A 3D printed positioning device for prostate tumor radiotherapy

Abstract

The present invention relates to the field of radiation, and in particular to a 3D printed positioning device for prostate tumor radiotherapy, comprising a positioning frame, one end of which is symmetrically mounted with two T-shaped guide frames, the two T-shaped guide frames are arranged in parallel, the outer sides of the two T-shaped guide frames are slidably mounted with guide seats, the front ends of the two guide seats are fixedly mounted with extension frames, the ends of the two extension frames are mounted with clamps, the side of the positioning frame is fixedly mounted with a bracket, the end of the bracket is bent upward, the end of the bracket is mounted with a lifting member, and the end of the lifting member is mounted with a support plate. The present invention ensures the radiotherapy effect, facilitates the subsequent puncture operation, and is also convenient for use.

Description

Technical Field

[0001] The present invention relates to the field of radiation, and in particular to a 3D printed positioning device for prostate tumor radiotherapy. Background Art

[0002] Prostate tumor radiotherapy is an important means of treating prostate cancer. Its principle is to irradiate the tumor site with high-energy rays, radioactive ions and other radiation to destroy the genetic material structure of cancer tissue cells and cause them to die, thereby achieving the effect of treating prostate cancer. Prostate radiotherapy can be divided into many types, including external radiotherapy, close-range radiotherapy, proton and heavy ion radiotherapy, intensity-modulated radiotherapy and stereotactic radiotherapy.

[0003] Among them, close-range radiotherapy is to implant radioactive particles directly into the prostate through puncture technology under the guidance of rectal ultrasound, so that the radiation is concentrated in the prostate tumor tissue for radiotherapy. This operation method requires ensuring that the puncture needle is parallel to the ultrasound probe during puncture to ensure its puncture accuracy. However, in the actual operation process, puncture is mostly performed by the medical staff's feeling. It is difficult to ensure that the puncture needle and the ultrasound probe are fully parallel during the process, resulting in errors in puncture and affecting the subsequent radiotherapy effect. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a 3D printed positioning device for prostate tumor radiotherapy.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a 3D printed positioning device for prostate tumor radiotherapy, comprising a positioning frame, two T-shaped guide frames are symmetrically installed at one end of the positioning frame, the two T-shaped guide frames are arranged in parallel, guide seats are slidably installed on the outer sides of the two T-shaped guide frames, extension frames are fixedly installed at the front ends of the two guide seats, clamping members are installed at the ends of the two extension frames, a bracket is fixedly installed on the side of the positioning frame, the end of the bracket is bent upward, a lifting member is installed at the end of the bracket, and a support plate is installed at the end of the lifting member.

[0006] Preferably, a connecting plate is embedded between the edges of the opposite surfaces of the two T-shaped guide frames, and the connecting plate is embedded in one end of the positioning frame. A mounting seat is fixedly installed on the other end of the positioning frame, and two clamping studs are symmetrically penetrated and tightened through the lower end of the mounting seat, and the upper end of the clamping studs extends into the interior of the mounting seat, and a clamping seat is coaxially embedded in the upper end of the clamping stud, and a rubber pad is fixedly installed on the upper end of the clamping seat.

[0007] Preferably, an upper wheel seat is fixedly installed on the inner upper end of the guide seat, an upper guide wheel is installed inside the upper wheel seat, and the upper guide wheel is affixed to the T-shaped guide frame, side wheel seats are fixedly installed on both sides of the inner part of the guide seat, side guide wheels are installed inside the side wheel seats, and the side guide wheels are affixed to the T-shaped guide frame, and two lower wheel seats are symmetrically fixedly installed on the inner lower end of the guide seat, lower guide wheels are installed inside the lower wheel seats, and the lower guide wheels are affixed to the T-shaped guide frame.

[0008] Preferably, L-shaped frames are fixedly installed on opposite ends of the two guide seats, guide rings are fixedly installed on the ends of the L-shaped frames, guide columns are slidably installed inside the guide rings, a rubber pressure seat is fixedly installed on one end of the guide column, the rubber pressure seat is tightly attached to the T-shaped guide frame, a compression spring is wrapped around the outside of the guide column, one end of the compression spring is fixed to the rubber pressure seat, the other end of the compression spring is fixed to the guide ring, and the other end of the guide column is coaxially inlaid with a limiting cap.

[0009] Preferably, the clamping member includes two locking studs rotatably mounted at the edges of opposite end faces of two protruding frames, the outer surfaces of the locking studs are screwed with locking screw sleeves, the outer surfaces of the locking screw sleeves are symmetrically fixedly mounted with two special-shaped push frames, the ends of the two special-shaped push frames are rotatably mounted with push ring frames, the push ring frames are inclined, and the ends of the two push ring frames are connected with clamping rings.

[0010] Preferably, a protruding ear extends from the middle of the outer surface of the two clamping rings, the end of the push ring frame is rotatably connected to the end of the protruding ear, a connecting seat extends from one end of the clamping ring, connecting ears are rotatably installed on both sides of the connecting seat, and the ends of the connecting ears are fixed to the protruding frame.

[0011] Preferably, the lifting member includes a lifting stud rotatably mounted on the inner side of the end of the bracket, the lifting stud extends through the upper end of the bracket, the outer surface of the lifting stud is screwed with a lifting frame, the support plate is fixed to the end of the lifting frame, and the outer surface of the support plate is wrapped with a soft tissue layer.

[0012] Preferably, sliding lugs extend from both side edges of the lifting frame, and sliding grooves are penetrated through both sides of the bracket, and the sliding lugs fit inside the sliding grooves.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Through the two T-shaped guide frames that are symmetrically and parallelly arranged, the two guide seats can slide on the two T-shaped guide frames respectively to guide the ultrasound probe and the puncture needle, so that the puncture needle can maintain a parallel state with the ultrasound probe and penetrate into the prostate, so that the radioactive particles can be accurately placed in the prostate, and the radiation can be concentrated in the prostate tumor tissue, so as to ensure the radiotherapy effect, and through the set support plate, the support plate can be placed below the patient's testicles, and then the lifting stud is rotated to drive the lifting frame to move up. At this time, the sliding lug slides in the slide groove to assist the lifting frame to move up, so as to drive the support plate to move up through the lifting frame, so as to lift the patient's testicles, so that the patient's perineum can be fully exposed, so as to facilitate the subsequent puncture operation.

[0015] 2. By directly rotating the locking stud, the locking screw sleeve can be driven to move downward, and then the special-shaped push frame can be driven to move downward. At this time, the push ring frame moves to push the clamping ring, so that the two clamping rings can be closed to clamp and fix the ultrasonic probe, puncture needle, etc., and then it can be used. The process is simple to operate and effectively facilitates use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a 3D printed positioning device for prostate tumor radiotherapy according to the present invention;

[0017] Figure 2 A 3D printed positioning device for prostate tumor radiotherapy of the present invention Figure 1 A magnified view of middle;

[0018] Figure 3 This is a connection view of a T-shaped guide frame and a guide seat of a 3D printed positioning device for prostate tumor radiotherapy of the present invention;

[0019] Figure 4 This is a schematic diagram of another perspective of a 3D printed positioning device for prostate tumor radiotherapy according to the present invention;

[0020] Figure 5 This is a schematic diagram of a mounting seat of a 3D printed positioning device for prostate tumor radiotherapy according to the present invention;

[0021] Figure 6 This is a schematic diagram of a support plate of a 3D printed positioning device for prostate tumor radiotherapy according to the present invention;

[0022] Figure 7 This is a schematic diagram of the locking stud of a 3D printed positioning device for prostate tumor radiotherapy according to the present invention.

[0023] In the figure: 1, positioning frame; 2, mounting seat; 3, connecting plate; 4, T-shaped guide frame; 5, extending frame; 6, locking stud; 7, lifting frame; 8, support plate; 9, guide seat; 10, upper wheel seat; 11, upper guide wheel; 12, side wheel seat; 13, side guide wheel; 14, lower guide wheel; 15, lower wheel seat; 16, bracket; 17, rubber pad; 18, clamping seat; 19, clamping stud; 20, slide groove; 21, sliding lug; 22, lifting stud; 23, locking screw sleeve; 24, special-shaped push frame; 25, connecting ear; 26, guide ring; 27, connecting seat; 28, extending ear; 29, clamping ring; 30, push ring frame; 31, L-shaped frame; 32, guide column; 33, clamping spring; 34, rubber pressure seat; 35, limit cap. DETAILED DESCRIPTION

[0024] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0025] like Figure 1-Figure 7 A 3D printed positioning device for prostate tumor radiotherapy is shown, comprising a positioning frame 1, one end of which is symmetrically mounted with two T-shaped guide frames 4, the two T-shaped guide frames 4 being arranged in parallel, so that the puncture needle can be kept parallel to the ultrasonic probe and inserted into the prostate, so that the radioactive particles can be accurately placed in the prostate, and the radiation can be concentrated in the prostate tumor tissue, the outer sides of the two T-shaped guide frames 4 are slidably mounted with guide seats 9, the guide seats 9 play a guiding role in cooperation with the T-shaped guide frames 4, and the two guide seats 9 are arranged in parallel with the ultrasonic probe 4. The front ends are fixedly installed with extension frames 5, which can carry the ultrasonic probe and the puncture needle, so that the ultrasonic probe and the puncture needle are located on the side of the guide seat 9 and the T-shaped guide frame 4 to ensure that the line of sight will not be blocked by the guide seat 9 and the T-shaped guide frame 4 during operation. Clamping parts are installed at the ends of the two extension frames 5, and a bracket 16 is fixedly installed on the side of the positioning frame 1. The end of the bracket 16 is bent upward, and a lifting member is installed at the end of the bracket 16. A support plate 8 is installed at the end of the lifting member. The support plate 8 serves to lift the patient's testicles.

[0026] A connecting plate 3 is embedded between the edges of the opposite surfaces of the two T-shaped guide frames 4. The connecting plate 3 penetrates and is embedded in one end of the positioning frame 1. The connecting plate 3 plays a role in fixing the T-shaped guide frame 4. A mounting seat 2 is fixedly installed on the other end of the positioning frame 1. The mounting seat 2 can be engaged with the edge of the operating table. Two clamping studs 19 are symmetrically penetrated and tightened on the lower end of the mounting seat 2. The upper end of the clamping stud 19 extends into the interior of the mounting seat 2. A clamping seat 18 is coaxially embedded on the upper end of the clamping stud 19. The clamping stud 19 can drive the clamping seat 18 to move for clamping. A rubber pad 17 is fixedly installed on the upper end of the clamping seat 18. The rubber pad 17 plays a role in increasing friction, and the mounting seat 2 is clamped to the edge of the operating table. The clamping stud 19 is then rotated to move the clamping seat 18 upward to tighten against the edge of the operating table, so that the positioning frame 1 can be fixed on the operating table.

[0027] An upper wheel seat 10 is fixedly installed on the inner upper end of the guide seat 9, and an upper guide wheel 11 is installed inside the upper wheel seat 10. The upper wheel seat 10 plays a role of supporting the upper guide wheel 11, and the upper guide wheel 11 is attached to the T-shaped guide frame 4. Side wheel seats 12 are fixedly installed on both sides of the inner part of the guide seat 9, and side guide wheels 13 are installed inside the side wheel seats 12. The side wheel seats 12 play a role of supporting the side guide wheels 13, and the side guide wheels 13 are attached to the T-shaped guide frame 4. Two lower wheel seats 15 are symmetrically fixedly installed on the inner lower end of the guide seat 9, and a lower guide wheel 14 is installed inside the lower wheel seat 15. The lower wheel seat 15 plays a role of supporting the lower guide wheel 14, and the lower guide wheel 14 is attached to the T-shaped guide frame 4. The upper guide wheel 11, the side guide wheels 13, and the lower guide wheel 14 enable the guide seat 9 to move on the T-shaped guide frame 4 for guidance.

[0028] The opposite ends of the two guide seats 9 are fixedly installed with L-shaped frames 31, and the ends of the L-shaped frames 31 are fixedly installed with guide rings 26, and the L-shaped frames 31 play a role in fixing the guide rings 26. The guide rings 26 are slidably installed with guide posts 32 inside, and the guide rings 26 and guide posts 32 play a role in guiding the rubber pressure seat 34. One end of the guide post 32 is fixedly installed with a rubber pressure seat 34, and the rubber pressure seat 34 is tightly attached to the T-shaped guide frame 4. The outer side of the guide post 32 is wrapped with a compression spring 3 3. One end of the compression spring 33 is fixed to the rubber pressure seat 34. The compression spring 33 can press the rubber pressure seat 34 onto the T-shaped guide frame 4 to appropriately increase the resistance of the guide seat 9 when moving on the T-shaped guide frame 4, so that the ultrasonic probe and the puncture needle will not move by themselves during operation. The other end of the compression spring 33 is fixed to the guide ring 26. The other end of the guide column 32 is coaxially inlaid with a limiting cap 35. The limiting cap 35 prevents the guide column 32 from separating from the guide ring 26.

