CN206473671U - One-dimensional automatically scanning water tank for radiotherapy - Google Patents

One-dimensional automatically scanning water tank for radiotherapy Download PDF

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Publication number
CN206473671U
CN206473671U CN201621214179.1U CN201621214179U CN206473671U CN 206473671 U CN206473671 U CN 206473671U CN 201621214179 U CN201621214179 U CN 201621214179U CN 206473671 U CN206473671 U CN 206473671U
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water tank
fixed
guide rails
automatically scanning
connecting rod
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CN201621214179.1U
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申碧凤
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Beijing Kang Keda Science And Technology Ltd
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Beijing Kang Keda Science And Technology Ltd
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Abstract

The utility model is related to a kind of one-dimensional automatically scanning water tank for radiotherapy, including casing (100) and ionisation chamber, provided with the Z guide rails (101) with horizontal plane in the casing (100), the Z guide rails (101) are fixed on a side of casing (100), and it is fixed with sliding block (205) on the Z guide rails (101), connecting rod (200) is fixed with the sliding block (205) and is moved up and down by the drive of precision stepper motor (103) along Z guide rails (101), scanning head (201) is fixed with the connecting rod (200).The utility model drives scanning head to carry out one-dimensional vertical sweep being fixed on the vertical Z guide rails in water tank by precision stepper motor, one-dimensional dosage distribution of the ray in water can quick and precisely be detected, realize the automation of scanning, it is to avoid conventional water tank manually operates the test error brought.

