Intraoperative autogenous bone granule crushing device
By designing the bone-crushing ring and filter frame in the bone-crushing device, the problem of uneven bone crushing was solved, achieving uniform crushing and screening of autologous bone particles and ensuring the stability and consistency of the crushed bone material.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-04-14
AI Technical Summary
In the existing autologous bone crushing process, the crushed bone fragments need to be screened and collected in a unified manner to ensure that the particles that meet the size requirements are not crushed into small particles. However, bone fragments from different parts and different batches cannot be crushed into small particles evenly and fully, resulting in inconsistent bone crushing effects.
An intraoperative autologous bone fragmentation device was designed, comprising an outer bone fragmentation cylinder, an inner bone fragmentation cylinder, a pulverizing structure, a drive unit, a bone fragmentation ring, and a filter frame. The bone fragmentation ring moves up and down under the action of the bidirectional threaded structure, and combined with the pulverizing structure of the inner and outer cylinders, multi-dimensional fragmentation is achieved. The filter frame then filters the particles to ensure the uniformity of the bone fragments.
It achieves uniform pulverization of autologous bone particles, meets the strict requirements for small particles during surgery, and improves the stability and consistency of bone fragments.
Smart Images
Figure CN224112831U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical technology, and in particular to an intraoperative autologous bone fragmentation device. Background Technology
[0002] During surgical procedures, when the patient's own bone tissue is needed for subsequent treatment, a bone-crushing device is used to break it down into small particles.
[0003] It is widely used in various orthopedic surgeries, such as bone defect repair surgery after fracture, bone volume supplementation in joint replacement surgery, and promoting intervertebral bone fusion in spinal fusion surgery; it also plays an important role in alveolar bone repair and orthognathic surgery in oral and maxillofacial surgery, as well as in some surgeries involving bone tissue shaping and repair in plastic surgery.
[0004] In the prior art, during the process of autologous bone fragmentation, the fragmented bone material needs to be screened and collected in a uniform manner to ensure that the bone fragments from different parts and different batches can be uniformly and fully crushed into small particles to achieve the ideal consistency of bone fragmentation effect. Therefore, this application provides an intraoperative autologous bone small particle fragmentation device to meet the requirements. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide an intraoperative autologous bone fragmentation device to address the issue that existing autologous bone fragmentation processes require screening of the fragmented bone material to ensure uniform collection of particles of the appropriate size, thus preventing the uniform and thorough pulverization of bone fragments from different parts and batches into small particles, and thus ensuring consistent bone fragmentation results.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an intraoperative autologous bone fragmentation device, comprising: an outer bone fragmentation cylinder; an inner bone fragmentation cylinder located within the outer bone fragmentation cylinder; a crushing structure installed on the inner bone fragmentation cylinder; a driving unit located on the inner bone fragmentation cylinder for driving the inner bone fragmentation cylinder to rotate; a bone fragmentation ring located on the inner wall of the outer bone fragmentation cylinder and threadedly connected to the inner wall of the outer bone fragmentation cylinder; a transmission rod installed on the driving unit and rotating with the driving unit; and several sets of telescopic rods installed on the transmission rod and connected to the clavicle ring.
[0007] Preferably, the inner wall of the bone fragment outer cylinder is provided with a bidirectional thread structure so that the bone fragment ring can move upward or downward in the bone fragment outer cylinder during rotation.
[0008] Preferably, the top of the inner bone fragment cylinder is inclined, and the inclination direction is from the central axis of the inner bone fragment cylinder to the outer bone fragment cylinder.
[0009] Preferably, the bottom of the bone fragment inner cylinder is inclined, and the inclination direction is from the side wall of the bone fragment inner cylinder to the central axis of the bone fragment inner cylinder.
[0010] Preferably, a crushing structure is installed on the inner wall of the bone crushing ring so that the bone crushing ring cooperates with the inner cylinder of the bone crushing ring to crush bone fragments during movement.
[0011] Preferably, the device further includes a filter frame, which is installed at the bottom of the inner cylinder of the bone crusher and rotatably connected to the outer cylinder of the bone crusher, for filtering bone crushed material.
[0012] Preferably, the filter frame includes: a first annular plate installed at the bottom of the inner cylinder of the bone fragments; a second annular plate installed at the bottom of the outer cylinder of the bone fragments; multiple sets of support rods evenly installed between the first annular plate and the second annular plate; and multiple sets of filter screens, with one set of filter screens installed between every two sets of support rods.
[0013] Preferably, it further includes: an annular groove, formed at the bottom of the bone fragment outer cylinder, and configured such that a second annular plate slides in the annular groove.
[0014] Compared with the prior art, this utility model has at least the following beneficial effects: In the above solution, by setting the crushing structure on the inner cylinder of the bone fragment and the crushing structure on the inner wall of the bone fragment ring to cooperate with each other, and the bone fragment ring can move up and down in the outer cylinder of the bone fragment through the bidirectional thread structure, the bone fragment material is crushed from multiple dimensions. Compared with the prior art, it can more effectively make the bone fragment particles more uniform in size, meet the strict requirements for the size and uniformity of small bone fragments during surgery, and help the stable performance of the bone fragment material when used in subsequent surgeries. Attached Figure Description
[0015] Furthermore, the accompanying drawings, which form part of this specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of the top of the bone-crushing outer cylinder in this utility model;
[0018] Figure 3 This is a schematic diagram of the internal structure of the bottom of the bone-crushing outer cylinder in this utility model;
[0019] Figure 4 This is a schematic diagram of the structure of some components in this utility model.
