Combined device of artificial sternum, artificial clavicle and artificial rib

Abstract

The application discloses a combined device of artificial sternum, artificial clavicle and artificial rib, which comprises an artificial sternum, an artificial clavicle and an artificial rib; the artificial sternum comprises a sternum handle and a sternum body, and the upper edges of the sternum handle are respectively provided with sternum joint concaves; the artificial clavicle is provided with a clavicle joint shaft, the sternum joint concaves are in contact with the clavicle joint shaft, and a sternoclavicular joint is formed; the clavicle joint shaft is provided with a first clavicle connecting hole; the sternum handle is provided with a first sternum connecting hole; the artificial rib comprises a first rib segment, a second rib segment and a third rib segment, and the first rib segment and the third rib segment have the same width along a first direction; the left and right sides of the sternum handle and the sternum body are respectively connected with the first rib segment, and the third rib segment is connected with a normal rib stump on the side away from the artificial sternum. Through the connection between the artificial sternum and the artificial clavicle and the connection between the artificial sternum and the artificial rib, the anatomical form and the biological characteristics of the human body sternum, clavicle and rib can be simulated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, more particularly, to a combined device of artificial sternum, artificial clavicle and artificial rib. BACKGROUND

[0002] With the rapid development of the medical industry, medical equipment is particularly important. Since the tumor at the sternum handle part destroys the clavicle and sternoclavicular joint, the reconstruction material after resection has been a problem for clinical development. Currently, metal plates and metal chains are used to replace the sternum, clavicle and rib on the market, which affects the stability of the sternum, clavicle and rib and the function of the sternoclavicular joint. If the sternum, clavicle and rib are made into an integrated structure, not only does it limit the clinical performance of surgeons and the change of surgical plans to achieve the best clinical results, but also the patient cannot do joint activities up and down, left and right, and in a small range after the operation, thereby affecting the patient's quality of life.

[0003] The existing document 1 (CN114159191A) discloses a sternum combined device, which discloses a sternum plate, a sternum handle and a sternum body are arranged on the sternum handle, and the sternum handle is connected with the sternum body through bolts; the sternoclavicular connecting holes on both sides of the sternum handle are connected with the bilateral clavicles through ligaments or ligaments, and the sternum handle is directly connected with the bilateral clavicles, which will affect the joint activity. The above-mentioned scheme still does not solve the above-mentioned problems.

[0004] The existing document 2 (CN114159191A) discloses a 3D printing chest rib reconstruction device, which discloses a fixed device integrally formed by 3D printing of titanium alloy material, and does not form a sternoclavicular joint, and does not solve the above-mentioned technical problems.

[0005] The existing document 3 (CN215306573U) discloses a sternum fixing and sternoclavicular joint connecting device, which comprises a sternoclavicular joint block, a sternum combined block, a rib clamp, a sternum tail block, a sternoclavicular joint nail and a clavicle connecting nail, the left and right sides of the upper end of the sternoclavicular joint block are provided with sternoclavicular joint nails, and the sternoclavicular joint nails are connected with the clavicle connecting nails; the lower end of the sternoclavicular joint block is connected with the sternum combined block, the sternum combined block is composed of a plurality of sternum blocks connected in head-tail mode, each sternum block is provided with rib clamp installation grooves which are left-right symmetrical, a plurality of clamping grooves are arranged in the inner edge of the rib clamp installation groove and are in communication with the rib clamp installation groove, and the rib clamp is installed in the rib clamp installation groove and the clamping groove; the distal end of the rib clamp is provided with a rib claw, the side surface of the proximal end of the rib clamp is provided with a side protruding block, the proximal end of the rib clamp is installed in the rib clamp installation groove through a screw, and the side protruding block is clamped into one of the clamping grooves; the lower end of the sternum combined block is provided with the sternum tail block, the structure of the above-mentioned sternoclavicular joint block is complex, the left and right sides of the upper end of the sternoclavicular joint block are provided with sternoclavicular joint nails, and the sternoclavicular joint nails are connected with the clavicle connecting nails, and the overall joint activity capacity is limited, and the above-mentioned scheme still does not solve the above-mentioned technical problems. SUMMARY

[0006] Therefore, the application provides a combined device of artificial sternum, artificial clavicle and artificial rib, which comprises an artificial sternum, an artificial clavicle and an artificial rib.

[0007] The artificial sternum comprises a sternum stem and a sternum body connected with the sternum stem, and the upper edge of the sternum stem is provided with a sternum joint recess on both sides.

[0008] The artificial clavicle is provided with a clavicle joint shaft matched with the sternum joint recess on the side close to the sternum stem, the sternum joint recess is in contact with the clavicle joint shaft, and a sternoclavicular joint is formed.

[0009] The clavicle joint shaft is provided with at least two first clavicle connecting holes arranged in a first direction on the side close to the sternum joint recess, a second direction is a direction from the artificial sternum to the artificial clavicle or the artificial rib, and the first direction intersects with the second direction.

[0010] The sternum stem is provided with a first sternum connecting hole matched with the first clavicle connecting hole on the side close to the sternum joint recess.

[0011] The first clavicle connecting hole and the first sternum connecting hole are connected by a connecting piece, and the side of the artificial clavicle away from the sternum stem is connected with a normal clavicle stump.

[0012] The upper edge of the sternum stem is provided with a concave surface in the middle.

[0013] The artificial rib comprises a first rib segment, a second rib segment connected with the first rib segment, and a third rib segment connected with the second rib segment, the width of the first rib segment along the first direction is the same as the width of the third rib segment along the first direction, and the width of the second rib segment along the first direction is smaller than the width of the first rib segment along the first direction.

