Surgical tool, split-type shaver, cutter head, power adaptation mechanism, and drive handle

Abstract

A surgical tool, a split-type shaver, a cutter head, a power adaptation mechanism, and a drive handle. The surgical tool comprises: a shaver cutter head, the power adaptation mechanism, and the drive handle. The shaver cutter head is connected to the power adaptation mechanism. The drive handle is detachably connected to the power adaptation mechanism. The drive handle drives the shaver cutter head by means of the power adaptation mechanism. The split-type structure enables the shaver cutter head, the power adaptation mechanism, and the drive handle to be separated from each other, facilitating targeted disinfection of different components after surgery.

Description

Surgical tool, split planer, cutter head, power adapter and driving handle TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular, a surgical tool, a split planer, a cutter head, a power adapter and a driving handle. BACKGROUND

[0002] The planer is a tool often used in minimally invasive endoscopic surgery, mainly used for planing and cutting soft tissue in ear-nose-throat, joint, urinary and gynecological surgery, etc. The negative pressure is connected to the negative pressure suction device through the negative pressure suction pipe, and the negative pressure is transmitted to the front end through the hollow cutter, and the soft tissue is sucked into the cutter opening. The outer cutter barrel is fixed, and the cutter rotates under the drive of the motor, so that the cutting end of the cutter cuts off the soft tissue.

[0003] Chinese patent document CN 202323613720.9 discloses a split planer power adapter and a split planer. The speed reducer assembly is installed on the integrally formed mounting seat, and the fork joint on the driving interface assembly is connected with the external motor. The mounting seat is integrally formed and connected with the motor through the male fork.

[0004] Chinese patent document CN 202311837084.X discloses a surgical planer system and a control method thereof. The cutter assembly includes an outer cutter head and an inner cutter head, and the inner cutter head is rotatably arranged in the outer cutter head. The outer cutter head is provided with an outer planing window, and the inner cutter head is provided with an inner planing window. The power assembly includes a motor and a Hall sensor, and the tail end of the motor is provided with a Hall magnet which is matched with the Hall sensor. The main machine includes a controller, a cutter rotating button and a driver. The motor, the Hall sensor, the cutter rotating button and the driver are electrically connected with the controller.

[0005] Chinese patent document CN 202323516241.5 discloses a planer cutter head assembly and a planer. The planer cutter head assembly includes an outer cutter head and an inner cutter head, and the inner cutter head is rotatably arranged in the outer cutter head. The outer cutter head is provided with an outer planing window, and the inner cutter head is provided with an inner planing window. The inner planing window is provided with an inner planing tooth. The inner planing tooth includes a first inner tooth edge, a first outer tooth edge and a first tooth top intersection line. The height of the inner vertex of the first tooth top intersection line is lower than the height of the outer vertex.

[0006] Because the outer cutter tube and the inner cutter tube are straight tubes, in actual surgery, the inner cutter tube is prone to slight swinging and bending when it rotates, which causes the inner cutter head to be misaligned, and further causes the inner cutter head to be stuck with the outer cutter head, affecting the normal operation of the surgery.

[0007] In some shavings use environments such as ear-nose-throat, joint, the cutting environment of the shaver is without water, which can cause the soft tissue to be blocked in the negative pressure channel after being cut; and the water in the cutting cannot moisturize, so as to achieve the purpose of wetting and cooling the cutter head; in addition, the existing shaver is easy to cause the shavings to be not cut, the fascia tissue to be wound around the cutter head, and the tissue to be blocked in the connection between the cutter head and the cutter tube or the rear part of the cutter tube, which affects the efficiency of the operation.

[0008] The power mechanism in the existing minimally invasive surgical instrument needs to achieve the rotation action of driving the inner tube and the reciprocating movement action of driving the inner tube, and generally needs to set a relatively complex structure to achieve it. The structure arrangement inside the power mechanism is relatively complicated, and when driving the reciprocating rotation movement of the inner tube, it is often affected by the loose cooperation between the structures, which affects the effect and efficiency of the minimally invasive surgery and increases the pain of the patient.

[0009] In the traditional technology, the outer cutter tube of the medical shaver cutter is usually fixedly arranged on the driving handle through screws or other fixing structures. The driving handle drives the inner cutter tube to rotate at a high frequency relative to the axis of the driving handle. The inner cutter tube rotates relative to the outer cutter tube to achieve the removal of cartilage tissue. However, during use, when different length specifications of the shaving cutter are replaced, the cutter needs to be inserted, pulled out and disassembled. The screw fixing method makes the insertion, pulling out and disassembly of the cutter relatively cumbersome and low in efficiency.

[0010] Because of the setting of the suction hole, the current cutter has a large vibration during operation, which can reduce the operation accuracy of medical personnel and even cause the risk of numbness of the hands of medical personnel. The current solution to this problem is to increase damping parts, which can achieve the effect of damping, but this method not only increases the cost, but also increases the structural complexity of the product, which increases the probability of failure of the surgical instrument. SUMMARY

[0011] In view of the defects in the prior art, the purpose of the present application is to provide a surgical tool, a split shaver, a cutter head, a power transfer mechanism and a driving handle.

[0012] According to the split shaver provided by the present application, the cutter assembly is connected to the power transfer mechanism, and the power transfer mechanism obtains external power and drives the cutter assembly.

[0013] Further, the connecting pipe of the power transfer mechanism is connected with a driven gear through a sleeve, and the connecting pipe of the power transfer mechanism is connected with the power transfer mechanism through a bearing arranged on the sleeve.

[0014] The end of the power adapter mechanism is provided with a clamping structure, which is clamped with the clamping structure at the corresponding position of the driving handle.

[0015] The end of the power adapter mechanism is further provided with a suction pipe fixing structure, which includes a metal fixing sheet arranged between the suction pipe and the shell of the power adapter mechanism, and the suction pipe is fixed in the axial and radial directions by the metal fixing sheet.

[0016] According to the surgical tool provided by the application, the driving handle is detachably connected with the cutter assembly.

[0017] The cutter assembly includes an inner cutter assembly, an outer cutter assembly, a power adapter mechanism and a suction pipe, the outer cutter assembly is sleeved on the inner cutter assembly, the inner cutter assembly is in communication with the suction pipe, a gear is sleeved on the inner cutter assembly, the output end of the driving handle can be clamped to an input shaft, the gear set of the power adapter mechanism is driven by the input shaft, the gear set drives the gear, thereby driving the inner cutter assembly to move.

[0018] In the state that the driving handle is connected with the cutter assembly, the driving handle is in contact with the suction pipe, and the driving handle is cooled by the suction pipe.

[0019] According to the straight planing cutter head provided by the application, the inner cutter tube and the inner cutter head are fixedly communicated, the outer cutter tube and the outer cutter head are fixedly communicated, the inner cutter head is rotatably arranged in the outer cutter head, the inner cutter tube is rotatably arranged in the outer cutter tube, the inner cutter head and the outer cutter head are both provided with window structures, the cutter seat includes an outer cutter seat and an inner cutter seat, the inner cutter seat is rotatably connected with the outer cutter seat, the outer cutter tube is fixedly connected with the outer cutter seat, the inner cutter tube is fixedly connected with the inner cutter seat, and the side of the inner cutter tube close to the inner cutter head is provided with a bendable structure.

[0020] The bendable structure is a single buckle structure, and the single buckle structure is a structure in which adjacent inner cutter tubes are embedded in a concave-convex matching manner.

[0021] The water injection planing tool head provided by the application comprises an inner cutter tube, an inner cutter head, an outer cutter tube, an outer cutter head and a cutter seat, the inner cutter tube is fixedly communicated with the inner cutter head, the outer cutter tube is fixedly communicated with the outer cutter head, the inner cutter head is communicated with the outer cutter head, the inner cutter tube and the outer cutter tube, the inner cutter head and the outer cutter head are both provided with planing windows; the cutter seat comprises an outer cutter seat and an inner cutter seat, the outer cutter tube is fixedly connected with the outer cutter seat, the inner cutter tube is fixedly connected with the inner cutter seat, the inner cutter seat is rotatably connected with the outer cutter seat, and the outer cutter seat is provided with an outer water injection hole communicated with the gap between the inner cutter tube and the outer cutter tube.

[0022] The outer cutter tube is provided with an outer arc-shaped section near the outer cutter head, the inner cutter tube is provided with an inner arc-shaped section near the inner cutter head, the outer arc-shaped section and the inner arc-shaped section are coincident in position and form the same section, and the inner arc-shaped section is a soft structure.

[0023] The inner arc-shaped section is a relief-shaped spiral spring tube formed by spirally winding, and adjacent spiral units of the relief-shaped spiral spring tube are embedded in a concave-convex matching mode.

[0024] Edge lines between adjacent spiral units of the relief-shaped spiral spring tube are rectangular or inverted trapezoidal relief lines embedded in each other.

[0025] The power switching mechanism provided by the application comprises a mounting seat, a driving interface assembly and a speed reducer assembly, the mounting seat comprises an integrally formed transverse support seat and a vertical mounting plate, the driving interface assembly is mounted on the vertical mounting plate, the speed reducer assembly is mounted on the transverse support seat and the vertical mounting plate, the driving interface assembly comprises an input shaft, and the input shaft is rotatably connected with the speed reducer assembly through the vertical mounting plate.

[0026] Further, the vertical mounting plate is provided with a first mounting hole, the driving interface assembly further comprises a driving pipe, and the driving pipe is fixedly arranged in the first mounting hole; one end of the driving pipe close to the vertical mounting plate is provided with a first bearing, the driving pipe is provided with a first stepped hole, the input shaft passes through the inner ring of the first bearing and the first stepped hole and is fixedly connected with the first bearing, and one end of the input shaft away from the vertical mounting plate is fixedly connected with a shift fork joint.

[0027] The end of the shift fork joint away from the vertical mounting plate is a male head.

[0028] Further, the speed reducer assembly comprises a driving gear fixedly installed on the input shaft, a double gear installed on the vertical installation plate and rotating, a large gear of the double gear meshing with the driving gear, a small gear of the double gear meshing with a driven gear, the number of teeth of the large gear of the double gear being greater than the number of teeth of the driving gear, and the number of teeth of the driven gear being greater than the number of teeth of the small gear of the double gear;

[0029] A pin shaft hole is formed on the vertical installation plate, the pin shaft hole is rotationally connected with a pin shaft, and the double gear is fixedly installed on the pin shaft; a through hole is formed on the transverse support base, a gear adapter pipe is arranged in the through hole, the driven gear is fixedly installed on the gear adapter pipe, a second bearing is arranged outside the gear adapter pipe, and a gear sleeve is arranged between the second bearing and the gear adapter pipe.

[0030] According to the knife structure for orthopedic surgery, the two or more suction holes are circumferentially arranged on the connecting pipe or the inner knife pipe.

[0031] Further, all the suction holes are arranged on the connecting pipe.

[0032] The number of the suction holes is two, the two suction holes are symmetrically arranged relative to the middle plane of the connecting pipe, and the size and shape of the two suction holes are the same.

[0033] The outer knife pipe is provided with an adapter sleeve at the end away from the knife head assembly, the adapter sleeve comprises a stepped hole arranged at the end close to the knife head assembly and a mounting hole arranged at the other end, the stepped hole is in communication with the mounting hole, the outer wall of the outer knife pipe at the end away from the knife head assembly is fixedly connected with the inner wall of the large hole of the stepped hole, and the end of the inner knife pipe away from the knife head assembly sequentially penetrates the outer knife pipe and the mounting hole.

