CN113908452A - Photon treatment auxiliary positioning illumination system and method - Google Patents
Photon treatment auxiliary positioning illumination system and method Download PDFInfo
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- CN113908452A CN113908452A CN202111204975.2A CN202111204975A CN113908452A CN 113908452 A CN113908452 A CN 113908452A CN 202111204975 A CN202111204975 A CN 202111204975A CN 113908452 A CN113908452 A CN 113908452A
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- 238000005286 illumination Methods 0.000 title claims abstract description 11
- 238000004364 calculation method Methods 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
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- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1048—Monitoring, verifying, controlling systems and methods
- A61N5/1049—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N2005/1085—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy characterised by the type of particles applied to the patient
- A61N2005/1087—Ions; Protons
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Abstract
An illumination system for auxiliary positioning of proton treatment comprises a data system (1), a positioning simulator (2), a treatment bed (3), a tattoo pen set (4), a digital camera (5) and a treatment positioning part (6). An auxiliary positioning illumination method for proton treatment comprises the following steps: the method comprises the steps of calculation, manufacturing, fixing, pre-positioning, drawing and preparing.
Description
Technical Field
The invention relates to the technical field of proton treatment assistance, in particular to a proton treatment auxiliary positioning illumination system and a proton treatment auxiliary positioning illumination method.
Background
At present, radiation therapy of diseases is mainly based on radiation, that is, radiation therapy of various kinds of radiation, but treatment using protons has been proposed definitely as early as 60 years in the last century, but since equipment is expensive and occupies too much space, the radiation therapy is really brought to the present century. Proton therapy is one of the most advanced radiotherapy measures in the world at present, has the characteristics of high treatment precision, good treatment effect and small toxic and side effect, and is popular with tumor medical workers and patients. Proton therapy generally refers to the treatment of a specific radiation of a proton beam, often called in combination with certain heavy ions, unlike X, gamma rays, where protons are charged particles and lose energy in their interaction with tissue, primarily through collisions with orbital electrons outside the nucleus. The energy transferred to the tissue by the proton in the process is inversely proportional to the square of the moving speed of the proton, the energy loss is the most at the end close to the range, the percentage depth dose curve in the tissue is a typical Bragg peak type, called SOBP area for short, the front dose of the target area is very low, the rear dose of the target area is equal to 0, the side scattering is small, and the side penumbra is small, so that the tumor tissue can be given a sufficiently high radiation dose in the precise treatment process, and the surrounding normal tissue can receive a small radiation dose. Compared with photons, proton therapy can reduce the radiation quantity of normal tissues by at least half, so that the obvious defect of ray therapy is overcome, and the proton therapy is of great benefit to patients with poor physical conditions and weak immunity.
Currently, proton therapy also requires positioning means, such as positioning means commonly used in radiotherapy, a body surface drawing method, a vacuum pad method, a thermoplastic membrane method and the like, and proton therapy can also use the methods to position a reference center, which is similar in principle.
The body surface scribing method is the easiest to implement, but for proton treatment, the body surface scribing method has obvious defects, the proton treatment has higher requirement on the positioning accuracy, which is much higher than that of the general ray treatment, such as x-ray, and the treatment requirement can be met as long as the lesion part is in a wider ray beam, so the requirement on the positioning accuracy is not too high, but the proton treatment is not feasible, and if the explosion point region, or sobp region, of the proton treatment cannot be well overlapped with the treatment part, the treatment effect is greatly reduced, and larger deviation occurs.
Following a line drawing method similar to radiotherapy, errors may be large, firstly, due to respiration, etc., the drawn positioning position may cause large misalignment of the pop-spot region, and secondly, if a misalignment occurs, such as a problem of the view angle of the operator, a misoperation of the operator, an undesired movement of the patient, a movement of the treatment couch, an unexpected displacement of the patient relative to the treatment couch, etc., these may result in large misalignment of the pop-spot region and the affected part.
A further problem is that the treatment head of a submachine is generally large and difficult to locate simply by means of an attached led lamp, which if it is vertically transmissive, tends to be far from the treatment centre, meaning that this location is difficult to perform simply. The treatment head is close to the central position, and irradiation positioning means such as infrared rays and led cannot be arranged.
The traditional line drawing method is to draw lines only at the positioning positions, and the problems can not be solved no matter the lines are in the shapes of X, single points, Chinese characters or cross characters.
