Motor module, medical handle and operation power device

Abstract

The utility model provides a motor module, medical handle and operation power plant belongs to electric operation equipment technical field, including drive motor and output tube, drive motor includes motor casing, rotor and inner tube, rotor is rotatablely provided in motor casing, inner tube is coaxially provided in rotor and rotates along with rotor; the output pipe is fixedly arranged relative to the motor shell, the rear end of the output pipe is used for being connected with an external pipeline, and the front end of the output pipe is directly communicated with the inner pipe in a sealed mode. Materials such as focus tissues and flushing waste liquid in the inner tube of the motor can directly enter the output tube from the inner tube and then are discharged from the output tube. And no additional switching structure is arranged between the inner tube and the output tube, so that the structure of the medical handle is simplified, and the cost of an operation power device is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric surgical equipment, and particularly relates to a motor module, a medical handle and a surgical power device. Background Art

[0002] The shaving handle is widely used in minimally invasive surgeries. During the surgery, by connecting with a compatible shaving tool or a tool with a grinding drill, the power provided by the driving motor inside the handle is transmitted to the tool to achieve tissue shaving or grinding. At the same time, in order to discharge the cut tissue and waste liquid, the tool is usually provided with a hollow channel, and the inside of the shaving handle is also provided with a hollow channel. The channels of the two are connected, and the tissue and waste liquid can be discharged under the action of negative pressure.

[0003] In most of the existing shaving handles, the channel inside the handle is usually arranged beside the driving motor, and is arranged in the housing by being offset in the axial direction of the driving motor, which will lead to a complex internal structure of the handle and a relatively large cross-sectional size of the handle; in some shaving handles, a driving motor with a hollow channel is used to discharge the tissue and waste liquid into the chamber at the tail of the housing, and then discharged from the chamber outside the housing. For this purpose, parts need to be arranged in the housing to form this chamber, and the structure of this shaving handle is relatively complex and the cost is relatively high. Summary of the Utility Model

[0004] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide a motor module, a medical handle and a surgical power device, which are used to solve the problems such as the complex internal channel structure of the surgical power device in the prior art.

[0005] To achieve the above purpose and other related purposes, the present utility model provides a motor module, including:

[0006] A driving motor, the driving motor includes a motor housing and an inner tube rotatably arranged inside the motor housing;

[0007] An output tube, the output tube is fixedly arranged relative to the motor housing, the rear end of the output tube is used for connecting with an external pipeline, and the front end of the output tube is inserted and sealed with the inner tube.

[0008] Optionally, the front end of the output tube has a docking hole communicating with the inside of the output tube, the rear end of the inner tube is inserted into the docking hole, and there is a rotational clearance between the rotational contour of the rear end of the inner tube and the inner wall of the docking hole.

[0009] Optionally, it further includes a sealing ring, at least part of the sealing ring is located in the rotational clearance between the outer wall of the inner tube and the inner wall of the docking hole, and the sealing ring seals the rotational clearance.

[0010] Optionally, a sealing cavity communicating with the rotation gap is formed between the front end face of the output pipe and the drive motor, and the sealing ring is partially disposed in the sealing cavity.

[0011] Optionally, an installation hole coaxial with the axial direction of the drive motor is provided at one end of the drive motor close to the output pipe, and the front end of the output pipe is connected in the installation hole.

[0012] Wherein, the inner wall of the installation hole is provided with threads, and the front end of the output pipe is in threaded fit with the installation hole; and / or, the inner wall of the butt joint hole, the inner wall of the installation hole and the outer wall of the inner pipe jointly enclose a sealing space including the sealing cavity and the rotation gap, and the sealing ring is disposed in the sealing space.

[0013] Optionally, the output pipe has a main channel communicating with the butt joint hole, and the inner diameter of the main channel is greater than or equal to the inner diameter of the inner pipe; and / or, the outer diameter of the inner pipe is greater than the inner diameter of the main channel.

[0014] Optionally, the butt joint hole at least includes a first hole section and a second hole section. The first hole section, the second hole section and the main channel are sequentially communicated from front to back. The inner diameter of the first hole section is greater than the inner diameter of the second hole section, and the inner diameter of the second hole section is greater than the inner diameter of the first hole section. The rear end of the inner pipe extends into the second hole section, and the sealing ring is at least partially disposed between the outer wall of the inner pipe and the inner wall of the first hole section.

