Integrated steel plate for chicken breast and funnel chest

Abstract

The present invention relates to an integrated steel plate for pectus carinatum and pectus excavatum, comprising a steel plate and a fixing plate, wherein the steel plate comprises an arc-shaped main body, a bendable part, a part connected to the fixing plate with (screw) holes at two ends, and an extension plate; the bendable part is a thin steel plate, which is arranged at the two ends of the arc-shaped main body, and the thickness is less than the thickness of the arc-shaped steel plate main body and the fixing plate connecting part, the transition zone of the thin steel plate is streamlined and is a rounded rectangle viewed from top to bottom, and the radius of the chamfer is 1 / 4 to 1 / 3 of the width of the thin steel plate; the thin steel plate can rotate more than 180° around the arc-shaped main body; the fixing plate is located above the steel plate in the use state, and the two are fixed by guide screws. The steel plate of the present invention is not easy to break during use, which significantly reduces the risk of surgery, has a better correction effect, and is easier to operate. When the length of the steel plate is shorter, it can be adjusted more flexibly.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a pectus carinatum and pectus excavatum integrated steel plate. Background Art

[0002] Pectus carinatum is the second most common chest wall deformity after pectus excavatum. Domestic and foreign literature reports that pectus carinatum accounts for about 5% to 20% of the incidence of anterior chest wall deformities. Pectus carinatum not only affects the patient's appearance due to its deformed appearance, causing serious psychological damage to the patient, but also because the patient's sternum protrudes forward, resulting in a reduction in chest volume, limited lung expansion, and reduced elasticity of lung tissue, thus affecting the development and normal function of the heart and lungs.

[0003] In the surgical treatment of pectus carinatum, sternal sedimentation was often used in the past. A longitudinal incision was made in the middle of the chest to free the soft tissues of the chest wall and the pectoralis major muscles on both sides; the deformed costal cartilages on both sides were stripped under the periosteum, the middle section was cut off, and they were fully released; the sternal ribs were sedimented to restore the normal chest cavity; if the sedimentation was not satisfactory, an incomplete osteotomy of the proximal sternum could be performed, and the excessive costal cartilage could be removed after the sedimentation, and the port was sutured. Some cases also require osteotomy of the sternal manubrium, and Kirschner wires need to be placed when necessary. This surgical procedure is highly traumatic to the patient and requires a long hospital stay. The volume of the chest cavity is reduced after the operation, and the large scar in the middle of the chest affects the appearance. It is often not accepted by patients and they give up surgical treatment. In recent years, with the development of medicine and the widespread development of minimally invasive NUSS for chest wall deformity funnel chest in the world, some scholars have gradually carried out minimally invasive surgical treatment of pectus carinatum based on the NUSS surgical principle. This method does not require a surgical incision in the middle of the chest, and does not require the freeing of chest wall tissue on both sides. It only requires a small incision of about 2 cm on both sides of the patient's chest armpits. The operation does not enter the chest cavity, and no drainage is required after the operation. The operation is small and the intraoperative bleeding is small. The stent placed during the operation can be personalized according to the degree of chest wall deformity of different patients to achieve good surgical results. The patient can walk on the ground on the 1st to 2nd day after the operation and can be discharged from the hospital 5-7 days after the operation. The steel plate currently used for pectus carinatum correction is an imported pectus carinatum steel plate, and there is currently no special steel plate for pectus carinatum. The use of pectus carinatum steel plates for pectus carinatum correction has the disadvantages of greater damage, complicated surgical steps, and inconvenient surgical operation.

[0004] In order to solve the above technical problems, the applicant submitted a patent application in 2016 with the invention name of "Carinae and funnel chest integrated steel plate", publication number CN106691565A, and publication date 2017.05.24, providing a carinae and funnel chest integrated steel plate, including a steel plate and a fixing plate, wherein the steel plate includes an arc-shaped main body, a bendable part, and a part connected to the fixing plate with (screw) holes at both ends; the bendable part is arranged at both ends of the arc-shaped main body, and it can rotate around the arc-shaped main body by more than 180°. The steel plate can be used without processing during surgery, and the two side sections of the steel plate can be deformed arbitrarily, which has stronger adaptability to the chest wall morphology and better effect, avoiding the restriction of the growth and development of the chest wall by the fixed shape steel plate; the steel plate used in carinae correction surgery has less trauma, simpler operation, and shorter operation time, filling the gap of no carinae special steel plate at home and abroad.

