CN214382425U

CN214382425U - Titanium net imbedding assembly, support wing, parallel spreader and titanium net holder

Info

Publication number: CN214382425U
Application number: CN202021866540.5U
Authority: CN
Inventors: 魏鑫泽
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-10-12
Anticipated expiration: 2030-08-31

Abstract

The utility model discloses a titanium net imbedding component, a support wing, a parallel spreader and a titanium net holder, wherein the titanium net imbedding component comprises a support wing, a parallel spreader and a titanium net holder, the support wing comprises a front section plate, a middle section plate and a rear section plate which are connected into a whole, a titanium net placing opening is arranged at the top of the front section plate, an included angle between the central axis of the front section plate and the central axis of the middle section plate is an obtuse angle, a fixed hole connected with the parallel spreader is arranged on the rear end plate, a group of support wing convex edges which are oppositely arranged form a titanium net moving track, the parallel spreader comprises a pair of fixed supporting rods and movable supporting rods which are arranged in parallel, connecting parts are respectively connected with the support wing to play a role of stabilizing the parallel spreader, the bent clamping head of the titanium net holder can ensure that the titanium net turns in a small range, the design is reasonable, the flow of spinal column reconstruction operation can be simplified, and the operation precision is improved, the operation difficulty is reduced, and the operation time is shortened.

Description

Titanium net imbedding assembly, support wing, parallel spreader and titanium net holder

Technical Field

The utility model belongs to the technical field of medical instrument, a supplementary apparatus of operation is related to, concretely relates to titanium net puts into subassembly, prop up wing, parallel distraction ware and titanium net holder.

Background

At present, spinal tumors seriously affect the neurological function, life treatment and life cycle of a patient, particularly malignant tumors, complete excision of tumor lesions as much as possible is the key for improving the prognosis effect of the patient, and spinal reconstruction is usually performed by adopting a titanium mesh implantation and nail rod fixation method after the tumor lesions are excised.

The common method for spinal column reconstruction at present is to measure the distance between adjacent vertebral bodies under the non-distraction state of the spinal column, trim the titanium mesh with corresponding size, put the titanium mesh between the vertebral bodies in an inclined way, and then correct and erect the titanium mesh between the vertebral bodies. The conventional method has the following problems:

1. because the measurement is carried out under the non-distraction state of the spine, the end plate of the vertebral body is in a dome shape, uneven and irregular, the measurement accuracy is difficult to ensure, the measurement is often carried out according to the dome position of the adjacent vertebral body as a reference, the trimmed titanium mesh is easy to be overlong, the difficulty of titanium mesh placement is increased, sometimes, forced placement can cause complications such as end plate fracture, titanium mesh embedding into cancellous bone, long-term titanium mesh sinking and the like, and the risk of injury of spinal cords, dura mater spinalis and nerve roots can also be increased;

2. if the measured distance data is too small, the length of the trimmed titanium mesh is too short, and the trimmed titanium mesh is easily placed between the vertebral bodies, but the titanium mesh cannot be used for supporting the upper vertebral body and the lower vertebral body, the upper vertebral body and the lower vertebral body are required to be closed and pressurized to realize the stability of the titanium mesh, and the folds of the dura mater or the spinal cord are easily caused;

3. in the operation, some students also spread adjacent pedicle screws on the same side to facilitate the insertion of the titanium mesh, but the spread of the unilateral screws often causes the inclination of the vertebral body end plate, resulting in poor contact between the titanium mesh and the vertebral body end plate.

These problems lead to the problems of complicated steps, difficult operation precision, long time and high operation risk in the spine reconstruction titanium mesh implantation operation, and a new operation auxiliary instrument is needed at present to solve the problems.

Disclosure of Invention

Not enough to prior art exists, the utility model aims to provide a subassembly, prop up wing, parallel distraction ware and titanium net holder are put into to the titanium net, can solve current backbone and rebuild the step complicacy in the operation, the operation precision degree of difficulty is big, and the time is long, the technical problem that the operation risk is big.

