CN207125779U - A kind of minimally invasive spine internal fixation system - Google Patents
A kind of minimally invasive spine internal fixation system Download PDFInfo
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- CN207125779U CN207125779U CN201720255871.7U CN201720255871U CN207125779U CN 207125779 U CN207125779 U CN 207125779U CN 201720255871 U CN201720255871 U CN 201720255871U CN 207125779 U CN207125779 U CN 207125779U
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Abstract
The utility model discloses a kind of minimally invasive spine internal fixation system, including：Minimally invasive Path Setup and Stent assembly, it is sized for establishing the minimally invasive passage of operation in patients back and being expanded to；Boring assemblies, into minimally invasive passage in and in vertebra setting position drilling out a screwed hole；Some screw assemblies, each screw assembly include a screw and contiguous block, and screw top is rotatably coupled with contiguous block, have a first through hole on the contiguous block, are provided with screw thread on the madial wall of first through hole, the second through hole is provided with contiguous block side wall；Screw assembly installing mechanism, for inserting screws into screwed hole；Some pull bars, every pull bar can intert the second through hole of multiple contiguous blocks simultaneously；Rod assembly is worn, for pull bar to be located in the second through hole of multiple screw assemblies being fixed on vertebra；Some fastening nails, are used for compressing pull rod in first through hole.The utility model can complete the fixation to vertebra under less wound.
Description
Technical field
It the utility model is related to a kind of minimally invasive spine internal fixation system.
Background technology
When carrying out intervertebral operation, it is necessary to which adjacent vertebra is fixed, existing fixing means is with patient
The fixation that larger wound directly carries out screw and blind rivet is opened, wound is excessive to be unfavorable for patient postoperative rehabilitation, and easily produces
Complication provides a kind of minimally invasive spine internal fixation system for this utility model and is used to solve, it is necessary to longer post-operative recovery time
Certainly above mentioned problem.
Utility model content
In order to solve the above problems, the utility model provides a kind of minimally invasive spine internal fixation system.
Technical scheme is used by the utility model solves its technical problem：
A kind of minimally invasive spine internal fixation system, including：
Minimally invasive Path Setup and Stent assembly, for establishing the minimally invasive passage of operation in patients back and being expanded to setting chi
It is very little；
Boring assemblies, into minimally invasive passage in and in vertebra setting position drilling out a screwed hole；
Some screw assemblies, each screw assembly include a screw and contiguous block, and screw top and contiguous block are rotationally
Connect, there is a first through hole on the contiguous block, the manipulation end of screw is located at first through hole bottom, the madial wall of first through hole
On be provided with screw thread, contiguous block lateral wall has anti-rotation positioning device, the second through hole is provided with contiguous block side wall；
Screw assembly installing mechanism, for the screw in screw assembly to be threaded into hole；
Some pull bars, every pull bar can intert the second through hole of multiple contiguous blocks simultaneously, and pull bar is in arcuation；
Rod assembly is worn, drives pull bar pull bar to do the movement that track is circular arc, for pull bar to be located in into multiple be fixed on
In second through hole of the screw assembly on vertebra；
Some fastening nails, are used for compressing pull rod in first through hole.
The minimally invasive Path Setup and Stent assembly include：
First sleeve and probe, probe are plugged in first sleeve, and probe top and first sleeve top are removably
Link together, the bottom of first sleeve is extended in the bottom of probe；
Pin is guided, after probe inserts vertebra, probe is removed, by the hole position after guiding pin insertion probe to remove；
Some expanded casings, the external diameter of some expanded casings gradually increase.
The probe top is provided with side wall and is provided with dop, and the first sleeve upper portion side wall is provided with screens, dop
Probe is followed to be rotated into screens.
The boring assemblies include it is some can tapping different-diameter screw hole tapping cone, tapping cone cental axial position set
It is equipped with the third through-hole coordinated with guiding pin.
