阅读说明：本技术 一种用于微创手术的融合器及融合器组件 (Fusion cage for minimally invasive surgery and fusion cage assembly ) 是由 宋兴华 丁俐文 于 2019-10-08 设计创作，主要内容包括：本申请提供了一种用于微创手术的融合器及融合器组件,涉及医疗器械领域。该融合器包括融合器本体。融合器本体内设有植骨空间。融合器本体在第一预设方向的两端分别设有与植骨空间连通的第一植骨窗和第二植骨窗,融合器本体设有第一锁定孔和第二锁定孔,第一锁定孔和第二锁定孔均用于插设螺钉。融合器本体在第二预设方向具有第一端,第一锁定孔贯穿第一端和融合器本体在第一预设方向的一端,第二锁定孔贯穿第一端和融合器本体在第一预设方向的另一端。其中,第一预设方向与第二预设方向垂直。当在第一锁定孔和第二锁定内插入螺钉能够保持碎骨组织与植骨始终接触,降低手术后融合器发生偏移、脱离的风险,保证融合效果。(The application provides a fusion cage and a fusion cage assembly for minimally invasive surgery, and relates to the field of medical instruments. The fusion cage includes a cage body. The fusion cage body is internally provided with a bone grafting space. Fuse ware body is equipped with respectively at the both ends of first predetermined direction and plants bone window and second that bone space communicates with planting bone window, fuses the ware body and is equipped with first locking hole and second locking hole, and first locking hole and second locking hole all are used for inserting and establish the screw. The fusion cage body is provided with a first end in a second preset direction, the first locking hole penetrates through the first end and one end of the fusion cage body in the first preset direction, and the second locking hole penetrates through the first end and the other end of the fusion cage body in the first preset direction. The first preset direction is perpendicular to the second preset direction. When screws are inserted into the first locking hole and the second locking hole, the broken bone tissues can be kept in contact with the bone graft all the time, the risks of deviation and separation of the fusion cage after the operation are reduced, and the fusion effect is ensured.)

1. A fusion cage for minimally invasive surgery, comprising a cage body;

a bone grafting space is arranged in the fusion cage body, a first bone grafting window and a second bone grafting window which are communicated with the bone grafting space are respectively arranged at two ends of the fusion cage body in a first preset direction, a first locking hole and a second locking hole are arranged in the fusion cage body, and the first locking hole and the second locking hole are used for inserting and setting screws;

the fusion cage body is provided with a first end in a second preset direction, the first locking hole penetrates through the first end and one end of the fusion cage body in the first preset direction, and the second locking hole penetrates through the first end and the other end of the fusion cage body in the first preset direction;

The first preset direction is perpendicular to the second preset direction.

2. The fusion cage for minimally invasive surgery according to claim 1, wherein a third bone grafting window and a fourth bone grafting window are respectively arranged at two ends of the fusion cage body in a third preset direction;

The first preset direction and the second preset direction are both perpendicular to the third preset direction.

3. The fusion cage for minimally invasive surgery as recited in claim 1, wherein the first end is provided with a threaded hole.

4. The cage for minimally invasive surgery as recited in claim 3, wherein the cage body has a second end disposed opposite the first end in the second preset direction, the second end being frustum-shaped.

5. The fusion cage for minimally invasive surgery according to claim 1, wherein the first locking hole comprises a first hole section and a second hole section, the first hole section and the second hole section are communicated through the bone grafting space, the first hole section tube penetrates through the first end, and the second hole section penetrates through one end of the fusion cage body in the first preset direction; and/or

The second locking hole comprises a third hole section and a fourth hole section, the third hole section is communicated with the fourth hole section through the bone grafting space, the third hole section penetrates through the first end, and the fourth hole section penetrates through the fusion cage body at the other end in the first preset direction.

6. The fusion cage for minimally invasive surgery according to claim 1, wherein an arrangement direction of the first locking holes is arranged to cross an arrangement direction of the second locking holes.

7. The fusion cage for minimally invasive surgery according to claim 1, wherein the fusion cage body is provided with anti-slip portions at both ends in the first preset direction.

8. The fusion device for minimally invasive surgery according to claim 7, wherein the anti-slip portion includes a plurality of anti-slip projections, the anti-slip projections being inclined in a direction close to the first end.

9. A cage assembly for minimally invasive surgery, comprising a first screw, a second screw and a cage for minimally invasive surgery according to any one of claims 1-8;

The first screw is inserted into the first locking hole, and the second screw is inserted into the second locking hole.

10. The cage assembly for minimally invasive surgery of claim 9, wherein a length of said first screw within said first locking hole is less than a length of said first screw outside said first locking hole; the length of the second screw in the second locking hole is smaller than the length of the second screw outside the second locking hole.

Technical Field

The application relates to the field of medical instruments, in particular to a fusion cage for minimally invasive surgery and a fusion cage assembly.

Background

At present, what mainly adopted when spine and lumbar vertebrae unstability and the high operation of losing are implanted the treatment mode of fusion ware with external fixation nail stick to present spinal surgery, and the two excellent modes of four nails of fixation nail stick general adoption not only can increase the operation degree of difficulty, still can make patient's wound healing time long.

Disclosure of Invention

The embodiment of the application provides a fusion cage and a fusion cage assembly for minimally invasive surgery, which aim to improve the problem that the existing fusion cage adopts a four-nail two-rod fixing mode to increase the difficulty of the surgery.

In a first aspect, embodiments of the present application provide a fusion cage for minimally invasive surgery, including a cage body. The fusion cage body is internally provided with a bone grafting space. The fusion cage body is provided with a first bone grafting window and a second bone grafting window which are communicated with the bone grafting space at two ends in a first preset direction, the fusion cage body is provided with a first locking hole and a second locking hole, and the first locking hole and the second locking hole are used for inserting and setting screws; the fusion cage body is provided with a first end in the second preset direction, the first locking hole penetrates through the first end and one end of the fusion cage body in the first preset direction, and the second locking hole penetrates through the first end and the other end of the fusion cage body in the first preset direction; the first preset direction is perpendicular to the second preset direction.

Among the above-mentioned technical scheme, when putting into the integration ware body between two adjacent vertebrae, the bone crushing tissue in the bone grafting space contacts with two vertebrae respectively through first bone grafting window and second bone grafting window, be equipped with on the integration ware body and insert first locking hole and the second locking hole of establishing the screw, insert the screw and can keep bone crushing tissue and bone grafting contact all the time in first locking hole and second locking, reduce the risk that the integration ware takes place to squint, break away from after the operation, guarantee to fuse the effect.

In addition, the fusion cage for minimally invasive surgery of the embodiment of the application also has the following additional technical characteristics:

In some embodiments of the first aspect of the present application, a third bone grafting window and a fourth bone grafting window are respectively disposed at two ends of the fusion cage body in a third preset direction; the first preset direction and the second preset direction are both perpendicular to the third preset direction.

among the above-mentioned technical scheme, fuse the ware body and be equipped with the third respectively at the third both ends of predetermineeing the orientation and plant bone window and fourth for put into the broken bone that plants in the bone space and prevent to predetermine the human tissue contact of orientation with the third through bone window and fourth plant bone window, assurance that can be better fuses the effect.

In some embodiments of the first aspect of the present application, the first end is provided with a threaded bore.

Among the above-mentioned technical scheme, be equipped with the screw hole on the fusion ware body, the screw hole can be used for connecting other member pieces, conveniently puts into operation wound department with the fusion ware.

In some embodiments of the first aspect of the present application, the cage body has a second end disposed opposite the first end in the second predetermined direction, the second end being frustum-shaped.

Among the above-mentioned technical scheme, the second end is the one end that enters into the operation wound most advanced when putting into the fusion ware in to the operation wound promptly, and first end sets up to the frustum form, can strut the wound of front end gradually and do not harm the wound wall putting into the in-process of fusion ware, avoids causing the secondary damage to the human body.

In some embodiments of the first aspect of the present application, the first locking hole comprises a first hole section and a second hole section, the first hole section and the second hole section are communicated through the bone grafting space, the first hole section tube penetrates through the first end, and the second hole section penetrates through one end of the fusion cage body in the first preset direction; and/or the second locking hole comprises a third hole section and a fourth hole section, the third hole section is communicated with the fourth hole section through a bone grafting space, the third hole section penetrates through the first end, and the fourth hole section penetrates through the other end of the fusion cage body in the first preset direction.

In the technical scheme, the bone grafting space divides the first locking hole into a first hole section and a second hole section, the first hole section penetrates through the first end, the second hole section penetrates through one end of the fusion cage body in the first preset direction, and when a screw is inserted into the first locking hole, the first hole section and the second hole section can position the screw at two different positions, so that the stability and the locking strength of the screw are improved; and/or the bone grafting space divides into third hole section and fourth hole section with the second locking hole, and first end is run through to the third hole section, and the fourth hole section runs through the other end of integration ware body in first predetermined orientation, and when the screw inserted the second locking hole, third hole section and fourth hole section can fix a position the screw in two different positions, improve the stability and the locking strength of screw.

in some embodiments of the first aspect of the present application, the arrangement direction of the first locking holes is arranged to intersect with the arrangement direction of the second locking holes.

