Hallux valgus osteotomy correction frame

Abstract

The utility model discloses a hallux valgus osteotomy correction frame which comprises a first fixing rod, a second fixing rod, a first adjusting knob, a first guide pin and a correction mechanism. One end of the first guide pin is in sliding connection with the first fixing rod, and the relative position of the first guide pin and the first fixing rod is adjusted through the first adjusting knob; one end of the first fixing rod is rotationally connected with one end of the second fixing rod, the angle between the first fixing rod and the second fixing rod is adjusted through a third adjusting knob, one end of the correcting mechanism is slidably connected with the second fixing rod, and the relative position of the correcting mechanism and the second fixing rod is adjusted through a fourth adjusting knob. The other end of the correcting mechanism is close to one end of the first guide pin. The angle between the first fixing rod and the second fixing rod can be adjusted, and the position between the first guide pin and the first fixing rod is convenient to adjust; the position and the angle of the first guide needle are convenient to adjust, fixation is stable, and force can be applied to different hallux valgus dislocation parts of different patients.

Description

Technical Field

[0001] The utility model relates to the technical field of hallux valgus internal fixation, in particular to a hallux valgus osteotomy correction frame. Background Art

[0002] The patent number is CN202210886462.2, a hallux valgus osteotomy correction and internal fixation navigation device, including a support rod, a fixed rod of the support rod is provided with evenly distributed insertion holes, the inside of the insertion hole can be inserted into the first guide pin, the insertion hole is designed to be obliquely aligned, and a correction mechanism is arranged on the top of the support rod; a guide pin groove is arranged inside the correction mechanism, and a second guide pin is passed through the inside of the guide pin groove. By inserting the first guide pin into different insertion holes and forming triangles of different sizes between the second guide pin and the support rod, the fixation surgery after correction of different hallux valgus patients can be satisfied; the push rod rotates to push the metatarsal dislocation part of the hallux valgus part to align. Since the angle of the support rod in this patent is fixed, the position and angle of the first guide pin are not convenient to adjust, the fixation is not stable, and it is difficult to apply force to the different hallux valgus dislocation parts of different patients. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a hallux valgus osteotomy correction frame in view of the deficiencies of the prior art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hallux valgus osteotomy correction frame, comprising a first fixed rod, a second fixed rod, a first adjusting knob, a third adjusting knob, a fourth adjusting knob, a first guide needle and a correction mechanism; one end of the first guide needle is slidably connected to the first fixed rod, and the relative position of the first guide needle and the first fixed rod is adjusted by the first adjusting knob; one end of the first fixed rod is rotatably connected to one end of the second fixed rod, and the angle between the first fixed rod and the second fixed rod is adjusted by the third adjusting knob, one end of the correction mechanism is slidably connected to the second fixed rod, and the relative position of the correction mechanism and the second fixed rod is adjusted by the fourth adjusting knob, and the other end of the correction mechanism is close to one end of the first guide needle.

[0005] A preferred solution is that the hallux valgus osteotomy correction frame also includes a second adjustment knob and a second guide needle; one end of the second guide needle is slidably connected to the second fixed rod, and the relative position of the second guide needle and the second fixed rod is adjusted by the second adjustment knob; the other end of the first guide needle and the other end of the second guide needle are close to each other.

[0006] A preferred solution is that the first fixing rod is provided with a first sliding groove, and the second fixing rod is provided with a second sliding groove; one end of the first guide needle is connected to a first slider, the first slider is slidably connected to the first sliding groove, and the first adjusting knob is used to adjust the relative position of the first slider and the first sliding groove; one end of the second guide needle is connected to a second slider, the second slider is slidably connected to the second sliding groove, and the second adjusting knob is used to adjust the relative position of the second slider and the second sliding groove; one end of the correction mechanism is connected to a third slider, the third slider is slidably connected to the second sliding groove, and the fourth adjusting knob is used to adjust the relative position of the third slider and the second sliding groove.

[0007] A preferred solution is that the correction mechanism includes a pushing tube, a fixed tube, a rotating handle, a third guide needle and a contact plate; a thread groove is opened inside the fixed tube, a feed thread is arranged inside the thread groove, a pushing tube is connected to the internal thread of the thread groove, a rotating handle is coaxially fixedly installed on the right side of the pushing tube, and the pushing tube is driven to move left and right inside the fixed tube under the action of the thread groove by rotating the rotating handle, and the third guide needle passes through the pushing tube in turn to point to the other end of the first guide needle.

[0008] A preferred solution is that a contact plate is rotatably provided at the left end of the fixed tube.

[0009] A preferred solution is that the number of the first guide needles is two, and the two first guide needles are parallel to each other; the number of the second guide needles is two, and the two first guide needles are parallel to each other.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the angle between the first fixing rod and the second fixing rod can be adjusted, and when adjusted to a suitable angle, the first fixing rod and the second fixing rod are fixed by a third adjusting knob. One end of the first guide needle can slide along the first fixing rod, and when the first guide needle slides to an appropriate position, the first guide needle slides and the first fixing rod are fixed by the first adjusting knob; the second guide needle can slide along the second fixing rod, and when the second guide needle slides to an appropriate position, the second guide needle slides and the second fixing rod are fixed by the second adjusting knob, the first guide needle and the second guide needle form an angle, the first guide needle and the second guide needle can fix the metatarsal bones respectively, the relative position of the correction mechanism and the second fixing rod can be adjusted, and the correction mechanism can fix the other metatarsal bone. The utility model fixes the corrected hallux valgus part, thereby forming the hallux valgus correction effect, and finally, after being completely fixed, the first guide needle and the second guide needle are removed from the patient's metatarsal bones to complete the entire operation. The angle between the first fixing rod and the second fixing rod can be adjusted, and the position between the first guide needle and the first fixing rod is convenient to adjust; the position and angle of the first guide needle are convenient to adjust, and the fixation is stable, so that force can be applied to different hallux valgus dislocation parts of different patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the correction mechanism in the utility model. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] like Figure 1 and Figure 2 As shown, the utility model provides a technical solution: a hallux valgus osteotomy correction frame, comprising a first fixing rod 10, a second fixing rod 20, a first adjusting knob 31, a second adjusting knob 32, a third adjusting knob 33, a fourth adjusting knob 34, a first guide pin 41 and a correction mechanism 50; one end of the first guide pin 41 is slidably connected to the first fixing rod 10, and the relative position of the first guide pin 41 and the first fixing rod 10 is adjusted by the first adjusting knob 31; one end of the first fixing rod 10 is rotatably connected to one end of the second fixing rod 20, and the angle between the first fixing rod 10 and the second fixing rod 20 is adjusted by the third adjusting knob 33, the correction mechanism 50 is slidably connected to the second fixing rod 20, and the relative position of the correction mechanism 50 and the second fixing rod 20 is adjusted by the fourth adjusting knob 34, and the correction mechanism 50 is located at one end away from the first fixing rod 10.

[0015] like Figure 1 and Figure 2 As shown, the angle between the first fixing rod 10 and the second fixing rod 20 can be adjusted. When adjusted to a suitable angle, the first fixing rod 10 and the second fixing rod 20 are fixed by the third adjusting knob 33. One end of the first guide needle 41 can slide along the first fixing rod 10. When the first guide needle 41 slides to a suitable position, the first guide needle 41 and the first fixing rod 10 are fixed by the first adjusting knob 31; the first guide needle 41 can fix the first bone, the relative position of the correction mechanism 50 and the second fixing rod 20 can be adjusted, and the correction mechanism 50 can fix the second bone. The first bone and the second bone are metatarsal bones 60, respectively. The utility model fixes the corrected hallux valgus part, thereby forming the hallux valgus correction effect. Finally, after being completely fixed, the first guide needle 41 is removed from the patient's metatarsal bone 60 to complete the entire operation.

[0016] like Figure 1 and Figure 2As shown, the hallux valgus osteotomy correction frame also includes a second adjustment knob 32 and a second guide pin 42; one end of the second guide pin 42 is slidably connected to the second fixing rod 20, and the relative position of the second guide pin 42 and the second fixing rod 20 is adjusted by the second adjustment knob 32; the second guide pin 42 can slide along the second fixing rod 20, and when the second guide pin 42 slides to a proper position, the second guide pin 42 slides and is fixed to the second fixing rod 20 by the second adjustment knob 32. The other end of the first guide pin and the other end of the second guide pin are close to each other. The first guide pin 41 and the second guide pin 42 can fix the first bone respectively, and the first guide pin 41 and the second guide pin 42 form an angle.

[0017] like Figure 1 and Figure 2 As shown, the first fixing rod 10 is provided with a first slide groove 11, and the second fixing rod 20 is provided with a second slide groove 21; one end of the first guide pin 41 is connected to a first slider 43, the first slider 43 is slidably connected to the first slide groove 11, and the first adjusting knob 31 is used to adjust the relative position of the first slider 43 and the first slide groove 11; one end of the second guide pin 42 is connected to a second slider 44, the second slider 44 is slidably connected to the second slide groove 21, and the second adjusting knob 32 is used to adjust the relative position of the second slider 44 and the second slide groove 21; one end of the correction mechanism 50 is connected to a third slider 45, the third slider 45 is slidably connected to the second slide groove 21, and the fourth adjusting knob 34 is used to adjust the relative position of the third slider 45 and the second slide groove 21. The first guide pin 41 slides along the first slide groove 11 through the first slider 43. The second guide pin 42 slides along the second slide groove 21 through the second slider 44. It is convenient to adjust the positions of the first guide pin 41 and the second guide pin 42.

[0018] like Figure 1 and Figure 2As shown, the correction mechanism 50 includes a push tube 51, a fixed tube 52, a rotating handle 53, a third guide pin 54 and a contact plate 55; a thread groove is provided inside the fixed tube 52, a feed thread is provided inside the thread groove, and the push tube 51 is threadedly connected inside the thread groove, and a rotating handle is coaxially fixedly installed on the right side of the push tube 51. By rotating the rotating handle, the push tube 51 is driven to move left and right inside the fixed tube 52 under the action of the thread groove, and the third guide pin 54 passes through the push tube 51 in sequence and points to the other end of the first guide pin. The eversion part of the metatarsal 60 is exposed through minimally invasive surgery, and the hallux valgus device is placed at the metatarsal 60 through the first fixing rod 10 and the second fixing rod 20, and then the third guide pin 54 is inserted, and the third guide pin 54 is made to enter the patient's metatarsal 60 for fixation. At this time, the push tube 51 that moves left and right can make the dislocated parts of the hallux valgus align, so that the dislocation angle between the two becomes smaller. The correction effect is achieved. After the correction is completed, the third guide needle 54 can be pulled out from the inside of the guide tube 51.

[0019] like Figure 1 and Figure 2 As shown, the left end of the fixed tube 52 is rotatably provided with a contact plate 55. When in use, the contact plate 55 contacts the metatarsal bone 60 of the foot. In order for the push tube 51 to move to the left, it is necessary to rotate inside the fixed tube 52. The contact plate 55 and the push tube 51 do not rotate together. The rotating contact plate 55 can prevent the contact plate 55 from rotating together with the push rod 33 during the rotation of the push tube 51, thereby avoiding the bone surface from being twisted and causing discomfort.

[0020] like Figure 1 and Figure 2 As shown, there are two first guide needles 41, which are parallel to each other; there are two second guide needles 42, which are parallel to each other. The fixation is more firm and stable.

[0021] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A hallux valgus osteotomy correction frame, characterized in that: It includes a first fixed rod, a second fixed rod, a first adjusting knob, a third adjusting knob, a fourth adjusting knob, a first guide needle and a correction mechanism; one end of the first guide needle is slidably connected to the first fixed rod, and the relative position of the first guide needle and the first fixed rod is adjusted by the first adjusting knob; one end of the first fixed rod is rotatably connected to one end of the second fixed rod, and the angle between the first fixed rod and the second fixed rod is adjusted by the third adjusting knob, one end of the correction mechanism is slidably connected to the second fixed rod, and the relative position of the correction mechanism and the second fixed rod is adjusted by the fourth adjusting knob, and the other end of the correction mechanism is close to one end of the first guide needle.

2. The hallux valgus osteotomy correction frame according to claim 1, characterized in that: The hallux valgus osteotomy correction frame also includes a second adjusting knob and a second guide needle; one end of the second guide needle is slidably connected to the second fixing rod, and the relative position of the second guide needle and the second fixing rod is adjusted by the second adjusting knob; the other end of the first guide needle and the other end of the second guide needle are close to each other.

3. The hallux valgus osteotomy correction frame according to claim 2, characterized in that: The first fixing rod is provided with a first sliding groove, and the second fixing rod is provided with a second sliding groove; one end of the first guide needle is connected to a first slider, the first slider is slidably connected to the first sliding groove, and the first adjusting knob is used to adjust the relative position of the first slider and the first sliding groove; one end of the second guide needle is connected to a second slider, the second slider is slidably connected to the second sliding groove, and the second adjusting knob is used to adjust the relative position of the second slider and the second sliding groove; one end of the correction mechanism is connected to a third slider, the third slider is slidably connected to the second sliding groove, and the fourth adjusting knob is used to adjust the relative position of the third slider and the second sliding groove.

4. A hallux valgus osteotomy correction frame according to any one of claims 1 to 3, characterized in that: The correction mechanism includes a pushing tube, a fixed tube, a rotating handle, a third guide needle and a contact plate; a thread groove is opened inside the fixed tube, a feed thread is arranged inside the thread groove, a pushing tube is connected with the internal thread of the thread groove, a rotating handle is coaxially fixedly installed on the right side of the pushing tube, and the pushing tube is driven to move left and right inside the fixed tube under the action of the thread groove by rotating the rotating handle, and the third guide needle passes through the pushing tube in turn and points to the other end of the first guide needle.

5. The hallux valgus osteotomy correction frame according to claim 4, characterized in that: The left end of the fixed pipe is rotatably provided with a contact plate.

6. The hallux valgus osteotomy correction frame according to claim 1, characterized in that: There are two first guide needles, which are parallel to each other; there are two second guide needles, which are parallel to each other.

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