CN110585583A - Radioactive particle chain manufacturing and implanting device - Google Patents
Radioactive particle chain manufacturing and implanting device Download PDFInfo
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- CN110585583A CN110585583A CN201910982821.2A CN201910982821A CN110585583A CN 110585583 A CN110585583 A CN 110585583A CN 201910982821 A CN201910982821 A CN 201910982821A CN 110585583 A CN110585583 A CN 110585583A
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- head body
- particle chain
- implanting
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- 239000002245 particle Substances 0.000 title claims abstract description 126
- 230000002285 radioactive effect Effects 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 238000002513 implantation Methods 0.000 claims abstract description 38
- 238000010304 firing Methods 0.000 claims abstract description 28
- 230000000149 penetrating effect Effects 0.000 claims description 17
- 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
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 206010028980 Neoplasm Diseases 0.000 abstract description 9
- 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
- 230000005012 migration Effects 0.000 description 4
- 238000013508 migration Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000007943 implant Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 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
- 206010057362 Underdose Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000002490 cerebral effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000002360 preparation method 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, each channel is sequentially coaxial with the inner cavity of the first gun barrel in the rotating process of the rotary table, a plurality of accessory bins are arranged on the rotary table, each accessory bin corresponds to one channel, a firing pin penetrates through the second gun barrel, a gun head used for installing an implanting needle is arranged at the front end of the first gun barrel, and the firing pin is used for ejecting particles or accessories in the corresponding channel into the first gun barrel to manufacture a particle chain or ejecting the manufactured particle chain 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 the particle chain, greatly improves the efficiency and success rate of the operation, and is suitable for radioactive particle implantation treatment technologies 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
A radioactive particle implantation treatment technique, which is a technique for implanting a radioactive source (radioactive particles) into a tumor and treating the tumor by continuous and short-distance radiation emitted by the radioactive source. Prostate cancer particle implantation is now standard, and is widely used in the united states, with the application of treatment plans that allow consistent pre-and post-operative dosing. The particle implantation in China is applied to tumors of all parts of the whole body, obtains better curative effect, but has no standard operation formula and is difficult to repeat and popularize.
Whether the particle position is accurate during operation directly influences the dosage, and the application of the 3D printing template can enable the needle channel position to be accurate. However, the particles used in clinical practice in China are basically monomer structures, and in the operation, due to the special local anatomical structure of a patient and the limitation of the operation level of an operator, the single particles are difficult to be kept to be arranged in a straight line at equal intervals according to the requirements of the preoperative plan. Often resulting in particles that are agglomerated or spaced too far apart, resulting in uneven particle dose distribution. In order to meet the requirements of preoperative planning, the implantation of the particles is needed in the area with insufficient dosage, so that the implantation quantity of the particles is increased, the economic burden of a patient is increased, and the complication rate is increased. In addition, migration and migration often occur when individual particles are implanted. A plurality of reports about serious complications such as embolism to heart, lung, cerebral vessels and the like after the particles wander are seen internationally.
The application of the particle chain can completely solve the problems of insufficient tumor dose and complications caused by uneven distribution and migration of particles. The particle chain has been routinely used clinically in the united states. However, in China, the research on the particle chain is still few, and no particle chain finished product is on the market at present in China. In the united states, the problem of particle aggregation is addressed to some extent by the automated particle loading system of hospital. After the system is connected to the tail part of the implantation needle, the physicist controls the computer treatment planning system to make the particles into loose particle chains according to the preoperative plan, the particle intervals are controlled by spacers with different lengths, and then the loose particles are automatically implanted into the tumor. The system makes the particles into particle chains before the particles are implanted, so that inaccurate dose caused by particle aggregation is prevented to the maximum 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 particle migration.
