CN109998697A - Orthopedic operation assist device for bone block processing - Google Patents

Abstract

The invention discloses an orthopedic surgery aid for bone block treatment, comprising a treatment chamber; a first screening device, which is arranged above the treatment chamber and is detachably connected to the treatment chamber; and a second screening device, which is arranged in the treatment chamber The upper position of the processing chamber; the discharge hopper, which is in the shape of a funnel, is located at the lower part of the processing chamber; the processing device, which cooperates with the second screening device, is used to remove the soft tissue on the surface of the bone block after being screened by the second screening device. ; The reversible baffle plate is used to open or close the lower outlet of the discharge hopper; the discharge device is used to control the baffle plate to turn over from the state of closing the outlet of the discharge hopper during the working process of the processing device. remain tilted. By setting two screening devices, the present invention can automatically screen the bone blocks, saving time and effort; most of the bone blocks do not need to be trimmed in shape or size later, which effectively reduces the difficulty of work and improves the operation efficiency.

Description

Orthopedic surgical aids for bone fragmentation

technical field

The invention belongs to the technical field of orthopedic instruments, and in particular relates to an orthopedic surgical aid for bone block treatment.

Background technique

Orthopedic surgery often involves the transplantation of one piece of autologous bone into another. The bone block needs to be processed during transplantation. The soft tissue on the outer surface of the bone block is removed by tools or the larger bone block is selected, and the bone block is trimmed into a shape suitable for transplantation by trimming. In this way, the operation is time-consuming and labor-intensive, which greatly prolongs the operation time and increases the difficulty of the medical staff.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies of the prior art, the present invention provides an orthopedic surgical aid for bone block treatment, which can quickly and labor-savingly remove the soft tissue on the surface of the bone block.

In order to achieve the above purpose, the present invention adopts the following technical solutions: an orthopedic surgical aid for bone block treatment, comprising:

processing room;

a first screening device, located above the processing chamber and detachably connected to the processing chamber;

The second screening device is arranged at the upper position of the processing chamber;

A discharge hopper, in the shape of a funnel, is located at the lower part of the processing chamber;

a processing device, which cooperates with the second screening device and is used to remove the soft tissue on the surface of the bone block after being screened by the second screening device;

The reversible baffle plate is used to open or close the lower outlet of the discharge hopper;

A discharge device, used for controlling the baffle plate to turn over from the state of closing the outlet of the discharge hopper and maintain it in an inclined state during the working process of the processing device;

The reset component is used to drive the baffle plate to reset to the state of closing the outlet of the hopper after the processing device stops working.

In the present invention, by setting up two screening devices, the bone fragments can be automatically screened, and the excessive bone fragments are screened in the first screening device, and the unsuitable bone fragments that meet the specifications are screened out and remain in the second screening device. In this way, the operation of hand-picking bone blocks is omitted, saving time and effort; and among the screened bone blocks, if the shape and size are suitable, they can be directly used in surgery after the removal of soft tissue, without the need for later shape or The trimming of the size effectively reduces the difficulty of work and improves the efficiency of the operation; the soft tissue scraping operation of the bone block directly in the second screening device through the processing device further reduces the time-consuming operation, and secondly, compared with manual removal In terms of method, the soft tissue is removed more cleanly, and soft tissue remains less likely to occur, which reduces the possibility of infection in the affected area after surgery; due to the setting of the discharge device, the baffle plate will remove the soft tissue during the removal of the bone block. It is always in a state of being able to discharge materials, so that the previously screened non-conforming and rejected soft tissues can be directly discharged; after the soft tissue removal is completed, the baffle plate is in a closed state, and the second screening device can be screened again. After the soft tissue has been removed, the bone block screen that meets the specifications is dropped onto the baffle plate, and then the bone blocks on the baffle plate can be selected. The number of targets is small, the selection is convenient, and the selected bone blocks have better specifications. The size of the transplant needs to be matched, which saves the tedious finishing work in the later stage and further improves the work efficiency.

The first screening device comprises a screening drum, a screening piece arranged on the screening drum and a screening hole arranged on the screening piece, and the screening drum is screwed with the upper part of the treatment chamber; Furthermore, the screening drum can be disassembled and assembled relative to the treatment chamber, and the screening parts can be cleaned after the screening drum is disassembled, which is convenient for cleaning and has a good cleaning effect.

