A corrector for improving the puncture accuracy of a sealed seed source implantation needle

Abstract

The present invention discloses a corrector for improving the puncture accuracy of a sealed seed source implant needle, and relates to the field of medical devices. The corrector comprises a needle storage portion, which is composed of a needle storage cylinder, a supporting ring plate installed at one end of the needle storage cylinder, and a filling bin connected to the other end of the needle storage cylinder, wherein the filling bin is connected to and provided with two symmetrically distributed supporting bins; an annular needle changing turntable rotatably arranged in the filling bin, and an anti-sway component for stabilizing the implant needle; an auxiliary portion; after the present invention drives the anti-sway component to move to a position where it no longer blocks the implant needle through a transmission component, the transmission component continues to operate, which will drive the annular needle changing turntable to rotate, so that the implant needle reaches the needle changing position, and then the needle pushing component and the needle feeding component are used in coordination to complete automatic needle changing, which can reduce the time waste caused by the difficulty in needle changing, and compared with using two driving mechanisms to separately drive the annular needle changing turntable and the anti-sway component, the transmission component provided can reduce the number of power sources such as motors used, and is more power-saving.

Description

Technical Field

[0001] The present invention relates to the technical field related to correctors, and in particular to a corrector capable of improving the puncture accuracy of a sealed seed source implantation needle. Background Art

[0002] As a radioactive medical product, sealed seed sources have achieved remarkable results in recent years in the close-range implantation treatment of malignant tumors. Clinicians usually use seed implantation needles to implant them into patients during surgery. The needle tip and needle body of the seed implantation needle (a semi-flexible needle) interact with the punctured tissue. The interaction between the needle and the tissue will cause the seed implantation needle to bend during the seed implantation process, resulting in the needle tip being unable to reach the planned position and low puncture accuracy.

[0003] For example, the invention patent with patent application number 202211473339.4 discloses a corrector for improving the puncture accuracy of a prostate particle implantation needle, including a base, a needle body support frame, an electric drive mechanism and two guide rails are arranged on the base, and a sensor smooth moving platform is arranged on the two guide rails, and the electric drive mechanism is used to drive the sensor smooth moving platform to move on the two guide rails; the correction force can be used to correct the position of the needle tip during the puncture process so that the needle tip reaches the target point, avoiding the doctor from pulling out the needle body and performing a secondary puncture to achieve precise puncture, but the following shortcomings still exist: during one operation, multiple implantation needles need to be implanted according to the lesion situation. The above technical solution requires the needle body support frame to be disassembled before the implantation needle can be replaced. There is a problem of difficulty in replacing the implantation needle, and the operation requires the implantation of multiple implantation needles, which will inevitably prolong the operation time. Summary of the invention

[0004] In order to solve the defects in the prior art, the present invention provides a corrector for improving the puncture accuracy of a sealed seed source implantation needle.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The present invention discloses a corrector for improving the puncture accuracy of a sealed seed source implantation needle, comprising a needle storage part, which is composed of a needle storage cylinder, a support ring plate installed at one end of the needle storage cylinder, and a filling bin connected to the other end of the needle storage cylinder, wherein the filling bin is connected to two symmetrically distributed support bins;

[0007] An annular needle-changing turntable and an anti-shake assembly for stabilizing the implant needle are rotatably arranged in the filling bin, wherein a transmission gear ring is arranged on the outer wall of the annular needle-changing turntable;

[0008] The auxiliary part includes an outer cover, a telescopic rod for driving the outer cover, a T-shaped cylinder arranged in the outer cover for installing the anti-sway component, and a transmission component for driving the annular needle-changing turntable and the T-shaped cylinder, wherein the outer cover is provided with a first limiting ring plate and a second limiting ring plate;

[0009] Two needle delivery assemblies symmetrically arranged in the needle storage cylinder, a needle pushing assembly for pushing the implant needle into the needle delivery area, and a correction assembly for correcting the implant needle;

[0010] A centralized exhaust ring installed in the outer cover and a control system arranged on one side of the limiting ring plate.

