Medical split type planer tool transmission assembly and split type planer tool

Abstract

The utility model relates to the technical field of medical instruments, and discloses a medical split type planer tool transmission assembly and a split type planer tool, the medical split type planer tool transmission assembly comprises a mounting seat and a front reducing sleeve, the mounting seat comprises a vertical mounting plate and a transverse supporting seat; a driving interface part is mounted on the vertical mounting plate, a driving gear is mounted on the driving interface part, and a first bearing is arranged between the driving interface part and the vertical mounting plate; a stepped hole and a mounting hole which are communicated with each other are transversely formed in the front reducing sleeve, and a water injection hole communicated with the stepped hole is further formed in the front reducing sleeve; a transverse hole is formed in the transverse supporting seat, the front reducing sleeve is partially arranged in the transverse hole, a driven gear is mounted in the transverse hole, a gear sleeve is arranged on the driven gear, a second bearing sleeves the gear sleeve, and the second bearing is mounted in the mounting hole; and a duplicate gear is arranged on the vertical mounting seat and is respectively meshed with the driving gear and the driven gear. According to the utility model, the assembly process is less, and the transmission stability and accuracy are high.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a medical split-type planer transmission assembly and a split-type planer. Background Technology

[0002] The split-type shaving blade is a commonly used tool in minimally invasive endoscopic surgery, primarily for the shaving of soft tissues in surgical procedures such as otolaryngology, joint surgery, urology, and gynecology. Current split-type shaving blades connect to a negative pressure suction device via a negative pressure suction tube. Negative pressure is transmitted through the hollow blade to the front end, drawing soft tissue into the blade opening. The outer blade barrel remains stationary, while the blade itself rotates reciprocating under the drive of a motor, thus cutting the soft tissue with the cutting edge.

[0003] Existing planers generally include a power unit, a transmission unit, and a planer blade assembly. They are divided into integrated and separate types. The integrated type has the power unit located inside the planer handle and is discarded after use. The separate type has the handle containing the power unit separated from the transmission unit and the planer blade assembly. In this way, the power unit can be reused, reducing the cost of medical consumables.

[0004] For the transmission components of split planers, the current transmission components are relatively complex in structure because they require high stability and precision. They involve many assembly steps during production and the positioning of each component is also quite complicated. In actual assembly, this can easily affect the stability and accuracy of the transmission. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a medical split-type planer transmission component and a split-type planer, which has fewer assembly steps and high transmission stability and accuracy.

[0006] This utility model solves the above-mentioned technical problems through the following technical means:

[0007] In a first aspect, this utility model discloses a medical split-type planer transmission assembly, characterized in that: it includes a mounting base and a front adapter sleeve; the mounting base includes an integral vertical mounting plate and a horizontal support base; a drive interface component is mounted on the vertical mounting plate, a drive gear is mounted on the drive interface component, and a first bearing is provided between the drive interface component and the vertical mounting plate; the front adapter sleeve has a stepped hole and a mounting hole that are interconnected horizontally, and a water injection hole communicating with the stepped hole is also provided on the front adapter sleeve; the horizontal support base has a horizontal hole, and part of the front adapter sleeve is disposed in the horizontal hole; a driven gear is installed in the horizontal hole, a gear sleeve is provided on the driven gear, and a second bearing is sleeved on the gear sleeve, the second bearing being installed in the mounting hole; the vertical mounting base also has a double gear, which meshes with the drive gear and the driven gear respectively.

[0008] Furthermore, the drive interface component includes a drive tube and an input shaft. The drive tube is fixedly mounted on the vertical mounting plate. The input shaft passes through and is fixed to the inner ring of the first bearing. A shift fork connector is fixedly connected to the end of the input shaft away from the vertical mounting plate. A spring is sleeved on the input shaft between the shift fork connector and the first bearing. In this technical solution, when installing the motor, a connector that mates with the shift fork connector is connected to the motor's output shaft, allowing the motor to rotate via the shift fork connector and the input shaft. The first bearing reduces rotational friction on the input shaft, decreasing wear and operating noise. The end of the shift fork connector away from the vertical mounting plate can be male, allowing the connector on the motor's output shaft to be female. This connection method makes power transmission more stable and reduces vibration during surgery.

