CN207400794U - A kind of posterior cruciate ligament of knee avulsion fracture rotary presser fixation steel plate - Google Patents
A kind of posterior cruciate ligament of knee avulsion fracture rotary presser fixation steel plate Download PDFInfo
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- CN207400794U CN207400794U CN201720374047.3U CN201720374047U CN207400794U CN 207400794 U CN207400794 U CN 207400794U CN 201720374047 U CN201720374047 U CN 201720374047U CN 207400794 U CN207400794 U CN 207400794U
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- steel plate
- cruciate ligament
- posterior cruciate
- circular
- knee
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Abstract
A kind of posterior cruciate ligament of knee avulsion fracture rotary presser fixation steel plate, belongs to orthopedic medical device technical field, for being tensed to drag wire.Its technical solution is：Steel plate is circle, there are four circular holes in the plate face of circular steel plate, four circular holes are uniformly distributed on steel plate face, four center of circular hole are equal with the circle center distance of circular steel plate, the line of centres of two of which circular hole and the line of centres of other two circular hole are perpendicular, there is a circle pawl along steel plate edge in the one side plate face of steel plate, the braking direction of multiple ratchets is the same direction around steel plate face circumference.The utility model is simple in structure, easy to use, self-locking effect is good, can effectively tense drag wire, avoids the tension recovery of posterior cruciate ligament of knee, prevents the failure of the fixed operation caused by the tension of posterior cruciate ligament of knee reduces.
Description
Technical field
The utility model is related to a kind of rotations for treated via arthroscope posterior cruciate ligament of knee avulsion fracture tibial tunnel collar extension
Turn pressurization fixation steel plate, belong to orthopedic medical device technical field.
Background technology
Posterior cruciate ligament of knee avulsion fracture is a kind of medicine in field of sports medicine violence damage, is common in traffic accident wound or high level movement
Member's competitive sport damage.Traditional therapy is that sclerite is fixed in notch knee joint rear portion, but due to knee joint
Rear portion blood vessel and Substance P enrich, it is easy to it causes to damage, it is difficult in clinical treatment.
It is clinical for posterior cruciate ligament of knee tibia dorsal condyle avulsion fracture with popularizing for accurate medical and minimally invasive theory
Upper selected therapy is to prick ligament stop connecting portion or avulsion bone piece, i.e. joint using nonabsorable line or steel wire row set
Avulsion fracture set pricks ligamentopexis under mirror.In operation the most important point be shin bone collar extension tightening avulsion fracture block drag wire must
It must tense, it is impossible to have relaxation, the other movement of grade or relaxation will result in the very big of tension and reduce or lose, Jin Erzao
Into the failure of fixed operation.However, due in knee joint cavity narrow and small and posterior cruciate ligament of knee tension recover when drawing dynamics,
It is abnormal difficult for accomplishing to tense completely when finally fixing drag wire.
At present, method used in clinician be mostly single-handedly tense ropework or button Interal fixation, but no matter
It is how careful and tight during gimmick ropework or button Interal fixation, it has been both needed to the fixed action that knots, this process center line
Overturning millimetre-sized relaxation will inevitably occur, and this is that postoperative tension is caused to lose and the main original of operative failure
Cause.Therefore how to tense drag wire without there is relaxation is clinically to perplex the problem of doctor at present, does not find one so far
Kind can preferably solve knot loose medical instrument and method, it would be highly desirable to solve.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of posterior cruciate ligament of knee avulsion fracture rotary pressers to fix
Steel plate, this pressurization fixation steel plate can assist a physician and tense drag wire, avoid the tension recovery of posterior cruciate ligament of knee, prevent because
The tension reduction of posterior cruciate ligament of knee causes the fixed failure performed the operation.
Solving the technical solution of above-mentioned technical problem is：
A kind of posterior cruciate ligament of knee avulsion fracture rotary presser fixation steel plate, steel plate are circle, are had in the plate face of circular steel plate
Four circular holes, four circular holes are uniformly distributed on steel plate face, and four center of circular hole are equal with the circle center distance of circular steel plate, wherein two
The line of centres of a circular hole and the line of centres of other two circular hole are perpendicular, have in the one side plate face of steel plate along steel plate edge
One circle pawl, the braking direction of multiple ratchets are the same direction around steel plate face circumference.
Above-mentioned posterior cruciate ligament of knee avulsion fracture rotary presser fixation steel plate, the pawl on the steel plate face are tooth form spine
Pawl, the front end face of pawl teeth and the angle of steel plate face are 70-80 °, and the rear end face of pawl teeth and the angle of steel plate face are 30-
50°。
The beneficial effects of the utility model are：
There are four circular holes that across intersects in the circular steel plate of the utility model, with having in the plate face of shin bone side contacts
Unidirectional circle pawl structures, posterior cruciate ligament of knee avulsion fracture set are pricked fixed two drag wires and are pulled out through tibial tunnel
Afterwards, through two opposite circular holes of steel plate, conventional single-handedly ropework compresses, afterwards using instrument by another two circular hole to spine
The opposite direction rotation steel plate of pawl braking, drag wire, which can intersect, to be tightened, and since pawl has single direction rotation, steel plate can not be certainly
Row revolution, so as to avoid the tension recovery of posterior cruciate ligament of knee.
The utility model is simple in structure, easy to use, self-locking effect is good, can effectively tense drag wire, avoid
The tension recovery of posterior cruciate ligament of knee prevents the failure of the fixed operation caused by the tension of posterior cruciate ligament of knee reduces.
