CN202665683U - Guider for separation and fixation surgery of tibiofibular syndesmosis - Google Patents
Guider for separation and fixation surgery of tibiofibular syndesmosis Download PDFInfo
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- CN202665683U CN202665683U CN 201220303733 CN201220303733U CN202665683U CN 202665683 U CN202665683 U CN 202665683U CN 201220303733 CN201220303733 CN 201220303733 CN 201220303733 U CN201220303733 U CN 201220303733U CN 202665683 U CN202665683 U CN 202665683U
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Abstract
The utility model relates to a guider for separation and fixation surgery of tibiofibular syndesmosis. The guider is provided with a positioning plate (1), the lower part of the inner side of the positioning plate (1) is provided with a pit (4) which is matched with the surface of the outer ankle of human body, two guiding columns (2) are arranged on the outer side of the positioning plate (1) and the upper part of the pit (4), and the coaxial guiding holes (2-1) for implanting bone-fixing bolts are arranged in guider. The guider is characterized in that the position, corresponding to the pit (4), on the outer side of the positioning plate (1) is provided with a correction frame (3) comprising a vertical correction rod (3-1), and the axis of the vertical correction rod (3-1) is positioned in a longitudinal vertical bisecting surface of the positioning plate (1) and parallel to the positioning plate (1); and the two guiding columns (2) are symmetrical to the longitudinal vertical bisecting surface of the positioning plate (1), and the plane on which the axes of the two guiding columns (2) are positioned, is perpendicular to the positioning plate (1). As for the implantation of different bone-fixing bolts, a relatively accurate guiding effect can be achieved by using the guider provided by the utility model.
Description
Technical field
This utility model relates to a kind of surgical operating instrument, is specifically related to a kind of assistive device of lower tibiofibula combined separation fixing operation.
Background technology
It is to be connected the fine motion that belt body consists of with lower tibiofibula by the tibiofibula far-end to connect that lower tibiofibula is united, and is the important feature of keeping ankle stability.Wound causes tibiofibular syndesmotic injuries comparatively common clinically, and it is usually expressed as the lower tibiofibula combined separation.The effect of keeping the normal corresponding relation of ankle joint, the important anatomy structure of transmitting especially stress and regulating the fibula load proportion are not only played in the lower tibiofibula associating; The lower tibiofibula combined separation has affected heavy burden Stress Transfer and the regulatory mechanism of ankle joint, cause when bearing a heavy burden the astragalus increase of turning up, and cause normally the bear a heavy burden normal configuration in state and ankle cave of ankle joint to change, and then produce pain, chronic ankle is unstable and cause traumatic ankle arthritis.
At present, the open reduction internal fixation method that treatment lower tibiofibula combined separation adopts the AO tissue to recommend usually, i.e. 2～3cm more than naked joint is 25～35 ° of angles in forward outward by rear, and is parallel to that naked pass pitch plane is implanted 3.5mm or the 4.5mm os integumentale screw is fixed.But when operation, above-mentioned implantation direction is difficult to hold, and requires the patient to have certain surgical experience or need to operate under the monitoring of C arm, usually needs repeatedly to locate, the accurate pedicle screw of perspective repeatedly.
In order to solve the problems of the technologies described above, Jindan etc. are at " design and the Preliminary Clinical thereof of lower tibiofibula combined separation stationary digital guiding die plate " (Nanfang Medical Univ's journal, the 7th phase of the 29th volume in 2009) provides a kind of Digitalized guiding template in the literary composition, this guiding die plate obtains by the following method: at first CT scan is carried out in naked joint, the morphological data Input Software that obtains is carried out three-dimensional reconstruction; Then setting up virtual hold-down screw in software advances to follow closely passage; Then extract fibula configuration of surface anatomical structure and nail road model in software, set up locating guiding template, the surface of this locating guiding template and fibula configuration of surface are complementary, and are provided with and intend into pilot hole corresponding to nail direction; Make locating guiding template by rapid laser-shaping technique at last.During operation, locating guiding template is pressed on the fibula corresponding position, os integumentale screw is pressed the channeling direction of pilot hole and implanted.