[0009] Furthermore, the large gear of the double gear meshes with the driving gear, and the small gear meshes with the driven gear. The large gear of the double gear has a greater number of teeth than the driving gear, and the driven gear has a greater number of teeth than the small gear. An external motor is connected to the input shaft, and the motor itself typically rotates at a high speed. The motor transmits torque to the input shaft, and the rotation of the input shaft drives the double gear to rotate via the driving gear. The double gear then drives the driven gear to rotate. Because the large gear of the double gear has a greater number of teeth than the driving gear, and the driven gear has a greater number of teeth than the small gear, the rotational speed of the internal tool assembly is reduced.

[0010] Furthermore, a pin hole is provided on the vertical mounting plate, and a pin is rotatably connected to the pin hole. The double gear is fixedly mounted on the pin. This technical solution utilizes the pin to mount the double gear, thereby enabling the motor to sequentially drive the drive gear, the double gear, and the driven gear to rotate.

[0011] Secondly, this utility model also discloses a split-type planer, including a planer assembly and the aforementioned planer transmission assembly; the planer assembly includes an outer tube, a middle tube component, and an inner tube component from the outside to the inside; the middle tube component includes a fixedly connected middle tube and an outer cutter head, and the inner tube component includes a fixedly connected inner tube and an inner cutter head; the inner cutter head is rotatably disposed inside the outer cutter head, the inner tube includes a grooved tube and an extension tube, the extension tube and the outer cutter head are respectively fixed at both ends of the grooved tube, and the inner tube is rotatably disposed inside the grooved tube and the extension tube; the outer wall of the outer tube is fixedly connected to the inner wall of the large hole of the stepped hole, the outer wall of the extension tube is fixedly connected to the inner wall of the small hole of the stepped hole, and a water passage is formed between the extension tube and the inner wall of the large hole of the stepped hole, the water passage being connected to both the water injection gap and the water injection hole. In this technical solution, water entering the water injection hole can first enter the water passage, and then enter the water injection gap between the extension tube and the outer tube, achieving the purpose of smooth water flow.

[0012] Furthermore, the inner tube, the grooved tube, and the outer tube are bent at the same position to form a bend. The bend of the inner tube is a flexible spring section, and at least one axially distributed water passage groove is provided on the outer wall of the bend of the grooved tube. There is a water injection gap between the outer tube and the grooved tube. When the planer blade is made into a curved shape, this technical solution can be suitable for surgery in a specific orientation. Moreover, the injected water flows in through the water injection gap between the outer tube and the middle tube and will not be sucked away by the gap on the flexible spring section of the inner tube, so that all the injected water can enter the outer and inner blades of the planer blade, resulting in higher water injection efficiency. In addition, by providing at least one axially distributed water passage groove on the outer wall of the bend of the grooved tube, when the inner tube, the grooved tube, and the outer tube are bent together, the deformation of the middle tube can be reduced due to the water passage groove, and the injected water can also flow through the water passage groove, thereby increasing the water flow rate.

[0013] Furthermore, both ends of the grooved tube are provided with connectors whose outer diameter is smaller than that of the grooved tube. These connectors are fixed to the inner cutter head and the extension tube, respectively. A first water collection groove and a second water collection groove are respectively provided at the connection points between the grooved tube and the inner cutter head and the extension tube. In this technical solution, when external water flows into the bend from the water injection gap between the outer tube and the extension tube, it first enters the second water collection groove between the extension tube and the grooved tube, and then flows from the water passage groove into the first water collection groove between the grooved tube and the outer cutter head. After the injected water merges, it then enters the gap between the outer cutter head and the inner cutter head. To ensure both the required water flow rate and the required strength of the grooved tube, four water passage grooves are arranged in a circumferential array on the outer wall of the grooved tube.

