CN219000749U - Fusion cage holder and system - Google Patents

Abstract

The utility model discloses a fusion device holder and a fusion device holder system, which belong to the technical field of medical appliances, wherein the fusion device holder comprises a main rod, the front end of the main rod is provided with a screw rod section in threaded connection with an appliance connecting hole in the middle of the rear side wall of the fusion device, the diameter of the main rod is larger than that of the screw rod section, the end face of the main rod provided with the screw rod section is used for abutting against the surface of the rear side wall of the fusion device, and the rear end of the main rod is provided with a handle. The fusion device holder and the system have simple structure and convenient operation, the diameter of the main rod is larger than that of the screw rod section, so that the strength is increased, the stress of the screw rod section is dispersed, and deformation failure caused by overlarge stress of the screw rod section is avoided when the fusion device is spread after being implanted into a human body.

Description

Fusion cage holder and system

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a fusion device holder and a fusion device system.

Background

Aiming at the common spinal surgery disease of cervical intervertebral disc protrusion, the current effective treatment method is to perform cervical vertebra operation. In order to restore the height and physiological radian of the cervical vertebra, the cervical vertebra is instantly stabilized, and bone grafting fusion is needed to be carried out in a decompression area, wherein the anterior cervical decompression bone grafting fusion is a common operation method for clinically treating cervical spondylosis, and a fusion device is needed to be used for clamping the fusion device to be implanted into the intervertebral disc in the operation.

The existing fusion device is various, for example, patent application CN211583677U discloses a cervical vertebra self-stabilizing fusion device and implantation system thereof, the system comprises a device, the device comprises: the sliding sleeve is internally provided with sliding holes which are axially arranged along the sliding sleeve; the gripping head is provided with a proximal rod and a pair of gripping arms extending from the proximal rod, the gripping arms are provided with free ends, tapered parts and parts close to the proximal rod which are sequentially connected, the parts close to the proximal rod and the proximal rod of the gripping arms are slidably accommodated in the sliding holes, the free ends of the gripping arms extend out of the sliding holes, the free ends of the gripping arms are provided with gripping members, and the gripping members are matched with members to be gripped; and, a connector, the proximal shaft being connected to the first end of the connector; wherein, the lateral wall outside of connecting piece is formed with first dog, and the lateral wall inside of sliding sleeve is formed with the second dog, is equipped with the elastic component between first dog and the second dog to realize holding to the fusion ware and get.

According to research, the gripper is complex in structure, complex in operation, and easy to deform and lose efficacy due to overlarge stress of the gripper head, so that the use requirement in operation can not be met.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a fusion device holder and a system which are simple in structure, simple and convenient to operate and capable of avoiding deformation failure caused by overlarge stress.

In order to solve the technical problems, the utility model provides the following technical scheme:

in one aspect, the fusion device holder comprises a main rod, the front end of the main rod is provided with a screw rod section in threaded connection with an instrument connection hole in the middle of the rear side wall of the fusion device, the diameter of the main rod is larger than that of the screw rod section, the end face of the screw rod section is arranged on the main rod to abut against the surface of the rear side wall of the fusion device, and the rear end of the main rod is provided with a handle.

Further, the mobile jib is including the first pole portion that is located the front portion and the second pole portion that is located the rear portion, the diameter of second pole portion is greater than the diameter of first pole portion, the screw rod section is located the front end of first pole portion, the diameter of first pole portion is greater than the diameter of screw rod section, first pole portion is equipped with the terminal surface of screw rod section is used for leaning on the fusion ware back lateral wall surface.

On the other hand, a fusion device system is provided, and comprises a fusion device and the fusion device holder, wherein an instrument connecting hole is formed in the middle of the rear side wall of the fusion device, and the instrument connecting hole is a threaded hole matched with the screw section.

Further, the fusion device comprises a fusion device main body, and is characterized in that a nail placing window is formed in the rear side wall of the fusion device main body, a spreading nail is arranged in the nail placing window, and the fusion device comprises:

the expanding nail comprises a vertical nail body and transverse stop rods which are perpendicular to the nail body and are in sliding fit with two inner side walls of the nail placing window, and through holes which are communicated with the nail placing window and used for the nail body to penetrate out are formed in the surface of the fusion device main body.

