CN100506180C - Plate used to stabilize distal radius fractures - Google Patents
Plate used to stabilize distal radius fractures Download PDFInfo
- Publication number
- CN100506180C CN100506180C CNB2004800375191A CN200480037519A CN100506180C CN 100506180 C CN100506180 C CN 100506180C CN B2004800375191 A CNB2004800375191 A CN B2004800375191A CN 200480037519 A CN200480037519 A CN 200480037519A CN 100506180 C CN100506180 C CN 100506180C
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- China
- Prior art keywords
- plate
- bar
- bar portion
- hole
- plate part
- 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
- 206010037802 Radius fracture Diseases 0.000 title abstract description 3
- 238000005452 bending Methods 0.000 claims description 8
- 210000003484 anatomy Anatomy 0.000 claims description 6
- 230000001788 irregular Effects 0.000 abstract 1
- 206010017076 Fracture Diseases 0.000 description 16
- 208000010392 Bone Fractures Diseases 0.000 description 5
- 210000003141 lower extremity Anatomy 0.000 description 5
- 239000012634 fragment Substances 0.000 description 4
- 239000007943 implant Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 206010010149 Complicated fracture Diseases 0.000 description 1
- 241000446313 Lamella Species 0.000 description 1
- 208000006735 Periostitis Diseases 0.000 description 1
- 206010061363 Skeletal injury Diseases 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003460 periosteum Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 208000037974 severe injury Diseases 0.000 description 1
- 230000009528 severe injury Effects 0.000 description 1
- 238000001356 surgical 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, 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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
- A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
-
- 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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
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)
- Neurology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The invention relates to a plate which is used to stabilise distal radius fractures, comprising a longitudinal shaft (1) comprising an adjacent distal, anatomically preformed plate part (5). The envelope of the plate part has an essentially triangular shape, in addition to threaded bores (2,9) comprising threaded longitudinal axes; said threaded bores are embodied in a cone-like manner at least on the distal plate ends and are arranged in the shaft and in the distal plate part, said threaded longitudinal axes extending in a predominately non parallel manner in the distal plate part, and a right-angle bend (6) is formed between the shaft and the plate part. According to the invention, the triangular shape of the plate part or the respective envelope is irregular and the side of the triangle orientated away from the shaft comprises a plurality of conical threaded bores. The diameter of the bore of said conical threaded bores is less than the diameter of the screw holes in the shaft and the threaded longitudinal axes of the plurality of bores in the plate part on the shaft surface include an angle alpha which deviates by 90 DEG.
Description
Technical field
The present invention relates to a kind of plate that is used for stablizing distal radial fractures.
Background technology
Distal radial fractures is opened or the crooked close joints of hand of the radius that causes on hand cracking partly as bumping against owing to falling mostly, is the modal bone injurys of people.Radius mainly be near joints of hand together with or do not ftracture together with articular surface.Produce when the joints of hand axially loaded mostly with the severe injury of articular surface fracture itself, it makes radius be cleaved into a lot of pieces under extreme case.This fracture is multiple be born in for example carry out Inline Motoracing, by motorcycle, the patient of sports items such as skiing.
The operation indication depends on classification of fracture and degree of misalignment.Palmar bending or smith's fracture (Volar-Flexions-oder Smith-Frakturen) are unsettled all the time and are a kind of indications of the support plate-osteosynthesis (Abst ü tzplatten-Osteosynthese) of corresponding palmar.If have dorsal part and/or radial debris plume, such danger so just arranged: even after fragment is reorientated, still can tumble.Here also there is a kind of operation indication.For fear of the secondary dislocation, preferably adopt the stable plate of angle of palmar equally.
