CN103750889B - Fracture of the tibial plateau accurate support resetting means - Google Patents
Fracture of the tibial plateau accurate support resetting means Download PDFInfo
- Publication number
- CN103750889B CN103750889B CN201410054791.6A CN201410054791A CN103750889B CN 103750889 B CN103750889 B CN 103750889B CN 201410054791 A CN201410054791 A CN 201410054791A CN 103750889 B CN103750889 B CN 103750889B
- Authority
- CN
- China
- Prior art keywords
- trocar sheath
- support
- connects
- support bar
- tightly
- 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.)
- Active
Links
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
-
- 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
- A61B2017/564—Methods for bone or joint treatment
Abstract
The present invention relates to fracture of the tibial plateau accurate support resetting means.The present invention is the top that trocar sheath is positioned at lower trocar sheath, its sidewall there is square groove, circular trough, circular trough connects weave control knob, square groove is on support bar swaying direction, circular trough on lower outside sleeve side walls connects rotary control knob, square groove connects vertical dilator, the umbrella shape top of support umbrella arranges groove, support umbrella connects support bar, support bar lower end is in trocar sheath, be positioned at the below of support bar, vertically hold device tightly in trocar sheath and be the annular of an open loop, weave control knob tip contact vertically holds device tightly, it is groove that device waist is held in rotation tightly, the medial wall of upper end and trocar sheath casts closes, rotary control knob tip contact connects the waist groove rotating and hold device tightly.Instant invention overcomes cannot the defect of parking position accuracy.The present invention is easy and simple to handle, can carry out precise quantification reset to the articular surface that subsides, and volume is little, cost is low, maintenance and change convenient.
Description
Technical field
The present invention relates to the accurate support resetting means for auxiliary fracture of the tibial plateau operative reduction, particularly fracture of the tibial plateau accurate support resetting means.
Background technology
Fracture of the tibial plateau is the fracture of having involved proximal tibia articular surface, it is often by vertical and inside and outsidely turn over violence and cause, displacement fracture shows as articular step-off and/or articular surface splitting more, during operative treatment, particularly difficult with the reset of articular step-off, this is also affect one of most important factor of patient's prognosis.
Before making the present invention, adopt easy top rod or osteotome to the reset of the articular surface that subsides in operation more, its defect comprises: the personal experience 1. depending on operative doctor during operation, rough judgement can only be carried out to the position of articular step-off, the direction subsided and the degree etc. of subsiding, often cannot parking position accuracy; 2. the instrument such as top rod or osteotome lacks suitable contact surface, cannot provide good mechanical support when articular surface resets; 3. lack quantification means when resetting, the accurate reset of the articular surface that cannot realize subsiding, needs the repeated multiple times x-ray fluoroscopy that carries out could determine the satisfaction that articular surface resets in art.
Summary of the invention
Object of the present invention is just to overcome above-mentioned defect, development fracture of the tibial plateau accurate support resetting means.
Technical scheme of the present invention is:
Fracture of the tibial plateau accurate support resetting means, its technical characteristics is that trocar sheath is positioned at the top of lower trocar sheath, trocar sheath sidewall there is square groove, circular trough, circular trough connects weave control knob, square groove is on support bar swaying direction, lower outside sleeve side walls there is square groove, circular trough, circular trough connects rotary control knob, square groove connects vertical dilator, the umbrella shape top of support umbrella arranges groove, support umbrella connects support bar, support bar lower end is in trocar sheath, vertically hold device tightly in trocar sheath, be positioned at the below of support bar, it is the annular of an open loop, weave control knob tip contact vertically holds device tightly, it is groove that device waist is held in rotation tightly, the medial wall of upper end and trocar sheath casts closes, rotary control knob tip contact connects the waist groove rotating and hold device tightly.
Described device of vertically holding tightly is the little cup-like structure in the mouth large end, and outer right wall is slope.
Square groove on described trocar sheath sidewall contacts connection when support bar turns to level.
On described trocar sheath sidewall, square groove is for inserting the tip of vertical dilator.
Advantage of the present invention and effect are: reset easy and simple to handle, can carry out precise quantification to the articular surface that subsides, and volume is little, cost is low, and maintenance and replacing are conveniently.
