CN103431904A - Single screw type percutaneous zygopophysis pedicle screw internal fixation system - Google Patents
Single screw type percutaneous zygopophysis pedicle screw internal fixation system Download PDFInfo
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- CN103431904A CN103431904A CN2012105819246A CN201210581924A CN103431904A CN 103431904 A CN103431904 A CN 103431904A CN 2012105819246 A CN2012105819246 A CN 2012105819246A CN 201210581924 A CN201210581924 A CN 201210581924A CN 103431904 A CN103431904 A CN 103431904A
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- screw
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- pedicle screw
- soft tissue
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Abstract
The invention discloses a lumbar vertebral arch internal fixed screw used for orthopedic surgery of a hospital and an application device of the screw. A single screw type percutaneous zygopophysis pedicle screw internal fixation system comprises a locating sheathing canal used for determining a screw placement angle and a position of a body surface and a corresponding inner core, a guide pin used for determining a screw placement depth, a soft tissue expander used for expanding a screw placement channel of the body surface, a tapping rod piece, a medical hollow drill and a drilling tool used for drilling a bone, a screw implantation machine and a pedicle screw.
Description
Technical field
The present invention relates to a kind of lumbar vertebra vertebral arch internal fixation screw of hospital orthopedics operation use and the application apparatus of this screw thereof, belong to medical instruments field.
Background technology
The medical skill that the world today is increasingly flourishing, successful solution be difficult in the past in a large number the difficult miscellaneous diseases of curing, but the disease simultaneously changed also constantly occurs in the upgrading along with technology so how more can improve therapeutic effect just putting in face of numerous scientific research personnel.
Chinese invention patent 02157300.X discloses a kind of pier bridge-type pedicle system, it forms wherein Orthopedic rod by some Orthopedic rods and cross-bridges and a plurality of pedicle screw is cylindrical barred body, cross-bridges is flat square body, pedicle screw includes shank of screw, the hypomere body of rod of shank of screw is provided with external screw thread, its upper end is expanded head of screw and is had and the Orthopedic rod external diameter U-shaped deep trouth that matches, and expand in the two side of the U-shaped deep trouth of correspondence of head of screw is equipped with, external screw thread, have and shallow square groove that with cross-bridges profile match perpendicular with U-shaped deep trouth direction expanding on the two side of head of screw, Orthopedic rod is placed in pedicle screw and expands in the U-shaped deep trouth of head of screw, by pushing down by the female thread on the head of screw two side with externally threaded the first inner core, by tapped the first overcoat, by the external screw thread on the head of screw two side, pushed down again simultaneously, cross-bridges is placed in and expands in the shallow square groove of two side of head of screw, it is positioned on the first inner core and the first overcoat, and also by with externally threaded the second inner core and tapped the second overcoat also respectively by the head of screw two side, external screw thread is pushed down, make Orthopedic rod and cross-bridges be fixed on expanding on head of screw of same pedicle screw simultaneously.
Chinese invention patent 01808976.3 discloses again a kind of bone screw that is used in particular for the external fixator in fracture stabilization, comprise and there is predetermined length and diameter towards ending at the most advanced and sophisticated tapered slender cylinder in threaded end, and relative screw handles end, it is characterized in that: its screw is handled end and is had the diameter identical in fact with slender cylinder and be included in the planar section that on the major part that its cylinder do not have threaded part, axle cylindrical with it extends in parallel.In a further embodiment, this screw manipulatable end is formed with a plurality of planar sections, and this planar section extends in parallel along cylindrical axle with predetermined space.These planar sections at this cylinder and do not extend on the major part of threaded part and replace with bossing.
Chinese invention patent 03101477.1 discloses a kind of intramedullary pin, screw has been inserted to the devices and methods therefor of intramedullary pin, and pilot hole is formed between the intramedullary pin and distal screw director element inserted in medullary cavity.The guide wire that diameter is less than to each pilot hole inserts pilot hole, and is holed along guide wire.Then, metallic screw is retained on intramedullary pin, prevents that intramedullary pin from moving up and down and reversing, thereby can be not easily by the X-ray imaging device and insert exactly the distal metal screw.Therefore, reduce operating time, prevent the unwanted bone injury of patient or infection, greatly reduce patient and/or the doctor is exposed in x-ray radiation.