This stable plate of angle that has by the preformed far-end plate of anatomy that is used for distal radial fractures belongs to prior art, for example belong to Koenigsee Implantate und Instr (
Implantate und Instrumente zur OsteosyntheseGmbH).When described plate doctor Yi Peitelaite (Dr.Petereit) did the palmar application, the result that resets of operation fixed lastingly by three stable screws of angle, and the correction in not needing to perform the operation.This stable plate of known angle that is used for distal radial fractures has the plate of an elongated stem and a far-end, and its king-rod portion is connected by a bending with plate.Basically far-end plate triangular in shape is installed the stable screw of above-mentioned angle.On plate, process conical screw hole for this reason.But this known plate is because its very firm version and readjusting in can not undergoing surgery (refigure).
In this case, if having dorsal part and/or radial debris plume, adopt so by the plate of prior art and can not always and can not ideally fix all fragments after resetting, this is another shortcoming.
Summary of the invention
Therefore, in view of the foregoing, the objective of the invention is, a kind of plate that is used for fixing distal radial fractures of innovation is provided, it comprise an elongated shaft and be connected above it by the preformed far-end plate of anatomy, wherein, the plate that provide can reduce operation wound in principle, and has very high functional.This plate itself can be readjusted by the operation teacher, and such probability is provided: also can be stably fixing in the back angle that resets even have the complicated fracture of many fragments.
The plate that is used for stablizing distal radial fractures of the present invention comprise an elongated stem and be connected in this bar portion by the preformed far-end plate of anatomy, wherein, the envelope of plate has triangular shaped basically; Also comprise be arranged in the bar portion and the far-end plate in circular hole, these circular holes have the screwed hole that is threaded longitudinal axis of tapered structure, each screw thread longitudinal axis mainly is to distribute in the far-end plate not parallelly, and, between bar portion and plate, form a bending, according to the present invention, triangular shaped or the corresponding envelope of described plate is unequal-sided, wherein, that side of leg-of-mutton bar dorsad portion has the screwed hole of a plurality of tapers, the aperture of these screwed holes is selected less than the diameter of screwed hole in the bar portion or screw hole, and the screw thread longitudinal axis of the described a plurality of screwed holes in the plate becomes one to be not equal to 90 ° angle with bar portion surface
According to basic conception of the present invention, the corresponding envelope of triangular shaped or this plate of plate is unequal-sided.That side of the portion of bar dorsad of triangle or envelope has many conical screw holes, and wherein the aperture of these screwed holes is selected significantly less than the diameter of the screwed hole in the bar portion.In the far-end plate this permitted porous screw thread longitudinal axis and become scarcely identical angle [alpha] with bar portion, and this angle is not equal to 90 °.
In a kind of preferred version, that side of leg-of-mutton bar dorsad portion has a discontinuities or vacancy face, and wherein, bar portion and plate form the Y font.In this design, on each bar limit of the plate that constitutes the Y font jointly, a lateral surfaces piece is set, it comprises at least two conical screw holes respectively.The lateral surfaces piece can have different length and/or width, and with respect to the bending of bar portion or agley the structure.
There is a slotted hole in bar portion one side except conical screw hole and/or in order to install and fix screw, in order that both be convenient to the centering of plate by this combination, again on the other hand by screw connect guaranteed fixing reliably.
The cross section of bar portion preferably has and arches upward, thereby can reduce twinge (stimulation) bone surface.
In order to optimize the anatomy coupling of radius plates, each summit of far-end plate triangular in shape is not in one plane.Here it is contemplated that such plate structure, that is, each summit of triangular plate piece is positioned on the flexure plane.
In a kind of form of implementation of plate, in order to stablize distal radial fractures, particularly for the plate of palmar, the screwed hole in the plate is positioned at that side of leg-of-mutton bar dorsad portion, and is layout in the arc-shaped.
The bar portion of radius plates can be configured to girdling type.In the zone between the larger-diameter screwed hole that this structure with a tight waist preferably links to each other at above-mentioned slotted hole with it.
In a kind of form of implementation of the present invention, the aperture of the screwed hole in the far-end plate select than the little pact of diameter of the screw hole in the bar portion of plate half.
