Prostate puncture practice device based on PSMAPET imaging technology

Abstract

This invention belongs to the field of medical technology, specifically relating to a prostate biopsy practice device based on PSMAPET imaging technology. It includes a fixation base and a biopsy model. The fixation base has a clamp for placing a probe and a biopsy positioning block. The biopsy model includes a training box with an injection port. Inside the training box are a rectal model and a prostate model. The rectal model is connected to the outside of the training box. A fixing rod connects the prostate model and the training box. The prostate model is a hollow structure with a first pre-reserved opening. The top of the training box has a second pre-reserved opening and a ball-jointed adjusting component. The adjusting component includes a hinge ball and a screw. A sleeve is installed in the hinge ball, and the screw is screwed into the sleeve. A biopsy ball is installed at the bottom of the screw. This invention addresses the problem that current biopsy models are difficult to set different lesion locations for different cases, hindering the accumulation of different biopsy experiences by trainees.

Description

Technical Field

[0001] This invention belongs to the field of medical technology, specifically relating to a prostate biopsy practice device based on PSMAPET imaging technology. Background Technology

[0002] Prostate biopsy is the definitive and best diagnostic method for prostate cancer. There are two approaches to prostate biopsy: transperineal and transrectal. Prostate biopsy requires a high level of skill from the surgeon, and diligent practice is the fastest way to improve this skill. Current biopsy models are mostly made of gel based on human anatomy. While these models allow for training, they have significant limitations. They make it difficult to set different lesion locations for different cases, hindering the accumulation of diverse biopsy experience for trainees. Summary of the Invention

[0003] In view of the problems mentioned in the background art above, the present invention provides a prostate puncture practice device based on PSMAPET imaging technology, which is used to solve the problem that the current puncture model is difficult to set different lesion locations according to different cases for different types of practice, and it is inconvenient for trainees to accumulate different puncture experience.

[0004] The technical solution adopted in this invention is as follows: A prostate biopsy practice device based on PSMAPET imaging technology includes a fixing base and a biopsy model. The fixing base is equipped with a fixing clamp for placing a probe and a biopsy positioning block. The biopsy model includes a training box with an injection port. The training box contains a rectal model and a prostate model. The rectal model is connected to the outside of the training box. A fixing rod connects the prostate model and the training box. The prostate model is a hollow structure with a first reserved opening. The top of the training box has a second reserved opening and an adjusting component is ball-jointed. The adjusting component includes a hinge ball and a screw. A sleeve is installed in the hinge ball, and the screw is screwed into the sleeve. A biopsy ball is installed at the bottom end of the screw.

[0005] Based on the above technical solution, the present invention has made the following improvements: Furthermore, the training box is equipped with a ball collar, which has a first groove and a second groove. The first groove divides the ball collar into two halves, and a locking clamp with an adjusting plate is installed in the second groove. By rotating the adjusting plate to tighten the locking clamp, the ball collar can be pulled towards the center to clamp the articulated ball. After the position of the piercing ball is adjusted, the articulated ball can be fixed without manual holding.

[0006] Furthermore, the articulated ball has a stepped hole, and a guide block is provided within the stepped hole. A first groove matching the guide block is provided on the outer wall of the sleeve. The articulated ball has an installation groove and a third groove, which are connected. A C-shaped spring ring is installed within the third groove. A linkage block is slidably installed within the installation groove. One end of the linkage block contacts the C-shaped spring ring, and the other end is located within the stepped hole. The end face of the linkage block has a wedge surface and is located at the bottom of the sleeve. When the position of the piercing ball is adjusted axially by rotating the screw, the sleeve moves by axially pressing the screw, squeezing the wedge surface of the linkage block. This pushes the linkage block to move, squeezing the C-shaped spring ring to expand its contact with the inner wall of the ball collar, thereby restricting the rotation of the articulated ball and making the adjustment of the piercing ball more convenient.

[0007] Furthermore, a first return spring is provided below the sleeve, a limit ring is installed on the guide block, the limit ring is fixed to the guide block by screws, a top ring is provided in the mounting groove, a push rod is provided at one end of the linkage block, the push rod passes through the top ring and contacts the C-shaped spring coil, and a second return spring is provided between the linkage block and the top ring. Under the action of the first return spring, the sleeve can be automatically reset after being pressed, and under the action of the second return spring, the linkage block can be automatically reset after being moved.

[0008] Furthermore, an adjusting post is provided at the top of the screw, and the adjusting post has anti-slip texture, making the rotation of the screw more convenient.

[0009] Furthermore, both the training box and the prostate model are made of transparent material, and a shielding film is attached to the end of the training box near the puncture positioning block. This allows for direct observation of the puncture ball from the side for easy adjustment, and also allows for guidance from others during the puncture process. Simultaneously, the shielding of the front end of the positioning block prevents the trainee from directly observing the inside of the training box, thus avoiding any impact on the training effect.

[0010] Furthermore, the training box is equipped with a suction cup at the bottom. The suction cup facilitates the fixation of the training box and prevents it from moving during puncture practice.