In order to solve the technical problem, the utility model discloses a following technical scheme realizes:

a titanium mesh imbedding assembly comprises a parallel distractor, and also comprises an upper supporting wing and a lower supporting wing which are detachably arranged on the parallel distractor;

the upper supporting wing and the lower supporting wing are oppositely symmetrical;

the upper supporting wing comprises a front section plate, a middle section plate and a tail section plate which are integrally connected, the top of the front section plate is provided with a titanium mesh placing opening with an open end, an included angle is formed between the central axis of the front section plate and the central axis of the middle section plate, and the tail section plate is provided with a fixing hole;

the upper and lower top surfaces of the upper clamping groove of the parallel distractor are provided with upper through holes penetrating through the upper clamping groove, and the upper supporting wing is arranged on the upper connecting part through the matching of the upper through holes and the fixing holes;

the upper and lower top surfaces of the lower clamping groove of the parallel distractor are provided with a lower through hole penetrating through the lower clamping groove, and the lower support wing is arranged on the lower connecting part through the matching of the lower through hole and the fixing hole.

The utility model discloses still have following technical characteristic:

an included angle between the central axis of the front section plate and the central axis of the middle section plate is an obtuse angle, and the width of the front section plate is equal to that of the middle section plate; the width of end section board for 2/3 of middle section board width, the inboard side of end section board and the inboard side parallel and level of middle section board.

The parallel distractor comprises a parallel distractor main body, the parallel distractor main body comprises a pair of fixed support rods and a pair of movable support rods which are arranged in parallel, and the distal end parts of the fixed support rods are provided with upper connecting parts for connecting upper support wings; the vertical section of the upper connecting part is horizontally provided with an upper clamping groove matched with the end plate of the upper supporting wing, the upper top surface and the lower top surface of the upper clamping groove are provided with upper through holes penetrating through the upper clamping groove, and the upper supporting wing is arranged on the upper connecting part through the matching of the upper through holes and the fixing holes;

the lower connecting part is connected with the lower supporting wing, a lower clamping groove matched with the tail end plate of the lower supporting wing is horizontally formed in the vertical section of the lower connecting part, lower through holes penetrating through the lower clamping groove are formed in the upper top surface and the lower top surface of the lower clamping groove, and the lower supporting wing is installed on the lower connecting part through the matching of the lower through holes and the fixing holes.

The titanium mesh imbedding assembly further comprises a titanium mesh holder, the titanium mesh holder comprises two holding arms which are hinged with each other, the upper ends of the holding arms are respectively provided with a bent holding head, the inner side surface of the top of the bent holding head is provided with a conical hand grip, the positions of the conical hand grips on the two bent holding heads correspond to each other, the lower ends of the holding arms are provided with holding finger sleeves, and inverted tooth hooks which can be mutually fastened and matched are arranged on the two holding arms close to the inner sides of the holding finger sleeves;

the bending radian of the bent clamping head is the same as that of the inner arc at the joint of the front section plate and the middle section plate.

The titanium net mounting port is U-shaped.

The inner side edge and the outer side edge of the lower surface of the front section plate and the middle section plate of the upper supporting wing are both provided with a convex edge, the convex edge of the front section plate extends to two ends of the titanium mesh placing port, and the length of the convex edge at the outer side of the middle section plate is greater than that of the convex edge at the inner side;

the inner side and the outer side of the upper surface of the front section plate and the middle section plate of the lower support wing are respectively provided with a protruding edge, the protruding edges of the front section plate extend to two ends of the titanium mesh placement port, and the length of the protruding edge on the outer side of the middle section plate is larger than that of the protruding edge on the inner side.

The utility model also discloses a parallel spreader, which comprises a parallel spreader main body, wherein the parallel spreader main body comprises a pair of fixed supporting rods and movable supporting rods which are arranged in parallel, and the distal end parts of the fixed supporting rods are provided with upper connecting parts for connecting upper supporting wings; the vertical section of the upper connecting part is horizontally provided with an upper clamping groove matched with the end section plate, the upper top surface and the lower top surface of the upper clamping groove are provided with upper through holes penetrating through the upper clamping groove, and the upper supporting wing is arranged on the upper connecting part through the matching of the upper through holes and the fixing holes;

the lower connecting part is connected with the lower supporting wing, a lower clamping groove matched with the tail section plate is horizontally formed in the vertical section of the lower connecting part, a lower through hole penetrating through the lower clamping groove is formed in the upper top surface and the lower top surface of the lower clamping groove, and the lower supporting wing is installed on the lower connecting part through the matching of the lower through hole and the fixing hole.