[0005] The above-mentioned integrated steel plate for pectus carinatum and pectus excavatum was invented by the applicant and was first used internally. During clinical use, the inventors found that the above-mentioned steel plate may break during or after the operation, which seriously affects the smooth progress of the operation and brings the risk of re-operation to the patient; in addition, the fixing plate is assembled below the fixing plate connecting part of the steel plate. The surgical operation steps are to fix the fixing plate on the ribs after the corresponding rib periosteum is stripped, and then the steel plate is introduced from the skin incision on one side to the incision on the other side, flattening the raised chest wall, connecting the fixing plate connecting part of the steel plate with the fixing plate, and fixing the two plates with screws. The inventors found that this operation method weakens the correction ability of the steel plate and affects the surgical effect; furthermore, although there are many types of fixing plates to choose from, the length of the steel plate used can be adjusted over a large range, and the steel plate is slightly longer or shorter. The problem can be overcome by selecting the fixing plate without affecting the surgical operation, but in some cases, the steel plate is still short and cannot be solved by selecting the fixing plate model; in addition, it is actually difficult to accurately align the fixing plate with the screw hole on the steel plate during the operation, and ordinary screw fixation is difficult to operate and the fixation effect is also poor.

[0006] Therefore, there is a need for an integrated steel plate for pectus excavatum that can reduce the risk of fracture, has a better correction effect, is easier to adjust the length, is easier to operate, and has greater stability. Summary of the invention

[0007] The purpose of the present invention is to provide an integrated steel plate for pectus carinatum and pectus excavatum that can reduce the risk of fracture, has better orthopedic effect, is easier to adjust the length, is easier to operate and has greater stability, in view of the deficiencies in the prior art.

[0008] To achieve the above object, the technical solution adopted by the present invention is:

[0009] A steel plate for chicken breast and funnel chest, comprising a steel plate (1) and a fixing plate (2), wherein the steel plate (1) comprises an arc-shaped steel plate body (11), a bendable deformable portion (12), and a fixing plate linking portion (14); the bendable deformable portion (12) is arranged at both ends of the arc-shaped steel plate body (11), and its width is the same as the width of the arc-shaped steel plate body (11), and the bendable deformable portion (12) can rotate around the arc-shaped steel plate body (11) by more than 180 degrees; the fixing plate linking portion (14) is connected to the bendable deformable portion (12), and its width is the same as the width of the arc-shaped steel plate body (11), and a plurality of through holes (15) arranged in the longitudinal direction are arranged on the fixing plate linking portion (14); the fixing plate (2) is provided with a U-shaped groove (23), and the notch of the U-shaped groove (23) is the same as the width and thickness of the fixing plate linking portion (14). The invention relates to a method for manufacturing a thin steel plate having a plurality of curved steel plates and a plurality of fixed plate links. The curved steel plate body (11) and the fixed plate linking portion (14) have the same thickness. The bendable and deformable portion (12) is a thin steel plate (13). The thickness of the thin steel plate (13) is less than the thickness of the curved steel plate body (11) and the fixed plate linking portion (14). The portion where the thin steel plate (13) is connected to the curved steel plate body (11) and the fixed plate linking portion (14), i.e., the thin steel plate transition zone (131), is streamlined. When viewed from top to bottom, the thin steel plate transition zone (131) is a rounded rectangle. There is a depression (1311) near the curved steel plate body (11) and the fixed plate linking portion (14). The radius of the chamfer of the thin steel plate (13) is 1 / 4 to 1 / 3 of the width of the thin steel plate. When in use, the fixed plate (2) is located above the steel plate (1), and the two are fixed by a guide screw (3).

[0010] As a preferred example of the present invention, the steel plate (1) further includes an extension plate (16), the cross section of the extension plate (16) is U-shaped, and the upper surface and the lower surface are each provided with a plurality of axially arranged fixing holes (17) in corresponding positions; in the use state, the extension plate (16) is inserted into the end of the fixed link (14), and the extension plate (16) and the fixed link (14) are fixed by screws through the fixing holes (17).