Based on this, the particle chain manufacturing equipment of the U.S. BARD company can tightly connect the particles and the particle spacers together, and almost eliminate the possibility of the particles migrating. However, these products, due to degradation times of 150-. In addition, the manufacturing equipment of the particle chain of the BARD company is relatively heavy and is only used for manufacturing the particle chain, and the equipment does not have the function of implanting the particle chain. Other particle chains in the United states are manufactured when leaving factories, the particle intervals are fixed, doctors cannot adjust the particle distance according to specific conditions in the operation, and the application has a plurality of limitations.
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 the particle chain at the same time.
The invention is realized by the following steps: the utility model provides a device is makeed and implanted to radioactive particle chain, includes the mount the one end of mount is provided with first barrel the other end of mount is provided with the second barrel have the carousel coupling on the mount it has a plurality of passageway to open on the carousel, the inner chamber of first barrel with the inner chamber of second barrel is coaxial, just the carousel is in when revolving the rotatory different angle of axle on the mount, each the passageway respectively with the inner chamber of first barrel is coaxial be provided with a plurality of accessory storehouses on the carousel, every the accessory storehouse corresponds one the passageway, the accessory storehouse be used for to supplementary particle or accessory in the passageway it has worn the barrel firing pin to have connect in the second barrel the first front end is provided with the rifle head that is used for installing the implantation needle, the firing pin is used for carrying the interior preparation particle chain of barrel or accessory top implantation made particle chain top in the first barrel in the corresponding passageway into the first barrel Inside the needle.
The rotary table is provided with shaft connecting holes for connecting rotating shafts in a penetrating mode, the number of the channels is not less than 3, the channels are uniformly distributed around the shaft connecting holes, the rotary table is provided with a plurality of mounting grooves for mounting the accessory bins, each mounting groove corresponds to one channel, and the channels penetrate through the mounting grooves.
The accessory bin comprises a handheld portion, one end of the handheld portion is provided with a cartridge clip, a cartridge magazine is arranged in the cartridge clip, an ejector rod is arranged in the cartridge magazine and penetrates through the handheld portion, a spring is arranged in the handheld portion, the spring is sleeved on the ejector rod and used for pushing the ejector 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 magazine, the axis of the discharge hole is perpendicular to the axis of the cartridge magazine, and a clamping head is arranged at one end of the handheld portion, and extends out of the ejector rod.
The fixing frame is further provided with a fixing shaft, the fixing shaft is provided with a striker fixing device, the striker is installed on the striker fixing device, and the striker fixing device drives the striker to move back and forth.
The needle collision fixer comprises a fixer body, wherein a needle collision 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 and comprises an inner bearing and an outer bearing, the outer bearing is fixed on the fixer body, threads which are matched with each other are respectively arranged on the inner circumferential surface of the inner bearing and the circumferential surface of the 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 on one side of the bearing gear, a rocking handle is arranged at the center of the driving gear, and the rocking handle extends out of the fixer body; a fixing screw is screwed on the fixer body and 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, and is respectively suitable for an eight-light implantation needle and an MICK implantation needle.
The first is used for installing an eight-light implantation 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, an annular groove coaxial with the through hole is formed in the front end of the gun head body, threads are arranged on the outer side face of the annular groove, and the inner side face of the annular groove is an inclined plane.
The second is for mounting the 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 in the notch in an internal connection 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 comprises a front portion, a rear portion and a connecting portion, the front portion is fixed with the rear portion through the connecting portion, the front portion can just penetrate through the inner cavity of the first barrel and the passage, and the connecting portion can just penetrate through the inner cavity of the second barrel.
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 used for preventing the connecting part from being separated from the second barrel.
The particle chain with the required length and the particle interval is formed by arranging the rotary table between the first gun barrel and the second gun barrel, arranging a plurality of channels on the rotary table, inserting an accessory bin on each channel, storing particles or accessories in the accessory bins, enabling discharge holes of different accessory bins to correspond to the firing pins by rotating the rotary table, pushing the particles or the accessories in the accessory bins into the first gun tube through the firing pins, enabling the particles or the different accessories to enter the first gun tube in a certain sequence, and connecting the particles or the different accessories together under the pushing force of the firing pins. Then an implantation gun is installed, and the manufactured particle chain is pushed to enter an implantation needle through a firing pin and is implanted.