Disclosure of Invention
The invention aims to provide a system and a method, which mainly solve the problems that when a mainstream line drawing method positioning technology such as body surface line drawing is applied to proton treatment, the accuracy required by the proton treatment is high, the tolerance to errors is low, and the positioning errors are prevented from influencing the treatment effect.
In order to achieve the purpose, the invention provides the following technical scheme: a kind of proton treatment assists and positions the lighting system, characterized by: comprises a data system, a positioning simulator, a treatment bed, a tattoo pen set, a digital camera and a treatment positioning part.
The data system comprises a memory, a computing module, an image processing module and a processor. The image processing module mainly processes the comparison, positioning and distance calculation of images, the determination of positioning positions and other calculations.
The positioning simulator is provided with a simulation head, a positioning LED lamp is arranged on the simulation head, a fixed shell is fastened on the outer side of the simulation head, a simulation LED lamp holder is fixed on the lower side of the fixed shell, a circle of LED lamps with the light emitting direction vertically downward are arranged on the simulation LED lamp holder, and the circle of LED lamps are positioned on a horizontal circumference; the positioning LED lamp is formed by combining a plurality of adjacent LED lamps and generating a cross-shaped positioning light beam. The LED is, for example, an LED beam lamp customized by a manufacturer, and emits a beam in a narrow columnar shape by a light condensing means. The size of the lower side of the fixed shell is similar to that of the lower groove, so that the LED lamp holders with the same size can be prevented conveniently, the upper side of the fixed shell can be different according to the size of the simulation head, and the thickness of the fixed shell can be equal to that of the lower groove
The upper surface of the treatment bed is rectangular, the edge of the treatment bed is not provided with a bulge, and a plurality of transverse lines and vertical lines for positioning are arranged on the treatment bed.
The tattooing pen set comprises a plurality of tattooing pens with different colors, and the used pigment is temporary tattooing pigment; the data of the digital camera is directly connected or transmitted to a data system through wifi.
The treatment positioning part comprises a proton machine treatment head, a silica gel pad, a plastic sleeve and a treatment LED lamp holder; the upper side of the plastic sleeve is provided with an upper groove, the upper groove sleeve is fixed on the outer side of the proton machine treatment head, a silica gel pad is arranged between the upper groove and the proton machine treatment head, the middle plate is arranged in the middle of the plastic sleeve, the lower side of the middle plate is provided with a lower groove, and the treatment LED lamp holder is fixed in the lower groove.
Furthermore, the center of a positioning light beam emitted by the positioning LED lamp is superposed with the center of a circle of the simulation LED lamp holder; the fixed shell is fastened on the simulation head in the form of an outer fixed belt, and the fixed belt is screwed and fixed by a fastening bolt; the simulated LED lamp holder is fixed on the lower side of the fixed shell in a threaded connection manner; the upper groove is fastened on the treatment head in the form of an outer fixing belt, and the fixing belt is screwed and fixed by a fastening bolt.
The specification of the treatment LED lamp holder is completely the same as that of the simulation LED lamp holder; the depth of the upper groove is not less than 10 cm.
The thickness of silica gel pad is thicker than 4mm, and the outside has a plurality of evenly distributed's screw through-hole down inslot, and treatment LED lamp stand (64) is detained and is gone into the back in the inslot down, rotates it and from the screw through-hole screw in screw fixation of outside.
The LED lamp is powered by a lead-out power line or a battery.
An illumination method for assisting in positioning proton therapy is carried out by utilizing an illumination system for assisting in positioning proton therapy and is characterized by comprising a calculation step, a manufacturing step, a fixing step, a pre-positioning step, a drawing step and a preparation step.
(1) A calculation step: calling an explosion point area overlooking image of the current proton machine from a memory, taking a circle which is close to the outer edge of the sobp area and has an area within +/-5% of the area of the sobp area as an inner circle, lengthening the diameter of the inner circle by n centimeters each time until the diameter exceeds 15cm and is smaller than 30cm, wherein n is 3 or 4 or 5, and the original explosion point is a big explosion point circle.
(2) The manufacturing steps are as follows: measuring the outside dimension of the simulation head, measuring the outside dimension of the treatment head, and manufacturing a fixed shell, a simulation LED lamp holder, a silica gel pad, a plastic sleeve and a treatment LED lamp holder according to the numerical value of a big circle of an explosion point, wherein the inner side groove of the fixed shell is attached to the shape of the simulation head, and the outer side of the fixed shell is circular; the LED lamp rings on the simulation LED lamp holder and the treatment LED lamp holder have the same size with the explosion point large circle; the upper groove has the same shape with the treatment head and is slightly larger than the treatment head.
