Orthopedic adapter and medical device

Abstract

This invention relates to the field of medical device technology, providing an orthopedic adapter and medical device. The orthopedic adapter includes a frame, an output bearing assembly, an input knob assembly, and an intermediate transmission assembly. The output bearing assembly includes a first end and a second end, the second end being used to connect to an output flange. The input knob assembly includes an abutment end and a handle end. The intermediate transmission assembly includes a first sliding part and a second sliding part slidably connected to the frame, and an elastic part. The first sliding part is movably connected to the second sliding part, and the second sliding part can slide relative to the first sliding part along the sliding direction. The elastic part is in an elastically compressed state. The abutment end is used to abut against the second sliding part, and the first sliding part is used to limit the first end. The orthopedic adapter of this application can effectively filter vibration potential energy in both the initial state and the swinging state, thereby improving the stability of the product during use.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an orthopedic adapter and medical device. Background Technology

[0002] In orthopedic surgery, adapters are needed to connect surgical instruments and power-driven devices. For example, in robot-assisted knee surgery, the robotic arm is equipped with an oscillating saw for osteotomy, as well as an electric drill for drilling and other tools for operation. When the oscillating saw is working, if the patient's incision is large, it can slide through the incision to perform the osteotomy; if the incision is small, the oscillating saw needs to be able to rotate left and right to cut through the smaller opening. Simultaneously, the oscillating saw generates vibrations primarily concentrated in the rotational direction, which can adversely affect the robotic arm's physical structure and control program. Summary of the Invention

[0003] The purpose of this invention is to provide an orthopedic adapter and medical device, which aims to solve the problem of poor shock absorption in existing orthopedic adapters.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: In a first aspect, this application provides an orthopedic adapter, comprising: A frame having a receiving cavity; An output bearing assembly is rotatably connected to the frame. The output bearing assembly includes a first end disposed within the accommodating cavity and a second end coaxially rotatable with the first end. The second end is located outside the accommodating cavity and is used to connect to an output flange. An input knob assembly is rotatably connected to the frame. The input knob assembly includes an abutting end disposed in the accommodating cavity and a handle end coaxially rotatable with the abutting end. The handle end is located outside the accommodating cavity. An intermediate transmission assembly is disposed within the accommodating cavity. The intermediate transmission assembly includes a first sliding portion and a second sliding portion that are slidably connected to the frame, and elastic portions whose opposite ends respectively abut against the first sliding portion and the second sliding portion. The first sliding portion is movably connected to the second sliding portion, and the second sliding portion is capable of sliding relative to the first sliding portion along the sliding direction. The elastic portion is in an elastically compressed state. The abutting end is used to abut against the second sliding portion, and the first sliding portion is used to limit the first end.

[0005] The beneficial effects of this invention: The orthopedic adapter of this invention is used for connecting orthopedic instruments, such as oscillating saws, bone files, etc., and the orthopedic adapter can be installed on the transmission mechanism of medical equipment. Its working process is as follows: The input knob assembly is used to input torque to drive the output bearing assembly to rotate around the axis, thereby realizing the rotation of the orthopedic instrument on the output flange around the axis to obtain a corresponding rotation angle. In the initial state, no force is applied to the handle end of the input knob assembly, and its abutting end abuts against the second sliding part of the intermediate transmission assembly. At the same time, the first end of the output bearing assembly is limited to the first sliding part. At this time, the abutting end and the first end clamp the first and second sliding parts. Since the elastic part is in a compressed state, and since the first and second sliding parts are movably connected and can slide relative to each other (i.e., a flexible connection), the vibration potential energy generated by the orthopedic instrument connected to the output flange is only transmitted to the output bearing assembly and the first sliding part, and most of it is absorbed by the elastic part, ultimately causing the second sliding part and the input knob assembly to produce relatively slight vibration, or even no vibration; while... In the swing state, a force is applied to the handle end of the input knob assembly, causing it to rotate around an axis relative to the frame. At this time, its abutting end loses its resistance to the second sliding part, allowing the first and second sliding parts to slide relative to the frame. The first sliding part releases its restriction on the first end, allowing the output bearing assembly to rotate around an axis relative to the frame. Similarly, since the first and second sliding parts are movably connected and can slide relative to each other, the vibration potential energy generated by the rotation of the orthopedic device connected to the output flange is only transmitted to the output bearing assembly and the first sliding part, with most of it absorbed by the elastic part. Ultimately, this results in relatively slight vibration, or even no vibration, in the second sliding part and the input knob assembly. The orthopedic adapter of this application can effectively filter vibration potential energy in both the initial and swing states, thereby improving the stability of the product during use.

