Connecting piece with array type locking function and radioactive source implanting device thereof

Abstract

The utility model discloses a connecting piece with an array type locking function and a radioactive source implanting device thereof, a connecting piece body is provided with a plurality of connecting holes, each connecting hole can be connected with a quick connector of a conveying catheter, the connecting piece body is provided with an array type locking mechanism capable of locking and positioning each quick connector at the same time, and the array type locking mechanism is connected with the array type locking mechanism. The array type locking mechanism is provided with locking parts corresponding to the positions of the connecting holes, and in an unlocked state, the relative positions of all the locking parts and the connecting holes allow the quick connectors to be inserted into the connecting holes in a penetrating manner; when locking is carried out, all the locking parts are driven by the locking driving mechanism to rotate or translate, the relative positions of the locking parts and the connecting holes change, openings are formed in the side faces of the quick connectors, the locking parts rotate or translate to enter the openings, and the quick connectors of all the conveying conduits are locked and positioned at the same time. The quick connectors of the conveying conduits can be locked and positioned at the same time, the locking and mounting efficiency of the conveying conduits is improved, and the locking time is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially a kind of connecting piece with array locking function and its radioactive source implantation device. BACKGROUND

[0002] Radioactive particle implantation surgery is by puncture, many radioactive particles are directly implanted into tumor by puncture needle to do a local radiotherapy, the operation indication of this operation is very wide, including lung cancer, liver cancer, breast cancer, prostate cancer etc., and it has small wound, less bleeding, and relatively less surgical complications, but it can effectively inhibit the growth of tumor.

[0003] The basic process of this operation is, first, preoperative CT is shot, and puncture path and particle arrangement scheme are determined in TPS system, then according to planning, many puncture needles are inserted into tumor. This process can be completed by puncture guide template, so as to ensure that the spacing and direction between each needle remain consistent with preoperative planning. After confirming by CT that all puncture needles reach target position, the doctor pushes multiple particles into tumor according to preoperative planning through the channel established by puncture needle, and completes the operation.

[0004] But currently, the operation time is long, and the doctor needs to be in close contact with the particle during implantation, which causes great radiation damage, which limits the application and promotion of this type of operation. Therefore, particle implantation robot system emerges as the times require.

[0005] For example, a kind of multi-channel radioactive source implantation machine is proposed in Chinese patent CN202310036388.X, including main body, first motion platform, connecting piece, push rod output channel, push rod, push rod driving mechanism and radioactive source supply part, push rod driving mechanism is communicated with push rod output channel on the main body, push rod driving mechanism is used to drive push rod to move back and forth along push rod output channel, radioactive source supply part is used to set particle or particle chain at the front end of push rod, particle chain is strip-shaped object containing radioactive substance, push rod output channel is rigid structure or flexible bendable structure, connecting piece is distributed with multiple connecting holes, the other end of push rod output channel and connecting piece are fixed at the two ends of first motion platform respectively, first motion platform is used to control the relative position of the other end of push rod output channel and connecting piece in space, so that the other end of push rod output channel and one end of different connecting holes on connecting piece are connected, and particle or particle chain is output from different connecting holes, realizing multi-channel implantation.

[0006] However, in the above technical solution, multiple delivery catheters need to be installed on the connecting piece, and the operator needs to lock each delivery catheter on the connecting piece one by one. If locking is done one by one, the efficiency is low, and a lot of time will be spent. UTILITY MODEL CONTENT

[0007] The utility model discloses a kind of connecting pieces with array locking function and radioactive source implantation device, to solve the technical defects of existing technology and cannot reach technical requirement.

[0008] To achieve the above object, the utility model provides the following technical scheme:

[0009] A kind of connecting piece with array locking function, including connecting piece body, several connecting holes are equipped on connecting piece body, each connecting hole can connect the quick connector of delivery catheter, array locking mechanism that can simultaneously lock and position each quick connector is equipped on connecting piece body, array locking mechanism is correspondingly equipped with locking portion in the position of each connecting hole, in the state of not locking, the relative position of all locking portion and connecting hole allows quick connector to be inserted into connecting hole through;When locking, all locking portion is rotated or translated by locking drive mechanism, the relative position of locking portion and connecting hole changes, opening is equipped on the side surface of quick connector, locking portion is rotated or translated into opening, realizes simultaneously locking and positioning each quick connector of delivery catheter.

[0010] As preferred, the connecting piece body is rotated or translated and is equipped with clamping plate, the locking drive mechanism is rotated or translated by first transmission mechanism and drives clamping plate, the locking portion is directly arranged on clamping plate, or the locking portion is transmissionally connected with clamping plate by second transmission mechanism, when clamping plate rotates, clamping plate drives locking portion to rotate or translate into or exit opening, the first transmission mechanism is cam mechanism or gear mechanism or belt transmission mechanism, the second transmission mechanism is connecting rod mechanism or helical groove cam mechanism.

[0011] As preferred, the locking portion is clamping hole or clamping tongue arranged in annular or fan array on clamping plate, in the state of not locking, all clamping holes are arranged through connecting hole, or all clamping tongues are staggered with connecting hole, at this time, connecting hole can be inserted into the quick connector of delivery catheter;When locking, clamping plate is rotated around the center of annular or fan array by locking drive mechanism, part of clamping hole is clamped into opening, or clamping tongue is clamped into opening, and the quick connector of delivery catheter is locked and positioned on connecting piece body.

[0012] As preferred, the locking portion is clamping hole or clamping tongue arranged in rectangular or fan or annular array on clamping plate, in the state of not locking, all clamping holes are arranged through connecting hole, or all clamping tongues are staggered with connecting hole, at this time, connecting hole can be inserted into the quick connector of delivery catheter;When locking, clamping plate is translated by locking drive mechanism, part of clamping hole is clamped into opening, or clamping tongue is translated and clamped into opening, and the quick connector of delivery catheter is locked and positioned on connecting piece body.

