Radioactive source implanting system based on carding feeding mechanism

Abstract

The invention discloses a radioactive source implanting system based on a carding feeding mechanism, and the system comprises a first push rod driving mechanism which drives a first push rod to move back and forth along a push rod output channel, so as to push a radioactive source in front of the first push rod to a target position; the carding and feeding mechanism is used for carding and arranging the scattered radioactive sources under the action of external force and outputting the scattered radioactive sources into the radioactive source control assembly one by one; and the radioactive source material control assembly controls a specified number of radioactive sources to enter the push rod output channel and is arranged in front of the first push rod. Through the cooperation of the carding feeding mechanism and the radioactive source material control assembly, the implanting equipment does not need to manually fill a cartridge holder, the preparation process is simplified, and radiation damage caused in the filling process is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a radioactive source implantation system based on a combing and feeding mechanism. Background Art

[0002] Radioactive particle implantation surgery is a local radiotherapy procedure in which many radioactive particles are implanted directly into the tumor through a puncture needle. This surgery has a wide range of indications, including lung cancer, liver cancer, breast cancer, prostate cancer, etc., and it has small incisions, little bleeding, and relatively few surgical complications, but it can effectively inhibit tumor growth.

[0003] The basic process of this operation is to first take a preoperative CT scan, determine the puncture path and particle layout plan in the TPS system, and then insert many puncture needles into the tumor according to the plan. This process can be completed with the help of a puncture guide template to ensure that the spacing and direction between each needle are consistent with the preoperative plan. After confirming through CT that all puncture needles have reached the target position, the doctor then pushes multiple particles into the tumor according to the preoperative plan through the channel established by the puncture needle to complete the operation.

[0004] However, this type of operation currently takes a long time, and the doctor needs to be in close contact with the particles during the implantation process, which causes great radiation damage, which limits the application and promotion of this type of operation. Therefore, a particle implantation robot system came into being, such as the particle implantation surgical robot proposed in Chinese patent CN201910714054.7. The robot system installs an automatic particle implantation device at the end of the robot, which can complete puncture and particle implantation with high precision. However, the particle implantation device is always rigidly connected to the puncture needle during the operation, so the particle implantation is performed immediately after the puncture is completed. This changes the process of traditional manual surgery and requires CT verification to be performed immediately after each puncture, which greatly increases the number of CT scans for patients, exposing them to greater radiation. In addition, the device cannot control the specified number of radioactive sources for implantation. Moreover, the device needs to load the radioactive source into the magazine in advance when implanting, which increases the radiation damage to medical staff. Summary of the invention

[0005] The purpose of the present invention is to provide a radioactive source implantation system based on a combing and feeding mechanism to solve the existing technical defects and unattainable technical requirements.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A radioactive source implantation system based on a combing and feeding mechanism comprises: a first push rod driving mechanism, which can drive the first push rod to move forward and backward along a push rod output channel, thereby pushing the radioactive source in front of the first push rod to a target position; a combing and feeding mechanism, which can comb and arrange scattered radioactive sources under the action of external force and output them one by one into a radioactive source control component; and a radioactive source control component, which can control a specified number of radioactive sources to enter the push rod output channel and be arranged in front of the first push rod.

[0008] Preferably, the combing and feeding mechanism comprises a vibration plate, and the radiation sources are arranged and enter into the radiation source control assembly under the vibration action of the vibration plate.

[0009] Preferably, the combing and feeding mechanism comprises a first feeder and a feeding and combing assembly, wherein the first feeder is used to store radioactive sources, and the feeding and combing assembly allows the radioactive sources in the first feeder to enter the radioactive source control assembly one by one.

[0010] Preferably, the first feeder is trumpet-shaped or V-groove-shaped and has a discharge port at the bottom, and the discharge port is connected to the radiation source control component via a combing output channel. After the radiation source is output from the discharge port, it enters the radiation source control component through the combing output channel, or the discharge port is aligned with the entrance of the radiation source control component, and after the radiation source is output from the discharge port, it directly falls into the radiation source control component.

[0011] Preferably, the feed combing assembly comprises a vibrating feed combing structure and / or a blowing feed assembly;

[0012] The vibrating feeding combing structure drives the entire first feeder to vibrate and comb the scattered radioactive sources; the blowing feeding component blows gas from the top or side of the first feeder, so that the gas is output from the discharge port at the bottom of the first feeder to comb the scattered radioactive sources.

[0013] Preferably, the vibration feeding and combing structure adopts a reciprocating vibration feeding and combing structure, and the first feeder is arranged on the base body so as to float, rotate or slide; the first feeder is connected to a first vibration motor, and when the first vibration motor is started, the first vibration motor drives the first feeder to vibrate relative to the base body; or, the reciprocating vibration feeding and combing structure is a first reciprocating motion mechanism arranged between the first feeder and the base body, and the first reciprocating motion mechanism is one or more combinations of a crank-connecting rod mechanism, a cam mechanism, a gear rack mechanism, a belt transmission mechanism, and an electromagnetic reciprocating drive structure, and when the first reciprocating motion mechanism is started, the first reciprocating motion mechanism drives the first feeder to vibrate reciprocatingly relative to the base body.

[0014] Preferably, the vibration feeding and combing structure adopts a beating vibration feeding and combing structure, a beating mechanism is provided on the base, and a first beating part is provided on the beating mechanism; the beating mechanism is a first reciprocating beating mechanism, which drives the first beating part to reciprocate through one or more combinations of a crank-connecting rod mechanism, a cam mechanism, a gear rack mechanism, a belt transmission mechanism, and an electromagnetic reciprocating drive structure to beat the entire combing and feeding mechanism or the first feeder; or the beating mechanism is a first rotating beating mechanism, which drives the first beating part to rotate to cyclically beat the entire combing and feeding mechanism or the first feeder.

[0015] Preferably, the radiation source material control assembly comprises a radiation source material control channel and a material control structure, and the material control structure adopts multiple sets of stop mechanisms or friction material control mechanisms or visual high-speed material control mechanisms;

[0016] When the material control structure adopts multiple sets of stop mechanisms, the multiple sets of stop mechanisms are arranged in the radiation source control channel, and the multiple sets of stop mechanisms respectively control the blocking and release of the radiation source to achieve quantitative feeding of the radiation source; the stop mechanism is one or a combination of a valve mechanism, a clamping claw mechanism, a rotary clamping mechanism, and a side clamping mechanism.

[0017] Preferably, the push rod output channel includes a first push rod output channel and a second push rod output channel, the first push rod driving mechanism is connected to the first push rod output channel, the outlet of the first push rod output channel and the outlet of the radiation source control channel are respectively connected to the second push rod output channel through a reversing mechanism or a bifurcated tube, the radiation source control assembly controls a specified number of radiation sources to enter the second push rod output channel, and the first push rod pushes the radiation source in the second push rod output channel to the target position.

