CN109700521B - Opposite-penetrating minimally invasive vertebral canal forming device - Google Patents
Opposite-penetrating minimally invasive vertebral canal forming device Download PDFInfo
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- CN109700521B CN109700521B CN201910086277.3A CN201910086277A CN109700521B CN 109700521 B CN109700521 B CN 109700521B CN 201910086277 A CN201910086277 A CN 201910086277A CN 109700521 B CN109700521 B CN 109700521B
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- 230000007246 mechanism Effects 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 9
- 230000006837 decompression Effects 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 5
- 238000001356 surgical procedure Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000002146 bilateral effect Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000283984 Rodentia Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The invention relates to a pair-penetrating minimally invasive vertebral canal forming device which comprises a movable fixing frame, wherein a sliding type vertebral pedicle screw is arranged on the movable fixing frame, the movable fixing frame comprises a guide rail locking seat, a fixing seat is connected to the guide rail locking seat, an X-direction guide rail is arranged on the fixing seat, an X-direction adjusting hand wheel is arranged on the X-direction guide rail, a Z-direction guide rail is connected to the X-direction guide rail, a Z-direction adjusting hand wheel is arranged on the Z-direction guide rail, a bent arm is connected to the Z-direction guide rail, a Y-direction adjusting rod is connected to the bent arm, a guide template is connected to the Y-direction adjusting rod, a self-checking inclined plane guide pipe is connected to the guide template, and the sliding type vertebral pedicle screw is arranged in the self-checking inclined plane guide pipe. Therefore, the inclined planes at the lower ends of the two self-checking inclined plane guide pipes are matched with the inclined planes of the left vertebral plate and the right vertebral plate, and the use requirement in the minimally invasive spine surgery can be met.
Description
Technical Field
The invention relates to a forming device, in particular to a pair-wearing minimally invasive vertebral canal forming device.
Background
The corresponding devices involved in vertebroplasty require the installation of steel plates under the endoscope during use, achieving the posterior movement of the spinous process-ligament complex.
However, existing surgical devices also face the following challenges during use:
1. the control precision is poor, the backward movement of the spinous process-ligament complex is inconvenient to control precisely, and the spinous process-ligament complex is moved backward by manually lifting or pressing a sliding steel plate with grooves in the operation at present.
2. The operation is difficult, because the steel plate has certain length and installs the operation at the operation homonymy, can lead to the incision bigger like this, and in addition the spinous process "big end down" and its root have certain radian, lead to steel plate spinous process side screw fixation difficulty, the operation is wasted time and energy. Furthermore, the sliding grooves of the pressed sliding steel plates cannot be perpendicular to the horizontal plane, so that the spinous process-ligament complex is difficult to move backwards.
For this reason, the conventional molding apparatus has many drawbacks in use.
In view of the above-mentioned drawbacks, the present inventors have actively studied and innovated to create a minimally invasive, insertion-type spinal canal shaping device, which has a more industrial utility.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a pair-wearing minimally invasive vertebral canal forming device.
The invention discloses a pair-penetrating minimally invasive vertebral canal forming device, which comprises a movable fixing frame, wherein sliding pedicle screws are arranged on the movable fixing frame, and the device is characterized in that: the movable fixing frame comprises a guide rail locking seat, a fixing seat is connected to the guide rail locking seat, an X-direction guide rail is arranged on the fixing seat, an X-direction adjusting hand wheel is arranged on the X-direction guide rail, a Z-direction guide rail is connected to the X-direction guide rail, a Z-direction adjusting hand wheel is arranged on the Z-direction guide rail, a bent arm is connected to the Z-direction guide rail, a Y-direction adjusting rod is connected to the bent arm, a guide template is connected to the Y-direction adjusting rod, a self-checking inclined plane guide tube is connected to the guide template, a sliding type pedicle screw is arranged in the self-checking inclined plane guide tube, the sliding type pedicle screw comprises a lifting and locking mechanism, a through connecting rod is arranged on the lifting and locking mechanism, a sighting device is arranged on the through connecting rod, and the pedicle screw is of a one-way pedicle screw A structure or a pedicle screw B structure or a pedicle screw C structure.
