CN110200729A - Special compound bone crushing device of spinal surgery - Google Patents

Abstract

The invention provides a special composite bone crushing device for spinal surgery, which solves the problems that bone particles cut off in the prior art are uneven and have spurs; the problem of failure to obtain bone powder. Including main part and knife rest shell, its characterized in that, there is the bull stick in the main part, there is L shape knife rest on the bull stick, there is the reamer rest on the L shape knife rest, the cutter frame, the knife grinding frame, there is driven connection pad in the pivot of three knife rest, there is motor base on the bull stick, there is the motor on the motor base, there is the initiative connection pad on the motor shaft, there is the drive bevel gear on the bull stick, there is driven bevel gear in the main part, there are one-way wheel and cam on the driven bevel gear right side, install the torsional spring between cam and the main part, there is the constant head tank at the main part top. The invention can rapidly crush the bone and obtain the crushed bone powder through the rotating tool rest; the tool rest can be accurately positioned through the cam and the positioning block; through the fixed pressing block, the connection between the tool rest and the motor is realized, and the bone crushing work becomes more convenient.

Description

A kind of broken bone device of spinal surgery specific complex

Technical field

The present invention relates to the field of medical instrument technology, specifically a kind of broken bone device of spinal surgery specific complex.

Background technique

Vertebra is to be formed by connecting by different centrums by the interverbebral disc and subsequent two Minor articulus of front, this joint permits Perhaps spinal curvature and torsion, after increasing with the age or meet with wound, these joints may be worn or regression, to occur Pain.At this moment it just needs to stablize by drug or operation method vertebra and arthritic position occurs, if physics and drug Treatment is unable to control pain, it is necessary to carry out operative treatment, but various interior fixations, the stabilization established all be it is temporary, Over time, fixed function will gradually weaken, and the stability established by it also loses therewith, this just needs to lead to Spinal fusion surgery is crossed to obtain permanent stabilization.

In spinal fusion surgery, need the bone taken out from the other positions of patient to be cut into little particle, obtained broken bone Particle is supported for the filling between adjacent vertebrae, finally the small gap between filling broken osseous granules with crushed bone meal end, so that Patient achievees the purpose that healing and alleviation, currently, the existing broken bone used during surgery, is usually all using osteophore and operating scissors Bone is cut into little particle.

But there are following drawbacks for the broken bone method of above-mentioned backbone:

1. uneven using the bone granular size that osteophore or operating scissors are cut；

2. the particle that existing broken bone method shears off, some meetings have bur, and patient can be allowed to generate pain after being filled into backbone Bitterly；

3. existing broken bone device has a single function, it can only be cut into the broken bone of graininess, need just obtain bone powder using other tools End；

4. shred bone using osteophore or operation, manpower is needed firmly to hold with a firm grip osteophore or operating scissors, it is not only time-consuming and laborious, also It is easy to cause broken bone disorderly to splash everywhere；

Therefore, the present invention provides a kind of broken bone device of spinal surgery specific complex to solve the above problems.

Summary of the invention

For above situation, for the defect for overcoming the prior art, the present invention provides a kind of spinal surgery specific complex Broken bone device, effective solution osteophore or operating scissors are cut in the prior art bone particle are uneven；The bone cut Particle has bur；It has a single function, is unable to get bone powder；It is time-consuming and laborious, the problem of be easy to causeing broken bone disorderly to splash everywhere.

