CN113520680B

CN113520680B - Adjustable fusion cage holder

Info

Publication number: CN113520680B
Application number: CN202111083545.XA
Authority: CN
Inventors: 严武; 马康玲; 董明明
Original assignee: Shanghai Kinetic Medical Co Ltd
Current assignee: Shanghai Kinetic Medical Co Ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-01-21
Anticipated expiration: 2041-09-16
Also published as: CN113520680A

Abstract

The invention discloses an adjustable fusion cage holder which comprises an outer tube, a swinging piece, a core rod and a connector. The end part of the outer pipe is provided with a holding part which is provided with a movable groove. The swing member is swingably mounted to the movable groove. The core bar is inserted in the outer tube. The connector is arranged at the end part of the core rod in a swinging way. The swinging piece is provided with a through hole. The holder has a first use state and a second use state. When the plug is in the first use state, the connector is inserted into the through hole, and the connector and the core rod are positioned on the same axis. When the core bar is in the second use state, the connector is inserted into the through hole, and the swinging piece drives the connector to swing relative to the movable groove, so that the connector and the core bar are obliquely arranged. This patent can simplify the operation step to the fusion ware at to a great extent for the holding ware can be fast and accurately put into the assigned position with the fusion ware after docking in the fusion ware, and adjusts the position of fusion ware, has brought the facility for the operation.

Description

Adjustable fusion cage holder

Technical Field

The invention relates to the technical field of medical instruments, in particular to an adjustable fusion cage holder.

Background

Spinal fusion procedures are rather complex procedures that are usually performed by adding a holder to fit securely with the cage and then manipulating the holder to place the cage between the vertebrae. However, in the prior art, the holder is basically of an integral straight rod type structure, and after the fusion cage is placed in a designated position of the intervertebral disc, if the position of the fusion cage in the body is finely adjusted, the angle of the position of the fusion cage in the body can be adjusted only by matching with the holder with an auxiliary tool such as a push rod, so that the operation of the process is complicated, the stability is poor, and the operation process is greatly delayed.

Based on the defects in the prior art, the technical staff in the field are dedicated to make a holder which can accurately place the fusion cage in a specified position and can quickly adjust the position of the fusion cage after years of research.

Disclosure of Invention

The invention aims to provide an adjustable fusion cage holder, which can simplify the operation steps of a fusion cage to a great extent, so that the fusion cage can be quickly and accurately placed at a specified position after the holder is butted with the fusion cage, the position of the fusion cage is adjusted, and convenience is brought to the operation.

The technical scheme provided by the invention is as follows:

an adjustable cage holder, comprising:

the end part of the outer tube is provided with a holding part which is provided with a movable groove;

a swing member swingably mounted to the movable groove;

the core bar is inserted in the outer tube;

the connector is arranged at the end part of the core rod in a swinging way; and

the swinging piece is provided with a through hole for the insertion of the connector;

wherein the holder has a first use state and a second use state;

when the connector is in a first use state, the connector is inserted into the through hole, and the connector and the core rod are positioned on the same axis;

when the connector is in a second use state, the connector is inserted into the through hole, and the swinging piece drives the connector to swing relative to the movable groove, so that the connector and the core rod are obliquely arranged.

In this patent, through rotating the core bar, can dock the connecting head in the screw hole of fusion ware to it is fixed to realize holding the preliminary control of ware to the fusion ware, thereby can be fast and accurately carry the fusion ware to intervertebral assigned position. Further, the accessible operation is held the ware and is come to adjust the position of fusion cage between the intervertebral, specifically, can rotate the core bar to predetermined position earlier, then utilize the intervertebral to the reverse effort of holding the ware for swing piece and connector can be together for the activity groove swing, adjust with the inclination to the connector, thereby can adjust fusion cage in the position of intervertebral more fast and accurately, and then bring very big facility for the operation.

Further preferably, the movable groove is respectively provided with a first pin hole penetrating to the outer wall of the holding part along two side walls perpendicular to the swinging direction of the swinging piece; the two sides of the swinging piece perpendicular to the swinging direction of the swinging piece are respectively provided with a swinging part extending into the movable groove, and the two swinging parts are respectively provided with a second pin hole; when the swinging piece is installed in the movable groove, the two first pin holes and the two second pin holes are coaxially arranged, one first pin hole and one second pin hole which are positioned on the same side are connected through a bolt, a connecting line of the two bolts forms a first rotating axis, and the swinging piece rotates relative to the first rotating axis.