[0034] The mounting hole is fixedly installed with a bearing, the end of the inner knife pipe away from the knife head assembly is fixedly arranged on the inner ring of the bearing, and the outer ring of the bearing is fixedly connected with the inside of the mounting hole.

[0035] A sealing member is arranged between the bearing and the bottom of the mounting hole, and the end of the inner knife pipe away from the knife head assembly penetrates the sealing member.

[0036] The knife head body comprises one of a grinding head, a drill bit, a planer head, a milling cutter head and a bone saw.

[0037] The tool head body is a grinding head, and the outer tool tube is provided with a sheath sleeve near one end of the tool head assembly, which is used for wrapping part of the grinding head.

[0038] Further, a reduced-diameter rod is arranged on the part of the connecting pipe away from the tool head body, and the reduced-diameter rod is fixedly arranged on the inner tool tube near one end of the tool head assembly.

[0039] According to the application, a drive handle is provided, which comprises a shell, a motor, a Hall plate and a cable. The motor comprises a rotor and a stator, the rotor is arranged to rotate in the stator, and the head of the rotor is provided with an output shaft. The handle further comprises a first mounting seat and a second mounting seat arranged in the shell. One end of the cable is electrically connected with a handle male head assembly, and the other end of the cable is electrically connected with the motor and the Hall plate through the first mounting seat. The second mounting seat is sleeved on the motor. The tail of the rotor is provided with a Hall magnet and a motor plug cover. The Hall magnet is arranged to match the Hall plate. The Hall plate is arranged between the first mounting seat and the motor plug cover. The first mounting seat and the motor plug cover are filled with sealing glue.

[0040] Further, a cable sleeve is sleeved on the part of the cable away from the handle male head assembly. A pressing sleeve is fixedly sleeved on the cable sleeve. The pressing sleeve is provided with a first through hole. A first threaded hole is formed in one end of the shell near the pressing sleeve. A first screw is threadedly connected in the first through hole and the first threaded hole. An end of the cable sleeved in the first mounting seat is sleeved with a locking sleeve. The locking sleeve is a cylindrical shape with an opening. One end of the cable sleeve away from the handle male head assembly is provided with a stepped hole. The end of the locking sleeve abuts against the stepped hole. A second threaded hole is formed in the shell and penetrates the locking sleeve. A second screw is threadedly connected in the second threaded hole. The end of the second screw abuts against the locking sleeve.

[0041] The shell comprises a front body and a rear body fixedly connected. The motor is arranged in the rear body. The front body is provided with a switch button. The switch button is electrically connected with the cable, the motor and the Hall plate.

[0042] The front body is provided with an identification circuit board. The identification circuit board is in communication connection with the cable.

[0043] The end of the second mounting seat near the first mounting seat is provided with a support pipe. The support pipe is arranged between the second mounting seat and the Hall plate.

[0044] The output shaft is a female joint. A shaft sleeve is sleeved on the female joint. A hole bushing is arranged outside the shaft sleeve. The front body is axially provided with a mounting hole. The hole bushing is fixedly installed in the mounting hole.

[0045] A heat dissipation sleeve is arranged between the motor and the rear body. The heat dissipation sleeve is located between the second mounting seat and the front body.

[0046] The Hall magnet is sleeved with a Hall protection tube;

[0047] The first mounting seat is provided with a glue injection window and a plurality of glue drying through holes in the circumferential direction;

[0048] The Hall plate is provided with a plurality of protrusions in the circumferential direction, and the first mounting seat and the second mounting seat are respectively provided with a first groove and a second groove matched with the protrusions, and the protrusions are clamped in the first groove and the second groove.

[0049] According to the application, a split type surgical instrument transmission connection structure is provided, which comprises a driving interface component arranged on a power assembly and a driven interface component arranged on a surgical assembly, the power assembly comprises a motor, the driving interface component comprises an output connector arranged on an output shaft of the motor, the driven interface assembly comprises an input connector matched with the output connector, the driven interface component further comprises an input shaft and a driving pipe, the input shaft is arranged in the driving pipe, the input connector is fixedly installed on the end of the input shaft close to the output connector, and an elastic member is arranged between the input connector and the end of the driving pipe away from the output connector.

[0050] Further, the end of the driving pipe away from the output connector is provided with a mounting hole, a bearing is fixedly installed in the mounting hole, the input shaft is slidably arranged in the bearing, one end of the elastic member abuts against the bearing, and the other end of the elastic member abuts against the input connector;

[0051] The elastic member is a spring, the spring is sleeved on the input shaft, one end of the spring abuts against the bearing, and the other end of the spring abuts against the input connector;

[0052] The output connector is a female connector, and the input connector is a male connector;

[0053] The output connector is provided with a strip-shaped groove, the bottom of the strip-shaped groove is provided with a V-shaped groove, the end of the input connector is provided with a flat square structure matched with the strip-shaped groove, and the end of the flat square structure is provided with a V-shaped protrusion matched with the V-shaped groove;

[0054] The end of the input connector away from the flat square structure is provided with a blind hole, and the input connector is fixedly sleeved on the input shaft through the blind hole;

[0055] The end of the output connector is provided with a first inclined surface inclined into the strip-shaped groove, and the end of the input connector is provided with a second inclined surface with an outer short and an inner long;

[0056] The output connector is sleeved with a shaft sleeve, and the shaft sleeve is provided with a hole bushing outside, and when butted, the hole bushing is sleeved on the driving pipe in a sliding mode.

[0057] Compared with the prior art, the present application has the following beneficial effects:

[0058] The present application is provided with a bendable single buckle structure on the inner cutter tube, when the inner cutter head and the outer cutter head are stuck, the single buckle structure can be slightly bent, so as to solve the sticking problem, so that the inner cutter head can rotate continuously for planing operation, avoiding the problem that the inner cutter tube is easy to slightly swing and bend in actual operation, so that the inner cutter head is not straight, and then the inner cutter head and the outer cutter head are stuck, affecting the normal operation of the operation.

[0059] The present application is provided with an outer arc segment on the part of the outer cutter tube close to the outer cutter head, and an inner arc segment on the part of the inner cutter tube close to the inner cutter head, the inner arc segment is a soft structure which can transmit torque, so that the inner cutter tube drives the inner cutter head to rotate; during operation, the cutter head part of the present application is curved, which can adapt to different angle environment operation, has wider application range, and operation is more convenient.

[0060] The present application is provided with an outer arc segment on the part of the outer cutter tube close to the outer cutter head, and an inner arc segment on the part of the inner cutter tube close to the inner cutter head, the inner arc segment is a soft structure which can transmit torque, so that the inner cutter tube drives the inner cutter head to rotate; during operation, the cutter head part of the present application is curved, which can adapt to different angle environment operation, has wider application range, and operation is more convenient.

[0061] The present application is provided with an outer arc segment on the part of the outer cutter tube close to the outer cutter head, and an inner arc segment on the part of the inner cutter tube close to the inner cutter head, the inner arc segment is a soft structure which can transmit torque, so that the inner cutter tube drives the inner cutter head to rotate; during operation, the cutter head part of the present application is curved, which can adapt to different angle environment operation, has wider application range, and operation is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0062] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments, with reference to the attached drawings:

[0063] Fig. 1 is a structure schematic view of a straight planing cutter head of the present application;

[0064] Fig. 2 is an exploded view of Fig. 1;

[0065] Fig. 3 is a partial enlarged structure schematic view of A in Fig. 2;

[0066] Fig. 4 is a cross-sectional structure schematic view of Fig. 1;

[0067] Fig. 5 is a partial enlarged structural schematic view of Fig. 4 at B;

[0068] Fig. 6 is a structural schematic view of the outer tool holder of Fig. 2;

[0069] Fig. 7 is a structural schematic view of the inner tool holder of Fig. 2;

[0070] Fig. 8 is a structural schematic view of the inner tool head of Fig. 2;

[0071] Fig. 9 is a structural schematic view of a water injection planing tool head of the present application;

[0072] Fig. 10 is an exploded view of Fig. 9;

[0073] Fig. 11 is a cross-sectional structural schematic view of Fig. 9;

[0074] Fig. 12 is a partial enlarged structural schematic view of Fig. 11 at A;

[0075] Fig. 13 is a partial enlarged structural schematic view of Fig. 11 at B;

[0076] Fig. 14 is a structural schematic view of the inner tool holder of Fig. 10;

[0077] Fig. 15 is a structural schematic view of the inner tool head of Fig. 10;

[0078] Fig. 16 is a cross-sectional structural schematic view of a power transfer mechanism for making reciprocating rotary motion;

[0079] Fig. 17 is an enlarged structural schematic view of Fig. 16 at A;

[0080] Fig. 18 is an enlarged structural schematic view of the reciprocating sleeve;

[0081] Fig. 19 is an enlarged structural schematic view of the steel ball cover;

[0082] Fig. 20 is an enlarged structural schematic view of the connecting main shaft;

[0083] Fig. 21 is an enlarged structural schematic view of the triple gear;

[0084] Fig. 22 is an enlarged structural schematic view of the speed reducer;

[0085] Fig. 23 is a cross-sectional structural schematic view of a rotary cutting tool;

[0086] Fig. 24 is an exploded structural schematic view of the rotary cutting tool;

[0087] Fig. 25 is a structural schematic view of the rotary cutting tool;

[0088] Fig. 26 is a structural schematic view of a split planing tool power transfer mechanism of the present application;

[0089] Figure 27 is a disassembly diagram of Figure 26;

[0090] Figure 28 is a schematic diagram of the cross-sectional structure of Figure 26;

[0091] Figure 29 is a schematic diagram of the mounting base in Figure 27;

[0092] Figure 30 is a schematic diagram of the input shaft and shift fork joint in Figure 27;

[0093] Figure 31 is a structural schematic diagram of a split-type planer according to the present invention;

[0094] Figure 32 is a disassembly diagram of Figure 31;

[0095] Figure 33 is a schematic diagram of the cross-sectional structure of Figure 31;

[0096] Figure 34 is a magnified view of the local structure at point A in Figure 33;

[0097] Figure 35 is a magnified view of the local structure at point B in Figure 33;

[0098] Figure 36 is a schematic diagram of the front adapter sleeve in Figure 32;

[0099] Figure 37 is a schematic diagram of the rear shell structure in Figure 32;

[0100] Figure 38 is a schematic diagram of the structure of the regulating valve in Figure 32.

