CN103431904B - Single screw type percutaneous zygopophysis pedicle screw internal fixation system - Google Patents
Single screw type percutaneous zygopophysis pedicle screw internal fixation system Download PDFInfo
- Publication number
- CN103431904B CN103431904B CN201210581924.6A CN201210581924A CN103431904B CN 103431904 B CN103431904 B CN 103431904B CN 201210581924 A CN201210581924 A CN 201210581924A CN 103431904 B CN103431904 B CN 103431904B
- Authority
- CN
- China
- Prior art keywords
- bolt
- thread segment
- thread
- pedicle
- soft tissue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The invention discloses a lumbar vertebral arch internal fixed bolt used for orthopedic surgery of a hospital and an application device of the bolt. A single bolt type percutaneous zygopophysis pedicle bolt internal fixation system comprises a locating sheathing canal and a corresponding inner core, a guide pin for determining the bolt depth, a soft tissue expander for expanding a bolt placement channel of the body surface, a tapping rod piece, a medical hollow drill and a drilling tool for drilling a bone, a bolt installing device and a vertebral pedicle bolt. The vertebral pedicle bolt is divided into a third thread segment, a rough rod segment, and an internal hexagonal heavy platform is arranged on the nut, the bolt installing device is a hollow structure, and is in counterpoint connection with the nut through a connection key at the front end, and the connection key is a boss matched with the internal hexagonal heavy platform. The invention overcomes the default of complex operation step in the prior art, and provides the single bolt type percutaneous zygopophysis pedicle bolt internal fixation system having low improvement cost.
Description
Technical field
The present invention relates to the lumbar vertebra vertebral arch internal fixation screw of a kind of hospital orthopedics operation 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, successfully solve the difficult miscellaneous diseases being difficult in the past in a large number cure, but the disease simultaneously changed also constantly occurs in the upgrading along with technology, so how more can improve therapeutic effect just puts 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 multiple 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 the U-shaped deep trouth that to match with Orthopedic rod external diameter, and expand in the two side of the U-shaped deep trouth of correspondence of head of screw is equipped with, external screw thread, the two side of head of screw has shallow square groove that is perpendicular with U-shaped deep trouth direction and that match with cross-bridges profile expanding, Orthopedic rod is placed in pedicle screw and expands in the U-shaped deep trouth of head of screw, pushed down by the female thread on head of screw two side by externally threaded first inner core of band, pushed down by the external screw thread on head of screw two side by tapped first overcoat again simultaneously, cross-bridges be placed in expand head of screw two side shallow square groove in, it is positioned on the first inner core and the first overcoat, and also by externally threaded second inner core of band and tapped second overcoat also respectively by 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 again discloses a kind of bone screw of the external fixator be used in particular in fracture stabilization, comprise there is predetermined length and diameter towards the slender cylinder ending at most advanced and sophisticated threaded ends taper, and relative screw-handling end, it is characterized in that: its screw-handling end has the diameter identical in fact with slender cylinder and is included in its cylinder and do not have the planar section that in the major part of threaded part, axle cylindrical with it extends in parallel.In a further embodiment, this screw manipulatable end is formed with multiple planar section, and this planar section extends in parallel along cylindrical axle with predetermined space.These planar sections do not have extension in the major part of threaded part at this cylinder and replace with bossing.
Chinese invention patent 03101477.1 discloses a kind of intramedullary pin, screw is inserted the devices and methods therefor of intramedullary pin, and pilot hole is formed in and inserts between intramedullary pin in medullary cavity and distal screw director element.Guide wire diameter being less than each pilot hole inserts pilot hole, and holes along guide wire.Then, metallic screw is retained on intramedullary pin, prevents intramedullary pin from moving up and down and reverses, thus easily and exactly can not insert distal metal screw by X-ray imaging device.Therefore, reduce operating time, prevent the unwanted bone injury of patient or infection, greatly reduce patient and/or doctor is exposed in x-ray radiation.