[0011] As another preferred embodiment of the present invention, the structure of the fixing plate (2) is one of the following three types: T-shaped, straight-shaped or cross-shaped:

[0012] T-shaped fixing plate: the front side of the fixing plate (2) is in the shape of a T-shaped plate, and the fixing plate (2) is composed of a fixing block (21) and a longitudinal plate (22), and the two ends of the longitudinal plate (22) are connected to the fixing block (21); the surfaces of the fixing block (21) and the longitudinal plate (22) form an arc surface with a certain curvature, and the arc surface is conducive to fitting with the ribs; on the reverse side of the fixing plate (2), a U-shaped groove (23) is formed between the fixing block (21) and the longitudinal plate (22), and the notch of the U-shaped groove (23) has the same width and thickness as the fixing plate linking portion (14); through holes (15) are provided at both ends of the fixing block (21), and a plurality of through holes (15) arranged in the longitudinal direction are provided on the longitudinal plate (22);

[0013] I-shaped fixing plate: the front side of the fixing plate (2) is in the shape of an I-shaped plate, the fixing plate (2) is composed of a fixing block (21) and a longitudinal plate (22), and the two ends of the longitudinal plate (22) are connected to the fixing block (21); the surfaces of the fixing block (21) and the longitudinal plate (22) form an arc surface with a certain curvature, which is conducive to fitting with the ribs; on the reverse side of the fixing plate (2), a U-shaped groove (23) is formed between the fixing block (21) and the longitudinal plate (22), and the notch of the U-shaped groove (23) is the same as the width and thickness of the fixing plate linking portion (14); through holes (15) are provided at both ends of the fixing block (21), and the longitudinal plate (22) is provided with a through hole (15);

[0014] Cross-shaped fixing plate: The front side of the fixing plate (2) is in the shape of a cross-shaped plate. The fixing plate (2) is composed of a fixing block (21) and a longitudinal plate (22), and the two ends of the longitudinal plate (22) are connected to the fixing block (21); the surfaces of the fixing block (21) and the longitudinal plate (22) form an arc surface with a certain curvature, which is conducive to fitting with the ribs; on the reverse side of the fixing plate (2), a U-shaped groove (23) is formed between the fixing block (21) and the longitudinal plate (22), and the notch of the U-shaped groove (23) is the same as the width and thickness of the fixing plate linking portion (14); through holes (15) are provided at both ends of the fixing block (21), and a plurality of through holes (15) arranged in the longitudinal direction are provided on the longitudinal plate (22).

[0015] As another preferred example of the present invention, the thickness of the thin steel plate (13) at the thinnest position is 1-3 mm.

[0016] The present invention has the advantages that:

[0017] 1. The applicant discovered in clinical practice that the original steel plate would break during or after surgery. After careful analysis, it was found that it was caused by deficiencies in the structure of the bendable and deformable part. Based on this, the portion where the thin steel plate is connected to the arc-shaped steel plate body and the fixing plate connecting part, namely the thin steel plate transition zone, is designed to be streamlined and rounded rectangle when viewed from top to bottom. A depression is designed near the arc-shaped steel plate body and the fixing plate connecting part, and the radius of the chamfer is designed to be between 1 / 4 and 1 / 3 of its width. This method significantly reduces the breakage rate of the steel plate, reduces clinical risks, and achieves unexpected technical effects.

[0018] 2. Based on actual application, the applicant found that the original steel plate fixing operation steps and methods weakened the orthopedic effect of the steel plate itself. Based on this, the steel plate fixing steps were changed, and the fixing plate was set above the fixing plate connecting part of the steel plate. It is easy to adjust the fixing position of the fixing plate and each screw hole, which significantly improves the orthopedic effect and makes the surgical operation simpler and easier.

[0019] 3. The steel plate of the present invention is also provided with an extension plate. When the length of the steel plate is short and the fixed plate cannot be adjusted, the extension plate is inserted into the end of the fixed link part to extend the steel plate, making the use of the steel plate more flexible. And this extension plate can be applied to steel plates of various specifications.

[0020] 4. Use guide screws to fix the steel plate and the fixing plate. This way, even if the screw holes of the steel plate and the fixing plate do not completely match and there is a gap between the two, the screws can be easily screwed in, making the surgical operation more convenient and improving the stability of both.

[0021] 5. The steel plate of the present invention can be used without processing during surgery. The two side sections of the steel plate can be arbitrarily deformed, and have strong adaptability to the chest wall shape and good effect. The restriction of the steel plate on the growth and development of the chest wall is also released.

[0022] 6. The fixing plate of the present invention has good fit with the ribs, and has an arc-shaped rib veneer on the fixing plate. The fixing plate is small in shape, easy to install, and requires a small incision.

[0023] 7. The fixing plate of the present invention is directly fixed to the steel plate by screws, without the need for difficult sleeve connection and repeated winding and fixing with steel wire.

[0024] 8. The fixing plate of the present invention has a variety of models to choose from, and the length of the steel plate used can be adjusted in a wide range. The slightly longer or shorter steel plate can be overcome by the selection of the fixing plate without affecting the surgical operation and surgical effect. Therefore, the selection of the steel plate length is easier, the operation is simpler, and the accuracy of the chest wall settlement that determines the surgical effect is higher.