[0101] Figure 39 is a three-dimensional structural schematic diagram of an orthopedic surgical instrument according to the present invention;

[0102] Figure 40 is an exploded view of Figure 39;

[0103] Figure 41 is a schematic diagram of the cross-sectional structure of Figure 39;

[0104] Figure 42 is a magnified view of part A in Figure 41;

[0105] Figure 43 is a schematic diagram of the cutter head assembly in Figure 40;

[0106] Figure 44 is a cross-sectional view of the planing cutter head and the power transfer mechanism;

[0107] Figure 45 is an exploded view of the planing cutter head and the power transfer mechanism;

[0108] Figure 46 is a partial enlarged view of the power transfer mechanism;

[0109] Figure 47 is a schematic diagram of the structure of a surgical drive handle according to the present invention;

[0110] Figure 48 is an exploded view of Figure 47;

[0111] Figure 49 is a schematic diagram of the cross-sectional structure of Figure 47;

[0112] Fig. 50 is a partially enlarged structural schematic view of A in Fig. 49;

[0113] Fig. 51 is a partially enlarged structural schematic view of B in Fig. 49;

[0114] Fig. 52 is a structural schematic view of a first mounting seat in Fig. 48;

[0115] Fig. 53 is a structural schematic view of a second mounting seat in Fig. 48;

[0116] Fig. 54 is a structural schematic view of a Hall plate in Fig. 48;

[0117] Fig. 55 is a structural schematic view of a locking sleeve in Fig. 48

[0118] Fig. 56 is a structural schematic view of a normal docking of a split type surgical instrument transmission connection structure;

[0119] Fig. 57 is a structural schematic view of an abnormal docking of a split type surgical instrument transmission connection structure;

[0120] Fig. 58 is a structural schematic view of a driven interface component in Fig. 56;

[0121] Fig. 59 is a partially enlarged view of an output joint in Fig. 56;

[0122] Fig. 60 is a structural schematic view of an input joint in Fig. 56;

[0123] Wherein, the inner cutter tube 101, the inner cutter head 102, the outer cutter tube 103, the outer cutter head 104, the tooth blade 105, the flat structure 106, the outer cutter seat 107, the inner cutter seat 108, the single buckle structure 109, the first stepped hole 1010, the water flow channel 1011, the water injection hole 1012, the first sealing ring 1013, the blocking sleeve 1014, the second stepped hole 1015, the spring 1016, the second sealing ring 1017, the liner 1018, the annular groove 1019, the third sealing ring 1020; the inner cutter tube 201, the inner cutter head 202, the outer cutter tube 203, the outer cutter head 204, the planing window 205, the tooth blade 206, the outer cutter seat 207, the inner cutter seat 208, the outer water injection hole 209, the first stepped hole 2010, the water flow channel 2011, the first sealing ring 2012, the blocking sleeve 2013, the second stepped hole 2014, the elastic member 2015, the second sealing ring 2016, the liner 2017, the sealing clamping groove 2018, the third sealing ring 2019, the outer arc segment 2020, the inner arc segment 2021, the undulating spiral line 2022; the inner cutter tube 30110, the inner cutter head 30111, the outer cutter tube 30120, the outer cutter head 30121, the rotary cutting window 301211, the reciprocating moving sleeve 30200, the square hole 30210, the spiral groove 30220, the steel ball cover 30310, the steel ball 30320, the conversion sleeve 30330, the connecting main shaft 30400, the square end 30410, the stepped hole 30420, the input shaft 30511, the driving gear 30512, the three-gear gear 30513, the left gear 305131, the intermediate gear 305132, the right gear 305133, the third hollow shaft 305134, the spring 30514, the fork joint 30515, the interface pipe 30516, the pin shaft 30517, the rotary drive assembly 30520, the second hollow shaft 30521, the second driven gear 30522, the reciprocating transmission assembly 30530, the first hollow shaft 30531, the first driven gear 30532, the shell 30600, the outer cutter seat 30610, the adapter sleeve 30620, the wear-resistant sleeve 30630, the reduction box 30700, the mounting plate 30710, the mounting seat 30720, the suction pipe 30900, the rotary valve 30910, the fixed clamping block 30920, the fixed pin 30930, the suction joint 30940, the sealing ring 30001, the bearing 30002; the transverse support seat 40101, the vertical mounting plate 40102, the input shaft 40103, the first mounting hole 40104, the pin shaft hole 40105, the screw hole 40106, the pin shaft 40107, the drive pipe 40108, the first bearing 40109, the first stepped hole 40110, the fork joint 40111, the driving gear 40112, the double-gear gear 40113, the driven gear 40114, the through hole 40115, the gear adapter pipe 40116, the second bearing 40117, the gear sleeve 40118;Shaving tool assembly 402, window structure 40201, tooth blade 40202, outer tube 40203, outer cutter head 40204, inner tube 40205, inner cutter head 40206, soft spring section 40207; front adapter sleeve 403, first sealing ring 40301, third bearing 40302, bushing 40303, water flow channel 40304, water injection hole 40305, water injection pipeline 40306, connector 40307, second sealing ring 40308; suction assembly 404, suction pipe 40401, regulating valve 40402, air vent hole 40403, accommodation slot 40404, handle block 40405; outer housing 405, front housing 40501, rear housing 40502, screw through hole 40503, water injection pipeline installation slot 40504, suction pipe installation slot 40505, electronic tag 40506; outer cutter tube 501, inner cutter tube 502, cutter head body 503, connecting tube 504, reduced diameter rod 505, suction hole 506, adapter sleeve 507, bearing 508, sealing element 509, sheath sleeve 5010; motor 601, Hall plate 602, cable 603, switch key 604, front body 605, rear body 606, identification circuit board 607, output shaft 608, first mounting seat 609, second mounting seat 6010, glue injection window 6011, glue dry through hole 6012, handle male head assembly 6013, motor plug cover 6014, Hall protection tube 6015, support tube 6016, cable sleeve 6017, pressing sleeve 6018, first screw 6019, locking sleeve 6020, stepped hole 6021, second screw 6022, shaft sleeve 6023, hole bushing 6024, heat sink 6025, protrusion 6026, first groove 6027, second groove 6028; motor 701, output connector 702, input connector 703, input shaft 704, drive tube 705, bearing 706, spring 707, shaft sleeve 708, hole bushing 709, strip-shaped groove 7010, V-shaped groove 7011, flat square structure 7012, V-shaped protrusion 7013, first inclined surface 7014, second inclined surface 7015. DETAILED DESCRIPTION

[0124] The application will be described in detail below with specific embodiments. The following embodiments will help those skilled in the art to further understand the application, but do not limit the application in any form. It should be noted that for those skilled in the art, without departing from the concept of the application, a number of changes and improvements can be made. These all belong to the protection scope of the application.

[0125] As shown in FIG. 43 and FIG. 44, a surgical tool includes a split planing tool and a driving handle, the split planing tool includes a planing head 1 and a power transfer mechanism 2, the planing head 1 is connected to the power transfer mechanism 2, and the driving handle (not shown in the figure, and the specific structure can be referred to the embodiment of the driving handle) is detachably connected to the power transfer mechanism 2, and the driving handle drives the planing head 1 through the power transfer mechanism 2.

[0126] The tool assembly includes an inner tool assembly, an outer tool assembly, a power transfer mechanism and a suction pipeline, the outer tool assembly is sleeved on the inner tool assembly, the inner tool assembly is in communication with the suction pipeline, a gear is sleeved on the inner tool assembly, the output end of the driving handle can be clamped to the input shaft, the gear set of the power transfer mechanism is driven through the input shaft, the gear set drives the gear, thereby driving the inner tool assembly to move. In the state that the driving handle is connected to the tool assembly, the driving handle is in contact with the suction pipeline, and the driving handle is cooled through the suction pipeline.

[0127] As shown in FIG. 45, in the embodiment, the connecting pipe 12 is connected with the driven gear 8 through the sleeve 13, and the connecting pipe 12 is connected with the mounting seat 14 of the power transfer mechanism through a single bearing 9 arranged on the sleeve 13, and a plurality of bearings can also be used for connection. The bearing 9 and the driven gear 8 can also be provided with a sealing ring 10 and a sealing ring 11 at the positions of the two dashed lines. The water injection pipe 15 is connected with the planing head 1 through the adapter 16, or the planing head 1 can also be directly connected with the water injection pipe 15.

[0128] As shown in FIG. 43, the end of the power transfer mechanism is provided with a clamping structure 4, which is clamped with the clamping structure at the corresponding position of the driving handle. The end of the power transfer mechanism is also provided with a suction pipe fixing structure, which includes a metal fixing sheet 6 arranged between the suction pipe and the housing of the power transfer mechanism, and the suction pipe 7 is fixed axially and radially through the metal fixing sheet 6.

[0129] As shown in FIG. 1 to FIG. 8: the embodiment is a straight planing head, which includes an inner pipe component, an outer pipe component and a tool seat, the inner pipe component includes an inner tool pipe 101 and an inner tool head 102, the inner tool pipe 101 is in fixed communication with the inner tool head 102 by welding; the outer pipe component includes an outer tool pipe 103 and an outer tool head 104, the outer tool pipe 103 is in fixed communication with the outer tool head 104 by welding; the inner tool head 102 is rotatably arranged in the outer tool head 104, and the inner tool pipe 101 is rotatably arranged in the outer tool pipe 103; as shown in FIG. 8, the inner tool head 102 and the outer tool head 104 are both provided with window structures, in order to make the inner tool head 102 and the outer tool head 104 more sharp during rotation planing, a plurality of toothed edges 105 are arranged on the edges of the window structures of the inner tool head 102 and the outer tool head 104; a flat structure 106 is arranged on the same side of the window structure of the inner tool head 102, so that there is a large water outlet between the outer tool head 104 and the inner tool head 102.

[0130] As shown in FIGS. 4-7, the knife seat includes an outer knife seat 107 and an inner knife seat 108, the inner knife seat 108 is rotationally connected with the outer knife seat 107, the outer knife tube 103 is fixedly connected with the outer knife seat 107, the inner knife tube 101 is fixedly connected with the inner knife seat 108, and a bendable structure is arranged on the left side of the inner knife tube 101. As shown in FIGS. 2 and 3, the bendable structure of the present embodiment is a single buckle structure 109, which is a structure of mutual embedding in a concave-convex matching manner between adjacent inner knife tubes 101, and the single buckle structure 109 can be formed by laser cutting processing.

[0131] Specifically, as shown in FIGS. 4-7, the outer knife seat 107 is axially provided with a first stepped hole 1010, the right end of the outer knife tube 103 is fixedly connected to the inner wall of the small hole of the first stepped hole 1010, and the left end of the inner knife seat 108 is rotationally arranged on the inner wall of the large hole of the first stepped hole 1010; the small hole of the first stepped hole 1010 and the outer wall of the inner knife tube 101 have a water flow channel 1011, the outer knife seat 107 is provided with a water injection hole 1012 that penetrates from the outside to the water flow channel 1011, the outer knife tube 103 and the inner knife tube 101 have a gap, the water flow channel 1011 is in communication with the gap between the outer knife tube 103 and the inner knife tube 101, and the bottom of the large hole of the first stepped hole 1010 is provided with a first sealing ring 1013, which is a lip-shaped sealing ring in the present embodiment, and the inner knife tube 101 passes through the lip-shaped sealing ring. In practice, the first sealing ring 1013 can also be an O-shaped sealing ring. The inner wall of the large hole of the first stepped hole 1010 is fixedly provided with a retainer 1014, and the two ends of the lip-shaped sealing ring abut against the bottom of the large hole of the first stepped hole 1010 and the end of the retainer 1014, respectively.

