CN105125275A - Semi-opened and semi-closed spine ilium bolt - Google Patents
Semi-opened and semi-closed spine ilium bolt Download PDFInfo
- Publication number
- CN105125275A CN105125275A CN201510587568.2A CN201510587568A CN105125275A CN 105125275 A CN105125275 A CN 105125275A CN 201510587568 A CN201510587568 A CN 201510587568A CN 105125275 A CN105125275 A CN 105125275A
- Authority
- CN
- China
- Prior art keywords
- head
- bolt
- screw
- nail
- semi
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
- A61B17/861—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver
- A61B17/8615—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver at the central region of the screw head
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8685—Pins or screws or threaded wires; nuts therefor comprising multiple separate parts
Abstract
The invention discloses a semi-opened and semi-closed spine ilium bolt, and relates to one of internal fixation implants which are used in spine-pelvis stable reconstruction for treating spine malformations, lumbosacral portion traumas, inflammations and tumor diseases. The semi-opened and semi-closed spine ilium bolt is characterized in that the bolt comprises a bolt cap, an intermediate body, a retainer ring and a bolt body, the interior of the bolt cap is hollow, an internal threaded hole is formed in the upper portion of the interior of the bolt cap, two waist-shaped holes are formed in the circumferential direction of the bolt cap, one waist-shaped hole is closed and is the closed waist-shaped hole of the bolt cap, and the other waist-shaped hole is opened and is the opened waist-shaped hole of the bolt cap, so that placing of a lateral connection rod is convenient; the intermediate body is provided with a hemispherical inner cavity, and the top end of the intermediate body is provided with a through hole; the head of the bolt body is of a spherical structure, the top end of the spherical structure is provided with steps, the upper end of the head is provided with a bolt internal hexagon hole, and the head of the bolt body is clamped in the bolt cap by being screwed in the retainer ring; the head of the bolt body is clamped in the bolt cap through the retainer ring so that disengagement of the bolt body cannot be achieved.
Description
Technical field
One of internal fixtion implant that a kind of spinal column-pelvic stabilization being used for the treatment of deformity of spine, lumbosacral region wound, inflammation and neoplastic conditions rebuilds that what a kind of half-open half closed form spinal column iliac screw of the present invention related to is.
Background technology
Spinal internal fixation system nowadays can ripely use.The development of internal fixation of spine technology is mainly for meeting the rectification to deformity of spine, since first case neck bone merges, the development of internal fixation of spine is never interrupted, develop into semi-rigid fixing and power fixed system by initial rigidly fixing, achieve the raising of spinal internal fixation system and perfect.Power fixed system and soft fixing or flexible fixing, be that spinal motion ensures in controlled range, can limit the abnormal motion of spinal column, can change again the load pattern of spinal motion segment, relieving stress, this is the internal fixation of spine technology of current extensive use.
For the spinal internal fixation system of the current breast waist way of escape, for the mounting hole of connection side to pitman in the head of a nail circumference of ilium nail used, pitman will pass mounting hole.But the pitman bending trouble of having shaped, inserting mounting hole more difficult, there is certain difficulty and risk for surgical in this.
Nowadays, spinal internal fixation system problem is noticeable, during operation, how simply, convenient, complete operation to low-risk and seem particularly important.Therefore, ilium nail is had higher requirement in the application of spinal internal fixation system.
Summary of the invention
The object of the invention is for above-mentioned weak point, provide a kind of half-open half closed form spinal column iliac screw, better, efficiently solve above full cut-off type iliac screw traditional at present produced problem in internal fixation of spine operation.
A kind of half-open half closed form spinal column iliac screw takes following technical scheme to realize:
A kind of half-open half closed form spinal column iliac screw comprises the head of a nail, intermediate, collar and screw.
Described head of a nail inner hollow, head of a nail inner upper is provided with internal thread hole, and head of a nail circumference has two mounting holes, one of them mounting hole is closed, and for mounting hole closed by the head of a nail, another one mounting hole is opening, for head of a nail opening mounting hole, facilitate the placement of side direction pitman.
Described intermediate is provided with a hemispherical cavity, has a through hole on the top of intermediate.
Described screw head is spherical structure, and there is step on the top of spherical structure, and head upper end is provided with screw inner hexagonal hole, is snapped in the head of a nail by screw head by screwing in collar.Screw is provided with screw bone thread.