The second screening device includes a concave table arranged on the inner wall of the treatment chamber, a rotatable screen cylinder member disposed in the treatment chamber, a suspension portion disposed on the upper portion of the screen cylinder member and placed on the concave table, and a device. a plurality of sieve holes on the bottom wall of the sieve cylinder; preferably, the size of the sieve hole is set to be larger than the required bone block size, and the size of the sieve hole is set to be equal to the required bone block size, and then pass through the screen cylinder. After sieving, the bone pieces with a size slightly larger than the required size will be sieved and left in the sieve cylinder to avoid the situation that the bone pieces, small broken bones and other tissues are accumulated in the sieve cylinder and difficult to be sorted.

The processing device includes a ring of protruding teeth arranged on the outer surface of the suspension portion, a gear member meshing with the protruding teeth, a driving member for driving the gear member to rotate, and a scraping component, the scraping component can be used in the screen. When the cylinder is rotated under the drive of the driving member, the soft tissue on the surface of the bone block in the sieve cylinder is scraped off; the soft tissue is removed by the rotation of the sieve cylinder, and there is no need to set up separate equipment for the soft tissue removal operation. The combination of screening and soft tissue removal greatly reduces the investment cost and equipment volume of the equipment.

The scraping assembly includes a plurality of rows of scraping assemblies arranged on the inner wall of the treatment chamber, a plurality of track grooves arranged on the outer surface of the sieve drum and matched with the scraping assemblies, and a plurality of track grooves arranged on the sieve drum. A plurality of channels on the inner wall and a discharge trough on the bottom wall of the sieve drum communicated with the channels, the scraping assembly includes a plurality of scraping heads spaced from top to bottom, the plurality of rails The position of the groove is matched with the positions of the plurality of scraping heads, the channel is communicated with the track groove, and the lower part of the channel is communicated with the discharge groove; the distance between the inner wall of the treatment chamber and the outer wall of the sieve drum is set to A chip-falling channel is formed; during the rotation of the sieve cylinder, the bone pieces will be shaken under the action of centrifugal force and attached to the inner wall of the sieve cylinder. The inner wall of the sieve cylinder is then embedded into the channel. During the rotation of the sieve cylinder, the scraping head can scrape the soft tissue; Drop down, so as to ensure that the soft tissue on the outer surface of the bone block can be scraped evenly, and it is not easy to have local residues; The material is discharged downward through the discharge trough to avoid the accumulation of hanging materials in the sieve cylinder; the lower part of the channel is connected with the discharge trough, and the setting of the chip falling channel further accelerates the discharge speed.

The screening cylinder includes a straight cylinder part on the upper part and a circular truncated part on the lower part, and the screening part is arranged on the truncated truncated part; The inner diameter of the upper part of the sieve cylinder, and the circular truncated part at least partially extends into the sieve cylinder; under this structure, the meshing part of the convex teeth and the gear part can be blocked by the circular truncated part to prevent the material from getting stuck between the two. Occasionally equipment failure occurs, reducing equipment failure rate and reducing maintenance times.

The discharging device includes a rotating shaft passing through the central part of the baffle plate, a driving part arranged on the rotating shaft, and a transmission part which is respectively driven and matched with the driving part and the gear part. The rotation process of the gear part The transmission part can drive the drive part to drive the rotating shaft to rotate at a certain angle and then stop rotating; the opening and closing of the lower opening of the discharge hopper can be realized by the flipping of the baffle plate. The structure is simple and easy to realize. There will be inclination, and it can also play the role of guiding the material, and it is not easy to have residues when discharging; and the rotation of the gear part can drive the overturning of the baffle plate, so there is no need to set up a power source to the baffle plate. The flipping reduces the input of power source and the equipment cost of energy consumption; secondly, the baffle plate is always in a tilted state during the rotation of the gear part, and the soft tissue scraped from the bone can be directly discharged. Put it into the collecting box, and when the scraping process is completed and the scraped bone blocks need to be screened, even if the baffle is turned to the horizontal state, there will not be a lot of debris accumulated on it, which is convenient for later inspection. Screen the bone pieces that meet the specifications on the baffle plate for selection.

The angle is 60°-90°; in this case, the turning angle of the baffle plate is larger, and the opening that can be opened is larger, so that the materials accumulated on the baffle plate are more likely to fall downward.

The reset component includes a casing set on the side wall of the discharge cylinder and a generator set in the casing, the two ends of the generator are respectively connected with the casing and the rotating shaft; the generator has a good energy storage effect , After the external force on the stopper disc disappears, the condition can drive the stopper disc to quickly reset to the initial state, the reset is fast, and the reset effect is good.

