Funnel chest orthopedic piece and orthopedic device

Abstract

The utility model discloses a funnel chest orthopedic piece and an orthopedic device, and belongs to the field of orthopedic medical instruments. The funnel chest orthopedic piece comprises a protruding part, a connecting part, an attaching part and the like. Hook claws are arranged at the two ends of the protruding part. The connecting parts extend from the protruding parts to the outer sides of the protruding parts, and the attaching parts are connected with the connecting parts. Under the influence of the external application temperature, the connecting part gradually recovers the shape, or the connecting part and the protruding part gradually recover the shape, and the hooking claws are driven to pull ribs, so that the purpose of treating the funnel chest is achieved. The funnel chest orthopedic device comprises a funnel chest orthopedic piece, a shell piece, a winding arm, a locking piece and the like, under the action of the locking piece and the winding arm, the shell piece is fixed to the body of a patient, the funnel chest orthopedic piece is squeezed towards the skin of the patient, and an adhesive on the funnel chest orthopedic piece can be well attached to the skin of the patient, so that the funnel chest orthopedic device is convenient to use. Therefore, the funnel chest orthopedic piece is assisted to be stably attached to the skin of the patient.

Description

Technical Field

[0001] The utility model relates to the field of orthopedic medical instruments, in particular to a pectus excavatum correction piece and correction device. Background Art

[0002] Pectus excavatum is a congenital condition that runs in families and is inherited as a sex-linked dominant trait. Pectus excavatum is a progressive condition that may be present at birth, but often becomes increasingly noticeable months or even years later, often becoming apparent to parents. Physically, it is characterized by a sunken chest, protruding shoulders, a slightly hunched back, and a prominent upper abdomen. Pectus excavatum is a deformity in which the sternum, costal cartilages, and a portion of the ribs are concave toward the spine, forming a funnel shape. In most cases of pectus excavatum, the sternum begins to extend backward from the level of the second or third costal cartilage, reaching its lowest point slightly above the xiphoid process, before returning forward to form a boat-like shape. Pectus excavatum compresses the heart and lungs, often displacing the heart toward the left side of the chest. Children often display a distinctive, weak posture: a forward-extended neck, rounded shoulders, and a can-shaped abdomen.

[0003] In recent years, minimally invasive surgery has replaced traditional surgery. This procedure involves inserting a custom-shaped orthosis under thoracoscopy. This corrects the sternal depression and pushes outwards any inwardly deformed costal cartilage. No ribs are removed, and no pectoralis major muscle is incised. The orthosis remains in place for 2 to 5 years before removal. The average surgical time is 35 minutes, with minimal incision, minimal bleeding, and minimal trauma. Muscle and cartilage are preserved, resulting in a rapid recovery, early mobility, and significantly shortened hospital stays. Furthermore, the procedure offers minimal complications, a high rate of satisfactory deformity correction, and a low recurrence rate. Besides improving cardiopulmonary function, it also corrects the position of the sternum and ribs, while also addressing aesthetic concerns. Excellent results are also achieved in adults.

[0004] However, the existing technology of implanting the orthosis into the patient's body generally causes a large burden on the patient's body. Therefore, it is necessary to manufacture another form of pectus excavatum orthosis that puts less burden on the patient. Utility Model Content

[0005] In order to solve the defects of the existing technology, the pectus excavatum orthosis provided by the present invention includes components such as a protrusion, a hook, a connecting portion and a fitting portion. The present invention only implants the hook into the patient's body, and the remaining components are all outside the human body. Compared with implanting the pectus excavatum orthosis into the patient's body, the burden caused is smaller.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A pectus excavatum correction device comprises: a protrusion that can be placed basically in the depression of a patient's pectus carinatum, with claws provided at both ends of the protrusion for hooking the patient's ribs; a connecting portion extending from the protrusion in a first direction and a second direction toward the outside of the protrusion respectively, and a fitting portion connected to the connecting portion that can fit against the patient's chest cavity; wherein the connecting portion is made of a memory alloy; or the connecting portion and the protrusion are both made of a memory alloy.

[0008] Furthermore, an adhesive is provided on the bonding portion.

[0009] Furthermore, a groove is provided on the side of the fitting portion facing away from the adhesive.

[0010] Based on the same inventive concept, the utility model also discloses a pectus excavatum correction device

[0011] A pectus excavatum correction device comprises: the pectus excavatum correction piece described above; and a shell piece; the pectus excavatum correction piece can be snap-connected to the shell piece.