Description

One-dimensional automatically scanning water tank for radiotherapy
Technical field
The utility model is related to a kind of medicine equipment, refers in particular to a kind of one-dimensional automatically scanning water tank for radiotherapy.
Background technology
Tumour radiotherapy is treatment and controls one of main method and means of tumour.Counted according to the World Health Organization, Tumor incidence has the trend risen year by year, therefore each hospital purchases the Large-scale Medical Equipment for tumour radiotherapy one after another. These equipment must be had the strict quality assurance of special professional's progress and quality by such as clinac, X knives Control, just can guarantee that and implements planned accurate treatment to patient, so as to improve tumor cure rate and control rate.Past is to them Quality assurance and quality control, most of hospital carries out with dosemeter and small water tank, and traditional small water tank is pros Body, middle part is provided with hollow connecting rod, and the hollow connecting rod is connected with former and later two faces of casing, and bar both ends open is located at casing Surface, ionisation chamber is injected by the opening, and front end props up the occlusion disk in the middle part of connecting rod, in effective measurement of ionisation chamber The heart will align with tank center.This water tank can face two problems when detecting dose of radiation:
1st, the dose of radiation at constant depth can only be detected by being added in water tank after a certain amount of water, if detecting other depths The dose of radiation of degree is, it is necessary to increase or reduce water, while also needing to readjust the distance (i.e. SSD) of the water surface and radioactive source.
2nd, artificial control water depth, often could detect one group of data every 3-4mm, and Data Detection is not continuous enough, accuracy rate It is low.
Due to tradition scanning water tank can not realize automation, water tank, which operates, not only wastes time and energy, and usually because of Manually operate and produce larger detection error, bring adverse consequences, particularly after acceptance of machine or machine overhaul newly are installed Detection and for treatment planning systems collection prepare substantial amounts of physical data when, this is particularly problematic.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of one-dimensional automatically scanning water tank for radiotherapy, and it passes through Precision stepper motor control scanning head is slided up and down on vertical Z guide rails, and scanning head Scan orientation precision is less than 0.1mm, One-dimensional dosage distribution of the ray in water can quick and precisely be detected.
The purpose of this utility model is to be achieved through the following technical solutions:
It is provided with a kind of one-dimensional automatically scanning water tank for radiotherapy, including casing 100 and ionisation chamber, the casing 100 With the Z guide rails 101 of horizontal plane, the Z guide rails 101 are fixed on a side of casing 100, and on the Z guide rails 101 It is fixed with and connecting rod 200 is fixed with sliding block 205, the sliding block 205 and by the drive of precision stepper motor 103 along Z guide rails 101 are moved up and down, and scanning head 201 is fixed with the connecting rod 200.
Further, the upper end of the Z guide rails 101 is fixed with the first spill spin block 203, and its lower end is fixed with the second spill spin block 209, driving belt 207, the driving belt 207 are wound between first spill spin block 203 and second spill spin block 209 In on the Z guide rails 101, first spill spin block 203 is connected by connecting rod 200 with precision stepper motor 103, the transmission The side of belt 207 passes through the precision stepper motor 103.
Further, center line is carved with the bottom surface of the one-dimensional automatically scanning water tank, and waterline is carved with its side.
Further, the connecting rod 200 is fixedly arranged at the front end with fixed seat 202, and the fixed seat is provided with fixing hole 105, scanning head 201 is fixed with the fixing hole 105.
Further, the one-dimensional automatically scanning water tank also includes level(l)ing device, and the level(l)ing device includes Level tune screw 106 positioned at water tank bottom, horizontal adjustment bolt 107 and horizon rule with Level tune screw cooperation 4。
The beneficial effects of the utility model:One-dimensional automatically scanning water tank provided by the utility model for radiotherapy, its Scanning head is controlled to carry out one-dimensional vertical sweep being fixed on the vertical Z guide rails in water tank by precision stepper motor, can Quick and precisely one-dimensional dosage distribution of the detection ray in water, realizes the automation of scanning, it is to avoid what artificial operation was brought Test error;It can the quick and convenient various model clinacs of scanning survey exactly x-ray and electric wire radiation Dosage distributed constant, moreover it is possible to survey MM50 cyclotrons, X knives and60The beam parameter of Co teletherapy machines, sets in radiotherapy Standby routine quality ensures to count with the detection after quality control, the new installation examination of hospital's radiotherapy apparatus or overhaul, for treatment System acquisition is drawn to prepare that larger effect will be played in terms of substantial amounts of physical data.
Brief description of the drawings
Fig. 1 is the front view of the one-dimensional automatically scanning water tank for radiotherapy described in the utility model embodiment;
Fig. 2 is the side view of the one-dimensional automatically scanning water tank for radiotherapy described in the utility model embodiment;
Fig. 3 is the contiguous block schematic diagram described in the utility model embodiment;
Fig. 4 is the horizon rule schematic diagram described in the utility model embodiment;
In figure:
100- casings;101-Z guide rails;102- protruding rails;103- precision stepper motors;The fixing threaded holes of 104- second;105- consolidates Determine hole;106- Level tune screws;107- Level tune screw rods;200- connecting rods;201- scanning heads;202- fixed seats; The spill spin blocks of 203- first;The spill spin blocks of 204- second;205- sliding blocks;206- contiguous blocks;207- driving belts;The protruding shafts of 208- first; The protruding shafts of 209- second;210- fastening bolts;211- connecting shafts;The grooves of 3- first;The fixing threaded holes of 31- first;4- horizon rules;41- Tank;42- bubbles.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally here described in accompanying drawing and The component of the utility model embodiment shown can be arranged and designed with a variety of configurations.Therefore, below to attached The detailed description of the embodiment of the present utility model provided in figure is not intended to limit claimed scope of the present utility model, But it is merely representative of selected embodiment of the present utility model.Based on the embodiment in the utility model, ordinary skill people The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the model of the utility model protection Enclose.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " are, based on orientation shown in the drawings or position relationship, to be only Described for the ease of description the utility model and simplifying, rather than to indicate or imply that signified device or element must have specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
In description of the present utility model, in addition it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, Or be integrally connected;Can be mechanical connection or electrical connection;Can be joined directly together, intermediary can also be passed through It is indirectly connected to, can is the connection of two element internals.For the ordinary skill in the art, can be according to specific feelings Condition understands concrete meaning of the above-mentioned term in the utility model.
