Integrated titanium plate assembly for assisting in traction of in-plane bone seam distraction external stent
By designing an integrated titanium plate assembly, the problems of weak bone walls and improper fixation during the suture traction process in patients with midface hypoplasia were solved, achieving effective traction of bones in multiple facets and improving the success rate of surgery and patient recovery.
Patent Information
- Application Number
- CN202422648066.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Existing techniques for treating patients with midfacial hypoplasia present problems such as thin bone walls, uneven traction, long operation time, and easy damage to tooth roots due to improper fixation during the bone suture distraction process, resulting in unsatisfactory treatment outcomes.
An integrated titanium plate assembly for traction of the sutures in the auxiliary plane is designed. It is fixedly connected to the bone at the target location through the first and second fixation plates. Combined with the arc-shaped connector, it can achieve effective traction of the bone in multiple planes and avoid the titanium plate not fitting the bone surface and the randomness of the fixation position.
It achieves effective traction of the skeleton in multiple planes, reduces surgical trauma, improves the success rate of surgery, avoids secondary damage caused by improper fixation, and simplifies the surgical procedure.
Smart Images
Figure CN223695982U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to implant medical instrument technical field, especially relate to a kind of integrated titanium plate assembly of auxiliary midfacial suture distraction external support traction. BACKGROUND
[0002] Midfacial dysplasia is a common developmental deformity of craniofacial region, and is most commonly seen in patients with congenital cleft lip and palate. Its main manifestations are skeletal class III malocclusion, accompanied by flattening or even depression of the paranasal, infraorbital and zygomatic regions. It is a developmental failure in three-dimensional direction of midfacial bones, often accompanied by upper arch constriction, crowded and disordered dentition, tooth loss, and mandibular true or false overgrowth. Midfacial depression occurs in young patients and worsens with growth and development, affecting speech and masticatory function, and even causing psychological barriers, affecting physical and mental health. This deformity lacks effective early treatment, and the main intervention measures in the past are orthodontic facebow traction and orthognathic surgery. However, the effect of orthodontic facebow traction is limited, and the traction device is difficult to fix in the mouth of patients in the deciduous or replacement tooth period, which can easily cause loss of anterior tooth anchorage, and about 25% of patients still need surgical treatment. It is generally believed that orthognathic surgery can only be performed after the patient reaches adulthood, completely missing the progression period of the disease and allowing the deformity to develop. Midfacial suture distraction involves placing traction hooks in the patient's maxilla through surgery, and applying traction force to the entire midfacial bone through the strong anchorage of the external support, promoting bone growth and ultimately achieving treatment of midfacial dysplasia. There have been a few reports of successful application of this technology internationally, and satisfactory clinical results have been achieved.
[0003] However, due to the patient's young age and thin bone wall, only the bone block near the traction hook moves forward during the traction process, and other bone blocks in the midfacial region do not move forward or move forward with little effect, resulting in unsatisfactory postoperative results. UTILITY MODEL CONTENT
[0004] To solve the above problems, the utility model provides an integrated titanium plate assembly for auxiliary midfacial suture distraction external support traction, which provides an integrated titanium plate assembly for auxiliary midfacial suture distraction external support traction, and connects the traction hook and the traction hook fixing part of the external midfacial suture distraction external support through the first fixing plate and the second fixing plate, so as to achieve effective traction of multiple midfacial bones.
[0005] The technical solution of this utility model is as follows: an integrated titanium plate assembly for traction of an auxiliary midface suture tensioning external support, comprising: a first fixing plate, wherein the first fixing plate is provided with a first traction hook fixing part for detachable connection with the first traction hook of the midface suture tensioning external support; a second fixing plate, wherein the second fixing plate is provided with a second traction hook fixing part for detachable connection with the second traction hook of the midface suture tensioning external support; and a connecting member, the two ends of which are respectively connected to the first fixing plate and the second fixing plate, wherein in use, the first fixing plate and the second fixing plate are respectively fixed to the target position by titanium nails.
[0006] Preferably, the first traction hook fixing part includes two traction hook connecting holes, and the second traction hook fixing part includes two traction hook connecting holes. The two traction hook connecting holes are arranged along the length extension direction of the first fixing piece or the second fixing piece. In use, the first traction hook and the second traction hook can be hooked together.