Further preferably, the swinging member forms a first abutting end portion and a second abutting end portion respectively along both sides of the swinging direction thereof; when the connector and the core bar are positioned on the same axis, the first abutting end abuts against one end, far away from the outer tube, of the holding part; when the connector and the core bar are perpendicular to each other, the second abutting end abuts against the side wall of the core bar.

Further preferably, two side walls of the movable groove along the direction perpendicular to the swinging direction of the swinging piece are respectively provided with one of an arc-shaped bulge or an arc-shaped groove; the swinging piece is provided with an extending part extending into the movable groove, and the two sides of the extending part along the direction perpendicular to the swinging direction of the swinging piece are respectively provided with the other one of the arc-shaped bulge or the arc-shaped groove; when the swinging piece is arranged in the movable groove, the arc-shaped bulge and the arc-shaped groove which are positioned on the same side are mutually inserted and matched and are arranged concentrically; the connection line of the circle centers corresponding to the two arc-shaped bulges forms a first rotating axis, and the swinging piece rotates relative to the first rotating axis.

Further preferably, one end of the extending part, which is far away from the swinging part, and one side end of the extending part along the swinging direction of the swinging part are mutually communicated to form a limiting groove; the limit groove is provided with a third abutting end part and a fourth abutting end part which are arranged along the swinging direction of the swinging piece; wherein the third abutting end and the fourth abutting end are arranged perpendicular to each other; when the third abutting end abuts against the side wall of the core rod, the connector and the core rod are positioned on the same axis; when the fourth abutting end abuts against the other side wall opposite to the core bar, the connector and the core bar are arranged perpendicularly to each other.

Further preferably, the core bar has an abutment landing; the abutting ladder platform abuts against a pipe orifice at the bottom of the movable groove and is used for limiting the core rod to move along the axial direction of the outer pipe, so that the core rod has a unique assembling posture along the axial direction of the outer pipe.

Further preferably, the core rod has an abutting annular edge; the inner wall of the limit groove is provided with an abutting groove matched with the contour of the abutting annular edge; the butt joint groove and the through hole are coaxially arranged, and the butt joint annular edge is embedded in the butt joint groove to limit the axial movement of the core rod along the outer pipe, so that the core rod has a unique assembly posture in the axial direction of the outer pipe.

Further preferably, the connector is connected to the core rod through an adjusting block; a second rotation axis is formed at the joint of the core bar and the adjusting block, and the adjusting block rotates along the second rotation axis to drive the connector to swing relative to the core bar; wherein the mandrel is operable to rotate to switch the holder between a first use condition and a second use condition; when the connector is in a first use state, the first rotating axis and the second rotating axis are arranged in an intersecting manner, and the connector and the core rod are positioned on the same axis; when the core bar is in a second use state, the first rotating axis and the second rotating axis are overlapped, and the swinging piece drives the connector to swing relative to the movable groove, so that the connector and the core bar are obliquely arranged. Further preferably, a through groove is formed in the connector along the axis direction of the connector, and one end, far away from the core bar, of the adjusting block is inserted into the through groove; the adjusting block is provided with a chute, and one end of the connector facing the core bar is provided with a pin shaft inserted in the chute; the connector is provided with an external thread, the core bar is operably rotated to lead the connector inserted in the through hole to be screwed into the threaded hole of the fusion device, and in the process of rotating and matching the connector and the threaded hole, the connector drives the pin shaft to slide along one side of the chute far away from the core bar. Further preferably, the core bar is a universal soft bar, and the connector is fixed at the end of the universal soft bar.

Further preferably, one end of the core bar, which is far away from the connector, is provided with two laser scribed lines; the two laser scribed lines are symmetrically arranged on the side wall of the core rod; and the outer tube is provided with a strip-shaped hole penetrating the wall thickness of the outer tube at the position corresponding to the two laser scribed lines; the core bar is operable to rotate, and when the two laser scribed lines and the two bar-shaped holes are aligned one to one, the first rotation axis and the second rotation axis are superposed with each other; and/or a handle is arranged at one end of the outer pipe, which is far away from the holding part; and one end of the core bar, which is far away from the connector, extends to the outer side of one end of the handle, which is back to the holding part.

Further preferably, the range of the inclination angle between the connector and the core bar is greater than or equal to 0 degree and less than or equal to 90 degrees.

