CN206508082U

CN206508082U - Lift threaded fusion cage and the operator for driving lifting threaded fusion cage

Info

Publication number: CN206508082U
Application number: CN201621033346.2U
Authority: CN
Inventors: 赵汝琛; 成朝福
Original assignee: Guangzhou Ainuode Medical Devices Co Ltd
Current assignee: Guangzhou Ainuode Medical Devices Co Ltd
Priority date: 2016-08-31
Filing date: 2016-08-31
Publication date: 2017-09-22
Anticipated expiration: 2026-08-31

Abstract

The utility model is related to a kind of operator for lifting threaded fusion cage and threaded fusion cage being lifted for driving, lifting threaded fusion cage includes screw rod, realizing middle limiting frame, upper elevator and lower elevator, at least two first skewed slots and at least two second skewed slots are offered on the two side of realizing middle limiting frame, first skewed slot, the incline direction of second skewed slot is opposite, the side wall of upper elevator is provided with the first latch being slidably matched with first skewed slot, the side wall of lower elevator is provided with the second latch being slidably matched with second skewed slot, screw rod is threadedly coupled with the realizing middle limiting frame, and screw rod is limited on the upper elevator or lower elevator, the upper surface and/or lower surface of the realizing middle limiting frame are provided with through hole.It can realize that threaded fusion cage is highly adjusted, using steady, and threaded fusion cage inner space is larger, the space of bone grafting is big in operation, and bone grafting is more, healing success rate is higher.

Description

Lift threaded fusion cage and the operator for driving lifting threaded fusion cage

Technical field

The utility model is related to medical instruments field, more particularly to a kind of to lift threaded fusion cage and for driving lifting vertebra The operator of body fusion device.

Background technology

In daily life, because the case that the reasons such as tumour, fracture, infection cause centrum to damage happens occasionally, controlling It is one fusion device of implantation between the centrum of damage by the way of at present when treating these patients, bone tissue generation is creeped and replace Generation, so that the centrum of damage is repaired, but traditional threaded fusion cage is highly fixed, and the intervertebral height of human body can be because of people It is different, the different intervertebral heights of different patients can not be adapted to by adjusting the height of threaded fusion cage in operation, so that can not Threaded fusion cage is applicable the intervertebral height of human body completely, have impact on therapeutic effect.The general vertebra with height adjusting function Body fusion device is unstable when using, and inner space is smaller, and the space for easily causing bone grafting in operation is small, influence healing success rate.

The content of the invention

Based on this, it is necessary to which the defect for prior art lifts threaded fusion cage there is provided one kind and lifted for driving The operator of threaded fusion cage, can realize that threaded fusion cage is highly adjusted, using steady, and threaded fusion cage inner space compared with Greatly, the space of bone grafting is big in operation, and bone grafting is more, and healing success rate is higher.

Its technical scheme is as follows：

One kind lifting threaded fusion cage, including screw rod, realizing middle limiting frame, upper elevator and lower elevator, the upper lifting Block is set in the upper outside of realizing middle limiting frame, and the lower elevator is set in the lower outside of realizing middle limiting frame, the centre At least two first skewed slots and at least two second skewed slots, first skewed slot, second are offered on the two side of limitting casing The incline direction of skewed slot on the contrary, the side wall of the upper elevator is provided with the first latch being slidably matched with first skewed slot, The side wall of the lower elevator is provided with the second latch being slidably matched with second skewed slot, the screw rod and the middle limit Position frame is threadedly coupled, and screw rod is limited on the upper elevator or lower elevator, the upper surface of the realizing middle limiting frame And/or lower surface is provided with through hole.

Its further technical scheme is as follows：

Two first skewed slots, two second skewed slots, institute are offered on the two side of the realizing middle limiting frame State and arranged above and below the short transverse of the first skewed slot and the second skewed slot along realizing middle limiting frame, two first skewed slots of the same side, Two second skewed slots are respectively along the direction arranged for interval parallel with the screw rod bearing of trend, and first skewed slot, the Two skewed slots are square shoot, and first latch, the second latch are square pin.

