Fixing mechanism for traction positioning
By designing a traction positioning and fixing mechanism including tracks, positioning rods and adjustable positioning rod seat groups, the problems of complex assembly and inaccurate positioning of traditional bone reduction fixing tools are solved, and the rapid and accurate traction positioning and stability of the bones are achieved.
Patent Information
- Application Number
- CN202421114830.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-05-21
AI Technical Summary
Traditional bone reduction fixation tools are complicated to assemble, making it difficult to achieve the accuracy and stability of traction and pressurization positioning, resulting in poor growth force lines of bone and failure of deformity.
A fixing mechanism for traction positioning is designed, including a track, a positioning rod, a first positioning rod seat group and a second positioning rod seat group, and simple and efficient adjustment and accurate positioning of the positioning rod are achieved through fixing bolts and adjustment bolts.
The rapid and accurate traction positioning of the injured bones is achieved, the assembly process is simplified, the stability and accuracy of traction pressurized positioning are improved, and the risks of poor bone growth force lines and abnormal failure are avoided.
Smart Images
Figure CN222804410U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of traction devices, in particular to a fixing mechanism for traction positioning. Background Art
[0002] During the process of limb fracture reduction and deformity correction, auxiliary tools are needed to pull and position the limbs to provide rigid and stable fixation, which is conducive to accelerating bone healing.
[0003] Traditional bone reduction and fixation tools have many components and are difficult to assemble. The key to fixing the bracket is traction and pressure positioning. The traction and pressure positioning mechanism needs to be able to maintain the central axis force lines of the two bone sections on the same axis through the positioning rod fixed on it. Otherwise, the process of bone transportation and bone extension will cause the extension route to shift, ultimately leading to poor bone growth force line and failure of deformity correction. Utility Model Content
[0004] The purpose of the utility model is to provide a traction positioning fixing mechanism, which can simply and efficiently adjust the direction of the positioning rod and can accurately and stably support the bones to be corrected.
[0005] The technical solution adopted by the utility model to achieve the above-mentioned purpose is:
[0006] A fixing mechanism for traction positioning comprises a track, a plurality of positioning rods, a first positioning rod seat group and a second positioning rod seat group, wherein the first positioning rod seat group and the second positioning rod seat group are both installed on the track and can slide along the track, a fixing bolt is arranged between the first positioning rod seat group and the second positioning rod seat group and the track, and the fixing bolt can fix the first positioning rod seat group and the second positioning rod seat group on the track, and the first positioning rod seat group and the second positioning rod seat group are provided with a plurality of mounting holes for mounting and fixing the positioning rods.
[0007] The first positioning rod seat group includes a first positioning rod seat and a first fixing seat, the first positioning rod seat includes a first upper positioning rod seat, a first lower positioning rod seat and a first fastening bolt, the first upper positioning rod seat is installed on the first lower positioning rod seat, fixed by the first fastening bolt, and the distance between the first upper positioning rod seat and the first lower positioning rod seat is adjusted, and the mounting hole is arranged at the connection between the first upper positioning rod seat and the first lower positioning rod seat; a ball head is also arranged on the side end portion of the first lower positioning rod seat, and a fixing hole is processed on the ball head; the first fixing seat includes a fixed end and a movable end, the bottom of the fixed end is connected to the track by a fixing bolt, the movable end is connected to the fixed end by a second fastening bolt, a circular cavity matching the ball head is processed between the fixed end and the movable end, and the aperture of the fixing hole on the ball head is larger than the diameter of the second fastening bolt.
[0008] The second positioning rod seat group includes a second positioning rod seat and a second fixed seat, the second positioning rod seat includes a second upper positioning rod seat, a second lower positioning rod seat and a third fastening bolt, the second upper positioning rod seat is installed on the second lower positioning rod seat, fixed by the third fastening bolt and the distance between the second upper positioning rod seat and the second lower positioning rod seat can be adjusted, the mounting hole is arranged at the connection between the second upper positioning rod seat and the second lower positioning rod seat; the side end of the second lower positioning rod seat is arranged with an internal threaded hole; the bottom end of the second fixed seat is connected to the track through a fixing bolt, and the side end of the second fixed seat is connected to the side end of the second lower positioning rod seat through an adjusting bolt, and the adjusting bolt cooperates with the internal threaded hole on the side end of the second lower positioning rod seat to adjust the position of the second positioning rod seat.
[0009] The beneficial effect of the utility model is that the traction positioning mechanism for the fixed bracket can simply and conveniently adjust the position and angle of each positioning rod on the positioning rod seat group through the track and the positioning rod seat group, so as to quickly and accurately realize the traction positioning of the injured target. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 and Figure 2 It is a three-dimensional structural schematic diagram of the utility model;
[0011] Figure 3 It is the front view of the utility model;
[0012] Figure 4 yes Figure 3 Sectional view of AA in the middle;
[0013] In the figure, 1, track; 2, positioning rod; 3, first positioning rod seat group; 31, first positioning rod seat; 311, first upper positioning rod seat; 312, first lower positioning rod seat; 313, first fastening bolt; 314, ball head; 315, fixing hole; 32, first fixing seat; 321, fixed end; 322, movable end; 323, second fastening bolt; 4, second positioning rod seat group; 41, second positioning rod seat; 42, second fixing seat; 43, adjusting bolt; 411, second upper positioning rod seat; 412, second lower positioning rod seat; 413, third fastening bolt; 414, internal threaded hole; 5, fixing bolt; 51, first fixing bolt; 52, second fixing bolt; 53, third fixing bolt; 6, mounting hole. DETAILED DESCRIPTION
[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0015] A fixing mechanism for traction positioning, such as Figure 1As shown, it includes a track 1, a plurality of positioning rods 2, a first positioning rod seat group 3 and a second positioning rod seat group 4. The first positioning rod seat group 3 and the second positioning rod seat group 4 are both installed on the track 1 and can slide along the track 1. A fixing bolt 5 is provided between the first positioning rod seat group 3, the second positioning rod seat group 4 and the track. The fixing bolt 5 can fix the first positioning rod seat group 3 and the second positioning rod seat group 4 on the track 1. The first positioning rod seat group 3 and the second positioning rod seat group 4 are provided with a plurality of mounting holes 6 for mounting and fixing the positioning rods 2.
[0016] like Figure 2 , Figure 3 , Figure 4 As shown, the first positioning rod seat group 3 includes a first positioning rod seat 31 and a first fixed seat 32. The first positioning rod seat 31 includes a first upper positioning rod seat 311, a first lower positioning rod seat 312 and a first fastening bolt 313. The first upper positioning rod seat 311 is installed on the first lower positioning rod seat 312 and is fixed by the first fastening bolt 313. The mounting hole 6 is set at the connection between the first upper positioning rod seat 311 and the first lower positioning rod seat 312. By adjusting the first fastening bolt 313, the distance between the first upper positioning rod seat 311 and the first lower positioning rod seat 312 can be adjusted to adjust the aperture of the mounting hole 6, thereby adjusting the relative position of the fixed positioning rod 2 in the mounting hole 6; the first lower positioning rod seat 312 A ball head 314 is also provided at the side end portion, and a fixing hole 315 is processed on the ball head 314; the first fixed seat 32 includes a fixed end 321, a movable end 322 and a second fastening bolt 323, the bottom of the fixed end 321 is connected to the track 1 through the first fixing bolt 51, and the movable end 322 is connected to the fixed end 321 through the second fastening bolt 323, and a circular cavity matching the ball head 314 is processed between the fixed end 321 and the movable end 322, and the aperture of the fixing hole 315 on the ball head 314 is larger than the diameter of the second fastening bolt 323, so that the relative position of the first fixed seat 32 and the first positioning rod seat 31 is adjusted through the gap between the fixing hole 315 of the ball head 314 and the second fastening bolt 323.
[0017] The second positioning rod seat group 4 includes a second positioning rod seat 41, a second fixing seat 42 and an adjusting bolt 43. The second positioning rod seat 41 includes a second upper positioning rod seat 411, a second lower positioning rod seat 412 and a third fastening bolt 413. The second upper positioning rod seat 411 is installed on the second lower positioning rod seat 412. The mounting hole 6 is set at the connection between the second upper positioning rod seat 411 and the second lower positioning rod seat 412. The second upper positioning rod seat 411 and the second lower positioning rod seat 412 are fixed by the third fastening bolt 413 and the second upper positioning rod seat 411 and the second lower positioning rod seat 412 can be adjusted. The distance can be adjusted to adjust the size of the mounting hole 6 to achieve the adjustment and positioning of the positioning rod 2; the lower part of the second lower positioning rod seat 412 is connected and fixed to the track 1 through the third fixing bolt 53, and the side end of the second lower positioning rod seat 412 is provided with an internal threaded hole 414; the bottom end of the second fixed seat 42 is connected to the track 1 through the second fixing bolt 52, and the side end of the second fixed seat 412 is connected to the side end of the second lower positioning rod seat 412 through the adjusting bolt 43, and the adjusting bolt 43 is threadedly matched with the internal threaded hole 414 at the side end of the second lower positioning rod seat 412, so as to adjust the position of the second positioning rod seat 41.