Further, the pair-wearing minimally invasive vertebral canal forming device is characterized in that a Y-direction rotating joint is arranged on the bent arm, a Y-direction rotating locking hand wheel is connected to the Y-direction rotating joint, a Y-direction adjusting rod is connected to the Y-direction rotating locking hand wheel, a Y-direction auxiliary rotating joint is arranged on the Y-direction adjusting rod, and a Z-direction rotating joint is connected to the Y-direction auxiliary rotating joint.
Further, in the minimally invasive spine tube forming device, the main decompression slot and the auxiliary decompression slot are installed on the Z-direction rotary joint.
Furthermore, in the opposite-penetrating minimally invasive vertebral canal forming device, a guide groove is formed in the guide template, a self-checking inclined plane guide pipe is installed in the guide groove, and the lower end of the self-checking inclined plane guide pipe is an inclined plane.
Still further, the above-mentioned pair of minimal access vertebral canal shaping device, wherein, lift and locking mechanism includes pedicle screw and puts into the sleeve, the inside one side of pedicle screw is put into the sleeve is provided with pedicle screw and screws the passageway, and the opposite side is provided with adjusts the lift passageway, adjust the bottom of lift passageway and be provided with the lift screw.
Still further, the device for forming the opposite-penetrating minimally invasive vertebral canal comprises a connecting rod, wherein the connecting rod is connected with a connecting rod pushing rod, the sighting device comprises a guide template, a set screw is arranged on the guide template, and a guide hole for positioning the connecting rod pushing rod is further formed in the guide template.
Further, in the minimally invasive spine tube forming device, the front end of the connecting rod is in a spike shape, and the tail section of the connecting rod is provided with a threaded connecting portion.
Still further, the minimally invasive spine tube forming device of the opposite-penetrating type comprises a spine cap, wherein the bottom and the top of the spine cap are respectively provided with an inclined plane, the spine cap is internally connected with a lifting block, the upper plane and the lower plane of the lifting block are respectively provided with an inclined plane, the lower inclined plane of the lifting block is tightly attached to the bottom of the spine cap, a gap of 1-3 mm is formed between the upper inclined plane of the lifting block and the spine cap, an inclined duct is further formed in the lifting block, the top of the inclined duct is provided with threads, and the tail is smooth.
Still further, in the minimally invasive spine tube forming device of the opposite-penetrating type, the pedicle screw B comprises a screw cap, the screw cap is connected with a lifting cap in a back-off manner, the screw cap and the lifting cap are respectively provided with a U-shaped groove with corresponding positions, and the U-shaped grooves are connected to form an oval gap.
Furthermore, the opposite-penetrating minimally invasive vertebral canal forming device comprises a pedicle screw C, wherein the bottom and the top of the pedicle screw C are respectively provided with an inclined plane, and the head of a connecting rod matched with the pedicle screw C is provided with a vertical threaded hole.
Still further, above-mentioned pair of formula wicresoft spine tube forming device, wherein, the pilot pin guiding mechanism is installed to self-checking inclined plane stand pipe outside, the pilot pin guiding mechanism is including the pilot pin overcoat, be connected with the shutoff on the pilot pin overcoat, wear to be equipped with the spring in the pilot pin overcoat, be connected with the pilot pin in the spring.
By means of the scheme, the invention has at least the following advantages:
1. the inclined planes at the lower ends of the two self-checking inclined plane guide pipes are matched with the inclined planes of the left vertebral plate and the right vertebral plate, so that the use requirement in the minimally invasive spine surgery can be met.
2. The surgical positioning can be conveniently realized during the use, so that the position of the vertebral plate decompression slot, the nail feeding point and depth of the pedicle nail and the entering point and angle of the opposite-penetrating connecting rod at the root of the spinous process can be determined under the minimally invasive non-direct vision and non-ray perspective conditions of the spine, and the operation and the control of doctors are facilitated.
3. The whole structure is simple, and the use effect is good.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
Fig. 1 is a schematic side view of a mobile mount with guide templates.
Fig. 2 is a schematic view of the back structure of the mobile mount with guide templates.
