CN201814648U - Standard fixing device for kneecap - Google Patents
Standard fixing device for kneecap Download PDFInfo
- Publication number
- CN201814648U CN201814648U CN2010205759858U CN201020575985U CN201814648U CN 201814648 U CN201814648 U CN 201814648U CN 2010205759858 U CN2010205759858 U CN 2010205759858U CN 201020575985 U CN201020575985 U CN 201020575985U CN 201814648 U CN201814648 U CN 201814648U
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- patella
- clamping part
- fixed device
- standard
- extension
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Abstract
The utility model discloses a standard fixing device for kneecaps, which comprises a clip style portion. The clip style portion comprises a first tong ram and a second tong ram, which are mutually crossed.A pin is arranged at the intersection of the first tong ram and the second tong ram. The device is characterized in that the front portion of the first tong ram is equipped with a first clamping portion and the front portion of the second tong ram is equipped with a second clamping portion. Two first extension portions are formed by the downward extension of the first clamping portion. The front of the two first extension portions is equipped with a first binding clip respectively. Two first extension portions are also formed by the extension of the second clamping portion corresponding to that of the first clamping portion. The front of the two second extension portions is equipped with a second binding clip respectively. The two first extension portions are equipped with two or more fixing holes of the same amount respectively. The two second extension portions are also equipped with fixing holes corresponding to that of the first extension portions. The fixing holes of the first extension portions are combined with the corresponding fixing holes of the second extension portions to form a set of fixing holes. Accurate needle points are ensured by using the standard fixing device for kneecaps of the utility model.
Description
Technical field
This utility model relates to a kind of fracture fixation device, especially relates to a kind of patella standard fixed device.
Background technology
In the bone surgery of medical domain, Patella fracture adopts the internal fixation formula more at present.And the method for art formula commonly used current two Kirschner wire steel wire tension bands that to be orthopedics circle generally acknowledge.The characteristics of this art formula are simple, fixedly meet the fracture fixation biomechanical principle.Because the present also medical apparatus and instruments of ideal without comparison this operation of operation is added lacking experience of some operator, usually needing repeatedly repeatedly to cause test point just can seek more satisfactory Kirschner wire entry point.Thread a needle in patella so repeatedly, bring very big damage can for patella and surrounding tissue thereof, it is not good enough to cause the patella folded block to reset sometimes, and the unequal problem of facies articularis patellae has a strong impact on the therapeutic effect of art formula.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of pin patella standard fixed device accurately of can guaranteeing to put is provided.
In order to reach above-mentioned technical purpose, this utility model by the following technical solutions:
A kind of patella standard fixed device, comprise pincers type portion, described pincers type portion comprises cross one another first tong arm and second tong arm, the infall of described first tong arm and second tong arm is provided with bearing pin, it is characterized in that: the described first tong arm front end is fixed with first clamping part, the described second tong arm front end is fixed with second clamping part, described first clamping part extend two first extensions downwards, the front end of described two first extensions is equipped with first binding clip, described second clamping part also extends two second extensions and second binding clip corresponding to the position of first clamping part, described two first extensions are provided with at least two fixing holes that quantity equates respectively, described each second extension is being provided with identical fixing hole with the corresponding position of first extension, and in correspondence with each other two fixing holes are formed one group of fixing hole on described first extension and second extension.
Above-mentioned patella standard fixed device, wherein, described at least two fixing hole part syntypes.
Above-mentioned patella standard fixed device, wherein, described fixing hole internal fixation has the cylindrical shape fairlead.
Above-mentioned patella standard fixed device wherein, is equipped with the hollow fixed muffle of two ends tail cap in described one group of fixing hole.
Above-mentioned patella standard fixed device, wherein, the cylindrical shell two ends of described hollow fixed muffle are equipped with grooved metal gasket respectively, and described grooved metal gasket is to the sawtooth that extends axially out of hollow fixed muffle.
Above-mentioned patella standard fixed device, wherein, described first clamping part is provided with latch, and the correspondence position of described second clamping part is provided with jack, and described latch inserts jack and fixes first clamping part and second clamping part.