[0006] In some embodiments, the first sliding portion includes a first sliding body slidably connected to the frame and a first connecting portion disposed on the first sliding body; the second sliding portion includes a second sliding body slidably connected to the frame and a second connecting portion disposed on the second sliding body; and the opposite ends of the elastic portion abut against the first sliding body and the second sliding body, respectively. The first connecting part is movably connected to the second connecting part, the first sliding body has a limiting end face for limiting the first end, and the second sliding body has an abutting end face that abuts against the abutting end.

[0007] By adopting the above technical solution, the first sliding body and the second sliding body are slidably connected relative to the frame, and the first connecting part and the second connecting part can slide relative to each other, thereby realizing a flexible connection between the second sliding part and the second sliding part, so as to improve the vibration filtering effect.

[0008] In some embodiments, the first connecting portion includes a first hook disposed on the first sliding body; the second connecting portion includes a second hook disposed on the second sliding body, the first hook engages with the second hook, and there is a first connecting gap between the first hook and the second sliding body, and a second connecting gap between the second hook and the first sliding body.

[0009] By adopting the above technical solution, the first hook and the second hook are engaged and connected, and there is a connection gap between the two and the corresponding sliding body to satisfy the flexible connection between the second sliding part and the second sliding part.

[0010] In some embodiments, the first connecting portion includes a first abutting portion disposed on the first sliding body, and the second connecting portion includes a second abutting portion disposed on the second sliding body. The first abutting portion and the second abutting portion are disposed opposite to each other and spaced apart, and the first abutting portion and the second abutting portion are connected by a chain structure.

[0011] By adopting the above technical solution, a chain structure is used to realize the movable connection between the two abutting parts, and to meet the gap required for the flexible connection between the second sliding part and the second sliding part.

[0012] In some embodiments, the elastic part includes a guide post and a spring sleeved on the guide post, one end of the guide post being fixedly connected to one of the first sliding body or the second sliding body, and the other end being inserted into and connected to the other of the first sliding body or the second sliding body.

[0013] By adopting the above technical solution, the guide column is used to improve the stability of force transmission during the extension and contraction of the spring.

[0014] In some embodiments, the output bearing assembly includes a bearing frame, a first bearing portion, and two second bearing portions. The bearing frame includes a circular main body portion and a connecting arm portion disposed on the circular main body portion. The circular main body portion is rotatably connected to the frame via the first bearing portion. The rotation center of each second bearing portion is symmetrically disposed on the connecting arm portion about the geometric center of the circular main body portion. Each second bearing portion is used to abut against the limiting end face. The connecting arm portion is adapted to the inner wall of the accommodating cavity. The second bearing portion has a first end portion, and the circular main body portion has a second end portion.

[0015] By adopting the above technical solution, the first bearing part is used to realize the relative rotation requirement between the bearing bracket and the frame, and the two second bearing parts and the limiting end face are used to realize the limiting effect on the output bearing assembly, so as to maintain the stability in the initial state.

[0016] In some embodiments, the input knob assembly includes a toggle body rotatably connected to the frame, an abutment bearing portion disposed on the toggle body, and a handle portion connected to the toggle body. The abutment bearing portion has an abutment end, the handle portion has a handle end, and the abutment end face is adapted to the abutment bearing portion.

[0017] By adopting the above technical solution, by applying force to the handle, the actuating body rotates around the axis, thereby causing the bearing part to disengage from the bearing end face, and finally realizing the relative sliding of the intermediate transmission component with respect to the frame, so as to release the limit of the output bearing component.

[0018] In some embodiments, the second sliding body further has a sliding end face connected to the abutting end face, the sliding end face being used for the abutting bearing portion to roll.

[0019] By adopting the above technical solution, the abutting bearing part can slide relative to the sliding end face, so that the actuating body can rotate around the axis more smoothly relative to the frame.

[0020] In some embodiments, the orthopedic adapter includes a micro switch disposed within the receiving cavity and located directly below the actuating body. The actuating body has a release portion disposed opposite to the abutment bearing portion and a pressing portion connected to the release portion. The release portion and the pressing portion interact sequentially with the trigger end of the micro switch when the actuating body rotates about an axis.

[0021] By adopting the above technical solution, a microswitch is used to provide feedback on the current usage status of the orthopedic adapter, making the overall usage process clearer and more accurate.

[0022] Secondly, this application also provides a medical device, including the orthopedic adapter as described above.

[0023] The beneficial effects of the present invention are as follows: The medical device of the present invention, based on the above-mentioned orthopedic adapter, has better shock resistance and higher stability in use. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a left view of the orthopedic adapter provided in an embodiment of the present invention; Figure 2 A cross-section of the orthopedic adapter provided in an embodiment of the present invention. Figure 1 ; Figure 3 An exploded view of the orthopedic adapter provided in an embodiment of the present invention; Figure 4 The front view of the orthopedic adapter provided in the embodiment of the present invention Figure 1 ; Figure 5 The front view of the orthopedic adapter provided in the embodiment of the present invention Figure 2 ; Figure 6 This is a schematic diagram of the structure of the first sliding part of the orthopedic adapter provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the second sliding part of the orthopedic adapter provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the output bearing assembly of the orthopedic adapter provided in an embodiment of the present invention; Figure 9 A schematic diagram of the orthopedic adapter device provided in an embodiment of the present invention, showing the transition from an initial state to a swinging state; Figure 10 This is a schematic diagram of the vibration filtering process of the orthopedic adapter provided in the embodiment of the present invention in its initial state; Figure 11 A cross-section of an orthopedic adapter provided in an embodiment of the present invention. Figure 2 .