In the technical scheme, the first locking holes and the second locking holes are arranged in a crossed mode, and the screws inserted into the first locking holes and the second locking holes are also arranged in a crossed mode, so that adjacent vertebrae can be locked better, and the fusion effect is guaranteed.

In some embodiments of the first aspect of the present application, the fusion cage body is provided with anti-slip portions at both ends in the first preset direction.

Among the above-mentioned technical scheme, antiskid portion can contact with vertebra tissue, can increase the friction between cage and the vertebra terminal surface, thereby reduces cage and takes place to shift and break away from the risk that influences the fusion between broken bone tissue and the vertebra tissue between adjacent vertebra.

In some embodiments of the first aspect of the present application, the grip portion comprises a plurality of cleats, the cleats being inclined in a direction adjacent the first end.

Among the above-mentioned technical scheme, every non-slip raised all inclines to the direction that is close to first end, can avoid non-slip raised and vertebra tissue to produce too big friction when the installation fuses the ware and cause the secondary damage to the human body, and after the completion of the installation of fusing the ware, non-slip raised can prevent effectively that the ware from removing and breaking away from to the opening direction of operation wound.

in a second aspect, embodiments of the present application provide a fusion cage assembly for minimally invasive surgery, which includes a first screw, a second screw and the fusion cage for minimally invasive surgery provided in the embodiments of the first aspect; the first screw is inserted in the first locking hole, and the second screw is inserted in the second locking hole.

Among the above-mentioned technical scheme, first screw is inserted and is located first locking hole, and the second screw is inserted and is located in the second locking hole, inserts the screw in first locking hole and second locking and can keep the broken bone tissue and plant the bone and contact all the time, reduces the risk that the ware takes place to squint, break away from after the operation, guarantees to fuse the effect.

In some embodiments of the second aspect of the present application, the length of the first screw within the first locking hole is greater than the length of the first screw outside the first locking hole; the length of the second screw in the second locking hole is greater than the length of the second screw outside the second locking hole.

In the technical scheme, the length of the first screw in the first locking hole is greater than the length of the first screw outside the first locking hole; the length of the second screw in the second locking hole is larger than that of the second screw outside the second locking hole, and after the first screw and the second screw are connected with the vertebrae, the first screw and the second screw can be positioned in the fusion device body in a sufficient length to resist the shearing stress of the fusion device body to the first screw and the second screw, so that the risk of damage of the first screw and the second screw is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic structural view of a conventional fusion cage in a reinforcing manner;

fig. 2 is a schematic structural view of a fusion cage for minimally invasive surgery provided in an embodiment of a first aspect of the present application at a first viewing angle;

Fig. 3 is a schematic structural view of a fusion cage for minimally invasive surgery provided in an embodiment of the first aspect of the present application at a second viewing angle;

Fig. 4 is a schematic structural view of a fusion cage for minimally invasive surgery provided in an embodiment of the first aspect of the present application at a third viewing angle;

Fig. 5 is a schematic structural view of a fusion cage for minimally invasive surgery provided in an embodiment of the first aspect of the present application at a fourth viewing angle;

Fig. 6 is a schematic structural view of a first viewing angle of a cage assembly for minimally invasive surgery according to an embodiment of a second aspect of the present application;

FIG. 7 is a schematic structural view from a second perspective of a cage assembly for minimally invasive surgery as provided in an embodiment of the second aspect of the present application;

FIG. 8 is a schematic structural view from a third perspective of a cage assembly for minimally invasive surgery as provided in an embodiment of the second aspect of the present application;

fig. 9 is a schematic structural view of a fourth perspective of a cage assembly for minimally invasive surgery according to an embodiment of the second aspect of the present application.

Icon: 100-a fusion device; 10-bone grafting space; 20-a first locking hole; 21-a first bore section; 22-a second bore section; 30-a second locking hole; 31-a third pore section; 32-a fourth pore section; 40-a first end; 41-a threaded hole; 50-a second end; 60-a third end; 61-first bone window; 62-a stud; 70-a fourth end; 71-a second bone graft window; 80-fifth end; 81-the third bone graft window; 90-sixth end; 91-fourth bone window; a-a first preset direction; b-a second preset direction; c-a third preset direction; 1000-a cage assembly; 200-a first screw; 300-second screw.

Detailed Description

in order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

in the description of the embodiments of the present application, it should be noted that the indication of orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, or the orientation or positional relationship which is usually understood by those skilled in the art, or the orientation or positional relationship which is usually placed when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.