The screw rod includes the thread segment and linkage section that are connected, the linkage section close to the bar segment of thread segment be provided with around The annular groove of its axial line, the thread segment is threadedly coupled with the realizing middle limiting frame, and the lower elevator is close to screw rod End face is provided with the U-shaped through hole with opening, and the U-shaped through hole is matched with the annular groove, and the linkage section passes through the ring Connected in star is rotatably assorted and is limited on the lower elevator with the lower elevator.

The bar segment that the linkage section stretches out the lower elevator is in non-cylindrical, and the U-shaped through hole is set for stacking connection The first U-shaped hole and the second U-shaped hole, first U-shaped hole is located on the outside of the end face of lower elevator, and second U-shaped hole is located at On the inside of the end face of lower elevator, and the width of the first U-shaped hole is less than second U-shaped hole, and the side wall of first U-shaped hole is embedded In the annular groove, second U-shaped hole is matched with the thread segment.

Anti-slop serrations, and upper elevator and lower liter are equipped with the upper surface of the upper elevator, the lower surface of lower elevator Mounting hole is offered on drop block, the mounting hole is connected with the realizing middle limiting frame.

It is in horn-like folder support that the lower elevator is provided with the outside of the end face of screw rod.

It is a kind of be used for drive it is described lifting threaded fusion cage operator, including torsion bar, handle, torsion bar termination, sandwich and Chuck, one end of the torsion bar termination stretch into the handle and can opposite handle rotate, one end of the torsion bar is stretched into described It is connected in handle with the torsion bar termination, the other end of the torsion bar is used to be connected with the screw rod, and the sandwich is set in torsion Outside bar, and one end of sandwich is connected with handle, and the other end of sandwich is in the bell-mouth structure of air matched with the folder support, the chuck It is set in outside sandwich and is threadedly coupled with sandwich, the chuck asks sandwich locking folder towards folder support rotation.

The operator also includes pointer nut, and the pointer nut is arranged in handle, and pointer nut is turned round with described Rod end head thread is connected, and offers the observation window corresponding with pointer nut travel scope on the handle, and on handle with sight Examine window corresponding position and be provided with the scale for being used for showing elevator and lower elevator adjustable height.

The operator also includes closure nut, and the torsion bar termination includes cooperation section, spacing section, the rotation being sequentially connected Section and twist section, the cooperation section are provided with the external screw thread coordinated with the pointer nut, and the cooperation section is away from spacing section End face on dig the groove matched with the torsion bar, the external diameter of the cooperation section, rotational segment and twist section is respectively less than described Spacing section of external diameter, the closure nut is set in that the rotational segment is outer and end face of closure nut is connected to described spacing section One end, closure nut is detachably connected with the handle.

The pointer nut is that the rectangular cavity matched with the square nut is provided with square nut, the handle, described Closure nut includes entering department and the abutting part being connected, and the external diameter of the abutting part is more than the external diameter of the entering department, described Entering department is located in the handle and is connected with handle threads, and the end face that the abutting part is connected with entering department is connected to the hand On the end face of handle, the through hole coordinated with the rotational segment is offered on the closure nut.

