CN108938149B

CN108938149B - Bone block is filled to pestle and mortar joint

Info

Publication number: CN108938149B
Application number: CN201811070444.7A
Authority: CN
Inventors: 孟德松
Original assignee: Beijing AK Medical Co Ltd
Current assignee: Beijing AK Medical Co Ltd
Priority date: 2018-09-13
Filing date: 2018-09-13
Publication date: 2023-07-28
Anticipated expiration: 2038-09-13
Also published as: CN108938149A

Abstract

The invention provides a pestle and mortar joint filling bone block, which comprises the following components: a filling structure for filling in bone; the mortar structure is arranged on the filling structure in an angle adjustable way, and is provided with a concave joint surface which is used for matching with the pestle type joint. In, the filling structure is used for filling in the skeleton so as to realize connection, and the articular surface of the mortar-shaped structure is used for being matched with the pestle-shaped joint, and because the mortar-shaped structure angle is adjustably arranged on the filling structure, the relative angle between the mortar-shaped structure and the filling structure can be adjusted according to the specific bone defect condition of a patient, thereby realizing accurate filling and recovering good articular surface effect. Therefore, the matching effect between the pestle-and-socket joint-filling bone block and the pestle-and-socket joint and the applicability of the pestle-and-socket joint-filling bone block can be improved.

Description

Bone block is filled to pestle and mortar joint

Technical Field

The invention relates to the technical field of medical instruments, in particular to a pestle-mortar joint filling bone block.

Background

The pestle-socket joint is one kind of human body joint and mainly comprises shoulder joints, hip joints, other small joints and the like. The physiological structure can realize universal movement of limbs. When the pestle and socket joint is diseased or wounded, the bone defect is formed, and then the bone defect can be repaired by joint replacement. The bone fracture surface can be well fixed by accurately filling the defect part and reconstructing the spherical joint surface in the operation, so that the joint function is recovered. However, bone defects are different in form and have no fixed form. The existing pestle and mortar joint filling bone block is of an integrated structure, the effect of accurately filling and recovering the joint surface cannot be simultaneously considered, and the existing pestle and mortar joint filling bone block cannot be well matched with a pestle and mortar joint of a patient.

Disclosure of Invention

The invention provides a pestle and mortar joint filling bone block, which aims to solve the problem of poor matching effect of the pestle and mortar joint filling bone block in the prior art.

In order to solve the above problems, the present invention provides a pestle and socket joint filling bone block, comprising: a filling structure for filling in bone; the mortar structure is arranged on the filling structure in an angle adjustable way, and is provided with a concave joint surface which is used for matching with the pestle type joint.

Further, the filling structure is provided with a first connecting surface, the mortar-shaped structure is provided with a second connecting surface, the second connecting surface and the joint surface are respectively positioned at two sides of the mortar-shaped structure, the second connecting surface is in contact with the first connecting surface, and the second connecting surface can rotate relative to the first connecting surface.

Further, the acetabular joint filling bone block further comprises: the first locking part can adjust the degree of tightness of the first connecting surface and the second connecting surface to lock the mortar structure on the filling structure or unlock the mortar structure.

Further, the first locking portion includes: the first lock rod penetrates through the mortar structure, and one end of the first lock rod is arranged in the filling structure; the lock cap is arranged at the other end of the first lock rod, the mortar structure is arranged between the lock cap and the filling structure, and the first lock rod can drive the lock cap to move so as to compress or loosen the mortar structure through the lock cap.

Further, the first lock rod is provided with external threads, the filling structure is provided with internal threads matched with the external threads, the joint surface is provided with a first groove, and the lock cap is positioned in the first groove.

Further, be provided with the toper recess on the first connection face, be provided with the toper boss on the second connection face, the surface and the internal surface cooperation of toper recess of toper boss are connected, and first locking portion can adjust toper boss and toper recess complex elasticity degree.

Further, the acetabular joint filling bone block further comprises: and the second locking part is used for limiting the rotation position of the mortar structure on the filling structure.

Further, have on the first connection face and dodge the groove, the second locking portion includes: the first locking piece is arranged on the second connecting surface in a protruding mode and is positioned in the avoidance groove; the second retaining member is movably arranged on the side wall of the avoidance groove, and can be connected with the first retaining member to lock the mortar structure and can be separated from the first retaining member to loosen the mortar structure.