[0018] Preferably, it also includes a first motion platform and a connecting piece, one ends of multiple delivery catheters are respectively installed on the connecting piece, the other ends of the multiple delivery catheters are respectively connected to the puncture needles, one end of the push rod output channel and the connecting piece are respectively installed at both ends of the first motion platform, and the first motion platform is used to realize the relative movement of one end of the push rod output channel and the connecting piece in space, so that one end of the push rod output channel is connected to any delivery catheter on the connecting piece to form a delivery channel for the radiation source, thereby realizing multi-channel implantation.

[0019] The beneficial effects of the present invention are:

[0020] 1. Through the cooperation of the combing feeding mechanism and the radioactive source control component, a specified number of radioactive sources can be delivered into the push rod output channel and arranged in front of the first push rod, so that the number of radioactive sources implanted each time can be controlled.

[0021] 2. By combining the feeding mechanism and the radiation source control assembly, the implant device does not need manual loading of the magazine, which simplifies the preparation process and avoids radiation damage caused during the loading process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of Example 1;

[0023] Figure 2 This is a schematic diagram of the internal structure of the radiation protection chassis of Example 1;

[0024] Figure 3 is a schematic structural diagram of a first push rod driving device in Example 1;

[0025] Figure 4 is a cross-sectional view of the first push rod driving device of Example 1;

[0026] Figure 5 Schematic diagram of the structure of the radiation source combing device of Example 1;

[0027] Figure 6 It is a side view of the radiation source combing device of Example 1;

[0028] Figure 7 This is a schematic structural diagram of the first switching component of Example 1;

[0029] Figure 8 is a cross-sectional view of a first switching assembly in Example 1;

[0030] Fig. 9 is a cross-sectional view of a second switching assembly in Example 1;

[0031] Fig.10 This is a schematic diagram of the structure of the radiation source material control assembly of Example 1;

[0032] Fig.11 It is a top view of the radiation source material control assembly of Example 1;

[0033] Fig.12 This is a schematic diagram of the internal structure of the radiation source material control assembly of Example 1;

[0034] Fig.13 This is a schematic diagram of the overall structure of Example 2;

[0035] Fig.14 Schematic diagram of the bifurcated tube structure of Example 2;

[0036] Fig.15 This is a schematic diagram of the overall structure of Example 3;

[0037] Fig.16 This is a schematic diagram of the internal structure of the shielding shell of Example 3;

[0038] Fig.17 This is a schematic diagram of the shielding shell structure of Example 3;

[0039] Fig.18 FIG. 3 is a diagram showing the installation process of the shielding shell of Example 3;

[0040] Fig.19 This is a schematic diagram of the shielding shell installation completion of Example 3. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Example 1

[0043] like Figures 1 to 12 A radioactive source implantation system based on a combing and feeding mechanism comprises a movable workbench 241100, a radiation protection chassis 241101, a first push rod driving device 241102, a first push rod output channel 241103, a combing and feeding mechanism 241104, a first reversing component 241105, a second reversing component 241106, a radioactive source material control component 241107, a front top channel 241108, a return top channel 241109, a combing output channel 241110, a second push rod output channel 241111, an implantation component 241112, a first moving platform 241113, a connecting piece 241114, a conveying channel 241115 and a radioactive source material control channel 241116.

[0044] The radiation proof chassis 241101 is installed on a movable workbench 241100. The radiation proof chassis 241101 is a box-type structure assembled by box panels or a frame structure assembled by frame panels. The box panels or frame panels are both radiation proof panels. The radiation proof chassis is provided with a radiation proof door, and the radiation proof door is provided with radiation proof glass. The radiation proof chassis is also provided with a lighting lamp.

[0045] The implant component 241112 is installed on the first motion platform 241113, and the connecting piece 241114 is installed on the side of the first motion platform 241113. A plurality of connecting holes are arranged in a circumferential array on the connecting piece 241114, and each group of connecting holes includes a first connecting hole and a second through hole arranged adjacent to each other. The first connecting hole is connected to the delivery channel 241115 through a quick-connect joint (the delivery channel 241115 of this embodiment adopts a delivery catheter). The first motion platform 241113 can drive the implant component 241112 to move so that the docking joint of the implant component 241112 can dock with any group of connecting holes or the tail end of the delivery channel 241115, thereby realizing the conduction between the second push rod output channel 241111 and any group of delivery channels 241115. The delivery channel 241115 includes an inner tube and an outer tube. The outer tube is placed outside the inner sleeve. The front end of the outer tube is against a supporting component that remains relatively still with the biological tissue, or the front end of the outer tube is directly against the epidermis of the biological body 2411106. The biological body 2411106 lies on the operating table 241117. One end of the inner tube is directly or indirectly connected to the puncture needle, and the other end of the inner tube is connected to the first connecting hole of the connecting piece through a quick connector.

[0046] The device also includes a needle-pulling drive mechanism, which is used to drive the inner tube and the outer tube to move relative to each other, so as to control the position of the needle tip of the puncture needle relative to the biological tissue, thereby controlling the implantation depth of the radioactive source, and to pull out the needle while the radioactive source is implanted, so that the radioactive source will penetrate into the biological tissue when it is pushed out, and even does not move relative to the biological tissue, thereby stably staying at the target implantation position in the biological tissue. The specific form of the relative movement between the inner tube and the outer tube is one of the following forms:

[0047] Fixing the rear end of the inner tube and driving the outer tube to move toward the side of the biological tissue;

[0048] or fixing the rear end of the outer tube to drive the inner tube to move away from the biological tissue;

[0049] Alternatively, both the outer tube and the inner tube are driven to move, but relative sliding motion occurs between the two, and the inner tube moves relative to the outer tube toward the side away from the biological tissue.

[0050] The needle extraction drive mechanism can be directly driven, directly pushed and pulled, clamped, frictionally driven or meshed driven.

[0051] When the inner tube is fixed and the needle removal drive mechanism adopts a push-drive method, the needle removal drive mechanism applies a thrust to the end face of the outer tube or to the step surface or connection portion provided on the outer tube, thereby driving the outer tube to move toward one side of the biological tissue. The needle removal drive mechanism is provided on the first motion platform 241113 and is located at the lower part of the implant component 241112.

[0052] The needle extraction drive mechanism includes a push-pull motion component and a push-pull component. The push-pull component is arranged on the push-pull motion component and can move along a certain trajectory under the drive of the push-pull motion component. The push-pull component can directly apply a thrust or a pull to the rear end surface of the inner tube or the outer tube or to the step surface or the connection part arranged on the inner tube or the outer tube, so as to directly push / pull the inner tube and the outer tube to perform relative sliding motion through the cooperation between the push-pull motion component and the push-pull component. The push-pull motion component adopts linear motion or arc rotation.

[0053] The first connecting hole is used for fixing and installing the inner tube. The push-pull assembly includes a push-pull rod. The push-pull rod can be driven to pass through the second through hole to push the outer tube to move relative to the inner tube.

