to monitor the temperature of tumor periphery.McNichols, the people such as RJ are at Lasers in Surgery and Medicine, 34:48-55,2005, title be disclose in the article of " MR Thermometry-Based Feedback Control of LITT at980nm " by MRI feedback monitoring configuration energy hole.In addition, disclose a kind of cooling system for cooling probe end place tissue in the article of Vogl, this cooling system carries out business by the Somatex of Berlin, Germany to be provided.This system is formed containing pipe in optical fiber by installation kit within the outer tube.Liquid coolant is between two pipes and form continuous print stream in interior pipe.
Although ITT in some applications efficiency is very high, because ITT can not by energy specially and accurately to concentrate in tumor to avoid causing damage to the normal cerebral tissue of surrounding, be restricted so treat the cerebral tumor with ITT.In fact, because the shape height of many cerebral tumors is irregular, the problems referred to above become complicated.
Laser focusing interstitial thermotherapy (f-LITT) improves based on next bulking property of the technique for hyperthermia of laser.Especially, f-LITT can be controlled accurately by the deposition of heat energy, thus primary cellular defect is controlled in the tumor mass of almost any size and shape by doctor specially.But these needs can make doctor's accurately immobilized patients head position and avoid producing with track guiding part instrument the equipment disturbed simultaneously, wherein this locus guiding part instrument is commonly used to guide fever therapy probe to enter in tumor mass.
Therefore, up to now, there is following still unsolved demand, namely foundation can accurately immobilized patients head position, can both the unblocked head fixing device arriving the inlet point of patients head to make to be positioned at where regardless of inlet point.This head fixing device should preferably independently can rotate relative to the MRI coil around patients head.In addition, this head fixed system should preferably can be combined with the customizable MRI coil with two or more replaceable coiler part, to adapt to various trajectory and the inlet point to patients head.
Summary of the invention
The present invention solves the problems referred to above by providing head fixed system, and this head fixed system comprises platform; Retainer ring, it is rotatably coupled to ring bearing, and this ring bearing extends from the upper surface of this platform, and wherein this retainer ring comprises multiple grooves of the circumferential extension along this retainer ring; Head support, it is constructed to be inserted in first groove in the multiple grooves in this retainer ring; First fixed leg, it has the first steady pin engaged with patient's skull, and wherein this first fixed leg is constructed to be inserted in second groove in the multiple grooves in retainer ring; Second fixed leg, it has the second steady pin engaged with patient's skull, and wherein this second fixed leg is constructed to be inserted in the 3rd groove in the multiple grooves in retainer ring; And MRI coil, it bottom coil component comprising top winding component and be installed to platform movably, wherein this MRI coil can relative to the rotation of this retainer ring and independent of this retainer ring.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of the illustrative trace guiding piece that can be combined with head fixed system of the present invention.
Fig. 2 shows the first step of plan process, and wherein MRI depicts the identification of the tumor in patient's brain.
Fig. 3 shows the second step of plan process, which depict the visual display produced by the planning software of the knub position identified in display patients head and Fig. 2.
Fig. 4 A-D shows the third step of plan process, is wherein placed on by virtual locus guiding part above inlet point that user selectes.
Fig. 5 A-D shows the 4th step of plan process, wherein regulates virtual locus guiding part to set up the track expected.
Fig. 6 A-D shows the 5th step of plan process, and wherein in virtual head fixed system, display has the patients head of locus guiding part.
Fig. 7 A is the axonometric chart of the exemplary embodiment according to head system of the present invention.
Fig. 7 B is the axonometric chart of the exemplary embodiment of the head fixed system comprising head fixing device, MRI coil and transfer bed.
Fig. 7 C is the axonometric chart of the MRI coil that can be combined with head fixing device of the present invention.
Fig. 8 A-8D shows the head fixing device being operationally coupled to patients head.
Fig. 9-13 shows the head fixed system of Fig. 7 A-7C used in operation process.
