Medical power handle and surgical power equipment

Abstract

The invention discloses a medical power handle and surgical power equipment, and relates to the technical field of medical instruments.The medical power handle comprises a handle body and an integrated assembly, and the handle body is provided with a cavity extending in the axial direction of the handle body; the integrated assembly comprises a coil sleeve arranged in the cavity, an identification coil wound on the periphery of the coil sleeve and a circuit board integrated on the periphery of the coil sleeve, and a leading-out wire of the identification coil and a connecting wire of the circuit board are converged on the periphery of the coil sleeve and led out of the handle body through the cavity. According to the technical scheme provided by the invention, the problem that the wire of the existing circuit board and the lead-out wire of the identification coil are inconvenient to lead out is solved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a medical power handpiece and surgical power device. Background Technology

[0002] In the field of minimally invasive medical devices, some medical power handles are adapted to disposable cutting tools, so that the energy output from the built-in power source can be transmitted to the cutting tool to perform planing, grinding, milling, drilling and other processing on human tissue; if the medical power handle is equipped with an identification coil, the power handle can identify the installed cutting tool.

[0003] For medical powered handpieces with identification function, during assembly, the wiring of the identification coil and the wiring of the internal circuit board need to be led to the main unit; however, the wiring of the identification coil and the wiring of the internal circuit board of existing powered handpieces need to pass through the channels on other components inside the powered handpiece to reach the tail of the medical powered handpiece, which makes the assembly operation difficult. Summary of the Invention

[0004] The main objective of this invention is to provide a medical power handle and surgical power device, which aims to solve the problem that the wires and identification coil leads of existing circuit boards are inconvenient to bring out.

[0005] To achieve the above objectives, the present invention provides a medical powered handpiece, the medical powered handpiece comprising:

[0006] The handle body has a cavity extending along its own axial direction;

[0007] The integrated component includes a coil sleeve disposed within the cavity, an identification coil wound around the outer periphery of the coil sleeve, and a circuit board integrated around the outer periphery of the coil sleeve. The lead wires of the identification coil and the connecting wires of the circuit board converge at the outer periphery of the coil sleeve and extend out of the handle body through the cavity.

[0008] In one embodiment, the handle body has a mounting cavity that extends from the outer wall of the handle body into the interior of the handle body and communicates with the cavity. A button assembly is detachably provided in the mounting cavity, and the mounting cavity is positioned directly opposite the circuit board.

[0009] In one embodiment, the cavity includes a main space and a lead wire space disposed on the outer periphery of the main space. Both the main space and the lead wire space extend along the axial direction of the handle body, and the lead wire and the connecting wire are led out of the handle body through the lead wire space.

[0010] In one embodiment, the outer periphery of the coil sleeve is provided with a groove, the groove is in communication with the lead space, and the circuit board is installed in the groove.

[0011] In one embodiment, the coil sleeve is provided with partition protrusions, which are axially disposed between the identification coil and the groove. The partition protrusions are provided with slots that communicate with the groove, and the lead wire of the identification coil is partially locked in the slots.

[0012] In one embodiment, the medical power handle further includes a motor assembly, which includes a fixed part disposed relatively fixed in the cavity and an output part rotatably disposed in the fixed part. The front end of the fixed part is disposed adjacent to the rear end of the coil sleeve to form a partial space inside the coil sleeve for inserting a cutting tool. The output part extends into the internal space of the coil sleeve to connect the cutting tool.

[0013] In one embodiment, the medical power handle further includes a first sealing structure, which is disposed between the cavity wall and the coil sleeve, and in front of the identification coil.

[0014] In one embodiment, the medical power handle further includes a second sealing structure, which is disposed between the fixing part and the coil sleeve, and is located behind the circuit board.

[0015] In one embodiment, the front end of the fixing part is provided with an embedding groove, and the rear end of the coil sleeve is provided with a pressing part; the second sealing structure includes an elastic pad, the elastic pad is disposed in the embedding groove, and the pressing part extends into the embedding groove and abuts against the elastic pad.

[0016] The present invention also proposes a surgical power device, which includes a medical power handle as described in any of the above embodiments and a cutting tool adapted to the medical power handle.

[0017] In the technical solution of this invention, electronic components such as a coil sleeve, an identification coil, and a circuit board are provided in the cavity of the handle body. The identification coil is wound around the outer circumference of the coil sleeve, and the circuit board is set on the outer circumference of the coil sleeve. That is to say, the identification coil and the circuit board are placed in the same area (on the coil sleeve), and then they are organized and bundled together at the convergence point. They are then led out through the cavity and through the wire outlet hole on the handle body to connect to the main motor. There is no need to use other additional channels inside the handle body for wiring. This centralized wiring method not only facilitates the lead-out of the wires, but also avoids the mess and crossover of the internal wiring. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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 the structures shown in these drawings without creative effort.

[0019] Figure 1 A schematic diagram of an embodiment of the medical power handle provided by the present invention;

[0020] Figure 2 A partial structural schematic diagram of an embodiment of the medical power handle provided by the present invention;

[0021] Figure 3 A schematic diagram of the coil sleeve in another embodiment of the medical power handle provided by the present invention;

[0022] Figure 4 A schematic diagram of the coil sleeve in another embodiment of the medical power handle provided by the present invention.

[0023] Explanation of icon numbers:

[0024] 100. Medical powered handpiece; 1. Handpiece body; 11. Cavity; 111. Main space; 112. Lead wire space; 12. Mounting cavity; 2. Integrated assembly; 21. Coil sleeve; 211. Groove; 212. Partition protrusion; 2120. Wire clamping part; 2121. Wire clamping slot; 213. Crimping part; 214. Wire placement groove; 22. Identification coil; 23. Circuit board; 24. Lead wire; 3. Button assembly; 4. Motor assembly; 41. Fixing part; 411. Embedding groove; 42. Output part; 5. First sealing structure; 6. Second sealing structure; 61. Elastic pad.

[0025] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0029] For medical powered handpieces with identification function, during assembly, the wiring of the identification coil and the wiring of the internal circuit board need to be led to the main unit; however, the wiring of the identification coil and the wiring of the internal circuit board of existing powered handpieces need to pass through the channels on other components inside the powered handpiece to reach the tail of the medical powered handpiece, which makes the assembly operation difficult.

[0030] In view of the above problems, the present invention proposes a medical power handle.

[0031] Please see Figure 1 and Figure 2 In one embodiment of the present invention, the medical power handle 100 includes:

[0032] The handle body 1 has a cavity 11 extending along its own axial direction;

[0033] The integrated component 2 includes a coil sleeve 21 disposed in the cavity 11, an identification coil 22 wound around the outer periphery of the coil sleeve 21, and a circuit board 23 integrated around the outer periphery of the coil sleeve 21. The lead wire 24 of the identification coil 22 and the connecting wire of the circuit board 23 converge at the outer periphery of the coil sleeve 21 and are led out of the handle body 1 through the cavity 11.

[0034] It should be noted that the identification coil 22 itself is wound on the coil sleeve 21, while the lead wire 24 of the identification coil 22 is not wound on the coil sleeve 21. The lead wire 24 can be made of a different material from the identification coil 22, or it can be made of the same material as the identification coil 22 in part or in whole. For example, the identification coil 22 is formed by winding a first type of wire on the coil sleeve 21. After the first type of wire is wound, the remaining part of the wire is used as part of the lead wire 24. A second type of wire is connected to the first type of wire to construct another part of the lead wire 24.

[0035] In the technical solution of the present invention, electronic components such as a coil sleeve 21, an identification coil 22, and a circuit board 23 are provided in the cavity 11 of the handle body 1. The identification coil 22 is wound around the outer periphery of the coil sleeve 21, and the circuit board 23 is disposed on the outer periphery of the coil sleeve 21. That is to say, before the integrated component 2 is installed into the handle body 1, the identification coil 22 and the circuit board 23 can be placed in the same area (on the coil sleeve 21), and the lead wire 24 of the identification coil 22 and the connecting wire of the circuit board 23 can be gathered together by means of sorting, bundling, etc., so that after the integrated component 2 is installed into the handle body 1, the gathered lines are uniformly led out through the cavity 11 and the wire outlet hole on the handle body 1 to connect with the main motor, without the need to thread the wires through other additional channels inside the handle body 1. This centralized wiring method not only facilitates the lead-out of the wires, but also avoids the messy crossover of the internal lines.

[0036] It is worth mentioning that the "convergence" in "the connection line of the lead wire 24 of the identification coil 22 and the connection line of the circuit board 23 converges" does not mean that the two are electrically connected. It only means that the two meet in spatial position. In addition, an insulating protective sleeve or a reinforcing structure can be provided at the convergence point of the connection line of the lead wire 24 of the identification coil 22 and the connection line of the circuit board 23. These converged wire bundles reach the tail of the handle body 1 along the gap between the coil sleeve 21 and the inner wall of the cavity 11 or the reserved wiring groove. After passing through one or more wire outlet holes on the end cap of the tail of the handle body 1, they are electrically connected to the host. Optionally, a sealing ring can also be provided at the wire outlet hole to prevent external moisture or impurities from entering the cavity 11 through the wire outlet hole.

[0037] Optionally, the handle body 1 can be made of plastic or metal. The cavity 11 includes a cylindrical channel extending along the length of the handle, the diameter of which is slightly larger than the diameter of the coil sleeve 21 to facilitate assembly. Optionally, the rear end of the cavity 11 has a closable opening with a step or chamfer to guide the installation of the integrated assembly 2 and protect the internal components. The coil sleeve 21 can be cylindrical; please refer to [reference needed]. Figure 3The coil sleeve 21 may be provided with a wire placement groove 214, which may be a continuous spiral groove or multiple annular grooves spaced apart. A wire hole or groove is provided between adjacent annular grooves, allowing the identification coil 22 to run around the adjacent preceding annular groove and then enter the following annular groove through the wire hole or groove. Alternatively, a single wire placement groove 214 may be provided at the end of the coil sleeve 21, serving as a convergence point or routing path for the lead wire 24 of the identification coil 22 and the connecting wire of the circuit board 23. The circuit board 23 may be a flexible printed circuit board (FPC) or a rigid printed circuit board (PCB).

[0038] In an embodiment of the present invention, please refer to Figure 2 The handle body 1 has a mounting cavity 12, which extends from the outer wall of the handle body 1 into the interior of the handle body 1 and connects to the cavity 11. A button assembly 3 is detachably mounted inside the mounting cavity 12, and the mounting cavity 12 is positioned directly opposite the circuit board 23. The mounting cavity 12 can be configured as a positioning groove structure, recessed from the outer side of the handle body 1 and extending inward, ultimately connecting to the cavity 11 inside the handle, and forming a positioning step inside to limit the positioning of the button assembly 3. The button assembly 3 can include a button and an elastic reset structure located below the button. The button assembly 3 can be fixed in the mounting cavity 12 by simple snap-fit ​​connection or by screws to fix it to the handle body 1, making it fixed relative to the mounting cavity 12. The mounting cavity 12 being positioned directly opposite the circuit board 23 allows the conductive contacts or flexible printed circuit board (FPC) on the button assembly 3 to directly extend to the corresponding interface on the circuit board 23 from this direction, easily achieving electrical connection.

[0039] In an embodiment of the present invention, please refer to Figure 2 The cavity 11 includes a main space 111 and a lead wire space 112 located around the main space 111. Both the main space 111 and the lead wire space 112 extend along the axial direction of the handle body 1. The lead wire 24 and connecting wire are led out of the handle body 1 through the lead wire space 112. It should be noted that the main space 111 and the lead wire space 112 are not substantially divided here. The description here is only for the convenience of describing the functions of the two spaces. The main space 111 is the most important part of the cavity 11 inside the handle body 1, mainly used to accommodate the circuit board 23, motor, identification coil 22, or other main functional units. The lead wire space 112 can be a channel arranged around the outside of the main space 111 and extending along the axial direction of the handle body 1. The size of the lead wire space 112 can be designed according to the number of cables to be led out. It should be noted that the main space 111 is not necessarily a circular channel and can be adapted and changed according to the shape of the handle body 1 and the shape and layout of the internal motor and identification coil 22.

[0040] In an embodiment of the present invention, please refer to Figure 3 and Figure 4The coil sleeve 21 has a groove 211 on its outer periphery, which communicates with the lead wire space 112. The circuit board 23 is installed in the groove 211. The coil sleeve 21 can be a hollow cylinder made of plastic (such as ABS or PC) to avoid interference with the recognition signal. The annular or partially annular groove 211 is formed on its outer periphery. The position of the groove 211 should ensure that the connectors on the circuit board 23 (such as the wiring harness connecting the button assembly 3 or the lead wire space 112) can be smoothly connected after the circuit board 23 is installed, and that the circuit board 23 itself will not interfere with other components (such as the battery or motor) in the handle. Optionally, one side (or both sides) of the groove 211 can be directly aligned with the entrance of the lead wire space 112. For example, an open notch is formed at the end of the groove 211, which is connected to the channel of the lead wire space 112. In this way, the connecting wires (e.g., for connecting external sensors or directly leading out as power / signal lines) extending from the edge of the circuit board 23 can be conveniently inserted directly into the lead space 112 from the recess 211.

[0041] In an embodiment of the present invention, please refer to Figure 3 and Figure 4 The coil sleeve 21 has a partitioned protrusion 212, which is axially positioned between the identification coil 22 and the groove 211. The partitioned protrusion 212 has a slot 2121, which communicates with the groove 211. The lead wire 24 of the identification coil 22 is partially locked in the slot 2121. The partitioned protrusion 212 can be annular, semi-annular, or irregular in shape, as long as it can be positioned axially between the identification coil 22 and the groove 211. Its height must be sufficient to accommodate the slot 2121. The slot 2121 can be a rectangular slot with a width slightly larger than the diameter of the lead wire 24. The depth of the slot must be sufficient to reliably lock the cable in place without causing it to come out, but without excessively compressing the cable. In this way, after the lead wire 24 is led out from the body of the identification coil 22, it reaches the position of the partition protrusion 212 along the outer wall of the coil sleeve 21 or the reserved channel, and then extends into the slot 2121 to be fixed, so as to facilitate the connection with the cable on the circuit board 23.

[0042] Optionally, a wire-locking portion 2120 is provided radially outward on the partition protrusion 212, and a slot 2121 is provided on the wire-locking portion 2120. The wire-locking portion 2120 extends into the lead wire space 112 to restrict the rotation of the integrated component 2 relative to the handle body 1. With this structure, the lead wire space 112 can not only be used for wiring, but also limit the position of the integrated component 2. There is no need to set an additional structure to prevent the integrated component 2 from rotating relative to the handle body 1, which helps to simplify the internal structure of the medical power handle 100, thereby reducing manufacturing costs. Furthermore, after the lead wire 24 of the identification coil 22 is led out from the slot 2121, the convergence point of its connection line with the circuit board 23 must be located in the lead wire space 112. After convergence, it directly passes through the lead wire space 112, resulting in neat wiring.

[0043] Optionally, the lead wire space 112 extends to the tail end of the handle body 1, and the tail end of the handle body 1 is detachably provided with an end cap, on which the wire outlet is located. With this structure, during assembly, the snap-in portion of the integrated component 2 can be aligned with the lead wire space 112 at the tail end of the handle body 1, and then the integrated component 2 can be directly pushed forward into the cavity 11 of the handle body 1. This ensures that the converged wire is already in the lead wire space 112 when inserted into the handle body 1, which helps ensure neat wiring and convenient operation.

[0044] In an embodiment of the present invention, please refer to Figure 2 The medical power handle 100 also includes a motor assembly 4. The motor assembly 4 includes a fixed part 41 disposed relatively fixed in the cavity 11 and an output part 42 rotatably disposed in the fixed part 41. The front end of the fixed part 41 is adjacent to the rear end of the coil sleeve 21 so that a partial space for inserting a cutting tool is formed inside the coil sleeve 21. The output part 42 extends into the internal space of the coil sleeve 21 to connect the cutting tool. Here, "front end of fixed part 41" refers to the side of fixed part 41 away from the tail of the handle, that is, the side close to the cutting head after the cutting tool is inserted. "Rear end" refers to the side of fixed part 41 close to the tail of the handle (usually the end for gripping or connecting the power cord). By placing the front end of the fixing part 41 close to the rear end of the coil sleeve 21, the internal space of the coil sleeve 21 can be better utilized for the output part 42 to extend into and connect with the tool drive. Compared with the existing medical power handle 100 where the output part 42 and the identification coil 22 have a longer axial distance, this structure achieves a compact axial arrangement, which is more conducive to the weight reduction of the entire medical power handle 100 and reduces the load on the doctor during the surgical operation.

[0045] In an embodiment of the present invention, please refer to Figure 1The medical power handle 100 also includes a first sealing structure 5, which is located between the cavity wall of the cavity 11 and the coil sleeve 21, and in front of the identification coil 22. The first sealing structure 5 can be an O-ring or a lip seal, etc., which creates pre-compression between the cavity wall of the cavity 11 and the outer wall of the coil sleeve 21. This not only forms a sealing barrier from the area in front of the identification coil 22 to prevent external contaminants from intruding into the identification coil 22 and its surrounding area, but also provides radial support and positioning for the coil sleeve 21. For the installation of the first sealing structure 5, an annular groove can be provided on the outer periphery of the coil sleeve 21 (in front of the identification coil 22) to allow the first sealing structure 5 to be compressed and form a seal. Alternatively, this annular groove can be located on the cavity wall of the cavity 11.

[0046] In an embodiment of the present invention, please refer to Figure 1 and Figure 2 The medical power handle 100 also includes a second sealing structure 6, which is located between the fixing part 41 and the coil sleeve 21, and behind the circuit board 23. The second sealing structure 6 can also be an O-ring or a lip seal, etc. By placing it between the fixing part 41 and the coil sleeve 21, it can effectively prevent contaminants from the tail or sides of the handle from entering the area where the circuit board 23 and the identification coil 22 are located, protecting the identification circuit and the connection circuit of the circuit board 23, and preventing short circuits, corrosion, or performance degradation. Thus, through its synergistic effect with the first sealing structure 5, it can seal both ends of the identification coil 22 axially and the circuit board 23.

[0047] In an embodiment of the present invention, please refer to Figure 2 The front end of the fixing part 41 is provided with an embedding groove 411, and the rear end of the coil sleeve 21 is provided with a pressing part 213. The second sealing structure 6 includes an elastic pad 61, which is disposed in the embedding groove 411, and the pressing part 213 extends into the embedding groove 411 and abuts against the elastic pad 61. That is, the embedding groove 411 is machined at the front end of the fixing part 41 (the stator part of the motor), and correspondingly, the pressing part 213 is provided at the rear end of the coil sleeve 21 (on the side near the tail of the handle body 1). The elastic pad 61 is confined in the embedding groove 411, and its position is fixed, making it difficult to shift or rotate. The pressing part 213 directly applies pressure to it, ensuring tight contact between the elastic pad 61 and the inner wall of the fixing part 41, and between the elastic pad 61 and the pressing part 213 of the coil sleeve 21, forming a reliable sealing interface. Optionally, the crimping part 213 is a structure that protrudes outward from the rear end of the coil sleeve 21. It can be a protrusion with a specific contour (such as an arc shape). The arc shape can increase the contact area with the elastic pad 61 and make it easier to "slide" into the embedding groove 411 to achieve a more effective seal.

[0048] This invention also proposes a surgical power device, which includes a medical power handle 100 as described in any of the above embodiments and a cutting tool adapted to the medical power handle 100. The specific structure of the medical power handle 100 is as described in the above embodiments. Since this surgical power device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. It should be noted that the type of medical cutting tool is not specifically limited, for example, it can be a planing tool, a grinding tool, etc.

[0049] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of protection of the present invention. Any equivalent structural transformations made based on the technical concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. A medical powered handpiece, characterized in that, The medical power handpiece includes: The handle body has a cavity extending along its own axial direction; The integrated component includes a coil sleeve disposed within the cavity, an identification coil wound around the outer periphery of the coil sleeve, and a circuit board integrated around the outer periphery of the coil sleeve. The lead wires of the identification coil and the connecting wires of the circuit board converge at the outer periphery of the coil sleeve and extend out of the handle body through the cavity.

2. The medical power handle as described in claim 1, characterized in that, The handle body has a mounting cavity that extends from the outer wall of the handle body into the interior of the handle body and communicates with the cavity. A button assembly is detachably provided in the mounting cavity, and the mounting cavity is positioned directly opposite the circuit board.

3. The medical power handle as described in claim 1, characterized in that, The cavity includes a main space and a lead wire space located on the outer periphery of the main space. Both the main space and the lead wire space extend along the axial direction of the handle body. The lead wire and the connecting wire are led out of the handle body through the lead wire space.

4. The medical power handle as described in claim 3, characterized in that, The outer periphery of the coil sleeve is provided with a groove, which communicates with the lead wire space, and the circuit board is installed in the groove.

5. The medical power handle as described in claim 4, characterized in that, The coil sleeve is provided with partition protrusions, which are axially located between the identification coil and the groove. The partition protrusions are provided with slots that communicate with the groove, and the lead wire of the identification coil is partially locked in the slots.

6. The medical power handle as described in claim 1, characterized in that, The medical power handle also includes a motor assembly, which includes a fixed part located in the cavity and an output part located in the fixed part. The front end of the fixed part is adjacent to the rear end of the coil sleeve to form a partial space inside the coil sleeve for inserting a cutting tool. The output part extends into the internal space of the coil sleeve to connect the cutting tool.

7. The medical power handle as described in claim 6, characterized in that, The medical power handle also includes a first sealing structure, which is located between the cavity wall and the coil sleeve, and in front of the identification coil.

8. The medical power handle as described in claim 6, characterized in that, The medical power handle also includes a second sealing structure, which is located between the fixing part and the coil sleeve, and behind the circuit board.

9. The medical power handle as described in claim 8, characterized in that, The front end of the fixing part is provided with an embedding groove, and the rear end of the coil sleeve is provided with a pressing part; the second sealing structure includes an elastic pad, the elastic pad is disposed in the embedding groove, and the pressing part extends into the embedding groove and abuts against the elastic pad.

10. A surgical power device, characterized in that, The surgical power device includes a medical power handle as described in any one of claims 1 to 9 and a cutting tool adapted to the medical power handle.

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