[0012] Furthermore, a protrusion is provided on the shell member; when the groove on the pectus excavatum orthosis is plugged into the protrusion, the pectus excavatum orthosis can be snapped onto the shell member.

[0013] Furthermore, it also includes: a wrapping arm for wrapping around the patient, the wrapping arm passes through the shell part, and a locking hole is provided near the end of the wrapping arm; a locking member for fixing the wrapping arm, and the locking member can pass through the locking hole.

[0014] Furthermore, the locking piece includes: a sphere located at one end of the locking piece; a column located in the middle of the locking piece, the upper end of the column being connected to the lower end of the sphere; and a contact plate located at the other end of the locking piece, the contact plate being connected to the lower end of the column.

[0015] Furthermore, the diameter of the sphere is slightly larger than the diameter of the locking hole; the diameter of the cylinder is equal to or slightly smaller than the diameter of the locking hole, and the height of the cylinder is equal to twice the thickness of the winding arm; the center point of the contact plate coincides with the center point of the lower end of the cylinder, and the length extending from the center point of the contact plate to both ends is greater than the diameter of the cylinder.

[0016] Furthermore, a channel is opened inside the shell member, the channel is rectangular, and the upper wall of the channel is provided with a first blocking block, and the lower wall of the channel is provided with a second blocking block; the wrapping arm includes: a first wrapping arm for wrapping around the left side of the patient, a first abutting block is provided in the middle; a second wrapping arm for wrapping around the right side of the patient, a second abutting block is provided in the middle; the locking hole includes: a first locking hole, which is provided at the first end of the first wrapping arm, and the first locking hole is a circular hole structure; a second locking hole is provided at the second end of the second wrapping arm, and the second locking hole is the same as the first locking hole; wherein, the first blocking block and the first abutting block are adapted, and the first blocking block limits the first wrapping arm; the second blocking block and the second abutting block are adapted, and the second blocking block limits the second wrapping arm; the patient can pull the first wrapping arm toward the first end and / or pull the second wrapping arm toward the second end according to his or her needs, thereby increasing the overall length of the device.

[0017] Furthermore, the first blocking block, the second blocking block, the first supporting block and the second supporting block are all in the shape of an oblique triangle.

[0018] The beneficial effects of the utility model are:

[0019] The pectus excavatum correction piece and correction device provided by the utility model include:

[0020] The orthosis includes components such as a protrusion, a hook, a connecting portion and a fitting portion. The protrusion is placed on the concave part of the patient's pectus carinatum, the hook provided on the protrusion hooks the patient's ribs, the fitting portion is fitted on the patient's chest cavity, and the adhesive on the fitting portion is fitted on the patient's skin. Under the influence of the external application temperature, the connecting portion gradually restores its shape, or the connecting portion and the protrusion gradually restore their shape, pulling the ribs with the hook, thereby achieving the purpose of treating funnel chest.

[0021] The device includes a pectus excavatum orthosis, a shell, a wrapping arm, and a locking member. The pectus excavatum orthosis is squeezed toward the patient's skin, and the adhesive on the pectus excavatum orthosis can fit well on the patient's skin, thereby helping the pectus excavatum orthosis to fit firmly on the patient's skin, thereby enhancing the effect of the pectus excavatum orthosis in treating pectus excavatum. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the pectus excavatum correction device of the present invention;

[0023] Figure 2 For this utility model Figure 1 Another perspective of

[0024] Figure 3This is a schematic diagram of the three-dimensional structure of the pectus excavatum correction device of the present invention;

[0025] Figure 4 For this utility model Figure 3 Schematic diagram of the three-dimensional structure of the hidden pectus excavatum correction piece;

[0026] Figure 5 For this utility model Figure 4 sectional view of

[0027] Figure 6 For this utility model Figure 4 Another perspective of

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the locking member of the utility model.