The parallel spreader main body also comprises a toothed sliding rod and a one-way locking buckle movably sleeved on the toothed sliding rod, and the top end of the toothed sliding rod is fixedly connected with the near end part of the fixed support rod; the proximal end portion of the movable support rod is provided with a square trepanning matched with the toothed slide rod, the lower edge of the square trepanning is fixedly connected with the upper end of the one-way locking buckle, and the square trepanning and the one-way locking buckle are sleeved on the toothed slide rod.

The utility model also protects a support wing, which comprises a front section plate, a middle section plate and a tail section plate which are connected into a whole, wherein the top of the front section plate is provided with a titanium net placing port with an open end, an included angle between the central axis of the front section plate and the central axis of the middle section plate is an obtuse angle, and the width of the front section plate is equal to that of the middle section plate; the width of end section board for 2/3 of middle section board width, the inboard side of end section board and the inboard side parallel and level of middle section board, the end section board on seted up the fixed orifices.

The utility model also discloses a titanium mesh holder, including two mutually articulated gripping arms, the upper end of gripping arm be equipped with curved clamping head respectively, the medial surface at curved clamping head top on be provided with the toper tongs, the toper tongs position on two curved clamping heads on corresponding, the lower extreme of gripping arm be equipped with the gripping dactylotheca, two gripping arms be close to the inboard of gripping dactylotheca, be provided with the pawl couple that can buckle mutually and cooperate;

Compared with the prior art, the utility model, following technological effect has:

(I) the utility model discloses a support wing of design, in the operation is rebuild to the backbone, improve the precision that the position was placed to the titanium net, the setting at inboard protruding border, constitute titanium net removal track, the steady movement of titanium net has been ensured, the anterior segment board of support wing and the contained angle setting between the middle section board, both guaranteed that the anterior segment board can parallel placement on the centrum end plate, the external middle section board is stretched out to the slant, but also furthest's reduction is to the damage of muscle tissue around the centrum, other operations in the centrum reconstruction art also can reduce as far as and place the influence of stability to the anterior segment board.

(II) the utility model discloses a parallel struts ware of design, the distance between fixed vaulting pole of adjustment and the activity vaulting pole that can be stable is detained with one-way locking through the toothed slide bar that sets up and can be reached quick locking, one according to the effect of unblock.

(III) the utility model discloses a titanium net holder of design, the centre gripping titanium net that can rapid and stable to under the effect of pawl couple, play the effect that firmly grips the titanium net.

(IV) the utility model discloses a subassembly is put into to titanium net has used holding wing, parallel distraction ware and titanium net holder jointly, can stably strut the centrum about the centrum segment section that needs to be changed, and the quick position that needs to be placed with putting into of titanium net steady simplifies the flow that the operation was rebuild to the backbone, improves the operating accuracy, reduces the operation degree of difficulty, reduces the operation risk, shortens operating time, reduces the production of the uncomfortable disease of postoperative.

Drawings

Fig. 1 is a schematic view of the structure of the support wing of the present invention.

Fig. 2 is a schematic view of the placement position of the support wing of the present invention.

Fig. 3 is a schematic structural diagram of the parallel distractor of the present invention.

Fig. 4 is a schematic structural diagram of a parallel distractor of the present invention.

Fig. 5 is an enlarged schematic view of the upper connection portion of the present invention.

Fig. 6 is a schematic structural view of the titanium mesh holder of the present invention.

Fig. 7 is a using state diagram of the titanium mesh holder of the present invention.

Fig. 8 is a schematic view of the installation of the parallel spreader and the support wing of the present invention.

Fig. 9 is a reference view of the use state of the parallel distractor and the support wings of the present invention.

FIG. 10 is a reference view of the titanium mesh implanting assembly of the present invention in use

The meaning of the individual reference symbols in the figures is:

1-parallel spreader, 2-upper supporting wing, 21-front section plate, 22-middle section plate, 23-end section plate, 24-titanium mesh placement port, 25-fixing hole, 26-convex edge, 3-lower supporting wing, 4-titanium mesh holder, 41-holding arm, 42-bent clamping head, 43-conical gripper, 44-holding finger stall, 45-inverted tooth hook, 5-fixing supporting rod, 51-upper connecting part, 52-upper clamping groove, 53-upper through hole, 6-movable supporting rod, 61-lower connecting part, 62-lower clamping groove, 63-lower through hole, 7-toothed sliding rod, 8-one-way locking buckle, 81-unlocking sliding button, 82-sliding opening knob, 9-square sleeve hole, 10-fixing screw, 11-titanium mesh, 12-titanium mesh.