[0011] The beneficial effects of this invention are: By using a puncture model to simulate the structure of the human prostate, puncture practice can be conducted. Rotating the articulated ball allows the position of the puncture ball to be changed on the same spherical surface, with the articulated ball as the center and the distance between the articulated ball and the puncture ball as the radius. Rotating the screw can change the distance between the articulated ball and the puncture ball, thus changing the adjustable range of the puncture ball. This allows the puncture ball to be positioned in different positions within the prostate model, establishing different case models to facilitate puncture practice in different situations, thereby better accumulating puncture experience. Attached Figure Description

[0012] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings; Figure 1 This is a schematic diagram of a prostate puncture practice device based on PSMAPET imaging technology in an embodiment of the present invention; Figure 2 for Figure 1 Enlarged structural diagram at point A; Figure 3 This is a schematic diagram of the longitudinal structure of a prostate puncture practice device based on PSMAPET imaging technology in an embodiment of the present invention. Figure 1 ; Figure 4 for Figure 3 Enlarged structural diagram at point B; Figure 5 for Figure 4 Enlarged structural diagram at point C; Figure 6 This is a schematic diagram of the disassembled structure of the limiting ring in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the adjusting component in an embodiment of the present invention; Figure 8 This is a schematic diagram of the longitudinal section structure of the hinged ball in an embodiment of the present invention; The symbols for the main components are explained below: Fixed base 1, probe 11, puncture positioning block 12, training box 21, rectal model 22, injection port 23, second reserved port 24, prostate model 3, fixed rod 31, first reserved port 32, ball collar 4, first groove 41, second groove 42, locking clamp 43, adjusting plate 431, adjusting component 5, hinge ball 51, screw 52, ​​puncture ball 521, adjusting column 522, stepped hole 53, guide block 531, mounting slide 532, top ring 533, third groove 54, linkage block 55, top rod 551, second return spring 552, C-shaped spring ring 56, sleeve 57, first slide 571, first return spring 572, limit ring 59, screw 591. Detailed Implementation

[0013] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] like Figures 1-3As shown, a prostate biopsy training device based on PSMAPET imaging technology includes a fixing base 1 and a biopsy model. The fixing base 1 is equipped with a fixing clip for placing a probe 11 and a biopsy positioning block 12. The biopsy model includes a training box 21 with an injection port 23. The training box 21 contains a rectal model 22 and a prostate model 3. The rectal model 22 is connected to the outside of the training box 21. A fixing rod 31 connects the prostate model 3 to the training box 21, fixing the prostate model 3 inside the training box 21. Type 3 is a hollow structure with a first reserved opening 32. The training box 21 has a second reserved opening 24 on the top and an adjusting component 5 is ball-jointed. The adjusting component 5 includes a hinge ball 51 and a screw 52. A sleeve 57 is installed in the hinge ball 51, and the screw 52 is screwed into the sleeve 57. A puncture ball 521 is installed at the bottom of the screw 52. The puncture device 521 simulates lesions in the prostate. By puncturing the puncture ball 521, the trainee can practice. The position of the puncture ball 521 can be changed according to the PSMAPET images of different cases to simulate different cases, thereby allowing the trainee to accumulate different puncture experiences.

[0015] like Figure 2 As shown, the training box 21 is provided with a ball collar 4, and the ball collar 4 is provided with a first groove 41 and a second groove 42. The first groove 41 divides the ball collar 4 into two halves, and a locking clamp 43 with an adjusting plate 431 is installed in the second groove 42. By rotating the adjusting plate 431 to tighten the locking clamp 43, the ball collar 4 can be pulled towards the center to clamp the articulated ball 51. After the position of the piercing ball 521 is adjusted, the articulated ball 51 can be fixed without manual holding.

[0016] like Figures 4-8 As shown, the hinge ball 51 has a stepped hole 53, and a guide block 531 is provided inside the stepped hole 53. The outer wall of the sleeve 57 has a first groove 571 that matches the guide block 531. The hinge ball 51 has a mounting groove 532 and a third groove 54, which are connected. A C-shaped spring ring 56 is installed in the third groove 54. Under the action of elasticity, the C-shaped spring ring 56 can automatically fit into the third groove 54, and when the inner wall of the C-shaped spring ring 56 is compressed, it can automatically unfold. A linkage block 55 is slidably installed inside the sleeve 57. One end of the linkage block 55 contacts the C-shaped spring ring 56, and the other end is located in the stepped hole 53. The end face of the linkage block 55 is provided with a wedge surface and is located at the bottom of the sleeve 57. When the position of the piercing ball 521 is adjusted axially by rotating the screw 52, ​​the sleeve 57 is moved by pressing the screw 52 axially to squeeze the wedge surface of the linkage block 55, which can push the linkage block 55 to move and squeeze the C-shaped spring ring 56 to expand its contact with the inner wall of the ball collar 4, thereby restricting the rotation of the hinged ball 51 and making the adjustment of the piercing ball 521 more convenient.