The advantage or principle to preceding solution are illustrated below：

Above-mentioned lifting threaded fusion cage, screw rod is limited on the upper elevator or lower elevator, rotates the spiral shell During bar, screw rod pulls the relatively upper elevator of the realizing middle limiting frame or lower elevator to be moved along, and realizing middle limiting frame is moved along While, drive the first latch relatively to be moved along the first skewed slot toward oblique direction, drive the second latch relatively oblique along second Groove is toward obliquely downward to movement, and because the upper elevator is connected with the first latch, lower elevator is connected with the second latch, and first inserts Under being driven while driving upper elevator to be moved toward top movement, and the second latch toward obliquely downward while selling to oblique upper movement Elevator is moved toward lower section, and now the height of the lifting threaded fusion cage has just risen；When the reverse rotation screw rod When, screw rod pulls the realizing middle limiting frame to be moved backward relative to upper elevator or lower elevator, and the first latch is relatively along first Skewed slot is toward obliquely downward to movement, and the second latch is relatively moved along the second skewed slot toward oblique direction, elevator, lower lifting in drive Block is close to each other.The lifting threaded fusion cage height can reduce, highly easy to adjust；And upper elevator, lower liter Drop block in realizing middle limiting with being provided only with the first latch and the second latch, and inner space is larger, and the space of bone grafting is big in operation, bone grafting Can be with more, healing success rate is higher；At least two first skewed slots are provided with simultaneously and at least two first latches coordinate, at least Two the second skewed slots and at least two second latches coordinate, and upper elevator is difficult to rock with lower elevator lifting process, overall knot Structure is more firm, and use is more steady.

The above-mentioned operator for being used to drive the lifting threaded fusion cage, it is outer that its sandwich is enclosed on folder support by bell-mouth structure of air Support is clamped, rotating chuck towards folder support direction makes sandwich locking folder support, and gripping handle rotates torsion bar termination, drives torsion bar rotation, So as to drive screw rod to rotate, the height of lifting threaded fusion cage is realized in the rise and fall of elevator and lower elevator in realization Regulation, it is easy to operate.

Brief description of the drawings

Fig. 1 is the structural representation one that threaded fusion cage is lifted described in the utility model embodiment；

Fig. 2 is the structural representation two that threaded fusion cage is lifted described in the utility model embodiment；

Fig. 3 is the structural representation of realizing middle limiting frame described in the utility model embodiment；

Fig. 4 is the structural representation of upper elevator described in the utility model embodiment；

Fig. 5 is the structural representation of lower elevator described in the utility model embodiment；

Fig. 6 is the structural representation of screw rod described in the utility model embodiment；

Fig. 7 is the structural representation of operator described in the utility model embodiment；

Fig. 8 is the diagrammatic cross-section of the A-A along along Fig. 7；

Fig. 9 is the structural representation of torsion bar termination described in the utility model embodiment；

Figure 10 is the structural representation of sandwich described in the utility model embodiment；

Figure 11 is the structural representation of handle described in the utility model embodiment.

Description of reference numerals：

10th, screw rod, 110, thread segment, 120, linkage section, 122, annular groove, 20, realizing middle limiting frame, 210, first is oblique Groove, the 220, second skewed slot, 40, upper elevator, 410, anti-slop serrations, 420, mounting hole, 50, lower elevator, 510, anti-slop serrations, 520, Mounting hole, 530, U-shaped through hole, the 532, first U-shaped hole, the 534, second U-shaped hole, 540, folder support, the 60, first latch, 70, second inserts Pin, 90, operator, 910, torsion bar, 920, handle, 922, observation window, 930, torsion bar termination, 932, coordinate section, 9322, groove, 934th, spacing section, 936, rotational segment, 938, twist section, 940, sandwich, 950, chuck, 960, pointer nut, 970, closure nut, 972nd, entering department, 974, abutting part.

Embodiment

As shown in Figures 1 to 3, a kind of lifting threaded fusion cage, including screw rod 10, realizing middle limiting frame 20, upper elevator 40 and Lower elevator 50, the upper elevator 40 is set in the upper outside of realizing middle limiting frame 20, during the lower elevator 50 is set in Between limitting casing 20 lower outside, offer on the two side of the realizing middle limiting frame 20 at least two first skewed slots 210 with At least two second skewed slots 220, first skewed slot 210, the incline direction of the second skewed slot 220 are on the contrary, the upper elevator 40 Side wall be provided with the first latch 60 for being slidably matched with first skewed slot 210, the side wall of the lower elevator 50 is provided with The second latch 70 being slidably matched with second skewed slot 220, the screw rod 10 is threadedly coupled with the realizing middle limiting frame 20, and Screw rod 10 is limited on the upper elevator 40 or lower elevator 50, the upper surface of the realizing middle limiting frame 20 and/or under End face is provided with through hole.