Accompanying drawing explanation
Fig. 1---structural principle schematic diagram of the present invention.
Fig. 2---the structural principle stereo dissected figure of three-dimensional support platform in the present invention.
Fig. 3---the structural principle schematic diagram of support umbrella in the present invention.
Fig. 4---the present invention skeletal fixation support is fixed on fracture with operation chart during skeleton far away.
Fig. 5---the present invention is in the operation chart of support umbrella, three-dimensional support platform and skeletal fixation bracket assembled being got up.
Fig. 6---the present invention use three-dimensional support platform locate subside articular surface time operation chart.
Operation chart when vertical dilator is inserted between three-dimensional support platform and skeletal fixation support by Fig. 7---the present invention.
The operation chart of Fig. 8---the present invention when using vertical dilator to carry out the reduction of the fracture.
In figure, each symbol represents that parts are as follows:
Screw needle 1, upper screw needle 2, skeletal fixation support 3, rotary control knob 4, trocar sheath 5, support umbrella 6, support bar 7, weave control knob 8, lower trocar sheath 9, shank chuck 10, lower needle bar chuck 11, vertically hold device 12 tightly, rotate and hold device 13, umbrella shape top 14, groove 15, threaded rod 16, vertical dilator 17 tightly.
Detailed description of the invention
The technology of the present invention thinking is:
By skeletal fixation support, whole device is fixed on fracture of the tibial plateau with on skeleton far away, according to preoperative imaging data (X-ray film and CT) accurately anticipation to subside the position of articular surface and degree of subsiding, correspondingly reconcile three-dimensional support platform, make it aim at the position of articular step-off, finally by vertical dilator, support is carried out to the articular surface that subsides and reset.
Illustrate below, as shown in Figure 1, Figure 2, Figure 3 shows:
The present invention is made up of three-dimensional support platform, vertical dilator and skeletal fixation support three part, wherein three-dimensional support platform by support umbrella 6, support bar 7, trocar sheath 5, lower trocar sheath 9, rotary control knob 4, weave control knob 8, vertically hold device 12 and rotation tightly and hold device 13 tightly and form.Trocar sheath 5 (overall diameter 20mm) is positioned at the top of lower trocar sheath 9 (overall diameter 20mm), and both form the outer wall of three-dimensional support platform jointly; The interior diameter of the proximal openings of trocar sheath 5 is 14mm, the interior diameter of distal openings is 16mm, its sidewall has two grooves, is respectively square groove that width is 6mm and diameter is the circular trough of 3mm, wherein circular trough connects weave control knob 8, and square groove then allows support bar 7 to be rocked to horizontal level; The lower proximal openings of trocar sheath 9 and the interior diameter of distal openings are 16mm, its sidewall there are two grooves, be respectively square groove that width is 10mm and diameter is the circular trough of 3mm, wherein circular trough connects rotary control knob 4, and square groove then allows the insertion of vertical dilator 17 tip; The umbrella shape top 14 of support umbrella 6 is provided with groove 15, and in this example, annular arranges 4, and the threaded rod 16 of support umbrella 6 connects support bar 7; Support bar 7 near-end is round bar shape (overall diameter 5mm), inside there is screw thread for being screwed into the threaded rod 16 of support umbrella 6, far-end is spherical (overall diameter 16mm), be arranged in trocar sheath 5, hold device 12 tightly with vertical and rotate the internal structure of holding device 13 tightly and jointly forming three-dimensional support platform, interior diameter (14mm) because of trocar sheath 5 proximal openings is less than the overall diameter (16mm) of support bar 7 far-end spherical part, therefore support bar 7 can not be deviate from from trocar sheath 5 near-end; Vertically hold the below that device 12 is positioned at support bar 7 tightly, it is the cirque structure (overall diameter 16mm) of front side wall fluting, be the annular of an open loop, deformation can be there is during its lateral condensation, its section is the little cup-like structure in the mouth large end, outer right wall is ramp designs, and when being screwed into weave control knob 8 by the circular trough of trocar sheath 5 lateral wall, the latter can push the ramp type outer wall vertically holding device 12 tightly from side; Rotating the profile of holding device 13 tightly is drum shape, on it, end disc and lower end disc overall diameter are 16mm, the width of waist groove is 3mm, the overall diameter of waist disk is 8mm, the medial wall of upper end disc and trocar sheath 5 casts closes, when being screwed into rotary control knob 4 by the circular trough of lower trocar sheath 9 lateral wall, rotary control knob 4 pushes the waist groove rotating and hold device 13 tightly from side.