[0025] 9. The arc-shaped steel plate of the present invention has better permeability under the skin of the chest wall and causes less damage than the staple-shaped steel plate currently used.

[0026] 10. The steel plate of the present invention is mainly used for correction surgery of pectus carinatum, but can also be used for correction of pectus excavatum. Compared with NUSS surgery, it has the advantages of better and safer sternal passability and no restriction on chest wall growth and development.

[0027] 11. The steel plate of the present invention is used in pectus carinatum correction surgery with less trauma, easier operation and shorter operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Attached Figure 1 It is a schematic diagram of the structure of a chicken breast and funnel chest integrated steel plate of the present invention.

[0029] Attached Figure 2 It is a structural diagram of the steel plate.

[0030] Attached Figure 3 It is a structural schematic diagram of the bendable and deformable portion.

[0031] Attached Figure 4 It is a right side view of the bendable and deformable portion.

[0032] Attached Figure 5 It is a front view of the bendable and deformable portion.

[0033] FIG6 is a schematic diagram of the structure of the straight-line fixing plate of the present invention. Fig. 6A This is a front view of a straight-line fixing plate. Figure 6B This is a schematic diagram of the reverse side of the I-shaped fixing plate. Figure 6C This is a schematic diagram of the structure of a straight-line fixed plate. Fig.6D It is a top view of the I-shaped fixing plate.

[0034] Attached Figure 7 It is a schematic diagram of the structure of the T-shaped fixing plate of the present invention.

[0035] Attached Figure 8 It is a schematic diagram of the structure of the cross-shaped fixing plate of the present invention.

[0036] Attached Fig. 9 This is a schematic diagram of the extended plate structure of another integrated steel plate for carinae pectus and pectus excavatum of the present invention. DETAILED DESCRIPTION

[0037] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0038] The reference numerals and components involved in the drawings are as follows:

[0039] 1.Steel plate 2.Fixed plate

[0040] 11. Arc-shaped steel plate body 12. Bendable and deformable part

[0041] 13. Thin steel plate 14. Fixed plate connection part

[0042] 15.Through hole 16.Extension plate

[0043] 17.Fixed hole 21.Fixed block

[0044] 22. Vertical plate 23. Groove

[0045] 131. Thin steel plate transition zone 1311. Depression

[0046] 3. Guide screw

[0047] Example 1

[0048] See also Figure 1 , Figure 1 The present invention is a schematic diagram of a steel plate structure for a chicken breast and a funnel chest. The chicken breast and a funnel chest steel plate comprises a steel plate 1 and a fixing plate 2. The fixing plates 2 have two parts, which are respectively assembled at the two ends of the steel plate 1 through guide screws 3.

[0049] See also Figure 2 , Figure 2 It is a structural schematic diagram of a steel plate. The steel plate 1 comprises an arc-shaped steel plate body 11, a bendable deformable portion 12, and a fixing plate linking portion 14; the curvature of the arc-shaped steel plate body 11 is the same as the curvature of the cross section of the anterior chest wall; the bendable deformable portion 12 is arranged at both ends of the arc-shaped steel plate body 11, and its width is the same as the width of the arc-shaped steel plate body 11, and the bendable deformable portion 12 can rotate more than 180 degrees around the arc-shaped steel plate body 11; the fixing plate linking portion 14 is connected to the bendable deformable portion 12, and its width is the same as the width of the arc-shaped steel plate body 11, and a plurality of through holes 15 arranged in the longitudinal direction are provided on the fixing plate linking portion 14.

[0050] See also Figure 3 , Figure 3 1 is a schematic diagram of the structure of the bendable deformable part, wherein the bendable deformable part 12 is a thin steel plate 13, one end of the thin steel plate 13 is fixedly connected to the arc-shaped steel plate body 11, and the other end is fixedly connected to the fixed plate link part 14. Figure 4 , Figure 4It is a right view of the bendable deformable part. The thickness of the thin steel plate 13 at each position is smaller than the thickness of the arc-shaped steel plate body 11 and the fixed plate linking part 14. The thin steel plate transition zone 131 where the thin steel plate 13 is connected with the arc-shaped steel plate body 11 and the fixed plate linking part 14 is streamlined. Figure 5 , Figure 5 It is a front view of the bendable deformable portion. Looking from top to bottom, the thin steel plate transition zone 131 is a rounded rectangle, and there is a depression 1311 near the position of the arc-shaped steel plate body 11 and the fixing plate linking portion 14.

