A device for positioning the surface projection of a jaw fracture

Abstract

The utility model relates to medical instrument technical field discloses a jaw fracture place body surface projection positioning device, including base, pillar, adjusting platform, first connecting piece, support plate, 3D scanning assembly, light projection subassembly, pendant, screw sleeve, positioning screw shaft, adjusting end, first protective pad, limit hole, screw hole, mounting hole, adjustable screw shaft, backrest, seat plate, in the utility model, the patient can through backrest and seat plate and sit and support, control adjusting platform moves up and down at this moment, makes pendant and patient head top adhere, through adjusting end adjusting positioning screw shaft rotation movement, makes first protective pad of positioning screw shaft one end and patient head two sides adhere and hold in the palm, when the locking sleeve of first connecting shaft outside is away from the shaft sleeve, can be to the second protective pad of adjustable movable plate bottom and patient head forehead position and adhere to support, in this way, through positioning screw shaft and movable plate can be to patient head top position and carry out the support fixed of wrapping type.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a surface projection positioning device for jaw fracture sites. Background Technology

[0002] With the increasing number of diabetic patients, oral health issues have gradually attracted people's attention. In fact, there is a close relationship between diabetes and oral diseases. The oral and maxillofacial region has interconnected fascial spaces that extend from the base of the skull to the mediastinum and contain loose connective tissue. Due to the decreased immune function of diabetic patients, they are more susceptible to various bacteria and viruses, which can lead to infections of the jawbone and surrounding tissues, and consequently, jawbone fractures.

[0003] The treatment of jaw fractures requires the use of a surface projection positioning device. A search revealed a utility model patent for a surface projection positioning device for mandibular condyle fractures with application number 202021239451.8. In this solution, two sets of adjustable positioning plates are used in conjunction with a measuring net to fix the patient's face in contact in order to facilitate the positioning of the patient's face. However, the positioning plates and measuring net also cause contact and compression of the patient's jawbone, which can easily cause discomfort to the patient's wound and has limited fixation effect. Therefore, we propose a surface projection positioning device for jaw fracture sites. Utility Model Content

[0004] The present invention mainly addresses the technical problems existing in the prior art by providing a surface projection positioning device for jaw fracture sites.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a surface projection positioning device for a jaw fracture, comprising a base and an adjustment platform. A support column with threads on its surface is fixedly installed on the top of the base. A threaded sleeve that is threadedly connected to the support column is fixedly installed on the adjustment platform. A support plate is fixedly connected to one side of the edge of the adjustment platform through a first connector. A 3D scanning component and a light projection component are fixedly connected to the surface of the support plate. The bottom of the adjustment platform is provided with a hanging base. The bottom of the hanging base is integrally formed with two sets of threaded sleeves. The threaded sleeves are internally threaded with a positioning screw shaft. One end of the positioning screw shaft is fixedly connected to an adjustment end, and the other end of the positioning screw shaft is fixedly provided with a first protective pad. Limiting holes and screw holes are respectively opened on both sides of the inside of the adjustment platform. An installation hole is opened on the other side of the top of the hanging base. An adjustable screw shaft that rotatably connects to the inside of the installation hole and engages with the internal thread of the screw hole is rotatably connected. A backrest is fixedly installed on the top of the base, and a seat board for the patient to sit on is fixedly installed on one side of the backrest.

[0006] Preferably, when the positioning screw shaft inside the screw sleeve is rotated by the adjustment end, the first protective pads at one end of the two sets of positioning screw shafts clamp and fix the patient's head on both sides.

[0007] Preferably, the limiting rod and the limiting hole are in an interference fit. When the adjustable screw inside the adjusting screw hole is rotated, the adjustable screw drives the positioning screw inside the screw sleeve to adjust up and down through the hanger.

[0008] Preferably, a support mechanism is fixedly installed on the top of the adjustment platform, a second connector is fixedly connected to one side of the support mechanism, a first connecting shaft is fixedly connected to one side of the second connector, a bushing is rotatably sleeved on the outside of the first connecting shaft, a movable plate is fixedly connected to the outside of the bushing, and a second protective pad is fixedly provided at the bottom of the movable plate.

