A fixture for use with a distraction osteogenesis device

Abstract

The utility model discloses a kind of fixators used in cooperation with distraction osteogenesis device, including clamp and fixed sleeve;Clamp: its left and right sides are provided with connecting mechanism, the connecting mechanism includes fixed plate, flexible strip, connecting plate and annular buckle, the left and right sides of clamp are provided with fixed plate, the lower end of fixed plate is fixedly connected with flexible strip, the lower end of flexible strip is fixedly connected with connecting plate, the middle part of opposite inner side of two connecting plates is equipped with annular buckle;Fixed sleeve: its outer camber surface is equipped with side wing, the inside of fixed sleeve is provided with hexagon hole, fixed sleeve is respectively clamped in the inside of annular buckle, the connecting mechanism further includes spring piece and connecting seat, the opposite inner side of two connecting plates is equipped with spring piece, which is symmetrically distributed up and down, the fixator used in cooperation with distraction osteogenesis device, distraction osteogenesis device is fixed by hexagon hole, avoid distraction osteogenesis device and occur rotation due to being acted on.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a fixator used in conjunction with a distraction osteogenerator. Background Technology

[0002] Distraction osteogenesis is an endogenous bone tissue engineering technique. It involves cutting the bone and placing special distractors on both sides of the cut line. After a certain delay period (5-7 days), the bone cut gap is slowly widened (1-1.5 mm / day), which continuously widens the bone cut gap and stimulates the body's tissue regeneration potential. New bone tissue is continuously formed within the distraction gap, and the muscles, nerves, blood vessels, skin, etc. around the bone are simultaneously lengthened, thereby achieving the purpose of lengthening the bone.

[0003] Distraction osteogenesis surgery requires the implantation of a distraction osteogenesis device. In the early stages, a spiral rod is used to push the patient's chin forward. Because human bones are relatively hard, when the chin is pushed forward, the chin exerts a reaction force on the end of the device, causing the distraction osteogenesis device to rotate due to the reaction force. It usually rotates once every 8 hours, one rotation at a time. For each rotation on the outside, the internal instrument is pushed 0.4 mm. Therefore, the distraction osteogenesis device needs to be fixed. Usually, tape is used to fix the device, but tape has poor stability after long-term use, and the distraction osteogenesis device will still rotate. To address this, we propose a fixator that works in conjunction with the distraction osteogenesis device. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a fixator for use with a distraction osteoblast. The distraction osteoblast is fixed through a hexagonal hole, which prevents the distraction osteoblast from rotating due to the reaction force, and can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixator used in conjunction with a distraction osteogenerator, comprising a clamp and a fixing sleeve;

[0006] Clamp: A connecting mechanism is provided on both the left and right sides. The connecting mechanism includes a fixed plate, a flexible strip, a connecting plate and a ring buckle. A fixed plate is provided on both the left and right sides of the clamp. A flexible strip is fixedly connected to the lower end of the fixed plate. A connecting plate is fixedly connected to the lower end of the flexible strip. A ring buckle is provided in the middle of the opposite inner side of the two connecting plates.

[0007] Fixed sleeve: Its outer arc surface is provided with side wings, and the inside of the fixed sleeve is provided with hexagonal holes. The fixed sleeve is respectively snapped into the inside of the ring buckle. The distraction osteogenerator is fixed through the hexagonal holes to prevent the distraction osteogenerator from rotating due to the reaction force.

[0008] Furthermore, the connecting mechanism also includes spring plates and connecting seats. The inner surfaces of the two connecting plates are provided with spring plates that are symmetrically distributed vertically. The section of the spring plate away from the adjacent connecting plate contacts the surface of the adjacent side wing, so that the side wing remains in contact with the position of the skull behind the ear.

[0009] Furthermore, the flexible strip is a spring steel flexible strip, which can withstand frequent bending without permanent deformation.

[0010] Furthermore, the middle part of the clamp is movably fitted with an outer cover, which is made of cotton, to improve comfort.

[0011] Furthermore, the clamp has symmetrically distributed triangular plates on both the left and right sides, and symmetrically distributed triangular grooves on the opposite outer sides of the two fixing plates. The triangular plates are respectively engaged with the interior of the adjacent triangular grooves to fix the fixing plates.

