Internal fixation simulation device for femoral fracture
By designing an internal fixation simulation device for femoral fractures that support the main rod, adjustment plate and transmission device, the problems of fracture reduction position maintenance and angle adjustment during surgery are solved, and more efficient fracture surgery operation is achieved.
Patent Information
- Application Number
- CN202420692755.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-07
AI Technical Summary
During femoral fracture surgery, it is difficult for doctors to maintain the fracture reduction position, and the existing devices cannot maintain stability and angle adjustment for a long time, so the adaptation range is limited.
A femoral fracture internal fixation simulation device including supporting main rod, adjustment plate, transmission device and limiting device is designed. The angle adjustment and fixation of the distal end of the fracture is achieved through transmission device and rotation device, and the limiting device is driven by transmission gear and thread. The lever is position and angle adjustment.
It achieves stable fixation and angle adjustment of the fracture position, adapts to a wider range of fracture conditions, and improves the convenience and accuracy of operation during surgery.
Smart Images
Figure CN222217916U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of orthopedic medical treatment, in particular to a femoral fracture internal fixation simulation device. Background Art
[0002] A femur fracture is a break or fracture of the thighbone (femur). The femur is the longest bone in the human body and one of the bones that bears the most weight of the body, so a femur fracture is usually quite serious trauma. A femur fracture can be caused by trauma, such as a car accident, fall, or sports injury, or it can occur spontaneously due to bone disease such as osteoporosis. Usually, a femur fracture requires professional medical attention and appropriate treatment.
[0003] Femoral fractures usually present with symptoms such as severe pain, swelling, bruising and inability to move the injured leg normally. In severe fractures, the bone may even protrude through the skin. Fractures can be transverse, longitudinal, spiral, etc. Treatment of femoral fractures usually requires precise fracture reduction and internal fixation surgery, and sometimes external fixation devices or fracture correction surgery may be required. After surgery, patients need to undergo a long recovery period, physical therapy and rehabilitation training to regain the ability to walk and move normally.
[0004] However, in the prior art, when orthopedic surgeons are working, they often encounter difficulties in manual reduction of femoral fractures during surgery, which cannot be maintained after reduction, and there are situations during the operation where fluoroscopy is required. At this time, the doctor's hands cannot maintain stability, so that during femoral fracture surgery, the doctor cannot maintain the position of the fracture for a long time after manually reducing the fracture, and cannot adjust and fix the angle of the device according to the fracture situation. The adaptability range is small. Therefore, a femoral fracture internal fixation simulation device is proposed, which can fix the device during fracture surgery and adjust the angle of the device according to the fracture situation. Utility Model Content
[0005] The purpose of the utility model is to provide a femoral fracture internal fixation simulation device to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a femoral fracture internal fixation simulation device, including a supporting main rod, an adjustment plate is fixedly provided on one side of the supporting main rod, a movable cover plate is adapted to be provided on one side of the adjustment plate, a transmission device is adapted to be provided on the inner wall of the movable cover plate, a limiting device is adapted to be provided on one side of the movable cover plate, a distal end of the fracture is fixedly provided on one side of the movable cover plate, a rotating device is fixedly provided on one end of the supporting main rod, an auxiliary rod is adapted to be provided on one side of the rotating device, and a proximal end of the fracture is fixedly provided on one side of the auxiliary rod.
[0007] Furthermore, a support connecting rod is fixedly provided on one side of the support main rod, and a support clamping rod is adapted to be provided on the surface of the support connecting rod.
[0008] Furthermore, triangular slots are symmetrically arranged on both sides of the adjustment plate, adjustment slots are symmetrically opened on both sides of the adjustment plate, an adjustment placement slot is opened on the surface of the adjustment plate, and adjustment movement slots are symmetrically opened on both sides of the inner wall of the adjustment placement slot.
[0009] Furthermore, movable clamping plates are fixedly provided on both sides of the inner wall of the movable cover plate, the inner wall of the movable cover plate is matched with the adjustment plate, and the movable clamping plate is matched with the adjustment slot.