[0011] As a preferred technical solution of the present invention, the transmission assembly includes a fan-shaped gear installed at one end of the telescopic rod and meshing with a transmission gear ring, a driven wheel sleeved and fixed to the other end of the telescopic rod, a transmission cylinder arranged in a T-shaped cylinder, and a double-axis motor installed on one side of a limiting ring plate, the fan-shaped gear is located in one of the supporting bins, a spiral slide is symmetrically arranged on the outer wall of the transmission cylinder, a transmission rod is also connected to one end of the transmission cylinder, a return spring for connecting the T-shaped cylinder and the limiting ring plate is arranged on the outer sleeve of the transmission rod, and guide columns cooperating with the spiral slide are symmetrically arranged on the inner wall of the T-shaped cylinder, an annular air path is opened on the T-shaped cylinder, and a plurality of extension blocks arranged in an annular distribution manner are also arranged on the outer wall of one end of the T-shaped cylinder, an external threaded interface connected with the annular air path through a connecting hole is provided on one side of the extension block, and a ventilation interface connected with the annular air path through an air duct is also provided on the outside of the T-shaped cylinder;

[0012] One of the output shafts of the dual-shaft motor is connected to the transmission rod, and the other output shaft is connected to a transmission head which is connected to the driven wheel via a transmission belt.

[0013] As a preferred technical solution of the present invention, the anti-sway assembly consists of a support tube and an expansion airbag connected to the support tube and wrapped around the outside of the support tube. One end of the support tube is provided with an internal thread interface extending inwardly and capable of being screwed to an external thread interface.

[0014] As a preferred technical solution of the present invention, the control system includes a control module, an air pump and a power supply for power supply. The control module is electrically connected to the power supply, the air pump and the dual-axis motor through wires. The air outlet end of the air pump is connected to a three-way valve, and the other two ends of the three-way valve are respectively connected to the ventilation interface and the centralized exhaust ring air inlet through air ducts.

[0015] As a preferred technical solution of the present invention, the needle feeding assembly includes a linear drive module installed on one side of the support ring plate and a drive cylinder arranged on one side of the moving body of the linear drive module, and the piston end of the drive cylinder is connected to a clamping member for clamping the implant needle.

[0016] As a preferred technical solution of the present invention, the pin pushing assembly includes a pin pushing cylinder installed in another supporting bin, and the movable end of the pin pushing cylinder is connected to the pin pushing member.

[0017] As a preferred technical solution of the present invention, the correction assembly includes an electric clamp installed on one side of the support ring plate and a correction piece driven by the electric clamp, the correction piece is composed of an arc-shaped connecting section connected to the clamping jaw of the electric clamp and an arc-shaped correction section for correcting the implant needle, one end of the arc-shaped connecting section is connected to the arc-shaped correction section via an oblique connecting section.

[0018] As a preferred technical solution of the present invention, a guide ring is provided in the loading bin, and a guide ring groove for rotationally cooperating with the guide ring is provided on one side of the annular needle-changing turntable.

[0019] As a preferred technical solution of the present invention, a plurality of U-shaped filling holes for loading implant needles are provided on the annular needle changing turntable, and the plurality of U-shaped filling holes are arranged in an annular distribution manner, and two groups of support members for supporting implant needles are also provided on the inner side of the annular needle changing turntable, and the support members are connected to the outer shell of the linear drive module via a connecting bracket, and a block for blocking the implant needle is provided on one side of one group of support members.

[0020] As a preferred technical solution of the present invention, a connecting end cover with a T-shaped cross-section is provided at one end of the loading bin, and two extension plates for sealing the supporting bin are connected to the connecting end cover, and the two ends of the telescopic rod respectively pass through the extension plate and the other supporting bin, and bearings are provided at the connection between the telescopic rod, the extension plate and the other supporting bin.