[0054] The push-pull assembly also includes a push-pull drive element and a transmission structure. The push-pull drive element drives the push-pull rod to move through the transmission structure. The push-pull drive element is a push-pull motor, a pneumatic or hydraulic push rod; the transmission structure is one or a combination of a gear rack transmission structure, a worm transmission structure, a ratchet transmission structure, a belt transmission structure, and a screw nut transmission structure;

[0055] When the transmission structure is a gear rack transmission structure, the push-pull rod is a rack, the gear in the gear rack transmission structure cooperates with the push-pull rod and can drive the push-pull rod to move axially along the second through hole, and the push-pull rod passes through the second through hole to push the outer tube to move relative to the inner tube.

[0056] The first push rod driving device 241102, the combing and feeding mechanism 241104, the first reversing component 241105, the second reversing component 241106, the radiation source material control component 241107 and the connecting piece 241114 are respectively installed in the radiation protection chassis, the implant component 241112 is installed on the first motion platform 241113, the connecting piece 241114 is installed on the side of the first motion platform 241113, the first reversing component 241105 is located below the first push rod driving device 241102, the radiation source material control component 241107 is located below the combing and feeding mechanism 241104, and the second reversing component 241106 is located below the first reversing component 241105 and the radiation source material control component 241107.

[0057] The lower outlet of the combing and feeding mechanism 241104 is connected to the combing output channel 241110, and the lower end of the combing output channel 241110 is connected to the radioactive source material control channel 241116, and the lower end of the radioactive source material control channel 241116 is connected to the second reversing component 241106. When the second reversing component 241106 controls the second push rod output channel 241111 to be connected to the radioactive source material control channel 241116, the radioactive source material control channel 241116 can release a set number of radioactive sources into the second push rod output channel 241111.

[0058] The first push rod driving mechanism of the first push rod driving device 241102 can drive the first push rod to reciprocate along the front top channel 241108 or the return top channel 241109 to push or comb the radioactive source. The first push rod driving device 241102 is provided with a pressure quick release assembly, which includes a clamping cam 24110201, a push rod 24110202, a connecting handle 24110203, a first spring 24110204 and a moving seat 24110205. The first push rod driving device 241102 drives the first push rod to move forward and backward through a friction wheel group. One of the friction wheels is installed on the housing, and the other friction wheel 24110206 is installed on the moving seat 24110205. The clamping cam 24110201 pushes the push rod 24110202, and the push rod 24110203 pushes the push rod 24110204.

[0059] 24110202 exerts a certain thrust on the moving seat 24110205 by squeezing the first spring 24110204, so that the friction wheel 24110206 on the moving seat 24110205 presses the other friction wheel 24110206, and clamps the first push rod between the two friction wheels 24110206. When it is necessary to load and unload the first push rod, the operator pulls the connecting handle 24110203 to drive the two clamping cams 24110201 to rotate and loosen the push rod 24110202. At this time, the first spring 24110204 releases the push on the moving seat 24110205, and the two friction wheels 24110206 release the clamping of the first push rod, which is convenient for the operator to load and unload the first push rod.

[0060] The first reversing assembly 241105 can realize that the first push rod output channel 241103 at the lower end of the first push rod driving device 241102 is connected with the front top channel 241108 or the return top channel 241109 respectively. When the first push rod output channel 241103 is connected with the front top channel 241108, the first push rod enters the front top channel 241108 from the first push rod output channel 241103 and pushes the radiation source forward along the second push rod output channel 241111; when the first push rod output channel 241103 is connected with the return top channel 241109 At this time, the first push rod enters the return-to-top channel 241109 from the first push rod output channel 241103 and advances along the return-to-top channel 241109 and then reverses to enter the radiation source control channel 241116 and the combing output channel 241110, and pushes the radiation source stuck in the combing output channel 241110 or at the outlet end of the combing feeding mechanism 241104 from bottom to top, and combs the radiation source in the combing output channel 241110 or at the outlet end of the combing feeding mechanism 241104, so that the radiation source can smoothly enter the combing output channel 241110.

[0061] Alternatively, when all particles are implanted, some particles may remain in the radiation source control component 241107. At this time, the first push rod output channel 241103 can be connected to the return-to-top channel 241109, and then the radiation source control channel 241116 can be connected to the return-to-top channel 241109. Then, the first push rod enters the return-to-top channel 241109 from the first push rod output channel 241103 and advances along the return-to-top channel 241109 and then reverses to enter the radiation source control channel 241116, and pushes all the particles retained in the radiation source control component 241107 back to the combing and feeding mechanism 241104 to avoid radiation damage.

[0062] As an alternative, the combing and feeding mechanism 241104 may also be separately equipped with a push rod driving mechanism, which can comb the radioactive sources in the combing and feeding mechanism 241104 so that the radioactive sources inside the combing and feeding mechanism 241104 can smoothly enter the combing output channel 241110.

[0063] Alternatively, the second reversing component 241106 connects the radiation source control component 241107 to the recovery channel, and directly discharges all particles retained in the radiation source control component 241107 into the recovery channel.

[0064] The combing and feeding mechanism 241104 can vibrate and output the radioactive source. The combing and feeding mechanism 241104 is a bell mouth or a V-shaped groove or a vibration plate. The radioactive source is automatically arranged under its own gravity and vibration, and moves down along the combing output channel 241110. Alternatively, the combing and feeding mechanism 241104 is connected to a blowing mechanism for blowing, and the blowing effect is coordinated to enable the radioactive source to fall better. Preferably, this embodiment adopts a bell mouth structure.

[0065] The radiation source material control assembly 241107 is located at the lower part of the combing output channel 241110. The radiation source material control assembly 241107 can control the radiation sources in the combing output channel 241110 to fall into the radiation source material control channel 241116 and the second reversing assembly 241106 one by one. The radiation source material control assembly 241107 adopts two sets of upper and lower stop mechanisms or friction wheel material control mechanisms or visual high-speed material control mechanisms.

[0066] When the radioactive source material control assembly 241107 adopts two sets of upper and lower stop mechanisms, the two sets of upper and lower stop mechanisms are one or a combination of valve mechanisms, clamping mechanisms, rotating clamping mechanisms or side clamping mechanisms. The lower stop mechanism first closes the combing output channel 241110, and the upper stop mechanism opens to allow the radioactive source to enter between the upper and lower stop mechanisms. At this time, the combing output channel 241110 is first closed by the upper stop mechanism, and then the lower stop mechanism is opened. At this time, a radioactive source between the upper and lower stop mechanisms falls into the second push rod output channel 241111 (or an air pump or push rod driving mechanism is additionally provided to push the radioactive source into the second push rod output channel 241111 by gas or a push rod).

[0067] When the radioactive source material control assembly 241107 adopts a friction wheel material control mechanism, friction wheels are provided on both sides of the radioactive source material control channel. The radioactive source in the radioactive source material control channel is clamped by the friction wheels on both sides, and the friction wheels are driven to rotate to drive the radioactive source to move for discharging.

[0068] When the radioactive source control component 241107 adopts a visual high-speed control mechanism, it includes a visual camera and a set of quick stopping mechanisms. The visual camera monitors the number of radioactive sources passing through the radioactive source control channel. The stopping mechanism quickly controls the switch of the radioactive source control channel and stops excess particles in time, releasing only the required number of particles.

