External fixing device for hand bone

Abstract

The utility model discloses a hand bone external use fixing device which comprises two bottom plates, an adjusting fixing structure is arranged at the upper ends of the two bottom plates, and a positioning structure is arranged between the two bottom plates. The adjusting and fixing structure comprises two supporting pillows, four adjusting grooves, four partition plates and eight fixing assemblies, according to the adjusting and fixing structure and the positioning structure, when the hand bone of a patient is externally fixed, the two arranged supporting pillows can be attached to the arm of the patient, and therefore the hand bone of the patient can be fixed through the adjusting and fixing structure and the positioning structure; according to different use requirements, the distance between the two supporting pillows can be adjusted, meanwhile, a lead screw adjusting mode is adopted, adjustment can be conducted according to different metal spicule positioning requirements, and the overall fixing effect of the metal spicules is guaranteed through the self-locking capacity of the lead screw.

Description

Technical Field

[0001] The utility model relates to the technical field of orthopedic fixation, in particular to a hand bone external fixation device. Background Art

[0002] In orthopedic surgery, fractures usually require the use of external fixators to maintain a relatively fixed shape of the broken bones, so that the bones can be properly joined and healthy bone healing can be achieved.

[0003] Current external fixation devices generally use bolts and nuts to fix the overall range and spacing of the external fixation bracket. After long-term use, the connection position is prone to loosening, resulting in poor overall fixation effect of the metal bone needle. In addition, the current external fixation bracket is not equipped with flexible support as a whole, which cannot keep the affected area comfortable. In view of this, for the above problems, there may already be technical means to solve them in the existing technology, but this case intends to provide an alternative or replacement technical solution. Utility Model Content

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a hand bone external fixation device, comprising two bottom plates, the upper ends of the two bottom plates are provided with an adjustment and fixing structure, and a positioning structure is provided between the two bottom plates;

[0005] The adjustment and fixing structure includes: two support pillows, four adjustment slots, four partitions and eight fixing components;

[0006] The two support pillows are respectively installed on the upper ends of the two base plates, the four adjustment slots are respectively installed on both sides of the upper ends of the two base plates, the four partitions are respectively fixedly installed at the centers of the four adjustment slots, and the eight fixed components are respectively movably embedded in the four adjustment slots.

[0007] Preferably, the eight fixing components each include: a screw rod, a moving block, a positioning plate and a positioning hole;

[0008] The screw rod is movably embedded in the adjustment groove, and one end is movably connected to one side of the partition. The moving block is movably embedded in the adjustment groove and movably sleeved on the upper end of the screw rod. The positioning plate is fixedly installed on the upper end of the moving block, and the positioning hole is opened at the upper end of the positioning plate.

[0009] Preferably, the positioning structure comprises: a connecting shaft, two arc-shaped positioning frames, two arc-shaped mounting plates, two positioning screws and two positioning nuts;

[0010] The connecting shaft is movably embedded in one end of the two base plates, the two arc-shaped positioning frames are respectively installed on both sides of the upper end of one of the base plates, the two arc-shaped mounting plates are respectively installed on both sides of the upper end of the other base plate, the two positioning screws are respectively installed on one side of the two arc-shaped mounting plates, and one end is movably inserted into the two arc-shaped positioning frames, and the two positioning nuts are movably sleeved on the upper ends of the two positioning screws.

[0011] Preferably, an operating nut is provided at one end of the screw rod.

[0012] Preferably, a support groove is provided at the center of the support pillow.

[0013] Beneficial effects

[0014] The present invention provides a device for external fixation of hand bones, which has the following beneficial effects: the adjustable fixing structure and positioning structure adopted in this case can fit the patient's arm through the two support pillows when externally fixating the patient's hand bones, and the distance between the two support pillows can be adjusted according to different usage requirements. At the same time, the adjustment method of the screw rod is adopted, which can be adjusted according to different metal bone needle positioning requirements, and the self-locking ability of the screw rod can ensure the overall fixation effect of the metal bone needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main three-dimensional structure of a hand bone external fixation device described in the present invention.

[0016] Figure 2 This is a schematic diagram of the adjustment state structure of the hand bone external fixation device described in the present invention.

[0017] Figure 3 This is an enlarged structural diagram of position "A" of the hand bone external fixation device described in the present invention.

[0018] In the figure: 1. Base plate, 2. Support pillow, 3. Adjustment slot, 4. Partition, 5. Screw, 6. Moving block, 7. Positioning plate, 8. Positioning hole, 9. Connecting shaft, 10. Arc-shaped positioning frame, 11. Arc-shaped mounting plate, 12. Positioning screw, 13. Positioning nut, 14. Operating nut, 15. Support groove. DETAILED DESCRIPTION

[0019] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0020] Example: See Figure 1-3, a hand bone external fixation device, comprising two base plates 1, the upper ends of the two base plates 1 are provided with an adjustment and fixing structure, and a positioning structure is provided between the two base plates 1;

[0021] The adjustment and fixing structure includes: two support pillows 2, four adjustment slots 3, four partitions 4 and eight fixing components;

[0022] The two support pillows 2 are respectively installed on the upper ends of the two base plates 1, the four adjustment slots 3 are respectively installed on both sides of the upper ends of the two base plates 1, the four partitions 4 are respectively fixedly installed at the centers of the four adjustment slots 3, and the eight fixed components are respectively movably embedded in the four adjustment slots 3.

[0023] When in use, the staff first takes out the device and places it in the designated position. According to the hand bone fixation requirements at different positions, the two base plates 1 are bent into different angles and fixed through the positioning structure. The metal bone needles are then fixed on both sides of the affected area. Then, according to the fixed position of the metal bone needles, the eight fixing components in the two adjustment slots 3 are adjusted. The two ends of the metal bone needles are fixed through the eight fixing components, and the patient's arms are supported by the two support pillows 2 to ensure the comfort of the affected area.

[0024] In the specific implementation process, the eight fixing components include: a screw rod 5, a moving block 6, a positioning plate 7 and a positioning hole 8;

[0025] The screw rod 5 is movably embedded in the adjusting groove 3, and one end is movably connected to one side of the partition 4. The moving block 6 is movably embedded in the adjusting groove 3 and movably sleeved on the upper end of the screw rod 5. The positioning plate 7 is fixedly installed on the upper end of the moving block 6, and the positioning hole 8 is opened at the upper end of the positioning plate 7.

[0026] When adjusting the positioning plate 7 according to the position of the metal bone needle, by twisting the screw rod 5 in the adjustment slot 3, the overall position of the moving block 6 and the positioning plate 7 is changed with the cooperation of the screw rod 5 and the internal thread in the moving block 6 until the positioning hole 8 corresponds to one end of the metal bone needle.

[0027] In the specific implementation process, the positioning structure includes: a connecting shaft 9, two arc-shaped positioning frames 10, two arc-shaped mounting plates 11, two positioning screws 12 and two positioning nuts 13;

[0028] The connecting shaft 9 is movably embedded in one end of the two base plates 1, the two arc-shaped positioning frames 10 are respectively installed on both sides of the upper end of one of the base plates 1, the two arc-shaped mounting plates 11 are respectively installed on both sides of the upper end of the other base plate 1, the two positioning screws 12 are respectively installed on one side of the two arc-shaped mounting plates 11, and one end is movably inserted into the two arc-shaped positioning frames 10, and the two positioning nuts 13 are respectively movably sleeved on the upper ends of the two positioning screws 12.

[0029] When adjusting the angle of the two base plates 1, loosen the two positioning nuts 13 at the upper ends of the two positioning screws 12, so that one end of the positioning nut 13 is separated from one side of the arc-shaped positioning frame 10, and the angle of the two base plates 1 can be adjusted under the action of the connecting shaft 9. During the adjustment process, the positioning screw 12 located on one side of the arc-shaped mounting plate 11 moves in the arc-shaped positioning frame 10. When adjusted to the specified angle, tighten the positioning nut 13 at the upper end of the positioning screw 12, so that one end of the positioning nut 13 is tightly fitted with one side of the arc-shaped positioning frame 10, thereby fixing the angle of the two base plates 1.

[0030] In a specific implementation process, an operating nut 14 is provided at one end of the screw rod 5 .

[0031] During the specific implementation process, a support groove 15 is provided at the center of the support pillow 2 .

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hand bone external fixation device, comprising two base plates (1), characterized in that: An adjusting and fixing structure is provided at the upper ends of the two bottom plates (1), and a positioning structure is provided between the two bottom plates (1); The adjustment and fixing structure comprises: two support pillows (2), four adjustment slots (3), four partitions (4) and eight fixing components; The two support pillows (2) are respectively installed on the upper ends of the two base plates (1); the four adjustment slots (3) are respectively installed on both sides of the upper ends of the two base plates (1); the four partitions (4) are respectively fixedly installed at the centers of the four adjustment slots (3); and the eight fixing components are respectively movably embedded in the four adjustment slots (3).

2. The hand bone external fixation device according to claim 1, characterized in that: The eight fixing components each include: a screw rod (5), a moving block (6), a positioning plate (7) and a positioning hole (8); The screw rod (5) is movably embedded in the adjustment groove (3), and one end is movably connected to one side of the partition (4). The moving block (6) is movably embedded in the adjustment groove (3) and movably sleeved on the upper end of the screw rod (5). The positioning plate (7) is fixedly installed on the upper end of the moving block (6), and the positioning hole (8) is opened at the upper end of the positioning plate (7).

3. The hand bone external fixation device according to claim 1, characterized in that: The positioning structure comprises: a connecting shaft (9), two arc-shaped positioning frames (10), two arc-shaped mounting plates (11), two positioning screws (12) and two positioning nuts (13); The connecting shaft (9) is movably embedded in one end of the two base plates (1), the two arc-shaped positioning frames (10) are respectively installed on both sides of the upper end of one of the base plates (1), the two arc-shaped mounting plates (11) are respectively installed on both sides of the upper end of the other base plate (1), the two positioning screws (12) are respectively installed on one side of the two arc-shaped mounting plates (11), and one end of each of the two positioning screws (12) is movably inserted into the two arc-shaped positioning frames (10), and the two positioning nuts (13) are respectively movably sleeved on the upper ends of the two positioning screws (12).

4. The hand bone external fixation device according to claim 2, characterized in that: An operating nut (14) is provided at one end of the screw rod (5).

5. The hand bone external fixation device according to claim 1, characterized in that: A support groove (15) is provided at the center of the support pillow (2).

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