The following examples are provided to explain the present invention in further detail.

Detailed Description

Obey above-mentioned technical scheme, following the present utility model discloses a specific embodiment, it needs to explain that the utility model discloses do not confine following specific embodiment to, all fall into the protection scope of the utility model to the equivalent transform of doing on the basis of this application technical scheme.

Example 1:

the present embodiment provides a support wing, as shown in fig. 1 to 2, including a front section plate 21, a middle section plate 22 and a rear section plate 23 which are integrally connected, a titanium mesh mounting port 24 with an open end is provided at the top of the front section plate 21, an included angle between a central axis of the front section plate 21 and a central axis of the middle section plate 22 is an obtuse angle, and the width of the front section plate 21 is equal to the width of the middle section plate 22; the width of the end plate 23 is 2/3 of the width of the middle plate 22, the inner side edge of the end plate 23 is flush with the inner side edge of the middle plate 22, and the end plate 23 is provided with a fixing hole 25.

The thickness of the support wing is 1-3 mm, preferably 2 mm.

The included angle between the central axis of the front section plate 21 and the central axis of the middle section plate 22 is 100-140 degrees, preferably 120 degrees, the smooth transition of the joint of the front section plate 21 and the middle section plate 22 is realized, the opening space of the wound in the operation is limited, the included angle is arranged between the front section plate 21 and the middle section plate 22, the front section plate 21 can be arranged on the vertebral end plate in parallel, the middle section plate 22 outside the vertebral body is obliquely stretched out, the damage to the muscle tissue around the vertebral body 12 can be reduced to the maximum extent, and the influence on the stability of the front section plate 21 in the vertebral body reconstruction operation can be reduced as much as possible through other operations.

The titanium mesh placement port 24 is U-shaped, and the size of the titanium mesh placement port is set according to the sizes of the anteroposterior diameter and the transverse diameter of a vertebral body end plate as follows: the length is 2-2.5 cm, the width is 2.2-2.5 cm, the width of the titanium mesh placement opening 24 is smaller than the width of the anterior segment plate 21, the size difference is 4mm, the width of the anterior segment plate 21 is smaller than the radial width of a vertebral end plate, the size difference is 6mm, and the size of the width of the anterior segment plate 21 is set, so that the risk of damaging spinal cords and nerves in a vertebral canal due to the fact that the width of the anterior segment plate 21 is too wide is reduced, and support wings with corresponding sizes are selected according to different vertebral body sections; the titanium net arrangement port 24 is arranged, in the operation, a support wing is arranged on the surface of a vertebral body end plate, the position of the titanium net arrangement port 24 is adjusted, the center of the titanium net arrangement port 24 is close to the central area of the vertebral body, when the titanium net 11 falls into the titanium net arrangement port 24 through the operation, the central area of the vertebral body can be accurately reached, namely, the preset position where people plan to place is determined, and the edge of the titanium net arrangement port 24 has a certain wrapping effect on the titanium net 11, so that the effect of stably arranging the titanium net 11 can be achieved.

The length of the front section plate 21 of the support wing is 3-4 cm, the length of the middle section plate 22 is 4-5 cm, the length of the tail section plate 23 is 1.5-2 cm, and the width is 1.7-2 cm.

The inside and outside both sides edge on a surface of the anterior segment board 21 of support wing and middle section board 22 all is provided with protruding border 26, protruding border 26 of anterior segment board 21 extends to the both ends that the mouth 24 was settled to the titanium net, the length of the protruding border 26 in the middle section board 22 outside is greater than the length of the protruding border 26 of inboard, the direction of buckling of here anterior segment board is the inboard of support wing, the height of protruding border 26 is 1 ~ 2mm, preferably 1.5mm, the protruding border 26 in the middle section board 22 outside is at least the diameter width that is a titanium net with the length difference of the protruding border 26 of inboard, anterior segment board 21 has constituted the removal track of titanium net 11 with the protruding border 26 that the middle section board 22 both sides set up, it enters into in the mouth 24 to have guaranteed that titanium net 11 can be steady removal.