The discharging device further comprises a collecting box, a cylindrical extension part is arranged on the collecting box, the rotating shaft is penetrated on the extending part, and the extending part is detachably connected with the discharging hopper; The detachable connection between the part and the discharge hopper enables the collecting box to be disassembled relative to the discharge hopper, which is convenient for taking the finally screened bone pieces that meet the specifications on the stopper plate, which is convenient for selecting the bone pieces. Clean the collecting box separately.

By setting two screening devices, the present invention can automatically screen the bone blocks, saves the operation of manually selecting the bone blocks, and saves time and effort; and among the screened bone blocks, if there are any suitable shape and size, it can be After the soft tissue is removed, it can be directly put into operation, without the need for later trimming of shape or size, which effectively reduces the difficulty of work and improves the operation efficiency; The time-consuming operation is further reduced, the residual soft tissue is less likely to occur, and the possibility of infection of the affected area after the operation is reduced.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

Figure 2 is a front view of the present invention.

FIG. 3 is a three-dimensional cross-sectional view taken along the line A-A in FIG. 2 .

FIG. 4 is an enlarged view of A in FIG. 3 .

FIG. 5 is an enlarged view of B in FIG. 3 .

FIG. 6 is a schematic diagram of the cooperation of the first and second screening devices in the present invention.

FIG. 7 is a schematic structural diagram of the discharging device in the present invention.

FIG. 8 is a schematic diagram of the structure of the driving part in the present invention.

FIG. 9 is a schematic diagram of the cooperation between the first cover shell and the collecting box in the present invention.

Detailed ways

As shown in Figures 1-9, an orthopedic surgical aid for bone block processing includes a processing chamber 1, a vibrating element, a first screening device, a second screening device, a discharge hopper 11, a processing device, and a baffle plate 2 and the reset component; the first screening device is arranged above the processing chamber 1 and is detachably connected to the processing chamber 1; the second screening device is arranged at the upper position of the processing chamber 1; the discharge hopper 11 is arranged in a funnel-shaped structure , fixedly connected to the lower position of the treatment chamber 1; the treatment device cooperates with the second screening device to remove the soft tissue on the surface of the bone block after being screened by the second screening device; the baffle plate 2 can be turned over , used to open or close the lower outlet of the discharge hopper 11; the discharge device is used to control the baffle plate 2 to turn over from the state of closing the outlet of the discharge hopper 11 and maintain it in a tilted state during the working process of the processing device; reset The component is used to drive the baffle plate 2 to return to the state of closing the outlet of the hopper 11 after the processing device stops working.

Specifically, the first screening device includes a screening drum 31, a screening member 32 provided on the screening drum, and a screening hole 33 provided on the screening member. The screening drum 31 is made of metal , the screening member is a metal circular plate, which is fixed on the lower part of the screening cylinder, and the screening holes are arranged in a plurality of uniform intervals on the screening member. The upper part of the screening cylinder and the upper part of the treatment chamber 1 are The screw connection is convenient for cleaning the screening parts after the screening drum is disassembled. The cleaning is convenient and the cleaning effect is good; 41 is an annular gap arranged on the inner wall of the treatment chamber, the sieve cylinder member 42 is made of metal, and has an opening on the upper part, which is rotatably arranged in the treatment chamber, and the hanging portion 43 is formed at the upper position of the sieve cylinder member 42, preferably In order to be formed by extending outward from the upper end of the sieve cylinder, the hanging portion is placed on the above-mentioned boss and can be rotated relative to the boss; the sieve holes 44 are arranged in multiples, and are arranged on the bottom wall of the sieve cylinder at uniform intervals; wherein , the size of the sieving hole is set to be larger than the required size of the bone block, the size of the screen hole is set to be equal to the required size of the bone block, and then after being screened by the sieve cylinder, the size of the bone block slightly larger than the required size of the bone block is sieved. The sieve is kept in the sieve cylinder to avoid the situation that bone pieces, small broken bones and other tissues are accumulated in the sieve cylinder and difficult to be sorted; the vibrating part is a commercially available exciter, Connected to the treatment chamber, when the vibrating element is activated, it can drive the screening drum and the screening drum to perform screening operations at the same time.

The above-mentioned treatment device includes a ring of protruding teeth 51, a gear member 52, a driving member and a scraping component, and the scraping component can rub the bone in the sieve cylinder member 42 when the sieve cylinder member 42 is rotated under the driving of the driving member. The soft tissue on the surface of the block is scraped off; specifically, a ring of protruding teeth 51 is provided on the outer surface of the suspension portion, the gear member 52 is a metal gear, and meshes with the protruding teeth, and the above-mentioned driving member is a commercially available motor. The scraper is connected to the output shaft of the motor, and when the drive member is activated, the gear member can be driven to rotate; the scraper assembly includes multiple rows of scraper assemblies, multiple track grooves 54, multiple scraper assemblies arranged on the inner wall of the processing chamber 1 There are channels 55 and discharge grooves 56, the multiple rows of scraping components are evenly spaced on the inner wall of the processing chamber along the circumferential direction of the processing chamber, and each set of scraping components includes a plurality of scraping components distributed from top to bottom. A scraping head 57, the scraping head can be made of plastic or metal; a plurality of channels 55 are evenly distributed on the side wall of the sieve drum along the circumferential direction of the sieve drum. The position of the track groove 54 corresponds to the positions of the plurality of scraping heads, and the channel 55 is communicated with the track groove 54; during the rotation of the screen drum, the bone fragments will be shaken and attached under the action of centrifugal force On the inner wall of the sieve cylinder, since the soft tissue has a certain flexibility, the bone fragments will be embedded in the channel after being attached to the inner wall of the sieve cylinder. During the rotation of the sieve cylinder, the scraping head can scrape the soft tissue. In addition, in the process of scraping, the bone block will be flipped to a certain extent, but it will not fall down, so as to ensure that the soft tissue on the outer surface of the bone block can be scraped evenly, and it is not easy to have local residues. .

There are also multiple discharge troughs 56. The multiple discharge troughs 56 are arranged on the bottom wall of the sieve cylinder, and each discharge trough 56 is set corresponding to a channel. Preferably, the lower part of the channel is connected to the discharge trough 56 Connected, and the distance between the inner wall of the treatment chamber 7 and the outer wall of the sieve cylinder member 42 is to form a chip dropping channel 58; the size of the discharge trough is set to be smaller than the size of the sieve hole, and the soft tissue hung by the scraping head can directly pass through the discharge trough It is discharged downward to avoid the accumulation of hanging materials in the sieve cylinder; the lower part of the channel is connected with the discharge chute, and the setting of the chip falling channel further speeds up the discharge speed.

The screening cylinder 31 includes a straight cylinder portion 311 on the upper portion and a circular truncated portion 312 on the lower portion, and the screening member 32 is fixedly connected to the truncated truncated portion; The inner diameter of the lower opening of the circular truncated portion 312 is smaller than the inner diameter of the upper portion of the sieve cylinder member 42, and the lower portion of the circular truncated portion 312 extends into the sieve cylinder member 42; The meshing place is shielded to avoid the equipment failure caused by the material stuck between the two, reducing the failure rate of the equipment and reducing the number of maintenance.

Specifically, the discharging device includes a rotating shaft 61, a driving part 62, a transmission part and a collecting box 63. The rotating shaft 61 is passed through the central part of the baffle plate 2, and the driving part 62 is arranged on the rotating shaft; the upper part of the collecting box extends upward. A cylindrical extension part 631 is formed, and the extension part 631 is detachably connected with the discharge hopper 11; the rotating shaft 61 is passed through the extension part 631, and the end part is penetrated to the outside of the extension cylinder; preferably, The driving part 62 includes a disk body 621 and a driving protruding tooth 622, the disk body 621 is provided on one end of the rotating shaft passing out of the extension part, and the driving protruding tooth 622 is provided on the outer surface of 2/5-2/3 of the disk body; Preferably, the setting area of the driving protruding teeth 622 is 1/2 of the outer surface of the disk; the transmission component is respectively in driving cooperation with the driving component and the gear component, and during the rotation of the gear component 52, the transmission component can The transmission drive part drives the rotating shaft 61 to rotate at a certain angle and then stops rotating; specifically, when the rotating shaft rotates to the point where the part of the disc body that is not provided with the driving convex teeth is matched with the driving gear, the stopper disc will no longer be flipped, even if the driving gear has been In the rotating state, the baffle discs are maintained in an inclined position; the turning angle is preferably 60°-90°, preferably 70°; and the opening and closing of the lower opening of the discharge hopper is realized by the turning of the baffle disc. Closed, simple structure, easy to realize, the turning of the stopper plate will have an inclination, and it can also play the role of guiding the material, and it is not easy to have residues when discharging; and the stopper circle can be driven by the rotation of the gear part. The plate is turned over, so that there is no need to set up a power source to flip the baffle plate, which reduces the input of the power source and the equipment cost of energy consumption; secondly, the baffle plate is always inclined during the rotation of the gear part. Then, the soft tissue scraped from the bone blocks can be directly discharged into the collecting box, and when the scraping process is completed and the scraped bone blocks need to be screened, the baffle plate is turned to the horizontal state even if the scraping process is completed. , it will not accumulate more debris on it, which is convenient for the later selection of the bones that meet the specifications and fall on the baffle plate.

