Correcting device based on funnel chest

Abstract

The utility model relates to the technical field of medical instruments, in particular to a funnel chest-based correction device, which comprises a strip-shaped correction main body, the two groups of fixing units are symmetrically arranged at the end parts of the correction main body respectively and are used for being connected with ribs of a human body; wherein any fixing unit has two postures, namely a first posture and a second posture, and any fixing unit can be freely switched between the first posture and the second posture; according to the correcting device, the fixing unit is rotatably arranged on the correcting body, when the fixing unit needs to be properly adjusted according to specific application scenes, force perpendicular to the axis of the fixing column is applied to the fixing column, then torque is generated, the fixing plate is driven to rotate, and through the rotation action of the fixing plate, the correcting effect is achieved. The function of adjusting the fixing unit is achieved. Therefore, the risk of expanding the incision of the patient in the implanting process of the correction device is reduced, and the difficulty of fixation between the fixing unit and the ribs of the human body is reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a corrective device for pectus excavatum. Background Technology

[0002] Pectus excavatum is a congenital chest deformity characterized by a sunken sternum, resulting in an abnormal chest shape. It is common in children and adolescents and severely affects a patient's appearance and cardiopulmonary function. Surgical correction is the primary treatment for pectus excavatum.

[0003] Currently, existing implants for surgical correction of pectus excavatum mainly consist of an arc-shaped plate and fixators located at both ends of the arc-shaped plate, forming a cross-shaped structure with the ends of the plate. The arc-shaped plate primarily supports the sunken sternum and ribs, thereby correcting the deformity of pectus excavatum. One end of the fixator is fixedly connected to the arc-shaped plate, while the other end is connected to the ribs of the patient, ensuring the stability of the arc-shaped plate after surgery and preventing its displacement.

[0004] While this pectus excavatum implant can correct pectus excavatum, the fixed cross-shaped structure at the connection between the curved plate and the fixator poses a risk of widening the patient's incision during surgery. It also presents difficulties in fixing the fixator to the ribs. The main reason is that existing pectus excavatum implants use a fixed cross-shaped connection, and patients' ribs vary depending on age, height, and gender. The fixator's structure prevents adjustments for specific application scenarios, thus causing fixation difficulties. Utility Model Content

[0005] The purpose of this invention is to provide a corrective device for pectus excavatum to solve the problems mentioned in the background art.

[0006] The technical solution adopted in this utility model is:

[0007] A corrective device for pectus excavatum, comprising:

[0008] The orthodontic body is strip-shaped;

[0009] Two sets of fixing units are symmetrically arranged at the ends of the corrective body for connection with the ribs of the human body;

[0010] in,

[0011] Each of the fixed units has two postures, namely a first posture and a second posture, and each of the fixed units can switch freely between the first posture and the second posture;

[0012] The first posture is that the fixing unit is in a position perpendicular to the length direction of the correction body;

[0013] The second posture is that the fixing unit is in a position parallel to the length direction of the correction body.

[0014] Optionally, any of the fixing units includes:

[0015] The length of the fixing plate is greater than the width of the correction body;

[0016] A fixing column is installed on the fixing plate.

[0017] Optionally,

[0018] The first posture is when the length direction of the fixing plate is perpendicular to the length direction of the correction body.

[0019] The second posture is when the length direction of the fixing plate is parallel to the length direction of the correction body.

[0020] Optionally, the fixing plate includes:

[0021] The middle plate is attached to one side of the corrective body;

[0022] A connecting plate is disposed on both sides of the intermediate plate, and at least one connecting hole is provided thereon.

[0023] Optionally, the fixing post includes:

[0024] A column is disposed on the intermediate plate, the column passing through the orthodontic body and being rotatably connected to the orthodontic body;

[0025] A locking plate is integrally formed and disposed at the end of the column away from the intermediate plate, and the locking plate is attached to the side of the correction body away from the intermediate plate.

[0026] Optionally,

[0027] The corrective body is provided with traction holes and fixing holes;

[0028] The traction hole is used to thread the traction line;

[0029] The fixing holes are matched with the fixing units, and their quantities correspond one-to-one.

[0030] Optionally, the column adopts a quadrangular prism structure, and the four edges are respectively attached to the inner wall surface of the fixing hole.

[0031] Optionally, the width of the corrective body is between 1 cm and 1.5 cm, and the thickness is between 5 mm and 15 mm.

[0032] Optionally, the corrective body and the fixing unit are made of stainless steel or titanium alloy.

[0033] Optionally, the fixing unit is detachably rotatably connected to the end of the orthodontic body.