Further, the middle part of fusion ware main part is equipped with vertical bone grafting cavity, the anterior left and right sides of fusion ware main part be equipped with the horizontal through-hole that bone grafting cavity is linked together, it has the flank to articulate in the horizontal through-hole, the flank is including articulating articulated connecting portion in the horizontal through-hole, thereby can rotate after being equipped with the drive and stretch out the pterygoid lamina portion of fusion ware main part side, the other end of articulated connecting portion is equipped with the flank and withdraws drive portion, the both sides wall surface of fusion ware main part is equipped with and is used for holding when pterygoid lamina portion does not stretch out the accommodation groove of pterygoid lamina portion.

Further, the fusion device system comprises a spreading nail spreader, the spreading nail spreader comprises a first sleeve, a through hole for a main rod of the fusion device to pass through is formed in the first sleeve, and a first U-shaped driving head for inserting the nail placing window to drive the transverse stop rod is arranged at the front end of the first sleeve.

Further, a groove is formed in one side of the surface of the nail placing window communicated with the through hole, the groove penetrates through the rear side wall surface of the fusion device main body, and the distance between the axis of the nail body and the rear surface of the rail rod is smaller than the distance between the axis of the nail body and the rear side wall surface of the fusion device main body;

the fusion device system comprises a spreading nail extractor, the spreading nail extractor comprises an operating rod, the front end of the operating rod is used as an abutting part matched with the rear surface of the transverse rod and the rear side wall surface of the fusion device main body, and one side of the front end of the operating rod is provided with a protrusion for being inserted into the groove.

Further, outer guide grooves are formed in the outer surfaces of the two side walls of the fusion device main body, and serve as the accommodating grooves;

the fusion device system comprises a side wing spreader, the side wing spreader comprises a second sleeve, a through hole for a main rod of the fusion device to pass through is formed in the second sleeve, and a second U-shaped driving head used for being inserted into the outer guide groove to drive the wing plate part is arranged at the front end of the second sleeve.

Furthermore, inner guide grooves are formed in the two inner side walls of the fusion device main body, and sockets are formed in positions, corresponding to the inner guide grooves, in the nail placing window;

the fusion device system comprises a side wing retraction device, the side wing retraction device comprises a third sleeve, a through hole for a main rod of the fusion device to pass through is formed in the third sleeve, and a third U-shaped driving head used for being inserted into the inner guide groove through the socket to drive the side wing retraction driving part is arranged at the front end of the third sleeve.

Further, the rear portion of mobile jib is equipped with flat section, and each sleeve pipe all includes sleeve pipe main part and is located sleeve pipe main part rear is used for following flat section cover is established location installation department on the mobile jib, the cross section of sleeve pipe main part is semi-circular, the cross section of location installation department is greater than semicircular arc, wherein:

a driving wrench is arranged on the positioning and mounting part;

and/or the rear part of the main rod is provided with a threaded section in front of the flat section, and the main rod is connected with a knob which can be matched with the threaded section in a sliding way.

The utility model has the following beneficial effects:

the fusion device holder and the system thereof comprise a main rod, wherein the front end of the main rod is provided with a screw rod section in threaded connection with an instrument connecting hole in the middle of the rear side wall of the fusion device, the diameter of the main rod is larger than that of the screw rod section, the end face of the main rod provided with the screw rod section is used for abutting against the surface of the rear side wall of the fusion device, and the rear end of the main rod is provided with a handle.

