CN111632260B

CN111632260B - Puncture implantation auxiliary device for radiotherapy

Info

Publication number: CN111632260B
Application number: CN202010512223.1A
Authority: CN
Inventors: 施璠; 惠蓓娜; 汪涛; 张莹冰; 刘孜
Original assignee: First Affiliated Hospital of Medical College of Xian Jiaotong University
Current assignee: First Affiliated Hospital of Medical College of Xian Jiaotong University
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2022-02-25
Anticipated expiration: 2040-06-08
Also published as: CN111632260A

Abstract

The invention discloses a puncture implantation auxiliary device for radiotherapy, which relates to the technical field of medical instruments and comprises a radiotherapy platform, wherein an anti-shaking mechanism and an auxiliary implantation mechanism are further arranged on the radiotherapy platform, two symmetrically-arranged slide rails are mounted at the side ends of the radiotherapy platform, and fixing grooves are formed in the side ends of the two slide rails. By arranging the anti-shaking mechanism, the body shaking of a patient is prevented from influencing the radiotherapy process, the focus region can be fixed, and the normal operation of radiotherapy puncture implantation is ensured; by arranging the auxiliary implantation mechanism, the formed blood coagulation plug is easier to open in a rotary insertion mode, and is pulled out in a rotary mode, so that the particles are subjected to resistance in the insertion hole, and the migration of the implanted radioactive particles can be prevented; many can be implanted to radioactive particle source single stroke for the particle source is fan-shaped umbelliform distribution for the tumor body, and implantation speed is faster, and can evenly shine focus target body, and the radiotherapy effect is better.

Description

Puncture implantation auxiliary device for radiotherapy

Technical Field

The invention relates to the technical field of medical instruments, in particular to a puncture implantation auxiliary device for radiotherapy.

Background

The radioactive particle puncture implantation for treating tumor is characterized by that the radioactive isotope is wrapped in a titanium tube and sealed, and made into a sealed sub-source, the length of the sub-source is equal to 4.5mm, and its diameter is a cylindrical body with 0.8mm, the radioactive source is placed in the sub-source, and then the sub-source is implanted into the interior of tumor by means of puncture needle to make radiotherapy.

However, the conventional puncture implantation device for radiotherapy generally has the following disadvantages in the use process: firstly, general anesthesia is not needed to be carried out on a patient in the puncture implantation process, so that the patient is difficult to keep a static state in the radiotherapy process, and a doctor has certain influence on the puncture operation of a focus part; secondly, when a doctor performs puncture operation, the needle sheath directly penetrates to a focus position, bleeding is difficult to avoid in the process, a blood coagulation plug can be formed in a short time after bleeding, the puncture needle and the particle source are relatively fine, the blood coagulation plug can hinder the implantation of the subsequent particle source, and the particles can migrate along with the extraction of the puncture needle after implantation; when the doctor implants the radioactive particles, only one particle can be implanted at a time, the efficiency is very low, the spatial distribution among the particles cannot be obviously observed on a display panel through auxiliary equipment such as CT (computed tomography), if the spatial distribution of the implanted particles is too sparse, the treatment effect cannot be achieved, if the spatial distribution of the implanted particles is too dense, the particles are wasted, and adjacent tissues can be damaged after the tumor disappears.

Disclosure of Invention

The invention aims to provide a puncture implantation auxiliary device for radiotherapy, which solves the defects caused by the prior art.

The utility model provides a radiotherapy is with puncture implantation auxiliary device, includes the radiotherapy platform, still be provided with anti-shake mechanism and supplementary implantation mechanism on the radiotherapy platform, the slide rail that two symmetries set up is installed to the side of radiotherapy platform, two the fixed slot has been seted up to the side of slide rail, anti-shake mechanism sets up on the slide rail to be used for fixed patient puncture position and confirm puncture point position, supplementary implantation mechanism sets up on anti-shake mechanism, and is used for the synchronous spiral puncture of a plurality of syringe needles.

