In-vitro positioner for assisting steel nail implantation

Abstract

The utility model discloses an in-vitro positioner for assisting in implanting a steel nail. The in-vitro positioner comprises a mounting barrel and an upper clamping plate, sliding columns are connected into the mounting barrels in a sliding mode, locking mechanisms are arranged at the upper ends of the mounting barrels, and the locking mechanisms and the adjacent sliding columns on the upper sides are installed in a matched mode; the upper clamping plate is connected between the two sliding columns in a sliding mode, a lower clamping plate is arranged in the middle of the position between the two sliding columns, the lower clamping plate and the upper clamping plate are L-shaped clamping plates, the lower clamping plate and the upper clamping plate are symmetrically arranged up and down, gap adjustable mechanisms are arranged in the sliding columns, and the gap adjustable mechanisms and the upper clamping plate are installed in a matched mode. The gap adjustable mechanism comprises a lead screw, a sliding block and a hand wheel, sliding grooves are formed in the opposite inner sides of the outer arc face of the sliding column, according to the in-vitro positioner for assisting in steel nail implantation, a doctor conducts accurate positioning and guiding operation, the operation time can be saved, steel nail implantation deviation caused by hand shaking is avoided, and then the operation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to orthopedics operation technical field, concretely is a kind of in-vitro positioner for assisting steel nail implantation. BACKGROUND

[0002] Steel nail implantation in orthopedics operation is a common treatment method, for the fracture of long bone of four limbs, such as femur, tibia, humerus etc., steel nail can provide stable fixation, promote fracture healing, in some joint diseases such as severe arthritis, traumatic arthritis etc. lead to serious joint function damage, steel nail can be used to fix joint, make it fuse, relieve pain and improve joint stability, after partial bone tumor resection, steel nail and other internal fixation materials are needed to reconstruct the continuity and stability of bone, restore limb function;

[0003] Some traditional steel nail implantation technology still needs doctor to hold steel needle, and there are some problems in adjusting the needle entry angle of steel needle by relying on own experience, often doctor cannot guarantee the stability of hand all the time under long time work, can cause deviation in steel nail implantation process, for this purpose, we propose a kind of in-vitro positioner for assisting steel nail implantation. UTILITARY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide an in-vitro positioner for assisting steel nail implantation, which can be accurately positioned and guided by the doctor, which can save operation time, avoid deviation caused by hand shaking during steel nail implantation, improve operation efficiency, and effectively solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: an in-vitro positioner for assisting steel nail implantation, including installation barrel and upper clamping plate;

[0006] The installation barrel is internally connected with a sliding column, the upper end of the installation barrel is provided with a locking mechanism, and the locking mechanism is connected with the sliding column adjacent to the upper side;

[0007] The upper clamping plate is slidably connected between the two sliding columns, and a lower clamping plate is arranged in the middle of the two sliding columns, the lower clamping plate and the upper clamping plate are both L-shaped clamping plates, the lower clamping plate and the upper clamping plate are arranged symmetrically, the inside of the sliding column is provided with a gap adjustable mechanism, the gap adjustable mechanism is connected with the upper clamping plate, the doctor can accurately position and guide operation, which can save operation time, avoid deviation caused by hand shaking during steel nail implantation, and improve operation efficiency.

[0008] Further, the gap adjustable mechanism comprises a screw rod, a sliding block and a hand wheel, arc outer surfaces of the sliding column are provided with sliding grooves on opposite inner sides, the sliding grooves are slidably connected with the sliding blocks, the upper clamping plate is fixedly connected between the two sliding blocks, the sliding column is rotationally connected with the screw rod between upper and lower inner walls, the sliding blocks are threadedly connected with transversely adjacent screw rods away from the outer ends, and the hand wheels are arranged at the upper end surfaces of the screw rods.

[0009] Further, the locking mechanism comprises a sleeve and a pressing block, the sleeve is fixedly sleeved on the outer arc surface of the upper end of the installation barrel, the pressing block is slidably connected between the upper and lower inner walls of the sleeve, the outer arc surface of the upper end of the installation barrel is provided with an avoiding groove corresponding to the adjacent pressing block, the arc outer surface of the sliding column is provided with a locking groove on the opposite inner side, and the pressing block is mounted in cooperation with the transversely adjacent locking groove, so that the locking is facilitated.

[0010] Further, the locking mechanism further comprises a pin shaft and a pressing column, the upper and lower inner walls of the sleeve are provided with the pin shaft, the outer arc surface of the pin shaft is rotationally connected with the pressing column, the center axis of the pressing column does not coincide with that of the adjacent pin shaft, and the pressing column is mounted in cooperation with the adjacent pressing block, so that the pressing block is facilitated to be pushed.

[0011] Further, the locking mechanism further comprises a pulling rod, a insertion hole and an insertion groove, the outer arc surface rear end of the pressing column is provided with the pulling rod, the rear end of the pulling rod is provided with the insertion hole, the rear side of the sleeve is provided with the insertion groove, and the insertion groove is mounted in cooperation with the rear side adjacent insertion hole, so that the locking state is maintained.

[0012] Further, the lower end of the installation barrel is provided with a connecting joint, and the connecting rod one is fixedly connected between the two connecting joints, so that stability is provided.

[0013] Further, the front end of the connecting joint is provided with a telescopic rod, the outer arc surface middle part of the fixed end of the telescopic rod and the telescopic end head are provided with the connecting sleeve, the two transversely adjacent connecting sleeves are fixedly connected with the connecting rod two, and stability is provided.

[0014] Compared with the prior art, the auxiliary steel nail implantation external positioner has the following advantages:

[0015] Through cooperation of the installation barrel, the sliding column, the upper clamping plate and the lower clamping plate, and through clear three-dimensional position relationship with the bone in the intraoperative perspective, the upper clamping plate and the lower clamping plate are adjusted in the whole height, and the gap between the upper clamping plate and the lower clamping plate is adjusted, so that the operation is convenient, the doctor can accurately position and guide the operation, the operation time can be saved, and the operation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the right view of 45 degrees of the front end of the utility model.

[0017] Figure 2 It is the structure schematic view of the enlarged A place of the utility model;

[0018] Figure 3 It is the structure schematic view of the rear end left view 45 degrees of the utility model;

[0019] Figure 4 It is the structure schematic view of the installation barrel and the slide column partial explosion of the utility model;

[0020] Figure 5 It is the structure schematic view of the installation barrel, the slide column and the locking mechanism partial explosion of the utility model;

[0021] Figure 6 It is the structure schematic view of the locking mechanism partial of the utility model.

[0022] In the drawing: 1 installation barrel, 101 avoidance groove, 2 gap adjustable mechanism, 21 screw rod, 22 sliding block, 23 hand wheel, 3 slide column, 31 locking groove, 32 sliding groove, 4 upper clamping plate, 5 lower clamping plate, 6 locking mechanism, 61 sleeve, 62 pin shaft, 63 tight column, 64 tight block, 65 lever, 66 jack, 67 slot, 7 connecting joint, 8 connecting rod one, 9 telescopic rod, 10 connecting sleeve, 11 connecting rod two. DETAILED DESCRIPTION

[0023] The technical schemes in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0024] Please refer to Figures 1-6 The embodiment provides a kind of technical scheme: a kind of auxiliary steel nail implantation is positioned in vitro, including installation barrel 1 and upper clamping plate 4;