[0007] Preferably, the connector is a rod, and the rod is arc-shaped so that the first fixing plate and the second fixing plate respectively engage with the bone at the target position.
[0008] Preferably, the first fixing plate and the second fixing plate are provided with a plurality of fixing holes, which are located at two ends of the first fixing plate and the second fixing plate along the length direction, and the titanium nail is fixed to the target position through the plurality of fixing holes.
[0009] Preferably, the first fixing piece has two fixing holes at its first end and three fixing holes at its second end. The second fixing piece has two fixing holes at its first end and three fixing holes at its second end. In use, the two fixing holes at the first end of the first fixing piece are fixed to the zygomatic alveolar ridge, and the three fixing holes at the second end of the first fixing piece are fixed to the piriform foramen.
[0010] Preferably, the first traction hook fixing part is located between the fixing holes at both ends of the first fixing piece and near the second end, and the second traction hook fixing part is located between the fixing holes at both ends of the second fixing piece and near the second end.
[0011] Preferably, the arrangement direction of the two fixing holes at the first end of the first fixing piece is at a certain angle to the length extension direction of the first fixing piece, the arrangement direction of the three fixing holes at the second end of the first fixing piece is at a certain angle to the length extension direction of the first fixing piece, the arrangement direction of the two fixing holes at the first end of the second fixing piece is at a certain angle to the length extension direction of the second fixing piece, and the arrangement direction of the three fixing holes at the second end of the second fixing piece is at a certain angle to the length extension direction of the second fixing piece.
[0012] Preferably, it further includes a first pre-fixation plate and a second pre-fixation plate, the two ends of the first pre-fixation plate and the second pre-fixation plate being respectively adapted to engage with the piriform foramen and the zygomatic alveolar ridge, and the first pre-fixation plate and the second pre-fixation plate being provided with a plurality of positioning through holes corresponding to a plurality of fixing holes on the first fixing piece and the second fixing piece.
[0013] Preferably, the diameter of the fixing hole is 2-2.2 mm, and the first traction hook fixing part and the second traction hook fixing part are traction hook connection holes with a diameter of 1.4-1.6 mm.
[0014] Preferably, the thickness of the first fixing piece and the second fixing piece is 0.8-0.9 mm.
[0015] The technical effects of adopting the technical solution of this application are as follows:
[0016] This utility model provides an integrated titanium plate assembly for traction of the suture traction external support in the auxiliary surface. The first and second fixing plates are fixedly connected to the bone at the target position, and the traction hook of the suture traction external support in the external surface is connected to the traction hook fixing part, thereby realizing effective traction of the bone in multiple surfaces. Attached Figure Description
[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:
[0018] Figure 1 This is a structural diagram of the integrated titanium plate assembly for the auxiliary surface suture tensioning external support of this utility model;
[0019] Figure 2 This is a schematic diagram of the integrated titanium plate assembly for traction of the suture traction external support in the auxiliary surface of this utility model.
[0020] Figure 3 This is a schematic diagram of the suture tensioning external support structure in the existing technology.
[0021] Figure 4 A schematic diagram showing the placement of the first and second pre-fixed plates;
[0022] Figure 5This is a schematic diagram of the first pre-fixed plate and the second pre-fixed plate.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1: First fixing plate; 2: Second fixing plate; 3: Rod; 4: Towing hook connection hole; 5: Fixing hole; 6: Towing hook; 7: First pre-fixing plate; 8: First pre-fixing plate. Detailed Implementation
[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise ratios, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.
