CN110585583B - Radioactive particle chain manufacturing and implanting device - Google Patents
Radioactive particle chain manufacturing and implanting device Download PDFInfo
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- CN110585583B CN110585583B CN201910982821.2A CN201910982821A CN110585583B CN 110585583 B CN110585583 B CN 110585583B CN 201910982821 A CN201910982821 A CN 201910982821A CN 110585583 B CN110585583 B CN 110585583B
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- 239000002245 particle Substances 0.000 title claims abstract description 125
- 230000002285 radioactive effect Effects 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000010304 firing Methods 0.000 claims abstract description 46
- 230000000149 penetrating effect Effects 0.000 claims abstract description 21
- 230000000903 blocking effect Effects 0.000 claims description 14
- 239000005355 lead glass Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 238000002513 implantation Methods 0.000 abstract description 43
- 206010028980 Neoplasm Diseases 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 4
- 239000007943 implant Substances 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 208000005189 Embolism Diseases 0.000 description 1
- 206010060862 Prostate cancer Diseases 0.000 description 1
- 208000000236 Prostatic Neoplasms Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000002490 cerebral effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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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
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N5/1007—Arrangements or means for the introduction of sources into the body
-
- 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
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N5/1007—Arrangements or means for the introduction of sources into the body
- A61N2005/1009—Apparatus for loading seeds into magazines or needles
-
- 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
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N2005/1019—Sources therefor
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to a radioactive particle chain manufacturing and implanting device, which structurally comprises a fixing frame, wherein a first gun barrel, a second gun barrel and a rotary table are arranged on the fixing frame, the rotary table is positioned between the two gun barrels, a plurality of channels are formed in the rotary table, the inner cavity of the first gun barrel is coaxial with the inner cavity of the second gun barrel, in the rotating process of the rotary table, each channel is sequentially coaxial with the inner cavity of the first gun barrel, a plurality of accessory bins are arranged on the rotary table, each accessory bin corresponds to one channel, a firing pin is connected in the second gun barrel in a penetrating manner, the front end of the first gun barrel is provided with a gun head for installing an implanting needle, and the firing pins are used for ejecting particles or accessories in the corresponding channels into the first gun barrel to manufacture particle chains or ejecting the manufactured particle chains in the first gun barrel into the implanting needle. The invention has simple structure, convenient use and light weight, simultaneously has the functions of manufacturing and implanting particle chains, greatly improves the efficiency and success rate of operation, and is suitable for radioactive particle implantation treatment technology of various tumors.
Description
Technical Field
The invention relates to a particle implantation device, in particular to a radioactive particle chain manufacturing and implantation device.
Background
The radioactive particle implantation treatment technique is a technique of implanting a radioactive source (radioactive particles) into a tumor and treating the tumor by continuous short-distance radiation emitted from the radioactive source. The standard surgical approach to prostate cancer particle implantation, combined with the use of treatment planning to match pre-operative and post-operative doses, is now widely used in the united states. The particle implantation in China is applied to tumors at all parts of the whole body, so that a good curative effect is achieved, but no standard operation is adopted, and the repetition and popularization are difficult.
The accuracy of the particle position during operation directly influences the dosage, and the application of the 3D printing template can enable the needle track position to be accurate. However, the particles clinically used in China are basically of a single structure, and in operation, due to the specificity of the local anatomy structure of a patient and the limitation of the operation level of an operator, single particles are difficult to keep to be arranged in a straight line and equidistant mode according to the requirement of a preoperative plan. Often resulting in particle aggregation or too far apart, resulting in particle dose maldistribution. In order to meet the requirements of preoperative planning, the particles need to be implanted in the under-dosed areas, resulting in an increased number of particle implants, increasing the economic burden on the patient and increasing the incidence of complications. In addition, migration and migration often occur when individual particles are implanted. Several reports on serious complications such as embolism to heart, lung and cerebral vessels after particles wander are internationally seen.
The application of the particle chain can completely solve the problems of insufficient tumor dosage and complications caused by uneven particle distribution and wandering. Particle chains have been used clinically as routine in the united states. However, in China, researches on particle chains are few, and no finished product of the particle chains is marketed in China at present. In the united states, the automated particle loading system of medical kodada has solved the problem of particle aggregation to some extent. After the system is connected to the tail of the implantation needle, a physical operator controls a computer treatment planning system to make particles into loose particle chains according to a preoperative plan, and the particle spacing is controlled by spacers with different lengths and then is automatically implanted into the tumor. The system has the advantages that the particles are manufactured into particle chains before the particles are implanted, the inaccurate dosage caused by particle aggregation is prevented to the greatest extent, and meanwhile, the problem that doctors receive radiation when the particles are implanted is well solved. But such loose, unconnected chains of particles do not solve the problem of particles wandering.