The invention has the functions of manufacturing and implanting the particle chain at the same time, is provided with two different gun heads, is compatible with two most common implanting needles in the market, and can quickly replace or install the implanting needles. The particle chain manufacturing speed is high, and the particle chain with the corresponding specification can be manufactured in real time according to the actual situation when an operation is carried out. When the particle chain is implanted, the relative position of the striker and the fixing frame is fixed through the striker fixing frame, the absolute position of the striker is fixed, and the fixing frame and the striker generate relative movement through swinging the handle, so that the particle chain implanted in the needle is implanted to the corresponding position when the implantation needle is pulled out of the patient body.
The invention has simple structure, convenient use and light weight, simultaneously has the functions of manufacturing and implanting the particle chain, greatly improves the efficiency and success rate of the operation, and is suitable for radioactive particle implantation treatment technologies of various tumors.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a sectional view of fig. 1.
Fig. 3 is an exploded view of the present invention.
Fig. 4 is a schematic diagram of the structure of the particle chain of 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 fitment silo of the present invention.
Fig. 8 is a schematic structural view of the striker holder of the present invention.
Fig. 9 is a view from a-a of fig. 8.
Fig. 10 is a schematic view of a first configuration of a lance tip according to the invention.
Fig. 11 is a schematic view of a second configuration of a lance tip according to the invention.
1. A fixed mount; 2. a first barrel; 3. a second barrel; 4. a turntable; 5. an accessory bin; 6. a striker; 7. a fixed shaft; 8. a needle impacting fixer; 9. a gun head; 10. a chain of particles; 2-1, lead glass tube; 2-2, stainless steel pipes; 2-3, an observation window; 3-1, fixing a nut; 4-1, axially connecting holes; 4-2, a channel; 4-3, mounting grooves; 4-4, a slide rail; 4-5, fixing the protrusion; 5-1, a handheld part; 5-2, cartridge clips; 5-3, a top rod; 5-4, a mandril spring; 5-5, a magazine; 5-6, a discharge hole; 5-7, clamping head; 6-1, front; 6-2, rear part; 6-3, a connecting part; 8-1, a fixer body; 8-2, a striker penetrating through the hole; 8-3, penetrating a hole in the fixed shaft; 8-4, fixing screws; 8-5, an outer bearing; 8-6, inner bearing; 8-7, bearing gear; 8-8, driving gear; 8-9, a rocking handle; 9-1, a gun head body; 9-2, through the hole; 9-3, a movable blocking plate; 9-4, an annular groove; 9-5, notches; 9-6, a 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 present invention includes a fixing frame 1, a first barrel 2 is disposed at one end of the fixing frame 1, a second barrel 3 is disposed at the other end of the fixing frame 1, a rotating plate 4 is coupled to the fixing frame 1, a plurality of passages 4-2 are formed on the rotating plate 4, an inner cavity of the first barrel 2 is coaxial with an inner cavity of the second barrel 3, and when the rotating plate 4 rotates around a rotating shaft at different angles on the fixing frame 1, each passage 4-2 is coaxial with the inner cavity of the first barrel 2, a plurality of accessory bins 5 are disposed on the rotating plate 4, each accessory bin 5 corresponds to one passage 4-2, the accessory bins 5 are used for supplementing particles or accessories into the passages 4-2, a firing pin 6 is connected in the second barrel 3 in a penetrating manner, a gun head 9 for installing an implanting needle is disposed at a front end of the first barrel 2, and the firing pin 6 is used for ejecting the particles or accessories in the corresponding passages 4-2 into the first barrel 2 to produce a particle chain 10 or the first barrel 2 The chain of particles 10 produced in the tube 2 is pushed into the implantation needle.
The invention relates to special equipment for manufacturing and implanting a particle chain 10, the structure of the particle chain 10 is shown in figure 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, only the first fitting 10-2 does not have radioactivity, specifically, the first fitting is a short rod 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 bell mouth, the bottom of the bell 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 fitting parts 10-2 are placed between the adjacent two second fitting parts 10-3 and connected in a chain shape, and the distance between the two radioactive particles 10-1 is adjusted by the first fitting parts 10-2 and the second fitting parts 10-3, thereby obtaining the desired particle chain 10.
As shown in fig. 5 and 6, the rotary table 4 is fan-shaped, an axial connection hole 4-1 for connecting a rotary shaft in a penetrating manner is formed in the lower portion of the fan-shaped rotary table 4, the rotary table 4 is connected to the fixed frame 1 through the rotary shaft in a shaft-rotating manner, the rotary table 4 can rotate around the rotary shaft, channels 4-2 penetrating through the rotary table 4 are formed in the disc surface of the rotary table 4, the number of the channels 4-2 is not less than 3, the channels 4-2 are uniformly distributed around the axial connection hole 4-1, a plurality of installation grooves 4-3 for installing the accessory bin 5 are formed in the rotary table 4, each installation groove 4-3 corresponds to one channel 4-2, and the channel 4-2 penetrates through the installation groove 4. The number of the channels 4-2 is preferably 4, wherein three channels 4-2 correspond to the radioactive seeds 10-1, the first fitting part 10-2 and the second fitting part 10-3, respectively, the fourth channel 4-2 does not correspond to the mounting groove 4-3, and the striker 6 directly passes through the mounting groove for implanting the particle chain 10. Two arc-shaped sliding rails 4-4 are arranged on the disc surface of the rotary disc 4, the two sliding rails 4-4 are respectively positioned at the inner side and the outer side of the channel 4-2, and the circle center of the sliding rail 4-4 is superposed with the axle center of the axle connecting hole 4-1. The position, corresponding to the channel 4-2, in the sliding rail 4-4 is provided with a fixing protrusion 4-5, the fixing protrusion 4-5 is a hemisphere or a cylinder with a hemispherical 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 pits in sequence in the sliding process, so that the axis of the channel 4-2 is superposed with the axis of the inner cavity of the first barrel 2 or the second 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 portion 5-1, a cartridge clip 5-2 is provided at one end of the hand-held portion 5-1, a magazine 5-5 is arranged in the cartridge clip 5-2, a mandril 5-3 is arranged in the magazine 5-5, the mandril 5-3 passes through the hand-held part 5-1, a mandril spring 5-4 is arranged in the hand-held part 5-1, the mandril spring 5-4 is sleeved on the mandril 5-3 and used for pushing the mandril 5-3 to move, a discharge hole 5-6 penetrating through the cartridge clip 5-2 is arranged on the cartridge clip 5-2, the discharge hole 5-6 is superposed with the end part of the cartridge magazine 5-5, the axis of the discharge hole 5-6 is vertical to the axis of the cartridge magazine 5-5, one end of the mandril 5-3 extending out of the hand-held part 5-1 is provided with a clamping head 5-7. The ejector rod spring 5-4 pushes the mounted accessories to move relative to the discharge hole 5-6 through the ejector rod 5-3, and after the accessories positioned at the discharge hole 5-6 are moved out, the adjacent accessories can automatically move to the discharge hole 5-6, so that the automatic loading of the accessories is realized. The size of the magazine 5-5 and the diameter of the discharge hole 5-6 are determined according to the type of the assembly parts, if the assembly part magazine 5 is used for storing the radioactive particles 10-1 or the first assembly part 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 hole 5-6 is slightly larger than the diameter of the radioactive particles 10-1; if the accessory magazine 5 is intended for storing second accessories 10-3, the magazine 5-5 needs to be thicker, slightly larger than the diameter of the second accessories 10-3, and the discharge opening 5-6 needs to have a diameter 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 holes 5-6 of the accessory bin 5 and the axes of the channels 4-2 coincide with each other, the firing pin 6 moves forward along the inner cavity of the second barrel 3, accessories in the discharge holes 5-6 are ejected out of the channels 4-2 of the rotary table 4 and the discharge holes 5-6 of the accessory bin 5 into the inner cavity of the first barrel 2, the type of the accessories ejected by the firing pin 6 at each time is controlled by rotating the rotary table 4, the ejected accessories are connected with the accessories in the first barrel 2, and due to the fact that the two ends of the second accessories 10-3 are in the shape of the horn mouths, the radioactive particles 10-1 or the first accessories 10-2 can be automatically aligned to enter the insertion holes, and therefore manufacturing of the needed particle chain 10 can be completed quickly.
As shown in fig. 1, 2 and 3, a fixing shaft 7 is further provided on the fixing frame 1, a striker fixing unit 8 is provided on the fixing shaft 7, and the striker 6 is mounted on the striker fixing unit 8 and can be moved forward and backward by the striker fixing unit 8. The number of the fixed shafts 7 is at least two, threads are arranged on one end surface of one fixed shaft 7, the needle striking fixer 8 is connected to the fixed shaft 7 through the threads, and the needle striking fixer 8 can move back and forth through thread transmission.
As shown in fig. 8 and 9, the striker holder 8 includes a holder body, on which a striker through hole 8-2 and at least two fixing shaft through holes 8-3 are opened, a bearing is arranged on one of the fixed shaft through holes 8-3, the bearing comprises an inner bearing 8-6 and an outer bearing 8-5, the outer bearing 8-5 is fixed on the fixer body, the inner circumferential surface of the inner bearing 8-6 and the circumferential surface of the fixed shaft 7 which passes through the inner bearing 8-6 are respectively provided with mutually matched screw threads, one end of the inner bearing 8-6 is provided with a bearing gear 8-7, one side of the bearing gear 8-7 is provided with a driving gear 8-8 meshed with the bearing gear, a rocking handle 8-9 is arranged at the center of the driving gear 8-8, and the rocking handle 8-9 extends out of the fixer body. The fixing screw 8-4 is screwed on the fixer body, and the striker 6 can be fixed in the striker through hole 8-2 by the fixing screw 8-4. When needed, the striker 6 is fixed on the striker fixing device 8 by rotating the fixing screw 8-4, the rocking handle 8-9 is shaken, the striker fixing device 8 and the fixed shaft 7 are relatively moved through gear transmission and screw transmission, and the striker 6 is moved relative to the second barrel 3 and the first barrel 2 because the fixed shaft 7 and the second barrel 3, the first barrel 2 and the like are fixed together.
As shown in figure 1, the first gun 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 arranged on the stainless steel tube 2-2. The conditions in the first gun barrel 2, such as whether the particle chain 10 is accurately connected, whether the number and the position of each accessory 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 comprises a front portion 6-1, a rear portion 6-2 and a connecting portion 6-3, the front portion 6-1 is fixed with the rear portion 6-2 through the connecting portion 6-3, the front portion 6-1 just passes through the inner cavity of the first barrel 2 and the passage 4-2, and the connecting portion 6-3 just passes through the inner cavity of the second barrel 3. The diameter of the front end of the inner cavity of the second barrel 3 is gradually reduced, a fixing nut 3-1 is arranged at the rear end of the second barrel 3, and the fixing nut 3-1 is used for preventing the connecting part 6-3 from being separated from the second barrel 3. After the firing pin 6 is mounted, the firing pin 6 can only move back and forth within the second barrel 3.
As shown in fig. 10 and 11, the tip 9 has two configurations, which are respectively suitable for an eight-tone implantation needle and a MICK implantation needle.
The first is used for installing an eight-light implantation needle: the gun head 9 comprises a gun head body, a through hole 9-2 penetrating through the gun head body is arranged on 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 arranged at the front end of the gun head body, threads are arranged on the outer side surface of the annular groove 9-4, and the inner side surface of the annular groove 9-4 is an inclined plane.
The second is for mounting the 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 in the notch 9-5 in an internal shaft mode, 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 return spring 9-7 is arranged between one end, extending out of the gun head body, of the lever 9-6 and the gun head body.
After the gun head 9 is installed at the end part of the first gun barrel 2, the movable blocking plate 9-3 is pressed down to block the through hole 9-2, so that particles or particle chains 10 cannot pass through, at the moment, the particle chains 10 are manufactured, and due to the blocking effect of the movable blocking plate 9-3 and the pushing effect of the firing pin 6, the radioactive particles 10-1, the first accessory 10-2 and the second accessory 10-3 which are discharged in a certain sequence are sequentially connected together to form the particle chains 10. The eight light implantation needle and the MICK implantation needle are two most commonly used implantation needles on the existing market. The inner surface of the joint of the eight-light implantation needle is a conical surface, the outer surface of the joint of the eight-light implantation needle is a cylindrical surface with threads, a first gun head 9 is used, the joint of the eight-light implantation needle is installed in an annular groove 9-4, the inner surface of the joint is in contact with an inclined plane on the inner side surface of the annular groove 9-4, the threads on the outer surface of the joint are matched with the threads on the outer side surface of the annular groove 9-4, therefore, the eight-light implantation needle is fixedly installed on the gun head 9, and the axis of the implantation needle coincides with the axes of the gun head 9. The joint of the MICK implanting needle is in a hollow cylindrical shape, the second gun head 9 is used, the lever 9-6 is pressed down, the joint is directly inserted into the through hole 9-2 of the gun head 9, the lever 9-6 is loosened, the connecting part of the implanting needle is clamped in the through hole 9-2 by the lever 9-6 under the action of the return spring 9-7, the MICK implanting needle is fixedly installed on the gun head 9, and the axis of the implanting needle coincides with the axes 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 barrel 2 may be threaded to facilitate replacement of the gun head 9.
When the kit is used, the radioactive particles 10-1, the first accessory 10-2 and the second accessory 10-3 are respectively arranged in the corresponding accessory bins 5, each accessory bin 5 is inserted into each mounting groove 4-3 of the rotary table 4, and no accessory bin 5 is arranged in the mounting groove 4-3. The gun head 9 is installed and the movable blocking plate 9-3 on the gun head 9 is pressed down, at the moment, the device only has the particle manufacturing function, the rotating disc 4 is sequentially rotated to different positions according to the specific situation of the patient, and the firing pin 6 is used for sequentially ejecting the radioactive seeds 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, and the ejected radioactive particles 10-1, the first fitting 10-2 or the second fitting 10-3 are pushed forwards, the radioactive particles 10-1 or the fitting at the forefront are tightly attached to the movable blocking plate 9-3, two ends of the radioactive particles 10-1 or the first fitting 10-2 are inserted into the insertion holes of the second fitting 10-3 to form the required particle chain 10, and whether the manufacturing of the particle chain 10 meets the requirements or not is observed through the observation window 2-3. After the particle chain 10 is manufactured, a matched implantation needle is installed on the gun head 9, the movable blocking switch is opened, the firing pin 6 is retracted to the tail end, the rotary disc 4 is rotated to the position of the channel 4-2 without the accessory bin 5, the particle chain 10 is pushed into the implantation needle by using the firing pin 6, and the front end of the particle chain 10 is aligned with the tip end of the implantation needle. The implantation needle is inserted into a tumor in a patient body, the needle head reaches a preset position, a fixing screw 8-4 is screwed, the striker 6 and the striker fixing device 8 are fixed together, the relative fixing of the striker 6 and the position of the patient is ensured, the handle of the striker fixing device 8 is shaken, the implantation needle and the part fixed together with the implantation needle slowly retreat until the implantation needle is completely withdrawn from the body of the patient, and the position between the striker 6 and the patient is always kept still, so the particle chain 10 at the end part of the striker 6 is also kept still with the patient, and the particle chain 10 is accurately implanted into the tumor.