(3) A fixing step: fixing the simulation LED lamp holder at the lower side of the fixing shell, fastening the fixing shell at the outer side of the simulation head and fixing the simulation head by the fixing band, fixing the treatment LED lamp holder in the lower groove, filling the upper groove into the silica gel pad and sleeving the upper groove at the outer side of the treatment head, and fixing the treatment LED lamp holder by the fixing band.
(4) Pre-positioning: selecting the front side or the back side for treatment according to a preset treatment plan of a patient, selecting a supine position for the patient on the front side, selecting a prone position for the patient on the back side, enabling the patient to lie on a treatment bed, righting the position of the patient, and shooting a field verification sheet and an analog positioning sheet by a digital camera; the two pieces are transmitted to a data system, superimposed using one or more easily discernable bony structure locations, and the treatment center location (x, y) is identified according to a predetermined treatment plan.
(5) Painting: and (4) the patient is righted in the same way as in the step (4), the positioning LED lamp is moved to the position (x, y) opposite to the treatment center position and continuously irradiates, a cross mark is drawn at the cross irradiation position by using a first tattooing pen, and a reference circle is drawn according to the simulated LED lamp holder.
(6) The preparation method comprises the following steps: the patient goes to a treatment room, the proton machine is started, the treatment head is vertically placed and the position of the treatment head is adjusted, and the proton machine is adjusted and positioned according to the relative position of the irradiation light beam of the treatment LED lamp holder and the reference circle, so that the preparation is prepared for treatment.
Compared with the prior art, the method has a plurality of unobvious advantages: firstly, the general proton machine can not provide simple reference positioning, because the transmitting head or the transmitting end of the general proton machine is too large, the simple infrared and LED positioning devices are difficult to attach to the edge of the general proton machine, the projection positions of the devices can be too far away from the positioning positions, the problem is solved by the arrangement of the treatment positioning part skillfully, the treatment head can not be damaged due to the action of the silica gel pad, and secondly, the reference method of the line drawing method is calibrated by providing a mode of aligning a circular reference line and an LED lamp ring, the treatment accuracy is greatly ensured, the alignment deviation occurs, such as the visual angle problem of an operator, the misoperation of the operator, the movement of the patient according to the requirement, the movement of the treatment bed, the unexpected displacement of the patient relative to the treatment bed and the like, which can cause the explosion point area to be not coincident with the affected part, these problems are to a large extent avoided.
Drawings
FIG. 1 is a side and bottom view of a positioning simulator.
Fig. 2 is a schematic view of the positioning simulator and treatment couch.
Figure 3 is a side cross-sectional view of the treatment positioning portion.
FIG. 4 is a schematic diagram of the main steps.
Reference numerals: 1. data system, 2, positioning simulator, 3, treatment bed, 4, tattoo pen set, 5, digital camera, 6, treatment positioning part, 11, memory, 12, calculation module, 13, image processing module, 14, processor, 21, simulation head, 22, positioning LED lamp, 23, fixing shell, 24, simulation LED lamp holder, 61, proton machine treatment head, 62, silica gel pad, 63, plastic sleeve, 64, treatment LED lamp holder, 631, upper groove, 632 and lower groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
Example 1
A kind of proton treatment assists and positions the lighting system, characterized by: comprises a data system 1, a positioning simulator 2, a treatment bed 3, a tattoo pen set 4, a digital camera 5 and a treatment positioning part 6.
The data system comprises a memory 11, a calculation module 12, an image processing module 13, a processor 14. The image processing module mainly processes the comparison, positioning and distance calculation of images, the determination of positioning positions and other calculations.
The positioning simulator 2 is provided with a simulation head 21, a positioning LED lamp 22 is arranged on the simulation head, a fixed shell 23 is fastened on the outer side of the simulation head, a simulation LED lamp holder 24 is fixed on the lower side of the fixed shell, a circle of LED lamps with the light-emitting direction vertically downward are arranged on the simulation LED lamp holder, and the circle of LED lamps are positioned on a horizontal circumference; the positioning LED lamp is formed by combining a plurality of adjacent LED lamps and generating a cross-shaped positioning light beam. The circle of LED lamps is a combination of a circle of LED lamps which are arranged along the circumference in a overlooking way, the size of the circumference is approximately the same as the explosion point area of the used proton machine, and if the explosion point area is not circular or is not strictly circular, one circumference which is the closest to the explosion point area is selected. For example, a circle which is close to the outer edge of the sobp region and has the area within +/-5% of the area of the sobp region is taken; the LED is, for example, an LED beam lamp customized by a manufacturer, and emits a beam in a narrow columnar shape by a light condensing means.
