CN107510500A - Anatomical form pubic symphysis locking steel plate - Google Patents
Anatomical form pubic symphysis locking steel plate Download PDFInfo
- Publication number
- CN107510500A CN107510500A CN201710812378.5A CN201710812378A CN107510500A CN 107510500 A CN107510500 A CN 107510500A CN 201710812378 A CN201710812378 A CN 201710812378A CN 107510500 A CN107510500 A CN 107510500A
- Authority
- CN
- China
- Prior art keywords
- plate
- pubic symphysis
- locking
- steel plate
- anatomical form
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
-
- 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
- A61B17/808—Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms
Abstract
The present invention provides a kind of anatomical form pubic symphysis locking steel plate, and its plate body being structure as a whole, the cross section of plate body is in curved arc shape, has an inner concave and an arcuate surface；The upside of the plate face of the plate body is respectively provided with four locking screws with downside, and the axis of locking screw opposing upper and lower is arranged in spatial intersecting.Four pieces of lock screws of this anatomical form pubic symphysis locking steel plate are designed by amechanical angle, it is individually fixed in the most fine and close position of pubic symphysis both sides sclerotin, more preferable bone hold and stability can be provided, by mechanical test and finite element analysis, better than traditional biplane reconstruction plate fixed form, compared with traditional double eight word general steel plate fixed forms, there is higher anti-rotation performance.The present invention is formed for one block of steel using numerically controlled lathe machining, is designed for anatomical form, is attached at pubic symphysis surface, is not required to pre-bending, do not influence armor plate strength.
Description
Technical field
The present invention relates to a kind of anatomical form pubic symphysis locking steel plate, for using Si Tuopa (Stoppa) approach, cuts
When reduction therapy Pubic symphysis diastasis and pubic symphysis region are fractured, pubic symphysis inner surface and upper surface are placed in, reaches solution
Cut open reset, Titanic micro-plates therapeutic purposes device.
Background technology
At present, it is larger for treatment Pubic symphysis diastasis and pubic symphysis region displacement fracture in Campbell performs the operation and learned
Patient when, at present using the device of two pieces of common four holes or five hole reconstruction plates, it is to rebuild steel by two pieces that it, which forms (method),
Plate is placed in pubic symphysis inner surface and upper surface in an angle of 90 degrees, and weak point (shortcoming) is to need multiple bending plastotype in art,
Fixing intensity is poor, and mechanical load is concentrated, and fixation is unreliable, easily occurs loosening fracture.
The content of the invention
The present invention provides a kind of anatomical form pubic symphysis locking steel plate, and the purpose is to overcome existing two blocks of reconstruction steel of application
The disadvantages mentioned above of plate angulation technique for fixing.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of anatomical form pubic symphysis locking steel plate, it is characterised in that：Its plate body being structure as a whole, the cross section of plate body
In curved arc shape, there is an inner concave and an arcuate surface；The upside of the plate face of the plate body is respectively provided with four lockings with downside
Screw, the axis of locking screw opposing upper and lower are arranged in spatial intersecting.
Described anatomical form pubic symphysis locking steel plate, wherein：The plate face is made up of left plate, right panel and connecting plate, institute
State that left plate is symmetrical with right panel, the width of the connecting plate is less than the width of left plate and right panel, and be connected to left plate with
Between right panel.
Described anatomical form pubic symphysis locking steel plate, wherein：Recess is left on the upside of the connecting plate, makes the plate face
In " C " font.
Described anatomical form pubic symphysis locking steel plate, wherein：The upper side and lower side of the left plate and the right panel
The upper side and lower side is equipped with two locking screws.
Described anatomical form pubic symphysis locking steel plate, wherein：The locking screw is by the evagination towards described interior
Concave surface is in gradually-reducing shape.
Described anatomical form pubic symphysis locking steel plate, wherein：The axis of locking screw opposing upper and lower is in spatial intersecting
It is arranged vertically.
Compared with prior art, the invention has the advantages that：
1. four pieces of lock screws of this anatomical form pubic symphysis locking steel plate are designed by amechanical angle, pubis is individually fixed in
The most fine and close position of joint both sides sclerotin, more preferable bone hold and stability can be provided, by mechanical test and finite element fraction
Analysis, the result drawn are an advantage over traditional biplane reconstruction plate fixed form.
2. this anatomical form pubic symphysis locking steel plate uses three dimensional designs, common with traditional double eight words through mechanical test
Interal fixation mode is compared, and has higher anti-rotation performance.
3, this anatomical form pubic symphysis locking steel plate is that one block of steel is formed using numerically controlled lathe machining, is anatomical form
Design, is attached at pubic symphysis surface, is not required to pre-bending, do not influence armor plate strength, traditional two pieces of reconstruction plates for being mutually 90 degree
Needed in fixed form to steel plate bending, influence fixing intensity.
4. the locking screw of this anatomical form pubic symphysis locking steel plate passes through CAD, it is ensured that all locking spiral shells
Nail will not be driven into the joint space of pubic symphysis.