[0013] As preferred, the array locking mechanism has two locking gears, when the locking driving mechanism is in the first gear, the locking driving mechanism drives the locking part to rotate a first angle or to translate a first distance, at this time the locking part is clamped into the opening of the quick connector of the delivery conduit, and the locking part does not directly or indirectly press the needle core in the quick connector; when the locking driving mechanism is in the second gear, the locking driving mechanism drives the locking part to rotate a second angle or to translate a second distance, the locking part rotates or translates into the opening and directly or indirectly presses the needle core in the quick connector, realizing the locking positioning of the quick connector of each delivery conduit and the needle core inside it at the same time.

[0014] As preferred, the array locking mechanism has two locking gears, and the locking driving mechanism adopts a cam structure, when the locking driving mechanism drives the cam to rotate to an angle of the first gear, the cam drives the clamping plate to rotate a first angle or to translate a first distance, at this time the locking part is clamped into the opening of the quick connector of the delivery conduit, and the locking part does not directly or indirectly press the needle core in the quick connector; when the locking driving mechanism cam rotates to an angle of the second gear, the cam drives the clamping plate to rotate a second angle or to translate a second distance, the locking part rotates or translates into the opening and directly or indirectly presses the needle core in the quick connector, realizing the locking positioning of the quick connector of each delivery conduit and the needle core inside it at the same time.

[0015] As preferred, the array locking mechanism includes clamping blocks arranged in a fan shape or a ring shape on the connector body, each clamping block can move in translation or rotation relative to the connector body, the locking part is a clamping hole and a clamping tongue provided on each clamping block, each clamping block is in transmission connection with the clamping plate through a second transmission mechanism, when the clamping plate rotates, the clamping plate drives all clamping blocks to rotate or move in translation, in the state of not locking, the clamping holes of all clamping blocks are throughly arranged with the connecting holes, or the clamping tongues of all clamping blocks are staggered with the connecting holes, at this time the connecting holes can be inserted through the quick connector of the delivery conduit; when locking, part of the clamping holes are clamped into the opening, or the clamping tongues are clamped into the opening, locking and positioning the quick connector of the delivery conduit on the connector body.

[0016] As preferred, a limiting structure is arranged between the quick connector and the connector body, the limiting structure is a limiting protrusion arranged on the quick connector or the connector body, and a limiting groove is arranged on the connector body or the quick connector corresponding to the limiting protrusion, the quick connector is provided with an elastic body at the opening, the elastic body is close to the needle core inside, the limiting protrusion cooperates with the limiting groove, which can prevent the quick connector installed on the connector body from rotating, and align the clamping plate with the elastic body;

[0017] Alternatively, the opening of the side surface of the quick connector is a ring-shaped opening, and the clamping plate can enter the ring-shaped opening by rotating or translating when the quick connector is inserted into the connecting hole on the connecting member at different angles, and the needle core in the quick connector is directly or indirectly pressed to simultaneously lock and position the quick connectors of the delivery conduits.

[0018] A radioactive source implanting device comprises a connecting member, a moving platform, a push rod output channel, a push rod and a push rod driving mechanism, the push rod output channel is used for guiding the push rod to move forward and backward, the connecting member is connected with a plurality of delivery conduits, the moving platform is used for realizing the relative movement of one end of the push rod output channel and the connecting member in space, so that the push rod output channel and the quick connector of any delivery conduit on the connecting member are communicated to form a delivery channel of a radioactive source, the push rod driving mechanism is communicated with the push rod output channel, and the push rod driving mechanism drives the push rod to move forward and backward along the push rod output channel, so that the radioactive source arranged in front of the push rod is pushed to a target position along the delivery conduit.

[0019] Preferably, the delivery conduit is provided with a needle core, the needle core extends along the delivery conduit and fills the space in the puncture needle connected with the front end of the delivery conduit.

[0020] The rear end of the needle core extends a needle core tail from the delivery conduit, the needle core tail is provided with a stop step, the stop step abuts against the inlet end surface of the delivery conduit to limit the position.

[0021] The beneficial effects of the utility model are as follows:

[0022] 1. The quick connectors of the delivery conduits are simultaneously locked and positioned, the efficiency of locking and installing the plurality of delivery conduits is improved, and the locking time is saved.

[0023] 2. The locking driving mechanism drives the clamping plate in the connecting member body to rotate by a first angle or translate by a first distance, controls the clamping plate to be clamped into the opening of the quick connector of the delivery conduit, locks the quick connector, the locking driving mechanism continues to drive the clamping plate to rotate by a second angle or translate by a second distance, the clamping plate rotates or translates into the opening and directly or indirectly presses the needle core in the quick connector, and the quick connectors of the delivery conduits and the needle cores in the delivery conduits are simultaneously locked and positioned.

[0024] 3. The inner wall of the connecting hole is smooth and complete except the outlet of the locking part, so that particles are prevented from falling into the connecting member body. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic view of the overall structure of embodiment 1.

[0026] Figure 2 It is a schematic view of the part structure of embodiment 1.