The anti-rotation positioning device includes at least one the first burnishing surface being arranged in contiguous block side wall；The screw assembly
Installing mechanism includes：
Second sleeve pipe, lower end inside wall are provided with the second burnishing surface coordinated with the first burnishing surface, the lower end of the second sleeve pipe
Side wall also sets up the avoidance breach for avoiding the second through hole；
3rd sleeve pipe, it is plugged in the second sleeve pipe, lower end is provided with the external screw thread coordinated with the screw thread on contiguous block, upper end
It is more than the annular projection of the second casing inner diameter with an external diameter；
First screwdriver, it is plugged in the 3rd sleeve pipe, the work department of the first screwdriver and the manipulation end of screw connect.
The upper end side wall of second sleeve pipe is additionally provided with the 3rd burnishing surface, and the rod assembly of wearing includes：
Some transfer blocks, be provided with a connecting hole in each transfer block, be provided with connecting hole madial wall with it is the 3rd smooth
The 4th burnishing surface that face coordinates, connection breach are additionally provided with transfer block；
Transit plate, it can be fixedly connected with multiple contiguous blocks at connection breach；
Rotating bar, one end are installed in rotation on transit plate, and the other end is connected with pull bar, and pull bar follows rotating bar to rotate
Into the second through hole.
The screw links together with contiguous block ball-and-socket hinge style.
The beneficial effects of the utility model are：It can be completed using the utility model of said structure under less wound
Fixation to vertebra, pull bar is accurately passed in the second through hole by rod assembly component is worn, then will be drawn in minimally invasive passage
Bar is fixed on screw；The utility model can complete the fixation of adjacent vertebrae under minimally invasive passage, beneficial to patient postoperative rehabilitation,
Postoperative complications are reduced, shorten post-operative recovery time, postoperative pain is reduced, reduces the wound to soft tissue.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples：
Fig. 1 is schematic diagram after first sleeve and probe assembling；
Fig. 2 is first sleeve and probe decomposing schematic representation；
Fig. 3 is guiding pin schematic diagram；
Fig. 4 is the schematic diagram of expanded casing；
Fig. 5 is the schematic diagram of tapping cone；
Fig. 6 is the schematic diagram of screw assembly installing mechanism；
Fig. 7 is the decomposing schematic representation of screw assembly installing mechanism；
Fig. 8 is the schematic diagram of screw assembly；
Fig. 9 is the schematic diagram of calibration plate；
Figure 10 is to wear rod assembly schematic diagram.
Embodiment
1~Figure 10 of reference picture, the utility model are a kind of minimally invasive spine internal fixation systems, including：
Minimally invasive Path Setup and Stent assembly, for establishing the minimally invasive passage of operation in patients back and being expanded to setting chi
It is very little；
Boring assemblies 1, into minimally invasive passage in and in vertebra setting position drilling out a screwed hole；
Some screw assemblies, each screw assembly include a screw 2 and contiguous block 3, and the top of screw 2 can turn with contiguous block 3
Connect dynamicly, there is a first through hole 4 on the contiguous block 3, the manipulation end 5 of screw 2 is located at the bottom of first through hole 4, and first is logical
Screw thread 6 is provided with the madial wall in hole 4, the lateral wall of contiguous block 3 has anti-rotation positioning device, and is provided with the side wall of contiguous block 3
Two through holes 7, the screw 2 link together with the ball-and-socket hinge style of contiguous block 3；
Screw assembly installing mechanism 8, for the screw 2 in screw assembly to be threaded into hole；
Some pull bars 9, every pull bar 9 can intert the second through hole 7 of multiple contiguous blocks 3 simultaneously, and pull bar 9 is in arcuation；
Rod assembly 10 is worn, drives the pull bar 9 of pull bar 9 to do the movement that track is circular arc, it is multiple solid for pull bar 9 to be located in
In second through hole 7 of the screw assembly being scheduled on vertebra；
Some fastening nails, are used for compressing pull rod 9 in first through hole 4.