Vertical dilator 17 designs for tong-like, and the screw flight spacing at its handle place is 2mm, and turn around when pressurizing nut revolves, namely handle struts 2mm, and the tip of vertical dilator 9 then struts 1mm.
Skeletal fixation support 3 is round bar shape, and cast conjunction by the round bar of three sections of different-diameters and form, its epimere round bar overall diameter is 16mm, and stage casing round bar overall diameter is 20mm, and hypomere round bar overall diameter is 5mm.
Application process of the present invention illustrates:
First, screw needle 1 (overall diameter is 3mm) and upper screw needle 2 (overall diameter is 3mm) are fixed on the tibial shaft of fracture of the tibial plateau far-end, then shank chuck 10 and lower needle bar chuck 11 is utilized to be connected to by skeletal fixation support 3 on screw needle 1 and upper screw needle 2, the nut on shank chuck 10 and lower needle bar chuck 11 is screwed with spanner, skeletal fixation support 3 can be fixed on screw needle 1 and upper screw needle 2, as shown in Figure 4;
Second step, is enclosed within the lower trocar sheath 9 of three-dimensional support platform on skeletal fixation support 3, then is screwed in by support umbrella 6 on the near-end of support bar 7, as shown in Figure 5;
Regulate the pendulum angle of support bar 7, regulate trocar sheath 5 relative to the anglec of rotation of lower trocar sheath 9 simultaneously, support umbrella 6 is positioned at immediately below the articular surface that subsides.Tighten weave control knob 8, it pushes the ramp type outer wall vertically holding device 12 tightly from side, make vertically to hold device 12 upward sliding tightly, vertically hold device generation deformation tightly simultaneously, the diameter of its proximal annular rim opening diminishes, thus hold tightly mutually with the far-end spherical structure of support bar 7, play the effect of fixed support bar 7 pendulum angle.Tighten rotary control knob 4, its waist groove holding device 13 tightly with rotation is held tightly, closes, therefore play the effect of fixed jacket pipe 5 relative to the anglec of rotation of lower trocar sheath 9 because the medial wall rotating the upper end disc and trocar sheath 5 of holding device 13 tightly casts.As shown in Figure 6;
The tip of vertical dilator 9 is inserted in the square groove of lower trocar sheath 9 sidewall, as shown in Figure 7;
Finally, by the pressurizing nut on the handle of rotational vertical dilator 17, make vertically to strut between three-dimensional support platform and skeletal fixation support 3, thus make articular surface acquisition support reset of subsiding, by the number of turns that nut rotates, realize quantizing raising of articular surface, as shown in Figure 8.
Claims (2)
1. fracture of the tibial plateau accurate support resetting means, it is characterized in that trocar sheath is positioned at the top of lower trocar sheath, trocar sheath sidewall there is square groove, circular trough, circular trough on trocar sheath sidewall connects weave control knob, square groove on trocar sheath sidewall is on support bar swaying direction, lower outside sleeve side walls there is square groove, circular trough, circular trough on lower outside sleeve side walls connects rotary control knob, square groove on lower outside sleeve side walls connects vertical dilator, the umbrella shape top of support umbrella arranges groove, support umbrella connects support bar, support bar lower end is in trocar sheath, vertically hold device tightly in trocar sheath, be positioned at the below of support bar, it is the annular of an open loop, weave control knob tip contact vertically holds device tightly, it is groove that device waist is held in rotation tightly, rotate the medial wall of holding device upper end and trocar sheath tightly to cast and close, rotary control knob tip contact connects the waist groove rotating and hold device tightly, square groove on trocar sheath sidewall contacts with described support bar when support bar turns to level and connects, vertically holding device tightly is the little cup-like structure in the mouth large end, outer right wall is slope.