[0029] The clamping member includes two locking studs 6 rotatably mounted at the edges of the opposite end faces of the two protruding frames 5. The outer surfaces of the locking studs 6 are tightened with locking screw sleeves 23. The locking studs 6 and the locking screw sleeves 23 play the role of driving the special-shaped push frame 24 to move. The outer surface of the locking screw sleeve 23 is symmetrically fixed with two special-shaped push frames 24. The ends of the two special-shaped push frames 24 are rotatably mounted with push ring frames 30. The special-shaped push frames 24 play the role of driving the push ring frames 30 to move. The push ring frames 30 are inclined. The push ring frames 30 are arranged obliquely, and the ends of the two push ring frames 30 are connected with clamping rings 29. The push ring frames 30 play the role of pushing the clamping rings 29, and rotate the locking stud 6 to drive the locking screw sleeve 23 to move downward, thereby driving the special-shaped push frame 24 to move downward. At this time, the push ring frame 30 moves to push the clamping ring 29, so that the two clamping rings 29 can be closed to clamp and fix the ultrasonic probe, puncture needle, etc., so that the ultrasonic probe is fixed on the lower extension frame 5 and the puncture needle is fixed on the upper extension frame 5.

[0030] A protruding ear 28 extends from the middle of the outer surface of the two clamping rings 29, and the end of the push ring frame 30 is rotatably connected to the end of the protruding ear 28. The protruding ear 28 serves to facilitate the connection between the push ring frame 30 and the clamping ring 29. A connecting seat 27 extends from one end of the clamping ring 29, and connecting ears 25 are rotatably installed on both sides of the connecting seat 27. The connecting seat 27 and the connecting ear 25 serve to rotatably install the clamping ring 29 on the protruding frame 5, and the end of the connecting ear 25 is fixed to the protruding frame 5.

[0031] The lifting member includes a lifting stud 22 rotatably mounted on the inner side of the end of the bracket 16, the lifting stud 22 passes through the upper end of the bracket 16, the outer surface of the lifting stud 22 is screwed with the lifting frame 7, the lifting stud 22 plays a role in driving the lifting frame 7 to move, the support plate 8 is fixed to the end of the lifting frame 7, the lifting frame 7 plays a role in supporting the support plate 8, the outer surface of the support plate 8 is wrapped with a soft tissue layer, which can improve the comfort when supporting the testicles, the lifting stud 22 is rotated to drive the lifting frame 7 to move upward, at this time the sliding lug 21 slides in the slide groove 20 to assist the lifting frame 7 to move upward, so as to drive the support plate 8 to move upward through the lifting frame 7, so as to lift the patient's testicles and fully expose the patient's perineum.

[0032] Sliding lugs 21 extend from the edges of both sides of the lifting frame 7, and sliding grooves 20 are penetrated on both sides of the bracket 16. The sliding lugs 21 and the sliding grooves 20 play a role in guiding the lifting frame 7. The sliding lugs 21 fit inside the sliding grooves 20. Some of the above-mentioned components such as the positioning frame 1, the mounting seat 2, the lifting frame 7, the bracket 16, the support plate 8, the clamping ring 29, the guide seat 9, the T-shaped guide frame 4, etc. are all made by 3D printing.

[0033] When in use, the mounting seat 2 is clamped on the edge of the operating table, and then the clamping stud 19 is rotated to move the clamping seat 18 upward to press against the edge of the operating table so that the positioning frame 1 can be fixed on the operating table. At this time, the support plate 8 is located below the patient's testicles. Then the lifting stud 22 is rotated to drive the lifting frame 7 to move upward. At this time, the sliding lug 21 slides in the slide groove 20 to assist the lifting frame 7 to move upward, so as to drive the support plate 8 to move upward through the lifting frame 7 to lift the patient's testicles so that the patient's perineum can be fully exposed. Then the locking stud 6 is directly rotated to drive the locking screw sleeve 23 to move downward, and then drive the special-shaped push frame 24 to move downward. At this time, the push ring frame 30 moves to push the clamp ring 29, so that the two clamp rings 29 can be closed to clamp and fix the ultrasound probe, puncture needle, etc., so that the ultrasound probe is fixed on the lower extension frame 5 and the puncture needle is fixed on the upper extension frame 5. Then, under the guidance of the lower T-shaped guide frame 4 and the guide seat 9, the ultrasound probe is extended into the rectum to locate the diseased area of ​​the prostate. Then, under the guidance of the upper T-shaped guide frame 4 and the guide seat 9, the puncture needle is inserted into the prostate in a direction parallel to the ultrasound probe, so that the radioactive particles can be accurately placed in the prostate, allowing the radiation to be concentrated in the prostate tumor tissue for radiotherapy.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A 3D printed positioning device for prostate tumor radiotherapy, comprising a positioning frame (1), characterized in that: Two T-shaped guide frames (4) are symmetrically mounted on one end of the positioning frame (1), the two T-shaped guide frames (4) are arranged in parallel, guide seats (9) are slidably mounted on the outer sides of the two T-shaped guide frames (4), extension frames (5) are fixedly mounted on the front ends of the two guide seats (9), and clamping members are mounted on the ends of the two extension frames (5), a bracket (16) is fixedly mounted on the side of the positioning frame (1), the end of the bracket (16) is bent upward, a lifting member is mounted on the end of the bracket (16), and a support plate (8) is mounted on the end of the lifting member, The lifting member comprises a lifting stud (22) rotatably mounted on the inner side of the end of the bracket (16), the lifting stud (22) extending through the upper end of the bracket (16), the outer surface of the lifting stud (22) being screwed with the lifting frame (7), the support plate (8) being fixed to the end of the lifting frame (7), the outer surface of the support plate (8) being wrapped with a soft tissue layer, sliding lugs (21) extending from the edges of both sides of the lifting frame (7), and sliding grooves (20) penetrating both sides of the bracket (16), the sliding lugs (21) being fitted into the interior of the sliding grooves (20).

