Medical steel plate pre-bending device

Abstract

The utility model belongs to the field of medical auxiliary tools, and particularly relates to a medical steel plate pre-bending device. The device comprises a horizontally-arranged bottom plate, a mounting plate is vertically fixed to the bottom plate, a first moving plate is arranged on the mounting plate, a first locking piece is arranged between the first moving plate and the mounting plate, a fixing rod perpendicular to the first moving plate is horizontally fixed to the first moving plate, a swing rod is hinged to the fixing rod, and the fixing rod is detachably sleeved with a pre-bending roller. A mounting rod perpendicular to the axis of the pre-bending roller is fixed to the swing rod, the mounting rod is sleeved with a bending sleeve, a second locking piece is arranged between the bending sleeve and the mounting rod, a second moving plate is arranged on the mounting plate, and a third locking piece is arranged between the second moving plate and the mounting plate. The second moving plate is provided with a clamping assembly used for clamping the orthopedic steel plate. The arc at the bending position of the orthopedic steel plate can be bent into various preset diameters, and the bending speed is high.

Description

Technical Field

[0001] The utility model belongs to the field of medical auxiliary appliances, in particular to a medical steel plate pre-bending device. Background Art

[0002] Orthopedics is one of the most common departments in major hospitals. It mainly studies the anatomy, physiology and pathology of the musculoskeletal system, and uses drugs, surgery and physical methods to maintain and develop the normal form and function of this system. The role of orthopedic plates is to fix the fracture ends through the plate screws to maintain the reduction of the fracture site, which can effectively prevent the fracture ends from being subjected to shear force or displacement caused by movement; pressurization, such as the compression plate, which automatically pressurizes the fracture ends through the screw holes when the screws are screwed in, so that the fracture ends are fully in contact, which can make the fracture ends more stable and promote fracture healing; bridging effect, for patients with severe comminuted fractures, in order to reduce secondary tissue damage, protect blood supply to the injured area, and ensure the fracture force line, only the proximal and distal large bone blocks are simply fixed, and the plate plays a bridging role at this time; supporting effect, mostly used in the treatment of joint fractures, can effectively support the body weight, prevent the collapse of the joint surface, restore the rigidity of the bone, and promote functional recovery; therefore, orthopedic plates are widely used in orthopedic treatment. Before use, orthopedic plates often need to be pre-bent in advance according to the shape of the bone through a pre-bending device.

[0003] However, when the existing pre-bending devices are used to bend the orthopedic steel plates, the diameter of the arc at the bending part of the orthopedic steel plates cannot be controlled. Most of the existing pre-bending devices bend the arcs with a fixed diameter or various unpredictable sizes. If one wants to increase the arc diameter without affecting the bending angle, multiple small-angle bends are required. In addition, due to uncertain human factors, the bending angle of the orthopedic steel plates may eventually be inaccurate, and the bending process is slow and troublesome. Utility Model Content

[0004] The utility model aims to provide a medical steel plate pre-bending device, the arc at the bending part of the orthopedic steel plate can be bent into a variety of predetermined diameters, and the bending speed is fast.

[0005] The medical steel plate pre-bending device comprises a horizontally arranged base plate, a mounting plate is vertically fixed on the base plate, and a first movable plate that can be moved left and right is arranged on the mounting plate, and a first locking piece for locking the first movable plate after movement is arranged between the first movable plate and the mounting plate, and a fixing rod that is perpendicular to the first movable plate is horizontally fixed to the first movable plate, and a swing arm that can swing freely is hinged on the fixing rod, and a pre-bending roller is detachably mounted on the fixing rod, and a mounting rod that is perpendicular to the axis line of the pre-bending roller is fixed on the swing arm, and a bending sleeve that can move along its rod body and is used to bend the orthopedic steel plate is mounted on the mounting rod, and a second locking piece for locking the bending sleeve after movement is arranged between the bending sleeve and the mounting rod, a second movable plate that can move up and down is arranged on the mounting plate, and a third locking piece for locking the second movable plate after movement is arranged between the second movable plate and the mounting plate, and a clamping assembly for clamping the orthopedic steel plate is arranged on the second movable plate.