Claims (10)
1. The device is characterized by comprising a fixing frame, wherein one end of the fixing frame is provided with a first barrel, the other end of the fixing frame is provided with a second barrel, the fixing frame is axially connected with a rotating disc, the rotating disc is provided with a plurality of channels, the inner cavity of the first barrel is coaxial with the inner cavity of the second barrel, the rotating disc rotates around a rotating shaft at different angles on the fixing frame, each channel is respectively coaxial with the inner cavity of the first barrel, the rotating disc is provided with a plurality of accessory bins, each accessory bin corresponds to one channel, each accessory bin is used for supplementing particles or accessories into the channel, a firing pin penetrates through the second barrel, the front end of the first barrel is provided with a gun head for installing an implanting needle, and the firing pin is used for ejecting the particles or the accessories in the corresponding channel into the first barrel to fabricate a particle chain or fabricate the first barrel The particle chain is pushed into the implantation needle.
2. The apparatus for manufacturing and implanting a chain of radioactive particles according to claim 1, wherein the turntable is provided with at least 3 coupling holes for coupling the rotating shaft, the passages are uniformly distributed around the coupling holes, the turntable is provided with a plurality of mounting slots for mounting the accessory chamber, each mounting slot corresponds to one passage, and the passages pass through the mounting slots.
3. The device for manufacturing and implanting a radioactive particle chain according to claim 1, wherein the accessory bin comprises a handheld portion, a cartridge clip is arranged at one end of the handheld portion, a cartridge magazine is arranged in the cartridge clip, a push rod is arranged in the cartridge magazine and penetrates through the handheld portion, a spring is arranged in the handheld portion and is 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 and is overlapped with the end portion of the cartridge magazine, the axis of the discharge hole is perpendicular to the axis of the cartridge magazine, and a chuck is arranged at one end of the push rod, which extends out of the handheld portion.
4. The apparatus for manufacturing and implanting a radioactive particle chain according to claim 1, wherein a fixing shaft is further provided on the fixing frame, a striker holder is provided on the fixing shaft, and the striker is mounted on the striker holder and is driven by the striker holder to move forward and backward.
5. The apparatus for manufacturing and implanting a radioactive particle chain according to claim 4, wherein the striker holder comprises a holder body, the holder body is provided with a striker through hole and at least two fixing shaft through holes, one of the fixing shaft through holes is provided with a bearing, the bearing comprises an inner bearing and an outer bearing, the outer bearing is fixed on the holder body, the inner circumferential surface of the inner bearing and the circumferential surface of the fixing shaft penetrating through the inner bearing are respectively provided with mutually matched threads, one end of the inner bearing is provided with a bearing gear, one side of the bearing gear is provided with a driving gear engaged with the bearing gear, the center of the driving gear is provided with a rocking handle, and the rocking handle extends out of the holder body; a fixing screw is screwed on the fixer body and used for fixing the firing pin in the firing pin through hole.
6. The chain of radioactive seeds manufacturing and implanting device of claim 1, wherein the first gun barrel comprises a lead glass tube and a stainless steel tube sleeved outside the lead glass tube, and a viewing window is opened on the stainless steel tube.
7. The radioactive particle chain manufacturing and implanting device according to claim 1, wherein 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 surface of the annular groove, and the inner side surface of the annular groove is an inclined surface.
8. The radioactive particle chain manufacturing and implanting device according to claim 1, wherein 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 in the notch, 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.
9. A radioactive particle chain manufacturing and implanting device according to claim 1, wherein the firing pin comprises a front portion, a rear portion and a connecting portion, the front portion is fixed to the rear portion by the connecting portion, the front portion is just capable of passing through the inner cavity of the first barrel and the passage, and the connecting portion is just capable of passing through the inner cavity of the second barrel.
10. A radioactive particle chain manufacturing and implanting device according to claim 9, wherein the inner cavity of the second barrel is tapered to a smaller diameter at a front end thereof, and a fixing nut is provided at a rear end of the second barrel to prevent the connecting portion from being removed from 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 true CN110585583A (en) | 2019-12-20 |
| CN110585583B CN110585583B (en) | 2024-03-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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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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| CN110585583B (en) | 2024-03-01 |
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