A kind of broken bone device of spinal surgery specific complex including the internal main body for cavity and is fixed on above main body Knife rest shell, which is characterized in that be rotatably equipped with bull stick in the main body, be fixedly mounted on bull stick there are three L shape knife rest, three Cutter ladder, cutoff knife rack, knife board, the cutter ladder, cutoff knife rack, mill are rotated and are slidably fitted with respectively on a L shape knife rest The driven terminal pad being fixedly installed with respectively on the inside of L shape knife rest in the shaft of knife rest is cased with positioned at L shape knife on the bull stick Motor base above frame is fixedly installed with motor on motor base, active terminal pad is equipped in the rotation axis of motor, described It is fixedly installed on bull stick and is located at main intracorporal drive bevel gear, be rotatably equipped on the inner wall of main body and engaged with drive bevel gear Driven wheel of differential, be coaxially installed with one-way wheel on the right side of driven wheel of differential, cam, cam be coaxially installed on the right side of one-way wheel Reduction torsion spring is installed between main body, the positioning of knife rest outer casing bottom is provided with above cam and run through at the top of main body Slot is slidably fitted with locating piece in locating slot.

Preferably, three L shape knife rests, including the knife rest sleeve being fixedly mounted on bull stick, the foreign steamer of knife rest sleeve There are three L shape knife rests for integrally connected in profile surface, and the top of three L shape knife rests is connected with knife rest crossbeam respectively.

Preferably, multiple protrusions are connected on the contact surface of the driven terminal pad and active terminal pad, it is multiple The protrusion enables to driven terminal pad to connect with active terminal pad.

Preferably, the cutter ladder, including reamer shell, rotational installation is there are two reamer in the reamer shell, and two One end of the shaft of the reamer rotates respectively and is slidably mounted in knife rest crossbeam through reamer shell, and one of reamer turns Driven terminal pad is installed, the left side of two reamers is coaxially installed with reamer driving gear and reamer driven tooth respectively on axis It takes turns, the knife rest reset spring being cased in two reamer shafts between reamer shell and knife rest crossbeam, the right side of reamer shell Side is connected with circular arc briquetting.

Preferably, the cutoff knife rack, including cutter shell, rotational installation is there are two cutter in the cutter shell, and two One end of the shaft of the cutter rotates respectively and is slidably mounted in knife rest crossbeam through cutter shell, and one of cutter turns Driven terminal pad is installed, the left side of two cutters is coaxially installed with cutter driving gear and cutter driven tooth respectively on axis It takes turns, the knife rest reset spring being cased in two cutter shafts between cutter shell and knife rest crossbeam, the right side of cutter shell Side is connected with circular arc briquetting.

Preferably, the knife board, including sharpening shell, sand roller that there are two the interior rotational installations of the sharpening shell, two One end of the shaft of a sand roller rotates respectively and is slidably mounted in knife rest crossbeam through sharpening shell, one of mill Driven terminal pad is installed, the left side of two sand rollers is coaxially installed with sharpening driving pulley and sharpening respectively on swivel axis Transmission belt is installed on driven pulley, sharpening driving pulley and sharpening driven pulley, is cased in two sharpening shafts and is located at mill Knife rest reset spring between knife shell and knife rest crossbeam is connected with circular arc briquetting on the right side of sharpening shell.

Preferably, there are two locating rod, the locating piece is boss-shaped and is slidably installed the intracorporal top installation of the master In two locating rods, the reset spring that is equipped in two locating rods between locating piece and main body.

Preferably, it is provided with motor mounting groove on the motor base, is slidably fitted with motor mounting plate in motor mounting groove, Motor is installed on motor mounting plate, reset motor spring is installed between motor mounting plate and motor mounting groove.

Preferably, the fixation briquetting of arc-shaped is installed on the knife rest outer casing inner wall, be provided at the top of knife rest shell into Material mouth is provided with storage box installing port on the right side of knife rest shell, and sliding is placed with storage box in storage box installing port, and described turn Rotating handles are installed at the top of bar.

The present invention rapidly can be such that bone uniformly crushes, and available by three knife rests being adjusted by rotation Powdered broken bone；By one-way wheel, cam and locating piece, each knife rest can be enabled accurately to be connected to motor；It is logical The cooperation for crossing fixed briquetting, circular arc briquetting and terminal pad, realizes the connection and disconnection between each knife rest and motor, can make broken Bone work becomes more easily convenient.