[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0027] Sutures are special structures in the craniofacial bones. As the name suggests, sutures are the gaps connecting bones. Within these gaps, there is fibrous tissue connecting the bones, with the periosteum on both sides, and the junctions also contain loose tissue, abundant blood vessels, and a large number of suture mesenchymal stem cells. Sutures play an active role in the early growth and development of the craniofacial region. Whether it is the mechanical stimulation of the skull caused by brain growth or the mechanical stimulation of facial soft tissue stretching, both ultimately cause the cranial and facial sutures to grow actively, thus promoting the growth and development of the craniofacial skeleton. It is this characteristic that lays the biological foundation for suture stretching to promote bone growth and displacement. In orthodontics, maxillary traction and midpalatal suture expansion have long been mature techniques used in clinical practice. However, the main purpose of orthodontic traction is mostly tooth displacement, and current technology and intraoral limitations make it difficult to support the establishment of sufficiently strong anchorage, resulting in only a small amount of bone growth and displacement. Suture distraction for treating midfacial hypoplasia is essentially similar in principle to bone traction involved in orthodontics, and can be seen as a further development of orthodontic maxillary anterior traction. In the past, for severe midfacial deformities like midfacial hypoplasia, after unsuccessful attempts at orthodontic traction, there were no effective treatments available, and patients had to wait for orthognathic surgery in adulthood. This created a treatment vacuum, causing psychological torment and anxiety for patients and their families. The emergence of suture distraction has effectively filled this gap, bringing new hope to patients with midfacial hypoplasia.
[0028] Bone suture traction is minimally invasive, highly effective, and suitable for children in their growth and development period, making it an ideal early treatment method for midfacial hypoplasia.
[0029] Example
[0030] To address the issue of bone wall weakness during traction, a titanium plate is bent during surgery, and traction pins are hooked onto the titanium plate to increase bone wall rigidity.
[0031] However, the following problems exist:
[0032] 1. If the bent titanium plate does not fit properly against the patient's bone surface during the operation, uneven force will be applied, affecting the outcome.
[0033] 2. The titanium plate fixation position is relatively arbitrary, and it is impossible to predict the reasonable traction center in advance, which affects the surgical outcome.
[0034] 3. The process of bending titanium plates takes time, which prolongs the operation time and increases patient trauma.
[0035] 4. The position of the titanium plate may need to be changed repeatedly during the fixation process. If it is not fixed properly, it may damage the tooth root and increase the trauma to the patient.
[0036] 5. During the fixation process, the surgeon relies on their sense of touch to find the harder parts of the bone wall. However, some weak points in the bone wall cannot be detected by the naked eye, which can affect the surgical outcome.
[0037] 6. The outcome of the simulated surgery cannot be predicted.
[0038] The technical solution of this utility model is as follows: an integrated titanium plate assembly for traction of an auxiliary midface suture tensioning external support, comprising: a first fixing plate 1, wherein the first fixing plate 1 is provided with a first traction hook fixing part for detachable connection with the first traction hook of the midface suture tensioning external support; a second fixing plate 2, wherein the second fixing plate 2 is provided with a second traction hook fixing part for detachable connection with the second traction hook of the midface suture tensioning external support; and a connecting member, the two ends of which are respectively connected to the first fixing plate 1 and the second fixing plate 2. In use, the first fixing plate 1 and the second fixing plate 2 are respectively fixed to the target position by titanium nails.
[0039] The technical solution of this embodiment provides an integrated titanium plate assembly for traction of the suture traction external support in the auxiliary surface. The first fixing plate 1 and the second fixing plate 2 are fixedly connected to the bone at the target position. The traction hook 6 of the suture traction external support in the external surface is connected to the traction hook fixing part, thereby enabling effective traction of the bone in multiple surfaces.
[0040] Preferably, the first traction hook fixing part includes two traction hook connecting holes 4, and the second traction hook fixing part includes two traction hook connecting holes 4. The two traction hook connecting holes 4 are arranged along the length extension direction of the first fixing piece 1 or the second fixing piece 2. In use, the first traction hook and the second traction hook can be hooked together.
[0041] The technical solution of this embodiment provides two traction hook connection holes 4 arranged along the length extension direction of the fixing plate for each traction hook fixing part, which can provide the operator with a certain degree of flexibility during operation. According to the actual situation of the patient and the adjustment goal, the appropriate traction hook connection hole 4 can be selected to connect with the traction hook 6.
[0042] Preferably, the connector is a rod 3, which is arc-shaped so that the first fixing piece 1 and the second fixing piece 2 respectively engage with the bone at the target position.
[0043] In this embodiment, by configuring the arc-shaped rod 3, the first fixing plate 1 and the second fixing plate 2 are respectively matched with the bone at the target position.
[0044] Preferably, the first fixing plate 1 and the second fixing plate 2 are provided with a plurality of fixing holes 5, which are located at two ends of the first fixing plate 1 and the second fixing plate 2 along the length direction, and the titanium nail is fixed to the target position through the plurality of fixing holes 5.