[0069] The second reversing component 241106 can connect the radiation source control channel 241116 with the second push rod output channel 241111, so that the radiation source in the radiation source control channel 241116 is introduced into the second push rod output channel 241111; then the second reversing component 241106 can connect the front top channel 241108 with the second push rod output channel 241111, and the first push rod enters the second push rod output channel 241111 from the front top channel 241108 under the drive of the first push rod driving mechanism, and pushes the radiation source in the second push rod output channel 241111 forward along the conveying channel 241115 until it is output from the front of the puncture needle.

[0070] Alternatively, the radiation source material control channel 241116 and the front top channel 241108 are simultaneously connected to the second push rod output channel 241111 through a three-pronged tube, or the output ports of the radiation source material control channel 241116 and the front top channel 241108 are simultaneously aligned with a bell-shaped mouth, and the other end of the bell-shaped mouth is connected to the second push rod output channel 241111, and after the radiation source is output from the radiation source material control channel 241116, it enters the second push rod output channel 241111 under the guidance of the three-pronged tube and the bell-shaped mouth, and then after the first push rod extends from the front top channel 241108, it also enters the second push rod output channel 241111 under the guidance of the three-pronged tube and the bell-shaped mouth, and pushes the radiation source previously set in the second push rod output channel 241111 to move forward.

[0071] If after the implantation, there are radioactive sources remaining in the combing output channel 241110 or the radioactive source control component 241107, or the radioactive source at the outlet end of the combing feeding mechanism 241104 is stuck or clogged, the second reversing component 241106 can make the return channel 241109 connected with the radioactive source control channel 241116, and push the radioactive source at the outlet end of the combing output channel 241110 or the radioactive source control component 241107 or the combing feeding mechanism 241104 in the reverse direction to the first feeder 24100401 of the combing feeding mechanism 241104 through the first push rod, so as to realize the recovery of the radioactive source and the dredging of the pipeline;

[0072] Alternatively, the radioactive source material control assembly 241107 and the combing and feeding mechanism 241104 may be completely reversed, and the retained radioactive source may be returned to the first feeder 24100401 of the combing and feeding mechanism 241104 by gravity (or in combination with vibration). Alternatively, a reverse blowing mechanism may be used, and a ventilating portion may be provided in the first feeder 24100401 of the combing and feeding mechanism 241104. The reverse blowing mechanism may blow air in the reverse direction to the radioactive source material control channel 241116, thereby blowing the radioactive source back into the first feeder 24100401 of the combing and feeding mechanism 241104.

[0073] like Figure 5and Figure 6 The combing and feeding mechanism 241104 includes a first feeder 24100401 and a vibrating feeding and combing structure for driving the first feeder to reciprocate up and down. The first feeder 24100401 is a bell-mouth structure. The upper part of the first feeder 24100401 is buckled or screwed with an upper cover 24100402. The lower part of the first feeder 24100401 is connected to a combing output channel 241110. The vibrating feeding and combing structure includes a feeding drive motor 2 4100403 and a transmission assembly, the feeding drive motor 24100403 is mounted on a feeding drive motor fixing plate 24100404, the feeding drive motor fixing plate 24100404 is mounted on a longitudinal partition in the radiation protection chassis through a support column 24100405, the main shaft of the feeding drive motor 24100403 passes through the feeding drive motor fixing plate 24100404, and the main shaft of the feeding drive motor 24100403 is connected to the transmission assembly, The transmission assembly is a crank-connecting rod slider mechanism, and the transmission assembly includes a crank 24100406, a first connecting rod 24100407 and a second slider seat 24100408. The crank 24100406 is mounted on the main shaft of the feeding drive motor 24100403. The crank 24100406 is hingedly connected to the first connecting rod 24100407, and the first connecting rod 24100407 is hingedly connected to the second slider seat 24100408. A vertical slide rail 24100409 is installed on the motor fixing plate 24100404, and a slider 24110410 is installed on the vertical slide rail 24100409. The back of the second slider seat 24100408 is fixedly connected to the slider 24110410, and the front side of the second slider seat 24100408 is fixedly connected to a connecting seat 24100411. The first feeder 24100401 is detachably installed on the connecting seat 24100411.

[0074] The transmission assembly can also be replaced by a curved slide mechanism, a cam spring mechanism, etc. Or the vibration feeding combing structure adopts a vibration motor or an electromagnetic suction principle to realize the up and down reciprocating vibration of the first feeder by changing the direction of the magnetic field: or the vibration feeding combing structure adopts a slapping vibration mechanism, a slapping mechanism is provided on the base, a slapping part is provided on the slapping mechanism, and the slapping mechanism is a reciprocating slapping mechanism, and the slapping part is driven to reciprocate through one or more combinations of a crank connecting rod mechanism, a cam mechanism, a gear rack mechanism, a belt transmission mechanism, and an electromagnetic reciprocating drive structure to slap the entire combing and feeding mechanism 241104, or the slapping mechanism is a rotating slapping mechanism, and the entire combing and feeding mechanism 241104 is cyclically slapped by driving the slapping part to rotate; or the vibration feeding combing structure adopts a reciprocating motion mechanism, and the reciprocating motion mechanism is a crank connecting rod mechanism, a cam mechanism, a gear rack mechanism, a belt transmission mechanism, and an electromagnetic reciprocating drive structure. When the reciprocating motion mechanism is started, the entire combing and feeding mechanism 241104 is driven to vibrate relative to the base.

[0075] The first reversing assembly 241105 and the second reversing assembly 241106 have the same structure, which includes a reversing mounting seat 2410030, a reversing fixed seat 2410031, a reversing movable seat 2410032 and a reversing driving mechanism for driving the reversing movable seat 2410032 to move left and right relative to the reversing fixed seat 2410031. The reversing mounting seat 2410030 is fixed on the longitudinal partition in the radiation protection chassis, and the reversing fixed seat 2410031 is provided with at least one set of reversing holes. The reversing movable seat 2410032 is provided with a reversing hole. 0032 is provided with at least one group of alignment holes, the reversing fixed seat 2410031 is fixed on the front side of the reversing mounting seat 2410030, and the reversing fixed seat 2410031 is provided with a limiting protrusion for limiting the reversing movable seat 2410032 when it moves left and right to the extreme position. The reversing movable seat 2410032 moves left and right on the reversing fixed seat 2410031 under the drive of the reversing drive mechanism and under the guidance of the reversing guide assembly, so that any one of the alignment holes can be connected with any one of the reversing holes respectively.

[0076] The reversing drive mechanism includes a driving push rod 2410033 and a connecting block 2410034. The driving push rod 2410033 is connected to the connecting block 2410034, and the connecting block is connected to the reversing moving seat 2410032. The reversing guide assembly includes a guide rail 2410035 and a guide slider 2410036 matched with the guide rail. The guide rail is installed on the reversing fixed seat 2410031, and the guide slider is installed at the bottom of the reversing moving seat 2410032.

