CN108904023A - Posterior cruciate ligament of knee avulsion fracture fixes device - Google Patents
Posterior cruciate ligament of knee avulsion fracture fixes device Download PDFInfo
- Publication number
- CN108904023A CN108904023A CN201810537022.XA CN201810537022A CN108904023A CN 108904023 A CN108904023 A CN 108904023A CN 201810537022 A CN201810537022 A CN 201810537022A CN 108904023 A CN108904023 A CN 108904023A
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- CN
- China
- Prior art keywords
- cylinder
- long cylinder
- handle
- top plate
- cruciate ligament
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- 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.)
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Classifications
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- 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
Abstract
Posterior cruciate ligament of knee avulsion fracture fixes device,It is related to the field of medical instrument technology,In particular to the fixed device of posterior cruciate ligament of knee avulsion fracture after,Including handle,Long cylinder,Traction rope,Bone block replacement and fixation mechanism,Handle is arranged in described long cylinder one end,Handle is hollow tubular structures,It is interconnected inside the intracavity of handle and the long cylinder,The long cylinder other end is coupled bone block replacement and fixation mechanism,Traction rope one end sequentially passes through the intracavity of handle and long tube inner chamber and connect with bone block replacement and fixation mechanism,Bone block replacement and fixation mechanism includes top plate,Short cylinder and several strips,Short cylinder is arranged in the top plate side,Described short cylinder one end is set in the long cylinder,The short cylinder is to be threadedly coupled with the long cylinder,Several strips are distributed in the top plate side along short cylinder exterior annular,Described several strip one end are hinged with the top plate.
Description
Technical field
The present invention relates to the field of medical instrument technology, the in particular to fixed device of posterior cruciate ligament of knee avulsion fracture.
Background technique
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 treatment method is that sclerite is fixed in notch knee joint rear portion, but due to knee joint
Rear portion blood vessel and Substance P are abundant, it is easy to it causes to damage, it is difficult in clinical treatment.
Summary of the invention
It is an object of the present invention to be directed to above-mentioned problem, provide posterior cruciate ligament of knee avulsion fracture fixed device.
To achieve the goals above, technical solution of the present invention is specific as follows：
Posterior cruciate ligament of knee avulsion fracture fixes device, including handle, long cylinder, traction rope, bone block replacement and fixation mechanism, the long cylinder
Handle is arranged in one end, and handle is hollow tubular structures, is interconnected inside the intracavity of handle and the long cylinder, the long cylinder is another
One end fits install bone block replacement and fixation mechanism, and traction rope one end sequentially passes through the intracavity of handle and long tube inner chamber and the bone
The connection of block reset fixed mechanism.
Bone block replacement and fixation mechanism includes top plate, short cylinder and several strips, and short cylinder is arranged in the top plate side, described
Short cylinder one end is set in the long cylinder, and the short cylinder is to be threadedly coupled with the long cylinder, and several strips are on the outside of short cylinder
For annular spread in the top plate side, described several strip one end are hinged with the top plate.
Several positive hooks are arranged in a circle interval on the outside of the long cylinder, and several strip ends are provided with negative hook, institute
State positive hook and the negative mutual hook card of hook.
The top plate side is provided with interior six sides.
The traction rope tail end is coupled buckle.
The buckle includes outer disk and the cylindrical body for being set to outer disk side, is axially arranged two on the buckle and leads to
Hole.