Further, the second locking member includes: the second lock rod is movably arranged on the side wall of the avoidance groove; the clamping piece is arranged at one end of the second lock rod, the clamping piece is positioned in the avoidance groove, and at least one of the clamping piece and the first locking piece is provided with a first limiting tooth; the second lock rod can drive the clamping piece to move so that the clamping piece is clamped or separated from the first locking piece.

Further, the side wall of the first locking piece is provided with a first limiting tooth, the clamping piece is provided with a second limiting tooth, and the second limiting tooth is used for being clamped with the first limiting tooth; or the clamping piece is made of elastic materials and can be clamped with the first limiting teeth through elastic deformation.

By applying the technical scheme of the invention, the mortar joint filling bone block is arranged to be a split structure comprising a filling structure and a mortar structure, wherein the filling structure is used for being filled in bones to realize connection, the joint surface of the mortar structure is used for being matched with the mortar joint, and the mortar structure is arranged on the filling structure in an angle adjustable manner, so that the relative angle between the mortar structure and the filling structure can be adjusted according to the specific bone defect condition of a patient, thereby realizing accurate filling and recovering good joint surface effect. Therefore, the matching effect between the pestle-and-socket joint-filling bone block and the pestle-and-socket joint and the applicability of the pestle-and-socket joint-filling bone block can be improved.

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 view of a pestle and socket joint filling bone block provided by an embodiment of the present invention;

FIG. 2 shows another view of FIG. 1;

FIG. 3 shows a schematic view of the filling structure of FIG. 1;

fig. 4 shows a schematic view of the mortar-type structure of fig. 1.

Wherein the above figures include the following reference numerals:

10. filling the structure; 11. a first connection surface; 12. an avoidance groove; 20. a mortar structure; 21. a articular surface; 22. a second connection surface; 30. a first locking part; 41. a first locking member; 411. the first limiting teeth; 42. a second locking member; 421. a second lock lever; 422. a clamping piece; 423. and the second limiting teeth.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. 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.

As shown in fig. 1 to 4, an embodiment of the present invention provides a pestle-and-socket joint filling bone block, comprising: a filling structure 10 for filling in bone; the cup-shaped structure 20 is arranged on the filling structure 10 in an angularly adjustable manner, the cup-shaped structure 20 having a concave joint surface 21, the joint surface 21 being intended to mate with a cup-shaped joint.

By applying the technical scheme of the embodiment, the mortar joint filling bone block is arranged to be a split structure comprising the filling structure 10 and the mortar structure 20, wherein the filling structure 10 is used for being filled in bones to achieve connection with the bones, the joint surface 21 of the mortar structure 20 is used for being matched with the mortar joint, and the mortar structure 20 is arranged on the filling structure 10 in an angle-adjustable manner, so that the relative angle between the mortar structure 20 and the filling structure 10 can be adjusted according to the specific bone defect condition of a patient, thereby realizing accurate filling and recovering good joint surface effect. Therefore, the matching effect between the pestle-and-socket joint-filling bone block and the pestle-and-socket joint and the applicability of the pestle-and-socket joint-filling bone block can be improved.

In this embodiment, the filling structure 10 has a first connection surface 11, the socket structure 20 has a second connection surface 22, the second connection surface 22 and the joint surface 21 are located on two sides of the socket structure 20, the second connection surface 22 contacts the first connection surface 11, and the second connection surface 22 can rotate relative to the first connection surface 11. The relative angle of the cup structure 20 to the filling structure 10 can thus be adjusted by rotating the second connection surface 22 relative to the first connection surface 11. In the present embodiment, the first connection surface 11 may be provided as a spherical surface or a tapered surface, and the second connection surface 22 may be provided as a spherical surface or a tapered surface, respectively.

In this embodiment, the acetabular arthroplasty bone block further comprises: the first locking part 30, the first locking part 30 can adjust the tightness degree of the first connecting surface 11 and the second connecting surface 22 to lock the mortar-shaped structure 20 on the filling structure 10 or unlock the mortar-shaped structure 20. Thus, when the relative positions of the mortar-shaped structure 20 and the filling structure 10 need to be adjusted, the mortar-shaped structure 20 and the filling structure 10 are released by the first locking part 30, and then the mortar-shaped structure can be adjusted. After the relative positions of the mortar-shaped structure 20 and the filling structure 10 are adjusted, the mortar-shaped structure 20 and the filling structure 10 are locked by the first locking part 30, so that the relative positions of the mortar-shaped structure 20 and the filling structure 10 can be fixed, and the reliability in use is ensured.

