Far-end shaping system and matching module

Abstract

The invention provides a far-end shaping system and a matching module, and belongs to the technical field of artificial joints. An osteotomy module; the inserting rod is fixedly connected to one side end of the osteotomy module; the force line positioning module is arranged on one side of the osteotomy module; the problems that according to an existing thighbone far-end shaping system, due to the fact that matching problems occur in the operation of all assemblies, the osteotomy amount is inaccurate, and the osteotomy position deviates in thighbone osteotomy are solved. The problems that when an existing femoral far-end shaping system for the unicompartmental condyle surgery is used in cooperation with other instruments, large errors exist, the osteotomy amount is not accurate and the osteotomy position deviates during femoral osteotomy, and consequently secondary osteotomy needs to be conducted on the femur are solved, the risk that wounds of patients are infected or subjected to secondary injuries is reduced, and the patient experience is improved. Meanwhile, the problem that the osteotomy amount of a surgical tool cannot be flexibly adjusted according to the bone defect amount of a patient is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of artificial joints, and particularly relates to a distal shaping system and a matching module. Background Art

[0002] The distal shaping system combines advanced materials science, robotics, and computer-aided design (CAD), enabling doctors to precisely control in-vivo instruments by manipulating these systems away from the surgical site. The system typically includes one or more remotely controllable modules that can adjust their shape and hardness as needed to adapt to different anatomical structures or surgical requirements. For example, in cardiovascular interventional therapy, a distal shaping catheter can be precisely guided to the target location inside the heart without open-chest surgery. With the development of modern medical technology, the demand for minimally invasive and non-invasive treatment methods is increasing. The distal shaping system and the matching module are innovative medical devices developed in this context, aiming to provide safer and more effective treatment options for patients.

[0003] Most of the femoral distal shaping systems currently used in the market perform osteotomy shaping at a single angle and with a single bone mass. Facing the different femoral wear amounts and knee joint alignment angles of patients in clinical surgeries, the distal shaping system cannot be precisely adjusted, and the knee joint alignment and angle before the patient's illness cannot be fully restored, which is contrary to the replacement concept of "repairing the old as the old" for unicompartmental knee replacement. Due to the differences in the knee joint alignment and angle after surgery compared to before the illness, the patient's postoperative recovery effect is poor, the knee joint movement is unnatural, and there is also a risk of increasing the wear of the contralateral compartment of the knee joint. Summary of the Invention

[0004] The purpose of the present invention is to provide a distal shaping system and a matching module, aiming to solve the problem that most of the femoral distal shaping systems in the prior art perform osteotomy shaping at a single angle and with a single bone mass. Facing the different femoral wear amounts and knee joint alignment angles of patients in clinical surgeries, the distal shaping system cannot be precisely adjusted, and the knee joint alignment and angle before the patient's illness cannot be fully restored, which is contrary to the replacement concept of "repairing the old as the old" for unicompartmental knee replacement. Due to the differences in the knee joint alignment and angle after surgery compared to before the illness, the patient's postoperative recovery effect is poor, the knee joint movement is unnatural, and there is also a risk of increasing the wear of the contralateral compartment of the knee joint.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A distal shaping system and a matching module, comprising:

[0007] An osteotomy module;

[0008] The insertion rod is fixedly connected to one side end of the osteotomy module;

[0009] The force line positioning module is arranged on one side of the osteotomy module;

[0010] The perforation is opened at one side end of the force line positioning module;

[0011] The pointing module and the installation groove are both opened at one side end of the osteotomy module;

[0012] The guiding module is arranged in the installation groove;

[0013] The support module is arranged on the other side of the osteotomy module;

[0014] The pointing support rod is fixedly connected to one side end of the support module. The pointing support rod is located within the pointing module, and the osteotomy module is sleeved on the surface of the pointing support rod.

[0015] As a preferred solution of the present invention, a hollow groove is opened at one side end of the support module, and a first adjusting gasket and a second adjusting gasket are arranged in the hollow groove.

[0016] As a preferred solution of the present invention, the thickness of the first adjusting gasket is 2 mm, and the thickness of the second adjusting gasket is 4 mm.