The lifting threaded fusion cage, screw rod 10 is limited on the upper elevator 40 or lower elevator 50, rotates institute When stating screw rod 10, screw rod 10 pulls the relatively upper elevator 40 of the realizing middle limiting frame 20 or lower elevator 50 to be moved along, middle While limitting casing 20 is moved along, drive the first latch relatively to be moved along the first skewed slot 210 toward oblique direction, drive second Latch is relatively along the second skewed slot 220 toward obliquely downward to moving, because the upper elevator 40 is connected with the first latch, lower lifting Block 50 is connected with the second latch, and the first latch drives upper elevator 40 to be moved toward top while movement toward oblique upper, and second Latch drives lower elevator 50 to be moved toward lower section while movement toward obliquely downward, the now described height for lifting threaded fusion cage is just Rise and；When reversely rotating the screw rod 10, screw rod 10 pull the relatively upper elevator 40 of the realizing middle limiting frame 20 or Lower elevator 50 is moved backward, and the first latch is relatively along the first skewed slot 210 toward obliquely downward to moving, the second latch relatively edge Second skewed slot 220 is moved toward oblique direction, and elevator 40, lower elevator 50 are close to each other in drive.The lifting vertebral fusion Device height can reduce, highly easy to adjust；And the is provided only with upper elevator 40, lower elevator 50 and realizing middle limiting One latch and the second latch, inner space are larger, and the space of bone grafting is big in operation, and bone grafting can be with more, and healing success rate is higher； It is provided with least two first skewed slots 210 and at least two first latches simultaneously to coordinate, at least two second skewed slots 220 and at least Two the second latches coordinate, and upper elevator 40 is difficult to rock with the lower lifting process of elevator 50, and overall structure is more firm, using more Steadily.The upper surface and/or lower surface of the realizing middle limiting frame 20 are provided with through hole, as shown in figure 3, in the middle of described in the present embodiment The upper surface and lower surface of limitting casing 20 are equipped with through hole, and the both sides end face of realizing middle limiting frame 20 and are also equipped with through hole, this Sample can further increase bone grafting and interpyramidal pathway for fusion, improve fusion success rate, and can mitigate the weight of threaded fusion cage Amount.

As shown in Fig. 1,3,4, two described first are offered described in the present embodiment on the two side of realizing middle limiting frame 20 Skewed slot 210, two second skewed slots 220, height of the skewed slot 220 of the first skewed slot 210 and second along realizing middle limiting frame 20 Arranged above and below direction, two first skewed slots 210 of the same side, two second skewed slots 220 respectively along and the screw rod The parallel direction arranged for interval of 10 bearing of trends, and first skewed slot 210, the second skewed slot 220 are square shoot, the present embodiment In the first skewed slot 210, the second skewed slot 220 use rectangle skewed slot, first latch 60, the second latch 70 be square pin.In i.e. Between a total of four the first skewed slots 210 on limitting casing 20, four the second skewed slots 220, two pieces the first latch 60, two second latches 70, two the first skewed slots 210 per side are located at the top of two the second skewed slots 220, the two ends difference of every first latch 60 In two relative the first skewed slots 210 of the two side of realizing middle limiting frame 20, and every first latch 60 two ends respectively with it is upper The two side of elevator 40 is fixedly connected, and the two ends of every second latch 70 are relative positioned at the two side of realizing middle limiting frame 20 respectively In two the second skewed slots 220, and two side of the two ends respectively with lower elevator 50 of every second latch 70 is fixedly connected, so Two first latches 60 are moved along the first corresponding skewed slot 210 simultaneously, drive the upper elevator 40 being attached thereto rise or Person declines, and two second latches 70 are moved along the second corresponding skewed slot 220 simultaneously, drive the lower elevator 50 being attached thereto Decline or rise, motion is more steady, and first skewed slot 210, the second skewed slot 220 are square shoot, first latch 60th, the second latch 70 is square pin, it is to avoid the first latch 60, the second latch 70 turn in the first skewed slot 210, the second skewed slot 220 It is dynamic, further improve the stability of its motion.According to use demand, it can also be set simultaneously on the two side of the realizing middle limiting frame 20 Three or four first skewed slots 210, the second skewed slot 220 are put, three or four the first latches 60, second are correspondingly arranged Latch 70.

As shown in figures 1 to 6, screw rod 10 described in the present embodiment includes the thread segment 110 and linkage section 120 being connected, the company Connect section 120 close to thread segment 110 bar segment be provided with around its axial line annular groove 122, the thread segment 110 with it is described in Between limitting casing 20 be threadedly coupled, the lower elevator 50 close to screw rod 10 end face be provided with opening U-shaped through hole 530, institute State U-shaped through hole 530 to match with the annular groove 122, the linkage section 120 passes through the annular groove 122 and the lower liter Drop block 50 is rotatably assorted and is limited on the lower elevator 50.The thread segment 110 is stretched into realizing middle limiting frame 20 and it Threaded connection, the linkage section 120 stretches out the lower elevator 50 and is limited in lower elevator 50 by annular groove 122 On, linkage section 120 is rotated by instrument, drives thread segment 110 to rotate, screw rod 10 is limited on lower elevator 50, Elevator 50 is descended not move forward and backward relatively, the realizing middle limiting frame 20 being threadedly coupled with screw rod 10 is moved forward and backward with respect to screw rod 10. In the present embodiment, coordinated by the annular groove 122 of the U-shaped through hole 530 on lower elevator 50 and screw rod 10, screw rod 10 is spacing On lower elevator 50, the opening direction of the U-shaped through hole 530 is towards the upper elevator 40, i.e., described screw rod 10 is logical from U-shaped The opening in hole 530 is caught in U-shaped through hole 530, and the two side of annular groove 122 is located at the both sides of U-shaped through hole 530, limitation respectively The movement of the axial direction of screw rod 10.According to the actual requirements, it would however also be possible to employ other modes are spacing in the lower lifting by screw rod 10 On block 50, the through hole stretched out for screw rod 10 is set such as on lower elevator 50, set respectively not on the screw rod 10 of through hole both sides The backing pin for influenceing screw rod 10 to rotate, limitation screw rod 10 is in axial direction moved.According to use demand, screw rod 10 can also be used Aforesaid way is spacing on upper elevator 40.

As shown in Fig. 1,5,6, the bar segment that the linkage section 120 stretches out the lower elevator 50 is in non-cylindrical, the U-shaped The first U-shaped hole 532 and the second U-shaped hole 534 that through hole 530 is set for stacking connection, first U-shaped hole 532 are located at lower lifting On the outside of the end face of block 50, second U-shaped hole 534 is located on the inside of the end face of lower elevator 50, and the width of the first U-shaped hole 532 Less than second U-shaped hole 534, the side wall of first U-shaped hole 532 is embedded in the annular groove 122, the 2nd U Shape hole 534 is matched with the thread segment 110.The linkage section 120 stretches out the lower elevator 50 by U-shaped through hole 530, and under Elevator 50 is nested by the annular groove 122 of U-shaped through hole 530 and linkage section 120, screw rod 10 is lifted from relatively lower Block 50 is movable but can be rotated relative to lower elevator 50, wherein the first U-shaped hole 532 is used to coordinate with annular groove 122, makes spiral shell Bar 10 is stuck, it is impossible to mobile, and the second U-shaped hole 534 is used to coordinate with thread segment 110, plays and steps down and spacing effect.It is described It is in horn-like folder support 540 that lower elevator 50 is provided with the outside of the end face of screw rod 10, is easy to driving instrument to clamp lower elevator 50, so as to rotate the screw rod 10, make the lower position of elevator 50 not movable with realizing middle limiting block.According to the actual requirements, press from both sides Support 540 is with that can be arranged on elevator 40.The orientation such as upper and lower is determined with respect to fusion device use state.