[0027] Figure 3 Structure diagram of the magazine of Example 1;

[0028] Figure 4 Structure diagram of the parts of Example 1;

[0029] Figure 5 Structure diagram of the hatch opening of the main housing of Example 1;

[0030] Figure 6 Structure diagram of the interior of the main housing of Example 1;

[0031] Figure 7 Structure diagram of the needle core locking handle and joint locking handle of Example 1;

[0032] Figure 8 Structure diagram of the interior of the docking tray of Example 1;

[0033] Figure 9 Structure diagram of the exploded view of the docking tray of Example 1;

[0034] Figure 10 Structure diagram of the side view of the docking tray of Example 1;

[0035] Figure 11 Structure diagram of the Figure 10 enlarged view;

[0036] Figure 12 Structure diagram of the side view of the docking joint of Example 1;

[0037] Figure 13 Structure diagram of the particle implantation process of Example 1;

[0038] Figure 14 Structure diagram of the overall structure of Example 2;

[0039] Figure 15 Structure diagram of the connecting piece of Example 2;

[0040] Figure 16 Structure diagram of the exploded view of the connecting piece of Example 2;

[0041] Figure 17 Structure diagram of the handle of Example 2;

[0042] Figure 18 Structure diagram of the side view of the connecting piece of Example 2;

[0043] Figure 19 Structure diagram of the delivery catheter assembly of Example 2;

[0044] Figure 20 Structure diagram of the delivery catheter assembly of Example 2;

[0045] Figure 21 This is a schematic diagram of the flexible needle core structure in Example 2;

[0046] Figure 22 This is a schematic diagram of the limiting buckle structure in Example 2;

[0047] Figure 23 This is a schematic diagram of the toggle block structure in Example 2;

[0048] Figure 24 This is a schematic diagram of the first scheme in Example 3;

[0049] Figure 25 This is a schematic diagram of the internal structure of the docking plate in Example 3;

[0050] Figure 26 for Figure 25 Enlarged view of area A;

[0051] Figure 27 This is a schematic diagram of the quick-connect fitting structure of the first card tongue locking delivery conduit in Example 3;

[0052] Figure 28 for Figure 25 Enlarged view of area B;

[0053] Figure 29 This is a schematic diagram of the second scheme in Example 3;

[0054] Figure 30 This is a schematic diagram of the snap-fit ​​block structure in Example 3. Detailed Implementation

[0055] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0056] Example 1

[0057] like Figures 1 to 13A radioactive source implanting device, comprising a main machine shell 2401, a module hatch 2402, a display screen 2403, an emergency stop button 2404, a transparent observation window 2405, a docking disc panel 2406 (equivalent to a connecting piece panel), a docking disc 2407 (equivalent to a connecting piece), a hatch handle 2408, a support column 2409, a module cabin 24010, a needle core locking handle 24032, a joint locking handle 24033, a core pulling mechanism 24011, a particle push rod driving module 24012 (equivalent to a push rod driving mechanism), a cartridge seat 24013, a cartridge 24014, a force sensor 24023, a measuring wheel 24024, an encoder 24025, a needle core storage wheel 24015, a connecting tube 24016, a recovery tube 24017, a delivery catheter 24018, a puncture needle handle 24021, a particle push rod storage wheel 24020, a motor 24019, a cam A 24034, a spring 24039, a cam B 24036, an inductive switch 24040, a needle core pressing plate 24037, a joint pressing plate 24038, a docking mouth 24026, an inner tube assembly 101508, an outer tube assembly 101509, a needle pulling push rod 24043, a contact sensor 24027, a docking joint 24029, a rubber block 24041, a puncture needle 101504, a particle 101505, and a human body template 101511.

[0058] The main body of the particle implanting machine comprises a main machine shell 2401, a module hatch 2402, a display screen 2403, an emergency stop button 2404, an observation window 2405, a docking disc panel 2406, a docking disc 2407, a hatch handle 2408, a support column 2409, and a module cabin 24010. The main machine shell 2401 is provided with the emergency stop button 2404 and the transparent observation window 2405. The emergency stop button 2404 is used for emergency stop operation of the device. The transparent observation window 2405 facilitates observation of the installation and running of the module cabin 24010 in the main machine shell 2401. The support column 2409 is arranged at the lower part of the main machine shell 2401 and can fix the lower end of the recovery tube 24017.

[0059] Before the operation starts, the module hatch 2402 is in a closed state. The module hatch 2402 is located at the left and / or right side of the main machine shell 2401. The module hatch 2402 is opened by rotating the hatch handle 2408. The accessories are installed in the module cabin 24010. The core pulling mechanism 24011, the particle push rod driving module 24012 (equivalent to a push rod driving mechanism), and the cartridge seat 24013 are installed in the corresponding positions in the module cabin 24010. The core pulling mechanism 24011 and the cartridge seat 24013 are vertically installed on the docking disc panel 2406. Figure 6), particle pusher driving module 24012 is parallelly installed on the docking disc panel 2406, the rear side of the core pulling mechanism 24011 is provided with a needle core storage wheel 24015, and the rear side of the particle pusher driving module 24012 is provided with a particle pusher storage wheel 24020. The particle pusher storage wheel 24020 has a particle pusher (equivalent to a pusher) stored inside. The material of the particle pusher is a memory alloy metal with certain toughness.

[0060] One end of the connecting pipe 24016 is connected with the particle pusher driving module 24012, and the other end is connected with the force sensor 24023 on the cartridge seat 24013. The connecting pipe 24016 is bent at a certain angle, so that the elastic force of the connecting pipe 24016 is not completely parallel to the measurement axis of the force sensor 24023, thereby avoiding the influence of the elastic force of the connecting pipe 24016 on the reading of the force sensor 24023. The cartridge 24014 is installed in the cartridge seat 24013. The docking disc 2407 is installed on the docking disc panel 2406. The recovery pipe 24017 is fixed on the recovery hole of the docking disc 2407. The recovery pipe 24017 is provided with a hook at the end. The hook is connected with the support column 2409, so that the bending degree of the recovery pipe 24017 is not too large, and the core pulling mechanism 24011 can easily spit out the needle core into the recovery pipe 24017. After the installation is completed, the module cabin door 2402 is closed.