Drawings

FIG. 1 is a schematic top cross-sectional view of a cage in a cage system of the present utility model;

FIG. 2 is a schematic view of the structure of the cage system of the present utility model with (a) a rear cross-sectional view, (b) a side view, and (c) a perspective view, when the cage struts are not deployed;

FIG. 3 is a schematic view of the structure of the cage system of the present utility model when the staples are spread out-wherein (a) is a rear view and (b) is a rear cross-sectional view and additionally shows an enlarged view at the staple placement window;

fig. 4 is a schematic diagram II of a structure of a cage of the cage system when the opening nail of the cage is opened, wherein (a) is a perspective view in one direction, and (b) is a perspective view in the other direction;

FIG. 5 is a schematic view of the structure of the opening pin of the fusion cage in the fusion cage system of the present utility model;

FIG. 6 is a schematic view of the side wings of the fusion device in the fusion device system of the present utility model shown in a deployed configuration, wherein (a) is a top view and (b) is a perspective view;

FIG. 7 is a schematic view of the cage holder of the cage system of the present utility model;

FIG. 8 is a schematic diagram of the engagement of a cage holder and cage in the cage system of the present utility model;

FIG. 9 is a schematic structural view of a distractor of distractor nail in the cage system of the present utility model, wherein (a) is a side view and (b) is a top view;

FIG. 10 is a schematic illustration of the cooperation of the distractor and the cage holder of the cage system of the present utility model;

FIG. 11 is a schematic view of the cooperation of the distractor pin, the cage retainer and the cage in the cage system of the present utility model, wherein (a) is a side view and (b) is an enlarged view of the flattened section of the cage retainer stem;

FIG. 12 is a schematic view of the use of the distractor of the nail in the cage system of the present utility model;

FIG. 13 is a schematic view of the structure of the distractor of the fusion system of the utility model, with (a) a side view and (b) a top view;

FIG. 14 is a schematic view of the deployment state of the distractor screw ejector in the cage system of the present utility model;

FIG. 15 is a schematic view of the construction of a side wing distractor in the cage system of the present utility model, wherein (a) is a side view and (b) is a top view;

FIG. 16 is a schematic view of the engagement of a side wing distractor and a cage holder in the cage system of the present utility model;

FIG. 17 is a schematic view of the use of a side wing distractor in the cage system of the present utility model;

FIG. 18 is a schematic view of the configuration of a wing retractor in the cage system of the present utility model wherein (a) is a side view and (b) is a top view;

FIG. 19 is a schematic view of the engagement of a side wing retractor and a cage retainer in the cage system of the present utility model;

FIG. 20 is a schematic view of the use of the wing retractor in the cage system of the present utility model.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In one aspect, as shown in fig. 7-8, the fusion device holder 4 comprises a main rod 41, a screw rod section 42 in threaded connection with an instrument connection hole in the middle of the rear side wall of the fusion device is arranged at the front end of the main rod 41, the diameter D of the main rod 41 is larger than the diameter D of the screw rod section 42, the end face of the main rod 41 provided with the screw rod section 42 is used for abutting against the surface of the rear side wall of the fusion device, and a handle 43 is arranged at the rear end of the main rod 41.

In use, the hand-held handle 43 is used for screwing the screw rod section 42 at the front end of the main rod 41 into the instrument connecting hole in the middle of the rear side wall of the fusion device.

The fusion device holder comprises the main rod, the front end of the main rod is provided with the screw rod section which is in threaded connection with the instrument connecting hole in the middle of the rear side wall of the fusion device, the diameter of the main rod is larger than that of the screw rod section, the end face of the main rod provided with the screw rod section is used for abutting against the surface of the rear side wall of the fusion device, and the rear end of the main rod is provided with the handle.

As shown in fig. 7, to give consideration to the strength of the main rod 41 and to facilitate the incision in the insertion, the main rod 41 may include a first rod portion 411 at the front and a second rod portion 412 at the rear, the second rod portion 412 having a diameter larger than that of the first rod portion 411, the screw section 42 being located at the front end of the first rod portion 411, the first rod portion 411 having a diameter larger than that of the screw section 42, and the first rod portion 411 being provided with an end face of the screw section 42 for abutting against the rear side wall surface of the cage.

In another aspect, the present utility model provides a fusion cage system, as shown in fig. 1-20, comprising a fusion cage and a fusion cage holder 4 as described above, wherein the middle of the rear sidewall of the fusion cage is provided with an instrument attachment hole, which is a threaded hole 17 that mates with the screw section 42. Since the structure of the cage holder 4 is the same as above, a detailed description thereof will be omitted.

The fusion device system comprises the main rod, the front end of the main rod is provided with the screw rod section which is in threaded connection with the instrument connecting hole in the middle of the rear side wall of the fusion device, the diameter of the main rod is larger than that of the screw rod section, the end face of the main rod, which is provided with the screw rod section, is used for abutting against the surface of the rear side wall of the fusion device, and the rear end of the main rod is provided with the handle.

The inventor finds that the implanted interbody fusion cage is difficult to closely adhere to the upper cervical vertebra body and the lower cervical vertebra body due to the fact that the surface of the cervical vertebra body is inclined by 5-10 degrees, the front-back heights of the vertebral bodies are inconsistent (front-back height is low), and the upper and lower surfaces of the vertebral bodies are irregular, so that the phenomenon that the fusion cage slides out from the vertebral bodies easily occurs, and the operation fails. To solve this problem, the present utility model preferably adopts the following structural form:

as shown in fig. 1-3, the fusion device comprises a fusion device main body 1, wherein a nail placing window 11 is arranged on the rear side wall of the fusion device main body 1, a spreading nail 2 is arranged in the nail placing window 11, and the fusion device comprises:

the opening nail 2 comprises a vertical nail body 21 and a transverse bar 22 which is perpendicular to the nail body 21 and is in sliding fit with two inner side walls of the nail placing window 11, and a through hole 12 which is communicated with the nail placing window 11 and is used for the nail body 21 to penetrate out is arranged on the surface of the fusion device main body 1.

Further, the nail placing window 11 may have an initial installation position and a spreading position, in which the end of the nail body 21 of the spreading nail 2 is located in the through hole 12 and does not penetrate out of the surface of the fusion cage body 1; in the open position, the rail rod 22 of the open pin 2 is in interference fit (tight fit) with the two inner side walls of the pin placing window 11, and the tail end of the pin body 21 of the open pin 2 passes through the through hole 12 and out of the surface of the fusion device main body 1.

When the fusion device is used in operation, the fusion device is firstly held by the fusion device holder 4 and implanted to a proper position, then the spreader rod 22 of the spreader nail 2 is driven by the spreader nail spreader 5, and the spreader rod 22 slides in the two inner side walls of the nail placing window 11, so that the spreader nail 2 slides to the spreading position from the initial installation position, and the tail end of the nail body 21 of the spreader nail 2 penetrates out of the surface of the fusion device main body 1 through the through hole 12 and is pricked into the vertebral body, so that the implantation of the fusion device is completed.

In this embodiment, the spreader nail 2 is in the spreading position, the rail rod 22 of the spreader nail 2 is in interference fit with two inner side walls of the nail placing window 11, and the tail end of the nail body 21 of the spreader nail 2 penetrates out of the surface of the fusion device main body 1 through the through hole 12, so that after the fusion device is implanted to a proper position, the spreader nail 2 is driven to slide to the spreading position from the initial installation position, the tail end of the spreader nail 2 penetrates out of the surface of the fusion device main body 1 through the through hole 12 and is pricked into the vertebral body, the stability of the implanted fusion device is improved, the fusion device can be prevented from sliding out from the vertebral body, and the spreader nail 2 is in interference fit with two inner side walls of the nail placing window 11 at the spreading position, the spreader nail 2 is prevented from falling out, and the stability of the inserted vertebral body of the spreader nail 2 is ensured. The utility model is mainly suitable for filling the intervertebral space after the excision of the intervertebral disc in cervical vertebra surgery.

Further, the nail placing window 11 may also have an intermediate transition position between the initial installation position and the open position, in which the rail 22 of the open nail 2 is in interference fit with the two inner side walls of the nail placing window 11.

As shown in fig. 3 (b), the width L1 of the stapling window 11 at the open position is preferably greater than the width L2 at the intermediate transition position; the width L3 of the nail placing window 11 at the initial mounting position is preferably larger than the width L2 at the intermediate transition position, that is, the interference fit of the transverse bar 22 of the expanding nail 2 at the intermediate transition position is larger than the interference fit at the initial mounting position and the expanding position, so that the transverse bar 22 is from the initial mounting position to the expanding position through the intermediate transition position during the expanding process of the expanding nail 2, and the state of the transverse bar 22 in the nail placing window 11 is from loose to ensure the stability of the expanding nail 2 in the final expanding state (expanding position). In the initial installation position, the rail rod 22 of the opening nail 2 and the two inner side walls of the nail placing window 11 can also be in interference fit so as to prevent the opening nail 2 from being separated from the nail placing window 11 in the initial installation position.