[0015] Optionally, the output pipe and the inner pipe are coaxially arranged; and / or, the external pipeline is a flexible pipe, and an anti-disconnection structure for connecting with the flexible pipe is provided at the rear end of the output pipe.

[0016] The present utility model further provides a medical handle, which is characterized in that it includes a handle housing, an output pipe and the motor module as described in any one of the above, there is an installation cavity in the handle housing, the drive motor is fixedly arranged in the installation cavity, and the rear end of the output pipe penetrates out of the handle housing.

[0017] The present utility model further provides a medical handle, including:

[0018] A handle housing having an installation cavity therein;

[0019] A drive motor, the drive motor includes a motor housing and an inner pipe rotatably arranged in the motor housing, and the motor housing is relatively fixed in the installation cavity;

[0020] An output pipe, which is fixedly arranged relative to the handle housing, and the front end of the output pipe is directly and sealingly communicated with the inner pipe. The rear end of the output pipe is used for connecting with an external pipeline and extends out of the handle housing.

[0021] The present utility model also provides a surgical power device, which includes the above-mentioned medical handle and a tool assembly adapted to the medical handle. The tool assembly is detachably connected to the medical handle.

[0022] As described above, a motor module, a medical handle and a surgical power device of the present utility model have the following beneficial effects: Since the rear end of the output pipe is used for connecting with an external pipeline and the front end of the output pipe is directly and sealingly communicated with the inner pipe, substances such as lesion tissues and flushing waste liquid in the inner pipe of the driving motor can directly enter the output pipe from the inner pipe and then be discharged through the output pipe. There is no additional transfer structure between the inner pipe and the output pipe, which is beneficial to the simplification of the structure of the medical handle and the reduction of costs. Description of the Drawings

[0023] Figure 1 It is a schematic cross-sectional structure diagram of the surgical power device in the embodiment of the present utility model;

[0024] Figure 2 It is a schematic cross-sectional structure diagram of the connection part between the inner pipe and the output pipe in the embodiment of the present utility model;

[0025] Figure 3 It is a partially enlarged schematic cross-sectional structure diagram of the connection part between the inner pipe and the output pipe in the embodiment of the present utility model;

[0026] Figure 4 It is a schematic cross-sectional structure diagram of the output pipe in the embodiment of the present utility model;

[0027] Figure 5 It is a schematic structure diagram of the sealing cavity in the embodiment of the present utility model;

[0028] Figure 6 It is a schematic structure diagram of the mounting hole in the embodiment of the present utility model;

[0029] Figure 7 It is a schematic structure diagram of the front end of the output pipe in the embodiment of the present utility model.

[0030] Description of the Reference Numerals:

[0031] Sealing ring 1, Rotating gap 2, Sealing cavity 3;

[0032] Motor module 10, Inner pipe 11, Driving motor 12, Mounting hole 13;

[0033] Output pipe 20, Main channel 21, Docking hole 22, Anti-drop barb 23, First hole section 24, Second hole section 25;

[0034] Tool assembly 30. Detailed implementation

[0035] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0036] It should be noted that in the description of the following embodiments, the orientation term "front" refers to the orientation of the instrument or component away from the operator, and the orientation term "rear" refers to the orientation of the instrument or component close to the operator.

[0037] Please refer to Figures 1 to 7 , for achieving the above and other related purposes, this embodiment provides a motor module 10, including a drive motor 12 and an output pipe 20. The drive motor 12 includes a motor housing, a rotor and an inner pipe 11. The rotor is rotatably arranged in the housing, and the inner pipe 11 is coaxially arranged in the rotor and rotates with the rotor. The output pipe 20 is fixedly arranged relative to the motor housing. The rear end of the output pipe 20 is used for connecting with an external pipeline, and the front end of the output pipe 20 is inserted into and sealedly communicated with the inner pipe 11.

[0038] Since the rear end of the output pipe 20 is used for connecting with an external pipeline, and the front end of the output pipe 20 is directly and sealedly communicated with the inner pipe 11, thus substances such as diseased tissue and flushing waste liquid in the inner pipe 11 of the drive motor 12 can directly enter the output pipe 20 from the inner pipe 11 and then be discharged from the output pipe 20. There is no additional transfer structure between the inner pipe 11 and the output pipe 20, which is beneficial to the simplification of the medical handle structure and cost reduction.