Though foregoing invention respectively has feature, all there are some defects, such as accessory more complicated, special equipment are more, and production cost is higher, and the bad and operating procedure of the effect after products 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 one 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 sites and corresponding inner core, for determine to put the guide pin of the nail degree of depth, the soft tissue expander of putting nail passage for expanding body surface, tapping rod member, for boring medical hollow drill and drilling tool, upper nail device and the pedicle screw of bone;
Wherein soft tissue expander comprises the first long tube with being socketed in second outside the first long tube and manages, and in second, pipe is positioned on the first long tube by lock pin; Described soft tissue expander is provided with the fan-shaped leaf for soft tissue expander being shelved on body surface, and this fan-shaped leaf is slidably matched by some sector elements and forms;
Described drilling tool is hollow rods, and this drilling tool is divided into the first thread segment, the second thread segment, spacing bulb and smooth shaft section by front end successively to rear 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 the 3rd thread segment, coarse bar section and nut by front end successively to rear end; Described 3rd thread segment major diameter of thread is greater than the first thread segment, the matsurface that coarse bar section surface is made up of micropore, and nut is provided with interior hexagonal heavy stand;
Described upper nail device is hollow-core construction, is connected with described nut para-position by the connecting key of its front end, and this connecting key is the boss with described interior hexagonal heavy stand form fit;
Wherein second and third thread segment is equal with coarse bar section three external diameter, and described tapping rod member is the hollow rods being provided with the tapping thread mated with the 3rd thread segment.
Medical image system auxiliary under, pedicle screw internal fixation operation process is: 1, manually inserted by body surface by the location sheath pipe being arranged with inner core, 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 this guide pin of medical hollow drill rotary actuation; Make guide pin Transarticular (being jointly made up of the inferior articular process of upper lumbar vertebral body, the superior articular process of 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 excises the lower articular of hindering vertebra dash forward and be close to the inferior articular process of upper vertebral body and the superior articular process of the next vertebral body to establish a preliminary bone road, wound is large, the application carries out grappling by hindering vertebra with contiguous normal vertebra, realizes Wicresoft); 3, location sheath pipe is taken off, guide pin is inserted in soft tissue expander, successively carry out soft-tissue expansion, before this first long tube is got involved body surface, and then untie corresponding lock pin and pipe in second is got involved body surface thus further expansion (the application do not repel set up the 3rd short tube further expand); 4, the sleeve pipe (namely the first long tube) herein of soft tissue expander inside is taken out, in soft tissue expander's outermost layer sleeve pipe (namely herein second in pipe), guide pin is inserted in the above-mentioned drilling tool in hollow rods again, with under the driving of medical hollow drill, drilling tool achieves reaming by first and second thread segment to above-mentioned preliminary bone road, facilitate the screwing 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 that drilling tool is arranged is the security set done to prevent careless manipulation drilling tool from drilling pedicle of vertebral arch, distance value between spacing bulb with drilling tool front end is corresponding to the normal physiologic values of pedicle of vertebral arch with the inferior articular process of upper lumbar vertebral body, does not generally allow spacing bulb abut to articular process; 5, take out drilling tool, guide pin is inserted in tapping rod member again, carries out artificial tapping, bone road is set up the screw thread mated with pedicle screw; 6, tapping rod member is taken out, again pedicle screw, upper nail device are enclosed within guide pin successively, upper nail device is connected with pedicle screw para-position, by rotating upper nail device, pedicle screw is rotated in the lump, realize being threaded of pedicle screw and bone road, along with rotate go deep into the inferior articular process upper surface that nut starts to compress upper lumbar vertebral body, and to corresponding joint dash forward joint realize exert pressure, 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, tapping rod member is provided with the tapping thread mated with the 3rd thread segment, second and third thread segment is equal with coarse bar section three external diameter, such tapping rod member can readily pass through the second thread segment expansion Hou Gu road, but expanded by the first thread segment bottom bone road, bone needs tapping herein bottom road, and being threaded of mating with the 3rd thread segment after tapping also can be more firm; The matsurface that coarse bar section surface is made up of micropore, combines closely with the coarse bar section of pedicle screw like this while vertebra growth healing; 7, taking-up follows closely device, soft tissue expander and guide pin, carry out bandage after operation process.Upper nail device and pedicle screw are only that para-position is connected, side direction realizes driving by corresponding hexagonal structure, be axially realize because upper nail device is exerted pressure to pedicle screw the transmission that is determined direction, if oppositely mention nail device, upper nail device then can be separated at once with pedicle screw.
