Medical planing device

Abstract

The utility model provides a medical planing device, and relates to the technical field of medical instruments. The cutter tube is driven to vibrate and rotate through the vibration device and the driving motor, suction is carried out while tissue cutting is carried out, the cutting efficiency is high, tissue adhesion is avoided, and the problem of jamming can be remarkably solved. The tool bit part, the vibration device and the driving motor are sequentially connected, vibration of the vibration device is transmitted to the tool bit part, and the vibration generated by the vibration device is prevented from damaging the driving motor. In addition, due to the combination of vibration and rotation, the cutting effect is improved, the rotation speed can be reduced, and therefore the risks of tissue damage, tool bit overheating and / or abrasion are reduced.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of medical instruments, in particular to a medical planer. Background Art

[0002] A planer is a medical device commonly used in existing medical treatment methods. Existing medical surgical planers are usually driven by a motor to rotate the cutter head or perform a reciprocating cutting motion.

[0003] Existing shavers are used in urology procedures for enucleation of benign prostatic hyperplasia and other types of surgeries. These shavers typically feature a double-layered blade head, with a hollow inner tube positioned within an outer tube. The outer tube's tip has an opening on the side. During use, the opening is aligned with the tissue to be cut. The inner tube, driven by a motor, rotates about its central axis. The motor drives the inner tube to rotate relative to the outer tube to cut the tissue, and a suction device removes the cut tissue from the inner tube. However, during the cutting process, tissue can easily enter the narrow gap between the inner and outer tubes, causing the inner tube to become stuck relative to the outer tube and unable to rotate. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a medical planer, which can improve the problem of the cutter head component being stuck.

[0005] In a first aspect, the utility model provides a medical shaver, comprising a handle, a drive motor, a vibration device, a blade component, and a suction device, wherein:

[0006] The handle has a shell, a side surface of the shell has a through hole, and the through hole is connected to the suction device;

[0007] The driving motor and the vibration device are arranged in the housing, and the driving motor is connected to the vibration device;

[0008] The cutter head component is mounted on the front end of the housing and connected to the vibration device. The cutter head component includes a cutter tube. The head end of the cutter tube has a cutting edge. The inside of the cutter tube has a suction channel communicating with the cutting edge, and the through hole is in communication with the suction channel.

[0009] The vibration device is used to drive the knife tube to vibrate, and the drive motor is used to drive the vibration device to rotate and then drive the knife tube to rotate.

[0010] Optionally, the knife tube is a single tube with a seal at the head end, the single tube is provided with the knife edge on the side of the sealed end, the tail end of the single tube is provided with a connecting structure, the connecting structure is connected to the vibration device, the vibration device is used to drive the single tube to vibrate, and the drive motor is used to drive the vibration device to rotate and thereby drive the single tube to rotate.

[0011] Optionally, the cutter head component further includes a cutter tube connector, which is at least partially located within the shell and sleeved on the cutter tube, and one end of the cutter tube connector close to the vibration device wraps around the connection between the connecting structure and the vibration device.

[0012] Optionally, the knife tube connector has a control section located outside the shell, and a slender handle is provided on the control section. The slender handle is used to control the knife tube connector to drive the knife tube to rotate in the shell, thereby changing the direction of the blade.

[0013] Optionally, the cutter head component also includes a knife tube locking piece, which is sleeved on the periphery of the knife tube connecting piece. The tail of the knife tube locking piece wraps the tail of the knife tube connecting piece and provides locking force. The tail end of the knife tube locking piece has a connecting part, and the connecting part is connected to the outer periphery of the vibration device.

[0014] Optionally, the knife tube includes an inner tube and an outer tube, the inner tube is arranged in the outer tube, the head end of the outer tube has an outer blade, the inner tube has the suction channel and an inner blade corresponding to the outer blade, the outer blade and the inner blade constitute the blade, the tail end of the inner tube extends out of the outer tube and is provided with a connecting structure, the connecting structure is connected to the vibration device, the vibration device is used to drive the inner tube and / or the outer tube to vibrate, and the drive motor is used to drive the vibration device to rotate and thereby drive the inner tube to rotate.