[0051] The specifications of the steel plate 1 are as follows: the thickness of the arc-shaped steel plate main body 11 is 6-14 mm; the thickness of the thinnest part in the middle of the thin steel plate 13 is 1-3 mm; most importantly, the radius of the chamfer of the thin steel plate 13 is between 1 / 4 and 1 / 3 of its width. This parameter is obtained based on experiments and can significantly reduce the breakage rate of the steel plate.

[0052] The structure of the fixing plate 2 is one of the following three types: T-shaped, straight-shaped or cross-shaped:

[0053] I-shaped fixing plate: Please refer to FIG. 6, which is a schematic diagram of the structure of the I-shaped fixing plate of the present invention, wherein Fig. 6A This is a front view of a straight-line fixing plate. Figure 6B This is a schematic diagram of the reverse side of the I-shaped fixing plate. Figure 6C This is a schematic diagram of the I-shaped fixing plate structure. Fig.6D The front side of the fixing plate 2 is a straight sheet ( Fig. 6A As shown in FIG. 1 , the fixing plate 2 is composed of a fixing block 21 and a longitudinal plate 22, and the two ends of the longitudinal plate 22 are respectively connected to the fixing block 21. The surfaces of the fixing block 21 and the longitudinal plate 22 form a continuous curved surface with a certain curvature ( Fig.6D As shown in FIG. 1 , the curved surface is conducive to the fixing plate and the ribs to fit. On the reverse side of the fixing plate 2, a U-shaped groove 23 is formed between the fixing block 21 and the longitudinal plate 22. The width and thickness of the U-shaped groove 23 are the same as those of the fixing plate linking portion 14. Through holes 15 are provided at both ends of the fixing block 21, and through holes 15 are provided on the longitudinal plate 22.

[0054] T-type fixing plate: see Figure 7 , Figure 7It is a schematic diagram of the structure of the T-shaped fixing plate of the present invention. The front side of the fixing plate 2 is in the shape of a T-shaped plate. The fixing plate 2 is composed of a fixing block 21 and a longitudinal plate 22. The two ends of the longitudinal plate 22 are respectively connected to the fixing block 21. The surfaces of the fixing block 21 and the longitudinal plate 22 form a continuous curved surface with a certain curvature, which is conducive to the fitting of the fixing plate with the ribs. On the reverse side of the fixing plate 2, a U-shaped groove 23 is formed between the fixing block 21 and the longitudinal plate 22. The width and thickness of the U-shaped groove 23 are the same as those of the fixing plate linking portion 14; through holes 15 are provided at both ends of the fixing block 21, and 2-3 through holes arranged along the longitudinal direction are provided on the longitudinal plate 22.

[0055] Cross-type fixing plate: see Figure 8 , Figure 8 It is a schematic diagram of the cross-shaped fixing plate structure of the present invention. The front side of the fixing plate 2 is a cross-shaped plate, and the fixing plate 2 is composed of a fixing block 21 and a longitudinal plate 22, and the two ends of the longitudinal plate 22 are respectively connected to the fixing block 21. The surfaces of the fixing block 21 and the longitudinal plate 22 form a continuous curved surface with a certain curvature, which is conducive to the fitting of the fixing plate and the ribs. On the reverse side of the fixing plate 2, a U-shaped groove 23 is formed between the fixing block 21 and the longitudinal plate 22, and the width and thickness of the U-shaped groove 23 are the same as those of the fixing plate linking portion 14; through holes 15 are provided at both ends of the fixing block 21, and 2-4 through holes arranged along the longitudinal direction are provided on the longitudinal plate 22.

[0056] The method of using the integrated steel plate for pectus carinatum and pectus excavatum of the present invention is as follows: make minimally invasive skin incisions on both sides of the chest wall, make subcutaneous tunnels along the chest wall to connect the incisions on both sides, perform corresponding rib periosteum peeling, introduce the steel plate 1 from the skin incision on one side to the incision on the other side, flatten the raised chest wall, dock the fixing plate linking part 14 of the steel plate 1 with the fixing plate 2, fix the steel plate 1 and the fixing plate 2 with the upper guide screw 3, wherein the fixing plate 2 is located above the steel plate 1, and finally suture the wound skin to complete the operation.