Above-mentioned patella standard fixed device, wherein, described hollow fixed muffle comprises inner sleeve and the outer sleeve that is enclosed within on the inner sleeve, described outer sleeve comprises the tail medicated cap and is fixed in cylinder on the tail medicated cap, described inner sleeve comprises the tail medicated cap, be fixed in first cylindrical shell on the tail medicated cap, in be connected to second cylindrical shell of first cylindrical shell.
Above-mentioned patella standard fixed device, wherein, described first binding clip is different with the shape of second binding clip.
Above-mentioned patella standard fixed device, wherein, the shape difference of described two second binding clips.
Above-mentioned patella standard fixed device, wherein, described first binding clip is trapezoidal, and described trapezoidal two plane parallel that are parallel to each other are in horizontal plane, and described trapezoid inclined-plane is horizontal by 20-45 °.
Owing to adopted said structure, this utility model has the following advantages compared to existing technology:
1, this utility model patella standard fixed device, because extension is provided with fixing hole, this fixing hole can lead, and makes into pin mark standard, standard.
2, this utility model patella standard fixed device because extension is provided with two group fixing holes, can be determined into pin mark at the patellas of different sizes at least, make into pin more accurately, to go into the pin effect better.
Description of drawings
Fig. 1 is the structural representation of this utility model patella standard fixed device preferred embodiment.
Fig. 2 is the cutaway view of C-C line among Fig. 1.
Fig. 3 is the perspective view of first clamping part.
Fig. 4 is the side structure sketch map of first clamping part.
The specific embodiment
Below, reach embodiment in conjunction with the accompanying drawings and come this utility model is described further:
Embodiment one: as shown in Figure 1, this utility model patella standard fixed device comprises cross one another first tong arm 1 and second tong arm 2, the tail end of described first tong arm 1 and second tong arm 2 is provided with fingerstall, the infall of described first tong arm 1 and second tong arm 2 is provided with bearing pin, the front end of described first tong arm 1 is provided with first clamping part, the front end of described second tong arm 2 is provided with second clamping part, this first clamping part is parallel to first tong arm 1 and is provided with a plane, this plane is connected with extend vertically downward inverted U-shaped away from an end of second clamping part, these two inverted U-shaped arms are two first extensions, be equipped with two fixing holes 11 on every arm, be located at the 11 preferable part syntypes of two fixing holes on the one arm, be 8 fonts; Position corresponding to first clamping part on this second clamping part also is provided with fixing hole 11, the line of corresponding two fixing holes 11 in position is parallel to horizontal plane on this first clamping part and second clamping part, these two corresponding mutually fixing holes 11 are formed one group of fixing hole 11, and every group of fixing hole 11 determined into the pin path; The end of these two first extensions is fixedly connected with first binding clip 10, the end of these two second extensions is fixedly connected with second binding clip, this first binding clip 10 be one trapezoidal, these trapezoid two faces that are parallel to each other are parallel to horizontal plane, this trapezoid inclined-plane is horizontal by 20--45 °, and this second binding clip and first binding clip 10 are symmetrical arranged.
The angle of this trapezoidal inclined-plane and horizontal plane is preferable to be 30--45 °.
Be provided with two fixing holes 11 with one arm, can make into the fixed as required patella size of pin mark and choose the preferable pin mark of going into.In order to select the better pin mark of going into, can in the allowed band of U-shaped arm lengths, more fixing hole 11 be set.The design of fixing hole 11 syntypes can be saved the space of the shared U-shaped arm of fixing hole 11.
Embodiment two: as shown in Figure 1, the difference of itself and embodiment one is, also comprises in the fixing hole 11 of being with externally threaded fairlead 4, the first clamping parts being provided with female thread, and fairlead 4 is by the fixing hole 11 of the external thread rotary forward (FWD) female thread that carries.
This fairlead 4 is preferably metal material, for example is copper.This fairlead 4 can be guided into pin better, improves and goes into pin efficient.
Embodiment three: as shown in Figure 1, the difference of itself and embodiment two is, described first clamping part is provided with two latches with respect to the side of first clamping part, these two latches are parallel to horizontal plane, this second clamping part is provided with two jacks 5 with respect to the position corresponding to two latches, the side of first clamping part.