[0020] [Figure Labels]
[0021] 1. Outer cylinder of bone fragments; 2. Inner cylinder of bone fragments; 3. Drive unit; 4. Bone fragment ring; 5. Transmission rod; 6. Telescopic rod; 7. Bidirectional threaded structure; 8. Crushing structure; 9. Filter frame; 10. First annular plate; 11. Second annular plate; 12. Support rod; 13. Filter screen; 14. Annular groove.
[0022] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation
[0023] The following is a detailed description of an intraoperative autologous bone fragmentation device provided by this utility model, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.
[0024] Example 1: As Figures 1 to 4 As shown, an embodiment of this utility model provides an intraoperative autologous bone fragmentation device, comprising: an outer bone fragmentation cylinder 1; an inner bone fragmentation cylinder 2 located within the outer bone fragmentation cylinder 1; a crushing structure 8 installed on the inner bone fragmentation cylinder 2; a driving unit 3 located on the inner bone fragmentation cylinder 2 for driving the inner bone fragmentation cylinder 2 to rotate; a bone fragmentation ring 4 located on the inner wall of the outer bone fragmentation cylinder 1 and threadedly connected to the inner wall of the outer bone fragmentation cylinder 1; a transmission rod 5 installed on the driving unit 3 and rotating with the driving unit 3; and several sets of telescopic rods 6 installed on the transmission rod 5 and connected to the clavicle ring.
[0025] like Figure 2 As shown, the inner wall of the bone fragment outer cylinder 1 is provided with a bidirectional thread structure 7 so that the bone fragment ring 4 can move upward or downward in the bone fragment outer cylinder 1 during rotation.
[0026] like Figure 2 As shown, the top of the inner bone fragment cylinder 2 is inclined, and the inclination direction is from the central axis of the inner bone fragment cylinder 2 to the outer bone fragment cylinder 1.
[0027] like Figure 3 As shown, the bottom of the bone fragment inner cylinder 2 is inclined, and the inclination direction is from the side wall of the bone fragment inner cylinder 2 to the central axis of the bone fragment inner cylinder 2.
[0028] It should be noted that, due to the inclined top of the inner bone crushing cylinder 2 (the inclination direction is from the central axis of the inner bone crushing cylinder 2 to the outer bone crushing cylinder 1), the material will flow reasonably along the inclined surface to the interior and surrounding area of the inner bone crushing cylinder 2, which facilitates more comprehensive contact with the crushing structure 8 for crushing.
[0029] like Figures 2 to 4 As shown, a crushing structure 8 is installed on the inner wall of the bone crushing ring 4 so that the bone crushing ring 4 can cooperate with the inner bone crushing cylinder 2 to crush bone materials during the movement.
[0030] like Figures 3 to 4 As shown in Embodiment 2, the device further includes a filter frame 9, which is installed at the bottom of the inner cylinder 2 of the bone crusher and is rotatably connected to the outer cylinder 1 of the bone crusher, for filtering bone crushed materials.
[0031] like Figure 4 As shown, the filter frame 9 includes: a first annular plate 10, installed at the bottom of the inner tube 2 of the bone fragments; a second annular plate 11, installed at the bottom of the outer tube 1 of the bone fragments; multiple sets of support rods 12, evenly installed between the first annular plate 10 and the second annular plate 11; and multiple sets of filter screens 13, with one set of filter screens 13 installed between every two sets of support rods 12.
[0032] like Figure 3 As shown, it also includes: an annular groove 14, which is opened at the bottom of the bone fragment outer cylinder 1 and is configured to allow the second annular plate 11 to slide in the annular groove 14.
[0033] The technical solution provided by this utility model involves feeding the aggregate to be crushed into the feed port at the top of the outer crushing cylinder 1. Then, the drive unit 3 is turned on, causing it to drive the inner crushing cylinder 2 to start rotating. The crushing structure 8 installed on the inner crushing cylinder 2 and the inner wall of the outer crushing cylinder 1 are used to perform preliminary crushing of the autologous bone material fed into it.
[0034] As the drive unit 3 drives the transmission rod 5 to rotate, the telescopic rod 6 on the transmission rod 5 drives the bone crushing ring 4 to rotate. Under the action of the threaded structure on the inner wall of the outer bone crushing cylinder 1, the bone crushing ring 4 begins to move up and down. At the same time, the crushing structure 8 on the inner wall of the bone crushing ring 4 cooperates with the crushing structure 8 on the inner bone crushing cylinder 2 to further crush the autologous bone material. The material is crushed from different angles and directions, making it gradually become smaller particles. The bone crushing ring 4 will move up and down repeatedly in the outer bone crushing cylinder 1 according to the bidirectional threaded structure 7, continuously enhancing the crushing effect and ensuring that the material is fully crushed into small particles.