[0017] like Figure 4 , Figure 5 As shown, a first reset spring 572 is provided below the sleeve 57, and a limit ring 59 is installed on the guide block 531. The limit ring 59 is fixed to the guide block 531 by screws 591, which can prevent the sleeve 57 from detaching from the stepped hole 53. A top ring 533 is provided in the mounting groove 532. A push rod 551 is provided at one end of the linkage block 55. The push rod 551 passes through the top ring 533 and contacts the C-shaped spring ring 56. A second reset spring 552 is provided between the linkage block 55 and the top ring 533. Under the action of the first reset spring 572, the sleeve 57 can be reset by itself after being pressed. Under the action of the second reset spring 552, the linkage block 55 can be reset by itself after being moved.

[0018] like Figure 7 As shown, the top of the screw 52 is provided with an adjusting post 522, and the adjusting post 522 is provided with anti-slip texture. This makes the rotation of the screw 52 more convenient.

[0019] Specifically, both the training box 21 and the prostate model 3 are made of transparent material, and a shielding film is attached to the end of the training box 21 near the puncture positioning block 12. The puncture ball 521 can be directly observed from the side for easy adjustment, and others can guide the puncture from the side during the puncture process. At the same time, the front end of the positioning block 12 is shielded so that the trainee cannot directly observe the situation inside the training box 21, thus avoiding affecting the training effect.

[0020] Specifically, the bottom of the training box 21 is equipped with a suction cup, which facilitates the fixation of the training box 21 and prevents it from moving during puncture practice.

[0021] In practical applications, the position of the puncture ball 521 is adjusted using PSMA PET images to simulate corresponding cases. During the adjustment process, the screw 52 is rocked with the articulated ball 51 as the center, which allows the puncture ball 521 to move within the prostate model 3. At the same time, rotating the screw 52 changes the distance between the articulated ball 51 and the puncture ball 521 to adjust the position of the puncture ball 521. After the adjustment is completed, rotating the adjusting plate 431 tightens the locking band 43, which can bring the ball collar 4 towards the center to clamp the articulated ball 51 and fix the rod, thus completing the establishment of the case model. Then, the trainee operates the probe 11 in front of the training box 21 to detect the position of the puncture ball 521 and then performs puncture practice.

[0022] The above provides a detailed description of a prostate biopsy practice device based on PSMAPET imaging technology provided by the present invention. The specific embodiments described are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A prostate biopsy practice device based on PSMAPET imaging technology, comprising a fixing base (1) and a biopsy model, wherein the fixing base (1) is provided with a fixing clamp for placing a probe (11), and the fixing base (1) is provided with a biopsy positioning block (12), characterized in that: The puncture model includes a training box (21), which has an injection port (23). The training box (21) contains a rectal model (22) and a prostate model (3). The rectal model (22) is connected to the outside of the training box (21). A fixing rod (31) connects the prostate model (3) to the training box (21). The prostate model (3) is hollow and has a first reserved opening (32). (21) A second reserved opening (24) is provided at the top and an adjusting component (5) is ball-jointed thereon. The adjusting component (5) includes a hinge ball (51) and a screw (52). A sleeve (57) is installed in the hinge ball (51). The screw (52) is screwed into the sleeve (57). A piercing ball (521) is installed at the bottom end of the screw (52). A ball collar (4) is provided on the training box (21). A first groove (41) and a second groove (42) are provided on the ball collar (4). The two grooves (42) are as follows: the first groove (41) divides the ball collar (4) into two halves; the second groove (42) is equipped with a locking clamp (43) with an adjusting piece (431); the hinge ball (51) has a stepped hole (53) with a guide block (531) inside; the outer wall of the sleeve (57) has a first sliding groove (571) that matches the guide block (531); and the hinge ball (51) has an installation... The mounting groove (532) and the third groove (54) are connected. A C-shaped spring ring (56) is installed in the third groove (54). A linkage block (55) is slidably installed in the mounting groove (532). One end of the linkage block (55) is in contact with the C-shaped spring ring (56), and the other end is located in the stepped hole (53). The end face of the linkage block (55) is provided with a wedge surface and is located at the bottom of the sleeve (57).

2. The prostate biopsy practice device based on PSMAPET imaging technology according to claim 1, characterized in that: A first reset spring (572) is provided below the sleeve (57). A limit ring (59) is installed on the guide block (531). The limit ring (59) is fixed on the guide block (531) by screws (591). A top ring (533) is provided in the mounting groove (532). A push rod (551) is provided at one end of the linkage block (55). The push rod (551) passes through the top ring (533) and contacts the C-shaped spring ring (56). A second reset spring (552) is provided between the linkage block (55) and the top ring (533).

3. The prostate biopsy practice device based on PSMAPET imaging technology according to claim 1, characterized in that: The screw (52) is provided with an adjustment post (522) at the top, and the adjustment post (522) is provided with anti-slip texture.

4. The prostate biopsy training device based on PSMAPET imaging technology according to claim 1, characterized in that: Both the training box (21) and the prostate model (3) are made of transparent material, and a shielding film is attached to one end of the training box (21) near the puncture positioning block (12).

5. The prostate biopsy practice device based on PSMAPET imaging technology according to claim 4, characterized in that: The training box (21) has a suction cup at the bottom.

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