2. A 3D printed positioning device for prostate tumor radiotherapy according to claim 1, characterized in that: A connecting plate (3) is embedded between the edges of the opposite surfaces of the two T-shaped guide frames (4); the connecting plate (3) penetrates and is embedded in one end of the positioning frame (1); a mounting seat (2) is fixedly mounted on the other end of the positioning frame (1); two clamping studs (19) are symmetrically penetrated and screwed through the lower end of the mounting seat (2); the upper ends of the clamping studs (19) extend into the interior of the mounting seat (2); the upper ends of the clamping studs (19) are coaxially embedded with a clamping seat (18); and a rubber pad (17) is fixedly mounted on the upper end of the clamping seat (18).

3. The 3D printed positioning device for prostate tumor radiotherapy according to claim 1, characterized in that: An upper wheel seat (10) is fixedly mounted on the inner upper end of the guide seat (9), an upper guide wheel (11) is mounted inside the upper wheel seat (10), and the upper guide wheel (11) is attached to the T-shaped guide frame (4); side wheel seats (12) are fixedly mounted on both sides of the inner side of the guide seat (9), side guide wheels (13) are mounted inside the side wheel seats (12), and the side guide wheels (13) are attached to the T-shaped guide frame (4); two lower wheel seats (15) are symmetrically fixedly mounted on the inner lower end of the guide seat (9), lower guide wheels (14) are mounted inside the lower wheel seats (15), and the lower guide wheels (14) are attached to the T-shaped guide frame (4).

4. The 3D printed positioning device for prostate tumor radiotherapy according to claim 1, characterized in that: An L-shaped frame (31) is fixedly mounted on opposite ends of the two guide seats (9), a guide ring (26) is fixedly mounted on the end of the L-shaped frame (31), a guide column (32) is slidably mounted inside the guide ring (26), a rubber pressure seat (34) is fixedly mounted on one end of the guide column (32), the rubber pressure seat (34) is tightly attached to the T-shaped guide frame (4), a compression spring (33) is wound around the outside of the guide column (32), one end of the compression spring (33) is fixed to the rubber pressure seat (34), the other end of the compression spring (33) is fixed to the guide ring (26), and the other end of the guide column (32) is coaxially inlaid with a limiting cap (35).

5. The 3D printed positioning device for prostate tumor radiotherapy according to claim 1, characterized in that: The clamping member comprises two locking studs (6) rotatably mounted at the edges of opposite end faces of two protruding frames (5), the outer surfaces of the locking studs (6) being screwed with locking screw sleeves (23), the outer surfaces of the locking screw sleeves (23) being symmetrically fixedly mounted with two special-shaped push frames (24), the ends of the two special-shaped push frames (24) being rotatably mounted with push ring frames (30), the push ring frames (30) being inclined, and the ends of the two push ring frames (30) being connected with clamping rings (29).

6. A 3D printed positioning device for prostate tumor radiotherapy according to claim 5, characterized in that: A protruding ear (28) is extended from the middle of the outer surface of the two clamping rings (29), and the end of the push ring frame (30) is rotatably connected to the end of the protruding ear (28). A connecting seat (27) is extended from one end of the clamping ring (29), and connecting ears (25) are rotatably installed on both sides of the connecting seat (27), and the end of the connecting ear (25) is fixed to the protruding frame (5).

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