Automatic screw loading mechanism of orthopedic acceptance equipment
By designing an automatic loading mechanism in orthopedic acceptance equipment, using two-axis moving units, continuous loading structures and integrated unloading structures, the problem of slow artificial loading speed of bone nails is solved, the loading efficiency is improved and the acceptance process is optimized.
Patent Information
- Application Number
- CN202520482997.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2035-03-19
AI Technical Summary
The artificial loading speed of bone nails is slow, which affects acceptance efficiency, resulting in delays in surgical planning and increased patient waiting time.
Design a screw automatic loading mechanism for orthopedic acceptance equipment, adopting a two-axis moving unit, a continuous loading structure and an integrated unloading structure to realize the automatic loading and unloading of bone nails.
It significantly improves the loading efficiency of bone nails, reduces positioning deviation and time waste in manual operations, solves the problem of slow manual loading speed, and optimizes the entire orthopedic acceptance process.
Smart Images
Figure CN222833598U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bone screw loading, and more specifically to an automatic screw loading mechanism of orthopedic acceptance equipment. Background Art
[0002] Bone screws are an important medical device that plays a major role in fixation during orthopedic surgery. Generally speaking, bone screws used in orthopedic surgery will have identification information such as numbers, usually in the form of steel stamps, etc. These numbers are mainly used for product traceability, quality control, and medical records, making it easier to understand the production batch, model specifications, and other specific information of the bone screws, so that they can be effectively tracked and handled when problems arise.
[0003] In order to ensure the smooth progress of the operation, relatively sufficient surgical supplies are usually prepared. However, bone screws have various specifications. The bone size, shape and specific conditions of the surgical site of different patients are different. It is necessary to select the most suitable bone screw specifications according to actual measurement and observation during the operation; and some unexpected situations may occur during the operation, such as the bone quality of the originally selected bone screw is found to be unsuitable when implanted, or the bone screw is damaged during the implantation process. Having more spare bone screws allows doctors to replace them in time without having to find suitable bone screws temporarily, thus ensuring that the operation can continue as planned and reducing the operation time and patient risks. Therefore, a whole box of bone screws is usually prepared for backup. A box of bone screws has 100-200 bone screws. These bone screws need to be paired and safety inspected in order to prepare for the operation; during the operation, only 5-10 bone screws will actually be used, and the rest need to be cleaned after the operation, and then numbered and paired again after cleaning; secondly, when the bone screws are cleaned in the cleaning equipment, there may be scratches and marks, which can be judged by the equipment; the safety of the bone screws is judged according to the degree of wear.
[0004] Therefore, the bone screws need to be inspected both before and after the operation. However, since the bone screws themselves are very small, the stamped numbers on their surfaces are even smaller. Conventionally, a magnifying glass (similar to mechanical watch maintenance) is required to observe the surface numbers of the bone screws and match them with the certificate of conformity. However, observation is difficult and the workload is large. In addition, the traditional acceptance method mainly involves manually loading the bone screws one by one onto the tray, and then inspecting them one by one. However, manual loading of bone screws is slow, which seriously affects the efficiency of acceptance. Especially when the demand for bone screws is large, the slow loading speed will delay the entire acceptance process, resulting in delays in the subsequent surgical use plan, increasing patient waiting time and hospital operating costs. In view of this, we propose an automatic screw loading mechanism for orthopedic acceptance equipment. Summary of the invention
[0005] The utility model aims to overcome the shortcomings of the prior art, meet practical needs, and provide an automatic screw loading mechanism for orthopedic acceptance equipment to solve the technical problem of slow manual loading of bone screws.
[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: an automatic screw loading mechanism of an orthopedic acceptance device, comprising a two-axis moving unit arranged inside the acceptance device body, the two-axis moving unit consisting of a horizontal loading screw and a vertical loading screw, a loading room connecting handle is installed at the moving end of the vertical loading screw, a loading hydraulic rod is installed at one end of the loading room connecting handle, a loading track is fixed to the driving end of the loading hydraulic rod, a loading slide is opened at the center of the loading track, and an unloading circular cavity with a circular cross-section is opened on both sides of the inner wall of the loading track, a loading joint control plate is arranged inside the unloading circular cavity, a continuous loading structure is arranged below the loading joint control plate, an integrated unloading structure is also arranged on the outer periphery of the continuous loading structure, a loading tray is arranged below the two-axis moving unit, and a loading port is opened on the loading tray.