[0014] Furthermore, a gap exists between the outer and inner cutting heads. A recessed water-passing flat section is provided on the side of the outer cutting head near the outer tube, and this water-passing flat section communicates with the first water collection channel. A connecting hole is provided on the water-passing flat section, connecting the water-passing flat section and the gap between the cutting heads. This technical solution, through the design of the water-passing flat section and the connecting hole, allows injected water to flow out from the gap between the outer and inner cutting heads, wetting the planing area. The water-passing flat section also allows for a larger inlet space in the connecting hole, facilitating the flow of water from the first water collection channel into the connecting hole.

[0015] Furthermore, a seal is provided between the second bearing and the bottom of the mounting hole, and a gear adapter is fixedly sleeved on the inner tube, with the seal sleeved on the gear adapter. In this technical solution, the seal effectively seals the water entering the water passage, preventing water from flowing out from other places.

[0016] Furthermore, the spring segment is provided with a convex groove and a T-shaped block. The T-shaped block is movably embedded in the convex groove, and a hook is provided on the T-shaped block. The T-shaped block is hooked onto the edge of the convex groove, and a sliding gap is provided between the convex groove and the T-shaped block. In this technical solution, by setting the sliding gap between the convex groove and the T-shaped block, the spring segment can have a larger bending or stretching amount, and the maximum bending angle and maximum elongation of the spring can be controlled, thereby enabling the production of a bending planer with a larger bending angle; and by setting the hook, the spring can be prevented from disengaging.

[0017] Furthermore, the split-type planer also includes a housing and a suction assembly. The housing includes a front body and a rear body detachably connected to the front body. The end of the front adapter sleeve near the outer cutter head is fixedly inserted into the front body, and the mounting base is fixedly installed on the rear body. The suction assembly includes a suction pipe and a regulating valve. The suction pipe is fixedly inserted into the transverse hole, and the end of the suction pipe away from the transverse hole protrudes from the housing. The transverse support base has a valve mounting hole that is perpendicularly connected to the transverse hole. The regulating valve is rotatably installed in the valve mounting hole, and the regulating valve has a vent hole that can communicate with the transverse hole. The axial direction of the rear body is provided with a water injection pipe mounting groove and a suction pipe mounting groove. An electronic tag is provided on the rear body. The rear body is provided with a mounting through hole, and the regulating valve is provided with a clearance groove. The edge of the rear body around the mounting through hole is engaged in the clearance groove, and the end of the regulating valve outside the transverse hole is provided with a handle block. In this technical solution, the reducer assembly, front adapter sleeve, water injection pipe, suction pipe, etc. are enclosed and installed using the front and rear main bodies, making it easy to hold. The installation through holes allow the regulating valve to be securely and sealed on the outer casing, facilitating adjustment. The electronic tag can record information about the planer blade. Generally, an identification chip corresponding to the electronic tag can also be set on the external motor. When the electronic tag contacts the identification chip, the motor can recognize the information recorded on the planer blade's electronic tag and thus provide corresponding power according to the planer blade's condition.

[0018] The beneficial effects of this utility model are:

[0019] 1. The mounting base of the transmission component of this utility model includes an integrated vertical mounting plate and a horizontal support base. The drive interface component and the double gear are mounted on the vertical mounting plate of the mounting base, and the driven gear and the front adapter sleeve are mounted on the horizontal support base. The entire structure only requires two bearings, the first bearing and the second bearing, as well as the drive gear, the double gear and the driven gear to complete the transmission and speed change. The entire structure is relatively simple, and the assembly is simpler and more convenient with fewer steps. Such a transmission component can also achieve good stability and accuracy.

[0020] 2. The split planer of this utility model can be made into both straight and curved planers. When made into a curved planer, at least one axially distributed water passage groove is provided on the outer wall of the bending part of the groove tube. When the inner tube, groove tube, and outer tube are bent together, the water passage groove reduces the deformation of the groove tube and allows water to flow through it, thereby increasing the water flow rate. Furthermore, the water passage groove on the groove tube prevents deformation during bending and ensures that the soft spring section on the inner tube does not jam after bending, allowing the inner tube to rotate smoothly. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the structure of a medical split-type planer transmission assembly according to Embodiment 1;