[0006] Furthermore, the clamping assembly includes a screw, two symmetrical positioning plates are vertically fixed on the second movable plate, a clamping plate that can move left and right is arranged between the two positioning plates, a reset assembly for resetting the clamping plate after movement is arranged between one of the positioning plates and the clamping plate, one of the positioning plates is provided with a threaded hole that threadably cooperates with the screw, and one end of the screw passes through the threaded hole and presses against the clamping plate.

[0007] Furthermore, the reset assembly includes a plurality of moving rods, all of which are fixed on a clamping plate, wherein a positioning plate is provided with a plurality of through holes for the moving rods to pass through, a baffle is fixed on one end of each moving rod passing through the through hole, and a spring is mounted on each moving rod, and both ends of each spring are respectively fitted with the fixed rod and the corresponding baffle.

[0008] Furthermore, a pointer perpendicular to the axis of the pre-bending roller is fixed on the swing rod, and an angle scale for aligning the pointer to measure the bending angle is provided on the first movable plate.

[0009] Furthermore, a handle is fixed on the swing end of the swing rod.

[0010] Furthermore, all corners on the surface of the bending sleeve facing the pre-bending roller are rounded.

[0011] Furthermore, an anti-skid pad for increasing friction is fixed to the bottom of the base plate.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] First, place the end of the orthopedic steel plate that does not need to be bent between the clamping plate and the positioning plate on the right, clamp the orthopedic steel plate through the clamping plate and the positioning plate on the right, select a pre-bending roller of the corresponding model from several prefabricated pre-bending rollers according to the required bending arc diameter, install it on the fixed rod, move the first movable plate left and right, so that the outer cylindrical surface of the pre-bending roller fits with the bent part of the fixed orthopedic steel plate. If it is found that the position of the bent part of the orthopedic steel plate is not suitable after fitting, the second movable plate can be moved up and down to adjust the position of the orthopedic steel plate and the pre-bending roller, and then move and adjust the bending sleeve to make the bending sleeve fit the bending part of the orthopedic steel plate. The ends are fitted together, so that the bending sleeve and the pre-bending roller can position the bending end of the orthopedic steel plate; when the orthopedic steel plate is bent, the swing rod is pulled to swing in the bending direction, so that the swing rod drives the installation rod to swing in the bending direction with the pre-bending roller as the center. During the swinging of the installation rod, the bending sleeve will apply a thrust to the bending end of the orthopedic steel plate, so that the bending end of the orthopedic steel plate is bent and deformed in the bending direction, and fit on the pre-bending roller. The bending diameter of the bending end of the orthopedic steel plate is shaped by the pre-bending roller. When the bending angle of the bending end of the orthopedic steel plate is appropriate, the swinging of the swing rod is stopped, thereby completing the bending of the orthopedic steel plate. The bending is simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 Sectional view at AA in the middle;

[0016] Figure 3 for Figure 1 Sectional view at the middle BB;

[0017] Figure 4 for Figure 2 Sectional view at CC;

[0018] Figure 5 It is a three-dimensional diagram of the utility model;

[0019] Figure 6 It is an exploded view of the utility model;

[0020] The names of the components in the figure are: 1. Mounting plate 2. Mounting rod 3. Bending sleeve 4. Pre-bending roller 5. Rocker arm 6. Handle 7. Pointer 8. Angle scale 9. First movable plate 10. Bottom plate 11. Positioning plate 12. Second movable plate 13. Clamping plate 14. Spring 15. Moving rod 16. Fixed rod. DETAILED DESCRIPTION

[0021] The present invention is further described below through specific embodiments in conjunction with the accompanying drawings, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Example

[0022] The medical steel plate pre-bending device described in this embodiment is as follows Figure 1 , Figure 2 and Figure 5 As shown, it includes a horizontally arranged bottom plate 10, on which a mounting plate 1 is vertically fixed, and the mounting plate 1 is vertical to the bottom plate 10. When the bottom plate 10 is placed on a plane, the mounting plate 1 is supported;