[0007] Preferably, the continuous loading structure comprises a plurality of loading wheels, the plurality of loading wheels are distributed at equal distances, loading interlocking control gears are arranged on top of the loading wheels, and adjacent loading interlocking control gears are meshed with each other.
[0008] Preferably, the loading wheel includes a central shaft connected to the loading linkage gear, a circular body is connected to the outer periphery of the central shaft, a one-way bearing is installed on the outer periphery of the circular body, a loading clamp ring is connected to the outer ring of the one-way bearing, a plurality of loading grooves are opened on the outer periphery of the loading clamp ring, a loading outer fixed arc is bonded to the inner arc of the loading groove, the loading outer fixed arc is an arc surface structure convex outward from the center, and the loading outer fixed arc is in contact with the bone screw.
[0009] Preferably, the loading outer fixed arc is made of a rubber material with a spring, and a resistance ring is fixed to the side area between the round body and the one-way bearing.
[0010] Preferably, the integrated unloading structure includes two unloading extension columns connected to the two ends of the central axis, the unloading extension columns are rotatably connected to the loading linkage control plate, and unloading sliders are installed at the ends of the unloading extension columns. The unloading sliders and the unloading circular cavity are limited sliding, and the sliding track is annular.
[0011] Preferably, two unloading hydraulic rods are installed on the top of the loading track, and the driving ends of the unloading hydraulic rods penetrate the loading track and are hinged to the eccentric position of the loading joint control plate.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. The utility model can accurately control the loading position through the coordinated operation of the two-axis moving unit, namely the horizontal loading screw and the vertical loading screw. The flexible horizontal and vertical movement enables the loading track to accurately reach the specified position, realizes the automatic loading of bone screws, greatly improves the accuracy and efficiency of loading, avoids the positioning deviation and time waste that may occur in manual operation, and solves the problem of slow manual loading of bone screws.
[0014] 2. The utility model also realizes continuous input of bone screws through the meshing of the loading linkage gears by means of multiple equidistantly distributed loading wheels in the continuous loading structure. After the outer periphery of the bone screw contacts the loading outer fixed arc, it is driven to rotate, driving the subsequent loading wheels to rotate, so that the bone screws can be continuously transported and loaded. This continuous loading method greatly improves the loading speed of the bone screws, effectively solves the problem of slow manual loading speed, meets the needs of batch acceptance of bone screws, and further solves the problem of slow manual loading speed of bone screws.
[0015] 3. The utility model also realizes the integrated unloading of bone screws through the cooperation of the unloading extension column, the unloading slider, the unloading hydraulic rod and other components through the integrated unloading structure. After loading is completed, the loading wheel and the loading linkage control plate are rotated as a whole through the unloading hydraulic rod, so that the loading outer fixed arc is separated from the bone screw, and the nut part of the bone screw is no longer constrained, thereby quickly completing the unloading. This integrated unloading method is simple and efficient to operate, reduces manual intervention, improves the efficiency of the entire loading and unloading process, and further solves the problem of slow manual loading speed of bone screws.
[0016] The application of this automatic loading mechanism transforms the loading process of bone screws from manual operation to automated operation, significantly improving the loading efficiency, thereby optimizing the entire orthopedic acceptance process, reducing delays in the acceptance process caused by slow manual loading, and reducing patient waiting time and hospital operating costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of the utility model;
[0018] Figure 2 It is a schematic diagram of the structure inside the loading part of the utility model;
[0019] Figure 3 This is a schematic diagram of the connection structure of the two-axis moving unit in the utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the end position of the loading rail in the utility model;
[0021] Figure 5 This is a schematic diagram of the structure of the present invention during the bone screw delivery process;
[0022] Figure 6It is a schematic diagram of the cross-section structure of the loading joint control plate and the loading wheel part of the utility model;
[0023] Figure 7 It is a schematic diagram of the hinged connection structure of the unloading hydraulic rod in the utility model.