[0012] Furthermore, each of the triangular grooves has a cylindrical protrusion on the side near the clamp, and each of the triangular grooves has a recessed hole inside. The cylindrical protrusions are respectively inserted into the interior of the adjacent recessed holes to achieve the positioning of the fixing plate.

[0013] Furthermore, each of the ring buckles is provided with a baffle on its rear side, and the front side of the baffle contacts the rear end of the adjacent fixing sleeve to prevent the fixing sleeve from detaching.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This fixator, used in conjunction with the distraction osteogenerator, has the following advantages:

[0015] After the clamp is put on, the flexible strip presses the fixing sleeve tightly, and the spring plate keeps the side wings in contact with the skin of the skull behind the ear, preventing the fixing sleeve from rotating, thereby fixing the distraction osteoblast and preventing the distraction osteoblast from rotating due to the reaction force. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a partial structural schematic diagram of the connecting mechanism of this utility model;

[0018] Figure 3 This is a partial exploded view of the clamp of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the fixing sleeve of this utility model.

[0020] In the diagram: 1 clamp, 2 connecting mechanism, 21 fixing plate, 22 flexible strip, 23 spring sheet, 24 connecting seat, 25 connecting plate, 26 ring buckle, 3 fixing sleeve, 4 side wing, 5 outer sleeve, 6 triangular clamping plate, 7 triangular groove, 8 cylindrical protrusion, 9 embedded hole, 10 baffle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This embodiment provides a technical solution: a fixator used in conjunction with a distraction osteogenerator, including a clamp 1 and a fixing sleeve 3;

[0023] Clamp 1: Connecting mechanisms 2 are provided on both its left and right sides. Each connecting mechanism 2 includes a fixed plate 21, a flexible strip 22, a connecting plate 25, and an annular buckle 26. Fixed plates 21 are provided on both sides of clamp 1. Flexible strips 22 are fixedly connected to the lower ends of fixed plates 21, and connecting plates 25 are fixedly connected to the lower ends of flexible strips 22. An annular buckle 26 is provided in the middle of the opposite inner surfaces of the two connecting plates 25. Connecting mechanisms 2 also include spring plates 23 and connecting seats 24. Spring plates 23 are symmetrically distributed vertically on the opposite inner surfaces of the two connecting plates 25. The section of each spring plate 23 away from the adjacent connecting plate 25 contacts the surface of the adjacent side wing 4. The flexible strip 22 is a spring steel flexible strip. An outer sleeve 5 is movably fitted in the middle of clamp 1. The outer sleeve 5 is a cotton outer sleeve. Triangular clamping plates 6 are symmetrically distributed front and back on both sides of clamp 1. Annular buckles 6 are symmetrically distributed front and back on the opposite outer surfaces of the two fixed plates 21. The triangular grooves 7 and triangular plates 6 are respectively engaged in the interior of adjacent triangular grooves 7. The side of each triangular groove 7 near the clamp 1 is provided with a cylindrical protrusion 8. The interior of each triangular groove 7 is provided with a buried hole 9. The cylindrical protrusion 8 is respectively inserted into the interior of adjacent buried holes 9. The rear side of each ring buckle 26 is provided with a baffle 10. The front side of the baffle 10 contacts the rear end of the adjacent fixing sleeve 3, so that the fixing sleeve 3 is inserted into the interior of the ring buckle 26. The baffle 10 prevents the fixing sleeve 3 from falling off. The clamp 1 is worn on the patient's forehead and can be temporarily removed when the patient washes their face or hair for easy carrying. The section of the spring plate 23 away from the adjacent connecting plate 25 contacts the surface of the adjacent side wing 4, so that the side wing 4 always keeps in close contact with the skin of the skull behind the ear and prevents rotation. The flexible strip 22 is a spring steel flexible strip that can withstand frequent bending without permanent deformation, so that the side wing 4 presses tightly against the skin of the skull behind the ear.