[0039] Specifically, as Figure 4 shown, in this embodiment, the front end of the output pipe 20 has a docking hole 22 communicated with the inside of the output pipe 20. The rear end of the inner pipe 11 is inserted into the docking hole 22, and there is a gap between the rotational contour of the rear end of the inner pipe 11 and the docking hole 22, so that the inner pipe 11 can rotate smoothly in the docking hole 22.

[0040] In the above description, "there is a rotational gap between the rotational contour of the rear end of the inner pipe 11 and the docking hole 22" means that the inner pipe 11 does not contact the inner wall of the docking hole 22 during rotation, so as to avoid interference between the inner pipe 11 and the inner wall of the docking hole 22 when the inner pipe 11 rotates relative to the output pipe 20, making the rotation between the inner pipe 11 and the output pipe 20 flexible.

[0041] As Figure 3As shown in the figure, in this embodiment, the motor module 10 further includes a sealing ring 1. The sealing ring 1 is at least partially located in the rotational gap 2 between the outer wall of the inner tube 11 and the inner wall of the docking hole 22. The sealing ring 1 seals the rotational gap 2, playing a sealing role to prevent substances such as waste liquid in the inner tube 11 from flowing out through the rotational gap 2 between the inner tube 11 and the docking hole 22.

[0042] In this embodiment, the sealing ring 1 is annular and sleeved on the inner tube 11. The sealing ring 1 has an annular first sealing portion which is arranged in the rotational gap 2. The inner surface of the first sealing portion is in sealing contact with the outer surface of the inner tube 11, and the outer surface of the first sealing portion is in sealing contact with the inner surface of the docking hole 22, thereby sealing the rotational gap 2.

[0043] As Figures 4 to 6 shown in the figure, in this embodiment, a sealing cavity 3 communicating with the rotational gap 2 is formed between the front end face of the output pipe 20 and the driving motor 12. The sealing ring 1 is partially arranged in the sealing cavity 3. In this structure, the front end face of the output pipe 20 and the driving motor 12 jointly position the sealing ring 1 located in the sealing cavity 3, playing an axial limiting role on the sealing ring 1 arranged therein to prevent sealing failure caused by the displacement of the sealing ring 1.

[0044] Specifically, as Figure 6 shown in the figure, an installation hole 13 coaxial with the axis direction of the driving motor 12 is arranged on the end face of the driving motor 12 close to the output pipe 20. As Figure 5 shown in the figure, the front end of the output pipe 20 is connected in the installation hole 13, and the inner wall of the docking hole 22, the inner wall of the installation hole 13 and the outer wall of the inner tube 11 jointly enclose a sealing space including the sealing cavity 3 and the rotational gap 2. The sealing ring 1 is arranged in this sealing space. In this embodiment, a gap is formed between the end face of the output pipe 20 located in the installation hole 13 and the bottom of the installation hole 13. The sealing ring 1 has a second sealing portion which is a circular ring-shaped sheet sleeved on the inner tube 11. The second sealing portion is located in the gap between the end face of the output pipe 20 and the bottom of the installation hole 13. One side of the second sealing portion is in sealing contact with the bottom of the installation hole 13, and the other side of the second sealing portion is in sealing fit with the end face of the output pipe 20. The second sealing portion of the sealing ring 1 surrounds the inner tube 11 for one week, sealing the sealing cavity 3, and further forming a secondary seal for the rotational gap 2, increasing the sealing effect of the sealing ring 1 on the rotational gap 2.

[0045] In this embodiment, the inner wall of the installation hole 13 is provided with threads, and the front end of the output pipe 20 is in threaded fit with the installation hole 13. Of course, this application does not exclude that the output pipe is fixed in the installation hole 13 by welding, clamping or other means.

[0046] In this embodiment, the threaded connection facilitates the disassembly and assembly of the output pipe 20. The thread is arranged along the axial direction of the mounting hole 13. Through the thread, the size of the sealing cavity 3 in the axial direction of the driving motor 12 can be adjusted, and further the compression size of the part of the sealing ring 1 between the end face of the output pipe 20 and the bottom of the mounting hole 13 can be adjusted to ensure the sealing effect of the sealing ring 1.