[0023] The mounting plate 1 is provided with a first movable plate 9 which can be moved left and right. In the present embodiment, the first movable plate 9 is parallel to the mounting plate 1 and is located in front of the mounting plate 1. A first slide groove which is connected front and back is provided on the mounting plate 1. A first slider which can slide along the first slide groove is fixed on the first movable plate 9. When the first movable plate 9 moves left and right, the slider will slide along the first slide groove, so that the first movable plate 9 can move left and right. Of course, the sliding cooperation between the first movable plate 9 and the mounting plate 1 can also adopt the sliding cooperation of the slide rod and the slide sleeve. When installing, the slide sleeve is sleeved on the slide rod, the slide sleeve is fixed on the first movable plate 9, and the slide rod is installed on the mounting plate 1. When installing the slide rod, two fixing blocks can be fixed at both ends of the slide rod, and the fixing blocks are fixed on the mounting plate 1. The distance from the slide rod to the mounting plate 1 is greater than the thickness of the slide sleeve.

[0024] A first locking member for locking the first movable plate 9 after the movement is provided between the first movable plate 9 and the mounting plate 1. In this embodiment, the first locking member is a first screw, and a threaded hole that is connected front and back and threadedly matched with the first screw is provided on the first movable plate 9. By rotating the first screw, the threaded end of the first screw is pressed against the mounting plate 1, thereby locking the first movable plate 9 after the movement; of course, the first locking member can also be a positioning pin. When used, a first positioning hole is provided on the first movable plate 9, and a plurality of second positioning holes are provided along the direction of the first slide groove. After the first movable plate 9 is moved to a suitable position, the first positioning hole is aligned with the second positioning hole at the corresponding position, and the positioning pin is inserted into the aligned first positioning hole and the second positioning hole, thereby locking the first movable plate 9 after the movement;

[0025] A fixing rod 16 is fixed horizontally on the first movable plate 9 and is in a vertical shape therewith. A swinging rod 5 that can swing freely is hinged on the fixing rod 16. A mounting hole that communicates front and back is opened on the hinged end of the swinging rod 5. The fixing rod 16 passes through the mounting hole, thereby hingedly connecting the swinging rod 5 with the fixing rod 16, so that the swinging rod 5 can swing around the fixing rod 16. Of course, the swinging rod 5 and the fixing rod 16 can also be hinged by a bearing. During installation, the bearing generally has an inner ring and an outer ring. When realizing the hinge, the bearing is mounted on the fixing rod 16, and the swinging rod 5 is fixed to the outer ring, thereby realizing the hinge of the fixing rod 16 and the swinging rod 5.

[0026] A handle 6 is fixed to the swing end of the swing rod 5. The handle 6 is a commonly used handle in life, such as a photo cutting scissors, a paper cutter and a crank, etc. The handle 6 can facilitate the staff to hold the swing end of the swing rod 5;

[0027] The fixed rod 16 is detachably mounted with a pre-bending roller 4. The pre-bending roller 4 needs to be prefabricated in advance with several models of different diameters for backup. The unfixed end of the fixed rod 16 is provided with a thread. After the pre-bending roller 4 is mounted on the fixed rod 16, a nut is mounted on the threaded end, thereby locking the pre-bending roller 4 through the nut to prevent the pre-bending roller 4 from falling out. The pre-bending roller 4 is coaxial with the fixed rod 16.

[0028] A mounting rod 2 is fixed on the swing rod 5, which is perpendicular to the axis of the pre-bending roller 4. The mounting rod 2 is fixed on the hinged end of the swing rod 5. The swing rod 5 is perpendicular to the axis of the pre-bending roller 4 at 90 degrees. When the swing rod 5 swings, it drives the mounting rod 2 to swing with the pre-bending roller 4 as the center, and the diameter of the swing end of the orthopedic steel plate is shaped by the pre-bending roller 4.