[0022] Figure 2 for Figure 1 Exploded view of the transmission assembly;

[0023] Figure 3 for Figure 2 Schematic diagram of the middle mounting base;

[0024] Figure 4 for Figure 2 Schematic diagram of the front-to-mid-section adapter sleeve;

[0025] Figure 5 This is a schematic diagram of the structure of a medical planer in Example 2;

[0026] Figure 6 for Figure 5 Exploded view of a medical planer;

[0027] Figure 7 for Figure 6 Schematic diagram of the structure of the main body in the middle and rear;

[0028] Figure 8 for Figure 6 A schematic diagram of the structure of the central groove tube, the outer cutter head, and the extension tube;

[0029] Figure 9 for Figure 8 Schematic diagram of the longitudinal cross-sectional structure of the intermediate groove tube;

[0030] Figure 10 for Figure 6 Schematic diagram of the structure of the regulating valve;

[0031] Figure 11 for Figure 5 A schematic diagram of the cross-sectional structure;

[0032] Figure 12 for Figure 11 A magnified view of a portion of point A in the middle;

[0033] Figure 13 This is a cross-sectional structural diagram of the planer assembly;

[0034] Figure 14 for Figure 13 A magnified view of a portion of point B in the middle;

[0035] Figure 15 This is a magnified view of a section of the soft spring.

[0036] The components include: a horizontal support base 101, a vertical mounting plate 102, a front adapter sleeve 103, a drive gear 104, a double gear 105, a driven gear 106, a gear sleeve 107, a horizontal hole 108, a first bearing 109, a second bearing 110, a water injection hole 111, a water injection pipe 112, a drive pipe 113, an input shaft 114, a shift fork joint 115, a spring 116, a pin hole 117, and a pin 118.

[0037] Inner pipe 201, grooved pipe 202, water passage groove 203, extension pipe 204, outer pipe 205, inner cutter head 206, outer cutter head 207, bending section 208, soft spring section 209, water injection gap 210, first water collection groove 211, second water collection groove 212, water passage flat section 213, connecting hole 214, water passage 215, power adapter 216, sealing element 217, suction channel 218, convex groove 219, T-block 220, sliding gap 221

[0038] Suction tube 301, regulating valve 302, vent 303, clearance groove 304, handle block 305.

[0039] Front body 401, rear body 402, water injection pipe mounting groove 403, suction pipe mounting groove 404, electronic tag 405. Detailed Implementation

[0040] The present invention will now be described in detail with reference to the accompanying drawings:

[0041] Example 1

[0042] This embodiment is a medical split-type planer transmission assembly, such as... Figures 1-4As shown, the device includes a mounting base and a front adapter sleeve 103. The mounting base includes an integral vertical mounting plate 102 and a horizontal support base 101. A drive interface component is mounted on the vertical mounting plate 102, and a drive gear 104 is mounted on the drive interface component. A first bearing 109 is provided between the drive interface component and the vertical mounting plate 102. The front adapter sleeve 103 has horizontally interconnected stepped holes and mounting holes. The front adapter sleeve 103 also has a water injection hole 111 communicating with the stepped holes. A water injection pipe 112 is connected to the upper part of the mounting base. A horizontal hole 108 is provided on the horizontal support base 101. A front adapter sleeve 103 is partially disposed in the horizontal hole 108. A driven gear 106 is installed in the horizontal hole 108. A gear sleeve 107 is provided on the driven gear 106. A second bearing 110 is sleeved on the gear sleeve 107 and is installed in the mounting hole. A double gear 105 is also provided on the vertical mounting base. The double gear 105 meshes with the drive gear 104 and the driven gear 106 respectively. In this embodiment, the large gear of the double gear 105 meshes with the drive gear 104, and the small gear of the double gear 105 meshes with the driven gear 106. The number of teeth on the large gear of the double gear 105 is greater than the number of teeth on the drive gear 104, and the number of teeth on the driven gear 106 is greater than the number of teeth on the small gear of the double gear 105. An external motor is connected to the input shaft 114. The motor itself generally rotates at a relatively high speed. The motor transmits torque to the input shaft 114. The rotation of the input shaft 114 drives the double gear 105 to rotate via the drive gear 104. The double gear 105 then drives the driven gear 106 to rotate. Because the number of teeth on the large gear of the double gear 105 is greater than the number of teeth on the drive gear 104, and the number of teeth on the driven gear 106 is greater than the number of teeth on the small gear of the double gear 105, the rotational speed of the internal tool assembly is reduced.