Detailed description of the invention
Generally speaking, present invention resides in preparation and perform in the operation process needing track to aim at, for carrying out orientation to patients head and making its fixing method and system.More specifically, the present invention includes adjustable head fixed system, it can make surgeon almost select any inlet point on patients head (and therefore, any track), and when not with patients head around MRI coil produce the risk disturbed attaching suitable locus guiding part.Although with the cerebral tumor and cerebral surgery operation as a reference, it will be understood by those skilled in the art that system and a method according to the invention designed to be used in any operation needing head fixing.
Before detailed description head fixed system, the exemplary embodiment that can be used in the locus guiding part in operation process together with head fixed system will be discussed.Also several optionally " plan " steps of preparing for this process will be discussed.
Fig. 1 is the axonometric chart of an exemplary embodiment of locus guiding part 10, and this locus guiding part 10 generally includes multiple legs 12 of substrate 11, the skull that can be connected to patient or other body parts and the multiple particularly for optical or photographic supporting legs 14 suitable with leg 12 quantity.As shown in Figure 1, locus guiding part 10 can be oriented as needs the instrument of aligning or apparatus to define trajectory T.These instruments or device can include but not limited to probe, conduit, biopsy needle, brill etc.
The substrate 11 of locus guiding part 10 comprises the top folder 16 and end folder 18 that are hingedly coupled by hinge means 19, and this hinge means 19 can comprise and extends, is constructed to and presss from both sides the end of from from top folder 16 the first hinge fraction 20 that 18 the second hinge fractions 22 extended coordinate.First hinge fraction 20 and the second hinge fraction 22 can be coupled via any suitable connecting device (such as, pin 24 or similar connection device).In addition, after track is determined, folder lock 25 can be utilized top folder 16 and end folder 18 to be locked together in closed position.
Top folder 16 and end folder 18 comprise opening respectively, and opening is constructed to allow globe joint movable member 26 removable and is rotatably seated in top folder 16 and the end presss from both sides between 18.Globe joint movable member 26 can comprise adapter and hold component 28 and extend past the central housing cavity (not shown in figure 1) of adapter accommodation component 28 and globe joint movable member 26.The adapter of globe joint movable member 26 holds component 28 and can be constructed to hold astrosphere adapter 30, then this astrosphere adapter 30 can be constructed to hold and connect various instrument.
As shown in Figure 1, astrosphere adapter 30 through globe joint movable member 26 from top, and comprises tubular portion 32 and is constructed to hold with the adapter of globe joint movable member 26 coupling part 34 that component 28 matches.First clamp device 36 can be coupled to adapter and hold component 28, first clamp device 36 for after inserting globe joint movable member 26 at astrosphere adapter 30, and astrosphere adapter 30 is fixed to globe joint movable member 26.Especially, the first clamp device 36 can be any suitable clamp device, includes but not limited to major part screw etc.After adapter astrosphere adapter 30 being inserted into completely globe joint movable member 26 holds component 28, major part screw can be tightened to be locked in position by astrosphere adapter 30.Afterwards, user is by unclamping major part screw simply and slip adapter 30 to hold in component 28 from adapter and removes astrosphere adapter 30.
Astrosphere adapter 30 can comprise the tube chamber 38 extending past tubular portion 32 and coupling part 34, be constructed to hold operation tool.The diameter of the tube chamber in various astrosphere adapter could be designed and be configured to probe and/or the apparatus that will hold size with this tube chamber changes.In addition, astrosphere adapter 30 can comprise the second clamp device 40, second clamp device 40 for when instrument is once be disposed in tube chamber 38, is just fixed in place by this instrument.To understand as those skilled in the art, the second clamp device 40 is similar with aforementioned first clamp device 36.
As shown in Figure 1, each particularly for optical or photographic supporting leg 14 can comprise globe joint end 42 and hinged end 43.The length of each supporting leg 14 can regulate, and after track is determined, supporting leg is locked in the length place of expectation by available supporting leg cam lock 44.
In addition, as shown in Figure 1, locus guiding part 10 optionally comprises netted assembly 45, and netted assembly 45 is designed to be placed on by locus guiding part 10 in the process on patient, assists leg 12 to make it possess suitable gap and orientation.
In order to determine that locus guiding part 10 is placed on patient and the desired trajectory (that is, the length/orientation of supporting leg and the orientation of globe joint movable member) of guiding piece suitably, some plan step can be performed.Now use special software program to perform exemplary will be described but non-limiting plan step.
In the first plan step shown in Fig. 2, carry out various MRI scanning and uploaded in planning software.Then, in the second plan step, determined the inlet point expected by surgeon.As shown in figs. 3 a-3d, can show patients head's to planning software design and the description of tumor 300 of patients head inside.Also show various possible inlet point 310.Planning process continues, and as shown in figs. 4 a-4d, in step 3, to be placed on by " virtual " locus guiding part above inlet point that user selectes and to be shown to surgeon.Next, as shown in figs. 5 a-5d, in the 4th plan step, regulate the supporting leg on virtual track guiding piece and globe joint movable member to set up the desired trajectory leading to tumor.Finally, in the 5th plan step, as shown in Figure 6, patients head and locus guiding part can be presented in " virtual " head fixed system, with the retainer ring orientation of the desired locations and expectation of determining fixed leg/pin, as below describe in further detail.
As one of ordinary skill in the understanding because surgical planning use software perform in " virtual " environment, so it can actual operation a few days ago or complete in former week.
After surgical planning completes, surgeon can then or in any time afterwards by being placed on patient physical in head fixed system the operation process carrying out reality.
Fig. 7 A is exemplary according to one of head fixed system 100 of the present invention but nonrestrictive embodiment.As shown in Figure 7 A, head fixed system 100 generally includes platform 102, the head retainer ring 104 being rotatably coupled to the ring bearing 106 extended from the upper surface of platform 102, head support 108 and multiple fixed leg 110.Head retainer ring 104 comprises the multiple grooves 112 along its circumferential extension.As shown in Figure 7 A, head support 108 is held movably by first groove 112, and the first fixed leg 110A is held movably by second groove 112, and the second fixed leg 110B is held movably by the 3rd groove 112.First, second and the 3rd groove 112 can be according to desired trajectory, any groove along the circumference of head retainer ring 104, and optionally can select in above-mentioned software project process.As one of ordinary skill in the understanding, head fixed system 100 may comprise more less than shown fixed leg or more fixed leg.Such as, in an example alternative embodiments, head fixed system 100 comprises four fixed legs.
First fixed leg 110A comprises the multiple fixed pin holes 116A being suitable for holding one or more steady pin 114A, 114B along its length.Can threadingly be fixed respectively pin-and-hole 116A, 116B of steady pin 114A, 114B holds, thus provides various " penetration depth " to arrange steady pin.After the pin-and-hole that is fixed holds, the first scalable steady pin 114A extends internally towards the center of head retainer ring 104.Except " penetration depth " scalable of steady pin 114A, multiple fixed pin holes 116A, 116B on fixed leg 110A, 110B provide various steady pin to surgeon and place selection.Similarly, the second fixed leg 110B comprises the second scalable steady pin 114B, the second scalable steady pin 114B by along the one in multiple fixed pin holes 116B of post 110B length movably and adjustable ground hold.As mentioned above, any amount of fixed leg can be utilized according to the character of operation.
Head retainer ring 104 is removable and be rotatably arranged in ring bearing 106.Head retainer ring 104 can rotate (as represented by arrow 118) relative to platform 102, to regulate the angle position of patients head.Head retainer ring 104 is locked in the position of expectation by one or more ring lock locking equipment 120.In one exemplary embodiment, ring lock locking equipment 120 can comprise one or more telescopic pin (not shown), and this telescopic pin is held by the one in multiple holes 122 of the neighboring along head retainer ring 104 or many persons.
Platform 102 can integrally be coupled to patient's plate 105.In addition, platform 102 is removably coupled to patient's plate 105 by hinge or similar means known in those skilled in the art.In addition, platform 102 can be placed on according to desired operation near patient's plate 105.Handle 107 is convenient in use to transfer patient and according to system of the present invention.
In addition, as shown in Figure 7 A, head fixed system 100 to comprise integrally or non-integral ground/be removably coupled to the coil supports 124 of platform 102.Coil supports 124 is constructed to hold MRI coil removedly thereon.An example coil 125 has been shown in Fig. 7 B and Fig. 7 C.Coil 125 comprises bottom coil component 127 and removable top winding component, such as, top winding component 129A and 129B shown in Fig. 7 C.As one of ordinary skill in the understanding, top winding component 129A is preferred for the track extended from head top, and top winding component 129B is preferred for the track from forehead or the extension of head side.In order to top winding component 129A or 129B is operationally coupled to bottom coil component 127, top winding component 129A and 129B is provided with alignment pin 131 and electric connector 133, and alignment pin 131 and electric connector 133 are constructed to coordinate to the corresponding cotter way 135 on bottom coil component 127 and electrical socket 137.Bottom coil component 127 comprises and is operationally coupled to MRI cable coil 125 to be connected to the adapter 143 of MRI system.
With reference to Fig. 7 A and 7B, the first end 139 of bottom coil component 127 is constructed to engage with the first coil rail sections 126, and the second end 141 of bottom coil component is constructed to engage with the second coil rail sections 128.First coil rail sections 126 and the second coil rail sections 128 make coil 125 can rotate relative to head retainer ring 104 and independent of head retainer ring 104.When rotating to the position of expectation, coil 125 locks by one or more coil lock locking equipment 130 (such as, by exemplary friction lock, pin, screw or other devices known in those skilled in the art).
Fig. 8-13 shows an exemplary process for patients head being physically placed into above-mentioned head fixed system 100.Particularly, as shown in Figure 8, process starts, and head retainer ring 104 is placed into the head of patient P.This is by lying in patient's take-off plate 105 when patient, retainer ring 104 be coupled to ring bearing 106 or when patient stands or be seated, retainer ring 104 removed execution from ring bearing 106.Then, as shown in Figure 9, the first fixed leg 110A and the second fixed leg 110B is inserted in the proper grooves 112 in head retainer ring 104, and the first steady pin 114A and the second steady pin 114B is attached to patients head.As one of ordinary skill in the understanding, steady pin can comprise any suitable attachment, such as thread spindle.If (namely head retainer ring 104 is not coupled to ring bearing 106 in advance, retainer ring 104 is not pulled down from ring bearing 106 when retainer ring 104 being attached to patients head), then next step comprises and to be placed on by patient P on platform 102 and to be locked in ring bearing 106 by retainer ring 104.Subsequently, as shown in Figure 10, make head retainer ring 104 rotate and think that locus guiding part 10 provides the path (and inlet point) towards installation site.
In the next step of this process, as shown in figure 11, locus guiding part 10, based on the information obtained during surgical planning step, is attached to the head of patient P by surgeon.As one of ordinary skill in the understanding, also can further rotate head retainer ring 104 if desired, with avoid the treatment probe/apparatus that will use and MRI hole between any potential interference.Once locus guiding part 10 is attached to patients head, just patient can be transported to MRI room and be transplanted on MRI table.
Process continues, and as shown in figure 12, MRI coil 125 is attached to patient table 102.It is understood by one of ordinary skill in the art that the orientation due to the locus guiding part 10 on patients head, in an example shown, need top winding component 129B.As shown in figure 13, once assemble coil 125, surgeon just visually can verify that track guiding piece 10 and MRI hole between B and maintain minimum range D.Finally, surgeon can carry out MRI scanning to confirm track and continual cure/process.
The above description of exemplary embodiment of the present invention is only example and describes object, is not intended to as comprehensively or limit the invention to disclosed precise form.In view of above disclosure can make many amendments and variant.
In order to explain principle of the present invention and practical application, selecting and describing these embodiments, so that others skilled in the art can be made to use the present invention and each embodiment, and being suitable for the various amendments of expection special-purpose.When not departing from essence of the present invention and scope, replaceability embodiment is apparent to technical staff belonging to the present invention.
Claims (31)
1. a head fixed system, comprising:
Platform, it has upper surface and lower surface;
Ring bearing, it is operationally coupled to the described upper surface of described platform;
Retainer ring, it is rotatably coupled to described ring bearing, and described retainer ring comprises the multiple fixing annular groove of the circumferential extension along described retainer ring;
First fixed leg, it can be received in first fixing annular groove in described fixing annular groove; And
Second fixed leg, it can be received in second fixing annular groove in described fixing annular groove.