[0009] Preferably, the second protective pad itself has deformation characteristics, and the movable plate is rotatably adjustable relative to the outside of the first connecting shaft via a bushing.

[0010] Preferably, the first connecting shaft is provided with a locking sleeve on its outer sliding sleeve, one end of the first connecting shaft is fixedly connected to a limiting end, and a spring is provided on the outer sleeve of the first connecting shaft. One end of the spring is fixedly connected to the locking sleeve and the other end is fixedly connected to the limiting end. The bushing and the locking sleeve are provided with interlocking grooves on their corresponding ends.

[0011] Preferably, when the interlocking pattern at one end of the locking sleeve and the interlocking pattern at one end of the bushing are aligned and engaged, the locking sleeve is in a limiting and locking state on the bushing.

[0012] Preferably, a spherical cavity is provided at the bottom of the outer periphery of one set of the threaded sleeves, a damping pad is fixedly provided on the inner side of the spherical cavity, a spherical mechanism is snapped into the inside of the damping pad, one end of a second connecting shaft is fixedly installed on the surface of the spherical mechanism, and a placement frame is fixedly installed on the other end of the second connecting shaft. The placement frame has a C-shaped structure, and a placement slot is provided on the inner side of the placement frame.

[0013] Preferably, the second connecting shaft above the placement frame is located inside the damping pad via a spherical mechanism and is in a damped rotation adjustable state. When the placement frame at the bottom of the second connecting shaft is adjusted to any angle and stationary via the spherical mechanism inside the damping pad, the placement frame is in a frictionally engaged and fixed state via the damping pad.

[0014] This invention provides a surface projection positioning device for jaw fracture sites. It has the following beneficial effects: 1. A surface projection positioning device for a jaw fracture site. In this paper, when using the device, the patient can sit and support themselves using a backrest and seat. The adjustment platform is manually moved up and down outside the support column, so that the hanging seat at the bottom of the adjustment platform is in contact with the patient's head. The positioning screw shaft inside the adjustment sleeve is rotated through the adjustment end, so that the first protective pads at the corresponding ends of the two sets of positioning screw shafts are in contact with and clamped to the sides of the patient's head above the ears, away from the mandible. Then, when the locking sleeve outside the first connecting shaft is pulled away from the sleeve, the movable plate is tilted downwards, so that the second protective pad at the bottom of the movable plate is in contact with the patient's forehead. The device is positioned to provide support and fit. Loosening the locking sleeve allows it to engage with the bushing via interlocking grooves, ensuring the stability of the movable plate. This, combined with the positioning screw and movable plate, provides a wrap-around support and fixation to the area above the patient's head, ensuring head stability and preventing contact compression of the jawbone that could cause discomfort to the wound. The patient can then sit with support on the backrest and seat, further ensuring their stability. Finally, the 3D scanning and light projection components scan the patient's head and project a CT model onto the body surface, thereby preventing secondary damage to the jawbone and improving the stability of the head projection.

[0015] 2. A surface projection positioning device for jaw fracture sites, wherein a placement frame is mounted on the bottom of the screw sleeve via a second connecting shaft, and a film can be embedded in the placement slot inside the placement frame for comparison. The placement frame at the bottom of the second connecting shaft can be tilted at any angle through the frictional engagement of the damping pad and the spherical mechanism. When the placement frame is stationary, the damping pad can engage and fix the spherical mechanism to ensure the stability of the placement frame. The film inside the placement frame can be accurately compared with the patient's facial surface for observation, thereby improving the positioning and navigation effect at the jaw fracture site. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 Enlarged view of A in the middle; Figure 3 This utility model Figure 1 Enlarged view of B in the middle; Figure 4 This utility model Figure 1 Enlarged view of C; Figure 5 This is a partial schematic diagram of the spherical mechanism of this utility model.

