Large-segment bone defect modeling tool

Abstract

The utility model discloses a large-segment bone defect modeling tool which comprises an outer shell, a wire saw is arranged in the outer shell, two sets of rotating discs are arranged in the outer shell, and a driving structure used for rapidly driving the wire saw to move is arranged in the outer shell. The large bone defect modeling tool is provided with the trigger, when the tool is used, the trigger is pressed to push the connecting plate to move, the connecting plate drives the transmission shafts at the two ends to move and drives the fan-shaped plate to rotate through the transmission frame, the fan-shaped plate drives the transmission gear to rotate through the transmission gear block at the top of the fan-shaped plate, and finally the transmission gear drives the wiring cylinder to move through the rotary disc. And then a spring in a movable groove pushes a connecting plate to move in the reverse direction so as to pull the fret saw to move in the reverse direction, the fret saw can be pulled to move back and forth to achieve cutting by repeatedly pressing a trigger for many times, the fret saw can be conveniently and manually driven to conduct cutting, and the problem that driving cannot be conveniently conducted is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially, and relates to a kind of large segment bone defect molding tool. BACKGROUND

[0002] The repair and functional reconstruction of bone defect are the difficulties in clinical treatment, and the bone tissue itself has certain self-healing ability, but the defect needs artificial intervention to heal when exceeding certain length, so the preparation of animal model is very important in the field of orthopedics, and the traditional impact drill, swing saw and other molding tools need larger incision exposed when using, and the surrounding tissue is easily damaged, so now line saw is used as cutting piece to cut model;

[0003] The line saw type molding tool used now still has some defects in use, and cannot be conveniently operated when using, and generally needs external power supply to provide power, which is inconvenient when using.

[0004] Now a new large segment bone defect molding tool is proposed to solve the above problems. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of large segment bone defect molding tool to solve the problem of inconvenient driving in the above background technology.

[0006] The utility model discloses a kind of large segment bone defect molding tools, including shell body, the inside of the shell body is provided with line saw, the inside of shell body is provided with two groups of turntable, the inside of shell body is provided with the driving structure for quickly driving line saw movement;

[0007] Driving structure includes transmission frame, the inside of shell body is provided with transmission frame, the top of transmission frame is fixedly connected with sector plate in both ends, one end of sector plate is fixedly connected with first positioning cylinder, the inside of shell body is fixedly connected with positioning shaft, the top of sector plate is fixedly connected with transmission gear block, the both ends of transmission frame are provided with sliding slot, one side of the inside of shell body is fixedly connected with fixed sleeve, the inside of transmission frame is movably connected with connecting plate, connecting plate is fixedly connected with trigger and extends to the outside of shell body and is connected with fixed sleeve, one side of connecting plate is provided with movable slot, one side in the inside of movable slot is fixedly connected with spring, the other side in the inside of shell body is fixedly connected with fixed rod, the both ends of connecting plate are fixedly connected with transmission shaft, one end of turntable is fixedly connected with transmission gear, the other end of turntable is fixedly connected with second positioning cylinder, the top of the inside of shell body is fixedly connected with fixed shaft.

[0008] The utility model discloses a kind of large segment bone defect molding tools, wherein the fixed rod is slidably connected with movable slot, and the fixed shaft is movably connected with second positioning cylinder.

[0009] The utility model relates to a large section bone defect molding tool, wherein the sliding groove is slidably connected with the transmission shaft, and the transmission gear block is meshedly connected with the transmission gear.

[0010] The utility model relates to a large section bone defect molding tool, wherein the center line of the transmission gear is on the same vertical plane with the center line of the rotary disc, and the positioning shaft is movably connected with the first positioning cylinder.

[0011] The utility model relates to a large section bone defect molding tool, wherein the top of one end of the rotary disc is fixedly connected with a wiring cylinder, a threaded hole is formed in the top end of the wiring cylinder, and a fixing bolt is movably connected with the top end of the wiring cylinder.

[0012] The utility model relates to a large section bone defect molding tool, wherein the fixing bolt penetrates through the threaded hole and extends to the inside of the wiring cylinder, and the threaded hole is in communication with the inside of the wiring cylinder.

