CN116035775A

CN116035775A - Collarbone prosthesis

Info

Publication number: CN116035775A
Application number: CN202310346627.1A
Authority: CN
Inventors: 韩煜; 吕光远; 翟学毅; 王淇锋
Original assignee: Beijing AK Medical Co Ltd
Current assignee: Beijing AK Medical Co Ltd
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2023-05-02
Anticipated expiration: 2043-04-03
Also published as: CN116035775B

Abstract

The present invention provides a collarbone prosthesis comprising: a sternum connecting rod; the scapula connecting rod is arranged at intervals with the sternum connecting rod; the prosthesis body is connected between the sternum connecting rod and the scapula connecting rod, the prosthesis body is connected with the sternum connecting rod in an angle adjustable mode, and the prosthesis body is connected with the scapula connecting rod in an angle adjustable mode. The technical scheme of the application effectively solves the problem of poor suitability of the collarbone prosthesis in the related technology.

Description

Collarbone prosthesis

Technical Field

The invention relates to the field of medical instruments, in particular to a collarbone prosthesis.

Background

The collarbone is a bone connected with the axial skeleton in the upper limb, and acts as a stay bar to prop the upper limb away from the trunk, enlarge the visual field of people, enlarge the movable range of the upper limb and improve the labor efficiency of the upper limb. However, diseases such as clavicle tumor can cause pain at the clavicle part, thereby seriously affecting the life of patients. Currently, clavicle tumors are classified as benign tumors and malignant tumors, which belong to benign clavicle tumors, and the treatment commonly adopted is focal curettage of the bone graft. And malignant tumors require complete removal of the lesion by collarbone resection. However, the load-bearing capacity and the upper limb movement coordination capacity of the shoulder of a patient can be influenced after the collarbone is resected, and the protection capacity of soft tissues such as nerves, blood vessels and the like behind the collarbone is reduced. Therefore, in order to improve the dysfunction of the shoulder joint, maintain the stable position and movement of the shoulder joint, restore the normal morphology and function of the collarbone as much as possible, and most researchers in recent years claim bone reconstruction after collarbone resection.

The collarbone prosthesis is implanted after collarbone excision for bone reconstruction, and the collarbone prosthesis in the related art needs to be customized according to the collarbone size and shape of a patient due to the different collarbone sizes and shapes of different patients, so that the collarbone prosthesis has poor suitability. And the customized clavicle prosthesis cannot be adjusted when there is a deviation from the patient's clavicle size and shape.

Disclosure of Invention

The main object of the present invention is to provide a collarbone prosthesis, which solves the problem of poor adaptability of the collarbone prosthesis in the related art.

In order to achieve the above object, the present invention provides a collarbone prosthesis comprising: a sternum connecting rod; the scapula connecting rod is arranged at intervals with the sternum connecting rod; the prosthesis body is connected between the sternum connecting rod and the scapula connecting rod, the prosthesis body is connected with the sternum connecting rod in an angle adjustable mode, and the prosthesis body is connected with the scapula connecting rod in an angle adjustable mode.

Further, the prosthesis body comprises a first rod body and a second rod body, wherein the first end of the first rod body is connected with the first end of the second rod body in an angle adjustable manner, the second end of the first rod body is connected with the sternum connecting rod in an angle adjustable manner, and the second end of the second rod body is connected with the scapula connecting rod in an angle adjustable manner.

Further, when the angle between the first end of the first rod body and the first end of the second rod body is adjusted, the first rod body swings relative to the second rod body, so that the axis of the first rod body forms a first swinging plane; when the angle between the second end of the first rod body and the sternum connecting rod is adjusted, the first rod body swings relative to the sternum connecting rod so that the axis of the first rod body forms a second swinging plane; the first swing plane intersects the second swing plane.

Further, a first step structure is arranged at the first end of the first rod body, a second step structure is arranged at the first end of the second rod body, the first end of the first rod body is connected with the first end of the second rod body in an angle-adjustable manner through the first step structure and the second step structure, the step surface of the second step structure is opposite to the step surface of the first step structure, and the step surface of the first step structure and the step surface of the second step structure are parallel to the first swinging plane; the second end of the first rod body is provided with a third step structure, one end of the sternum connecting rod, which faces the second end of the first rod body, is provided with a fourth step structure, the second end of the first rod body is connected with the sternum connecting rod through the third step structure and the fourth step structure in an angle-adjustable mode, the step surface of the third step structure and the step surface of the fourth step structure are arranged in opposite directions, and the step surface of the third step structure and the step surface of the fourth step structure are parallel to the second swinging plane.

Further, when the angle between the first end of the first rod body and the first end of the second rod body is adjusted, the second rod body swings relative to the first rod body, so that the axis of the second rod body forms a third swinging plane; when the second end of the second rod body and the scapula connecting rod are subjected to angle adjustment, the second rod body swings relative to the scapula connecting rod so that the axis of the second rod body forms a fourth swinging plane; the third swing plane intersects the fourth swing plane.