[0057] It should be noted that the portion where the thin steel plate 13 is connected to the curved steel plate body 11 and the fixing plate link 14 of the integrated steel plate for chicken breast and funnel chest of the present invention, namely the thin steel plate transition zone 131, is streamlined. When viewed from top to bottom, the thin steel plate transition zone 131 is a rounded rectangle, and there is a depression 1311 near the curved steel plate body 11 and the fixing plate link 14. The radius of the chamfer of the thin steel plate 13 is between 1 / 4 and 1 / 3 of its width. This parameter is obtained based on experiments and can significantly reduce the fracture rate of the steel plate. The specific experiments are as follows:

[0058] 1. Test Materials

[0059] 1. Sample

[0060] Sample 1: The integrated steel plate for carina breast and funnel chest of CN106691565A, wherein the arc-shaped steel plate main body 11 is 35 cm long, 2.5 cm wide and 3 mm thick; the thin steel plate 13 is 3.5 cm long and 2.5 cm wide, and there is no smooth transition at the connection between the thin steel plate and the arc-shaped steel plate main body 11 and the fixing plate linking portion 14.

[0061] Sample 2: An integrated steel plate of chicken breast and funnel chest with the same structure as the present embodiment, the arc-shaped steel plate main body 11 is 35 cm long, 2.5 cm wide and 3 mm thick; the thin layer steel plate 13 is 3.5 cm long, 2.5 cm wide, the thickness of the thinnest part is 1 mm, and the chamfer radius is 0.600 cm; the fixed plate link part 14 is 5 cm long, 2.5 cm wide and 3 mm thick.

[0062] Sample 3: An integrated steel plate of chicken breast and funnel chest with the same structure as the present embodiment, the arc-shaped steel plate main body 11 is 35 cm long, 2.5 cm wide and 3 mm thick; the thin layer steel plate 13 is 3.5 cm long, 2.5 cm wide, the thickness of the thinnest part is 1 mm, and the chamfer radius is 0.625 cm; the fixed plate link part 14 is 5 cm long, 2.5 cm wide and 3 mm thick.

[0063] Sample 4: An integrated steel plate of chicken breast and funnel chest with the same structure as the present embodiment, the arc-shaped steel plate main body 11 is 35 cm long, 2.5 cm wide and 3 mm thick; the thin layer steel plate 13 is 3.5 cm long, 2.5 cm wide, the thickness of the thinnest part is 1 mm, and the chamfer radius is 0.729 cm; the fixing plate link part 14 is 5 cm long, 2.5 cm wide and 3 mm thick.

[0064] Sample 5: An integrated steel plate for chicken breast and funnel chest with the same structure as the present embodiment, the arc-shaped steel plate main body 11 is 35 cm long, 2.5 cm wide and 3 mm thick; the thin layer steel plate 13 is 3.5 cm long, 2.5 cm wide, the thickness of the thinnest part is 1 mm, and the chamfer radius is 0.833 cm; the fixing plate link part 14 is 5 cm long, 2.5 cm wide and 3 mm thick.

[0065] Sample 5: An integrated steel plate of chicken breast and funnel chest with the same structure as the present embodiment, the arc-shaped steel plate main body 11 is 35 cm long, 2.5 cm wide and 3 mm thick; the thin layer steel plate 13 is 3.5 cm long, 2.5 cm wide, the thickness of the thinnest part is 1 mm, and the chamfer radius is 0.900 cm; the fixing plate link part 14 is 5 cm long, 2.5 cm wide and 3 mm thick.

[0066] 2. Instruments

[0067] Zwick Z020 electronic universal materials testing machine.

[0068] 2. Test methods

[0069] Randomly select 20 specimens from samples of different specifications, clamp the test fixture at the connection part of the fixed plates at both ends, twist the fixtures at both ends in opposite directions, and count the number of fractures.

[0070] 3. Test results

[0071] The statistical results of the fracture conditions of steel plate samples of various specifications are shown in Table 1. The data show that the steel plate of the present invention has a reasonable design in the thin layer steel plate part, which significantly reduces the fracture rate.

[0072] Table 1 Fracture statistics of steel plate samples of various specifications

[0073]

[0074]

[0075] The fixed plate 2 of the integrated steel plate for pectus carinatum and pectus excavatum of the present invention is located above the steel plate 1 when in use, which significantly improves the orthopedic effect of the steel plate 1 compared to the previous fixing method and is more convenient for surgical operation. In the present application, a guide screw 3 is used to fix the steel plate 1 and the fixed plate 2, so that even if the screw holes of the steel plate 1 and the fixed plate 3 are not completely aligned and there is a gap between the two, the screw can be easily screwed in, making the surgical operation more convenient and improving the stability of the two.