[0026] The following are the labeling elements in the figure: 100. Orthopedic adapters; 10. Frame; 10a. Receiving cavity; 20. Output bearing assembly; 20a. First end; 20b. Second end; 21. Bearing frame; 22. First bearing section; 23. Second bearing section; 211. Circular main body section; 212. Connecting arm section; 30. Input knob assembly; 30a. Abutment end; 30b. Handle end; 31. Toggle body; 32. Abutment bearing part; 33. Handle part; 31a. Release part; 31b. Pressing part; 40. Intermediate transmission assembly; 41. First sliding part; 42. Second sliding part; 43. Elastic part; 411. First sliding body; 412. First connecting part; 421. Second sliding body; 422. Second connecting part; 41a. Limiting end face; 42a. Abutting end face; 42b. Sliding end face; 4121. First hook; 4221. Second hook; 4121a. First connecting gap; 4221a. Second connecting gap; 4122. First abutting part; 4222. Second abutting part; 44. Chain structure; 431. Guide post; 432. Spring; 50. Micro switch; 200. Output flange. Detailed Implementation

[0027] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] In the field of orthopedic surgery, adapters are used to connect surgical instruments and power-driven devices. For example, in robot-assisted knee surgery, the robotic arm is equipped with an oscillating saw for osteotomy, as well as a drill for drilling and other tools for operation. When the oscillating saw is working, if the patient's incision is large, it can slide through the incision to perform the osteotomy; if the incision is small, the oscillating saw needs to be able to rotate left and right to cut through the smaller opening. The oscillating saw generates vibrations primarily concentrated in the rotational direction, which are transmitted to the robotic arm through the adapter, adversely affecting the robotic arm's physical structure and control program.

[0032] In view of this, this application provides an orthopedic adapter, wherein the intermediate transmission component includes a first sliding part and a second sliding part slidably connected to the frame, and an elastic part whose opposite ends respectively abut against the first sliding part and the second sliding part. The first sliding part is movably connected to the second sliding part, and the second sliding part can slide relative to the first sliding part along the sliding direction, while the elastic part is in an elastically compressed state. Thus, the first sliding part and the second sliding part are flexibly connected, and the vibration potential energy generated by the orthopedic device connected to the output flange is only transmitted to the output bearing assembly and the first sliding part, and most of it is absorbed by the elastic part. Ultimately, this results in relatively slight vibration, or even no vibration, between the second sliding part and the input knob assembly, thereby improving the vibration damping and filtering effect of the orthopedic adapter during use.

[0033] Please refer to Figures 1 to 4 , Figure 9 and Figure 10 This application provides an orthopedic adapter 100, including a frame 10, an output bearing assembly 20, an input knob assembly 30, and an intermediate transmission assembly 40.

[0034] Frame 10 has a receiving cavity 10a; output bearing assembly 20 is rotatably connected to frame 10, output bearing assembly 20 includes a first end 20a disposed within receiving cavity 10a and a second end 20b coaxially rotatable with the first end 20a, the second end 20b being located outside receiving cavity 10a, the second end 20b being used to connect to output flange 200; input knob assembly 30 is rotatably connected to frame 10, input knob assembly 30 includes an abutment end 30a disposed within receiving cavity 10a and a handle end 30b coaxially rotatable with the abutment end 30a, the handle end 30b being located within receiving cavity The exterior of 10a; the intermediate transmission assembly 40 is disposed in the accommodating cavity 10a. The intermediate transmission assembly 40 includes a first sliding part 41 and a second sliding part 42 that are slidably connected to the frame 10, and an elastic part 43 that abuts against the first sliding part 41 and the second sliding part 42 at opposite ends. The first sliding part 41 is movably connected to the second sliding part 42, and the second sliding part 42 can slide relative to the first sliding part 41 along the sliding direction. The elastic part 43 is in an elastically compressed state. The abutting end 30a is used to abut against the second sliding part 42, and the first sliding part 41 is used to limit the first end 20a.

[0035] Understandably, the frame 10 is the main structure of the orthopedic adapter 100. Typically, the frame 10 is connected to the transmission mechanism of a medical device, for example, by mounting the frame 10 onto a robotic arm.

[0036] The output bearing assembly 20 enables the output flange 200 to rotate relative to the frame 10 about an axis, ultimately allowing the orthopedic instrument mounted on the output flange 200 to rotate relative to the frame 10 about an axis. The first end 20a and the second end 20b are the two opposite ends of the output bearing assembly 20. The first end 20a interacts with the intermediate transmission assembly 40 to transmit torque, while the second end 20b is used for mounting the output flange 200. Furthermore, the first end 20a and the second end 20b rotate synchronously about the same central axis.

[0037] The input knob assembly 30 provides torque for the output flange 200 to rotate about an axis relative to the frame 10. The handle end 30b is for manual operation by the operator, which in turn drives the abutment end 30a to interact with the intermediate transmission assembly 40 to transmit torque. Here, the handle end 30b and the abutment end 30a also rotate synchronously about the same central axis.

[0038] The first sliding part 41 and the second sliding part 42 in the intermediate transmission component are slidably connected to the frame 10. For example, a slide rail can be provided on the inner wall of the frame 10, and the first sliding part 41 and the second sliding part 42 are slidably connected to the slide rail. Alternatively, a slide groove can be provided on the inner wall of the frame 10, and the first sliding part 41 and the second sliding part 42 are slidably connected to the slide groove. Here, the sliding direction of the first sliding part 41 and the second sliding part 42 can be the direction of gravity or the horizontal direction. For example, when the frame 10 is erected on the robotic arm, the sliding direction of the first sliding part 41 and the second sliding part 42 coincides with the height direction of the frame 10. Or, when the frame 10 is horizontally suspended on the robotic arm, the sliding direction of the first sliding part 41 and the second sliding part 42 is the same as the horizontal direction. Of course, in other scenarios, the sliding direction of the first sliding part 41 and the second sliding part 42 can also be at an angle to the direction of gravity or the horizontal direction. The first sliding part 41 and the second sliding part 42 are connected in a movable manner. That is, while ensuring torque transmission, they can also move relative to each other along the sliding direction, which is a flexible connection. The elastic part 43 is in a compressed state, exerting an outward pushing force on the first sliding part 41 and the second sliding part 42, so that the torque can be transmitted from the first sliding part 41 to the second sliding part 42. At the same time, when the applied external force is greater than the elastic force of the elastic part 43, the elastic part 43 can continue to be compressed. At this time, the first sliding part 41 and the second sliding part 42 can slide relative to each other to satisfy the flexible connection between them.

[0039] For example, the first sliding part 41 and the second sliding part 42 are connected by a chain structure. This chain structure can be interpreted as a ring structure, a chain, a wire structure, a flexible conveyor belt, or a combination of the above structures. That is, the chain structure is in a stretched and taut state under the support of the elastic part 43, and when the applied external force is greater than the elastic support force of the elastic part 43, causing the elastic part 43 to continue to compress, the chain structure can be in a relaxed state.

[0040] Alternatively, as an example, the first sliding part 41 and the second sliding part 42 are hinged together by a hook-shaped structure. That is, the first sliding part 41 has a first hook-shaped structure and the second sliding part 42 has a second hook-shaped structure. The two hook-shaped structures are connected by a hook-shaped movable connection, which can also meet the flexible connection requirements of the two.

[0041] The working process of the orthopedic adapter 100 is as follows: The orthopedic adapter 100 should have an initial state and a swing state. In the initial state, no force is applied to the handle end 30b of the input knob assembly 30, and its abutting end 30a abuts against the second sliding part 42 of the intermediate transmission assembly 40. At the same time, the first end 20a of the output bearing assembly 20 is limited to the first sliding part 41. At this time, the output flange 200 connected to the second end 20b remains relatively stationary relative to the frame 10. In the swing state, a force is applied to the handle end 30b of the input knob assembly 30, and the input knob assembly 30 rotates about an axis relative to the frame. At this time, its abutting end 30a loses its abutting effect on the second sliding part 42, and the first sliding part 41 and the second sliding part 42 gain sliding space relative to the frame. The first sliding part 41 releases the limitation on the first end 20a, so that the output bearing assembly 20 can rotate about an axis relative to the frame, and the output flange 200 connected to the second end 20b rotates about an axis relative to the frame 10.

[0042] The orthopedic adapter 100 of the present invention is used for connecting orthopedic instruments, such as oscillating saws and bone files, and can be installed on the transmission mechanism of medical equipment. Its operation is as follows: the input knob assembly 30 is used to input torque to drive the output bearing assembly 20 to rotate around an axis, thereby enabling the orthopedic instrument on the output flange 200 to rotate around the axis and obtain a corresponding rotation angle. In the initial state, no force is applied to the handle end 30b of the input knob assembly 30, and its abutting end 30a abuts against the second sliding part 42 of the intermediate transmission assembly 40. At the same time, the first end 20a of the output bearing assembly 20 is confined to the first sliding part 41. At this time, the abutting end 30a and the first end 20a clamp the first sliding part 41 and the second sliding part 42. Since the elastic part 43 is in a compressed state, and since the first sliding part 41 and the second sliding part 42 are movably connected and can slide relative to each other, that is, they are flexibly connected, the vibration potential energy generated by the orthopedic instrument connected to the output flange 200 is only transmitted to the output bearing assembly 20 and the first sliding part 41, and most of it is absorbed by the elastic part 43. Ultimately, the second sliding part 42 and the input knob assembly 30 produce relatively slight vibration, or even no vibration. In the swing state, the handle end 30b of the input knob assembly 30 is subjected to force, causing the input knob assembly 30 to rotate about an axis relative to the frame. At this time, its abutting end 30a loses its abutting effect on the second sliding part 42, and the first sliding part 41 and the second sliding part 42 gain sliding space relative to the frame. The first sliding part 41 releases its restriction on the first end 20a, allowing the output bearing assembly 20 to rotate about an axis relative to the frame. Similarly, since the first sliding part 41 and the second sliding part 42 are movably connected and can slide relative to each other, the vibration potential energy generated by the rotation of the orthopedic instrument connected to the output flange 200 is only transmitted to the output bearing assembly 20 and the first sliding part 41, and most of it is absorbed by the elastic part 43. Ultimately, the second sliding part 42 and the input knob assembly 30 produce relatively slight vibration, or even no vibration. The orthopedic adapter 100 of this application can effectively filter vibration potential energy in both the initial state and the swing state, thereby improving the stability of the product during use.

[0043] Please refer to Figures 3 to 7 In some embodiments, the first sliding part 41 includes a first sliding body 411 slidably connected to the frame 10 and a first connecting part 412 disposed on the first sliding body 411, and the second sliding part 42 includes a second sliding body 421 slidably connected to the frame 10 and a second connecting part 422 disposed on the second sliding body 421, and the opposite ends of the elastic part 43 abut against the first sliding body 411 and the second sliding body 421 respectively; The first connecting part 412 is movably connected to the second connecting part 422. The first sliding body 411 has a limiting end face 41a for limiting the first end 20a, and the second sliding body 421 has an abutting end face 42a that abuts against the abutting end 30a.

[0044] Understandably, both the first sliding body 411 and the second sliding body 421 are connected to the frame 10 via a sliding connection. The first connecting part 412 and the second connecting part 422 are the parts where the two sliding bodies are directly and movably connected. Therefore, in terms of their positions, the first connecting part 412 and the second connecting part 422 should be positioned opposite each other. This results in the limiting end face 41a being positioned opposite the first connecting part 412, and the abutting end face 42a being positioned opposite the second connecting part 422.

[0045] Here, the structure of the first connecting part 412 and the second connecting part 422 can be as follows: For example, both the first connecting part 412 and the second connecting part 422 are chain structures. Here, a chain structure can be interpreted as a ring structure, a chain, a wire structure, a flexible conveyor belt, or a combination of the above structures. That is, the chain structure is in a stretched and taut state under the support of the elastic part 43, and when the applied external force on the elastic support force of the elastic part 43 causes the elastic part 43 to continue to compress, the chain structure can be in a relaxed state.

[0046] For example, the first connecting part 412 and the second connecting part 422 are hook-shaped structures, and the two hook-shaped structures are connected by a movable connection, which can also meet the flexible connection requirements of the two.

[0047] Thus, by utilizing the sliding connection between the first sliding body 411 and the second sliding body 421 relative to the frame, and by allowing relative sliding between the first connecting part 412 and the second connecting part 422, a flexible connection between the second sliding part 42 and the second sliding part 42 is achieved, thereby improving the vibration filtering effect.

[0048] Please refer to Figure 4 , Figure 6 and Figure 7 In some embodiments, the first connecting portion 412 includes a first hook 4121 disposed on the first sliding body 411; the second connecting portion 422 includes a second hook 4221 disposed on the second sliding body 421, the first hook 4121 is engaged with the second hook 4221, and there is a first connecting gap 4121a between the first hook 4121 and the second sliding body 421, and a second connecting gap 4221a between the second hook 4221 and the first sliding body 411.

[0049] Understandably, in the initial state, the elastic part 43 is in a compressed state, applying an outward pushing force to both the first sliding body 411 and the second sliding body 421, causing the first hook 4121 to hook with the second hook 4221. The first connection gap 4121a between the first hook 4121 and the second sliding body 421 remains unchanged, as does the second connection gap 4221a between the second hook 4221 and the first sliding body 411. Then, when the vibration potential energy generated by the rotation of the orthopedic instrument connected to the output flange 200 is transmitted to the output bearing assembly 20 and the first sliding body 411 of the first sliding part 41, the elastic part 43, located between the first sliding body 411 and the second sliding body 421, can absorb most or all of the vibration potential energy, causing the elastic part 43 to continuously compress. Consequently, the first hook 4121 and the second hook 4221 become loose, and the first connection gap between the first hook 4121 and the second sliding body 421 is broken. As the gap 4121a changes, the second connection gap 4221a between the second hook 4221 and the first sliding body 411 also changes. It can also be considered that there is a relative movement between the first sliding part 41 and the second sliding part 42, so that the vibration potential energy generated by the orthopedic instrument connected to the output flange 200 is only transmitted to the output bearing assembly 20 and the first sliding part 41, and most of it is absorbed by the elastic part 43. Ultimately, the second sliding part 42 and the input knob assembly 30 produce relatively slight vibration, or even no vibration.

[0050] Similarly, in the swing state, the vibration potential energy generated by the rotation of the orthopedic instrument connected to the output flange 200 is only transmitted to the output bearing assembly 20 and the first sliding part 41. The elastic part 43 can continue to absorb the vibration potential energy, ultimately causing the second sliding part 42 and the input knob assembly 30 to produce relatively slight vibration, or even no vibration.

[0051] Thus, the first hook 4121 and the second hook 4221 are engaged and connected, and there is a connection gap between the two and the corresponding sliding body to satisfy the flexible connection between the second sliding part 42 and the second sliding part 42.

[0052] Please refer to Figure 5 In some embodiments, the first connecting portion 412 includes a first abutting portion 4122 disposed on the first sliding body 411, and the second connecting portion 422 includes a second abutting portion 4222 disposed on the second sliding body 421. The first abutting portion 4122 and the second abutting portion 4222 are disposed opposite to each other and spaced apart. The first abutting portion 4122 and the second abutting portion 4222 are connected by a chain structure 44.

[0053] Understandably, there is a gap between the first abutment portion 4122 and the second abutment portion 4222, and they are connected by a chain structure 44. This chain structure 44 can be interpreted as a ring structure, a chain, a wire structure, a flexible conveyor belt, or a combination of the above structures. That is, under the support of the elastic portion 43, the chain structure 44 is in a stretched and taut state. When the applied external force exceeds the elastic support force of the elastic portion 43, causing the elastic portion 43 to continue to compress, the chain structure can be in a relaxed state. At this time, the distance between the first abutment portion 4122 and the second abutment portion 4222 shortens, and they move relative to each other. Similarly, the vibrational potential energy is absorbed by the elastic portion 43, ultimately causing the second sliding portion 42 and the input knob assembly 30 to produce relatively slight vibration, or even no vibration.

[0054] Thus, the chain structure 44 is used to realize the movable connection between the two abutting parts, and to meet the gap required for the flexible connection between the second sliding part 42 and the second sliding part 42.

[0055] Please refer to Figure 11 In some embodiments, the elastic part 43 includes a guide post 431 and a spring 432 sleeved on the guide post 431. One end of the guide post 431 is fixedly connected to one of the first sliding body 411 or the second sliding body 421, and the other end is inserted and connected to the other of the first sliding body 411 or the second sliding body 421.

[0056] Understandably, one end of the guide post 431 is fixedly connected and the other end is movably connected to meet the requirement that the first sliding body 411 and the second sliding body 421 need to move relative to each other, while also providing the corresponding guiding function of the spring 432.

[0057] For example, a first mounting hole can be opened on the first sliding body 411, and the guide post 431 passes through the first mounting hole and is connected to the first sliding body 411 by screws, pins, etc. A second mounting hole can be opened on the second sliding body 421, and the other end of the guide post 431 can be inserted through the second mounting hole.

[0058] Thus, the guide post 431 is used to improve the stability of the force transmission of the spring 432 during the extension and contraction process.

[0059] Please refer to Figure 2 , Figure 3 , Figure 4 and Figure 8In some embodiments, the output bearing assembly 20 includes a bearing frame 21, a first bearing portion 22, and two second bearing portions 23. The bearing frame 21 includes a circular main body portion 211 and a connecting arm portion 212 disposed on the circular main body portion 211. The circular main body portion 211 is rotatably connected to the frame 10 through the first bearing portion 22. The rotation center of each second bearing portion 23 is symmetrically disposed on the connecting arm portion 212 about the geometric center of the circular main body portion 211. Each second bearing portion 23 is used to abut against the limiting end face 41a. The connecting arm portion 212 is adapted to the inner wall of the accommodating cavity 10a. The second bearing portion 23 has a first end portion 20a, and the circular main body portion 211 has a second end portion 20b.

[0060] Understandably, the bearing housing 21 is the main structure of the output bearing assembly 20 and also a structural component that rotates around an axis relative to the frame 10. The first bearing portion 22 is fitted onto the outer periphery of the circular main body portion 211 of the bearing housing 21. The frame 10 should have a mounting groove for the first bearing portion 22. The connecting arm portion 212 should be offset from the circular main body portion 211. The line connecting the rotation centers of the two second bearing portions 23 on the connecting arm portion 212 should be non-collinear with the geometric center of the circular main body portion 211. Furthermore, since the rotation centers of each second bearing portion 23 are symmetrically located about the geometric center of the circular main body portion 211 on the connecting arm portion 212, in the swinging state, the connecting arm portion 212 rotates around an axis with the circular main body portion 211. One of the second bearing portions 23 disengages from the limiting end face 41a of the first sliding portion 41, while the other second bearing portion 23 contacts the limiting end face 41a of the first sliding portion 41, thereby achieving the purpose of releasing the limiting position. In the initial state, the connecting arm 212 is adapted to the inner wall of the accommodating cavity 10a, and the two second bearing parts 23 abut against the limiting end face 41a of the first sliding part 41. That is, the line connecting the rotation centers of the two second bearing parts 23 should be parallel or approximately parallel to the limiting end face 41a of the first sliding part 41 to achieve the purpose of limiting. In other words, the bearing frame 21 cannot rotate around the axis relative to the frame 10.

[0061] Thus, the first bearing portion 22 is used to meet the relative rotation requirement between the bearing frame 21 and the frame 10, and the two second bearing portions 23 and the limiting end face 41a are used to limit the output bearing assembly 20 to maintain stability in the initial state.

[0062] In other embodiments, an annular energy-absorbing component may be added between the frame 10 and the first bearing portion 22. That is, the first bearing portion 22 and the frame 10 are indirectly connected. The annular energy-absorbing component should be a structural component with a certain hardness and capable of deformation to absorb vibration potential energy. For example, the material of the annular energy-absorbing component may be rubber, resin, etc.

[0063] Please refer to Figure 2 and Figure 3 In some embodiments, the input knob assembly 30 includes a toggle body 31 rotatably connected to the frame, an abutment bearing portion 32 disposed on the toggle body 31, and a handle portion 33 connected to the toggle body 31. The abutment bearing portion 32 has an abutment end 30a, the handle portion 33 has a handle end 30b, and the abutment end face 42a is adapted to the abutment bearing portion 32.

[0064] Understandably, the actuating body 31 abuts against the abutting end face 42a of the second sliding part 42 via the abutting bearing part 32 to keep the first sliding part 41 and the second sliding part 42 stationary relative to the frame 10. When the handle part 33 drives the actuating body 31 to rotate about the axis relative to the frame 10, the abutting bearing part 32 disengages from the abutting end face 42a to release the restriction on the second sliding part 42. At this time, the first sliding part 41 and the second sliding part 42 can move relative to the frame 10. Finally, after the restriction is released, the bearing bracket 21 rotates about the axis relative to the frame 10.

[0065] Optionally, the abutting end face 42a can be an arc-shaped surface adapted to abut the bearing portion 32. By adapting the arc-shaped surface to the bearing portion 32, dynamic balance is maintained when the second sliding portion 42 abuts.

[0066] Thus, by applying force to the handle 33, the actuating body 31 rotates around the axis, thereby causing the bearing part 32 to disengage from the bearing end face 42a, and finally the intermediate transmission assembly 40 slides relative to the frame 10, so as to release the limit on the output bearing assembly 20.

[0067] Please refer to Figure 4 In some embodiments, the second sliding body 421 further has a sliding end face 42b connected to the abutment end face 42a, the sliding end face 42b being used for the abutment bearing portion 32 to roll.

[0068] Understandably, the sliding end face 42b is used for the continuous action of the bearing portion 32, especially in the swinging state, when the bearing portion 32 rolls on the sliding end face 42b. At this time, the second sliding portion 42 can continuously slide relative to the frame 10, thereby releasing the limiting end face 41a of the first sliding portion 41 from limiting the second bearing portion 23.

[0069] Thus, the abutting bearing portion 32 can slide relative to the sliding end face 42b, so that the actuating body 31 can rotate more smoothly around the axis relative to the frame 10.

[0070] Please refer to Figure 11In some embodiments, the orthopedic adapter 100 includes a micro switch 50 disposed in the receiving cavity 10a and located directly below the actuating body 31. The actuating body 31 has a release part 31a disposed opposite to the abutting bearing part 32 and a pressing part 31b connected to the release part 31a. The release part 31a and the pressing part 31b interact sequentially with the trigger end of the micro switch 50 when the actuating body 31 rotates about the axis.

[0071] Understandably, the micro switch 50 is used to provide feedback on the current usage status of the orthopedic adapter 100. Its operation is as follows: The trigger end of the micro switch 50 is located at the release part 31a of the actuating body 31. At this time, the trigger end of the micro switch 50 is in a non-triggered state, and the orthopedic adapter 100 is in its initial state. Driven by the handle part 33, the actuating body 31 rotates relative to the frame 10. At this time, the pressing part 31b of the actuating body 31 presses against the trigger end of the micro switch 50, thus activating the micro switch 50. The orthopedic adapter 100 then enters a swinging state.