[0014] In the second direction, the length of the first rib segment is smaller than the length of the second rib segment, and the length of the second rib segment is smaller than the length of the third rib segment.

[0015] The left and right sides of the sternum stem and the sternum body are connected with the first rib segment, and the side of the third rib segment away from the artificial sternum is connected with a normal rib stump.

[0016] Preferably, the clavicle joint shaft is further provided with second clavicle connecting holes arranged in the first direction on the side close to the first clavicle connecting holes, and the diameter of the second clavicle connecting holes is 2.5-3 mm.

[0017] Preferably, the artificial clavicle is provided with a third clavicle connecting hole arranged along the second direction on the side away from the clavicle joint axis, and the third clavicle connecting hole has a diameter of 3.0-4.0 mm.

[0018] Preferably, the sternal joint concave is a semi-circular joint concave, and the clavicle joint axis is a semi-spherical protrusion.

[0019] Preferably, the first rib segment is provided with at least one first rib connecting hole arranged along the second direction; the second rib segment is provided with a second rib connecting hole extending along the second direction; and the third rib segment is provided with at least one third rib connecting hole arranged along the second direction.

[0020] Preferably, the first rib segment and the third rib segment have the same thickness along a third direction, and the second rib segment has a thickness along the third direction smaller than that of the first rib segment along the third direction, and the third direction intersects the first direction and the second direction.

[0021] Preferably, the sternal stem is provided with at least one sternal upper muscle group connecting hole arranged along the second direction on the side close to the concave surface.

[0022] Preferably, along a third direction, the thickness of the artificial clavicle on the side close to the sternal joint concave is greater than that on the side away from the sternal joint concave, and the third direction intersects the first direction and the second direction.

[0023] Preferably, the sternal stem and the first rib segment, and the sternal body and the first rib segment are connected by bolts.

[0024] Preferably, the sternal body comprises a first sub-sternal body and a second sub-sternal body connected to the first sub-sternal body, and the first sub-sternal body and the second sub-sternal body are both provided with a second sternal connecting hole extending along the first direction.

[0025] The sternal stem is provided with a third sternal connecting hole arranged along the second direction and extending along the first direction.

[0026] Compared with the prior art, the combination device of the artificial sternum, the artificial clavicle and the artificial rib provided by the present application at least has the following beneficial effects:

[0027] The application can simulate the anatomical form and biological characteristics of human sternum, clavicle and rib, repair defects of sternum, clavicle and rib, restore the anatomical function of sternoclavicular joint and chest rib, achieve personalized and precise customization, stabilize the thoracic shape, restore the normal physiological shape of thoracic shape, protect the respiratory and heart function, and improve the quality of life.

[0028] Of course, any product implementing the present application does not necessarily need to achieve all the technical effects described above at the same time.

[0029] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0030] The accompanying drawings incorporated in and forming a part of the specification illustrate embodiments of the present application and, together with the description, serve to explain the principles of the application.

[0031] Figure 1 is a structural schematic view of a combined device of artificial sternum, artificial clavicle and artificial rib provided by the present application;

[0032] Figure 2 is a structural schematic view of an artificial sternum provided by the present application;

[0033] Figure 3 is a structural schematic view of a combined structure of sternum stem and artificial clavicle provided by the present application;

[0034] Figure 4 is a structural schematic view of a part of sternum stem provided by the present application;

[0035] Figure 5 is a structural schematic view of an artificial clavicle provided by the present application;

[0036] Figure 6 is a structural schematic view of an artificial rib provided by the present application. DETAILED DESCRIPTION

[0037] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. Note that the relative arrangement of the components and steps illustrated in these embodiments, numerical expressions, and numerical values are merely examples, and do not limit the scope of the present application unless otherwise specifically stated.

[0038] The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the scope of the application, its application, or uses.

[0039] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, such techniques, methods, and apparatus should be considered as being part of the specification.

[0040] In all of the examples shown and discussed herein, any specific values should be interpreted as merely exemplary, and not as a limitation. Thus, other examples of the exemplary embodiments can have different values.

[0041] It should be noted that like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it is not necessary to discuss it further in subsequent drawings.

[0042] Figure 1 is a structural schematic view of a combined device of an artificial sternum, an artificial clavicle, and an artificial rib provided by the present application; Figure 2 is a structural schematic view of an artificial sternum provided by the present application; Figure 3 is a structural schematic view of a combined structure of a sternum stem and an artificial clavicle provided by the present application; Figure 4 is a structural schematic view of a partial sternum stem provided by the present application; Figure 5 is a structural schematic view of an artificial clavicle provided by the present application; Figure 6 is a structural schematic view of an artificial rib provided by the present application. Referring to Figures 1-6 the drawing, the present embodiment provides a combined device of an artificial sternum, an artificial clavicle, and an artificial rib, which includes an artificial sternum 1, an artificial clavicle 2, and an artificial rib 5;

[0043] The artificial sternum 1 includes a sternum stem 11 and a sternum body 15 connected to the sternum stem 11, and the upper edge of the sternum stem 11 is provided with sternum joint recesses 110 on both sides thereof;

[0044] The artificial clavicle 2 is provided with a clavicle joint shaft 21 on the side close to the sternum stem 11, which cooperates with the sternum joint recesses 110, and the sternum joint recesses 110 are in contact with the clavicle joint shaft 21, and form a sternoclavicular joint 3;

[0045] The clavicular articulation shaft 21 is provided with at least two first clavicular connecting holes 22 on one side close to the sternoclavicular joint recess 110, the first clavicular connecting holes 22 are arranged along the first direction X, the second direction Y is the direction from the artificial sternum 1 to the artificial clavicle 2 or the artificial rib, and the first direction X intersects the second direction Y;

