A laminar spreader and prosthesis implantation device

Abstract

The utility model provides a kind of lamina distraction and prosthesis implantation device, it is mainly related to medical instrument field.A kind of lamina distraction and prosthesis implantation device, including support pipe cover.The utility model has the beneficial effect that by being provided with the lamina forceps structure of the spacing and the inclination angle of adjustable telescopic structure and rotating structure, it is adjusted for different shape lamina structure, further by being provided with the conical support block of the orientation change driven by screw rod in lamina forceps interior, the conical support block position is adjusted by screw rod, for the slight adjustment lamina forceps opening angle, and lamina forceps can be supported by conical support block and stay in the opening angle required without manual keeping, ensure lamina distraction process speed controllable and keep lamina distraction stability, further in device middle part setting the prosthesis implantation needle tube driven by electric screw rod, by electrically driven to prevent shaking problem when artificial injection, further enhance instrument applicability.

Description

Technical Field

[0001] This utility model mainly relates to the field of medical devices, specifically a laminar expansion and prosthesis implantation device. Background Technology

[0002] The human spine includes the spinal canal structure. The spinal canal can become narrowed due to various reasons, such as developmental spinal stenosis, cervical spondylosis, intervertebral disc herniation, ossification of the posterior longitudinal ligament, and hypertrophy of the ligamentum flavum. If spinal stenosis occurs, it can lead to compression of the spinal cord, causing symptoms such as axial pain, pain and numbness in the limbs, muscle weakness, or even paralysis, which seriously affects people's daily lives.

[0003] Open-door laminoplasty (e.g., double-door or semi-open-door laminoplasty) is a commonly used surgical method to expand the spinal canal. In spinal laminectomy, the surgical approach typically includes "single-door" or "double-door." Current single-door surgeries usually employ a unilateral incision method to open the laminae, using simple tools such as forceps and hooks to lift the lamina. In single-door surgeries, the muscles and ligaments attached to the spinous processes are often thoroughly dissected, providing ample surgical space and eliminating the need for precise opening. Therefore, simple tools like forceps and hooks are sufficient for opening and maintaining the laminae in this type of surgery. However, sometimes bilateral incisions are required to open the gaps, elevate the spinous processes, and insert filler into the gaps for fixation with bone plates. In practice, the laminae opening instruments need to possess stability and the ability to fine-tune the instrument angle according to different surgical situations. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a laminar expansion and prosthesis implantation device. To achieve the above objectives, this utility model employs the following technical solution: A laminectomy and prosthesis implantation device includes a support tube sleeve with a telescopic tube slidably connected inside. A sliding block groove is formed on the upper part of the support tube sleeve, and a sliding block is slidably connected to the sliding block groove and fixedly connected to the upper part of the telescopic tube. A fixing knob is fixedly connected to the upper side of the support tube sleeve via a threaded connection. A rotating disk is fixedly provided at the outer end of the support tube sleeve and the telescopic tube. A rotating column is fixedly provided on the outer side of the rotating disk. A laminectomy clamp is rotatably connected to the rotating column. A screw disk is fixedly connected to the rotating column via a threaded connection. A fixing screw seat is fixedly provided on one side of the rotating disk, and a fixing screw is threadedly connected to the fixing screw seat. A positioning ring groove is formed on the inner side of the laminectomy clamp, and the fixing screw is installed inside the positioning ring groove. Furthermore, spring-loaded hanging posts are fixedly provided on the outer sides of the two handles of the vertebral plate clamp, and tension springs are connected between the spring-loaded hanging posts on corresponding sides. A threaded rod seat is fixedly provided at the rear of one handle of the vertebral plate clamp, and a conical support block seat is fixedly provided at the front of one handle of the vertebral plate clamp. A threaded rod is provided inside the threaded rod seat and threadedly engaged with it. A conical support block is fixedly fixedly on the upper part of the conical support block seat at the end of the threaded rod and slidably connected to it. A sliding support seat is fixedly provided inside the other handle of the vertebral plate clamp at the corresponding position of the conical support block and slides against the conical support block.