Based on this, the particle chain fabrication equipment of the us BARD company can closely connect particles and particle spacers together, almost eliminating the possibility of particles wandering. However, these products are unsuitable for tumors that shrink in the short term after particle implantation due to degradation times up to 150-180 days. In addition, the BARD company particle chain fabrication equipment is relatively heavy and does not have a particle chain implantation function only for the purpose of fabricating particle chains. Other particle chains in the United states are manufactured when leaving factories, the particle intervals are fixed, doctors cannot adjust the particle intervals according to specific conditions in operation, and the particle chains have a plurality of limitations in application.
Disclosure of Invention
The invention aims to provide a radioactive particle chain manufacturing and implanting device, which solves the problem that the prior art cannot manufacture and implant particle chains at the same time.
The invention is realized in the following way: the utility model provides a radioactive particle chain preparation and implantation device, includes the mount the one end of mount is provided with first barrel the other end of mount is provided with the second barrel the epaxial carousel that has opened on the carousel has a plurality of passageway, the inner chamber of first barrel with the inner chamber of second barrel is coaxial, just the carousel is in when revolving shaft rotation different angles on the mount, each passageway respectively with the inner chamber of first barrel be provided with a plurality of accessory storehouse on the carousel, every accessory storehouse corresponds one the passageway, accessory storehouse is used for to supplementary particle or accessory in the passageway in the cross-under has the firing pin in the second barrel first barrel front end is provided with the rifle head that is used for installing the implantation needle, the firing pin is used for making the particle chain in the corresponding passageway or ejecting the particle chain that makes in the first barrel into the implantation needle.
The rotary table is provided with shaft connection holes for penetrating through the rotary shaft, the number of the channels is not less than 3, the channels are uniformly distributed around the shaft connection holes, the rotary table is provided with a plurality of mounting grooves for mounting the accessory bin, each mounting groove corresponds to one channel, and the channels penetrate through the mounting grooves.
The accessory bin comprises a handheld portion, a cartridge clip is arranged at one end of the handheld portion, a cartridge bin is arranged in the cartridge clip, a push rod is arranged in the cartridge bin and penetrates through the handheld portion, a spring is arranged in the handheld portion and sleeved on the push rod to push the push rod to move, a discharge hole penetrating through the cartridge clip is formed in the cartridge clip, the discharge hole coincides with the end portion of the cartridge bin, the axis of the discharge hole is perpendicular to the axis of the cartridge bin, and a clamping head is arranged at one end of the push rod extending out of the handheld portion.
The fixing frame is also provided with a fixing shaft, the fixing shaft is provided with a firing pin fixing device, the firing pin is arranged on the firing pin fixing device, and the firing pin fixing device drives the firing pin to move forwards and backwards.
The striker fixer comprises a fixer body, wherein a striker through hole and at least two fixing shaft through holes are formed in the fixer body, a bearing is arranged on one fixing shaft through hole, the bearing comprises an inner bearing and an outer bearing, the outer bearing is fixed on the fixer body, threads matched with each other are respectively arranged on the inner circumferential surface of the inner bearing and the circumferential surface of a fixing shaft penetrating through the inner bearing, a bearing gear is arranged at one end of the inner bearing, a driving gear meshed with the bearing gear is arranged at one side of the bearing gear, a rocking handle is arranged at the center of the driving gear, and the rocking handle stretches out of the fixer body; and the fixing screw is used for fixing the firing pin in the firing pin through hole.
The first gun barrel comprises a lead glass tube and a stainless steel tube sleeved outside the lead glass tube, and an observation window is formed in the stainless steel tube.
The gun head has two structures, which are respectively suitable for eight-light implantation needles and MICK implantation needles.
The first type is used for installing eight light implantation needles: the gun head comprises a gun head body, a through hole penetrating through the gun head body is formed in the gun head body, a movable blocking plate is arranged at the rear end of the gun head body, an annular groove coaxial with the through hole is formed in the front end of the gun head body, threads are formed in the outer side face of the annular groove, and the inner side face of the annular groove is an inclined face.