Preferably, the anti-shake mechanism comprises a double-arch mounting frame, a first driving motor, a first tension spring and a vacuum generator, the lower end of the mounting frame is slidably arranged on the slide rail, the lower end of the mounting frame is fixed in the fixing groove through two symmetrically arranged bolts, a through groove is formed in one side end of the mounting frame, sliding grooves are formed in two sides of the through groove outside the mounting frame, the first driving motor is arranged on the mounting frame through a first mounting plate, an output shaft of the first driving motor is arranged in the through groove, two ends of the first mounting plate are slidably arranged in the sliding grooves, the output end of the first driving motor is connected with a gear, a curved mounting groove is formed in the inner side of the mounting frame, a rack matched with the first mounting groove is arranged in the mounting groove, the gear is meshed with the rack, the other end of the gear is connected with a connecting rod, a groove is formed in the middle annular direction of the connecting rod, and the other end of the connecting rod is slidably arranged on the other side of the mounting frame, the upper end of the first tension spring is fixed on the mounting frame, the lower end of the first tension spring is connected with a special negative pressure bag for radiotherapy, the vacuum generator is installed at the inner side end of the mounting frame, and two ends of the special negative pressure bag for radiotherapy are connected with the vacuum generator.

Preferably, the auxiliary implanting mechanism comprises a mounting seat, a fixed platform, a rotating ring piece, a second driving motor and a third driving motor, the mounting seat is an I-shaped mechanism, a mounting hole is formed in the middle of the mounting seat and matched with the connecting rod, a limit nail is inserted into the side end of the mounting seat and connected with the second tension spring, the other end of the second tension spring is fixed on the side surface of the mounting seat, the end part of the limit nail is clamped in the groove, the side end of the fixed platform is fixed on the mounting seat, the second driving motor is mounted at the lower end of the fixed platform through the second mounting plate, the output end of the second driving motor is connected with a driving wheel, an avoiding groove is further formed in the mounting seat, the driving wheel is arranged in the avoiding groove, a plurality of uniformly distributed guide posts are annularly arranged at the upper end of the fixed platform, the side end of the rotating ring piece is abutted against the driving wheel, and an annular through hole is formed in the upper end of the rotating ring piece, the guide post is arranged in the through hole, the inner side of the rotating ring piece is hinged with a plurality of curved pull rods, the other ends of the pull rods are hinged with slide rods, guide blocks are arranged on the slide rods in a sliding mode, clamps are obliquely arranged at the side ends of the guide blocks, needle sheaths are arranged in the clamps, the lower side ends of the mounting seats are connected with guide plates, a plurality of uniformly distributed guide holes are formed in the guide plates, and the needle sheaths are arranged in the guide holes in a sliding mode;

preferably, the upper end of fixed station still is fixed with mounting panel three of "L" shape, driving motor three is installed on mounting panel three, and driving motor three's output is connected with the side and sets up threaded rotation piece, a plurality of the upper end of guide post is fixed with the spliced pole, the upper end of spliced pole is rotated and is connected with the baffle, and the side of spliced pole is provided with the torsional spring, the upper end butt of torsional spring is in the side of baffle, and the thread groove has been seted up to the one end of baffle, it is provided with the pjncture needle to rotate between piece and the baffle, the pjncture needle is arranged in the needle sheath.

Preferably, the upper end of the puncture needle is provided with threads, and is matched with the threads of the rotating part and the baffle.

Preferably, the upper end of the mounting plate III is provided with notches at two sides of the driving motor III, and the vertical projection of the needle sheath and the puncture needle is arranged in the notches.

Preferably, the guide plate can move at the lower end of the mounting seat, and the upper ports of the plurality of guide holes are rounded.

The invention has the advantages that: (1) by arranging the anti-shaking mechanism, the two special negative pressure bags for radiotherapy arranged at the lower end of the mounting frame are used for locally fixing the patient, so that the influence of shaking of the body of the patient on the radiotherapy process is avoided, the puncture implantation operation is performed in the middle area of the double-arch surface of the mounting frame, the focus area can be fixed, and the normal operation of the puncture implantation in the radiotherapy is ensured;

(2) by arranging the auxiliary implantation mechanism, the transmission wheel drives the needle sheaths to rotate towards a preset direction through the rotating ring piece, the pull rod and the sliding rod, the rotating piece drives the puncture needles to rotate towards the opposite direction of the needle sheaths, the formed blood coagulation plug is easier to open in a rotating and inserting mode, the formed blood coagulation plug is pulled out in a rotating mode, particles are subjected to resistance in an insertion aperture, and the implanted radioactive particles can be prevented from migrating;

(3) through setting up supplementary implantation mechanism, many can be implanted to radioactive particle source single stroke, start driving motor one, its output drives supplementary implantation mechanism at the appropriate angle of mounting groove internal rotation through gear, rack and connecting rod, can implant many once more for the particle source is fan-shaped umbelliform distribution for the tumor body, and implantation speed is faster, and can evenly shine the focus target body, and the radiotherapy effect is better.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the anti-shake mechanism according to the present invention.