[0024] Explanation of the numbers in the figure: 1. Acceptance equipment body; 2. Two-axis moving unit; 201. Horizontal loading screw; 202. Vertical loading screw; 3. Loading room connecting handle; 4. Loading hydraulic rod; 5. Loading track; 6. Unloading circular cavity; 7. Loading joint control plate; 8. Continuous loading structure; 9. Integrated unloading structure; 10. Loading pallet; 11. Unloading hydraulic rod; 12. Loading side door; 13. Display screen; 14. Loading safety platform; 81. Loading wheel; 811. Center axis; 812. Round body; 813. One-way bearing; 814. Loading clamp ring; 815. Loading groove; 816. Loading external fixed arc; 817. Resistance ring; 802. Loading joint control gear; 901. Unloading extension column; 902. Unloading slider. DETAILED DESCRIPTION
[0025] like Figures 1 to 7 As shown, the screw automatic loading mechanism of the orthopedic acceptance equipment involved in the utility model includes a two-axis moving unit 2 arranged inside the acceptance equipment body 1, and the acceptance equipment body 1 is also provided with a loading safety platform 14 and a display screen 13, etc. The acceptance equipment body 1 is an existing device and is not described here. A loading tray 10 is arranged below the two-axis moving unit 2, and a loading port is opened on the loading tray 10. A latex layer is bonded to the loading port area, and the loading port is used to place bone screws. The two-axis moving unit 2 is composed of a horizontal loading screw 201 and a vertical loading screw 202. The horizontal loading screw 201 and the vertical loading screw 202 are connected. It can move horizontally and vertically, and a loading room connecting handle 3 is installed at the moving end of the vertical loading screw 202, and a loading hydraulic rod 4 is installed at one end of the loading room connecting handle 3. A loading rail 5 is fixed to the driving end of the loading hydraulic rod 4. The acceptance equipment body 1 is provided with a loading side door 12 that can be opened and closed. By opening the loading side door 12, one end of the loading rail 5 can be extended, and then cooperated with an external manipulator or conveying equipment, and the conveying equipment is preferably a screw vibrating table to realize automatic loading. A loading chute is provided in the center of the loading rail 5, and unloading circular cavities 6 with circular cross-sections are provided on both sides of the inner wall of the loading rail 5, and a loading joint control panel 7 is provided inside the unloading circular cavity 6.
[0026] In order to realize continuous loading, a continuous loading structure 8 is arranged under the loading joint control plate 7, and the continuous loading structure 8 includes a plurality of loading wheels 81, and the plurality of loading wheels 81 are distributed at equal distances, and the loading wheel 81 includes a central shaft 811 connected to the loading joint control gear 802, and a round body 812 is connected to the outer periphery of the central shaft 811, and a one-way bearing 813 is installed on the outer periphery of the round body 812, and a loading clamp ring 814 is connected to the outer ring of the one-way bearing 813, and a plurality of loading clamp rings 814 are provided on the outer periphery of the loading clamp ring 814. The inner arc of the loading groove 815 is bonded with a loading outer fixed arc 816. The loading outer fixed arc 816 is an arc surface structure protruding outward from the center. The loading outer fixed arc 816 fits the bone screw. The loading outer fixed arc 816 is made of a rubber material with a spring. The elasticity of the rubber material can improve its applicability and avoid damage to the bone screw caused by hard contact. A resistance ring 817 is fixed to the side area between the round body 812 and the one-way bearing 813. A loading linkage gear 802 is set on the top of the loading wheel 81. Adjacent loading interlocking gears 802 are meshed with each other, and the meshing is achieved by staggered connection at intervals to ensure that the loading and conveying directions are consistent. Therefore, when an external manipulator or conveying equipment inputs bone screws, such as a screw vibrating table, its input end has an inclined slope, so that the gravity of the bone screws on the vibrating table will slide one by one into the input port of the loading tray 10, that is, the interval between the two outermost symmetrical loading outer fixed arcs 816. During the sliding process, the outer periphery of the bone screw first contacts the outermost loading outer fixed arc 816 to drive it to rotate. With the meshing of the gears, the subsequent multiple loading wheels 81 all rotate. The design of the one-way bearing 813 limits its rotation direction, and then cooperates with the resistance ring 817 to strengthen the friction resistance, so that the input process can be more stable. With this continuous input, the outer periphery of the bone screw after input will be contacted and constrained by the loading outer fixed arcs 816 on both sides, and the nut portion of the bone screw is at the top, thereby forming a loading operation. It should be noted that the distance between the multiple loading wheels 81 is the same as the loading port.