The second is for mounting a MICK implant needle: the gun head comprises a gun head body, a through hole penetrating through the gun head body is formed in the gun head body, a movable blocking plate is arranged at the rear end of the gun head body, a notch is formed in the gun head body, a lever is connected to the inner side of the notch in an axial mode, one end of the lever is located at the front end of the through hole, the other end of the lever extends out of the gun head body, and a spring is arranged between one end of the lever extending out of the gun head body and the gun head body.
The firing pin includes front portion, rear portion and connecting portion, the front portion pass through connecting portion with the rear portion is together fixed, the front portion just can pass the inner chamber of first barrel with the passageway, connecting portion just can pass through the inner chamber of second barrel.
The diameter of the front end of the inner cavity of the second gun barrel gradually becomes smaller, a fixing nut is arranged at the rear end of the second gun barrel, and the fixing nut is used for preventing the connecting part from being separated from the second gun barrel.
According to the invention, the turntable is arranged between the first barrel and the second barrel, the turntable is provided with a plurality of channels, each channel is inserted with one accessory bin, particles or accessories are stored in each accessory bin, the discharge holes of different accessory bins correspond to the firing pin in the direction, particles or accessories in the accessory bins are pushed into the first barrel through the firing pin, the particles or different accessories enter the first barrel according to a certain sequence and are connected together under the thrust of the firing pin, so that a particle chain with required length and particle interval is formed. Then installing an implantation gun, pushing the manufactured particle chains into the implantation needle through a firing pin, and implanting the particle chains.
The invention has two functions of manufacturing and implanting particle chains, is designed with two different gun heads, is compatible with two implanting needles most commonly used in the market, and can be quickly replaced or installed. The particle chain manufacturing speed is high, and the particle chain with corresponding specification can be manufactured in real time according to actual conditions when an operation is performed. When the particle chain is implanted, the relative position of the striker and the fixing frame is fixed through the striker fixing device, the absolute position of the striker is fixed, and the fixing frame and the striker are relatively moved through swinging the handle, so that the particle chain in the implantation needle is implanted to the corresponding position when the implantation needle is pulled out of a patient.
The invention has simple structure, convenient use and light weight, simultaneously has the functions of manufacturing and implanting particle chains, greatly improves the efficiency and success rate of operation, and is suitable for radioactive particle implantation treatment technology of various tumors.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a cross-sectional view of fig. 1.
Fig. 3 is an exploded view of the present invention.
FIG. 4 is a schematic structural view of a particle chain according to the present invention.
Fig. 5 is a schematic structural view of the turntable of the present invention.
Fig. 6 is a perspective view of the turntable of the present invention.
Fig. 7 is a schematic view of the construction of the accessory cartridge of the present invention.
Fig. 8 is a schematic view of the structure of the striker holder of the present invention.
Fig. 9 is a view in the A-A direction of fig. 8.
Fig. 10 is a schematic view of a first construction of the gun head of the present invention.
Fig. 11 is a schematic view of a second construction of the gun head of the present invention.
1. A fixing frame; 2. a first barrel; 3. a second barrel; 4. a turntable; 5. a fitting bin; 6. a striker; 7. a fixed shaft; 8. a striker holder; 9. a gun head; 10. a chain of particles; 2-1, a lead glass tube; 2-2, stainless steel tube; 2-3, an observation window; 3-1, fixing the nut; 4-1, a shaft connecting hole; 4-2, channels; 4-3, a mounting groove; 4-4, sliding rails; 4-5, fixing the protrusion; 5-1, a hand-held part; 5-2, cartridge clips; 5-3, a mandril; 5-4, a push rod spring; 5-5, magazine; 5-6, a discharging hole; 5-7, clamping head; 6-1, front part; 6-2, the rear part; 6-3, a connecting part; 8-1, a fixer body; 8-2, a firing pin penetrates through the hole; 8-3, a fixed shaft is connected with the hole in a penetrating way; 8-4, fixing screws; 8-5, an outer bearing; 8-6, an inner bearing; 8-7, bearing gears; 8-8, driving gears; 8-9, rocking handle; 9-1, gun head body; 9-2, through holes; 9-3, a movable blocking plate; 9-4, annular groove; 9-5, notch; 9-6, lever; 9-7, a return spring; 10-1, radioactive particles; 10-2, a first fitting; 10-3, a second fitting.