[0029] The mounting rod 2 is provided with a bending sleeve 3 which can move along the rod and is used to bend the orthopedic steel plate. The bending sleeve 3 moves along the mounting rod 2 to adjust the distance between the bending sleeve 3 and the pre-bending roller 4. When in use, the bending end of the orthopedic steel plate is first fitted with the pre-bending roller 4, and then the position of the bending sleeve 3 on the mounting rod 2 is adjusted so that the bending sleeve 3 fits with the bending end of the orthopedic steel plate, thereby positioning the bending end of the orthopedic steel plate with the pre-bending roller 4.

[0030] A second locking member for locking the moved bending sleeve 3 is provided between the bending sleeve 3 and the mounting rod 2. In this embodiment, the second locking member is a second screw. The bending sleeve 3 is provided with a threaded hole which is communicated with the inside and outside and is threadedly matched with the second screw. By rotating the second screw, the threaded end of the second screw is pressed against the swing rod 5, thereby locking the moved bending sleeve 3.

[0031] The mounting plate 1 is provided with a second movable plate 12 which can be moved up and down, and the second movable plate 12 is parallel to the mounting plate 1 and is located in front of the mounting plate 1, and a second slide groove which is connected front and back is opened on the mounting plate 1, and a second sliding block which can slide along the second slide groove is fixed on the second movable plate 12. When the second movable plate 12 moves left and right, the sliding block will slide along the second slide groove, so that the second movable plate 12 can move up and down, and the second movable plate 12 is located below the first movable plate 9, and the spacing between the first movable plate 9 and the second movable plate 12 can be adjusted by moving the second movable plate 12 up and down; of course, the sliding cooperation between the second movable plate 12 and the mounting plate 1 can also adopt the sliding cooperation of the sliding rod and the sliding sleeve during installation, and the sliding sleeve is mounted on the sliding rod, and the sliding sleeve is fixed on the second movable plate 12, and the sliding rod is installed on the mounting plate 1; when the sliding rod is installed, two fixing blocks can be fixed at both ends of the sliding rod, and the fixing blocks are fixed on the mounting plate 1, and the distance from the sliding rod to the mounting plate 1 is greater than the thickness of the sliding sleeve;

[0032] A third locking piece is provided between the second movable plate 12 and the mounting plate 1 for locking the second movable plate 12 after the movement. In this embodiment, the third locking piece is a third screw, and a threaded hole that is connected front and back and is threadedly matched with the third screw is provided on the second movable plate 12. By rotating the third screw, the threaded end of the third screw is pressed against the mounting plate 1, thereby locking the moved second movable plate 12; of course, the third locking can also be achieved by a positioning pin. When used, a third positioning hole is provided on the second movable plate 12, and a plurality of fourth positioning holes are provided along the direction of the second slide groove. After the second movable plate 12 is moved to a suitable position, the third positioning hole is aligned with the fourth positioning hole at the corresponding position, and the positioning pin is inserted into the aligned third positioning hole and the fourth positioning hole, thereby locking the moved second movable plate 12;