[0015] Optionally, the cutter head component further includes an outer tube connector and an inner tube connector, wherein the outer tube connector is at least partially located within the shell and sleeved on the outer tube, and the inner tube connector wraps the connection between the connecting structure and the vibration device.

[0016] Optionally, the outer tube connector has a control section located outside the shell, and a slender handle is provided on the control section. The slender handle is used to control the outer tube connector to drive the outer tube to rotate in the shell, thereby changing the direction of the blade of the outer tube.

[0017] Optionally, a key slot is provided on the shell, a locking slot is provided on the periphery of the vibration device, and the handle further includes a locking button, a latch and an elastic member. The locking button is installed in the key slot, the latch is provided below the locking button, and passes through the shell and is aligned with the locking slot on the vibration device. The elastic member is provided below the locking button to provide a rebound force to the locking button.

[0018] Optionally, the rotation speed of the blade tube is within the range of 50-400 rpm. If the blade tube is a single tube with a sealed end, the rotation speed of the single tube is within the range of 50-400 rpm; if the blade tube includes an inner tube and an outer tube, the rotation speed of the inner tube is within the range of 50-400 rpm.

[0019] Compared with the prior art, the utility model has the following advantages:

[0020] This utility model uses a vibration device and a drive motor to drive the blade tube to vibrate and rotate, cutting tissue while simultaneously extracting suction. This results in high cutting efficiency, prevents tissue adhesion, and significantly reduces the problem of sticking. The blade head assembly, vibration device, and drive motor are connected in sequence, transmitting the vibration of the vibration device to the blade head assembly, preventing the vibration generated by the vibration device from damaging the drive motor. Furthermore, because the combined vibration and rotation improve cutting efficiency, the rotation speed can be reduced, thereby reducing the risk of tissue damage, blade overheating, and / or wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are included to provide a further understanding of the present invention. They are incorporated into and constitute a part of the present invention. The accompanying drawings illustrate embodiments of the present invention and, together with the specification, serve to explain the principles of the present invention. In the accompanying drawings:

[0022] Figure 1 This is a structural diagram of a planing system provided by an embodiment of the utility model;

[0023] Figure 2 This is an exploded view of a planer provided by an embodiment of the utility model;

[0024] Figure 3A This is an exploded view of some components of a planer provided by an embodiment of the utility model;

[0025] Figure 3B This is an exploded view of some of the assembled components of a planer provided by an embodiment of the utility model;

[0026] Figure 4 This is a three-dimensional diagram of a blade tube of a planer provided by an embodiment of the utility model;

[0027] Figure 5 This is a cross-sectional view of a planer provided by an embodiment of the present utility model;

[0028] Figure 6 This is a cross-sectional view of a cutter head component provided by an embodiment of the present utility model;

[0029] Figure 7 This is an assembly diagram of another planer provided by an embodiment of the utility model;

[0030] Figure 8 This is a three-dimensional diagram of a blade tube of another planer provided by an embodiment of the utility model.

[0031] Figure 9 It is a cross-sectional view of another planer provided by an embodiment of the utility model.

[0032] In the picture:

[0033] 100. Planer;

[0034] 200, host;

[0035] 101, handle;

[0036] 1011, housing;

[0037] 1012, cavity;

[0038] 1013a, front seal;

[0039] 1013b, rear seal;

[0040] 1014. Open your mouth;

[0041] 1015, through hole;

[0042] 1016, key slot;

[0043] 1017, lock button;

[0044] 1018. latch;

[0045] 1019, elastic member;

[0046] 102. Drive motor;

[0047] 103. Vibration device;

[0048] 1031, output terminal;

[0049] 1032, locking groove;

[0050] 104. Cutting head component;

[0051] 1041, foreign control;