Fig. 3 is a schematic structural diagram of the anti-shake mechanism according to the present invention from different viewing angles.

Fig. 4 is a schematic view of the internal structure of the present invention.

Fig. 5 is a schematic structural view of an auxiliary implanting mechanism of the present invention.

Fig. 6 is a partial structural view of an auxiliary implanting mechanism of the present invention.

Fig. 7 is another partial structural view of the auxiliary implanting mechanism of the present invention.

Fig. 8 is an enlarged view of fig. 7 at a.

Wherein, 1-radiotherapy platform, 2-anti-shake mechanism, 3-auxiliary implantation mechanism, 4-sliding rail, 5-fixing groove, 201-mounting rack, 202-driving motor I, 203-tension spring I, 204-vacuum generator, 205-bolt, 206-through groove, 207-sliding groove, 208-mounting plate I, 209-gear, 210-mounting groove, 211-rack, 212-connecting rod, 213-groove, 214-radiotherapy special negative pressure bag, 301-mounting seat, 302-fixing table, 303-rotating ring piece, 304-driving motor II, 305-driving motor III, 306-mounting hole, 307-limit nail, 308-tension spring II, 309-mounting plate II, 310-driving wheel, 311-guide column and 312-through hole, 313-pull rod, 314-slide rod, 315-guide block, 316-clamp, 317-needle sheath, 318-guide plate, 319-guide hole, 320-mounting plate III, 321-rotating part, 322-connecting column, 323-baffle, 324-torsion spring, 325-thread groove and 326-puncture needle.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 8, a puncture implantation auxiliary device for radiotherapy comprises a radiotherapy platform 1, wherein an anti-shaking mechanism 2 and an auxiliary implantation mechanism 3 are further arranged on the radiotherapy platform 1, two slide rails 4 symmetrically arranged are mounted at the side end of the radiotherapy platform 1, a fixing groove 5 is formed in the side end of each slide rail 4, the anti-shaking mechanism 2 is arranged on each slide rail 4 and used for fixing a puncture position of a patient and determining the puncture position, and the auxiliary implantation mechanism 3 is arranged on the anti-shaking mechanism 2 and used for synchronous spiral puncture of a plurality of needle heads.

In this embodiment, the anti-shake mechanism 2 includes a double-arched mounting frame 201, a first driving motor 202, a first tension spring 203, and a vacuum generator 204, the lower end of the mounting frame 201 is slidably disposed on the slide rail 4, the lower end of the mounting frame 201 is fixed in the fixing groove 5 by two symmetrically disposed bolts 205, a through groove 206 is disposed at one side end of the mounting frame 201, sliding grooves 207 are disposed at two sides of the through groove 206 outside the mounting frame 201, the first driving motor 202 is disposed on the mounting frame 201 by a first mounting plate 208, an output shaft of the first driving motor 202 is disposed in the through groove 206, two ends of the first mounting plate 208 are slidably disposed in the sliding grooves 207, an output end of the first driving motor 202 is connected to a gear 209, a curved mounting groove 210 is disposed at the inner side of the mounting frame 201, a rack 211 matched with the mounting groove 210 is disposed in the mounting groove 210, and the gear 209 is engaged with the rack 211, the other end of gear 209 is connected with connecting rod 212, recess 213 has been seted up to the middle part hoop of connecting rod 212, and the other end of connecting rod 212 slides and sets up on the opposite side of mounting bracket 201, on the upper end of an extension spring 203 is fixed in mounting bracket 201, the lower extreme of an extension spring 203 is connected with special negative pressure bag 214 of radiotherapy, vacuum generator 204 installs in the medial extremity of mounting bracket 201, the both ends of special negative pressure bag 214 of radiotherapy link to each other with vacuum generator 204.