[0047] In this embodiment, the output pipe 20 has a main channel 21 communicating with the docking hole 22. The inner diameter of the main channel 21 is greater than or equal to the inner diameter of the inner pipe 11, so as to prevent the tissue and waste liquid in the inner pipe 11 from being blocked due to the decrease of the inner diameter of the output pipe 20 after entering the output pipe 20 from the inner pipe 11.

[0048] In this embodiment, the outer diameter of the inner pipe 11 is greater than the inner diameter of the main channel 21. In this way, the size of the inner pipe is relatively large, which is beneficial to making the inner pipe have better mechanical properties and improving the service life of the inner pipe. Of course, this application does not exclude the case where the outer diameter of the inner pipe 11 is less than or equal to the inner diameter of the main channel 21.

[0049] As Figure 7 shown, in this embodiment, the docking hole 22 at least includes a first hole section 24 and a second hole section 25. The first hole section 24, the second hole section 25 and the main channel 21 are sequentially communicated from front to back. The inner diameter of the first hole section 24 is greater than that of the second hole section 25, and the inner diameter of the second hole section 25 is greater than that of the first hole section 24. The rear end of the inner pipe 11 extends into the second hole section 25, and the sealing ring 1 is at least partially arranged between the outer wall of the inner pipe 11 and the inner wall of the first hole section 24. With this structure, there is a sufficiently large gap between the inner wall of the first hole section 24 and the outer wall of the inner pipe 11 in the radial direction, the installation space of the sealing ring is larger, the selection range is wider, and the sealing performance can be improved by selecting a suitable sealing ring.

[0050] In some embodiments, only the front pipe section of the output pipe 20 is coaxially arranged with the inner pipe, and the pipe section of the output pipe 20 forming the main channel 21 is eccentrically arranged with the inner pipe 11. In this embodiment, the output pipe 20 and the inner pipe 11 are coaxially arranged to ensure the communication area between the inner pipe 11 and the output pipe 20. The discharged substances of the inner pipe 11 enter the output pipe 20 in all radial directions, and the radial dimensions change uniformly, and the flow velocities are the same or close, which is beneficial to keeping the output pipe 20 unobstructed.

[0051] The present utility model also provides a medical handle, which includes a handle housing, an output pipe 20 and the motor module 10 as described in any one of the above. There is an installation cavity in the handle housing, the driving motor 12 is fixedly arranged in the installation cavity, and the rear end of the output pipe 20 penetrates through the handle housing.

[0052] As Figure 2 and Figure 4As shown, in this embodiment, the rear end of the output pipe 20 is provided with an anti-slip structure for connecting with a hose. In some embodiments, the anti-slip structure is a clamp. In this embodiment, the anti-slip structure is an anti-slip barb 23. After an external pipeline such as a hose is connected to the rear end of the output pipe 20, the anti-slip barb 23 can reduce the probability of accidental detachment of the external pipeline.

[0053] The utility model also provides another medical handle (not shown), including a handle housing, a drive motor and an output tube, wherein the handle housing has an installation cavity; the drive motor includes a motor housing, a rotor and an inner tube, the motor housing is relatively fixed in the installation cavity, the rotor is rotatably arranged in the motor housing, and the inner tube is coaxially arranged in the rotor and rotates with the rotor; the output tube is fixed relative to the handle housing, and the front end of the output tube is sealed and plugged with the inner tube and communicated, and the rear end of the output tube is used to connect to an external pipeline and extend out of the handle housing. This kind of medical handle can also directly discharge tissue and waste liquid through the inner tube and the output tube. This kind of medical handle and Figure 1 The difference between the medical handle of the present invention and the medical handle of the present invention is that the output tube is fixedly arranged relative to the handle housing, rather than being arranged on the motor housing. In the actual implementation process, it is only necessary to arrange a structure for installing the output tube on the motor housing.

[0054] like Figure 1 As shown, the present embodiment also provides a surgical power device, including the above medical handle and a tool assembly 30 that can be adaptably connected to the medical handle. The surgical power device includes a housing, and the motor module 10 is arranged in the housing, and the housing protects the motor module 10. The tool assembly 30 includes an outer knife tube and an inner knife tube rotatably arranged in the outer knife tube, the outer knife tube is connected to the housing, and the rear end of the inner knife tube is transmission-connected and communicated with the front end of the inner tube 11. The tissue cut by the inner knife tube and the waste liquid after flushing enter the inner tube 11 through the inner knife tube, and then enter the output tube 20 from the inner tube 11, and are discharged through the output tube 20.