[0029] Reference numerals:

[0030] 1. Housing; 11. Raised portion; 12. Channel; 13. First stopper; 14. Second stopper;

[0031] 2. Wrapping arm; 21. First wrapping arm; 22. Second wrapping arm; 23. First end; 24. Second end; 25. Locking hole; 251. First locking hole; 252. Second locking hole; 26. First abutting block; 27. Second abutting block;

[0032] 3. Excavatum pectus orthosis; 31. protrusion; 32. connection portion; 33. fitting portion; 34. adhesive; 35. groove;

[0033] 4. Locking member; 41. Ball; 42. Cylinder; 43. Contact plate;

[0034] 5. Hook claw;

[0035] A1, first direction; B1, second direction. DETAILED DESCRIPTION

[0036] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0037] Example 1

[0038] As attached Figure 1As described above, this embodiment discloses a pectus excavatum correction device 3 for treating pectus excavatum, which mainly includes: a protrusion 31, a connection portion 32, a fitting portion 33, and a hook 5. The protrusion 31 is provided with hooks 5 at both ends, and the protrusion 31 is provided with a connection portion 32 extending in both directions on the outside of the protrusion 31. The fitting portion 33 is connected to the connection portion 32, and the fitting portion 33 can fit in the patient's chest; wherein, the connection portion 32 is made of memory alloy. When in use, the protrusion 31 is placed in the concave part of the patient's pectus carinatum, the hook 5 hooks the patient's ribs, the connection portions 32 on both sides are in contact with the patient, and the fitting portion 33 fits in the patient's chest. Under the influence of the external application temperature, the connection portion 32 gradually restores its shape, moves with the protrusion 31, and drives the hook 5 to pull the ribs, thereby achieving the purpose of treating pectus excavatum.

[0039] The protrusion 31 can be placed in the depression of the patient's pectus carinatum. The protrusion 31 is similar in shape to the depression. Furthermore, hooks 5 are provided at each end of the protrusion 31. During use, the protrusion 31 is placed in the depression. Through surgical intervention, the hooks 5 on the protrusion 31 simultaneously hook onto the patient's left and right ribs, preparing for subsequent treatment.

[0040] The connecting portion 32 contacts the skin on both sides of the patient's pectus carinatum. Specifically, the connecting portion 32 extends in both a first direction A1 and a second direction B1 outside the protrusion 31. When the protrusion 31 is placed in the concave portion of the patient's pectus carinatum, the connecting portion 32 can contact the skin on both sides. Furthermore, the connecting portion 32 is made of a memory alloy. Under the influence of the external application temperature, the connecting portion 32 gradually recovers its shape, moving with the protrusion 31 and the hook 5, causing the hook 5 to exert outward pulling force on the patient's ribs, thereby achieving the purpose of treating pectus excavatum.

[0041] Furthermore, the fitting portion 33 is used to fit the patient's chest. Specifically, the fitting portion 33 is connected to the connecting portion 32. During use, the fitting portion 33 fits the patient's chest. Under the influence of the external application temperature, the connecting portion 32 gradually restores its shape. At this time, the fitting portion 33 exerts pressure on the patient's skin. The pectus excavatum brace 3 forms a force point on the patient's body, so that the connecting portion 32 can better move with the protrusion 31, driving the hook 5 to pull the ribs, thereby enhancing the effect of treating pectus excavatum. In this embodiment, only the hook 5 is implanted into the patient's body, and the remaining components are outside the human body. Compared with implanting the pectus excavatum brace into the patient's body, the burden generated is smaller.

[0042] Example 2

[0043] As attached Figure 1As mentioned above, in order to achieve the purpose of increasing the stability of the pectus excavatum orthosis 3, the present embodiment discloses a pectus excavatum orthosis, which includes not only the pectus excavatum orthosis 3 in the aforementioned embodiment 1, but also an adhesive 34. Specifically, the adhesive 34 is provided on the fitting portion 33. The adhesive 34 is generally a hydrogel composite (a layer of pressure-sensitive adhesive is coated on one side of the polyacrylic acid-based zwitterionic hydrogel, the pressure-sensitive adhesive is coated on the fitting portion 33, and the hydrogel is provided on the pressure-sensitive adhesive). It can fill the gap between the fitting portion 33 and the patient's skin, reduce the friction and pressure between the two, and thus alleviate the patient's discomfort to a certain extent. At the same time, the adhesive 34 fits the patient's skin so that the fitting portion 33 can fit firmly on the patient's skin, thereby improving the stability of the pectus excavatum orthosis 3 on the patient. A groove 35 is provided on the fitting portion 33 and on the side facing away from the adhesive 34, as shown in the attached figure. Figure 2 As described above, this can reduce the overall weight of the pectus excavatum orthosis 3, thereby alleviating the burden of the pectus excavatum orthosis 3 on the patient's body.