[0021] The beneficial effects of the present invention are:

[0022] 1. This corrector for improving the puncture accuracy of the sealed seed source implant needle, after the transmission component drives the anti-sway component to move to a position where it no longer blocks the implant needle, the transmission component continues to operate, which will drive the annular needle changing turntable to rotate, so that the implant needle reaches the needle changing position, and then the needle pushing component and the needle feeding component are used together to complete the automatic needle changing, which can reduce the time wasted due to the difficulty in needle changing. Compared with using two driving mechanisms to separately drive the annular needle changing turntable and the anti-sway component, the set transmission component can reduce the number of power sources such as motors used, and save more electricity.

[0023] 2. This corrector for improving the puncture accuracy of the sealed seed source implant needle uses an inflated airbag to block the implant needle to prevent the implant needle from escaping from the U-shaped filling hole. At the same time, the inflated airbag can adapt well to the shape of the implant needle, thereby effectively preventing the implant needle from shaking.

[0024] 3. This corrector for improving the puncture accuracy of the sealed seed source implant needle controls the clamping part to clamp the implant needle through the drive cylinder, and uses the linear drive module to drive the implant needle for puncture. It can accurately determine the puncture direction of the implant needle and effectively avoid puncture deviation. In the process of the implant needle being carried for puncture, the arc-shaped correction section is used to correct the implant needle, making it difficult for the implant needle to bend or deviate from the predetermined track, thereby improving the puncture accuracy of the implant needle.

[0025] 4. This corrector for improving the puncture accuracy of the sealed seed source implant needle can achieve the function of inflating and deflating multiple expansion airbags at the same time through the provision of an annular air path, connecting holes, external threaded interfaces, airways and ventilation interfaces, thereby reducing the number of pipelines used.

[0026] 5. This corrector for improving the puncture accuracy of the sealed seed source implant needle switches the three-way valve to connect the annular air path with the centralized exhaust ring, so that the gas in the expanded airbag can be discharged from the centralized exhaust ring. The gas discharged from the centralized exhaust ring is blown to the dual-axis motor to accelerate heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 It is a structural schematic diagram of a corrector for improving the puncture accuracy of a sealed seed source implantation needle according to the present invention;

[0029] Figure 2 It is a schematic diagram of the internal structure of a needle storage cylinder of a corrector for improving the puncture accuracy of a sealed seed source implantation needle according to the present invention;

[0030] Figure 3 The invention is a corrector for improving the puncture accuracy of a sealed seed source implantation needle. Figure 2 Enlarged view of point A in the middle;

[0031] Figure 4 It is a structural schematic diagram of a corrector (outer cover omitted) for improving the puncture accuracy of a sealed seed source implantation needle according to the present invention;

[0032] Figure 5 It is a schematic diagram of the disassembled structure of an annular needle-changing turntable and a filling bin of a corrector for improving the puncture accuracy of a sealed seed source implantation needle according to the present invention;

[0033] Figure 6 It is a schematic diagram of the internal structure of an outer cover of a corrector for improving the puncture accuracy of a sealed seed source implantation needle according to the present invention;

[0034] Figure 7This is a control system and transmission component distribution diagram of a corrector for improving the puncture accuracy of a sealed seed source implant needle according to the present invention;

[0035] Figure 8 It is a schematic diagram of the internal structure of a T-shaped cylinder of a corrector for improving the puncture accuracy of a sealed seed source implantation needle according to the present invention;

[0036] Fig. 9 It is a schematic structural diagram of an anti-sway component of a corrector for improving the puncture accuracy of a sealed seed source implantation needle according to the present invention;

[0037] Fig.10 The present invention is a schematic diagram of the structure of a needle delivery assembly of a corrector for improving the puncture accuracy of a sealed seed source implantation needle.