Fixation to vertebra can be completed under less wound using the utility model of said structure, by wearing pull bar
The component of component 10 accurately passes to pull bar 9 in second through hole 7, then pull bar 9 is fixed on screw 2 in minimally invasive passage；This
Utility model can complete the fixation of adjacent vertebrae under minimally invasive passage, beneficial to patient postoperative rehabilitation, reduce postoperative complications, contracting
Short post-operative recovery time, postoperative pain is reduced, reduces the wound to soft tissue.The specific action process of the utility model is as follows：First
Minimally invasive passage is established at patient back by minimally invasive passage resume and Stent assembly, then bored by boring assemblies 1 on vertebra
Go out screwed hole, then screw assembly is arranged in screwed hole by screw assembly installing mechanism 8, then will by wearing rod assembly 10
Pull bar 9 does the movement that track is circular arc, and pull bar 9 enters the second through hole 7 through patient back skin and flesh, then is drawn by fastening nail cash pledge
Bar 9, the relative motion of locked pull bar 9 and screw 2, you can complete the fixation of adjacent vertebrae.
As illustrated, the minimally invasive Path Setup and Stent assembly include：
First sleeve 11 and probe 12, probe 12 are plugged in first sleeve 11, and the top of probe 12 and first sleeve 11
Top is removably joined together, and the bottom of first sleeve 11 is extended in the bottom of probe 12；
Pin 13 is guided, after probe 12 inserts vertebra, probe 12 is removed, guiding pin 13 is inserted after probe 12 removes
Hole position；
Some expanded casings 14, the external diameter of some expanded casings 14 gradually increase.
The minimally invasive Path Setup and process of expansion of said structure are as follows, first pass through the first sleeve 11 assembled and probe is worn
Skin and flesh is crossed, and probe 12 is inserted in vertebra, then removes probe, guiding pin 13 is inserted into the hole position after probe 12 is removed, so
Remove first sleeve 11 again afterwards, expanded casing 14 is carried out successively centered on guiding pin 13 to window from small to large according to external diameter
Expansion, retains the expanded casing 14 of largest outside diameter, it is removed with expanded casing 14, completes foundation and expansion to minimally invasive passage.
Minimally invasive passage will be established on adjacent vertebrae, also includes a calibration plate 15 for this utility model, is set on the calibration plate 15
Slot 16, first sleeve 11 passes through the foundation for carrying out minimally invasive passage again out of slot 16, by slot 16 to adjacent first set
Pipe 11 is defined（So that screw 2 is linearly distributed）So that the entrance of follow-up pull bar 9 is more convenient.
Cooperation between probe 12 and first sleeve 11 can use following structure, and the top of probe 12 is provided with side wall
Dop 17 is provided with, the upper portion side wall of first sleeve 11 is provided with screens 18, and dop 17 follows probe 12 to be rotated into screens
18, after dop 17 follows probe 12 to be rotated into screens 18, probe 12 and first sleeve 11 can stretch into trouble as an entirety
Carry out the foundation of minimally invasive passage on person's skin and flesh, the attachment structure of screens 18 and dop 17 is ingenious, beneficial to fast assembling-disassembling, bonding strength
It is high.
As illustrated, the boring assemblies 1 include it is some can tapping different-diameter screw hole tapping cone 19, tapping cone
19 cental axial position is provided with the third through-hole 20 coordinated with guiding pin 13.Pass through 20 sets of third through-hole during tapping 19 work of cone
Be located at guiding pin 13 on guide, tapping bore 19 tapping female bores have it is small arrive big progress, until reaching the screw thread being sized
Hole, take out guiding pin 13 and tapping cone 19.