[0052] 1042, inner tube;

[0053] 1411, external blade;

[0054] 1421, inner blade;

[0055] 1412, first through hole;

[0056] 1422, second through hole;

[0057] 1423, suction channel;

[0058] 1424, connection structure;

[0059] 1042a, single tube;

[0060] 1421a, knife edge;

[0061] 1422a, through hole;

[0062] 1043, external pipe connector;

[0063] 1043a, knife tube connector;

[0064] 1431, slender handle;

[0065] 1044, inner tube connector;

[0066] 1045, knife barrel locking piece;

[0067] 1451, connecting part;

[0068] 1452, flange;

[0069] 1453, annular groove;

[0070] 1454, slotting;

[0071] 1046, cutter head front seal;

[0072] 1047, cutter head rear seal

[0073] 105. Suction device;

[0074] 106. Conductive ring. DETAILED DESCRIPTION

[0075] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments. Obviously, the drawings described below are merely examples or embodiments of the present invention. Those skilled in the art can apply the present invention to other similar scenarios based on these drawings without inventive effort. Unless otherwise apparent from the context or otherwise noted, the same reference numerals in the figures represent the same structure or operation.

[0076] As used herein, unless the context clearly indicates otherwise, the terms "a," "an," "an," and / or "the" are not intended to refer to the singular but may include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list; a method or apparatus may also include other steps or elements.

[0077] Unless otherwise specifically stated, the relative arrangement of the parts, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0078] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0079] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0080] In addition, although the terms used in this utility model are selected from commonly known and commonly used terms, some of the terms mentioned in this utility model specification may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description herein. In addition, it is required to understand this utility model not only by the actual terms used, but also by the meaning implied by each term.

[0081] It should be understood that when a component is referred to as being “on another component,” “connected to another component,” “coupled to another component,” or “contacting another component,” it can be directly on, connected to, coupled to, or contacting the other component, or intervening components may be present. In contrast, when a component is referred to as being “directly on another component,” “directly connected to,” “directly coupled to,” or “directly contacting” another component, there are no intervening components. Similarly, when a first component is referred to as being “electrically in contact with” or “electrically coupled to” a second component, an electrical path exists between the first and second components that allows current to flow. This electrical path may include capacitors, coupled inductors, and / or other components that allow current to flow, even without direct contact between the conductive components.

[0082] Figure 1 This is a schematic diagram of the structure of a planing system provided by an embodiment of the present utility model. Figure 1 As shown, the shaving system includes a shaving device 100 and a main unit 200, which is connected to the shaving device 100 via a cable. The shaving device 100 may include a handle 101, a blade component 104, a drive motor (not shown), a vibrating device (not shown), and a suction device (not shown). The blade component 102 includes a blade tube with a blade edge on the side of the head end, which enables tissue cutting. The drive motor and the vibrating device are located within the handle 101 and are interconnected. The vibrating device is connected to the blade component 102 to drive the blade component 102 to vibrate and transmit the rotation of the motor. The blade tube has a suction channel similar to the blade edge. The suction device is connected to the handle 101 and communicates with the suction channel to extract the cut tissue. The main unit 200 may include a vibration generator (such as an ultrasonic generator), a motor controller and other controllers, a power supply, and other components to provide power to the shaving device 100 and control the shaving process. The various embodiments of the present application will be described in more detail below with reference to the accompanying drawings.

