Clinical reduction fixing device based on orthopedics department

Abstract

The invention discloses a reduction fixing device based on orthopedic clinical use, relates to the technical field of orthopedic clinical treatment, and provides the following scheme that the reduction fixing device comprises a first fixing ring, a second fixing ring and a third fixing ring, and further comprises a distance adjusting mechanism used for accurately adjusting the distance among the three fixing rings according to the limb length or treatment requirements of a patient; and the skeleton reduction mechanism is used for aiming at fracture or dislocation parts of the patient. Through cooperation of the threaded sleeve and the threaded rod, stepless adjustment of the distance between the fixing rings is achieved, the device is suitable for limb lengths and parts of different patients, the bone reduction mechanism can slide along the extension rod and be locked, the angle and position of the reduction needle can be flexibly adjusted, the traction requirements of different fracture types are met, and the traction effect is good. The fixing mechanism is matched with the perimeter of the limb by adjusting the number of the clamping blocks, the device is prevented from loosening by combining double locking of a trapezoidal sliding block and a bolt, meanwhile, two to three fixing rings are supported for combined use, and various orthopedic clinical scenes from short limbs to long limbs can be covered.

Description

Technical Field

[0001] This invention relates to the field of orthopedic clinical treatment technology, and in particular to a reduction and fixation device for clinical orthopedic use. Background Technology

[0002] In orthopedic clinical treatment, bone reduction and fixation are crucial steps in the treatment of fractures, joint dislocations, and other conditions. However, existing reduction and fixation devices often have the following shortcomings:

[0003] Limited spacing adjustment: The spacing of the fixed rings in traditional devices is mostly fixed or has a limited range of adjustment, making it difficult to adapt to the limb lengths of different patients (such as patients with different limb segments or different body types);

[0004] Insufficient reduction accuracy: The traction direction and force adjustment of the bone reduction mechanism are not flexible, and it is impossible to achieve precise reduction for different fracture sites (such as the bone shaft and joint ends).

[0005] Poor fixation stability: The fixation mechanism does not fit the limb well enough, and the device is prone to loosening due to patient movement, which affects the reduction effect;

[0006] Narrow applicability: A single device is often only applicable to specific areas (such as the forearm or lower leg), which is not versatile and increases the cost of clinical equipment;

[0007] Therefore, this invention proposes a flexible, reliable, and widely applicable orthopedic repositioning and fixation device to solve the above-mentioned problems. Summary of the Invention

[0008] The present invention proposes a reduction and fixation device for clinical use in orthopedics, which solves the above-mentioned shortcomings of the prior art.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A reduction and fixation device for clinical orthopedic use includes a first fixation ring, a second fixation ring, and a third fixation ring, and further includes:

[0011] A spacing adjustment mechanism is located between the first fixed ring and the second fixed ring, and between the second fixed ring and the third fixed ring, for adjusting the spacing between the first fixed ring, the second fixed ring, and the third fixed ring;

[0012] The bone repositioning mechanism, located on the spacing adjustment mechanism, is used to reposition and traction the patient's bones relative to the first, second, and third fixing rings.

[0013] A fixing mechanism is located on one side of the first fixing ring, the second fixing ring, and the third fixing ring, and is used to fix and limit the first fixing ring, the second fixing ring, and the third fixing ring.

[0014] Furthermore, the spacing adjustment mechanism includes a plurality of first movable blocks that are slidably connected to the first fixed ring. A first extension rod is fixedly connected to the bottom of the plurality of first movable blocks. A first threaded rod is fixedly connected to the bottom of the first extension rod. A plurality of second movable blocks are slidably connected to the second fixed ring. A first threaded sleeve is rotatably connected to the top of the second movable blocks corresponding to the first threaded rod. The first threaded rod is threadedly fitted inside the first threaded sleeve.

[0015] Furthermore, a second extension rod is fixedly connected to the bottom of the second movable block, and a second threaded rod is fixedly connected to the bottom of the second extension rod. A third movable block is slidably connected to the third fixed ring. A second threaded sleeve is rotatably connected to the top of the third movable block corresponding to the second threaded rod. The second threaded rod is threaded inside the second threaded sleeve. An operating nut is fixedly connected to the bottom of the second threaded sleeve and the first threaded sleeve, respectively.

[0016] Furthermore, the first fixed ring, the second fixed ring and the third fixed ring are respectively provided with limiting grooves, and the interiors of the first moving block, the second moving block and the third moving block are respectively fixedly connected to the limiting grooves, and the limiting sliders are movably sleeved inside the limiting grooves.