[0044] This embodiment, based on the contents of the aforementioned embodiment 1, proposes an alternative solution: both the connecting portion 32 and the protruding portion 31 are made of memory alloy. The other contents are the same as those in the aforementioned embodiment 1 and are not repeated here. During use, the protruding portion 31 is placed in the depression of the patient's pectus carinatum, the hooks 5 hook the patient's ribs, the connecting portions 32 on both sides contact the patient, and the fitting portion 33 fits the patient's chest cavity. Under the influence of the external application temperature, the connecting portion 32 and the protruding portion 31 gradually restore their shape, pulling the ribs with the hooks 5, thereby achieving the purpose of treating pectus excavatum.

[0045] Example 3

[0046] As attached Figure 3 As described above, this embodiment discloses a pectus excavatum correction device for assisting a pectus excavatum correction component 3 in securely adhering to a patient's skin. In addition to the components of the aforementioned embodiment 2, the device further comprises a housing 1, a wrapping arm 2, and a locking component 4. The pectus excavatum correction component 3 is engaged with the housing 1, which exerts a compressive force on the pectus excavatum correction component 3, allowing it to adhere tightly to the patient's skin and thereby increasing the stability of the pectus excavatum correction component 3.

[0047] To achieve the purpose of snapping the pectus excavatum orthosis 3 with the housing 1, the housing 1 is provided with raised portions 11 on both sides of the top end. These raised portions 11 are adapted to fit into the grooves 35 of the pectus excavatum orthosis 3. When the grooves 35 on the pectus excavatum orthosis 3 are inserted into the raised portions 11, the pectus excavatum orthosis 3 can be snapped onto the housing 1.

[0048] In order to fix the shell part 1 on the patient's body, the wrapping arm 2 passes through the shell part 1, and the locking member 4 passes through the locking hole 25 provided on the wrapping arm 2. When in use, the two ends of the wrapping arm 2 are wrapped around the patient's pectus excavatum to the patient's back, and the shell part 1 can be put on the patient's body by passing the locking member 4 through the locking hole 25 on the wrapping arm 2. During this process, the shell part 1 will squeeze the pectus excavatum orthosis 3, so that the adhesive 34 on the pectus excavatum orthosis 3 can better fit the patient's skin, thereby achieving the purpose of stabilizing the pectus excavatum orthosis 3; after the adhesive 34 on the pectus excavatum orthosis 3 is firmly fitted to the patient's skin, the locking member 4 can be removed, and then the shell part 1 and the wrapping arm 2 can be removed from the patient's body, thereby reducing the burden of the orthotic device on the patient's body.

[0049] Furthermore, as attached Figure 7 The locking member 4 comprises a sphere 41, a column 42 and a contact plate 43. The sphere 41 is arranged at the top of the locking member 4, the column 42 is located in the middle of the locking member 4, and the upper end of the column 42 is connected to the bottom end of the sphere 41, and the contact plate 43 is connected to the lower end of the column 42.

[0050] Furthermore, the diameter of the sphere 41 is slightly larger than the outer diameter of the locking hole 25. The cylinder 42 is located in the middle of the locking member 4, and the diameter of the cylinder 42 is equal to or slightly smaller than the diameter of the locking hole 25. In addition, the height of the cylinder 42 is equal to twice the thickness of the wrapping arm 2; in addition, the contact plate 43 is connected to the lower end of the cylinder 42, and the center point of one side of the contact plate 43 coincides with the center point of the bottom end of the cylinder 42, and the length of the contact plate 43 extending from the center point to both ends is greater than the diameter of the cylinder 42. The wrapping arm 2 is generally made of nylon, and the wrapping arm 2 has good elasticity, so that the sphere 41 can freely pass through the wrapping arm 2. When in use, the sphere 41 passes through the locking hole 25, and the outer circumference of the cylinder 42 contacts the inner circumference of the locking hole 25; at this time, the contact plate 43 presses against one side of the wrapping arm 2, and the sphere 41 presses against the other side of the wrapping arm 2, so that the wrapping arm 2 can be fixed, thereby achieving the purpose of fixing the shell member 1 on the patient.

[0051] In order to achieve the purpose of adjusting the overall length of the pectus excavatum correction device, as shown in the attached Figure 4 The housing 1 includes a channel 12, a first stopper 13, and a second stopper 14. Specifically, the housing 1 has a channel 12 extending along its length. The channel 12 defines a rectangular space. The first stopper 13 is disposed on the upper wall of the channel 12, and the second stopper 14 is disposed on the lower wall of the channel 12.