Detailed description of the invention

Fig. 1 is stereoscopic schematic diagram one of the present invention.

Fig. 2 is stereoscopic schematic diagram two of the present invention.

Fig. 3 is broken isometric schematic diagram of the present invention.

Fig. 4 is stereoscopic schematic diagram three of the present invention.

Fig. 5 is cutter ladder stereoscopic schematic diagram of the present invention.

Fig. 6 is cutoff knife rack stereoscopic schematic diagram of the present invention.

Fig. 7 is knife board stereoscopic schematic diagram of the present invention.

Fig. 8 is L shape knife rest stereoscopic schematic diagram of the present invention.

Fig. 9 is motor base stereoscopic schematic diagram of the present invention.

Figure 10 is that motor of the present invention installs stereoscopic schematic diagram.

Figure 11 is locating piece stereoscopic schematic diagram of the present invention.

Figure 12 is knife rest shell stereoscopic schematic diagram of the present invention.

Specific embodiment

For the present invention aforementioned and other technology contents, feature and effect, in following cooperation with reference to figures 1 through Figure 12 pairs In the detailed description of embodiment, can clearly it present.The structure content being previously mentioned in following embodiment is attached with specification Figure is reference.

Each exemplary embodiment of the invention is described below with reference to accompanying drawings.

Embodiment one, the present invention are a kind of broken bone device of spinal surgery specific complex, including the internal master for cavity Body 1 and the knife rest shell 2 for being fixed on 1 top of main body can be can also be used between main body 1 and knife rest shell 2 using being welded and fixed Other connection types, which is characterized in that bull stick 3 that is vertical and running through knife rest shell 2, bull stick 3 are rotatably equipped in the main body 1 Can the rotation in main body 1 and knife rest shell 2, be uniformly fixedly mounted that there are three L shape knife rest 5, three L shapes on bull stick 3 Knife rest 5 can be rotated together with bull stick 3, rotated respectively on three L shape knife rests 5 and be slidably fitted with cutter ladder 7, cutoff knife rack 8, knife board 9, cutter ladder 7, cutoff knife rack 8, knife board 9 shaft can be rotated in L shape knife rest 5, can also be in L shape knife rest 5 Interior sliding, the cutter ladder 7, cutoff knife rack 8, knife board 9 shaft on be fixedly installed with respectively positioned at L shape knife rest 5 inside from Dynamic terminal pad 10, rotating driven terminal pad 10 can be such that the shaft of cutter ladder 7, cutoff knife rack 8, knife board 9 rotates together, and described turn The motor base 11 being cased with above L shape knife rest 5 on bar 3, is fixedly connected between motor base 11 and knife rest shell 2, can be The fixed multiple fixed links in 11 upper surface of motor base, the other end of fixed link can be fixed on knife rest shell 2, can be used herein Welding can also be used other common connection types, be fixedly installed with motor 12 on motor base 11, it is solid that bolt can be used herein It is fixed, other connection types can also be used, motor 12 connects power supply, is equipped with active terminal pad in the rotation axis of motor 12 13, active terminal pad 13 is rotated together with the rotation axis of motor 12, slides cutter ladder 7 or cutoff knife rack 8 or knife board 9, Neng Goushi Now active terminal pad 13 is connected or disconnected with driven terminal pad 10, when active terminal pad 13 is connect with driven terminal pad 10, electricity Machine 12 can then drive cutter ladder 7 or cutoff knife rack 8 or knife board 9 to rotate, and be fixedly installed in main body 1 on the bull stick 3 Drive bevel gear 17, drive bevel gear 17 rotates together with bull stick 3, is rotatably equipped on the inner wall of main body 1 and active conical tooth The driven wheel of differential 18 of 17 engagement of wheel, drive bevel gear 17 drives driven wheel of differential 18 to rotate, and the axis of driven wheel of differential 18 Vertical with the axis of drive bevel gear 17, the right side of driven wheel of differential 18 is coaxially installed with one-way wheel 19, and one-way wheel 19 can only be with Driven wheel of differential 18 is rotated to a direction, and to another direction Shi Zeke with rotation, the right side of one-way wheel 19 is coaxially installed with Cam 20, cam 20 can rotate in the shaft of driven wheel of differential 18, and cam 20 is connect with one-way wheel 19, and one-way wheel 19 is accompanied Dynamic bevel gear 18 is able to drive cam 20 when rotating and rotates together, and reduction torsion spring 21, cam are equipped between cam 20 and main body 1 After 20 rotate with one-way wheel 19, under the action of reduction torsion spring 21, cam 20 is rotated with one-way wheel 19 together opposite direction, thus Realize the reset of cam 20, the top of main body 1 is provided with the locating slot 22 for above cam 20 and running through 2 bottom of knife rest shell, Locating piece 23 is slidably fitted in locating slot 22, locating piece 23 can slide up and down in locating slot 22, and cam 20 is located at positioning The lower section of block 23, cam 20 and locating piece 23 cooperate, and the up and down motion of locating piece 23 may be implemented, when rotating bull stick 3, at this time Bull stick 3 is rotated with L shape knife rest 5, and three knife rest switching positions, drive bevel gear 17 rotates simultaneously, and driven wheel of differential 18 drives One-way wheel 19 and cam 20 rotate, and when one of L shape knife rest 5 reaches required position, cam page 20 is simultaneously locating piece 23 It jacking up, locating piece 23 resists L shape knife rest 5, thus position knife rest fast and accurately, and when locating piece 23 resists L shape knife rest 5, institute Driven terminal pad 10 in the knife rest shaft of switching is connect with the active terminal pad 13 on motor rotation axis simultaneously, at this point, cam 20 under the action of reduction torsion spring 21, invert and reset with one-way wheel 19.