[0025] The installation barrel 1 is internally slidably connected with the slide column 3, the upper end of the installation barrel 1 is provided with the locking mechanism 6, the locking mechanism 6 is matched and installed with the slide column 3 adjacent to the upper side, the locking mechanism 6 comprises the sleeve 61 and the pressing block 64, the sleeve 61 is fixedly sleeved on the outer arc surface of the upper end of the installation barrel 1, the pressing block 64 is slidably connected between the upper and lower inner walls of the sleeve 61, the outer arc surface of the upper end of the installation barrel 1 is provided with the avoiding groove 101 corresponding to the adjacent pressing block 64, the outer arc surface of the relative inner side of the slide column 3 is provided with the locking groove 31, the pressing block 64 is matched and installed with the locking groove 31 adjacent to the transverse direction (the end of the pressing block 64 close to the locking groove 31 is arc-shaped A, the locking groove 31 is arc-shaped B, the diameter of the arc-shaped A is not greater than the diameter of the arc-shaped B), the locking mechanism 6 further comprises the pin shaft 62 and the pressing column 63, the pin shaft 62 is arranged between the upper and lower inner walls of the sleeve 61, the outer arc surface of the pin shaft 62 is rotatably connected with the pressing column 63, the center axis of the pressing column 63 is not coincident with the center axis of the adjacent pin shaft 62, the pressing column 63 is matched and installed with the adjacent pressing block 64 (the outer arc surface of the pressing column 63 close to the pressing block 64 is in contact with the pressing block 64 in the initial state), the locking mechanism 6 further comprises the lever 65, the insertion hole 66 and the insertion groove 67, the rear end of the outer arc surface of the pressing column 63 is provided with the lever 65, the rear end of the lever 65 is provided with the insertion hole 66, the rear side of the sleeve 61 is provided with the insertion groove 67, the insertion groove 67 is matched and installed with the insertion hole 66 adjacent to the rear side, the lower end of the installation barrel 1 is provided with the connecting joint 7, the connecting joint 7 is fixedly connected with the connecting rod one 8 between two connecting joints 7, the front end of the connecting joint 7 is provided with the telescopic rod 9, the fixed end outer arc surface middle part and the telescopic end head of the telescopic rod 9 are provided with the connecting sleeve 10, the connecting sleeve 10 is fixedly connected with the connecting rod two 11 between two transversely adjacent connecting sleeves 10, the doctor adjusts the telescopic rod 9 by means of intraoperative perspective according to the patient's limb condition, pulls the telescopic end of the telescopic rod 9, and simultaneously the telescopic end of the telescopic rod 9 drives the connecting rod two 11 on the front side to move synchronously through the two connecting sleeves 10 on the front side, the adjustment is convenient for the patient's limb to be placed on the external positioner, the three-dimensional relationship between the bone and the external positioner is clear, the stability of the external positioner can be ensured, then the doctor adjusts the sliding position of the slide column 3, pulls the slide column 3 upwards, at this time the slide column 3 slides in the interior of the adjacent installation barrel 1, thereby drives the lower clamping plate 5 and the upper clamping plate 4 to move synchronously, the position relationship between the lower clamping plate 5, the upper clamping plate 4 and the bone after the previous perspective is clear through the C-arm machine perspective again, when moving to the appropriate position, the two levers 65 are manually rotated (the rotation direction is the direction that the two levers 65 are away from each other), thereby drives the adjacent pressing column 63 to rotate, because the pressing column 63 is eccentrically arranged with the adjacent pin shaft 62, the end of the pressing column 63 away from the center axis of the pin shaft 62 gradually extrudes the adjacent pressing block 64, and the pressing block 64 is close to the adjacent slide column 3, until the arc-shaped end of the pressing block 64 enters the interior of the adjacent locking groove 31 and locks the slide column 3 through the locking groove 31, at this time the insertion hole 66 of the rear end of the lever 65 is flush with the adjacent insertion groove 67, the doctor takes the external insertion pin,The inside of the adjacent jack 66 and the slot 67 is inserted in turn, the current position of the slide column 3 is kept, and the adjustment according to the patient's condition is facilitated.