Fig. 3 is a top view of the mobile mount with guide templates.
Fig. 4 is a schematic side view of a mobile mount with a pressure relief trough.
Fig. 5 is a schematic view of the back structure of the mobile mount with pressure relief slots.
Fig. 6 is a top view of a mobile mount with a pressure relief trough.
Fig. 7 is a schematic view of the overall structure of the pedicle screw a.
Fig. 8 is a schematic side structural view of the pedicle screw a.
Fig. 9 is a schematic view of the overall structure of the pedicle screw B.
Fig. 10 is a schematic side structural view of the pedicle screw B.
Fig. 11 is a schematic view of the overall structure of the pedicle screw C.
Fig. 12 is a schematic side structural view of the pedicle screw C.
Fig. 13 is a schematic structural view of a self-checking type inclined guide tube.
Fig. 14 is a schematic top view of a self-test beveled guide tube.
Fig. 15 is a schematic structural view of the indicator needle guide mechanism.
Fig. 16 is a schematic view of the combination of pedicle screw a and a cervical vertebral body.
Fig. 17 is a schematic view of the construction of the rail locking seat.
The meaning of each reference numeral in the figures is as follows.
1 pedicle screw imbedding sleeve 2 pedicle screw screwing channel
3 adjust lifting channel 4 lift screw
5 nail cap 6 lifting block
7 connecting rod 8 pedicle screw A
9 pedicle screw B10 pedicle screw C
11 lifting cap 12 elliptic gap
13 self-checking inclined plane guide tube 14 guiding template
15 holding screw 16 guiding hole
17Z-direction rotary joint 18Y-direction auxiliary rotary joint
19Y-direction adjusting rod 20Y-direction rotary joint
21 bent arm 22Y-direction rotation locking hand wheel
23Z-direction adjusting hand wheel 24X-direction adjusting hand wheel
25 fixing seat 26 guide rail locking seat
27 main relief groove 28 auxiliary relief groove
29 connecting rod pushing rod 30 indicating needle guiding mechanism
31 plug 32 spring
33 pointer jacket 34 pointer
35 upper cover 36 screw
37 wedge 38 lower seat
39 side guide rail
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
The opposite-wearing minimally invasive vertebral canal forming device shown in fig. 1 to 16 comprises a movable fixing frame, wherein sliding pedicle screws are arranged on the movable fixing frame, and the opposite-wearing minimally invasive vertebral canal forming device is characterized in that: the mobile mount includes a rail locking mount 26 that is mountable on the operating table. The guide rail locking seat 26 is connected with a fixed seat 25, and an X-direction guide rail is arranged on the fixed seat 25. Meanwhile, an X-direction adjusting hand wheel 24 is arranged on the X-direction guide rail, and a Z-direction guide rail is also connected to the X-direction guide rail. In consideration of the convenience of adjustment, a Z-direction adjusting hand wheel 23 is arranged on the Z-direction guide rail, and a bent arm 21 is connected to the Z-direction guide rail. The bent arm 21 is connected to a Y-direction adjusting lever 19, and the guide die plate 14 is connected to the Y-direction adjusting lever 19. In order to facilitate the operation of the surgical device, a self-checking type inclined plane guide tube 13 is connected to the guide template 14, and sliding pedicle screws are arranged in the self-checking type inclined plane guide tube 13. Specifically, the sliding pedicle screw comprises a lifting and locking mechanism, wherein a butt-penetrating type connecting rod is arranged on the lifting and locking mechanism, and a sighting device is arranged on the butt-penetrating type connecting rod. In order to adapt to different use demands, the invention adopts the corresponding pedicle screw, namely the unidirectional pedicle screw which can be constructed for the pedicle screw A8, the pedicle screw B9 or the pedicle screw C10.
