Auxiliary positioning mechanism for bone traction needle

Abstract

The utility model discloses an auxiliary positioning mechanism for a bone traction needle, which relates to the technical field of auxiliary positioning mechanisms for bone traction needles and particularly comprises a handle, the inner side wall of the handle is rotatably connected with a movable block through a shaft rod, the outer surface of the movable block is provided with a limiting block, and the upper side of the inner side wall of the handle is connected with a depth control rod in an inserted manner. A positioning end is arranged at one end of the depth control rod, a micro tilt angle sensor is arranged on the inner side wall of the handle, a movable fixing block is rotationally connected to the interior of one end of the cylindrical shell through a bearing, a vortex-shaped sliding rail is arranged on one side face of the rotating disc, a movable frame is slidably connected to the inner side wall of the cylindrical shell, and a crown gear is arranged on the other side face of the rotating disc. An adjusting knob is arranged at the upper end of the adjusting rod, an LED warning lamp is arranged on the upper surface of the cylindrical shell, and the device has the beneficial effects that the depth and angle of the bone traction needle body can be accurately positioned conveniently, and the device can adapt to bone traction needle bodies of various specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of bone traction needle auxiliary positioning mechanisms, in particular to a bone traction needle auxiliary positioning mechanism. Background Art

[0002] Calcaneal traction is a commonly used treatment method in orthopedics. Through the traction device, the traction weight is used as the traction force, and the body weight is used as the counter-traction force to relieve muscle tension and strong contraction, slowly reposition the fracture, prevent and correct soft tissue contracture, and perform preoperative tissue release and postoperative immobilization. It is suitable for tibial condyle fractures, unstable tibia and fibula fractures, comminuted ankle fractures, upward displacement of calcaneal fractures, knee flexion contracture deformity, etc. The bone traction needle consists of a head, a needle body and a tail, and is divided into two types: threaded type and bare rod type. It is made of stainless steel or titanium alloy. It is provided non-sterile. It must be sterilized by the user according to the instructions before use. It is not used under endoscopy. This product is suitable for traction, positioning or fixation during fracture surgery.

[0003] The existing bone traction needle auxiliary positioning mechanism is installed on the medical electric drill when in use. In actual use, since the normal tibia has a slight outer arc, when puncturing the calcaneus, the needle must be slightly tilted 15 degrees with the ankle joint surface, that is, the inner side of the needle is low at the needle entry point and the outer side of the needle is high (the outer point should be slightly higher than the inner point), so that the physiological curvature of the tibia can be restored during traction. Since the ankle and foot are relatively swollen after lower limb fractures, and the surgeon often relies on feeling to operate, the angle is often not ideal. At this time, the doctor needs to accurately control the medical electric drill. When the angle and depth are offset, it often causes the recovery effect to be less than ideal, which requires high technical skills of the doctor. Therefore, a bone traction needle auxiliary positioning mechanism is urgently needed to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a bone traction needle auxiliary positioning mechanism, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A bone traction needle auxiliary positioning mechanism comprises a handle, the inner wall of the handle is rotatably connected to a movable block through a shaft rod, a limit block is arranged on the outer surface of the movable block, a depth control rod is inserted on the upper side of the inner wall of the handle, a positioning end is arranged at one end of the depth control rod, a micro inclination sensor is arranged on the inner wall of the handle, a cylindrical shell is arranged on the upper end of the handle, a movable fixed block is rotatably connected to the inside of one end of the cylindrical shell through a bearing, a turntable is rotatably connected to the inner wall of the movable fixed block, a vortex slide rail is arranged on one side of the turntable, and a movable fixed block is slidably connected to the inner wall of the cylindrical shell The present invention relates to a frame, one end of the movable frame is rotatably connected to a positioning wheel through an axle rod, a crown gear is arranged on the other side of the turntable, an inner hexagonal rotating block is rotatably connected to the upper side of the inner side wall of the cylindrical shell, a gear is fixedly connected to the lower end of the inner hexagonal rotating block, an adjusting rod is movably connected to the inner side wall of the upper side of the cylindrical shell, an outer hexagonal clamping block is arranged at the lower end of the adjusting rod, an adjusting knob is arranged at the upper end of the adjusting rod, an LED warning light is arranged on the upper surface of the cylindrical shell, a bone traction needle body is arranged at the middle part of the positioning wheel inside the cylindrical shell, and a positioning mark is arranged on the outer surface of the movable fixed block.

[0009] Optionally, an adjustment button is provided on the front of the handle, a display screen is provided on the front of the handle above the adjustment button, and a battery is provided on the inner wall of the handle.

