CN105193491A - Intramedullary nail far-end laser locking aiming device - Google Patents
Intramedullary nail far-end laser locking aiming device Download PDFInfo
- Publication number
- CN105193491A CN105193491A CN201510507289.0A CN201510507289A CN105193491A CN 105193491 A CN105193491 A CN 105193491A CN 201510507289 A CN201510507289 A CN 201510507289A CN 105193491 A CN105193491 A CN 105193491A
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- China
- Prior art keywords
- laser
- far
- conduit
- medullary nail
- optical fiber
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- 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
- A61B17/72—Intramedullary pins, nails or other devices
- A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
-
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/90—Guides therefor
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses an intramedullary nail far-end laser locking aiming device consisting of a guide tube, an optical fiber, a laser generator, a laser aligner and a reflector, wherein the guide tube is an elastic hollow tube and is provided with a light outlet hole at a position close to a far end on the peripheral surface; the optical fiber, the laser aligner and the reflector are arranged in the guide tube; the far end of the optical fiber is connected with the laser aligner; the laser aligner and the reflector are positioned at the upper side and the lower side of the light outlet hole respectively; the reflector is provided with a reflecting surface for reflecting laser beams emitted by the laser aligner out of the light outlet hole; and the near end of the optical fiber is connected with the laser generator.
Description
Technical field
The invention belongs to technical field of medical instruments, relate to a kind of intra medullary nail far-end laser lock-on sight.
Background technology
Current intramedullary nail treatment long bone shaft fracture has become a standard art formula, but the shape expanded after marrow because of design and the long bone of intramedullary pin is not match very much, intramedullary pin there will be distortion and causes, in practical operation, distal locking nail difficulty occurs often after inserting pulp cavity, a conventional solution carries out the locking of far-end nail under C arm machine perspective, in addition intra medullary nail far-end locking system under area of computer aided is also had, magnetic navigation far-end locking system etc.These intra medullary nail far-end systems all ubiquity complex operations, need repeatedly to have an X-rayed, the defects such as success rate is lower at present.How to simplify the operation course, improve intra medullary nail far-end interlocking success rate, and the accurate lock carrying out far-end nail under reducing the prerequisite of ray is as far as possible a very real problem.
Summary of the invention
Therefore, technical problem to be solved by this invention be to provide a kind of simple to operate, do not have phototoxis, can the intra medullary nail far-end laser lock-on sight in accurate lock intramedullary pin interlocking hole fast, to overcome the deficiency that prior art exists.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of intra medullary nail far-end laser lock-on sight, is characterized in that: be made up of conduit, optical fiber, laser generator, laser aligner, illuminator; Described conduit is elastic hollow pipe, the position of conduit close to far-end on side face has light hole, described optical fiber, laser aligner and illuminator are all arranged in conduit, the far-end of described optical fiber connects laser aligner, described laser aligner and described light-emitting mirror lay respectively at the upper side and lower side of described light hole, and described illuminator has the reflecting surface laser beam reflection that described laser aligner penetrates being gone out described light hole; The near-end of described optical fiber connects described laser generator.
The proximal openings of described conduit, far-end is closed.
In order to described laser aligner and illuminator being stably fixed in conduit, described laser aligner and described illuminator are column.
Described reflecting surface is 45 degree of inclinations, and the central point of described reflecting surface aims at the center of described light hole.
Described laser generator is positioned at the outside of conduit, and is fixed on the near-end of described conduit.
Described conduit is metal tube.
In the present invention improves further, the position described conduit being positioned at nearly section is provided with the keeper of running fix on described conduit.Like this, this keeper is utilized just can accurately to control to enter the catheter length of intramedullary pin.For convenience of operation, this keeper is made into handle shape.
The end face of the far-end of described conduit is hemisphere face.
Described conduit is pipe, and diameter is 3mm, and wall thickness is 0.5mm; The diameter of described optical fiber is 0.9mm.
Adopt technique scheme, tool of the present invention has the following advantages:
(1) easy and simple to handle, do not need complicated debugging.
(2) laser guide is good, and accuracy is high.
(3) applied widely, be applicable to the different length intramedullary pin of various brand.
(4) do not need to carry out fluoroscopy during operation, reduce the x-ray radiation dosage of patient and doctor.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of far-end of the present invention;
Fig. 3 is the schematic diagram of position fixing handle;
Fig. 4 is occupation mode schematic diagram of the present invention.