[0035] It is important to note that during the bone crushing process, operators must closely monitor the device's operation, including the operation of the drive unit 3 (e.g., whether the rotation speed is stable, whether there are any abnormal noises), and the coordination between the inner crushing cylinder 2 and the crushing ring 4 (whether there is any jamming, abnormal collision, etc.). If the size of the bone fragments is found to be unacceptable or the bone crushing efficiency is unsatisfactory, the crushing force and speed can be adjusted by adjusting the relevant parameters of the drive unit 3 (e.g., appropriately increasing or decreasing the rotation speed, changing the torque, etc.) to ensure that the bone crushing operation proceeds as expected.
[0036] After being crushed, the material falls onto the filter rack 9. Under the continuous rotation of the inner crushing cylinder 2 and the slight vibration of the entire device, the crushed material spreads out on the filter rack 9 and is filtered through multiple sets of filter screens 13. Small crushed bone particles that meet the size requirements will fall through the filter screens 13 to the bottom collection area of the outer crushing cylinder 1, while larger crushed bone particles that do not meet the size requirements will remain above the filter screens 13.
[0037] If the filter screen 13 is found to be clogged during the filtration process, resulting in a significant slowdown in filtration speed or poor filtration effect, the operation of the device can be stopped, the filter frame 9 can be removed from the annular slide groove 14 (taking advantage of its easy disassembly design), the filter screen 13 can be cleaned to remove impurities such as bone fragments that clog the mesh, and after cleaning, the filter frame 9 can be installed back in its original position to continue the filtration operation.
[0038] After completing the bone fragmentation and filtration processes to obtain small bone fragments that meet the requirements, the drive unit 3 is shut down, and the device is allowed to completely stop operating. The entire device is then cleaned. The collected bone fragments are removed and properly stored for surgical use. Next, the outer bone fragment cylinder 1, inner bone fragment cylinder 2, bone fragment ring 4, and filter frame 9 are cleaned and disinfected to remove any residual bone fragments and any potential contaminants, ensuring the device is clean and hygienic for future use.
[0039] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art can fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits have not been described in detail.
[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An intraoperative autologous bone fragment fragmentation device, characterized in that, include: Bone fragment outer tube (1); The inner tube (2) of the bone fragments is located in the outer tube (1) of the bone fragments; a crushing structure (8) is installed on the inner tube (2); The drive unit (3) is located on the inner tube (2) of the bone fragments and is used to drive the inner tube (2) of the bone fragments to rotate; The bone fragment ring (4) is located on the inner wall of the outer tube (1) of the bone fragment ring and is threadedly connected to the inner wall of the outer tube (1); The transmission rod (5) is mounted on the drive unit (3) and rotates with the drive unit (3); Several sets of telescopic rods (6) are installed on the transmission rod (5) and connected to the clavicle ring.
2. The intraoperative autologous bone fragment fragmentation device according to claim 1, characterized in that, The inner wall of the bone fragment outer cylinder (1) is provided with a bidirectional thread structure (7) so that the bone fragment ring (4) can move upward or downward in the bone fragment outer cylinder (1) during rotation.
3. The intraoperative autologous bone fragment fragmentation device according to claim 1, characterized in that, The top of the inner bone fragment cylinder (2) is inclined, and the inclination direction is from the central axis of the inner bone fragment cylinder (2) to the outer bone fragment cylinder (1).
4. The intraoperative autologous bone fragment fragmentation device according to claim 1, characterized in that, The bottom of the bone fragment inner cylinder (2) is inclined, and the inclination direction is from the side wall of the bone fragment inner cylinder (2) to the central axis of the bone fragment inner cylinder (2).
5. The intraoperative autologous bone fragment fragmentation device according to claim 1, characterized in that, The inner wall of the bone-crushing ring (4) is equipped with a crushing structure (8) so that the bone-crushing ring (4) can cooperate with the bone-crushing inner cylinder (2) to crush bone materials during the movement process.
6. The intraoperative autologous bone fragment fragmentation device according to claim 1, characterized in that, The device further includes: The filter frame (9) is installed at the bottom of the inner cylinder (2) of the bone crusher and is rotatably connected to the outer cylinder (1) of the bone crusher for filtering bone crushed materials.
7. The intraoperative autologous bone fragment fragmentation device according to claim 6, characterized in that, The filter holder (9) includes: The first annular plate (10) is installed at the bottom of the bone fragment inner cylinder (2); The second annular plate (11) is installed at the bottom of the bone fragment outer tube (1); Multiple sets of support rods (12) are evenly installed between the first annular plate (10) and the second annular plate (11); Multiple sets of filter screens (13), with one set of filter screens (13) installed between every two sets of support rods (12).
8. The intraoperative autologous bone fragment fragmentation device according to claim 7, characterized in that, Also includes: An annular groove (14) is provided at the bottom of the bone fragment outer cylinder (1) and is configured such that a second annular plate (11) slides in the annular groove (14).