Perineal prostate puncture frame

Abstract

The utility model relates to the field of puncture frames, in particular to a perineal prostate puncture frame which comprises a mounting seat, a vertical plate is integrally arranged at the top of the mounting seat, a plurality of parallel needle groove plates are hinged to the vertical plate through a first rotating shaft, needle grooves are formed in the needle groove plates, and the needle grooves are connected with the vertical plate through a second rotating shaft. The ends, away from the vertical plate, of the needle groove plates are jointly hinged to a connecting plate through a second rotating shaft, the adjacent needle groove plates, the vertical plate and the connecting plate form a parallelogram structure, the lengths of the three needle groove plates located on the upper portion are sequentially reduced from bottom to top, and the distances between the ends, close to the connecting plate, of all the needle groove plates and the connecting plate are equal. According to the perineal prostate puncture frame, the needle groove plate is allowed to rotate within the range of + / -6 degrees, so that a doctor can finely adjust the orientation of a puncture needle within a certain range. The characteristic is lacked in the prior art, and higher flexibility is provided, so that the requirements of individual differences of different patients are better met, and the puncture precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of puncture frames, specifically a transperineal prostate puncture frame. Background Technology

[0002] Existing patent application number 202020294427.8 relates to a puncture stent and biopsy device. The puncture stent includes a main body, a rod, and a needle groove plate. The main body can connect to an ultrasound probe and has a channel, the length of which is less than the length of the rod. The rod can enter the channel from its first end and slide back and forth within the channel along a first direction parallel to the extension direction of the rod. The needle groove plate is fixed to the second end of the rod and has at least one needle hole parallel to the first direction. According to the technical solution provided by this utility model, not only is the structure of the puncture stent optimized, reducing its volume, but the manufacturing cost is also reduced. The rod and main body can be flexibly extended and retracted, making the position of the needle groove plate adjustable, thereby avoiding pressure on the patient's perineum and reducing discomfort during the puncture process. Furthermore, the puncture needle can be separated from the puncture stent and ultrasound probe during surgery, facilitating flexible operation by the doctor.

[0003] Existing patent application number 202023108374.5 relates to a puncture stent and puncture device. The puncture stent includes a frame and a perforated plate. The frame includes a clamp for holding an ultrasound probe. The perforated plate includes multiple puncture holes penetrating the plate, arranged along the height of the plate. The bottom of the perforated plate is connected to the outer wall of the clamp, and the axis of the puncture holes is parallel to the axis of the clamp. In the technical solution provided by this utility model, when the puncture stent is in use, a fan-shaped or circular puncture area can be formed as the ultrasound probe and the puncture stent rotate. The puncture needle can then perform precise punctures in this area through the perforated plate, allowing even a single row of puncture holes to meet the needs of use in one area. Furthermore, the puncture stent has a simple structure, smaller size, and is flexible and convenient to use. It also reduces patient discomfort and eliminates the need for a stepper, thus reducing surgical costs and operational difficulty.

[0004] The puncture stents proposed in the two patents mentioned above have the following drawbacks:

[0005] 1. When using a transperineal prostate puncture frame, because the needle groove is fixed and parallel to the ultrasound probe, the puncture needle can only puncture the target point at a specific fixed distance from the ultrasound probe under the guidance of the needle groove. The puncture angle cannot be adjusted, and the target point cannot be punctured flexibly.

[0006] 2. Due to the obstruction of the pubic bone, the needle groove at the top of the puncture frame is difficult to get close to the perineal skin, which reduces the accuracy of puncture to some extent.

[0007] Therefore, we propose a transperineal prostate puncture stent to solve the above problems. Utility Model Content

[0008] To solve the above-mentioned technical problems, this utility model provides a transperineal prostate puncture frame, including a mounting base. The top of the mounting base is integrally provided with a vertical plate. Several parallel needle groove plates are hinged to the vertical plate through a first rotating shaft. The needle groove plates are provided with needle grooves. The ends of the needle groove plates away from the vertical plate are hinged to a connecting plate through a second rotating shaft. Adjacent needle groove plates, vertical plates and connecting plates form a parallelogram structure.

[0009] Preferably, the lengths of the three upper needle groove plates decrease sequentially from bottom to top, and the distance between the end of all the needle groove plates closest to the connecting plate and the connecting plate is equal. A limiting component is installed on the vertical plate to keep the parallelogram structure as a rectangular structure.

[0010] Preferably, the limiting component includes a mounting plate fixed to a vertical plate, the mounting plate having a groove in which a slider is slidably connected, a transverse groove on one side of the slider, and a locking block that mates with the transverse groove fixed on one side of one of the pin slot plates. An L-shaped lever is rotatably connected to the mounting plate via a third rotating shaft, one end of the L-shaped lever having a drive post, the slider having a vertical waist-shaped groove, the drive post being disposed within the vertical waist-shaped groove, and the end of the L-shaped lever furthest from the slider being disposed outside the mounting plate.