[0043] In this embodiment, the drive interface component includes a drive tube 113 and an input shaft 114. The drive tube 113 is fixedly mounted on the vertical mounting plate 102. The input shaft 114 passes through and is fixed to the inner ring of the first bearing 109. A shift fork connector 115 is fixedly connected to the end of the input shaft 114 away from the vertical mounting plate 102. A spring 116 is sleeved on the input shaft 114 between the shift fork connector 115 and the first bearing 109. In this technical solution, when installing the motor, a connector that can mate with the shift fork connector 115 is connected to the output shaft of the motor, allowing the motor to rotate through the shift fork connector 115 and the input shaft 114. The first bearing 109 reduces the rotational friction of the input shaft 114, decreasing frictional wear and operating noise. The end of the shift fork connector 115 away from the vertical mounting plate 102 can be a male connector, thus allowing the connector on the motor output shaft to be a female connector. This connection method makes the power transmission more stable and reduces vibration during surgery.

[0044] For ease of installation, a pin hole 117 is provided on the vertical mounting plate 102. A pin 118 is rotatably connected to the pin hole 117, and the double gear 105 is fixedly mounted on the pin 118. In this way, the double gear 105 is mounted using the pin 118, so that the motor sequentially drives the drive gear 104, the double gear 105, and the driven gear 106 to rotate.

[0045] Example 2

[0046] This embodiment is a split-type planer, such as Figures 5-15 As shown, the planer includes a planer assembly and the planer transmission assembly of Embodiment 1 above. The planer assembly includes an outer tube 205, a middle tube component, and an inner tube 201 component from the outside to the inside. The middle tube component includes a fixedly connected middle tube and an outer cutter head 207. The inner tube 201 component includes a fixedly connected inner tube 201 and an inner cutter head 206. The inner cutter head 206 is rotatably disposed inside the outer cutter head 207. The inner tube 201 includes a groove tube 202 and an extension tube 204. The extension tube 204 and the outer cutter head 207 are respectively fixed at both ends of the groove tube 202. The inner tube 201 is rotatably disposed inside the groove tube 202 and the extension tube 204. The outer wall of the outer tube 205 is fixedly connected to the inner wall of the large hole of the stepped hole. The outer wall of the extension tube 204 is fixedly connected to the inner wall of the small hole of the stepped hole. A water passage 215 is formed between the extension tube 204 and the inner wall of the large hole of the stepped hole. The water passage 215 is connected to the water injection gap 210 and the water injection hole 111. In this technical solution, the water entering the water injection hole 111 can first enter the water passage 215, and then enter the water injection gap 210 between the extension pipe 204 and the outer pipe 205, so as to achieve the purpose of smooth water flow.

[0047] like Figure 6 , Figure 8 and Figure 9 As shown, the inner tube 201, the groove tube 202 and the outer tube 205 are bent at the same position to form a bend 208. The bend 208 of the inner tube 201 is a soft spring section 209. Four water passage grooves 203 are provided on the outer wall of the bend 208 of the groove tube 202 along the axis. There is a water injection gap 210 between the outer tube 205 and the groove tube 202. When the planer blade is made into a curved shape, it can be suitable for surgery in a specific orientation. Furthermore, the injected water flows in through the water injection gap 210 between the outer tube 205 and the intermediate tube, and is not sucked away by the gap on the soft spring section 209 of the inner tube 201. This allows all the injected water to enter the outer blade head 207 and the inner blade head 206 of the planer blade, resulting in higher water injection efficiency. In addition, by setting a water passage groove 203 on the outer wall of the bend 208 of the grooved tube 202, when the inner tube 201, grooved tube 202, and outer tube 205 are bent together, the water passage groove 203 reduces the deformation of the intermediate tube, and the injected water can also flow through the water passage groove 203, thereby increasing the water flow rate.