[0055] In summary, in the motor module, medical handle and surgical power device of the present embodiment, since the rear end of the output tube 20 is used to connect with the external pipeline, and the front end of the output tube 20 is directly connected with the inner tube 11 in a sealed manner, the lesion tissue, flushing waste liquid and the like in the inner tube 11 of the driving motor 12 can directly enter the output tube 20 from the inner tube 11 and then be discharged from the output tube 20. There is no additional transition structure between the inner tube 11 and the output tube 20, which is conducive to the simplification of the structure of the medical handle and the reduction of costs.

[0056] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not intended to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A motor module, characterized in that, Comprising: A drive motor, the drive motor including a motor housing and an inner tube rotatably disposed within the motor housing; An output tube, the output tube being fixedly disposed relative to the motor housing, a rear end of the output tube being adapted to be connected to an external pipeline, and a front end of the output tube being inserted and sealingly communicated with the inner tube.

2. The motor module according to claim 1, wherein The front end of the output tube has a docking hole communicated with the interior of the output tube, a rear end of the inner tube is inserted into the docking hole, and there is a rotational clearance between a rotational profile of the rear end of the inner tube and an inner wall of the docking hole.

3. The motor module according to claim 2, characterized in that, Further comprising a sealing ring, at least a part of the sealing ring being located in the rotational clearance between an outer wall of the inner tube and the inner wall of the docking hole, the sealing ring sealing the rotational clearance.

4. The motor module according to claim 3, characterized in that, A sealing cavity communicated with the rotational clearance is formed between a front end face of the output tube and the drive motor, and a part of the sealing ring is disposed in the sealing cavity.

5. The motor module according to claim 4, characterized in that: An installation hole coaxial with an axial direction of the drive motor is provided at one end of the drive motor close to the output tube, and a front end of the output tube is connected in the installation hole; Wherein, an inner wall of the installation hole is provided with threads, and a front end of the output tube is in threaded fit with the installation hole; and / or, an inner wall of the docking hole, an inner wall of the installation hole and an outer wall of the inner tube jointly enclose a sealing space including the sealing cavity and the rotational clearance, and the sealing ring is disposed in the sealing space.

6. The motor module according to claim 3, wherein: The output tube has a main channel communicated with the docking hole, an inner diameter of the main channel being greater than or equal to an inner diameter of the inner tube; and / or, an outer diameter of the inner tube is greater than the inner diameter of the main channel.

7. The motor module according to claim 6, characterized in that: The docking hole at least includes a first hole section and a second hole section, the first hole section, the second hole section and the main channel are communicated in sequence from front to back, an inner diameter of the first hole section is greater than an inner diameter of the second hole section, an inner diameter of the second hole section is greater than an inner diameter of the first hole section, a rear end of the inner tube extends into the second hole section, and at least a part of the sealing ring is disposed between an outer wall of the inner tube and an inner wall of the first hole section.

8. The motor module according to claim 1, characterized in that: The output tube and the inner tube are coaxially arranged; and / or, the external pipeline is a flexible tube, and an anti-disconnection structure for connecting with the flexible tube is provided at a rear end of the output tube.

9. A medical handle, characterized in that, Comprising a handle housing, an output tube and the motor module according to any one of claims 1 to 7, an installation cavity is provided within the handle housing, the drive motor is fixedly disposed within the installation cavity, and a rear end of the output tube passes through the handle housing.

10. A medical handle, characterized in that, Comprising: A handle housing, an installation cavity being provided within the handle housing; A drive motor, the drive motor including a motor housing and an inner tube rotatably disposed within the motor housing, the motor housing being relatively fixed within the installation cavity; An output tube, the output tube being fixedly disposed relative to the handle housing, and a front end of the output tube being sealingly inserted and communicated with the inner tube, a rear end of the output tube being adapted to be connected to an external pipeline and extending out of the handle housing.

11. A surgical power device, characterized in that, Comprising a medical handle as described in claim 9 or 10 and a tool assembly adapted to the medical handle, the tool assembly being detachably connected to the medical handle.

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