Detailed description of the invention
As depicted in figs. 1 and 2, intra medullary nail far-end laser lock-on sight of the present invention, comprises conduit 100, optical fiber 200, laser alignment mirror 300, laser generator 400 and illuminator 500.
Wherein, conduit 100 is diameter 3mm, the elastic metallic hollow circular tube of wall thickness 0.5mm, its proximal openings, and far-end is closed, and the end face of far-end is hemisphere face.The diameter of optical fiber is 0.9mm.
Optical fiber 200, laser aligner 300 and illuminator 500 are all arranged in conduit 100, and it is outer and be fixed on the near-end of conduit 100 that laser generator 500 is positioned at conduit 500.The far-end of optical fiber 200 connects laser aligner 300.Conduit 100 has light hole 101 close to the position of far-end on side face.Laser aligner 300 and light-emitting mirror 500 are column, are fixed in conduit 100, lay respectively at the upper side and lower side of light hole 101.Illuminator 500 has the reflecting surface 501 that the laser beam 001 penetrated by laser aligner 300 reflects light hole 101, and the near-end of optical fiber 200 connects laser generator 400.
Laser conversion is directional light injection by laser aligner 300, and the laser beam 001 penetrated from laser aligner 300 is reflected light hole 101 by illuminator 500.
In the present embodiment, reflecting surface 501 is 45 degree of inclinations (i.e. angles at 45 ° with the central shaft of reflecting mirror 500), and the central point of reflecting surface 501 aims at the center of light hole 101.Like this, laser beam 001 vertical reflection penetrated from optical collimator 300 is just made to go out light hole 101.
In the present embodiment, conduit adopts metal tube, can certainly adopt that other is light tight, has elasticity and meet the material of medical requirement.
In addition, the intra medullary nail far-end laser lock-on sight of the present embodiment also includes keeper, and this keeper is designed to handle shape, forms position fixing handle 600.As shown in Figure 3, the structure of this position fixing handle 600 is prior art, is arranged on the nearly section of conduit 100, when position fixing handle is held with a firm grip, can slide along conduit 100, when position fixing handle is released, can fix on the conduit 100, thus realize moving in nearly section part and locating.This keeper is utilized just can accurately to control to enter the catheter length of intramedullary pin.
Be exactly more than the intra medullary nail far-end laser lock-on sight of invention, its occupation mode is:
(1) operation consent presets by slidably position fixing handle length and the angle that conduit enters intramedullary pin in vitro, is consistent by laser injection point with the position in intramedullary pin interlocking hole.
(2) after intramedullary pin inserts long bone pulp cavity in art, the elastic conduit 100 with optical fiber is inserted intramedullary pin 20, laser beam 001 is vertically penetrated intra medullary nail far-end interlocking hole 21 by the reflecting mirror in conduit by laser, as shown in Figure 4.
(3) accurately can hole by laser projections and squeeze into interlocking land in the position in the luminous point determination intramedullary pin interlocking hole of bone surface.
Can be found out by foregoing detailed description, intra medullary nail far-end laser lock-on sight tool of the present invention has the following advantages:
(1) easy and simple to handle, do not need complicated debugging.
(2) laser guide is good, and accuracy is high.
(3) applied widely, be applicable to the different length intramedullary pin of various brand.
(4) do not need to carry out fluoroscopy during operation, reduce the x-ray radiation dosage of patient and doctor.
Claims (10)
1. an intra medullary nail far-end laser lock-on sight, is characterized in that: be made up of conduit, optical fiber, laser generator, laser aligner, illuminator; Described conduit is elastic hollow pipe, the position of conduit close to far-end on side face has light hole, described optical fiber, laser aligner and illuminator are all arranged in conduit, the far-end of described optical fiber connects laser aligner, described laser aligner and described light-emitting mirror lay respectively at the upper side and lower side of described light hole, and described illuminator has the reflecting surface laser beam reflection that described laser aligner penetrates being gone out described light hole; The near-end of described optical fiber connects described laser generator.
2. intra medullary nail far-end laser lock-on sight according to claim 1, is characterized in that: the proximal openings of described conduit, and far-end is closed.