[0083] Example 1

[0084] Please refer to Figure 2-5The planer 100 of this embodiment includes a handle 101, a drive motor 102, a vibration device 103, a cutter head component 104, and a suction device 105 (illustrated as a suction joint in the figure). The handle 101 has a housing 1011, and the cutter head component 104 is installed at the front end of the housing 1011. For example, the front end of the housing 1011 has an opening 1014, and the cutter head component 104 is installed at the front end of the housing 1011 through the opening 1014. The side of the housing 1011 has a through hole 1015 (refer to Figure 5 ), the through hole 1015 is connected to the suction device 105, and the suction device 105 may include a vacuum negative pressure device. The drive motor 102 and the vibration device 103 are arranged in the shell 1011, wherein the drive motor 102 is located at the rear of the shell 1011, and the vibration device 103 is located in the middle of the shell 1011. The drive motor 102 is connected to the vibration device 103, thereby driving the vibration device 103 to rotate. Furthermore, the drive motor 102 and the vibration device 103 are located on the same axis, reducing the volume of the entire planer 100. For example, the drive motor 102 and the vibration device 103 are connected using a contact or non-contact coupling, and when the motor shaft of the drive motor 102 rotates, the vibration device 103 is driven to rotate through the contact or non-contact coupling.

[0085] The vibration device 103 is connected to the cutter head component 104, more specifically, via its output terminal 1031. The rotational torque of the drive motor 102 is transmitted to the cutter head component 104 via the vibration device 103, and the vibration of the vibration device 103 itself is directly transmitted to the cutter head component 104, thereby controlling the corresponding components of the cutter head component 104 to both rotate and vibrate. The cutter head component 104, the vibration device 103, and the drive motor 102 are connected in sequence, that is, the cutter head component 104 and the drive motor 102 are connected to the two ends of the vibration device 103, respectively. This prevents the vibration generated by the vibration device 103 from damaging the drive motor 102.

[0086] The blade component 104 includes a blade tube with a blade edge on the side of the head end. In other embodiments, the blade edge can also be set at other positions of the blade tube. Figure 2 and Figure 4 The knife tube includes an outer tube 1041 and an inner tube 1042 disposed in the outer tube 1041, and there is a gap between the inner tube 1042 and the outer tube 1041. Figure 4 、 Figure 5The outer tube 1041 has an outer blade 1411 on the side of the head end, and a first through hole 1412 on the side of the tail end of the outer tube 1041. Similarly, the inner tube 1042 has an inner blade 1421 on the side of the head end, and a second through hole 1422 on the side of the tail end of the inner tube 1042. When the knife tube is assembled, the outer blade 1411 and the inner blade 1421 are aligned in the length direction of the knife tube, and the first through hole 1412 and the second through hole 1422 are aligned in the length direction of the knife tube. A suction channel 1423 is provided in the inner tube 1042, which is connected to the outer blade 1411 and the inner blade 1421, and is connected to the first through hole 1412 and the second through hole 1422. The tail end of the inner tube 1042 is provided with a connecting structure 1424, which is connected to the output end 1031 of the vibration device 103.

[0087] The housing 1011 of the handle 101 defines a cavity 1012 that communicates with the first and second through-holes 1412, 1422 of the blade member 104 and the through-hole 1015 of the housing 1011. A suction channel 1423 communicates with the cavity 1012 via the first and second through-holes 1412, 1422. When the shaver 100 is in operation, the outer blade 1411 of the outer tube 1041 is aligned with the tissue to be cut. The outer tube 1041 is then fixed stationary. The vibration device 103 and the drive motor 102 drive the inner tube 1042 and / or the outer tube to vibrate and rotate, thereby cutting the tissue. The cut tissue enters the suction channel 1423 through the outer and inner blades 1411, 1421, and is then extracted by the suction device 105 through the first and second through-holes 1412, 1422, the cavity 1012, and the through-hole 1015. The inventors of the present application have discovered that when the knife tube vibrates and rotates, the cutting effect is better, the tissue does not adhere, and it is not easy to get stuck between the inner and outer tubes.

[0088] In a variation, if the tail end of the inner tube 1042 extends sufficiently beyond the outer tube 1041, the through hole 1042 may be formed only at the corresponding position of the inner tube 1042. Figure 6 shown.

[0089] Furthermore, the inner and outer tubes are prone to sticking together when vibrating simultaneously. Therefore, in one embodiment, the outer tube 1041 and the inner tube 1042 are made of different materials to effectively prevent the inner and outer tubes from sticking together. For example, the outer tube 1041 and the inner tube 1042 are made of different metal materials.

