Joint replacement prosthesis implantation guiding device

Abstract

The invention relates to the technical field of joint surgery, in particular to a joint replacement prosthesis implantation guiding device which comprises a base column, linkage rods are fixedly connected to the bottom ends of rotating rings, pressed wheels are rotationally connected to the bottom ends of the linkage rods, an adjusting mechanism for adjusting the position of a top ring is arranged on the base column, the adjusting mechanism comprises a mounting ring, and the mounting ring is fixedly connected with the base column. A mounting ring is arranged on the base column, a movable ring is connected to the mounting ring in a threaded mode, an extrusion ring is fixedly connected to the outer wall of the movable ring, and a pushing ring is fixedly connected to the position, corresponding to the bottom end of the extrusion ring, of the outer wall of the movable ring. By means of the guiding device, working personnel can quickly, flexibly and stably fix opening pipes of various specifications according to specific operation requirements, the universality of the guiding device is remarkably improved, the guiding device can be widely applied to various joint operation scenes, and the convenience of clinical operation is greatly improved through the extremely simple operation process.

Description

Technical Field

[0001] The present invention relates to the technical field of joint surgery, in particular to a joint replacement prosthesis implantation guide device. Background Art

[0002] The current total hip replacement surgical robot consists of a robotic arm, an optical camera, and a host computer. The optical camera obtains the spatial posture of the end of the robotic arm through a tracer fixed to the robotic arm and feeds it back to the host computer. The host computer then transmits motion instructions to the robotic arm, driving the guide at the end of the robotic arm to move precisely to the required guide position. The doctor then performs a series of subsequent operations. For example, when implanting the prosthesis, the doctor implants the acetabular prosthesis into the correct position in the patient's body by knocking the injector inside the guide.

[0003] For example, the patent document with publication number CN218943613U provides a guide, a prosthesis driving assembly and a joint replacement surgical system, wherein the guide includes a base for connecting to the end of a robotic arm; an open tube, which is arranged at the end of the base away from the robotic arm; and the open tube is provided with an opening along the axial direction; a guide groove is formed inside the open tube for guiding the driving device to be driven in a specified direction; an elastic structure is arranged on the inner circumference of the guide groove, and the elastic structure is used to absorb the radial impact force generated on the guide groove when the driving device is driven. The elastic structure in the present invention is used to absorb the radial impact force generated on the guide groove when the impact device is driven into the guide groove; when the impact force is not completely along the axial direction of the impact device rod and a radial component force is generated, the elastic structure is deformed by the force, and the radial impact component force is buffered and released, and then restored to its initial state, to ensure that the inner wall of the guide groove is not adversely affected by the large impact force until the prosthesis is fully in place according to the preoperative plan; although the above application has many beneficial effects, it still has the following shortcomings: when performing surgery on different joint parts of the patient, it is necessary to use impact devices of different diameters, which requires replacing the open tube of the corresponding diameter. However, the base column and the open tube are fixedly connected, which makes it inconvenient to replace the open tube and is greatly limited during use. Summary of the Invention

[0004] In order to solve the problem that the open tube in the prior art is difficult to replace, which results in usage restrictions on the guide device, the present invention provides a joint replacement prosthesis implantation guide device.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a joint replacement prosthesis implantation guide device, including a base column and an open tube, the base column is fixedly connected to a plurality of symmetrically arranged support rods, one end of adjacent support rods is commonly fixedly connected to a bottom rod, the bottom rods are all fixedly connected to symmetrically arranged bottom rings, the bottom rods are all rotatably connected to rotating rings, the side walls of the rotating rings are all fixedly connected to torsion springs, the top ends of the rotating rings are all fixedly connected to push rods, and the push rods are all fixedly connected to symmetrically arranged top rings; The bottom ends of the rotating rings are fixedly connected to connecting rods, and the bottom ends of the connecting rods are rotatably connected to pressure wheels. The base column is provided with an adjustment mechanism for adjusting the position of the top ring, and the adjustment mechanism includes a mounting ring, a movable ring is threadedly connected to the mounting ring, an extrusion ring is fixedly connected to the outer wall of the movable ring, a push ring is fixedly connected to the outer wall of the movable ring at a position corresponding to the bottom end of the extrusion ring, and a plurality of push rods arranged in an array are fixedly connected to the outer wall of the push ring.