[0038] In the figure: 001, implant needle; 1, needle storage part; 11, needle storage cylinder; 12, support ring plate; 13, filling chamber; 131, guide ring; 14, support chamber; 15, connecting end cover; 16, extension plate; 2, annular needle change turntable; 21, transmission gear ring; 3, auxiliary part; 31, outer cover; 311, limit ring plate 2; 312, limit ring plate 1; 32, telescopic rod; 33, sector gear; 34, transmission cylinder; 341, spiral slide; 35, T-shaped cylinder; 351, annular air path; 352, extension block; 353, guide column; 3 6. Dual-axis motor; 361. Transmission head; 37. Transmission rod; 38. Reset spring; 4. Needle feeding assembly; 41. Linear drive module; 42. Clamping part; 43. Drive cylinder; 5. Correction assembly; 51. Electric clamp; 52. Arc correction section; 53. Arc connecting section; 54. Oblique connecting section; 6. Centralized exhaust ring; 7. Support part; 8. Needle push cylinder; 9. Anti-sway assembly; 91. Support tube; 92. Inflatable airbag; 10. Control system; 101. Power supply; 102. Control module; 103. Air pump; 104. Three-way valve. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0040] Example: Figure 1-5 As shown, the present invention is a corrector for improving the puncture accuracy of a sealed seed source implant needle, comprising a needle storage part 1, which is composed of a needle storage cylinder 11, a support ring plate 12 installed at one end of the needle storage cylinder 11, and a filling bin 13 connected to the other end of the needle storage cylinder 11, wherein the filling bin 13 is connected to two symmetrically distributed support bins 14;

[0041] The annular needle-changing turntable 2 and the anti-shake assembly 9 for stabilizing the implant needle 001 are rotated and arranged in the filling bin 13, and a transmission gear ring 21 is arranged on the outer wall of the annular needle-changing turntable 2;

[0042] The auxiliary part 3 includes an outer cover 31, a telescopic rod 32 for driving the outer cover 31, a T-shaped cylinder 35 for installing the anti-sway component 9 arranged in the outer cover 31, and a transmission component for driving the annular needle-changing turntable 2 and the T-shaped cylinder 35. The outer cover 31 is provided with a limiting ring plate 1 312 and a limiting ring plate 2 311; the limiting ring plate 1 312 and the limiting ring plate 2 311 are used to limit the T-shaped cylinder 35;

[0043] Two needle delivery assemblies 4 symmetrically arranged in the needle storage cylinder 11, a needle pushing assembly for pushing the implant needle 001 into the needle delivery area, and a correction assembly 5 for correcting the implant needle 001;

[0044] A centralized exhaust ring 6 installed in the outer cover 31 and a control system 10 arranged on one side of the limiting ring plate 312.

[0045] Specifically, a ventilation hole is opened on the outer cover body 31, and a filter is installed in the ventilation hole to reduce the probability of dust entering while maintaining ventilation.

[0046] Among them, Figure 6 , Figure 7 and Figure 8 As shown, the transmission assembly includes a sector gear 33 installed at one end of the telescopic rod 32 and meshing with the transmission gear ring 21, a driven wheel sleeved and fixed to the other end of the telescopic rod 32, a transmission cylinder 34 arranged in a T-shaped cylinder 35, and a double-axis motor 36 installed on one side of a limiting ring plate 312. The sector gear 33 is located in one of the support bins 14, and a spiral slide 341 is symmetrically arranged on the outer wall of the transmission cylinder 34. A transmission rod 37 is also connected to one end of the transmission cylinder 34. A reset spring 38 for connecting the T-shaped cylinder 35 and the limiting ring plate 312 is arranged on the outer sleeve of the transmission rod 37, and a guide column 35 matched with the spiral slide 341 is symmetrically arranged on the inner wall of the T-shaped cylinder 35. 3. An annular gas path 351 is provided on the T-shaped cylinder 35, and a plurality of extension blocks 352 arranged in an annular distribution manner are also provided on the outer wall of one end of the T-shaped cylinder 35. An external threaded interface connected to the annular gas path 351 through a connecting hole is provided on one side of the extension block 352, and a ventilation interface connected to the annular gas path 351 through an air passage is also provided on the outside of the T-shaped cylinder 35. The annular gas path 351, connecting hole, external threaded interface, air passage and ventilation interface can realize the function of simultaneously inflating and deflating multiple expansion airbags 92, thereby reducing the number of pipelines used; the telescopic rod 32 can be a manually adjustable telescopic rod structure, or a telescopic rod structure that can be electrically adjusted.