It should be noted that, the lower extreme of mounting bracket 201 can guarantee to hold the space of an adult's position, and the arch middle part region of mounting bracket 201 can guarantee 4 rotates at its inside wantonly, the surface of special negative pressure bag 214 of radiotherapy is provided with the buffer layer, and under the prerequisite of fixing to patient's operation position periphery, the phenomenon of excessively tying up can not produce.

In this embodiment, the auxiliary implanting mechanism 3 includes an installation base 301, a fixed platform 302, a rotating ring 303, a second driving motor 304 and a third driving motor 305, the installation base 301 is an "I" shaped mechanism, and a mounting hole 306 is formed in the middle of the installation base 301, the mounting hole 306 is matched with the connecting rod 212, a limit pin 307 is inserted into a side end of the installation base 301, the limit pin 307 is connected with a second tension spring 308, the other end of the second tension spring 308 is fixed on a side surface of the installation base 301, an end portion of the limit pin 307 is clamped in the groove 213, a side end of the fixed platform 302 is fixed on the installation base 301, the second driving motor 304 is installed at a lower end of the fixed platform 302 through a second installation plate 309, an output end of the second driving motor 304 is connected with a driving wheel 310, the installation base 301 is further provided with an avoiding groove, the driving wheel 310 is arranged in the avoiding groove, an upper end of the fixed platform 302 is annularly provided with a plurality of evenly distributed guide posts 311, the side end of the rotating ring member 303 is abutted against the driving wheel 310, the upper end of the rotating ring member 303 is provided with an annular through hole 312, the guide post 311 is arranged in the through hole 312, the inner side of the rotating ring member 303 is hinged with a plurality of curved pull rods 313, the other end of the pull rods 313 is hinged with a slide rod 314, the slide rod 314 is provided with a guide block 315 in a sliding manner, the side end of the guide block 315 is obliquely provided with a clamp 316, a needle sheath 317 is arranged in the clamp 316, the lower side end of the mounting seat 301 is connected with a guide plate 318, the guide plate 318 is provided with a plurality of uniformly distributed guide holes 319, and the needle sheath 317 is arranged in the guide holes 319 in a sliding manner;

the upper end of fixed station 302 still is fixed with three 320 of mounting panel of "L" shape, three 305 of driving motor install on three 320 of mounting panel, and three 305 of driving motor's output is connected with the side and sets up the rotation piece 321 of screw thread, a plurality of the upper end of guide post 311 is fixed with spliced pole 322, the upper end of spliced pole 322 is rotated and is connected with baffle 323, and spliced pole 322's side is provided with torsional spring 324, the upper end butt of torsional spring 324 in the side of baffle 323, thread groove 325 has been seted up to the one end of baffle 323, be provided with pjncture needle 326 between rotation piece 321 and the baffle 323, pjncture needle 326 is arranged in needle sheath 317.

In this embodiment, the upper end of the puncture needle 326 is threaded and is engaged with the threads of the rotor 321 and the shield 323.

It is noted that the upper end of the third mounting plate 320 is provided with notches at two sides of the third driving motor 305, the vertical projection of the needle sheath 317 and the puncture needle 326 is arranged in the notches, and the first driving motor 202, the second driving motor 304 and the third driving motor 305 are all servo motors.

In addition, the guide plate 318 can move at the lower end of the mounting seat 301, the upper ports of a plurality of the guide holes 319 are all rounded, and the insertion end parts of the needle sheath 317 and the puncture needle 326 are annularly chamfered and polished, and the rotation directions are opposite.

The working process and principle are as follows: in the using process of the invention, firstly, a doctor is operated to determine the specific part of the focus through detection equipment such as CT and the like, the anti-shake mechanism 2 is slid on the slide rail 4 to a proper position after the mark is made, so that the focus part is arranged in the middle of the double-arch mounting frame 201, then the bolt 205 is screwed tightly for fixing, the vacuum generator 204 is started, negative pressure vacuum is formed in the negative pressure bag 214 special for radiotherapy, a buffer layer at the lower end of the negative pressure bag 214 special for radiotherapy is arranged, on the premise of fixing the periphery of the operation position of the patient, the phenomenon of excessive binding can not be generated, the first driving motor 202 is started, the output end of the auxiliary implanting mechanism 3 is driven by the gear 209 through the connecting rod 212 to move to a proper position in the mounting groove 210, then the limit nail 307 is pulled out manually, the angle of the mounting seat 301 is rotated, when the lower end of the needle sheath 317 is matched with the focus part, the limit nail 307 is loosened, the tip end of the second tension spring 308 is automatically clamped in the groove 213 under the tension of the second tension spring to realize the positioning of the angle;

