阅读说明：本技术 一种用于放射性粒子自动装载的系统 (System for automatically loading radioactive particles ) 是由 阎尔坤 李鹏飞 毕朝阳 于 2019-03-19 设计创作，主要内容包括：本发明公开了一种用于放射性粒子自动装载的系统,包括盘式振动器、振动盘,直线振动器、直线振动轨道,放射性粒子活度检测探头,粒子夹取装置,弹夹体进给装置,弹夹帽夹取装置,弹夹帽放置台和弹夹旋合装置；在控制系统的控制下,完成粒子排序、传输,活度检测,剔除活度不匹配粒子,装填活度匹配粒子至弹夹体和弹夹的组装。本发明的系统可实现粒子装载全过程自动化完成,从而提高装载效率,保证装载准确性,降低操作人员的劳动强度和减少所受的辐射。(The invention discloses a system for automatically loading radioactive particles, which comprises a disc vibrator, a vibrating disc, a linear vibrator, a linear vibrating track, a radioactive particle activity detecting probe, a particle clamping device, a cartridge clip body feeding device, a cartridge clip cap clamping device, a cartridge clip cap placing table and a cartridge clip screwing device, wherein the disc vibrator is arranged on the vibrating disc; under the control of the control system, the particle sorting, the transmission and the activity detection are completed, the particles with mismatched activity are removed, and the particles with matched activity are filled into the cartridge clip body and the cartridge clip. The system can realize the automation completion of the whole particle loading process, thereby improving the loading efficiency, ensuring the loading accuracy, reducing the labor intensity of operators and reducing the radiation.)

1. A system for automatically loading radioactive particles comprises a disc vibrator (2), wherein a vibrating disc (21) is connected to the disc vibrator (2), a discharge end (221) of the vibrating disc (21) is connected with the right end of a linear vibrating track (31), and a linear vibrator (3) is connected below the linear vibrating track (31); a radioactive particle activity detection probe (4) is arranged above the linear vibration track (31); a waste source tank (32) is arranged below the left end of the linear vibration track (31); a first position sensor (33), a second position sensor (34) and a third position sensor (35) are respectively arranged on the upper surface of the linear vibration track (31) from right to left, the second position sensor (34) is positioned below the radioactive particle activity detection probe (4), a groove (311) with a trapezoidal longitudinal section is arranged at the left end of the linear vibration track (31), a particle clamping device (5) is arranged on the left side of the linear vibration track (31), the particle clamping device (5) comprises a first horizontal slide rail (51), and the first horizontal slide rail is in sliding connection with a first vertical slide rail (52); the first vertical slide rail (52) is connected with the first slide block (53) in a sliding way; a first electric clamping jaw (54) fixedly connected to the first sliding block (53) is connected with a third motor (541); the first vertical sliding rail (52) is connected with a second motor (521); the first horizontal sliding rail (51) is connected with a first motor (511); a clip feeding device (6) is arranged in front of the linear vibration track (31) and the particle clamping device (5), the clip feeding device (6) comprises a first linear slide rail (61) parallel to the linear vibration track (31), a clip clamping table (62) is connected with the first linear slide rail (61) in a sliding manner, the clip clamping table (62) is provided with a clamping groove (63), and the first linear slide rail (61) is connected with a fourth motor (64); a cartridge clip cap clamping device (7) is arranged on the left side of the particle clamping device (5) and behind the cartridge clip body feeding device (6), the cartridge clip cap clamping device (7) comprises a second horizontal slide rail (71), and the second horizontal slide rail (71) is connected with a second vertical slide rail (72) in a sliding manner; the second vertical slide rail (72) is connected with the second slide block (73) in a sliding way; the second electric clamping jaw (74) fixedly connected to the second sliding block (73) is connected with a seventh motor (741); the second vertical slide rail (72) is connected with a sixth motor (721); the second horizontal sliding rail (71) is connected with a fifth motor (711); a cartridge clip cap placing table (8) is arranged below the cartridge clip cap clamping device (7), and a cartridge clip cap placing groove (81) is arranged on the upper surface of the cartridge clip cap placing table (8); a cartridge clip screwing device (9) is arranged on the left side of the particle clamping device (5), below the cartridge clip cap clamping device (7) and behind the cartridge clip body feeding device (6), the cartridge clip screwing device (9) comprises a second linear slide rail (92), the second linear slide rail (92) is connected with a screwing mechanism (91) in a sliding mode, and the screwing mechanism (91) comprises an inner hexagonal sleeve (911) and a ninth motor (912) connected with the inner hexagonal sleeve (911); the second linear sliding rail (92) is connected with an eighth motor (921); the control system (1) is respectively connected with the disc vibrator (2), the linear vibrator (3), the first motor (511), the second motor (521), the third motor (541), the fourth motor (64), the fifth motor (711), the sixth motor (721), the seventh motor (741), the eighth motor (921), the ninth motor (912), the radioactive particle activity detection probe (4), the first position sensor (33), the second position sensor (34) and the third position sensor (35) through cables.