Detailed Description
As shown in fig. 1, 2 and 3, the invention comprises a fixed frame 1, a first gun barrel 2 is arranged at one end of the fixed frame 1, a second gun barrel 3 is arranged at the other end of the fixed frame 1, a rotary table 4 is connected to the fixed frame 1 in a shaft way, a plurality of channels 4-2 are arranged on the rotary table 4, the inner cavity of the first gun barrel 2 is coaxial with the inner cavity of the second gun barrel 3, when the rotary table 4 rotates on the fixed frame 1 at different angles around a rotary shaft, each channel 4-2 is coaxial with the inner cavity of the first gun barrel 2, a plurality of accessory bins 5 are arranged on the rotary table 4, each accessory bin 5 corresponds to one channel 4-2, each accessory bin 5 is used for supplementing particles or accessories into the channel 4-2, a firing pin 6 is connected to the second gun barrel 3 in a penetrating way, a gun head 9 for installing implantation needles is arranged at the front end of the first gun barrel 2, and the firing pin 6 is used for ejecting particles or accessories in the corresponding channel 4-2 into the first gun barrel 2 to manufacture particle chains 10 or implanting the particles or the particle chains 10 manufactured in the first gun barrel 2 into the needles.
The invention is a special device for manufacturing and implanting a particle chain 10, the structure of the particle chain 10 is shown in fig. 4, the particle chain 10 comprises a radioactive particle 10-1, a first fitting 10-2 and a second fitting 10-3, wherein the shape and the size of the first fitting 10-2 are completely the same as those of the radioactive particle 10-1, the first fitting 10-2 is not radioactive, particularly has a short rod shape with the diameter of 0.8mm and the length of 4.5mm, two ends of the second fitting 10-3 are respectively provided with a horn mouth, the bottom of the horn mouth is provided with a jack for inserting the radioactive particle 10-1 or the first fitting 10-2, and a certain interval is reserved between the two jacks for blocking two adjacent radioactive particles or the first fitting 10-2. The radioactive particles 10-1 or the first fittings 10-2 are placed between the adjacent two second fittings 10-3 and connected in a chain shape, and the spacing between the two radioactive particles 10-1 is adjusted by the first fittings 10-2 and the second fittings 10-3, thereby obtaining the desired particle chain 10.
As shown in fig. 5 and 6, the turntable 4 is fan-shaped, a shaft connection hole 4-1 for connecting the rotating shaft in a penetrating way is formed in the lower portion of the fan-shaped turntable 4, the turntable 4 is connected to the fixed frame 1 in a shaft connection way through the rotating shaft, the turntable 4 can rotate around the rotating shaft, channels 4-2 penetrating through the turntable 4 are formed in the surface of the turntable 4, the number of the channels 4-2 is not less than 3, the channels 4-2 are uniformly distributed around the shaft connection hole 4-1, a plurality of mounting grooves 4-3 for mounting the accessory bin 5 are formed in the turntable 4, each mounting groove 4-3 corresponds to one channel 4-2, and the channels 4-2 penetrate through the mounting grooves 4-3. The optimal number of the channels 4-2 is specifically 4, wherein three channels 4-2 respectively correspond to the radioactive particles 10-1, the first fitting 10-2 and the second fitting 10-3, the fourth channel 4-2 does not correspond to the mounting groove 4-3, and the firing pin 6 directly passes through for implantation of the particle chain 10. Two arc-shaped sliding rails 4-4 are arranged on the disc surface of the turntable 4, the two sliding rails 4-4 are respectively positioned on the inner side and the outer side of the channel 4-2, and the circle center of the sliding rail 4-4 is coincident with the axis of the shaft connecting hole 4-1. The fixing protrusion 4-5 is arranged at the position corresponding to the channel 4-2 in the sliding rail 4-4, the fixing protrusion 4-5 is a hemispheroidal body or a hemispherical cylinder body at the top, the fixing frame 1 is correspondingly provided with a convex rib and a concave pit, the convex rib slides in the sliding rail 4-4, and different fixing protrusions 4-5 are respectively clamped in the concave pit in sequence in the sliding process, so that the axle center of the channel 4-2 coincides with the axle center of the inner cavity of the first gun barrel 2 or the second gun barrel 3, and the firing pin 6 can pass through the channel 4-2.