[0011] Preferably, the mounting plate is provided with an angle limiting groove, and the L-shaped lever is disposed in the angle limiting groove to limit the rotation angle of the L-shaped lever.

[0012] Preferably, the end of the L-shaped lever is provided with a driving part, which makes it convenient to operate the L-shaped lever by hand.

[0013] Preferably, the mounting plate is provided with a mounting groove, and the connecting plate is installed in the mounting groove. The width of the mounting plate is smaller than the width of the mounting groove, so that the pin groove plate can only rotate within ±6°.

[0014] Preferably, the limiting component includes a connecting seat fixed to the vertical plate, the side wall of the connecting seat is provided with an arc-shaped part, the arc-shaped part is provided with a protrusion, and a fixing block is fixed on one of the pin groove plates, the fixing block is provided with a groove that cooperates with the protrusion.

[0015] Beneficial effects

[0016] Fine-tuning function:

[0017] This design allows the needle groove plate to rotate within a range of ±6°, enabling physicians to fine-tune the orientation of the puncture needle within a certain range. This feature, lacking in existing technologies, provides greater flexibility to better meet the needs of individual patient differences and improve puncture accuracy.

[0018] Adaptation to the pubic bone structure:

[0019] The relatively short end of the needle groove plate in this design effectively avoids the pubic bone. This is crucial for practical operation, as the presence of the pubic bone can obstruct the needle from reaching the target location. By optimizing the design of the needle groove plate, the puncture process can be performed closer to the perineal skin, improving the success rate of the puncture. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;

[0021] Figure 2 This is a schematic diagram showing the relative positions of the grooves in Embodiment 1 of this utility model;

[0022] Figure 3 This is a schematic diagram of the cooperation between the transverse slot and the card block in Embodiment 1 of this utility model;

[0023] Figure 4 This is a schematic diagram showing the relative positions of the card blocks in Embodiment 1 of this utility model;

[0024] Figure 5 This is a schematic diagram of the slider structure of Embodiment 1 of this utility model;

[0025] Figure 6 This is a schematic diagram of the fixing block structure of Embodiment 2 of this utility model;

[0026] Figure 7 This is a schematic diagram of the fixed block structure of Embodiment 2 of this utility model.

[0027] The following are the labeling elements in the diagram: 1. Mounting base; 2. Vertical plate; 3. First rotating shaft; 4. Needle groove plate; 5. Needle groove; 6. Second rotating shaft; 7. Connecting plate; 8. Limiting component; 9. Mounting plate; 10. Slide groove; 11. Slider; 12. Horizontal slot; 13. Locking block; 14. Third rotating shaft; 15. L-shaped lever; 16. Drive column; 17. Vertical waist-shaped groove; 18. Angle limiting groove; 19. Drive unit; 20. Mounting groove; 21. Connecting base; 22. Arc-shaped part; 23. Protrusion; 24. Fixing block; 25. Locking groove. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Implementation Category 1:

[0030] Please refer to the following: Figures 1 to 5 A transperineal prostate biopsy frame includes a mounting base 1 with an integrally formed vertical plate 2 at its top. The mounting base 1 is used to fix the device to an ultrasound probe, ensuring the stability of the entire device. Several parallel needle groove plates 4 are hinged to the vertical plate 2 via a first pivot 3. Each needle groove plate 4 has a needle groove 5 for guiding the puncture needle. The end of the needle groove plate 4 away from the vertical plate 2 is hinged to a connecting plate 7 via a second pivot 6, so that adjacent needle groove plates 4, the vertical plate 2, and the connecting plate 7 form a parallelogram structure. The three upper needle groove plates 4 decrease in length from bottom to top. This design ensures that the ends of the needle groove plates 4 are relatively short, effectively avoiding the pubic bone, and the distance between the end of all needle groove plates 4 near the connecting plate 7 and the connecting plate 7 is equal.

[0031] To maintain the parallelogram structure as a rectangle, a limiting component 8 is installed on the vertical plate 2. This component includes a mounting plate 9 fixed to the vertical plate 2. The mounting plate 9 has a groove 10 inside, and a slider 11 is slidably connected within the groove 10. One side of the slider 11 has a transverse slot 12, and one side of one of the needle groove plates 4 has a locking block 13 that mates with the transverse slot 12. An L-shaped lever 15 is rotatably connected to the mounting plate 9 via a third rotating shaft 14. One end of the L-shaped lever 15 has a drive post 16, and the slider 11 has a vertical waist-shaped groove 17, in which the drive post 16 is located. The end of the L-shaped lever 15 away from the slider 11 is located outside the mounting plate 9 and is equipped with a drive part 19 for easy manual operation by the doctor. In addition, the mounting plate 9 has an angle limiting groove 18 to limit the rotation angle of the L-shaped lever 15, ensuring structural stability and safety.