[0048] In this embodiment, as Figure 8 As shown, both ends of the grooved pipe 202 are provided with connectors whose outer diameter is smaller than that of the grooved pipe 202. The connectors at both ends of the grooved pipe 202 are fixed to the inner cutter head 206 and the extension pipe 204, respectively. A first water collection groove 211 and a second water collection groove 212 are respectively provided at the connection between the grooved pipe 202 and the inner cutter head 206 and the extension pipe 204. In this technical solution, when external water flows into the bending part 208 from the water injection gap 210 between the outer pipe 205 and the extension pipe 204, it first enters the second water collection groove 212 between the extension pipe 204 and the grooved pipe 202, and then flows from the water passage 203 into the first water collection groove 211 between the grooved pipe 202 and the outer cutter head 207. After the injected water merges, it enters the gap between the outer cutter head 207 and the inner cutter head 206. In order to ensure the required water flow rate and the strength of the channel tube 202, four water channels 203 are arranged in a circular array on the outer wall of the channel tube 202.

[0049] like Figure 8 As shown, there is a gap between the outer cutter head 207 and the inner cutter head 206. A recessed water-passing flat section 213 is provided on the side of the outer cutter head 207 near the outer tube 205, and the water-passing flat section 213 is connected to the first water collection groove 211. A connecting hole 214 is provided on the water-passing flat section 213 connecting the water-passing flat section 213 and the gap between the cutter heads. With the setting of the water-passing flat section 213 and the connecting hole 214, the injected water can flow out from the gap between the outer cutter head 207 and the inner cutter head 206 to wet the planing part. The water-passing flat section 213 can make the water inlet position of the connecting hole 214 larger, which is conducive to the water flowing from the first water collection groove 211 into the connecting hole 214.

[0050] like Figure 14 As shown, a seal 217 is provided between the second bearing 110 and the bottom of the mounting hole. A gear adapter is fixedly sleeved on the inner tube 201, and the seal 217 is sleeved on the gear adapter. The seal 217 can be an O-ring or a V-ring; in this embodiment, it is an O-ring. The seal 217 effectively seals the water entering the water passage 215, preventing water from flowing out from other places.

[0051] like Figure 15As shown, the spring segment 209 is provided with a convex groove 219 and a TT-shaped block 220. The TT-shaped block 220 is movably embedded in the convex groove 219 and is provided with an undercut hook. The TT-shaped block 220 is undercut against the edge of the convex groove 219, and a sliding gap 221 is provided between the convex groove 219 and the TT-shaped block 220. In this technical solution, by setting the sliding gap 221 between the convex groove 219 and the TT-shaped block 220, the spring segment 209 can have a larger bending or stretching amount, and the maximum bending angle and maximum elongation of the spring can be controlled, thereby making a bending planer with a larger bending angle; and by setting the undercut hook, the spring can be prevented from disengaging.

[0052] like Figures 5-7 As shown, the split-type planer also includes a housing and a suction assembly. The housing includes a front body 401 and a rear body 402 detachably connected to the front body 401. A front adapter sleeve 103 is fixedly mounted on the front body 401 at one end near the outer cutter head 207, and a mounting base is fixedly mounted on the rear body 402. The suction assembly includes a suction pipe 301 and a regulating valve 302. The suction pipe 301 is fixedly inserted into the transverse hole 108, and the end of the suction pipe 301 away from the transverse hole 108 protrudes from the housing. The transverse support 101 has a valve mounting hole that is perpendicularly connected to the transverse hole 108. Figure 10 As shown, the regulating valve 302 is rotatably mounted in the valve mounting hole, and the regulating valve 302 has a vent hole 303 that can communicate with the transverse hole 108; the rear body 402 is provided with a water injection pipe 112 mounting groove and a suction pipe 301 mounting groove in the axial direction; an electronic tag 405 is provided on the rear body 402; the rear body 402 is provided with a mounting through hole, and the regulating valve 302 is provided with a relief groove 304. The edge of the rear body 402 around the mounting through hole is locked in the relief groove 304, and the end of the regulating valve 302 located outside the transverse hole 108 is provided with a handle block 305. In this technical solution, the transmission components, front adapter sleeve 103, water injection pipe 112, suction pipe 301, etc. are enclosed and installed using the front body 401 and rear body 402, making it easy to hold. The installation through hole allows the regulating valve 302 to be securely and sealed on the outer casing, facilitating adjustment. The electronic tag 405 can record information about the planer. Generally, an identification chip corresponding to the electronic tag 405 can also be set on the external motor. When the electronic tag 405 contacts the identification chip, the motor can recognize the information recorded on the planer's electronic tag 405 and thus provide corresponding power according to the planer's condition.