The invention has the technical effects that:

1. in this patent, through rotating the core bar, can dock the connecting head in the screw hole of fusion ware to it is fixed to realize holding the preliminary control of ware to the fusion ware, thereby can be fast and accurately carry the fusion ware to intervertebral assigned position. Further, the accessible operation is held the ware and is come to adjust the position of fusion cage between the intervertebral, specifically, can rotate the core bar to predetermined position earlier, then utilize the intervertebral to the reverse effort of holding the ware for swing piece and connector can be together for the activity groove swing, adjust with the inclination to the connector, thereby can adjust fusion cage in the position of intervertebral more fast and accurately, and then bring very big facility for the operation.

2. In this patent, the swing range of the connector relative to the core bar is greater than or equal to 0 degree and less than or equal to 90 degrees. That is to say, the swing piece only needs to drive the connector and swing at 0-90 degrees within range, can reach the effect of adjusting the position of fusing the ware fast and accurately, compares in universal rotation regulation, and the stability and the security of this patent are stronger, and experience the effect better.

3. In this patent, through the laser groove that is equipped with double-phase symmetry on the core bar, and be equipped with a bar hole respectively in the outer tube corresponding to the position of two laser grooves, so, the core bar is at the pivoted in-process, when observing two laser grooves and two bar holes counterpoint one by one, and the swing piece can drive the connector and swing, and the user of being convenient for carries out actual operation.

Drawings

The invention is described in further detail below with reference to the following figures and detailed description:

FIG. 1 is a schematic view of the structure of the product of the present invention in one state;

FIG. 2 is a schematic view of the outer tube and the oscillating member shown in FIG. 1 assembled in this state;

FIG. 3 is a schematic structural view of the holding portion of the outer tube shown in FIG. 1 in this state;

FIG. 4 is a schematic view of the pendulum shown in FIG. 1 in this state;

FIG. 5 is a schematic view of the core rod, the adjusting block and the connecting head shown in FIG. 1 assembled in this state;

FIG. 6 is an exploded perspective view of the core pin, adjustment block and connector shown in FIG. 5;

FIG. 7 is a schematic view of the structure of the product of the present invention in another state;

FIG. 8 is a schematic structural view of the holding portion of the outer tube shown in FIG. 7 in this state;

FIG. 9 is a schematic structural view of the swinging member shown in FIG. 7 in this state;

FIG. 10 is a schematic view of the core rod, the adjusting block and the connecting head shown in FIG. 7 assembled in this state;

FIG. 11 is a schematic view of the core rod and the connecting head of the present invention assembled in another state.

The reference numbers illustrate:

an outer tube 1; a holding section 11; a movable groove 111; a first pin hole 112; an arc-shaped protrusion 113; a strip-shaped aperture 114; a handle 115; an oscillating piece 2; a through hole 21; a swing portion 22; a second pin hole 221; the first abutment end 23; the second abutment end 24; an extension 25; an arc-shaped groove 251; a limiting groove 252; a third abutment end 2521; a fourth abutment end 2522; an abutment groove 2523; a support post 26; a core bar 3; an abutment step 31; laser scribing 32; a rotation groove 33; a fixed portion 34; the third pin hole 341; an abutment collar 35; a connector 4; a through groove 41; a jack 42; an adjusting block 5; a chute 51; the fourth pin hole 52; a first rotation axis 6; a second axis of rotation 7.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.

According to an embodiment of the present invention, as shown in fig. 1 to 11, an adjustable fusion cage holder comprises an outer tube 1, a swinging member 2, a core rod 3 and a connector 4. The end of the outer tube 1 is provided with a holding part 11, and the holding part 11 is provided with a movable groove 111. The swing member 2 is swingably attached to the movable groove 111. The core bar 3 is inserted in the outer tube 1. The connector 4 is swingably mounted to the end of the spindle 3. And the swinging piece 2 is provided with a through hole 21 for the insertion of the connecting head 4. The holding device has a first use state and a second use state. In the first use state, the connector 4 is inserted into the through hole 21, and the connector 4 and the core rod 3 are located on the same axis. In the second use state, the connector 4 is inserted into the through hole 21, and the swinging member 2 drives the connector 4 to swing relative to the movable groove 111, so that the connector 4 and the core rod 3 are obliquely arranged.