[0019] Legend: 1. Base; 2. Support column; 3. Adjustment platform; 4. First connecting piece; 5. Support plate; 6. 3D scanning component; 7. Light projection component; 8. Hanging seat; 9. Screw sleeve; 10. Positioning screw shaft; 11. Adjustment end; 12. First protective pad; 13. Limiting hole; 14. Limiting rod; 15. Screw hole; 16. Mounting hole; 17. Adjustable screw shaft; 18. Backrest plate; 19. Seat plate; 20. Support mechanism; 21. Second connecting piece; 22. First connecting shaft; 23. Bushing; 24. Movable plate; 25. Second protective pad; 26. Locking sleeve; 27. Limiting end; 28. Spring; 29. ​​Engagement pattern; 30. Second connecting shaft; 31. Placement frame; 32. Placement slot; 33. Spherical cavity; 34. Damping pad; 35. Spherical mechanism. Detailed Implementation

[0020] 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.

[0021] Example: A surface projection positioning device for jaw fracture sites, such as... Figures 1-5As shown, the device includes a base 1 and an adjustment platform 3. A support column 2 with a threaded surface is fixedly installed on the top of the base 1. A threaded sleeve that is threadedly connected to the support column 2 is fixedly installed on the adjustment platform 3. A first connector 4 is fixedly installed on one side of the edge of the adjustment platform 3. A support plate 5 is fixedly connected to the first connector 4. A 3D scanning component 6 and a light projection component 7 are fixedly connected to the surface of the support plate 5. Both the 3D scanning component 6 and the light projection component 7 are conventional models of 3D scanning components and light projection components used in existing surface projection positioning devices for jaw fractures. The 3D scanning component 6 is used to scan the patient's head, and the light projection component 7 is used to project surface points onto a CT model to achieve precise positioning of the fracture site. Using the 3D scanning component to scan the patient's head and using the light projection component to project surface points onto a CT model to achieve precise positioning of the fracture site are both existing technologies.

[0022] The bottom of the adjustment platform 3 is equipped with a hanging seat 8. The bottom of the hanging seat 8 is integrally formed with two sets of threaded sleeves 9. The threaded sleeves 9 are internally threaded with a positioning screw shaft 10. One end of the positioning screw shaft 10 is fixedly connected to an adjustment end 11, and the other end of the positioning screw shaft 10 is fixedly equipped with a first protective pad 12. Limiting holes 13 and screw holes 15 are respectively opened on both sides of the interior of the adjustment platform 3. A limiting rod 14 is fixedly connected to one side of the top of the hanging seat 8. An installation hole 16 is opened on the other side of the top of the hanging seat 8. An adjustable screw shaft 17 that rotatably connects to the inside of the installation hole 16 and engages with the internal thread of the screw hole 15 is rotatably connected. A backrest 18 is fixedly installed on the top of the base 1. A seat 19 for the patient to sit on is fixedly installed on one side of the backrest 18. A support mechanism 20 is fixedly installed on the top of the adjustment platform 3. A second connecting piece 21 is fixedly connected to one side of the support mechanism 20. A first connecting shaft 22 is fixedly connected to one side of the second connecting piece 21. A bushing 23 is rotatably sleeved on the outside of the first connecting shaft 22. The outside of the bushing 23 is fixedly connected to There is a movable plate 24, and a second protective pad 25 is fixedly installed at the bottom of the movable plate 24. A locking sleeve 26 is slidably sleeved on the outside of the first connecting shaft 22. A limit end 27 is fixedly connected to one end of the first connecting shaft 22. A spring 28 is sleeved on the outside of the first connecting shaft 22. One end of the spring 28 is fixedly connected to the locking sleeve 26 and the other end is fixedly connected to the limit end 27. The bushing 23 and the locking sleeve 26 are respectively provided with interlocking grooves 29 at one end. A spherical cavity 33 is provided at the bottom of the outer periphery of a set of threaded sleeves 9. A damping pad 34 is fixedly installed on the inner side of the spherical cavity 33. A spherical mechanism 35 is snapped into the inside of the damping pad 34. One end of the second connecting shaft 30 is fixedly installed on the surface of the spherical mechanism 35. A placement frame 31 is fixedly installed on the other end of the second connecting shaft 30. That is, the surface of the spherical mechanism 35 is mounted with a placement frame 31 through the second connecting shaft 30. The placement frame 31 has a C-shaped structure and a placement slot 32 is provided on the inner side of the placement frame 31.