Example 2:

the present embodiment provides a parallel distractor 1, as shown in fig. 3 to 5, comprising a parallel distractor body including a pair of fixed struts 5 and movable struts 6 arranged in parallel, the distal end portions of the fixed struts 5 being provided with upper connecting portions 51 for connecting upper support wings 2; an upper clamping groove 52 matched with the end section plate 23 is horizontally formed in the vertical section of the upper connecting part 51, an upper through hole 53 penetrating through the clamping groove is formed in the upper top surface and the lower top surface of the upper clamping groove 52, and the upper supporting wing is installed on the upper connecting part 51 through the matching of the upper through hole 53 and the fixing hole 25;

the distal end portion of activity vaulting pole 6 is provided with the lower connecting portion 61 of connecting lower prop wing 3, and lower connecting portion 61 vertical section level is seted up with end plate 23 assorted lower draw-in groove 62, and the lower through-hole 63 that runs through the draw-in groove is seted up to the top surface about lower draw-in groove 62, and the cooperation through lower through-hole 63 and fixed orifices 25 is installed lower prop wing 3 on lower connecting portion 61, goes up the size setting of draw-in groove 52 and lower draw-in groove 62: the width is 1.7-2 cm, the height is 1-3 mm, and the depth is 1.5-2 cm.

As a preferable scheme of this embodiment, in this embodiment, the parallel distractor main body further includes a toothed sliding rod 7 and a one-way locking buckle 8 movably sleeved on the toothed sliding rod 7, and a top end of the toothed sliding rod 7 is fixedly connected with a proximal end portion of the fixed stay bar 5; the proximal end portion of the movable support rod 6 is provided with a square trepanning 9 matched with the toothed slide rod 7, the lower edge of the square trepanning 9 is fixedly connected with the upper end of the one-way locking buckle 8, and the square trepanning 9 and the one-way locking buckle 8 are sleeved on the toothed slide rod 7. The arrangement of the square sleeve hole 9 and the one-way locking buckle 8 can conveniently adjust the parallel distance between the fixed stay bar 5 and the movable stay bar 6, and can be quickly locked when the parallel distance between the fixed stay bar 5 and the movable stay bar 6 needs to be kept.

The one-way locking button 8 is provided with an unlocking sliding button 81 and a sliding opening knob 82, the sliding opening knob 82 can only drive the movable stay bar 6 and the one-way locking button 8 to move downwards along the toothed slide bar 7, when the locking device is used, the sliding opening knob 82 is rotated to adjust the movable stay bar 6 to a proper position, the one-way locking teeth arranged on the unlocking sliding button 81 can ensure that the movable stay bar 6 and the one-way locking button 8 are locked at fixed positions and cannot move, after the use is finished, the unlocking sliding button 81 is pressed to unlock, and at the moment, the movable stay bar 6 and the one-way locking button 8 can freely move along the toothed slide bar 7.

The length of the fixed stay bar 5 and the movable stay bar 6 is 5-6 cm, and the length of the auxiliary instrument is not too long due to the limited operation space of the spine reconstruction operation, so that the use and the operation are convenient.

Example 3:

this embodiment provides a titanium net holder 4, as shown in fig. 6 to 7, including two mutual articulated arms 41 of holding, the upper end of holding arm 41 is equipped with bent type holding head 42 respectively, 4 horizontal migration angles of titanium net holder can be enlarged in the setting of bent type holding head 42, be provided with toper tongs 43 on the medial surface at bent type holding head 42 top, toper tongs 43 on two bent type holding heads 42 correspond in position, can fast and stably hold titanium net 11, the lower extreme of holding arm is equipped with the finger stall 44 of holding, two holding arms are close to the inboard of finger stall 44 of holding, be provided with pawl couple 45 that can buckle the complex each other, play the effect of firmly holding titanium net 11.

Example 4:

this embodiment shows a titanium mesh insertion assembly, as shown in fig. 8 to 10, comprising a parallel distractor 1, an upper support wing 2, a lower support wing 3 and a titanium mesh holder 4. The parallel distractor 1 used in example 2 was the parallel distractor 1, the upper support wing 2 and the lower support wing 3 used in example 1 were the support wings, and the titanium mesh holder 4 used in example 3 was the titanium mesh holder 4.

The upper supporting wing 2 and the lower supporting wing 3 are symmetrical in structure in opposite directions, and when the upper supporting wing 2 and the lower supporting wing 3 are used, the convex edges 26 on the surfaces of the upper supporting wing 2 and the lower supporting wing 3 are arranged in opposite directions.