2. fracture of the tibial plateau accurate support resetting means according to claim 1, is characterized in that square groove on lower outside sleeve side walls is for inserting the tip of vertical dilator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410054791.6A CN103750889B (en) | 2014-02-18 | 2014-02-18 | Fracture of the tibial plateau accurate support resetting means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410054791.6A CN103750889B (en) | 2014-02-18 | 2014-02-18 | Fracture of the tibial plateau accurate support resetting means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103750889A CN103750889A (en) | 2014-04-30 |
| CN103750889B true CN103750889B (en) | 2016-01-06 |
Family
ID=50518333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410054791.6A Active CN103750889B (en) | 2014-02-18 | 2014-02-18 | Fracture of the tibial plateau accurate support resetting means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103750889B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109009375A (en) * | 2018-08-06 | 2018-12-18 | 上海市第五人民医院 | The resetting apparatus and its application method of tibial plateau articular step-off fracture |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6123709A (en) * | 1997-07-25 | 2000-09-26 | Jones; Andrew R. | Bone buttress plate and method of using same |
| CN2759420Y (en) * | 2005-01-13 | 2006-02-22 | 徐恒雁 | Tibial plateau fracture localizer |
| CN101530356A (en) * | 2008-03-13 | 2009-09-16 | 隋圣敏 | Tibial plateau fracture repositor |
| CN203710111U (en) * | 2014-02-18 | 2014-07-16 | 南京大学医学院附属鼓楼医院 | Precise support resetting device for tibial plateau fracture |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8317842B2 (en) * | 2007-11-30 | 2012-11-27 | Biomet C.V. | Distal tibia plating system |
-
2014
- 2014-02-18 CN CN201410054791.6A patent/CN103750889B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6123709A (en) * | 1997-07-25 | 2000-09-26 | Jones; Andrew R. | Bone buttress plate and method of using same |
| CN2759420Y (en) * | 2005-01-13 | 2006-02-22 | 徐恒雁 | Tibial plateau fracture localizer |
| CN101530356A (en) * | 2008-03-13 | 2009-09-16 | 隋圣敏 | Tibial plateau fracture repositor |
| CN203710111U (en) * | 2014-02-18 | 2014-07-16 | 南京大学医学院附属鼓楼医院 | Precise support resetting device for tibial plateau fracture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103750889A (en) | 2014-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3115140A (en) | Apparatus for stereotaxic brain operations | |
| US11071556B2 (en) | Positioning guiding device and positioning method thereof for acetabulum reaming and acetabular cup prosthesis implantation | |
| JP2008537496A5 (en) | ||
| JP2009006066A (en) | Guide instrument for orthopedic surgery on bone part | |
| CN103750889B (en) | Fracture of the tibial plateau accurate support resetting means | |
| CN204072040U (en) | A kind of Medical mouth opening device | |
| CN203252734U (en) | Three-point fixing type brain stereotactic surgical system | |
| CN208223485U (en) | A kind of portable surveying and mapping tool | |
| CN203710111U (en) | Precise support resetting device for tibial plateau fracture | |
| CN208926374U (en) | A kind of acetabular bone measuring device | |
| CN204033544U (en) | A kind of Height Adjustable combined titanium cage | |
| US3047957A (en) | Sternoclavicular joint measuring instrument | |
| RU181517U1 (en) | IMPACTOR FOR INTRODUCING A DEVICE WITH AN INCREASING HEIGHT FOR REPLACEMENT OF THE INTERDEPINAL DISK IN THE LUMBAR SPINE | |
| CN207323536U (en) | A kind of 3D printing percutaneous cervical arc root guide plate | |
| CN211271104U (en) | Broken nail extractor for trauma orthopedics | |
| CN209136711U (en) | A kind of Via Posterior Spinal Approach Minimally Invasive Surgery tool | |
| CN108354697A (en) | A kind of acetabular bone measuring scale | |
| CN201353185Y (en) | Vagina expansion locator | |
| CN205849455U (en) | A kind of measuring device for measuring ophthalmologic operation incision length | |
| CN203777146U (en) | Otoscope | |
| CN203970620U (en) | A kind of hip joint measurement chi | |
| CN208926555U (en) | A kind of external fixator for orthopedics dep adjusting rod | |
| CN207627429U (en) | A kind of measuring device of oral cavity opening degree | |
| CN208625673U (en) | The probe plug of tape light | |
| CN103976783B (en) | Disposable fracture reduction tractor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |