Cable fixing assembly and medical power handle
By installing a cable fixing component at the cable of the medical power handle and using the elastic deformation of the seal to seal the gap, the problem of water vapor seeping in and damaging electrical components is solved, thus achieving a sealing effect on the handle.
Patent Information
- Application Number
- CN202422933256.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-11-29
AI Technical Summary
When existing medical power handles are cleaned and disinfected in a high-temperature steam environment, water vapor can easily seep into the handle and damage electrical components, causing short circuits or malfunctions.
A cable fixing assembly is installed at the cable of the medical power handle, including a cable mounting sleeve, a seal, and fasteners. The elastic deformation of the seal seals the gap between the cable and the through hole, preventing water vapor from seeping in.
It effectively prevents water vapor in high-temperature steam from seeping into the handle, protecting electrical components and preventing short circuits or malfunctions.
Smart Images
Figure CN223731423U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical device technology, and in particular to a cable fixing assembly and a medical power handle. Background Technology
[0002] In surgical procedures involving the removal of bone or soft tissue, a power handle is connected to a cutting tool to provide power for cutting the diseased bone or soft tissue.
[0003] After use, the power handle needs to be steam cleaned and sterilized in a high-temperature, high-pressure, and sterilization environment for future use. However, after prolonged use, water vapor in the high-temperature steam environment can easily seep into the handle through the cable at the tail end, damaging the internal electrical components and causing short circuits or malfunctions. Utility Model Content
[0004] Therefore, it is necessary to provide a cable fixing assembly and a medical powered handpiece that can solve the problem of water vapor continuously seeping into the handpiece and damaging the electrical components inside the handpiece after long-term use due to poor sealing at the factory when the existing medical powered handpiece is cleaned and disinfected in a high-temperature steam environment.
[0005] According to one aspect of this application, a cable fixing assembly is provided for threading cables, the cable fixing assembly comprising:
[0006] A cable mounting sleeve is used to seal and connect to the near end of the handle housing. The cable mounting sleeve has a through hole. When the cable mounting sleeve is sealed and connected to the handle housing, the through hole connects the internal cavity of the handle housing to the external environment.
[0007] A sealing element is disposed within the through hole and sleeved on the cable;
[0008] A first fastener is fitted onto the cable and connected to the cable mounting sleeve. The first fastener is operably movable along the central axis of the cable to abut against or disengage from the seal.
[0009] When the first fastener directly or indirectly abuts against the seal, the seal undergoes elastic deformation to seal the gap formed between the outer peripheral surface of the cable and the inner wall of the through hole.
[0010] In one embodiment, a thrust member is further provided in the through hole, and the first fastener indirectly abuts against the seal through the thrust member. One end of the thrust member along the axial direction of the cable abuts against the first fastener, and the other end is provided with a pushing part.
[0011] When the first fastener indirectly abuts against the seal through the thrust member, the pushing part converts part of the axial force applied by the first fastener into a radial force on the seal, so that the seal expands radially and makes sealing contact with the outer peripheral surface of the cable.
[0012] In one embodiment, the pushing portion has an inclined surface that is axially inclined relative to the through hole, such that when the first fastener indirectly abuts against the seal, the pushing portion is inserted between the outer wall of the seal and the inner wall of the through hole, thereby pushing the seal to undergo elastic deformation and causing the seal to be partially located in the receiving space formed by the inclined surface and the outer wall of the cable.
[0013] In one embodiment, the first fastener is threadedly connected to the cable mounting sleeve.
[0014] In one embodiment, the through hole is provided with an axial limiting stepped surface. When the first fastener directly or indirectly abuts against the seal, one end of the seal along its own axial direction abuts against the limiting stepped surface, and the other end abuts against the first fastener.
[0015] Alternatively, the through hole includes a tapered hole, the sealing element is disposed in the tapered hole, the tapered hole has a large end and a small end, and the first fastener and the sealing element are arranged sequentially along the direction from the large end to the small end.
[0016] According to another aspect of this application, a medical powered handpiece is provided, the medical powered handpiece comprising:
[0017] A handle housing, the proximal end of which has a mounting port communicating with its own internal cavity;
[0018] A cable fixing assembly, wherein the cable fixing assembly is any of the cable fixing assemblies described above, and the cable mounting sleeve of the cable fixing assembly is inserted into the mounting port;
[0019] The cable is threaded through the through hole;
[0020] A sealing ring is disposed between the outer wall of the cable mounting sleeve and the inner wall of the handle housing to seal the gap between the cable mounting sleeve and the handle housing.
[0021] In one embodiment, the handle further includes a second fastener fitted onto the cable mounting sleeve, the second fastener being threadedly connected to the handle housing, the outer peripheral surface of the cable mounting sleeve having a stepped surface facing the second fastener, and the second fastener being movable along the central axis of the cable mounting sleeve to abut against or disengage from the stepped surface.
[0022] The aforementioned cable assembly and the medical power handle including the cable assembly have a through hole in the cable mounting sleeve of the cable assembly. A seal is installed in the through hole, and a first fastener is fitted onto the cable passing through the through hole. The first fastener is connected to the cable mounting sleeve and can be operably moved along the central axis of the cable, allowing the first fastener to abut against or disengage from the seal. When the first fastener abuts against the seal, the seal can elastically deform to fit tightly against the outer circumferential surface of the cable, thereby sealing the gap formed between the outer circumferential surface of the cable and the inner wall of the through hole. This achieves a good sealing effect and solves the problem that in existing medical power handles, after long-term use, water vapor in high-temperature steam environments can easily seep into the handle through the cable at the tail end, damaging the internal electrical components and causing short circuits or malfunctions.
[0023] According to another aspect of this application, a medical power handle is provided, comprising:
[0024] The handle body has an internal cavity, and a through hole is provided at the proximal end of the handle body to connect the cavity and the outside of the handle body;
[0025] The cable is threaded through the through hole;
[0026] A sealing element is disposed within the through hole and sleeved on the cable;
[0027] A first fastener is sleeved on the outside of the cable and connected to the handle body. The first fastener is operable to move along the central axis of the cable to directly or indirectly abut against or detach from the seal.
[0028] When the first fastener directly or indirectly abuts against the seal, the seal undergoes elastic deformation to seal the gap formed between the outer peripheral surface of the cable and the inner wall of the through hole.
[0029] In one embodiment, the medical power handle further includes a thrust member disposed in the through hole, the first fastener indirectly abutting against the seal through the thrust member, one end of the thrust member abutting against the first fastener along the axial direction of the cable, and the other end being provided with a pushing portion;
[0030] When the first fastener indirectly abuts against the seal via the thrust member, the pushing portion converts part of the axial force applied by the first fastener into a radial force on the seal, so that the seal makes sealing contact with the outer peripheral surface of the cable; and / or, the first fastener is threadedly connected to the handle body.
[0031] In one embodiment, the through hole is provided with an axial limiting stepped surface. When the first fastener directly or indirectly abuts against the seal, one end of the seal along its own axial direction abuts against the limiting stepped surface, and the other end abuts against the first fastener.
[0032] Alternatively, the through hole includes a tapered hole, the sealing element is disposed in the tapered hole, the tapered hole has a large end and a small end, and the first fastener and the sealing element are arranged sequentially along the direction from the large end to the small end.
[0033] The aforementioned medical powered handpiece has a through hole in its main body, within which a sealing element is installed. A first fastener is fitted onto a cable passing through the through hole. The first fastener is connected to the main body and can be operably moved along the central axis of the cable, allowing it to abut against or detach from the sealing element. When the first fastener abuts against the sealing element, the sealing element elastically deforms to fit tightly against the outer circumference of the cable, thereby sealing the gap between the outer circumference of the cable and the inner wall of the through hole. This effectively achieves a sealing effect and solves the problem in existing medical powered handpieces where, after prolonged use, water vapor in high-temperature steam environments easily seeps into the handpiece through the cable at the tail end, damaging the internal electrical components and causing short circuits or malfunctions. Attached Figure Description
[0034] Figure 1 This is a schematic diagram of the appearance of a medical power handle provided in one embodiment of this application.
[0035] Figure 2 for Figure 1 Sectional view along the AA direction.
[0036] Figure 3 for Figure 2 Enlarged schematic diagram of region B in the middle.
[0037] Figure 4 A partial structural cross-sectional view of a medical power handle provided in another embodiment of this application.
[0038] Explanation of reference numerals in the attached figures:
[0039] 10. Handle; 100. Handle housing; 101. Mounting port; 200. Cable fixing assembly; 210. Cable mounting sleeve; 211. Through hole; 212. Axial limiting stepped surface; 213. Sealing groove; 214. Stepped surface; 220. Cable; 230. Seal; 240. First fastener; 250. Thrusting component; 251. Pushing part; 252. Receiving space; 300. Power assembly; 400. Sealing ring; 500. Second fastener; 600. Handle body; 601. Receiving cavity. Detailed Implementation
[0040] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0041] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.
[0042] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0043] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0044] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0045] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0046] This application provides a cable fixing assembly and a medical power handle. The medical power handle is used to connect a cutting tool to perform high-speed planing, grinding, or other cutting operations on diseased bone tissue during surgical bone or soft tissue resection. The cable fixing assembly is used to transmit signals and current in the medical power handle so that the power component in the medical power handle used to connect the cutting tool can output power to drive the cutting tool.
[0047] The structure of the medical power handle provided in this application will be described below using the example of a joint planer handle used for planing soft tissues of joints. It is understood that the cable fixing assembly can also be used in grinding handles, milling handles, or other power handles, and is not limited to joint planer handles; therefore, it is not limited here.
[0048] See Figure 1 and Figure 2 , Figure 1 A schematic diagram of the appearance of a medical power handle according to one embodiment of this application is shown. Figure 2 for Figure 1A cross-sectional view along the AA direction shows a medical power handle (hereinafter referred to as handle 10) provided in an embodiment of this application, including a handle housing 100, a cable fixing assembly 200, and a power assembly 300. The power assembly 300 is disposed inside the handle housing 100 and is used to connect a cutting tool and drive the cutting tool to perform cutting operations such as planing or grinding. The two opposite ends of the handle housing 100 are defined as the proximal end (i.e., the end of the handle 10 close to the operator when the operator holds it) and the distal end (i.e., the end of the handle 10 away from the operator when the operator holds it). The proximal end of the handle housing 100 has an installation port 101 that communicates with its own internal cavity. The cable fixing assembly 200 passes through the installation port 101 and seals the installation port 101. The end of the cable fixing assembly 200 inserted into the handle housing 100 is electrically connected to the power assembly 300, and the end exposed outside the handle housing 100 is used to connect to the host of the medical power device so that the host can supply power to the power assembly 300.
[0049] As described in the background section, after use, the handle 10 needs to be steam-cleaned and sterilized in a high-temperature, high-pressure, and sterilization environment for future use. Therefore, to prevent water vapor in the high-temperature steam environment from seeping into the handle 10 through the cable at the tail and damaging the electrical components inside the handle 10. In one specific embodiment provided in this application, the cable fixing assembly 200 includes a cable mounting sleeve 210, a seal 230, and a first fastener 240. The cable mounting sleeve 210 is inserted into the mounting port 101 to seal and connect to the proximal end of the handle housing 100. The cable mounting sleeve 210 has a through hole 211. When the cable mounting sleeve 210 is sealed and connected to the handle housing 100, the through hole 211 connects the internal cavity of the handle housing 100 to the external environment. The through hole 211 is used for the cable 220 to pass through. The seal 230 is disposed in the through hole 211 and sleeved on the cable 220. The first fastener 240 is also sleeved on the cable 220 and connected to the cable mounting sleeve 210. It is operably movable along the central axis of the cable 220 to directly or indirectly abut or disengage from the seal 230.
[0050] The seal 230 is made of an elastic material and can undergo elastic deformation under external force. When the first fastener 240 directly or indirectly abuts against the seal 230, the seal 230 undergoes elastic deformation, thereby tightly adhering to the outer circumference of the cable 220 and sealing the gap formed between the outer circumference of the cable 220 and the inner wall of the through hole 211. This achieves a good sealing effect and solves the problem that after long-term use, water vapor in a high-temperature steam environment can easily seep into the interior of the handle 10 through the cable 220 at the tail of the handle 10, damaging the electrical components inside the handle 10 and causing short circuits or malfunctions.
[0051] Alternatively, the first fastener 240 is threadedly connected to the cable mounting sleeve 210, that is, the outer circumferential surface of the first fastener 240 is provided with an external thread, and the inner circumferential surface of the cable mounting sleeve 210 is provided with an internal thread that matches the external thread of the first fastener 240. In this way, the operator can move the first fastener 240 along the axial direction of the cable 220 and stop it at any position on the cable mounting sleeve 210 along the axial direction of the cable 220 simply by rotating the first fastener 240, which facilitates the operator's operation.
[0052] Of course, the connection method between the first fastener 240 and the cable mounting sleeve 210 is not limited to a threaded connection. As long as the first fastener 240 can move along the axial direction of the cable 220 and stop at any position on the cable mounting sleeve 210 along the axial direction of the cable 220, it is acceptable.
[0053] In a preferred embodiment, a thrust member 250 is further provided within the through hole 211, through which the first fastener 240 indirectly abuts against the seal 230. Specifically, the thrust member 250 is located between the seal 230 and the first fastener 240 in the axial direction of the cable 220. One end of the thrust member 250 abuts against the first fastener 240 along the axial direction of the cable 220, and the other end is provided with a pushing portion 251. The purpose of providing the thrust member 250 is that when the first fastener 240 indirectly abuts against the seal 230 through the thrust member 250, the pushing portion 251 of the thrust member 250 can convert part of the axial force applied to it by the first fastener 240 into a radial force on the seal 230, so that the seal 230 can generate a large expansion deformation along its own radial direction, thereby enabling the seal 230 to have a better sealing contact with the outer peripheral surface of the cable 220.
[0054] For example, in one specific implementation, such as Figure 3 As shown, the end of the pushing part 251 facing the seal 230 has an inclined surface that is axially inclined relative to the through hole 211. The inclined surface and the outer wall of the cable 220 form a receiving space 252. The diameter of the receiving space 252 gradually decreases from the direction of the seal 230 toward the thrust member 250, making the pushing part 251 conical. When the first fastener 240 indirectly abuts against the seal 230, the pushing part 251 can be inserted between the outer wall of the seal 230 and the inner wall of the through hole 211. The inclined surface pushes the seal 230, and a circumferentially inclined pushing force relative to the through hole 211 is applied to the seal 230. This pushing force can be decomposed into axial and radial components along the through hole 211, so that the seal 230 can produce a large elastic deformation and be partially located in the aforementioned sealing space.
[0055] It should be noted that in other embodiments, the end face of the pushing part 251 facing the seal 230 along the axial direction of the through hole 211 can also be a plane or a surface of other shapes. Furthermore, the pushing member 250 may not be provided, and the first fastener 240 may directly abut against the seal 230. There is no limitation on this, but providing the pushing member 250 and designing the pushing part 251 of the pushing member 250 as conical is obviously more conducive to enhancing the sealing effect of the seal 230.
[0056] Furthermore, based on the above embodiment, an axial limiting stepped surface 212 is provided in the through hole 211. The axial limiting stepped surface 212 faces the seal 230 along the axial direction of the through hole 211. When the first fastener 240 directly or indirectly abuts against the seal 230, one end of the seal 230 along its own axial direction abuts against the limiting stepped surface, and the other end abuts against the first fastener 240.
[0057] Thus, due to the obstruction of the limiting stepped surface, even if the seal 230 is subjected to the pushing force applied by the first fastener 240, the seal 230 can be fixed in the through hole 211. Furthermore, since one end of the seal 230 along its own axial direction abuts against the limiting stepped surface, the end of the seal 230 closer to and away from the first fastener 240 can be subjected to the abutting force of the limiting stepped surface, allowing the seal 230 to undergo greater deformation, thereby enabling it to fit more tightly against the outer peripheral surface of the cable 220.
[0058] In another optional embodiment, the through hole 211 includes a tapered hole, and the seal 230 is disposed within the tapered hole. The tapered hole has a larger diameter at one end and a smaller diameter at the other end. The first fastener 240, the thrust member 250, and the seal 230 are arranged sequentially from the larger end to the smaller end. Thus, since the space of the tapered hole gradually decreases in the direction from the first fastener 240 to the seal 230, part of the axial force applied by the first fastener 240 can be converted into a radial force on the seal 230, causing the seal 230 to deform more significantly and thus better fit tightly against the outer peripheral surface of the cable 220.
[0059] Furthermore, see Figure 2To ensure a good seal between the cable mounting sleeve 210 of the cable fixing assembly 200 and the mounting opening 101 of the handle housing 100, the handle 10 also includes a sealing ring 400. The sealing ring 400 is disposed between the outer wall of the cable mounting sleeve 210 and the inner wall of the handle housing 100 to seal the gap between the cable mounting sleeve 210 and the handle housing 100. In the embodiment shown in the figure, the outer wall of the cable mounting sleeve 210 has a sealing groove 213 surrounding its own central axis. The sealing ring 400 is embedded in the sealing groove 213, and the difference between the outer diameter and the inner diameter of the sealing ring 400 is greater than the radial dimension of the sealing groove 213 on the cable mounting sleeve 210. This allows the sealing ring 400 to fit tightly against the inner wall of the handle housing 100 when the cable mounting sleeve 210 is inserted into the mounting opening 101 of the handle housing 100, thereby sealing the gap between the outer wall of the cable mounting sleeve 210 and the inner wall of the handle housing 100, achieving the effect of sealing the mounting opening 101.
[0060] It is understood that the sealing groove 213 can also be formed on the inner wall of the handle housing 100, or the outer wall of the cable mounting sleeve 210 and the inner wall of the handle housing 100 can both be provided with mutually aligned sealing grooves 213. In the above embodiments, the sealing ring 400 can be placed between the outer wall of the cable mounting sleeve 210 and the inner wall of the handle housing 100, so that the sealing ring 400 seals the mounting port 101 of the handle housing 100.
[0061] As an improvement to the above embodiment, the handle 10 further includes a second fastener 500 sleeved on the cable mounting sleeve 210, which is similar in structure to the first fastener 240 connecting the cable mounting sleeve 210. The second fastener 500 is threadedly connected to the handle housing 100, that is, the outer peripheral surface of the second fastener 500 is provided with an external thread, and the inner peripheral surface of the handle housing 100 is provided with an internal thread that matches the external thread of the second fastener 500. Furthermore, the outer peripheral surface of the cable mounting sleeve 210 has a stepped surface 214 facing the second fastener 500, and the second fastener 500 can be operably moved along the central axis of the cable mounting sleeve 210 (i.e., the central axis of the handle housing 100) to abut against or disengage from the stepped surface 214.
[0062] Thus, the operator can move the second fastener 500 along the axial direction of the cable 220 and stop it at any position on the cable mounting sleeve 210 along the axial direction of the cable 220 simply by rotating the second fastener 500. When it stops at the maximum stroke position near the step surface 214, the second fastener 500 abuts against the step surface 214, so that the cable mounting sleeve 210 is blocked by the second fastener 500 and will not fall out of the mounting opening 101. In most cases, the sealing ring 400 is made of elastic material. By making the second fastener 500 abut against the step surface 214, an axial force is applied to the step surface 214 on the cable mounting sleeve 210, so that the cable mounting sleeve 210 can push the sealing ring 400. The sealing ring 400 is squeezed by the groove wall of the sealing groove 213 and produces elastic deformation, thereby better sealing the gap between the outer wall of the cable mounting sleeve 210 and the inner wall of the handle housing 100.
[0063] In addition, other embodiments of this application also provide a medical power handle, such as... Figure 4 As shown, in this embodiment, the medical power handle includes a handle body 600, a cable 220, a seal 230, and a first fastener 240. The handle body 600 has an internal cavity 601. A through hole 211 is provided at the proximal end of the handle body 600 (i.e., the end of the handle 10 closest to the operator when the operator holds it), connecting the cavity 601 and the outside of the handle body 600. The cable 220 passes through the through hole 211. The seal 230 is disposed within the through hole 211 and sleeved on the cable 220. The first fastener... The first fastener 240 is sleeved on the outside of the cable 220 and connected to the handle body 600. The first fastener 240 is sleeved on the outside of the cable 220 and connected to the handle body 600. The first fastener 240 is operable to move along the central axis of the cable 220 to directly or indirectly abut against or disengage from the seal 230. When the first fastener 240 directly or indirectly abuts against the seal 230, the seal 230 undergoes elastic deformation to seal the gap formed between the outer peripheral surface of the cable 220 and the inner wall of the through hole 211.
[0064] As can be seen, compared with the embodiments described above, the difference is that the handle body 600 of this embodiment can be a single structure or a structure including the handle shell 100 and the cable mounting sleeve 210. The through hole 211 is opened on the handle body 600, and is not limited to being opened on a certain component. Other structures are basically the same as those described in the above embodiments. For example, a thrust member 250 can also be provided in the through hole 211, and a pushing part 251 is also provided at one end of the thrust member 250 along its own axial direction. The first fastener 240 is threadedly connected to the handle body 600. An axial limiting stepped surface 212 is provided in the through hole 211, or the through hole 211 includes a tapered hole, etc. Since the specific connection relationship and technical effect have been described in the embodiments described above, they will not be repeated here.
[0065] Finally, it should be noted that the technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0066] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A cable fixing assembly for routing a cable, characterized by The cable fixing assembly comprises: a cable mounting sleeve for sealingly connecting to a proximal end of the handle shell, the cable mounting sleeve being provided with a through hole for passing the cable therethrough, the through hole being in communication with the internal cavity of the handle shell and the external environment when the cable mounting sleeve is sealingly connected to the handle shell; a sealing member arranged in the through hole and sleeved on the cable; a first fastener sleeved on the cable and connected with the cable mounting sleeve, the first fastener being operable to move along the central axis of the cable to abut against or be separated from the sealing member; when the first fastener directly or indirectly abuts against the sealing member, the sealing member is elastically deformed to block the gap formed between the outer circumferential surface of the cable and the inner wall of the through hole.
2. The cable securing assembly of claim 1, wherein, The through hole is further provided with a thrust member, the first fastener indirectly abuts against the sealing member through the thrust member, one end of the thrust member abuts against the first fastener along the axial direction of the cable, and the other end is provided with a pushing portion; when the first fastener indirectly abuts against the sealing member through the thrust member, the pushing portion converts part of the axial force applied by the first fastener into a radial force on the sealing member, so that the sealing member is radially expanded and sealingly contacts the outer circumferential surface of the cable.
3. The cable securing assembly of claim 2, wherein, The pushing portion has an inclined surface inclined relative to the axial direction of the through hole, so that when the first fastener indirectly abuts against the sealing member, the pushing portion is inserted between the outer wall of the sealing member and the inner wall of the through hole to push the sealing member to be elastically deformed and partially located in the accommodation space formed by the inclined surface and the outer wall of the cable.
4. The cable securing assembly of claim 1, wherein, The first fastener is threadedly connected with the cable mounting sleeve.
5. The cable securing assembly of claim 1, wherein, The through hole is provided with an axial limiting stepped surface, when the first fastener directly or indirectly abuts against the sealing member, one end of the sealing member abuts against the limiting stepped surface along the axial direction of the sealing member, and the other end abuts against the first fastener; Alternatively, the through hole comprises a tapered hole, the sealing member is arranged in the tapered hole, the tapered hole has a large end and a small end, and the first fastener and the sealing member are arranged in sequence along the direction from the large end to the small end.
6. A medical powered handle characterized by, The medical power handle comprises: a handle shell, the proximal end of the handle shell having a mounting port in communication with the internal cavity thereof; a cable fixing assembly, the cable fixing assembly being the cable fixing assembly according to any one of claims 1-5, the cable mounting sleeve of the cable fixing assembly being inserted into the mounting port; a cable, the cable being arranged in the through hole; a sealing ring arranged between the outer wall of the cable mounting sleeve and the inner wall of the handle shell to block the gap between the cable mounting sleeve and the handle shell.
7. The medical powered handle of claim 6, wherein, The handle further comprises a second fastener sleeved on the cable mounting sleeve, the second fastener being threadedly connected with the handle shell, the outer circumferential surface of the cable mounting sleeve having a stepped surface facing the second fastener, and the second fastener being movable along the central axis of the cable mounting sleeve to abut against or be separated from the stepped surface.
8. A medical powered handle characterized by, It comprises: The handle body has a containing cavity inside, and a through hole is formed in the proximal end of the handle body and communicates with the containing cavity and the outside of the handle body; A cable is arranged in the through hole; A sealing element is arranged in the through hole and sleeved on the cable; A first fastener is sleeved on the outside of the cable and connected with the handle body, and the first fastener is operable to move along the central axis of the cable to abut against or be separated from the sealing element directly or indirectly; When the first fastener directly or indirectly abuts against the sealing element, the sealing element is elastically deformed to block the gap between the outer circumferential surface of the cable and the inner wall of the through hole.
9. The medical powered handle of claim 8, wherein, The medical power handle further comprises a pushing element arranged in the through hole, the first fastener indirectly abuts against the sealing element through the pushing element, one end of the pushing element abuts against the first fastener along the axial direction of the cable, and the other end is provided with a pushing part; When the first fastener indirectly abuts against the sealing element through the pushing element, the pushing part converts part of the axial force applied by the first fastener into a radial force on the sealing element to make the sealing element in sealing contact with the outer circumferential surface of the cable; and / or, the first fastener is threadedly connected with the handle body.
10. The medical powered handle of claim 8, wherein, An axial limiting stepped surface is arranged in the through hole, and when the first fastener directly or indirectly abuts against the sealing element, one end of the sealing element abuts against the limiting stepped surface along the axial direction, and the other end abuts against the first fastener; Alternatively, the through hole comprises a tapered hole, the sealing element is arranged in the tapered hole, the tapered hole has a large end and a small end, and the first fastener and the sealing element are arranged in sequence along the direction from the large end to the small end.