[0017] Furthermore, the bone repositioning mechanism includes a connecting plate. The first and second extension rods have two sets of moving slots. The connecting plate is movably fitted inside one set of moving slots. A fastening bolt is fixedly connected to the connecting plate to fix and limit the connection plate to the first and second extension rods. The fastening bolt is movably fitted inside the other set of moving slots. Mounting holes are respectively opened on both sides of the connecting plate. A connecting rod is fixedly connected inside the mounting hole by a fastening nut. A medical bone repositioning needle is fixedly connected to the inner side of the connecting rod.

[0018] Furthermore, the fixing mechanism includes a first locking plate, a connecting plate fixedly connected to one side of the first locking plate, and expansion / reduction openings respectively on the first fixing ring, the second fixing ring and the third fixing ring. Locking blocks are respectively engaged in the expansion / reduction openings, and fixing plates are fixedly connected to the upper and lower sides of the locking blocks respectively. First pin holes are respectively opened on the two fixing plates, and pin grooves are respectively opened on both sides of the locking blocks. The locking blocks are engaged with the expansion / reduction openings through the pin grooves.

[0019] Furthermore, the top two sides of the card block are respectively provided with second pin holes, and the internal threads of the second pin holes are connected to first pin bolts, which are used to lock the card block in position with the first fixing ring, the second fixing ring and the third fixing ring respectively.

[0020] Furthermore, a trapezoidal slider is fixedly connected to the inner side of the connecting plate, and a trapezoidal block is slidably connected to the trapezoidal slider. A threaded hole is symmetrically opened on one side of the trapezoidal block, and a limit bolt is connected to the internal thread of the threaded hole for limiting and fixing the trapezoidal block and the trapezoidal slider.

[0021] Furthermore, a second card plate is fixedly connected to one side of the trapezoidal card block. The second card plate has a third pin hole. The second card plate engages with the corresponding card block. The third pin hole and the first pin hole are respectively threaded with second pin bolts.

[0022] Furthermore, the first fixed ring, the second fixed ring, and the third fixed ring are respectively provided with a plurality of first through holes, and the first moving block, the second moving block, and the third moving block are respectively provided with second through holes. Long bolts are threaded inside the first through holes and the second through holes for limiting and fixing the first fixed ring, the second fixed ring, and the third fixed ring to the first moving block, the second moving block, and the third moving block, respectively.

[0023] Compared with existing technologies, the beneficial effects of this invention are:

[0024] This invention achieves stepless adjustment of the spacing between the fixing rings through the cooperation of the threaded sleeve and the threaded rod, adapting to different limb lengths and locations (such as limbs, spine, etc.) of patients. The bone repositioning mechanism can slide and lock along the extension rod, and the angle and position of the repositioning pin can be flexibly adjusted to meet the traction needs of different fracture types. The fixation mechanism adapts to the limb circumference by adjusting the number of locking blocks, and the double locking of the trapezoidal slider and the pin bolt prevents the device from loosening. It also supports the combined use of 2 to 3 fixing rings, which can cover a variety of orthopedic clinical scenarios from short limbs (such as phalanges) to long limbs (such as femurs). Attached Figure Description

[0025] Figure 1 This is a top-view three-dimensional structural diagram of a reduction and fixation device for clinical use in orthopedics proposed in this invention;

[0026] Figure 2 This is a schematic diagram of the overall bottom-view three-dimensional structure of a reduction and fixation device for clinical orthopedic use proposed in this invention;

[0027] Figure 3 This is a top-view three-dimensional structural diagram of the third fixing ring, the third moving block, and the second threaded sleeve of a reduction and fixation device for clinical orthopedic use proposed in this invention.

[0028] Figure 4 This is a top-view three-dimensional structural diagram of the locking block and fixing plate of a reduction and fixation device for clinical orthopedic use proposed in this invention;

[0029] Figure 5 This is a top-view three-dimensional structural diagram of the second clamping plate and trapezoidal clamping block of a reduction and fixation device for clinical orthopedic use proposed in this invention;

[0030] Figure 6 This is a top-view three-dimensional structural diagram of the first fixing ring and bone reduction mechanism of a reduction and fixation device for clinical orthopedic use proposed in this invention;

[0031] Figure 7 This is a top-view three-dimensional structural diagram of the second moving block, the first threaded sleeve, and the second extension rod of a reduction and fixation device for clinical orthopedic use proposed in this invention.

[0032] Figure 8 This is a top-view three-dimensional structural diagram of a bone repositioning mechanism based on a repositioning and fixation device for clinical orthopedics proposed in this invention.

[0033] Figure 9 This is a bottom-view three-dimensional structural diagram of the first moving block and the first extension rod of a reduction and fixation device for clinical orthopedics proposed in this invention.