2. head fixed system according to claim 1, also comprises and is constructed to be inserted into the head support in the 3rd fixing annular groove in described fixing annular groove.
3. head fixed system according to claim 1, wherein, described fixed leg also comprises at least one the fixing post holes running through described fixed leg.
4. head fixed system according to claim 3, also comprises and can be received with at least one steady pin engaged with patient's skull by least one fixed leg pore volume described.
5. head fixed system according to claim 3, wherein, at least one fixing post holes described comprises multiple fixing post holes.
6. head fixed system according to claim 5, also comprises multiple steady pins that can be held by least one in described multiple hole.
7. head fixed system according to claim 1, also comprises the take-off plate being removably coupled to described platform.
8. head fixed system according to claim 1, also comprises the coil supports being coupled to described platform.
9. head fixed system according to claim 1, wherein, described ring bearing also comprises the first coil guide rail and the second coil guide rail.
10. head fixed system according to claim 1, also comprise MRI coil, described MRI coil has top winding component and is coupled to the bottom coil component of described platform movably, and wherein, described MRI coil can relative to described retainer ring rotation and independent of described retainer ring.
11. head fixed systems according to claim 9, also comprise MRI coil, and described MRI coil has the top winding component rotatably engaged with described first coil guide rail, and the bottom coil component rotatably engaged with described second coil guide rail.
12. head fixed systems according to claim 1, wherein, described head retainer ring comprises the multiple fixing annular distance on the edge being arranged in described head retainer ring circumferentially.
13. head fixed systems according to claim 12, also comprise one or more ring lock that can be held by the one in described multiple fixing annular distance or many persons.
14. head fixed systems according to claim 10 and 11, wherein, described top winding component comprises one or more alignment pin that can match to the corresponding cotter way on described bottom coil component.
15. head fixed systems according to claim 10 and 11, wherein, described bottom coil component comprises the electrical connector in order to described MRI coil to be connected to MRI system.
16. head fixed systems according to claim 10, wherein, described coil supports also comprises one or more coil lock locking equipment in order to described MRI coil lock to be fixed on correct position.
17. 1 kinds of head fixed systems, comprising:
Platform, it has upper surface and lower surface;
Ring bearing, it is operationally coupled to the described upper surface of described platform;
Retainer ring, it is rotatably held by described ring bearing, and described retainer ring comprises the multiple fixing annular groove of the circumferential extension along described retainer ring;
First fixed leg, it can be contained in first fixing annular groove in described fixing annular groove, and described first fixed leg comprises the first steady pin engaged with patient's skull;
Second fixed leg, it can be contained in second fixing annular groove in described fixing annular groove, and described second fixed leg comprises the second steady pin engaged with patient's skull; And
MRI coil, it is rotatably held by described platform and is installed to described platform movably, and wherein, described MRI coil can relative to described retainer ring rotation and independent of described retainer ring.
18. head fixed systems according to claim 17, also comprise and are constructed to be inserted into the head support in the 3rd fixing annular groove in described fixing annular groove.
19. head fixed systems according to claim 17, wherein, described fixed leg also comprises at least one the fixing post holes running through described fixed leg.
20. head fixed systems according to claim 19, also comprise and can be received with at least one steady pin engaged with patient's skull by least one fixed leg pore volume described.
21. head fixed systems according to claim 19, wherein, at least one fixing post holes described comprises multiple fixing post holes.
22. head fixed systems according to claim 21, also comprise multiple steady pins that can be held by least one in described multiple hole.
23. head fixed systems according to claim 17, also comprise the take-off plate being removably coupled to described platform.
24. head fixed systems according to claim 1, also comprise the coil supports being coupled to described platform.
25. head fixed systems according to claim 17, wherein, described ring bearing also comprises the first coil guide rail and the second coil guide rail.
26. head fixed systems according to claim 25, wherein, described MRI coil comprises the top winding component and bottom coil component that are rotatably held by described first coil guide rail and described second coil guide rail.