As shown in fig. 1 and 3, the first locking portion 30 includes: the first lock rod penetrates through the mortar structure 20, and one end of the first lock rod is arranged in the filling structure 10; the lock cap is arranged at the other end of the first lock rod, the mortar structure 20 is arranged between the lock cap and the filling structure 10, and the first lock rod can drive the lock cap to move so as to compress or loosen the mortar structure 20 through the lock cap. Thus, the locking or unlocking of the mortar structure 20 and the filling structure 10 can be realized through the cooperation of the first lock rod and the lock cap.

Specifically, the first locking bar has an external thread, the filling structure 10 has an internal thread cooperating with the external thread, the joint surface 21 has a first recess therein, and the locking cap is located in the first recess. The connection of the first locking bar to the filling structure 10 can thus be achieved by means of a threaded fit. The lock cap is arranged in the first groove, so that the lock cap and the pestle type joint can be prevented from interfering. In the present embodiment, the first locking portion 30 may be provided as a screw.

In an embodiment, a conical groove may be disposed on the first connection surface 11, and a conical boss may be disposed on the second connection surface 22, where an outer surface of the conical boss is connected with an inner surface of the conical groove in a matching manner, and the first locking portion 30 may be capable of adjusting the tightness degree of the conical boss and the conical groove in a matching manner. In this way, the contact area between the mortar structure 20 and the filling structure 10 can be increased by the cooperation of the conical boss and the conical groove, so that the reliability of connection is improved.

In this embodiment, the acetabular arthroplasty bone block further comprises: and a second locking portion for defining a rotational position of the cup-shaped structure 20 on the filling structure 10. The reliability of the connection of the socket structure 20 and the filling structure 10 can be improved by providing the second locking portion, so as to avoid the relative position change of the socket structure 20 and the filling structure during use.

Specifically, the first connecting surface 11 has an avoidance groove 12 thereon, and the second locking portion includes: the first locking piece 41 is arranged on the second connecting surface 22 in a protruding manner, and the first locking piece 41 is positioned in the avoidance groove 12; a second locking member 42 is movably provided on a side wall of the escape groove 12, the second locking member 42 being connectable with the first locking member 41 to lock the socket structure 20, and the second locking member 42 being separable from the first locking member 41 to unlock the socket structure 20. In this way, when the relative position of the mortar structure 20 and the filling structure 10 needs to be adjusted, the second locking member 42 is separated from the first locking member 41, and after the adjustment is completed, the second locking member 42 is connected with the first locking member 41, so that the relative position of the mortar structure 20 and the filling structure 10 can be fixed. In the present embodiment, the first lock lever of the first locking portion 30 is provided in the first locking member 41.

Specifically, the second locking member 42 includes: a second lock lever 421 movably provided on a side wall of the escape groove 12; the clamping piece 422 is arranged at one end of the second lock rod 421, the clamping piece 422 is positioned in the avoidance groove 12, and at least one of the clamping piece 422 and the first locking piece 41 is provided with a first limiting tooth 411; the second lock lever 421 can drive the clamping member 422 to move, so that the clamping member 422 is clamped or separated from the first locking member 41. The position of the locking piece 422 can be adjusted by the second locking bar 421, and the connection is realized by the cooperation of the locking piece 422 and the first locking piece 41. In the present embodiment, the second locking bar 421 and the escape groove 12 may be provided in a screw connection.

Further, the side wall of the first locking member 41 has a first limiting tooth 411, the clamping member 422 has a second limiting tooth 423, and the second limiting tooth 423 is used for being clamped with the first limiting tooth 411; or, the clamping piece 422 is made of an elastic material, and the clamping piece 422 can be clamped with the first limiting teeth 411 through elastic deformation. In both of the above two ways, reliable connection of the first locking member 41 and the second locking member 42 can be achieved.