[0045] In this embodiment, fixing holes 5 are provided at both ends of the fixing plate to facilitate a stable and effective connection between the fixing plate and the facial skeleton.
[0046] Preferably, the first fixing piece 1 has two fixing holes 5 at its first end and three fixing holes 5 at its second end; the second fixing piece 2 has two fixing holes 5 at its first end and three fixing holes 5 at its second end. In use, the two fixing holes 5 at the first end of the first fixing piece 1 are fixed to the zygomatic alveolar ridge, the three fixing holes 5 at the second end of the first fixing piece 1 are fixed to the piriform foramen, the two fixing holes 5 at the first end of the second fixing piece 2 are fixed to the zygomatic alveolar ridge, and the three fixing holes 5 at the second end of the second fixing piece 2 are fixed to the piriform foramen.
[0047] The technical solution of this embodiment enables the fixation plate to be fixed to the patient's bone with high hardness, avoiding secondary damage and improving the success rate of the operation.
[0048] Preferably, the first traction hook fixing part is located between the fixing holes 5 at the two ends of the first fixing piece 1 and close to the second end, and the second traction hook fixing part is located between the fixing holes 5 at the two ends of the second fixing piece 2 and close to the second end.
[0049] In this embodiment, the traction hook fixing part is set near the second end of the fixing plate, which can obtain a better mechanical traction effect.
[0050] Preferably, the arrangement direction of the two fixing holes 5 at the first end of the first fixing piece 1 is at a certain angle to the length extension direction of the first fixing piece 1, the arrangement direction of the three fixing holes 5 at the second end of the first fixing piece 1 is at a certain angle to the length extension direction of the first fixing piece 1, the arrangement direction of the two fixing holes 5 at the first end of the second fixing piece 2 is at a certain angle to the length extension direction of the second fixing piece 2, and the arrangement direction of the three fixing holes 5 at the second end of the second fixing piece 2 is at a certain angle to the length extension direction of the second fixing piece 2.
[0051] In this embodiment, in order to obtain better fixing effect and traction mechanical performance, the arrangement direction of fixing holes 5 is set at a certain angle with the length extension direction of fixing piece, so that the fixing is stable and a better mechanical traction effect can be obtained.
[0052] Preferably, it also includes a first pre-fixing plate 7 and a second pre-fixing plate 8. The two ends of the first pre-fixing plate 7 and the second pre-fixing plate 8 are respectively adapted to engage with the piriform foramen and the zygomatic alveolar ridge. The first pre-fixing plate 7 and the second pre-fixing plate 8 are provided with a plurality of positioning through holes corresponding to the plurality of fixing holes on the first fixing piece 1 and the second fixing piece 2.
[0053] The integrated titanium plate assembly for the suture traction external support in the auxiliary surface of this embodiment further includes a first pre-fixation plate 7 and a second pre-fixation plate 8. Before fixing the integrated fixation piece (including the first fixation piece 1, the second fixation piece 2, and the rod 3) to the patient's bone, the first pre-fixation plate 7 and the second pre-fixation plate 8 are first fixed to the patient's bone, with their ends respectively suitable for engaging with the piriform foramen and the zygomatic alveolar ridge. They are then pre-fixed to the patient's bone through the positioning through-holes. The first pre-fixation plate 7 and the second pre-fixation plate 8 are then removed, and the integrated fixation piece is placed according to the pre-fixed position and fixed to the bone through multiple fixation holes, thereby preventing the problem of positional deviation that can easily occur when directly fixing with the integrated fixation piece. Preferably, the diameter of the fixation hole 5 is 2-2.2 mm, and the first traction hook fixing part and the second traction hook fixing part are traction hook connection holes 4 with a diameter of 1.4-1.6 mm.
[0054] This embodiment takes into account better application to adolescents and children in the developmental stage, and adopts the above-mentioned technical parameters to better suit the patients.
[0055] Preferably, the shapes of the first fixing piece 1 and the second fixing piece 2 match the shape of the bone at the target installation location.
[0056] Setting the shapes of the first fixation piece 1 and the second fixation piece 2 to match the shape of the bone at the target installation location is beneficial for the patient's later recovery.