[0010] Optionally, a first spring is provided on the outer surface of the movable block, and one end of the first spring abuts against the inner wall of the handle.

[0011] Optionally, a limit groove is provided on the lower surface of the depth control rod, and a plurality of limit grooves are provided and evenly distributed in a rectangular array, and one end of the limit block is clamped with the inner wall of the limit groove.

[0012] Optionally, a slide groove adapted to the spiral slide rail is provided on a side of the movable frame close to the turntable, and an inner side wall of the slide groove is slidably connected to an outer surface of the spiral slide rail.

[0013] Optionally, the outer surface of the gear is drivingly connected to the outer surface of the crown gear.

[0014] Optionally, a piston plate is provided on the outer surface of the adjusting rod, a second spring is provided on the lower surface of the piston plate, the lower end of the second spring abuts against the inner wall of the cylindrical shell, and the lower end of the outer hexagonal clamping block is adapted to the inner wall of the inner hexagonal rotating block.

[0015] Optionally, three of the movable frames and three of the positioning wheels are provided and are evenly distributed in a circular array.

[0016] (III) Beneficial effects

[0017] The utility model provides a bone traction needle auxiliary positioning mechanism, which has the following beneficial effects:

[0018] 1. The bone traction needle auxiliary positioning mechanism has the effect of facilitating the accurate positioning of the depth and angle of the bone traction needle body through the arrangement of the movable block, the limit block, the depth control rod, the limit groove and the positioning end head. The extended length of the depth control rod can be adjusted during use, so that the depth of the bone traction needle body can be well controlled. Moreover, through the arrangement of the adjustment button, the display screen, the micro-tilt sensor and the LED warning light, the predetermined angle can be first set through the adjustment button and the display screen during use, and the inclination angle of the device can be detected in real time through the micro-tilt sensor. When the conditions are met, the LED warning light turns on green, which can remind the doctor and facilitate the doctor to perform the operation more accurately, thereby achieving the purpose of facilitating the accurate positioning of the depth and angle of the bone traction needle body.

[0019] 2. The bone traction needle auxiliary positioning mechanism, through the arrangement of the movable fixing block, the turntable, the spiral slide rail, the movable frame and the positioning rotating wheel, enables the bone traction needle auxiliary positioning mechanism to have the effect of facilitating the fixing of bone traction needle bodies of various specifications. Through the coordinated arrangement of the three sets of movable frames and the positioning rotating wheel and the spiral slide rail, the bone traction needle body can be clamped and fixed during use. Through the arrangement of the turntable, the crown gear, the hexagonal rotating block and the gear, the distance between the three positioning rotating wheels can be adjusted, thereby achieving the purpose of being able to adapt to bone traction needle bodies of various specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the utility model from the front;

[0022] Figure 3 It is a schematic diagram of the structure of the front section of the utility model;

[0023] Figure 4 For this utility model Figure 3 The structural diagram at A in the middle;

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the movable fixed block of the utility model;

[0025] Figure 6 This is a schematic diagram of the first three-dimensional structure of the turntable of the utility model;

[0026] Figure 7 This is a schematic diagram of the second three-dimensional structure of the turntable of the utility model;

[0027] Figure 8 For this utility model Figure 3 Schematic diagram of the structure at B in the figure.

[0028] In the figure: 1. handle; 2. adjustment button; 3. display screen; 4. battery; 5. movable block; 6. limit block; 7. first spring; 8. depth control rod; 9. limit groove; 10. positioning end; 11. micro inclination sensor; 12. cylinder shell; 13. bearing; 14. movable fixed block; 15. turntable; 16. vortex slide rail; 17. movable frame; 18. positioning wheel; 19. crown gear; 20. hexagonal rotating block; 21. gear; 22. adjustment rod; 23. piston plate; 24. second spring; 25. hexagonal block; 26. adjustment knob; 27. LED warning light; 28. bone traction needle body; 29. ​​positioning mark. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] Example 1

[0031] The utility model provides a technical solution: a bone traction needle auxiliary positioning mechanism, comprising a handle 1, an adjusting button 2 is arranged in front of the handle 1, a display screen 3 is arranged in front of the handle 1 and above the adjusting button 2, a battery 4 is arranged on the inner side wall of the handle 1, a movable block 5 is rotatably connected to the inner side wall of the handle 1 through an axle rod, a limiting block 6 is arranged on the outer surface of the movable block 5, a first spring 7 is arranged on the outer surface of the movable block 5, one end of the first spring 7 is abutted against the inner side wall of the handle 1, a depth control rod 8 is inserted on the upper side of the inner side wall of the handle 1, a limiting groove 9 is arranged on the lower surface of the depth control rod 8, a plurality of limiting grooves 9 are arranged and are evenly distributed in a rectangular array, one end of the limiting block 6 is clamped with the inner side wall of the limiting groove 9, one end of the depth control rod 8 is arranged with a positioning terminal 10, and a micro inclination sensor 11 is arranged on the inner side wall of the handle 1.