[0132] The inner knife seat 108 is axially provided with a second stepped hole 1015, the large hole of the second stepped hole 1015 is provided with an elastic member and a second sealing ring 1017, the elastic member of the present embodiment is a spring 1016, and in practice, the elastic member can also be, for example, a rubber ring with elasticity, etc. The left end of the spring 1016 abuts against the bottom of the large hole of the second stepped hole 1015, and the right end of the spring 1016 abuts against the second sealing ring 1017; the right end of the inner knife tube 101 is sleeved with a liner tube 1018, the left end of the liner tube 1018 is rotationally arranged in the inner ring of the lip-shaped sealing ring, the right end of the liner tube 1018 sequentially passes through the small hole of the second stepped hole 1015, the spring 1016 and the second sealing ring 1017, and is fixedly arranged on the inner ring of the second sealing ring 1017. The outer wall of the outer knife seat 107 on both sides of the water injection hole 1012 is provided with an annular groove 1019, and the annular groove 1019 is provided with a third sealing ring 1020.

[0133] In use, power is transmitted from the inner cutter seat 108 to the liner tube 1018 through the outer handle connected therewith, the liner tube 1018 is connected with the inner cutter tube 101, the inner cutter tube 101 is connected with the inner cutter head 102, and the rotation of the inner cutter head 102 is realized, and the inner cutter head 102 cooperates with the outer cutter head 104 to perform planing.

[0134] During the planing process, water can be injected from the water injection hole 1012 through the external handle, and the injected water enters the water flow channel 1011, and then enters the gap between the outer cutter tube 103 and the inner cutter tube 101, and then flows out from the water outlet of the flat structure 106 of the inner cutter head 102, and then wets and cools the cutter head; when the outer cutter head 104 and the inner cutter head 102 cut soft tissue, the soft tissue is cut and enters the pipeline of the inner cutter tube 101 together with the water, and the handle connected with the outer cutter tube 101 is generally connected with a negative pressure suction device, and under the suction of the negative pressure, the mixture of the soft tissue and the water is brought out through the pipeline of the inner cutter tube 101. In this process, because the soft tissue is diluted by water, it is not easy to block the pipeline of the inner cutter tube 101, so that the operation can be smoothly carried out.

[0135] If the inner cutter head 102 and the outer cutter head 104 are stuck, because the inner cutter tube 101 is provided with a bendable single clamping structure 109, slight bending can occur at the single clamping structure 109, so that the inner cutter head 102 can continuously rotate for planing operation, avoiding the problem that in actual operation, the inner cutter tube 101 is easily bent slightly, so that the inner cutter head 102 is not straight, and then the inner cutter head 102 and the outer cutter head 104 are stuck, affecting the normal operation of the operation.

[0136] The straight planing cutter head is connected with the planer handle through the inner cutter seat 108 to form a split planer.

[0137] As shown in FIGS. 9-15: the embodiment is a water injection planing cutter head, which comprises an inner cutter tube 201, an inner cutter head 202, an outer cutter tube 203, an outer cutter head 204 and a cutter seat, the inner cutter tube 201 is fixedly communicated with the inner cutter head 202, the outer cutter tube 203 is fixedly communicated with the outer cutter head 204, the inner cutter head 202 and the outer cutter head 204, the inner cutter tube 201 and the outer cutter tube 203 all have gaps communicated with each other, the inner cutter head 202 and the outer cutter head 204 are both provided with planing windows 205, and the edges of the planing windows 205 are both provided with toothed edges 206; the cutter seat comprises an outer cutter seat 207 and an inner cutter seat 208, the outer cutter tube 203 is fixedly connected with the outer cutter seat 207, the inner cutter tube 201 is fixedly connected with the inner cutter seat 208, the inner cutter seat 208 is rotatably connected with the outer cutter seat 207, and the outer cutter seat 207 is provided with an outer water injection hole 209 communicated with the gap between the inner cutter tube 201 and the outer cutter tube 203.

[0138] The first stepped hole 2010 is axially and throughly arranged on the outer cutter seat 207, the outer cutter tube 203 is fixedly connected on the inner wall of the small hole of the first stepped hole 2010 at the end away from the outer cutter head 204, and the inner cutter seat 208 is rotatably arranged on the inner wall of the large hole of the first stepped hole 2010; the small hole of the first stepped hole 2010 and the outer wall of the inner cutter tube 201 have a water flow channel 2011, the outer water injection hole 209 is throughly arranged from the outer to the water flow channel 2011, the water flow channel 2011 is communicated with the gap between the outer cutter tube 203 and the inner cutter tube 201, the large hole of the first stepped hole 2010 is provided with a first sealing ring 2012 at the bottom, the inner cutter tube 201 passes through the first sealing ring 2012, the inner wall of the large hole of the first stepped hole 2010 is fixedly provided with a baffle 2013, the two ends of the first sealing ring 2012 are respectively abutted with the bottom of the large hole of the first stepped hole 2010 and the end of the baffle 2013, and the first sealing ring 2012 is a lip-shaped sealing ring in the embodiment, and in actual use, it can also be an O-shaped sealing ring or the like which can play a sealing role.

[0139] The second stepped hole 2014 is axially and throughly arranged on the inner cutter seat 208, the large hole of the second stepped hole 2014 is provided with an elastic member 2015 and a second sealing ring 2016, one end of the elastic member 2015 is abutted with the bottom of the large hole of the second stepped hole 2014, and the other end of the elastic member 2015 is abutted with the second sealing ring 2016; the end of the inner cutter tube 201 away from the inner cutter head 202 is sleeved with a liner tube 2017, one end of the liner tube 2017 is rotatably arranged on the inner ring of the first sealing ring 2012, the other end of the liner tube 2017 passes through the small hole of the second stepped hole 2014, the elastic member 2015 and the second sealing ring 2016 in sequence, and is fixedly arranged on the inner ring of the second sealing ring 2016. The elastic member 2015 is preferably a spring in the embodiment, and in actual use, it can also be a rubber ring or the like which has elasticity. The outer wall of the outer cutter seat 207 on both sides of the outer water injection hole 209 is provided with a sealing clamping groove 2018, and the sealing clamping groove 2018 is provided with a third sealing ring 2019.

[0140] The outer arc-shaped section 2020 is arranged on the part of the outer cutter tube 203 close to the outer cutter head 204, the inner arc-shaped section 2021 is arranged on the part of the inner cutter tube 201 close to the inner cutter head 202, the outer arc-shaped section 2020 and the inner arc-shaped section 2021 coincide in position and form the same section, the inner arc-shaped section 2021 is a spring tube of the undulating spiral line 2022 formed by spirally winding, the adjacent spiral units of the spring tube of the undulating spiral line 2022 are embedded in each other in a concave-convex matching mode, the edge lines between the adjacent spiral units of the spring tube of the undulating spiral line 2022 are rectangular or inverted trapezoidal undulating lines embedded in each other, and in the embodiment, the edge lines are inverted trapezoidal undulating lines formed by laser cutting.

[0141] In use, power is transmitted from the inner cutter seat 208 to the bushing 2017 through the handle connected thereto, the bushing 2017 is connected with the inner cutter tube 201, the inner cutter tube 201 is connected with the inner cutter head 202, the rotation of the inner cutter head 202 is realized, and the inner cutter head 202 cooperates with the outer cutter head 204 to perform planing. Because the planer cutter head of the embodiment is provided with an outer arc segment 2020 on the part of the outer cutter tube 203 close to the outer cutter head 204, and the inner cutter tube 201 is provided with an inner arc segment 2021 on the part close to the inner cutter head 202, the inner arc segment 2021 is a soft structure which can transmit torque, so that the inner cutter tube 201 drives the inner cutter head 202 to rotate; during the operation, the cutter head part of the water injection planer is curved, which can adapt to different angle environment operations, has a wider use range, and the operation is more convenient.

[0142] During the planing process, the outer water injection can inject water from the outer water injection hole 209 through the external handle, the injected water enters the water flow channel 2011, and then enters the gap between the outer cutter tube 203 and the inner cutter tube 201, and then flows out from the water outlet of the flat structure of the inner cutter head 202, thereby wetting and cooling the cutter head; when the outer cutter head 204 and the inner cutter head 202 cut soft tissue, the soft tissue is cut and enters the pipeline of the inner cutter tube 201 together with the water, and the handle connected with the outer cutter tube 201 is generally connected with a negative pressure suction device, under the suction of the negative pressure, the mixture of soft tissue and water is then taken out through the pipeline of the inner cutter tube 201, in this process, because the soft tissue is diluted by water, it is not easy to block the pipeline of the inner cutter tube 201, so that the operation is smooth and the operation efficiency is improved.

[0143] The water injection planer cutter head is connected with the planer handle through the inner cutter seat 208, and constitutes a split type planer.

[0144] Please refer to FIGS. 16-25, the embodiment discloses a power transmission mechanism for reciprocating rotary motion, which is used for installing and powering a cutter assembly, the cutter assembly comprising an inner cutter tube 30110 and an outer cutter tube 30120, the inner cutter tube 30110 being capable of reciprocating rotary motion in the outer cutter tube 30120. The power transmission mechanism of the embodiment comprises a reciprocating moving sleeve 30200, a reciprocating driving assembly, a connecting main shaft 30400 and a power transmission assembly, the reciprocating moving sleeve 30200 being used for fixed connection with the inner cutter tube 30110. The reciprocating driving assembly is used for driving the reciprocating moving sleeve 30200 to reciprocate, and the reciprocating driving assembly is installed on the reciprocating moving sleeve 30200. The connecting main shaft 30400 is used for driving the reciprocating moving sleeve 30200 to rotate, the reciprocating moving sleeve 30200 being slidingly sleeved on the connecting main shaft 30400, and the inner cutter tube 30110 being slidingly inserted into the connecting main shaft 30400. The power transmission assembly is used for driving the connecting main shaft 30400 and the reciprocating driving assembly to rotate, and the power transmission assembly comprises a power input assembly, a rotary driving assembly 30520 and a reciprocating transmission assembly 30530, both the rotary driving assembly 30520 and the reciprocating transmission assembly 30530 being in transmission connection with the power input assembly, the rotary driving assembly 30520 being used for driving the connecting main shaft 30400 to rotate, and the reciprocating transmission assembly 30530 being used for driving the reciprocating driving assembly to rotate.

[0145] In the embodiment, please refer to FIG. 20, one end of the connecting main shaft 30400 is a square end 30410, the outer contour of the square end 30410 is square, the reciprocating moving sleeve 30200 has a square hole 30210 in the inside, the square end 30410 is matched with the square hole 30210, the square end 30410 of the connecting main shaft 30400 is inserted into the square hole 30210, and the reciprocating moving sleeve 30200 is slidingly sleeved on the square end 30410 through the square hole 30210. Inserting the square end 30410 of the connecting main shaft 30400 into the square hole 30210 can transmit the rotary motion of the connecting main shaft 30400 to the reciprocating moving sleeve 30200, that is, when the connecting main shaft 30400 rotates, the reciprocating moving sleeve 30200 will also rotate. The connecting main shaft 30400 is a tubular structure with an inside hollow, in order to realize the matched connection between the connecting main shaft 30400 and the inner cutter tube 30110, the inside of the connecting main shaft 30400 has a stepped hole 30420, the stepped hole 30420 being used for inserting the inner cutter tube 30110, and a sealing ring 30001 being installed on the hole wall of the stepped hole 30420, the sealing ring 30001 being located at one end of the connecting main shaft 30400 in contact with the inner cutter tube 30110. After the connecting main shaft 30400 connects the inner cutter tube 30110, the inner cutter tube 30110 can reciprocate in the connecting main shaft 30400.

[0146] In the embodiment, the reciprocating driving assembly includes a steel ball cover 30310, a steel ball 30320, and a conversion sleeve 30330. The reciprocating moving sleeve 30200 is located in the steel ball cover 30310 and performs reciprocating rotation in the steel ball cover 30310. The conversion sleeve 30330 is fixedly sleeved on the reciprocating transmission assembly 30530 and is fixedly inserted into the inside of one end of the steel ball cover 30310. The steel ball 30320 is installed on the steel ball cover 30310. The conversion sleeve 30330 rotates to drive the steel ball cover 30310 to rotate, thereby driving the steel ball 30320 to slide on the reciprocating moving sleeve 30200 to realize the reciprocating movement of the reciprocating moving sleeve 30200. Specifically, the outer wall of the reciprocating moving sleeve 30200 has an inclined spiral groove 30220. The spiral groove 30220 is inclined along the axial direction of the reciprocating moving sleeve 30200. The steel ball 30320 is slidingly arranged in the spiral groove 30220. The steel ball 30320 slides in the spiral groove 30220 to drive the reciprocating moving sleeve 30200 to reciprocate.

[0147] In the embodiment, the reciprocating transmission assembly 30530 includes a first hollow rotating shaft 30531 and a first driven gear 30532. The first driven gear 30532 is fixed on the first hollow rotating shaft 30531. The conversion sleeve 30330 is fixedly sleeved on the first hollow rotating shaft 30531. The first hollow rotating shaft 30531 is rotatably sleeved on the connecting main shaft 30400. The rotary driving assembly 30520 includes a second hollow rotating shaft 30521 and a second driven gear 30522. The second driven gear 30522 is fixed on the second hollow rotating shaft 30521. The second hollow rotating shaft 30521 is fixedly sleeved on the connecting main shaft 30400. The first hollow rotating shaft 30531 is rotatably sleeved on the connecting main shaft 30400, so that the reciprocating transmission assembly 30530 can perform rotary movement on the connecting main shaft 30400, but the rotary movement of the reciprocating transmission assembly 30530 does not drive the connecting main shaft 30400 to rotate. The second hollow rotating shaft 30521 is fixedly sleeved on the connecting main shaft 30400. The rotary driving assembly drives the connecting main shaft 30400 to rotate.

[0148] In the embodiment, the power input assembly comprises an input shaft 30511, a driving gear 30512 and a triple gear 30513, the driving gear 30512 is fixedly installed on one end of the input shaft 30511. Please refer to FIG. 21, the triple gear 30513 comprises coaxially arranged left gear 305131, middle gear 305132 and right gear 305133, the left gear 305131 is engaged with the first driven gear 30532, the middle gear 305132 is engaged with the driving gear 30512, and the right gear 305133 is engaged with the second driven gear 30522. In order to make the rotation speed of the first driven gear 30532 and the second driven gear 30522 inconsistent when they rotate at the same time, and then make the rotation speed of the reciprocating sleeve 30200 and the steel ball cover 30310 inconsistent, forming differential speed, the number of teeth of the left gear 305131 is less than the number of teeth of the right gear 305133, the number of teeth of the first driven gear 30532 and the second driven gear 30522 is the same, and the number of teeth of the right gear 305133 is also less than the number of teeth of the second driven gear 30522. The number of teeth of the driving gear 30512 is less than the number of teeth of the middle gear 305132, so that the rotation number input from the input shaft 30511 is greater than the rotation speed of the first driven gear 30532 and the second driven gear 30522, achieving the purpose of speed reduction. Of course, the specific tooth ratio can be reasonably adjusted by those skilled in the art according to the actual situation, as long as the purpose of speed reduction can be achieved.

[0149] In the embodiment, the power switching mechanism further comprises a shell 30600 and a speed reducer 30700, the speed reducer 30700 is installed in the shell 30600, please refer to FIG. 22, the speed reducer 30700 comprises a mounting plate 30710 and a mounting seat 30720, the mounting plate 30710 is vertically installed on the mounting seat 30720, the input shaft 30511 passes through the mounting plate 30710 and the driving gear 30512 is installed on one side of the mounting plate 30710. The input shaft 30511 is sleeved with a spring 30514 on the other side of the mounting plate 30710, a yoke joint 30515 is installed on one end of the input shaft 30511 away from the driving gear 30512, the yoke joint 30515 has a male head matched with an external motor, the input shaft 30511 is sleeved with an interface pipe 30516, the spring 30514 is located in the interface pipe 30516, one end of the interface pipe 30516 is inserted into the mounting plate 30710, and a bearing 30002 is installed between the input shaft 30511 and the interface pipe 30516, the bearing 30002 is close to the mounting plate 30710.

[0150] The triple gear 30513 is mounted on the mounting plate 30710. Specifically, in the triple gear 30513, the left gear 305131, the middle gear 305132 and the right gear 305133 are coaxially fixed on the third hollow rotating shaft 305134, the third hollow rotating shaft 305134 is internally provided with a pin shaft, the third hollow rotating shaft 305134 is rotatably sleeved on the pin shaft 30517, and the pin shaft 30517 is fixedly mounted on the mounting plate 30710. The middle gear 305132 is engaged with the driving gear 30512, and under the rotation of the driving gear 30512, the middle gear 305132 rotates, thereby driving the third hollow rotating shaft to rotate, and further driving the left gear 305131 and the right gear 305133 to rotate. The reciprocating transmission assembly 30530 and the rotary driving assembly are both mounted in the mounting seat 30720 and are rotatably connected with the main shaft 30400 and mounted in the mounting seat 30720.

[0151] In the embodiment, the outer shell 30600 is inserted with an outer tool holder 30610 at one end away from the speed reducer 30700, the outer tool holder 30610 is mounted with an adapter sleeve 30620 outside the outer shell 30600, and the adapter sleeve 30620 is sleeved on the outer knife tube 30120. The reciprocating driving assembly is located in the outer tool holder 30610, and the wear-resistant sleeve 30630 is mounted between the outer tool holder 30610 and the steel ball cover 30310.

[0152] The connecting main shaft 30400 is connected with a suction pipe 30900, the suction pipe 30900 is inserted into the mounting seat 30720, and the inside of the connecting main shaft 30400 communicates with the inside of the suction pipe 30900. When the connecting main shaft 30400 is connected with the inner knife tube 30110, the inside of the inner knife tube 30110 also communicates with the inside of the connecting main shaft 30400, so that the suction of the tissue and liquid cut at the operation site can be realized through the suction pipe 30900. A rotary valve 30910 is mounted on the pipeline connecting the connecting main shaft 30400 and the suction pipe 30900, which is used to control the opening and smoothness of the suction passage. A fixed clamping block 30920 is fixed between the suction pipe 30900 and the mounting seat 30720, and the fixed clamping block 30920 is fixed on the mounting seat 30720 through a fixed pin 30930. The fixed clamping block 30920 is used to limit the position of the suction pipe 30900. The other end of the suction pipe 30900 is connected with a suction connector 30940, which is used to connect with an external negative pressure device.

[0153] In the embodiment, bearings 30002 are mounted between the second hollow rotating shaft 30521 and the mounting seat 30720, and between the first hollow rotating shaft 30531 and the mounting seat 30720. A sealing ring 30001 is also mounted in the inside of the mounting seat 30720, and the sealing ring 30001 is located at one end of the connecting main shaft 30400.

[0154] The power switching mechanism of the embodiment, the input shaft 30511 is connected with the external motor through the fork joint, when the external motor is started, the input shaft 30511 rotates, drives the driving gear 30512 to rotate, the driving gear 30512 drives the three-gear 30513 to rotate, and then drives the first driven gear 30532 and the second driven gear 30522 to rotate under the rotation of the left gear 305131 and the right gear 305133 respectively, because the number of teeth of the left gear 305131 and the right gear 305133 is different, the number of teeth of the first driven gear 30532 and the second driven gear 30522 is the same, therefore, the rotating speed of the first hollow rotating shaft 30531 and the second hollow rotating shaft 30521 is necessarily different, and then the rotating speed of the steel ball cover 30310 and the connecting main shaft 30400 is also different, so that the steel ball cover 30310 and the connecting main shaft 30400 form differential speed. Under the setting of the square end 30410 of the connecting main shaft 30400, the connecting main shaft 30400 rotates to drive the reciprocating moving sleeve 30200 to rotate, and the steel ball cover 30310 rotates to drive the steel ball to slide in the spiral groove, and then drives the reciprocating moving sleeve 30200 to reciprocate, so as to realize the reciprocating rotating motion of the reciprocating moving sleeve 30200, and then realize the reciprocating rotating motion of the inner cutter tube 30110.

[0155] The power switching mechanism of the embodiment is simple in structure, convenient to use, and suitable for all cutters including the inner cutter tube 30110 and the outer cutter tube 30120, and the inner cutter tube 30110 needs to reciprocate in the outer cutter tube 30120, and the related surgical instruments are assembled and formed by the same.

[0156] A rotary cutter includes a power switching mechanism for reciprocating rotating motion and a cutter assembly. The cutter assembly includes an outer cutter tube 30120 and an inner cutter tube 30110, the inner cutter tube 30110 is arranged in the outer cutter tube 30120 and can reciprocate in the outer cutter tube 30120, the inner cutter tube 30110 is fixedly arranged in the reciprocating moving sleeve 30200, one end of the inner cutter tube 30110 is slidingly inserted into the connecting main shaft 30400, and the inner cutter tube 30110 communicates with the inside of the connecting main shaft 30400. One end of the outer cutter tube 30120 passes through the switching sleeve 30620 and is inserted into the outer cutter seat, and the switching sleeve 30620 is arranged on the outer cutter tube 30120. The other end of the inner cutter tube 30110 is connected with an inner cutter head 30111, the other end of the outer cutter tube 30120 is connected with an outer cutter head 30121, the outer cutter head 30121 has a rotary cutting window 301211, the inner cutter head 30111 is rotatably arranged in the inner part of the outer cutter head 30121 and located at a position corresponding to the rotary cutting window 301211. Under the action of the power switching mechanism, the inner cutter tube 30110 drives the inner cutter head 30111 to reciprocate in the outer cutter head 30121 to achieve the purpose of rotary cutting of tissues.

[0157] As shown in FIGS. 26-38, the present embodiment is a split type planer tool power transfer mechanism, which comprises a mounting seat, a driving interface assembly and a speed reducer assembly. The mounting seat comprises an integrally formed transverse support seat 40101 and a vertical mounting plate 40102. The driving interface assembly and the speed reducer assembly are mounted on the transverse support seat 40101 and the vertical mounting plate 40102. The driving interface assembly comprises an input shaft 40103, which is in transmission connection with the speed reducer assembly by rotating through the vertical mounting plate 40102. A spring can be added to the input shaft 40103 as shown in FIGS. 56, 57 and 58 and the corresponding textual content below, thereby achieving the corresponding technical effects.

[0158] Specifically, the vertical mounting plate 40102 is provided with a first mounting hole 40104, a pin shaft hole 40105 and two screw holes 40106. The screw holes 40106 are used to mount the vertical mounting plate 40102 on the rear shell 40502 by screws. The pin shaft hole 40105 is in rotational connection with a pin shaft 40107. The driving interface assembly further comprises a driving tube 40108, the left end of which is provided with a first bearing 40109. The driving tube 40108 is provided with a first stepped hole 40110 inside. The input shaft 40103 passes through the inner ring of the first bearing 40109 and the first stepped hole 40110 and is in interference fit connection with the first bearing 40109. The right end of the input shaft 40103 is fixedly connected with a yoke joint 40111. The left end of the yoke joint 40111 is fixedly sleeved on the end of the input shaft 40103. The right end of the yoke joint 40111 is a male head for cooperation with an external motor.

[0159] The speed reducer assembly in the present embodiment comprises a driving gear 40112, which is fixedly mounted on the input shaft 40103. A double gear 40113 is fixedly mounted on the pin shaft 40107. The large gear of the double gear 40113 is in mesh with the driving gear 40112. The small gear of the double gear 40113 is in mesh with a driven gear 40114. The number of teeth of the large gear of the double gear 40113 is greater than that of the driving gear 40112. The number of teeth of the driven gear 40114 is greater than that of the small gear of the double gear 40113. The specific tooth ratio can be adjusted by those skilled in the art according to the actual situation to achieve the purpose of speed reduction. In addition, it should be noted that the speed reducer assembly is not limited to the structure of the present embodiment. It can also be directly meshed with the driving gear 40112 and the driven gear 40114 in size. It can also adopt the way of belt pulley and belt transmission for speed reduction.

[0160] The transverse support base 40101 is provided with a through hole 40115, and a gear adapter pipe 40116 is arranged in the through hole 40115.

[0161] The use method of the utility model is as follows:

[0162] The through hole 40115 is used for mounting a front adapter sleeve 403 of a planer knife, a planer knife assembly 402 and the like, and the gear adapter pipe 40116 is used for connecting an inner pipe 40205 of the planer knife assembly 402. In use, a connector on an external motor is connected to the male head of the fork connector 40111, and the motor is started to drive the fork connector 40111, the input shaft 40103 and the driving gear 40112 to rotate in sequence. The driving gear 40112 drives the double gear 40113 to rotate, and the double gear 40113 drives the driven gear 40114 and the gear adapter pipe 40116 to rotate. Because the number of teeth of the large gear of the double gear 40113 is greater than the number of teeth of the driving gear 40112, and the number of teeth of the driven gear 40114 is greater than the number of teeth of the small gear of the double gear 40113, the rotation speed of the inner knife assembly is reduced. Because the input shaft 40103 and the speed reducer assembly are mounted on the integrally formed mounting seat, the machining is more convenient, the transmission precision is easier to control, the transmission is more stable, and the vibration of the planer knife during the operation is avoided to affect the operation effect.

[0163] The embodiment is a split type planer knife, which comprises the split type planer knife power adapter mechanism, the planer knife assembly 402, the front adapter sleeve 403, the suction assembly 404 and the outer shell 405. The suction assembly 404, the front adapter sleeve 403 and the mounting seat are mounted on the outer shell 405. The outer shell 405 comprises a front shell 40501 and a rear shell 40502 which is buckled to the front shell 40501. The left end of the front adapter sleeve 403 is fixedly arranged in the front shell 40501. The rear shell 40502 is provided with screw through holes 40503 which are matched with the two screw holes 40106 on the vertical mounting plate 40102, so that the vertical mounting plate 40102 is fixedly mounted on the rear shell 40502 by screws.

[0164] The planer tool assembly 402 comprises a hollow outer tool assembly and an inner tool assembly, the outer tool assembly comprises an outer tube 40203 and an outer tool head 40204 fixedly connected, the inner tool assembly comprises an inner tube 40205 and an inner tool head 40206 fixedly connected, the inner tool head 40206 is rotatably arranged in the outer tool head 40204, the inner tube 40205 is rotatably arranged in the outer tube 40203, and the left ends of the outer tool head 40204 and the inner tool head 40206 are each provided with a soft tissue inhalable window structure 40201. The outer tube 40203 and the inner tube 40205 are each provided with an arc-shaped section at the same position, and the arc-shaped section of the inner tube 40205 is a soft spring section 40207.

[0165] The front adapter sleeve 403 is provided with a second stepped hole composed of a first hole and a second hole, the diameter of the first hole is smaller than that of the second hole, the outer tube 40203 is fixedly installed in the first hole, the first sealing ring 40301 and the third bearing 40302 are arranged in the second hole, the bushing 40303 is arranged on the third bearing 40302, and the gear adapter pipe 40116 penetrates the bushing 40303 and the first sealing ring 40301; the water flow channel 40304 is formed between the inner wall of the first hole and the inner tube 40205, the water flow channel 40304 is communicated with the gap between the outer tube 40203 and the inner tube 40205, the front adapter sleeve 403 is provided with a water injection hole 40305 communicated with the water flow channel 40304, the water injection hole 40305 is communicated with the water injection pipeline 40306, and the right end of the water injection pipeline 40306 penetrates out of the shell body 405 and is connected with the connector 40307.

[0166] The through hole 40115 on the transverse support seat 40101 comprises a third hole, a fourth hole, a fifth hole, a sixth hole, a seventh hole and an eighth hole in sequence, the right of the front adapter sleeve 403 is fixedly installed in the third hole, and the connection is sealed to prevent water leakage; the second bearing 40117 is installed in the fourth hole, the gear sleeve 40118 is arranged on the driven gear 40114, and the gear sleeve 40118 is fixedly installed in the second bearing 40117; the second sealing ring 40308 is arranged in the fifth hole, the gear adapter pipe 40116 penetrates through the first sealing ring 40301, the bushing 40303, the gear sleeve 40118, the second sealing ring 40308 and the sixth hole, and the driven gear 40114 is fixedly sleeved on the gear adapter pipe 40116; the suction assembly 404 comprises a suction pipe 40401 and an adjusting valve 40402, the suction pipe 40401 is fixedly inserted into the eighth hole, and the right end of the suction pipe 40401 penetrates out of the shell body 5; the transverse support seat 101 is provided with a second mounting hole vertically communicated with the seventh hole, and the adjusting valve 40402 is rotatably arranged in the second mounting hole, and the adjusting valve 40402 is provided with a ventilation hole 40403 communicated with the seventh hole.

[0167] The rear shell 40502 is provided with an injection water line installation groove 40504 and a suction pipe installation groove 40505 in the axial direction; the rear shell 40502 is provided with an electronic tag 40506 on the side in contact with the motor; the rear shell 40502 is provided with an installation through hole 40115, the adjusting valve 40402 is provided with a let-in groove 40404, the edge of the rear shell 40502 around the installation through hole 40115 is clamped in the let-in groove 40404, and the adjusting valve 40402 is connected with a handle block 40405 at the end outside the eighth hole.

[0168] The use method of the embodiment is as follows:

[0169] Before use, the injection water line 40306 is connected with an external water source (such as a peristaltic pump), and an external negative pressure suction device is connected to the suction pipe 40401 of the rear shell 40502. The joint on the motor output shaft is aligned with the male joint of the fork joint 40111, the motor is installed, the electronic tag 40506 on the upper surface of the rear shell 40502 is in contact with the identification chip on the motor, the motor can identify the information recorded on the planer electronic tag 40506, and corresponding power and the like are provided according to the planer.

[0170] During surgery, one end of the outer cutter head 40204 is inserted into a surgical site, and the window structure 40201 of the outer cutter head 40204 is aligned with soft tissue to be planed; at this time, the suction device sucks the inner pipe 40205 through the suction pipe 40401, so that the window structure 40201 of the outer cutter head 40204 can suck the soft tissue into the window structure 40201 of the outer cutter head 40204.

[0171] At the same time, the external water source can enter the injection hole 40305 through the injection water line 40306, then enter the water flow channel 40304, and then enter the gap between the outer pipe 40203 and the inner pipe 40205, and finally enter the gap between the outer cutter head 40204 and the inner cutter head 40206, so as to achieve the purpose of wetting and cooling the cutter head.

[0172] The motor rotates, the motor transmits torque to the input shaft 40103, the input shaft 40103 rotates through the driving gear 40112 to drive the double gear 40113 to rotate, the double gear 40113 drives the driven gear 40114 to rotate, because the gear number of the large gear of the double gear 40113 is greater than the gear number of the driving gear 40112, the gear number of the driven gear 40114 is greater than the gear number of the small gear of the double gear 40113, so as to achieve the purpose of reducing the rotation speed of the inner cutter assembly. The rotation of the driven gear 40114 drives the gear adapter pipe 40116 and the inner pipe 40205 to rotate, the rotation of the inner pipe 40205 transmits torque to the inner cutter head 40206, the rotation of the inner cutter head 40206 and the static outer cutter head 40204 form a rotating shearing effect between the tooth blade edges 40202 of the inner cutter head 40206 and the outer cutter head 40204; the rotating shearing between the tooth blade edges 40202 of the inner cutter head 40206 and the outer cutter head 40204 is used to plane the soft tissue.

[0173] The soft tissue and water that are planed are under the action of negative pressure into the inner pipe 40205, and finally sucked out by the negative pressure device, in this process, because the soft tissue is diluted by water, it is not easy to block the pipeline of the inner pipe 40205, so that the operation is smooth.

[0174] In the embodiment, the outer pipe 40203 and the inner pipe 40205 are integrally bent to form an arc segment, which can adapt to different angle environment operations, and the arc segment on the inner pipe 40205 is a soft spring segment 207, which can also transmit torque to drive the inner cutter head 40206 to rotate, which is very convenient to use.

[0175] The embodiment is a cutter structure for orthopedic surgery, as shown in FIGS. 39-43: including a cutter pipe assembly and a cutter head assembly, the cutter pipe assembly includes an outer cutter pipe 501 and an inner cutter pipe 502, the inner cutter pipe 502 is rotatably arranged in the outer cutter pipe 501; the cutter head assembly includes a cutter head body 503 and a connecting pipe 504, one end of the connecting pipe 504 is welded or integrally formed with the cutter head body 503, the other end of the connecting pipe 504 is connected with the inner cutter pipe 502, specifically, a reduced diameter rod 505 is arranged on the part of the connecting pipe 504 away from the cutter head body 503, the reduced diameter rod 505 is fixedly arranged on the end of the inner cutter pipe 502 close to the cutter head assembly.

[0176] Two or more suction holes 506 are arranged on the connecting pipe 504 or the inner cutter pipe 502 in a circumferential array. In other embodiments, the number of suction holes 506 can be 3, 4 or 5, and the suction holes 506 can be arranged on the inner cutter pipe 502 close to the end of the connecting pipe 504. In the present embodiment, the number of suction holes 506 is two, and the two suction holes 506 are arranged symmetrically with respect to the middle plane of the connecting pipe 504. The size and shape of the two suction holes 506 are the same. In this way, the center of gravity of the entire cutter head assembly is located on the central axis of the cutter head assembly, further reducing the factors that cause vibration of the entire cutter. In addition, by arranging only two suction holes 506, the hole diameter of the suction holes 506 can be set larger, which can avoid the blockage of the suction holes 506 by bone tissue during suction.