As illustrated, the anti-rotation positioning device includes at least one the first burnishing surface 21 being arranged in the side wall of contiguous block 3；
The screw assembly installing mechanism 8 includes：
Second sleeve pipe 22, lower end inside wall are provided with the second burnishing surface 23 coordinated with the first burnishing surface 21, the second sleeve pipe
22 bottom side of the wall also sets up the avoidance breach 24 for avoiding the second through hole 7；
3rd sleeve pipe 25, it is plugged in the second sleeve pipe 22, lower end is provided with the outer spiral shell coordinated with the screw thread 6 on contiguous block 3
Line 26, upper end have the annular projection 27 that an external diameter is more than the internal diameter of the second sleeve pipe 22；
First screwdriver 28, is plugged in the 3rd sleeve pipe 25, the work department of the first screwdriver 28 and the manipulation end 5 of screw 2
Connection.It is as follows using the specific assembling process of the anti-rotation positioning device of said structure, the lower end of the second sleeve pipe 22 and contiguous block 3 is right
Connect, the 3rd sleeve pipe 25 is then inserted into the second sleeve pipe 22 and the external screw thread 26 of the 3rd sleeve pipe 25 is screwed in into first through hole 4, is now connected
Connect block 3, the second sleeve pipe 22 and the 3rd sleeve pipe 25 to be fixed together, the first screwdriver 28 is then inserted into the 3rd sleeve pipe 25 and and spiral shell
The manipulation end 5 of nail 2 connects, and whole screw assembly installing mechanism 8 is put into expanded casing 14 after assembling, and pass through first
Screwdriver 28 drives screw 2 to screw in screwed hole, then takes out the first screwdriver 28, the 3rd sleeve pipe 25, retains the second sleeve pipe 22.
As illustrated, the upper end side wall of second sleeve pipe 22 is additionally provided with the 3rd burnishing surface 29, it is described to wear rod assembly
10 include：
Some transfer blocks 30, a connecting hole is provided with each transfer block 30, is provided with connecting hole madial wall and the 3rd
The 4th burnishing surface 31 that burnishing surface 29 coordinates, connection breach are additionally provided with transfer block 30；
Transit plate 32, it can be fixedly connected with multiple contiguous blocks 3 at connection breach；
Rotating bar 33, one end are installed in rotation on transit plate 32, and the other end is connected with pull bar 9, and pull bar 9 follows rotation
Bar 33 is rotated into the second through hole 7.
By connecting transfer block 30 in the upper end of the second sleeve pipe 22, then multiple transfer blocks 30 are fixed on transit plate 32,
Rotating bar 33 is installed in rotation on transit plate 32 again, drives pull bar 9 to do the movement that track is circular arc by rotating bar 33,
Pull bar 9 is entered into the second through hole 7 through patient back skin and flesh, then nail will be fastened from minimally invasive passage by the second screwdriver and screw in the
One through hole 4, compressing pull rod 9, reaches fixed effect.
Above-described embodiment is preferred scheme of the present utility model, and the utility model can also have other embodiments.Ability
The technical staff in domain can also make equivalent variations or replacement on the premise of without prejudice to the utility model spirit, these equivalent changes
Type or replacement are all contained in the scope set by the application claim.
Claims (7)
- A kind of 1. minimally invasive spine internal fixation system, it is characterised in that including：Minimally invasive Path Setup and Stent assembly, it is sized for establishing the minimally invasive passage of operation in patients back and being expanded to；Boring assemblies, into minimally invasive passage in and in vertebra setting position drilling out a screwed hole；Some screw assemblies, each screw assembly include a screw and contiguous block, and screw top is rotatably coupled with contiguous block, There is a first through hole, the manipulation end of screw is located at first through hole bottom, set on the madial wall of first through hole on the contiguous block Screw thread is equipped with, contiguous block lateral wall has anti-rotation positioning device, the second through hole is provided with contiguous block side wall；Screw assembly installing mechanism, for the screw in screw assembly to be threaded into hole；Some pull bars, every pull bar can intert the second through hole of multiple contiguous blocks simultaneously, and pull bar is in arcuation；Wear rod assembly, drive pull bar pull bar to do the movement that track is circular arc, multiple vertebra is fixed on for pull bar to be located in On screw assembly the second through hole in；Some fastening nails, are used for compressing pull rod in first through hole.