[0072] For example, the release part 31a is a notch, groove or other clearance structure formed on the toggle body 31, and the trigger end of the micro switch 50 is placed at the clearance structure and is in an unpressurized state; the pressing part 31b is a protruding structure such as a protruding post or rib formed on the toggle body 31, and the trigger end of the micro switch 50 is pressed by the protruding structure and triggered, thus being in the working state.

[0073] Thus, by using the micro switch 50 to provide feedback on the current usage status of the orthopedic adapter 100, the overall usage process becomes clearer and more accurate.

[0074] Secondly, this application also provides a medical device, including the orthopedic adapter 100 as described above.

[0075] The medical device of the present invention, based on the above-mentioned orthopedic adapter 100, has better shock resistance and higher stability in use.

[0076] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An orthopedic adapter, characterized in that, include: A frame having a receiving cavity; An output bearing assembly is rotatably connected to the frame. The output bearing assembly includes a first end disposed within the accommodating cavity and a second end coaxially rotatable with the first end. The second end is located outside the accommodating cavity and is used to connect to an output flange. An input knob assembly is rotatably connected to the frame. The input knob assembly includes an abutting end disposed in the accommodating cavity and a handle end coaxially rotatable with the abutting end. The handle end is located outside the accommodating cavity. An intermediate transmission assembly is disposed within the accommodating cavity. The intermediate transmission assembly includes a first sliding portion and a second sliding portion that are slidably connected to the frame, and an elastic portion whose opposite ends respectively abut against the first sliding portion and the second sliding portion. The first sliding portion is movably connected to the second sliding portion, and the second sliding portion is capable of sliding relative to the first sliding portion along the sliding direction. The elastic portion is in an elastically compressed state. The abutting end is used to abut against the second sliding portion, and the first sliding portion is used to limit the first end.

2. The orthopedic adapter according to claim 1, characterized in that: The first sliding part includes a first sliding body slidably connected to the frame and a first connecting part disposed on the first sliding body; the second sliding part includes a second sliding body slidably connected to the frame and a second connecting part disposed on the second sliding body; the opposite ends of the elastic part abut against the first sliding body and the second sliding body respectively. The first connecting part is movably connected to the second connecting part, the first sliding body has a limiting end face for limiting the first end, and the second sliding body has an abutting end face that abuts against the abutting end.

3. The orthopedic adapter according to claim 2, characterized in that: The first connecting part includes a first hook disposed on the first sliding body; the second connecting part includes a second hook disposed on the second sliding body, the first hook is engaged with the second hook, and there is a first connecting gap between the first hook and the second sliding body, and a second connecting gap between the second hook and the first sliding body.

4. The orthopedic adapter according to claim 2, characterized in that: The first connecting part includes a first abutting part disposed on the first sliding body, and the second connecting part includes a second abutting part disposed on the second sliding body. The first abutting part and the second abutting part are disposed opposite to each other and spaced apart. The first abutting part and the second abutting part are connected by a chain structure.

5. The orthopedic adapter according to claim 2, characterized in that: The elastic part includes a guide post and a spring sleeved on the guide post. One end of the guide post is fixedly connected to one of the first sliding body or the second sliding body, and the other end is inserted and connected to the other of the first sliding body or the second sliding body.

6. The orthopedic adapter according to claim 2, characterized in that: The output bearing assembly includes a bearing frame, a first bearing portion, and two second bearing portions. The bearing frame includes a circular main body portion and a connecting arm portion disposed on the circular main body portion. The circular main body portion is rotatably connected to the frame through the first bearing portion. The rotation center of each second bearing portion is symmetrically disposed on the connecting arm portion about the geometric center of the circular main body portion. Each second bearing portion is used to abut against the limiting end face. The connecting arm portion is adapted to the inner wall of the accommodating cavity. The second bearing portion has a first end portion, and the circular main body portion has a second end portion.

7. The orthopedic adapter according to claim 2, characterized in that: The input knob assembly includes a toggle body rotatably connected to the frame, an abutting bearing portion disposed on the toggle body, and a handle portion connected to the toggle body. The abutting bearing portion has an abutting end, and the handle portion has a handle end. The abutting end face is adapted to the abutting bearing portion.

8. The orthopedic adapter according to claim 7, characterized in that: The second sliding body also has a sliding end face connected to the abutting end face, the sliding end face being used for the abutting bearing portion to roll.

9. The orthopedic adapter according to claim 7, characterized in that: The orthopedic adapter includes a micro switch disposed within the accommodating cavity and located directly below the actuating body. The actuating body has a release portion disposed opposite to the abutting bearing portion and a pressing portion connected to the release portion. The release portion and the pressing portion interact sequentially with the trigger end of the micro switch when the actuating body rotates around the axis.

10. A medical device, characterized in that: Includes the orthopedic adapter as described in any one of claims 1 to 9.

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