[0052] Furthermore, the channel 12 of the housing 1 is provided with a wrapping arm 2. The wrapping arm 2 includes a first wrapping arm 21 and a second wrapping arm 22. Specifically, a first abutment block 26 is provided in the middle of the first wrapping arm 21, and the first wrapping arm 21 has a first end 23 along its length. A second abutment block 27 is provided in the middle of the second wrapping arm 22, and the second wrapping arm 22 has a second end 24 opposite the first wrapping arm 21. In this manner, the first and second wrapping arms 21, 22 can be wrapped around the patient's back on both sides of the body.

[0053] Furthermore, locking holes 25 are provided near both ends of the winding arm 2. The locking holes 25 include a first locking hole 251 and a second locking hole 252. The first winding arm 21 is provided with a first locking hole 251 at the first end 23, and the first locking hole 251 is a circular hole structure; the second winding arm 22 is provided with a second locking hole 252 at the second end 24, and the second locking hole 252 is the same as the first locking hole 251. In addition, in this embodiment, the end of the first winding arm 21 opposite to the first end 23 is also provided with a first locking hole 251, and the end of the second winding arm 22 opposite to the second end 24 is also provided with a second locking hole 252, as shown in the attached Figure 6 When in use, if the patient is small, the first wrapping arm 21 or the second wrapping arm 22 can be removed, and only one wrapping arm can be used to wrap around the patient's body, and the locking member 4 can be passed through the first locking hole 251 of the first wrapping arm, or the locking member 4 can be passed through the second locking hole 252 of the second wrapping arm 22, so that the housing 1 can be fixed on the patient's body.

[0054] Furthermore, as attached Figure 5 As described, the first supporting block 26 in the middle of the first wrapping arm 21 is adapted to the first blocking block 13, so that the first blocking block 13 limits the first wrapping arm 21 toward the second end 24; the second supporting block 27 in the middle of the second wrapping arm 22 is adapted to the second blocking block 14, so that the second blocking block 14 limits the second wrapping arm 22 toward the first end 23; and the space of the channel 12 in the shell part 1 is limited. At the same time, the patient can only pull the first wrapping arm 21 or the second wrapping arm 22. Such a design can prevent the shell part 1 from falling off the first wrapping arm 21 and the second wrapping arm 22.

[0055] Furthermore, the first blocking block 13 and the second blocking block 14 are both in the shape of an oblique triangle, and the first blocking block 13 and the second blocking block 14 are mirror-symmetrical about the exact center point of the channel 12. The first abutting block 26 provided in the middle of the first winding arm 21 is in the shape of an oblique triangle. The inclination angle of the first abutting block 26 matches the inclination angle of the first blocking block 13, and can pull the first winding arm 21 toward the first end 23 but cannot pull the first winding arm 21 toward the second end 24, thereby achieving the housing 1 to limit the first winding arm 21 toward the second end 24. The second abutting block 27 provided in the middle of the second winding arm 22 is in the shape of an oblique triangle. The inclination angle of the second abutting block 27 matches the inclination angle of the second blocking block 14, and can pull the second winding arm 22 toward the second end 24 but cannot pull the second winding arm 22 toward the first end 23, thereby achieving the housing 1 to limit the second winding arm 22 toward the first end 23. Among them, when only limiting in one direction, an inclined triangle can achieve a better effect than an inclined rectangle or other shapes. In this way, the patient can pull the first wrapping arm 21 or the second wrapping arm 22 to achieve the purpose of changing the overall length of the funnel chest correction device.

[0056] During use, if the patient is smaller, the second wrapping arm 22 can be pulled toward the second end 24, and then the second wrapping arm 22 can be removed, and only the first wrapping arm 21 can be used to wrap around the patient's body to adapt to the patient's physical condition; if the patient is larger, the first wrapping arm 21 can be pulled toward the first end 23 to increase the overall length of the wrapping arm 2; if the overall length is still not enough, the second wrapping arm 22 can be pulled toward the second end 24 to increase the overall length of the wrapping arm 2 again to adapt to the patient's physical condition. During this process, the wrapping arm 2 fixes the shell part 1 on the patient's body, generates an extrusion force on the pectus excavatum orthosis 3, and makes the adhesive 34 on the pectus excavatum orthosis 3 fit together; when the adhesive 34 on the pectus excavatum orthosis 3 is firmly attached to the patient's skin, the locking part 4 can be removed, and then the shell part 1 and the wrapping arm 2 can be removed from the patient's body, which can reduce the burden of the orthotic device on the patient's body; the connecting part 32 on the pectus excavatum orthosis 3 gradually recovers its shape under the influence of the external application temperature; or the connecting part 32 and the protrusion 31 on the pectus excavatum orthosis 3 gradually recover their shape under the influence of the external application temperature, and move with the hook 5 that hooks the patient's left ribs and right ribs, thereby achieving the purpose of treating pectus excavatum.