Screw head is snapped in the head of a nail by described collar, and screw can not be exited.
Described collar is one and has elastic annular spring.
operation principle
First according to requirements of operation, the spinal internal fixation system first completing the breast waist way of escape is built, then punching, tapping on the ilium of relevant position, the iliac screw assembled is screwed in reserved screwed hole.The pitman of the spinal internal fixation system of the breast waist way of escape loads side direction pitman, then the opening mounting hole side of the pole end of side direction pitman along a kind of half-open half closed form spinal column iliac screw head of a nail is put into, then the angle of the head of a nail is adjusted, the cylindrical end of side direction pitman is injected in a kind of closed mounting hole of the half-open half closed form spinal column iliac screw head of a nail, completes internal fixtion work with this.
A kind of half-open half closed form spinal column iliac screw advantage:
Half-open half closed form spinal column iliac screw well solves side direction pitman in traditional spinal internal fixation system and places an inconvenient problem, makes it easy to operate, effectively shortens operating time, eliminate operation hidden danger potential in operation.
Accompanying drawing explanation
Below with reference to accompanying drawing, the invention will be further described
Fig. 1 is a kind of half-open half closed form spinal column iliac screw structural representation.
Fig. 2 is a kind of half-open half closed form spinal column iliac screw head of a nail schematic diagram.
Fig. 3 is a kind of half-open half closed form spinal column iliac screw intermediate sectional view.
Fig. 4 is a kind of half-open half closed form spinal column iliac screw structure and using state schematic diagram of operation technique.
In figure, labelling is as follows;
1, the head of a nail; 1-1, internal thread hole; 1-2, head of a nail opening mounting hole; Mounting hole closed by 1-3, the head of a nail; 2, intermediate; 2-1, through hole; 2-2, hemispherical cavity; 3, collar; 4, screw; 4-1, screw inner hexagonal hole; 4-2, screw bulb step; 4-3, screw bone thread; 5, pitman; 6, side direction pitman.
Detailed description of the invention
With reference to accompanying drawing 1 ~ 4, a kind of half-open half closed form spinal column iliac screw comprises the head of a nail 1, intermediate 2, collar 3 and screw 4.
The described head of a nail 1 inner hollow, the head of a nail 1 inner upper is provided with internal thread hole 1-1, and head of a nail circumference has two mounting holes, one of them mounting hole is closed, and for mounting hole 1-3 closed by the head of a nail, another one mounting hole is opening, for head of a nail opening mounting hole 1-2, facilitate the placement of side direction pitman.
Described intermediate 2 is provided with a hemispherical cavity 2-2, has a through hole 2-1 on the top of intermediate 2.
Described screw 4 head is spherical structure, and there is screw bulb step 4-2 on the top of spherical structure, and head upper end is provided with screw inner hexagonal hole 4-1, by screwing in collar 3, is snapped in the head of a nail 1 by screw 4 head.Screw 4 is provided with screw bone thread 4-3.
Screw head is snapped in the head of a nail by described collar 3, and screw 4 can not be exited.
Described collar 3 is one and has elastic annular spring.
A when a kind of half-open half closed form spinal column iliac screw uses, intermediate hemispherical cavity 2-2 outward opening is loaded the head of a nail 1 without the end of thread; The head of a nail 1 is compressed into after collar 3 being screwed in screw 4 cervical region.After completing a kind of assembling of half-open half closed form spinal column iliac screw, according to requirements of operation, first the spinal internal fixation system completing the breast waist way of escape is built, the ilium of relevant position punches, tapping, the iliac screw assembled is screwed in reserved screwed hole, the pitman 5 of the spinal internal fixation system of the breast waist way of escape loads side direction pitman 6, then the opening mounting hole 1-2 side of the pole end of side direction pitman 6 along a kind of half-open half closed form spinal column iliac screw head of a nail is put into, then the angle of the head of a nail 1 is adjusted, the cylindrical end of side direction pitman 6 is made to inject in a kind of closed mounting hole 1-3 of the half-open half closed form spinal column iliac screw head of a nail, internal fixtion work is completed with this.