[0047] One of the output shafts of the dual-shaft motor 36 is connected to the transmission rod 37 , and the other output shaft is connected to a transmission head 361 which is connected to a driven wheel via a transmission belt.

[0048] After the inflation airbag 92 is deflated, the transmission rod 37 is controlled to rotate by the dual-axis motor 36, and the transmission cylinder 34 is rotated with the help of the transmission rod 37. When the guide column 353 is no longer blocked by the spiral slide 341, the T-shaped cylinder 35 moves in the direction of the limit ring plate 312 with the help of the elastic force of the return spring 38, and the anti-sway component 9 is moved with the T-shaped cylinder 35, so that the anti-sway component 9 no longer blocks the implant needle 001. After that, the dual-axis motor 36 continues to operate (when the spiral slide 341 does not press down the guide column 353 again), and the transmission head 361 drives the driven wheel through the transmission belt to rotate the telescopic rod 32, and the telescopic rod 32 drives the fan gear 33 to mesh with the transmission ring gear 21 for transmission, so as to control the rotation of the annular needle changing turntable 2, so that the implant needle 001 reaches the needle changing position.

[0049] Among them, Fig. 9 As shown, the anti-sway component 9 consists of a support tube 91 and an expansion airbag 92 connected to the support tube 91 and wrapped around the outside of the support tube 91. One end of the support tube 91 is provided with an internal thread interface extending inwardly thereof and capable of being screwed to an external thread interface.

[0050] With the help of the threaded connection between the internal thread interface and the external thread interface, the installation of the anti-sway component 9 is achieved, and the inflated airbag 92 is used to block the implant needle 001 to prevent the implant needle 001 from escaping from the U-shaped filling hole. At the same time, the inflated airbag 92 can adapt well to the shape of the implant needle 001, thereby effectively preventing the implant needle 001 from shaking.

[0051] Among them, Figure 6 and Figure 7 As shown, the control system 10 includes a control module 102, an air pump 103 and a power supply 101 for power supply. The control module 102 is electrically connected to the power supply 101, the air pump 103 and the dual-axis motor 36 through wires. The air outlet end of the air pump 103 is connected to a three-way valve 104. The other two ends of the three-way valve 104 are respectively connected to the ventilation interface and the air inlet of the centralized exhaust ring 6 through an air duct. The air inlet of the air pump 103 is installed with an air filter for filtering the air; the three-way valve 104 is switched to connect the air inlet with the annular air path 351, and the air pump 103 is started to inflate the inflatable airbag 92; the three-way valve 104 is switched again to connect the annular air path 351 with the centralized exhaust ring 6, so that the gas in the inflatable airbag 92 can be discharged from the centralized exhaust ring 6, and the gas discharged from the centralized exhaust ring 6 is blown to the dual-axis motor 36 to accelerate heat dissipation.

[0052] Specifically, both the limiting ring plate 1 312 and the limiting ring plate 2 311 are provided with through holes for allowing the air guide pipe to pass through. The provision of the through holes facilitates the connection between the three-way valve 104 and the air inlet and ventilation interface of the centralized exhaust ring 6.