By applying the technical scheme of the invention, the mortar joint filling bone block is arranged to be a split structure comprising the filling structure 10 and the mortar structure 20, wherein the filling structure 10 is used for being filled in bones to realize connection with the bones, the joint surface 21 of the mortar structure 20 is used for being matched with the mortar joint, and the mortar structure 20 is arranged on the filling structure 10 in an angle adjustable manner, so that the relative angle between the mortar structure 20 and the filling structure 10 can be adjusted according to the specific bone defect condition of a patient, thereby realizing accurate filling and recovering good joint surface effect. Therefore, the matching effect between the pestle-and-socket joint-filling bone block and the pestle-and-socket joint and the applicability of the pestle-and-socket joint-filling bone block can be improved. The technical scheme is that the adjustable filling bone block, the mortar structure 20 can be accurately filled according to the defect form of a patient, and the physiological structure of the joint surface can be perfectly recovered through the position adjustment of the mortar structure 20 and the filling structure 10, so that the purpose of well fixing the mortar prosthesis is achieved.

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.

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.

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.

Claims

1. A pestle and socket joint filling bone block comprising:

-a filling structure (10) for filling in bone;

a socket-type structure (20) arranged on the filling structure (10) in an angle-adjustable manner, wherein the socket-type structure (20) is provided with a concave joint surface (21), and the joint surface (21) is used for matching with a pestle-type joint;

the filling structure (10) is provided with a first connecting surface (11), the mortar-shaped structure (20) is provided with a second connecting surface (22), the second connecting surface (22) and the joint surface (21) are respectively positioned at two sides of the mortar-shaped structure (20), the second connecting surface (22) is contacted with the first connecting surface (11), and the second connecting surface (22) can rotate relative to the first connecting surface (11);

a first locking part (30), wherein the first locking part (30) can adjust the tightness degree of the matching of the first connecting surface (11) and the second connecting surface (22) so as to lock the mortar-shaped structure (20) on the filling structure (10) or unlock the mortar-shaped structure (20);

and the second locking part is used for limiting the rotation position of the mortar-type structure (20) on the filling structure (10).

2. The acetabular joint filled bone block of claim 1, wherein the first locking portion (30) comprises:

the first lock rod penetrates through the mortar structure (20), and one end of the first lock rod is arranged in the filling structure (10);

the lock cap is arranged at the other end of the first lock rod, the mortar structure (20) is positioned between the lock cap and the filling structure (10), and the first lock rod can drive the lock cap to move so as to press or release the mortar structure (20) through the lock cap.

3. The acetabular joint filling bone block of claim 2, wherein the first locking bar has external threads, the filling structure (10) has internal threads that mate with the external threads, the articular surface (21) has a first groove thereon, and the locking cap is positioned within the first groove.

4. The bone block as claimed in claim 1, wherein the first connection surface (11) is provided with a tapered recess, the second connection surface (22) is provided with a tapered boss, an outer surface of the tapered boss is cooperatively connected with an inner surface of the tapered recess, and the first locking portion (30) is capable of adjusting the degree of tightness of the tapered boss and the tapered recess.

5. The bone block as claimed in claim 1, wherein the first connecting surface (11) has a relief groove (12), and the second locking portion comprises:

the first locking piece (41) is arranged on the second connecting surface (22) in a protruding mode, and the first locking piece (41) is positioned in the avoidance groove (12);

and a second locking member (42) movably arranged on the side wall of the avoidance groove (12), wherein the second locking member (42) can be connected with the first locking member (41) to lock the mortar structure (20), and the second locking member (42) can be separated from the first locking member (41) to release the mortar structure (20).

6. The acetabular joint filling bone block of claim 5, wherein the second retaining member (42) comprises:

a second lock lever (421) movably provided on a side wall of the escape groove (12);

the clamping piece (422) is arranged at one end of the second lock rod (421), the clamping piece (422) is positioned in the avoidance groove (12), and at least one of the clamping piece (422) and the first locking piece (41) is provided with a first limiting tooth (411);

the second lock rod (421) can drive the clamping piece (422) to move so that the clamping piece (422) is clamped or separated from the first locking piece (41).

7. The mortar and pestle joint filling bone block of claim 6, wherein the first retaining member (41) has first retaining teeth (411) on its side walls,

the clamping piece (422) is provided with a second limiting tooth (423), and the second limiting tooth (423) is used for being clamped with the first limiting tooth (411); or alternatively, the first and second heat exchangers may be,

the clamping piece (422) is made of elastic materials, and the clamping piece (422) can be clamped with the first limiting teeth (411) through elastic deformation.