[0032] In order to facilitate accurate positioning of the depth and angle of the bone traction needle body 28, as shown in the attached Figures 1 to 8As shown, the present application adopts the following structure. Through the arrangement of the movable block 5, the limit block 6, the depth control rod 8, the positioning terminal 10, the micro inclination sensor 11 and the LED warning light 27, the bone traction needle auxiliary positioning mechanism has the effect of facilitating the accurate positioning of the depth and angle of the bone traction needle body 28. First, hold the handle 1, press one end of the movable block 5 with your fingers, so that the limit block 6 is separated from the inside of the limit groove 9, and the extended length of the depth control rod 8 can be adjusted, and the distance between the positioning terminal 10 at the end of the depth control rod 8 and the end of the bone traction needle body 28 can be adjusted. That is, during the operation, when positioning is performed through the center of the positioning terminal 10, the arrangement of the positioning terminal 10 can well assist the doctor in positioning the depth of the bone traction needle body 28 and the position of the end of the bone traction needle body 28. Through the movable block 5, the limit block 6, the depth control rod 8, the positioning terminal 10 can be adjusted. The depth control rod 8, the limit groove 9 and the positioning end 10 are arranged in coordination. During use, the extended length of the depth control rod 8 can be adjusted, so that the depth of the bone traction needle body 28 can be well controlled. In addition, by adjusting the button 2, the display screen 3, the micro inclination sensor 11 and the LED warning light 27, a predetermined angle can be first set by adjusting the button 2 and the display screen 3. The micro inclination sensor 11 detects the inclination angle of the device in real time, and detects the angle of the bone traction needle body 28 in real time. When the conditions are met, the LED warning light 27 lights up green, otherwise it lights up red, which can remind the doctor. The doctor only needs to ensure the green light, which is convenient for the doctor to operate the operation more accurately, reduces the technical requirements for the doctor, and achieves the purpose of facilitating the accurate positioning of the depth and angle of the bone traction needle body 28.

[0033] Example 2

[0034] The utility model provides a technical solution: a cylindrical shell 12 is provided at the upper end of the handle 1, and a movable fixed block 14 is rotatably connected to the interior of one end of the cylindrical shell 12 through a bearing 13, and a turntable 15 is rotatably connected to the inner side wall of the movable fixed block 14, and a spiral slide 16 is provided on one side of the turntable 15, and a movable frame 17 is slidably connected to the inner side wall of the cylindrical shell 12, and the movable frame 17 and the positioning wheel 18 are both provided with three and evenly distributed in an annular array. A slide groove adapted to the spiral slide 16 is opened on one side of the movable frame 17 close to the turntable 15, and the inner side wall of the slide groove is slidably connected to the outer surface of the spiral slide 16, and one end of the movable frame 17 is rotatably connected to the positioning wheel 18 through a shaft rod, and the movable frame 17 and the positioning wheel 18 are both provided with three and evenly distributed in an annular array. A crown gear 19 is provided on the other side of the turntable 15, and the inner side of the cylindrical shell 12 An inner hexagonal rotating block 20 is rotatably connected to the upper side of the wall, and a gear 21 is fixedly connected to the lower end of the inner hexagonal rotating block 20. The outer surface of the gear 21 is transmission-connected to the outer surface of the crown gear 19. An adjusting rod 22 is movably connected to the inner side wall of the upper side of the cylindrical shell 12. A piston plate 23 is provided on the outer surface of the adjusting rod 22, and a second spring 24 is provided on the lower surface of the piston plate 23. The lower end of the second spring 24 abuts against the inner side wall of the cylindrical shell 12, and the lower end of the outer hexagonal clamping block 25 is adapted to the inner side wall of the inner hexagonal rotating block 20. An outer hexagonal clamping block 25 is provided at the lower end of the adjusting rod 22, and an adjusting knob 26 is provided at the upper end of the adjusting rod 22. An LED warning light 27 is provided on the upper surface of the cylindrical shell 12, and a bone traction needle body 28 is provided in the middle of the positioning wheel 18 inside the cylindrical shell 12, and a positioning mark 29 is provided on the outer surface of the movable fixed block 14.