[0046] The sternum stem 11 is provided with a first sternum connecting hole 12 matched with the first clavicular connecting hole 22 on one side close to the sternoclavicular joint recess 110;

[0047] The first clavicular connecting hole 22 and the first sternum connecting hole 12 are connected by a connecting piece 4, and the artificial clavicle 2 is connected to the normal clavicle stump (not shown in the figure) on the side away from the sternum stem 11;

[0048] The upper edge of the sternum stem 11 is provided with a concave surface 13 in the middle;

[0049] The artificial rib 5 includes a first rib segment 51, a second rib segment 52 connected to the first rib segment 51, and a third rib segment 53 connected to the second rib segment 52, the width of the first rib segment 51 along the first direction X is the same as that of the third rib segment 53, and the width of the second rib segment 52 along the first direction X is smaller than that of the first rib segment 51 along the first direction X;

[0050] In the second direction Y, the length of the first rib segment 51 is smaller than that of the second rib segment 52, and the length of the second rib segment 52 is smaller than that of the third rib segment 53;

[0051] The left and right sides of the sternum stem 11 and the sternum body 15 are respectively connected to the first rib segment 51, and the third rib segment 53 is connected to the normal rib stump (not shown in the figure) on the side away from the artificial sternum 1.

[0052] Specifically, the combined device of the artificial sternum, the artificial clavicle and the artificial rib is a detachable combined device, which includes an artificial sternum 1, an artificial clavicle 2 and at least one artificial rib 5, the artificial sternum 1 is a three-dimensional arc, the artificial clavicle 2 is a unilateral artificial clavicle or a bilateral artificial clavicle, such as a left artificial clavicle and / or a right artificial clavicle, the artificial clavicle 2 is in the shape of “S”, and the material of the artificial clavicle 2 can be pure titanium and titanium alloy; the artificial rib 5 is arc-shaped, the number of the artificial rib 5 can be 12, which is 6 pairs of artificial ribs 5, and the material of the artificial rib can be titanium alloy;

[0053] The artificial sternum 1 comprises a sternum stem 11 and a sternum body 15, the bottom end of the sternum stem 11 is detachably connected with the top end of the sternum body 15, for example, the sternum stem 11 is connected with the sternum body 15 by bolts (not shown in the figure), and a sternum joint recess 110 is arranged on both sides of the upper edge of the sternum stem 11, the sternum joint recess 110 is a semi-circular joint recess, forming an artificial joint disc, the artificial sternum 1 can be made of titanium alloy, that is, the sternum stem 11 and the sternum body 15 can be made of titanium alloy;

[0054] The inner end of the artificial clavicle 2 is provided with a clavicle joint shaft 21 which cooperates with the sternum joint recess 110, the clavicle joint shaft 21 is a semi-spherical protrusion, constituting an artificial joint shaft;

[0055] The sternum joint recess 110 is in contact with the clavicle joint shaft 21, and forms a sternoclavicular joint 3, which is the only joint between the upper limb bones and the trunk bones, and is a complete joint disc, the sternoclavicular joint 3 can be connected with the sternum upper muscle group by a connecting piece 4 and a soft connection, to maintain the joint movement function;

[0056] The clavicle joint shaft 21 is provided with a plurality of first clavicle connecting holes 22 on the side close to the sternum joint recess 110, the plurality of first clavicle connecting holes 22 are arranged along a first direction X, a second direction Y is a direction from the artificial sternum 1 to the artificial clavicle 2 or the artificial rib 5, and the first direction X intersects the second direction Y;

[0057] The sternum stem 11 is provided with a first sternum connecting hole 12 on the side close to the sternum joint recess 110, the first sternum connecting hole 12 cooperates with the first clavicle connecting hole 22;

[0058] The first clavicle connecting hole 22 and the first sternum connecting hole 12 are connected by a connecting piece 4, which can be a ligament or a cable lock, wherein the ligament is an artificial ligament, and the cable lock is a metal cable lock, in order to better utilize the connecting piece 4 to connect the sternum joint recess 110 and the clavicle joint shaft 21, the first clavicle connecting hole 22 and the first sternum connecting hole 12 can be designed as inclined holes, if the first clavicle connecting hole 22 and the first sternum connecting hole 12 are both less than 2mm, the artificial ligament or cable will be affected, if the first clavicle connecting hole 22 and the first sternum connecting hole 12 are both greater than 4mm, the arrangement of other hole distances will be affected, therefore, the hole diameter of the artificial clavicle 2 connecting hole and the first clavicle connecting hole 22 is designed to be 2-4mm, which not only facilitates the artificial ligament or cable to pass through, thereby facilitating the operation of medical personnel, and further reducing the operation time, but also prevents affecting the arrangement of other hole distances;

[0059] The connecting piece 4 can pass through the first sternal connecting hole 12 and the first clavicular connecting hole 22 to soft-connect the sternoclavicular joint 3, and the sternoclavicular joint 3 can be soft-connected by an artificial ligament in the shape of "8" to more effectively meet the biomechanical requirements and joint function recovery, and the sternoclavicular joint 3 can be appropriately made to have up-down, front-back and small-range rotary movements;

[0060] The artificial clavicle 2 is connected to the normal clavicle stump on the side away from the sternal stem 11, that is, the outer end of the artificial clavicle 2 is connected to the normal clavicle stump;

[0061] The upper edge of the sternal stem 11 is provided with a concave surface 13, which is more conducive to the recovery of the normal physiological shape of the thoracic cage and meets the biomechanical requirements;