Embodiment two, on the basis of example 1, three L shape knife rests 5, including being fixedly mounted on bull stick 3 Knife rest sleeve 4, knife rest sleeve 4 are rotated together with bull stick 3, and there are three L shape knife rests for integrally connected on the outer surface of knife rest sleeve 4 5, three L shape knife rests 5 are uniformly distributed on the outer surface of knife rest sleeve 4, the top difference of three L shape knife rests 5 It is connected with knife rest crossbeam 6, is opened on the knife rest crossbeam 6 there are two knife rest shaft mounting hole, the shafts of three knife rests can be Rotation in knife rest shaft mounting hole, and can be slided in knife rest shaft mounting hole.

Embodiment three, on the basis of example 1, on the contact surface of the driven terminal pad 10 and active terminal pad 13 Multiple protrusions are connected with, the protrusion is arc-shaped, each when driven terminal pad 10 is connect with active terminal pad 13 Protrusion is staggeredly engaged, contacts with each other between each plane in protrusion, and the rotation of active terminal pad 13 drives driven terminal pad 10 rotations, when needing to switch knife rest, first stop motor 12 to realize the transmitting of power, and active terminal pad 13 stops turning Dynamic, driven terminal pad 10 is since inertia will continue to rotation certain time, and the arc surface of each protrusion contacts with each other at this time, to make It is separated between active terminal pad 13 and driven terminal pad 10, rotates bull stick 3 at this time and switch next knife rest.

Example IV, on the basis of embodiment three, the cutter ladder 7, including reamer shell 701, reamer shell 701 be Transparent square casing, there are two reamer 702, two reamers 702 can be with for rotational installation in the reamer shell 701 It rotates, and cooperates between two reamers 702 and there are smaller gap in reamer shell 701, when two reamers 702 rotate Bone can be twisted into powdered, to obtain powdered broken bone, reamer is run through in one end of the shaft of two reamers 702 Shell 701 rotates respectively and in the knife rest shaft mounting hole that is slidably mounted on knife rest crossbeam 6, the shaft of two reamers 702 It can only be rotated in reamer shell 701, the shaft of two reamers 702 can not only rotate in knife rest shaft mounting hole, but also can To slide in knife rest shaft mounting hole with reamer shell 701, driven terminal pad is installed in the shaft of one of reamer 702 10, the left side of two reamers 702 is coaxially installed with reamer driving gear 704 and reamer driven gear 705, driven company respectively When connecing disk 10 one of reamer shaft being driven to rotate clockwise, reamer driving gear 704 is also rotated clockwise, actively with reamer The reamer driven gear 705 that gear 704 engages then drives another reamer 702 to rotate counterclockwise, turn of two reamers 702 It moves contrary, to squeeze bone to centre, achievees the effect that rub bone, be cased with position in the shaft of two reamers 702 Knife rest reset spring 15 between reamer shell 701 and knife rest crossbeam 6, when reamer shell 701 is with the shaft of two reamers 702 When sliding in knife rest shaft mounting hole to knife rest crossbeam 6, driven terminal pad 10 is connected with active terminal pad 13, and knife rest resets Spring-compressed stores power, and when driven terminal pad 10 is separated with active terminal pad 13, reamer shell 701 is in knife rest reset spring 15 Effect is lower to be resetted, and the right side of reamer shell 701 is connected with circular arc briquetting 16, pushes circular arc briquetting 16, can make outside reamer Shell 701 slides in knife rest crossbeam 6.

Embodiment five, on the basis of embodiment three, the cutoff knife rack 8, including cutter shell 801, cutter shell 801 be Transparent square casing, there are two cutter 802, two cutters 802 can be with for rotational installation in the cutter shell 801 Rotated in cutter shell 801, multiple cutting edges be equidistantly installed on two cutters 802, two cutters 802 it Between cooperate, be staggered installation of between multiple cutting edges, cutter shell is run through in one end of the shaft of two cutters 802 801 rotate respectively and in the knife rest shaft mounting hole that is slidably mounted on knife rest crossbeam 6, and the shaft of two cutters 802 can only It is rotated in cutter shell 801, the shaft of two cutters 802 can not only rotate in knife rest shaft mounting hole, but also can band Cutter shell 801 slided in knife rest shaft mounting hole, driven terminal pad 10 is installed in the shaft of one of cutter 802, The left side of two cutters 802 is coaxially installed with cutter driving gear 804 and cutter driven gear 805, driven connection respectively When disk 10 drives one of cutter shaft to rotate clockwise, cutter driving gear 804 is also rotated clockwise, with cutter driving tooth The cutter driven gear 805 of 804 engagement of wheel then drives another cutter 802 to rotate counterclockwise, the rotation of two cutters 802 It is contrary, to achieve the effect that shred bone, be cased with and be located in the shaft of two cutters 802 to intermediate shear bone Knife rest reset spring 15 between cutter shell 801 and knife rest crossbeam 6, when cutter shell 801 exists with the shaft of two cutters 802 When sliding in knife rest shaft mounting hole to knife rest crossbeam 6, driven terminal pad 10 is connected with active terminal pad 13, and knife rest resets bullet Spring compression stores power, when driven terminal pad 10 is separated with active terminal pad 13, work of the cutter shell 801 in knife rest reset spring 15 With lower reset, the right side of cutter shell 801 is connected with circular arc briquetting 16, pushes circular arc briquetting 16, can make cutter shell 801 slide in knife rest crossbeam 6.

Embodiment six, on the basis of embodiment three, the knife board 9, including sharpening shell 901, sharpening shell 901 be Transparent square casing, there are two sand roller 902, two sand rollers 902 for the interior rotational installation of the sharpening shell 901 Between there are gap, two sand rollers 902 can rotate in sharpening shell 901, the shaft of two sand rollers 902 One end rotated respectively through sharpening shell 901 and in the knife rest shaft mounting hole that is slidably mounted on knife rest crossbeam 6, described in two The shaft of sand roller 902 can only rotate in sharpening shell 901, and the shaft of two sand rollers 902 both can be in tool axis Rotation in mounting hole, and can be slided in knife rest shaft mounting hole with sharpening shell 901, it is installed in one of sharpening shaft There is driven terminal pad 10, the left side of two sand rollers 902 is coaxially installed with sharpening driving pulley 904 respectively and whets a knife driven Transmission belt 906 is installed, driven terminal pad 10 drives it on belt wheel 905, sharpening driving pulley 904 and sharpening driven pulley 905 In the shaft of a sand roller 902 when rotating clockwise, sharpening driving pulley 904 also rotates clockwise, with sharpening driving pulley 904 then drive another sand roller 902 also to rotate clockwise by the sharpening driven pulley 905 that transmission belt 906 connects, two institutes The rotation direction for stating sand roller 902 is identical, so that bone be enable to rotate in two sand rollers 902, grinds off bur to reach Effect can then be dropped to from the gap between two sand rollers 902 when the size of bone fragments is ground to suitable size In container, the knife rest reset spring 15 being cased in two sharpening shafts between sharpening shell 901 and knife rest crossbeam 6, when When sharpening shell 901 slides in knife rest shaft mounting hole to knife rest crossbeam 6 with the shaft of two sand rollers 902, driven terminal pad 10 are connected with active terminal pad 13, and the compression of knife rest reset spring stores power, when driven terminal pad 10 is divided with active terminal pad 13 When opening, sharpening shell 901 resets under the action of knife rest reset spring 15, and the right side of sharpening shell 901 is connected with circular arc Briquetting 16 pushes circular arc briquetting 16, sharpening shell 901 can be made to slide in knife rest crossbeam 6.

Embodiment seven, on the basis of example 1, there are two locating rod 24, positioning for the top installation in the main body 1 Bar 24 can weld in main body 1, can also be used and is bolted, and the locating piece 23 is boss-shaped and is slidably mounted on described in two In locating rod 24, locating piece 23 is the boss-shaped of T shape, and the part of protrusion is slided in locating slot 22,23 two sides of locating piece difference Be provided with through-hole, two locating rods 24 are placed in through-hole, enable locating piece 23 along locating rod 24 in locating slot 22 on Lower slider, the reset spring 25 being equipped in two locating rods 24 between locating piece 23 and main body 1, when locating piece 23 When resisting L shape knife rest 5 up by the top of cam 20, the compression of reset spring 25 stores power, and after cam 20 resets, locating piece 23 is resetting It is also resetted simultaneously under the action of spring 25.

Embodiment eight is provided with motor mounting groove 26, motor installation on the basis of example 1 on the motor base 11 The bottom of slot 26 is provided with sliding slot, and motor mounting plate 27, the bottom one of motor mounting plate 27 are slidably fitted in motor mounting groove 26 Body is connected with sliding block, and sliding block is mounted in sliding slot, and motor mounting plate 27 is slided in motor mounting groove 26, motor peace Motor 12 is installed in loading board 27, herein can bolt fix, other common connection methods, motor mounting plate 27 and electricity can also be used Reset motor spring 28 is installed, when 27 slid inward of motor mounting plate, reset motor spring 28 compresses between machine mounting groove 26 Power is stored, when switching knife rest, motor stalls, driven terminal pad 10 is led at this time since effect of inertia can rotate a period of time The circular arc face contact of dynamic terminal pad 13 and the protrusion in driven terminal pad 10, can be such that motor 12 moves backward, and motor is installed at this time Plate 27 also slides backward compression motor reset spring 28, and after knife rest leaves the position connecting with motor 12, motor 12 is in motor The effect of reset spring 28 is lower to be resetted.

Embodiment nine is equipped with the fixation briquetting of arc-shaped on the basis of example 1 on 2 inner wall of knife rest shell 201, when fixed briquetting 201 is engaged with circular arc briquetting 16, cutter ladder 7, cutoff knife rack 8, knife board 9 can be made in knife rest crossbeam The connection with motor 12 is realized in sliding in 6, and the top of knife rest shell 2 is provided with feed inlet 202, opens on the right side of knife rest shell 2 There is storage box installing port 203, sliding is placed with storage box 204 in storage box installing port 203, and the bone through crushed can fall into receipts In case 204, the top of the bull stick 3 is equipped with rotating handles 29, and operator can rotate bull stick 3 by rotating handles 29.

When specific operation, it when cutter ladder 7 is in, and state is connected to motor, needs to switch to cutoff knife rack 8 at this time, firstly, It should stop motor 12, driven terminal pad 10 is disconnected with active terminal pad 13 at this time, then rotates rotating handles 29, bull stick 3 With blade holder turns, when the circular arc briquetting 16 on cutter ladder 7 is gradually gradually disengaged with fixed briquetting 201, cutter ladder 7 is by knife rest Reset spring 15 resets, and opens motor 12 again at this time, continues to rotate bull stick 3, while drive bevel gear 17 also drives from mantle tooth Wheel 18, one-way wheel 19 and cam 20 rotate, and locating piece 23 are pushed up upwards when cam 20 rotates, the L shape knife rest where cutoff knife rack 8 When briquetting 201 is fixed in 5 arrival, cam 20 just arrives the top of locating piece 23 lower end surface of L shape knife rest 5, and locating piece 5 resists L shape knife Frame 5, bull stick 3 can not rotate at this time, while fixed briquetting 201 heads on the circular arc briquetting 16 on cutoff knife rack 8 and makes cutoff knife rack 8 to motor 12 is mobile, when the active terminal pad 13 in 12 rotation axis of motor rotates, gradually with 10 company of occlusion of driven terminal pad on cutoff knife rack 8 It connects, so that 802 rotation work of cutter, similarly, if switching knife board 9, using aforesaid operations.

The present invention rapidly can be such that bone uniformly crushes, and available by three knife rests being adjusted by rotation Powdered broken bone；By one-way wheel, cam and locating piece, each knife rest can be enabled accurately to be connected to motor；It is logical The cooperation for crossing fixed briquetting, circular arc briquetting and terminal pad, realizes the connection and disconnection between each knife rest and motor, can make broken Bone work becomes more easily convenient.

Claims (9)

1. a kind of broken bone device of spinal surgery specific complex including the internal main body (1) for cavity and is fixed on main body (1) The knife rest shell (2) of top, which is characterized in that be rotatably equipped with bull stick (3) in the main body (1), bull stick is fixedly mounted on (3) There are three L shape knife rest (5), rotate and be slidably fitted with respectively on three L shape knife rests (5) cutter ladder (7), cutoff knife rack (8), Knife board (9), the cutter ladder (7), cutoff knife rack (8), knife board (9) shaft on be fixedly installed with respectively positioned at L shape knife rest (5) the driven terminal pad (10) on the inside of, the motor base (11) being cased on the bull stick (3) above L shape knife rest (5), electricity It is fixedly installed with motor (12), is equipped in the rotation axis of motor (12) active terminal pad (13), described turn on machine base (11) It is fixedly installed with the drive bevel gear (17) in main body (1) on bar (3), is rotatably equipped on the inner wall of main body (1) and master The driven wheel of differential (18) of dynamic bevel gear (17) engagement, is coaxially installed with one-way wheel (19) on the right side of driven wheel of differential (18), single It is coaxially installed with cam (20) on the right side of to wheel (19), reduction torsion spring (21), main body is installed between cam (20) and main body (1) (1) locating slot (22) of knife rest shell (2) bottom is provided with above cam (20) and run through at the top of, is slided in locating slot (22) It is dynamic that locating piece (23) are installed.