[0035] In order to improve the adaptation performance, Figures 1 to 8As shown, the present application adopts the following structure. Through the arrangement of the movable fixing block 14, the rotating disk 15, the spiral slide rail 16, the movable frame 17 and the positioning wheel 18, the bone traction needle auxiliary positioning mechanism has the effect of facilitating the fixing of bone traction needle bodies 28 of various specifications. Through the coordinated arrangement of the three sets of movable frames 17 and the positioning wheel 18 and the spiral slide rail 16, the bone traction needle body 28 can be clamped and fixed during use. When using bone traction needle bodies 28 of different specifications, the distance between the three positioning wheels 18 can be adjusted through the arrangement of the rotating disk 15, the crown gear 19, the hexagonal rotating block 20 and the gear 21. When adjusting, the movable fixing block 14 is rotated to make the bone traction needle body 28 of the bone traction needle body 28 of the bone traction needle body 28 of different specifications be fixed. The positioning mark 29 is located right above the device. At this time, the adjusting knob 26 is pressed and turned at the same time. The outer hexagonal block 25 at the lower end of the adjusting knob 26 penetrates into the inner hexagonal rotating block 20. Turning the adjusting knob 26 will drive the inner hexagonal rotating block 20 and the gear 21 to rotate synchronously. When the gear 21 rotates, it drives the turntable 15 to rotate through the transmission connection with the crown gear 19. When the turntable 15 rotates, the spiral slide rail 16 on the other side will drive the three movable frames 17 to move toward the middle or open to the outside, thereby providing good adaptability for bone traction needle bodies 28 of different specifications, thereby achieving the purpose of being able to adapt to bone traction needle bodies 28 of various specifications.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bone traction needle auxiliary positioning mechanism, comprising a handle, characterized in that: The inner wall of the handle is rotatably connected to a movable block through an axle rod, a limit block is arranged on the outer surface of the movable block, a depth control rod is inserted on the upper side of the inner wall of the handle, a positioning end is arranged at one end of the depth control rod, a micro inclination sensor is arranged on the inner wall of the handle, a cylindrical shell is arranged on the upper end of the handle, a movable fixed block is rotatably connected to the inner side wall of the movable fixed block through a bearing, a turntable is rotatably connected to the inner side wall of the movable fixed block, a vortex slide rail is arranged on one side of the turntable, a movable frame is slidably connected to the inner side wall of the cylindrical shell, and one end of the movable frame is connected to the inner side wall of the cylindrical shell. The through-axis rod is rotatably connected to the positioning wheel, and a crown gear is provided on the other side of the turntable. The upper side of the inner wall of the cylindrical shell is rotatably connected to the inner hexagonal rotating block, and the lower end of the inner hexagonal rotating block is fixedly connected to a gear. The inner wall of the upper side of the cylindrical shell is movably connected to an adjusting rod, the lower end of the adjusting rod is provided with an outer hexagonal clamping block, the upper end of the adjusting rod is provided with an adjusting knob, an LED warning light is provided on the upper surface of the cylindrical shell, a bone traction needle body is provided in the middle of the positioning wheel inside the cylindrical shell, and a positioning mark is provided on the outer surface of the movable fixed block.

2. A bone traction needle auxiliary positioning mechanism according to claim 1, characterized in that: An adjustment button is arranged on the front of the handle, a display screen is arranged on the front of the handle above the adjustment button, and a battery is arranged on the inner wall of the handle.

3. The bone traction needle auxiliary positioning mechanism according to claim 1, characterized in that: A first spring is arranged on the outer surface of the movable block, and one end of the first spring abuts against the inner side wall of the handle.

4. The bone traction needle auxiliary positioning mechanism according to claim 1, characterized in that: A limiting groove is arranged on the lower surface of the depth control rod. A plurality of limiting grooves are arranged and evenly distributed in a rectangular array. One end of the limiting block is clamped with the inner wall of the limiting groove.

5. The bone traction needle auxiliary positioning mechanism according to claim 1, characterized in that: A slide groove matched with the spiral slide rail is provided on a side surface of the movable frame close to the rotating disk, and the inner side wall of the slide groove is slidably connected with the outer surface of the spiral slide rail.

6. The bone traction needle auxiliary positioning mechanism according to claim 1, characterized in that: The outer surface of the gear is drivingly connected to the outer surface of the crown gear.

7. The bone traction needle auxiliary positioning mechanism according to claim 1, characterized in that: The outer surface of the adjusting rod is provided with a piston plate, the lower surface of the piston plate is provided with a second spring, the lower end of the second spring abuts against the inner wall of the cylindrical shell, and the lower end of the outer hexagonal clamping block is adapted to the inner wall of the inner hexagonal rotating block.

8. The bone traction needle auxiliary positioning mechanism according to claim 1, characterized in that: There are three movable frames and three positioning wheels, which are evenly distributed in a circular array.

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