As shown in fig. 17, in view of practical assembly, in order to facilitate connection and combination of the side rails of the operating table, the rail locking seat 26 includes a lower seat 38, an upper cover 35 is inserted onto the lower seat 38, and a screw 36 is threaded onto the upper cover 35. Meanwhile, a storage space with an inclined plane is arranged in the lower seat, a side guide rail 39 is arranged in the storage space in a penetrating manner, a positioning space is formed between the side guide rail 39 and the storage space, and a wedge-shaped block 37 is arranged in the positioning space. Therefore, during assembly, the wedge block 37 is pushed by rotation of the screw 36, so that the wedge block 37 butts against the side guide rail 39 when the lower seat 38 is expanded, the side guide rail of the operating table is locked without gaps, and the fixation stability is ensured.
In connection with a preferred embodiment of the present invention, in order to raise the movable range of the bending arm 21, a Y-direction rotation joint 20 is provided, and the Y-direction rotation joint 20 is connected with a Y-direction rotation locking hand wheel 22, so as to meet the necessary positioning and locking requirements. Meanwhile, a Y-direction adjusting rod 19 is connected to the Y-direction rotation locking hand wheel 22, a Y-direction auxiliary rotary joint 18 is installed on the Y-direction adjusting rod 19, and a Z-direction rotary joint 17 is connected to the Y-direction auxiliary rotary joint 18. Specifically, the Z-direction rotary joint 17 is provided with a main relief groove 27 and a sub relief groove 28.
Further, the guide template 14 adopted by the invention is provided with a guide groove, and a self-checking inclined guide tube 13 is arranged in the guide groove. And the lower end of the self-checking inclined plane guide tube 13 is an inclined plane. Thus, by means of the existence of the inclined plane, the two-side vertebral plate inclined plane can be completely matched with the inclined plane of the vertebral plate on the two sides of the vertebrae selected by preoperative planning, and the positioning function is achieved.
Still further, the lifting and locking mechanism adopted by the invention comprises a pedicle screw imbedding sleeve 1, wherein one side of the interior of the pedicle screw imbedding sleeve 1 is provided with a pedicle screw screwing channel 2, the other side is provided with an adjusting lifting channel 3, and the bottom of the adjusting lifting channel 3 is provided with a lifting screw 4. The opposite-wearing type connecting rod comprises a connecting rod 7, and a connecting rod pushing rod 29 is connected to the connecting rod 7. The connecting rod 7 is connected to the lifting block 6. Meanwhile, the sight comprises a guide template 14, a set screw 15 is arranged on the guide template 14, and a guide hole 16 for positioning a connecting rod pushing rod 29 is also arranged on the guide template 14. Of course, in view of convenience of practical use, the front end of the connection rod 7 is spike-shaped, and the tail section of the connection rod 7 is provided with a threaded connection portion.
As can be seen from fig. 7 and 8, the pedicle screw A8 includes a screw cap 5, and inclined surfaces are provided at the bottom and top of the screw cap 5. Meanwhile, a lifting block 6 is connected in the nail cap 5. Specifically, the upper and lower planes of the lifting block 6 are respectively provided with an inclined plane, the lower inclined plane of the lifting block 6 is clung to the bottom of the nut 5, and a gap of 1-3 mm is arranged between the upper inclined plane of the lifting block 6 and the top of the nut 5. And, the lifting block 6 is also internally provided with a diagonal duct, the top of the diagonal duct is provided with threads, and the tail part is smooth. And, be equipped with the recess above the nail cap 5, the recess links to each other with pedicle screw-in passageway 2, and there is a lift screw 4 on one side of the nail cap 5, and lift screw 4 links to each other with pedicle screw-in passageway 1's regulation lift passageway 3, and lift screw 4 screws in through the vertical thread hole in the elevating block 6.
Referring to fig. 9 and 10, the pedicle screw B9 includes a screw cap 5, a lifting cap 11 is connected to the screw cap 5 in a back-off manner, and U-shaped grooves corresponding to the positions of the screw cap 5 and the lifting cap 11 are formed in the screw cap 5 and the lifting cap 11, and the U-shaped grooves are connected to form an elliptical gap 12. And, in combination with practical use, the upper part of the lifting cap 11 is provided with a groove, the groove is connected with the pedicle screw screwing-in channel 2, one side of the lifting cap 11 is provided with a lifting screw 4, and the lifting screw 4 is connected with the adjusting lifting channel 3 in the pedicle screw imbedding channel 1. Simultaneously, pedicle screw B9 goes up and down U-shaped groove of cap 11, and both sides groove is not high, is equipped with the inclined plane. When the lifting screw 4 is screwed, the lifting cap 11 can vertically move upwards by 1-3 mm, the connecting rod 7 obliquely passing through the elliptical gap 11 can vertically move upwards by 1-3 mm, and the elliptical gap 12 firmly clamps the connecting rod 7 obliquely passing through.