[0034] Compared with the prior art, the beneficial effects of this utility model are:

[0035] In this invention, the fixing unit is rotatably mounted on the orthodontic body. When the fixing unit needs to be adjusted according to the specific application scenario, a force perpendicular to the axis of the fixing column is applied to the fixing post, thereby generating a torque that drives the fixing plate to rotate. The rotation of the fixing plate achieves the adjustment function of the fixing unit. This reduces the risk of widening the patient's incision during implantation and reduces the difficulty of fixing the fixing unit to the ribs. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the overall structure of this application;

[0038] Figure 2 This is a schematic diagram of the structure of this application in its first orientation;

[0039] Figure 3 This is a schematic diagram of the structure of this application in its second orientation;

[0040] Figure 4 This is a schematic diagram of the structure of the corrective body in this application;

[0041] Figure 5 This is a schematic diagram of the structure of the fixed unit in this application.

[0042] Figure label:

[0043] 1. Correction body; 11. Traction hole; 12. Fixing hole;

[0044] 2. Fixed unit;

[0045] 21. Fixing plate; 211. Intermediate plate; 212. Connecting plate; 2121. Connecting hole;

[0046] 22. Fixed column; 221. Column body; 222. Locking plate. Detailed Implementation

[0047] Given that current pectus excavatum implants not only pose the risk of widening the patient's incision, but also present difficulties in fixing the fixator to the ribs, it is problematic to address these issues.

[0048] like Figure 1-5 As shown, this utility model embodiment provides a correction device for pectus excavatum, including: a strip-shaped correction body 1 and a fixing unit 2 symmetrically arranged at the end of the correction body 1 and connected to the ribs of the human body.

[0049] The corrective body 1 is configured to support the sunken sternum and ribs, thereby correcting the deformity of pectus excavatum; the fixation unit 2 is configured to ensure the stability of the corrective body 1 after surgery and prevent the corrective body 1 from moving.

[0050] Each fixing unit 2 has two postures, namely a first posture and a second posture. Each fixing unit 2 can switch freely between the first posture and the second posture. Through the switching action of the fixing unit 2 between the first posture and the second posture, the fixing unit 2 has the function of making appropriate adjustments according to the specific application scenario, thereby reducing the risk of the corrective device expanding the patient's incision during the implantation process and making it easier to fix the fixing unit 2 to the human rib.

[0051] Specifically, any fixing unit 2 includes: a fixing plate 21 and a fixing post 22 disposed on the fixing plate 21. The length of the fixing plate 21 is greater than the width of the correction body 1, and the fixing plate 21 is connected to the ribs of the human body; the fixing post 22 is rotatably connected to the correction body 1.

[0052] A force perpendicular to the axis of the fixed column 22 is applied to the fixed column 22, thereby generating a torque that drives the fixed plate 21 to rotate. When the length direction of the fixed plate 21 rotates to a position perpendicular to the length direction of the straightening body 1, the fixed unit 2 is in the first posture; when the length direction of the fixed plate 21 rotates to a position parallel to the length direction of the straightening body 1, the fixed unit 2 is in the second posture.

[0053] like Figure 5As shown, the fixing plate 21 includes a middle plate 211 and connecting plates 212 located on both sides of the middle plate 211. The middle plate 211 is fitted against one side of the correction body 1. The connecting plates 212 are integrally formed with the middle plate 211, and the size of the connecting plates 212 gradually decreases in the direction away from the middle plate 211. At least one connecting hole 2121 is provided on the connecting plate 2121. The connecting hole 2121 connects to an external connector (not shown in the figure), and the fixing plate 21 is fixed to the ribs of the human body through the mutual cooperation between the connecting hole 2121 and the external connector.

[0054] The fixed column 22 includes several parts such as the column body 221 and the locking plate 222.

[0055] The column 221 is mounted on the intermediate plate 211 and is rotatably connected to the correction body 1 through it. The locking plate 222 is integrally formed and mounted on the end of the column 221 away from the intermediate plate 211. The locking plate 222 is attached to the side of the correction body 1 away from the intermediate plate 211.

[0056] like Figure 4 As shown, a traction hole 11 is provided near the end of the corrective body 1. The traction hole 11 is used to thread a traction wire (not shown in the figure). With the cooperation of the traction hole 11 and the traction wire, the corrective body 1 is pulled to a suitable position in the patient's body. Fixing holes 12 are also provided symmetrically at the ends of the corrective body 1. The column 221 passes through the fixing holes 12, thereby connecting the fixing unit 2 and the corrective body 1. The number of fixing holes 12 corresponds one-to-one with the number of fixing units 2.

[0057] In this embodiment, the width of the corrective body 1 is approximately between 1 cm and 1.5 cm, and the thickness is approximately between 5 mm and 15 mm. Its shape can be any kind, such as an arc shape or a straight shape that matches the curvature of the patient's anterior chest wall, or other shapes, as long as the corrective body 1 can support the sunken sternum and ribs to achieve the purpose of correcting pectus excavatum.