The upper surface of the treatment bed 3 is rectangular, no bulge is arranged on the edge of the treatment bed, and a plurality of transverse lines and vertical lines for positioning are arranged on the treatment bed. The scrubbing-resistant film can be replaced regularly on the treatment bed for protecting the bed body. The transverse and vertical lines of orientation may be drawn on the scrub resistant film.
The tattooing pen set 4 comprises a plurality of tattooing pens with different colors, and the used pigment is temporary tattooing pigment; the data of the digital camera is directly connected or transmitted to a data system through wifi.
The treatment positioning part 6 comprises a proton machine treatment head 61, a silica gel pad 62, a plastic sleeve 63 and a treatment LED lamp holder 64; the upper side of the plastic sleeve 63 is provided with an upper groove 631, the upper groove sleeve is fixed on the outer side of the proton machine treatment head, a silica gel pad is padded between the upper groove and the proton machine treatment head, the middle plate 631 is arranged in the middle of the plastic sleeve, the lower side of the middle plate is provided with a lower groove, and the treatment LED lamp holder 64 is fixed in the lower groove. The therapy head is expensive, the silica gel pad is lined on the outer surface of the therapy head to play a role in protection, and the silica gel pad is required to be detached when the therapy head is not used for a long time to prevent solid phase fusion and adhesion.
Furthermore, the center of a positioning light beam emitted by the positioning LED lamp is superposed with the center of a circle of the simulation LED lamp holder; the fixing shell is fastened on the simulation head in the form of an outer fixing band, the fixing band is screwed and fixed by a fastening bolt, if the treatment head is small at the top and big at the bottom, the fixing band is not needed, but the fixing band is necessary when the cross section is the same or even large at the top and small at the bottom (less frequently), and the fixing band is also called a lock band, a thread band and the like; the simulated LED lamp holder is fixed on the lower side of the fixed shell in a threaded connection manner; the upper groove is fastened on the treatment head in the form of an outer fixing belt, and the fixing belt is screwed and fixed by a fastening bolt.
The therapeutic LED lamp holder and the simulation LED lamp holder have the same specification, and the middle part is hollowed; the depth of the upper groove is not less than 10 cm.
The thickness of silica gel pad is thicker than 4mm, and the outside has a plurality of evenly distributed's screw through-hole down inslot, and treatment LED lamp stand 64 is detained in the inslot down, rotates it and from the screw through-hole screw in screw fixation of outside. The lower edge of the lower groove can be provided with an inward flange, so that the treatment LED lamp holder is buckled in to realize basic fixation, and then is rotationally aligned to carry out thread fixation.
The LED lamp is powered by a lead-out power line or a battery. The LED is, for example, an LED beam lamp customized by a manufacturer, and emits a beam in a narrow columnar shape by a light condensing means.
Example 2
An illumination method for assisting in positioning proton therapy is carried out by utilizing an illumination system for assisting in positioning proton therapy and is characterized by comprising a calculation step, a manufacturing step, a fixing step, a pre-positioning step, a drawing step and a preparation step.
(1) A calculation step: calling an explosion point area overlooking image of the current proton machine from a memory, taking a circle which is close to the outer edge of the sobp area and has an area within +/-5% of the area of the sobp area as an inner circle, lengthening the diameter of the inner circle by n centimeters each time until the diameter exceeds 15cm and is smaller than 30cm, wherein n is 3 or 4 or 5, and the original explosion point is a big explosion point circle. The reason for this is to facilitate the extrapolation of the location of the detonation zone from the outside. For example, the diameter of the inner circle is 2.5cm, 5cm is added each time, and the requirement is met by adding three times, so that when comparison is carried out, it can be conveniently known that the position of the reference circle inwards by 15cm is the edge of the explosion point area, and various alignment operations are facilitated.
(2) The manufacturing steps are as follows: measuring the outside dimension of the simulation head, measuring the outside dimension of the treatment head, and manufacturing a fixed shell, a simulation LED lamp holder, a silica gel pad, a plastic sleeve and a treatment LED lamp holder according to the numerical value of a big circle of an explosion point, wherein the inner side groove of the fixed shell is attached to the shape of the simulation head, and the outer side of the fixed shell is circular; the LED lamp rings on the simulation LED lamp holder and the treatment LED lamp holder have the same size with the explosion point large circle; the upper groove has the same shape with the treatment head and is slightly larger than the treatment head. When the size is not the same from top to bottom in the treatment head outside, the silica gel pad can be made into a matched shape, namely, the silica gel pad is matched with a big end down or matched with a big end down, so that the upper groove is always vertically fixed, and the fixing effect of the fixing band is convenient.