2. a kind of broken bone device of spinal surgery specific complex according to claim 1, which is characterized in that described in three L shape knife rest (5) integrally connects on the outer surface of knife rest sleeve (4) including the knife rest sleeve (4) being fixedly mounted on bull stick (3) L shape knife rest (5) there are three connecing, the top of three L shape knife rests (5) is connected with knife rest crossbeam (6) respectively.

3. a kind of broken bone device of spinal surgery specific complex according to claim 1, which is characterized in that described driven Multiple protrusions are connected on the contact surface of terminal pad (10) and active terminal pad (13), multiple protrusions enable to Driven terminal pad (10) and active terminal pad (13) connection.

4. a kind of broken bone device of spinal surgery specific complex according to claim 3, which is characterized in that the reamer Frame (7), including reamer shell (701), there are two reamer (702), two hinges for the interior rotational installation of the reamer shell (701) One end of the shaft of knife (702) rotates respectively through reamer shell (701) and is slidably mounted in knife rest crossbeam (6), wherein one It is equipped in a reamer shaft driven terminal pad (10), the left side of two reamers (702) is coaxially installed with reamer master respectively Moving gear (704) and reamer driven gear (705) are cased in two reamer shafts horizontal positioned at reamer shell (701) and knife rest Knife rest reset spring (15) between beam (6) is connected with circular arc briquetting (16) on the right side of reamer shell (701).

5. a kind of broken bone device of spinal surgery specific complex according to claim 3, which is characterized in that the cutter Frame (8), including cutter shell (801), there are two cutter (802) for the interior rotational installation of the cutter shell (801), cut described in two One end of the shaft of knife (802) rotates respectively through cutter shell (801) and is slidably mounted in knife rest crossbeam (6), wherein one It is equipped in a cutter shaft driven terminal pad (10), the left side of two cutters (802) is coaxially installed with cutter master respectively Moving gear (804) and cutter driven gear (805) are cased in two cutter shafts horizontal positioned at cutter shell (801) and knife rest Knife rest reset spring (15) between beam (6) is connected with circular arc briquetting (16) on the right side of cutter shell (801).

6. a kind of broken bone device of spinal surgery specific complex according to claim 3, which is characterized in that the sharpening Frame (9), including sharpening shell (901), there are two sand roller (902) for the interior rotational installation of the sharpening shell (901), described in two One end of the shaft of sand roller (902) rotates respectively through sharpening shell (901) and is slidably mounted in knife rest crossbeam (6), In be equipped with driven terminal pad (10) in a sharpening shaft, the left side of two sand rollers (902) is coaxially installed with respectively Pacify on sharpening driving pulley (904) and sharpening driven pulley (905), sharpening driving pulley (904) and sharpening driven pulley (905) Equipped with transmission belt (906), the knife rest that is cased in two sharpening shafts between sharpening shell (901) and knife rest crossbeam (6) Reset spring (15) is connected with circular arc briquetting (16) on the right side of sharpening shell (901).

7. a kind of broken bone device of spinal surgery specific complex according to claim 1, which is characterized in that the main body (1) the top installation in there are two locating rod (24), the locating piece (23) be boss-shaped and be slidably mounted on two it is described fixed On position bar (24), the reset spring that is equipped on two locating rods (24) between locating piece (23) and main body (1) (25).

8. a kind of broken bone device of spinal surgery specific complex according to claim 1, which is characterized in that the motor It is provided on pedestal (11) motor mounting groove (26), is slidably fitted with motor mounting plate (27) in motor mounting groove (26), motor peace It is equipped in loading board (27) motor (12), reset motor spring is installed between motor mounting plate (27) and motor mounting groove (26) (28).

9. a kind of broken bone device of spinal surgery specific complex according to claim 1, which is characterized in that the knife rest The fixation briquetting (201) of arc-shaped is installed on shell (2) inner wall, is provided with feed inlet (202), knife at the top of knife rest shell (2) It is provided on the right side of rack enclosure (2) storage box installing port (203), sliding is placed with storage box in storage box installing port (203) (204), rotating handles (29) are installed at the top of the bull stick (3).