[0033] To further explain, Figure 1 , Figure 4 and Figure 6As shown, in this embodiment, a screw is preferably included, and two symmetrical positioning plates 11 are vertically fixed on the second movable plate 12. In this embodiment, the two positioning plates 11 are aligned at a left-right interval, and the tops of the two positioning plates 11 are flush; a clamping plate 13 that can move left and right is provided between the two positioning plates 11, and the clamping plate 13 is moved left and right to clamp and fix the orthopedic steel plate together with one of the positioning plates 11; a reset component for resetting the clamping plate 13 after the movement is provided between one of the positioning plates 11 and the clamping plate 13, and all the movable rods 15 are fixed The clamping plate 13 is fixed on one of the positioning plates 11, and a plurality of through holes are provided on one of the positioning plates 11 for the moving rods 15 to pass through. A baffle is fixed on one end of each moving rod 15 passing through the through hole. A spring 14 is provided on each moving rod 15, and the two ends of each spring 14 are respectively fitted with the fixed rod 16 and the corresponding baffle. In the embodiment of the present city, all the moving rods 15 are fixed on the left side wall of the clamping plate 13, and the through hole is provided on the positioning plate 11 on the left side. When the clamping plate 13 is in the initial state, the clamping plate 13 fits with the positioning plate 11 on the left side. When in use, by moving the clamp to the right The holding plate 13 is used to drive all the moving rods 15 to move to the right, and the baffle plate 14 is pressed against the spring 14. When the clamping plate 13 loses the thrust to the right, the elastic force of the spring 14 is applied to the baffle plate, thereby driving the clamping plate 13 to return to its original position through the moving rod 15; a threaded hole is provided on one of the positioning plates 11, which is threadedly matched with the screw rod. One end of the screw rod passes through the threaded hole and presses on the clamping plate 13. By rotating the screw rod, the screw rod moves to the right during the rotation process, thereby pushing the clamping plate 13 to move to the right, and the orthopedic positioning plate 11 on the right side is aligned with the orthopedic positioning plate 11. The steel plate is clamped; this section of the scheme as a whole constitutes a clamping assembly for clamping orthopedic steel plates; when in use, the screw is rotated to move to the right during the rotation process, thereby pushing the clamping plate 13 to move to the right, and clamping the orthopedic steel plate with the positioning plate 11 on the right, and the clamping plate 13 drives all the moving rods 15 to move to the right, and makes the baffle plate squeeze the spring 14, and when the clamping plate 13 needs to be reset, the screw is rotated in the opposite direction to move the screw to the left, and the baffle plate drives the clamping plate 13 to return to its original position through the moving rod 15 under the action of the spring 14.

[0034] In actual use, first place the end of the orthopedic steel plate that does not need to be bent between the clamping plate 13 and the positioning plate 11 on the right, and then rotate the screw to push the clamping plate 13 to move to the right, and clamp the orthopedic steel plate through the clamping plate 13 and the positioning plate 11 on the right, and select the corresponding model of pre-bending roller 4 according to the required bending arc diameter, and install it on the fixing rod 16. After the pre-bending roller 4 is installed, it is necessary to move the position of the first movable plate 9 left and right to adjust the position so that the outer cylindrical surface of the pre-bending roller 4 fits the bent part of the fixed orthopedic steel plate, and then lock the moved first movable plate 9 by rotating the first screw. If it is found that the position of the bent part of the orthopedic steel plate is not suitable after fitting, the second movable plate 12 can be moved up and down to make the second movable plate 12 drive the orthopedic steel plate to move up and down, thereby adjusting the orthopedic steel plate and the pre-bending roller 4. The position of the fitting is then adjusted by moving the bending sleeve 3 on the mounting rod 2 so that the bending sleeve 3 is fitted with the bending end of the orthopedic steel plate, so that the bending sleeve 3 and the pre-bending roller 4 position the bending end of the orthopedic steel plate, and the moved bending sleeve 3 is locked by rotating the second screw. When the orthopedic steel plate is bent, the swing rod 5 is pulled to swing in the bending direction, so that the swing rod 5 drives the mounting rod 2 to swing in the bending direction with the pre-bending roller 4 as the center. During the swinging of the mounting rod 2, the bending sleeve 3 applies a thrust to the swinging end of the orthopedic steel plate, so that the bending end of the orthopedic steel plate is bent and deformed in the bending direction, and fits on the pre-bending roller 4. The pre-bending roller 4 is used to shape the bending diameter of the bending end of the orthopedic steel plate. When the bending angle of the bending end of the orthopedic steel plate is appropriate, the swinging of the swing rod 5 is stopped, thereby completing the bending of the orthopedic steel plate. Example

[0035] This embodiment further illustrates the technology. Figure 1 , Figure 4 and Figure 6 As shown, a pointer 7 perpendicular to the axis thread of the pre-bending roller 4 is fixed on the swing rod 5, and an angle scale 8 for aligning the pointer 7 to measure the bending angle is provided on the first movable plate 9. When the bending sleeve 3 and the pre-bending roller 4 are respectively in contact with the bending ends of the orthopedic steel plate, the pointer 7 is aligned with the zero point on the angle scale 8. When the swing rod 5 swings, it will drive the pointer 7 to swing to the same angle, so that the staff can observe the direction of the pointer 7 on the angle scale 8 to obtain the bending angle of the bending end of the orthopedic steel plate at this time, thereby avoiding the phenomenon of incorrect bending angle. Example