[0077] Alternatively, the reversing guide assembly may also use a rotating mechanism to replace the driving push rod 2410033 to change the hole position.

[0078] The reversing drive mechanism may also be replaced by a gear rack transmission mechanism, a crank connecting rod mechanism, a screw nut mechanism, etc.

[0079] The reversing movable seat 2410032 of the first reversing assembly 241105 is provided with a group of first alignment holes 24100501, and the reversing fixed seat 2410031 is provided with two groups of reversing holes, namely the first reversing hole a24100502 and the first reversing hole b24100503. The first push rod output channel 241103 is installed on the first alignment hole 24100501, and the front top channel 241108 is installed on the first reversing hole a24100502. The return-to-top channel 241109 is installed on the first reversing hole b24100503. The reversing drive mechanism can drive the reversing movable seat 2410032 to move relative to the reversing fixed seat so that the first alignment hole 24100501 can be respectively connected with the first reversing hole a24100502 or the first reversing hole b24100503, so that the first push rod output channel 241103 can be respectively connected with the front top channel 241108 or the return-to-top channel 241109.

[0080] When the first alignment hole 24100501 is connected with the first reversing hole a24100502, the first push rod output channel 241103 is connected with the front top channel 241108, and the first push rod can move forward in the first push rod output channel 241103 and the front top channel 241108 under the drive of the first push rod driving mechanism; when the first alignment hole 24100501 is connected with the first reversing hole b24100503, the first push rod output channel 241103 is connected with the return-to-top channel 241109, and the first push rod can move forward in the first push rod output channel 241103 and the return-to-top channel 241109 under the drive of the first push rod driving mechanism.

[0081] The reversing movable seat 2410032 of the second reversing component 241106 is provided with two groups of alignment holes, namely the second alignment hole a24100601 and the second alignment hole b24100602, and the reversing fixed seat 2410031 is provided with two groups of reversing holes, namely the second reversing hole a24100603 and the second reversing hole b24100604, the lower end of the front top channel 241108 is installed on the second alignment hole a24100601, the lower end of the radiation source material control channel 241116 is installed on the second alignment hole b24100602, the lower end of the return top channel 241109 is installed on the second reversing hole b24100604, and the entrance end of the second push rod output channel 241111 is installed on the second reversing hole a24100603.

[0082] The reversing drive mechanism can drive the reversing movable seat 2410032 to move relative to the reversing fixed seat, so that the second alignment hole a24100601 is connected with the second reversing hole a24100603, and the front top channel 241108 is connected with the second push rod output channel 241111.

[0083] The reversing drive mechanism can drive the reversing movable seat 2410032 to move relative to the reversing fixed seat, so that the second alignment hole b24100602 can be connected with the second reversing hole a24100603 or the second reversing hole b24100604, so that the radiation source control channel 241116 can be connected with the second push rod output channel 241111 or the return channel 241109, so as to realize the output of the radiation source or the first push rod reversely dredges the radiation source control channel 241116 or the radiation source control component 241107 or the combing output channel 241110 or the combing feeding mechanism 241104. Alternatively, it is used to recover the retained particles.

[0084] The radioactive source material control assembly 241107 includes a material control fixing seat 24100701, a positioning guide block 24100702 mounted on the material control fixing seat 24100701 and capable of positioning and guiding the radioactive source material control channel 241116, at least two groups of material control push blocks 24100703 mounted on the positioning guide block 24100702, a light shield 24100704 movably mounted on the material control fixing seat 24100701, and at least two groups of material control driving mechanisms 24100705, each group of material control driving mechanisms 24100705 Corresponding to a group of material control push blocks 24100703, the material control driving mechanism 24100705 can drive the material control push blocks 24100703 to approach or move away from the radiation source material control channel 241116, so as to realize the squeezing control or blocking control of the radiation source material control channel 241116. An elastic telescopic structure is arranged in the material control push blocks 24100703. When the radiation source is squeezed, the elastic telescopic structure can be compressed inwardly, so as to avoid the deformation of the radiation source by rigid squeezing. The material control fixing seat 24100701 is floatingly mounted on the longitudinal partition in the radiation protection chassis.

[0085] A set of material control support columns 24100707 are connected to the four corners of the material control fixing seat 24100701 through tension springs 24100706. The four sets of material control support columns 24100707 are fixedly mounted on the longitudinal partitions in the radiation protection chassis. The back of the material control fixing seat 24100701 is connected to a motor fixing plate 24100709 through a connecting column 24100708. The motor fixing plate 24100709 is equipped with a material control vibration motor 2410 0710, the eccentric wheel 24100711 is installed on the output shaft of the material control vibration motor 24100710, and the material control vibration motor 24100710 drives the eccentric wheel to rotate. Since the material control fixed seat is elastically floatingly connected to the material control support column, the entire material control fixed seat will be driven to vibrate when the eccentric wheel rotates. During the vibration of the material control fixed seat, the radiation source can be smoothly dropped under the dual effects of gravity and vibration, thereby avoiding particles from being stuck in the radiation source material control channel 241116.

[0086] The vibration mechanism composed of the material control vibration motor 24100710 and the eccentric wheel can also be replaced by a reciprocating vibration mechanism or a beating vibration mechanism.

[0087] A guide groove 24100712 is provided on the positioning guide block 24100702, and a radiation source material control channel 241116 passes through the guide groove 24100712. A first cam 24100713 is provided on the output shaft of the material control driving mechanism. The light shield 24100704 can be fastened or opened and closed on the material control fixing seat 24100701. The first cam 24100713 is located at the material control fixing seat 24100701. 0701 and the light shield 24100704, the radiation source material control channel 241116 is limited between the positioning guide block 24100702, the material control push block 24100703 and the light shield 24100704, and multiple groups of material control drive mechanisms are arranged alternately on both sides of the radiation source material control channel 241116 from top to bottom, and the radiation source material control channel 241116 passes through the multiple groups of material control push blocks 24100703 in turn.

[0088] Two groups of trigger switches 24100714 are respectively installed on the circumference of the cam corresponding to each group of material control driving mechanism on the material control fixed seat 24100701. A trigger part 24100715 is provided on the side of the first cam 24100713. When the raised part of the first cam pushes or separates from the material control pushing block 24100703 during the rotation of the first cam 24100713, the trigger part can contact the corresponding trigger switch, so as to feedback the material control situation in the radiation source material control channel 241116.