[0005] Furthermore, a lifting telescopic tube is fixedly provided at the lower part of the support tube sleeve, a lifting telescopic column is provided inside the lifting telescopic tube, a sliding lifting plate is fixedly provided at the end of the lifting telescopic column, a sliding groove is provided at the front of the sliding lifting plate, a movable seat plate is provided inside the sliding groove and slidably connected thereto, rotating threaded rods are provided on both sides of the movable seat plate and rotatably connected thereto, a motor support plate is provided on the upper part of the rotating threaded rods on both sides and rotatably connected thereto, a servo motor is fixedly provided on the upper part of the motor support plate, the output end of the servo motor passes through the motor support plate and a gear one is fixedly sleeved on its outer periphery, a gear two is sleeved on the outer periphery of the rotating threaded rod and meshes with the gear one, a threaded lifting plate is sleeved on the outer periphery of the rotating threaded rods on both sides, a prosthetic needle tube push column is fixedly provided at the lower part of the threaded lifting plate, a prosthetic needle tube is fixedly connected to the lower part of the movable seat plate, the prosthetic needle tube push column is installed inside the prosthetic needle tube and slidably connected thereto, and a lifting adjustment column is fixedly connected to the rear part of the sliding lifting plate.

[0006] Furthermore, suction cup support tubes are fixedly provided on both sides of the support tube sleeve and the telescopic tube. A suction cup lifting column is provided inside the suction cup support tube. A fixed suction cup is fixedly provided at the bottom of the suction cup lifting column. A fixed knob is provided on one side of the suction cup support tube and is threadedly engaged with it.

[0007] Compared with the existing technology, the beneficial effects of this utility model are: 1. By setting a vertebral lamina clamp structure with adjustable spacing and tilt angle through telescopic and rotating structures, it is used to make targeted adjustments for different vertebral lamina structures. Furthermore, by setting a conical support block inside the vertebral lamina clamp, which is driven by a threaded rod to change its orientation, the position of the conical support block is finely adjusted by the threaded rod to finely adjust the opening angle of the vertebral lamina clamp. The vertebral lamina clamp can be supported by the conical support block and held at the required opening angle without manual maintenance, ensuring that the speed of the vertebral lamina opening process is controllable and maintaining the stability of the vertebral lamina after opening. 2. A prosthesis implantation needle driven by an electric screw is set in the middle of the device. The electric drive prevents the shaking problem during manual injection. The needle structure with flexible lifting and fine adjustment can adapt to a variety of different injection positions and can be finely adjusted in angle, further enhancing the applicability of the device. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the vertebral plate clamp structure of this utility model; Figure 3 This is a schematic diagram of the support tube sleeve structure of this utility model; Figure 4 This is a schematic diagram of the prosthetic needle structure of this utility model.

[0009] The following are the labels in the attached diagram: 1. Support sleeve; 2. Telescopic tube; 3. Sliding block groove; 4. Sliding block; 5. Fixing knob one; 6. Rotating shaft disc; 7. Rotating shaft column; 8. Pellets; 9. Screw disc; 10. Fixing screw seat; 11. Fixing screw; 12. Positioning ring groove; 13. Spring hanger; 14. Tension spring; 15. Threaded rod seat; 16. Conical support block seat; 17. Threaded rod; 18. Conical support block; 19. Sliding support seat; 20. 21. Lifting telescopic tube; 22. Lifting telescopic column; 23. Sliding lifting plate; 24. Sliding groove; 25. Moving seat plate; 26. Rotating threaded rod; 27. Motor support plate; 28. Servo motor; 29. ​​Gear one; 20. Gear two; 31. Threaded lifting plate; 32. Prosthetic needle tube push column; 33. Prosthetic needle tube; 34. Lifting adjustment column; 35. Suction cup support frame tube; 36. Suction cup lifting column; 37. Fixed suction cup; 38. Fixed knob two. Detailed Implementation

[0010] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0011] Example: A laminar expansion and prosthesis implantation device like Figure 1-4 As shown, a laminar lamina distraction and prosthesis implantation device has the following specific structure: A laminectomy and prosthesis implantation device includes a support sleeve 1, with a telescopic tube 2 slidably connected inside the support sleeve 1. The width between two laminectomy clamps 8 is adjusted by adjusting the telescopic length of the telescopic tube 2 within the support sleeve 1. A sliding block groove 3 is formed on the upper part of the support sleeve 1, with a sliding block 4 slidably connected inside the sliding block groove 3 and fixedly connected to the upper part of the telescopic tube 2. The sliding block 4 and the sliding block groove 3 cooperate to limit their rotation. A fixing knob 5 is fixedly connected to the upper side of the support sleeve 1 via a threaded connection. The fixing knob 5 abuts against the telescopic tube 2 to fix the telescopic tube 2 inside the support sleeve 1. A rotating disc 6 is fixedly provided at the outer ends of the support sleeve 1 and the telescopic tube 2. A rotating shaft column 7 is fixedly provided on the outer side of the rotating shaft disk 6. A vertebral plate clamp 8 is rotatably connected to the outer circumference of the rotating shaft column 7. The vertebral plate clamp 8 is used to open the vertebral plate. A screw disk 9 is provided on the outer side of the rotating shaft column 7 and is threadedly fixed to it. The vertebral plate clamp 8 is fixed to the outer circumference of the rotating shaft column 7 by the screw disk 9. A fixing screw seat 10 is fixed on one side of the rotating shaft disk 6. A fixing screw 11 is provided inside the fixing screw seat 10 and is threadedly connected to it. A positioning ring groove 12 is opened on the inner side of the vertebral plate clamp 8. The fixing screw 11 is installed in the positioning ring groove 12 and abuts and fixes to it, so that the vertebral plate clamp 8 can be rotated and adjusted to a certain angle and fixed by the fixing screw 11. Spring-loaded posts 13 are fixedly installed on the outer sides of the handles on both sides of the vertebral plate clamp 8. A tension spring 14 is connected between the corresponding spring-loaded posts 13 on one side. The tension spring 14 contracts to stretch and close the vertebral plate clamp 8. A threaded rod seat 15 is fixedly installed at the rear of one handle of the vertebral plate clamp 8, and a conical support block seat 16 is fixedly installed at the front of one handle of the vertebral plate clamp 8. A threaded rod 17 is threadedly fitted inside the threaded rod seat 15, and a conical support block 18 is coaxially fixed at the end of the threaded rod 17. The upper part of the conical support block seat 16 is slidably connected to it. On the other side of the vertebral plate clamp 8, the handle is fixedly provided with a sliding support seat 19 corresponding to the position of the conical support block 18, which is in abutment and slidably connected to the conical support block 18. By rotating the threaded rod 17 and the threaded rod seat 15 to engage with the threaded connection, the conical support block 18 is moved on the upper part of the conical support block seat 16. Furthermore, the conical support block 18 pushes the sliding support seat 19 and separates the handles of the vertebral plate clamp 8 on both sides, thereby opening the end of the vertebral plate clamp 8.

[0012] The lower part of the support sleeve 1 is fixedly provided with a lifting telescopic tube 20. A lifting telescopic column 21 is provided inside the lifting telescopic tube 20. A sliding lifting plate 22 is fixedly provided at the end of the lifting telescopic column 21. A sliding groove 23 is provided at the front of the sliding lifting plate 22. A movable seat plate 24 is provided inside the sliding groove 23 and slidably connected to it. Rotating threaded rods 25 are provided on both sides of the movable seat plate 24 and rotatably connected to it. A motor support plate 26 is provided on the upper part of the rotating threaded rods 25 and rotatably connected to them. A servo motor 27 is fixedly provided on the upper part of the motor support plate 26. The output end of the servo motor 27 passes through the motor support plate 26 and a gear 28 is fixedly sleeved on its outer periphery. A gear 29 is sleeved on the outer periphery of the rotating threaded rods 25 and meshes with the gear 28. Threaded lifting plates 30 are sleeved on the outer periphery of the rotating threaded rods 25 on both sides. A threaded lifting plate 30 is fixedly provided at the lower part of the threaded lifting plate 30. The prosthetic needle tube pusher 31 is installed inside the prosthetic needle tube 32 and slidably connected to it. The servo motor 27 rotates the rotating threaded rod 25 that meshes with its output end, thereby driving the threaded lifting plate 30 to rise and fall. This, in turn, drives the prosthetic needle tube pusher 31 to push the prosthetic molding fluid out of the needle tip of the prosthetic needle tube 32 for injection. The sliding lifting plate 22 is fixedly connected to the rear of the sliding lifting plate 22 and the lifting telescopic column 21 to slide and rise with damping inside the lifting telescopic tube 20. This, in turn, drives the moving seat plate 24 to rise and fall, allowing the needle tip of the prosthetic needle tube 32 to be inserted into the injection position for injection.

[0013] The support sleeve 1 and the telescopic tube 2 are fixedly provided with suction cup support frame tubes 34 on both sides. The suction cup support frame tube 34 is provided with a suction cup lifting column 35 inside. The bottom of the suction cup lifting column 35 is fixed with a fixed suction cup 36. The fixed suction cup is attached to the patient's skin for fixation. The height of the device can be adjusted by the suction cup lifting column 35. A fixing knob 37 is provided on one side of the suction cup support frame tube 34 and is threaded to it. The extension length of the suction cup lifting column 35 is fixed by the fixing knob 37 to keep the height stable.

[0014] This solution also includes a controller, the location of which is set by the operator according to the actual situation during operation. The controller is used to control the electrical components used in this solution, including but not limited to sensors, motors, telescopic rods, water pumps, solenoid valves, heating wires, heat pumps, displays, computer input devices, switches, communication devices, lights, speakers, and microphones. The controller is an Intel processor, AMD processor, PLC controller, ARM processor, or microcontroller. It is used in conjunction with a motherboard, memory modules, storage media, and power supply, which is AC power or a lithium battery. When a display screen is provided, a graphics card is also included. For the operating principle of the controller, please refer to "Principles of Automatic Control," "Microcontroller Principles and Application Simulation Cases," and "Sensor Principles and Applications" published by Tsinghua University Press. Other books in this field can also be consulted. Other automation control and electrical components not mentioned are knowledge well known to those skilled in the art and will not be described in detail here.

[0015] Working principle: In use, the distance between the two vertebral clamps 8 is adjusted by extending the length of the support sleeve 1 and the telescopic tube 2, thereby attracting the fixed suction cup 36 to a suitable position. The height of the device is adjusted by extending the suction cup lifting column 35. The rotation angle of the vertebral clamps 8 is adjusted and fixed by the fixing screw 11. The vertebral clamps 8 are then inserted into the vertebral lamina by adjusting the device height. The conical support block 18 is moved above the conical support block seat 16 by rotating the threaded rod 17 and engaging the threaded rod seat 15. The conical support block 18 pushes the sliding support seat 19 and pulls the two sides of the vertebral clamps 8 into place. The handles of the laminectomy clamp 8 are separated, opening the end of the laminectomy clamp 8 and widening the intervertebral space. The lifting adjustment column 33 drives the sliding lifting plate 22 and the lifting telescopic column 21 to slide and lift within the lifting telescopic tube 20 with damping, thereby driving the moving seat plate 24 to rise and fall. The prosthesis needle tube 32 can then be inserted into the injection position. Furthermore, the servo motor 27 rotates, driving the rotating threaded rod 25, which meshes with its output end, to rotate, thereby driving the threaded lifting plate 30 to rise and fall. This, in turn, drives the prosthesis needle tube push column 31 to push within the prosthesis needle tube 32, thus pushing the prosthesis molding fluid out through the prosthesis needle tube 32 needle for injection, completing the prosthesis implantation.

[0016] In explaining this utility model, it should be noted that the terms indicating location are only for ease of description and understanding, and are not intended to limit the installation location of specific technical features. Other possible installation methods are not excluded.

[0017] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A laminar dilator and prosthesis implantation device comprising a support sleeve (1), characterized in that: The support sleeve (1) has a telescopic tube (2) inside which it is slidably connected. The upper part of the support sleeve (1) has a sliding block groove (3). The sliding block groove (3) has a sliding block (4) inside which it is slidably connected and fixedly connected to the upper part of the telescopic tube (2). A fixing knob (5) is fixedly provided on one side of the upper part of the support sleeve (1) and is threadedly connected to it. A rotating disk (6) is fixedly provided at the outer end of the support sleeve (1) and the telescopic tube (2). The outer side of the rotating disk (6) A rotating shaft column (7) is fixedly provided. A truncated plate clamp (8) is fitted around the outer periphery of the rotating shaft column (7) and rotated thereto. A screw disc (9) is provided on the outer side of the rotating shaft column (7) and is threadedly fixed thereto. A fixing screw seat (10) is fixedly provided on one side of the rotating shaft disc (6). A fixing screw (11) is provided inside the fixing screw seat (10) and threaded thereto. A positioning ring groove (12) is opened on the inner side of the truncated plate clamp (8), and the fixing screw (11) is installed inside the positioning ring groove (12).

2. The laminar spreader and prosthesis implantation device according to claim 1, characterized in that: Spring hangers (13) are fixedly provided on the outer sides of the handles on both sides of the vertebral plate clamp (8). A tension spring (14) is connected between the spring hangers (13) on the corresponding side. A threaded rod seat (15) is fixedly provided at the rear of the handle on one side of the vertebral plate clamp (8). A conical support block seat (16) is fixedly provided at the front of the handle on one side of the vertebral plate clamp (8). A threaded rod (17) is provided inside the threaded rod seat (15) and threadedly engaged with it. A conical support block (18) is fixedly provided coaxially at the end of the threaded rod (17) and is installed on the upper part of the conical support block seat (16) and slidably connected with it. A sliding support seat (19) is fixedly provided inside the handle on the other side of the vertebral plate clamp (8) at the corresponding position of the conical support block (18) and slides against the conical support block (18).

3. The laminar spreader and prosthesis implantation device of claim 2, wherein: The lower part of the support sleeve (1) is fixedly provided with a lifting telescopic tube (20), and the lifting telescopic tube (20) is provided with a lifting telescopic column (21) inside. The end of the lifting telescopic column (21) is fixedly provided with a sliding lifting plate (22). The front part of the sliding lifting plate (22) is provided with a sliding groove (23). The sliding groove (23) is provided with a movable seat plate (24) slidably connected to it. The movable seat plate (24) is provided with rotating threaded rods (25) on both sides and rotatably connected to it. The upper part of the rotating threaded rods (25) on both sides is provided with a motor support plate (26) rotatably connected to it. The upper part of the motor support plate (26) is fixedly provided with a servo motor (27). The output end of the machine (27) passes through the motor support plate (26) and is fixedly fitted with a gear one (28) on its outer periphery. The outer periphery of the rotating threaded rod (25) is fitted with a gear two (29) that meshes with the gear one (28). The outer periphery of the rotating threaded rod (25) on both sides is fitted with a threaded lifting plate (30). The lower part of the threaded lifting plate (30) is fixedly fitted with a prosthetic needle tube push column (31). The lower part of the movable seat plate (24) is fixedly connected with a prosthetic needle tube (32). The prosthetic needle tube push column (31) is installed inside the prosthetic needle tube (32) and slidably connected to it. The rear part of the sliding lifting plate (22) is fixedly connected with a lifting adjustment column (33).

4. The laminar spreader and prosthesis implantation device of claim 3, wherein: The support sleeve (1) and the telescopic tube (2) are fixedly provided with suction cup support frame tubes (34) on both sides. The suction cup support frame tube (34) is provided with a suction cup lifting column (35) inside. The bottom of the suction cup lifting column (35) is fixedly provided with a fixed suction cup (36). The suction cup support frame tube (34) is provided with a fixed knob (37) on one side for threaded engagement.

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