The beneficial effects of the invention are as follows：The present invention drills through one in the lateral posterior cruciate ligament of knee avulsion fracture prescription of shin bone one upwards
Long cylinder is inserted into this channel by a channel, while it is attached at posterior cruciate ligament of knee avulsion fracture to reach bone block replacement and fixation mechanism
Closely, long cylinder is taken out, operator pulls traction rope, and traction rope pulls bone block replacement and fixation mechanism, makes bone block replacement and fixation mechanism will
Sclerite retracts reset, and finally traction rope tail end is fixed on outside shin bone, completes operation, the present invention goes around, not
In the case where needing surgical incision knee joint rear portion, fracture replacement and fixation has been abandoned traditional at notch knee joint rear portion
The problem of being fixed to sclerite, causing knee joint rear portion blood vessel and neurotrosis, improves cure rate, does not influence patient's
Postoperative life quality, wherein we have used for reference the design feature of umbrella, and bone block replacement and fixation mechanism is designed to as umbrella
The form equally opened opens several strips when bone block replacement and fixation mechanism reaches affected part, and strip is just as umbrella, button
It covers on sclerite, at this time by tensing traction rope, is resetted so that several strips pull sclerite clamping, in order to by bone block
Replacement and fixation mechanism is sent into during shin bone, prevents bone block replacement and fixation mechanism from shaking or falling off on long cylinder, we are by bone
The short cylinder of block reset fixed mechanism is mutually threadedly coupled fixation with long cylinder, and bone block replacement and fixation mechanism is sent into shin in order to prevent
When during bone, guaranteeing the fixation of strip, we devise the spaced several positive hooks of a circle on the outside of long cylinder, and if
Dry strip end is provided with negative hook, positive hook and the mutual hook card of negative hook again, ensure that the fixation of strip, and resets in bone block
After fixed mechanism reaches affected part, in order to be mutually disengaged positive hook with negative hook, it is necessary to have the power of a rotation, so that positive hook
With the mutual rotational disengagement of negative hook, as long as rotating long cylinder at this point, rotating handle, positive hook and negative hook are mutually de-
From, at this point, since the short cylinder of bone block replacement and fixation mechanism is mutually threadedly coupled fixation with long cylinder, it is short while the rotation of long cylinder
Cylinder is also detached from long cylinder, after making traction rope tense bone block replacement and fixation mechanism, the tail end of traction rope is stablized and is fixed, we
Buckle is devised, two through-holes of axial setting on buckle, after traction rope tenses bone block replacement and fixation mechanism, by the tail of traction rope
It after end passes through one of through-hole, knots and fixes, then traction rope is bent and is inserted into another through-hole, reach fixed tractive
Effect, in order to make fixed more stable of traction rope, we have used for reference the principle of drawing pin, and click-on design is by outer circle by we
The structural body that piece and the cylindrical body for being set to outer disk side form, in actual use, cylindrical body is inserted into shin bone channel, is made
Must buckle and be stably fixed on shin bone, after rehabilitation at patients with fractures, need to remove the present apparatus, at this point, it is only necessary to
Knee joint rear portion and top plate corresponding section, cut an osculum, by screwdriver be inserted on top plate in six sides, while in front of shin bone
It cuts osculum and cuts buckle traction rope in front of shin bone, then by long cylinder again insertable into tibial bone road, making long cylinder and short cylinder phase mutual connection
Touching rotates screwdriver, and top plate drives short cylinder rotation, and short cylinder enters long cylinder with the internal screw thread of long cylinder, meanwhile, strip rotation, commutating tooth
The present invention is taken out, is simple and efficient finally, operator holds handle by mutual hook card again for hook and negative hook.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the cross-sectional view of Fig. 1.
Fig. 3 is the structural schematic diagram of long cylinder.
Fig. 4 is the structural schematic diagram of top plate.
Fig. 5 is the structural schematic diagram of buckle.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
As shown in Figures 1 to 5, the fixed device of posterior cruciate ligament of knee avulsion fracture, including handle 1, long cylinder 2, traction rope 6, bone
Handle 1 is arranged in block reset fixed mechanism, long 2 one end of cylinder, and handle 1 is hollow tubular structures, 1 inner cavity of handle and long 2 inside phase of cylinder
Intercommunicated, long 2 other end of cylinder is coupled bone block replacement and fixation mechanism, and 6 one end of traction rope sequentially passes through 1 inner cavity of handle and long cylinder
2 inner cavities are connect with bone block replacement and fixation mechanism, and 6 tail end of traction rope is coupled buckle 7, and buckle 7 includes outer disk and is set to
The cylindrical body of outer disk side buckles and two through-holes is axially arranged on 7, and bone block replacement and fixation mechanism includes top plate 3,4 and of short cylinder
Short cylinder 4 is arranged in several strips 5,3 side of top plate, and 3 other side of top plate is provided with interior six sides, and short 4 one end of cylinder is set in long cylinder 2,
Short cylinder 4 is to be threadedly coupled with long cylinder 2, and several strips 5 are distributed in 3 side of top plate, several 5 one end of strip along short 4 exterior annular of cylinder
Hinged with top plate 3, several positive hooks are arranged in long 2 outside of cylinder, one circle interval, and several 5 ends of strip are provided with negative hook, institute
State positive hook and the negative mutual hook card of hook.
In the use of the present invention, a channel is drilled through upwards in the lateral posterior cruciate ligament of knee avulsion fracture prescription of shin bone one, it will
Long cylinder 2 is inserted into this channel, while reaches bone block replacement and fixation mechanism near at posterior cruciate ligament of knee avulsion fracture, rotates hand
Handle 1 rotates long cylinder 2, and positive hook is mutually disengaged with negative hook, and several strips 5 are opened, and strip 5 is just as umbrella, button
It covers on sclerite, meanwhile, long cylinder 2 is rotationally disengaged with short cylinder 4, at this time by tensing traction rope 6, so that several strips 5 are by bone
Folded block clamping, which pulls, to be resetted, and after the tail end of last traction rope 6 passes through one of through-hole of buckle 7, then traction rope 6 is bent and is inserted
Enter in another through-hole, completes to fix.