As shown in fig. 7, the accessory bin 5 comprises a hand-held part 5-1, a cartridge 5-2 is arranged at one end of the hand-held part 5-1, a cartridge 5-5 is arranged in the cartridge 5-2, a push rod 5-3 is arranged in the cartridge 5-5, the push rod 5-3 penetrates through the hand-held part 5-1, a push rod spring 5-4 is arranged in the hand-held part 5-1, the push rod spring 5-4 is sleeved on the push rod 5-3 and used for pushing the push rod 5-3 to move, a discharge hole 5-6 penetrating through the cartridge 5-2 is arranged on the cartridge 5-2, the discharge hole 5-6 coincides with the end of the cartridge 5-5, the axis of the discharge hole 5-6 is perpendicular to the axis of the cartridge 5-5, and a chuck 5-7 is arranged at one end of the push rod 5-3 extending out of the hand-held part 5-1. The ejector rod spring 5-4 pushes the assembled accessory to move relative to the discharging hole 5-6 through the ejector rod 5-3, and when the accessory positioned in the discharging hole 5-6 is moved out, the adjacent accessory can automatically move to the discharging hole 5-6, so that automatic feeding of the accessory is realized. Wherein the size of the magazine 5-5 and the diameter of the discharge opening 5-6 are determined according to the type of assembly, and if the assembly magazine 5 is used for storing the radioactive particles 10-1 or the first assembly 10-2, the width of the magazine 5-5 is slightly larger than the length of the radioactive particles 10-1, the thickness of the magazine 5-5 is slightly larger than the diameter of the radioactive particles 10-1, and the diameter of the discharge opening 5-6 is slightly larger than the diameter of the radioactive particles 10-1; if the accessory magazine 5 is to store the second accessories 10-3, the thickness of the magazine 5-5 needs to be larger, and should be slightly larger than the diameter of the second accessories 10-3, and the diameter of the discharge hole 5-6 should be slightly larger than the diameter of the second accessories 10-3.
The cartridge clip 5-2 of the accessory bin 5 is inserted into the mounting groove 4-3 of the rotary table 4, the axes of the discharge hole 5-6 of the accessory bin 5 and the axes of the channels 4-2 are mutually overlapped, the firing pin 6 moves forward along the inner cavity of the second gun barrel 3, accessories in the discharge hole 5-6 are ejected into the inner cavity of the first gun barrel 2 through the channels 4-2 of the rotary table 4 and the discharge hole 5-6 of the accessory bin 5, the type of the accessories ejected by the firing pin 6 each time is controlled through rotating the rotary table 4, and the ejected accessories are connected with the accessories in the first gun barrel 2, and as the two ends of the second accessory 10-3 are in a horn mouth shape, the radioactive particles 10-1 or the first accessory 10-2 can be automatically aligned and enter into the jacks, so that the manufacturing of the required particle chain 10 can be completed rapidly.
As shown in fig. 1, 2 and 3, the fixed frame 1 is further provided with a fixed shaft 7, the fixed shaft 7 is provided with a striker holder 8, and the striker 6 is mounted on the striker holder 8 so that the striker 6 can be driven by the striker holder 8 to move forward and backward. At least two fixing shafts 7 are provided, a screw thread is provided on one end surface of one of the fixing shafts 7, a striker holder 8 is screwed to the fixing shaft 7, and the striker holder 8 can be moved forward and backward by screw driving.
As shown in fig. 8 and 9, the striker holder 8 includes a holder body, a striker penetration hole 8-2 and at least two fixing shaft penetration holes 8-3 are opened in the holder body, a bearing is provided on one of the fixing shaft penetration holes 8-3, the bearing includes an inner bearing 8-6 and an outer bearing 8-5, the outer bearing 8-5 is fixed on the holder body, mutually matched threads are respectively provided on an inner circumferential surface of the inner bearing 8-6 and a circumferential surface of a fixing shaft 7 penetrating through the inner bearing 8-6, a bearing gear 8-7 is provided at one end of the inner bearing 8-6, a driving gear 8-8 engaged with the bearing gear 8-7 is provided at one side of the bearing gear 8-7, a crank 8-9 is provided at a center of the driving gear 8-8, and the crank 8-9 protrudes to an outside of the holder body. A fixing screw 8-4 is screwed on the fixer body, and the fixing screw 8-4 can fix the firing pin 6 in the firing pin through hole 8-2. When necessary, the striker 6 is fixed on the striker holder 8 by rotating the fixing screw 8-4, the rocking handle 8-9 is rocked, and relative movement is generated between the striker holder 8 and the fixing shaft 7 by gear transmission and screw transmission, and the striker 6 moves relative to the second barrel 3, the first barrel 2 due to the fixing shaft 7 being fixed with the second barrel 3, the first barrel 2, etc.