[0057] Those skilled in the art will appreciate that, unless expressly stated otherwise, the singular forms "a", "an" and "the" used in this embodiment may also include plural forms. It should be further understood that the term "comprising" used in this embodiment refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements. In addition, "connected" or "coupled" as used herein may include wireless connections or wireless couplings. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

Claims

1. A pectus excavatum correction device (3), characterized in that: include: A protrusion (31) that can be basically placed in the concave part of the patient's pectus cavum, with hooks (5) that can hook the patient's ribs provided at both ends of the protrusion (31); a connecting portion (32) extending from the protrusion (31) in a first direction (A1) and a second direction (B1) to the outside of the protrusion (31), and a fitting portion (33) connected to the connecting portion (32) that can fit on the patient's chest cavity; wherein the connecting portion (32) is made of a memory alloy; or the connecting portion (32) and the protrusion (31) are both made of a memory alloy.

2. The pectus excavatum orthosis (3) according to claim 1, characterized in that: An adhesive (34) is provided on the laminating portion (33).

3. The pectus excavatum orthosis (3) according to claim 2, characterized in that: A groove (35) is provided on the side of the laminating portion (33) facing away from the adhesive (34).

4. A pectus excavatum correction device, characterized in that: include: The pectus excavatum orthosis (3) according to any one of claims 1 to 3; and a shell component (1); the pectus excavatum orthosis (3) can be snapped onto the shell component (1).

5. The pectus excavatum correction device according to claim 4, characterized in that: A protrusion (11) is provided on the shell part (1); when the groove (35) on the pectus excavatum orthosis (3) is plugged into the protrusion (11), the pectus excavatum orthosis (3) can be snapped onto the shell part (1).

6. The pectus excavatum correction device according to claim 4, characterized in that: Also includes: A wrapping arm (2) for wrapping around the patient, the wrapping arm (2) passing through the housing (1), and a locking hole (25) being provided near the end of the wrapping arm (2); and a locking member (4) for fixing the wrapping arm (2), the locking member (4) being capable of passing through the locking hole (25).

7. The pectus excavatum correction device according to claim 6, characterized in that: The locking member (4) comprises: a sphere (41) located at one end of the locking member (4); a column (42) located in the middle of the locking member (4), the upper end of the column (42) being connected to the lower end of the sphere; and a contact plate (43) located at the other end of the locking member (4), the contact plate (43) being connected to the lower end of the column (42).

8. The pectus excavatum correction device according to claim 7, characterized in that: The diameter of the sphere (41) is slightly larger than the diameter of the locking hole (25); the diameter of the column (42) is equal to or slightly smaller than the diameter of the locking hole (25), and the height of the column (42) is equal to twice the thickness of the winding arm (2); the center point of the contact plate (43) coincides with the center point of the lower end of the column (42), and the length extending from the center point of the contact plate (43) to both ends is greater than the diameter of the column (42).

9. The pectus excavatum correction device according to claim 6, characterized in that: A channel (12) is provided inside the shell (1), the channel (12) is in a rectangular shape, and a first blocking block (13) is provided on the upper wall of the channel (12), and a second blocking block (14) is provided on the lower wall of the channel (12); the winding arm (2) comprises: a first winding arm (21) for winding around the left side of the patient, a first abutting block (26) being provided in the middle; a second winding arm (22) for winding around the right side of the patient, a second abutting block (27) being provided in the middle; the locking hole (25) comprises: a first locking hole (251) provided at the first end (23) of the first winding arm (21), the first locking hole (251) being a circular hole structure; a second locking hole (252) provided at the second end (24) of the second winding arm (22), and the second locking hole (252) being the same as the first locking hole (251); wherein, The first blocking block (13) and the first abutting block (26) are adapted to each other, and the first blocking block (13) limits the first winding arm (21); The second blocking block (14) and the second abutting block (27) are adapted to each other, and the second blocking block (14) limits the position of the second winding arm (22); The patient can pull the first winding arm (21) toward the first end (23) and / or pull the second winding arm (22) toward the second end (24) according to his or her needs, thereby increasing the overall length of the device.

10. The pectus excavatum correction device according to claim 9, characterized in that: The first blocking block (13), the second blocking block (14), the first abutting block (26), and the second abutting block (27) are all in the shape of an oblique triangle.

Images