A kind of one-dimensional automatically scanning water tank for radiotherapy described in the utility model embodiment, as shown in Figures 1 and 2, Including casing 100, ionisation chamber 201, be fixed with the casing 100 one perpendicular to horizontal plane Z guide rails 101, the Z guide rails 101 Lateral surface be fixed with contiguous block 206, Z guide rails 101 are fixedly connected by the contiguous block 206 with water tank.It is fixed on Z guide rails 101 There is sliding block 205, sliding block 205 can be slided up and down along Z guide rails 101.The top of the Z guide rails 101 is fixed with the first spill spin block 203, bottom is fixed with the second spill spin block 204, and driving belt 207 is wound between the first spill spin block 203 and the second spill spin block 204, The driving belt 207 is located on Z guide rails 101, and its side passes through the back side of the first spill spin block 203 on sliding block 205, Z guide rails 101 Precision stepper motor 211 is fixed with, is connected between the first spill spin block 203 and precision stepper motor 211 by connecting shaft 211, should Connecting shaft 211 is through Z guide rails 101.
As shown in figure 3, the contiguous block 206 is provided with the first groove 3, the side wall of first groove 3 and casing 100 matches Close, the side wall of casing 100 is inserted into first groove 3, contiguous block 206 can be fixed on casing 100, contiguous block 206 Side is provided with the second fixation for being respectively equipped with and being aligned with the first fixing threaded hole 31 on two the first fixing threaded holes 31, Z sliding blocks 205 Screw 104, and provided with the first fixing bolt being engaged with the first fixing threaded hole 31 and the second fixing threaded hole 104, connection simultaneously Block 206 is connected by the first fixing bolt with Z guide rails 101.
The as shown in Figure 1 Z guide rails 101 are provided with protruding rail 102, and sliding block 205 shown in Fig. 2 is provided with the second groove, and this Two grooves coordinate with protruding rail 102, can be fixed on sliding block 205 on Z guide rails 101 and sliding block 205 can be along along Z guide rails 101 Protruding rail 102 is slided up and down, and first is respectively equipped with the upper and lower ends position of protruding rail 102 on the Z guide rails 101 shown in Fig. 1 The protruding shaft 209 of protruding shaft 208 and second, the first protruding shaft 208 and the second protruding shaft 209 exceed protruding rail 102, for sliding block 205 to be defined in On protruding rail 102.
When it is implemented, as shown in Fig. 2 connecting rod 200 is fixedly arranged at the front end with fixed seat 202, the two passes through fastening bolt 210 fasten, and fixed seat 202 is provided with fixing hole 105 (see Fig. 1), and the fixing hole 105 coordinates with scanning head, for that will scan Probe 201 is inserted in the fixing hole 105, makes the front end hemisphere position (i.e. effective measuring center) of scanning head 201 from fixing hole Expose in 105, scanning head 201 can be anchored in fixing hole 105, the Design of length of connecting rod 200 can make to sweep just The effective measuring center for retouching 201 front ends of probe is located at bottom center's line point of intersection.When it is implemented, as shown in Fig. 2 accurate stepping Motor 211 drives connecting shaft 211 to rotate first, and connecting shaft 211 drives the first spill spin block 203 to rotate again, the band of the first spill spin block 203 The dynamic motion in the same direction of spill spin block 204 of driving belt 207 and second, driving belt 207 is with movable slider 205 along the protruding rail on Z guide rails 101 102 move up and down, and due to being fixed with connecting rod 200 on sliding block 205, connecting rod 200 is connected with fixed seat 202, when fixed seat 202 On when being fixed with scanning head 201, scanning head 201, fixed seat 202, connecting rod 200 and sliding block 205 can together with led along Z Rail 101 is slided up and down.
When it is implemented, center line is carved with the water tank bottom surface, be carved with waterline sideways, center line be divided into center horizontal line with Center vertical line, the intersection point of the two is located at the bottom center of water tank, and side waterline is used to monitor the water depth added.
When it is implemented, the water tank also includes level(l)ing device, the level(l)ing device is included in water tank bottom and set Level tune screw 106, the horizontal adjustment bolt 107 being adapted to the Level tune screw, the horizon rule 4 put (see Fig. 4).Level The middle part of chi 4 is provided with tank 41, and horizon rule 4 is placed horizontally at Fig. 1 institutes by being fixedly arranged in the middle of before bubble 42, level-off for tank 41 Show on the side wall of casing 100, horizontal adjustment bolt 107 is inserted into Level tune screw 106, rotate horizontal adjustment bolt 107, see Examine the position of bubble 42 in tank 41, when bubble 42 position be located at tank 41 middle part when, will the water tank be adjusted to level.
When it is implemented, scanning head 201 and precision stepper motor 211 are connected with automatic control system, this is automatically controlled System includes controlling machine box and computer, and the cable of scanning head 201 and precision stepper motor 103 is connected on the face of controlling machine box On plate, controlling machine box are connected with computer by cable.
When it is implemented, the size of scanning water tank is 400 × 400 × 385mm, vertical sweep size is 260mm.
When it is implemented, Z guide rails 101, sliding block 205 are from Japan's production stainless steel, precision electric motor Scan orientation precision is less than 0.1mm, scanning head is used as using waterproof ionisation chamber.
The one-dimensional water tank that the utility model is used for radiotherapy is as follows using step:
1st, scanning water tank is positioned in therapeutic bed, scanning head 201 is fixed in fixed seat 202, mobile fixed seat 202, effective measuring center of scanning head 201 is alignd with center line intersection point, fixed fixed seat 202 adds water to water to water tank Bit line highest scale;
2nd, by therapeutic bed is forward and backward, upper and lower, left and right are moved, between adjustment scanning water tank and waterline and radioactive source away from From (i.e. SSD);
3rd, Mobile treatment table, makes irradiation field center be alignd with therapeutic bed center line intersection point;
4th, will scanning water tank adjustment level;
5th, the cable of scanning head 201 and precision stepper motor 103 is connected on the panel of controlling machine box, controlling machine box It is connected with computer.
6th, computer is opened, sliding block 205 is moved by the control software on desktop, makes the center of scanning head 201 It is equal with the water surface.
7th, the depth for inputting corresponding test data in control software " Pdd DATA REASONINGs " at depth test is clicked on, is clicked on Scan button, when depth cursor display probe reaches MTD, clicks on pause button, scanning head will be parked in prefabricated survey Try depth.
8th, when clicking on " stopping " button, scanning head returns to dead-center position, at this moment can again be surveyed with repeat step 7 Amount.
Finally it should be noted that:Above-described each embodiment is merely to illustrate the technical solution of the utility model, rather than It is limited;Although the utility model is described in detail with reference to the foregoing embodiments, one of ordinary skill in the art It should be understood that:It can still modify to the technical scheme described in previous embodiment, or to which part or whole Technical characteristic carries out equivalent substitution;And these modifications or substitutions, the essence of appropriate technical solution is departed from the utility model The scope of each embodiment technical scheme.