Further, the first rod body is connected with the second rod body in an angle-adjustable manner through an adjustable positioning structure, the adjustable positioning structure comprises a first positioning groove arranged on the first rod body and a second positioning groove arranged on the second rod body, the first positioning groove and/or the second positioning groove are multiple, the adjustable positioning structure further comprises positioning pieces, and when the first positioning groove and the second positioning groove are multiple, the positioning pieces can be selectively arranged in one of the first positioning grooves and one of the second positioning grooves in a penetrating manner; when the number of the first positioning grooves is one and the number of the second positioning grooves is multiple, the positioning piece can be selectively arranged in one of the first positioning grooves and the second positioning grooves corresponding to the first positioning grooves in a penetrating way; when the first positioning grooves are multiple and the second positioning groove is one, the positioning piece can be selectively arranged in the second positioning groove and one of the first positioning grooves corresponding to the second positioning groove in a penetrating mode.

Further, the setting element includes the cylinder and sets up a plurality of location archs on the global of cylinder with the interval, and when first constant head tank and second constant head tank all were a plurality of, a plurality of first constant head tanks and a plurality of second constant head tank all along cylinder circumference interval arrangement, a plurality of first constant head tanks and a plurality of second constant head tank one-to-one, a plurality of location archs wears to establish in a plurality of first constant head tanks and a plurality of second constant head tanks one-to-one.

Further, the positioning piece further comprises a limiting plate arranged on the column body, and when the positioning protrusions penetrate through the first positioning grooves and the second positioning grooves selectively, the limiting plate is clamped between the first end of the first rod body and the first end of the second rod body.

Further, the first end of the prosthesis main body is connected with the sternum connecting rod in an angle-adjustable manner through a first adjusting structure, the first adjusting structure comprises a first end fluted disc arranged on the sternum connecting rod, a second end fluted disc arranged on the first end of the prosthesis main body and a first fastening piece connected with the first end fluted disc and the second end fluted disc, and a first screw is arranged on the sternum connecting rod in a penetrating manner; the first fastening piece is in a first fastening state and a first loosening state, and when the first fastening piece is in the first fastening state, the first end fluted disc is meshed with the second end fluted disc so as to enable the prosthesis main body to be fixedly connected with the sternum connecting rod; when the first fastener is in a first loosening state, a first adjusting gap is formed between the first end fluted disc and the second end fluted disc, so that the angle between the prosthesis main body and the sternum connecting rod can be adjusted.

Further, the second end of the prosthesis main body is connected with the scapula connecting rod in an angle-adjustable way through a second adjusting structure, the second adjusting structure comprises a third end fluted disc arranged on the scapula connecting rod, a fourth end fluted disc arranged on the second end of the prosthesis main body and a second fastening piece connected with the third end fluted disc and the fourth end fluted disc, and a second screw is penetrated on the scapula connecting rod; the second fastener is in a second fastening state and in a second loosening state, and when the second fastener is in the second fastening state, the third end fluted disc is meshed with the fourth end tooth so as to enable the prosthesis main body to be fixedly connected with the scapula connecting rod; when the second fastening piece is in a second loosening state, a second adjusting gap is formed between the third end fluted disc and the fourth end fluted disc, so that the angle between the prosthesis main body and the scapula connecting rod can be adjusted.

By applying the technical scheme of the invention, the collarbone prosthesis comprises: a sternal connecting rod, a scapula connecting rod, and a prosthesis body. The scapula connecting rod and the sternum connecting rod are arranged at intervals. The prosthesis body is connected between the sternal connector bars and the scapula connector bars. The sternal connecting rod of the clavicle prosthesis is connected to the sternum, and the scapula connecting rod of the clavicle prosthesis is connected to the scapula, so that the prosthesis body is fixed. The distance, the height, the front and back parameters and the like between the sternum and the scapula of different patients are different, the prosthesis main body is connected with the sternum connecting rod in an angle adjustable manner, and the prosthesis main body is connected with the scapula connecting rod in an angle adjustable manner, so that the distance, the height and the front and back parameters between one end of the sternum connecting rod connected with the sternum and one end of the scapula connecting rod connected with the scapula are adjustable. Thus, the anatomy of the clavicle prosthesis is adjustable, so that the clavicle prosthesis can be adapted to different anatomies of different patients, the anatomy of the clavicle prosthesis is more ideal, the adaptability of the clavicle prosthesis is improved, the requirement of universal design can be met, the problem that the customized clavicle prosthesis in the related technology cannot be adjusted when the clavicle size and the appearance of the patient deviate is avoided, and the long-term stability of the clavicle prosthesis after implantation is improved. Therefore, the technical scheme of the application effectively solves the problem of poor adaptability of the collarbone prosthesis in the related technology. In addition, as the anatomical form of the clavicle prosthesis is adjustable, the production of the clavicle prosthesis with different sizes can be reduced, and the production cost of the clavicle prosthesis is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

FIG. 1 shows a schematic perspective view of an embodiment of a collarbone prosthesis according to the present invention;

FIG. 2 shows a partial enlarged view of the collarbone prosthesis of FIG. 1 at A;

FIG. 3 shows a partial enlarged view of the collarbone prosthesis of FIG. 1 at B;

FIG. 4 shows a schematic perspective view of another view of the collarbone prosthesis of FIG. 1;

FIG. 5 shows a partial enlarged view of the collarbone prosthesis of FIG. 4 at C;

fig. 6 shows a schematic exploded view of the collarbone prosthesis of fig. 1.