[0024] Fixed sleeve 3: Its outer arc surface is provided with side wings 4. The inside of the fixed sleeve 3 is provided with hexagonal holes. The fixed sleeve 3 is respectively snapped into the inside of the ring buckle 26. The fixed sleeve 3 is inserted into the rear end of the distraction osteoblast. The side wings 4 are in contact with the skin of the skull behind the ear. When the distraction osteoblast is subjected to reaction force and rotates, the force drives the fixed sleeve 3 to rotate. The side wings 4 prevent the fixed sleeve 3 from rotating, thereby preventing the distraction osteoblast from rotating due to reaction force.

[0025] The working principle of the fixator used in conjunction with the distraction osteotomy device provided by this utility model is as follows: After the patient has undergone distraction osteotomy surgery, the fixation sleeve 3 is inserted into the rear end of the distraction osteotomy device, and the side wing 4 is in contact with the skin of the skull behind the ear. When the distraction osteotomy device is subjected to a reaction force and rotates, the force of the fixation sleeve 3 drives the rotation of the side wing 4, thus preventing the fixation sleeve 3 from rotating due to the reaction force. Subsequently, the fixation sleeve 3 is inserted into the inside of the ring buckle 26, the baffle 10 prevents the fixation sleeve 3 from disengaging, and the clamp 1 is put on the patient. At the forehead, the fixing plate 21 is inserted between the two triangular grooves 7 on the same side, and the cylindrical protrusion 8 is inserted into the interior of the adjacent buried hole 9 to fix the flexible strip 22. It can be temporarily removed when the patient washes his face or hair for easy carrying. The section of the spring plate 23 away from the adjacent connecting plate 25 is in contact with the surface of the adjacent side wing 4, so that the side wing 4 always keeps in close contact with the skin of the skull behind the ear to prevent rotation. The flexible strip 22 is a spring steel flexible strip that can withstand frequent bending without permanent deformation, so that the side wing 4 presses tightly against the skin of the skull behind the ear.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fixator for use in conjunction with a distraction osteogenerator, characterized in that: Includes clamp (1) and fixing sleeve (3); Clamp (1): A connecting mechanism (2) is provided on both the left and right sides. The connecting mechanism (2) includes a fixed plate (21), a flexible strip (22), a connecting plate (25), and a ring buckle (26). A fixed plate (21) is provided on both the left and right sides of the clamp (1). A flexible strip (22) is fixedly connected to the lower end of the fixed plate (21). A connecting plate (25) is fixedly connected to the lower end of the flexible strip (22). A ring buckle (26) is provided in the middle of the opposite inner side of the two connecting plates (25). Fixed sleeve (3): Its outer arc surface is provided with side wings (4), and the interior of the fixed sleeve (3) is provided with hexagonal holes. The fixed sleeve (3) is respectively snapped into the interior of the ring buckle (26).

2. The fixation device for use with a distraction osteogenerator according to claim 1, characterized in that: The connecting mechanism (2) also includes a spring plate (23) and a connecting seat (24). The two connecting plates (25) are provided with spring plates (23) symmetrically distributed on their respective inner sides. The section of the spring plate (23) away from the adjacent connecting plate (25) contacts the surface of the adjacent side wing (4).

3. The fixation device for use with a distraction osteogenerator according to claim 1, characterized in that: The flexible strip (22) is a spring steel flexible strip.

4. The fixator for use with a distraction osteogenerator according to claim 1, characterized in that: The clamp (1) is movably fitted with an outer cover (5) in the middle, and the outer cover (5) is a cotton outer cover.

5. A fixator for use with a distraction osteogenerator according to claim 1, characterized in that: The clamp (1) has triangular plates (6) symmetrically distributed on both the left and right sides. The two fixing plates (21) have triangular grooves (7) symmetrically distributed on their opposite outer sides. The triangular plates (6) are respectively engaged in the interior of the adjacent triangular grooves (7).

6. A fixator for use with a distraction osteogenerator according to claim 5, characterized in that: The triangular groove (7) is provided with cylindrical protrusions (8) on the side near the clamp (1), and the interior of the triangular groove (7) is provided with embedded holes (9), and the cylindrical protrusions (8) are respectively inserted into the interior of adjacent embedded holes (9).

7. A fixator for use with a distraction osteogenerator according to claim 1, characterized in that: Each of the ring buckles (26) is provided with a baffle (10) on its rear side, and the front side of the baffle (10) contacts the rear end of the adjacent fixing sleeve (3).

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