In this embodiment, through rotating core bar 3, can dock the screw hole in the fusion cage with connector 4 to it is fixed to realize holding the preliminary control of ware to the fusion cage, thereby can be fast and accurately carry the fusion cage to intervertebral assigned position. Further, the position of the fusion cage between the spine is adjusted by operating the holder, specifically, the core rod 3 can be rotated to a preset position first, then the reverse acting force of the holder between the spine is utilized, so that the swinging piece 2 and the connector 4 can swing together relative to the movable groove 111, the inclination angle of the connector 4 is adjusted, the position of the fusion cage between the spine can be adjusted more quickly and accurately, and great convenience is brought to the operation.

Further, in the present embodiment, referring to fig. 1, the outer tube 1 may have a hollow circular tubular structure, and the core rod 3 may have a solid circular rod-shaped structure and is adapted to the inner contour of the outer tube 1, so that the core rod 3 can rotate more smoothly in the outer tube 1. Further, referring to fig. 2 to 4, the holding portion 11 may have a cylindrical structure and is disposed coaxially with the outer tube 1.

As a further optimization of the present embodiment, referring to fig. 3, one end of the holding part 11 away from the outer tube 1 and one side end of the holding part 11 penetrate each other to form a movable groove 111. That is, the movable groove 111 is opened on one side of the holding portion 11, and the movable groove 111 penetrates only the end wall on one side of the holding portion 11 and does not penetrate the end wall on the other side of the holding portion 11 with respect to the holding portion 11 in the process of extending from one end of the holding portion 11 away from the outer tube 1 toward the outer tube 1. In this way, the bottom wall and the side wall of the movable groove 111 along the swinging direction of the swinging member 2 can be perpendicular to each other, so that the swinging member 2 can be limited to swing back and forth within the range of 0-90 degrees, and thus, the fusion cage can be ensured to deflect towards one side only in the whole process of the operation.

As a preferred example of the present embodiment, with reference to fig. 3, the movable groove 111 has a first pin hole 112 penetrating to the outer wall of the holding portion 11 along two side walls perpendicular to the swinging direction of the swinging member 2. Correspondingly, referring to fig. 2 to 4, the swinging member 2 is provided with a swinging portion 22 extending into the movable groove 111 along two sides perpendicular to the swinging direction thereof. Preferably, the swinging portion 22 may have a disk-shaped structure to reduce resistance generated during swinging thereof, and the swinging portion 22 may be integrally formed with the swinging member 2 to improve stability during swinging thereof, but is not limited thereto. In this example, referring to fig. 2, the two swinging portions 22 are respectively opposite to two opposite side walls of the movable slot 111, and a gap is preset between each swinging portion 22 and the adjacent side wall of the movable slot 111 to provide a certain moving space for the swinging portion 22. Further, the two swing portions 22 are respectively formed with a second pin hole 221. When the swinging member 2 is installed in the movable groove 111, the two first pin holes 112 and the two second pin holes 221 are coaxially arranged, and a first pin hole 112 and a second pin hole 221 located on the same side are connected through a pin, a connection line of the two pins forms a first rotation axis 6, and the swinging member 2 can rotate relative to the first rotation axis 6.

Further, in the present embodiment, referring to fig. 1, 2 and 4, the swinging member 2 is formed with a first abutting end portion 23 and a second abutting end portion 24 on both sides in its swinging direction, respectively. When the first abutting end part 23 abuts against one end of the holding part 11 far away from the outer tube 1, the connector 4 and the core rod 3 are located on the same axis, so that preliminary holding and fixing of the fusion cage and more rapid and accurate conveying of the fusion cage to an intervertebral designated position can be realized. When the second abutting end 24 abuts against the sidewall of the core bar 3, the swinging member 2 can drive the connecting head 4 to swing to a state perpendicular to the core bar 3.

It is worth mentioning that, the swing amplitude of the swing piece 2 has been restricted in the butt joint cooperation of the first butt end portion 23 and the butt joint cooperation of the holding portion 11 far away from one end of the outer tube 1 and the butt joint cooperation of the second butt end portion 24 and the side wall of the core rod 3, so that the swing piece 2 only needs to drive the connector 4 to swing within the range of 0-90 degrees, the effect of adjusting the position of the fusion device quickly and accurately can be achieved, compared with the universal rotation adjustment, the stability and the safety of the utility model are stronger, and the experience effect is better.