Above-mentioned locating guiding template plays comparatively accurately guiding function to pedicle screw, but belongs to Individual design, and design process is too complicated.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of simple, as to have general applicability guider that is used for lower tibiofibula combined separation fixing operation of making.
This utility model solves this technical problem the technical scheme that adopts:
A kind of guider for lower tibiofibula combined separation fixing operation, it has a location-plate, the bottom of this location-plate inboard is provided with the recess that the surface with the outer ankle of human body is complementary, the outside is provided with lead on the top corresponding to described recess, be provided with the pilot hole of coaxial implantable bone hold-down screw in its body, it is characterized in that
The location-plate outside is provided with calibrated mount in the corresponding position of described recess, and this calibrated mount comprises a vertical calibrating stem, and its axis is positioned at the vertically vertical bisector plane and parallel with location-plate of location-plate;
Described lead is two and is symmetrical in the vertically vertical bisector plane of location-plate, and the plane at the two axis place is perpendicular to location-plate, and the angle of the two axis is 50 °～70 ° and meets at the inboard of location-plate;
Vertical distance between the centre of form of described recess and the two lead crossing point of axes is 2cm～3cm.
Guider for lower tibiofibula combined separation fixing operation described in the utility model, wherein, described calibrated mount also comprises a horizontal alignment bar, this horizontal alignment bar and described vertical calibrating stem intersect vertically.Increase by a horizontal alignment bar vertical with vertical calibrating stem, that is increase the reference of a calibration, so that the guide effect of guider of the present utility model is more accurate.
Guider for lower tibiofibula combined separation fixing operation described in the utility model wherein, is densely covered with projection on the surface of described location-plate outer upper.During operation, the patient pins the outside on location-plate top with hands, on the skin that location-plate is pressed on the fibula outside, above-mentioned projection is set can plays the effect that prevents guide plate slippage from hands.
Guider for lower tibiofibula combined separation fixing operation described in the utility model, because the bottom in the location-plate outside is provided with the calibrated mount that comprises vertical calibrating stem, therefore for different patients, as long as the recess of location-plate is matched with patient's outer ankle, and swing location-plate so that described vertical calibrating stem is parallel to the axis of fibula, this moment, position and the axis direction thereof of pilot hole were just corresponding with implantation position and the direction of bone hold-down screw, and the implantable bone hold-down screw gets final product under the guiding of pilot hole.As seen, guider of the present utility model all plays more accurately guiding function for the implantation of the bone hold-down screw of Different Individual.And, because lead has two, therefore can select as the case may be a comparatively suitable direction to implant.
Description of drawings
Fig. 1～Fig. 4 is the structural representation of a specific embodiment of guider described in the utility model, and wherein, Fig. 1 is front view, and Fig. 2 is left view, and Fig. 3 is right view, and Fig. 4 is that the A-A of Fig. 1 cuts open three-view diagram.
Fig. 5 is the user mode figure of Fig. 1～embodiment shown in Figure 4.
The specific embodiment
Referring to Fig. 1～Fig. 4, guider for lower tibiofibula combined separation fixing operation of the present utility model is made of location-plate 1, lead 2 and calibrated mount 3, wherein, the top of described location-plate 1 is tabular, the bottom is provided with the recess 4 that the surface with the outer ankle of human body is complementary, this recess 4 by the bottom of location-plate 1 inboard laterally direction be recessed to form; The edge of the inboard of described location-plate 1 is provided with flange.Described calibrated mount 3 is located on location-plate 1 outside and recess 4 corresponding positions, this calibrated mount 3 consists of by mutually vertically consisting of criss-cross vertical calibrating stem 3-1 and horizontal alignment bar 3-2, wherein, vertically the axis of calibrating stem 3-1 is positioned at the vertically vertical bisector plane of location-plate 1, and parallels with the surface of the plate part of location-plate 1; Vertically the cross section of calibrating stem 3-1 and horizontal alignment bar 3-2 is rectangle; Described calibrated mount 3 is connected on the location-plate 1 by a connecting rod 3-3.Described lead 2 is two, is located at the middle part in the outside of location-plate 1, these two leads 2 interior all coaxial pilot hole 2-1 that are provided with for guiding implantable bone hold-down screw; Described two lead 2 symmetries are located at the vertically vertical bisector plane both sides of location-plate 1, the plane at both axis places is perpendicular to location-plate 1, and the angle between this two axial lines is 50 °, that is the angle between the vertical vertical bisector plane of each axis and location-plate 1 is 25 °; The intersection point of described two axial lines is positioned at the inboard of location-plate 1, and the vertical distance between the centre of form of this intersection point and described recess 4 is 2.5cm.