[0032] Instructions for use: Securely mount the mounting base 1 onto the ultrasonic probe, then insert the puncture needle into the needle groove 5. Slightly rotating the puncture needle will rotate the needle groove plate 4 relative to the vertical plate 2. Because the mounting plate 9 has a mounting groove 20, and the connecting plate 7 is installed within the mounting groove 20, and the width of the mounting plate 9 is smaller than the width of the mounting groove 20, the needle groove plate 4 can only be finely adjusted within a range of ±6° to meet different puncture requirements.

[0033] Locking Mechanism: When it is necessary to fix the position of the needle groove plate 4, the doctor only needs to move the drive unit 19 to rotate the L-shaped lever 15 along the third rotating shaft 14. At this time, the drive column 16 at the end of the L-shaped lever 15 will push the slider 11 to slide along the slide groove 10 until the transverse locking groove 12 engages with the locking block 13. In this way, the adjacent needle groove plate 4, vertical plate 2 and connecting plate 7 form a stable rectangular structure.

[0034] Implementation Category Two:

[0035] Please refer to the following: Figures 6 to 7The limiting component 8 includes a connecting seat 21 fixed to the vertical plate 2. The connecting seat 21 has an arc-shaped portion 22 on its side wall, and a protrusion 23 on the arc-shaped portion 22. A fixing block 24 is fixed on one of the pin groove plates 4, and the fixing block 24 has a slot 25 that mates with the protrusion 23. Through the cooperation of the protrusion 23 and the slot 25, the angle locking of the parallelogram structure can be completed.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A transperineal prostate puncture frame, characterized in that, The utility model provides a kind of needle installation seat, including mounting seat (1), the top of mounting seat (1) is integrally provided with vertical plate (2), and a plurality of parallel needle slot plates (4) are hingedly connected on the vertical plate (2) by first rotating shaft (3), needle slot (5) is provided on the needle slot plate (4), and the end of the needle slot plate (4) away from the vertical plate (2) is hingedly connected with connecting plate (7) by second rotating shaft (6), and adjacent needle slot plate (4), vertical plate (2) and connecting plate (7) form parallelogram structure.

2. The transperineal prostate biopsy frame of claim 1, wherein, The vertical plate (2) is provided with a limiting assembly (8) for maintaining the parallelogram structure as a rectangular structure.

3. The transperineal prostate biopsy holder of claim 2, wherein, The limiting assembly (8) includes a mounting plate (9) fixed to the vertical plate (2), a sliding groove (10) is provided in the mounting plate (9), a sliding block (11) is slidably connected in the sliding groove (10), a transverse clamping groove (12) is provided on one side of the sliding block (11), one of the needle slot plates (4) is fixed with a clamping block (13) matched with the transverse clamping groove (12), an L-shaped lever (15) is rotatably connected to the mounting plate (9) by a third rotating shaft (14), one end of the L-shaped lever (15) is provided with a driving column (16), a vertical waist-shaped groove (17) is provided in the sliding block (11), the driving column (16) is arranged in the vertical waist-shaped groove (17), and the end of the L-shaped lever (15) away from the sliding block (11) is arranged outside the mounting plate (9).

4. The transperineal prostate biopsy holder of claim 3, wherein, An angle limiting groove (18) is provided on the mounting plate (9), and the L-shaped lever (15) is arranged in the angle limiting groove (18).

5. The transperineal prostate biopsy frame of claim 3, wherein, An actuating portion (19) is provided at the end of the L-shaped lever (15).

6. The transperineal prostate biopsy frame of claim 3, wherein, An installation groove (20) is provided on the mounting plate (9), and the connecting plate (7) is installed in the installation groove (20).

7. The transperineal prostate biopsy frame of claim 1, wherein, The lengths of the upper three needle slot plates (4) gradually decrease from bottom to top, and the distances between the ends of all the needle slot plates (4) close to the connecting plate (7) and the connecting plate (7) are equal.

8. The transperineal prostate biopsy frame of claim 2, wherein, The limiting assembly (8) includes a connecting seat (21) fixed to the vertical plate (2), an arc-shaped portion (22) is provided on the side wall of the connecting seat (21), a convex point (23) is provided on the arc-shaped portion (22), one of the needle slot plates (4) is fixed with a fixed block (24), and a clamping groove (25) matched with the convex point (23) is provided on the fixed block (24).

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