3. intra medullary nail far-end laser lock-on sight according to claim 1 and 2, is characterized in that: described laser aligner and described illuminator are column.
4. intra medullary nail far-end laser lock-on sight according to claim 1, is characterized in that: described reflecting surface is 45 degree of inclinations, and the central point of described reflecting surface aims at the center of described light hole.
5. intra medullary nail far-end laser lock-on sight according to claim 1, is characterized in that: described laser generator is positioned at the outside of conduit, and is fixed on the near-end of described conduit.
6. intra medullary nail far-end laser lock-on sight according to claim 1, is characterized in that: described conduit is metal tube.
7. intra medullary nail far-end laser lock-on sight according to claim 1, is characterized in that: be describedly supravasally positioned at the keeper that nearly section is provided with running fix on described conduit.
8. intra medullary nail far-end laser lock-on sight according to claim 1, is characterized in that: described keeper is made into handle shape.
9. intra medullary nail far-end laser lock-on sight according to claim 1, is characterized in that: the end face of the far-end of described conduit is sphere.
10. intra medullary nail far-end laser lock-on sight according to claim 1, it is characterized in that: described conduit is pipe, diameter is 3mm, and wall thickness is 0.5mm; The diameter of described optical fiber is 0.9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510507289.0A CN105193491A (en) | 2015-08-18 | 2015-08-18 | Intramedullary nail far-end laser locking aiming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510507289.0A CN105193491A (en) | 2015-08-18 | 2015-08-18 | Intramedullary nail far-end laser locking aiming device |
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| Publication Number | Publication Date |
|---|---|
| CN105193491A true CN105193491A (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510507289.0A Pending CN105193491A (en) | 2015-08-18 | 2015-08-18 | Intramedullary nail far-end laser locking aiming device |
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| CN (1) | CN105193491A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107280746A (en) * | 2016-04-05 | 2017-10-24 | 上海微创医疗器械（集团）有限公司 | Intramedullary nail |
| CN108852491A (en) * | 2018-05-31 | 2018-11-23 | 中国人民解放军第二军医大学第二附属医院 | A kind of orthopaedics intramedullary nail infrared rays navigation device |
| CN113616274A (en) * | 2021-08-06 | 2021-11-09 | 北京九奕科技有限公司 | Integrated disposable laser positioning guide pin for intramedullary nail hole positioning |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020193780A1 (en) * | 2001-06-15 | 2002-12-19 | Fakhri Karray | Bone drilling device |
| CN201320183Y (en) * | 2008-12-15 | 2009-10-07 | 深圳先进技术研究院 | Novel human endoscope catheter and system thereof |
| CN103263289A (en) * | 2013-05-28 | 2013-08-28 | 河北医科大学第三医院 | Screw-implanting sighting device used for minimally invasive surgery |
| CN204909622U (en) * | 2015-08-18 | 2015-12-30 | 容可 | Intramedullary nail distal end laser locking sight |
-
2015
- 2015-08-18 CN CN201510507289.0A patent/CN105193491A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020193780A1 (en) * | 2001-06-15 | 2002-12-19 | Fakhri Karray | Bone drilling device |
| CN201320183Y (en) * | 2008-12-15 | 2009-10-07 | 深圳先进技术研究院 | Novel human endoscope catheter and system thereof |
| CN103263289A (en) * | 2013-05-28 | 2013-08-28 | 河北医科大学第三医院 | Screw-implanting sighting device used for minimally invasive surgery |
| CN204909622U (en) * | 2015-08-18 | 2015-12-30 | 容可 | Intramedullary nail distal end laser locking sight |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107280746A (en) * | 2016-04-05 | 2017-10-24 | 上海微创医疗器械（集团）有限公司 | Intramedullary nail |
| CN108852491A (en) * | 2018-05-31 | 2018-11-23 | 中国人民解放军第二军医大学第二附属医院 | A kind of orthopaedics intramedullary nail infrared rays navigation device |
| CN108852491B (en) * | 2018-05-31 | 2020-06-12 | 中国人民解放军第二军医大学第二附属医院 | Infrared navigation device for orthopedic intramedullary nail |
| CN113616274A (en) * | 2021-08-06 | 2021-11-09 | 北京九奕科技有限公司 | Integrated disposable laser positioning guide pin for intramedullary nail hole positioning |
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Application publication date: 20151230 |