[0053] Among them, Figure 2and Fig.10 As shown, the needle delivery assembly 4 includes a linear drive module 41 installed on one side of the support ring plate 12 and a drive cylinder 43 provided on one side of the moving body of the linear drive module 41. The piston end of the drive cylinder 43 is connected with a clamping member 42 for clamping the implant needle 001. The clamping member 42 is controlled by the drive cylinder 43 to clamp the implant needle 001. The linear drive module 41 is used to control the movement of the drive cylinder 43, thereby extending the implant needle 001 from the needle storage cylinder body 11. The linear drive module 41 can accurately determine the puncture direction of the implant needle 001, and can effectively avoid puncture deviation.

[0054] Among them, Figure 5 As shown, the needle pushing assembly includes a needle pushing cylinder 8 installed in another supporting bin 14, and the movable end of the needle pushing cylinder 8 is connected to a needle pushing member. The needle pushing member is driven by the needle pushing cylinder 8, and the implantation needle 001 reaching the needle changing position is pushed between the two clamping members 42 by the needle pushing member, and then the implantation needle 001 is clamped by the clamping member 42.

[0055] Among them, Figure 2 and Figure 3 As shown, the correction component 5 includes an electric clamp 51 installed on one side of the support ring plate 12 and a correction piece driven by the electric clamp 51, the correction piece consists of an arc-shaped connecting section 53 connected to the clamping jaws of the electric clamp 51 and an arc-shaped correction section 52 for correcting the implant needle 001, one end of the arc-shaped connecting section 53 is connected to the arc-shaped correction section 52 via an oblique connecting section 54, the implant needle 001 can only extend from the needle storage cylinder 11 after passing through the correction piece, the position of the correction piece is controlled by the electric clamp 51, so that the arc-shaped correction section 52 contacts the outer wall of the implant needle 001, and when the implant needle 001 is carried for puncture, the arc-shaped correction section 52 is used to correct the implant needle 001, so that the implant needle 001 is difficult to bend or deviate from the predetermined track, thereby improving the puncture accuracy of the implant needle 001.

[0056] Among them, Figure 5 As shown, a guide ring 131 is provided in the loading bin 13, and a guide ring groove for rotationally cooperating with the guide ring 131 is provided on one side of the annular needle changing turntable 2. The rotational cooperation between the guide ring 131 and the guide ring groove is utilized to improve the stability of the annular needle changing turntable 2 during rotation.

[0057] Among them, Figure 5As shown, the annular needle-changing turntable 2 is provided with a plurality of U-shaped filling holes for loading the implant needles 001, and the plurality of U-shaped filling holes are arranged in an annular distribution manner, and the inner side of the annular needle-changing turntable 2 is also provided with two groups of support members 7 for supporting the implant needles 001, and the support members 7 are connected to the outer shell of the linear drive module 41 via a connecting bracket, and one side of one group of support members 7 is provided with a block for blocking the implant needle 001, and the implant needle 001 is supported by the support members 7 so that the implant needle 001 can smoothly reach the position between the two clamping members 42; the implant needle 001 is blocked by the block to position the implant needle 001.

[0058] Among them, Figure 1 and Figure 4 As shown, one end of the loading bin 13 is provided with a connecting end cover 15 with a T-shaped cross-section, and two extension plates 16 for sealing the supporting bin 14 are connected to the connecting end cover 15, and the two ends of the telescopic rod 32 respectively pass through the extension plate 16 and the other supporting bin 14, and bearings are provided at the connection between the telescopic rod 32 and the extension plate 16 and the other supporting bin 14. The supporting bin 14 is sealed by the extension plate 16, and the connecting end cover 15 cooperates with the outer cover body 31 to cover the loading bin 13, which improves the aesthetics while reducing the probability of dust entering.

