CN103845111B - Femoral neck conical hollow screw guider - Google Patents
Femoral neck conical hollow screw guider Download PDFInfo
- Publication number
- CN103845111B CN103845111B CN201410116394.7A CN201410116394A CN103845111B CN 103845111 B CN103845111 B CN 103845111B CN 201410116394 A CN201410116394 A CN 201410116394A CN 103845111 B CN103845111 B CN 103845111B
- Authority
- CN
- China
- Prior art keywords
- circular cone
- guide pin
- guide pinhole
- pinhole
- neck
- 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
- 210000002436 femur neck Anatomy 0.000 title abstract description 11
- 210000000689 upper leg Anatomy 0.000 claims description 22
- 208000010392 Bone Fractures Diseases 0.000 description 16
- 206010017076 Fracture Diseases 0.000 description 16
- 210000000988 bone and bone Anatomy 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 108010048734 sclerotin Proteins 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 210000000527 greater trochanter Anatomy 0.000 description 3
- 208000007875 Femur Head Necrosis Diseases 0.000 description 2
- 230000001054 cortical effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 206010061213 Iatrogenic injury Diseases 0.000 description 1
- 241000668842 Lepidosaphes gloverii Species 0.000 description 1
- 206010028851 Necrosis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000000302 ischemic effect Effects 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000011477 surgical intervention Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
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
-
- 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
Landscapes
- 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 a femoral neck conical hollow screw guider. The femoral neck conical hollow screw guider is characterized by comprising a locating guide pin (1), a pressurizing sleeve (4) and a guiding cone (2), wherein the tail part of the locating guide pin is provided with scales (6), the pressurizing sleeve is provided with a locking screw (5), the center of the guiding cone is provided with a locating guide pin hole (7), the periphery of the locating guide pin hole is provided with 3-20 secondary guide pin holes (8), the peripheries of the secondary guide pin holes are provided with 2-5 side guide pin holes (9), the guiding cone is provided with a handle disk (3), and the pressurizing sleeve is provided with a nut hole (10); the locating guide pin is provided with a scale in every 5-10 mm from a position, 140-160 mm away from the head, towards the tail part; the inner diameter of the pressurizing sleeve is 0.5-1 mm greater than the diameter of the locating guide pin, the diameter of the guiding cone is 45-65 mm, the height of the guiding cone is 35-60 mm, and the inner diameter of the locating guide pin hole is 0.1-0.5 mm greater than the diameter of the locating guide pin.
Description
Technical field
The present invention is to be applied to clinical medicine orthopaedics, fixing special equipment in fracture of femoral neck, a kind of accurate for guide pin
Really preset locating guider.It is related to medical instruments field.
Background technology
At present, 10-15% patients with fracture of neck occurs doctor's almost uncontrollable complication, such as nonunion
With femur head necrosiss etc..Its occurrence cause is relevant with primary injury and displacement fracture degree.And anatomical reduction is interior fixing with stable
Afterwards, fracture bone does not connect and femur head necrosiss incidence rate ought to be down to acceptable reduced levels.The method of fracture fixation is to stock
After bone fracture of cervical vertebra, ischemic necrosis and bone does not connect have a certain impact, and typically can be fixed using many nails, but for some positions
In intracapsular fracture and the serious fracture of femoral neck pulverized of basilar parts, follow closely fixing stability unsatisfactory more.In hollow screw
Fixation is commonly available to most of fracture of femoral neck.Rehnberg and oerud finds the intensity of greater trochanter lateral cortex to screw
Inside it is fixed with obvious impact.According to this research, they think that screw can not be stably attached on greater trochanter lateral wall, will
It is easy to complication, and the raising with scientific and technical progress and medical skill, less invasive techniques are in terms of surgical intervention
Obtain the development advanced by leaps and bounds.Traditional minimally-invasive treatment fracture of femoral neck, therapeutic method of surgery is the lower percutaneous of percutaneous x line machine monitoring
Parallel hollow screw fixation, but in actual mechanical process hollow screw accurately squeeze into neck of femur success rate relatively low.In order to suitable
Answer the development of orthopaedics less invasive techniques, improve the success rate of operation, so that fracture of femoral neck Percutaneous fixation is treated and more they tend to completely, grind
Make a kind of guider of advanced technology vdiverse in function, be medical circle personage and the permanent expectation of patient.