[0027] In order to realize integrated unloading, an integrated unloading structure 9 is further provided on the periphery of the continuous loading structure 8. The integrated unloading structure 9 includes two unloading extension columns 901 connected to the two ends of the central axis 811. The unloading extension columns 901 are rotatably connected to the loading joint control plate 7. An unloading slider 902 is installed at the end of the unloading extension column 901. The unloading slider 902 and the unloading circular cavity 6 are limited sliding, and the sliding track is annular. Two unloading hydraulic rods 11 are installed on the top of the loading track 5. The driving end of the unloading hydraulic rod 11 passes through the loading track 5 and is hinged to the eccentric position of the loading joint control plate 7. When hinged, the plate rod is hinged at both ends to enable the loading joint control plate 7 to have a certain range of rotation ability to avoid motion interference. When the unloading hydraulic rod 11 descends, due to the multiple bone screws in the center of the two loading joint control plates 7, a downward gravity is provided to stabilize the direction of its unscrewing. Under normal conditions, the loading joint control plate 7 is in a horizontal state to receive the bone screws. When the above-mentioned loading is completed, the horizontal loading screw 201 and the vertical loading screw 202 are controlled by the external control structure to move horizontally and vertically to the corresponding loading row position. The control structure controls the loading hydraulic rod 4 to work, so that the bone screws are lowered to the inside of the loading port. Finally, the unloading hydraulic rod 11 can be operated and lowered, so that the loading wheel 81 and the loading joint control plate 7 are rotated as a whole. The loading outer fixed arc 816 is an arc surface structure protruding outward from the center, and no operation interference occurs during rotation. After the loading outer fixed arc 816 is rotated until it no longer contacts the bone screw and is unfolded, it will not constrain the nut part of the bone screw, and integrated unloading can be achieved. During the rotation process, the unloading sliders 902 at the upper and lower ends and the unloading circular cavity 6 are limited sliding, so that they always maintain a limited state to ensure their stability.
[0028] Working principle: When it is necessary to load bone screws, the loading side door 12 of the acceptance equipment body 1 is opened, one end of the loading track 5 is extended, and the external manipulator or conveying equipment (preferably a screw vibration table) starts to work to convey the bone screws to the loading track 5. After the bone screws are conveyed to the loading track 5, they first contact the outermost loading fixed arc 816 in the continuous loading structure 8. Since the loading fixed arc 816 is made of rubber with a spring and has an arc surface structure with the center convex outward, it can fit well with the bone screw. The bone screw pushes the loading fixed arc 816 and the connected loading clamp ring 814 to rotate. The loading interlocking gears 802 on the top of the loading wheels 81 mesh with each other and are staggered with one at a time to ensure that the loading and conveying directions are consistent. When the outermost loading wheel 81 rotates, the subsequent multiple loading wheels 81 are driven to rotate in sequence through the loading interlocking gear 802. During the continuous input process of the bone screws, the outer periphery is always contacted and constrained by the loading outer fixing arcs 816 on both sides, and the nut part of the bone screw is kept facing upward until a batch of bone screws are continuously loaded. Since the distance between the multiple loading wheels 81 is the same as the loading port on the loading tray 10, it is prepared for the subsequent bone screws to accurately fall into the loading port.