As shown in Figure 1, 2, 3, the upper surface of the upper elevator 40 is provided with anti-slop serrations 410, the lower end of lower elevator 50 Face on anti-slop serrations 510, and upper elevator 40 provided with mounting hole 420 is offered, and lower elevator 50 is equipped with mounting hole 520, institute State mounting hole to connect with the realizing middle limiting frame 20, form bone grafting fusion passage, be conveniently put into bone-grafting material, the space of bone grafting Greatly.

As illustrated in figures 7-11, a kind of operator 90 for being used to drive the lifting threaded fusion cage, including torsion bar 910, hand Handle 920, torsion bar termination 930, sandwich 940 and chuck 950, one end of the torsion bar termination 930 are stretched into the handle 920 and energy Opposite handle 920 is rotated, and one end of the torsion bar 910 is stretched into be connected in the handle 920 with the torsion bar termination 930, described The other end of torsion bar 910 is connected with the screw rod 10, and the sandwich 940 is set in outside torsion bar 910, and one end of sandwich 940 with Handle 920 is connected, and the other end of sandwich 940 is in the bell-mouth structure of air matched with the folder support 540, and the chuck 950 is set in Sandwich 940 is outer and is threadedly coupled with sandwich 940, and the chuck 950 makes the locking folder support 540 of sandwich 940 towards the folder rotation of support 540.This The one end of torsion bar 910 away from torsion bar termination 930 described in embodiment is provided with and the non-cylindrical bar segment of 10 linkage section of screw rod 120 Slot is matched, the linkage section 120 is inserted in the slot, because linkage section 120 is non-cylindrical, so screw rod 10 and torsion bar 910 relative will not rotate, the bar segment section of linkage section 120 of non-cylindrical can be square, oval, kidney-shaped or other Shape, sandwich 940 is enclosed on outside folder support 540 by bell-mouth structure of air and clamps support 540, and rotating chuck 950 towards folder support 540 direction makes The locking folder support 540 of sandwich 940, gripping handle 920 rotates torsion bar termination 930, drives torsion bar 910 to rotate, so as to drive screw rod 10 Rotate, the rise and fall of elevator 40 and lower elevator 50, easy to operate in realization, in the rotation process of screw rod 10, centre limit Position frame 20 is moved forward and backward, and lower elevator 50 is spacing by chuck and sandwich, will not move forward and backward.

As shown in Fig. 7,8,11, the operator 90 also includes pointer nut 960, and the pointer nut 960 is arranged on hand In handle 920, and pointer nut 960 is threadedly coupled with the torsion bar termination 930, is offered on the handle 920 and pointer nut The corresponding observation window 922 of 960 stroke ranges, and be provided with handle 920 with the corresponding position of observation window 922 for showing upper elevator 40 and the scale of the adjustable height of lower elevator 50.The outer surface of torsion bar termination 930 is outer provided with what is matched with the internal thread of pointer nut 960 The position of opposite handle 920 is constant in screw thread, the rotary course of torsion bar termination 930, and pointer nut 960 is with the rotation of torsion bar termination 930 Turn to move in handle 920 along torsion bar termination 930, pointer nut can clearly be observed by the observation window 922 on handle 920 The position of 960 movements, so that the scale of the upper elevator 40 of correspondence display and the adjustable height of lower elevator 50, knows clearly lifting The specific height of threaded fusion cage lifting.Pointer nut described in the present embodiment is square nut, be provided with the handle 920 with it is described The rectangular cavity of square nut matching, pointer nut is limited in rectangular cavity, not rotated, root with the rotation of torsion bar termination 930 According to actual demand, pointer nut 960 can also be provided with matching in triangle or other shapes, correspondence handle 920 Triangular chamber etc..