As can be seen from fig. 11 to 12, the pedicle screw C10 includes a nut 5, and inclined surfaces are provided at the bottom and top of the nut 5. And, be equipped with the recess above the nail cap 5, the recess links to each other with pedicle screw-in passageway 2, and there is a lift screw 4 on one side of the nail cap 5, and lift screw 4 links to each other with pedicle screw to put into the regulation lift passageway 3 in passageway 1. The head of the connecting rod 7 is provided with a vertical threaded hole, when the connecting rod 7 obliquely passes through the root of the spinous process to reach the inside of the nail cap 5, the lifting screw 4 is screwed, so that the lifting screw 4 is screwed into the vertical threaded hole of the head of the connecting rod 7, and the connecting rod 7 is driven to vertically move upwards by a certain distance.
Meanwhile, an indicator needle guide mechanism 30 is installed at the outer side of the self-checking type inclined plane guide tube 13. Specifically, the indicator guide mechanism 30 includes an indicator sleeve 33, a plug 31 is connected to the indicator sleeve 33, a spring 32 is inserted into the indicator sleeve 33, and an indicator 34 is connected to the spring 32. When the protruding heights of the indicator pins 34 in the three indicator pin guide mechanisms 30 on the outer side of the self-checking type inclined plane guide tube 13 are consistent, the inclined plane at the lowest end of the self-checking type inclined plane guide tube 13 is completely consistent with the inclined cone plate.
The working principle of the invention is as follows:
taking 7-cone vertebral canal expansion and shaping of the posterior cervical as an example, the implementation steps of the invention are as follows:
before implementation, the CT image of the 7 vertebral bodies of the neck is imported into corresponding software to perform three-dimensional reconstruction, a three-dimensional model of the 7 vertebral bodies of the neck is obtained, operation simulation is performed on the obtained three-dimensional model, the inclination angle of the bilateral vertebral plates, the position of the decompression slot, the nail feeding point and depth of the pedicle nail, the entry point and angle of the opposite-penetrating fixing rod at the root of the spinous process are determined, and the inclined plane at the lowest end of the self-checking inclined plane guide tube 13 is completely matched with the bilateral inclined vertebral plates.
Then, the small incision on one side of the bypass behind the vertebral body of the neck 7 is taken, the guide template 14 is fixed on the Z-direction rotary joint 17, and the self-checking inclined guide tube 13 is fixed on the guide template 14. The self-checking inclined plane guide tube 13 is attached to the inclined vertebral plate by adjusting the mutual matching of the Z-direction rotary joint 17, the Y-direction auxiliary rotary joint 18, the Y-direction adjusting rod 19 and the Y-direction rotary joint 20 on the movable fixing frame and controlling the Y-direction rotary locking hand wheel 22, the Z-direction adjusting hand wheel 23 and the X-direction adjusting hand wheel 24. When the protruding heights of the indication needles 34 in the three indication needle guiding mechanisms 30 at the outer side of the self-checking inclined plane guiding tube 13 are consistent, the inclined plane at the lowest end of the self-checking inclined plane guiding tube 13 is completely matched with the inclined vertebral plate, so that accurate positioning is achieved.
Next, a reduced-pressure bone groove having a width of about 2 to 3mm is formed in the lamina along the self-test inclined guide tube 13 by the main reduced-pressure groove 27 using the lamina rongeur. Pedicle screws are screwed into the corresponding lateral mass of vertebral bone along self-checking inclined guiding tube 13 by pedicle screw insertion sleeve 1.