[0177] In order to connect the cutter structure to an external handle, the inner cutter pipe 502 is driven to rotate by a driving mechanism on the external handle. The outer cutter pipe 501 is provided with an adapter sleeve 507 at the end away from the cutter head assembly. The adapter sleeve 507 includes a stepped hole arranged at the end close to the cutter head assembly and a mounting hole arranged at the other end. The stepped hole is in communication with the mounting hole. The outer wall of the outer cutter pipe 501 at the end away from the cutter head assembly is fixedly connected to the inner wall of the large hole of the stepped hole. The inner cutter pipe 502 at the end away from the cutter head assembly is sequentially inserted through the outer cutter pipe 501 and the mounting hole. In order to make the inner cutter pipe 502 rotate more smoothly, with smaller friction and noise, a bearing 508 is fixedly arranged in the mounting hole in the present embodiment. The end of the inner cutter pipe 502 away from the cutter head assembly is fixedly inserted through the inner ring of the bearing 508. The outer ring of the bearing 508 is fixedly connected to the inside of the mounting hole. The bearing 508 can be a ball bearing or a sliding bearing. In the present embodiment, the bearing 508 is a sliding bearing. In order to avoid water entering from the annular space between the outer cutter pipe 501 and the inner cutter pipe 502 and flowing out from the mounting hole, a sealing element 509 is arranged between the bearing 508 and the bottom of the mounting hole in the present embodiment. The end of the inner cutter pipe 502 away from the cutter head assembly is rotatably inserted through the sealing element 509. The sealing element 509 can be an O-shaped sealing ring or a V-shaped sealing ring. In the present embodiment, an O-shaped sealing ring is selected.

[0178] The tool bit body 503 can be one of a grinding head, a drill bit, a planer tool bit, a milling tool bit and a bone saw.

[0179] In use, the handle drives the inner cutter tube 502 to rotate, the inner cutter tube 502 rotates, and the tool bit body 503 rotates to process the diseased bone tissue.

[0180] During rotation of the inner cutter tube 2 and the tool bit assembly, because the two suction holes 506 are symmetrically arranged on the connecting pipe 504 and have the same size and shape, the center of gravity of the entire tool bit assembly is located on the central axis of the tool bit assembly, and the problem of vibration of the entire tool can be avoided during rotation.

[0181] The tool bit structure of the present embodiment is only increased in the number of suction holes 506, and does not increase other components, so that the cost increase and the failure rate increase are avoided.

[0182] As shown in Figures 47-55: the present embodiment is a surgical driving handle, which comprises a shell, a motor 601, a Hall plate 602, a cable 603, a switch key 604, the shell comprises a front body 605 and a rear body 606 which are connected to each other by buckling, in order to facilitate holding and operation, the switch key 604 is installed on the upper side of the front body 605, and the lower side of the front body is provided with an identification circuit board 607 for identifying an electronic tag on a surgical instrument, the identification circuit board 607 is in communication connection with the cable 603, the motor 1 is arranged in the rear body 606, the motor 601 comprises a rotor and a stator, the rotor is rotatably arranged in the stator, and the head of the rotor is provided with an output shaft 608.

[0183] The first mounting seat 609 is provided with a glue injection window 6011 and a plurality of glue dry through holes 6012 in the circumferential direction. One end of the cable 603 is electrically connected with a handle male head assembly 6013 (which is prior art and will not be described here), and the other end of the cable 603 is electrically connected with the switch button 604, the motor 601 and the Hall plate 602 by penetrating through the first mounting seat 609. The second mounting seat 6010 is sleeved on the motor 601, and the tail of the rotor is provided with a Hall magnet and a motor plug cover 6014. The Hall magnet is sleeved with a Hall protection tube 6015. The end of the second mounting seat 6010 close to the first mounting seat 609 is provided with a support tube 6016, and the Hall plate 602 is arranged between the support tube 6016 and the motor plug cover 6014. The first mounting seat 609 is filled with sealing glue.

[0184] The right side of the cable 603 is sleeved with a cable sleeve 6017, which is a silica gel sleeve in this embodiment. The cable sleeve 6017 is fixedly sleeved with a pressing sleeve 6018, which is provided with a first through hole. The end of the rear body 606 close to the pressing sleeve 6018 is provided with a first threaded hole. The first through hole and the first threaded hole are threadedly connected with a first screw 6019. The end of the cable 603 penetrating into the first mounting seat 609 is sleeved with a locking sleeve 6020, which is a cylindrical opening. The end of the cable sleeve 6017 away from the handle male head assembly 6013 is provided with a stepped hole 6021, and the end of the locking sleeve 6020 abuts against the stepped hole 6021. The rear body 606 is provided with a second threaded hole penetrating through the locking sleeve 6020, and the second threaded hole is threadedly connected with a second screw 6022, and the end of the second screw 6022 abuts against the locking sleeve 6020.

[0185] The output shaft 608 is a female joint, which is sleeved with a shaft sleeve 6023. The shaft sleeve 6023 is provided with a hole bushing 6024 outside. The front body 605 is provided with a mounting hole in the axial direction, and the hole bushing 6024 is fixedly installed in the mounting hole. The motor 601 and the rear body 606 are provided with a heat dissipation sleeve 6025 between the first mounting seat 609 and the front body 605. The Hall plate 602 is provided with three protrusions 6026 in the circumferential direction. The first mounting seat 609 and the second mounting seat 6010 are provided with three first grooves 6027 and second grooves 6028 matched with the protrusions 6026. The protrusions 6026 are clamped in the first grooves 6027 and the second grooves 6028.

[0186] The handle of the embodiment is welded with the Hall plate 602 and the cable 603, welded with the phase line in the cable 603 and the motor 601, and assembled into the second mounting seat 6010. When assembled, the three protrusions 6026 on the Hall plate 602 are aligned with the three second grooves 6028 of the second mounting seat 6010, and then the supporting tube 6016 is assembled into the second mounting seat 6010. The motor 601 is fixed, the second mounting seat 60102 is rotated (driving the Hall plate 602 to rotate) to adjust the running state of the motor 601, change the running direction and current of the motor 601 to the assembly requirement, mark the relative position of the motor 601 and the second mounting seat 6010 with glue, fill the gap between the motor 601 and the Hall plate 602 with silicone to make it full, and also mark a small amount of silicone at the welding point of the cable 603 and the Hall plate 602 (first time of filling glue). Then, the first mounting seat 609 is assembled (the three protrusions on the Hall plate 602 are aligned with the three first grooves 6027 on the first mounting seat 609) and welded with the second mounting seat 6010, the locking sleeve 6020 is assembled and locked with the second screw 6022, the assembly is hung with the cable 603 and placed for 6024 hours to wait for the glue to dry. The assembly is placed flat, the glue injection window 6011 on the first mounting seat 609 is upward, and the silicone is filled to cover the cable 603 (second time of filling glue), and placed for 48 hours to wait for the glue to dry. Similarly, the assembly is placed flat, the glue injection window 11 on the first mounting seat 609 is upward, and the silicone is filled to cover the cable 603 (second time of filling glue), and placed for 48 hours to wait for the glue to dry.

[0187] The motor plug 6014 is used to install at the tail of the motor 601, which is used for spatial isolation of the Hall plate 602 and the Hall magnet of the motor 601. The first mounting seat 609 and the second mounting seat 6010 are used to cover the motor 601, and the sealing glue is injected into the first mounting seat 609, so that the problem of circuit failure caused by water vapor entering during use or high-temperature disinfection can be avoided. The setting of the motor plug 6014 can also avoid the flow of sealing glue into the motor 601. The cable sleeve 6017 is fixed by the pressing sleeve 6018, and the pressing sleeve 6018 is fixedly connected with the shell by the first screw 6019, so that the cable sleeve 6017 can be fixed on the shell. The cable 603 is tightly held by the locking sleeve 6020 sleeved on the end thereof, and is tightly held by the locking sleeve 6020 by tightening the second screw 6022, so that the joint of the cable 603 can be prevented from being separated from the Hall plate 602 during the use of pulling.

[0188] A split type surgical instrument transmission connection structure, as shown in Figures 56-58, comprises a driving interface component arranged on a power assembly and a driven interface component arranged on a surgical assembly, the power assembly comprising a motor 701, the driving interface component comprising an output joint 702 arranged on an output shaft of the motor 701, the driven interface assembly comprising an input joint 703 cooperating with the output joint 702, an input shaft 704 and a driving tube 705, the left end of the driving tube 705 being provided with a mounting hole, a bearing 706 being fixedly installed in the mounting hole, the input shaft 704 being located in the driving tube 705 and slidingly passing through the bearing 706, the left end of the input joint 703 being provided with a blind hole, the input joint 703 being fixedly sleeved on the input shaft 704 through the blind hole, an elastic member being arranged between the input joint 703 and the bearing 706, the elastic member of the embodiment being a spring 707, and an elastic member having a stretching and resetting function such as a rubber band can also be used in use. The spring 707 is sleeved on the input shaft 704, one end of the spring 707 abuts against the bearing 706, and the other end of the spring 707 abuts against the input joint 703. The output joint 702 is sleeved with a shaft sleeve 708, the shaft sleeve 708 is provided with a hole bushing 709 outside, the hole bushing 709 can be installed on the motor 701, and when butted, the hole bushing 709 is sleeved on the driving tube 705.

[0189] As shown in Figures 59 and 60, the output joint 702 is provided with a strip-shaped groove 7010, the bottom of the strip-shaped groove 7010 is provided with a V-shaped groove 7011; the end of the input joint 703 is provided with a flat square structure 7012 cooperating with the strip-shaped groove 7010, the end of the flat square structure 7012 is provided with a V-shaped protrusion 7013 cooperating with the V-shaped groove 7011. The end of the output joint 702 is provided with a first inclined surface 7014 inclined into the strip-shaped groove 7010, and the end of the input joint 703 is provided with a second inclined surface 7015 which is short outside and long inside.

[0190] When the output joint 702 and the input joint 703 are normally assembled in use, the flat square structure 7012 at the end of the input joint 703 is just clamped in the strip-shaped groove 7010 on the output joint 702, and the output shaft of the motor 701 drives the input shaft 704 to rotate; at this time, the shaft sleeve 708 limits the input joint 703 and the output joint 702 inside the shaft sleeve 708, and limits the driving tube 705 inside the hole bushing 709.

[0191] When the output joint 702 and the input joint 703 are not normally assembled, the output joint 702 will move the input joint 703 away from the output joint 702, compressing the spring 707 in the process, and at this time the motor 701 is started, the motor 701 drives the output shaft to rotate, when the bar-shaped groove 7010 and the flat square structure 7012 just fit, under the action of the spring 707 reset force, the input shaft 704 will move to the output shaft direction, the flat square structure 7012 is automatically clamped into the bar-shaped groove 7010, the whole process is automatically completed, without the need for the operator to align, the whole process is more convenient and fast, saves the operation preparation time.

[0192] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0193] The specific embodiments of the present application are described above. It should be understood that the present application is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essential content of the present application. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A split-type planer blade, characterized by, include: A cutting tool assembly and a power transfer mechanism are provided. The cutting tool assembly is connected to the power transfer mechanism, and the power transfer mechanism obtains external power and drives the cutting tool assembly.

2. Splitting planer blade according to claim 1, characterized in that The power transfer mechanism has a driven gear connected to its connecting pipe via a sleeve, and the connecting pipe is connected to the power transfer mechanism via a bearing mounted on the sleeve. The end of the power transfer mechanism is provided with a snap-fit ​​structure, which snaps into the snap-fit ​​structure at the corresponding position of the drive handle; The end of the power transfer mechanism is also provided with a suction tube fixing structure, which includes a metal fixing plate disposed between the suction tube and the housing of the power transfer mechanism, and the suction tube is fixed in the axial and radial directions by the metal fixing plate.