[0090] In an embodiment of the present invention, the inner tube 1042 of the planer 100 can simultaneously rotate and vibrate while cutting tissue, thereby appropriately slowing the rotational speed of the inner tube 1042 without reducing cutting efficiency. For example, the rotational speed of the inner tube can be reduced from the 700-800 rpm currently used during surgery to 50-400 rpm, such as 50, 100, 200, or 400 rpm. This ensures cutting efficiency while avoiding excessive tissue temperature and improving patient comfort. In actual operation, the rotational speed can be determined within this range based on the size of the planed object. For larger objects, the rotational speed can be higher, while for smaller objects, the rotational speed can be lower.

[0091] In some embodiments, the cutting head assembly 104 further includes a cutting tube connector that connects the inner and outer tubes, and the cutting tube connector and the inner and outer tubes are plugged together. The cutting tube connector includes an outer tube connector 1043 that is at least partially located within the housing 1011 and sleeved on the outer tube 1041, facilitating the fixation of the outer tube 1041. Optionally, the outer tube connector 1044 includes a control section located outside the housing 1011, which is provided with a slender handle 1431. The slender handle 1431 is used to control the outer tube connector 1043 to drive the outer tube 1041 to rotate within the housing 1011, thereby changing the orientation of the outer blade 1411 on the outer tube 1041, facilitating the operation of the surgical staff.

[0092] The blade-barrel connector also includes an inner tube connector 1044 connected to the inner tube 1042. This connector is mounted outside the connection structure 1424 of the inner tube 1042 and covers the connection between the connection structure 1424 and the vibration device 103. This provides a more secure connection between the vibration device 103 and the inner tube 1042. When the vibration device 103 is connected to the outer tube 1041, a similar connection structure 1424 can be provided on the outer tube 1041.

[0093] Furthermore, the blade head component 104 also includes a blade barrel locking member 1045 for connecting the inner tube 1042 and the vibration device 103. The blade barrel locking member 1045 is sleeved around the periphery of the outer tube connector 1043 and the inner tube connector 1044. The rear end of the blade barrel locking member 1045 wraps around the rear end of the inner tube connector 1044 and provides a locking force. The rear end of the blade barrel locking member 1045 has a connecting portion 1451 that connects to the outer periphery of the vibration device 103. For example, the output end 1031 of the vibration device 103 is provided with an external thread, and the connecting portion 1451 of the blade barrel locking member 1045 is an internally threaded hole that can be screwed onto the external thread of the vibration device 103, allowing the two to be tightened. In addition, the front end of the blade barrel locking member 1045 has a flange 1452 that wraps around the front end of the housing 1011, and the front end of the blade barrel locking member 1045 abuts against the step formed at the control section of the outer tube connector 1043.

[0094] Furthermore, the blade head component 104 may also include a blade head front seal 1046 that is sleeved around the outer tube connector 1043. The blade head front seal 1046 is located between the blade tube locking member 1045 and the outer tube connector 1043 to form a seal. The blade head front seal 1046 and the outer tube connector 1043 may form a concave-convex fit to improve the sealing performance.

[0095] Furthermore, the blade head component 104 may also include a blade head rear seal 1047 that is sleeved around the outer periphery of the rear end of the inner tube connector 1045. An annular groove 1453 is provided on the inner side of the rear end of the blade barrel locking member 1045 to accommodate the blade head rear seal 1047. The blade head rear seal 1047 is disposed within the annular groove 1453 and protrudes out of the annular groove 1453. The blade head rear seal 1047 is positioned between the blade barrel locking member 1045 and the inner tube connector 1044 to form a seal. Optionally, the rear end of the blade barrel locking member 1045 is further provided with a stepped hole (not shown), and the inner tube connector 1045 is provided with a step (not shown) that can engage with the stepped hole.