[0062] The artificial rib 5 is of an integral structure, and the artificial rib 5 comprises a first rib segment 51, a second rib segment 52 and a third rib segment 53, the tail end of the first rib segment is connected to the head end of the second rib segment 52, and the tail end of the second rib segment 52 is connected to the head end of the third rib segment 53; when the second direction Y is the direction in which the artificial sternum 1 points to the artificial rib 5, along the first direction X, the width w1 of the first rib segment 51 is the same as the width w3 of the third rib segment 53, and the width w2 of the second rib segment 52 is smaller than the width w1 of the first rib segment 51, and the weight of the artificial rib 5 is reduced by narrowing the width of the second rib segment 52;

[0063] If the width of the first rib segment 51 and the third rib segment 53 along the first direction X is less than 1.2 mm, the firmness of the first rib segment 51 and the third rib segment 53 cannot be guaranteed, and if the width of the first rib segment 51 and the third rib segment 53 along the first direction X is greater than 1.5 mm, the weight of the first rib segment 51 and the third rib segment 53 is increased, therefore, the width of the first rib segment 51 and the third rib segment 53 along the first direction X is designed to be 12-15 mm, which not only guarantees the firmness of the first rib segment 51 and the third rib segment 53, but also reduces the weight of the first rib segment 51 and the third rib segment 53, so that the artificial rib 5 fluctuates with the respiratory movement, thereby increasing the lung capacity;

[0064] If the width of the second rib segment 52 along the first direction X is less than 9 mm, the firmness of the second rib segment 52 cannot be guaranteed, and if the width of the second rib segment 52 along the first direction X is greater than 11 mm, the weight of the second rib segment 52 is increased, therefore, the width of the second rib segment 52 along the first direction X is designed to be 9-11 mm, which not only guarantees the firmness of the second rib segment 52, but also reduces the weight of the second rib segment 52, so that the artificial rib 5 fluctuates with the respiratory movement, thereby increasing the lung capacity.

[0065] In the second direction Y, the length L1 of the first rib segment 51 is less than the length L2 of the second rib segment 52, and the length L2 of the second rib segment 52 is less than the length L3 of the third rib segment 53, that is, the length L1 of the first rib segment 51 is the shortest, and the narrowing of the second rib segment 52 and the length reduction of the first rib segment 51 cooperate to simulate the human costal cartilage structure, so as to meet the biomechanical requirements and the reconstruction of anatomy and function;

[0066] The first rib segment 51 is connected to the left and right sides of the manubrium 11 and the sternum 15, respectively, for example, the outer end of the manubrium 11 is detachably connected to the first rib segment 51 of the first pair of artificial ribs 5; in the first direction, the outer end of the sternum 15 is detachably connected to the first rib segment 51 of the second pair of artificial ribs to the first rib segment 51 of the sixth pair of artificial ribs, for example, bolts (not shown in the figure) are used to connect the manubrium 11 and the first rib segment 51, and the sternum 15 and the first rib segment 51; the third rib segment 53 is connected to the normal rib stump (not shown in the figure) away from the artificial sternum 1, that is, the outer end of the third rib segment 53 is connected to the normal rib stump.

[0067] It should be noted that: continuing to refer to Figure 1 As shown in the figure, the combination device of the artificial sternum, the artificial clavicle and the artificial rib includes the combination between the manubrium 11 and the sternum 15, the combination between the manubrium and the artificial clavicle 2, and the combination between the artificial sternum 1 and the artificial rib 5. In clinical application, different implant devices are selected for implantation according to the defect site of the patient's chest and rib and clavicle and the defect area, so as to achieve personalized and precise customization, thereby eliminating the disadvantages of lack of repair and reconstruction materials after large-area resection of bone tissue by a clinician, so as to completely eradicate the lesion and be beneficial to prolong the life of the patient.

[0068] In addition, appropriate artificial sternums 1 and artificial clavicles 2 can also be selected flexibly, which conforms to the physiological function of the sternoclavicular joint, and the reconstructed sternoclavicular joint has up-down, left-right and small-range joint movement functions, which does not affect the life quality of the patient. It can be understood that: the reconstruction of the above-mentioned sternoclavicular joint 3 is designed according to the structure and function of the human sternoclavicular joint, which meets the biomechanical requirements and anatomical structure of the human body;

[0069] As can be seen from the above embodiment, the combination device of the artificial sternum, the artificial clavicle and the artificial rib provided by the embodiment at least achieves the following beneficial effects:

[0070] The connection between the artificial sternum 1 and the artificial clavicle 2 and the connection between the artificial sternum 1 and the artificial rib 5 can not only simulate the anatomical form and biological characteristics of the human sternum, clavicle and rib, but also restore the anatomical function of the sternoclavicular joint and the chest rib, so as to achieve personalized and precise customization, stabilize the thoracic shape, restore the normal physiological shape of the thoracic shape, and protect the respiratory and cardiac functions, thereby improving the quality of life. In addition, the upper edge of the sternum handle 11 is designed with a sternum joint recess 110 on both sides, and the inner end of the artificial clavicle 2 is provided with a clavicle joint shaft 21 matched with the sternum joint recess 110. The sternum joint recess 110 is in contact with the clavicle joint shaft 21, and forms a sternoclavicular joint 3. The sternoclavicular joint 3 is connected between the artificial sternum 1 and the artificial clavicle 2, which can more effectively stabilize the thoracic shape and structure, prevent injury to the subclavian vein and innominate vein, and protect the thoracic orifice passage. In addition, it is simple and easy to use, stable and reliable in quality, meets the biomechanical requirements and anatomical and functional reconstruction, and can also maintain the joint activity function by using the sternoclavicular joint 3.

[0071] In one embodiment, continuing to refer to Figure 3 As shown in the figure, the clavicle joint shaft 21 is also provided with a second clavicle connecting hole 23 arranged along the first direction X on the side close to the first clavicle connecting hole 22. The diameter of the second clavicle connecting hole 23 is 2.5-3 mm.