27. head fixed systems according to claim 17, wherein, described head retainer ring comprises the multiple fixing annular distance on the edge being arranged in described head retainer ring circumferentially.
28. head fixed systems according to claim 27, also comprise one or more ring lock that can be held by the one in described multiple fixing annular distance or many persons.
29. head fixed systems according to claim 10, wherein, described coil supports also comprises one or more coil lock locking equipment in order to described MRI coil lock to be fixed on correct position.
30. 1 kinds of methods using head fixed system, described method comprises:
Head fixed system is provided, described head fixed system comprises retainer ring, the first fixed leg and the second fixed leg, described retainer ring has the multiple fixing annular groove of the circumferential extension along described retainer ring, described first fixed leg can be received in first fixing annular groove in described fixing annular groove, described first fixed leg comprises at least one steady pin, described second fixed leg can be received in second fixing annular groove in described fixing annular groove, and described second fixed leg comprises at least one steady pin;
Described head retainer ring is placed into around patients head;
Described first fixed leg adjustable ground is inserted in described first the fixing annular groove in described fixing annular groove;
Described second fixed leg adjustable ground is inserted in described second the fixing annular groove in described fixing annular groove;
Described steady pin is placed to be fixed into described retainer ring against patients head against patients head.
31. 1 kinds of methods using head fixed system, described method comprises:
Locus guiding part is placed on patients head to set up the track of inlet point;
There is provided head fixing device, described head fixing device comprises:
Platform, it has upper surface and lower surface, and described platform comprises MRI receive coil guide rail;
Ring bearing, it is operationally coupled to the described upper surface of described platform;
Retainer ring, it is rotatably coupled to described ring bearing, and described retainer ring comprises the multiple fixing annular groove of the circumferential extension along described retainer ring;
First fixed leg, it can be received in first fixing annular groove in described fixing annular groove; With
Second fixed leg, it can be received in second fixing annular groove in described fixing annular groove, and described fixed leg comprises one or more steady pin;
Described retainer ring is placed on around patients head;
Regulate described first fixed leg in described fixing annular groove and described second fixed leg;
Utilize described steady pin that described fixed leg is fixed to patients head;
Described retainer ring is locked in described ring bearing;
Rotate described retainer ring to provide the path towards described inlet point;
By being placed in described MRI receive coil guide rail by described MRI coil, described MRI coil is attached to described platform;
Carry out MRI scanning to determine described track.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161473482P | 2011-04-08 | 2011-04-08 | |
| US61/473,482 | 2011-04-08 | ||
| PCT/IB2012/051716 WO2012137179A1 (en) | 2011-04-08 | 2012-04-05 | Head fixation system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104254296A true CN104254296A (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201280028371.XA Pending CN104254296A (en) | 2011-04-08 | 2012-04-05 | Head fixation system and method |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2693972A4 (en) |
| JP (1) | JP5933901B2 (en) |
| CN (1) | CN104254296A (en) |
| WO (1) | WO2012137179A1 (en) |
Cited By (3)
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| CN109068993A (en) * | 2016-04-15 | 2018-12-21 | 曼特瑞斯医药有限责任公司 | Adjustable bracket component |
| CN111292348A (en) * | 2020-01-21 | 2020-06-16 | 滨州医学院 | MRA skull stripping method based on autonomous probe and three-dimensional labeling replacement and application thereof |
| CN112433187A (en) * | 2019-08-26 | 2021-03-02 | 通用电气精准医疗有限责任公司 | MRI system comprising a patient motion sensor |
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| CN104602638B (en) | 2012-06-27 | 2017-12-19 | 曼特瑞斯医药有限责任公司 | System for influenceing to treat tissue |
| JP7289067B2 (en) * | 2019-06-06 | 2023-06-09 | インサイテック リミテッド | Improved Magnetic Resonance (MR) Performance in MR-Guided Ultrasound Systems |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2693972A4 (en) | 2014-11-05 |
| JP2014519859A (en) | 2014-08-21 |
| JP5933901B2 (en) | 2016-06-15 |
| EP2693972A1 (en) | 2014-02-12 |
| WO2012137179A1 (en) | 2012-10-11 |
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