In this embodiment, referring to fig. 5 and 6, the connecting head 4 can be connected to the core rod 3 via an adjusting block 5. Wherein, the junction of core bar 3 and regulating block 5 forms a second axis of rotation 7, and regulating block 5 rotates along second axis of rotation 7 to drive connector 4 and swing for core bar 3. Specifically, referring to fig. 6, a rotation slot 33 may be formed at an end of the core rod 3 facing the connector 4, and the rotation slot 33 penetrates through two opposite side ends of the core rod 3 during the extending process, so that two opposite fixing portions 34 are formed at the end of the core rod 3. Furthermore, the two fixing portions 34 are both provided with a third pin hole 341, and one end of the adjusting block 5 facing the core bar 3 is provided with a fourth pin hole 52 penetrating through the thickness of the core bar 3, when the core bar 3 and the adjusting block 5 are butted, the fourth pin hole 52 is located between the two third pin holes 341, and the three are coaxially arranged and connected through a pin. The axis of this bolt forms second axis of rotation 7, and adjusting block 5 can rotate along second axis of rotation 7 to it can drive connector 4 for core bar 3 swing to realize adjusting block 5.

Further, in this embodiment, with reference to fig. 5 and fig. 6, the connecting head 4 is provided with a through groove 41 along the axial direction thereof, and one end of the adjusting block 5 away from the core bar 3 is inserted into the through groove 41. It should be mentioned that the through groove 41 can be a square groove structure, the adjusting block 5 can be a square column structure, and the contour of the adjusting block 5 is matched with the through groove 41. Thus, in the process of rotating the core bar 3, the adjusting block 5 can drive the connector 4 to rotate. Of course, in this embodiment, any limitation may not be imposed on the specific structures of the through groove 41 and the adjusting block 5, as long as the adjusting block 5 can drive the connecting head 4 to rotate, which is within the protection scope of this patent, and redundant description is not repeated herein.

Further, the side wall of the adjusting block 5 is provided with a sliding groove 51 penetrating through the wall thickness thereof, and the sliding groove 51 is extended along the length direction of the adjusting block 5. Correspondingly, the side wall of the connecting head 4 facing one end of the core rod 3 is provided with a plug hole 42 penetrating the wall thickness thereof, and the middle position of the plug hole 42 is located in the through groove 41 of the connecting head 4. When the adjusting block 5 is inserted into the through groove 41, a pin is disposed to sequentially penetrate into one end of the insertion hole 42, the sliding groove 51 and the other end of the insertion hole 42, so as to fix and slide the adjusting block 5 and the connector 4.

Further, in this embodiment, referring to fig. 1, 2 and 6, the stem 3 is operatively rotatable to switch the holder between the first and second use conditions.

When the holder is in a first use state, the first rotating axis 6 and the second rotating axis 7 are intersected, and the connector 4 and the core rod 3 are positioned on the same axis. One end of the connector 4, which is far away from the core rod 3, extends to the outer side of the through hole 21 of the swinging piece 2, and the connector 4 is provided with an external thread for butting the threaded hole of the fusion cage. After the end of the connector 4 is butted with the threaded hole of the fusion cage, the core rod 3 can be rotated by the aid of the connector 4 to be gradually screwed into the threaded hole of the fusion cage, so that the fusion cage can be held and fixed, and the fusion cage can be conveyed to an intervertebral designated position more quickly and accurately. Wherein, the connector 4 can drive the pin shaft to slide along one side of the chute 51 far away from the core bar 3 in the process of rotating and matching with the threaded hole. It should be noted that the length of the sliding slot 51 is the moving distance of the connecting head 4.

When the holder is in the second use state, the first rotation axis 6 and the second rotation axis 7 are arranged in an overlapping manner. So, swing 2 can drive connector 4 and swing for activity groove 111, makes to be the slope setting between connector 4 and the core bar 3 to can be more quick and accurately adjust the position of fusing the ware, and then bring very big facility for the operation.

Further, in the present embodiment, referring to fig. 6, the core bar 3 has an abutment step 31, and the abutment step 31 abuts against the mouth of the bottom of the movable groove 111 to restrict the movement of the core bar 3 in the axial direction of the outer tube 1, so that the core bar 3 has a unique fitting posture in the axial direction of the outer tube 1. That is, the step is used to prevent the core rod 3 from shifting along the axial direction of the outer tube 1, so that the first rotation axis 6 and the second rotation axis 7 are both located on the same rotation plane, and further, the core rod 3 can be rotated to make the first rotation axis 6 and the second rotation axis 7 intersect or coincide, so as to complete the switching of the different using states of the holder.

Further, in this embodiment, referring to fig. 5, two laser scribe lines 32 are disposed at one end of the core rod 3 away from the connector 4, and the two laser scribe lines 32 are symmetrically disposed on the side wall of the core rod 3. Correspondingly, referring to fig. 1, the outer tube 1 is provided with a strip-shaped hole 114 through the wall thickness thereof at a position corresponding to the two laser scribes 32. The core rod 3 is operable to rotate such that the first axis of rotation 6 and the second axis of rotation 7 coincide with each other when the two laser scribes 32 and the two bar holes 114 are aligned one to one. Preferably, the width of stripe shaped aperture 114 is greater than or equal to the width of laser score line 32 to allow the user to more visually observe the overlap. In this embodiment, two symmetrical laser scribed lines 32 are arranged on the core bar 3, and a bar-shaped hole 114 is respectively arranged at the position of the outer tube 1 corresponding to the two laser scribed lines 32, so that in the rotating process of the core bar 3, when the two laser scribed lines 32 and the two bar-shaped holes 114 are observed to be aligned one by one, the swinging member 2 can drive the connector 4 to swing, which is convenient for a user to perform actual operation.

Further, in this embodiment, referring to fig. 1, a handle 115 is disposed at an end of the outer tube 1 away from the gripping portion 11 for a user to grip, so as to better operate the gripper. Furthermore, one end of the core rod 3 far away from the connector 4 extends to the outer side of one end of the handle 115 opposite to the holding part 11, and a user can knead the part of the core rod 3 extending to the outer side of the handle 115, so that the whole core rod 3 can be rotated to switch between different using states of the holder.

Further, in the present embodiment, referring to fig. 1 to 4, the swinging member 2 is used for butting one end surface of the fusion device to form a concave arc surface so as to be adapted to the configuration of the butt end of the fusion device, so that the fusion device and the holder can be more tightly butted and matched. Further, the arc surface may be provided with two support posts 26, and the two support posts 26 are preferably provided on two opposite sides of the through hole 21, but not limited thereto. The two abutting columns 26 are used for abutting against the two blind holes of the fusion device before the connector 4 is screwed into the threaded hole, and play a role in preliminarily fixing the fusion device.

Of course, as an alternative embodiment of the present patent, the swinging member 2 is not limited to being mounted to the movable slot 111 by means of a latch hinge. Specifically, referring to fig. 7 to 10, the two side walls of the movable groove 111 along the direction perpendicular to the swinging direction of the swinging member 2 are respectively provided with one of an arc-shaped protrusion 113 and an arc-shaped groove 251; and the swinging member 2 is provided with an extending part 25 extending into the movable groove 111, and two sides of the extending part 25 along the direction perpendicular to the swinging direction of the swinging member 2 are respectively provided with the other one of the arc-shaped protrusion 113 or the arc-shaped groove 251. When the swinging member 2 is installed in the movable groove 111, the arc-shaped protrusions 113 and the arc-shaped grooves 251 located on the same side are mutually inserted and fitted and arranged concentrically, a connection line of circle centers corresponding to the two arc-shaped protrusions 113 forms a first rotating axis 6, and the swinging member 2 rotates relative to the first rotating axis 6. In this patent, the mode that the swing piece 2 rotated through arc-shaped protrusion 113 and arc-shaped groove 251 cooperation also can reach the effect equal to the above-mentioned embodiment, and this kind of form is stronger at the stability of rotation in-process, and experience effect is better. Preferably, the holding part 11 is provided with an arc protrusion 113 at a position corresponding to two side walls of the movable groove 111, and the extending part 25 is provided with an arc groove 251 adapted to the arc protrusion 113 at two sides perpendicular to the swinging direction of the swinging member 2. In the embodiment, the centers of the arc-shaped protrusions 113 and the arc-shaped grooves 251 point to the end of the holding portion 11 away from the outer tube 1, and the swinging member 2 can rotate around the first rotation axis 6 corresponding to the center of the circle.

Further, in the present embodiment, referring to fig. 8 and 9, the movable grooves 111 penetrate through two opposite side walls of the holding portion 11; one end of the extending portion 25 away from the swinging member 2 and one end of the extending portion 25 along the swinging direction of the swinging member 2 are communicated with each other to form a limit groove 252. The stopper groove 252 has a third abutting end 2521 and a fourth abutting end 2522 provided along the swinging direction of the swinging member 2, and the third abutting end 2521 and the fourth abutting end 2522 are provided perpendicular to each other. When the connector 4 and the core rod 3 are located on the same axis, the third abutting end 2521 abuts against the sidewall of the core rod 3, and at this time, the primary holding and fixing of the fusion cage and the more rapid and accurate transportation of the fusion cage to the designated intervertebral position can be realized. When the connector 4 and the core rod 3 are disposed perpendicular to each other, the fourth abutting end 2522 abuts against the other side wall of the core rod 3, and the swinging member 2 can drive the connector 4 to swing to a state perpendicular to the core rod 3. That is, the functional effects achieved by the third abutment end portion 2521 and the fourth abutment end portion 2522 are the same as the functional effects achieved by the first abutment end portion 23 and the second abutment end portion 24 of the above-described embodiment. The swing amplitude of the swing piece 2 is limited, so that the swing piece 2 only needs to drive the connector 4 to swing within the range of 0-90 degrees, and the effect of quickly and accurately adjusting the position of the fusion device can be achieved.

Further, in the present embodiment, referring to fig. 9 and 10, the structures of the connection head 4 and the adjustment block 5 are the same as those of the above-described embodiment. The core bar 3 of this embodiment, however, is not provided with the abutment ramp 31 of the above-described embodiment, and in particular the core bar 3 has an abutment collar 35. The inner wall of the limiting groove 252 is provided with an abutting groove 2523 matched with the contour of the abutting annular edge 35. The abutment groove 2523 and the through hole 21 are provided coaxially, and the abutment annular rim 35 is fitted into the abutment groove 2523 and is rotatable only in the axial direction thereof within the abutment groove 2523 to restrict the movement of the stem 3 in the axial direction of the outer tube 1, so that the stem 3 has a unique assembly posture in the axial direction of the outer tube 1.

Of course, as a further alternative embodiment of this patent, referring to fig. 11, the core rod 3 is not limited to the above-mentioned configuration, but it may be a universal soft rod, and the connecting head 4 is fixed to the end of the universal soft rod. In this embodiment, the universal hose can be bent freely, so the connector 4 can swing freely as a universal flexible rod. After the connector 4 is inserted into the through hole 21, the universal hose is only required to be rotated, the universal hose can transmit torque, and the connector 4 is tightened and disassembled. And the swinging piece 2 can be swung at will to adjust the inclination angles of the connector 4 and the universal hose, so that the operation of a user is facilitated, and further great convenience can be brought to the operation. It should be noted that, in the present embodiment, the universal hose may be assembled in the outer tube 1 in the above-mentioned structural form in which the swinging member 2 is installed in the movable groove 111 in a hinged manner by a bolt, and of course, the universal hose may also be assembled in the outer tube 1 in the above-mentioned structural form in which the swinging member 2 is installed in the movable groove 111 in a mutually embedded manner by the arc-shaped protrusion 113 and the arc-shaped groove 251, which are within the protection scope of the present patent.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An adjustable cage retainer, comprising:

a swinging member swingably attached to the movable groove, the swinging member swinging with respect to the outer tube; the core bar is inserted in the outer tube;

wherein the holder has a first use state and a second use state;

2. The adjustable cage holder of claim 1,

the movable groove is respectively provided with a first pin hole penetrating to the outer wall of the holding part along two side walls perpendicular to the swinging direction of the swinging piece; and

the two sides of the swinging piece, which are perpendicular to the swinging direction of the swinging piece, are respectively provided with a swinging part extending into the movable groove, and the two swinging parts are respectively provided with a second pin hole;

when the swinging piece is installed in the movable groove, the two first pin holes and the two second pin holes are coaxially arranged, one first pin hole and one second pin hole which are positioned on the same side are connected through a bolt, a connecting line of the two bolts forms a first rotating axis, and the swinging piece rotates relative to the first rotating axis.

3. The adjustable cage holder of claim 2,

the two sides of the swinging piece along the swinging direction of the swinging piece are respectively provided with a first abutting end part and a second abutting end part;

when the connector and the core bar are positioned on the same axis, the first abutting end abuts against one end, far away from the outer tube, of the holding part; when the connector and the core bar are perpendicular to each other, the second abutting end abuts against the side wall of the core bar.

4. The adjustable cage holder of claim 1,

two side walls of the movable groove, which are perpendicular to the swinging direction of the swinging piece, are respectively provided with one of an arc-shaped bulge or an arc-shaped groove; and

the swinging piece is provided with an extending part extending into the movable groove, and the two sides of the extending part along the swinging direction perpendicular to the swinging piece are respectively provided with the other one of the arc-shaped bulge or the arc-shaped groove;

when the swinging piece is arranged in the movable groove, the arc-shaped bulge and the arc-shaped groove which are positioned on the same side are mutually inserted and matched and are arranged concentrically;

the connection line of the circle centers corresponding to the two arc-shaped bulges forms a first rotating axis, and the swinging piece rotates relative to the first rotating axis.

5. The adjustable cage holder of claim 4,

one end of the extending part, which is far away from the swinging part, and one side end of the extending part along the swinging direction of the swinging part are communicated with each other to form a limiting groove; the limit groove is provided with a third abutting end part and a fourth abutting end part which are arranged along the swinging direction of the swinging piece;

wherein the third abutting end and the fourth abutting end are arranged perpendicular to each other; when the third abutting end abuts against the side wall of the core rod, the connector and the core rod are positioned on the same axis; when the fourth abutting end abuts against the other side wall opposite to the core bar, the connector and the core bar are arranged perpendicularly to each other.

6. The adjustable cage holder according to claim 2 or 3, wherein the core bar has an abutment landing;

the abutting ladder platform abuts against the pipe orifice at the bottom of the movable groove and is used for limiting the core bar to move along the axial direction of the outer pipe, so that the core bar has a unique assembling posture along the axial direction of the outer pipe.

7. The adjustable fusion device holder of claim 5, wherein the mandrel has an abutment collar;

the inner wall of the limit groove is provided with an abutting groove matched with the contour of the abutting annular edge;

the butt joint groove and the through hole are coaxially arranged, and the butt joint annular edge is embedded in the butt joint groove to limit the axial movement of the core rod along the outer pipe, so that the core rod has a unique assembly posture in the axial direction of the outer pipe.

8. The adjustable cage holder according to any of claims 2-5, wherein the connector is connected to the core rod via an adjustment block;

a second rotation axis is formed at the joint of the core bar and the adjusting block, and the adjusting block rotates along the second rotation axis to drive the connector to swing relative to the core bar;

wherein the mandrel is operable to rotate to switch the holder between a first use condition and a second use condition;

when the connector is in a first use state, the first rotating axis and the second rotating axis are arranged in an intersecting manner, and the connector and the core rod are positioned on the same axis;

when the core bar is in a second use state, the first rotating axis and the second rotating axis are overlapped, and the swinging piece drives the connector to swing relative to the movable groove, so that the connector and the core bar are obliquely arranged.

9. The adjustable cage holder of claim 8,

a through groove is formed in the connector along the axis direction of the connector, and one end, far away from the core bar, of the adjusting block is inserted into the through groove; the adjusting block is provided with a chute, and one end of the connector facing the core bar is provided with a pin shaft inserted in the chute;

the connector is provided with an external thread, the core bar is operably rotated to lead the connector inserted in the through hole to be screwed into the threaded hole of the fusion device, and in the process of rotationally matching the connector and the threaded hole, the connector drives the pin shaft to slide along one side of the chute far away from the core bar.

10. The adjustable cage holder according to any one of claims 1-5, wherein the core bar is a universal soft bar, and the connector is fixed to the end of the universal soft bar.

11. The adjustable cage holder of claim 8,

one end of the core bar, which is far away from the connector, is provided with two laser scribed lines; the two laser scribed lines are symmetrically arranged on the side wall of the core rod; and the outer tube is provided with a strip-shaped hole which is communicated with the wall thickness of the outer tube at the position corresponding to the two laser scribed lines; the core bar is operable to rotate, and when the two laser scribed lines and the two bar-shaped holes are aligned one to one, the first rotation axis and the second rotation axis are superposed with each other;

and/or a handle is arranged at one end of the outer pipe, which is far away from the holding part; and one end of the core bar, which is far away from the connector, extends to the outer side of one end of the handle, which is back to the holding part.

12. The adjustable cage holder of any one of claims 1-5,

the range of the inclination angle between the connector and the core rod is more than or equal to 0 degree and less than or equal to 90 degrees.