[0076] In addition, compared with the steel plates designed by other applicants in the prior art, the present invention has the following advantages:

[0077] The steel plate 1 includes an arc-shaped steel plate main body 11, and bendable deformable parts 12 are respectively provided at both ends of the arc-shaped steel plate main body 11. The width of the bendable deformable part 12 is the same as the width of the arc-shaped steel plate main body 11, and the bendable deformable part 12 can rotate more than 180 degrees around the arc-shaped steel plate main body 11; this design makes the steel plate more adaptable to the chest wall morphology after surgical implantation, and the surgical correction effect is better. After being implanted in the patient's body, the steel plate can adapt to the changes in the chest cavity morphology to avoid the restriction of the growth and development of the chest wall by the fixed-shape steel plate.

[0078] The fixing plate 2 is provided with a U-shaped groove 23, the notch of the U-shaped groove has the same width and thickness as the fixing link 14, and the U-shaped groove 23 is provided with a through hole 15. When in use, the fixing link 14 is matched with the U-shaped groove 23 on the fixing plate 2, and the through hole 15 on the U-shaped groove 23 corresponds to the through hole 15 on the fixing link 14. The fixing link 14 is fixed to the fixing plate 2 by screws, which simplifies the fixing operation, makes the operation more convenient, and shortens the operation time.

[0079] The fixing plate 2 and the steel plate 1 are directly fixed with screws, without the need for difficult sleeve connection and repeated winding and fixing with steel wires, thus simplifying the fixing operation, making the operation more convenient and shortening the operation time.

[0080] The fixing plate 2 has a variety of models to choose from, and the length of the steel plate used can be adjusted over a wide range. The slightly longer or shorter steel plate can be overcome by the selection of the fixing plate without affecting the surgical operation and surgical effect. Therefore, the selection of the steel plate length is easier, the operation is simpler, and the accuracy of the chest wall settlement that determines the surgical effect is higher.

[0081] The fixing plate 2 is composed of a fixing block 21 and a longitudinal plate 22. The longitudinal plate 22 is provided with 2-4 through holes 15 arranged in the longitudinal direction, and the fixing link 14 is provided with 2-7 through holes 15 arranged in the longitudinal direction; when in use, the fixing link 14 is matched with the U-shaped groove 23 on the fixing plate 2, and the through holes 15 on the longitudinal plate 22 correspond to the through holes 15 on the fixing link 14. By setting the through holes at different positions to correspond, the length of the steel plate used can be adjusted in a wide range, and the slightly longer or shorter steel plate can be overcome by the selection of the fixing plate without affecting the surgical operation, so the selection of the steel plate length is easier, the operation is simpler, and the accuracy of the chest wall settlement that determines the surgical effect is higher.

[0082] The thin steel plate 13 is relatively thin, and can maintain a certain shape. At the same time, it can be bent and deformed arbitrarily under the action of a large external force. The thin steel plate 13 has a stronger adaptability to the chest wall shape, and the surgical correction effect is better. After being implanted in the patient's body, the steel plate can adapt to the changes in the chest cavity shape. The curvature of the thin steel plate 13 changes with the growth of the chest wall, avoiding the restriction of the growth and development of the chest wall by the fixed-shape steel plate.

[0083] The curvature of the arc-shaped steel plate body 11 is the same as the curvature of the cross section of the anterior chest wall. The arc-shaped steel plate has better permeability under the skin of the chest wall and causes less damage than the currently used staple-shaped steel plate.

[0084] Example 2

[0085] The structure of the integrated steel plate of chicken breast and pectus excavatum in this embodiment is basically the same as that of the integrated steel plate of chicken breast and pectus excavatum in embodiment 1, except that: Fig. 9 , Fig. 9It is a schematic diagram of the extension plate structure of another integrated steel plate for pectus carinatum and pectus excavatum of the present invention. The steel plate 1 is further provided with an extension plate 16. The cross section of the extension plate 16 is U-shaped, and the upper surface and the lower surface are each provided with a plurality of axially arranged fixing holes 17 corresponding to the position. When the length of the steel plate 1 is short and the fixing plate 2 cannot be adjusted, the extension plate 16 is inserted into the end of the fixed link 14, and then the screws are matched with the fixing holes 17 to fix the extension plate 16 and the fixed link 14, so as to achieve the purpose of extending the steel plate 1 and improve the flexibility of the steel plate.

[0086] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the method of the present invention. These improvements and supplements should also be regarded as the scope of protection of the present invention.