[0057] Preferably, the thickness of the first fixing piece 1 and the second fixing piece 2 is 0.8-0.9 mm.
[0058] This embodiment takes into account better application to adolescents and children in the developmental stage, and adopts the above-mentioned technical parameters to better suit the patients.
[0059] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for 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 application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0060] It should also be noted that, unless otherwise explicitly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0061] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific identification content executed by the system and device described above can be referred to the corresponding process in the foregoing method embodiments.
[0062] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.
Claims
1. An integrated titanium plate assembly for traction of the suture zone in an auxiliary surface, characterized in that, include: The first fixation plate is provided with a first traction hook fixing part for detachable connection with the first traction hook of the midface suture tensioning external support; The second fixation plate is provided with a second traction hook fixing part for detachable connection with the second traction hook of the midface suture tensioning external support; The connector is connected to the first fixing piece and the second fixing piece at both ends, respectively. In use, the first fixing piece and the second fixing piece are fixed to the target position by titanium nails.
2. The integrated titanium plate assembly for traction of the suture traction external support in the auxiliary surface as described in claim 1, characterized in that, The first traction hook fixing part includes two traction hook connecting holes, and the second traction hook fixing part includes two traction hook connecting holes. The two traction hook connecting holes are arranged along the length extension direction of the first fixing piece or the second fixing piece. In use, the first traction hook and the second traction hook can be hooked together.
3. The integrated titanium plate assembly for traction of the suture traction external support in the auxiliary surface as described in claim 1, characterized in that, The connector is a rod, and the rod is arc-shaped so that the first fixing plate and the second fixing plate respectively engage with the bone at the target position.
4. The integrated titanium plate assembly for traction of the suture traction external support in the auxiliary surface according to claim 1, characterized in that, The first fixing plate and the second fixing plate are provided with a plurality of fixing holes, which are located at two ends of the first fixing plate and the second fixing plate along the length direction. The titanium nail is fixed to the target position through the plurality of fixing holes.
5. The integrated titanium plate assembly for traction of the suture traction external support in the auxiliary surface according to claim 4, characterized in that, The first fixing piece has two fixing holes at its first end and three fixing holes at its second end. The second fixing piece has two fixing holes at its first end and three fixing holes at its second end. In use, the two fixing holes at the first end of the first fixing piece are fixed to the zygomatic alveolar ridge, and the three fixing holes at the second end of the first fixing piece are fixed to the piriform foramen.
6. The integrated titanium plate assembly for traction of the suture traction external support in the auxiliary surface according to claim 5, characterized in that, The first traction hook fixing part is located between the fixing holes at both ends of the first fixing piece and near the second end, and the second traction hook fixing part is located between the fixing holes at both ends of the second fixing piece and near the second end.
7. The integrated titanium plate assembly for traction of the suture traction external support in the auxiliary surface according to claim 6, characterized in that, The two fixing holes at the first end of the first fixing piece are arranged at a certain angle to the length extension direction of the first fixing piece. The three fixing holes at the second end of the first fixing piece are arranged at a certain angle to the length extension direction of the first fixing piece. The two fixing holes at the first end of the second fixing piece are arranged at a certain angle to the length extension direction of the second fixing piece. The three fixing holes at the second end of the second fixing piece are arranged at a certain angle to the length extension direction of the second fixing piece.
8. The integrated titanium plate assembly for traction of the suture traction external support in the auxiliary surface according to claim 4, characterized in that, It also includes a first pre-fixation plate and a second pre-fixation plate. The two ends of the first pre-fixation plate and the second pre-fixation plate are respectively adapted to engage with the piriform foramen and the zygomatic alveolar ridge. The first pre-fixation plate and the second pre-fixation plate are provided with multiple positioning through holes corresponding to multiple fixing holes on the first fixing piece and the second fixing piece.
9. The integrated titanium plate assembly for traction of the suture traction external support in the auxiliary surface according to claim 4, characterized in that, The diameter of the fixing hole is 2-2.2 mm, and the first traction hook fixing part and the second traction hook fixing part are traction hook connection holes with a diameter of 1.4-1.6 mm.
10. The integrated titanium plate assembly for traction of the suture traction external support in the auxiliary surface according to claim 1, characterized in that, The thickness of the first fixing piece and the second fixing piece is 0.8-0.9 mm.