Particularly in the radius plates form of implementation of Y shape structure, Y shape limit lower limb and/or the lateral surfaces piece that is positioned on the lower limb end of limit design to such an extent that can readjust easily.
Above-mentioned Y font is compared with traditional plate when being used for dorsal part and is brought such benefit,, needn't remove tuberosity Li Siteli (listeri) that is, therefore can reduce operation wound.
Many splintered fractures of Cun Zaiing particularly can very well be fixed by the stable screw of selected angle in some cases, and the diameter of described screw is essentially 2mm.For example adopt 4 to 8 especially 5 or 6 screws that on shank of screw, have the cortex screw thread.
Plate itself is made by known implant material, particularly implants steel or titanium or titanium alloy.
Description of drawings
Also present invention will be described in detail with reference to the accompanying by means of embodiment below.
Accompanying drawing is represented:
The different views of Fig. 1 radius plates is the lower limb district, limit of sealing in the far-end plate at palmar;
The different views of the radius plates of Fig. 2 and Fig. 3 Y font is to form open section here in far-end plate zone.
The specific embodiment
As seen in Fig., the distal radial hone lamella has an elongated stem 1 respectively, and this bar portion has the combined structure of screw hole 2 and slotted hole 3, and described screw hole has or do not have the screwed hole of taper.In the transition region between slotted hole 3 and follow-up screw hole 2, there is the depression 4 of a symmetric form with a tight waist in the bar portion.
In the transition region of far-end plate 5, a bending 6 is set in bar portion 1, thereby has formed desirable and the corresponding basic structure of anatomical conditions.
As seen in Fig., the cross section of bar portion 1 arches upward, and helps to make periosteum to avoid twinge (stimulation) like this.
In pressing the form of implementation of Fig. 1, be based on the non-equilateral triangle moulding of plate 5.
That side that is the limit 8 of leg-of-mutton bar dorsad portion 1 have the conical screw hole 9 of many diameters less than the diameter of the screw hole in the bar portion 12.
Approximate being positioned on the circular arc line of the distribution than the minor diameter bellmouth in far-end plate 5.
The porous screw thread longitudinal axis of being permitted in the plate 5 becomes different angle [alpha] with plate, and wherein α has non-90 ° value.The hole of being furnished with figure notation 1 to 6 has the angle value in 60 ° to 89 ° scopes that provides in the drawings.
By the end-view of the plate of the far-end plate that can see having of Fig. 1, can know and see that this each summit that is similar to leg-of-mutton plate but is positioned at a flexure plane that is complementary with anatomical conditions not in a plane.Diagram by the screw thread of Fig. 1 relates to many screwed holes in far-end plate 5, wherein, by the version of taper, can obtain necessary angle stability when the screw that has the screw thread that matches on head of screw is screwed into.
In the radius plates of pressing Fig. 2 and 3, bar portion 1 has been equipped with conical screw hole and slotted hole 3 and girdling type depression 4 equally.But the basic configuration of this plate is equivalent to the Y font.
That is to say that side of leg-of-mutton bar dorsad portion 1 has a discontinuities or vacancy face.
Have a lateral surfaces piece 11 respectively on each bar limit of the plate 10 that constitutes the Y font jointly, wherein as shown in Figure 2, each lateral surfaces piece 11 has different length or width.
According to the diagram of pressing Fig. 2, the longitudinal axis of each lateral surfaces piece 11 or is equivalent to a circular arc by Fig. 3 mutually at angle approx.
Press the side view of the Y shape plate 10 of Fig. 2, as can be seen the bending moulding that adapts with anatomy of two of Y shape plate 10 finger-like limit lower limbs.Here also to have mainly be uneven that is mutual angled orientation to the longitudinal axis of each screwed hole.The moulding of Y shape plate 10 makes and can carry out readjusting slightly according to the situation of the fracture fragments of classification of fracture or existence.
In addition, the Y font has brought such advantage,, needn't remove the tuberosity Li Siteli (listeri) that is rendered as the skeleton projection when being used for dorsal part that is.