The present invention is included in 46 posterior cruciate ligament of knee avulsion fracture cases altogether, wherein using of the invention experimental group 23, leads to
It crosses incision knee joint rear portion and carries out fixed in reset screw control group 23.
The intraoperative blood loss 20ml as a result, experimental group is averaged, control group are averaged intraoperative blood loss 100ml；Experimental group is averaged hand
Art time 62min, control group mean operative time 85min；Two groups in union, displacement fracture situation no significant difference, two
Group fracture is healed, two groups of HSS scorings after surgery, Tegner scoring, Lysholm scoring, KT-2000 scoring aspect
Quite, but experimental group can carry out knee joint function exercising earlier after surgery, and have operation method simplicity, quick and wound small
Advantage.
Claims (6)
1. posterior cruciate ligament of knee avulsion fracture fixes device, which is characterized in that including handle（1）, long cylinder（2）, traction rope（6）, bone
Block reset fixed mechanism, the long cylinder（2）Handle is arranged in one end（1）, handle（1）For hollow tubular structures, the handle（1）It is interior
Chamber and the long cylinder（2）Inside is interconnected, the long cylinder（2）The other end is coupled bone block replacement and fixation mechanism, traction rope
（6）One end sequentially passes through the handle（1）Inner cavity and long cylinder（2）Inner cavity is connect with bone block replacement and fixation mechanism.
2. the fixed device of posterior cruciate ligament of knee avulsion fracture according to claim 1, which is characterized in that the bone block resets solid
Determining mechanism includes top plate（3）, short cylinder（4）With several strips（5）, the top plate（3）Short cylinder is arranged in side（4）, the short cylinder（4）
One end is set to the long cylinder（2）It is interior, the short cylinder（4）With the long cylinder（2）To be threadedly coupled, several strips（5）Edge
Short cylinder（4）Exterior annular is distributed in the top plate（3）Side, several strips（5）One end with the top plate（3）Hingedly.
3. the fixed device of posterior cruciate ligament of knee avulsion fracture according to claim 2, which is characterized in that the long cylinder（2）Outside
Several positive hooks, several strips are arranged in the circle interval of side one（5）End is provided with negative hook, and the positive hook is born with described
The mutual hook card of hook.
4. the fixed device of posterior cruciate ligament of knee avulsion fracture according to claim 3, which is characterized in that the top plate（3）One
Side is provided with interior six sides.
5. the fixed device of posterior cruciate ligament of knee avulsion fracture according to claim 4, which is characterized in that the traction rope（6）
Tail end is coupled buckle（7）.
6. the fixed device of posterior cruciate ligament of knee avulsion fracture according to claim 5, which is characterized in that the buckle（7）Packet
Include outer disk and the cylindrical body for being set to outer disk side, the buckle（7）Two through-holes of upper axial setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810537022.XA CN108904023A (en) | 2018-05-30 | 2018-05-30 | Posterior cruciate ligament of knee avulsion fracture fixes device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810537022.XA CN108904023A (en) | 2018-05-30 | 2018-05-30 | Posterior cruciate ligament of knee avulsion fracture fixes device |
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| Publication Number | Publication Date |
|---|---|
| CN108904023A true CN108904023A (en) | 2018-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810537022.XA Pending CN108904023A (en) | 2018-05-30 | 2018-05-30 | Posterior cruciate ligament of knee avulsion fracture fixes device |
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| Country | Link |
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| CN (1) | CN108904023A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110403687A (en) * | 2019-07-30 | 2019-11-05 | 河北医科大学第三医院 | A kind of minimally invasive fixed device of tibial eminence fracture |
| CN111166404A (en) * | 2020-02-14 | 2020-05-19 | 北京天星博迈迪医疗器械有限公司 | Umbrella-shaped anchor with line |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204364100U (en) * | 2014-12-19 | 2015-06-03 | 李洪平 | A kind of breastbone auxiliary fixer |
| CN105919660A (en) * | 2016-05-30 | 2016-09-07 | 袁振 | Fracture block fixing device and method for fixing fracture block |
-
2018
- 2018-05-30 CN CN201810537022.XA patent/CN108904023A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204364100U (en) * | 2014-12-19 | 2015-06-03 | 李洪平 | A kind of breastbone auxiliary fixer |
| CN105919660A (en) * | 2016-05-30 | 2016-09-07 | 袁振 | Fracture block fixing device and method for fixing fracture block |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110403687A (en) * | 2019-07-30 | 2019-11-05 | 河北医科大学第三医院 | A kind of minimally invasive fixed device of tibial eminence fracture |
| CN111166404A (en) * | 2020-02-14 | 2020-05-19 | 北京天星博迈迪医疗器械有限公司 | Umbrella-shaped anchor with line |
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Application publication date: 20181130 |
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