Then, on the opposite side, the connecting rod 7 is obliquely screwed into the spinous process root along the guide hole 16 on the guide template 14 by the connecting rod pushing rod 29, and is threaded into the oblique tunnel of the lifting block 6 of the pedicle screw A8 through the spinous process root, and then the connecting rod 7 is screwed into the top of the oblique tunnel. If the pedicle screw B9 is used, the connecting rod 7 is brought into an oval gap 12 formed by the screw cap 5 of the pedicle screw B9 and the U-shaped groove of the lifting cap 11. If the pedicle screw C is adopted, the connecting rod 7 is connected into the screw cap 5 of the pedicle screw C, the internal lifting screw 4 of the pedicle screw embedded sleeve 1 is screwed, the lifting screw 4 is screwed into the vertical thread hole at the head of the connecting rod 7, and the opposite-wearing connecting rod 7 is moved upwards by a certain distance.
Finally, taking a small bypass incision behind the contralateral side of the cervical 7 vertebral body, and adopting the same method to perform positioning, slotting and decompressing, nailing, rod feeding and rod lifting, so that the cervical 7 vertebral tube is enlarged.
Furthermore, the surgical procedures described in this example are merely illustrative of the use of the present invention, as the present invention is an aid that can be involved in the performance of a procedure, and is not intended to emphasize or protect the procedure, but rather to better disclose the construction of the various components of the present invention and the operation of the use thereof.
As can be seen from the above text expressions and the accompanying drawings, the invention has the following advantages:
1. the inclined planes at the lower ends of the two self-checking inclined plane guide pipes are matched with the inclined planes of the left vertebral plate and the right vertebral plate, so that the use requirement in the minimally invasive spine surgery can be met.
2. The surgical positioning can be conveniently realized during the use, so that the position of the vertebral plate decompression slot, the nail feeding point and depth of the pedicle nail and the entering point and angle of the opposite-penetrating connecting rod at the root of the spinous process can be determined under the minimally invasive non-direct vision and non-ray perspective conditions of the spine, and the operation and the control of doctors are facilitated.
3. The whole structure is simple, and the use effect is good.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and it should be noted that it is possible for those skilled in the art to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a to wearing formula wicresoft vertebral canal shaper, is including portable mount, be provided with slip pedicle screw on the portable mount, its characterized in that: the movable fixing frame comprises a guide rail locking seat (26), a fixing seat (25) is connected to the guide rail locking seat (26), an X-direction guide rail is arranged on the fixing seat (25), an X-direction adjusting hand wheel (24) is arranged on the X-direction guide rail, a Z-direction guide rail is connected to the X-direction guide rail, a Z-direction adjusting hand wheel (23) is arranged on the Z-direction guide rail, a bent arm (21) is connected to the Z-direction guide rail, a Y-direction adjusting rod (19) is connected to the bent arm (21), a guide template (14) is connected to the Y-direction adjusting rod (19), a self-checking inclined plane guide tube (13) is connected to the guide template (14), a sliding pedicle screw is arranged in the self-checking inclined plane guide tube (13), the sliding pedicle screw comprises a lifting and locking mechanism, a through type connecting rod is arranged on the lifting and locking mechanism, and a sighting device is arranged on the through type connecting rod, and the pedicle screw is in a one-way pedicle screw A (8) structure, or in a pedicle screw C (9) structure, or in a pedicle screw structure (10);
the guide template (14) is provided with a guide groove, a self-checking inclined plane guide pipe (13) is arranged in the guide groove, and the lower end of the self-checking inclined plane guide pipe (13) is an inclined plane;
the lifting and locking mechanism comprises a pedicle screw imbedding sleeve (1), a pedicle screw screwing-in channel (2) is arranged on one side of the interior of the pedicle screw imbedding sleeve (1), an adjusting lifting channel (3) is arranged on the other side, and a lifting screw (4) is arranged at the bottom of the adjusting lifting channel (3);
the butt-penetrating connecting rod comprises a connecting rod (7), a connecting rod pushing rod (29) is connected to the connecting rod (7), the sighting device comprises a guide template (14), a set screw (15) is arranged on the guide template (14), a guide hole (16) for positioning the connecting rod pushing rod (29) is further formed in the guide template (14), the front end of the connecting rod (7) is in a spike shape, and a threaded connecting part is arranged at the tail section of the connecting rod (7);
pedicle screw A (8) is including nail cap (5), the bottom and the top of nail cap (5) all are equipped with the inclined plane, be connected with lifter (6) in nail cap (5), the upper and lower plane of lifter (6) all is equipped with the inclined plane, the lower inclined plane of lifter (6) is hugged closely in nail cap (5) bottom, be provided with 1 ~ 3 mm's clearance between the upper inclined plane of lifter (6) and nail cap (5), still be equipped with a diagonal duct in lifter (6), the top in diagonal duct has the screw thread, and the afterbody is smooth.