The reset component includes a casing 71 arranged on the side wall of the discharging cylinder and a hair spring 72 arranged in the casing. The hair spring 72 is a common spring that can be purchased on the market, and the two ends of the hair spring are respectively It is connected with the cover 71 and the rotating shaft 61; the generator has a good energy storage effect. After the external force received by the baffle plate disappears, the generator can drive the baffle plate to quickly reset to the initial state, the reset is fast, and the reset effect is good.

The above-mentioned transmission components include a first protective cover 81 disposed on the side of the processing chamber, a second protective cover 82 disposed on the collecting box, a transmission gear 83 disposed in the first protective cover, and a central shaft 84 , The drive gear 85, the rotating central shaft 86, the first helical gear 87 and the second helical gear 88 are arranged in the second protective cover. The first protective cover 81 and the second protective cover 82 are both metal shells, respectively It is fixedly connected to the side wall of the processing chamber and the collecting box; the central shaft 84 is set on the transmission gear, the rotating central shaft 86 is set on the driving gear, the first helical gear 87 is set on the rotating central shaft, the first The helical gear 87 meshes with the second helical gear 88, and the central part of the second helical gear 88 has a transmission shaft 881, which partially penetrates out of the second protective cover 82; the transmission gear 83 meshes with the gear member, The driving gear 85 is in driving cooperation with the driving part, and a rotation-stop connecting structure is provided between the central shaft 84 and the transmission shaft 881 . When the extension part 631 is connected with the discharge hopper 11 , the central shaft 84 and the transmission shaft 881 are connected to each other. Rotation and coordination; each component is effectively covered and protected by the protective cover to avoid failure due to exposure between the gears. Secondly, through the gears, helical gears, etc., the transmission effect is good and the kinetic energy loss is less; and through the helical gears With cooperation, the power transmission can be turned to ensure that the baffle plate and the screen cylinder can be moved simultaneously through a driving member, reducing the input of the power source, saving energy consumption and reducing costs; under this structure, it is guaranteed After the collecting hopper is installed to the lower part of the discharging hopper, the transmission shaft cooperates with the central shaft to avoid transmission failure caused by the disassembly and assembly of the collecting box;

Specifically, the anti-rotation connecting structure includes a plurality of opening grooves 91 arranged at the lower part of the central shaft 84 evenly spaced in the circumferential direction, a rotation-stop convex portion 92 formed between the two opening grooves, and a plurality of opening grooves 92 formed on the transmission shaft There are a plurality of anti-rotation concave parts 93 matched with the anti-rotation convex part. The positions of the plurality of anti-rotation concave parts are set corresponding to the positions of the anti-rotation convex parts. When the central shaft is inserted into the transmission shaft, the anti-rotation convex parts will be inserted into into the rotation stop recess.

The specific working principle is as follows. After pouring the broken bone pieces to be screened into the screening drum, start the vibrating element. During the vibration process of the screening drum and the screening drum piece, some of the bone blocks pass through the screening holes and fall down to the screen. On the cylinder, then the bone pieces smaller than the sieve hole will fall down, and the bone pieces slightly larger than the required size will be left in the sieve cylinder; then the vibrating part will be turned off, the driving part will be activated, and the sieve cylinder will be driven. During the rotation, the bone fragments are removed by the scraping head to remove the soft tissue on the outer surface; after a period of time, the sieve cylinder stops rotating, and then starts the vibrating member again, so that the bone fragments whose size is smaller than the sieve hole or just equal to the sieve hole go down Drop it onto the baffle plate; then remove the collecting box, pick out the bone blocks that meet the specifications from the baffle plate, and transplant them after appropriate trimming or direct transplantation according to actual needs.