[0096] The blade barrel locking member 1045 forms an annular first cavity with the blade barrel at positions corresponding to the first through-hole 1412 and the second through-hole 1422. For example, the housing 1011 of the handle 101 also includes a front seal 1013a and a rear seal 1013b. These seals seal the blade head 104, forming an annular second cavity. The blade barrel locking member 1045 has a plurality of slots 1454 that connect the first cavity and the second cavity, together forming cavity 1012.

[0097] In some embodiments, the handle 101 is further provided with a fixing member for securing the vibration device 103. For example, the handle 101 further includes a locking button 1017, a latch 1018, and an elastic member 1019. The housing 1011 is provided with a button slot 1016, and the outer periphery of the vibration device 103 is provided with a locking slot 1032. The locking button 1017 is mounted within the button slot 1016. The latch 1018 is provided below the locking button 1017 and extends through the housing 1011 to align with the locking slot 1032 on the vibration device 103. The elastic member 1019 is also provided below the locking button 1017 to provide a rebound force to the locking button 1017.

[0098] When tightening the tool lock 1045 and the vibrating device 103, press the locking button 1017 on the housing 1011 to secure the vibrating device 103. After tightening, release the locking button 1017, and the latch 1018, under the action of the elastic member 1019, disengages the locking groove 1032 of the vibrating device 103, facilitating the movement of the vibrating device 103. Similarly, when removing the cutter head assembly 104, press the locking button 1017 to secure the vibrating device 103, then loosen the blade barrel locking member 1045 to disconnect the cutter head assembly 104 from the vibrating device 103. To adjust the orientation of the outer blade edge 1411 of the outer tube 1041, first use the slender handle 1431 to adjust it, and then tighten the blade barrel locking member 1045. The locking force of the blade barrel locking member 1045 is transmitted to the rear end of the inner tube 1042 via the inner tube connector 1044, contacting and pressing the rear end of the inner tube 1042 against the output end 1031 of the vibrating device 103, thereby transferring energy and achieving tissue cutting. Optionally, the rear end of the inner tube connector 1044 extends a distance from the inner tube 1042 and has a tapered shape. The output end 1031 of the vibrating device 103 is provided with a tapered boss. These two components cooperate to connect the inner tube 1042 to the vibrating device 103, resulting in a simple structure.

[0099] The vibration device 103 may include an ultrasonic transducer or other device capable of generating vibration. For example, the vibration device 103 includes an ultrasonic transducer, and a conductive ring 106 is further provided in the housing 1011. The conductive ring 106 is arranged around the periphery of the ultrasonic transducer and is electrically connected to the ultrasonic transducer. The ultrasonic signal generated by the ultrasonic generator in the host 200 is transmitted to the ultrasonic transducer through the conductive ring 106. After receiving the high-frequency electrical signal, the ultrasonic transducer vibrates, thereby driving the inner tube 1042 to vibrate. In some embodiments, the operating frequency of the vibration device 103 may be in the range of 20-60KHz, such as 20KHz, 30KHz, 40KHz, 50KHz or 60KHz. A lower operating frequency can prevent the tissue temperature from being too high. In practice, the frequency can be adjusted according to different types of tissues.

[0100] In this embodiment, when the blade tube vibrates and rotates, the tissue cutting effect is better than that of traditional planers, and tissue is less likely to stick or get stuck between the inner and outer tubes. Furthermore, the blade tube's rotational speed can be significantly reduced while still maintaining a good cutting effect, thereby reducing the risk of tissue damage, blade overheating, and / or wear.