Wherein the above figures include the following reference numerals:

10. a sternum connecting rod; 11. a fourth step structure; 12. a first screw;

20. a scapula connecting rod; 21. a sixth step structure; 22. a second screw;

30. a prosthesis body; 31. a first rod body; 32. a second rod body; 311. a first step structure; 312. a third step structure; 321. a second step structure; 322. a fifth step structure; 33. tendon connection holes;

40. an adjustable positioning structure; 41. a first positioning groove; 42. a second positioning groove; 43. a positioning piece; 431. a column; 432. positioning the bulge; 433. a limiting plate;

50. a first adjustment structure; 51. a first end toothed disc; 52. a second end toothed disc; 53. a first fastener;

60. a second adjustment structure; 61. a third end fluted disc; 62. a fourth end tooth plate; 63. and a second fastener.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

As shown in fig. 1 to 4, the collarbone prosthesis of the present embodiment includes: a sternal connector rod 10, a scapula connector rod 20, and a prosthesis body 30. The scapula connecting rod 20 is spaced apart from the sternum connecting rod 10. The prosthesis body 30 is connected between the sternal connector bar 10 and the scapula connector bar 20. The prosthesis body 30 is connected angularly adjustably to the sternal connector rod 10, and the prosthesis body 30 is connected angularly to the scapula connector rod 20.

With the technical solution of the present embodiment, the prosthesis body 30 is connected between the sternal connector rod 10 and the scapula connector rod 20. The sternal connector rod 10 of the clavicle prosthesis is attached to the sternum, and the scapula connector rod 20 of the clavicle prosthesis is attached to the scapula to facilitate fixation of the prosthesis body 30. The distance, height, front and rear parameters between the sternum and the scapula of different patients are different, the prosthesis main body 30 is connected with the sternum connecting rod 10 in an angle adjustable manner, and the prosthesis main body 30 is connected with the scapula connecting rod 20 in an angle adjustable manner, so that the distance, height and front and rear parameters between one end of the sternum connecting rod 10 connected with the sternum and one end of the scapula connecting rod 20 connected with the scapula are adjustable. Thus, the anatomy of the clavicle prosthesis is adjustable, so that the clavicle prosthesis can be adapted to different anatomies of different patients, the anatomy of the clavicle prosthesis is more ideal, the adaptability of the clavicle prosthesis is improved, the requirement of universal design can be met, the problem that the customized clavicle prosthesis in the related technology cannot be adjusted when the clavicle size and the appearance of the patient deviate is avoided, and the long-term stability of the clavicle prosthesis after implantation is improved. Therefore, the technical scheme of the embodiment effectively solves the problem of poor adaptability of the collarbone prosthesis in the related technology. In addition, as the anatomical form of the clavicle prosthesis is adjustable, the production of the clavicle prosthesis with different sizes can be reduced, and the production cost of the clavicle prosthesis is reduced.

In this embodiment, after the resection of the patient's autologous clavicle segment, one end of the sternal connector rod 10 of the clavicle prosthesis is attached to the sternum and one end of the scapula connector rod 20 of the clavicle prosthesis is attached to the scapula.

In other embodiments, not shown, the patient's autologous clavicle section has residual clavicle bone following resection. One end of the sternal connector rod of the clavicle prosthesis and one end of the scapula connector rod of the clavicle prosthesis are connected between the clavicle remainder of the autologous clavicle. Alternatively, one end of the sternal connector rod of the clavicle prosthesis is connected to the sternum, and one end of the scapula connector rod of the clavicle prosthesis is connected to the clavicle remainder. Alternatively, one end of the sternal connecting rod of the clavicle prosthesis is the spare clavicle, and one end of the scapula connecting rod of the clavicle prosthesis is connected to the scapula.

As shown in fig. 1 to 4, the prosthesis body 30 includes a first rod 31 and a second rod 32, and a first end of the first rod 31 is connected to a first end of the second rod 32 in an angularly adjustable manner. So that the prosthesis body 30 can adjust the angle between the first rod body 31 and the second rod body 32 according to different anatomical forms of the collarbone of different patients, thereby making the anatomical shape of the collarbone prosthesis more ideal and further improving the adaptability of the collarbone prosthesis. The second end of the first rod body 31 is connected to the sternum connecting rod 10 in an angle-adjustable manner, and the second end of the second rod body 32 is connected to the scapula connecting rod 20 in an angle-adjustable manner. So that the prosthesis main body 30 can adjust the angle between the second end of the first rod body 31 and the sternum connecting rod 10 and the angle between the second end of the second rod body 32 and the scapula connecting rod 20 according to different anatomical forms of the collarbone of different patients, the freedom degree of the spatial position adjustment between one end of the sternum connecting rod 10 connected to the sternum and one end of the scapula connecting rod 20 connected to the scapula is increased, the flexibility of the collarbone prosthesis during form adjustment is improved, and the adaptability of the collarbone prosthesis is further improved.

In this embodiment, the morphology of the clavicle prosthesis is adjusted prior to the implantation of the clavicle prosthesis based on the medical image data of the patient. The morphology of the clavicle prosthesis is adjusted by adjusting the angle between the first rod body 31 and the second rod body 32, the angle between the second end of the first rod body 31 and the sternal connecting rod 10, and the angle between the second end of the second rod body 32 and the scapula connecting rod 20 so that the morphology of the clavicle prosthesis is adapted to different anatomical morphologies of the clavicle of different patients. In addition, in the implantation process, if the distance between the sternum and the scapula of the patient, the height and the front and back parameters deviate from the medical image data of the patient, the shape of the clavicle prosthesis can be timely adjusted by applying the technical scheme of the embodiment, and angle compensation is performed by adjusting the angle between the first rod body 31 and the second rod body 32, the angle between the second end of the first rod body 31 and the sternum connecting rod 10 and the angle between the second end of the second rod body 32 and the scapula connecting rod 20 so as to better adapt to different anatomical shapes of the clavicle of different patients, thereby being beneficial to improving the long-term stability of the clavicle prosthesis after implantation.

In this embodiment, tendon connection holes 33 are formed in the first rod body 31 and the second rod body 32, and the tendon connection holes 33 are through holes. The tendon connection holes 33 are provided to facilitate suture connection of the collarbone prosthesis to tendons, and the tendon connection holes 33 can be sutured to trapezius, pectoral large muscle, and deltoid muscle.

As shown in fig. 1 to 4, when the angle between the first end of the first rod 31 and the first end of the second rod 32 is adjusted, the first rod 31 swings relative to the second rod 32, so that the axis of the first rod 31 forms a first swing plane. When the second end of the first rod 31 is angularly adjusted with respect to the sternal connecting rod 10, the first rod 31 swings with respect to the sternal connecting rod 10 so that the axis of the first rod 31 forms a second swing plane. Compared to the universal rotation of the first rod 31 relative to the second rod 32, the universal rotation of the first rod 31 relative to the sternal connector 10: the first rod body 31 swings relative to the second rod body 32, and the first rod body 31 swings relative to the sternum connecting rod 10, so that under the condition that the angle between the first rod body 31 and the second rod body 32 and the angle between the first rod body 31 and the sternum connecting rod 10 are adjustable, the angle between the first rod body 31 and the second rod body 32 and the angle between the first rod body 31 and the sternum connecting rod 10 can be relatively fixed when the angle does not need to be adjusted, the relative fixation of the first rod body 31 and the second rod body 32 after implantation is facilitated, the relative fixation of the first rod body 31 and the sternum connecting rod 10 after implantation is facilitated, and the stability and reliability of the clavicle prosthesis after implantation are improved. The first swing plane is intersected with the second swing plane, so that the freedom degree and the movable range of the end, connected with the sternum, of the sternum connecting rod 10 are increased, the flexibility of the end, connected with the sternum, of the sternum connecting rod 10 in the form adjustment of the clavicle prosthesis is improved, and the adaptability of the clavicle prosthesis is further improved.

In this embodiment, the first swing plane is perpendicular to the second swing plane, so as to maximize the degree of freedom and the range of motion of the end of the sternum connecting rod 10 connected to the sternum, so as to improve the flexibility of the end of the sternum connecting rod 10 connected to the sternum when adjusting the morphology of the clavicle prosthesis, and further improve the adaptability of the clavicle prosthesis.

As shown in fig. 2 to 5, the first end of the first rod body 31 is provided with a first step structure 311, the first end of the second rod body 32 is provided with a second step structure 321, and the first end of the first rod body 31 and the first end of the second rod body 32 are connected with each other with an angle adjustable through the first step structure 311 and the second step structure 321. The step surface of the second step structure 321 is disposed opposite to the step surface of the first step structure 311. In this way, when the first rod 31 swings relative to the second rod 32, the swing track of the axis of the first rod 31 can be limited by the step surface of the first step structure 311 and the step surface of the second step structure 321, and the step surface of the first step structure 311 and the step surface of the second step structure 321 can play a role in guiding the swing of the first rod 31, so that the swing of the first rod 31 is more stable and reliable. The step surface of the first step structure 311 and the step surface of the second step structure 321 are parallel to the first swinging plane, so that when the first rod body 31 swings relative to the second rod body 32, the swinging track of the axis of the first rod body 31 can be parallel to the step surface of the first step structure 311 and the step surface of the second step structure 321, and the stability of the first rod body 31 during swinging is further improved.

As shown in fig. 2 to 5, the second end of the first rod body 31 is provided with a third step structure 312, and one end of the sternal connecting rod 10 facing the second end of the first rod body 31 is provided with a fourth step structure 11, and the second end of the first rod body 31 and the sternal connecting rod 10 are connected angularly and adjustably by the third step structure 312 and the fourth step structure 11. In this way, when the first rod body 31 swings relative to the sternal connecting rod 10, the swing track of the axis of the first rod body 31 can be limited by the step surface of the third step structure 312 and the step surface of the fourth step structure 11, and the step surface of the third step structure 312 and the step surface of the fourth step structure 11 can play a role in guiding the swing of the first rod body 31, so that the swing of the first rod body 31 is smoother and more reliable. The step surface of the third step structure 312 and the step surface of the fourth step structure 11 are opposite, and the step surface of the third step structure 312 and the step surface of the fourth step structure 11 are parallel to the second swinging plane, so that when the first rod body 31 swings relative to the sternum connecting rod 10, the swinging track of the axis of the first rod body 31 can be parallel to the step surface of the third step structure 312 and the step surface of the fourth step structure 11, and the stability of the first rod body 31 during swinging is further improved.

As shown in fig. 1 to 6, when the angle between the first end of the first rod 31 and the first end of the second rod 32 is adjusted, the second rod 32 swings relative to the first rod 31, so that the axis of the second rod 32 forms a third swinging plane. When the second end of the second rod 32 is angularly adjusted with respect to the scapula connecting rod 20, the second rod 32 swings with respect to the scapula connecting rod 20, so that the axis of the second rod 32 forms a fourth swing plane. Compared to the universal rotation of the second rod 32 relative to the first rod 31, the universal rotation of the second rod 32 relative to the scapula connecting rod 20: the second body of rod 32 swings for first body of rod 31, and the second body of rod 32 swings for the scapula connecting rod 20 for under the condition that the angle between second body of rod 32 and first body of rod 31 and the angle between second body of rod 32 and the scapula connecting rod 20 are adjustable, the angle between second body of rod 32 and first body of rod 31 and the angle between second body of rod 32 and the scapula connecting rod 20 can be relatively fixed when not needing to adjust, in order to do benefit to the relative fixation of second body of rod 32 and first body of rod 31 after implantation, do benefit to the relative fixation of second body of rod 32 and scapula connecting rod 20 after implantation, improved stability and reliability after the clavicle prosthesis is implanted. The third swing plane is intersected with the fourth swing plane so as to increase the freedom degree and the movement range of the end, connected with the shoulder blade, of the shoulder blade connecting rod 20, so that the flexibility of the end, connected with the shoulder blade, of the shoulder blade connecting rod 20 in the form adjustment of the clavicle prosthesis is improved, and the adaptability of the clavicle prosthesis is further improved.

In this embodiment, the third swing plane is perpendicular to the fourth swing plane, so as to maximize the degree of freedom and the range of motion of the end of the scapula connecting rod 20 connected to the scapula, so as to improve the flexibility of the end of the scapula connecting rod 20 connected to the scapula during the morphological adjustment of the clavicle prosthesis, and further improve the adaptability of the clavicle prosthesis.

As shown in fig. 1 to 6, the second end of the second rod body 32 is provided with a fifth stepped structure 322, and one end of the scapula connecting rod 20 toward the second end of the second rod body 32 is provided with a sixth stepped structure 21, and the second end of the second rod body 32 and the scapula connecting rod 20 are connected in an angle-adjustable manner through the fifth stepped structure 322 and the sixth stepped structure 21. In this way, when the second rod body 32 swings relative to the scapula connecting rod 20, the swing track of the axis of the second rod body 32 can be limited by the step surface of the fifth step structure 322 and the step surface of the sixth step structure 21, and the step surface of the fifth step structure 322 and the step surface of the sixth step structure 21 can play a role in guiding the swing of the second rod body 32, so that the swing of the second rod body 32 is smoother and more reliable. The step surface of the fifth step structure 322 is opposite to the step surface of the sixth step structure 21, and the step surface of the fifth step structure 322 and the step surface of the sixth step structure 21 are parallel to the fourth swinging plane, so that when the first rod body 31 swings relative to the scapula connecting rod 20, the swinging track of the axis of the second rod body 32 can be parallel to the step surface of the fifth step structure 322 and the step surface of the sixth step structure 21, and the stability of the second rod body 32 during swinging is further improved.

In this embodiment, the first swing plane is coplanar or parallel to the third swing plane.

Further, the arrangement of the first step mechanism and the second step mechanism, the arrangement of the third step mechanism and the fourth step mechanism and the arrangement of the fifth step mechanism and the sixth step mechanism can make the structure of the collarbone prosthesis more compact.