[0013] The utility model relates to a large section bone defect molding tool, wherein the top end of the inside of the shell body is fixedly connected with a cross beam on one side, a support wheel is arranged on the outside of the cross beam, two groups of ball grooves are formed in the inside of the support wheel and the outside of the cross beam respectively, and support balls are movably connected with the inside of the ball grooves.

[0014] The utility model relates to a large section bone defect molding tool, wherein the center line of the cross beam is on the same vertical plane with the center line of the support wheel, and the support wheel is movably connected with the wire saw.

[0015] The utility model relates to a large section bone defect molding tool, which is different from the prior art.

[0016] The utility model relates to a large section bone defect molding tool, which is different from the prior art.

[0017] The utility model discloses a big section bone defect moulding tool through setting up carousel, connecting cylinder, fixed bolt and thread hole, before cutting, the one end of fretsaw is passed through the femur of required cutting, then inserts its inside connecting cylinder, after that, fixed bolt is inserted inside thread hole and rotates it, and fixed bolt drops and presses the top end of fretsaw, thereby cooperating connecting cylinder and positioning fretsaw, then can cut through the carousel and pull fretsaw movement, realize that can conveniently connect fretsaw.

[0018] The utility model discloses a big section bone defect moulding tool through setting up support wheel, support ball, crossbeam and ball groove, the crossbeam is fixed in the shell body inside this structure, and the support wheel outside crossbeam is attached to the bottom end of fretsaw and can support fretsaw, and the support ball in the ball groove can improve the stability of support wheel rotation, and support the support wheel simultaneously, and the support wheel can reduce the swing amplitude of fretsaw when cutting and reduce the damage area, and the support wheel is made of high strength metal material, can withstand fretsaw abrasion for a long time, realize that can support fretsaw and reduce its swing amplitude.

[0019] The utility model discloses a big section bone defect moulding tool further makes a further explanation below with the attached drawing. DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the front view cross section structure schematic diagram of the utility model discloses a big section bone defect moulding tool;

[0021] Figure 2 It is the side view cross section structure schematic diagram of transmission frame in the utility model discloses a big section bone defect moulding tool;

[0022] Figure 3 It is Figure 1 It is the local enlarged view of A place in middle;

[0023] Figure 4 It is the side view cross section structure schematic diagram of connecting cylinder in the utility model discloses a big section bone defect moulding tool;

[0024] Marked in the drawing shows that 1-outer shell body;2-fretsaw;3-trip;4-connection plate;5-fixed sleeve;6-movable groove;7-spring;8-sliding slot;9-fixed rod;10-transmission frame;11-positioning shaft;12-fan-shaped plate;13-transmission tooth block;14-carousel;15-transmission gear;16-fixed shaft;17-connecting cylinder;18-fixed bolt;19-transmission shaft;20-first positioning cylinder;21-support wheel;22-support ball;23-crossbeam;24-ball groove;25-second positioning cylinder;26-thread hole. PREFERRED EMBODIMENT

[0025] The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0026] Embodiment

[0027] As Figures 1-4 shown, the utility model discloses a large segment bone defect molding tool includes the shell body 1, the inside of shell body 1 is provided with wire saw 2, the inside of shell body 1 is provided with two groups of turntable 14, the inside of shell body 1 is provided with the drive structure for the quick drive wire saw 2 movement.

[0028] Drive structure includes transmission frame 10, the inside of shell body 1 is provided with transmission frame 10, the both ends of transmission frame 10 top are fixedly connected with sector plate 12, one end of sector plate 12 is fixedly connected with first locating cylinder 20, the inside of shell body 1 is fixedly connected with locating shaft 11, the top of sector plate 12 is fixedly connected with transmission gear block 13, the both ends of transmission frame 10 are provided with sliding slot 8, one side of the inside of shell body 1 is fixedly connected with fixed sleeve 5, the inside of transmission frame 10 is movably connected with connecting plate 4, connecting plate 4 penetrates fixed sleeve 5 and extends to the outside of shell body 1 and is fixedly connected with trigger 3, one side of connecting plate 4 is provided with movable slot 6, one side of the inside of movable slot 6 is fixedly connected with spring 7, the other side of the inside of shell body 1 is fixedly connected with fixed rod 9, the both ends of connecting plate 4 are fixedly connected with transmission shaft 19, one end of turntable 14 is fixedly connected with transmission gear 15, the other end of turntable 14 is fixedly connected with second locating cylinder 25, the top of the inside of shell body 1 is fixedly connected with fixed shaft 16.