[0089] When the material control driving mechanism drives the cam to rotate, the material control push block 24100703 can be pushed toward the radioactive source material control channel 241116 through the convex part of the first cam, thereby squeezing the radioactive source in the radioactive source material control channel 241116, so that the radioactive source stops falling to realize material control. When material is required to be dropped, the material control driving mechanism at the second-to-last position drives the first cam to rotate so that the convex part of the first cam pushes the material control push block 24100703 toward the radioactive source material control channel 241116, thereby squeezing the penultimate radioactive source in the radioactive source material control channel 241116, and preventing the penultimate radioactive source from falling together, and then the lowest material control driving mechanism drives the first cam to rotate so that the convex part of the first cam is separated from the material control push block 24100703, so that the material control push block 24100703 is reset, thereby moving away from the radioactive source material control channel 241116, releasing the channel, and making the lowest radioactive source fall under the action of gravity and vibration to realize material feeding. The part of the radiation source material control channel 241116 squeezed by the material control push block 24100703 is an elastic hose that can be squeezed and deformed, so that the material can be controlled through the hose. After the first cam releases the material control push block 24100703, the elasticity of the hose itself is used to reset the material control push block 24100703 and open the channel.

[0090] The light shield 24100704 is equipped with a visual inspection module capable of detecting whether particles have fallen, and counting or appearance inspection of the falling particles. The visual inspection module includes a light shield, a camera and a light source. The light shield is installed at the front end of the camera lens, and the light source is installed at the side of the camera. The camera and the light source can be aligned with the radioactive source control channel 241116 (when a hose is used, the hose is made of transparent material, and when a hard channel is used, the hard channel is covered with a transparent cover plate), and count and count them. When the visual inspection module detects that there is no radioactive source in the control drive mechanism, the control drive mechanism will no longer operate, and will wait for the combing and feeding mechanism 241104 to provide a radioactive source so that it falls into the control drive mechanism before operating.

[0091] The steps of particle implantation are as follows:

[0092] The conveying channel 241115 is installed on the connecting hole, and the first moving platform 241113 can drive the implant component 241112 to move so that the docking head of the implant component 241112 can dock with any group of connecting holes or the tail end of the conveying channel 241115, thereby realizing the conduction between the second push rod output channel 241111 and any group of conveying channels 241115; the reversing drive mechanism of the first reversing component 241105 can drive the reversing moving seat 2410032 to move relative to the reversing fixed seat, so that the first reversing hole a24100502 can be connected with the alignment hole 24100501, thereby enabling the first push rod output channel 241003 to be connected with the front top channel 241108.

[0093] The radiation source control channel 241116 is controlled to be connected with the second push rod output channel 241111 through the second reversing component, and the combing feeding mechanism 241104 vibrates the radiation source to output. The radiation source falls under its own gravity and vibration and moves down along the combing output channel 241110. Then, the radiation source is released one by one through the radiation source control component 241107, so that one or more radiation sources fall into the second push rod output channel 241111. In this process, the radiation sources can be counted, and an activity sensor can be arranged near the radiation source control component 241107 to detect its activity, and the radiation sources whose activity does not meet the requirements can be recovered.

[0094] The reversing drive mechanism of the second reversing component 241106 can drive the reversing movable seat 2410032 to move relative to the reversing fixed seat, so that the second alignment hole a24100601 is connected with the second reversing hole a24100603, and the front top channel 241108 is connected with the second push rod output channel 241111.

[0095] The first push rod moves along the first push rod output channel 241003, the front top channel 241108 and the second push rod output channel 241111 in sequence, pushing the radiation source forward through the docking joint of the implant component 241112 into the delivery channel 241115 and delivering it to the lesion location. At the same time, the push-pull motion component drives the push-pull rod through the second through hole to push the end face of the outer tube or the step surface or connecting part provided on the outer tube, so that the inner tube and the outer tube make relative sliding motion, so that the puncture needle is pulled out.

[0096] When all the radioactive sources have been implanted, there may be radioactive sources remaining in the combing output channel 241110 and / or the radioactive source control component 241107, which need to be recovered into the first feeder 24100401, and then the entire first feeder 24100401 is brought back for processing (or the radioactive source control component 241107 is set at the exit of the first feeder 24100401, and a radiation protection component is also provided on the outside, so the entire first feeder 24100401 and the radioactive source control component 241107 can be recovered together).

[0097] Or it is detected by taking a photo with a camera that there are no particles in the radioactive source control component 241107, or no particles are output after the bottom stop mechanism of the radioactive source control component 241107 is opened, which means that there are no particles in the combing and feeding mechanism 241104, or the radioactive source in the combing output channel 241110 or the combing and feeding mechanism 241104 or at the outlet end of the combing and feeding mechanism 241104 is stuck or blocked, and it is necessary to perform a radioactive source unblocking operation;

[0098] The operating steps for recovering or unblocking the radiation source are as follows: the reversing drive mechanism of the first reversing component 241105 can drive the reversing movable seat 2410032 to move relative to the reversing fixed seat so that the first reversing hole b24100503 can be connected with the first alignment hole 24100501, thereby enabling the first push rod output channel 241103 to be connected with the return-to-top channel 241109, and then the reversing drive mechanism of the second reversing component 241106 can drive the reversing movable seat 2410032 to move relative to the reversing fixed seat, and the second alignment hole b24100602 can be connected with the second reversing hole b24100604, so that the radiation source material control channel 241116 can be connected with the return-to-top channel 241109, thereby enabling the first push rod to reversely unblock the combing output channel 241110. Finally, the first push rod enters the return-to-top channel 241109 from the first push rod output channel and advances along the return-to-top channel 241109, then reverses into the radioactive source control channel 241116 and the combing output channel 241110, and pushes the radioactive source that is stuck in the combing output channel 241110 or at the outlet end of the combing feeding mechanism 241104 from bottom to top, all the way to the first feeder 24100401, to achieve radioactive source recovery, or to clear the blocked radioactive source in the combing output channel 241110 or at the outlet end of the combing feeding mechanism 241104.

[0099] Alternatively, when the implantation is completed and there are still remaining radioactive sources in the radioactive source control channel 241107 and the combing output channel 241110, the operator removes the radioactive source control channel 241116 from the second reversing component 241106, and the operator can manually insert a push rod from the bottom of the radioactive source control channel 241116 to push the retained radioactive source back into the first feeder 24100401 of the combing feeding mechanism 241104.

[0100] Alternatively, when the operator removes the radiation source control channel 241116 from the second reversing assembly 241106, a residual material recovery container for recycling is installed at the output end at the bottom of the radiation source control channel 241116, and then the radiation source control channel 241116 opens the channel, and the combing and feeding mechanism 241104 continues to comb and release the radiation source, and the retained radiation source and the remaining radiation source in the combing and feeding mechanism 241104 are all discharged into the residual material recovery container through airflow or vibration control, and the residual material recovery container has the same structure as the first feeder. When the radiation source needs to be replanted later, the residual material recovery container can be installed at the installation position of the first feeder, and then the implantation process is repeated to achieve the replantation of the radiation source.

[0101] Example 2

[0102] like Fig.13 and Fig.14As shown, the combing and feeding mechanism includes a vibration plate, and the radiation sources are arranged and enter the radiation source control component under the vibration action of the vibration plate.