As shown in FIG. 3, the number of the nail placing windows 11 and the number of the expanding nails 2 are preferably two, and the centers of the two nail placing windows and the expanding nails are symmetrically distributed on two sides of the rear side wall of the fusion device main body 1, namely, the two expanding nails 2 are parallel to each other but opposite in direction, so that the two expanding nails 2 can be respectively inserted into the upper vertebral body and the lower vertebral body after being expanded, the stability of the implanted fusion device is improved, and the fusion device can be better prevented from sliding out from the vertebral bodies.

As shown in fig. 5, the cross bar 22 is preferably curved in an arc shape that is curved away from the nail body 21, so that the cross bar 22 can be slightly elastically deformed under the pressing of the two inner side walls of the nail placing window 11, so that the cross bar 22 is slidably engaged with the two inner side walls of the nail placing window 11. Grooves 23 can be formed on two sides of the end face of the transverse stop lever 22 away from the nail body 21, so that the transverse stop lever 22 can be elastically deformed more conveniently. The distal end of the shank 21 is preferably of a polygonal structure having an edge of 3 or more so as to smoothly penetrate into the vertebral body. The side wall (the side wall far away from the through hole 12) of the nail placing window 11 opposite to the through hole 12 can be penetrated with a spreading nail mounting hole 13 so as to be convenient for penetrating and mounting the spreading nail 2.

The inventor finds that the contact area between the existing cervical vertebra fusion device and the vertebral body is limited, and the fusion area of the bone grafting cavity of the fusion device is smaller, which is not beneficial to fusion. To solve this problem, the present utility model preferably adopts the following structural form:

as shown in fig. 1 and 6, the middle part of the fusion device main body 1 may be provided with a vertical bone grafting cavity 14, the left and right sides of the front part of the fusion device main body 1 are provided with a transverse through hole 15 communicated with the bone grafting cavity 14, a lateral wing 3 is hinged in the transverse through hole 15, the lateral wing 3 comprises a hinged connection part 31 hinged in the transverse through hole 15, one end of the hinged connection part 31 is provided with a wing plate part 32 which can rotate after being driven to extend out of the side surface of the fusion device main body 1, the other end of the hinged connection part is provided with a lateral wing retraction driving part 33, and the outer surfaces of two side walls of the fusion device main body 1 are provided with accommodating grooves 16 for accommodating the wing plate part 32 when the wing plate part 32 does not extend out.

When the fusion device is not implanted, the wing plate parts 32 of the side wings 3 are positioned in the accommodating grooves 16, so that the volume of the fusion device is not increased, and the implantation difficulty is avoided; after the fusion device is implanted to a proper position, the driving wing plate part 32 extends out of the side surface of the fusion device main body 1, at the moment, bone grafting can be performed on the side surface of the fusion device, the bone grafting area is increased, bone fusion is promoted, the lateral length of the fusion device can be increased by the wing plate part 32, the anti-rotation capability of the fusion device is enhanced, and broken bones on the outer side of the fusion device can be prevented from sliding into a rear vertebral canal; when the wing plate 32 is required to be retracted, the wing plate 32 is retracted by driving the wing retraction driving portion 33 by the wing retractor 8.

In addition, compared with the prior art that the moving block is pushed by the screw rod, so that the two side wings are pushed to be unfolded (such as patent CN215130934U, CN215130935U, etc.), the wing plate part 32 can be directly pushed to be unfolded by the side wing spreader 7, the screw rod or the moving block is not needed, the volume of the bone grafting cavity 14 is not occupied, the bone can be fully planted in the bone grafting cavity 14, and the bone fusion effect is good.