The titanium mesh imbedding component of the embodiment is actually operated:

firstly, according to the vertebral body segment to be reconstructed, an upper supporting wing 2, a lower supporting wing 3 and a parallel distractor 1 matched with the supporting wing tail section plate 23 in size are selected, and a titanium net 11 with a proper length is cut.

Secondly, the upper supporting wing 2 with the protruding edge 26 faces downwards, the end plate 23 is inserted into the upper clamping groove 52 at the distal end of the fixed supporting rod 5, the fixing hole 25 on the upper supporting wing 2 corresponds to the upper through hole 53 penetrating through the upper clamping groove 52, and the upper supporting wing 2 is fixedly connected with the fixed supporting rod 5 by the fixing screw 10. And then the lower supporting wing 3 with the raised edge 26 faces upwards, the end plate 23 is inserted into the lower clamping groove 62 at the far end part of the movable stay bar 6, the fixing hole 25 on the lower supporting wing 3 is corresponding to the lower through hole 63 penetrating through the lower clamping groove 62, and the lower supporting wing 3 is fixedly connected with the movable stay bar 6 by the fixing screw 10. At this time, the protruding edges 26 of the upper supporting wing 2 and the lower supporting wing 3 construct a channel for the titanium mesh 11 to move, the length of the protruding edge 26 of the outer side of the upper supporting wing 2 and the lower supporting wing 3 is greater than that of the protruding edge 26 of the inner side, an entrance for the titanium mesh 11 to enter the channel is formed, the sliding expansion knob 82 is rotated to increase the parallel distance between the fixed stay bar 5 and the movable stay bar 6 until the upper vertebral body end plate and the lower vertebral body end plate are supported.

Thirdly, holding the parallel distractor 1, leading the upper supporting wing 2 and the lower supporting wing 3 to pass through the wound, avoiding the vertebral canal, placing between two adjacent vertebral bodies 12 of the vertebral body segment to be reconstructed, leading the upper supporting wing 2 to be tightly attached to the lower end plate of the upper vertebral body 12, leading the lower supporting wing 3 to be tightly attached to the upper end plate of the lower vertebral body 12, leading the center of the titanium net placing port 24 to be positioned in the central area of the upper and lower end plates of the vertebral bodies, reserving the distance of 2-3mm between the front and rear edges of the front section plate 21 of the supporting wing and the front and rear edges of the end plate of the vertebral body respectively, avoiding the damage to the blood vessel in front of the vertebral body 12 and the spinal cord in the rear vertebral canal, leading the movable supporting rod 6 to drive the lower supporting wing 3 to move downwards along the toothed sliding rod 7 by rotating and sliding the supporting knob 82 after the position of the supporting wings is adjusted, at the moment, leading the upper supporting wing 2 fixedly connected on the fixed supporting rod 5 and the lower supporting wing 3 fixedly connected on the movable supporting rod 6 to be contacted with the upper and lower end plates, the adjacent vertebral bodies 12 are slowly propped open, when the propping distance reaches a proper position, the movable propping knob 82 stops rotating, the one-way locking teeth arranged on the unlocking sliding key 81 lock the movable propping rod 6, and the propping state of the upper supporting wing 2 and the lower supporting wing 3 is kept.

Fourthly, fingers are put into the holding finger sleeves 44 of the titanium mesh holder 4, the holding arm 41 is opened, the end parts of the bent clamping heads 42 arranged at the upper end of the holding arm 41 are deep into two holes close to the titanium mesh 11, the supporting arms are tightened at the moment, the conical grippers 43 arranged on the two bent clamping heads 42 oppositely exert force, and the inverted tooth hooks 45 are fastened with each other to firmly clamp the titanium mesh 11. The titanium net holder 4 is held by hand to hold the titanium net 11, so that the titanium net 11 vertically enters a channel constructed by the convex edges 26 of the upper supporting wings 2 and the lower supporting wings 3 through the inlets at the outer sides of the upper supporting wings 2 and the lower supporting wings 3 and slides towards the direction of the centrum 12 along the channel, because the clamping head of the titanium net holder 4 is arranged to be bent, when the titanium net 11 moves to the joint of the front section plate 21 and the middle section plate 22 of the supporting wings, the titanium net 11 is only needed to be taken as the center, the titanium net holder 4 is slightly turned outwards horizontally, the titanium net 11 can be stably turned from the middle section plate 22 of the supporting wings to move to the front section plate 21 of the supporting wings, and finally falls into the titanium net mounting port 24 to reach the position where the titanium net 11 is expected to be mounted.

Fifthly, appropriately loosening the unlocking sliding key 81 to enable the distance between the adjacent vertebral bodies 12 to shrink, enabling end plates of the upper and lower vertebral bodies to be in contact with the upper and lower ends of the titanium net 11, slightly lifting the titanium net holder 4 to determine whether the titanium net 11 is in stable contact with the end plates of the vertebral bodies, pressing the unlocking sliding key 81 after the titanium net 11 is in stable contact with the end plates of the vertebral bodies, completely unlocking the one-way locking buckle 8, driving the lower support wings 3 to approach the upper support wings 2 by the movable support rods 6, releasing the support wings to the adjacent vertebral bodies 12, taking the upper support wings 2, the lower support wings 3 and the parallel struts 1 out of the wound, slightly lifting the titanium net holder 4 again at the moment, ensuring that the titanium net 11 is in stable contact with the end plates of the vertebral bodies, loosening the inverted tooth hooks 45 of the titanium net holder 4 to enable the titanium net holder 4 to be separated from the titanium net 11, taking out the titanium net holder 4, and completing the placement of the titanium net 11.

Claims

1. A titanium mesh imbedding assembly comprises a parallel distractor (1), and is characterized by also comprising an upper supporting wing (2) and a lower supporting wing (3) which are detachably arranged on the parallel distractor (1);

the upper supporting wing (2) and the lower supporting wing (3) are symmetrical in structure in opposite directions;

the upper supporting wing (2) comprises a front section plate (21), a middle section plate (22) and a tail section plate (23) which are integrally connected, a titanium mesh mounting port (24) with an open end is formed in the top of the front section plate (21), an included angle is formed between the central axis of the front section plate (21) and the central axis of the middle section plate (22), and a fixing hole (25) is formed in the tail section plate (23);

the upper and lower top surfaces of an upper clamping groove (52) of the parallel distractor (1) are provided with an upper through hole (53) penetrating through the upper clamping groove (52), and an upper supporting wing (2) is arranged on an upper connecting part (51) through the matching of the upper through hole (53) and a fixing hole (25);

the upper and lower top surfaces of a lower clamping groove (62) of the parallel distractor (1) are provided with a lower through hole (63) penetrating through the lower clamping groove (62), and the lower support wing (3) is installed on the lower connecting part (61) through the matching of the lower through hole (63) and the fixing hole (25).

2. The titanium mesh placement assembly of claim 1, wherein said central axis of said front plate (21) is at an obtuse angle to said central axis of said middle plate (22), said front plate (21) having a width equal to the width of said middle plate (22); the width of end section board (23) for 2/3 of middle section board (22) width, the inboard side of end section board (23) is the inboard side parallel and level of middle section board (22).

3. The titanium mesh implanting assembly as set forth in claim 1, wherein said parallel distractor (1) comprises a parallel distractor body comprising a pair of fixed (5) and movable (6) struts arranged in parallel, and the distal end portion of said fixed strut (5) is provided with an upper connecting portion (51) for connecting the upper support wing (2); an upper clamping groove (52) matched with the tail section plate (23) of the upper supporting wing (2) is horizontally formed in the vertical section of the upper connecting part (51), an upper through hole (53) penetrating through the upper clamping groove (52) is formed in the upper top surface and the lower top surface of the upper clamping groove (52), and the upper supporting wing (2) is installed on the upper connecting part (51) through the matching of the upper through hole (53) and the fixing hole (25);

the support structure is characterized in that a lower connecting part (61) connected with the lower support wing (3) is arranged at the far end part of the movable support rod (6), a lower clamping groove (62) matched with the tail section plate (23) of the lower support wing (3) is horizontally formed in the vertical section of the lower connecting part (61), a lower through hole (63) penetrating through the lower clamping groove (62) is formed in the upper top surface and the lower top surface of the lower clamping groove (62), and the lower support wing (3) is installed on the lower connecting part (61) through the matching of the lower through hole (63) and the fixing hole (25).

4. The titanium mesh implanting assembly according to claim 1, further comprising a titanium mesh holder (4), wherein the titanium mesh holder (4) comprises two holding arms (41) hinged to each other, the upper ends of the holding arms (41) are respectively provided with a bent holding head (42), the inner side surface of the top of the bent holding head (42) is provided with a tapered gripper (43), the tapered grippers (43) on the two bent holding heads (42) are in corresponding positions, the lower end of the holding arm (41) is provided with a holding finger sleeve (44), the two holding arms (41) are close to the inner side of the holding finger sleeve (44), and inverted tooth hooks (45) capable of being fastened and matched with each other are arranged;

the bending radian of the bent clamping head (42) is the same as that of the inner arc at the joint of the front section plate (21) and the middle section plate (22).

5. The titanium mesh placement assembly of claim 1, wherein said titanium mesh placement port (24) is "U" shaped.

6. The titanium mesh implanting assembly as claimed in claim 1, wherein the inner and outer side edges of the lower surfaces of the front plate (21) and the middle plate (22) of the upper supporting wing (2) are provided with convex edges (26), the convex edges (26) of the front plate (21) extend to two ends of the titanium mesh placing port (24), and the length of the convex edge (26) at the outer side of the middle plate (22) is greater than that of the convex edge (26) at the inner side;

the inner and outer side edges of the upper surfaces of the front section plate (21) and the middle section plate (22) of the lower support wing (3) are respectively provided with a convex edge (26), the convex edges (26) of the front section plate (21) extend to two ends of the titanium mesh placement port (24), and the length of the convex edges (26) on the outer side of the middle section plate (22) is greater than that of the convex edges (26) on the inner side.

7. A parallel distractor (1) comprises a parallel distractor main body, and is characterized in that the parallel distractor main body comprises a pair of fixed support rods (5) and a pair of movable support rods (6) which are arranged in parallel, and the distal end parts of the fixed support rods (5) are provided with upper connecting parts (51) for connecting upper support wings (2); an upper clamping groove (52) matched with a tail section plate (23) of an upper supporting wing (2) of the titanium mesh embedding assembly is horizontally formed in the vertical section of the upper connecting part (51), an upper through hole (53) penetrating through the upper clamping groove (52) is formed in the upper top surface and the lower top surface of the upper clamping groove (52), and the upper supporting wing (2) is installed on the upper connecting part (51) through the matching of the upper through hole (53) and the fixing hole (25);

the far-end portion of activity vaulting pole (6) be provided with lower connecting portion (61) of connecting lower support wing (3), lower connecting portion (61) vertical section level offer with titanium net put into the terminal plate (23) assorted lower draw-in groove (62) of lower support wing (3) of subassembly, lower draw-in groove (62) about the top surface offer run through lower draw-in groove (62) lower through-hole (63), through the cooperation of lower through-hole (63) and fixed orifices (25) with lower support wing (3) install on lower connecting portion (61).

8. The parallel distractor (1) of claim 7, wherein the body further comprises a toothed sliding rod (7) and a one-way locking buckle (8) movably sleeved on the toothed sliding rod (7), and the top end of the toothed sliding rod (7) is fixedly connected with the proximal end of the fixed strut (5); the movable support rod (6) is characterized in that a square trepanning (9) matched with the toothed sliding rod (7) is formed in the proximal end portion of the movable support rod, the lower edge of the square trepanning (9) is fixedly connected with the upper end of the one-way locking buckle (8), and the square trepanning (9) and the one-way locking buckle (8) are sleeved on the toothed sliding rod (7).

9. The support wing is characterized by comprising a front section plate (21), a middle section plate (22) and a tail section plate (23) which are connected integrally, wherein the top of the front section plate (21) is provided with a titanium mesh placing port (24) with an open end, an included angle between the central axis of the front section plate (21) and the central axis of the middle section plate (22) is an obtuse angle, and the width of the front section plate (21) is equal to that of the middle section plate (22); the width of end section board (23) for 2/3 of middle section board (22) width, the inboard side of end section board (23) and the inboard side parallel and level of middle section board (22), end section board (23) on seted up fixed orifices (25).

10. A titanium mesh holder (4) comprises two holding arms (41) which are hinged with each other, and is characterized in that the upper ends of the holding arms (41) are respectively provided with a bent holding head (42), the inner side surface of the top of the bent holding head (42) is provided with a conical grab handle (43), the conical grab handles (43) on the two bent holding heads (42) are corresponding in position, the lower end of the holding arm (41) is provided with a holding fingerstall (44), the two holding arms (41) are close to the inner side of the holding fingerstall (44), and inverted tooth hooks (45) which can be mutually fastened and matched are arranged;