[0061] When the operation begins, the corresponding number of delivery catheters 24018 is prepared according to the number of puncture needles required by the operation, the implantation plan is set on the machine display screen 2403, the butt joint 24029 of the plurality of delivery catheters 24018 is loaded into the butt joint disc 2407 in turn, then the needle core locking handle 24032 is rotated, the internal connected cam A 24034 is rotated to make the needle core pressing plate 24037 rotate and press the rubber block 24041 at the front end of the butt joint 24029, and the rubber block 24041 simultaneously presses the needle core inside the delivery catheter 24018. After the pressing plate is locked, the cam controlling the movement of the pressing plate is detected by the inductive switch 24040 and feedback, and the mechanism simultaneously locks the butt joint 24029 and the internal needle core of all delivery catheters 24018 on the butt joint disc 2407. The other end of the delivery catheter 24018 is a puncture needle, and the puncture needle handle 24021 is held to puncture the puncture needle at the predetermined operation position. After the puncture is completed, the needle core locking handle 24032 is loosened, the spring 24039 connected to the needle core pressing plate 24037 rebounds to make the needle core pressing plate 24037 loosen the pressed rubber block 24041 and the needle core, and the above steps are repeated until the one end of all delivery catheters 24018 is inserted into the butt joint disc 2407, and the other end is punctured into the target position. The joint locking handle 24033 is tightened, the internal connected cam B 24036 is rotated to make the joint pressing plate 24038 rotate and embed into the horizontal groove on the side of the butt joint 24029, so that the joint pressing plate 24038 clamps the butt joint 24029. When the butt joint 24029 is fixed on the butt joint disc 2407, the entrance of the butt joint 24029 will protrude from the back of the butt joint disc 2407, so as to better butt joint with the butt joint mouth 24026 of the cartridge seat 24013, and also avoid the contact of the sterile butt joint mouth 24026 of the cartridge seat 24013 with the butt joint disc 2407.

[0062] The user starts the device, the particle implantation machine starts to work, the motor 24019 controls the rotation of the module cabin 24010 inside the machine to make the core pulling mechanism 24011 move to the corresponding position of the delivery guide tube 24018, the core pulling mechanism 24011 starts to work and moves forward to pull out the needle core inside the delivery guide tube 24018, the needle core will be sent into the needle core storage wheel 24015 behind the core pulling mechanism 24011 and automatically wind inside it under its own elastic action, and drive the needle core storage wheel 24015 to rotate synchronously, after the needle core is completely pulled out of the inside of the delivery guide tube 24018, the core pulling mechanism 24011 retreats backward, wherein the linear motion mechanism controls the forward and backward movement of the core pulling mechanism 24011, the linear motion mechanism is one or a combination of a lead screw nut mechanism, an electric push rod, and a gear and rack mechanism, the motor 24019 controls the rotation of the module cabin 24010 to make the core pulling mechanism 24011 butt joint with the position of the recovery tube 24017, and then the core pulling mechanism 24011 works to completely spit out the internally wound needle core and deliver it into the recovery tube 24017. Then the motor 24019 drives the module cabin 24010 to rotate to make the clip seat 24013 align with the position of the delivery guide tube 24018 from which the needle core has just been pulled out, the clip seat 24013 pushes out to butt joint with the butt joint 24029 of the delivery guide tube 24018, wherein the linear motion mechanism controls the forward and backward movement of the clip seat 24013, the linear motion mechanism is one or a combination of a lead screw nut mechanism, an electric push rod, and a gear and rack mechanism, then the particle push rod driving module 24012 pushes out the particle push rod inside the particle push rod storage wheel 24020, the particle push rod moves to the clip seat 24013 through the connecting tube 24016 and pushes out the particles inside the clip 24014 to the butt joint mouth 24026 at the front end of the clip seat 24013 in turn, at the same time, the inside of the clip seat 24013 is provided with a driven measuring wheel 24024 for pressing the particle push rod, which drives the measuring wheel 24024 to rotate through friction when the particle push rod moves, the rotation angle of the measuring wheel 24024 is measured by the encoder 24025, and the displacement amount of the particle push rod can be calculated through the encoder 24025, since the particle push rod driving module 24012 is also provided with an encoder module, the readings of the two encoders 24025 can be used to judge whether the measuring wheel 24024 slips or not, so as to ensure the reliability of the measurement result through double measurement units, a plurality of particles are reciprocally pushed out to reach the specified number, then the particle push rod driving module 24012 drives the particle push rod to push out the particles through the delivery guide tube 24018 to the front end of the puncture needle, in this process, if the resistance received by the particle push rod during movement becomes larger, the reaction force will be transmitted to the force sensor 24023 connected with the connecting tube 24016 and fed back.In other embodiments, reflective scale lines can also be arranged at equal intervals on the outer surface of the particle push rod, and a photoelectric sensor can be arranged in the cartridge seat 24013 or the particle push rod driving module 24012. When the particle push rod moves relative to the photoelectric sensor, a pulse signal will be generated synchronously. By sampling the pulse signal, the actual displacement of the particle push rod can be measured. This scheme can avoid slippage between the measuring wheel and the particle push rod, thereby affecting the measurement accuracy and reliability of the encoder.

[0063] In other embodiments, a stop step can be added to the end of the particle push rod. The position of the stop step is set according to the following principle: when the front end of the particle push rod extends along the delivery conduit into the puncture needle and protrudes from the front end of the puncture needle by a certain length, the stop step is clamped on the second stop step in the particle push rod driving module, thereby achieving mechanical limiting, avoiding injury caused by the particle push rod penetrating into human tissue, and improving overall safety. Preferably, the stop step is the end face of a stop pipe sleeved on the end of the particle push rod, and the second stop step is arranged on the particle push rod inlet end face in the particle push rod driving module.