[0026] The upper clamping plate 4 is slidably connected between the two slide columns 3, and the middle part between the two slide columns 3 is provided with the lower clamping plate 5. The lower clamping plate 5 and the upper clamping plate 4 are both L-shaped clamping plates, and the lower clamping plate 5 is symmetrically arranged with the upper clamping plate 4. The inside of the slide column 3 is provided with the gap adjustable mechanism 2, and the gap adjustable mechanism 2 is installed in cooperation with the upper clamping plate 4. The gap adjustable mechanism 2 includes a lead screw 21, a sliding block 22 and a hand wheel 23. The outer arc surface of the slide column 3 is provided with a sliding groove 32 on the opposite inner side. The sliding groove 32 is slidably connected with the sliding block 22 inside. The upper clamping plate 4 is fixedly connected between the two sliding blocks 22. The slide column 3 is rotatably connected between the upper and lower inner walls of the slide column 3. The sliding block 22 is threadedly connected with the transversely adjacent lead screw 21 away from the outer end. The upper end surface center of the lead screw 21 is provided with the hand wheel 23. The doctor adjusts the gap between the lower clamping plate 5 and the upper clamping plate 4. The doctor rotates the two hand wheels 23 at the same time. The hand wheel 23 drives the adjacent lead screw 21 to rotate. At this time, under the cooperation of the screw, the two sliding blocks 22 are longitudinally moved, and the upper clamping plate 4 is synchronously longitudinally moved. When the gap between the lower clamping plate 5 and the upper clamping plate 4 is adjusted to be appropriate, the doctor stops rotating the hand wheel 23. At this time, the doctor inserts the steel needle into the gap between the lower clamping plate 5 and the upper clamping plate 4. The adjustment of the steel needle can only be carried out in the gap between the lower clamping plate 5 and the upper clamping plate 4. The steel needle can be parallelly inserted, or the insertion angle can be slightly adjusted. The operation is convenient, and the doctor can accurately position and guide the operation. This can save the operation time and improve the operation efficiency.

[0027] The working principle of the auxiliary steel nail implantation external positioner is as follows: firstly, a doctor adjusts the telescopic rod 9 according to the condition of a patient's limbs, pulls the telescopic end of the telescopic rod 9, and simultaneously the telescopic end of the telescopic rod 9 drives the front connecting sleeve 10 to drive the front connecting rod 11 to move synchronously, the adjustment is convenient for the patient's limbs to be placed on the external positioner, the three-dimensional relationship between the bone and the external positioner is clear, and the stability of the external positioner can be ensured; then the doctor adjusts the sliding position of the sliding column 3, pulls the sliding column 3 upwards, the sliding column 3 slides in the adjacent installation barrel 1, and then drives the lower clamping plate 5 and the upper clamping plate 4 to move synchronously (the gap between the lower clamping plate 5 and the upper clamping plate 4 can also be adjusted according to the thickness of the needle required), the C-arm machine is used for perspective again, the position relationship between the lower clamping plate 5, the upper clamping plate 4 and the bone after the previous perspective is clear, when the position is moved to the appropriate position, the two shift rods 65 are manually rotated (the rotation direction is the direction that the two shift rods 65 are away from each other), and then the adjacent jacking column 63 is driven to rotate, because the jacking column 63 and the adjacent pin shaft 62 are eccentrically arranged, the end, away from the center axis of the pin shaft 62, of the jacking column 63 gradually extrudes the adjacent jacking block 64, and the jacking block 64 is close to the adjacent sliding column 3, until the arc-shaped end of the jacking block 64 enters the inside of the adjacent locking groove 31 and the sliding column 3 is jacked by the locking groove 31, at this time, the insertion hole 66 at the rear end of the shift rod 65 is flush with the adjacent insertion slot 67, the doctor takes the external insertion pin, and sequentially inserts the insertion pin into the inside of the adjacent insertion hole 66 and the insertion slot 67, the current position of the sliding column 3 is kept, then the doctor adjusts the gap between the lower clamping plate 5 and the upper clamping plate 4 (the gap is adjusted according to the thickness of the needle required, and the lower clamping plate 5 and the upper clamping plate 4 determine a plane), the doctor rotates the two hand wheels 23 at the same time, the hand wheel 23 drives the adjacent screw rod 21 to rotate, at this time, under the cooperation of the screw threads, the two sliding blocks 22 are driven to move longitudinally, and then the upper clamping plate 4 is driven to move longitudinally synchronously, when the gap between the lower clamping plate 5 and the upper clamping plate 4 is adjusted to the appropriate position, the doctor stops rotating the hand wheel 23, at this time, the doctor inserts the steel needle into the gap between the lower clamping plate 5 and the upper clamping plate 4, and the adjustment of the steel needle can only be made in the gap between the lower clamping plate 5 and the upper clamping plate 4, the needle can be inserted in parallel, or the angle of the needle can be slightly adjusted.