Further, the hinge connection portion 31 and the transverse through hole 15 are preferably in interference fit, that is, the height dimension of the hinge connection portion 31 and the height dimension of the transverse through hole 15 are in interference fit, so that in the unfolding process of the wing plate portion 32, the wing plate portion 32 can be stopped and stabilized at any unfolding position, and the operation is convenient. Preferably, the wing portions 32 are unfolded to the maximum unfolded position when parallel to the front and rear surfaces of the cage body 1. The front and rear surfaces of the hinge connection 31 are preferably curved surfaces to facilitate rotation of the hinge connection 31. The side flaps 3 are preferably Z-shaped. The front side wall of the transverse through hole 15 can be provided with an arc avoidance groove 151 for avoiding the side wing retraction driving part 33, so that the side wing retraction driving part 33 is avoided conveniently, and the rotation of the side wing retraction driving part 33 is not interfered.

As shown in fig. 9-12, in order to facilitate driving of the spreader nail 2 to spread, the fusion device system comprises a spreader nail spreader 5, the spreader nail spreader 5 comprises a first sleeve 51, a through hole for the main rod 41 of the fusion device holder 4 to pass through is arranged in the first sleeve 51, and a first U-shaped driving head 52 for inserting the nail placing window 11 to drive the transverse stop rod 22 is arranged at the front end of the first sleeve 51.

In use, the first sleeve 51 of the spreader pin spreader 5 is mounted on the main rod 41 of the fusion device holder 4, so that the two side arms of the first U-shaped driving head 52 are respectively inserted into the pin placing windows 11 (refer to (a) in fig. 12) on two sides of the rear side wall of the fusion device main body 1, the first sleeve 51 is rotated (refer to (b) in fig. 12), and the two side arms of the first U-shaped driving head 52 respectively drive the transverse bars 22 of the two spreader pins 2, so that the tail ends of the pin bodies 21 of the two spreader pins 2 penetrate out of the surface of the fusion device main body 1 through the through holes 12.

As shown in fig. 3-4 and 13-14, to facilitate the retraction of the driving distraction nail 2, one side of the surface of the nail placing window 11 communicating with the through hole 12 may be provided with a groove 18, the groove 18 penetrating the rear side wall surface of the cage body 1, the distance between the axis of the nail body 21 and the rear surface of the rail bar 22 preferably being smaller than the distance between the axis of the nail body 21 and the rear side wall surface of the cage body 1, thereby forming an instrument abutment 19;

the fusion cage system includes a distractor nail extractor 6, the distractor nail extractor 6 includes an operating lever 61, a front end of the operating lever 61 serves as an abutment 62 which cooperates with a rear surface of the lateral bar 22 and a rear sidewall surface of the fusion cage body 1, and a front end side of the operating lever 61 is provided with a projection 63 for inserting the groove 18.

When the spreader nail 2 needs to be retracted, the operator lever 61 is held by hand, the protrusion 63 of the operator lever 61 is inserted into the groove 18, the abutting part 62 of the operator lever 61 abuts against the instrument abutting table 19 to form a contact fulcrum, the operator lever 61 is rotated by the contact fulcrum (clockwise), and the protrusion 63 drives the rail bar 22 of the spreader nail 2 in the retraction direction of the spreader nail 2, so that the spreader nail 2 is retracted, and the fusion device is convenient to take out in operation.

As shown in fig. 13, to facilitate rotation of the operating lever 61, the operating lever 61 may be Z-shaped and include a first straight lever 611 at the front, a second straight lever 612 at the rear, and a diagonal lever 613 connecting the first straight lever 611 and the second straight lever 612, the front end of the first straight lever 611 serving as the abutment portion 62, and the front end side of the first straight lever 611 being provided with the projection 63. The rear end of the second straight rod 612 may be provided with a square connecting post 64 to facilitate connection of the power plant. The rear portion of the second straight rod 612 may be provided with a hand-held anti-slip sleeve 65, and the hand-held anti-slip sleeve 65 may be provided with a plurality of anti-slip ribs extending along the length direction thereof, so as to facilitate the hand-held operation. The hand-held anti-slip sleeve 65 may be metal or silica gel.

As shown in fig. 1 and 15-17, to facilitate the extension/deployment of the drive wing plate portion 32, the outer surfaces of both side walls of the cage body 1 may be provided with outer guide grooves 16, the outer guide grooves 16 serving as receiving grooves;

the fusion cage system comprises a side wing spreader 7, the side wing spreader 7 comprises a second sleeve 71, a through hole for the main rod 41 of the fusion cage holder 4 to pass through is arranged in the second sleeve 71, and a second U-shaped driving head 72 for being inserted into the outer guide groove 16 to drive the wing plate part 32 is arranged at the front end of the second sleeve 71.

In use, the second sleeve 71 of the side wing spreader 7 is mounted on the main rod 41 of the fusion device holder 4, so that the two side arms of the second U-shaped driving head 72 are respectively inserted into the outer guide grooves 16 on the outer surfaces of the two side walls of the fusion device main body 1, and the second sleeve 71 is pushed forward, so that the two side arms of the second U-shaped driving head 72 gradually contact the inner sides of the wing plate parts 32 and push the wing plate parts 32, and the wing plate parts 32 are slowly unfolded/spread.

As shown in fig. 1-4, to facilitate the retraction of the driving wing plate 32, the two inner side walls of the fusion device main body 1 may be provided with inner side guide grooves 10, and the positions corresponding to the inner side guide grooves 10 in the nail placing window 11 are provided with insertion holes 111;

the fusion cage system comprises a side wing retriever 8, the side wing retriever 8 comprises a third sleeve 81, a through hole for a main rod 41 of the fusion cage holder 4 to pass through is arranged in the third sleeve 81, and a third U-shaped driving head 82 for driving the side wing retrieving driving part 33 through inserting a socket 111 into an inner guide groove 10 is arranged at the front end of the third sleeve 81.

In use, the third sleeve 81 of the wing retractor 8 is mounted on the main shaft 41 of the fusion cage holder 4 such that the two side arms of the third U-shaped drive head 82 are respectively inserted into the inner guide channel 10 via the insertion openings 111, the third sleeve 81 is pushed forward such that the two side arms of the third U-shaped drive head 82 gradually contact the wing retraction drive portion 33 and push the wing retraction drive portion 33 to cause the wing plate portion 32 to retract/close slowly.

As shown in fig. 7 and 11, the rear portion of the main rod 41 may be provided with a flat section 44, each sleeve includes a sleeve main body portion and a positioning and mounting portion 100 located at the rear of the sleeve main body portion and used for sleeving the main rod 41 from the flat section 44, the cross section of the sleeve main body portion is semicircular (semi-open structure), and the cross section of the positioning and mounting portion 100 is in an arc shape larger than semicircle, so that after the fusion device is held by the fusion device holding device 4, the fusion device holding device 4 and the fusion device holding device need not to be detached, and various instruments (such as the opening nail opener 5, the side wing opener 7 and the side wing retracting device 8) can be replaced conveniently and the fusion device is used conveniently in operation. In use, the positioning and mounting part 100 of the sleeve is sleeved on the main rod 41 along the flat section 44 of the main rod 41, the sleeve is pushed forward, and the sleeve main body part can be tightly attached to the main rod 41. A drive wrench 9 may be provided on the positioning mounting portion 100 to facilitate driving the sleeve.

As shown in fig. 7, the rear part of the main rod 41 may be provided with a threaded section 45 in front of the flat section 44, and a knob 46 capable of being matched with the threaded section 45 is slidably connected to the main rod 41, so as to precisely drive each sleeve to move forward, thereby better defining the position of each sleeve on the main rod 41.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.

Claims (10)

1. The utility model provides a ware is held to fusion ware, its characterized in that, the ware is held to fusion ware includes the mobile jib, the front end of mobile jib is equipped with the screw rod section with the apparatus connecting hole threaded connection in fusion ware back lateral wall middle part, the diameter of main jib is greater than the diameter of screw rod section, the mobile jib is equipped with the terminal surface of screw rod section is used for supporting to lean on fusion ware back lateral wall surface, the rear end of mobile jib is equipped with the handle.