[0101] Example 2

[0102] Please refer to Figure 7-9The difference between this embodiment and the first embodiment is that the blade tube in the blade head component 104 is a single tube 1042a with a sealed end, and the single tube 1042a is provided with a blade edge 1421a on the side of the sealed end. The single tube 1042a has a through hole 1422a at the corresponding cavity 1012, and a suction channel 1423 is provided in the single tube 1042a. The suction channel 1423 connects the blade edge 1421 and the through hole 1422. The tail end of the single tube is provided with a connecting structure 1424 for connecting to the vibration device 103. Compared with the double tube in the traditional planer, the single tube blade used in this embodiment can discharge the cut tissue more efficiently, and there is no wear and knife jamming problem of the double-layer blade tube. It has good durability, simple structure, and is easy to maintain and disinfect.

[0103] Accordingly, this embodiment uses a blade tube connector 1043a to replace the outer tube connector 1043 and the inner tube connector 1044 in the first embodiment. The blade tube connector 1043a is at least partially located within the housing 1011 and is sleeved onto the blade tube. The end of the blade tube connector 1043a near the vibration device 103 wraps around the connection between the connecting structure 1424 and the vibration device 103. The blade tube connector 1043a has a slot 1432 at a position corresponding to the through hole 1422a, thereby connecting the through hole 1422 to the cavity 1012.

[0104] The blade tube connector 1043a does not need to be provided with the elongated handle 1431 as in the previous embodiment, but the drive motor 102 drives the blade head component 104 to rotate to the desired direction (for example, the direction in which the blade edge 1421a faces). Thereafter, the vibration device 103 operates to allow the blade head component 104 to perform planing.

[0105] The knife tube locking member 1045 is sleeved on the periphery of the knife tube connecting member 1043a, and the tail of the knife tube locking member 1045 wraps the tail of the knife tube connecting member 1040 and provides locking force.

[0106] In some embodiments, the operating frequency of the vibration device 103 is within the range of 20-60KHz, such as 20KHz, 30KHz, 40KHz, 50KHz or 60KHz. The rotation speed of the blade tube can be reduced from the 700-800 rpm currently used in surgery to 50-400 rpm, such as 50, 100, 200 or 400 rpm. In actual operation, the rotation speed can be determined within this range according to the size of the object to be planed. If the size is large, the rotation speed can be higher, and if the size is small, the rotation speed can be lower. Compared with the double-tube planer in the prior art that only has a drive motor, the rotation speed of the blade tube in the single-tube planer of this embodiment is slower while maintaining the cutting efficiency. While ensuring cutting efficiency, it avoids excessive tissue temperature and improves the comfort of the patient.

[0107] The other components of the planer 100 of this embodiment are the same as those of the first embodiment and will not be described again here.

[0108] The basic concepts have been described above. It will be apparent to those skilled in the art that the above disclosure is merely illustrative and does not constitute a limitation of the present invention. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and revisions to the present invention. Such modifications, improvements, and revisions are suggested in the present invention and remain within the spirit and scope of the exemplary embodiments of the present invention.

[0109] At the same time, this utility model uses specific terms to describe the embodiments of the utility model. For example, "one embodiment," "an embodiment," and / or "some embodiments" refer to a certain feature, structure, or characteristic associated with at least one embodiment of the utility model. Therefore, it should be emphasized and noted that the mention of "one embodiment," "an embodiment," or "an alternative embodiment" two or more times in different places in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics of one or more embodiments of the utility model may be appropriately combined.

[0110] Similarly, it should be noted that, in order to simplify the presentation of this disclosure and thus facilitate understanding of one or more embodiments of the invention, the foregoing descriptions of embodiments of this invention sometimes combine multiple features into a single embodiment, figure, or description thereof. However, this disclosure method does not imply that the subject matter of this invention requires more features than those mentioned. In fact, an embodiment may have fewer features than all of the features of a single embodiment disclosed above.

[0111] Numbers are used in some embodiments, and it should be understood that such numbers used to describe the embodiments are modified in some examples using the modifiers "about", "approximately" or "substantially". Unless otherwise stated, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification are approximate values, which may change according to the required characteristics of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of the scope of some embodiments of the present invention are approximate values, in specific embodiments, the settings of such numerical values ​​are as accurate as possible within the feasible range.