- 2. a kind of minimally invasive spine internal fixation system as claimed in claim 1, it is characterised in that the minimally invasive Path Setup and expansion Opening component includes：First sleeve and probe, probe are plugged in first sleeve, and probe top and first sleeve top are detachably connected Together, the bottom of first sleeve is extended in the bottom of probe；Pin is guided, after probe inserts vertebra, probe is removed, by the hole position after guiding pin insertion probe to remove；Some expanded casings, the external diameter of some expanded casings gradually increase.
- 3. a kind of minimally invasive spine internal fixation system as claimed in claim 2, it is characterised in that the probe top is provided with side Wall is provided with dop, and the first sleeve upper portion side wall is provided with screens, and dop follows probe to be rotated into screens.
- 4. a kind of minimally invasive spine internal fixation system as claimed in claim 2, it is characterised in that the boring assemblies include some Can tapping different-diameter screw hole tapping cone, tapping cone cental axial position be provided with guiding pin coordinate third through-hole.
- 5. a kind of minimally invasive spine internal fixation system as claimed in claim 1, it is characterised in that the anti-rotation positioning device includes At least one is arranged on the first burnishing surface in contiguous block side wall；The screw assembly installing mechanism includes：Second sleeve pipe, lower end inside wall are provided with the second burnishing surface coordinated with the first burnishing surface, the bottom side of the wall of the second sleeve pipe Also set up the avoidance breach for avoiding the second through hole；3rd sleeve pipe, it is plugged in the second sleeve pipe, lower end is provided with the external screw thread coordinated with the screw thread on contiguous block, and upper end has One external diameter is more than the annular projection of the second casing inner diameter；First screwdriver, it is plugged in the 3rd sleeve pipe, the work department of the first screwdriver and the manipulation end of screw connect.
- A kind of 6. minimally invasive spine internal fixation system as claimed in claim 5, it is characterised in that the upper end side of second sleeve pipe Wall is additionally provided with the 3rd burnishing surface, and the rod assembly of wearing includes：Some transfer blocks, a connecting hole is provided with each transfer block, is provided with connecting hole madial wall and matches somebody with somebody with the 3rd burnishing surface The 4th burnishing surface closed, connection breach are additionally provided with transfer block；Transit plate, it can be fixedly connected with multiple contiguous blocks at connection breach；Rotating bar, one end are installed in rotation on transit plate, and the other end is connected with pull bar, and pull bar follows rotating bar to be rotated into Second through hole.
- 7. a kind of minimally invasive spine internal fixation system as claimed in claim 1, it is characterised in that the screw and contiguous block ball pivot Formula links together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720255871.7U CN207125779U (en) | 2017-03-15 | 2017-03-15 | A kind of minimally invasive spine internal fixation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720255871.7U CN207125779U (en) | 2017-03-15 | 2017-03-15 | A kind of minimally invasive spine internal fixation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207125779U true CN207125779U (en) | 2018-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720255871.7U Active CN207125779U (en) | 2017-03-15 | 2017-03-15 | A kind of minimally invasive spine internal fixation system |
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| Country | Link |
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| CN (1) | CN207125779U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106974714A (en) * | 2017-03-15 | 2017-07-25 | 中山市世医堂医疗器械有限公司 | A kind of minimally invasive spine internal fixation system |
| WO2023173470A1 (en) * | 2022-03-18 | 2023-09-21 | 杭州市富阳中医骨伤医院 | Intubation-type tissue expansion orthopedic minimally invasive surgery tool |
-
2017
- 2017-03-15 CN CN201720255871.7U patent/CN207125779U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106974714A (en) * | 2017-03-15 | 2017-07-25 | 中山市世医堂医疗器械有限公司 | A kind of minimally invasive spine internal fixation system |
| WO2023173470A1 (en) * | 2022-03-18 | 2023-09-21 | 杭州市富阳中医骨伤医院 | Intubation-type tissue expansion orthopedic minimally invasive surgery tool |
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