Accompanying drawing explanation
Fig. 1 is the structural representation of inner core corresponding with location sheath pipe in the present invention.
Fig. 2 locates sheath tubular construction schematic diagram in the present invention.
Fig. 3 is the structural representation of soft tissue expander in the present invention.
Fig. 4 is the fan-shaped impeller structure schematic diagram of soft tissue expander in the present invention.
Fig. 5 is the top view of pedicle screw nut in the present invention.
Fig. 6 is the fit structure schematic diagram of pedicle screw and human vertebrae in the present invention.
Detailed description of the invention
As shown in Figures 1 to 5, list of the present invention nail formula percutaneous articular process cervical arc root screw internal fixing system, comprise location sheath pipe for determining angle of pedicle screw and sites and corresponding inner core, for determine to put the guide pin of the nail degree of depth, the soft tissue expander of putting nail passage for expanding body surface, tapping rod member, for boring medical hollow drill and drilling tool, upper nail device and the pedicle screw of bone;
Wherein soft tissue expander comprises the first long tube with being socketed in second outside the first long tube and manages, and in second, pipe is positioned on the first long tube by lock pin; Described soft tissue expander is provided with the fan-shaped leaf for soft tissue expander being shelved on body surface, and this fan-shaped leaf is slidably matched by some sector elements and forms; As being provided with chute on the upside of each sector element, downside is provided with corresponding slide block, coordinates each sector element to be superimposed together up and down by slide block with the assembling of chute, and is slidably matched is realized taking down the exhibits of fan-shaped leaf by this, launch then can be beneficial to shelve, draw in and be then 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 by front end successively to rear 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 the 3rd thread segment, coarse bar section and nut by front end successively to rear end; Described 3rd thread segment major diameter of thread is greater than the first thread segment, the matsurface that coarse bar section surface is made up of micropore (realizes the micropore on this surface then based on the clinkering of titanium silk, mode such as vacuum whitewashing titanium, spraying hydroxyapatite etc., in addition, ball micropore also has employing), nut is provided with interior hexagonal heavy stand;
Described upper nail device is hollow-core construction, is connected with described nut para-position by the connecting key of its front end, and this connecting key is the boss with described interior hexagonal heavy stand form fit;
Wherein second and third thread segment is equal with coarse bar section three external diameter, and described tapping rod member is the hollow rods being provided with the tapping thread mated with the 3rd thread segment.
Described pedicle screw length be medical imaging auxiliary under, selected according to the concrete size of patient.
Those skilled in the art should be appreciated that hollow described in present specification or hollow are all the through-hole structures mated with guide pin.
Fig. 6 only shows Human Physiology position corresponding to the present invention, can not be used for the structure limiting pedicle screw.