Though foregoing invention respectively has characteristics, all there are some defects, more such as accessory more complicated, special equipment, production cost is higher, and the bad and operating procedure of the effect after the product application is more loaded down with trivial details etc.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind ofly can utilize existing surgical apparatus, and improving cost is low, the cervical arc root screw internal fixing system that effect is good.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
Single nail formula percutaneous articular process cervical arc root screw internal fixing system, comprise location sheath pipe for determining angle of pedicle screw and body surface position and corresponding inner core, for determining the guide pin of putting the nail degree of depth, the soft tissue expander of putting the nail passage for enlarging body surface, tapping rod member, medical hollow drill and drilling tool, upper nail device and pedicle screw for boring bone;
Wherein soft tissue expander comprise the first long tube be socketed in the first long tube outer second in pipe, pipe is positioned on the first long tube by lock pin in second; Described soft tissue expander is provided with for soft tissue expander being shelved on to the fan-shaped leaf of body surface, and this fan-shaped leaf is slidably matched and is formed by some sector elements;
Described drilling tool is hollow rods, and this rod member is divided into the first thread segment, the second thread segment, spacing bulb and smooth shaft section successively to rear end by front end, and wherein the major diameter of thread of the first thread segment is less than the second thread segment;
Described pedicle screw is hollow-core construction, is divided into successively the 3rd thread segment, coarse bar section and nut to rear end by front end; Described the 3rd thread segment major diameter of thread is greater than the first thread segment, the matsurface that coarse bar section surface is comprised of micropore, and nut is provided with interior hexagonal heavy stand;
Described upper nail device is hollow-core construction, and the connecting key by its front end is connected with described nut para-position, and this connecting key is the boss with described interior hexagonal heavy stand form fit;
Wherein second and third thread segment equates with coarse bar section three external diameter, and described tapping rod member is the hollow rods that is provided with the tapping thread mated with the 3rd thread segment.
Under medical image system auxiliary, pedicle screw internal fixation operation process is: the location sheath pipe that 1, manually will be arranged with inner core is inserted by body surface, until offset with the inferior articular process upper surface of corresponding upper lumbar vertebral body, then keep location sheath pipe invariant position, take out inner core; 2, guide pin is inserted in the sheath pipe of location, and utilizes medical hollow drill to rotarily actuate this guide pin; Make guide pin Transarticular (jointly being formed by the superior articular process of the inferior articular process of upper lumbar vertebral body, the next lumbar vertebral body and gap between the two) and arrive at the pedicle of vertebral arch position of the next lumbar vertebral body, so (traditional practice is upper inferior articular process and the inferior articular process of contiguous upper vertebral body and the superior articular process of the next vertebral body that vertebra is hindered in excision to have set up a preliminary bone road, wound is large, the application carries out grappling by hindering vertebra with contiguous normal vertebra, realizes Wicresoft); 3, will locate the sheath pipe takes off, be inserted in soft tissue expander on guide pin, successively carry out soft-tissue expansion, before this first long tube is got involved to body surface, thereby and then untie corresponding lock pin pipe in second got involved to further expansion of body surface (the application do not repel set up the 3rd short tube further expand); 4, take out the sleeve pipe (the first long tube) herein of soft tissue expander inside, in soft tissue expander's outermost layer sleeve pipe (herein second in the pipe), be inserted in again the above-mentioned drilling tool that is hollow rods on guide pin, under driving with medical hollow drill, drilling tool has been realized reaming by first and second thread segment to above-mentioned preliminary bone road, facilitate the tapping operation of pedicle screw, until the first thread segment is drilled into the bottom in above-mentioned preliminary bone road, drilling tool stops piercing; The spacing bulb arranged on drilling tool is in order to prevent that the careless manipulation drilling tool from drilling the security set that pedicle of vertebral arch is done, spacing bulb is corresponding to the normal physiologic values of pedicle of vertebral arch with the inferior articular process of upper lumbar vertebral body with the distance value between the drilling tool front end, does not generally allow spacing bulb abut to articular process; 5, take out drilling tool, be inserted in again the tapping rod member on guide pin, carry out on artificial tapping ，Gu road setting up the screw thread mated with pedicle screw; 6, take out the tapping rod member, by pedicle screw, upper nail device, be enclosed within successively on guide pin again, upper nail device is connected with the pedicle screw para-position, by rotating upper nail device, make pedicle screw rotate in the lump, realize being threaded of pedicle screw Yu Gu road, along with the inferior articular process upper surface that nut starts to compress upper lumbar vertebral body that gos deep into of rotation, and realized exerting pressure in the prominent joint of corresponding joint, until the 3rd thread segment touches the bottom in bone road; Because the 3rd thread segment is larger than the first thread segment external diameter, the tapping rod member is provided with the tapping thread with the 3rd thread segment coupling, second and third thread segment equates with coarse bar section three external diameter, the tapping rod member can be easily through the second thread segment expansion Hou Gu road like this, bottom, Dan Gu road is by the first thread segment expansion, bottom, bone road needs tapping herein, and also can be more firm with the 3rd being threaded of thread segment coupling after tapping; The matsurface that coarse bar section surface is comprised of micropore is combined closely with the coarse bar section of pedicle screw like this in vertebra growth healing; 6, nail device, soft tissue expander and guide pin in taking-up, carry out the bandage after operation processing.Upper nail device is only that para-position is connected with pedicle screw, on side direction, by corresponding hexagonal structure, realize driving, axially, be because upper nail device is exerted pressure and realized the transmission of a directions to pedicle screw, if oppositely mention the nail device, upper nail device can separate at once with pedicle screw.