[0010] Furthermore, the transmission device includes a transmission plate adapted to be embedded in the adjustment placement groove, the transmission plate is fixedly connected to the inner wall of the movable cover plate, transmission clamp rods are fixedly provided on both sides of the transmission plate, the transmission clamp rods are adapted to the adjustment movable groove, a first transmission gear is adapted to the inner wall of the transmission plate, a transmission threaded rod is fixedly provided on one side of the first transmission gear, a transmission pressing rod is adapted to the surface of the transmission threaded rod, a button is fixed to one end of the transmission pressing rod, a reset spring is provided on the surface of the transmission pressing rod, a transmission belt is adapted to the surface of the first transmission gear, and a second transmission gear is adapted to the other end of the transmission belt.
[0011] Furthermore, the limiting device includes a limiting rod embedded in one end of the movable cover plate, a limiting plate is adapted to be provided on the surface of the limiting rod, a limiting clamping rod is fixedly provided at one end of the limiting plate, and one end of the limiting rod is fixedly connected to one side of the second transmission gear.
[0012] Furthermore, the rotating device includes a first rotating plate fixedly mounted on one end of the supporting main rod, a rotating shaft is adapted to be provided on the inner wall of the first rotating plate, a rotating ring is adapted to be adapted to be adapted to the rotating shaft, a second rotating plate is adapted to be adapted to be adapted to the other side of the first rotating plate, the second rotating plate is adapted to be adapted to the rotating shaft, and one end of the second rotating plate is fixedly connected to one end of the auxiliary rod.
[0013] Furthermore, a positioning ring is fixedly provided on one side of the auxiliary rod, and positioning grooves are evenly opened on the surface of the positioning ring, and the positioning grooves are adapted to the supporting clamping rod.
[0014] Preferably, in order to facilitate the doctor to fix and adjust the device when in use so that the device can better assist the doctor in treatment, an adjustment plate is fixedly provided on one side of the supporting main rod, a movable cover plate is adapted on one side of the adjustment plate, and a limiting device is provided at one end of the movable cover plate.
[0015] Preferably, in order to facilitate the angle adjustment of the device and enable the device to be fixedly adjusted to adapt to a wider range of situations, a rotating device is fixedly provided at one end of the supporting main rod.
[0016] Preferably, in order to facilitate the adjustment and movement of the limit clamping rod more conveniently and quickly, a transmission device is provided on the surface of the movable cover plate.
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] (1) In order to facilitate the doctor to fix and adjust the device during use so that the device can better assist the doctor in treatment, an adjustment plate is fixedly provided on one side of the supporting main rod, a movable cover plate is adapted to be provided on one side of the adjustment plate, a transmission device is provided on the surface of the movable cover plate, and a limit device is provided at one end of the movable cover plate. When in use, the movable cover plate is pushed to move according to the adjustment plate. During the movement, the limit clamping rod limits the movable cover plate through the triangular clamping groove. When the distal end of the fracture needs to be adjusted, the button is pressed, and the button pushes the transmission pressing rod downward, and the transmission pressing rod drives the transmission thread through the thread opened on the inner wall. The rod rotates, so that the transmission threaded rod rotates according to the transmission pressing rod. The rotation of the transmission pressing rod drives the first transmission gear to rotate, so that the first transmission gear drives the transmission belt to rotate, and the transmission belt drives the second transmission gear to rotate, so that the second transmission gear drives the limit rod to rotate, so that the limit rod drives the limit plate to adjust the angle, and the angle adjustment of the limit plate drives the limit clamping rod to move, so that the limit clamping rod is disengaged from the triangular clamping groove to facilitate the position movement of the movable cover plate and the distal end of the fracture, and when it is not moving, the elastic force of the reset spring can be used to push the button to return to its original position, so that the limit clamping rod is confined in the triangular clamping groove to complete the fixation of the device.
[0019] (2) In order to facilitate the angle adjustment of the device and enable the device to be fixed and adjusted to adapt to a wider range of situations, a rotating device is fixed at one end of the supporting main rod. When some fractures with larger angles occur, ordinary devices cannot fix the fracture site. By pulling out the supporting clamp rod according to the supporting connecting rod, the auxiliary rod drives the second rotating plate to rotate according to the rotating ring. After the adjustment is completed, the supporting clamp rod is embedded in the positioning groove to complete the fixation of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is one of the structural schematic diagrams of a femoral fracture internal fixation simulation device proposed by the utility model;
[0021] Figure 2 This is the second structural schematic diagram of a femoral fracture internal fixation simulation device proposed by the utility model;
[0022] Figure 3 Figure 2 This is a schematic diagram of the structure of an adjustment plate of a femoral fracture internal fixation simulation device proposed by the utility model;
[0023] Figure 4 This is a schematic diagram of the disassembly structure of a movable cover plate of a femoral fracture internal fixation simulation device proposed by the utility model;
[0024] Figure 5 A schematic diagram of the cross-sectional structure of a movable cover plate of a femoral fracture internal fixation simulation device proposed by the utility model;
[0025] Figure 6 The utility model is a schematic diagram of the structure of a rotating device of a femoral fracture internal fixation simulation device.
[0026] In the figure: 1, supporting main rod; 2, adjusting plate; 3, moving cover plate; 4, transmission device; 5, limiting device; 6, distal end of fracture; 7, rotating device; 8, auxiliary rod; 9, proximal end of fracture; 101, supporting connecting rod; 102, supporting clamping rod; 201, triangular clamping groove; 202, adjusting clamping groove; 203, adjusting placement groove; 204, moving groove; 301, moving clamping plate; 401, transmission plate; 402, transmission clamping rod; 403, first transmission gear; 404, transmission threaded rod; 405, transmission belt; 406, second transmission gear; 407, reset spring; 408, transmission pressing rod; 409, button; 501, limiting rod; 502, limiting plate; 503, limiting clamping rod; 701, first rotating plate; 702, rotating ring; 703, second rotating plate; 801, positioning ring; 802, positioning groove. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] Embodiment 1:
[0029] See also Figure 1-6The utility model provides a technical solution: a femoral fracture internal fixation simulation device, including a supporting main rod 1, an adjusting plate 2 is fixedly installed on one side of the supporting main rod 1, triangular slots 201 are symmetrically installed on both sides of the adjusting plate 2, adjusting slots 202 are symmetrically opened on both sides of the adjusting plate 2, an adjusting placement slot 203 is opened on the surface of the adjusting plate 2, and adjusting movable slots 204 are symmetrically opened on both sides of the inner wall of the adjusting placement slot 203, a movable cover plate 3 is adapted to be installed on one side of the adjusting plate 2, and movable card plates 301 are fixedly installed on both sides of the inner wall of the movable cover plate 3, the inner wall of the movable cover plate 3 is adapted to the adjusting plate 2, the movable card plate 301 is adapted to the adjusting slot 202, and the inner wall of the movable cover plate 3 is adapted to be installed with a transmission device 4, and the transmission device 4 includes a transmission plate adapted to be embedded in the adjusting placement slot 203 401, the transmission plate 401 is fixedly connected to the inner wall of the movable cover plate 3, the transmission card rods 402 are fixedly installed on both sides of the transmission plate 401, the transmission card rods 402 are adapted to the adjustment moving groove 204, the first transmission gear 403 is adapted to be installed on the inner wall of the transmission plate 401, a transmission threaded rod 404 is fixedly installed on one side of the first transmission gear 403, a transmission pressing rod 408 is adapted to be installed on the surface of the transmission threaded rod 404, a button 409 is fixedly installed on one end of the transmission pressing rod 408, a reset spring 407 is installed on the surface of the transmission pressing rod 408, a transmission belt 405 is adapted to be installed on the surface of the first transmission gear 403, and a second transmission gear 406 is adapted to be installed on the other end of the transmission belt 405, a limiting device 5 is adapted to be installed on one side of the movable cover plate 3, and the limiting device 5 includes a card embedded in the movable cover A limiting rod 501 is arranged at one end of the plate 3, and a limiting plate 502 is adapted to be installed on the surface of the limiting rod 501. A limiting clamping rod 503 is fixedly installed at one end of the limiting plate 502. One end of the limiting rod 501 is fixedly connected to one side of the second transmission gear 406. A fracture distal end 6 is fixedly installed on one side of the movable cover plate 3. A rotating device 7 is fixedly installed on one end of the supporting main rod 1. An auxiliary rod 8 is adapted to be installed on one side of the rotating device 7. A fracture proximal end 9 is fixedly installed on one side of the auxiliary rod 8. When in use, the movable cover plate 3 is pushed to move according to the adjustment plate 2. During the movement, the limiting clamping rod 503 limits the movable cover plate 3 through the triangular clamping groove 201. When the fracture distal end 6 needs to be adjusted, the button 409 is pressed, and the button 409 pushes the transmission pressing rod 408 to move. Press down, the transmission pressing rod 408 drives the transmission threaded rod 404 to rotate through the thread opened on the inner wall, so that the transmission threaded rod 404 rotates according to the transmission pressing rod 408, and the rotation of the transmission pressing rod 408 drives the first transmission gear 403 to rotate, so that the first transmission gear 403 drives the transmission belt 405 to rotate, and the transmission belt 405 drives the second transmission gear 406 to rotate, so that the second transmission gear 406 drives the limiting rod 501 to rotate, so that the limiting rod 501 drives the limiting plate 502 to adjust the angle, and the angle adjustment of the limiting plate 502 drives the limiting clamping rod 503 to move, so that the limiting clamping rod 503 is separated from the triangular clamping groove 201, which is convenient for moving the movable cover plate 3 and the distal end 6 of the fracture, and can be moved without moving.The button 409 is pushed back to its original position by the elastic force of the return spring 407, so that the limit lever 503 is restricted in the triangular slot 201, thus completing the fixing of the device.
[0030] Embodiment 2:
[0031] See also Figure 1-6 The utility model provides a technical solution: a femoral fracture internal fixation simulation device, including a supporting main rod 1, a supporting connecting rod 101 is fixedly installed on one side of the supporting main rod 1, a supporting clamping rod 102 is adapted to be installed on the surface of the supporting connecting rod 101, an adjusting plate 2 is fixedly installed on one side of the supporting main rod 1, a movable cover plate 3 is adapted to be installed on one side of the adjusting plate 2, a transmission device 4 is adapted to be installed on the inner wall of the movable cover plate 3, a limiting device 5 is adapted to be installed on one side of the movable cover plate 3, a fracture distal end 6 is fixedly installed on one side of the movable cover plate 3, a rotating device 7 is fixedly installed on one end of the supporting main rod 1, and the rotating device 7 includes a first rotating plate 701 fixedly installed on one end of the supporting main rod 1, a rotating shaft is adapted to be installed on the inner wall of the first rotating plate 701, a rotating ring 702 is adapted to be installed on one side of the first rotating plate 701, and a rotating The ring 702 is adapted to the rotating axis, and the second rotating plate 703 is adapted to be installed on the other side of the first rotating plate 701. The second rotating plate 703 is adapted to the rotating axis, and one end of the second rotating plate 703 is fixedly connected to one end of the auxiliary rod 8. The auxiliary rod 8 is adapted to be installed on one side of the rotating device 7, and a positioning ring 801 is fixedly installed on one side of the auxiliary rod 8. Positioning grooves 802 are evenly opened on the surface of the positioning ring 801, and the positioning grooves 802 are adapted to the supporting clamping rod 102. The proximal end 9 of the fracture is fixedly installed on one side of the auxiliary rod 8. By pulling out the supporting clamping rod 102 according to the supporting connecting rod 101, the auxiliary rod 8 drives the second rotating plate 703 to rotate according to the rotating ring 702. After the adjustment is completed, the supporting clamping rod 102 is embedded in the positioning groove 802 to complete the fixation of the device.
[0032] Working principle: When the fracture distal end 6 needs to be adjusted, the button 409 is pressed, and the button 409 pushes the transmission pressing rod 408 to press down, and the transmission pressing rod 408 drives the transmission threaded rod 404 to rotate through the thread opened on the inner wall, so that the transmission threaded rod 404 rotates according to the transmission pressing rod 408, and the rotation of the transmission pressing rod 408 drives the first transmission gear 403 to rotate, so that the first transmission gear 403 drives the transmission belt 405 to rotate, and the transmission belt 405 drives the second transmission gear 4 06 rotates, so that the second transmission gear 406 drives the limiting rod 501 to rotate, so that the limiting rod 501 drives the limiting plate 502 to adjust the angle, and the angle adjustment of the limiting plate 502 drives the limiting clamping rod 503 to move, so that the limiting clamping rod 503 is separated from the triangular clamping groove 201 to facilitate the position movement of the movable cover plate 3 and the distal end 6 of the fracture, and when it is not moving, the elastic force of the reset spring 407 can be used to push the button 409 to return to its original position, so that the limiting clamping rod 503 is confined in the triangular clamping groove 201.
[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A femoral fracture internal fixation simulation device, comprising a supporting main rod (1), characterized in that: An adjustment plate (2) is fixedly provided on one side of the support main rod (1), a movable cover plate (3) is adapted to be provided on one side of the adjustment plate (2), a transmission device (4) is adapted to be provided on the inner wall of the movable cover plate (3), a limiting device (5) is adapted to be provided on one side of the movable cover plate (3), a fracture distal end (6) is fixedly provided on one side of the movable cover plate (3), a rotating device (7) is fixedly provided on one end of the support main rod (1), an auxiliary rod (8) is adapted to be provided on one side of the rotating device (7), and a fracture proximal end (9) is fixedly provided on one side of the auxiliary rod (8).
2. A femoral fracture internal fixation simulation device according to claim 1, characterized in that: A support connecting rod (101) is fixedly provided on one side of the support main rod (1), and a support clamping rod (102) is adapted to be provided on the surface of the support connecting rod (101).
3. A femoral fracture internal fixation simulation device according to claim 2, characterized in that: The adjustment plate (2) is symmetrically provided with triangular clamping grooves (201) on both sides, the adjustment plate (2) is symmetrically provided with adjustment clamping grooves (202) on both sides, the adjustment plate (2) is provided with an adjustment placement groove (203) on the surface, and the inner wall of the adjustment placement groove (203) is symmetrically provided with adjustment movement grooves (204) on both sides.
4. A femoral fracture internal fixation simulation device according to claim 3, characterized in that: Moving card plates (301) are fixedly provided on both sides of the inner wall of the moving cover plate (3); the inner wall of the moving cover plate (3) is matched with the adjustment plate (2); and the moving card plates (301) are matched with the adjustment card slots (202).
5. A femoral fracture internal fixation simulation device according to claim 4, characterized in that: The transmission device (4) comprises a transmission plate (401) adapted to be embedded in the adjustment placement groove (203); the transmission plate (401) is fixedly connected to the inner wall of the movable cover plate (3); transmission clamping rods (402) are fixedly provided on both sides of the transmission plate (401); the transmission clamping rods (402) are adapted to the adjustment movement groove (204); the inner wall of the transmission plate (401) is adapted to be provided with a first transmission gear (403); a transmission threaded rod (404) is fixedly provided on one side of the first transmission gear (403); a transmission pressing rod (408) is adapted to be provided on the surface of the transmission threaded rod (404); a button (409) is fixedly provided on one end of the transmission pressing rod (408); a return spring (407) is provided on the surface of the transmission pressing rod (408); a transmission belt (405) is adapted to be provided on the surface of the first transmission gear (403); and a second transmission gear (406) is adapted to be provided on the other end of the transmission belt (405).
6. A femoral fracture internal fixation simulation device according to claim 5, characterized in that: The limiting device (5) comprises a limiting rod (501) which is embedded in one end of the movable cover plate (3); a limiting plate (502) is adapted to be provided on the surface of the limiting rod (501); a limiting clamping rod (503) is fixedly provided at one end of the limiting plate (502); and one end of the limiting rod (501) is fixedly connected to one side of the second transmission gear (406).
7. A femoral fracture internal fixation simulation device according to claim 6, characterized in that: The rotating device (7) comprises a first rotating plate (701) fixedly mounted on one end of the supporting main rod (1); a rotating shaft is adapted to be provided on the inner wall of the first rotating plate (701); a rotating ring (702) is adapted to be provided on one side of the first rotating plate (701); the rotating ring (702) is adapted to be compatible with the rotating shaft; a second rotating plate (703) is adapted to be provided on the other side of the first rotating plate (701); the second rotating plate (703) is adapted to be compatible with the rotating shaft; one end of the second rotating plate (703) is fixedly connected to one end of the auxiliary rod (8).
8. The femoral fracture internal fixation simulation device according to claim 7, characterized in that: A positioning ring (801) is fixedly provided on one side of the auxiliary rod (8), and positioning grooves (802) are evenly formed on the surface of the positioning ring (801), and the positioning grooves (802) are adapted to the supporting clamping rod (102).