In form of implementation of the present invention, not only can be in bar portion 1 zone but also can be in the distal portions 5 of plate, that is near the seam of joint, obtain the stable screw of a kind of angle and connect.Particularly many splintered fractures can very well be fixed by the stable screw of angle of selecting diameter to be essentially 2mm in the distal plate district.Form of implementation by the radius plates of Fig. 2 is based on a kind of asymmetrical Y shape plate structure, and wherein short limit lower limb of preferred plate 10 is towards 1 skew of bar portion.
On meaning of the present invention, the length of lateral surfaces piece 11 and respectively processing quantity thereon than the bellmouth 9 of minor diameter be variable.
Sheet metal thickness wherein adopts and implants steel, titanium or titanium alloy as raw material in the scope of 1mm to 3mm basically.
The Reference numeral table
1 bar section
Screw hole in the 2 bar sections
3 slotted holes
4 girdling types depression
5 distal plate
6 bendings
7 bar portions arch upward
That side of the portion of bar dorsad of 8 plates
9 bellmouths than minor diameter
10 Y shape plates
11 lateral surfaces pieces
Claims (12)
1. be used for stablizing the plate of distal radial fractures, comprise an elongated stem and the plate by the preformed far-end of anatomy that is connected in this bar portion, wherein, the envelope of plate has triangular shaped; Also comprise and be arranged on neutralize circular hole in the plate of described far-end of bar portion, these circular holes have the screwed hole that is threaded longitudinal axis of tapered structure, each screw thread longitudinal axis distributes in the plate of far-end not parallelly, and, between bar portion and plate, form a bending, it is characterized by: the triangular shaped or corresponding envelope of described plate is unequal-sided, wherein, that side of this leg-of-mutton bar dorsad portion has the screwed hole of a plurality of tapers, the aperture of these screwed holes is selected less than the diameter of screwed hole in the bar portion or screw hole, and the screw thread longitudinal axis of the described a plurality of screwed holes in the plate becomes one to be not equal to 90 ° angle with bar portion surface.
2. by the described plate of claim 1, it is characterized by: in bar portion, additionally construct a slotted hole.
3. by claim 1 or 2 described plates, it is characterized by: the cross section of bar portion has and arches upward.
4. by claim 1 or 2 described plates, it is characterized by: each summit of triangular plate piece is not in a plane.
5. by the described plate of claim 4, it is characterized by: each summit of triangular plate piece is positioned on the flexure plane.
6. by claim 1 or 2 described plates, it is characterized by: each screwed hole on that side of leg-of-mutton bar dorsad portion is distributed on the circular arc.
7. by claim 1 or 2 described plates, it is characterized by: that side of leg-of-mutton bar dorsad portion has a discontinuities or vacancy face, and its king-rod portion and plate form a Y font.
8. by the described plate of claim 7, it is characterized by: establish a lateral surfaces piece on each bar limit of the plate that constitutes the Y font jointly, this lateral surfaces piece comprises at least two screwed holes respectively.
9. by the described plate of claim 8, it is characterized by: each lateral surfaces piece has different length.
10. by claim 8 or 9 described plates, it is characterized by: the longitudinal axis of each lateral surfaces piece distributes mutually at angle.
11. by claim 1 or 2 described plates, it is characterized by: described bar cage structure becomes girdling type.