then, the second driving motor 304 is started, the output end of the second driving motor drives the driving wheel 310 to rotate, the rotating ring member 303 is driven to rotate, the needle sheath 317 is driven to move downwards in the fixed platform 302 through the driving of the pull rod 313 hinged on the inner wall of the rotating ring member 303 through the sliding rod 314, the guide block 315 and the clamp 316, under the synergistic action of the guide plate 318, the needle sheath 317 can be ensured to vertically and rotatably enter the body at the focus position, the adverse effect on the radiotherapy operation caused by hand shake when a doctor manually inserts the needle sheath is prevented, and the needle sheath is not bent due to a longer size and a smaller diameter, when the tip of the needle sheath 317 is observed to move to a proper position through auxiliary equipment such as CT and the like, the third driving motor 305 is started, the output end of the third driving motor drives the rotating member 321 to rotate, the puncture needle 326 annularly arranged around the rotating member 321 is under the action of the torsion spring 324, so that the baffle 323 is abutted against the puncture needle 326 and under the action of the thread groove 325, the puncture needle 326 can be inserted downwards in a rotating mode, so that a plurality of radioactive particles are pushed to synchronously reach the lesion position and are uniformly distributed in a scattered mode above the lesion position relative to a tumor body, the needle sheath 317 and the puncture needle 326 are arranged in a reverse rotating mode, a formed hemagglutination plug is easy to break down, and the radioactive particles are not prone to migrating in the process of drawing out the needle sheath 317 and the puncture needle 326.

Based on the above, the anti-shaking mechanism 2 is arranged, and the two negative pressure bags 214 special for radiotherapy arranged at the lower end of the mounting frame 201 are used for fixing the whole body of the patient, so that the influence of shaking of the body of the patient on the radiotherapy process is avoided, the puncture implantation operation is performed in the middle area of the double-arch surface of the mounting frame 201, the focus area can be fixed, and the normal operation of the puncture implantation in the radiotherapy is ensured; by arranging the auxiliary implanting mechanism 3, the driving wheel 310 drives the needle sheaths 317 to rotate towards a preset direction through the rotating ring piece 303, the pull rod 313 and the sliding rod 314, the rotating piece 321 drives the puncture needles 326 to rotate towards the opposite direction of the needle sheaths 317, the formed blood coagulation plug is easier to open by the rotary inserting mode, and the implanted radioactive particles can be prevented from migrating by the rotary pulling mode; through setting up supplementary implantation mechanism 3, many can be implanted to radioactive particle source single stroke, start driving motor 202, its output drives supplementary implantation mechanism 3 at the appropriate angle of mounting groove 210 internal rotation through gear 209, rack 211 and connecting rod 212, can implant many once more for the particle source is fan-shaped umbelliform distribution for the tumor body, and implantation speed is faster, and can evenly shine the focus target body, and the radiotherapy effect is better.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims

1. A puncture implantation auxiliary device for radiotherapy comprises a radiotherapy platform (1) and is characterized in that an anti-shaking mechanism (2) and an auxiliary implantation mechanism (3) are further arranged on the radiotherapy platform (1), two slide rails (4) which are symmetrically arranged are mounted at the side ends of the radiotherapy platform (1), fixing grooves (5) are formed in the side ends of the two slide rails (4), the anti-shaking mechanism (2) is arranged on the slide rails (4) and used for fixing a puncture position of a patient and determining the puncture position, the auxiliary implantation mechanism (3) is arranged on the anti-shaking mechanism (2) and used for synchronous spiral puncture of a plurality of needle heads, the auxiliary implantation mechanism (3) comprises a mounting seat (301), a fixing table (302), a rotary ring piece (303), a second driving motor (304) and a third driving motor (305), the mounting seat (301) is an I-shaped mechanism, and a mounting hole (306) is formed in the middle part of the mounting seat (301), the mounting hole (306) is matched with the connecting rod (212), a limit nail (307) is inserted into the side end of the mounting seat (301), a second tension spring (308) is connected onto the limit nail (307), the other end of the second tension spring (308) is fixed on the side surface of the mounting seat (301), the end portion of the limit nail (307) is clamped in the groove (213), the side end of the fixed table (302) is fixed on the mounting seat (301), the second driving motor (304) is mounted at the lower end of the fixed table (302) through the second mounting plate (309), the output end of the second driving motor (304) is connected with a driving wheel (310), an avoiding groove is further formed in the mounting seat (301), the driving wheel (310) is arranged in the avoiding groove, a plurality of uniformly distributed guide columns (311) are annularly arranged at the upper end of the fixed table (302), the side end of the rotary ring piece (303) is abutted against the driving wheel (310), and an annular through hole (312) is formed in the upper end of the rotary ring piece (303), the guide post (311) is arranged in the through hole (312), the inner side of the rotating ring piece (303) is hinged with a plurality of curved pull rods (313), the other end of each pull rod (313) is hinged with a sliding rod (314), each sliding rod (314) is provided with a guide block (315) in a sliding manner, the side end of each guide block (315) is obliquely provided with a clamp (316), each clamp (316) is internally provided with a needle sheath (317), the lower side end of the mounting base (301) is connected with a guide plate (318), each guide plate (318) is provided with a plurality of uniformly distributed guide holes (319), each needle sheath (317) is arranged in each guide hole (319) in a sliding manner, the upper end of the fixed platform (302) is further fixed with an L-shaped mounting plate III (320), the driving motor III (305) is arranged on the mounting plate III (320), the output end of the driving motor III (305) is connected with a rotating piece (321) with threads arranged at the side end, a plurality of the upper end of guide post (311) is fixed with spliced pole (322), the upper end of spliced pole (322) is rotated and is connected with baffle (323), and the side of spliced pole (322) is provided with torsional spring (324), the upper end butt of torsional spring (324) in the side of baffle (323), thread groove (325) have been seted up to the one end of baffle (323, it is provided with pjncture needle (326) to rotate between piece (321) and baffle (323), needle sheath (317) is arranged in to pjncture needle (326).

2. A puncture implantation assisting device for radiation therapy according to claim 1, characterized in that: the anti-shake mechanism (2) comprises a double-arched mounting frame (201), a first driving motor (202), a first tension spring (203) and a vacuum generator (204), the lower end of the mounting frame (201) is arranged on the sliding rail (4) in a sliding mode, the lower end of the mounting frame (201) is fixed in a fixing groove (5) through two symmetrically arranged bolts (205), a through groove (206) is formed in one side end of the mounting frame (201), sliding grooves (207) are formed in the outer side of the mounting frame (201) and on the two sides of the through groove (206), the first driving motor (202) is arranged on the mounting frame (201) through a first mounting plate (208), an output shaft of the first driving motor (202) is arranged in the through groove (206), the two ends of the first mounting plate (208) are arranged in the sliding grooves (207) in a sliding mode, the output end of the first driving motor (202) is connected with a gear (209), a curved mounting groove (210) is formed in the inner side of the mounting frame (201), be provided with rather than complex rack (211) in mounting groove (210), gear (209) mesh mutually with rack (211), and the other end of gear (209) is connected with connecting rod (212), the middle part hoop of connecting rod (212) is seted up flutedly (213), and the other end of connecting rod (212) slides and sets up on the opposite side of mounting bracket (201), on the upper end of extension spring (203) is fixed in mounting bracket (201), the lower extreme of extension spring (203) is connected with special negative pressure bag of radiotherapy (214), install in the medial extremity of mounting bracket (201) vacuum generator (204), the both ends of special negative pressure bag of radiotherapy (214) link to each other with vacuum generator (204).

3. A puncture implantation assisting device for radiation therapy according to claim 1, characterized in that: the upper end part of the puncture needle (326) is arranged in a thread way and is matched with the threads of the rotating part (321) and the baffle plate (323).

4. A puncture implantation assisting device for radiation therapy according to claim 1, characterized in that: the upper end of the mounting plate III (320) is positioned at two sides of the driving motor III (305) and is provided with a notch, and the vertical projection of the needle sheath (317) and the puncture needle (326) is arranged in the notch.

5. A puncture implantation assisting device for radiation therapy according to claim 1, characterized in that: the guide plate (318) can move at the lower end part of the mounting seat (301), and the upper ports of the guide holes (319) are rounded.