For a person skilled in the art, under the prerequisite not departing 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 all 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 sites and corresponding inner core, for determine to put the guide pin of the nail degree of depth, the soft tissue expander of putting nail passage for expanding body surface, tapping rod member, for boring medical hollow drill and drilling tool, upper nail device and the pedicle screw of bone;
Wherein soft tissue expander comprises the first long tube with being socketed in second outside the first long tube and manages, and in second, pipe is positioned on the first long tube by lock pin; Described soft tissue expander is provided with the fan-shaped leaf for soft tissue expander being shelved on body surface, and this fan-shaped leaf is slidably matched by some sector elements and forms;
Described drilling tool is hollow rods, and this drilling tool is divided into the first thread segment, the second thread segment, spacing bulb and smooth shaft section by front end successively to rear 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 the 3rd thread segment, coarse bar section and nut by front end successively to rear end; Described 3rd thread segment major diameter of thread is greater than the first thread segment, the matsurface that coarse bar section surface is made up of micropore, and nut is provided with interior hexagonal heavy stand;
Described upper nail device is hollow-core construction, is connected with described nut para-position by the connecting key of its front end, and this connecting key is the boss with described interior hexagonal heavy stand form fit;
Wherein second and third thread segment is equal with coarse bar section three external diameter, and described tapping rod member is the hollow rods being 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 CN103431904A (en) | 2013-12-11 |
| CN103431904B true CN103431904B (en) | 2015-07-08 |
Family
ID=49685698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210581924.6A Expired - Fee Related CN103431904B (en) | 2012-12-28 | 2012-12-28 | Single screw type percutaneous zygopophysis pedicle screw internal fixation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103431904B (en) |
Citations (5)
| 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 |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7008431B2 (en) * | 2001-10-30 | 2006-03-07 | Depuy Spine, Inc. | Configured and sized cannula |
| DE20309481U1 (en) * | 2003-06-20 | 2003-09-04 | Stryker Trauma Gmbh | Device for correctly inserting a guide wire for a drilling tool into a bone |
-
2012
- 2012-12-28 CN CN201210581924.6A patent/CN103431904B/en not_active Expired - Fee Related
Patent Citations (5)
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103431904A (en) | 2013-12-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7722611B2 (en) | Method of treating a clavicle fracture | |
| JP5653908B2 (en) | Posterior spinal fixation | |
| EP2175790B1 (en) | A bolt apparatus | |
| US20180146990A1 (en) | Apparatus and method for accessing the spine and placing pedicle screws without the use of guide-wires | |
| CN100512767C (en) | Trans-vertebral arch pedicle type hollow vertebra centrum bone-grafting apparatus | |
| CN203468727U (en) | Single screw type percutaneous zygopophysis pedicle screw internal fixation system | |
| EP1887952B1 (en) | Device for covered screwing of broken and shortened bones | |
| CN202313683U (en) | Posterior thoracolumbar minimally-invasive bone cement spinal internal fixing system | |
| CN209220462U (en) | A kind of near end of thighbone Medullary fixation device | |
| CN102973314A (en) | Thoracolumbar spine posterior minimally invasive bone cement spine internal fixation system and application | |
| RU174809U1 (en) | Titanium Spiral Lock | |
| US20110282348A1 (en) | Device for fixation of bone, and device set comprising the same | |
| CN201192374Y (en) | Pedicle of vertebral arch hollow corpus vertebrae bone grafting device | |
| CN203468723U (en) | Combined type percutaneous zygopophysis pedicle screw internal fixation system | |
| CN205215333U (en) | Locking external fixation frame plate system is dissected to four limbs length bone fracture | |
| US20090005816A1 (en) | Spinal rod, insertion device, and method of using | |
| CN103431904B (en) | Single screw type percutaneous zygopophysis pedicle screw internal fixation system | |
| CN203138650U (en) | Improved bone marrow core decompression surgical instrument for femoral head necrosis | |
| US20200030006A1 (en) | Modular Screw | |
| CN213310237U (en) | Reduction device for minimally invasive auxiliary reduction of tibial plateau fracture under monitoring of arthroscope | |
| CN103431901B (en) | Combined type percutaneous zygopophysis pedicle screw internal fixation system | |
| CN208710033U (en) | A kind of shin bone Medullary fixation device | |
| CN105125266A (en) | Self-tapping intramedullary fixation device suitable for long bone fractures | |
| CN105496527A (en) | Locking external fixation frame plate system for limb long bone and short bone fracture dissection | |
| CN208659523U (en) | A kind of femur marrow inner fixing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20151228 |
|
| EXPY | Termination of patent right or utility model |