[0064] In other embodiments, a connecting part can be arranged on the particle push rod storage wheel 24020. The connecting part is used to connect and fix the end or middle part of the particle push rod. The position of the connecting part is set according to the following principle: when the front end of the particle push rod extends along the delivery conduit into the puncture needle and protrudes from the front end of the puncture needle by a certain length, the particle push rod is pulled by the connecting part and cannot continue to advance, thereby achieving mechanical limiting, avoiding injury caused by the particle push rod penetrating into human tissue, and improving overall safety. The connecting part is connected and fixed to the end or middle part of the particle push rod in the form of threaded connection, adhesion, welding, buckle connection, etc.

[0065] As shown in FIG. 10A, when the plurality of particles 101505 reach the position of the puncture needle 101504 of the delivery conduit, the particle push rod driving module 24012 pushes one particle into the human body. Then the needle pulling rod 24043 is pushed forward until it contacts the outer tube assembly 101509. At this time, the contact sensor 24027 senses the contact signal. The contact sensor is one or a combination of a force sensor, a mechanical switch, an inductive switch, and a photoelectric switch. Then the needle pulling rod 24043 continues to push the outer tube assembly 101509 forward. The other end of the outer tube assembly 101509 abuts against the surface of the biological tissue or the human template 101511 (which can also be a prostate support or other instrument). When the outer tube assembly 101509 is pushed forward, the inner tube assembly 101508 moves relatively and pulls out the puncture needle 101504 connected at the front end out of the human body. Then the particle push rod driving module 24012 continues to push the next particle 101505, and the reciprocating work is repeated until the multiple particle implantation is completed. Figure 13 As shown in FIG. 10A, when the plurality of particles 101505 reach the position of the puncture needle 101504 of the delivery conduit, the particle push rod driving module 24012 pushes one particle into the human body. Then the needle pulling rod 24043 is pushed forward until it contacts the outer tube assembly 101509. At this time, the contact sensor 24027 senses the contact signal. The contact sensor is one or a combination of a force sensor, a mechanical switch, an inductive switch, and a photoelectric switch. Then the needle pulling rod 24043 continues to push the outer tube assembly 101509 forward. The other end of the outer tube assembly 101509 abuts against the surface of the biological tissue or the human template 101511 (which can also be a prostate support or other instrument). When the outer tube assembly 101509 is pushed forward, the inner tube assembly 101508 moves relatively and pulls out the puncture needle 101504 connected at the front end out of the human body. Then the particle push rod driving module 24012 continues to push the next particle 101505, and the reciprocating work is repeated until the multiple particle implantation is completed.

[0066] Wherein the docking mouth 24026 is arranged on the clip seat 24013 through a floating connection mechanism, and when the docking mouth 24026 is not completely aligned with the docking disc 2407, the docking mouth 24026 can move and complete docking through the guiding effect of the guide structure.

[0067] Embodiment 2

[0068] A radioactive source implanting device, specifically as shown in Figures 14-23 It comprises a particle implanting device 2014401, a connecting piece 2014402, a handle 2014403, a delivery catheter assembly 2014404, a guide plate 2014405, a limiting plate A 2014406, a limiting plate B 2014407, a rotating lever A 2014410, a flexible needle core 2014411, a soft pad 2014413, a limiting buckle 2014415, a rotating lever B 2014416, a compression spring 2014417, and a pushing block 2014419.

[0069] The array type locking mechanism has two locking gears. When the locking driving mechanism is in the first gear, the locking driving mechanism drives the locking part to translate a first distance, at this time, the locking part is clamped into the opening of the quick connector of the delivery catheter, and the locking part does not directly or indirectly press the needle core in the quick connector; when the locking driving mechanism is in the second gear, the locking driving mechanism drives the locking part to translate a second distance, the locking part rotates or translates into the opening and directly or indirectly presses the needle core in the quick connector, realizing the locking and positioning of the quick connector of each delivery catheter and the needle core inside.

[0070] The locking part is a clamping hole arranged in a rectangular or fan-shaped or annular array on the clamping plate. In the state of not locking, all the clamping holes are throughly arranged with the connecting hole, at this time, the connecting hole can be inserted through the quick connector of the delivery catheter; when locking, the clamping plate is driven to translate by the locking driving mechanism, part of the clamping hole is clamped into the opening, and the quick connector of the delivery catheter is locked and positioned on the connecting piece body.

[0071] The particle implanting device 2014401 is fixed with a channel switching mechanism, and the flexible needle core 2014411 is arranged in the channel switching mechanism; the connecting piece 2014402 is fixed on the channel switching mechanism; the conveying catheter assembly 2014404 is arranged above the connecting piece 2014402; the limiting buckle 2014415 is arranged at the lower end of the conveying catheter assembly 2014404; the limiting buckle 2014415 is provided with a notch, and the soft pad 2014413 is fixed in the notch; the sliding cavity is arranged in the connecting piece 2014402, and the compression spring 2014417 is fixed to the lower end surface of the sliding cavity; the limiting plate B 2014407 and the limiting plate A 2014406 are slidably arranged in the sliding cavity, and the right end surface of the limiting plate B 2014407 is slidably connected with the left end surface of the limiting plate A 2014406; the rotating lever A 2014410 is arranged through the lower end of the limiting plate B 2014407 and the connecting piece 2014402, the rotating lever A 2014410 is provided with the rotating block 2014419, the rotating block 2014419 rotates and slides in the limiting plate B 2014407; the handle 2014403 is fixed to one end of the rotating lever A 2014410 located outside the connecting piece 2014402; the handle 2014403 rotates the rotating block 2014419 through the rotating lever A 2014410 to make the limiting plate B 2014407 move downward in the sliding cavity; the rotating lever B 2014416 is arranged through the lower end of the limiting plate A 2014406, the lower end of the limiting plate B 2014407 and the connecting piece 2014402, the rotating lever B 2014416 is provided with the rotating block 2014419, and the rotating block 2014419 rotates and slides in the limiting plate A 2014406; the handle 2014403 is fixed to one end of the rotating lever B 2014416 located outside the connecting piece 2014402; the handle 2014403 rotates the rotating block 2014419 through the rotating lever B 2014416 to make the limiting plate A 2014406 move downward in the sliding cavity; the guide plate 2014405 is arranged on the right side of the limiting plate A 2014406, and the guide plate 2014405 is fixed to the left end surface of the connecting piece 2014402;

