Puncture needle convenient to disassemble and assemble

Abstract

The utility model belongs to the technical field of puncture needles, and particularly relates to a puncture needle convenient to disassemble and assemble, which comprises a mechanical arm connecting seat and a puncture needle main body arranged on the outer wall of the mechanical arm connecting seat, a clamping groove is formed in the bottom end of the mechanical arm connecting seat, and a clamping block matched with the clamping groove is fixedly connected to the top end of the puncture needle main body. A through hole is formed in the center of the outer wall of the mounting plate in a penetrating mode, a plurality of evenly-distributed sliding grooves are fixedly connected to the periphery of the lower end face of the mounting plate, movable rods are slidably connected to the interiors of the multiple sliding grooves, sliding rails are fixedly connected to the two sides of the outer wall of the mechanical arm connecting base, and sliding blocks are slidably connected to the outer walls of the two sliding rails; a limiting barrel is arranged on the outer wall of the mechanical arm connecting base, and the two sliding blocks are fixedly connected to the inner wall of the limiting barrel. According to the puncture needle, the puncture needle body can be conveniently detached, operation is easy, the installation stability is enhanced, and the working intensity is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of puncture needle technology, specifically a puncture needle that is easy to assemble and disassemble. Background Technology

[0002] Percutaneous interventional surgery is a typical minimally invasive procedure that involves accurately inserting surgical instruments (such as puncture needles, biopsy needles, and ablation needles) into a patient's internal organs for tissue extraction or treatment, guided by medical imaging (ultrasound, MRI, and CT scans). Puncture needles can also be used in orthopedic surgery. Compared to manual puncture, the use of 3D path planning and real-time target tracking technologies, along with the application of puncture robots, allows for a more scientific, controllable, and predictable approach to percutaneous interventional surgery, thus improving the precision of the procedure.

[0003] In existing technologies, the connection structure between the puncture needle and the robotic arm is complex, making it inconvenient to assemble and disassemble the puncture needle, which is time-consuming, labor-intensive, and has low work efficiency, increasing the workload. Summary of the Invention

[0004] The purpose of this invention is to provide a puncture needle that is easy to assemble and disassemble, making it easy to disassemble the puncture needle body, simplifying the operation, enhancing the stability of the installation, and reducing the workload.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a puncture needle that is easy to assemble and disassemble, comprising a robotic arm connecting seat and a puncture needle body installed on the outer wall of the robotic arm connecting seat. The bottom end of the robotic arm connecting seat is provided with a slot, and the top end of the puncture needle body is fixedly connected with a locking block that matches the slot. The lower end face of the robotic arm connecting seat is fixedly connected with a mounting plate, and the center of the outer wall of the mounting plate is provided with a through hole. The periphery of the lower end face of the mounting plate is fixedly connected with multiple evenly distributed sliding grooves, and movable rods are slidably connected inside the multiple sliding grooves. Slide rails are fixedly connected to both sides of the outer wall of the robotic arm connecting seat, and sliders are slidably connected to the outer walls of the two slide rails. A limiting cylinder is provided on the outer wall of the robotic arm connecting seat, and the two sliders are fixedly connected to the inner wall of the limiting cylinder.

[0006] To facilitate the inward compression of multiple movable rods through the limiting cylinder, as a preferred embodiment of the present invention for easy disassembly and assembly of a puncture needle, the upper surface of the ends of the multiple movable rods that are far apart from each other is a first inclined surface, and the inner side of the bottom end of the limiting cylinder is a second inclined surface that matches the first inclined surface.

[0007] To improve the fixing effect of the card block, as a preferred embodiment of the present invention for easy disassembly and assembly of the puncture needle, a rubber gasket is fixedly connected to the top of the inner side of the card slot.

[0008] To facilitate the repositioning of the movable rods, as a preferred type of puncture needle for easy assembly and disassembly of this utility model, the outer walls of the multiple movable rods are provided with rectangular grooves. The lower end face of the mounting plate is fixedly connected to multiple end plates that extend into the interior of the multiple rectangular grooves. A spring is provided between the end plates and the inner walls of the rectangular grooves.

[0009] To facilitate the locking and fixing of the locking block, as a preferred embodiment of the puncture needle of this invention that is easy to assemble and disassemble, the diameter of the locking block is larger than the diameter of the puncture needle body.