When first clamping part and second clamping part mutually near the time, two latches on first clamping part insert the jack 5 on second clamping part, fix first clamping part and second clamping part, make between first clamping part and second clamping part and can not produce left and right sides relative displacement.Under the situation of the space of first clamping part and second clamping part permission, more latch and jack 5 can be set, strengthen fixed effect.Also can adopt the mode of buckle and draw-in groove to fix second clamping part and second clamping part.
Embodiment four: the difference of itself and embodiment one is, the end of these two first extensions is fixedly connected with the cuboid that a horizontal direction is extended to second clamping part, the end of this cuboid is connected with an oblique rectangular pyramid, the bottom surface of this oblique rectangular pyramid is connected in the end face of cuboid, a parallel sided is in horizontal plane, a side on the other side is horizontal by 30-60 ° angle, and is parallel between two adjacent sides of the side of horizontal plane and is 50-90 ° angle.
Preferablely horizontal by the side of angle be 40-50 °; Angle between two sides is preferable to be 70-90 °.
Embodiment five: shown in Fig. 3,4, the difference of itself and the foregoing description is, is connected by an inclined-plane between the bottom surface of this first binding clip 10 and the vertical, and the angle on this inclined-plane and ground is 20--45 °.The angle on this inclined-plane and ground is preferably 30--45 °.
Embodiment six: the difference of itself and embodiment four is, these second binding clip, 6 structures as shown in Figure 1, 2, the end of these two second extensions is fixedly connected with the cuboid that a horizontal direction is extended to first clamping part, the end of this cuboid is connected with an oblique rectangular pyramid, the bottom surface of this oblique rectangular pyramid is connected in the end face of cuboid, a parallel sided is in horizontal plane, a side on the other side is horizontal by 10-25 ° angle, and is parallel between two adjacent sides of the side of horizontal plane and is 30-50 ° angle.Preferablely horizontal by the side of angle be 15-20 °; Angle between two sides is preferable to be 40-50 °.
Embodiment seven: the difference of itself and embodiment four is, these second binding clip, 3 structures as shown in Figure 1, 2, the end of these two second extensions is fixedly connected with the cuboid that a horizontal direction is extended to first clamping part, the end of this cuboid is connected with an oblique rectangular pyramid, the bottom surface of this oblique rectangular pyramid is connected in the end face of cuboid, a parallel sided is in horizontal plane, a side on the other side is horizontal by 25-45 ° angle, and is parallel between two adjacent sides of the side of horizontal plane and is 60-80 ° angle.Preferablely horizontal by the side of angle be 30-40 °, the preferable angle that is 60-70 ° of angle between two sides.
Embodiment eight: as shown in Figure 1, 2, the difference of itself and embodiment four is, the end of these two second extensions is fixedly connected with the cuboid that a horizontal direction is extended to first clamping part, the end of this cuboid is connected with an oblique rectangular pyramid, the bottom surface of the oblique rectangular pyramid of these second binding clip, 6 ends is connected in the end face of cuboid, a parallel sided is in horizontal plane, and a side on the other side is preferably 15-20 ° horizontal by 10-25 ° angle; Be 30-50 ° angle between two sides adjacent, be preferably 40-50 ° with the side that is parallel to horizontal plane; The oblique rectangular pyramid bottom surface of these second binding clip, 3 ends is connected in the end face of cuboid, and a parallel sided is in horizontal plane, and a side on the other side is preferably 30-40 ° horizontal by 25-45 ° angle; Be 60-80 ° angle between two sides adjacent, be preferably 60-70 ° with the side that is parallel to horizontal plane.
Embodiment nine: the difference of itself and the foregoing description is, adopt the hollow fixed muffle of tail cap, this hollow fixed muffle comprises an inner sleeve 9 and an outer sleeve 8, this inner sleeve 9 comprises the tail medicated cap of an annular, be fixed in columniform first cylindrical shell on this tail medicated cap plane, be connected to second cylindrical shell of this first cylindrical shell in one end, the external diameter of this second cylindrical shell equals the internal diameter of this first cylindrical shell, outer sleeve 8 comprises the tail medicated cap of an annular and is fixed in cylindrical first cylindrical shell on this tail medicated cap plane, first cylindrical shell on the outer sleeve 8 is placed in second cylindrical shell of inner sleeve 9, make outer sleeve 8 fixing, form hollow fixed muffle with inner sleeve 9.
Embodiment ten: the difference of itself and embodiment nine is, all be equipped with a toothed pad 7 on first cylindrical shell of outer sleeve 8 and inner sleeve 9, the toothed pad 7 of this outer sleeve 8 comprises an annular base, this annular base extends sawtooth towards the one side of inner sleeve 9 along the axis direction of cylindrical shell, this sawtooth is preferably the outer annular edge edge of annular array in base, and the toothed pad 7 of this inner sleeve 9 is symmetrical arranged with the toothed pad 7 of outer sleeve 8.
Use the patella standard fixed device of preferred construction that patella is fixed, adopt following step:
(1) hold fingerstall, rotate first tong arm 1, second tong arm 2, make first binding clip 10 and second binding clip will need fixed patella to clamp, at this moment, the latch of first clamping part inserts the jack 5 of second clamping part.
(2) size of fixed patella is as required selected to be positioned at the fixing hole 11 on first extension, and with this fixing hole 11 of fairlead 4 precessions, is determined into pin mark.
(3) will insert fairlead 4 with the drilling rod of drill bit, and hole on the fixed patella of needs, drill bit corresponding fixing hole 11 from second extension gets out.
(4) take off drill bit, outer sleeve 8 is passed the fixing hole 11 of second extension, stretch in the patella hole, be enclosed within on the drilling rod.
(5) from the hole of the tail medicated cap of outer sleeve 8, insert steel wire, from the fixing hole 11 of first extension, pass, and take out fairlead 4 and drilling rod.
(6) fixing hole 11 of inner sleeve 9 from first extension stretched in the patella hole, first cylindrical shell of outer sleeve 8 is enclosed within on second cylindrical shell of inner sleeve 9 fully, finishes installation.
(7) on another first extension, repeat above-mentioned steps, finish the installation of another hollow fixed muffle and steel wire.
(8) two steel wires intersections are fixing.
Adopt the patella of the fixing fracture of said method, can go into pin mark according to selection the best of the flexible in size of object patella, and fixing hole 11 and fairlead 4 can be effectively to drill bit and hollow fixed muffle guiding, it is accurate to make into the pin position; And, insert sleeve after, it is few that the fixture upper and lower side is exposed in the soft tissue metal part, is beneficial to functional exercise more, reduces the pain that foreign body causes; The invar silk passes in the middle of sleeve, the possibility that no steel wire is loosening; More because the slip between the sleeve is stable more smooth, the characteristics of having given prominence to the patella tension band can promote union of fracture.
And the patella of handling if desired is when being special fractures such as comminuted fracture, can insert inner and outer sleeves 8 the time, on its cylindrical shell, add toothed pad 7, fixing after, sawtooth on this toothed pad 7 can be caught well needs fixed patella, makes the fracture fixation effect more stable.
Claims (10)
1. patella standard fixed device, comprise pincers type portion, described pincers type portion comprises cross one another first tong arm and second tong arm, the infall of described first tong arm and second tong arm is provided with bearing pin, it is characterized in that: the described first tong arm front end is fixed with first clamping part, the described second tong arm front end is fixed with second clamping part, described first clamping part extend two first extensions downwards, the front end of described two first extensions is equipped with first binding clip, described second clamping part also extends two second extensions and second binding clip corresponding to the position of first clamping part, described two first extensions are provided with at least two fixing holes that quantity equates respectively, described each second extension is being provided with identical fixing hole with the corresponding position of first extension, and in correspondence with each other two fixing holes are formed one group of fixing hole on described first extension and second extension.
2. patella standard fixed device according to claim 1 is characterized in that: described at least two fixing hole part syntypes.
3. patella standard fixed device according to claim 1 and 2 is characterized in that: described fixing hole internal fixation has the cylindrical shape fairlead.
4. patella standard fixed device according to claim 1 and 2 is characterized in that: the hollow fixed muffle that is equipped with the two ends tail cap in described one group of fixing hole.
5. patella standard fixed device according to claim 4 is characterized in that: the cylindrical shell two ends of described hollow fixed muffle are equipped with a grooved metal gasket respectively, the sawtooth that extends axially out towards hollow fixed muffle that described two grooved metal gaskets are relative.
6. patella standard fixed device according to claim 1 and 2 is characterized in that: described first clamping part is provided with latch, and the correspondence position of described second clamping part is provided with jack, and described latch inserts jack and fixes first clamping part and second clamping part.
7. patella standard fixed device according to claim 4, it is characterized in that: described hollow fixed muffle comprises inner sleeve and the outer sleeve that is enclosed within on the inner sleeve, described outer sleeve comprises the tail medicated cap and is fixed in cylinder on the tail medicated cap, described inner sleeve comprises the tail medicated cap, be fixed in first cylindrical shell on the tail medicated cap, in be connected to second cylindrical shell of first cylindrical shell.
8. patella standard fixed device according to claim 1 and 2 is characterized in that: described first binding clip is different with the shape of second binding clip.
9. patella standard fixed device according to claim 8 is characterized in that: described two second binding clips shape difference each other.
10. patella standard fixed device according to claim 8 is characterized in that: described first binding clip is trapezoidal, and described trapezoidal two faces that are parallel to each other are parallel to horizontal plane, and described trapezoid inclined-plane is horizontal by 20-45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205759858U CN201814648U (en) | 2010-10-26 | 2010-10-26 | Standard fixing device for kneecap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205759858U CN201814648U (en) | 2010-10-26 | 2010-10-26 | Standard fixing device for kneecap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201814648U true CN201814648U (en) | 2011-05-04 |
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ID=43912618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205759858U Expired - Lifetime CN201814648U (en) | 2010-10-26 | 2010-10-26 | Standard fixing device for kneecap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201814648U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103705293A (en) * | 2012-09-28 | 2014-04-09 | 德普伊(爱尔兰)有限公司 | Orthopaedic surgical instrument assembly for implanting a prosthetic patella component |
| CN106580422A (en) * | 2016-12-28 | 2017-04-26 | 付中国 | Bone fixator guide instrument |
| CN107789047A (en) * | 2017-11-02 | 2018-03-13 | 北京思宇博特科技有限公司 | A kind of fracture resetting tongs |
| US10335163B2 (en) | 2013-03-05 | 2019-07-02 | Depuy Ireland Unlimited Company | Polymer 4-in-2 femoral cutting instrument having separable A/P and chamfer cutting blocks |
-
2010
- 2010-10-26 CN CN2010205759858U patent/CN201814648U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103705293A (en) * | 2012-09-28 | 2014-04-09 | 德普伊(爱尔兰)有限公司 | Orthopaedic surgical instrument assembly for implanting a prosthetic patella component |
| CN103705293B (en) * | 2012-09-28 | 2017-08-01 | 德普伊爱尔兰无限公司 | Orthopaedic instrumentation component for being implanted into prosthese patellar component |
| US10335163B2 (en) | 2013-03-05 | 2019-07-02 | Depuy Ireland Unlimited Company | Polymer 4-in-2 femoral cutting instrument having separable A/P and chamfer cutting blocks |
| US11234711B2 (en) | 2013-03-05 | 2022-02-01 | Depuy Ireland Unlimited Company | Polymer 4-in-2 femoral cutting instrument having separable A/P and chamfer cutting blocks |
| CN106580422A (en) * | 2016-12-28 | 2017-04-26 | 付中国 | Bone fixator guide instrument |
| CN106580422B (en) * | 2016-12-28 | 2024-04-09 | 付中国 | Bone fixator guide apparatus |
| CN107789047A (en) * | 2017-11-02 | 2018-03-13 | 北京思宇博特科技有限公司 | A kind of fracture resetting tongs |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110504 |