5. this anatomical form pubic symphysis locking steel plate small volume, thickness is thicker (3mm), is easy to lay, and can provide compared with
Good mechanical strength.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of anatomical form pubic symphysis locking steel plate provided by the invention；
Fig. 2 is the disconnection schematic diagram after being splitted along Fig. 1 line A-A；
Fig. 3, Fig. 4 are the stereochemical structure signals in other directions of anatomical form pubic symphysis locking steel plate provided by the invention
Figure；
Fig. 5 is locked out the partial sectional view of screw.
Description of reference numerals：Left plate 1；Right panel 2；Connecting plate 3；Lock screw 4；Inner concave A；Arcuate surface B.
Embodiment
The technical scheme is that according to the anatomic morphological feature of pubic joint parts, treatment pubic symphysis is devised
Separation and the anatomical form pubic symphysis locking steel plate of pubic symphysis region fracture.
The fracture dislocation of pubic symphysis is mostly due to caused by larger violence, and the stability of front ring is destroyed, and is applied to
The necessary Stability Analysis of Structures of the local steel plate of pubic symphysis, anatomic form is good, and profile meets pubic symphysis physiological structure, has simultaneously
Anti-torsion ability is strong, lays the features such as fixation simple to operate is reliable.
Anatomical form pubic symphysis locking steel plate provided by the invention, it is to apply three-D CT scanning, by measuring normal adult
A kind of dicom data (form of three-dimensional reconstruction CT data outputs) of people's pelvis, according to the pelvis data of measurement, are set by 3D printing
Meter, is formed according to the structure and form Design in pelvis pubic symphysis region.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, it is a kind of anatomical form pubic symphysis locking steel plate provided by the invention, it is one
The plate body of body structure, the plate face size of plate body is 20*45mm；
As shown in figure 1, the plate face is made up of left plate 1, right panel 2 and connecting plate 3, the left plate 1 is right in left and right with right panel 2
Claim, the width of the connecting plate 3 is less than the width of left plate 1 and right panel 2, and is connected between left plate 1 and right panel 2；In this reality
Apply in example, recess 31 is left in the upside of the connecting plate 3, and it is in " C " font to make the plate face；
As shown in Fig. 2 the cross section of the plate body is in curved arc shape, there is an an inner concave A and arcuate surface B；
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, the upper side and lower side of the left plate 1 and the upside of the right panel 2 and
Downside be equipped with two locking screws 4, it is described locking screw 4 by the arcuate surface B to the inner concave A be in gradually-reducing shape, with
Fixed for lock screw.Moreover, the axis of locking screw 4 opposing upper and lower is arranged in spatial intersecting, in case lock screw occurs
Interference, in preferred embodiment, the axis of locking screw 4 opposing upper and lower is arranged vertically in spatial intersecting, is detected through mechanics
And finite element analysis, such arrangement have optimal mechanics effect.
The anatomical form pubic symphysis locking steel plate also presses anatomic form, depression and protuberance is designed with, for laying steel
Determine to be placed at rectus aabdominis stop during plate and use, it is ensured that steel plate is positioned at the center of pubic symphysis joint, it is ensured that all lockings
Screw is driven into the best position of superior ramus of pubis sclerotin.
When the present invention uses, for the patient of pubic symphysis fracture dislocation, after patient's state of an illness is steady, after injury
3-5 day row pelvic fracture internal fixation operation of cutting and resetting, according to fracture concrete position operative approach, generally select Si Tuopa
(Stoppa) approach+iliac fossa approach, first by the reduction of the fracture, have an X-rayed lower confirmation and reset well, fixed, will be locked temporarily using Kirschner wire
The inner concave A fittings for determining steel plate are placed in pubic symphysis surface and (pubic symphysis inner surface, indent are fitted on the upside of inner concave A
Pubic symphysis upper surface is fitted on the downside of the A of face), squeeze into guide pin along centre bore and fix temporarily, perspective determines steel plate position again
Lay it is errorless after, drilled, depth measurement, according to measurement length sequences selection screw, beaten successively along locking guider sleeve using electric drill
Enter eight pieces of lock screws.Fluoroscopic examination steel plate and screw riding position are appropriate again.Layer-by-layer suture otch.
Anatomical form pubic symphysis locking steel plate provided by the invention and 90 degree of arranged orthogonals, the two blocks of reconstruction steel applied at present
Plate plate, which is compared, has advantages below：
1. four pieces of lock screws of this anatomical form pubic symphysis locking steel plate are designed by amechanical angle, pubis is individually fixed in
The most fine and close position of joint both sides sclerotin, more preferable bone hold and stability can be provided, by mechanical test and finite element fraction
Analysis, the result drawn are an advantage over traditional biplane reconstruction plate fixed form.
2. this anatomical form pubic symphysis locking steel plate uses three dimensional designs, common with traditional double eight words through mechanical test
Interal fixation mode is compared, and has higher anti-rotation performance.
3, this anatomical form pubic symphysis locking steel plate is that one block of steel is formed using numerically controlled lathe machining, is anatomical form
Design, is attached at pubic symphysis surface, is not required to pre-bending, do not influence armor plate strength, traditional two pieces of reconstruction plates for being mutually 90 degree
Needed in fixed form to steel plate bending, influence fixing intensity.