[0029] After the continuous loading is completed, the external control structure controls the horizontal loading screw 201 and the vertical loading screw 202 to move horizontally and vertically, and moves the loading track 5 to the row position corresponding to the loading port on the loading pallet 10. Then, the control structure controls the loading hydraulic rod 4 to work, and the driving end of the loading hydraulic rod 4 drives the loading track 5 and the bone screws in the track to descend, so that the bone screws fall into the loading port of the loading pallet 10, and the two unloading hydraulic rods 11 installed on the top of the loading track 5 start to work. By controlling the unloading hydraulic rod 11 to descend, the loading wheel 81 and the loading joint control plate 7 are rotated as a whole around the rotation connection point between the unloading extension column 901 and the loading joint control plate 7. When the loading outer fixed arc 816 is rotated to no longer contact the bone screw and unfolds, the bone screw nut part is no longer constrained, and the integrated unloading can be achieved, completing the entire bone screw automatic loading process and waiting for the next cycle of loading operation.
[0030] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.
Claims
1. An automatic screw loading mechanism for orthopedic inspection equipment, characterized in that: The invention comprises a two-axis moving unit (2) arranged inside an acceptance equipment body (1), the two-axis moving unit (2) comprising a transverse loading screw (201) and a vertical loading screw (202), a loading room connecting handle (3) being installed at the moving end of the vertical loading screw (202), a loading hydraulic rod (4) being installed at one end of the loading room connecting handle (3), a loading track (5) being fixed at the driving end of the loading hydraulic rod (4), a loading chute being provided at the center of the loading track (5), an unloading circular cavity (6) having a circular cross section being provided at both sides of the inner wall of the loading track (5), a loading joint control plate (7) being provided inside the unloading circular cavity (6), a continuous loading structure (8) being provided below the loading joint control plate (7), an integrated unloading structure (9) being further provided on the outer periphery of the continuous loading structure (8), a loading tray (10) being provided below the two-axis moving unit (2), and a loading port being provided on the loading tray (10).
2. The automatic screw loading mechanism of the orthopedic inspection equipment according to claim 1 is characterized in that: The continuous loading structure (8) comprises a plurality of loading wheels (81), the plurality of loading wheels (81) being distributed at equal distances, a loading interlocking control gear (802) being arranged on the top of the loading wheel (81), and adjacent loading interlocking control gears (802) being meshed with each other.
3. The automatic screw loading mechanism of the orthopedic inspection equipment according to claim 2, characterized in that: The loading wheel (81) comprises a central shaft (811) connected to a loading linkage gear (802); a circular body (812) is connected to the outer periphery of the central shaft (811); a one-way bearing (813) is installed on the outer periphery of the circular body (812); a loading clamp ring (814) is connected to the outer ring of the one-way bearing (813); a plurality of loading grooves (815) are formed on the outer periphery of the loading clamp ring (814); a loading outer fixing arc (816) is bonded to the inner arc of the loading groove (815); the loading outer fixing arc (816) is a curved surface structure protruding outward from the center; and the loading outer fixing arc (816) is fitted with a bone screw.
4. The automatic screw loading mechanism of the orthopedic inspection equipment according to claim 3 is characterized in that: The loading outer fixed arc (816) is made of a rubber material with a spring, and a resistance ring (817) is fixed to the side area between the round body (812) and the one-way bearing (813).
5. The automatic screw loading mechanism of the orthopedic inspection equipment according to claim 4, characterized in that: The integrated unloading structure (9) comprises two unloading extension columns (901) connected to the two ends of the central shaft (811); the unloading extension columns (901) are rotatably connected to the loading joint control plate (7); an unloading slider (902) is installed at the end of the unloading extension column (901); the unloading slider (902) and the unloading circular cavity (6) are in limited sliding motion, and the sliding track is annular.
6. The automatic screw loading mechanism of the orthopedic inspection equipment according to claim 5, characterized in that: Two unloading hydraulic rods (11) are installed on the top of the loading track (5), and the driving ends of the unloading hydraulic rods (11) penetrate the loading track (5) and are hinged to the loading joint control plate (7) at an eccentric position.