[0072] The array limiting hole is arranged on the connecting piece 2014402, the corresponding numerical indication is arranged on the limiting hole, the limiting buckle 2014415 can be inserted according to the corresponding numerical indication; the handle 2014403 is arranged on one side of the connecting piece 2014402, and the tightness indication is arranged on the handle 2014403, the handle 2014403 can be rotated according to the indication to be locked;

[0073] As Figure 20 and Figure 21As shown, the flexible needle core 2014411 is arranged in the delivery catheter assembly, extends along the delivery catheter assembly, and fills the space in the puncture needle connected to the front end of the delivery catheter assembly. The front end of the flexible needle core 2014411 is a sharp end, and the rear end of the flexible needle core 2014411 extends from the delivery catheter assembly to form a needle core tail. The needle core tail is provided with a stop step, and the stop step abuts against the inlet end surface of the delivery catheter assembly to limit the position.

[0074] Further, the flexible needle core includes a needle core body and a limiting ring. The outer diameter of the limiting ring is greater than the outer diameter of the needle core body. The limiting ring is sleeved on the needle core body and is fixed with the needle core body by one or a combination of mechanical pressure bonding, welding, and bonding. At this time, the stop step is the end surface of one side of the limiting ring.

[0075] Alternatively, the flexible needle core includes a needle core body and a core tail. The needle core body is connected with the core tail by one or a combination of mechanical pressure bonding, welding, and bonding. The outer diameter of one end of the core tail connected with the needle core body is greater than the outer diameter of the needle core body. At this time, the stop step is the end surface of one end of the core tail connected with the needle core body, or the core tail is provided with a variable-diameter step. At this time, the stop step is the variable-diameter step.

[0076] Alternatively, the flexible needle core includes a needle core body. The needle core body is formed with a variable-diameter part by flattening processing. At this time, the stop step is the variable-diameter part.

[0077] The guide plate 2014405 is provided with an array of conical guide holes, which can be positioned and guided when the butt joint mouth of the channel switching mechanism is butted against it.

[0078] By inserting the limiting buckle 2014415 at the lower end of the delivery catheter assembly 2014404 into the corresponding limiting hole on the connecting piece 2014402 until the lower end surface of the limiting buckle 2014415 abuts against the upper end surface of the connecting piece 2014402, then rotating the rotating lever A 2014410 to drive the push block 2014419 to rotate, so that the push block 2014419 pushes the limiting plate B 2014407 to move downward, and the limiting plate B 2014407 is inserted into the slot at the lower end of the limiting buckle 2014415 to lock the limiting buckle 2014415 on the connecting piece 2014402; the sharp end of the flexible needle core 2014411 enters the delivery catheter assembly 2014404 through the through hole at the lower end of the limiting buckle 2014415 until the stop step on the flexible needle core 2014411 abuts against the lower end surface of the limiting buckle 2014415, and at the same time the sharp end of the flexible needle core 2014411 extends out of the end of the delivery catheter assembly 2014404 to enter the state of waiting to be punctured; then rotating the rotating lever B 2014416 to drive the push block 2014419 to rotate, so that the push block 2014419 pushes the limiting plate A 2014406 to move downward, and the limiting plate A 2014406 extrudes the soft pad 2014413 to lock the flexible needle core 2014411 on the limiting buckle 2014415, preventing the reverse movement of the flexible needle core 2014411 when puncturing, and enabling the flexible needle core 2014411 to better puncture.

[0079] Example 3

[0080] The locking part is a clamping tongue arranged in a ring or fan array on the clamping plate. In the unlocked state, all clamping tongues are staggered with the connecting hole, and at this time the connecting hole can be inserted through the quick connector of the delivery catheter; when locking, the clamping plate is driven to rotate around the center of the ring or fan array by the locking driving mechanism, and the clamping tongue is clamped into the opening to lock and position the quick connector of the delivery catheter on the connecting piece body.

[0081] Specifically as Figures 24 to 28, the first scheme: the interface disk 2407 (equivalent to the connecting piece) is rotatable and provided with a clamping plate 240701, and an array of connecting holes 240706 for clamping the quick connector of the delivery conduit 24018 is arranged on the clamping plate 240701; the inner wall of the connecting hole 240706 is smooth and complete except for an outlet of a locking portion, so as to avoid particles from falling into the body of the interface disk 2407; a locking driving mechanism drives the clamping plate to rotate or translate through a first transmission mechanism; the locking portion is directly arranged on the clamping plate 240701 and is a first clamping tongue 240705; one end of the first clamping tongue 240705 is fixed or integrally connected with the clamping plate 240701, and the other end of the first clamping tongue 240705 is provided with a first clamping head 24070501 in an L shape; the first clamping head 24070501 can move into the connecting hole 240706 in a circumferential direction to clamp the quick connector of the delivery conduit 24018, wherein, as shown in Figure 27 , the quick connector of the delivery conduit 24018 is provided with an annular opening, the first clamping head 24070501 is clamped into the annular opening, the locking driving mechanism is a rotating handle 240702, the first transmission mechanism includes a rotating cam 240703 and a transmission plate 240704, the rotating handle 240702 is connected with the rotating cam 240703 through a connecting shaft, one side of the transmission plate 240704 is provided with a compression spring 240707, the compression spring 240707 drives the other side of the transmission plate 240704 to be pressed against the side surface of the rotating cam 240703 through the elasticity of the compression spring 240707, the rotating handle 240702 is rotated to drive the rotating cam 240703 inside to rotate, the rotating cam 240703 drives the transmission plate 240704 to move to one side of the compression spring 240707 to drive the clamping plate 240701 to rotate, and the first clamping head 24070501 on the first clamping tongue 240705 is driven to move out of the connecting hole 240706 to loosen the quick connector of the delivery conduit 24018; the upper side of the transmission plate 240704 is provided with a detection switch