[0053] The usage method of this embodiment is as follows:

[0054] Before use, connect the water inlet pipe 112 to an external water source (such as a peristaltic pump), and connect the external negative pressure suction device to the suction pipe 301 of the rear body 402. Align the connector on the motor output shaft with the male end of the shift fork connector 115. After installing the motor, the electronic tag 405 on the upper surface of the rear body 402 contacts the identification chip on the motor. The motor can then recognize the information recorded on the planer's electronic tag 405 and provide corresponding power according to the planer's condition.

[0055] During the procedure, one end of the outer blade 207 is inserted into the surgical site, with the window structure of the outer blade 207 aligned with the soft tissue to be shaved. At this time, the suction device evacuates the inner tube 201 through the suction tube 301, allowing the window structure of the outer blade 207 to draw the soft tissue into the window structure. Simultaneously, external water can enter through the water injection pipe 112 into the water injection hole 111, water passage 215, water injection gap 210, second water collection groove 212, water passage groove 203, first water collection groove 211, water passage flat 213, and connecting to the blade gap, achieving the purpose of wetting and cooling the blade.

[0056] The motor rotates, transmitting torque to the input shaft 114. The rotation of the input shaft 114 drives the double gear 105 via the drive gear 104, which in turn drives the driven gear 106. The rotation of the driven gear 106 causes the gear adapter tube and inner tube 201 to rotate. The rotation of the inner tube 201 transmits torque to the inner cutter head 206. The inner cutter head 206 rotates while the outer cutter head 207 remains stationary, creating a rotational shearing effect between the cutting edges of the inner and outer cutter heads 206 and 207. This rotational shearing effect is used to shave soft tissue. The shaved soft tissue, along with water, enters the inner tube 201 under negative pressure and is finally suctioned out by the negative pressure device. During this process, because the soft tissue is diluted by the water, it is less likely to clog the inner tube 201, allowing the surgery to proceed smoothly.

[0057] In this embodiment, the outer tube 205 and the inner tube 201 are bent together to form a bending part 208, which can adapt to surgery in different angle environments. The bending part 208 on the inner tube 201 is a soft spring segment 209, which can also transmit torque to drive the inner blade head 206 to rotate, making it very convenient to use.

[0058] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model. Technologies, shapes, and structural parts not described in detail in this utility model are all known technologies.

Claims

1. A medical split planer tool drive assembly, characterized by: The device includes a mounting base and a front adapter sleeve. The mounting base comprises an integral vertical mounting plate and a horizontal support base. A drive interface component is mounted on the vertical mounting plate, and a drive gear is mounted on the drive interface component. A first bearing is provided between the drive interface component and the vertical mounting plate. The front adapter sleeve has interconnected stepped holes and mounting holes on its horizontal sides, and a water injection hole communicating with the stepped holes is also provided on the front adapter sleeve. The horizontal support base has a horizontal hole, and part of the front adapter sleeve is disposed within the horizontal hole. A driven gear is mounted within the horizontal hole, and a gear sleeve is provided on the driven gear. A second bearing is fitted onto the gear sleeve, and the second bearing is installed within the mounting hole. The vertical mounting base also has a double gear, which meshes with both the drive gear and the driven gear.