The accompanying drawing explanation
Fig. 1 is the exploded view of locating sheath pipe and corresponding inner core in the present invention.
Fig. 2 is sheath tubular construction schematic diagram in location in the present invention.
Fig. 3 is the structural representation of soft tissue expander in the present invention.
Fig. 4 is the top view of pedicle screw nut in the present invention.
Fig. 5 is the fan-shaped impeller structure schematic diagram of soft tissue expander in the present invention.
Fig. 6 is the fit structure schematic diagram of pedicle screw and human vertebrae in the present invention.
The specific embodiment
As shown in Figures 1 to 4, the present invention singly follows closely formula percutaneous articular process cervical arc root screw internal fixing system, comprises location sheath pipe for determining angle of pedicle screw and body surface position and corresponding inner core, for determining the guide pin of putting the nail degree of depth, the soft tissue expander of putting the nail passage for enlarging body surface, tapping rod member, medical hollow drill and drilling tool, upper nail device and pedicle screw for boring bone;
Wherein soft tissue expander comprise the first long tube be socketed in the first long tube outer second in pipe, pipe is positioned on the first long tube by lock pin in second; Described soft tissue expander is provided with for soft tissue expander being shelved on to the fan-shaped leaf of body surface, and this fan-shaped leaf is slidably matched and is formed by some sector elements; As each sector element upside is provided with chute, downside is provided with corresponding slide block, by slide block, with the assembling of chute, coordinates each sector element to be superimposed together up and down, and is slidably matched and realizes taking down the exhibits of fan-shaped leaf by this, launch can be beneficial to and shelve, draw in and be beneficial to laying of postoperative instrument;
Described drilling tool is hollow rods, and this rod member is divided into the first thread segment, the second thread segment, spacing bulb and smooth shaft section successively to rear end by front end, and wherein the major diameter of thread of the first thread segment is less than the second thread segment;
Described pedicle screw is hollow-core construction, is divided into successively the 3rd thread segment, coarse bar section and nut to rear end by front end; Described the 3rd thread segment major diameter of thread is greater than the first thread segment, the matsurface that coarse bar section surface is comprised of micropore (realizes that this surperficial micropore take the modes such as the clinkering of titanium silk, vacuum whitewashing titanium, spraying hydroxyapatite as main, in addition, the ball micropore also has employing), nut is provided with interior hexagonal heavy stand;
Described upper nail device is hollow-core construction, and the connecting key by its front end is connected with described nut para-position, and this connecting key is the boss with described interior hexagonal heavy stand form fit;
Wherein second and third thread segment equates with coarse bar section three external diameter, and described tapping rod member is the hollow rods that is provided with the tapping thread mated with the 3rd thread segment.
Described pedicle screw length is under medical imaging auxiliary, according to patient's concrete size and selected.
Those skilled in the art should be appreciated that the described hollow of present specification or hollow are all through-hole structures with guide pin coupling.
Fig. 5 only shows the Human Physiology position that the present invention is corresponding, can not be for limiting the structure of pedicle screw.
For a person skilled in the art, under the prerequisite that does not break away from structure of the present invention, can also make some distortion and improvement, as these also should be considered as protection scope of the present invention, these can not affect effect of the invention process and practical applicability.
