Condyle hitting device for orthopedics department
By designing a condyle striker for femoral condylar prosthesis, using the V-shaped groove to locate the femoral condylar prosthesis and quickly loosen it by tapping, the problem of difficulty in removing the femoral condylar prosthesis in the prior art is solved, and the surgical time and the risk of infection are reduced.
Patent Information
- Application Number
- CN202421000773.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The prior art has difficulties in removing the femoral condyle prosthesis, with many tools and laborious operation, resulting in a long operation time and increasing the risk of infection in patients.
A orthopedic condyle striker is designed, including a strike head, a strike handle and a strike rod. One end of the strike head is equipped with a V-shaped groove to adapt to the positioning and adapting to the femoral condyle prosthesis. By tapping the femoral condyle prosthesis, it can be quickly loosened and removed.
By using a condyle striker, the femoral condyle prosthesis can be quickly loosened and removed, effectively reducing the risk of infection in patients and reducing the surgical time.
Smart Images
Figure CN222604626U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a condyle impactor for orthopedics. Background Art
[0002] More and more patients with knee osteoarthritis require treatment due to pain and limited mobility to improve their quality of life. Artificial knee replacement is a widely used treatment for severe knee joint diseases, and revision surgery of total knee replacement has also become a crucial surgery. The first step of revision surgery is the removal of the femoral condyle prosthesis. The removal time of the femoral condyle prosthesis directly affects the time of the operation, so the removal of the femoral condyle prosthesis has become the key to knee revision surgery.
[0003] Compared with the removal of the tibial plateau, the femoral condyle prosthesis contacts a larger area of bone, so it is more difficult to remove. Although there are a wide variety of revision removal tools for doctors to choose from, the removal of the femoral condyle prosthesis is still difficult. At present, the removal of the femoral condyle prosthesis requires first completely removing the soft tissue and bony obstruction around the femoral condyle prosthesis, and then loosening the femoral condyle prosthesis with osteotomes, bone knives, wire saws, etc. After the femoral condyle prosthesis is loosened, various shapes of osteotomes are used to remove the femoral condyle prosthesis, which takes a long time, requires more tools, and is more laborious. Utility Model Content
[0004] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model provides an orthopedic condyle impactor.
[0005] The utility model provides an orthopedic condyle impactor, comprising an impact head, an impact handle and an impact rod, one end of the impact head is provided with a V-shaped groove, the V-shaped groove is used for positioning and matching with a femoral condyle prosthesis, the other end of the impact head is connected to one end of the impact rod; the other end of the impact rod is connected to the impact handle.
[0006] According to an orthopedic condyle impactor provided by the utility model, the V-shaped groove also includes a first groove surface and a second groove surface, the first groove surface and the second groove surface are connected to form a "V" shape, the maximum width of the "V"-shaped opening is greater than the radial width of the impact head, and the lengths of the two sides of the "V" shape are different.
[0007] According to the orthopedic condyle impactor provided by the utility model, the opening angle of the V-shaped groove is 60° to 110°, and the groove depth of the V-shaped groove is 5mm to 15mm.
[0008] According to an orthopedic condyle impactor provided by the utility model, the V-shaped groove also includes a first vertical surface and a second vertical surface, the first vertical surface intersects with the first groove surface, the second vertical surface intersects with the second groove surface, and the distance from the intersection of the first vertical surface and the first groove surface to the impact head is the same as the distance from the intersection of the second vertical surface and the second groove surface to the impact head.
[0009] According to an orthopedic condyle impactor provided by the utility model, the impact rod also includes a first impact rod connected to the impact handle, a third impact rod connected to the impact head, and a second impact rod for realizing a transition connection between the first impact rod and the third impact rod. The radial width of the first impact rod is greater than the radial width of the third impact rod. An arc structure is provided at one end of the third impact rod close to the second impact rod. The arc structure makes the axis of the first impact rod and the axis of the third impact rod not in a straight line, so as to increase the impact strength of the impact rod and increase the operating space of the impact rod during surgery.
[0010] According to the orthopedic condyle impactor provided by the utility model, the material of the V-shaped groove, the material of the impact head and the material of the impact rod are all made of stainless steel.
[0011] According to the orthopedic condyle impactor provided by the utility model, the impact handle is a bakelite handle or a silicone handle.
[0012] According to the orthopedic condyle impactor provided by the utility model, the radial width of the impact handle is greater than the radial width of the impact rod.
[0013] The above one or more technical solutions in the embodiments of the utility model have at least one of the following technical effects:
[0014] The utility model is provided with a V-shaped groove at one end of the striking head, which is convenient for positioning the femoral condyle prosthesis. By striking the femoral condyle prosthesis, the femoral condyle prosthesis can be quickly loosened and taken out. The utility model can effectively reduce the infection risk of patients and shorten the operation time.
[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 The utility model is a schematic structural diagram of an orthopedic condyle impactor.
[0018] Figure 2 The utility model is a schematic diagram of a V-groove structure of an orthopedic condyle impactor.
[0019] Reference numerals:
[0020] 1. striking handle; 2. first striking rod; 3. second striking rod; 4. third striking rod; 5. striking head; 6. V-shaped groove; 7. femoral condyle prosthesis; 61. first groove surface; 62. second groove surface; 63. first vertical surface; 64. second vertical surface. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. The following embodiments are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.
[0022] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0023] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0024] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0025] Combine the following Figure 1 to Figure 2 An orthopedic condyle impactor is described in the utility model. The orthopedic condyle impactor provided by the utility model includes an impact head 5, an impact handle 1 and an impact rod. One end of the impact head 5 is provided with a V-shaped groove 6, and the V-shaped groove 6 is used for positioning and adapting with the femoral condyle prosthesis 7. The other end of the impact head 5 is connected to one end of the impact rod; the other end of the impact rod is connected to the impact handle 1.
[0026] In this embodiment, by providing a V-shaped groove 6 at one end of the striking head 5, the femoral condyle prosthesis 7 can be effectively positioned with the V-shaped groove at different angles.
[0027] According to some embodiments of the present invention, the V-shaped groove 6 includes a first groove surface 61 and a second groove surface 62, the first groove surface 61 and the second groove surface 62 are connected to form a "V" shape, the maximum width of the "V"-shaped opening is greater than the radial width of the striking head, and the lengths of the two sides of the "V" shape are different. The opening angle of the V-shaped groove 6 is 60° to 110°, and the depth of the V-shaped groove 6 is 5mm to 15mm.
[0028] In this embodiment, the V-shaped groove 6 includes a first groove surface 61 and a second groove surface 62. The first groove surface 61 and the second groove surface 62 are connected to form a "V" shape. The maximum width of the "V"-shaped opening is greater than the radial width of the striking head 5, and the lengths of the two sides of the "V" shape are different.
[0029] Furthermore, the opening angle of the V-shaped groove 6 is 60° to 110°, and the depth of the V-shaped groove 6 is 5mm to 15mm; preferably, the opening angle of the V-shaped groove 6 is 80°, and the depth of the V-shaped groove 6 is 10mm, so that the V-shaped groove 6 can be positioned with different femoral condyle prostheses 7, thereby improving the use range of the orthopedic condyle impactor of the utility model.
[0030] According to some embodiments of the utility model, the V-shaped groove 6 also includes a first vertical surface 63 and a second vertical surface 64, the first vertical surface 63 intersects with the first groove surface 61, the second vertical surface 64 intersects with the second groove surface 62, and the distance from the intersection of the first vertical surface 63 and the first groove surface 61 to the striking head 5 is the same as the distance from the intersection of the second vertical surface 64 and the second groove surface 62 to the striking head 5.
[0031] In this embodiment, the V-shaped groove 6 also includes a first vertical surface 63 and a second vertical surface 64. The first vertical surface 63 intersects with the first groove surface 61, and the second vertical surface 64 intersects with the second groove surface 62. The distance from the intersection of the first vertical surface 63 and the first groove surface 61 to the striking head 5 is the same as the distance from the intersection of the second vertical surface 64 and the second groove surface 62 to the striking head 5. At the same time, it is better to position the femoral condyle prosthesis 7 from different angles, thereby improving the stability and effectiveness of positioning.
[0032] According to some embodiments of the utility model, the striking rod includes a first striking rod 2 connected to the striking handle 1, a third striking rod 4 connected to the striking head 5, and a second striking rod 3 for realizing a transition connection between the first striking rod 2 and the third striking rod 4. The radial width of the first striking rod 2 is greater than the radial width of the third striking rod 4. An arc structure is provided at one end of the third striking rod 4 close to the second striking rod 3. The arc structure makes the axis of the first striking rod 2 and the axis of the third striking rod 4 not in a straight line, so as to increase the striking strength of the striking rod and at the same time increase the operating space of the striking rod during surgery.
[0033] In this embodiment, when the striking handle 1 is struck, the radial width of the first striking rod 2 is set to be greater than the radial width of the third striking rod 4, and an arc structure is provided at one end of the third striking rod 4 close to the second striking rod 3. The arc structure makes the axis of the first striking rod 2 and the axis of the third striking rod 4 not in a straight line, so that the overall strength of the striking rod is increased and can withstand greater impact force. At the same time, the striking rod has a larger operating space during surgery, which is beneficial to the separation of the femoral condyle prosthesis 7 from the bone cement, thereby achieving the purpose of separating the femoral condyle prosthesis 7 from the patient.
[0034] According to some embodiments of the present invention, the striking head 5 and the striking rod are both made of stainless steel.
[0035] In this embodiment, the striking head 5, the striking rod and the V-shaped groove 6 are all made of stainless steel, which further increases the overall strength of the orthopedic condyle striker of the utility model and can further reduce surgical infections caused by instrument problems.
[0036] According to some embodiments of the present utility model, the striking handle is a bakelite handle or a silicone handle.
[0037] In this embodiment, the striking handle is configured as a bakelite handle or a silicone handle, so that it is convenient to hold during striking, vibration is reduced, and the condyle striker is prevented from falling off from the hand.
[0038] According to some embodiments of the present invention, a radial width of the striking handle is greater than a radial width of the striking rod.
[0039] In this embodiment, by setting the radial width of the striking handle to be larger than the radial width of the striking rod, striking during surgery can be effectively facilitated.
[0040] Furthermore, in order to ensure the visual field during surgery, the striking head can be designed as a short rod.
[0041] In this embodiment, during the removal of the femoral condyle prosthesis 7, the bone cement is firstly removed with a saw blade, and the femoral condyle prosthesis 7 is supported by the V-shaped groove 6 for positioning.
[0042] The femoral condyle prosthesis 7 is loosened and separated from the bone cement by striking the striking handle 1, and the femoral condyle prosthesis 7 is continuously loosened and separated from the bone cement by contacting the V-groove 6 with different positions of the femoral condyle prosthesis 7 until the femoral condyle prosthesis 7 is completely separated from the bone cement, thereby achieving the purpose of separating the femoral condyle prosthesis 7 from the patient.
[0043] The beneficial effects of the utility model are as follows: a V-shaped groove is provided at one end of the striking head, which is convenient for positioning the femoral condyle prosthesis. By striking the femoral condyle prosthesis, the femoral condyle prosthesis can be quickly loosened and removed. The utility model can effectively reduce the risk of infection for patients and shorten the operation time.
[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A condyle impactor for orthopedics, characterized in that: It comprises a striking head, a striking handle and a striking rod, wherein one end of the striking head is provided with a V-shaped groove, the V-shaped groove is used for positioning and matching with the femoral condyle prosthesis, the other end of the striking head is connected to one end of the striking rod; the other end of the striking rod is connected to the striking handle; The V-shaped groove includes a first groove surface and a second groove surface, the first groove surface and the second groove surface are connected to form a "V" shape, the maximum width of the "V"-shaped opening is greater than the radial width of the striking head, and the lengths of the two sides of the "V" shape are different.
2. The orthopedic condyle impactor according to claim 1, characterized in that: The opening angle of the V-shaped groove is 60° to 110°, and the groove depth of the V-shaped groove is 5mm to 15mm.
3. The orthopedic condyle impactor according to claim 1, characterized in that: The V-shaped groove also includes a first vertical surface and a second vertical surface, the first vertical surface intersects with the first groove surface, the second vertical surface intersects with the second groove surface, and the distance from the intersection of the first vertical surface and the first groove surface to the striking head is the same as the distance from the intersection of the second vertical surface and the second groove surface to the striking head.
4. The orthopedic condyle impactor according to claim 1, characterized in that: The striking rod includes a first striking rod connected to the striking handle, a third striking rod connected to the striking head, and a second striking rod for realizing a transitional connection between the first striking rod and the third striking rod. The radial width of the first striking rod is greater than the radial width of the third striking rod. An arc structure is provided at one end of the third striking rod close to the second striking rod. The arc structure makes the axis of the first striking rod and the axis of the third striking rod not in a straight line, so as to increase the striking strength of the striking rod and increase the operating space of the striking rod during surgery.
5. The orthopedic condyle impactor according to claim 1, characterized in that: The material of the V-shaped groove, the material of the striking head and the material of the striking rod are all stainless steel.
6. The orthopedic condyle impactor according to claim 1, characterized in that: The striking handle is a bakelite handle or a silicone handle.
7. The orthopedic condyle impactor according to claim 1, characterized in that: The radial width of the striking handle is greater than the radial width of the striking rod.