3. A surgical tool characterized by, include: A tool assembly and a drive handle, wherein the drive handle provides power to the tool assembly and is detachably connected to the tool assembly; The cutting tool assembly includes an inner cutting tool assembly, an outer cutting tool assembly, a power transfer mechanism, and a suction pipe. The outer cutting tool assembly is sleeved on the inner cutting tool assembly. The inner cutting tool assembly is connected to the suction pipe. A gear is sleeved on the inner cutting tool assembly. The output end of the drive handle can be engaged with the input shaft. The input shaft drives the gear set of the power transfer mechanism. The gear set drives the gear, thereby driving the inner cutting tool assembly to move. With the drive handle connected to the tool assembly, the drive handle is in contact with the suction pipe, and the suction pipe dissipates heat from the drive handle.

4. A straight plunge cutting head, characterized by The device includes an inner tube component, an outer tube component, and a tool holder. The inner tube component includes an inner tool tube and an inner tool head, which are fixedly connected. The outer tube component includes an outer tool tube and an outer tool head, which are fixedly connected. The inner tool head is rotatably disposed inside the outer tool head, and the inner tool tube is rotatably disposed inside the outer tool tube. Both the inner and outer tool heads have window structures. The tool holder includes an outer tool holder and an inner tool holder, which are rotatably connected. The outer tool tube is fixedly connected to the outer tool holder, and the inner tool tube is fixedly connected to the inner tool holder. A bendable structure is provided on the side of the inner tool tube near the inner tool head. The flexible structure is a single snap-fit ​​structure, which is a structure in which adjacent inner blade tubes are interlocked with each other in a concave-convex fit.

5. A flood-gate cutter head characterized in that, The tool includes an inner cutter tube, an inner cutter head, an outer cutter tube, an outer cutter head, and a tool holder. The inner cutter tube is fixedly connected to the inner cutter head, and the outer cutter tube is fixedly connected to the outer cutter head. There are interconnected gaps between the inner and outer cutter heads, and between the inner and outer cutter tubes. Both the inner and outer cutter heads have planing windows. The tool holder includes an outer tool holder and an inner tool holder. The outer cutter tube is fixedly connected to the outer tool holder, and the inner cutter tube is fixedly connected to the inner tool holder. The inner and outer tool holders are rotatably connected. The outer tool holder has an external water injection hole that communicates with the gap between the inner and outer cutter tubes. The outer blade tube has an outer arc-shaped section near the outer blade head, and the inner blade tube has an inner arc-shaped section near the inner blade head. The outer arc-shaped section and the inner arc-shaped section overlap in position and are the same segment. The inner arc-shaped section is a soft structure. The inner arc-shaped section is a corrugated spiral spring pipe formed by spiral winding, and adjacent spiral units of the corrugated spiral spring pipe are embedded in each other in a concave-convex matching manner. Edge lines between adjacent spiral units of the corrugated spiral spring pipe are mutually embedded rectangular or inverted trapezoidal corrugated lines.

6. A power transfer mechanism for a tool assembly, comprising: The mounting seat comprises an integrally formed transverse support seat and a vertical mounting plate, the driving interface assembly is mounted on the vertical mounting plate, and the speed reducer assembly is mounted on the transverse support seat and the vertical mounting plate.

7. The power transfer mechanism of claim 6, wherein, The vertical mounting plate is provided with a first mounting hole, the driving interface assembly further comprises a driving pipe, and the driving pipe is fixedly arranged through the first mounting hole. An end of the driving pipe close to the vertical mounting plate is provided with a first bearing, the driving pipe is provided with a first stepped hole, the input shaft passes through the inner ring of the first bearing and the first stepped hole and is fixedly connected with the first bearing, and an end of the input shaft away from the vertical mounting plate is fixedly connected with a shift fork joint.

8. The power transfer mechanism of claim 6, wherein, The end of the shift fork joint away from the vertical mounting plate is a male head. The speed reducer assembly comprises a driving gear fixedly mounted on the input shaft, a double gear is rotatably mounted on the vertical mounting plate, a large gear of the double gear is engaged with the driving gear, a small gear of the double gear is engaged with a driven gear, the number of teeth of the large gear of the double gear is greater than that of the driving gear, and the number of teeth of the driven gear is greater than that of the small gear of the double gear.

9. A knife structure for orthopedic surgery, characterized by The vertical mounting plate is provided with a pin hole, the pin hole is rotatably connected with a pin, and the double gear is fixedly mounted on the pin.

10. [Amended according to Rule 26 23.05.2025] The surgical cutting tool structure for orthopedics according to claim 9, wherein The knife pipe assembly and the knife head assembly are provided. The knife pipe assembly comprises an outer knife pipe and an inner knife pipe, the inner knife pipe is rotatably arranged in the outer knife pipe, the knife head assembly comprises a knife head body and a connecting pipe, one end of the connecting pipe is fixedly connected with the knife head body, the other end of the connecting pipe is connected with the inner knife pipe, two or more suction holes are arranged on the connecting pipe or the inner knife pipe, and all the suction holes are arranged in a circumferential array on the connecting pipe or the inner knife pipe. All the suction holes are arranged on the connecting pipe. The number of the suction holes is two, the two suction holes are symmetrically arranged relative to a middle plane of the connecting pipe, and the two suction holes are identical in size and shape. An adapter sleeve is arranged at an end of the outer knife pipe away from the knife head assembly, the adapter sleeve comprises a stepped hole arranged at an end close to the knife head assembly and a mounting hole arranged at the other end, the stepped hole is in communication with the mounting hole, an outer wall of the end of the outer knife pipe away from the knife head assembly is fixedly connected with an inner wall of a large hole of the stepped hole, and an end of the inner knife pipe away from the knife head assembly sequentially passes through the outer knife pipe and the mounting hole. The bearing is fixedly installed in the mounting hole, the inner cutter pipe is fixedly arranged on the inner ring of the bearing and away from the cutter head assembly, and the outer ring of the bearing is fixedly connected with the inside of the mounting hole; The bearing and the bottom of the mounting hole are provided with a sealing element, and the end of the inner cutter pipe away from the cutter head assembly rotates through the sealing element; The cutter head body includes one of a grinding head, a drill bit, a planer head, a milling cutter head, and a bone saw; The cutter head body is a grinding head, the outer cutter pipe is provided with a sheath sleeve near the end of the cutter head assembly, and the sheath sleeve is used for wrapping part of the grinding head.

11. The knife structure for orthopaedic surgery according to claim 9, wherein The connecting pipe is provided with a reduced diameter rod away from the cutter head body, and the reduced diameter rod is fixedly arranged on the end of the inner cutter pipe near the cutter head assembly.

12. A drive handle characterized by The shell, the motor, the Hall plate and the cable, the motor includes a rotor and a stator, the rotor is rotatably arranged in the stator, the head of the rotor is provided with an output shaft, further comprising a first mounting seat and a second mounting seat arranged in the shell, one end of the cable is electrically connected with a handle male head assembly, the other end of the cable passes through the first mounting seat and is electrically connected with the motor and the Hall plate, the second mounting seat is sleeved on the motor, the tail of the rotor is provided with a Hall magnet and a motor plug, the Hall magnet is matched with the Hall plate, the Hall plate is arranged between the first mounting seat and the motor plug, and the first mounting seat and the motor plug are filled with sealing glue.

13. The drive handle of claim 12, wherein, The part of the cable away from the handle male head assembly is sleeved with a cable sleeve, the cable sleeve is fixedly sleeved with a pressing sleeve, the pressing sleeve is provided with a first through hole, the end of the shell near the pressing sleeve is provided with a first threaded hole, and the first threaded hole and the first through hole are screw connected with a first screw; the end of the cable passing into the first mounting seat is sleeved with a locking sleeve, the locking sleeve is a cylindrical with an opening, the end of the cable sleeve away from the handle male head assembly is provided with a stepped hole, and the end of the locking sleeve abuts against the stepped hole; the shell is provided with a second threaded hole penetrating into the locking sleeve, and the second threaded hole is screw connected with a second screw, and the end of the second screw abuts against the locking sleeve; The shell includes a front body and a rear body fixedly connected, the motor is arranged in the rear body, the front body is provided with a switch button, and the switch button is electrically connected with the cable, the motor and the Hall plate; The front body is provided with an identification circuit board, and the identification circuit board is in communication connection with the cable; The end of the second mounting seat near the first mounting seat is provided with a support pipe, and the support pipe is arranged between the second mounting seat and the Hall plate; The output shaft is a female connector, the female connector is sleeved with a shaft sleeve, the shaft sleeve is provided with a hole lining sleeve, and the front body is provided with a mounting hole in the axial direction, and the hole lining sleeve is fixedly installed in the mounting hole; The motor and the rear body are provided with a heat dissipation sleeve, and the heat dissipation sleeve is located between the second mounting seat and the front body; The Hall magnet is sleeved with a Hall protection pipe; The first mounting seat is provided with a glue injection window and a plurality of glue drying through holes in the circumferential direction. The Hall plate is provided with a plurality of protrusions in the circumferential direction, and the first mounting seat and the second mounting seat are respectively provided with a first groove and a second groove matched with the protrusions, and the protrusions are clamped in the first groove and the second groove.

14. A split surgical instrument transmission connection structure, comprising: a first half transmission member; a second half transmission member; and a transmission member coupling structure coupling the first half transmission member to the second half transmission member. The drive interface component is arranged on the power assembly, and the driven interface component is arranged on the surgical assembly, the power assembly comprises a motor, the drive interface component comprises an output joint arranged on the output shaft of the motor, the driven interface component comprises an input joint matched with the output joint, the driven interface component further comprises an input shaft and a drive pipe, the input shaft is arranged in the drive pipe, the input joint is fixedly installed on the end of the input shaft close to the output joint, and an elastic member is arranged between the input joint and the end of the drive pipe away from the output joint.

15. The split surgical instrument transmission connection of claim 14, wherein, The end of the drive pipe away from the output joint is provided with a mounting hole, a bearing is fixedly installed in the mounting hole, the input shaft is slidably arranged in the bearing, one end of the elastic member abuts against the bearing, and the other end of the elastic member abuts against the input joint. The elastic member is a spring, the spring is sleeved on the input shaft, one end of the spring abuts against the bearing, and the other end of the spring abuts against the input joint. The output joint is a female joint, and the input joint is a male joint. The output joint is provided with a strip-shaped groove, and the bottom of the strip-shaped groove is provided with a V-shaped groove; the end of the input joint is provided with a flat square structure matched with the strip-shaped groove, and the end of the flat square structure is provided with a V-shaped protrusion matched with the V-shaped groove; The end of the input joint away from the flat square structure is provided with a blind hole, and the input joint is fixedly sleeved on the input shaft through the blind hole; The end of the output joint is provided with a first inclined surface inclined into the strip-shaped groove, and the end of the input joint is provided with a second inclined surface with an outer short and an inner long; The output joint is sleeved with a shaft sleeve, and the shaft sleeve is provided with a hole bushing outside, and when the shaft sleeve is connected, the hole bushing is slidably sleeved on the drive pipe.

Images