[0082] 240708, when the first clamping head 24070501 moves out of the connecting hole 240706, the transmission plate 240704 triggers the detection switch

[0083] 240708, at this time, the detection switch 240708 gives a signal that the locking has been released. Alternatively, the cam can be arranged on one side of the transmission plate 240704, the locking action is realized through the cam mechanism, and the unlocking action is realized through the reset movement of the compression spring 240707.

[0084] The inner wall of the connecting hole 240706 is smooth and complete except for the outlet of the first clamping head 24070501, so as to avoid particles from falling into the body of the interface disk 2407.

[0085] The lower part of the rotating cam 240703 is provided with a positioning device 240709, the positioning device 240709 is provided with a glass bead 240710, the side of the rotating cam 240703 is provided with two grooves corresponding to the glass bead 240710, the two grooves correspond to different gears respectively, when the rotating handle 240702 is rotated, the glass bead 240710 is clamped into the groove of different gears, and the hand feeling can be inducted, so as to switch the locking or loosening of the two gears.

[0086] Or also provided with a second scheme, referring to the working principle of the first scheme of the embodiment, and the difference from the first scheme is that: the array type locking mechanism includes a plurality of clamping blocks arranged in a fan shape or a ring shape on the connecting piece body, each clamping block can translate or rotate relative to the connecting piece body, the locking part is a clamping hole and a clamping tongue provided on each clamping block, each clamping block is drivingly connected with the clamping plate through a second transmission mechanism, when the clamping plate rotates, the clamping plate drives all the clamping blocks to rotate or translate, in the state of not locking, the clamping holes of all the clamping blocks are throughly arranged with the connecting holes, or the clamping tongues of all the clamping blocks are staggered with the connecting holes, at this time the connecting holes can be inserted into the quick connector of the conveying pipe; when locking, part of the clamping holes are clamped into the opening, or the clamping tongues are clamped into the opening, the quick connector of the conveying pipe is locked and positioned on the connecting piece body.

[0087] Specifically as Figure 29 And Figure 30 Further comprising a clamping block 240711, all the clamping blocks 240711 can slide along the radial direction of the butt joint disc, the clamping plate 240701 is provided with an inclined sliding groove 240712 in an array, one end of the clamping block 240711 is provided with a placing groove 24071101, the clamping plate 240701 is inserted into the placing groove 24071101, and the clamping block 240711 is fixedly connected with a sliding rod 24071102 at the end of the placing groove 24071101, the sliding rod 24071102 passes through the sliding groove 240712, the other end of the clamping block 240711 is provided with a second clamping tongue head 24071103, when the clamping plate 240701 rotates forward, the sliding rod 24071102 is resisted by the side wall of the sliding groove 240712, and moves outward along the inclined sliding groove 240712, so as to drive the clamping block 240711 and the second clamping tongue head 24071103 to move outward, realizing that the second clamping tongue head 24071103 clamps the quick connector of the conveying pipe 24018, wherein Figure 30As shown, the quick joint of the delivery conduit 24018 is provided with an annular opening, and the second clamping head 24071103 is clamped into the annular opening; when the clamping plate 240701 is reversely rotated, the sliding rod 24071102 is resisted by the side wall of the sliding groove 240712, and moves inward along the inclined sliding groove 240712, thereby driving the clamping block 240711 and the second clamping head 24071103 to move inward, and loosening the quick joint of the delivery conduit 24018. At this time, the sliding groove 240712 and the sliding rod 24071102 constitute a cam mechanism (i.e. the second transmission mechanism).

[0088] The inner wall of the connecting hole 240706 is smooth and complete except the outlet of the second clamping head 24071103, so that particles are prevented from falling into the body of the butt joint disc 2407.

[0089] The basic principle and main features of the present application and the advantages of the present application are shown and described above, and it is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0090] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A connecting member with an array of locking functions, characterized by, The connecting piece body is provided with a plurality of connecting holes, each of which can be connected with a quick connector of a conveying pipe, and the connecting piece body is provided with an array locking mechanism capable of simultaneously locking and positioning the quick connectors, the array locking mechanism is provided with locking portions corresponding to the positions of the connecting holes, in the unlocked state, the relative positions of all the locking portions and the connecting holes allow the quick connectors to be inserted into the connecting holes, when locking, all the locking portions are driven to rotate or translate by the locking drive mechanism, the relative positions of the locking portions and the connecting holes change, the side surface of the quick connector is provided with an opening, the locking portions rotate or translate into the opening, and the simultaneous locking and positioning of the quick connectors of the conveying pipes are realized.

2. The connecting member with arrayed locking function according to claim 1, characterized in that, The connecting piece body is provided with a clamping plate that rotates or translates, the locking drive mechanism drives the clamping plate to rotate or translate through a first transmission mechanism, the locking portions are directly arranged on the clamping plate, or the locking portions are in transmission connection with the clamping plate through a second transmission mechanism, when the clamping plate rotates, the clamping plate drives the locking portions to rotate or translate into or out of the opening, the first transmission mechanism is a cam mechanism or a gear mechanism or a belt transmission mechanism, and the second transmission mechanism is a connecting rod mechanism or a spiral groove cam mechanism.