[0029] Fixed rod 9 and movable slot 6 are slidably connected, fixed shaft 16 and second locating cylinder 25 are movably connected.

[0030] Sliding slot 8 and transmission shaft 19 are slidably connected, transmission gear block 13 and transmission gear 15 are meshedly connected.

[0031] The center line of transmission gear 15 and the center line of turntable 14 are on the same vertical plane, and locating shaft 11 and first locating cylinder 20 are movably connected.

[0032] Specifically, as Figure 1 , Figure 2 and Figure 4 shown, in use, press the trigger 3 and push the connecting plate 4 to move, the connecting plate 4 drives the transmission shaft 19 at both ends to move and drives the sector plate 12 to rotate through the transmission frame 10, the sector plate 12 drives the transmission gear 15 to rotate through the transmission gear block 13 at its top, and finally the transmission gear 15 drives the connecting cylinder 17 to move through the turntable 14, thereby pulling the wire saw 2 to move, and then the spring 7 in the movable slot 6 pushes the connecting plate 4 to move reversely to pull the wire saw 2 to move reversely, and multiple times of pressing the trigger 3 can pull the wire saw 2 to move back and forth to realize cutting, which realizes that the wire saw 2 can be conveniently driven manually to cut.

[0033] The top of one end of the rotating disc 14 is fixedly connected with a wire connecting cylinder 17, the top end of the wire connecting cylinder 17 is provided with a threaded hole 26, and the top end of the wire connecting cylinder 17 is movably connected with a fixing bolt 18.

[0034] The fixing bolt 18 penetrates through the threaded hole 26 and extends into the interior of the wire connecting cylinder 17, and the threaded hole 26 is in communication with the interior of the wire connecting cylinder 17.

[0035] Specifically, as shown in Figure 1 and Figure 4 , before cutting, one end of the wire saw 2 is inserted into the interior of the wire connecting cylinder 17 after penetrating through the femur to be cut, then the fixing bolt 18 is inserted into the interior of the threaded hole 26 and rotated, the fixing bolt 18 is lowered and pressed on the top end of the wire saw 2, so that the wire connecting cylinder 17 positions the wire saw 2, then the wire saw 2 can be pulled to move for cutting through the rotating disc 14, and the wire saw 2 can be conveniently connected.

[0036] One side of the top end of the inner shell body 1 is fixedly connected with a cross beam 23, the outer portion of the cross beam 23 is provided with a supporting wheel 21, and the interior of the supporting wheel 21 and the outer portion of the cross beam 23 are respectively provided with two groups of ball grooves 24, and the interior of the ball groove 24 is movably connected with a supporting ball 22.

[0037] The center line of the cross beam 23 and the center line of the supporting wheel 21 are on the same vertical plane, and the supporting wheel 21 is movably connected with the wire saw 2.

[0038] Specifically, as shown in Figure 1 and Figure 3 , the cross beam 23 is fixed in the inner shell body 1 of the structure, the supporting wheel 21 on the outer portion of the cross beam 23 is attached to the bottom end of the wire saw 2 to support the wire saw 2, and the supporting ball 22 in the ball groove 24 can improve the stability of the rotation of the supporting wheel 21, and the supporting wheel 21 supports the wire saw 2, the supporting wheel 21 supports the wire saw 2 to reduce the swing amplitude of the wire saw 2 during cutting, thereby reducing the damage area, the supporting wheel 21 is made of high-strength metal material and can withstand the abrasion of the wire saw 2 for a long time, and the wire saw 2 can be supported to reduce the swing amplitude.