Claims (1)
1. single nail formula percutaneous articular process cervical arc root screw internal fixing system is characterized in that: comprise location sheath pipe for determining angle of pedicle screw and body surface position and corresponding inner core, for determining the guide pin of putting the nail degree of depth, the soft tissue expander of putting the nail passage for enlarging body surface, tapping rod member, medical hollow drill and drilling tool, upper nail device and pedicle screw for boring bone;
Wherein soft tissue expander comprise the first long tube be socketed in the first long tube outer second in pipe, pipe is positioned on the first long tube by lock pin in second; Described soft tissue expander is provided with for soft tissue expander being shelved on to the fan-shaped leaf of body surface, and this fan-shaped leaf is slidably matched and is formed by some sector elements;
Described drilling tool is hollow rods, and this rod member is divided into the first thread segment, the second thread segment, spacing bulb and smooth shaft section successively to rear end by front end, and wherein the major diameter of thread of the first thread segment is less than the second thread segment;
Described pedicle screw is hollow-core construction, is divided into successively the 3rd thread segment, coarse bar section and nut to rear end by front end; Described the 3rd thread segment major diameter of thread is greater than the first thread segment, the matsurface that coarse bar section surface is comprised of micropore, and nut is provided with interior hexagonal heavy stand;
Described upper nail device is hollow-core construction, and the connecting key by its front end is connected with described nut para-position, and this connecting key is the boss with described interior hexagonal heavy stand form fit;
Wherein second and third thread segment equates with coarse bar section three external diameter, and described tapping rod member is the hollow rods that is provided with the tapping thread mated with the 3rd thread segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210581924.6A CN103431904B (en) | 2012-12-28 | 2012-12-28 | Single screw type percutaneous zygopophysis pedicle screw internal fixation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210581924.6A CN103431904B (en) | 2012-12-28 | 2012-12-28 | Single screw type percutaneous zygopophysis pedicle screw internal fixation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103431904A true CN103431904A (en) | 2013-12-11 |
| CN103431904B CN103431904B (en) | 2015-07-08 |
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| CN201210581924.6A Expired - Fee Related CN103431904B (en) | 2012-12-28 | 2012-12-28 | Single screw type percutaneous zygopophysis pedicle screw internal fixation system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076851A (en) * | 1992-03-17 | 1993-10-06 | 达纳医学股份有限公司 | The method of the internal fixation of pedicle of vertebral arch and device on the subcutaneous fascia |
| US20030083688A1 (en) * | 2001-10-30 | 2003-05-01 | Simonson Robert E. | Configured and sized cannula |
| US20040260307A1 (en) * | 2003-06-20 | 2004-12-23 | Stryker Trauma Gmbh | Drilling tool guide wire alignment device |
| CN1923149A (en) * | 2006-09-16 | 2007-03-07 | 李超 | Guiding means for putting vertebral arch pedicle nail |
| EP2502582A1 (en) * | 2011-03-25 | 2012-09-26 | National Cheng Kung University | Guiding assembly for spinal drilling operation |
| CN202604978U (en) * | 2012-05-21 | 2012-12-19 | 北京积水潭医院 | Coracoid holding and bolt implanting guide device for coracoid osteotomy displacement operation |
| CN203468727U (en) * | 2012-12-28 | 2014-03-12 | 周跃 | Single screw type percutaneous zygopophysis pedicle screw internal fixation system |
-
2012
- 2012-12-28 CN CN201210581924.6A patent/CN103431904B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076851A (en) * | 1992-03-17 | 1993-10-06 | 达纳医学股份有限公司 | The method of the internal fixation of pedicle of vertebral arch and device on the subcutaneous fascia |
| US20030083688A1 (en) * | 2001-10-30 | 2003-05-01 | Simonson Robert E. | Configured and sized cannula |
| US20040260307A1 (en) * | 2003-06-20 | 2004-12-23 | Stryker Trauma Gmbh | Drilling tool guide wire alignment device |
| CN1923149A (en) * | 2006-09-16 | 2007-03-07 | 李超 | Guiding means for putting vertebral arch pedicle nail |
| EP2502582A1 (en) * | 2011-03-25 | 2012-09-26 | National Cheng Kung University | Guiding assembly for spinal drilling operation |
| CN202604978U (en) * | 2012-05-21 | 2012-12-19 | 北京积水潭医院 | Coracoid holding and bolt implanting guide device for coracoid osteotomy displacement operation |
| CN203468727U (en) * | 2012-12-28 | 2014-03-12 | 周跃 | Single screw type percutaneous zygopophysis pedicle screw internal fixation system |
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| CN103431904B (en) | 2015-07-08 |
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