Claims (3)
1. a half-open half closed form spinal column iliac screw, is characterized in that: comprise the head of a nail, intermediate, collar and screw;
Described head of a nail inner hollow, head of a nail inner upper is provided with internal thread hole, and described head of a nail circumference has two mounting holes, one of them mounting hole is closed, and for mounting hole closed by the head of a nail, another one mounting hole is opening, for head of a nail opening mounting hole, facilitate the placement of side direction pitman;
Described intermediate is provided with a hemispherical cavity, has a through hole on the top of intermediate;
Described screw head is spherical structure, and there is step on the top of spherical structure, and head upper end is provided with screw inner hexagonal hole, snaps in the head of a nail by screwing in collar by screw head;
Screw head is snapped in the head of a nail by described collar, and screw can not be exited.
2. the half-open half closed form spinal column iliac screw of one according to claim 1, is characterized in that: described collar is one and has elastic annular spring.
3. the half-open half closed form spinal column iliac screw of one according to claim 1, is characterized in that: screw is provided with screw bone thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510587568.2A CN105125275A (en) | 2015-09-16 | 2015-09-16 | Semi-opened and semi-closed spine ilium bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510587568.2A CN105125275A (en) | 2015-09-16 | 2015-09-16 | Semi-opened and semi-closed spine ilium bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105125275A true CN105125275A (en) | 2015-12-09 |
Family
ID=54711117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510587568.2A Pending CN105125275A (en) | 2015-09-16 | 2015-09-16 | Semi-opened and semi-closed spine ilium bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105125275A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105943143A (en) * | 2016-06-30 | 2016-09-21 | 山东威高骨科材料股份有限公司 | Reduction and internal fixation device for injury of lumbar vertebra, sacrum and ilium pelvis |
| WO2023202375A1 (en) * | 2022-04-18 | 2023-10-26 | 北京聚科动物骨科器械有限公司 | Device for fixing animal spine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030023243A1 (en) * | 2001-07-27 | 2003-01-30 | Biedermann Motech Gmbh | Bone screw and fastening tool for same |
| CN102133132A (en) * | 2010-12-31 | 2011-07-27 | 上海微创骨科医疗科技有限公司 | Dynamic screw implant for pedicle of vertebral arch |
| CN202821566U (en) * | 2012-07-06 | 2013-03-27 | 常州市康辉医疗器械有限公司 | Novel universal vertebral pedicle screw |
| CN203458462U (en) * | 2013-09-11 | 2014-03-05 | 北京理贝尔生物工程研究所有限公司 | Spinal pedicle screw |
| CN204016465U (en) * | 2014-07-11 | 2014-12-17 | 嘉兴德康医疗器械有限公司 | A kind of ilium nail of variable-angle |
| CN205054414U (en) * | 2015-09-16 | 2016-03-02 | 常州市康辉医疗器械有限公司 | Half and half closed backbone ilium bone screw |
-
2015
- 2015-09-16 CN CN201510587568.2A patent/CN105125275A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030023243A1 (en) * | 2001-07-27 | 2003-01-30 | Biedermann Motech Gmbh | Bone screw and fastening tool for same |
| CN102133132A (en) * | 2010-12-31 | 2011-07-27 | 上海微创骨科医疗科技有限公司 | Dynamic screw implant for pedicle of vertebral arch |
| CN202821566U (en) * | 2012-07-06 | 2013-03-27 | 常州市康辉医疗器械有限公司 | Novel universal vertebral pedicle screw |
| CN203458462U (en) * | 2013-09-11 | 2014-03-05 | 北京理贝尔生物工程研究所有限公司 | Spinal pedicle screw |
| CN204016465U (en) * | 2014-07-11 | 2014-12-17 | 嘉兴德康医疗器械有限公司 | A kind of ilium nail of variable-angle |
| CN205054414U (en) * | 2015-09-16 | 2016-03-02 | 常州市康辉医疗器械有限公司 | Half and half closed backbone ilium bone screw |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105943143A (en) * | 2016-06-30 | 2016-09-21 | 山东威高骨科材料股份有限公司 | Reduction and internal fixation device for injury of lumbar vertebra, sacrum and ilium pelvis |
| WO2023202375A1 (en) * | 2022-04-18 | 2023-10-26 | 北京聚科动物骨科器械有限公司 | Device for fixing animal spine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151209 |
|
| WD01 | Invention patent application deemed withdrawn after publication |