2. The medical split blade transmission assembly of claim 1, wherein: The drive interface component includes a drive tube and an input shaft. The drive tube is fixedly mounted on a vertical mounting plate. The input shaft passes through and is fixed to the inner ring of the first bearing. A shift fork connector is fixedly connected to the end of the input shaft away from the vertical mounting plate. A spring is sleeved on the input shaft between the shift fork connector and the first bearing.

3. The medical split blade transmission assembly of claim 2, wherein: The large gear of the double gear meshes with the driving gear, and the small gear meshes with the driven gear. The large gear of the double gear has more teeth than the driving gear, and the driven gear has more teeth than the small gear.

4. A split cutter characterized by: The invention includes a planer assembly and a planer drive assembly as described in any one of claims 1-3; the planer assembly includes an outer tube, a middle tube component, and an inner tube component from the outside to the inside; the middle tube component includes a fixedly connected middle tube and an outer cutter head, and the inner tube component includes a fixedly connected inner tube and an inner cutter head; the inner cutter head is rotatably disposed inside the outer cutter head, the inner tube includes a grooved tube and an extension tube, the extension tube and the outer cutter head are respectively fixed at both ends of the grooved tube, and the inner tube is rotatably disposed inside the grooved tube and the extension tube; the outer wall of the outer tube is fixedly connected to the inner wall of the large hole of the stepped hole, the outer wall of the extension tube is fixedly connected to the inner wall of the small hole of the stepped hole, and a water passage is formed between the extension tube and the inner wall of the large hole of the stepped hole, the water passage being connected to both the water injection gap and the water injection hole.

5. Splitting planer blade according to claim 4, characterized in that: The inner tube, the grooved tube, and the outer tube are bent at the same position to form a bend. The bend of the inner tube is a soft spring section. At least one water passage groove distributed along the axial direction is provided on the outer wall of the bend of the grooved tube. There is a water injection gap between the outer tube and the grooved tube.

6. Splitting planer blade according to claim 5, characterized in that: Both ends of the grooved tube are provided with connectors whose outer diameter is smaller than that of the grooved tube. The connectors at both ends of the grooved tube are fixed to the inner cutter head and the extension tube, respectively. The connection between the grooved tube and the inner cutter head and the extension tube is provided with a first water collection groove and a second water collection groove, respectively.

7. Splitting planer blade according to claim 6, characterized in that: There is a gap between the outer and inner cutter heads. A recessed water-passing flat section is provided on the side of the outer cutter head near the outer tube. The water-passing flat section is connected to the first water collection groove. A connecting hole is provided on the water-passing flat section to connect the water-passing flat section and the gap between the cutter heads.

8. Splitting planer blade according to claim 7, characterized in that: A seal is provided between the second bearing and the bottom of the mounting hole, and a gear adapter is fixedly sleeved on the inner tube, with the seal sleeved on the gear adapter.

9. The split-type planer according to any one of claims 4-8, characterized in that: The spring segment is provided with a convex groove and a T-shaped block. The T-shaped block is movably embedded in the convex groove. The T-shaped block is provided with an inverted hook. The T-shaped block is inverted and attached to the edge of the convex groove. A sliding gap is provided between the convex groove and the T-shaped block.

10. Splitting planer blade according to claim 9, characterized in that: The split-type planer also includes a housing and a suction assembly. The housing includes a front body and a rear body detachably connected to the front body. The end of the front adapter sleeve near the outer cutter head is fixedly inserted into the front body, and the mounting base is fixedly installed on the rear body. The suction assembly includes a suction pipe and a regulating valve. The suction pipe is fixedly inserted into a transverse hole, and the end of the suction pipe away from the transverse hole protrudes from the housing. The transverse support base has a valve mounting hole that is perpendicularly connected to the transverse hole. The regulating valve is rotatably installed in the valve mounting hole, and the regulating valve has a vent hole that can communicate with the transverse hole. The rear body has an axially arranged water injection pipe mounting groove and a suction pipe mounting groove. The rear body has an electronic tag. The rear body has an installation through hole, and the regulating valve has a clearance groove. The edge of the rear body around the installation through hole is engaged in the clearance groove, and the end of the regulating valve outside the transverse hole has a handle block.

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