Claims

1. An integrated steel plate for chicken breast and funnel chest, characterized in that: The invention comprises a steel plate (1) and a fixing plate (2), wherein the steel plate (1) comprises an arc-shaped steel plate body (11), a bendable and deformable portion (12), and a fixing plate linking portion (14); the bendable and deformable portion (12) is arranged at both ends of the arc-shaped steel plate body (11), and its width is the same as that of the arc-shaped steel plate body (11); the bendable and deformable portion (12) can rotate around the arc-shaped steel plate body (11) by more than 180 degrees; the fixing plate linking portion (14) is connected to the bendable and deformable portion (12), and its width is the same as that of the arc-shaped steel plate body (11). The width of the plate body (11) is the same, and the fixing plate linking portion (14) is provided with a plurality of through holes (15) arranged in the longitudinal direction; the fixing plate (2) is provided with a U-shaped groove (23), and the notch of the U-shaped groove (23) is the same as the width and thickness of the fixing plate linking portion (14); the thickness of the arc-shaped steel plate body (11) and the fixing plate linking portion (14) is the same, and the bendable deformable portion (12) is a thin steel plate (13), and the thickness of the thin steel plate (13) is less than that of the arc-shaped steel plate body (11) and the fixing plate linking portion (14). ) thickness; the portion where the thin steel plate (13) is connected to the arc-shaped steel plate body (11) and the fixing plate linking portion (14), i.e., the thin steel plate transition zone (131) is streamlined. When viewed from top to bottom, the thin steel plate transition zone (131) is a rounded rectangle, and a depression (1311) is provided near the arc-shaped steel plate body (11) and the fixing plate linking portion (14). The radius of the chamfer of the thin steel plate (13) is 1 / 4 to 1 / 3 of the width of the thin steel plate; in the use state, the fixing plate (2) is located at the steel plate ( 1), the two are fixed by a guide screw (3), the steel plate (1) also includes an extension plate (16), the cross section of the extension plate (16) is U-shaped, and the upper surface and the lower surface are respectively provided with a plurality of axially arranged fixing holes (17) in corresponding positions; in the use state, the extension plate (16) is inserted into the end of the fixing plate link part (14), and the extension plate (16) and the fixing plate link part (14) are fixed by screws through the fixing holes (17), and the thickness of the thinnest position of the thin steel plate (13) is 1-3 mm.

2. The integrated steel plate for chicken breast and funnel chest according to claim 1, characterized in that: The structure of the fixing plate (2) is one of the following three types: T-shaped, straight-shaped or cross-shaped: T-shaped fixing plate: the front side of the fixing plate (2) is in the shape of a T-shaped plate, and the fixing plate (2) is composed of a fixing block (21) and a longitudinal plate (22), and the two ends of the longitudinal plate (22) are connected to the fixing block (21); the surfaces of the fixing block (21) and the longitudinal plate (22) form an arc surface with a certain curvature, and the arc surface is conducive to fitting with the ribs; on the reverse side of the fixing plate (2), a U-shaped groove (23) is formed between the fixing block (21) and the longitudinal plate (22), and the notch of the U-shaped groove (23) has the same width and thickness as the fixing plate linking portion (14); through holes (15) are provided at both ends of the fixing block (21), and a plurality of through holes (15) arranged in the longitudinal direction are provided on the longitudinal plate (22); I-shaped fixing plate: the front side of the fixing plate (2) is in the shape of an I-shaped plate, the fixing plate (2) is composed of a fixing block (21) and a longitudinal plate (22), and the two ends of the longitudinal plate (22) are connected to the fixing block (21); the surfaces of the fixing block (21) and the longitudinal plate (22) form an arc surface with a certain curvature, which is conducive to fitting with the ribs; on the reverse side of the fixing plate (2), a U-shaped groove (23) is formed between the fixing block (21) and the longitudinal plate (22), and the notch of the U-shaped groove (23) is the same as the width and thickness of the fixing plate linking portion (14); through holes (15) are provided at both ends of the fixing block (21), and the longitudinal plate (22) is provided with a through hole (15); Cross-shaped fixing plate: The front side of the fixing plate (2) is in the shape of a cross-shaped plate. The fixing plate (2) is composed of a fixing block (21) and a longitudinal plate (22), and the two ends of the longitudinal plate (22) are connected to the fixing block (21); the surfaces of the fixing block (21) and the longitudinal plate (22) form an arc surface with a certain curvature, which is conducive to fitting with the ribs; on the reverse side of the fixing plate (2), a U-shaped groove (23) is formed between the fixing block (21) and the longitudinal plate (22), and the notch of the U-shaped groove (23) is the same as the width and thickness of the fixing plate linking portion (14); through holes (15) are provided at both ends of the fixing block (21), and a plurality of through holes (15) arranged in the longitudinal direction are provided on the longitudinal plate (22).

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