[0072] Specifically, the clavicle joint shaft 21 is also provided with a second clavicle connecting hole 23 arranged along the first direction X on the side close to the first clavicle connecting hole 22. The second clavicle connecting hole 23 is a backup hole for connecting the artificial clavicle. Through the second clavicle connecting hole 23, the connection of the sternoclavicular joint 3 can be further reinforced in case of accident. The number of the second clavicle connecting hole 23 is 3, and the three second clavicle connecting holes 23 are arranged along the first direction X.

[0073] If the diameter of the second clavicle connecting hole 23 is less than 2.5 mm, the artificial ligament or cable will be affected. If the diameter of the second clavicle connecting hole 23 is greater than 3 mm, the arrangement of other hole distances will be affected. Therefore, the diameter of the second clavicle connecting hole 23 is designed to be 2.5-3 mm, which can not only avoid the passing of the artificial ligament or cable, but also avoid affecting the arrangement of other hole distances.

[0074] In one embodiment, continuing to refer to Figure 3 and Figure 5 As shown in the figure, the artificial clavicle 2 is provided with a third clavicle connecting hole 24 arranged along the second direction Y on the side away from the clavicle joint shaft 21. The diameter of the third clavicle connecting hole is 3.0-4.0 mm.

[0075] Specifically, the third clavicle connecting holes 24 are arranged on the side of the artificial clavicle 2 away from the clavicular joint axis 21 along the second direction Y. The third clavicle connecting holes 24 not only reduce the overall weight of the artificial clavicle 2, but also facilitate the embedding of the sternalis group into the third clavicle connecting holes 24. In addition, the third clavicle connecting holes 24 are used to fix the artificial clavicle 2 to the normal clavicle stump. It should be noted that the number of the third clavicle connecting holes 24 is determined according to the length of the artificial clavicle 2, which is not described here.

[0076] If the diameter of the third clavicle connecting hole is less than 3.0 mm, the effect of reducing the weight of the artificial clavicle 2 cannot be achieved. If the diameter of the third clavicle connecting hole is greater than 4.0 mm, the muscle tissue cannot be embedded into the artificial clavicle 2 (prosthesis), thereby resulting in poor tissue compatibility. Therefore, the diameter of the third clavicle connecting hole is designed to be 3.0 mm-4.0 mm, which not only reduces the weight of the artificial clavicle 2, but also facilitates the embedding of the muscle tissue into the artificial clavicle 2 (prosthesis), thereby resulting in good tissue compatibility.

[0077] In one embodiment, continuing to refer to FIGS. 1-3, Figure 1 and Figure 2 the sternal handle 11 is provided with at least one sternalis group connecting hole 14 on the side close to the concave surface 13, and the sternalis group connecting holes 14 are arranged along the second direction Y.

[0078] Specifically, the sternal handle 11 is provided with a plurality of sternalis group connecting holes 14, such as three sternalis group connecting holes 14, on the side close to the concave surface 13, and the sternalis group connecting holes 14 are arranged along the second direction Y. The number of the sternalis group connecting holes 14 can be adjusted according to the width of the sternal handle 11 along the second direction Y. The sternalis group connecting holes 14 can be inclined holes, which facilitate the embedding of the sternalis group into the artificial clavicle 2 and are more conducive to tissue compatibility.

[0079] In one embodiment, continuing to refer to FIGS. 1-3, Figure 6 the first rib segment 51 is provided with at least one first rib connecting hole 510 arranged along the second direction Y; the second rib segment 52 is provided with a second rib connecting hole 520 extending along the second direction Y; and the third rib segment 53 is provided with at least one third rib connecting hole 530 arranged along the second direction Y.

[0080] Specifically, the first rib segment 51 is provided with a first rib connecting hole 510 arranged along the second direction Y, and the diameter of the first rib connecting hole 510 is 2.5-3.5 mm, which is beneficial for the bolt (not shown in the figure) to pass through, facilitates the fixation of the first rib segment 51 with the sternum stem 11 or the sternum body 15, and facilitates the arrangement of the hole pitch. The number of the first rib connecting hole 510 can be one or two. When the first rib connecting hole 510 is two, the first first rib connecting hole 510 (the first rib connecting hole 510 close to the side of the artificial sternum 1) can fix the first rib segment 51 with the sternum stem 11 or the sternum body 15, and the second first rib connecting hole 510 (the first rib connecting hole 510 away from the side of the artificial sternum 1) is a spare hole to prevent accidental reinforcement of the connection of the sternum stem 11 or the sternum body 15.

[0081] The second rib segment 52 is provided with a second rib connecting hole 520 extending along the second direction Y. The second rib connecting hole 520 not only achieves the effect of weight reduction and thinning of the second rib segment 52, but also facilitates the muscle tissue to be embedded in the second rib connecting hole 520, thereby more effectively fixing the artificial rib 5. The second rib connecting hole 520 can be oval or rectangular, and the specific shape can be set according to the actual situation. If the length of the second rib connecting hole 520 extending along the second direction Y is less than 3 mm, the purpose of weight reduction and thinning cannot be achieved. If the length of the second rib connecting hole 520 extending along the second direction Y is greater than 30 mm, the second rib segment 52 is not firm. Therefore, the length of the second rib connecting hole 520 extending along the second direction Y is designed to be 3-30 mm, which not only achieves the purpose of weight reduction and thinning, but also facilitates the firmness of the second rib segment 52.

[0082] The third rib segment 53 is provided with a plurality of third rib connecting holes 530 arranged along the second direction Y. The third rib connecting hole 530 not only reduces the overall weight of the artificial rib 5, but also facilitates the muscle to be embedded in the third rib connecting hole 530, and simultaneously utilizes part of the third rib connecting hole 530 to fix and connect the artificial rib 5 with the normal rib stump.