[0039] Working principle: the utility model discloses a large section bone defect molding tool when using, before cutting, the one end of wire saw 2 is passed through the femur required to cut, then it is inserted into the inside of wire connecting cylinder 17, after that, fixed bolt 18 is inserted into the inside of screw hole 26 and rotates it, and fixed bolt 18 drops and is pressed on the top end of wire saw 2, so as to cooperate wire connecting cylinder 17 and position wire saw 2, then can cut through the carousel 14 and pull wire saw 2 movement, when using, press trigger 3 and promote connecting plate 4 movement, connecting plate 4 drives both ends transmission shaft 19 movement and through transmission frame 10 drive fan-shaped plate 12 rotation, fan-shaped plate 12 through its top transmission tooth block 13 drive transmission gear 15 rotation, finally transmission gear 15 through carousel 14 drive wire connecting cylinder 17 movement, so as to pull wire saw 2 movement, after spring 7 in movable slot 6 inside promotes connecting plate 4 reverse movement, to reverse pull wire saw 2 movement, repeatedly press trigger 3 can pull wire saw 2 back and forth movement and realize cutting, the inside fixed in the shell body 1 of this structure is crossbeam 23, and the support wheel 21 outside crossbeam 23 is attached on the bottom end of wire saw 2 and can support wire saw 2, and the support ball 22 in ball groove 24 can improve the stability of support wheel 21 rotation, simultaneously support support wheel 21, and the support wheel 21 supports wire saw 2 and can reduce the swing amplitude of wire saw 2 when cutting, so as to reduce the damage area, and support wheel 21 is made of high-strength metal material, can long time bear the abrasion of wire saw 2.

[0040] Although the utility model has been described in detail above with general description and specific embodiment, but on the basis of the utility model, some modifications or improvements can be made, which is obvious to the person skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model, all belong to the scope of the utility model claimed.

Claims

1. A tool for creating a model of a large bone defect, comprising an outer shell, characterized in that: The outer casing is equipped with a wire saw, two sets of turntables, and a drive structure for rapidly driving the wire saw. The drive structure includes a transmission frame, which is located inside the outer casing. Sector-shaped plates are fixedly connected to both ends of the top of the transmission frame. A first positioning cylinder is fixedly connected to one end of each sector-shaped plate. A positioning shaft is fixedly connected inside the outer casing. A transmission gear block is fixedly connected to the top of each sector-shaped plate. Slide grooves are formed at both ends of the transmission frame. A fixed sleeve is fixedly connected to one side of the inner casing. A connecting plate is movably connected inside the transmission frame. The connecting plate passes through the fixed sleeve and extends to the outside of the outer casing, where a trigger is fixedly connected. A movable groove is formed on one side of the connecting plate. A spring is fixedly connected to one side of the movable groove. A fixed rod is fixedly connected to the other side of the inner casing. Transmission shafts are fixedly connected to both ends of the connecting plate. A transmission gear is fixedly connected to one end of the turntable. A second positioning cylinder is fixedly connected to the other end of the turntable. A fixed shaft is fixedly connected to the top of the inner casing.

2. The tool for creating a model of a large bone defect according to claim 1, characterized in that: The fixed rod is slidably connected to the movable groove, and the fixed shaft is movably connected to the second positioning cylinder.

3. The tool for creating a model of a large bone defect according to claim 1, characterized in that: The slide groove is slidably connected to the drive shaft, and the drive tooth block is meshed with the drive gear.

4. The tool for creating a model of a large bone defect according to claim 1, characterized in that: The centerline of the transmission gear is on the same vertical plane as the centerline of the turntable, and the positioning shaft is movably connected to the first positioning cylinder.

5. The tool for creating a model of a large bone defect according to claim 1, characterized in that: A wiring tube is fixedly connected to the top of one end of the turntable. A threaded hole is opened at the top of the wiring tube, and a fixing bolt is movably connected to the top of the wiring tube.

6. The tool for creating a model of a large bone defect according to claim 5, characterized in that: The fixing bolt passes through the threaded hole and extends into the interior of the junction box, and the threaded hole is connected to the interior of the junction box.

7. The tool for creating a model of a large bone defect according to claim 1, characterized in that: A crossbeam is fixedly connected to one side of the top of the inner shell. A support wheel is provided on the outside of the crossbeam. Two sets of ball grooves are opened inside the support wheel and outside the crossbeam, and support balls are movably connected inside the ball grooves.

8. A large-segment bone defect modeling tool according to claim 7, characterized in that: The centerline of the crossbeam and the centerline of the support wheel are on the same vertical plane, and the support wheel is movably connected to the wire saw.

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