[0018] When in use, first, according to the damage of the target of traction positioning, the number of positioning rods is selected, and the corresponding number of positioning rods 2 are respectively installed in the installation holes 6 of the first positioning rod seat 31 and the second positioning rod seat 41 based on the basic principle of small trauma and stable and firm. The first fastening bolt 313 and the third fastening bolt 413 are adjusted to fix them. Then, the first positioning seat group 3 and the second positioning seat group 4 are connected and fixed on the track (1) through the first fixing bolt 51 and the second fixing bolt 52. Then, the target of traction positioning is connected and fixed with the positioning rod 2, and then the angle position of the first positioning rod seat 31 is adjusted within the movable range of the ball head 315 of the first positioning rod seat 31 as needed. After the position is determined, the ball head 315 and the first fixing seat 32 are fixed by the second fastening bolt 323. After that, the position of the second positioning rod seat 41 and the first positioning rod seat 31 is slightly adjusted by the adjusting bolt 43. After the traction pressure positioning requirement is achieved, the third fixing bolt 53 is fixed.
[0019] The above description is only a preferred embodiment of the present invention, which cannot be used to limit the scope of rights of the present invention. Equivalent changes made according to the claims of the present invention still fall within the scope of protection covered by the present invention.
Claims
1. A fixing mechanism for traction positioning, characterized in that: The invention comprises a track (1), a plurality of positioning rods (2), a first positioning rod seat group (3) and a second positioning rod seat group (4), wherein the first positioning rod seat group (3) and the second positioning rod seat group (4) are both mounted on the track (1) and can slide along the track (1), and fixing bolts (5) are respectively arranged between the first positioning rod seat group (3) and the second positioning rod seat group (4) and the track (1), and the fixing bolts (5) can fix the first positioning rod seat group (3) and the second positioning rod seat group (4) on the track (1), respectively. A plurality of mounting holes (6) for mounting the positioning rods are provided on the positioning rod seat group (3) and the second positioning rod seat group (4); the first positioning rod seat group (3) comprises a first positioning rod seat (31) and a first fixing seat (32); the first positioning rod seat (31) comprises a first upper positioning rod seat (311), a first lower positioning rod seat (312) and a first fastening bolt (313); the first upper positioning rod seat (311) is mounted on the first lower positioning rod seat (312); the mounting holes (6) are provided on the first The connection between the upper positioning rod seat (311) and the first lower positioning rod seat (312); the first upper positioning rod seat (311) and the first lower positioning rod seat (312) are fixed by the first fastening bolt (313) and the distance between the first upper positioning rod seat (311) and the first lower positioning rod seat (312) can be adjusted; the first fixing seat (32) includes a fixed end (321) and a movable end (322); the bottom of the fixed end (321) is connected to the track (1) through a first fixing bolt (51), and the movable end (32 2) connected to the fixed end (321) through a second fastening bolt (323); a ball head (314) is also provided at the side end of the first lower positioning rod seat (312), and a fixing hole (315) is processed on the ball head (314); a circular cavity matching the size of the ball head (314) is processed between the fixed end (321) and the movable end (322) of the first fixing seat (32), and the diameter of the fixing hole (315) on the ball head (314) is larger than the diameter of the second fastening bolt (323).
2. A traction positioning fixing mechanism according to claim 1, characterized in that: The second positioning rod seat group (4) comprises a second positioning rod seat (41) and a second fixing seat (42); the second positioning rod seat (41) comprises a second upper positioning rod seat (411), a second lower positioning rod seat (412) and a third fastening bolt (413); the second upper positioning rod seat (411) is mounted on the second lower positioning rod seat (412); the mounting hole (6) is arranged at the connection between the second upper positioning rod seat (411) and the second lower positioning rod seat (412); the distance between the second upper positioning rod seat (411) and the second lower positioning rod seat (412) is fixed by the third fastening bolt (413) and can be adjusted; the lower part of the second lower positioning rod seat (412) is connected and fixed to the track (1) via a third fixing bolt (53); the bottom end of the second fixing seat (42) is connected and fixed to the track (1) via a second fixing bolt (52); the side end of the second fixing seat (42) is connected to the side end of the second lower positioning rod seat (412) via an adjusting bolt (43).
3. A traction positioning fixing mechanism according to claim 2, characterized in that: An internal threaded hole (414) is processed at the side end of the second lower positioning rod seat (412); the internal threaded hole (414) matches the adjusting bolt (43) and can adjust the position of the second positioning rod seat (41).