Content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, provide a kind of for fracture of femoral neck fixing when, hollow spiral shell
The guider that nail accurately imports, it can reduce the number of times that guide pin is implanted repeatedly, effective protection neck of femur tuberosity lateral wall sclerotin
Intensity.Reduce iatrogenic injury, be conducive to screw to insert default position, improve fixing stability in hollow screw.
To achieve these goals, the present invention adopts the following technical scheme that:
A kind of neck of femur circular cone hollow screw guider is it is characterised in that it includes positioning guide pin (1), compressive sleeve (4)
And guiding circular cone (2)；Positioning guide pin afterbody is provided with scale (6), and compressive sleeve is provided with lock screw (5)；Guiding circular cone center
It is provided with positioning guide pinhole (7), the surrounding of positioning guide pinhole sets time guide pinhole (8) 3-20, sets side guide pinhole around secondary guide pinhole
(9) 2-5, guiding circular cone is provided with handle panel (3)；From the beginning positioning guide pin is provided with to the every 5-10mm of tail at tail 140-160mm
One scale；The internal diameter of compressive sleeve 0.5-1mm bigger than positioning guide pin diameter, compressive sleeve is provided with nut bore (10)；Guiding circle
Cone diameter 45-65mm, guides the high 35-60mm of circular cone, the internal diameter 0.1-0.5mm bigger than positioning guide pin diameter of positioning guide pinhole.Secondary
Guide pinhole is arranged in position on the circumference as the center of circle for the guide pinhole, between a diameter of 35-60mm of this circumference；With secondary guide pinhole
For the center of circle, one of them circumference of diameter 3.14-8mm becomes isosceles triangle shape to be distributed 3 side guide pinholes；Secondary guide pinhole, side
The cone that guide pinhole leads to guiding circular cone from the bottom disk of guiding circular cone is all gathered to positioning guide pinhole, and secondary guide pinhole, side are led
The extended line of pin hole intersects its angle between 0-8 degree with the extended line of positioning guide pinhole.
The operation principle of the present invention is: be placed in after patient is anaesthetized on extension table, the neck of femur of fracture after resetting, in c
Positioning guide pin is inserted, positioning guide pin is placed in neck of femur axle center, 5mm under depth to head under arm guiding.Skin is cut at nail tail
3cm, installs guiding circular cone and compressive sleeve, guiding circular cone tip cortical bone to outside tuberosity, fixing compressive sleeve, expliciting the position
Depth in the sclerotin of guide pin position, adjustment circular cone selects follow closely a little as entering at 3 points according to neck of femur diameter respectively, is located at bigelow's septum respectively
Top, neck of femur back upper place and front upper place, close proximity to femoral neck bone cortex.After inserting guide pin, through c arm perspective, guide pin position
In neck of femur, under Femoral cardlage, remove compressive sleeve, positioning guide pin and guiding circular cone, be located at according to positioning guide pin respectively
Length in sclerotin, calculates and selects the hollow screw of appropriate length to implant.C type wall perspective screw position is good, and depth is moderate.
The invention has the advantages that:
[1] present invention is according to human dissection knowledge, the same axle center of neck of femur, femoral head, Design Orientation guide pin, and positions
The inserting of guide pin be conducive to resetting after the stablizing of fracture of femoral neck, it is to avoid other guide pins are located at cortex edge and cause fracture
[2] according to positioning guide pin, length in sclerotin judges to insert the length of screw the present invention, reduces because of screw length not
Suitable, repeatedly change and cause fixing fixing in bone screw to reduce, reduce the doctor and patient time under lonizing radiation simultaneously.
[3] present invention is applied to the design of neck of femur not rounded column type, several guide pins and side guide pinhole, is conducive to different-diameter
Neck of femur selects, and different positioning point selection.
[4] guide pinhole of the present invention is cohesion 0-8 degree design, is convenient to the cohesion storing of screw tip, strengthens femur
The fixing stability of fracture of cervical vertebra.
[5] present invention is guided the pyramid type of circular cone and designs favourable guider and contacted with subjects bones closely, conical sets
Otch needed for the conventional guider of meter contrast is little, causes wound little to patient, is conducive to Rehabilitation.
Beneficial effects of the present invention:
First, safety.The design is convenient to the implantation of each guide pin for pyramid type, reduces greater trochanter moral lateral wall cortical bone and damages
Wound, the cohesion of screw is conducive to strengthening femoral head inner bolt depth, and positioning guide pin implants stablizing of favourable fracture, the survey of length
Amount, favourable estimation application screw length, reduces doctor simultaneously and patient is exposed to the remaining time of " under c arm ".
2nd, effectiveness.Positioning guide pin is inserted with femoral head neck axle center, is convenient to guide the centralized positioning of circular cone, guiding circle
Secondary guide pinhole on cone, side guide pinhole are conducive to the selection of different size neck of femur, and positioning hollow screw enters to follow closely a little.
Brief description
Fig. 1 is the front view of the present invention.
Fig. 2 is the front view that the present invention positions guide pin.
Fig. 3 is the upward view of Fig. 1.
Fig. 4 is the top view of Fig. 1.
Fig. 5 is the sectional view of Fig. 4.
Fig. 6 is the front view of compressive sleeve of the present invention.
Icon: (1) positioning guide pin, (2) guiding circular cone, (3) handle panel, (4) compressive sleeve, (5) lock screw, (6) are carved
Degree, (7) positioning guide pinhole, (8) secondary guide pinhole, (9) side guide pinhole.
Specific embodiment
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, a kind of neck of femur circular cone hollow screw guider, it includes positioning
Guide pin (1), compressive sleeve (4) and guiding circular cone (2)；Positioning guide pin afterbody is provided with scale (6), and compressive sleeve is provided with locking screw
Silk (5)；Guiding circular cone center is provided with positioning guide pinhole (7), and the surrounding of positioning guide pinhole sets time guide pinhole (8) 3-20, secondary leads
Set side guide pinhole (9) 2-5 around pin hole, be preferred with 3；Guiding circular cone is provided with handle panel (3).Leading pin is from the beginning to tail
It is provided with a scale to the every 10mm of tail, compressive sleeve side is provided with nut bore (10) at 120-180mm.Guiding cone diameter 45-
65mm, high 35-60mm, with diameter 50mm, high 50mm is preferred guiding circular cone, is around provided with handle panel, and bottom center is provided with positioning and leads
Pin hole one is adapted with positioning guide pin diameter, and cohesion guide pinhole of concentric circular is several, the cohesion 0-8 degree of concentric circular diameter 40mm,
Concentric circular side guide pinhole 3, concentric circular 3.14-8mm is set around secondary guide pinhole.Secondary guide pinhole is arranged in position guide pinhole as circle
On the circumference of the heart, between a diameter of 35-60mm of this circumference；With secondary guide pinhole as the center of circle, diameter 3.14-8mm wherein it
One circumference becomes isosceles triangle shape to be distributed 3 side guide pinholes, and this is Optimal Distribution method；Secondary guide pinhole, side guide pinhole are from leading
The cone leading to guiding circular cone to the bottom disk of circular cone is all gathered to positioning guide pinhole, secondary guide pinhole, the prolongation of side guide pinhole
Line intersects its angle between 0-8 degree with the extended line of positioning guide pinhole.Positioning guide pin from the beginning at tail 150mm to the every 5mm of tail
It is provided with a short scale, it is optimal that every 10mm is provided with a long scale.
Claims (7)
1. a kind of neck of femur circular cone hollow screw guider it is characterised in that it include position guide pin (1), compressive sleeve (4) and
Guiding circular cone (2)；Positioning guide pin afterbody is provided with scale (6), and compressive sleeve is provided with lock screw (5)；Guiding circular cone center sets
There is positioning guide pinhole (7), the surrounding of positioning guide pinhole sets time guide pinhole (8) 3-20, sets side guide pinhole (9) around secondary guide pinhole
2-5, guiding circular cone is provided with handle panel (3).
2. neck of femur circular cone hollow screw guider according to claim 1, is characterized in that positioning guide pin from the beginning to tail
It is provided with a scale to the every 5-10mm of tail at 140-160mm.
3. neck of femur circular cone hollow screw guider according to claim 1, the internal diameter that it is characterized in that compressive sleeve is than fixed
The position big 0.5-1mm of guide pin diameter, compressive sleeve is provided with nut bore (10).
4. neck of femur circular cone hollow screw guider according to claim 1, is characterized in that guiding cone diameter 45-
65mm, guides the high 35-60mm of circular cone.