Referring to Fig. 1, the top in location-plate 1 outside is densely covered with columniform protruding 5, is used for when live this position with hand, increases the frictional force between hands and the location-plate 1, prevents from planting in the nail process location-plate 1 and occurs to be offset and cause implanting direction generation deviation.
Referring to Fig. 5, during use, recess 4 with location-plate 1 mates ankle outside human body first, and the direction of adjustment location-plate 1, so that the vertical calibrating stem 3-1 in the calibrated mount 3 is parallel to fibula, then being used by one of them patient has the top of pinning location-plate 1 outside, makes location-plate 1 be pressed on patient's fibula corresponding position, and another patient implanted the bone hold-down screw and got final product from the pilot hole 2-1 of one of them lead 2 this moment.
Claims (3)
1. guider that is used for lower tibiofibula combined separation fixing operation, it has a location-plate (1), the inboard bottom of this location-plate (1) is provided with the recess (4) that the surface with the outer ankle of human body is complementary, the outside is provided with lead (2) on the top corresponding to described recess (4), be provided with the pilot hole (2-1) of coaxial implantable bone hold-down screw in its body, it is characterized in that
Location-plate (1) outside is provided with calibrated mount (3) in the corresponding position of described recess (4), and this calibrated mount (3) comprises a vertical calibrating stem (3-1), and its axis is positioned at the vertically vertical bisector plane and parallel with location-plate (1) of location-plate (1);
Described lead (2) is two and is symmetrical in the vertically vertical bisector plane of location-plate (1), and the plane at the two axis place is perpendicular to location-plate (1), and the angle of the two axis is 50 °～70 ° and meets at the inboard of location-plate (1);
Vertical distance between the centre of form of described recess (4) and two leads (2) crossing point of axes is 2cm～3cm.
2. a kind of guider for lower tibiofibula combined separation fixing operation according to claim 1, it is characterized in that, described calibrated mount also comprises a horizontal alignment bar (3-2), and this horizontal alignment bar (3-2) intersects vertically with described vertical calibrating stem (3-1).
3. a kind of guider for lower tibiofibula combined separation fixing operation according to claim 1 and 2 is characterized in that, is densely covered with projection (5) on the surface of described location-plate (1) outer upper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220303733 CN202665683U (en) | 2012-06-26 | 2012-06-26 | Guider for separation and fixation surgery of tibiofibular syndesmosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220303733 CN202665683U (en) | 2012-06-26 | 2012-06-26 | Guider for separation and fixation surgery of tibiofibular syndesmosis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202665683U true CN202665683U (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220303733 Expired - Fee Related CN202665683U (en) | 2012-06-26 | 2012-06-26 | Guider for separation and fixation surgery of tibiofibular syndesmosis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202665683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109875673A (en) * | 2019-03-28 | 2019-06-14 | 山东大学齐鲁医院(青岛) | Inferior tibiofibular joint resets and screw is placed in guiding device |
-
2012
- 2012-06-26 CN CN 201220303733 patent/CN202665683U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109875673A (en) * | 2019-03-28 | 2019-06-14 | 山东大学齐鲁医院(青岛) | Inferior tibiofibular joint resets and screw is placed in guiding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20150626 |
|
| EXPY | Termination of patent right or utility model |