As shown in fig. 1 to 6, the first rod 31 is connected with the second rod 32 in an angularly adjustable manner by an adjustable positioning structure 40. The adjustable positioning structure 40 includes a first positioning groove 41 provided on the first rod body 31 and a second positioning groove 42 provided on the second rod body 32. The first positioning groove 41 and the second positioning groove 42 are plural, and the adjustable positioning structure 40 further includes a positioning member 43. The first positioning groove 41, the second positioning groove 42 and the positioning piece 43 are simple and reliable in structure and convenient to process.

As shown in fig. 1 to 6, in the present embodiment, the first positioning groove 41 and the second positioning groove 42 are each plural. When the first positioning groove 41 and the second positioning groove 42 are multiple, the positioning piece 43 can be selectively inserted into one of the first positioning grooves 41 and one of the second positioning grooves 42. When the positioning piece 43 is separated from the first positioning groove 41 and the second positioning groove 42, the first rod 31 and the second rod 32 can swing relatively, and the angle between the first rod 31 and the second rod 32 can be adjusted. The selective positioning piece 43 is arranged in one of the first positioning grooves 41 and one of the plurality of second positioning grooves 42 in a penetrating way. When the positioning piece 43 is inserted into one of the plurality of first positioning grooves 41 and one of the plurality of second positioning grooves 42, the first rod 31 and the second rod 32 are fixed relatively, and the angle between the first rod 31 and the second rod 32 is not adjustable. In this way, the fixing manner between the first rod body 31 and the second rod is simple and the operation is simple.

In an embodiment not shown in the drawings, the number of the first positioning grooves is one, and the number of the second positioning grooves is plural. When the first positioning grooves are one and the second positioning grooves are multiple, the positioning piece can be selectively arranged in one of the first positioning grooves and the second positioning grooves corresponding to the first positioning grooves in a penetrating mode.

In an embodiment not shown in the drawings, the first positioning grooves are plural, and the second positioning groove is one. When the first positioning grooves are multiple and the second positioning groove is one, the positioning piece can be selectively arranged in the second positioning groove and one of the first positioning grooves corresponding to the second positioning groove in a penetrating mode.

As shown in fig. 1 to 6, the positioning member 43 includes a cylinder 431 and a plurality of positioning projections 432 provided at intervals on the circumferential surface of the cylinder 431. When the first positioning grooves 41 and the second positioning grooves 42 are multiple, the first positioning grooves 41 and the second positioning grooves 42 are circumferentially spaced along the cylinder 431, the first positioning grooves 41 and the second positioning grooves 42 are in one-to-one correspondence, and the positioning protrusions 432 are arranged in the first positioning grooves 41 and the second positioning grooves 42 in a penetrating manner in one-to-one correspondence. The positioning projection 432 and the cylinder 431 are simple in structure, and facilitate the processing of the positioning member 43. The provision of the column 431 can improve the overall structural strength of the positioning member 43, so that the first rod 31 and the second rod are more reliably fixedly connected.

As shown in fig. 1 to 6, the positioning member 43 further includes a stopper 433 provided on the cylinder 431. When the positioning protrusions 432 are selectively inserted into the first positioning grooves 41 and the second positioning grooves 42, the limiting plate 433 is sandwiched between the first end of the first rod 31 and the first end of the second rod 32. The setting of limiting plate 433 makes setting element 43 can be spacing between first body of rod 31 and second body of rod 32, has avoided the play of location protruding 432 between first constant head tank 41 and second constant head tank 42, has improved the reliability when first body of rod 31 passes through adjustable location structure 40 and second body of rod 32 fixed connection.

In this embodiment, the stop plate 433 is perpendicular to the axis of the cylinder 431.

As shown in fig. 1-6, a first end of the prosthesis body 30 is angularly adjustably connected to the sternal connector rod 10 by a first adjustment structure 50. The first adjustment mechanism 50 includes a first end disc 51 disposed on the sternal connecting rod 10, a second end disc 52 disposed on the first end of the prosthesis body 30, and a first fastener 53 coupled to the first and

second end discs

51, 52. The first end tooth disc 51, the second end tooth disc 52 and the first fastening piece 53 are simple in structure and convenient to process. A first screw 12 is provided through the sternal connector rod 10 so that the sternal connector rod 10 can be connected to the sternum by the first screw 12. The first fastener 53 has a first fastened state and a first loosened state. When the first fastening piece 53 is in the first fastening state, the first end fluted disc 51 is engaged with the second end tooth, so that the prosthesis main body 30 is fixedly connected with the sternum connecting rod 10, and long-term stability after the clavicle prosthesis is implanted is improved. When the first fastener 53 is in the first loose state, a first adjusting gap is formed between the first end tooth disc 51 and the second end tooth disc 52, so that the teeth on the first end tooth disc 51 and the second end tooth disc 52 can be in avoidance fit, and relative rotation between the first end tooth disc 51 and the second end tooth disc 52 is facilitated, so that the angle between the prosthesis main body 30 and the sternum connecting rod 10 can be adjusted.