[0023] Furthermore, when the positioning screw 10 inside the screw sleeve 9 is rotated by the adjustment end 11, the first protective pad 12 at one end of the two sets of positioning screws 10 clamps and fixes the patient's head on both sides.

[0024] Furthermore, the limiting rod 14 and the limiting hole 13 are in an interference fit. When the adjustable screw 17 inside the rotating adjusting screw hole 15 is rotated, the movement of the adjustable screw 17 drives the hanging seat 8 to move up and down, which in turn drives the positioning screw 10 inside the screw sleeve 9 to move up and down.

[0025] Furthermore, the second protective pad 25 itself has deformation characteristics, and the movable plate 24 is rotatably adjustable relative to the first connecting shaft 22 via the bushing 23.

[0026] Furthermore, when the engagement pattern 29 at one end of the locking sleeve 26 and the engagement pattern 29 at one end of the bushing 23 are engaged and matched, the locking sleeve 26 is in a limiting and locking state on the bushing 23.

[0027] Furthermore, the second connecting shaft 30 above the placement frame 31 is located inside the damping pad 34 via the spherical mechanism 35 and is in a damped rotation adjustable state. When the placement frame 31 at the bottom of the second connecting shaft 30 is adjusted to any angle and stationary by the rotation of the spherical mechanism 35 inside the damping pad 34, the placement frame 31 is fixed by the frictional engagement of the damping pad 34 with the spherical mechanism 35.

[0028] The working principle of this utility model: The patient can sit and support themselves using the backrest 18 and seat 19. The adjustable screw 17 inside the adjusting screw hole 15 can be manually rotated. The movement of the adjustable screw 17 causes the hanging seat 8 to move downwards, bringing the hanging seat 8 at the bottom of the adjusting platform 3 into contact with the area above the patient's head. The positioning screw 10 inside the adjusting screw sleeve 9 is rotated via the adjusting end 11, causing the first protective pads 12 at the corresponding ends of the two sets of positioning screws 10 to fit and clamp the sides of the patient's head above the ears, away from the mandible. Then, by pulling the locking sleeve 26 outside the first connecting shaft 22 away from the shaft sleeve 23, the movable adjusting plate 24 is tilted downwards, allowing the movable... The second protective pad 25 at the bottom of the movable plate 24 fits and supports the patient's head between the eyebrows. The locking sleeve 26 is released so that the locking sleeve 26 and the bushing 23 fit together and lock through the interlocking pattern 29, ensuring the stability of the movable plate 24. In this way, the positioning screw shaft 10 and the movable plate 24 can provide wrap-around support and fixation for the upper part of the patient's head, ensuring the stability of the patient's head. The patient sits and leans against the backrest 18 and the seat 19, further ensuring the stability of the patient. Then, the 3D scanning component 6 scans the patient's head, and the light projection component 7 projects the body surface points onto the CT model to achieve precise positioning of the fracture site.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A surface projection positioning device for a jaw fracture, comprising a base (1) and an adjustment platform (3), wherein a support column (2) with threads on its surface is fixedly installed on the top of the base (1), a threaded sleeve threadedly connected to the support column (2) is fixedly installed on the adjustment platform (3), and a support plate (5) is fixedly connected to one side of the edge of the adjustment platform (3) via a first connector (4), and a 3D scanning component (6) and a light projection component (7) are fixedly connected to the surface of the support plate (5), characterized in that: The bottom of the adjusting platform (3) is provided with a hanging seat (8), the bottom of the hanging seat (8) is integrally formed with two groups of screw sleeves (9), the screw sleeves (9) are internally threadedly connected with positioning screw shafts (10), one end of the positioning screw shafts (10) is fixedly connected with an adjusting end (11), the other end of the positioning screw shafts (10) is fixedly provided with first protective pads (12), the inside of the adjusting platform (3) is provided with a limiting hole (13) and a screw hole (15) on the two sides respectively, the top of the hanging seat (8) is fixedly connected with a limiting rod (14) on one side, the other side of the top of the hanging seat (8) is provided with a mounting hole (16), the inside of the mounting hole (16) is rotatably connected with an adjustable screw shaft (17) which is threadedly connected with the inside of the screw hole (15), the top of the base (1) is fixedly installed with a backboard (18), the backboard (18) is installed with a seat plate (19) for the patient to sit on.