[0034] Figure 10 This is a top-view three-dimensional structural diagram of the first clamping plate and connecting plate of a reduction and fixation device for clinical use in orthopedics proposed in this invention.

[0035] In the diagram: 1. First fixing ring; 2. Second fixing ring; 3. Third fixing ring; 4. Spacing adjustment mechanism; 401. First moving block; 402. First extension rod; 403. Second moving block; 404. First threaded sleeve; 405. Second extension rod; 406. Third moving block; 407. Second threaded sleeve; 408. Operating nut; 409. Limiting slider; 410. Limiting groove; 5. Bone repositioning mechanism; 501. Connecting plate; 502. Moving groove; 5 03. Fastening bolt; 504. Connecting rod; 505. Bone repositioning pin; 6. Fixing mechanism; 601. First clamping plate; 602. Connecting plate; 603. Clamping block; 604. Fixing plate; 605. Pin slot; 606. Second pin hole; 607. First pin hole; 608. Second clamping plate; 609. Third pin hole; 610. Trapezoidal clamping block; 611. Limiting bolt; 612. Trapezoidal slider; 613. Addition / reduction port; 614. Long bolt; 7. First through hole. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] Example, refer to Figure 1-10 A reduction and fixation device for clinical use in orthopedics includes a first fixation ring 1, a second fixation ring 2 and a third fixation ring 3, and also includes a spacing adjustment mechanism 4, a bone reduction mechanism and a fixation mechanism 6.

[0039] In this invention, the spacing adjustment mechanism 4 includes multiple first moving blocks 401 that are slidably connected to the first fixed ring 1 in an array. The bottom of the multiple first moving blocks 401 is fixedly connected to a first extension rod 402. The bottom of the first extension rod 402 is fixedly connected to a first threaded rod. Multiple second moving blocks 403 are slidably connected to the second fixed ring 2 in an array. The top of the second moving blocks 403 is rotatably connected to a first threaded sleeve 404 corresponding to the first threaded rod. The first threaded rod is threadedly fitted inside the first threaded sleeve 404. By rotating the first threaded sleeve 404 and threading it to the first threaded rod, the first extension rod 402 is extended or shortened, thereby adjusting the spacing between the first fixed ring 1 and the second fixed ring 2 according to the actual position required by the patient until the spacing is suitable for the patient's limb (such as the upper and middle sections of the forearm). When the total length of bone fixation required by the patient does not need to be three fixed rings, the first fixed ring 1 and the third fixed ring 3 are used together, and the extension rod is adjusted.

[0040] A second extension rod 405 is fixedly connected to the bottom of the second moving block 403. A second threaded rod is fixedly connected to the bottom of the second extension rod 405. A third moving block 406 is slidably connected to the third fixed ring 3. A second threaded sleeve 407 is rotatably connected to the top of the third moving block 406 corresponding to the second threaded rod. The second threaded rod is threaded inside the second threaded sleeve 407. Operating nuts 408 are fixedly connected to the bottom of the second threaded sleeve 407 and the first threaded sleeve 404, respectively. Operating nuts 408 are fixedly connected to the first fixed ring 1, the second fixed ring 2, and the third fixed ring 3, respectively. A limiting groove 410 is provided. The interiors of the first moving block 401, the second moving block 403, and the third moving block 406 are respectively fixedly connected to the limiting groove 410 with limiting sliders 409. The limiting sliders 409 are movably sleeved inside the limiting groove 410. When the second threaded sleeve 407 is rotated, it is threadedly connected to the second threaded rod, thereby driving the second extension rod 405 to extend or shorten. This allows the distance between the second fixing ring 2 and the third fixing ring 3 to be adjusted according to the actual length used by the patient, thus making it suitable for repositioning and fixing different parts of different patients.

[0041] In this invention, the bone repositioning mechanism 5 includes a connecting plate 501. Two sets of movable slots 502 are provided on the first extension rod 402 and the second extension rod 405. The connecting plate 501 is movably fitted inside one set of movable slots 502. A fastening bolt 503 is fixedly connected to the connecting plate 501, which is used to fix and limit the connection plate 501 to the first extension rod 402 and the second extension rod 405. The fastening bolt 503 is movably fitted inside the other set of movable slots 502. Mounting holes are provided on both sides of the connecting plate 501. A connecting rod 504 is fixedly connected inside the mounting holes by a fastening nut. A medical bone reduction pin 505 is fixedly connected to the inner side; the bone reduction pin 505 is used to fix the patient's bone (the use of the bone reduction pin 505 is a routine and skilled technique in existing medicine, and will not be described in detail here). The connecting plate 501 is adjusted up and down along the moving groove 502 to adjust according to the actual affected area of ​​the patient, to the position corresponding to the fracture / dislocation site. According to the reduction requirements, the angle and depth of the bone reduction pin 505 are adjusted to perform directional traction reduction of the bone. After adjustment, the connecting plate 501 is tightened and constrained by the fastening bolt 503, which fixes and constrains the reduction of the patient's bone.

[0042] In this invention, the fixing mechanism 6 includes a first locking plate 601, a connecting plate 602 fixedly connected to one side of the first locking plate 601, and an increase / decrease port 613 respectively opened on the first fixing ring 1, the second fixing ring 2 and the third fixing ring 3. A locking block 603 is respectively locked on the increase / decrease port 613. A fixing plate 604 is fixedly connected to the upper and lower sides of the locking block 603. A first pin hole 607 is opened on the two fixing plates 604 respectively. A pin groove 605 is opened on both sides of the locking block 603. The locking block 603 is locked with the increase / decrease port 613 through the pin groove 605. According to the circumference of the patient's limb, the number of locking blocks 603 is increased or decreased through the increase / decrease port 613. After the number is adjusted, the locking blocks 603 are locked into the increase / decrease port 613, and the locking blocks 603 are used to reinforce the rigidity of the first fixing ring 1, the second fixing ring 2 and the third fixing ring 3.

[0043] In this invention, the top two sides of the locking block 603 are respectively provided with second pin holes 606, and the internal threads of the second pin holes 606 are connected to first pin bolts for locking the locking block 603 with the first fixing ring 1, the second fixing ring 2 and the third fixing ring 3 respectively. A trapezoidal slider 612 is fixedly connected to the inner side of the connecting plate 602, and a trapezoidal locking block 610 is slidably connected to the trapezoidal slider 612. A threaded hole is symmetrically provided on one side of the trapezoidal locking block 610, and a limit bolt 611 is connected to the internal threads of the threaded hole for limiting and fixing the trapezoidal locking block 610 and the trapezoidal slider 612. A second locking plate 608 is fixedly connected to one side of the trapezoidal locking block 610. The plate 608 has a third pin hole 609. The second locking plate 608 is engaged with the corresponding locking block 603. The third pin hole 609 and the first pin hole 607 are respectively threaded with second pin bolts. After the locking block 603 is engaged, the first locking plate 601 is engaged with the corresponding locking block 603. At the same time, the second locking plate 608 is moved along the trapezoidal slider 612 by the trapezoidal locking block 610 and engaged with the corresponding locking block 603. At the same time, the second locking block 608 and the connecting plate 602 are fixed and limited by the limiting bolt 611, thereby ensuring that the second fixing ring 2 and the third fixing ring 3 are locked with the connecting plate 602 and ensuring that the device fits tightly with the limb.

[0044] In this invention, a plurality of first through holes 7 are arrayed on the first fixing ring 1, the second fixing ring 2, and the third fixing ring 3, and a second through hole is formed on the first moving block 401, the second moving block 403, and the third moving block 406. Long bolts 614 are threadedly connected inside the first through holes 7 and the second through holes, which are used to limit and fix the first fixing ring 1, the second fixing ring 2, and the third fixing ring 3 to the first moving block 401, the second moving block 403, and the third moving block 406, respectively. The long bolts 614 fix and limit the first moving block 401, the second moving block 403, and the third moving block 406 to the first fixing ring 1, the second fixing ring 2, and the third fixing ring 3, respectively.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A reduction and fixation device for clinical orthopedic use, comprising a first fixation ring (1), a second fixation ring (2), and a third fixation ring (3), characterized in that, Also includes: The spacing adjustment mechanism (4) is located between the first fixed ring (1) and the second fixed ring (2) and the second fixed ring (2) and the third fixed ring (3), and is used to precisely adjust the spacing between the three fixed rings according to the length of the patient's limb or treatment needs. The bone repositioning mechanism (5), located on the spacing adjustment mechanism (4), is used to achieve directional traction and repositioning of the bones for the patient's fracture or dislocation site. The fixing mechanism (6) is located on one side of the first fixing ring (1), the second fixing ring (2) and the third fixing ring (3), and is used to tightly attach and lock the fixing ring to the patient's limb to ensure the overall stability of the device.

2. The reduction and fixation device for clinical orthopedic use according to claim 1, characterized in that, The spacing adjustment mechanism (4) includes a plurality of first moving blocks (401) that are slidably connected to the first fixed ring (1). The bottom of the plurality of first moving blocks (401) is fixedly connected to a first extension rod (402). The bottom of the first extension rod (402) is fixedly connected to a first threaded rod. The second fixed ring (2) has a plurality of second moving blocks (403) that are slidably connected to the second moving block (403). The top of the second moving block (403) is rotatably connected to a first threaded sleeve (404) corresponding to the first threaded rod. The first threaded rod is threadedly fitted inside the first threaded sleeve (404).

3. The reduction and fixation device for clinical orthopedic use according to claim 2, characterized in that, The bottom of the second moving block (403) is fixedly connected to a second extension rod (405), the bottom of the second extension rod (405) is fixedly connected to a second threaded rod, the third moving block (406) is slidably connected to the third fixed ring (3), the top of the third moving block (406) is rotatably connected to a second threaded sleeve (407) corresponding to the second threaded rod, the second threaded rod is threaded inside the second threaded sleeve (407), and operating nuts (408) are fixedly connected to the bottom of the second threaded sleeve (407) and the first threaded sleeve (404), respectively.

4. The reduction and fixation device for clinical orthopedic use according to claim 3, characterized in that, Limiting grooves (410) are respectively provided on the first fixed ring (1), the second fixed ring (2) and the third fixed ring (3). Limiting sliders (409) are fixedly connected to the inside of the first moving block (401), the second moving block (403) and the third moving block (406) respectively at the limiting grooves (410). The limiting sliders (409) are movably sleeved inside the limiting grooves (410).

5. A reduction and fixation device for clinical orthopedic use according to claim 3, characterized in that, The bone repositioning mechanism (5) includes a connecting plate (501). Two sets of moving slots (502) are provided on the first extension rod (402) and the second extension rod (405). The connecting plate (501) is movably sleeved inside one set of moving slots (502). A fastening bolt (503) is fixedly connected to the connecting plate (501) for fixing and limiting the connection plate (501) with the first extension rod (402) and the second extension rod (405). The fastening bolt (503) is movably sleeved inside the other set of moving slots (502). Mounting holes are provided on both sides of the connecting plate (501). A connecting rod (504) is fixedly connected inside the mounting hole by a fastening nut. A medical bone repositioning needle (505) is fixedly connected to the inner side of the connecting rod (504).

6. A reduction and fixation device for clinical orthopedic use according to claim 1, characterized in that, The fixing mechanism (6) includes a first locking plate (601), a connecting plate (602) is fixedly connected to one side of the first locking plate (601), and the first fixing ring (1), the second fixing ring (2) and the third fixing ring (3) are respectively provided with expansion and reduction ports (613). The expansion and reduction ports (613) are respectively connected with locking blocks (603). The upper and lower sides of the locking blocks (603) are respectively fixedly connected with fixing plates (604). The two fixing plates (604) are respectively provided with first pin holes (607). The sides of the locking blocks (603) are respectively provided with pin grooves (605). The locking blocks (603) are connected to the expansion and reduction ports (613) through the pin grooves (605).

7. A reduction and fixation device for clinical orthopedic use according to claim 6, characterized in that, The top two sides of the locking block (603) are respectively provided with second pin holes (606), and the internal threads of the second pin holes (606) are connected with first pin bolts, which are used to lock the locking block (603) with the first fixing ring (1), the second fixing ring (2) and the third fixing ring (3) respectively.

8. A reduction and fixation device for clinical orthopedic use according to claim 6, characterized in that, A trapezoidal slider (612) is fixedly connected to the inner side of the connecting plate (602). A trapezoidal block (610) is slidably connected to the trapezoidal slider (612). A threaded hole is symmetrically opened on one side of the trapezoidal block (610). A limit bolt (611) is connected to the threaded hole inside the threaded hole for limiting and fixing the trapezoidal block (610) and the trapezoidal slider (612).

9. A reduction and fixation device for clinical orthopedic use according to claim 8, characterized in that, A second card plate (608) is fixedly connected to one side of the trapezoidal card block (610). A third pin hole (609) is provided on the second card plate (608). The second card plate (608) is engaged with the corresponding card block (603). The third pin hole (609) and the first pin hole (607) are respectively threaded with second pin bolts.

10. A reduction and fixation device for clinical orthopedic use according to claim 3, characterized in that, The first fixing ring (1), the second fixing ring (2) and the third fixing ring (3) are respectively provided with a plurality of first through holes (7), and the first moving block (401), the second moving block (403) and the third moving block (406) are respectively provided with second through holes. The first through holes (7) and the second through holes are threaded with long bolts (614) for limiting and fixing the first fixing ring (1), the second fixing ring (2) and the third fixing ring (3) to the first moving block (401), the second moving block (403) and the third moving block (406) respectively.

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