The utility model is the pioneering of posterior cruciate ligament of knee avulsion fracture rotary presser fixation steel plate fastening drag wire, with simple
The structure drag wire that solves the problems, such as long-standing problem doctor cannot effectively tense, meet precisely medical treatment and Minimally Invasive Surgery
It is required that are provided by strong science and technology and is supported for application of the Minimally Invasive Surgery in the treatment of posterior cruciate ligament of knee avulsion fracture and popularization, it can
Effectively to be applied in clinic.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the bottom view of Fig. 1.
It is marked in figure as follows：Steel plate 1, circular hole 2, pawl 3.
Specific embodiment
It is shown in figure, the utility model is a circular steel plate 1, a diameter of 10-12mm of steel plate 1, thickness 1-2mm.
Steel plate 1 a diameter of 10mm, thickness 1.5mm of one embodiment of the utility model.
It is shown in figure, there are four circular hole 2 in the plate face of circular steel plate 1, four circular holes 2 are uniformly distributed in 1 plate face of steel plate, four
2 center of circular hole is equal with the circle center distance of circular steel plate 1, in the line of centres of two of which circular hole 2 and other two circular hole 2
Heart line is perpendicular.Two diagonal circular holes 2 are used for through drag wire, other two diagonal circular hole 2 is used for turning using instrument
Dynamic steel plate 1.
Show there is a circle pawl 3, the braking side of multiple ratchets 3 along 1 edge of steel plate in the one side plate face of steel plate 1 in figure
To the same direction for circular 1 plate face circumference of steel plate.Can be counter clockwise direction or clockwise direction.If pawl 3
Braking direction be counterclockwise, then steel plate 1 can only be rotated in the clockwise direction；If the braking direction of pawl 3 is up time
Pin direction, then steel plate 1 can only rotate counterclockwise.The braking of the pawl of the embodiment of the utility model shown in figure
Direction is counterclockwise.
It is shown in figure, the pawl 3 in 1 plate face of steel plate is tooth form pawl, the front end face of pawl teeth and the angle of 1 plate face of steel plate
For 70-80 °, the rear end face of pawl teeth and the angle of 1 plate face of steel plate are 30-50 °.The embodiment of the utility model shown in figure
The angle α of front end face and 1 plate face of steel plate of pawl teeth be 70 °, the rear end face of pawl teeth is 40 ° with the angle β of 1 plate face of steel plate
The use process of the utility model is as follows：
It is detected under conventional arthroscope at posterior cruciate ligament of knee avulsion fracture after situation, shin bone guider is positioned from tibial tubercle
Side to sclerite distal end drills through a diameter 5mm osseous tunnels, imports nonabsorable suture（The high-strength lines of Fiber Wire）It is detained after eight words
Pressing determines sclerite, and drag wire from osseous tunnel is pulled out and is fixed in tibial tunnel distal end using rotary presser steel plate 1；Choose steel
A pair of of circular hole 2 of plate 1 passes through drag wire, and steel plate 1 then is depressed into tibial tunnel collar extension bone face, and conventional single-handedly ropework compresses；
Reuse a small curved forceps, by two of small curved forceps pincers point insertion another pairs do not have drag wire by circular hole 2, to pawl
3 braking directions（Counterclockwise）Opposite direction（Clockwise）Steel plate 1 is rotated, two drag wires, which generate, to intersect, wrings, and rotates 3 weeks
Left and right can tighten drag wire.Due to the single direction rotation that pawl 3 has, steel plate 1 can not be turned round voluntarily, so as to avoid rear friendship
Pitch the tension recovery of ligament.
Claims (2)
1. a kind of posterior cruciate ligament of knee avulsion fracture rotary presser fixation steel plate, it is characterised in that：Steel plate（1）For circle, circular steel
Plate（1）Plate face on there are four circular hole（2）, four circular holes（2）In steel plate（1）It is uniformly distributed in plate face, four circular holes（2）Center and circle
Shape steel plate（1）Circle center distance it is equal, two of which circular hole（2）The line of centres and other two circular hole（2）The line of centres
It is perpendicular, steel plate（1）One side plate face on along steel plate（1）There is a circle pawl at edge（3）, multiple ratchets（3）Braking direction
To surround steel plate（1）The same direction of plate face circumference.
2. posterior cruciate ligament of knee avulsion fracture rotary presser fixation steel plate according to claim 1, it is characterised in that：The steel
Plate（1）Pawl in plate face（3）For tooth form pawl, the front end face and steel plate of pawl teeth（1）The angle of plate face is 70-80 °, pawl
The rear end face and steel plate of tooth（1）The angle of plate face is 30-50 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720374047.3U CN207400794U (en) | 2017-04-11 | 2017-04-11 | A kind of posterior cruciate ligament of knee avulsion fracture rotary presser fixation steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720374047.3U CN207400794U (en) | 2017-04-11 | 2017-04-11 | A kind of posterior cruciate ligament of knee avulsion fracture rotary presser fixation steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207400794U true CN207400794U (en) | 2018-05-25 |
Family
ID=62321752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720374047.3U Expired - Fee Related CN207400794U (en) | 2017-04-11 | 2017-04-11 | A kind of posterior cruciate ligament of knee avulsion fracture rotary presser fixation steel plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207400794U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106955148A (en) * | 2017-04-11 | 2017-07-18 | 河北医科大学第三医院 | A kind of posterior cruciate ligament of knee avulsion fracture rotary presser fixation steel plate |
-
2017
- 2017-04-11 CN CN201720374047.3U patent/CN207400794U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106955148A (en) * | 2017-04-11 | 2017-07-18 | 河北医科大学第三医院 | A kind of posterior cruciate ligament of knee avulsion fracture rotary presser fixation steel plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180525 Termination date: 20190411 |
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| CF01 | Termination of patent right due to non-payment of annual fee |