Claims (5)

1. a kind of one-dimensional automatically scanning water tank for radiotherapy, including casing (100) and ionisation chamber, it is characterised in that:The case Provided with the Z guide rails (101) with horizontal plane in body (100), the Z guide rails (101) are fixed on a side of casing (100) On, and be fixed with the Z guide rails (101) on sliding block (205), the sliding block (205) and be fixed with connecting rod (200) and by essence The drive of close stepper motor (103) is moved up and down along Z guide rails (101), and scanning head is fixed with the connecting rod (200) (201)。
2. one-dimensional automatically scanning water tank according to claim 1, it is characterised in that:The upper end of the Z guide rails (101) is fixed There is the first spill spin block (203), its lower end is fixed with the second spill spin block (209), first spill spin block (203) and the described second rotation Driving belt (207) is wound between switch block (209), the driving belt (207) is located on the Z guide rails (101), described first Spill spin block (203) is connected by connecting rod (200) with precision stepper motor (103), and the side of the driving belt (207) is passed through The precision stepper motor (103).
3. one-dimensional automatically scanning water tank according to claim 2, it is characterised in that:The bottom of the one-dimensional automatically scanning water tank Center line is carved with face, and waterline is carved with its side.
4. one-dimensional automatically scanning water tank according to claim 3, it is characterised in that:The front end of the connecting rod (200) is consolidated Surely there is fixed seat (202), the fixed seat is provided with fixing hole (105), the fixing hole (105) and is fixed with scanning head (201)。
5. one-dimensional automatically scanning water tank according to claim 4, it is characterised in that:The one-dimensional automatically scanning water tank is also wrapped Level(l)ing device is included, the level(l)ing device includes Level tune screw (106) and the level positioned at water tank bottom Adjust horizontal adjustment bolt (107) and horizon rule (4) that screw coordinates.
CN201621214179.1U 2016-11-10 2016-11-10 One-dimensional automatically scanning water tank for radiotherapy Active CN206473671U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621214179.1U CN206473671U (en) 2016-11-10 2016-11-10 One-dimensional automatically scanning water tank for radiotherapy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621214179.1U CN206473671U (en) 2016-11-10 2016-11-10 One-dimensional automatically scanning water tank for radiotherapy

Publications (1)

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CN206473671U true CN206473671U (en) 2017-09-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113075718A (en) * 2021-06-08 2021-07-06 昌乐县人民医院 Radiation detection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113075718A (en) * 2021-06-08 2021-07-06 昌乐县人民医院 Radiation detection device

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