5. neck of femur circular cone hollow screw guider according to claim 1, is characterized in that time guide pinhole is arranged in fixed
Position guide pinhole is on the circumference in the center of circle, between a diameter of 35-60mm of this circumference.
6. neck of femur circular cone hollow screw guider according to claim 5, is characterized in that with secondary guide pinhole as the center of circle, directly
One of them circumference of footpath 3.14-8mm becomes isosceles triangle shape to be distributed 3 side guide pinholes.
7. neck of femur circular cone hollow screw guider according to claim 1, it is characterized in that time guide pinhole, side guide pinhole from
The cone that the bottom disk of guiding circular cone leads to guiding circular cone is all gathered to positioning guide pinhole, secondary guide pinhole, the prolonging of side guide pinhole
Long line intersects its angle between 0-8 degree with the extended line of positioning guide pinhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410116394.7A CN103845111B (en) | 2014-03-19 | 2014-03-19 | Femoral neck conical hollow screw guider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410116394.7A CN103845111B (en) | 2014-03-19 | 2014-03-19 | Femoral neck conical hollow screw guider |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103845111A CN103845111A (en) | 2014-06-11 |
| CN103845111B true CN103845111B (en) | 2017-01-25 |
Family
ID=50853531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410116394.7A Expired - Fee Related CN103845111B (en) | 2014-03-19 | 2014-03-19 | Femoral neck conical hollow screw guider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103845111B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109009399B (en) * | 2018-06-20 | 2020-12-11 | 陈聚伍 | Accurate positioner of hollow nail of femoral neck fracture |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4383527A (en) * | 1981-02-20 | 1983-05-17 | Howmedica, Inc. | Device for guiding the insertion of surgical wires into bone tissue |
| DE4141153A1 (en) * | 1991-12-13 | 1993-06-17 | Pennig Dietmar | GUIDE DEVICE FOR INSERTING A LEG SCREW |
| JP3342472B2 (en) * | 2000-07-21 | 2002-11-11 | 不二夫 川上 | Porous guide for femoral neck fracture osteosynthesis surgery |
| CN1689535A (en) * | 2004-04-28 | 2005-11-02 | 刘晓冬 | Internal fixation three-dimensional guider for femoral neck fracture |
| CN2852980Y (en) * | 2005-11-11 | 2007-01-03 | 李云升 | Orthopedic operation locator |
| US20080161820A1 (en) * | 2007-01-02 | 2008-07-03 | Zimmer Technology, Inc. | Method and apparatus for locating a starting point for a surgical procedure |
| US8366748B2 (en) * | 2008-12-05 | 2013-02-05 | Kleiner Jeffrey | Apparatus and method of spinal implant and fusion |
| CN201743753U (en) * | 2010-08-02 | 2011-02-16 | 谢仁国 | Locating and fixing guide device for adjuvant therapy of remote radio fracture through arthroscope |
| CN102499748B (en) * | 2011-11-08 | 2014-02-26 | 刘杰 | Intramedullary compression nail plate for olecroanon |
| BR112014011984B1 (en) * | 2011-11-18 | 2021-02-09 | Synthes Gmbh | bone fixation system |
| CN202960746U (en) * | 2012-12-26 | 2013-06-05 | 夏海 | Orthopaedic surgery positioner |
| CN203122608U (en) * | 2013-01-24 | 2013-08-14 | 张君 | Fracture block compression fixing locating guider |
| CN203042422U (en) * | 2013-01-31 | 2013-07-10 | 镐英杰 | Vertebral pedicle aiming device and aiming machine thereof |
| CN203885607U (en) * | 2014-03-19 | 2014-10-22 | 邓宇 | Conical hollow screw guider for femoral neck |
-
2014
- 2014-03-19 CN CN201410116394.7A patent/CN103845111B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103845111A (en) | 2014-06-11 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 233000 Room 401, West unit, building 1, Yuchen garden, 205 Shengping street, bengshan District, Bengbu City, Anhui Province Patentee after: Deng Yu Address before: 233300 room 402, unit 4, wo Xiang Garden, wo Xiang Road, Chengguan Town, Wuhe County, Bengbu, Anhui, China, 6 Patentee before: Deng Yu |
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| CP02 | Change in the address of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |