CN103845111A - Femoral neck conical hollow screw guider - Google Patents
Femoral neck conical hollow screw guider Download PDFInfo
- Publication number
- CN103845111A CN103845111A CN201410116394.7A CN201410116394A CN103845111A CN 103845111 A CN103845111 A CN 103845111A CN 201410116394 A CN201410116394 A CN 201410116394A CN 103845111 A CN103845111 A CN 103845111A
- Authority
- CN
- China
- Prior art keywords
- circular cone
- guide pinhole
- pinhole
- neck
- guide pin
- 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.)
- Granted
Links
- 210000002436 femur neck Anatomy 0.000 title abstract description 12
- 210000000689 upper leg Anatomy 0.000 claims description 21
- 206010017076 Fracture Diseases 0.000 description 16
- 210000003739 neck Anatomy 0.000 description 16
- 208000010392 Bone Fractures Diseases 0.000 description 15
- 238000013461 design Methods 0.000 description 6
- 210000000988 bone and bone Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 108010048734 sclerotin Proteins 0.000 description 4
- 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
- 208000027418 Wounds and injury 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
- 238000005516 engineering process Methods 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 206010061213 Iatrogenic injury Diseases 0.000 description 1
- 241000668842 Lepidosaphes gloverii Species 0.000 description 1
- 206010028851 Necrosis Diseases 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000845 cartilage Anatomy 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
- 208000020089 femoral neck fracture Diseases 0.000 description 1
- 239000007943 implant 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
- 238000005259 measurement Methods 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
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research 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
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- 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
- 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 or setting implements
- 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 applied to fixing special equipment in clinical medicine orthopaedics, fracture of femoral neck, a kind of for the accurate preset locating guider of guide pin.It relates to medical instruments field.
Background technology
At present, 10-15% patients with fracture of neck there will be almost uncontrollable complication of doctor, as nonunion and femur head necrosis etc.Its occurrence cause is relevant with primary injury and displacement fracture degree.And after anatomical reduction and stable interior fixing, fracture bone does not connect and femur head necrosis incidence rate ought to be down to acceptable reduced levels.The method of fracture fixation has a certain impact to After femoral neck fracture ischemic necrosis and bone does not connect, generally can adopt many nails fixing, but the intracapsular fracture and the serious fracture of femoral neck of pulverizing that are positioned at basilar part for some, follow closely fixing stability unsatisfactory more.In hollow screw, fix and be conventionally applicable to most of fracture of femoral neck.Outside Rehnberg and Oerud discovery greater trochanter, the intensity of cortex is on being fixed with obvious impact in screw.According to this research, they think that screw can not be fixed on greater trochanter lateral wall securely, will be easy to occur complication, and along with scientific and technical progress and the raising of medical skill, the development that less invasive techniques obtains advancing by leaps and bounds aspect surgical intervention.Traditional minimally-invasive treatment fracture of femoral neck, therapeutic method of surgery is the lower parallel hollow screw fixation of percutaneous of percutaneous X-ray machine monitoring, but that actual mechanical process hollow core screw is accurately squeezed into the success rate of neck of femur is lower.In order to adapt to the development of orthopaedics less invasive techniques, improve the success rate of operation, make fracture of femoral neck percutaneous internal fixation treatment more be tending towards complete, develop a kind of guider of diverse in function advanced technology, be the permanent expectation of medical circle personage and patient.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, guider a kind of when fixing for fracture of femoral neck, that hollow screw accurately imports is provided, it can reduce the number of times that guide pin is implanted repeatedly, effectively protects the intensity of neck of femur tuberosity lateral wall sclerotin.Reduce iatrogenic injury, be conducive to screw and insert default position, improve fixing stability in hollow screw.
To achieve these goals, the present invention adopts following technical scheme:
A kind of neck of femur circular cone hollow screw guider, is characterized in that it comprises location guide pin (1), compressive sleeve (4) and guiding circular cone (2); Location guide pin afterbody is provided with scale (6), and compressive sleeve is provided with lock screw (5); Guiding circular cone center is provided with location guide pinhole (7), and the surrounding of location guide pinhole establishes time guide pinhole (8) 3-20, and inferior guide pinhole is established side guide pinhole (9) 2-5 around, and guiding circular cone is provided with handle panel (3); From the beginning location guide pin is provided with a scale to tail 140-160mm place to the every 5-10mm of tail; The internal diameter of compressive sleeve is than the large 0.5-1mm of location guide pin diameter, and compressive sleeve is provided with nut bore (10); Guiding cone diameter 45-65mm, the high 35-60mm of guiding circular cone, the internal diameter of location guide pinhole is than the large 0.1-0.5mm of location guide pin diameter.Inferior guide pinhole is arranged in to locate on the circumference that guide pinhole is the center of circle, and this circumference diameter is between 35-60mm; Guide pinhole is the center of circle in proper order, and one of them circumference of diameter 3.14-8mm becomes 3 side guide pinholes of isosceles triangle shape distribution; The cone point that inferior guide pinhole, side guide pinhole lead to from the end disk of guiding circular cone the circular cone that leads is all gathered to location guide pinhole, and crossing its angle of extended line of the extended line of inferior guide pinhole, side guide pinhole and location guide pinhole is between 0-8 degree.
Operation principle of the present invention is: patient's anesthesia is placed on extension table, and the neck of femur of fracture, after resetting, is inserted location guide pin under the guiding of C type arm, and location guide pin is placed in neck of femur axle center, and the degree of depth is to the lower 5mm of head.Skin 3cm is cut at nail tail place, guiding circular cone and compressive sleeve are installed, guiding circular cone tip is to cortical bone outside tuberosity, fixing compressive sleeve, the degree of depth in the sclerotin of expliciting the position guide pin position, adjust circular cone and select respectively 3 conducts to enter to follow closely a little according to neck of femur diameter, lay respectively at bigelow's septum top, neck of femur back upper place and front upper place, as far as possible near femoral neck bone cortex.Insert after guide pin, through C type arm perspective, guide pin is positioned at neck of femur, under femoral head cartilage, removes compressive sleeve, and location guide pin and guiding circular cone, be positioned at sclerotin length according to location guide pin respectively, calculates and selects the hollow screw of appropriate length to implant.C type wall perspective screw position is good, and the degree of depth is moderate.
The invention has the advantages that:
[1] the present invention is according to human dissection knowledge, neck of femur, the same axle center of femoral head, Design Orientation guide pin, and location guide pin insert be conducive to reset after fracture of femoral neck stable, avoid other guide pins to be positioned at cortex edge and cause fracture
[2] the present invention should insert the length of screw according to the length judgement in sclerotin of location guide pin, reduces because of screw length discomfort, repeatedly changes and causes fixing fixing in bone screw to reduce, and reduces doctor and the patient time under lonizing radiation simultaneously.
[3] the present invention is applicable to the non-cylindrical design of neck of femur, and several guide pins and side guide pinhole be conducive to different-diameter neck of femur and select, and different anchor point are selected.
[4] guide pinhole of the present invention is cohesion 0-8 degree design, is convenient to the cohesion storing of screw tip, has strengthened the fixing stability of fracture of femoral neck.
[5] the lead pyramid type of circular cone of the present invention designs favourable guider and contacts closely with patient's skeleton, and the required otch of the conventional guider of conical comparison of design is little, causes wound little to patient, is conducive to Rehabilitation.
Beneficial effect of the present invention:
One, safety.The design is the implantation that pyramid type is convenient to each guide pin, reduce the cortical bone damage of greater trochanter moral lateral wall, screw cohesion is conducive to strengthen the femoral head inner bolt degree of depth, location guide pin is implanted the stable of favourable fracture, measurement of length, favourable estimation application screw length, reduces doctor and patient simultaneously and is exposed to the remaining time of " under C type arm ".
Two, effectiveness.Location guide pin and femoral head neck axle center are inserted, the centralized positioning of the circular cone that is convenient to lead, and the inferior guide pinhole on guiding circular cone, the selection that side guide pinhole is conducive to different big or small necks of femur, locate hollow screw and enter to follow closely a little.
Accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is the front view that the present invention locates guide pin.
Fig. 3 is the upward view of Fig. 1.
Fig. 4 is the top view of Fig. 1.
Fig. 5 is the cutaway view of Fig. 4.
Fig. 6 is the front view of compressive sleeve of the present invention.
Icon: (1) location guide pin, (2) guiding circular cone, (3) handle panel, (4) compressive sleeve, (5) lock screw, (6) scale, (7) location guide pinhole, (8) inferior guide pinhole, (9) side guide pinhole.
The 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 comprises location guide pin (1), compressive sleeve (4) and guiding circular cone (2); Location guide pin afterbody is provided with scale (6), and compressive sleeve is provided with lock screw (5); Guiding circular cone center is provided with location guide pinhole (7), and the surrounding of location guide pinhole establishes time guide pinhole (8) 3-20, and inferior guide pinhole is established side guide pinhole (9) 2-5 around, take 3 as good; Guiding circular cone is provided with handle panel (3).From the beginning leading pin is provided with a scale to tail 120-180mm place to the every 10mm of tail, and compressive sleeve side is provided with nut bore (10).Guiding cone diameter 45-65mm, high 35-60mm, guiding circular cone is with diameter 50mm, high 50mm is good, is provided with handle panel around, and center, the end is provided with one of location guide pinhole and adapts with location guide pin diameter, cohesion guide pinhole of concentric circular is several, the cohesion 0-8 degree of concentric circular diameter 40mm, inferior guide pinhole is established 3 of concentric circular side guide pinholes, concentric circular 3.14-8mm around.Inferior guide pinhole is arranged in to locate on the circumference that guide pinhole is the center of circle, and this circumference diameter is between 35-60mm; Guide pinhole is the center of circle in proper order, and one of them circumference of diameter 3.14-8mm becomes 3 side guide pinholes of isosceles triangle shape distribution, and this is Optimal Distribution method; The cone point that inferior guide pinhole, side guide pinhole lead to from the end disk of guiding circular cone the circular cone that leads is all gathered to location guide pinhole, and crossing its angle of extended line of the extended line of inferior guide pinhole, side guide pinhole and location guide pinhole is between 0-8 degree.From the beginning location guide pin is provided with a short scale to tail 150mm place to the every 5mm of tail, and every 10mm is provided with a long scale for best.
Claims (7)
1. a neck of femur circular cone hollow screw guider, is characterized in that it comprises location guide pin (1), compressive sleeve (4) and guiding circular cone (2); Location guide pin afterbody is provided with scale (6), and compressive sleeve is provided with lock screw (5); Guiding circular cone center is provided with location guide pinhole (7), and the surrounding of location guide pinhole establishes time guide pinhole (8) 3-20, and inferior guide pinhole is established side guide pinhole (9) 2-5 around, and guiding circular cone is provided with handle panel (3).
2. the hollow spiral shell pin of neck of femur circular cone according to claim 1 guider, is characterized in that locating guide pin and is from the beginning provided with a scale to tail 140-160mm place to the every 5-10mm of tail.
3. the hollow spiral shell pin of neck of femur circular cone according to claim 1 guider, is characterized in that the internal diameter of compressive sleeve is than the large 0.5-1mm of location guide pin diameter, and compressive sleeve is provided with nut bore (10).
4. the hollow spiral shell pin of neck of femur circular cone according to claim 1 guider, the cone diameter 45-65mm that it is characterized in that leading, the high 35-60mm of guiding circular cone.
5. the hollow spiral shell pin of neck of femur circular cone according to claim 1 guider, is characterized in that time guide pinhole is arranged in to locate on the circumference that guide pinhole is the center of circle, and this circumference diameter is between 35-60mm.
6. the hollow spiral shell pin of neck of femur circular cone according to claim 5 guider, is characterized in that the following guide pinhole is the center of circle, and one of them circumference of diameter 3.14-8mm becomes 3 side guide pinholes of isosceles triangle shape distribution.
7. according to the hollow spiral shell pin of the neck of femur circular cone guider described in claim 1,2,3,4,5,6, it is characterized in that the cone point that time guide pinhole, side guide pinhole lead to from the end disk of guiding circular cone the circular cone that lead all gathers to location guide pinhole, the extended line of inferior guide pinhole, side guide pinhole and crossing its angle of extended line of locating guide pinhole are between 0-8 degree.
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 true CN103845111A (en) | 2014-06-11 |
| CN103845111B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109009399A (en) * | 2018-06-20 | 2018-12-18 | 陈聚伍 | Fracture of neck of femur hollow nail accurate-location device |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0059044A2 (en) * | 1981-02-20 | 1982-09-01 | Pfizer Hospital Products Group, Inc. | Tool for use in inserting a surgical wire |
| US5346496A (en) * | 1991-12-13 | 1994-09-13 | Dietmar Pennig | Drill-device for alignment of a bone screw driven into the neck of a femur |
| US20030236527A1 (en) * | 2000-07-21 | 2003-12-25 | Fujio Kawakami | Multi-slot guide for bone-setting operation for a femoral neck fracture |
| 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 |
| US20100145391A1 (en) * | 2008-12-05 | 2010-06-10 | 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 |
| CN102499748A (en) * | 2011-11-08 | 2012-06-20 | 刘杰 | Intramedullary compression nail plate for olecroanon |
| CA2855695A1 (en) * | 2011-11-18 | 2013-05-23 | DePuy Synthes Products, LLC | Femoral neck fracture implant |
| CN202960746U (en) * | 2012-12-26 | 2013-06-05 | 夏海 | Orthopaedic surgery positioner |
| CN203042422U (en) * | 2013-01-31 | 2013-07-10 | 镐英杰 | Vertebral pedicle aiming device and aiming machine thereof |
| CN203122608U (en) * | 2013-01-24 | 2013-08-14 | 张君 | Fracture block compression fixing locating guider |
| 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
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0059044A2 (en) * | 1981-02-20 | 1982-09-01 | Pfizer Hospital Products Group, Inc. | Tool for use in inserting a surgical wire |
| US5346496A (en) * | 1991-12-13 | 1994-09-13 | Dietmar Pennig | Drill-device for alignment of a bone screw driven into the neck of a femur |
| US20030236527A1 (en) * | 2000-07-21 | 2003-12-25 | Fujio Kawakami | Multi-slot guide for bone-setting operation for a femoral neck fracture |
| 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 |
| US20100145391A1 (en) * | 2008-12-05 | 2010-06-10 | 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 |
| CN102499748A (en) * | 2011-11-08 | 2012-06-20 | 刘杰 | Intramedullary compression nail plate for olecroanon |
| CA2855695A1 (en) * | 2011-11-18 | 2013-05-23 | DePuy Synthes Products, LLC | Femoral neck fracture implant |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109009399A (en) * | 2018-06-20 | 2018-12-18 | 陈聚伍 | Fracture of neck of femur hollow nail accurate-location device |
| CN109009399B (en) * | 2018-06-20 | 2020-12-11 | 陈聚伍 | Accurate positioner of hollow nail of femoral neck fracture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103845111B (en) | 2017-01-25 |
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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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