(3) A fixing step: fixing the simulation LED lamp holder on the lower side of the fixing shell, fastening the fixing shell outside the simulation head and fixing the simulation head by the fixing band, fixing the treatment LED lamp holder in the lower groove, filling the upper groove into the silica gel pad and sleeving the treatment head outside, and fixing by the fixing band, wherein the fixing is generally to screw the thread on the hoop.
(4) Pre-positioning: selecting the front side or the back side for treatment according to a preset treatment plan of a patient, selecting a supine position for the patient on the front side, selecting a prone position for the patient on the back side, enabling the patient to lie on a treatment bed, righting the position of the patient, and shooting a field verification sheet and an analog positioning sheet by a digital camera; the two pieces are transmitted to a data system, superimposed using one or more easily discernable bony structure locations, and the treatment center location (x, y) is identified according to a predetermined treatment plan.
(5) Painting: and (4) the patient is righted in the same way as in the step (4), the positioning LED lamp is moved to the position (x, y) opposite to the treatment center position and continuously irradiates, a cross mark is drawn at the cross irradiation position by using a first tattooing pen, and a reference circle is drawn according to the simulated LED lamp holder. For example, the deviation of the respiration is not taken into account, for example, by administering a medication that reduces the respiration rate to the patient, or by putting a restraint on the patient, or by using both.
(6) The preparation method comprises the following steps: the patient goes to a treatment room, the proton machine is started, the treatment head is vertically placed and the position of the treatment head is adjusted, and the proton machine is adjusted and positioned according to the relative position of the irradiation light beam of the treatment LED lamp holder and the reference circle, so that the preparation is prepared for treatment.
Furthermore, shooting a shooting field verification sheet and a simulation positioning sheet, wherein one of the shooting field verification sheet and the simulation positioning sheet is selected for use after multiple sheets are repeatedly shot; easily distinguishable locations of bony structures include the clavicle end, larynx, each thoracic vertebra and the center of the spine; the preset treatment plan content comprises the selection of front or back for treatment and the treatment center position which is calculated by the data system and is aimed at the center of the detonation zone; the reference center position may also be an "x" type or an "y" type.
Example 3
The other steps are the same as the embodiment 2, wherein the step (1) such as the inner circle diameter is 3.5cm, and the requirement is satisfied by adding 4cm each time and adding three times, so that when comparing, it can be conveniently known that the reference circle position 12cm inward is the edge of the explosion point area, thereby facilitating various alignment operations.
And (3) fixing by using a fixing belt, wherein the fixing is to insert a screw into the hoop and screw the hoop tightly.
Step (5) here consists, for example, in taking account of the deviations in respiration, in taking into account the drugs which reduce the respiration amplitude for the patient, or in wearing a restraint garment for the patient, in continuously asking the patient to hold his breath while drawing the reference center position, in observing the position at which the lamp is aligned, in drawing the reference center approximately in the middle of the statistical significance, and in carrying out the same operation before the proton irradiation.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (3)
1. A kind of proton treatment assists and positions the lighting system, characterized by:
comprises a data system (1), a positioning simulator (2), a treatment bed (3), a tattoo pen set (4), a digital camera (5) and a treatment positioning part (6);
the data system comprises a memory (11), a computing module (12), an image processing module (13) and a processor (14);
the positioning simulator (2) is provided with a simulation head (21), a positioning LED lamp (22) is arranged on the simulation head, a fixed shell (23) is fastened on the outer side of the simulation head, a simulation LED lamp holder (24) is fixed on the lower side of the fixed shell, a circle of LED lamps with the light-emitting direction vertically downward are arranged on the simulation LED lamp holder, and the circle of LED lamps are positioned on a horizontal circumference; the positioning LED lamps are formed by combining a plurality of adjacent LED lamps and generate cross-shaped positioning light beams;
the upper surface of the treatment bed (3) is rectangular, the edge of the treatment bed is not provided with a bulge, and a plurality of transverse lines and vertical lines for positioning are arranged on the treatment bed;
the tattooing pen set (4) comprises a plurality of tattooing pens with different colors, and the used pigment is temporary tattooing pigment;
the data of the digital camera is directly connected or transmitted to a data system through wifi;
the treatment positioning part (6) comprises a proton machine treatment head (61), a silica gel pad (62), a plastic sleeve (63) and a treatment LED lamp holder (64); the upper side of the plastic sleeve (63) is provided with an upper groove (631), the upper groove sleeve is fixed on the outer side of the proton machine treatment head, a silica gel pad is padded between the upper groove and the proton machine treatment head, the middle plate (631) is arranged in the middle of the plastic sleeve, a lower groove (632) is arranged on the lower side of the middle plate, and the treatment LED lamp holder (64) is fixed in the lower groove.