[0059] During operation, the length of the telescopic rod 32 is adjusted to expose the annular needle-changing turntable 2 so as to load the implant needle 001. After all the implant needles 001 are loaded, the length of the telescopic rod 32 is adjusted to cover the annular needle-changing turntable 2 again with the help of the outer cover 31. Then, the dual-axis motor 36 is started, and the transmission cylinder 34 is rotated with the help of the transmission rod 37. The guide column 353 is pressed down through the spiral slide 341 to move the T-shaped cylinder 35 to the side of the limiting ring plate 311 and compress the reset spring 38. After the T-shaped cylinder 35 moves to the predetermined position with the anti-sway component 9, the dual-axis motor 36 stops, and the air pump 103 is started to inflate the expansion airbag 92. The implant needle 001 is fixed by the inflated expansion airbag 92.

[0060] During the operation, after the inflation balloon 92 is deflated, the dual-axis motor 36 drives the transmission cylinder 34 to rotate with the help of the transmission rod 37. After the guide column 353 is no longer blocked by the spiral slide 341, the dual-axis motor 36 continues to operate, and the transmission head 361 drives the driven wheel through the transmission belt to rotate the telescopic rod 32. The telescopic rod 32 drives the fan gear 33 to engage with the transmission ring gear 21 to control the rotation of the annular needle changing turntable 2, so that the implantation needle 001 reaches the needle changing position. The implantation needle 001 that reaches the needle changing position is pushed between the two clamping members 42 by the needle pushing assembly. After the driving cylinder 43 drives the clamping member 42 to clamp the implantation needle 001, the linear driving module 41 drives the implantation needle 001 to extend it from the needle storage cylinder 11. At the same time, the correction assembly 5 is used to correct the implantation needle 001. After the puncture is completed, the implantation needle 001 is released, and the corrector can be pulled upward to make the implantation needle 001 detach from the corrector.

[0061] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A corrector for improving the puncture accuracy of a sealed seed source implant needle, characterized in that: include: The needle storage part (1) is composed of a needle storage cylinder (11), a support ring plate (12) mounted on one end of the needle storage cylinder (11), and a filling chamber (13) connected to the other end of the needle storage cylinder (11), wherein the filling chamber (13) is connected to two symmetrically distributed support chambers (14); An annular needle-changing turntable (2) and an anti-sway component (9) for stabilizing the implant needle (001) are rotatably disposed in the loading bin (13), wherein a transmission gear ring (21) is disposed on the outer wall of the annular needle-changing turntable (2); The auxiliary part (3) comprises an outer cover (31), a telescopic rod (32) for driving the outer cover (31), a T-shaped cylinder (35) arranged in the outer cover (31) for mounting an anti-sway assembly (9), and a transmission assembly for driving the annular needle-changing turntable (2) and the T-shaped cylinder (35), wherein a first limiting ring plate (312) and a second limiting ring plate (311) are arranged in the outer cover (31); Two needle delivery assemblies (4) symmetrically arranged in the needle storage cylinder (11), a needle pushing assembly for pushing the implant needle (001) into the needle delivery area, and a correction assembly (5) for correcting the implant needle (001); A centralized exhaust ring (6) installed in the outer cover (31) and a control system (10) arranged on one side of a limiting ring plate (312); The transmission assembly comprises a sector gear (33) mounted on one end of the telescopic rod (32) and meshing with the transmission gear ring (21), a driven wheel sleeved and fixed on the other end of the telescopic rod (32), a transmission cylinder (34) arranged in a T-shaped cylinder (35), and a double-axis motor (36) mounted on one side of a limiting ring plate (312), wherein the sector gear (33) is located in one of the support bins (14), and a spiral slideway (341) is symmetrically provided on the outer wall of the transmission cylinder (34), and a transmission rod (37) is further connected to one end of the transmission cylinder (34), and the outer sleeve of the transmission rod (37) is provided with a screw thread for connecting to the T-shaped cylinder. A return spring (38) is provided on the body (35) and the limiting ring plate (312), and guide pillars (353) cooperating with the spiral slideway (341) are symmetrically provided on the inner wall of the T-shaped cylinder (35), an annular air path (351) is opened on the T-shaped cylinder (35), and a plurality of extension blocks (352) arranged in an annular distribution manner are further provided on the outer wall of one end of the T-shaped cylinder (35), an external threaded interface connected to the annular air path (351) via a connecting hole is provided on one side of the extension block (352), and a ventilation interface connected to the annular air path (351) via a ventilation channel is further provided on the outside of the T-shaped cylinder (35); One of the output shafts of the dual-shaft motor (36) is connected to the transmission rod (37), and the other output shaft is connected to a transmission head (361) which is connected to the driven wheel via a transmission belt; The anti-sway component (9) is composed of a support tube (91) and an expansion airbag (92) connected to the support tube (91) and wrapped around the outside of the support tube (91); one end of the support tube (91) is provided with an internal thread interface extending inwardly thereof and capable of being screwed to an external thread interface.

2. A corrector for improving the puncture accuracy of a sealed seed source implant needle according to claim 1, characterized in that: The control system (10) comprises a control module (102), an air pump (103) and a power supply (101) for supplying power; the control module (102) is electrically connected to the power supply (101), the air pump (103) and the dual-axis motor (36) through wires; the air outlet of the air pump (103) is connected to a three-way valve (104); the other two ends of the three-way valve (104) are respectively connected to a ventilation interface and an air inlet of a centralized exhaust ring (6) through an air guide pipe.

3. A corrector for improving the puncture accuracy of a sealed seed source implantation needle according to claim 1, characterized in that: The needle delivery assembly (4) comprises a linear drive module (41) mounted on one side of a support ring plate (12) and a drive cylinder (43) provided on one side of a moving body of the linear drive module (41); a clamping member (42) for clamping the implant needle (001) is connected to a piston end of the drive cylinder (43).

4. A corrector for improving the puncture accuracy of a sealed seed source implantation needle according to claim 1, characterized in that: The pin pushing assembly comprises a pin pushing cylinder (8) installed in another supporting bin (14), and a pin pushing member is connected to the movable end of the pin pushing cylinder (8).

5. A corrector for improving the puncture accuracy of a sealed seed source implantation needle according to claim 1, characterized in that: The correction component (5) comprises an electric clamp (51) mounted on one side of a support ring plate (12) and a correction piece driven by the electric clamp (51); the correction piece comprises an arc-shaped connecting section (53) connected to the clamping jaw of the electric clamp (51) and an arc-shaped correction section (52) used for correcting the implant needle (001); one end of the arc-shaped connecting section (53) is connected to the arc-shaped correction section (52) via an oblique connecting section (54).

6. A corrector for improving the puncture accuracy of a sealed seed source implant needle according to claim 1, characterized in that: A guide ring (131) is provided in the loading bin (13), and a guide ring groove for rotationally cooperating with the guide ring (131) is provided on one side of the annular needle-changing turntable (2).

7. A corrector for improving the puncture accuracy of a sealed seed source implantation needle according to claim 3, characterized in that: The annular needle-changing turntable (2) is provided with a plurality of U-shaped loading holes for loading the implant needles (001), the plurality of U-shaped loading holes being arranged in an annular distribution manner, and the inner side of the annular needle-changing turntable (2) is also provided with two groups of support members (7) for supporting the implant needles (001), the support members (7) being connected to the outer shell of the linear drive module (41) via a connecting bracket, and a block for blocking the implant needle (001) is provided on one side of one group of the support members (7).

8. A corrector for improving the puncture accuracy of a sealed seed source implantation needle according to claim 1, characterized in that: A connecting end cover (15) having a T-shaped cross section is provided at one end of the loading bin (13); two extension plates (16) for sealing the supporting bin (14) are connected to the connecting end cover (15); and both ends of the telescopic rod (32) respectively penetrate the extension plate (16) and the other supporting bin (14); and bearings are provided at the connection between the telescopic rod (32), the extension plate (16) and the other supporting bin (14).

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