[0006] Specifically, one side of the base column is fixedly connected to a base, and the base is threadedly connected to symmetrically arranged fixing bolts. There are two fixing bolts in total, and the diameters and sizes of the fixing bolts are the same.

[0007] Specifically, there are four top rings and four bottom rings, the diameters and sizes of the top rings and the bottom rings are the same, the outer layers of the top rings and the bottom rings are provided with a rubber layer, one end of the bottom rod passes through the corresponding torsion spring, one end of the torsion spring is fixedly connected to the corresponding bottom ring, and the rotating ring is located in the middle position on the bottom rod.

[0008] Specifically, the diameter of the mounting ring is smaller than that of the moving ring. The mounting ring is fixedly connected to the outer wall of the base column. The outer wall of the mounting ring is threaded. The moving ring is threadedly connected to the mounting ring via threads on the surface of the mounting ring.

[0009] Specifically, the top diameter of the extrusion ring is smaller than the bottom diameter, and the specific shape of the extrusion ring is conical. There are two pressure wheels, and the outer walls of the pressure wheels are in contact with the outer wall of the extrusion ring near the top position.

[0010] Specifically, the diameter of the moving ring is smaller than that of the pushing ring. The pushing ring is located at a position on the moving ring corresponding to the bottom end of the extrusion ring. There are four pushing rods in total.

[0011] Beneficial effects of the present invention: In the actual application of the surgical guide device, the adjustment mechanism allows for flexible control of the top ring's clamping angle. The entire operation process is extremely simple; simply rotating the movable ring allows for precise angle adjustment. This angle-adjustable top ring design empowers the base column to adapt to open tubes of varying diameters, allowing staff to quickly and flexibly secure open tubes of various specifications based on specific surgical needs, completely breaking the limitations of traditional fixed connection methods. This design not only significantly enhances the versatility of the guidance device, making it widely applicable to various joint surgery scenarios, but also greatly improves the convenience of clinical operation through a minimally simplistic operation process, effectively reducing the difficulty of operation for medical staff and shortening surgical preparation time. It is of great significance for improving surgical efficiency and safety and has great promotion value. The quick-change feature can reduce the exposure time of the instrument. At the same time, the rubber layer on the outer layer of the top ring and the bottom ring not only provides friction, but also forms a certain sealing effect. When clamping the open tube, the top opening of the open tube is widely closed, which can reduce the possibility of external dust, bacteria and other pollutants entering the open tube, thereby improving the cleanliness of the surgical environment from the details and reducing the risk of intraoperative infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and examples.

[0013] Figure 1 The main view provided by the present invention; Figure 2 A side view provided for the present invention; Figure 3 A structural diagram of the specific position of the torsion spring provided by the present invention; Figure 4 A structural diagram of the adjustment mechanism provided by the present invention; Figure 5 This is a cross-sectional view of the adjustment mechanism provided by the present invention.

[0014] In the figure: 1. Base column; 2. Support rod; 3. Bottom rod; 4. Bottom ring; 5. Rotating ring; 6. Torsion spring; 7. Top rod; 8. Top ring; 9. Connecting rod; 10. Pressure wheel; 11. Adjustment mechanism; 111. Mounting ring; 112. Moving ring; 113. Extrusion ring; 114. Pushing ring; 115. Pushing rod; 12. Base; 13. Fixing bolt; 14. Rubber layer; 15. Pad; 16. Open tube. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0016] See also Figures 1 to 5 , the present invention provides the following technical solutions: Embodiment 1: A joint replacement prosthesis implantation guide device, comprising a base column 1 and an open tube 16, wherein the base column 1 is fixedly connected to a plurality of symmetrically arranged support rods 2, one end of each of the adjacent support rods 2 is fixedly connected to a bottom rod 3, each of the bottom rods 3 is fixedly connected to a symmetrically arranged bottom ring 4, each of the bottom rods 3 is rotatably connected to a rotating ring 5, each of the rotating rings 5 ​​side walls is fixedly connected to a torsion spring 6, each of the top ends of the rotating rings 5 ​​is fixedly connected to a top rod 7, each of the top rods 7 is fixedly connected to a symmetrically arranged top ring 8, and one side of the base column 1 is fixedly connected to the base. The seat 12 is threaded with symmetrically arranged fixing bolts 13, and there are two fixing bolts 13 in total. The diameter and size of the fixing bolts 13 are the same. The top ring 8 and the bottom ring 4 are each provided with four. The diameter and size of the top ring 8 and the bottom ring 4 are the same. The outer layers of the top ring 8 and the bottom ring 4 are provided with a rubber layer 14. One end of the bottom rod 3 passes through the corresponding torsion spring 6, and one end of the torsion spring 6 is fixedly connected to the corresponding bottom ring 4. The rotating ring 5 is located in the middle position on the bottom rod 3, and a plurality of pads 15 are fixedly connected to the inside of the open tube 16; When in use, the base 12 can be connected to the external power robot through the fixing bolts 13, and the driver can be pressed into the inside of the open tube 16. The open tube 16 has toughness, and the pad 15 inside the open tube 16 will provide support for the driver. Then the open tube 16 carrying the driver can be placed between the bottom ring 4 and the top ring 8. When the open tube 16 is pressed between each top ring 8, each top ring 8 will be squeezed. At this time, each top ring 8 will rotate in the direction away from each other. At this time, the top ring 8 and the ejector rod 7 will rotate away from each other, and the ejector rod 7 will also drive the rotating ring 5 to rotate, and the rotation of the rotating ring 5 will Tighten the torsion spring 6. When the open tube 16 enters the position between the bottom rings 4, the torsion spring 6 will drive the rotating ring 5 to reset and rotate. The rotation of the rotating ring 5 will drive the top rod 7 and the top rings 8 to reset. At this time, the top ring 8 will be clamped on the outer wall of the open tube 16. The rubber layer 14 provides friction for the open tube 16, so that the position stability of the open tube 16 is enhanced. Then, the base 12 and the base column 1 can be controlled by an external robot, so that the base column 1 drives the open tube 16 to adjust to a suitable angle. Then, the injector can be moved with the support of the open tube 16, so that the injector can inject the joint into the patient's joint position.

[0017] Embodiment 2: The technical solutions of this embodiment are different from those of embodiment 1 in that: the bottom ends of the rotating rings 5 ​​are fixedly connected to the connecting rods 9, the bottom ends of the connecting rods 9 are rotatably connected to the pressure wheels 10, the base column 1 is provided with an adjustment mechanism 11 for adjusting the position of the top ring 8, the adjustment mechanism 11 includes a mounting ring 111, a moving ring 112 is threadedly connected to the mounting ring 111, an extrusion ring 113 is fixedly connected to the outer wall of the moving ring 112, a push ring 114 is fixedly connected to the outer wall of the moving ring 112 at a position corresponding to the bottom end of the extrusion ring 113, and a plurality of push rods 115 arranged in an array are fixedly connected to the outer wall of the push ring 114; The diameter of the mounting ring 111 is smaller than that of the moving ring 112. The mounting ring 111 is fixedly connected to the outer wall of the base column 1. The outer wall of the mounting ring 111 is threaded. The moving ring 112 is threadedly connected to the mounting ring 111 through the thread on the surface of the mounting ring 111. The top diameter of the extrusion ring 113 is smaller than the bottom diameter. The specific shape of the extrusion ring 113 is conical. There are two pressure wheels 10. The outer walls of the pressure wheels 10 abut against the outer wall of the extrusion ring 113 near the top position. The diameter of the moving ring 112 is smaller than that of the pushing ring 114. The pushing ring 114 is located on the moving ring 112 at a position corresponding to the bottom end of the extrusion ring 113. There are four pushing rods 115. When in use, the open tube 16 of corresponding diameter can be put between the top ring 8 and the bottom ring 4 for clamping, and then the pushing ring 114 can be rotated by the pushing rod 115. The rotation of the pushing ring 114 will drive the moving ring 112 to rotate, and the moving ring 112 will move upward along the thread on the surface of the mounting ring 111. At this time, the moving ring 112 will also drive the squeezing ring 113 to move upward together, and the squeezing ring 113 will also rotate with the moving ring 112 during the upward movement. The upward squeezing ring 113 will squeeze the two pressure wheels 10. At this time, the pressure wheel 10 will rotate due to the squeezing of the squeezing ring 113. The rotation of the pressure wheel 10 in the direction away from each other will drive the connecting rod 9 to rotate together, and the rotation of the connecting rod 9 will drive the rotating ring 5 to rotate, and the rotating ring 5 rotates The movement will drive the top push rod 7 to rotate toward the open tube 16. At this time, the two push rods 7 will drive each top ring 8 to rotate toward the open tube 16. The top ring 8 will press the rubber layer 14 tightly against the surface of the open tube 16, and then move the movable ring 112 to a suitable position to complete the installation of the open tube 16. When disassembling, it is only necessary to reset the movable ring 112 to its original position so that the extrusion ring 113 no longer squeezes the pressure wheel 10, and then the open tube 16 can be directly taken out from between the top ring 8 and the bottom ring 4. This gives the base column 1 a powerful ability to adapt to open tubes 16 of different diameters, allowing staff to quickly and flexibly stably fix open tubes 16 of various specifications according to specific surgical needs, completely breaking the limitations of traditional fixed connection methods.

[0018] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A joint replacement prosthesis implantation guide device, comprising a base column (1) and an open tube (16), wherein the base column (1) is fixedly connected to a plurality of symmetrically arranged support rods (2), one end of adjacent support rods (2) is commonly fixedly connected to a bottom rod (3), each of the bottom rods (3) is fixedly connected to a symmetrically arranged bottom ring (4), each of the bottom rods (3) is rotatably connected to a rotating ring (5), each of the rotating rings (5) is fixedly connected to a torsion spring (6) on a side wall, each of the rotating rings (5) is fixedly connected to a top rod (7), and each of the top rods (7) is fixedly connected to a symmetrically arranged top ring (8); Its characteristics are: The bottom ends of the rotating rings (5) are fixedly connected to the connecting rods (9), and the bottom ends of the connecting rods (9) are rotatably connected to the pressure wheels (10). The base column (1) is provided with an adjustment mechanism (11) for adjusting the position of the top ring (8), and the adjustment mechanism (111) comprises a mounting ring (111), a moving ring (112) is threadedly connected to the mounting ring (111), an extrusion ring (113) is fixedly connected to the outer wall of the moving ring (112), a push ring (114) is fixedly connected to the outer wall of the moving ring (112) at a position corresponding to the bottom end of the extrusion ring (113), and a plurality of push rods (115) arranged in an array are fixedly connected to the outer wall of the push ring (114).

2. The joint replacement prosthesis implantation guide device according to claim 1, characterized in that: One side of the base column (1) is fixedly connected to a base (12), and the base (12) is threadedly connected to symmetrically arranged fixing bolts (13), and there are two fixing bolts (13) in total, and the diameters of the fixing bolts (13) are the same as the size.

3. The joint replacement prosthesis implantation guide device according to claim 1, characterized in that: There are four top rings (8) and four bottom rings (4), and the diameters and sizes of the top rings (8) and the bottom rings (4) are the same. The outer layers of the top rings (8) and the bottom rings (4) are provided with a rubber layer (14). One end of the bottom rod (3) passes through the corresponding torsion spring (6), and one end of the torsion spring (6) is fixedly connected to the corresponding bottom ring (4). The rotating rings (5) are located in the middle position of the bottom rod (3), and a plurality of pads (15) are fixedly connected inside the open tube (16).

4. The joint replacement prosthesis implantation guide device according to claim 1, characterized in that: The diameter of the mounting ring (111) is smaller than that of the moving ring (112); the mounting ring (111) is fixedly connected to the outer wall of the base column (1); the outer wall of the mounting ring (111) is threaded; and the moving ring (112) is threadedly connected to the mounting ring (111) via threads on the surface of the mounting ring (111).

5. The joint replacement prosthesis implantation guide device according to claim 1, characterized in that: The top diameter of the extrusion ring (113) is smaller than the bottom diameter. The specific shape of the extrusion ring (113) is a conical setting. There are two pressure wheels (10) in total. The outer walls of the pressure wheels (10) are in contact with the outer wall of the extrusion ring (113) near the top position.

6. The joint replacement prosthesis implantation guiding device according to claim 1, characterized in that: The diameter of the moving ring (112) is smaller than that of the pushing ring (114). The pushing ring (114) is located at a position on the moving ring (112) corresponding to the bottom end of the extrusion ring (113). There are four pushing rods (115) in total.

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