As shown in fig. 1, the first barrel 2 comprises a lead glass tube 2-1 and a stainless steel tube 2-2 sleeved outside the lead glass tube 2-1, and an observation window 2-3 is formed in the stainless steel tube 2-2. The condition in the first gun tube 2, such as whether the particle chain 10 is accurately connected, whether the number and the positions of the accessories of the particle chain 10 are correct, and the like, can be clearly seen through the observation window 2-3.
As shown in fig. 2 and 3, the firing pin 6 includes a front portion 6-1, a rear portion 6-2, and a connecting portion 6-3, the front portion 6-1 being secured to the rear portion 6-2 by the connecting portion 6-3, the front portion 6-1 being able to pass through the interior cavity of the first barrel 2 and the channel 4-2, the connecting portion 6-3 being able to pass through the interior cavity of the second barrel 3. The diameter of the front end of the inner cavity of the second gun barrel 3 is gradually reduced, a fixing nut 3-1 is arranged at the rear end of the second gun barrel 3, and the fixing nut 3-1 is used for preventing the connecting part 6-3 from falling out of the second gun barrel 3. After the striker 6 is installed, the striker 6 can only move back and forth within the second barrel 3.
As shown in fig. 10 and 11, the gun head 9 has two structures, which are respectively applicable to an eight-light implantation needle and a MICK implantation needle.
The first type is used for installing eight light implantation needles: the gun head 9 comprises a gun head body, a through hole 9-2 penetrating through the gun head body is formed in the gun head body, a movable blocking plate 9-3 is arranged at the rear end of the gun head body, an annular groove 9-4 coaxial with the through hole 9-2 is formed in the front end of the gun head body, threads are formed in the outer side face of the annular groove 9-4, and the inner side face of the annular groove 9-4 is an inclined face.
The second is for mounting a MICK implant needle: the gun head 9 comprises a gun head body, a through hole 9-2 penetrating through the gun head body is formed in the gun head body, a movable blocking plate 9-3 is arranged at the rear end of the gun head body, a notch 9-5 is formed in the gun head body, a lever 9-6 is connected to the inner shaft of the notch 9-5, one end of the lever 9-6 is located at the front end of the through hole 9-2, the other end of the lever 9-6 extends out of the gun head body, and a reset spring 9-7 is arranged between one end of the lever 9-6 extending out of the gun head body and the gun head body.
After the gun head 9 is mounted at the end of the first gun barrel 2, the movable blocking plate 9-3 is pressed down to block the passing hole 9-2, so that particles or the particle chain 10 cannot pass, at this time, the particle chain 10 starts to be manufactured, and the radioactive particles 10-1, the first fittings 10-2 and the second fittings 10-3 which are discharged in a certain sequence are connected together in sequence due to the blocking effect of the movable blocking plate 9-3 and the pushing effect of the firing pin 6, so that the particle chain 10 is formed. Eight-photon implantation needles and MICK implantation needles are the two most commonly used implantation needles in the current market. The inner surface of the joint of the eight-light implantation needle is a conical surface, the outer surface is a cylindrical surface with threads, the first gun head 9 is used, the joint of the eight-light implantation needle is installed in the annular groove 9-4, the inner surface of the joint is contacted with the inclined surface of the inner side surface of the annular groove 9-4, the threads of the outer surface of the joint are matched with the threads of the outer side surface of the annular groove 9-4, the eight-light implantation needle is fixedly installed on the gun head 9, and the axle center of the implantation needle coincides with the axle centers of the gun head 9, the inner cavity of the first gun barrel 2 and the like. The joint of the MICK implantation needle is hollow and cylindrical, the second gun head 9 is used, the lever 9-6 is pressed, the joint is directly inserted into the through hole 9-2 of the gun head 9, the lever 9-6 is released, under the action of the reset spring 9-7, the joint of the implantation needle is clamped in the through hole 9-2 by the lever 9-6, so that the MICK implantation needle is fixedly arranged on the gun head 9, and the axle center of the implantation needle coincides with the axle centers of the gun head 9, the inner cavity of the first gun barrel 2 and the like. The connection of the gun head 9 and the first gun barrel 2 can be in threaded connection, so that the gun head 9 can be replaced conveniently.
