CN214712940U

CN214712940U - Interval-adjustable expansion type fusion cage for intervertebral

Info

Publication number: CN214712940U
Application number: CN202023293757.4U
Authority: CN
Inventors: 唐毅; 张�成
Original assignee: Shuohui Jiangsu Medical Technology Co ltd
Current assignee: Shuohui Jiangsu Medical Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-11-16
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses an intervertebral expansion type fusion cage with adjustable interval, including the set casing, the top and the bottom of set casing all are provided with the inflation body, the left side swing joint of set casing inner chamber has the threaded rod, the surface cover of threaded rod is equipped with two thread bushings, the equal swing joint in top and the bottom of thread bushing has the support bar, the one end that the thread bushing was kept away from to the support bar run through to the outside of set casing and with inflation body swing joint, the right side of set casing is seted up flutedly, and the inner chamber of recess is provided with rotatory piece, and the right-hand member of threaded rod runs through to the inner chamber of recess and with rotatory piece fixed connection. The utility model discloses a set up set casing, inflation body, threaded rod, thread bush, support bar, recess, rotatory piece, connecting block, column spinner, rotary rod and handle, solved the problem that current inflation formula fuses the ware and can not the interval, this intervertebral with adjustable interval's inflation formula fuses the ware, possesses adjustable interval's advantage, is worth promoting.

Description

Interval-adjustable expansion type fusion cage for intervertebral

Technical Field

The utility model relates to the technical field of medical equipment, specifically be an intervertebral inflation formula fusion cage with adjustable interval.

Background

With the rapid development of spine minimally invasive technology in recent years, the operation becomes more and more fine, the operation incision becomes smaller, many students also start to concern about spine endoscopic centrum fusion technology, the existing fusion cage is not matched with a spine endoscopic working sleeve, the proper fusion cage is placed to help to recover the intervertebral space height, the nerve root canal area is enlarged, the spine stability is increased, however, if the fusion cage is not properly selected, the postoperative complication incidence rate can be obviously increased, the existing more fusion cages are screw expandable fusion cages, the expansion height of the fusion cages has a certain range and is about three to five millimeters, the expansion fusion cages of the proper models are generally selected according to the intervertebral space height preprocessed by patients, if the smaller models are selected, the expansion of the fusion cages is limited, the supporting effect cannot be achieved, and postoperative fusion cage movement and other complications are easy to occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an intervertebral inflation formula fusion cage with adjustable interval possesses the advantage of adjustable interval, has solved the problem that current inflation formula fusion cage can not the interval of adjusting.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an intervertebral expansion type fusion cage with adjustable interval, includes the set casing, the top and the bottom of set casing all are provided with the inflation body, the left side swing joint of set casing inner chamber has the threaded rod, the surface cover of threaded rod is equipped with two thread bushings, the top and the equal swing joint in bottom of thread bushing have the support bar, the one end that the thread bushing was kept away from to the support bar run through to the outside of set casing and with inflation body swing joint, the right side of set casing is seted up flutedly, the inner chamber of recess is provided with rotatory piece, the right-hand member of threaded rod run through to the inner chamber of recess and with rotatory piece fixed connection, the surface cover of rotatory piece is equipped with the connecting block, the right side fixedly connected with column spinner of connecting block, the right side fixedly connected with rotary rod of column, the right-hand member fixedly connected with handle of rotary rod.

Preferably, the surface of the rotating block is in contact with the connecting block, and the joint of the surface of the threaded rod and the fixed shell is movably connected through a bearing.

Preferably, the connection between the surface of the threaded sleeve and the support bar is movably connected through a first rotating shaft, and the connection between one end of the support bar, far away from the threaded sleeve, and the expansion body is movably connected through a second rotating shaft.

Preferably, the top and the bottom of set casing have all been seted up the spacing groove, and the equal fixedly connected with gag lever post in two relative one sides of inflation body, the one end that the expansion body was kept away from to the gag lever post runs through to the inner chamber and the fixedly connected with stopper of spacing groove.

Preferably, the screw thread of threaded rod surface both sides is opposite, the opening that uses with the support bar cooperation is all seted up to the top and the bottom of set casing, the equal fixedly connected with limiting plate of front side and the rear side of the relative one side of two inflation bodies, and the surface and the set casing contact of limiting plate.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up set casing, inflation body, threaded rod, thread bush, support bar, recess, rotatory piece, connecting block, column spinner, rotary rod and handle, solved the problem that current inflation formula fuses the ware and can not the interval, this intervertebral with adjustable interval's inflation formula fuses the ware, possesses adjustable interval's advantage, is worth promoting.

2. The utility model discloses a set up the support bar, can play the effect of supporting the inflation body, through setting up the recess, the installation of the rotatory piece of can being convenient for, through setting up the connecting block, the rotation of the rotatory piece of can being convenient for, through setting up the handle, can convenient to use person rotate the rotary rod, through setting up the spacing groove, gag lever post and stopper, can restrict the removal scope of the inflation body, through setting up the opening, the installation of the support bar of can being convenient for, through setting up the bearing, the rotation of the threaded rod of can being convenient for, through setting up first pivot and second pivot, the use of the support bar of can being convenient for.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a left partial sectional view of the structure of the present invention;

FIG. 3 is an enlarged view of a portion of A in FIG. 1 according to the present invention;

fig. 4 is a left side view of the connecting block of the present invention.

In the figure: 1. a stationary case; 2. an expansion body; 3. a threaded rod; 4. a threaded sleeve; 5. a supporting strip; 6. a groove; 7. rotating the block; 8. connecting blocks; 9. a spin column; 10. rotating the rod; 11. a handle; 12. a limiting groove; 13. a limiting rod; 14. a limiting block; 15. a limiting plate; 16. and (4) opening.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses a set casing 1, the inflation body 2, threaded rod 3, thread bush 4, support bar 5, recess 6, rotatory piece 7, connecting block 8, column spinner 9, rotary rod 10 and handle 11 part are the parts that general standard spare or technical field personnel know, and its structure and principle all are that this technical staff all can learn through the technical manual or learn through conventional experimental method.

Referring to fig. 1-4, an intervertebral expansion fusion cage with adjustable distance comprises a fixed shell 1, expansion bodies 2 are respectively arranged at the top and the bottom of the fixed shell 1, a threaded rod 3 is movably connected at the left side of the inner cavity of the fixed shell 1, two threaded sleeves 4 are sleeved on the surface of the threaded rod 3, supporting bars 5 are respectively movably connected at the top and the bottom of the threaded sleeves 4, one end of each supporting bar 5, far away from the threaded sleeve 4, penetrates through the outer side of the fixed shell 1 and is movably connected with the expansion body 2, a groove 6 is formed at the right side of the fixed shell 1, a rotating block 7 is arranged in the inner cavity of the groove 6, the right end of the threaded rod 3 penetrates through the inner cavity of the groove 6 and is fixedly connected with the rotating block 7, a connecting block 8 is sleeved on the surface of the rotating block 7, a rotating column 9 is fixedly connected at the right side of the connecting block 8, a rotating rod 10 is fixedly connected at the right side of the rotating column 9, and a handle 11 is fixedly connected at the right end of the rotating rod 10, the surface of the rotating block 7 is contacted with the connecting block 8, the joint of the surface of the threaded rod 3 and the fixed shell 1 is movably connected through a bearing, the joint of the surface of the threaded sleeve 4 and the supporting bar 5 is movably connected through a first rotating shaft, one end of the supporting bar 5 far away from the threaded sleeve 4 is movably connected with the joint of the expansion body 2 through a second rotating shaft, the top and the bottom of the fixed shell 1 are both provided with a limiting groove 12, one side of the two expansion bodies 2 opposite is fixedly connected with a limiting rod 13, one end of the limiting rod 13 far away from the expansion body 2 penetrates through the inner cavity of the limiting groove 12 and is fixedly connected with a limiting block 14, the threads of the two sides of the surface of the threaded rod 3 are opposite, the top and the bottom of the fixed shell 1 are both provided with an opening 16 matched with the supporting bar 5 for use, the front side and the rear side of one side of the two expansion bodies 2 opposite are both fixedly connected with a limiting plate 15, and the surface of the limiting plate 15 is contacted with the fixed shell 1, by arranging the supporting bar 5, the function of supporting the expansion body 2 can be played, by arranging the groove 6, the installation of the rotation block 7 can be facilitated, by arranging the connecting block 8, the rotation of the rotation block 7 can be facilitated, by arranging the handle 11, the user can rotate the rotation rod 10, by arranging the limiting groove 12, the limiting rod 13 and the limiting block 14, the moving range of the expansion body 2 can be limited, by arranging the opening 16, the installation of the supporting bar 5 can be facilitated, by arranging the bearing, the rotation of the threaded rod 3 can be facilitated, by arranging the first rotating shaft and the second rotating shaft, the use of the supporting bar 5 can be facilitated, by arranging the fixing shell 1, the expansion body 2, the threaded rod 3, the threaded sleeve 4, the supporting bar 5, the groove 6, the rotation block 7, the connecting block 8, the rotation column 9, the rotation rod 10 and the handle 11, the problem that the existing expansion type fusion device cannot adjust the distance is solved, this intervertebral expansion type fusion cage with adjustable interval possesses the advantage of adjustable interval, is worth promoting.

During the use, user removal handle 11, handle 11 drives rotary rod 10, column spinner 9 and connecting block 8 and removes, drives connecting block 8 card on the surface of rotatory piece 7, can turning handle 11 afterwards, drives threaded rod 3 and rotates, and threaded rod 3 rotates and drives two thread bush 4 and remove to opposite one side, and thread bush 4 drives inflation body 2 through the cooperation of support bar 5 and keeps away from set casing 1, the interval of two adjustable inflation bodies 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an intervertebral expansion formula fusion cage with adjustable interval, includes stationary casing (1), its characterized in that: the top and the bottom of set casing (1) all are provided with inflation body (2), the left side swing joint of set casing (1) inner chamber has threaded rod (3), the surface cover of threaded rod (3) is equipped with two thread bush (4), the top and the equal swing joint in bottom of thread bush (4) have support bar (5), the one end that thread bush (4) was kept away from in support bar (5) runs through to the outside of set casing (1) and with inflation body (2) swing joint, the right side of set casing (1) is seted up flutedly (6), the inner chamber of recess (6) is provided with rotatory piece (7), the right-hand member of threaded rod (3) runs through to the inner chamber of recess (6) and with rotatory piece (7) fixed connection, the surface cover of rotatory piece (7) is equipped with connecting block (8), the right side fixedly connected with column (9) of connecting block (8), the right side fixedly connected with rotary rod (10) of column spinner (9), the right-hand member fixedly connected with handle (11) of rotary rod (10).

2. An intervertebral adjustable-spacing inflatable cage according to claim 1, characterized in that: the surface of the rotating block (7) is in contact with the connecting block (8), and the joint of the surface of the threaded rod (3) and the fixed shell (1) is movably connected through a bearing.

3. An intervertebral adjustable-spacing inflatable cage according to claim 1, characterized in that: the surface of the threaded sleeve (4) is movably connected with the joint of the support bar (5) through a first rotating shaft, and one end of the support bar (5), far away from the threaded sleeve (4), is movably connected with the joint of the expansion body (2) through a second rotating shaft.

4. An intervertebral adjustable-spacing inflatable cage according to claim 1, characterized in that: spacing groove (12) have all been seted up to the top and the bottom of set casing (1), two equal fixedly connected with gag lever post (13) in the relative one side of inflation body (2), the one end that inflation body (2) were kept away from in gag lever post (13) runs through to the inner chamber and the fixedly connected with stopper (14) of spacing groove (12).

5. An intervertebral adjustable-spacing inflatable cage according to claim 1, characterized in that: the screw thread of threaded rod (3) surface both sides is opposite, opening (16) that use with support bar (5) cooperation are all seted up to the top and the bottom of set casing (1), the equal fixedly connected with limiting plate (15) of front side and the rear side of two relative one sides of inflation body (2), and the surface and the set casing (1) contact of limiting plate (15).