2. The utility model provides a to wearing formula wicresoft vertebral canal shaper, is including portable mount, be provided with slip pedicle screw on the portable mount, its characterized in that: the movable fixing frame comprises a guide rail locking seat (26), a fixing seat (25) is connected to the guide rail locking seat (26), an X-direction guide rail is arranged on the fixing seat (25), an X-direction adjusting hand wheel (24) is arranged on the X-direction guide rail, a Z-direction guide rail is connected to the X-direction guide rail, a Z-direction adjusting hand wheel (23) is arranged on the Z-direction guide rail, a bent arm (21) is connected to the Z-direction guide rail, a Y-direction adjusting rod (19) is connected to the bent arm (21), a guide template (14) is connected to the Y-direction adjusting rod (19), a self-checking inclined plane guide tube (13) is connected to the guide template (14), a sliding pedicle screw is arranged in the self-checking inclined plane guide tube (13), the sliding pedicle screw comprises a lifting and locking mechanism, a through type connecting rod is arranged on the lifting and locking mechanism, and a sighting device is arranged on the through type connecting rod, and the pedicle screw is in a one-way pedicle screw A (8) structure, or in a pedicle screw C (9) structure, or in a pedicle screw structure (10);
the guide template (14) is provided with a guide groove, a self-checking inclined plane guide pipe (13) is arranged in the guide groove, and the lower end of the self-checking inclined plane guide pipe (13) is an inclined plane;
the lifting and locking mechanism comprises a pedicle screw imbedding sleeve (1), a pedicle screw screwing-in channel (2) is arranged on one side of the interior of the pedicle screw imbedding sleeve (1), an adjusting lifting channel (3) is arranged on the other side, and a lifting screw (4) is arranged at the bottom of the adjusting lifting channel (3);
the butt-penetrating connecting rod comprises a connecting rod (7), a connecting rod pushing rod (29) is connected to the connecting rod (7), the sighting device comprises a guide template (14), a set screw (15) is arranged on the guide template (14), a guide hole (16) for positioning the connecting rod pushing rod (29) is further formed in the guide template (14), the front end of the connecting rod (7) is in a spike shape, and a threaded connecting part is arranged at the tail section of the connecting rod (7);
the pedicle screw B (9) comprises a screw cap (5), the screw cap (5) is connected with a lifting cap (11) in a back-off manner, U-shaped grooves corresponding to the positions of the screw cap (5) and the lifting cap (11) are formed in each of the screw cap and the lifting cap, and the U-shaped grooves are connected to form an oval gap (12);
the U-shaped grooves of the lifting cap (11) of the pedicle screw B (9) are not equal in height, and the oval gap (12) firmly clamps the connecting rod (7) passing through in an inclined manner.