[0083] It should be noted that the above description continues to refer to Figure 1 and Figure 2As shown, the fourth sternal connecting holes 18 are arranged along the first direction on the outer side of the sternal stem 11 and the sternal body 15, and the fourth sternal connecting holes 18 are matched with the first rib connecting holes 510, and the sternal stem 11 and the first rib segment 51, and the sternal body 15 and the first rib segment 51 are fixedly connected by bolts in turn through the first rib connecting holes 510 and the fourth sternal connecting holes 18; the first rib connecting holes 510 and the fourth sternal connecting holes 18 can be straight holes, which is conducive to the bolts through the first rib connecting holes 510 and the fourth sternal connecting holes 18, so as to fix and connect the sternal stem 11 and the first rib segment 51, and the sternal body 15 and the first rib segment 51.

[0084] In one embodiment, continuing to refer to Figure 6 As shown, the first rib segment 51 and the third rib segment 53 have the same thickness along the third direction Z, and the thickness of the second rib segment 52 along the third direction Z is less than the thickness of the first rib segment 51 along the third direction Z, and the third direction Z intersects the first direction X and the second direction Y.

[0085] Specifically, the thickness of the first rib segment 51 along the third direction Z is δ3, the thickness of the third rib segment 53 along the third direction Z is δ4, and the thickness of the second rib segment 52 along the third direction Z is δ5, wherein δ3=δ4, δ5<δ3, and the third direction Z intersects the first direction X and the second direction Y. By adopting this scheme, the second rib segment 52 is further thinned on the basis of narrowing, cooperates with the first rib segment 51, and more effectively simulates the human rib cartilage structure, so as to meet the biomechanical requirements and the reconstruction of anatomy and function;

[0086] If the thickness of the first rib segment 51 and the third rib segment 53 along the third direction Z is less than 1.5 mm, the firmness of the first rib segment 51 and the third rib segment 53 cannot be guaranteed, and if the thickness of the first rib segment 51 and the third rib segment 53 along the third direction Z is greater than 2 mm, the weight of the first rib segment 51 and the third rib segment 53 is increased, thereby increasing the overall weight of the artificial rib 5. Therefore, the thickness of the first rib segment 51 and the third rib segment 53 along the third direction Z is designed to be 1.5-2 mm, which not only guarantees the firmness of the first rib segment 51 and the third rib segment 53, but also is conducive to reducing the weight of the first rib segment 51 and the third rib segment 53, thereby reducing the overall weight of the artificial rib 5, and further the artificial rib 5 can fluctuate with respiration, thereby increasing the lung capacity;

[0087] If the thickness of the second rib segment 52 along the third direction Z is less than 0.9 mm, the firmness of the second rib segment 52 cannot be guaranteed, and if the thickness of the second rib segment 52 along the third direction Z is greater than 1.2 mm, the weight of the second rib segment 52 is increased. Therefore, the thickness of the second rib segment 52 along the third direction Z is designed to be between 0.9 mm and 1.2 mm, which not only guarantees the firmness of the second rib segment 52, but also reduces the weight of the second rib segment 52.

[0088] In an embodiment, continuing to refer to Figure 5 As shown in the drawings, along the third direction Z, the thickness of the artificial clavicle 2 near the sternoclavicular joint recess 110 is greater than the thickness of the artificial clavicle 2 away from the sternoclavicular joint recess 110, and the third direction Z intersects the first direction X and the second direction Y.

[0089] Specifically, the thickness of the artificial clavicle 2 near the sternoclavicular joint recess 110 along the third direction Z is δ1, and the thickness of the artificial clavicle 2 away from the sternoclavicular joint recess 110 along the third direction Z is δ2, where δ1>δ2, that is, the thickness of the proximal end of the artificial clavicle 2 along the third direction Z is greater than the thickness of the distal end of the artificial clavicle 2 along the third direction Z. With this scheme, under the premise of guaranteeing the firmness of the artificial clavicle 2, not only can the weight of the artificial clavicle 2 be reduced, but also the plasticity and fixation of the artificial clavicle 2 during surgery are facilitated.

[0090] Alternatively, along the third direction Z, the thickness of the artificial clavicle 2 gradually decreases, which can be understood as: gradually thinning from the proximal end of the artificial clavicle 2 to the distal end of the artificial clavicle 2, that is, the proximal end of the artificial clavicle 2 to the distal end of the artificial clavicle 2 is gradually tapered; With this scheme, not only can the firmness of the artificial clavicle 2 be guaranteed, but also the distal end of the artificial clavicle 2 can be thinned, thereby more facilitating the plasticity and fixation of the artificial clavicle 2 during surgery;

[0091] Of course, the proximal end of the artificial clavicle 2 to the distal end of the artificial clavicle 2 can also be thinned, such as along the first direction X, the width of the artificial clavicle 2 near the clavicular joint axis 21 is greater than the width of the artificial clavicle 2 near the clavicular joint axis 21, and in addition, along the first direction X, the width of the artificial clavicle 2 gradually decreases; gradually narrowing and thinning the width and thickness of the artificial clavicle 2 from the proximal end to the distal end, under the premise of guaranteeing the firmness of the artificial clavicle 2, gradually reducing the weight of the artificial clavicle 2 and the distal end of the artificial clavicle 2 after being thinned and narrowed, more facilitating the plasticity and fixation of the artificial clavicle 2 during surgery.