2. The device according to claim 1, wherein: When the positioning screw shafts (10) inside the screw sleeves (9) are controlled to rotate through the adjusting end (11), the first protective pads (12) at one end of the two groups of positioning screw shafts (10) are in a clamping and positioning fixed state on the two sides of the head of the patient.

3. A device for locating the surface projection of a fracture of a jawbone according to claim 2, characterized in that: The limiting rod (14) and the limiting hole (13) are in an interference limiting fit, when the adjustable screw shaft (17) inside the screw hole (15) is adjusted to rotate, the adjustable screw shaft (17) drives the positioning screw shafts (10) inside the screw sleeves (9) to be adjusted up and down through the hanging seat (8).

4. The device of claim 1, wherein: The top of the adjusting platform (3) is fixedly installed with a supporting mechanism (20), one side of the supporting mechanism (20) is fixedly connected with a second connecting piece (21), one side of the second connecting piece (21) is fixedly connected with a first connecting shaft (22), the outside of the first connecting shaft (22) is rotatably sleeved with a shaft sleeve (23), the outside of the shaft sleeve (23) is fixedly connected with a movable plate (24), the bottom of the movable plate (24) is fixedly provided with a second protective pad (25).

5. A device for locating the surface projection of a jaw fracture according to claim 4, wherein: The second protective pad (25) has a deformation characteristic, the movable plate (24) is rotatably adjusted relative to the outside of the first connecting shaft (22) through the shaft sleeve (23).

6. A device for locating the surface projection of a jaw fracture according to claim 5, wherein: The outside of the first connecting shaft (22) is slidably sleeved with a locking sleeve (26), one end of the first connecting shaft (22) is fixedly connected with a limiting end (27), the outside of the first connecting shaft (22) is sleeved with a spring (28), one end of the spring (28) is fixedly connected with the locking sleeve (26) and the other end is fixedly connected with the limiting end (27), the shaft sleeve (23) and the locking sleeve (26) are both provided with intermeshing engagement grooves (29) at one end.

7. A device for locating the surface projection of a jaw fracture according to claim 6, wherein: When the engagement grooves (29) at one end of the locking sleeve (26) and the engagement grooves (29) at one end of the shaft sleeve (23) are mutually butted and engaged, the locking sleeve (26) is in a limiting and locking state relative to the shaft sleeve (23).

8. The device of claim 2, wherein: Among them, the outer peripheral bottom position of one group of the screw sleeve (9) is provided with a spherical cavity (33), the inner side of the spherical cavity (33) is provided with a damping pad (34), the inside of the damping pad (34) is clamped with a spherical mechanism (35), one end of a second connecting shaft (30) is fixedly installed on the surface of the spherical mechanism (35), the other end of the second connecting shaft (30) is fixedly installed with a placing frame (31), the placing frame (31) is a C-shaped structure, and the inner side of the placing frame (31) is provided with a placing clamping groove (32).

9. A device for locating the surface projection of a jaw fracture according to claim 8, wherein: The second connecting shaft (30) above the placing frame (31) is in a damping rotating adjustable state in the inner side of the damping pad (34) through the spherical mechanism (35).

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