[0058] Furthermore, in order to reduce the number of relative slidings between the fixing unit 2 and the correction body 1, the column 221 in this embodiment adopts a quadrangular prism structure, and the four edges are respectively attached to the inner wall surface of the fixing hole 12.

[0059] In use, first, select a suitable corrective body 1 according to the patient's anterior chest wall curvature. Then, make an incision of 1.5 cm to 2 cm in length at an appropriate location. Tighten the fixing post 22, and the fixing plate 21 will rotate under the action of the fixing post 22. By rotating, the length direction of the fixing plate 21 is aligned with the length direction of the corrective body 1 on the same axis (to avoid widening the patient's incision during implantation). Its specific structure is as follows: Figure 3As shown. The corrective body 1, under the influence of the traction suture, is inserted through the incision behind the patient's deformed sternum to push out the sunken sternum and deformed costal cartilage. The corrective body 1 is rotated to the appropriate position, thereby raising the deformed sternum to the desired position. Then, the fixation post 22 is screwed on again, and the fixation plate 21 rotates again under the influence of the fixation post 22. The position of the fixation plate 21 is adjusted by rotation (specific structure as shown). Figure 2 As shown), until the fixation plate 21 is in the optimal position (the fixation plate 21 and the ribs of the human body are in the best fit), the orthopedic body 1 is finally fixed to the ribs of the patient's body through the cooperation of the connecting hole 2121 and the external connector. Depending on the patient's age and condition, the orthopedic device will remain in the patient's body for 2 to 4 years, and then be removed after the sternum shape has been fixed.

[0060] In this embodiment, the material of the correction body 1 can be selected from materials known in the art, such as stainless steel, titanium alloy, etc.; the material of the fixing unit 2 can be the same as or different from the material of the correction body 1, and can be selected from materials known in the art, such as stainless steel, titanium alloy, etc.

[0061] In another embodiment, the fixing unit 2 can also be detachably rotatably connected to the end of the correction body 1.

[0062] Specifically, such as Figure 4 As shown, the shape of the fixing hole 12 is adapted to the shape of the fixing post 22. The length of the fixing hole 12 is greater than the length of the locking plate 222, and the width of the fixing hole 12 is less than the length of the locking plate 222. This means that the locking plate 222 can pass through the fixing hole 12 by moving its length along the length direction of the fixing hole 12. Rotating the locking plate 222 so that its length is perpendicular to the length direction of the fixing hole 12 allows for the installation of the fixing unit 2 and the correction body 1. Rotating the locking plate 222 again so that its length is parallel to the length direction of the fixing hole 12 allows for the disassembly of the fixing unit 2 and the correction body 1.

[0063] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A corrective device for pectus excavatum, characterized in that, include: The orthodontic body is strip-shaped; Two sets of fixing units are symmetrically arranged at the ends of the corrective body for connection with the ribs of the human body; in, Each of the fixed units has two postures, namely a first posture and a second posture, and each of the fixed units can switch freely between the first posture and the second posture; The first posture is that the fixing unit is in a position perpendicular to the length direction of the correction body; The second posture is that the fixing unit is in a position parallel to the length direction of the correction body; Any of the fixed units includes: The length of the fixing plate is greater than the width of the correction body; A fixing column is installed on the fixing plate.

2. The corrective device according to claim 1, characterized in that, The first posture is when the length direction of the fixing plate is perpendicular to the length direction of the correction body. The second posture is when the length direction of the fixing plate is parallel to the length direction of the correction body.

3. The corrective device according to claim 1, characterized in that, The fixing plate includes: The middle plate is attached to one side of the corrective body; A connecting plate is disposed on both sides of the intermediate plate, and at least one connecting hole is provided thereon.

4. The corrective device according to claim 3, characterized in that, The fixing column includes: A column is disposed on the intermediate plate, the column passing through the orthodontic body and being rotatably connected to the orthodontic body; A locking plate is integrally formed and disposed at the end of the column away from the intermediate plate, and the locking plate is attached to the side of the correction body away from the intermediate plate.

5. The corrective device according to claim 4, characterized in that: The corrective body is provided with traction holes and fixing holes; The traction hole is used to thread the traction line; The fixing holes are matched with the fixing units, and their quantities correspond one-to-one.

6. The corrective device according to claim 5, characterized in that, The column adopts a quadrangular prism structure, and its four edges are respectively attached to the inner wall surface of the fixing hole.

7. The corrective device according to claim 1, characterized in that, The width of the corrective body is between 1 cm and 1.5 cm, and the thickness is between 5 mm and 15 mm.

8. The corrective device according to claim 1, characterized in that, The corrective body and the fixing unit are made of stainless steel or titanium alloy.

9. The corrective device according to claim 1, characterized in that, The fixing unit is detachably rotatably connected to the end of the orthodontic body.

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