[0010] In order to allow the card block to extend smoothly into the interior of the card slot, as a preferred embodiment of the puncture needle of this utility model that is easy to assemble and disassemble, the diameter of the through hole is larger than the diameter of the card slot.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] When installing the puncture needle body, the end of the puncture needle body with the locking block is inserted into the slot. The locking block and the slot match, making the puncture needle body more stable after installation. Then, the limiting cylinder is slid downward. The inner side of the limiting cylinder slides smoothly downward through the slider and the slide rail. The second inclined surface at the bottom of the limiting cylinder presses against the first inclined surface at the ends of multiple movable rods, pushing the multiple movable rods. The multiple movable rods move synchronously towards the center, thereby locking and fixing the locking block from the bottom, preventing the locking block from disengaging from the slot, and completing the installation of the puncture needle body. When disassembly is required, simply slide the limiting cylinder upward. The limiting cylinder releases the restriction on the multiple movable rods. At the same time, the multiple movable rods return to their original position under the elastic force of multiple springs. The multiple movable rods no longer lock the locking block, and the puncture needle body can be disassembled. The operation is simple, enhances the stability of installation, and reduces the workload. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a partially enlarged cross-sectional view of the present invention.

[0015] Figure 3 This is a partial structural diagram of the present invention viewed from below.

[0016] In the diagram: 1. Robotic arm connector; 2. Puncture needle body; 3. Slot; 4. Block; 5. Mounting plate; 6. Through hole; 7. Slide groove; 8. Movable rod; 9. Slide rail; 10. Limiting cylinder; 11. Slider; 12. Rubber washer; 13. Rectangular groove; 14. End plate; 15. Spring. Detailed Implementation

[0017] Please see Figures 1 to 3A puncture needle that is easy to assemble and disassemble includes a robotic arm connector 1 and a puncture needle body 2 installed on the outer wall of the robotic arm connector 1. The bottom end of the robotic arm connector 1 is provided with a slot 3. The top end of the puncture needle body 2 is fixedly connected with a locking block 4 that matches the slot 3. The lower end face of the robotic arm connector 1 is fixedly connected with a mounting plate 5. The center of the outer wall of the mounting plate 5 is provided with a through hole 6. The periphery of the lower end face of the mounting plate 5 is fixedly connected with multiple evenly distributed sliding grooves 7. Movable rods 8 are slidably connected inside the multiple sliding grooves 7. Slide rails 9 are fixedly connected to both sides of the outer wall of the robotic arm connector 1. Slider 11 is slidably connected to the outer wall of the two slide rails 9. A limit cylinder 10 is provided on the outer wall of the robotic arm connector 1. The two sliders 11 are fixedly connected to the inner wall of the limit cylinder 10.

[0018] In this embodiment: When installing the puncture needle body 2, the end of the puncture needle body 2 with the locking block 4 is inserted into the inside of the slot 3. The locking block 4 and the slot 3 engage, making the puncture needle body 2 more stable after installation. Then, the limiting cylinder 10 is slid downward. The inner side of the limiting cylinder 10 slides smoothly downward through the slider 11 and the slide rail 9. The second inclined surface at the bottom of the limiting cylinder 10 presses the first inclined surface at the end of the multiple movable rods 8, and at the same time, the pressing pushes the multiple movable rods 8. The multiple movable rods 8 move synchronously towards the center, thereby locking and fixing the locking block 4 from the bottom, preventing the locking block 4 from disengaging from the slot 3, and completing the installation of the puncture needle body 2. When disassembly is required, simply slide the limiting cylinder 10 upward. The limiting cylinder 10 releases the limiting of the multiple movable rods 8. At the same time, under the elastic force of the multiple springs 15, the multiple movable rods 8 reset, and the multiple movable rods 8 no longer engage the locking block 4, so the puncture needle body 2 can be disassembled. The operation is simple, and the stability of the installation is enhanced, reducing the workload.

[0019] As a technical optimization of this utility model, the upper part of the ends of the multiple movable rods 8 that are far apart from each other is a first inclined surface, and the inner side of the bottom end of the limiting cylinder 10 is a second inclined surface that matches the first inclined surface.

[0020] In this embodiment: by setting the first inclined surface and the second inclined surface, the limiting cylinder 10 can squeeze the movable rod 8, causing the multiple movable rods 8 to retract inward.

[0021] As a technical optimization of this utility model, a rubber gasket 12 is fixedly connected to the top of the inside of the slot 3.

[0022] In this embodiment: after inserting the card block 4 into the card slot 3, the rubber washer 12 is squeezed upward to deform the rubber washer 12, thereby generating a downward squeezing force on the card block 4. Combined with the locking and limiting of the multiple movable rods 8 at the bottom, the fixing effect of the card block 4 is improved.