As shown in Fig. 7,8,9, the operator 90 also includes closure nut 970, and the torsion bar termination 930 includes connecting successively Cooperation section 932, spacing section 934, rotational segment 936 and the twist section 938 connect, the cooperation section 932 is provided with and the pointer spiral shell The external screw threads that mother 960 coordinates, and the cooperation section 932 matches with the torsion bar 910 away from having been dug on spacing section 934 of end face Groove 9322, described spacing section 934 of external diameter is more than the external diameter of the cooperation section 932, rotational segment 936 and twist section 938, institute State closure nut 970 and be set in that the rotational segment 936 is outer and end face of closure nut 970 is connected to described spacing section 934 1 End, closure nut 970 is detachably connected with the handle 920.During assembling, first by the cooperation of torsion bar termination 930 section 932 and spacing Section 934 load handles 920 in, then by twist section 938 pass through closure nut 970, closure nut 970 be moved to rotational segment 936 and Spacing section 934 of end face is propped up, the rotation of closure nut 970 is threadedly coupled with handle 920, so that it is spacing in handle to reverse termination On 920, it is to avoid reverse termination and skid off.Torsion bar 910 is nested with the one end for coordinating section 932 to be connected with the groove 9322, turns round Bar 910 does not relatively rotate with torsion bar termination 930, and the torsion bar 910 can be in waist with coordinating the end section that section 932 is connected Shape, the groove 9322 is also in kidney-shaped or square or other shapes.The section of twist section 938 is hexagonal, is easy to Spanner is clamped twist section 938 and rotated, according to the actual requirements, and the section of twist section 938 can also be other shapes, such as kidney-shaped Or square etc..

As shown in figure 8, the closure nut 970 includes entering department 972 and the abutting part 974 being connected, the abutting part 974 external diameter is more than the external diameter of the entering department 972, the entering department 972 be located in the handle 920 and with the spiral shell of handle 920 Line is connected, and the abutting part 974 is connected to the end face that entering department 972 is connected on the end face of the handle 920, the end socket spiral shell The through hole coordinated with the rotational segment 936 is offered on mother 970.The closure nut 970 can relative torsion bar by the through hole Termination 930 is rotated, and the outer surface of entering department 972 is provided with the external screw thread matched with the internal thread of handle 920, and the abutting part 974 is located at Outside handle 920, it is easily installed and dismantles.

Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, the scope of this specification record is all considered to be.

Embodiment described above only expresses several embodiments of the present utility model, and it describes more specific and detailed, But therefore it can not be interpreted as the limitation to the utility model the scope of the claims.It should be pointed out that for the common of this area For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims

1. one kind lifting threaded fusion cage, it is characterised in that including screw rod, realizing middle limiting frame, upper elevator and lower elevator, institute The upper outside that elevator is set in realizing middle limiting frame is stated, the lower elevator is set in the lower outside of realizing middle limiting frame, At least two first skewed slots and at least two second skewed slots are offered on the two side of the realizing middle limiting frame, described first is oblique Groove, the incline direction of the second skewed slot are on the contrary, the side wall of the upper elevator is provided be slidably matched with first skewed slot the One latch, the side wall of the lower elevator is provided with the second latch being slidably matched with second skewed slot, the screw rod and institute The threaded connection of realizing middle limiting frame is stated, and screw rod is limited on the upper elevator or lower elevator, the realizing middle limiting frame Upper surface and/or lower surface be provided with through hole.

2. threaded fusion cage is lifted as claimed in claim 1, it is characterised in that opened on the two side of the realizing middle limiting frame Provided with two first skewed slots, two second skewed slots, the height of first skewed slot and the second skewed slot along realizing middle limiting frame Spend above and below direction and arrange, two first skewed slots, two second skewed slots of the same side extend along with the screw rod respectively The parallel direction arranged for interval in direction, and first skewed slot, the second skewed slot are square shoot, first latch, second insert Sell for square pin.

