Anti-displacement orthopedic traction frame

Abstract

The utility model discloses an anti-displacement orthopaedic traction frame, which belongs to the technical field of orthopaedic traction frames and comprises a traction bow, connecting columns fixedly connected to two ends of the traction bow and traction needles penetrating through internal through holes of the connecting columns. A threaded through hole communicating with the penetrating hole is formed in the side wall of the connecting column, a pushing screw shaft is in threaded connection with the interior of the threaded through hole, one end of the pushing screw shaft is rotationally connected with a sliding block, and one end of the sliding block is fixedly connected with a clamping piece clamped with the annular notch. By arranging the pushing screw shaft, the sliding block and the clamping piece and forming the annular notch in the surface of the traction needle, the pushing screw shaft is rotated to drive the sliding block to move, and then the clamping piece is driven to move, so that the clamping piece is clamped with the annular notch, and the limiting effect of the pushing screw shaft on the traction needle can be enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of orthopedic traction frames, in particular to an anti-displacement orthopedic traction frame. Background Art

[0002] The orthopedic traction frame is used for fracture reduction of patients. The traction needle penetrates the patient's tissue, and the traction bow is placed at both ends of the traction needle. The traction needle penetrates the connecting columns at both ends of the traction bow, and then the traction needle is limited by the knob bolt.

[0003] However, the surface of the existing traction needle is smooth, and the bolts clamp and limit the traction needle, which is not stable enough. The traction needle often deviates and slides. The deviation and sliding of the traction needle will compress the skin at the puncture hole and increase the risk of necrosis of the compressed skin. Therefore, an anti-displacement orthopedic traction frame is proposed to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the surface of the existing traction needle in the prior art is smoothly set, the bolts clamp the traction needle and limit it, which is not stable enough, and the traction needle often deviates and slides. The deviated and slipped traction needle will compress the skin at the puncture hole and increase the risk of necrosis of the compressed skin. An anti-displacement orthopedic traction frame is proposed to solve the problem that the surface of the existing traction needle in the prior art is smoothly set, the bolts clamp the traction needle and limit it, which is not stable enough, and the traction needle often deviates and slides. The deviated and slipped traction needle will compress the skin at the puncture hole and increase the risk of necrosis of the compressed skin.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An anti-displacement orthopedic traction frame comprises a traction bow, connecting columns fixedly connected to both ends of the traction bow, and a traction needle penetrating through a hole inside the connecting column, wherein a surface of the traction needle is provided with a plurality of equidistantly arranged annular notches, a side wall of the connecting column is provided with a threaded through hole connected to the through hole, a pushing screw shaft is threadedly connected to the threaded through hole, one end of the pushing screw shaft is rotatably connected to a sliding block, and one end of the sliding block is fixedly connected to a clamping piece that engages with the annular notch.

[0007] Preferably, a limiting sliding block is fixedly connected to the surface of the sliding block, and an inner wall of the threaded through hole is provided with a limiting sliding groove slidably connected to the limiting sliding block.

[0008] Preferably, an internal thread groove is formed on the surface of the connecting column, and a threaded sleeve is connected to the internal thread of the internal thread groove.

[0009] Preferably, one end of the threaded sleeve is fixedly connected with a fixing clip, the inner thread of the threaded sleeve is connected with a fastening screw shaft, and the surface of the fastening screw shaft is sleeved with a limiting plate.

[0010] Preferably, a movable clamp is fixedly connected to the surface of the fastening screw shaft, and the limiting piece is engaged with the annular notch.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model is provided with a pushing screw shaft, a sliding block, a snap-fitting piece, and an annular recess on the surface of the traction needle. The sliding block is driven to move by rotating the pushing screw shaft, and then the snap-fitting piece is driven to move, so that the snap-fitting piece is engaged with the annular recess, thereby enhancing the limiting effect of the pushing screw shaft on the traction needle.

[0013] 2. The utility model is provided with a threaded sleeve, a fastening screw shaft and a limit plate. The limit plate is engaged with the annular recess on the surface of the traction needle. The movable clip is driven to move by rotating the fastening screw shaft, and the clamping and fixing function of the limit plate is realized in cooperation with the fixed clip, thereby further enhancing the limiting effect of the traction needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural schematic diagram of an anti-displacement orthopedic traction frame proposed by the utility model;

[0015] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0016] Figure 3 This is a structural schematic diagram of an anti-displacement orthopedic traction frame proposed by the utility model;

[0017] Figure 4 This is a schematic diagram of the side section structure of a connecting column in an anti-displacement orthopedic traction frame proposed by the utility model;

[0018] Figure 5 for Figure 4 Enlarged structural diagram at B in the middle.

[0019] In the figure: 1, traction needle; 101, annular notch; 2, traction bow; 3, connecting column; 301, internal thread groove; 302, threaded through hole; 4, moving clip; 5, fastening screw shaft; 6, limiting plate; 7, threaded sleeve; 8, fixing clip; 9, pushing screw shaft; 10, sliding block; 11, snap-in plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described 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, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] Reference Figure 1-5, an anti-displacement orthopedic traction frame, comprising a traction bow 2, a connecting column 3 fixedly connected to both ends of the traction bow 2, and a traction needle 1 penetrating through a hole in the connecting column 3, a surface of the traction needle 1 is provided with a plurality of equally spaced annular notches 101, a side wall of the connecting column 3 is provided with a threaded through hole 302 connected to the through hole, a pushing screw shaft 9 is threadedly connected to the inner thread of the threaded through hole 302, one end of the pushing screw shaft 9 is rotatably connected to a sliding block 10, and one end of the sliding block 10 is fixedly connected to a clamping piece 11 engaged with the annular notch 101;

[0022] It should be noted that the sliding block 10 is driven to move by rotating the screw shaft 9 , and then the engaging piece 11 is driven to move, so that the engaging piece 11 engages with the annular recess 101 , which can enhance the limiting effect of the screw shaft 9 on the traction needle 1 .

[0023] Furthermore, a limit slider is fixedly connected to the surface of the sliding block 10, and a limit sliding groove slidably connected to the limit slider is provided on the inner wall of the threaded through hole 302;

[0024] It should be noted that the limiting sliding block cooperates with the limiting sliding groove to realize the limiting function of the sliding block 10 , thereby preventing the sliding block 10 and the clamping piece 11 from rotating along with the pushing screw shaft 9 .

[0025] Further, the surface of the connecting column 3 is provided with an internal thread groove 301, the internal thread of the internal thread groove 301 is connected with a threaded sleeve 7, one end of the threaded sleeve 7 is fixedly connected with a fixed clip 8, the internal thread of the threaded sleeve 7 is connected with a fastening screw shaft 5, the surface of the fastening screw shaft 5 is sleeved with a limiting piece 6, the surface of the fastening screw shaft 5 is fixedly connected with a movable clip 4, and the limiting piece 6 is engaged with the annular notch 101;

[0026] It should be noted that the threaded sleeve 7 cooperates with the internal thread groove 301 to adjust the position of the limiting piece 6 so that the limiting piece 6 is engaged with the annular recess 101 .

[0027] The fastening screw shaft 5 is threadedly connected to the threaded sleeve 7, and cooperates with the movable clamping piece 4 and the fixed clamping piece 8 to realize the clamping and limiting function of the limiting piece 6.

[0028] When the utility model is used, after the traction needle 1 passes through the through hole inside the connecting column 3, the screw shaft 9 is rotated and pushed, and the sliding block 10 is driven to move by pushing the screw shaft 9, and then the clamping piece 11 is driven to move, so that the clamping piece 11 is engaged with the annular notch 101, which can enhance the limiting effect of the pushing screw shaft 9 on the traction needle 1;

[0029] Then, the threaded sleeve 7 is rotated to adjust the position of the limit plate 6 so that the limit plate 6 and the annular recess 101 can be correspondingly engaged. Then, the fastening screw shaft 5 is rotated to drive the movable clamp 4 to move, and cooperate with the fixed clamp 8 to realize the clamping and fixing function of the limit plate 6, thereby ensuring the stability of the engagement between the limit plate 6 and the annular recess 101, further enhancing the limiting function of the traction needle 1, and thus avoiding the traction needle 1 from deflecting and sliding.

[0030] 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. An anti-displacement orthopedic traction frame, comprising a traction bow (2), connecting posts (3) fixedly connected to both ends of the traction bow (2), and a traction needle (1) penetrating through a hole in the connecting post (3), characterized in that: The surface of the traction needle (1) is provided with a plurality of equidistantly arranged annular recesses (101), and the side wall of the connecting column (3) is provided with a threaded through hole (302) connected to the through hole, and the threaded through hole (302) is internally threadedly connected to a pushing screw shaft (9), and one end of the pushing screw shaft (9) is rotatably connected to a sliding block (10), and one end of the sliding block (10) is fixedly connected to a snap-in piece (11) that engages with the annular recess (101).

2. The anti-displacement orthopedic traction frame according to claim 1, characterized in that: A limiting sliding block is fixedly connected to the surface of the sliding block (10), and a limiting sliding groove slidably connected to the limiting sliding block is provided on the inner wall of the threaded through hole (302).

3. The anti-displacement orthopedic traction frame according to claim 1, characterized in that: An internal thread groove (301) is provided on the surface of the connecting column (3), and a threaded sleeve (7) is internally threadedly connected to the internal thread groove (301).

4. The anti-displacement orthopedic traction frame according to claim 3, characterized in that: One end of the threaded sleeve (7) is fixedly connected to a fixing clip (8), the inner thread of the threaded sleeve (7) is connected to a fastening screw shaft (5), and a limiting plate (6) is sleeved on the surface of the fastening screw shaft (5).

5. The anti-displacement orthopedic traction frame according to claim 4, characterized in that: A movable clamp (4) is fixedly connected to the surface of the fastening screw shaft (5), and the limiting plate (6) and the annular recess (101) are mutually engaged.

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