When in use, the radioactive particles 10-1, the first fittings 10-2 and the second fittings 10-3 are respectively loaded into the corresponding fitting bins 5, each fitting bin 5 is inserted into each mounting groove 4-3 of the turntable 4, and one mounting groove 4-3 is left without any fitting bin 5. The gun head 9 is installed, the movable blocking plate 9-3 on the gun head 9 is pressed down, at this time, the device only has the particle manufacturing function, the rotary table 4 is sequentially rotated to different positions according to the specific situation of a patient, the firing pin 6 is used for sequentially ejecting the radioactive particles 10-1, the first accessory 10-2 or the second accessory 10-3 in the corresponding accessory bin 5 to the inner cavity of the first gun barrel 2, the ejected radioactive particles 10-1, the first accessory 10-2 or the second accessory 10-3 are pushed forward, the front-most radioactive particles 10-1 or the accessories are tightly attached to the movable blocking plate 9-3, the two ends of the radioactive particles 10-1 or the first accessory 10-2 are inserted into the insertion holes of the second accessory 10-3 to form a required particle chain 10, and whether the manufacturing of the particle chain 10 meets the requirement or not is observed through the observation window 2-3. After the particle chain 10 is manufactured, a matched implantation needle is arranged on the gun head 9, a movable blocking switch is turned on, the firing pin 6 is retracted to the tail end, the rotary table 4 is rotated to the position of the channel 4-2 without the accessory bin 5, the firing pin 6 is used for pushing the particle chain 10 into the implantation needle, and the front end of the particle chain 10 is aligned with the tip of the implantation needle. The implantation needle is inserted into a tumor in a patient, the needle head reaches a preset position, the fixing screw 8-4 is screwed, the firing pin 6 and the firing pin fixer 8 are fixed together, the relative fixation of the firing pin 6 and the position of the patient is ensured, the handle of the firing pin fixer 8 is rocked, the implantation needle and the part fixed together with the implantation needle slowly retreats until the implantation needle completely retreats from the patient, and the particle chain 10 at the end part of the firing pin 6 is also kept motionless with the patient because the position between the firing pin 6 and the patient is kept motionless all the time, so that the particle chain 10 is accurately implanted into the tumor.
Claims (6)
1. The manufacturing and implanting device for the radioactive particle chains is characterized by comprising a fixing frame, wherein a first gun barrel is arranged at one end of the fixing frame, a second gun barrel is arranged at the other end of the fixing frame, a rotary table is connected onto the fixing frame in an axial mode, a plurality of channels are formed in the rotary table, the inner cavity of the first gun barrel is coaxial with the inner cavity of the second gun barrel, when the rotary table rotates on the fixing frame for different angles around a rotary shaft, the channels are respectively coaxial with the inner cavity of the first gun barrel, a plurality of accessory bins are arranged on the rotary table, each accessory bin corresponds to one channel, each accessory bin is used for supplementing particles or accessories into each channel, a firing pin is connected into each second gun barrel in a penetrating mode, a gun head used for installing an implanting needle is arranged at the front end of each first gun barrel, and each firing pin is used for ejecting particles or accessories in the corresponding channel into the first gun barrel to manufacture particle chains or ejecting particles manufactured in the first gun barrel into the implanting needle;
the fixed frame is also provided with a fixed shaft, the fixed shaft is provided with a firing pin fixer, the firing pin is arranged on the firing pin fixer, and the firing pin fixer drives the firing pin to move back and forth; the striker fixer comprises a fixer body, wherein a striker through hole and at least two fixing shaft through holes are formed in the fixer body, a bearing is arranged on one fixing shaft through hole, the bearing comprises an inner bearing and an outer bearing, the outer bearing is fixed on the fixer body, threads matched with each other are respectively arranged on the inner circumferential surface of the inner bearing and the circumferential surface of a fixing shaft penetrating through the inner bearing, a bearing gear is arranged at one end of the inner bearing, a driving gear meshed with the bearing gear is arranged at one side of the bearing gear, a rocking handle is arranged at the center of the driving gear, and the rocking handle stretches out of the fixer body; a fixing screw is screwed on the fixer body and is used for fixing the firing pin in the firing pin penetrating hole;
the gun head comprises a gun head body, a through hole penetrating through the gun head body is formed in the gun head body, a movable blocking plate is arranged at the rear end of the gun head body, an annular groove coaxial with the through hole is formed in the front end of the gun head body, threads are formed in the outer side face of the annular groove, and the inner side face of the annular groove is an inclined plane; or (b)
The gun head comprises a gun head body, a through hole penetrating through the gun head body is formed in the gun head body, a movable blocking plate is arranged at the rear end of the gun head body, a notch is formed in the gun head body, a lever is connected to the inner side of the notch in an axial mode, one end of the lever is located at the front end of the through hole, the other end of the lever extends out of the gun head body, and a spring is arranged between one end of the lever extending out of the gun head body and the gun head body.
2. The apparatus according to claim 1, wherein the turntable is provided with a shaft hole for penetrating the shaft, the number of the channels is not less than 3, the channels are uniformly distributed around the shaft hole, the turntable is provided with a plurality of mounting grooves for mounting the accessory bin, each mounting groove corresponds to one channel, and the channels penetrate through the mounting grooves.
3. The device for manufacturing and implanting the radioactive particle chain according to claim 1, wherein the accessory bin comprises a holding part, a cartridge clip is arranged at one end of the holding part, a cartridge bin is arranged in the cartridge clip, a push rod is arranged in the cartridge bin and penetrates through the holding part, a spring is arranged in the holding part and sleeved on the push rod to push the push rod to move, a discharge hole penetrating through the cartridge clip is formed in the cartridge clip, the discharge hole coincides with the end part of the cartridge bin, the axis of the discharge hole is perpendicular to the axis of the cartridge bin, and a clamping head is arranged at one end of the push rod extending out of the holding part.
4. The apparatus of claim 1, wherein the first barrel comprises a lead glass tube and a stainless steel tube sleeved outside the lead glass tube, and wherein an observation window is formed in the stainless steel tube.
5. The apparatus of claim 1, wherein the firing pin comprises a front portion, a rear portion, and a connecting portion, the front portion being secured to the rear portion by the connecting portion, the front portion being adapted to pass through the interior cavity of the first barrel and the passageway, the connecting portion being adapted to pass through the interior cavity of the second barrel.
6. The implanting device for manufacturing the radioactive particle chain of claim 5, wherein the diameter of the front end of the inner cavity of the second barrel is gradually reduced, and a fixing nut is arranged at the rear end of the second barrel, and the fixing nut is used for preventing the connecting part from being pulled out of the second barrel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910982821.2A CN110585583B (en) | 2019-10-16 | 2019-10-16 | Radioactive particle chain manufacturing and implanting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910982821.2A CN110585583B (en) | 2019-10-16 | 2019-10-16 | Radioactive particle chain manufacturing and implanting device |
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| CN110585583A CN110585583A (en) | 2019-12-20 |
| CN110585583B true CN110585583B (en) | 2024-03-01 |
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| CN113274629A (en) * | 2021-05-15 | 2021-08-20 | 张莹莹 | Tumor radioactive particle chain manufacturing and injecting device |
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| US6007474A (en) * | 1997-10-20 | 1999-12-28 | Ablation Technologies, Inc. | Radioactive and/or thermal seed implantation device |
| CN2524773Y (en) * | 2002-02-08 | 2002-12-11 | 张亨波 | Viewable implanting gun for implanting treating tumors between seed source tissue |
| CN106512198A (en) * | 2016-11-15 | 2017-03-22 | 天津赛德生物制药有限公司 | Radioactive particle implanting device |
| CN207980169U (en) * | 2017-08-22 | 2018-10-19 | 曲靖市第二人民医院 | A kind of continuous radioactivity125I particle chains |
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| US6007474A (en) * | 1997-10-20 | 1999-12-28 | Ablation Technologies, Inc. | Radioactive and/or thermal seed implantation device |
| CN2524773Y (en) * | 2002-02-08 | 2002-12-11 | 张亨波 | Viewable implanting gun for implanting treating tumors between seed source tissue |
| CN106512198A (en) * | 2016-11-15 | 2017-03-22 | 天津赛德生物制药有限公司 | Radioactive particle implanting device |
| CN207980169U (en) * | 2017-08-22 | 2018-10-19 | 曲靖市第二人民医院 | A kind of continuous radioactivity125I particle chains |
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| Title |
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| 超声引导放射性~(125)I粒子植入治疗头颈部复发或转移癌;王俊杰 等;中国微创外科杂志;第7卷(第2期);120-122 * |
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