3. lifting threaded fusion cage as claimed in claim 1, it is characterised in that the screw rod include the thread segment that is connected and Linkage section, the linkage section close to thread segment bar segment be provided with around its axial line annular groove, the thread segment with it is described Realizing middle limiting frame is threadedly coupled, and the lower elevator is provided with the U-shaped through hole with opening close to the end face of screw rod, and the U-shaped leads to Hole is matched with the annular groove, and the linkage section is rotatably assorted and is limited with the lower elevator by the annular groove On the lower elevator.

4. threaded fusion cage is lifted as claimed in claim 3, it is characterised in that the linkage section stretches out the lower elevator Bar segment is in non-cylindrical, the first U-shaped hole and the second U-shaped hole, first U-shaped hole that the U-shaped through hole is set for stacking connection On the outside of the end face of lower elevator, second U-shaped hole is located on the inside of the end face of lower elevator, and the width of the first U-shaped hole Less than second U-shaped hole, the side wall of first U-shaped hole is embedded in the annular groove, second U-shaped hole with it is described Thread segment is matched.

5. threaded fusion cage is lifted as claimed in claim 1, it is characterised in that the upper surface of the upper elevator, lower lifting It is equipped with the lower surface of block on anti-slop serrations, and upper elevator and lower elevator and offers mounting hole, the mounting hole and institute State the connection of realizing middle limiting frame.

6. the lifting threaded fusion cage as described in claim any one of 1-5, it is characterised in that the lower elevator is close to screw rod End face on the outside of be provided be in horn-like folder support.

7. a kind of operator for being used to drive lifting threaded fusion cage as claimed in claim 6, it is characterised in that the operation Device includes torsion bar, handle, torsion bar termination, sandwich and chuck, and one end of the torsion bar termination is stretched into the handle and energy is relative Handle is rotated, and one end of the torsion bar is stretched into be connected in the handle with the torsion bar termination, and the other end of the torsion bar is used for It is connected with the screw rod, the sandwich is set in outside torsion bar, and one end of sandwich is connected with handle, the other end of sandwich is in and institute The bell-mouth structure of air that folder holds in the palm matching is stated, the chuck is set in outside sandwich and is threadedly coupled with sandwich, the chuck revolves towards folder support Turn to make sandwich locking folder support.

8. operator as claimed in claim 7, it is characterised in that the operator also includes pointer nut, the pointer spiral shell Mother is arranged in handle, and pointer nut is connected with the torsion bar ends screw, is offered on the handle and pointer nut row The corresponding observation window of journey scope, and be provided with handle with observation window corresponding position for showing that upper elevator and lower elevator are lifted The scale of height.

9. operator as claimed in claim 8, it is characterised in that the operator also includes closure nut, the torsion bar end Head includes cooperation section, spacing section, rotational segment and the twist section being sequentially connected, and the cooperation section with the pointer nut provided with matching somebody with somebody The external screw thread of conjunction, and described coordinate section away from digging the groove that is matched with the torsion bar, the cooperation on spacing section of end face The external diameter of section, rotational segment and twist section is respectively less than described spacing section of external diameter, and the closure nut is set in outside the rotational segment And the end face of closure nut is connected to described spacing section of one end, closure nut is detachably connected with the handle.

10. operator as claimed in claim 9, it is characterised in that the pointer nut is to be set in square nut, the handle There is the rectangular cavity matched with the square nut, the closure nut includes entering department and the abutting part being connected, the abutting The external diameter in portion is more than the external diameter of the entering department, and the entering department is located in the handle and is connected with handle threads, described to support The end face that socket part is connected with entering department is connected on the end face of the handle, is offered on the closure nut and the rotational segment The through hole of cooperation.