Claims (10)

1. an orthopedic surgery aid for bone block processing, characterized in that: comprising: processing chamber (1); a first screening device, located above the processing chamber (1) and detachably connected to the processing chamber (1); The second screening device is arranged at the upper position of the processing chamber (1); A discharge hopper (11), in the shape of a funnel, is arranged at the lower part of the processing chamber (1); a processing device, which cooperates with the second screening device and is used to remove the soft tissue on the surface of the bone block after being screened by the second screening device; A reversible material baffle plate (2) is used to open or close the lower outlet of the discharge hopper (11); A discharge device, used to control the baffle plate (2) to turn over from the state of closing the outlet of the discharge hopper (11) and maintain it in an inclined state during the working process of the processing device; The reset component is used to drive the baffle plate (2) to reset to the state of closing the outlet of the discharge hopper (11) after the processing device stops working. 2. The orthopaedic surgical aid for bone block treatment according to claim 1, wherein the first screening device comprises a screening cylinder (31), a screening member (31) disposed on the screening cylinder 32) and the screening hole (33) provided on the screening member, the screening cylinder (31) and the upper part of the treatment chamber (1) are screwed together. 3. The orthopaedic surgical aid for bone block treatment according to claim 2, characterized in that: the second screening device comprises a concave table (41) arranged on the inner wall of the treatment chamber, a rotatable one arranged in the treatment chamber The sieve drum (42) in the room, the hanging part (43) arranged on the upper part of the sieve drum and placed on the concave platform, and a plurality of sieve holes (44) arranged on the bottom wall of the sieve drum. 4. The orthopaedic surgical aid for bone block treatment according to claim 3, wherein the treatment device comprises a ring of protruding teeth (51) arranged on the outer surface of the suspension portion, and the protruding teeth The meshing gear member (52), a driving member for driving the gear member to rotate, and a scraping assembly, the scraping assembly can be used to rotate the screen cylinder member (42) under the driving of the driving member. 42) Curettage of soft tissue within the surface of the bone block. 5. The orthopaedic surgical aid for bone block treatment according to claim 4, characterized in that: the curettage assembly comprises multiple rows of curettage assemblies arranged on the inner wall of the treatment chamber (1), A plurality of track grooves (54) matched with the scraping assembly on the outer surface of the sieve cylinder member (42), a plurality of channels (55) provided on the inner wall of the sieve cylinder member (42), and a plurality of channels (55) provided on the sieve cylinder A discharge groove (56) on the bottom wall of the piece communicated with the channel, the scraping assembly includes a plurality of scraping heads (57) spaced from top to bottom, and the plurality of track grooves (54) are The positions are matched with the positions of a plurality of scraping heads (57), the channel (55) is communicated with the track groove (54), and the lower part of the channel is communicated with the discharge groove (56); the processing chamber (7) The distance between the inner wall and the outer wall of the sieve drum member (42) is to form a chip falling channel (58). 6. The orthopaedic surgical aid for bone fragment treatment according to claim 3, characterized in that: the screening cylinder (31) comprises an upper straight cylinder part (311) and a lower circular truncated part (312), the The screening member (32) is arranged on the circular truncated portion; the circular truncated portion (312) is arranged in a structure with a large upper portion and a small lower portion, and the inner diameter of the lower opening of the circular truncated portion (312) is smaller than the inner diameter of the upper portion of the sieve cylinder member (42). , and the circular truncated portion (312) at least partially protrudes into the sieve drum member (42). 7. The orthopedic surgery aid for bone block treatment according to claim 4, characterized in that: the discharging device comprises a rotating shaft (61) passing through the center of the baffle plate (2), a device In the driving part (62) on the rotating shaft and the transmission parts which are respectively driven and matched with the driving part and the gear part, during the rotation of the gear part (52), the transmission part can drive the drive part to drive the rotating shaft (61). ) and stop rotating after a certain angle. 8 . The orthopaedic surgical aid for bone block treatment according to claim 7 , wherein the angle is 60°-90°. 9 . 9. The orthopaedic surgical aid for bone fragment treatment according to claim 7, characterized in that: the repositioning component comprises a cover (71) provided on the side wall of the discharge cylinder and a cover provided on the cover A hairpin (72) is installed inside, and both ends of the hairpin (72) are respectively connected with the casing (71) and the rotating shaft (61). 10. The orthopaedic surgical aid for bone fragment treatment according to claim 7, characterized in that: the discharging device further comprises a collecting box (63), and the collecting box is provided with a cylindrical extension (63). 631), the rotating shaft (61) passes through the extension part (631), and the extension part (631) is detachably connected to the discharge hopper (11).