[0028] The above only describes the embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion in the utility model specification and the attached drawing contents, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. An external positioner for assisting in the implantation of a steel nail, characterized in that: It includes installation bucket (1) and upper clamping plate (4); The installation bucket (1) is internally slidably connected with the slide column (3), and the upper end of the installation bucket (1) is provided with a locking mechanism (6), and the locking mechanism (6) is matched and installed with the slide column (3) adjacent to the upper side; The upper clamping plate (4) is slidably connected between the two slide columns (3), and the middle part between the two slide columns (3) is provided with a lower clamping plate (5), the lower clamping plate (5) and the upper clamping plate (4) are both L-shaped clamping plates, the lower clamping plate (5) and the upper clamping plate (4) are symmetrically arranged, and the inner part of the slide column (3) is provided with a gap adjustable mechanism (2), and the gap adjustable mechanism (2) is matched and installed with the upper clamping plate (4).

2. The external locator for assisting in the implantation of a steel nail according to claim 1, characterized in that: The gap adjustable mechanism (2) comprises a lead screw (21), a sliding block (22) and a hand wheel (23), the outer arc surface opposite inner side of the slide column (3) is provided with a sliding groove (32), the inner part of the sliding groove (32) is slidably connected with the sliding block (22), the upper clamping plate (4) is fixedly connected between the two sliding blocks (22), and the slide column (3) is rotatably connected with the lead screw (21) between the upper and lower inner walls, the outer end away from the outer end of the sliding block (22) is threadedly connected with the transversely adjacent lead screw (21), and the upper end surface center of the lead screw (21) is provided with the hand wheel (23).

3. The external positioner for assisting in the implantation of a steel nail according to claim 1, characterized in that: The locking mechanism (6) comprises a sleeve (61) and a tightening block (64), the sleeve (61) is fixedly sleeved on the outer arc surface upper end of the installation bucket (1), the upper and lower inner walls of the sleeve (61) are slidably connected with the tightening block (64), the outer arc surface upper end of the installation bucket (1) is provided with an avoiding groove (101) corresponding to the adjacent tightening block (64), and the outer arc surface opposite inner side of the slide column (3) is provided with a locking groove (31), and the tightening block (64) is matched and installed with the transversely adjacent locking groove (31).

4. The external positioner for assisting in the implantation of a steel nail according to claim 3, characterized in that: The locking mechanism (6) further comprises a pin shaft (62) and a tightening column (63), the upper and lower inner walls of the sleeve (61) are provided with the pin shaft (62), the outer arc surface of the pin shaft (62) is rotatably connected with the tightening column (63), the center axis of the adjacent pin shaft (62) is not coincided with the tightening column (63), and the adjacent tightening block (64) is matched and installed with the tightening column (63).

5. An external locator for assisting in the implantation of a steel nail according to claim 4, characterized in that: The locking mechanism (6) further comprises a pull rod (65), a plug hole (66) and a plug groove (67), the outer arc surface rear end of the tightening column (63) is provided with the pull rod (65), the rear end of the pull rod (65) is provided with the plug hole (66), the rear side of the sleeve (61) is provided with the plug groove (67), and the plug groove (67) is matched and installed with the rear side adjacent plug hole (66).

6. The external position locator for assisting in the implantation of a steel nail according to claim 1, characterized in that: The lower end of the installation bucket (1) is provided with a connecting joint (7), and the two connecting joints (7) are fixedly connected with a connecting rod one (8).

7. An external position locator for assisting in the implantation of a steel nail according to claim 6, characterized in that: The front end of the connecting joint (7) is provided with a telescopic rod (9), the outer arc surface middle part of the fixed end of the telescopic rod (9) and the telescopic end head are provided with a connecting sleeve (10), and the two transversely adjacent connecting sleeves (10) are fixedly connected with a connecting rod two (11).

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