[0112] Although the present invention has been described with reference to the current specific embodiments, ordinary technicians in this technical field should recognize that the above embodiments are only used to illustrate the present invention, and various equivalent changes or substitutions can be made without departing from the spirit of the present invention. Therefore, as long as the changes and modifications to the above embodiments are within the scope of the essential spirit of the present invention, they will fall within the scope of the present invention.

Claims

1. A medical planer, characterized in that: It includes a handle, a drive motor, a vibration device, a cutter head component and a suction device, wherein: The handle has a shell, a side surface of the shell has a through hole, and the through hole is connected to the suction device; The driving motor and the vibration device are arranged in the housing, and the driving motor is connected to the vibration device; The cutter head component is mounted on the front end of the housing and connected to the vibration device. The cutter head component includes a cutter tube. The head end of the cutter tube has a cutting edge. The inside of the cutter tube has a suction channel communicating with the cutting edge, and the through hole is in communication with the suction channel. The vibration device is used to drive the knife tube to vibrate, and the drive motor is used to drive the vibration device to rotate and then drive the knife tube to rotate.

2. The medical shaver according to claim 1, wherein: The knife tube is a single tube with a sealed end at the head end. The knife edge is provided on the side of the sealed end of the single tube. The tail end of the single tube is provided with a connecting structure. The connecting structure is connected to the vibration device. The vibration device is used to drive the single tube to vibrate. The drive motor is used to drive the vibration device to rotate and thereby drive the single tube to rotate.

3. The medical shaver according to claim 2, wherein: The cutter head component also includes a cutter tube connector, which is at least partially located in the shell and sleeved on the cutter tube. The end of the cutter tube connector close to the vibration device wraps around the connection between the connection structure and the vibration device.

4. The medical shaver according to claim 3, wherein: The knife tube connector has a control section located outside the shell, and a slender handle is provided on the control section. The slender handle is used to control the knife tube connector to drive the knife tube to rotate in the shell, thereby changing the direction of the knife edge.

5. The medical shaver according to claim 3, wherein: The cutter head component also includes a knife tube locking piece, which is sleeved on the periphery of the knife tube connecting piece. The tail of the knife tube locking piece wraps the tail of the knife tube connecting piece and provides locking force. The tail end of the knife tube locking piece has a connecting part, and the connecting part is connected to the outer periphery of the vibration device.

6. The medical shaver according to claim 1, wherein: The knife tube includes an inner tube and an outer tube, the inner tube is arranged in the outer tube, the head end of the outer tube has an outer blade, the inner tube has the suction channel and an inner blade corresponding to the outer blade, the outer blade and the inner blade constitute the blade, the tail end of the inner tube extends out of the outer tube and is provided with a connecting structure, the connecting structure is connected to the vibration device, the vibration device is used to drive the inner tube and / or the outer tube to vibrate, and the drive motor is used to drive the vibration device to rotate and thereby drive the inner tube to rotate.

7. The medical shaver according to claim 6, wherein: The cutter head component further includes an outer tube connector and an inner tube connector. The outer tube connector is at least partially located in the shell and sleeved on the outer tube. The inner tube connector wraps the connection between the connection structure and the vibration device.

8. The medical shaver according to claim 7, wherein: The outer tube connector has a control section located outside the shell. The control section is provided with a slender handle. The slender handle is used to control the outer tube connector to drive the outer tube to rotate in the shell, thereby changing the direction of the blade of the outer tube.

9. The medical shaver according to claim 1, wherein: A key slot is provided on the shell, a locking slot is provided on the outer periphery of the vibration device, and the handle further includes a locking button, a latch and an elastic member. The locking button is installed in the key slot, the latch is provided below the locking button, and passes through the shell and is aligned with the locking slot on the vibration device. The elastic member is provided below the locking button to provide a rebound force to the locking button.

10. The medical shaver according to claim 1, wherein The rotation speed of the knife tube is in the range of 50-400 rpm.

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