[0103] The first push rod driving device 241102 is installed on the main machine 103325307, the forked pipe A103325310 is connected to the first push rod driving device 241102, the forked pipe B103325311 is connected to the vibration plate 103325301, the forked pipe A103325310 and the forked pipe B103325311 are connected through the dual-channel pipe main pipe 103325303, the dual-channel pipe main pipe 103325303 is connected to the first motion platform 241113, the first motion platform 241113 is installed on the main machine 103325307, the connecting piece 241114 is installed on the first motion platform 241113, and the conveying channel 241115 is connected to the connecting piece 241114.

[0104] By controlling the vibration plate 103325301, the required number of particles 103325308 are arranged in order and sent into the bifurcated tube B 103325311, and the particles 103325308 slide along the bifurcated tube B 103325311 into the dual-channel tube main tube 103325303, or a photoelectric switch or camera (not shown in the figure) is added to the bifurcated tube B to accurately identify the number of particles, and the excess particles are blocked by a blocking mechanism (not shown in the figure). , to avoid sliding into the dual-channel pipe main tube 103325303 again, at this time the first push rod driving device 241102 drives the first push rod 103325309 to move forward along the bifurcated tube A103325310 into the dual-channel pipe main tube 103325303, thereby pushing the previous particle 103325308 to continue to move forward in the dual-channel pipe main tube 103325303, when the particle 103325308 reaches the first moving platform 241113. The first moving platform 241113 will dock with the corresponding hole on the connecting piece 241114 where the target delivery channel 241115 is installed. At this time, the first push rod 103325309 continues to push the particle 103325308 to move forward into the delivery channel 241115. Finally, the first push rod 103325309 pushes the particle 103325308 to reach the puncture needle. Since the front end of the puncture needle is provided with a resistance part, the particle 103325308 cannot automatically slide out from the front end of the puncture needle, but only when the first push rod 1033 The resistance part is an elastic variable diameter part, and the inner diameter of the elastic variable diameter part is smaller than the outer diameter of the particle. Only when the particle is subjected to a thrust, the elastic variable diameter part will open to allow the particle to pass.

[0105] Example 3

[0106] This embodiment refers to the working principle of Embodiment 1, and the difference from Embodiment 1 is that:

[0107] like Figure 15-19 , the return channel and the first reversing component are not set, and a residual material recovery container is also connected to the bottom of the second reversing component 241106. The residual material recovery container adopts the second feeder 2410202, and the second feeder 2410202 is connected to the second reversing component 241106 through the residual material recovery channel 2410203. The structure of the second feeder 2410202 is the same as the first feeder structure of the combing feeding mechanism 241104, and the two can be replaced with each other. The first push rod output channel 241103 connected to the first push rod driving device 241102 is directly connected to the second reversing component 241106.

[0108] A shielding shell 241101 is arranged outside the combing output channel 241110 and the radiation source control component 241107, and an openable door body 2411011 is arranged on the shielding shell 241101, and the door body 2411011 blocks the notch on the shielding shell 241101. The thickness of the shielding shell 241101 and the door body 2411011 is greater than or equal to 3 mm, and they are made of steel or lead material to isolate radiation. Magnets are arranged on the door body 2411011 and the shielding shell 241101, and the magnets attract each other to prevent the door body 241101 from 11 is opened by mistake. Of course, other door lock structures can also be used. One side of the door body 2411011 is hinged to the shielding shell 241101, and the other side of the door body 2411011 is provided with a handle 2411012. The handle 2411012 is convenient for the operator to hold and open the door body 2411011. After the operator opens the door body 2411011, the combing output channel 241015 is pulled out along the notch with its head end facing downward, and then the first feeder is inverted so that its discharge port faces upward, and the head end of the combing output channel 241110 is connected to the discharge port of the first feeder. In this way, particles can be prevented from leaking out of the discharge port during the connection process. Alternatively, a valve assembly can be added to the discharge port, and the discharge port channel will be opened only when the valve is opened.

[0109] Then, the first feeder is turned back and installed on the connecting seat. In the above process, in order to prevent particles from leaking out of the discharge port, a valve assembly can be added to the discharge port, and the discharge port channel can be opened only when the valve is opened, or the first push rod driving mechanism can extend the first push rod all the way to the top of the combing output channel 241110 through the switching of the channel by coordinating the switching of the channel with the reversing assembly, thereby blocking the channel of the combing output channel 241110.

[0110] Alternatively, a blocking rod is inserted into the first feeder, and the lower end of the blocking rod is inserted into the discharge port of the first feeder to block the discharge port of the first feeder to prevent the radiation source from leaking out. The upper end of the blocking rod extends from the through hole on the cover above the first feeder. After the operator opens the door body 2411011, the combing output channel 241110 is pulled out along the slot, and then the combing output channel 241110 is connected to the discharge port. Then, the first feeder and the combing output channel 241110 are put into the shielding shell 241101 along the slot again, and the door body 2411011 is closed. Then, the operator pulls out the blocking rod from the through hole on the cover, thereby opening the discharge port of the first feeder to stop or release the radiation source. At this time, even if a radiation source falls from the discharge port of the first feeder, its radiation damage will be shielded by the shielding shell 241101.

[0111] The through hole on the cover is a through hole of the air passage joint. Handles 2411013 are provided on both sides of the shielding shell 241101, and the handles 2411013 are convenient for operators to hold and install the shielding shell 241101 on the base. Mounting plates 2411014 are provided on both sides of the shielding shell 241101, and mounting holes 2411015 are provided on the mounting plates 2411014. Bolts 2411016 are installed on the base, and a gap is left between the bolt head of the bolt 2411016 and the base. The diameter of the mounting hole 2411015 is greater than The bolt head diameter of bolt 2411016 is such that the bolt head of bolt 2411016 can directly pass through mounting hole 2411015. A slot 2411017 is provided above mounting hole 2411015, and the width of slot 2411017 is smaller than the diameter of the bolt head of bolt 2411016. The operator holds handle 2411013 and moves shielding shell 241101 toward the base, and controls the bolt head of bolt 2411016 to pass through mounting hole 2411015 (such as Fig.18 ), and then the shielding shell 241101 moves downward under its own gravity, so that the bolt 2411016 is inserted into the slot 2411017 (such as Fig.19 ), at this time, the shielding shell 241101 is prevented from falling off by the bolt head of the bolt 2411016. Alternatively, the shielding shell 241101 is connected to the base body by other quick-release structures.

[0112] During the radioactive source implantation process, when the particle activity detector 241017 detects that the radioactive source meets the requirements and the appearance inspection is also qualified, the second reversing component 241106 drives the radioactive source control channel 241116 to connect with the second push rod output channel 241111, so that the radioactive source in the radioactive source control channel 241116 is introduced into the second push rod output channel 241111 (under the action of gravity, or under the combined action of gravity and airflow), and the second reversing component 241106 then drives the first push rod output channel 241003 to connect with the second push rod output channel 241111, and the first push rod driving mechanism drives the first push rod to push the radioactive source through the implantation component 241112 and the conveying channel into the target object to achieve implantation.