2. The fusion cage holder of claim 1 wherein the main stem comprises a first stem portion at a front portion and a second stem portion at a rear portion, the second stem portion having a diameter greater than the diameter of the first stem portion, the screw section being located at a front end of the first stem portion, the first stem portion having a diameter greater than the diameter of the screw section, the first stem portion being provided with an end face of the screw section for abutment against a cage rear sidewall surface.

3. A fusion device system, comprising a fusion device and the fusion device holder according to any one of claims 1-2, wherein an instrument connection hole is formed in the middle of the rear side wall of the fusion device, and the instrument connection hole is a threaded hole matched with the screw section.

4. A fusion device system according to claim 3 wherein the fusion device comprises a fusion device body having a rear side wall provided with a stapling window having a stapling pin therein, wherein:

the expanding nail comprises a vertical nail body and transverse stop rods which are perpendicular to the nail body and are in sliding fit with two inner side walls of the nail placing window, and through holes which are communicated with the nail placing window and used for the nail body to penetrate out are formed in the surface of the fusion device main body.

5. The fusion device system according to claim 4, wherein a vertical bone grafting cavity is arranged in the middle of the fusion device main body, a transverse through hole communicated with the bone grafting cavity is arranged on the left side and the right side of the front portion of the fusion device main body, a lateral wing is hinged in the transverse through hole and comprises a hinged connection portion hinged in the transverse through hole, one end of the hinged connection portion is provided with a wing plate portion capable of rotating after driving to extend out of the side face of the fusion device main body, the other end of the hinged connection portion is provided with a lateral wing retraction driving portion, and accommodating grooves for accommodating the wing plate portion when the wing plate portion does not extend out are formed in the outer surfaces of two side walls of the fusion device main body.

6. The fusion device system of claim 4, comprising a spreader pin spreader comprising a first sleeve having a through hole therein for a main rod of the fusion device holder to pass through, a first U-shaped driving head at a front end of the first sleeve for inserting the pin window to drive the transverse bar.

7. The fusion device system according to claim 4 or 6, wherein a groove is provided on one side of a surface of the nail placement window communicating with the through hole, the groove penetrating through a rear sidewall surface of the fusion device body, and a distance between an axis of the nail body and a rear surface of the rail is smaller than a distance between an axis of the nail body and the rear sidewall surface of the fusion device body;

the fusion device system comprises a spreading nail extractor, the spreading nail extractor comprises an operating rod, the front end of the operating rod is used as an abutting part matched with the rear surface of the transverse rod and the rear side wall surface of the fusion device main body, and one side of the front end of the operating rod is provided with a protrusion for being inserted into the groove.

8. The fusion device system according to claim 5, wherein outer guide grooves are provided on outer surfaces of both side walls of the fusion device body, the outer guide grooves serving as the receiving grooves;

the fusion device system comprises a side wing spreader, the side wing spreader comprises a second sleeve, a through hole for a main rod of the fusion device to pass through is formed in the second sleeve, and a second U-shaped driving head used for being inserted into the outer guide groove to drive the wing plate part is arranged at the front end of the second sleeve.

9. The fusion device system according to claim 8, wherein inner guide grooves are formed on two inner side walls of the fusion device main body, and sockets are formed in positions corresponding to the inner guide grooves in the nail placing window;

the fusion device system comprises a side wing retraction device, the side wing retraction device comprises a third sleeve, a through hole for a main rod of the fusion device to pass through is formed in the third sleeve, and a third U-shaped driving head used for being inserted into the inner guide groove through the socket to drive the side wing retraction driving part is arranged at the front end of the third sleeve.

10. The fusion device system according to any one of claims 6, 8 and 9, wherein the rear portion of the main shaft is provided with a flattened section, each sleeve comprises a sleeve body portion and a positioning mounting portion located behind the sleeve body portion for being sleeved on the main shaft from the flattened section, the sleeve body portion has a semicircular cross section, the positioning mounting portion has an arc shape larger than the semicircle, wherein:

a driving wrench is arranged on the positioning and mounting part;

and/or the rear part of the main rod is provided with a threaded section in front of the flat section, and the main rod is connected with a knob which can be matched with the threaded section in a sliding way.

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