3. The connecting member with arrayed locking function according to claim 2, characterized in that, The locking portions are clamping holes or clamping tongues arranged in a ring or fan array on the clamping plate, in the unlocked state, all the clamping holes are arranged through the connecting holes, or all the clamping tongues are staggered with the connecting holes, at this time, the connecting holes can be inserted into the quick connectors of the conveying pipes, when locking, the clamping plate is driven to rotate around the center of the ring or fan array by the locking drive mechanism, part of the clamping holes or the clamping tongues are clamped into the opening, and the quick connectors of the conveying pipes are locked and positioned on the connecting piece body.

4. The connecting member with arrayed locking function according to claim 2, characterized in that, The locking portions are clamping holes or clamping tongues arranged in a rectangular or fan or ring array on the clamping plate, in the unlocked state, all the clamping holes are arranged through the connecting holes, or all the clamping tongues are staggered with the connecting holes, at this time, the connecting holes can be inserted into the quick connectors of the conveying pipes, when locking, the clamping plate is driven to translate by the locking drive mechanism, part of the clamping holes or the clamping tongues are clamped into the opening, and the quick connectors of the conveying pipes are locked and positioned on the connecting piece body.

5. The connecting member with arrayed locking function according to claim 2, wherein, The array locking mechanism has two locking gears, when the locking drive mechanism is located in the first gear, the locking drive mechanism drives the locking portions to rotate by a first angle or to translate by a first distance, at this time, the locking portions are clamped into the opening of the quick connector of the conveying pipe, and the locking portions do not directly or indirectly press the needle core in the quick connector, when the locking drive mechanism is located in the second gear, the locking drive mechanism drives the locking portions to rotate by a second angle or to translate by a second distance, the locking portions rotate or translate into the opening and directly or indirectly press the needle core in the quick connector, and the simultaneous locking and positioning of the quick connectors of the conveying pipes and the needle cores inside the quick connectors are realized.

6. The connecting member with arrayed locking function according to claim 5, wherein, The array locking mechanism has two locking gears, and the locking driving mechanism adopts a cam structure. When the locking driving mechanism drives the cam to rotate to the angle of the first gear, the cam drives the clamping plate to rotate by a first angle or to translate by a first distance. At this time, the locking part is clamped into the opening of the quick connector of the delivery conduit, and the locking part does not directly or indirectly press the needle core in the quick connector. When the cam of the locking driving mechanism rotates to the angle of the second gear, the cam drives the clamping plate to rotate by a second angle or to translate by a second distance, and the locking part rotates or translates into the opening and directly or indirectly presses the needle core in the quick connector, thereby achieving the locking and positioning of the quick connector of each delivery conduit and the needle core inside the quick connector.

7. The connecting member with arrayed locking function according to claim 2, wherein The array locking mechanism includes clamping blocks arranged in a fan shape or a ring shape on the connecting member body. Each clamping block can translate or rotate relative to the connecting member body. The locking part is a clamping hole and a clamping tongue provided on each clamping block. Each clamping block is in transmission connection with the clamping plate through a second transmission mechanism. When the clamping plate rotates, the clamping plate drives all clamping blocks to rotate or translate. In the unlocked state, the clamping holes of all clamping blocks are throughly arranged with the connecting holes, or the clamping tongues of all clamping blocks are staggered with the connecting holes. At this time, the connecting holes can be inserted into the quick connector of the delivery conduit. When locking, part of the clamping holes are clamped into the opening, or the clamping tongues are clamped into the opening, thereby locking and positioning the quick connector of the delivery conduit on the connecting member body.

8. The connecting member with arrayed locking function according to claim 1, wherein, A limiting structure is arranged between the quick connector and the connecting member body. The limiting structure is a limiting protrusion arranged on the quick connector or the connecting member body. A limiting groove is arranged on the corresponding connecting member body or the quick connector. The quick connector is provided with an elastic body at the opening. The elastic body is in close contact with the needle core. The limiting protrusion cooperates with the limiting groove to prevent the quick connector mounted on the connecting member body from rotating and align the clamping plate with the elastic body. Alternatively, the opening on the side of the quick connector is a ring-shaped opening. When the quick connector is inserted into the connecting hole on the connecting member at different angles, the clamping plate can enter the ring-shaped opening by rotating or translating and directly or indirectly press the needle core, thereby simultaneously locking and positioning the quick connector of each delivery conduit.

9. A radioactive source implantation device, characterized in that, The connecting member with the array locking function includes a motion platform, a push rod output channel, a push rod, and a push rod driving mechanism. The push rod output channel is used to guide the push rod to move forward and backward. The connecting member is connected with a plurality of delivery conduits. The motion platform is used to realize the relative motion of one end of the push rod output channel and the connecting member in space, so that the push rod output channel and the quick connector of any delivery conduit on the connecting member form a delivery channel of the radioactive source. The push rod driving mechanism is in communication with the push rod output channel. The push rod driving mechanism drives the push rod to move forward and backward along the push rod output channel, so as to push the radioactive source arranged in front of the push rod to the target position along the delivery conduit.

10. The radioactive source implantation device of claim 9, wherein, The needle core is arranged in the delivery conduit. The needle core extends along the delivery conduit and fills the space in the puncture needle connected to the front end of the delivery conduit. The needle core rear end extends from the delivery conduit by a needle core tail, and the needle core tail is provided with a stop step which abuts against the inlet end surface of the delivery conduit to limit the position.

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