[0113] At this time, when the implantation is completed, if there are still remaining radioactive sources in the radioactive source control component 241107 and the combing output channel 241110, the second reversing component 241106 drives the radioactive source control channel 241116 to connect with the residual material recovery channel 2410203, so that the radioactive source control component 241107 releases the radioactive sources in sequence (if there are still remaining radioactive sources in the combing feeding mechanism 241104 and the radioactive sources need to be completely emptied, the combing feeding mechanism 241104 also completely empties the materials), allowing them to enter the second feeder 2410202. Since the second feeder 2410202 has exactly the same structure as the first feeder, they can replace each other and the recovered radioactive sources can be reused for loading.

[0114] When the particle activity detector 241017 detects that the radioactive source does not meet the requirements, the second feeder 2410202 is replaced with a particle recovery bucket (not shown in the figure), so that the radioactive source that does not meet the requirements falls directly into the particle recovery bucket under the action of gas and / or gravity and vibration, thereby realizing particle recovery. In the process of replacing the second feeder 2410202 with the particle recovery bucket, since the radiation source control component 241107 and the combing output channel 241110 are both provided with radiation shields, there is no radiation damage to the operator.

[0115] In addition, an exhaust nozzle needs to be inserted into the air channel joint on the upper cover 24101401 of the above-mentioned second feeder 2410202 so that a stable exhaust channel can be established when the air flow passes through the radiation source control component 241107 to release the radiation source into the second feeder 2410202 in sequence.

[0116] In addition, the second feeder 2410202 can also adopt the same structural design as the first feeder, and an encryption chip is also provided thereon. When the second feeder 2410202 is connected to the substrate, the encryption chip is docked with the chip reading and writing port on the substrate to read and write information in the encryption chip. The encryption chip stores information such as the production time, activity, and operator of the radioactive source in the second feeder 2410202, so as to facilitate traceability of the entire process.

[0117] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0118] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A radioactive source implantation system based on a combing and feeding mechanism, characterized in that: include: A first push rod driving mechanism, capable of driving the first push rod to move forward and backward along the push rod output channel, thereby pushing the radiation source in front of the first push rod to a target position; The combing and feeding mechanism can comb and arrange the scattered radioactive sources under the action of external force and output them one by one into the radioactive source control component; The radioactive source control component can control a specified number of radioactive sources to enter the push rod output channel and is arranged in front of the first push rod.

2. A radioactive source implantation system based on a combing and feeding mechanism according to claim 1, characterized in that: The combing and feeding mechanism comprises a vibration plate, and the radiation sources are arranged and enter into the radiation source control component under the vibration action of the vibration plate.

3. A radioactive source implantation system based on a combing and feeding mechanism according to claim 1, characterized in that: The combing and feeding mechanism comprises a first feeder and a feeding combing component. The first feeder is used to store radioactive sources. The feeding combing component allows the radioactive sources in the first feeder to enter the radioactive source control component one by one.

4. A radioactive source implantation system based on a combing and feeding mechanism according to claim 3, characterized in that: The first feeder is trumpet-shaped or V-groove-shaped and has a discharge port at the bottom. The discharge port is connected to the radiation source control component through a combing output channel. After the radiation source is output from the discharge port, it enters the radiation source control component through the combing output channel, or the discharge port is aligned with the entrance of the radiation source control component. After the radiation source is output from the discharge port, it directly falls into the radiation source control component.

5. A radioactive source implantation system based on a combing and feeding mechanism according to claim 3, characterized in that: The feed combing assembly includes a vibrating feed combing structure and / or a blowing feed assembly; The vibrating feeding combing structure drives the entire first feeder to vibrate and comb the scattered radioactive sources; the blowing feeding component blows gas from the top or side of the first feeder, so that the gas is output from the discharge port at the bottom of the first feeder to comb the scattered radioactive sources.

6. A radioactive source implantation system based on a combing and feeding mechanism according to claim 5, characterized in that: The vibration feeding and combing structure adopts a reciprocating vibration feeding and combing structure, and the first feeder is arranged on the base body so as to float, rotate or slide; the first feeder is connected to a first vibration motor, and when the first vibration motor is started, the first vibration motor drives the first feeder to vibrate relative to the base body; or, the reciprocating vibration feeding and combing structure is a first reciprocating motion mechanism arranged between the first feeder and the base body, and the first reciprocating motion mechanism is one or more combinations of a crank-connecting rod mechanism, a cam mechanism, a gear rack mechanism, a belt transmission mechanism, and an electromagnetic reciprocating drive structure, and when the first reciprocating motion mechanism is started, the first reciprocating motion mechanism drives the first feeder to vibrate reciprocatingly relative to the base body.

7. A radioactive source implantation system based on a combing and feeding mechanism according to claim 5, characterized in that: The vibration feeding and combing structure adopts a beating vibration feeding and combing structure, a beating mechanism is provided on the base, and a first beating part is provided on the beating mechanism; the beating mechanism is a first reciprocating beating mechanism, which drives the first beating part to reciprocate through one or more combinations of a crank connecting rod mechanism, a cam mechanism, a gear rack mechanism, a belt transmission mechanism, and an electromagnetic reciprocating drive structure to beat the entire combing and feeding mechanism or the first feeder; or the beating mechanism is a first rotating beating mechanism, which drives the first beating part to rotate to cyclically beat the entire combing and feeding mechanism or the first feeder.

8. The radioactive source implantation system based on the combing and feeding mechanism according to claim 1, characterized in that: The radioactive source material control assembly comprises a radioactive source material control channel and a material control structure, wherein the material control structure adopts multiple sets of stop mechanisms or friction material control mechanisms or visual high-speed material control mechanisms; When the material control structure adopts multiple sets of stop mechanisms, the multiple sets of stop mechanisms are arranged in the radiation source control channel, and the multiple sets of stop mechanisms respectively control the blocking and release of the radiation source to achieve quantitative feeding of the radiation source; the stop mechanism is one or a combination of a valve mechanism, a clamping claw mechanism, a rotary clamping mechanism, and a side clamping mechanism.

9. A radioactive source implantation system based on a combing and feeding mechanism according to claim 8, characterized in that: The push rod output channel includes a first push rod output channel and a second push rod output channel, the first push rod driving mechanism is connected to the first push rod output channel, the outlet of the first push rod output channel and the outlet of the radiation source control channel are respectively connected to the second push rod output channel through a reversing mechanism or a bifurcated tube, the radiation source control component controls a specified number of radiation sources to enter the second push rod output channel, and the first push rod pushes the radiation source in the second push rod output channel to the target position.

10. A radioactive source implantation system based on a combing and feeding mechanism according to claim 1, characterized in that: It also includes a first motion platform and a connecting piece, one ends of multiple delivery catheters are respectively installed on the connecting piece, the other ends of the multiple delivery catheters are respectively connected to the puncture needles, one end of the push rod output channel and the connecting piece are respectively installed at both ends of the first motion platform, and the first motion platform is used to realize the relative movement of one end of the push rod output channel and the connecting piece in space, so that one end of the push rod output channel is connected to any delivery catheter on the connecting piece to form a delivery channel for the radiation source, thereby realizing multi-channel implantation.

Images