12. by claim 1 or 2 described plates, it is characterized by: the aperture of the screwed hole in the described plate is chosen as more half as large than the diameter of the screw hole in the bar portion of plate.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10351501 | 2003-11-05 | ||
| DE10351501.1 | 2003-11-05 | ||
| DE10356904.9 | 2003-12-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1893885A CN1893885A (en) | 2007-01-10 |
| CN100506180C true CN100506180C (en) | 2009-07-01 |
Family
ID=34876973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800375191A Expired - Fee Related CN100506180C (en) | 2003-11-05 | 2004-11-02 | Plate used to stabilize distal radius fractures |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100506180C (en) |
| DE (1) | DE10356904B4 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2509524B1 (en) | 2009-12-11 | 2014-02-26 | Synthes GmbH | Mandibular fixation plate |
| US20110218580A1 (en) | 2010-03-08 | 2011-09-08 | Stryker Trauma Sa | Bone fixation system with curved profile threads |
| DE102010038949B4 (en) | 2010-08-05 | 2018-01-04 | Dieter Marquardt Medizintechnik Gmbh | osteosynthesis |
| DE102010042930A1 (en) | 2010-10-26 | 2012-04-26 | Dieter Marquardt Medizintechnik Gmbh | Osteosynthesis device for fixation of bone, has aligning sleeve screwed into ridge, lip, edge, threaded lip, threaded bar, threaded edge or threaded hole of bone plate, and bone screw comprising head that is provided in aligning sleeve |
| CN103054641B (en) * | 2013-02-01 | 2015-04-01 | 上海市嘉定区南翔医院 | Distal radius fracture fastener with angle correcting structure |
| CN105167832A (en) * | 2015-08-12 | 2015-12-23 | 常州健力邦德医疗器械有限公司 | Distal claw type locking bone fracture plate for radii |
| CN106691634B (en) * | 2016-11-18 | 2018-05-15 | 徐永清 | A kind of wrist joint prosthese with titanium alloy lockplate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2292527Y (en) * | 1996-07-23 | 1998-09-30 | 洪守林 | Compression plate and screw for lower end of radius |
| DE10125092A1 (en) * | 2001-05-23 | 2001-12-06 | Miho Nicoloff | Osteosynthesis plate has two Y-shaped arms of different length/ |
| EP0723764B1 (en) * | 1995-01-27 | 2002-05-02 | Robert J. Medoff | Pin plate |
| CN2522041Y (en) * | 2000-11-26 | 2002-11-27 | 祝桂涛 | Eccentric whole-nail internal-fixing bone-setting plate for radius far-end fracture |
| DE20309361U1 (en) * | 2003-04-11 | 2003-09-18 | Koenigsee Implantate & Instr | Osteosynthesis, especially an angle-stable radius plate, for the surgical treatment of bone fractures |
| US6623486B1 (en) * | 1999-09-13 | 2003-09-23 | Synthes (U.S.A.) | bone plating system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6440135B2 (en) * | 2000-02-01 | 2002-08-27 | Hand Innovations, Inc. | Volar fixation system with articulating stabilization pegs |
| US6283969B1 (en) * | 2000-03-10 | 2001-09-04 | Wright Medical Technology, Inc. | Bone plating system |
-
2003
- 2003-12-05 DE DE10356904A patent/DE10356904B4/en not_active Expired - Fee Related
-
2004
- 2004-11-02 CN CNB2004800375191A patent/CN100506180C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0723764B1 (en) * | 1995-01-27 | 2002-05-02 | Robert J. Medoff | Pin plate |
| CN2292527Y (en) * | 1996-07-23 | 1998-09-30 | 洪守林 | Compression plate and screw for lower end of radius |
| US6623486B1 (en) * | 1999-09-13 | 2003-09-23 | Synthes (U.S.A.) | bone plating system |
| CN2522041Y (en) * | 2000-11-26 | 2002-11-27 | 祝桂涛 | Eccentric whole-nail internal-fixing bone-setting plate for radius far-end fracture |
| DE10125092A1 (en) * | 2001-05-23 | 2001-12-06 | Miho Nicoloff | Osteosynthesis plate has two Y-shaped arms of different length/ |
| DE20309361U1 (en) * | 2003-04-11 | 2003-09-18 | Koenigsee Implantate & Instr | Osteosynthesis, especially an angle-stable radius plate, for the surgical treatment of bone fractures |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10356904B4 (en) | 2006-05-11 |
| CN1893885A (en) | 2007-01-10 |
| DE10356904A1 (en) | 2005-09-22 |
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