3. The utility model provides a to wearing formula wicresoft vertebral canal shaper, is including portable mount, be provided with slip pedicle screw on the portable mount, its characterized in that: the movable fixing frame comprises a guide rail locking seat (26), a fixing seat (25) is connected to the guide rail locking seat (26), an X-direction guide rail is arranged on the fixing seat (25), an X-direction adjusting hand wheel (24) is arranged on the X-direction guide rail, a Z-direction guide rail is connected to the X-direction guide rail, a Z-direction adjusting hand wheel (23) is arranged on the Z-direction guide rail, a bent arm (21) is connected to the Z-direction guide rail, a Y-direction adjusting rod (19) is connected to the bent arm (21), a guide template (14) is connected to the Y-direction adjusting rod (19), a self-checking inclined plane guide tube (13) is connected to the guide template (14), a sliding pedicle screw is arranged in the self-checking inclined plane guide tube (13), the sliding pedicle screw comprises a lifting and locking mechanism, a through type connecting rod is arranged on the lifting and locking mechanism, and a sighting device is arranged on the through type connecting rod, and the pedicle screw is in a one-way pedicle screw A (8) structure, or in a pedicle screw C (9) structure, or in a pedicle screw structure (10);
the guide template (14) is provided with a guide groove, a self-checking inclined plane guide pipe (13) is arranged in the guide groove, and the lower end of the self-checking inclined plane guide pipe (13) is an inclined plane;
the lifting and locking mechanism comprises a pedicle screw imbedding sleeve (1), a pedicle screw screwing-in channel (2) is arranged on one side of the interior of the pedicle screw imbedding sleeve (1), an adjusting lifting channel (3) is arranged on the other side, and a lifting screw (4) is arranged at the bottom of the adjusting lifting channel (3);
the butt-penetrating connecting rod comprises a connecting rod (7), a connecting rod pushing rod (29) is connected to the connecting rod (7), the sighting device comprises a guide template (14), a set screw (15) is arranged on the guide template (14), a guide hole (16) for positioning the connecting rod pushing rod (29) is further formed in the guide template (14), the front end of the connecting rod (7) is in a spike shape, and a threaded connecting part is arranged at the tail section of the connecting rod (7);
the pedicle screw C (10) comprises a screw cap (5), the bottom and the top of the screw cap (5) are respectively provided with an inclined plane, and the head of a connecting rod (7) matched with the pedicle screw C (10) is provided with a vertical threaded hole;
the connecting rod (7) obliquely passes through the root of the spinous process to reach the inside of the nail cap (5), and the lifting screw (4) is screwed into the vertical thread hole at the head of the connecting rod (7).
4. A minimally invasive, contralateral spinal canal shaping device as claimed in claim 1, 2 or 3, wherein: the Y-direction rotary locking device is characterized in that a Y-direction rotary joint (20) is arranged on the bent arm (21), a Y-direction rotary locking hand wheel (22) is connected to the Y-direction rotary locking hand wheel (20), a Y-direction adjusting rod (19) is connected to the Y-direction rotary locking hand wheel (22), a Y-direction auxiliary rotary joint (18) is arranged on the Y-direction adjusting rod (19), and a Z-direction rotary joint (17) is connected to the Y-direction auxiliary rotary joint (18); the Z-direction rotary joint (17) is provided with a main decompression groove (27) and a secondary decompression groove (28).
5. A minimally invasive, contralateral spinal canal shaping device as claimed in claim 1, 2 or 3, wherein: the self-checking inclined plane guide tube (13) outside is installed pilot pin guiding mechanism (30), pilot pin guiding mechanism (30) are including pilot pin overcoat (33), be connected with shutoff (31) on pilot pin overcoat (33), wear to be equipped with spring (32) in pilot pin overcoat (33), be connected with pilot pin (34) in spring (32).
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| CN201910086277.3A CN109700521B (en) | 2019-01-29 | 2019-01-29 | Opposite-penetrating minimally invasive vertebral canal forming device |
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| CN201910086277.3A CN109700521B (en) | 2019-01-29 | 2019-01-29 | Opposite-penetrating minimally invasive vertebral canal forming device |
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| CN109700521B true CN109700521B (en) | 2023-11-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113633367A (en) * | 2021-08-30 | 2021-11-12 | 苏州点合医疗科技有限公司 | An automatic upward-moving plate internal fixation device suitable for minimally invasive spine surgery |
| CN113576636A (en) * | 2021-08-30 | 2021-11-02 | 苏州点合医疗科技有限公司 | Buckling type steel plate internal fixing equipment for spine minimally invasive surgery |
| CN113827341A (en) * | 2021-10-26 | 2021-12-24 | 苏州点合医疗科技有限公司 | Positioning device suitable for minimally invasive spine surgery |
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