Technical Field

The invention belongs to the field of automatic loading of radioactive particles, and particularly relates to a system for automatically loading radioactive particles.

Background

The technique of permanent implantation therapy of radioactive particles (also called "interstitial brachytherapy") is one of the important means for treating tumors, and has been widely used clinically in the treatment of cervical cancer, prostate cancer, breast cancer, skin cancer, esophageal cancer, etc., and has achieved good therapeutic effects. In clinical application of the radioactive particle implantation technology, firstly, the activity of radioactive particles is detected, then the radioactive particles are loaded into a cartridge clip, then the cartridge clip is installed in an implantation gun, and finally, the radioactive particles are directly pushed into tumor tissues through an implantation needle, so that close-range accurate radiotherapy between tissues is formed.

Although the technology is used for clinical radiotherapy at home and abroad and achieves good curative effect, the activity detection and the cartridge clip loading are both manual operations in clinical use, so the technology has some problems and defects:

firstly, activity detection is carried out, before implantation operation is carried out, medical staff need to hold forceps to check activity of radioactive particles one by one and remove particles with wrong activity, certain reading error exists in the process, labor intensity is high, and risk of misoperation is high;

secondly, for loading the particle cartridge clips, doctors need to manually load the radioactive particles with corresponding activity and corresponding quantity into the cartridge clips one by one through tweezers according to a preoperative plan, the risk of dropping the particles exists in the process, meanwhile, the manual operation efficiency is low, the workload of medical workers is heavy, and the radiation dose is high.

Disclosure of Invention

It is an object of the present invention to overcome the deficiencies of the prior art and to provide a system for automatic loading of radioactive particles.

The technical scheme of the invention is summarized as follows:

a system for automatically loading radioactive particles comprises a disc vibrator 2, wherein a vibrating disc 21 is connected to the disc vibrator 2, the discharge end 221 of the vibrating disc 21 is connected with the right end of a linear vibrating track 31, and a linear vibrator 3 is connected below the linear vibrating track 31; a radioactive particle activity detection probe 4 is arranged above the linear vibration rail 31; a waste source tank 32 is arranged below the left end of the linear vibration rail 31; a first position sensor 33, a second position sensor 34 and a third position sensor 35 are respectively arranged on the upper surface of the linear vibration track 31 from right to left, the second position sensor 34 is positioned below the radioactive particle activity detection probe 4, a groove 311 with a trapezoidal longitudinal section is arranged at the left end of the linear vibration track 31, a particle clamping device 5 is arranged on the left side of the linear vibration track 31, the particle clamping device 5 comprises a first horizontal slide rail 51, and the first horizontal slide rail is slidably connected with a first vertical slide rail 52; the first vertical slide rail 52 is connected with the first slide block 53 in a sliding manner; the first electric clamping jaw 54 fixedly connected to the first sliding block 53 is connected to the third motor 541; the first vertical slide rail 52 is connected with a second motor 521; the first horizontal sliding rail 51 is connected with a first motor 511; a clip feeding device 6 is arranged in front of the linear vibration track 31 and the particle clamping device 5, the clip feeding device 6 comprises a first linear slide rail 61 parallel to the linear vibration track 31, a clip clamping table 62 is connected with the first linear slide rail 61 in a sliding manner, the clip clamping table 62 is provided with a clamping groove 63, and the first linear slide rail 61 is connected with a fourth motor 64; a cartridge clip cap clamping device 7 is arranged at the left side of the particle clamping device 5 and behind the cartridge clip body feeding device 6, the cartridge clip cap clamping device 7 comprises a second horizontal slide rail 71, and the second horizontal slide rail 71 is connected with a second vertical slide rail 72 in a sliding manner; the second vertical slide rail 72 is connected with a second slide block 73 in a sliding manner; the second electric clamping jaw 74 fixedly connected to the second slider 73 is connected to a seventh motor 741; the second vertical slide rail 72 is connected with a sixth motor 721; the second horizontal sliding rail 71 is connected with a fifth motor 711; a cartridge clip cap placing table 8 is arranged below the cartridge clip cap clamping device 7, and a cartridge clip cap placing groove 81 is arranged on the upper surface of the cartridge clip cap placing table 8; a cartridge clip screwing device 9 is arranged at the left side of the particle clamping device 5, below the cartridge clip cap clamping device 7 and behind the cartridge clip body feeding device 6, the cartridge clip screwing device 9 comprises a second linear slide rail 92, the second linear slide rail 92 is connected with a screwing mechanism 91 in a sliding manner, and the screwing mechanism 91 comprises an inner hexagonal sleeve 911 and a ninth motor 912 connected with the inner hexagonal sleeve 911; the second linear sliding rail 92 is connected with an eighth motor 921; the control system 1 is connected to the disc vibrator 2, the linear vibrator 3, the first motor 511, the second motor 521, the third motor 541, the fourth motor 64, the fifth motor 711, the sixth motor 721, the seventh motor 741, the eighth motor 921, the ninth motor 912, the radioactive particle activity detection probe 4, the first position sensor 33, the second position sensor 34, and the third position sensor 35 via cables, respectively.

The invention has the beneficial effects that:

1. the particles with unmatched activity can be automatically removed, and the particles with matched activity are loaded to the cartridge;

2. the radioactive particles can be automatically and accurately loaded in large batch;

3. the loading efficiency of the cartridge clip can be effectively improved;

4. the labor intensity of operators can be effectively reduced, and the radiation is reduced.

Drawings

FIG. 1 is a schematic diagram of a system for automated loading of radioactive particles.

Fig. 2 is a schematic view of a vibratory pan.

Fig. 3 is a schematic view of a linear vibration orbit.

Fig. 4 is a schematic view of the particle gripping device.

Fig. 5 is a schematic view of a clip body feeding device.

Fig. 6 is a schematic view of a clip cap gripping device.

Fig. 7 is a schematic view of a cartridge cap placing table.

Fig. 8 is a schematic view of a cartridge clip screwing device.

Fig. 9 is a schematic view of the cartridge body.

Fig. 10 is a schematic view of a cartridge clip cap.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

A system for automatically loading radioactive particles is shown in figures 1 and 2 and comprises a disc vibrator 2, a vibrating disc 21 is connected to the disc vibrator 2, a discharge end 221 of the vibrating disc 21 is connected with the right end of a linear vibrating track 31, and a linear vibrator 3 is connected below the linear vibrating track 31 in figure 3; a radioactive particle activity detection probe 4 is arranged above the linear vibration rail 31; a waste source tank 32 is arranged below the left end of the linear vibration rail 31; a first position sensor 33, a second position sensor 34 and a third position sensor 35 are respectively arranged on the upper surface of the linear vibration track 31 from right to left, the second position sensor 34 is positioned below the radioactive particle activity detection probe 4, a groove 311 with a trapezoidal longitudinal section is arranged at the left end of the linear vibration track 31, and a particle clamping device 5 is arranged on the left side of the linear vibration track 31, as shown in fig. 4, the particle clamping device 5 comprises a first horizontal slide rail 51 which is slidably connected with a first vertical slide rail 52; the first vertical slide rail 52 is connected with the first slide block 53 in a sliding manner; the first electric clamping jaw 54 fixedly connected to the first sliding block 53 is connected to the third motor 541; the first vertical slide rail 52 is connected with a second motor 521; the first horizontal sliding rail 51 is connected with a first motor 511; a clip feeding device 6 is arranged in front of the linear vibration track 31 and the particle clamping device 5, as shown in fig. 5, the clip feeding device 6 comprises a first linear slide rail 61 parallel to the linear vibration track 31, a clip table 62 is connected with the first linear slide rail 61 in a sliding manner, the clip table 62 is provided with a clamping groove 63, and the first linear slide rail 61 is connected with a fourth motor 64; a cartridge clip cap clamping device 7 is arranged at the left side of the particle clamping device 5 and behind the cartridge clip body feeding device 6, as shown in fig. 6, the cartridge clip cap clamping device 7 comprises a second horizontal slide rail 71, and the second horizontal slide rail 71 is slidably connected with a second vertical slide rail 72; the second vertical slide rail 72 is connected with a second slide block 73 in a sliding manner; the second electric clamping jaw 74 fixedly connected to the second slider 73 is connected to a seventh motor 741; the second vertical slide rail 72 is connected with a sixth motor 721; the second horizontal sliding rail 71 is connected with a fifth motor 711; a cartridge clip cap placing table 8 is arranged below the cartridge clip cap clamping device 7, as shown in fig. 7, and a cartridge clip cap placing groove 81 is arranged on the upper surface of the cartridge clip cap placing table 8; a cartridge clip screwing device 9 is arranged at the left side of the particle clamping device 5, below the cartridge clip cap clamping device 7 and behind the cartridge clip body feeding device 6, as shown in fig. 8, the cartridge clip screwing device 9 comprises a second linear slide rail 92, the second linear slide rail 92 is connected with a screwing mechanism 91 in a sliding manner, and the screwing mechanism 91 comprises an inner hexagonal sleeve 911 and a ninth motor 912 connected with the inner hexagonal sleeve 911; the second linear sliding rail 92 is connected with an eighth motor 921; the control system 1 is connected to the disc vibrator 2, the linear vibrator 3, the first motor 511, the second motor 521, the third motor 541, the fourth motor 64, the fifth motor 711, the sixth motor 721, the seventh motor 741, the eighth motor 921, the ninth motor 912, the radioactive particle activity detection probe 4, the first position sensor 33, the second position sensor 34, and the third position sensor 35 via cables, respectively.

The control system 1 entrusts a nonstandard automation integration unit to design as required.

The vibration plate 21 is cylindrical, a spiral track 22 is arranged on the inner surface of the vibration plate, a baffle 23 is arranged on the spiral track 22 and used for separating and overlapping radioactive particles, and the radioactive particles of the separating and overlapping baffle fall to the bottom of the vibration plate.

The clip body 65 (commodity) placed in the clamping groove 63 is a column with a rectangular section, one end of the clip body is provided with an external thread 652, the top wall of the clip body is provided with a groove, see fig. 9, the inside of the clip body is provided with a columnar particle groove with a rectangular section, and a plurality of radioactive particles can be transversely placed.

The cartridge clip cap 82 (commercial product) placed on the cartridge clip cap placing groove 81, as shown in fig. 10, has a cap opening with inner and outer threads at one end, the inner thread is 822 and the outer thread is 823, and a spring ejector 821 is arranged in the cartridge clip cap for compressing the radioactive particles.

A system for automatically loading radioactive particles is characterized in that vibration of a vibration disc 21 is driven by vibration of a disc vibrator 2, radioactive particles are sequenced, vibration of a linear vibration rail 31 is driven by a linear vibrator 3, activity detection is performed on the radioactive particles one by one, particles with unmatched activities are removed, the particles with matched activities are loaded into an elastic clamp body 65 through a particle clamping device 5, and an elastic clamp cap 82 is screwed onto the elastic clamp body 65 through an elastic clamp cap clamping device 7 and an elastic clamp screwing device 9.

The detector of the radioactive particle activity detection probe 4 is selected from a semiconductor, a proportional counter tube, a plastic scintillator or a NaI crystal.

When the particles sensed by the first position sensor 33 pass through, immediately feeding back a signal to the control system 1, outputting an instruction by the control system, controlling the disc vibrator 2 to stop vibrating, and simultaneously, starting vibrating the linear vibrator 3;

when the second position sensor 34 senses that the particles pass through, a signal is immediately fed back to the control system 1, the control system outputs an instruction to control the linear vibrator 3 to stop vibrating, at the moment, the activity of the particles is detected by the radioactive particle activity detection probe 4 and detected data is transmitted to the control system 1, the control system 1 compares the measured activity value with a set activity value to perform matching judgment, and the control system 1 outputs an instruction to control the linear vibrator 3 to start vibrating;

the third position sensor 35 senses that the particles reach the groove 311 of the linear vibration track, and if the activity is matched, a signal is immediately fed back to the control system 1 to control the linear vibrator 3 to stop vibrating; if the activity is not matched, the third position sensor 35 feeds back a signal to the control system 1 after sensing that the particles completely pass through the groove 312 of the linear vibration track, and controls the linear vibrator 3 to continuously vibrate and vibrate the particles which are not matched into the waste source tank 32;

the linear vibrator 3 does not vibrate, the particle clamping device 5 drives the first vertical slide rail 52 to move horizontally by controlling the first motor 511 under the control of the control system 1, controls the second motor 521 to drive the first electric clamping jaw 54 to move vertically, and controls the third motor 541 to realize the opening and closing movement of the first electric clamping jaw 54, so as to complete the actions of clamping, translating and placing the radioactive particles;

the cartridge clip cap clamping device 7 is controlled by the control system 1 to drive the second vertical slide rail 72 to horizontally move by controlling the fifth motor 711, control the sixth motor 721 to drive the second electric clamping jaw 74 to vertically move, and control the seventh motor 741 to realize the opening and closing movement of the second electric clamping jaw 74, so as to complete the actions of clamping, translating and placing the cartridge clip cap;

the cartridge clip screwing device 9 controls the eighth motor 921 to drive the screwing mechanism 91 to move linearly, controls the ninth motor 912 to drive the sleeve 911 to rotate, and completes the placement of the cartridge clip cap and the screwing of the cartridge clip cap and the cartridge clip;

the clip feeding device 6, under the control of the control system 1, drives the clip table 62 of the clip to move horizontally by controlling the fourth motor 64, and completes the particle loading of the clip and the assembly of the clip respectively by cooperating with the particle clamping device 5 and the clip screwing device 9;

the cartridge clip cap placing table 8 is provided with cartridge clip cap placing grooves 81 for regular sorting of the cartridge clip caps 82.

A system for automated loading of radioactive particles of the present invention is placed in a lead box or lead shield.