[0023] As a technical optimization of this utility model, rectangular grooves 13 are provided through the outer walls of multiple movable rods 8. Multiple end plates 14 extending into the interior of multiple rectangular grooves 13 are fixedly connected to the lower end face of the mounting plate 5. Springs 15 are provided between the end plates 14 and the inner walls of the rectangular grooves 13.

[0024] In this embodiment: when multiple movable rods 8 are squeezed and restricted inside the limiting cylinder 10, multiple springs 15 are in a contracted state. When the limiting cylinder 10 moves upward and releases the restriction, the springs 15 reset and release the multiple movable rods 8 from the restriction of the locking block 4.

[0025] As a technical optimization of this utility model, the diameter of the card block 4 is larger than the diameter of the puncture needle body 2.

[0026] In this embodiment, the diameter of the locking block 4 is larger than the diameter of the puncture needle body 2, which facilitates the limiting of the locking block 4 by the movable rod 8.

[0027] As a technical optimization of this utility model, the diameter of the through hole 6 is larger than the diameter of the slot 3.

[0028] In this embodiment, the diameter of the through hole 6 is larger than the diameter of the slot 3, which facilitates the smooth entry of the card block 4 into the interior of the slot 3.

[0029] Working principle:

[0030] When installing the puncture needle body 2, the end of the puncture needle body 2 with the locking block 4 is inserted into the groove 3. The locking block 4 and the groove 3 engage, making the puncture needle body 2 more stable after installation. Then, the limiting cylinder 10 is slid downward. The inner side of the limiting cylinder 10 slides smoothly downward through the slider 11 and the slide rail 9. The second inclined surface at the bottom of the limiting cylinder 10 presses against the first inclined surface at the end of the multiple movable rods 8, and at the same time, the multiple movable rods 8 move synchronously towards the center, thereby locking and fixing the locking block 4 from the bottom, preventing the locking block 4 from disengaging from the groove 3, and completing the installation of the puncture needle body 2. When disassembly is required, simply slide the limiting cylinder 10 upward. The limiting cylinder 10 releases the limiting of the multiple movable rods 8. At the same time, under the elastic force of the multiple springs 15, the multiple movable rods 8 reset, and the multiple movable rods 8 no longer engage with the locking block 4, so the puncture needle body 2 can be disassembled. The operation is simple, enhances the stability of installation, and reduces the workload.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A puncture needle which is easy to assemble and disassemble, comprising a mechanical arm connecting seat (1) and a puncture needle body (2) installed on the outer wall of the mechanical arm connecting seat (1), characterized in that: The bottom end of the mechanical arm connecting seat (1) is provided with a clamping groove (3), the top end of the puncture needle body (2) is fixedly connected with a clamping block (4) matched with the clamping groove (3), the lower end surface of the mechanical arm connecting seat (1) is fixedly connected with a mounting plate (5), the outer wall center of the mounting plate (5) is provided with a through hole (6), the lower end surface periphery of the mounting plate (5) is fixedly connected with a plurality of evenly distributed sliding grooves (7), the interiors of the plurality of sliding grooves (7) are all slidingly connected with movable rods (8), the outer walls of both sides of the mechanical arm connecting seat (1) are fixedly connected with sliding rails (9), the outer walls of the two sliding rails (9) are slidingly connected with sliding blocks (11), the outer wall of the mechanical arm connecting seat (1) is provided with a limiting cylinder (10), and both the sliding blocks (11) are fixedly connected to the inner wall of the limiting cylinder (10).

2. The puncture needle of easy assembly and disassembly according to claim 1, characterized in that: The top end of the movable rod (8) is provided with a first inclined surface, and the bottom end of the limiting cylinder (10) is provided with a second inclined surface matched with the first inclined surface.

3. The puncture needle of easy assembly and disassembly according to claim 1, characterized in that: The inner top end of the clamping groove (3) is fixedly connected with a rubber ring (12).

4. The puncture needle of easy assembly and disassembly according to claim 1, characterized in that: The outer wall of the movable rod (8) is provided with a rectangular groove (13), the lower end surface of the mounting plate (5) is fixedly connected with a plurality of end plates (14) respectively extending into the interiors of the plurality of rectangular grooves (13), and the spring (15) is arranged between the inner wall of the end plate (14) and the rectangular groove (13).

5. The puncture needle of easy assembly and disassembly according to claim 1, characterized in that: The diameter of the clamping block (4) is greater than the diameter of the puncture needle body (2).

6. The puncture needle of easy assembly and disassembly according to claim 1, characterized in that: The diameter of the through hole (6) is greater than the diameter of the clamping groove (3).

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