[0092] In an embodiment, continuing to refer to Figures 1-2 As shown in the drawings, the sternum body 15 includes a first sub-sternal body 151 and a second sub-sternal body 152 connected to the first sub-sternal body 151, and the first sub-sternal body 151 and the second sub-sternal body 152 are both provided with a second sternum connecting hole 16 extending along the first direction X;

[0093] The sternal stem 11 is provided with third sternal connecting holes 17 arranged along the second direction Y and along the first direction X, the third sternal connecting holes 17 extend along the first direction X.

[0094] Specifically, the sternal body 15 includes a first sub-sternal body 151 and a second sub-sternal body 152, the first sub-sternal body 151 is detachably connected between the sternal stem 11 close to one end of the first sub-sternal body 151 and the sternal stem 11 close to one end of the first sub-sternal body 151, and the first sub-sternal body 151 is detachably connected between the second sub-sternal body 152 close to one end of the first sub-sternal body 151 and the first sub-sternal body 151 away from the sternal stem 11, for example, the sternal stem 11 and the first sub-sternal body 151, and the first sub-sternal body 151 and the second sub-sternal body 152 are connected by bolts (not shown in the figure); thereby, on the basis of the combination between the sternal stem 11 and the sternal body 15, the combination between the sternal stem and the artificial clavicle 2, and the combination between the artificial sternum 1 and the artificial rib 5, the combination between the first sub-sternal body 151 and the second sub-sternal body 152 is added, which is more conducive to selecting different implant devices according to the defect site and the defect area of the patient's chest and rib and clavicle in clinical application, thereby further achieving personalized and precise customization;

[0095] The first sub-sternal body 151 and the second sub-sternal body 152 are both provided with second sternal connecting holes 16 extending along the first direction X, through the second sternal connecting holes 16, the weight of the first sub-sternal body 151 and the second sub-sternal body 152 can be reduced, and muscle tissue can be embedded in the second sternal connecting holes 16, thereby improving tissue compatibility; the second sternal connecting holes 16 can be designed as oval holes, rectangles, circles, sectors, triangles, etc., and the shape thereof is not limited further;

[0096] The sternal stem 11 is provided with third sternal connecting holes 17 arranged along the second direction Y and along the first direction X, the third sternal connecting holes 17 extend along the first direction X, through the third sternal connecting holes 17, the weight of the sternal stem 11 can be reduced, and muscle tissue can be embedded in the third sternal connecting holes 17, thereby improving tissue compatibility; of course, according to the width of the sternal stem 11, the number of the third sternal connecting holes 17 is designed, such as three third sternal connecting holes 17, the three third sternal connecting holes 17 are arranged in a triangular manner, and the third sternal connecting holes 17 can be oval holes, rectangles, circles, sectors, triangles, etc., and the shape thereof is not limited further.

[0097] In one embodiment, continuing to refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 , the length of the artificial clavicle 2 along the first direction X is 7cm-15cm, and the thickness of the artificial clavicle 2 along the third direction Z is 0.8cm-1.6cm;

[0098] The length of the artificial sternum 1 along the first direction is 11-15 cm, the length tolerance is plus or minus 3 mm, and the thickness of the sternum stem 11 along the third direction Z is 0.6-1.8 cm;

[0099] The length of the artificial rib 5 along the second direction Y is 6-15 cm, the width of the artificial rib 5 along the first direction X is 8-12 mm, and the thickness of the artificial rib 5 along the third direction Z is 1-3 mm.

[0100] Specifically, according to the different gender and height of the human body, artificial clavicles 2 of different lengths and thicknesses are designed, for example, the length of the artificial clavicle 2 along the first direction X can be 7-15 cm, if the thickness of the artificial clavicle 2 along the third direction Z is less than 0.8 cm, it is not conducive to the connection of the sternoclavicular joint 3, and if the thickness of the artificial clavicle 2 along the third direction Z is greater than 1.6 cm, it will crush the blood vessels and nerves under the artificial clavicle 2, therefore, the thickness of the artificial clavicle 2 along the third direction Z can be 0.8-1.6 cm, which not only facilitates the connection of the sternoclavicular joint 3, but also avoids crushing the blood vessels and nerves under the artificial clavicle 2;

[0101] According to the different gender and height of the human body, sternum stems 11 of different lengths and thicknesses are designed, if the thickness of the sternum stem 11 along the third direction Z is less than 0.6 cm, it will affect the connection and stability of the sternoclavicular joint 3, and if the thickness of the sternum stem 11 along the third direction Z is greater than 1.8 cm, it will crush the organs behind the sternum stem 11, therefore, the thickness of the sternum stem 11 along the third direction Z is designed to be 0.6-1.8 cm, which not only facilitates the connection and stability of the sternoclavicular joint 3, but also avoids crushing the organs behind the sternum stem 11; the thickness of the sternum stem 11 along the third direction Z is 0.6-1.2 cm, which can be suitable for female patients replacement; the thickness of the sternum stem 11 along the third direction Z is 0.8-1.5 cm, which can be suitable for male patients replacement.

[0102] According to the different gender and height of the human body, artificial ribs 5 of different lengths, thicknesses and widths are designed, for example, the length of the artificial rib 5 along the second direction Y is 6-15 cm, the width of the artificial rib 5 along the first direction X is 8-12 mm, and the thickness of the artificial rib 5 along the third direction Z is 1-3 mm, wherein the width tolerance and thickness tolerance of the artificial rib 5 are both plus or minus 2-5 mm.

[0103] It should be noted that the combination device of the artificial sternum, the artificial clavicle and the artificial rib can be mass-produced according to different specifications, medical personnel can flexibly select the artificial sternum 1, the artificial clavicle 2 and the artificial rib 5 according to the needs during the operation, which can greatly reduce the preparation time of the patient's operation, thereby reducing the patient's pain.