4. the locking screw 4 of this anatomical form pubic symphysis locking steel plate passes through CAD, it is ensured that all lockings
Screw will not be driven into the joint space of pubic symphysis.
5. this anatomical form pubic symphysis locking steel plate small volume, thickness is thicker, is easy to lay, and and can provides preferable power
Learn intensity.
6. even if a few patients are due to anatomical variation so that steel plate can not attach completely, the locking of this anatomical form pubic symphysis
Steel plate has angle stability, stills provide enough intensity, and general steel plate is not easy to attach in the patient of anatomical variation, Yi
Produce and shifting in fixation procedure, influence therapeutic effect, this anatomical form pubic symphysis locking steel plate has obvious advantage.
Claims (6)
- A kind of 1. anatomical form pubic symphysis locking steel plate, it is characterised in that：Its plate body being structure as a whole, the cross section of plate body are in Curved arc shape, there is an inner concave and an arcuate surface；The upside of the plate face of the plate body is respectively provided with four locking spiral shells with downside Hole, the axis of locking screw opposing upper and lower are arranged in spatial intersecting.
- 2. anatomical form pubic symphysis locking steel plate according to claim 1, it is characterised in that：The plate face is by left plate, the right side Plate forms with connecting plate, and the left plate and right panel are symmetrical, and the width of the connecting plate is less than the width of left plate and right panel, And it is connected between left plate and right panel.
- 3. anatomical form pubic symphysis locking steel plate according to claim 2, it is characterised in that：Stayed on the upside of the connecting plate There is recess, it is in " C " font to make the plate face.
- 4. anatomical form pubic symphysis locking steel plate according to claim 2, it is characterised in that：The upside of the left plate is with Side and the upper side and lower side of the right panel are equipped with two locking screws.
- 5. the anatomical form pubic symphysis locking steel plate according to claim 1 or 4, it is characterised in that：The locking screw is equal By the evagination towards the inner concave be in gradually-reducing shape.
- 6. anatomical form pubic symphysis locking steel plate according to claim 1, it is characterised in that：Locking screw opposing upper and lower Axis be arranged vertically in spatial intersecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710812378.5A CN107510500A (en) | 2017-09-11 | 2017-09-11 | Anatomical form pubic symphysis locking steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710812378.5A CN107510500A (en) | 2017-09-11 | 2017-09-11 | Anatomical form pubic symphysis locking steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107510500A true CN107510500A (en) | 2017-12-26 |
Family
ID=60725131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710812378.5A Pending CN107510500A (en) | 2017-09-11 | 2017-09-11 | Anatomical form pubic symphysis locking steel plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107510500A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113520563A (en) * | 2021-07-22 | 2021-10-22 | 河北医科大学第三医院 | Pubis combined reduction plate and reduction assembly |
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|---|---|---|---|---|
| US4454876A (en) * | 1982-05-25 | 1984-06-19 | University Of Pittsburgh | Pelvic fixation plate and method of implanting same |
| CN2850538Y (en) * | 2005-12-01 | 2006-12-27 | 黄儒收 | Pubic symphysis fixing plate |
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| CN201409976Y (en) * | 2009-06-30 | 2010-02-24 | 山东省立医院 | Pubic symphysis biotype locking steel plate |
| US20100305618A1 (en) * | 2005-01-28 | 2010-12-02 | Orthohelix Surgical Designs, Inc. | Orthopedic plate |
| US20120184959A1 (en) * | 2010-03-10 | 2012-07-19 | Orthohelix Surgical Designs, Inc. | Wedge opening osteotomy plate |
| CN104188716A (en) * | 2014-07-10 | 2014-12-10 | 王钢 | Acetabulum parastyle and posterior column united steel plate |
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| CN208435765U (en) * | 2017-09-11 | 2019-01-29 | 哈尔滨医科大学 | Anatomical form pubic symphysis locking steel plate |
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2017
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| US20100305618A1 (en) * | 2005-01-28 | 2010-12-02 | Orthohelix Surgical Designs, Inc. | Orthopedic plate |
| CN2850538Y (en) * | 2005-12-01 | 2006-12-27 | 黄儒收 | Pubic symphysis fixing plate |
| CN201409976Y (en) * | 2009-06-30 | 2010-02-24 | 山东省立医院 | Pubic symphysis biotype locking steel plate |
| US20120184959A1 (en) * | 2010-03-10 | 2012-07-19 | Orthohelix Surgical Designs, Inc. | Wedge opening osteotomy plate |
| CN104188716A (en) * | 2014-07-10 | 2014-12-10 | 王钢 | Acetabulum parastyle and posterior column united steel plate |
| CN204814143U (en) * | 2015-07-16 | 2015-12-02 | 林旺 | Hook -like board of anatomical form sternoclavicular joint |
| CN105078559A (en) * | 2015-09-25 | 2015-11-25 | 李明 | General acetabulum back wall dissecting and locking bone plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113520563A (en) * | 2021-07-22 | 2021-10-22 | 河北医科大学第三医院 | Pubis combined reduction plate and reduction assembly |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171226 |
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| RJ01 | Rejection of invention patent application after publication |