[0036] This embodiment further illustrates the technology. Figure 1 , Figure 4 and Figure 5As shown, all corners on the surface of the bending sleeve 3 facing the pre-bending roller 4 are rounded. In this embodiment, the right side wall of the bending sleeve 3 faces the pre-bending roller 4, and the corners between the right side wall of the bending sleeve 3 and the top and bottom are all rounded, so that when the bending sleeve 3 bends the orthopedic steel plate, the rounded corners on the bending sleeve 3 can avoid damage to the surface of the orthopedic steel plate. Example

[0037] This embodiment further illustrates the technology. Figure 1 , Figure 2 and Figure 4 As shown, a non-slip pad for increasing friction is fixed to the bottom of the base plate 10, and the non-slip pad is made of materials such as rubber, silicone, PVC and silane glue; when the base plate 10 is placed on a plane, the friction between the base plate 10 and the plane is increased by the non-slip pad, thereby preventing the base plate 10 from moving or sliding during use.

Claims

1. A medical steel plate pre-bending device, comprising a horizontally arranged bottom plate (10), on which a mounting plate (1) is vertically fixed, characterized in that: The mounting plate (1) is provided with a first movable plate (9) movable leftward and rightward, a first locking member for locking the first movable plate (9) after movement is provided between the first movable plate (9) and the mounting plate (1), a fixing rod (16) vertically fixed to the first movable plate (9) is horizontally fixed, a swing rod (5) that can swing freely is hingedly connected to the fixing rod (16), a pre-bending roller (4) is detachably mounted on the fixing rod (16), a mounting rod (2) vertically fixed to the axis of the pre-bending roller (4) is fixed to the swing rod (5), and the mounting rod (2) is installed A bending sleeve (3) is sleeved on the rod (2) and is movable along the rod body and is used to bend the orthopedic steel plate. A second locking member is provided between the bending sleeve (3) and the mounting rod (2) and is used to lock the bending sleeve (3) after it has moved. A second movable plate (12) is provided on the mounting plate (1) and is movable up and down. A third locking member is provided between the second movable plate (12) and the mounting plate (1) and is used to lock the second movable plate (12) after it has moved. A clamping assembly is provided on the second movable plate (12) and is used to clamp the orthopedic steel plate.

2. The medical steel plate pre-bending device according to claim 1, characterized in that: The clamping assembly comprises a screw rod, two symmetrical positioning plates (11) are vertically fixed on the second movable plate (12), a clamping plate (13) movable leftward and rightward is arranged between the two positioning plates (11), a reset assembly for resetting the clamping plate (13) after movement is arranged between one of the positioning plates (11) and the clamping plate (13), one of the positioning plates (11) is provided with a threaded hole threadably matched with the screw rod, one end of the screw rod passes through the threaded hole and is pressed against the clamping plate (13).

3. The medical steel plate pre-bending device according to claim 2, characterized in that: The reset assembly comprises a plurality of moving rods (15), all of which are fixed on a clamping plate (13), a plurality of through holes for the moving rods (15) to pass through are opened on one of the positioning plates (11), a baffle is fixed on one end of each moving rod (15) passing through the through hole, and a spring (14) is sleeved on each moving rod (15), and both ends of each spring (14) are respectively in contact with the fixed rod (16) and the corresponding baffle.

4. The medical steel plate pre-bending device according to claim 1, characterized in that: A pointer (7) perpendicular to the axis of the pre-bending roller (4) is fixed on the swing rod (5), and an angle scale (8) for aligning the pointer (7) to measure the bending angle is provided on the first movable plate (9).

5. The medical steel plate pre-bending device according to claim 1, characterized in that: A handle (6) is fixed on the swing end of the swing rod (5).

6. The medical steel plate pre-bending device according to claim 1, characterized in that: All corners on the surface of the bending sleeve (3) facing the pre-bending roller (4) are rounded.

7. The medical steel plate pre-bending device according to claim 1, characterized in that: An anti-skid pad for increasing friction is fixed to the bottom of the base plate (10).

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