In the present embodiment, the first end toothed disc 51 is disposed on the step surface of the fourth step structure 11 and is integrally formed with the sternal connecting rod 10, and the second end toothed disc 52 is disposed on the step surface of the third step structure 312 and is integrally formed with the first rod body 31.

As shown in fig. 1 to 6, the second end of the prosthesis body 30 is connected with the scapula connecting rod 20 in an angularly adjustable manner by a second adjustment structure 60. The second adjustment structure 60 includes a third end chainring 61 disposed on the scapula connecting rod 20, a fourth end chainring 62 disposed on the second end of the prosthesis body 30, and a second fastener 63 connected to the third end chainring 61 and the fourth end chainring 62. The third end fluted disc 61, the fourth end fluted disc 62 and the second fastening piece 63 are simple in structure and convenient to process. A second screw 22 is provided to pass through the scapula connecting rod 20 so that the scapula connecting rod 20 can be connected to the scapula by the second screw 22. The second fastener 63 has a second fastened state and a second loosened state. When the second fastening member 63 is in the second fastening state, the third end fluted disc 61 is engaged with the fourth end tooth, so that the prosthesis main body 30 is fixedly connected with the scapula connecting rod 20, and the long-term stability of the collarbone prosthesis after implantation is improved. When the second fastener 63 is in the second loose state, a second adjustment gap is formed between the third end fluted disc 61 and the fourth end fluted disc 62, so that the teeth on the third end fluted disc 61 and the fourth end fluted disc 62 can be in clearance fit, and the relative rotation between the third end fluted disc 61 and the fourth end fluted disc 62 is convenient, so that the angle between the prosthesis main body 30 and the scapula connecting rod 20 can be adjusted.

In the present embodiment, the third end fluted disc 61 is disposed on the stepped surface of the sixth stepped structure 21 and is integrally formed with the scapula connecting rod 20, and the fourth end fluted disc 62 is disposed on the stepped surface of the fifth stepped structure 322 and is integrally formed with the second rod body 32. The first fastener 53 and the second fastener 63 are preferably screws.

In this embodiment, the first rod body 31, the second rod body 32, the scapula connecting rod 20 and the sternum connecting rod 10 adopt a 3D printed additive manufacturing method, and the contact part of the clavicle prosthesis and the bone and the contact part with the soft tissue are processed into a micropore structure, so that bone cells grow in, connective soft tissue grow in a facilitated manner, the restoration of the use function of the clavicle prosthesis is accelerated, and the long-term stability is improved. The microporous structure includes a plurality of pores of different pore sizes disposed on the surface of the collarbone prosthesis. The first rod body 31, the second rod body 32, the scapula connecting rod 20 and the sternum connecting rod 10 are made of titanium alloy materials so as to improve the strength of the clavicle prosthesis, reduce the weight, improve the biocompatibility and avoid complications.

In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A collarbone prosthesis comprising:

a sternal connection rod (10);

a scapula connecting rod (20) arranged at intervals with the sternum connecting rod (10);

a prosthesis body (30) connected between the sternal connecting rod (10) and the scapula connecting rod (20), the prosthesis body (30) and the sternal connecting rod (10) are connected in an angle-adjustable manner, and the prosthesis body (30) and the scapula connecting rod (20) are connected in an angle-adjustable manner.

2. The collarbone prosthesis according to claim 1, wherein the prosthesis body (30) comprises a first rod body (31) and a second rod body (32), the first end of the first rod body (31) being angularly adjustably connected to the first end of the second rod body (32), the second end of the first rod body (31) being angularly adjustably connected to the sternal connecting rod (10), the second end of the second rod body (32) being angularly adjustably connected to the scapula connecting rod (20).

3. The collarbone prosthesis according to claim 2, wherein,

when the angle between the first end of the first rod body (31) and the first end of the second rod body (32) is adjusted, the first rod body (31) swings relative to the second rod body (32) so that the axis of the first rod body (31) forms a first swinging plane;

when the second end of the first rod body (31) and the sternum connecting rod (10) are subjected to angle adjustment, the first rod body (31) swings relative to the sternum connecting rod (10) so that the axis of the first rod body (31) forms a second swinging plane; the first swing plane intersects the second swing plane.

4. The collarbone prosthesis of claim 3, wherein,

the first end of the first rod body (31) is provided with a first step structure (311), the first end of the second rod body (32) is provided with a second step structure (321), the first end of the first rod body (31) and the first end of the second rod body (32) are connected with each other in an angle-adjustable manner through the first step structure (311) and the second step structure (321), the step surface of the second step structure (321) is opposite to the step surface of the first step structure (311), and the step surface of the first step structure (311) and the step surface of the second step structure (321) are both parallel to the first swing plane;

the second end of the first rod body (31) is provided with a third step structure (312), one end of the sternum connecting rod (10) facing the second end of the first rod body (31) is provided with a fourth step structure (11), the second end of the first rod body (31) and the sternum connecting rod (10) are connected with each other in an angle-adjustable mode through the third step structure (312) and the fourth step structure (11), the step surface of the third step structure (312) and the step surface of the fourth step structure (11) are oppositely arranged, and the step surface of the third step structure (312) and the step surface of the fourth step structure (11) are parallel to the second swinging plane.