2. The photon-therapy-assisted positioning illumination system of claim 1, wherein:
the center of a positioning light beam emitted by the positioning LED lamp is superposed with the center of a circle of the simulation LED lamp holder;
the fixed shell is fastened on the simulation head in the form of an outer fixed belt, and the fixed belt is screwed and fixed by a fastening bolt; the simulated LED lamp holder is fixed on the lower side of the fixed shell in a threaded connection manner; the upper groove is fastened on the treatment head in the form of an outer fixing belt, and the fixing belt is screwed and fixed by a fastening bolt; the specification of the treatment LED lamp holder is completely the same as that of the simulation LED lamp holder; the depth of the upper groove is not less than 10 cm;
the thickness of the silica gel pad is more than 4mm, a plurality of uniformly distributed threaded through holes are formed in the inner side and the outer side of the lower groove, and the treatment LED lamp holder (64) is rotated and screwed in screws from the threaded through holes in the outer side for fixation after being buckled into the lower groove;
the LED lamp is powered by a lead-out power line or a battery.
3. A proton treatment assisted localized lighting method using the proton treatment assisted localized lighting system of claim 2, comprising the steps of:
(1) a calculation step: calling an explosion point area overlooking image of the current proton machine from a memory, taking a circle which is close to the outer edge of the sobp area and has an area within +/-5% of the area of the sobp area as an inner circle, lengthening the diameter of the inner circle by n centimeters each time until the diameter exceeds 15cm and is less than 30cm, wherein n is 3 or 4 or 5, and the original explosion point is a big explosion point circle;
(2) the manufacturing steps are as follows: measuring the outside dimension of the simulation head, measuring the outside dimension of the treatment head, and manufacturing a fixed shell, a simulation LED lamp holder, a silica gel pad, a plastic sleeve and a treatment LED lamp holder according to the numerical value of a big circle of an explosion point, wherein the inner side groove of the fixed shell is attached to the shape of the simulation head, and the outer side of the fixed shell is circular; the LED lamp rings on the simulation LED lamp holder and the treatment LED lamp holder have the same size with the explosion point large circle; the upper groove has the same shape with the treatment head and is slightly larger than the treatment head;
(3) a fixing step: fixing the simulation LED lamp holder on the lower side of the fixing shell, fastening the fixing shell outside the simulation head and fixing the simulation head by using a fixing band, fixing the treatment LED lamp holder in the lower groove, filling the upper groove into the silica gel pad and sleeving the upper groove outside the treatment head, and fixing the treatment LED lamp holder by using the fixing band;
(4) pre-positioning: selecting the front side or the back side for treatment according to a preset treatment plan of a patient, selecting a supine position for the patient on the front side, selecting a prone position for the patient on the back side, enabling the patient to lie on a treatment bed, righting the position of the patient, and shooting a field verification sheet and an analog positioning sheet by a digital camera; transmitting the two slices to a data system, overlapping the two slices using one or more easily discernable bony structure positions, identifying a treatment center position (x, y) according to a predetermined treatment plan;
(5) painting: the patient is righted in the same way as in the step (4), the positioning LED lamp is moved to the position (x, y) and faces the treatment center position and continuously irradiates, a cross mark is drawn at the cross irradiation position by using a first tattooing pen, and a reference circle is drawn according to the simulated LED lamp holder;
(6) the preparation method comprises the following steps: the patient goes to a treatment room, the proton machine is started, the treatment head is vertically placed and the position of the treatment head is adjusted, and the proton machine is adjusted and positioned according to the relative position of the irradiation light beam of the treatment LED lamp holder and the reference circle, so that the preparation is prepared for treatment.
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| US20080217561A1 (en) * | 2007-02-27 | 2008-09-11 | Mackie Thomas R | Phantom for ion range detection |
| CN101889870A (en) * | 2010-07-20 | 2010-11-24 | 江苏同庚电子科技有限公司 | Radiotherapy locating device |
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