[0017] As a preferred solution of the present invention, the osteotomy module can move on the surface of the pointing support rod, and scales are arranged on the surface of the osteotomy module.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. The osteotomy module and the support module are combined components, which solve the problems that in the existing femoral distal shaping system, due to problems in the cooperation of each component during the operation, the risk of inaccurate osteotomy amount and offset of the osteotomy position in femoral osteotomy occurs. It solves the problem that in the existing unicondylar surgery femoral distal shaping system, when used in combination with other instruments, there are large errors, and there is a risk of inaccurate osteotomy amount and offset of the osteotomy position in femoral osteotomy, resulting in the need for secondary osteotomy of the femur, reducing the risk of wound infection or secondary injury to the patient. At the same time, it solves the problem that the osteotomy amount of the surgical tool cannot be flexibly adjusted according to the bone defect amount of the patient.

[0020] 2. The varus and valgus angles of the femur can be adjusted through the pointing module, and the functions of adjusting the osteotomy amount and osteotomy angle according to the actual situation of the patient can be realized, improving the flexible operability of the surgical tool. By increasing the specifications of the guiding module, the osteotomy amount can be flexibly adjusted, solving the problems that the wear amount of the patient's femur and the knee joint force line angle are different in clinical operations.

[0021] 3. Add a slot in the support module. Different specifications of adjusting shims can be added to adjust the femoral osteotomy amount and fill the joint space, meeting the usage requirements of patients with excessive bone defect. It can cooperate with the mechanical axis positioning module to adjust and evaluate the mechanical axis of the patient's knee joint, avoiding poor postoperative recovery, unnatural knee joint movement, and increased risk of wear on the contralateral compartment of the knee joint caused by changes in the mechanical axis after surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings are used to provide a further understanding of the present invention and form a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0023] Figure 1 is a front view structural schematic diagram of the present invention;

[0024] Figure 2 is the first exploded view of the present invention;

[0025] Figure 3 is the second exploded view of the present invention;

[0026] Figure 4 is the third exploded view of the present invention.

[0027] In the figures: 1. Mechanical axis positioning module; 2. Perforation; 3. Osteotomy module; 4. Support module; 5. First adjusting shim; 6. Second adjusting shim; 7. Guide module; 8. Pointing module; 9. Insert rod; 10. Installation groove; 11. Pointing support rod; 12. Hollow groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1

[0030] Please refer to Figures 1-4 , the present invention provides the following technical solutions:

[0031] A distal shaping system and a cooperating module, comprising:

[0032] An osteotomy module 3;

[0033] An insert rod 9, the insert rod 9 is fixedly connected to one side end of the osteotomy module 3;

[0034] A mechanical axis positioning module 1, the mechanical axis positioning module 1 is arranged on one side of the osteotomy module 3;

[0035] Perforation 2 is provided on one side end of the force line positioning module 1;

[0036] The pointing module 8 and the installation groove 10 are both provided on one side end of the osteotomy module 3;

[0037] The guiding module 7 is arranged in the installation groove 10;

[0038] The supporting module 4 is arranged on the other side of the osteotomy module 3;

[0039] The pointing support rod 11 is fixedly connected to one side end of the supporting module 4. The pointing support rod 11 is located inside the pointing module 8, and the osteotomy module 3 is sleeved on the surface of the pointing support rod 11.

[0040] In a specific embodiment of the present invention, the osteotomy module 3 serves as the core component of the entire system and is used to perform osteotomy operations. The insertion rod 9 is used for connecting the force line positioning module 1 to provide stable support. The force line positioning module 1 is used to determine the position of the force line to ensure the accuracy of the surgery. The perforation 2 is used to connect the force line positioning module 1 and the osteotomy module 3 for fixation. The pointing module 8 includes a notch and a ranging device and is used to indicate the surgical direction. The installation groove 10 is used to install the guiding module 7, and the guiding module 7 is used to guide the accurate insertion of surgical instruments. The supporting module 4 provides additional supporting force. The pointing support rod 11 is located inside the pointing module 8 and can realize the valgus function of the device. The osteotomy module 3 is sleeved on the surface of the pointing support rod 11 and is used to further stabilize and guide the surgical operation. The pointing support rod 11 is installed into the notch in the pointing module 8 to ensure the connection of the device. The pointing module 8 adjusts the varus-valgus angle of the femur and can adjust the osteotomy amount and osteotomy angle according to the actual situation of the patient, improving the flexible operability of the surgical tool. There is no need for on-site assembly during the operation, which can improve the accuracy of the instrument, ensure the accuracy of osteotomy, and at the same time, according to the bone wear condition of the patient, a guiding module 7, a first adjusting gasket 5 and a second adjusting gasket 6 of appropriate specifications can be selected to adjust the osteotomy amount and osteotomy angle. The distal shaping system and the matching module are used for osteotomy shaping of the patient's femur during unicompartmental knee replacement surgery to meet the installation of the unicompartmental knee prosthesis, so as to facilitate the surgeon to perform unicompartmental knee replacement surgery on the patient.

[0041] Specifically, please refer to Figures 1-4 , a hollow groove 12 is provided on one side end of the supporting module 4, and a first adjusting gasket 5 and a second adjusting gasket 6 are arranged in the hollow groove 12.

[0042] In this embodiment: The supporting module 4 is finely adjusted through the first adjusting gasket 5 and the second adjusting gasket 6 in the hollow groove 12 to meet different surgical requirements. Finally, the pointing support rod 11 provides additional stable support to ensure the smooth progress of the surgery.

[0043] For details, please refer to Figures 1-4 , the thickness of the first adjusting gasket 5 is 2 mm, and the thickness of the second adjusting gasket 6 is 4 mm.

[0044] In this embodiment: the thickness of the first adjusting gasket 5 is 2 mm, and the thickness of the second adjusting gasket 6 is 4 mm, which are used to finely adjust the height and angle of the support module 4 to adapt to different surgical requirements. By adding first adjusting gaskets 5 and second adjusting gaskets 6 of different specifications, the adjustment of the femoral osteotomy amount and the filling of the joint space can be realized, which can meet the use requirements of patients with excessive bone defect amount.

[0045] For details, please refer to Figures 1-4 , the osteotomy module 3 can move on the surface pointing to the support rod 11, and a scale is provided on the surface of the osteotomy module 3.

[0046] In this embodiment: the osteotomy module 3 is sleeved on its surface to provide stable pointing and support, and then fine adjustment can be carried out through the cooperation of the pointing module 8 and the pointing support rod 11.

[0047] The working principle and usage process of the present invention: During the operation, first, the force line direction of the operation is determined by the force line positioning module 1, and then the necessary fixing elements or wires are passed through the perforation 2. Then, the osteotomy module 3 is placed at a predetermined position, and the insertion rod 9 is inserted into the bone to provide stable support. Through the cooperation of the pointing module 8 and the guiding module 7, the direction of the surgical tool or implant is accurately guided. Finally, the support module 4 and the pointing support rod 11 provide additional stable support to ensure the smooth progress of the operation. The pointing module 8 adjusts the varus-valgus angle of the femur, and has the function of adjusting the osteotomy amount and osteotomy angle according to the actual situation of the patient, improving the flexible operation of the surgical tool. There is no need to assemble during the operation, which can improve the accuracy of the instrument, ensure the accuracy of osteotomy, and at the same time, according to the bone wear condition of the patient, the guiding module 7, the first adjusting gasket 5 and the second adjusting gasket 6 of appropriate specifications can be selected to adjust the osteotomy amount and osteotomy angle.

[0048] Finally, it should be noted that: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A distal shaping system and a matching module, characterized in that: Comprising: An osteotomy module (3); A plug rod (9), the plug rod (9) being fixedly connected to one side end of the osteotomy module (3); A force line positioning module (1), the force line positioning module (1) being arranged on one side of the osteotomy module (3); A perforation (2), the perforation (2) being opened at one side end of the force line positioning module (1); A pointing module (8) and a mounting groove (10), both the pointing module (8) and the mounting groove (10) being opened at one side end of the osteotomy module (3); A guiding module (7), the guiding module (7) being arranged in the mounting groove (10); A supporting module (4), the supporting module (4) being arranged on the other side of the osteotomy module (3); A pointing support rod (11), the pointing support rod (11) being fixedly connected to one side end of the supporting module (4), the pointing support rod (11) being located in the pointing module (8), and the osteotomy module (3) being sleeved on the surface of the pointing support rod (11).

2. The distal shaping system and the matching module according to claim 1, wherein: A hollow groove (12) is opened at one side end of the supporting module (4), and a first adjusting gasket (5) and a second adjusting gasket (6) are arranged in the hollow groove (12).

3. The distal shaping system and the matching module according to claim 2, characterized in that: The thickness of the first adjusting gasket (5) is 2 mm, and the thickness of the second adjusting gasket (6) is 4 mm.

4. A distal shaping system and a matching module according to claim 3, characterized in that: The osteotomy module (3) can move on the surface of the pointing support rod (11), and scales are provided on the surface of the osteotomy module (3).

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