5. The collarbone prosthesis according to claim 2, wherein,

when the angle between the first end of the first rod body (31) and the first end of the second rod body (32) is adjusted, the second rod body (32) swings relative to the first rod body (31) so that the axis of the second rod body (32) forms a third swinging plane;

when the second end of the second rod body (32) and the scapula connecting rod (20) are subjected to angle adjustment, the second rod body (32) swings relative to the scapula connecting rod (20) so that the axis of the second rod body (32) forms a fourth swinging plane; the third swing plane intersects the fourth swing plane.

6. The collarbone prosthesis according to claim 2, wherein,

the first rod body (31) is connected with the second rod body (32) in an angle-adjustable manner through an adjustable positioning structure (40), the adjustable positioning structure (40) comprises a first positioning groove (41) formed in the first rod body (31) and a second positioning groove (42) formed in the second rod body (32), the number of the first positioning groove (41) and/or the number of the second positioning grooves (42) are multiple, and the adjustable positioning structure (40) further comprises positioning pieces (43);

when the first positioning groove (41) and the second positioning groove (42) are multiple, the positioning piece (43) can be selectively penetrated in one of the first positioning grooves (41) and one of the second positioning grooves (42);

when the number of the first positioning grooves (41) is one, and the number of the second positioning grooves (42) is multiple, the positioning piece (43) can be selectively penetrated in one corresponding to the first positioning groove (41) in the first positioning grooves (41) and the second positioning grooves (42);

when the number of the first positioning grooves (41) is plural, and the number of the second positioning grooves (42) is one, the positioning piece (43) can be selectively penetrated in one corresponding to the second positioning groove (42) in the second positioning grooves (42) and the plurality of the first positioning grooves (41).

7. The collarbone prosthesis according to claim 6, wherein the positioning member (43) includes a cylindrical body (431) and a plurality of positioning projections (432) provided at intervals on a peripheral surface of the cylindrical body (431), and when the first positioning groove (41) and the second positioning groove (42) are each plural, the plurality of first positioning grooves (41) and the plurality of second positioning grooves (42) are each arranged at intervals along a circumferential direction of the cylindrical body (431), the plurality of first positioning grooves (41) and the plurality of second positioning grooves (42) are in one-to-one correspondence, and the plurality of positioning projections (432) are provided in the plurality of first positioning grooves (41) and the plurality of second positioning grooves (42) in one-to-one correspondence.

8. The collarbone prosthesis according to claim 7, wherein the positioning member (43) further comprises a stopper plate (433) provided on the cylinder (431), and the stopper plate (433) is sandwiched between the first end of the first rod body (31) and the first end of the second rod body (32) when the plurality of positioning projections (432) are selectively provided in the plurality of first positioning grooves (41) and the plurality of second positioning grooves (42).

9. The collarbone prosthesis according to claim 1, wherein,

the first end of the prosthesis main body (30) is connected with the sternum connecting rod (10) in an angle adjustable manner through a first adjusting structure (50), the first adjusting structure (50) comprises a first end fluted disc (51) arranged on the sternum connecting rod (10), a second end fluted disc (52) arranged on the first end of the prosthesis main body (30) and a first fastening piece (53) connected with the first end fluted disc (51) and the second end fluted disc (52), and a first screw (12) is arranged on the sternum connecting rod (10) in a penetrating manner;

the first fastening piece (53) has a first fastening state and a first loosening state, and when the first fastening piece (53) is in the first fastening state, the first end fluted disc (51) is meshed and matched with the second end tooth so as to fixedly connect the prosthesis main body (30) with the sternum connecting rod (10);

when the first fastener (53) is in the first loosening state, a first adjusting gap is formed between the first end fluted disc (51) and the second end fluted disc (52), so that the angle between the prosthesis main body (30) and the sternum connecting rod (10) is adjustable.

10. The collarbone prosthesis according to claim 1, wherein,

the second end of the prosthesis main body (30) is connected with the scapula connecting rod (20) in an angle adjustable way through a second adjusting structure (60), the second adjusting structure (60) comprises a third end fluted disc (61) arranged on the scapula connecting rod (20), a fourth end fluted disc (62) arranged on the second end of the prosthesis main body (30) and a second fastening piece (63) connected with the third end fluted disc (61) and the fourth end fluted disc (62), and a second screw (22) is penetrated on the scapula connecting rod (20);

the second fastening piece (63) has a second fastening state and a second loosening state, and when the second fastening piece (63) is in the second fastening state, the third end fluted disc (61) is meshed with the fourth end tooth so as to fixedly connect the prosthesis main body (30) with the scapula connecting rod (20);

when the second fastener (63) is in the second loosening state, a second adjusting gap is formed between the third end fluted disc (61) and the fourth end fluted disc (62), so that the angle between the prosthesis main body (30) and the scapula connecting rod (20) is adjustable.