[0104] From the above embodiments, the combination device of the artificial sternum, the artificial clavicle and the artificial rib bone provided by the present application at least achieves the following beneficial effects:

[0105] The present application can simulate the anatomical form and biological characteristics of the human sternum, clavicle and rib bone by the connection between the artificial sternum and the artificial clavicle and the connection between the artificial sternum and the artificial rib bone, can not only repair the defects of the sternum, clavicle and rib bone, but also restore the anatomical function of the sternoclavicular joint and the chest rib bone, can achieve personalized and precise customization, can stabilize the thoracic shape, restore the normal physiological shape of the thoracic shape and protect the respiratory and heart functions, and thus can improve the quality of life; in addition, the sternoclavicular joint recess is designed on both sides of the upper edge of the sternum stem, the clavicular joint shaft matched with the sternoclavicular joint recess is arranged on the inner end of the artificial clavicle, the sternoclavicular joint recess is in contact with the clavicular joint shaft, and the sternoclavicular joint is formed, and the sternoclavicular joint is connected between the artificial sternum and the artificial clavicle, which can more effectively stabilize the thoracic shape and structure, prevent the injury of the subclavian vein and the innominate vein and protect the thoracic orifice passage, is simple and easy to use, is stable and reliable in quality, meets the requirements of biomechanics and the reconstruction of anatomy and function, and can also maintain the joint activity function by using the sternoclavicular joint.

[0106] Although some specific embodiments of the present application have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration, but not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A combination of artificial sternum, artificial clavicle and artificial rib, characterized in that, The artificial sternum, artificial clavicle and artificial rib; The artificial sternum comprises a sternum body and a sternum stem connected with the sternum body, and a sternum joint recess is arranged on both sides of the upper edge of the sternum stem; the sternum joint recess is a semicircular joint recess, forming an artificial joint disc; the sternum stem and the sternum body are made of titanium alloy; The artificial clavicle is provided with a clavicle joint shaft matched with the sternum joint recess on the side close to the sternum stem; the clavicle joint shaft is a semispherical protrusion, forming an artificial joint shaft; the sternum joint recess is in contact with the clavicle joint shaft, and a sternoclavicular joint is formed; the artificial clavicle is made of pure titanium and titanium alloy; The clavicle joint shaft is provided with at least two first clavicle connecting holes arranged in a first direction on the side close to the sternum joint recess; a second direction is a direction from the artificial sternum to the artificial clavicle or artificial rib; the first direction intersects the second direction; The sternum stem is provided with a first sternum connecting hole matched with the first clavicle connecting hole on the side close to the sternum joint recess; the first clavicle connecting hole and the first sternum connecting hole are inclined holes; The first clavicle connecting hole and the first sternum connecting hole are connected by a connecting piece; the artificial clavicle is connected with a normal clavicle stump on the side away from the sternum stem; The upper edge of the sternum stem is provided with a concave surface in the middle; The artificial rib is an integral structure, comprising a first rib segment, a second rib segment connected with the first rib segment, and a third rib segment connected with the second rib segment; the first rib segment and the third rib segment have the same width in the first direction; the width of the second rib segment in the first direction is smaller than that of the first rib segment; the artificial rib is made of titanium alloy; In the second direction, the length of the first rib segment is smaller than that of the second rib segment, and the length of the second rib segment is smaller than that of the third rib segment; the first rib segment and the third rib segment have the same thickness in a third direction; the thickness of the second rib segment in the third direction is smaller than that of the first rib segment; the third direction intersects the first direction and the second direction; The left and right sides of the sternum stem and the sternum body are connected with the first rib segment; the side of the third rib segment away from the artificial sternum is connected with a normal rib stump.

2. The combination of artificial sternum, artificial collarbone and artificial ribs according to claim 1, characterized in that The clavicle joint shaft is provided with a second clavicle connecting hole arranged in the first direction on the side close to the first clavicle connecting hole; the diameter of the second clavicle connecting hole is 2.5-3 mm.

3. The combination of artificial sternum, artificial collarbone and artificial ribs according to claim 2, characterized in that The artificial clavicle is provided with a third clavicle connecting hole arranged in the second direction on the side away from the clavicle joint shaft; the diameter of the third clavicle connecting hole is 3.0-4.0 mm.

4. The combination of artificial sternum, artificial collarbone and artificial ribs of claim 1, wherein, The first rib segment is provided with at least one first rib connecting hole arranged in the second direction; the second rib segment is provided with a second rib connecting hole extending in the second direction; and the third rib segment is provided with at least one third rib connecting hole arranged in the second direction.

5. The combination of artificial sternum, artificial collarbone and artificial ribs of claim 1, wherein, At least one upper sternal muscle group connecting hole is arranged on the side of the man-made sternum close to the concave surface, and the upper sternal muscle group connecting hole is arranged along the second direction.

6. The combination of artificial sternum, artificial collarbone and artificial ribs of claim 1, wherein, In the third direction, the thickness of the man-made clavicle close to the side of the sternoclavicular fossa is greater than the thickness of the man-made clavicle away from the side of the sternoclavicular fossa, and the third direction intersects with the first direction and the second direction.

7. The combination of artificial sternum, artificial collarbone and artificial ribs of claim 1, wherein, The first rib segment is connected to the sternum stem and the sternum body through a bolt.

8. The combination of artificial sternum, artificial clavicle and artificial ribs according to any one of claims 1-7, characterized in that, The sternum body comprises a first sub-sternal body and a second sub-sternal body connected to the first sub-sternal body, and the first sub-sternal body and the second sub-sternal body are both provided with a second sternum connecting hole extending along the first direction. The sternum stem is provided with a third sternum connecting hole arranged along the second direction and extending along the first direction.

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