CN2300378Y - Multi-function pelvis external fixator - Google Patents
Multi-function pelvis external fixator Download PDFInfo
- Publication number
- CN2300378Y CN2300378Y CN 97215388 CN97215388U CN2300378Y CN 2300378 Y CN2300378 Y CN 2300378Y CN 97215388 CN97215388 CN 97215388 CN 97215388 U CN97215388 U CN 97215388U CN 2300378 Y CN2300378 Y CN 2300378Y
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- CN
- China
- Prior art keywords
- connecting rod
- rod
- external fixator
- fracture
- model
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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.)
- Expired - Fee Related
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Abstract
The utility model relates to a multi-function pelvis external fixer, composed of connecting rods and fixing clamp plates arranged at the ends of the connecting rods. The utility model is characterized in that the number of the connecting rods is two, one connecting rod is a horizontal connecting rod fixed between ilium wings at two sides by the fixing plate, and the other connecting rod is a sloping connecting rod fixed between the big tuberosity at a hurt side and the ilium wing at a healthy side. The utility model has good therapeutic effects to the unstable pelvic fracture and dislocation and the fracture of acetabulum.
Description
This utility model relates to medical apparatus and instruments.More particularly, be a kind of external fixation device that is used for the treatment of the Unstable Pelvic Fracture dislocation.
Adopt external fixator that Unstable Pelvic Fracture is dislocated to treat and be prior art.The present external fixator that generally uses, having remained since the seventies with Hoffmann pelvis frame is A font or the trapezoidal pelvis external fixator that basic engineering goes out.Because structure is limit, this two classes holder has following weak point in actual use to some extent.
No matter 1 is A font or trapezoidal pelvis external fixator, all can not control half side pelvis three-dimensional displacement fully, particularly for being shifted to the cranium side, when the application external fixator was treated, must add the bone traction can be effective.
No matter 2 is A font or trapezoidal pelvis external fixator, for fracture of acetabulum without any therapeutic effect.At present, the still incompetent pelvis external fixator that solves the fracture of acetabulum reset issues simultaneously.
In addition, for fracture of acetabulum, traditional Therapeutic Method is, the lighter continues the bone traction, and weight person needs operative treatment, but operating difficulty is big, and complication is many, the adhesion of postoperative hip joint, and function is poor.
The purpose of this utility model is to avoid above-mentioned weak point of the prior art, and a kind of multi-functional pelvis external fixator is provided, and Unstable Pelvic Fracture dislocation and fracture of acetabulum are all had good therapeutic effect.
The purpose of this utility model is achieved through the following technical solutions.
This utility model by connecting rod be installed in the strap that is connected rod end and constitute.
Architectural feature of the present utility model is, described connecting rod has two, and the first is fixed on horizontal brace rod between the ala of ilium of both sides by strap; It two is to be fixed on tilting connecting rod between Ipsilateral greater trochanter and the strong side ala of ilium by strap.
The utlity model has following clear superiority.
1, this utility model is owing to adopt the triangle locate mode, tilting connecting rod in two connecting rods makes active force at the horizontal component that is decomposed into directed outside on the greater trochanter with the vertical stress component under pointing to, impel Ipsilateral half pelvis to move down, thereby make the fracture of pelvis active homing.Double side seam basin fracture of this utility model especially to the patient of cranium side displacement, need not add the bone traction.
2, this utility model can make pubofemoral ligament, iliofemoral ligament and joint capsule tension by tilting connecting rod easily, thereby fracture of acetabulum is resetted owing to the setting of tilting connecting rod.
3, compared with the prior art, this utility model is easy and simple to handle, and fixing safety is stable, after the fracture fixation, but pain relieving, early ambulant, be convenient to nursing, reduce complication, shorten the treatment hospital stays, reduce sequela, be combined shock patients, install and use this utility model control over bleeding effectively, reduce transfusion volume.The external fixation device of the fracture of pelvis reduction when this utility model can be used as open fracture of pelvis or multiple injury operative treatment equally helps patient's early rehabilitation.
Fig. 1 is this utility model user mode sketch map.
Fig. 2 is this utility model structural representation.
By the following examples, in conjunction with the accompanying drawings this utility model is further described.
Embodiment:
Referring to Fig. 1, external fixator be by connecting rod be installed in the strap that is connected rod end and constitute, connecting rod has two, the first is fixed on horizontal brace rod 3 between the both sides ala of ilium 6,2 by strap 1,5; It two is to be fixed on tilting connecting rod 8 between Ipsilateral greater trochanter 4 and the strong side ala of ilium 2 by strap 7,5.
As shown in Figure 2, each connecting rod is the left and right knuckle rod 10 that is threaded at the two ends of middle part connecting rod 9, be provided with slip mandrel 11 in the knuckle rod 10, the movable joint rod end movable joint cover 12 that is threaded, place ball stud 13 in the movable joint cover 12, slip mandrel 11 1 ends offset with the eccentric shaft 14 that is arranged in the knuckle rod, and the other end offsets with the ball stud bulb that is placed in the movable joint cover, and the ball stud tail end is fixedlyed connected with clamping plate 1,5,7.
When eccentric rotation axis 14 made it be in different angles, slip mandrel 11 produced axial displacement in knuckle rod 10, and ball stud 13 is positioned when slip mandrel 11 compresses, and when slip mandrel 11 is removed, free to rotate, and then the fixed angle of adjustment connecting rod.
In the present embodiment, the connecting thread between middle part connecting rod 9 and the left and right two ends knuckle rod 10 is reverse each other.When knuckle rod two ends, the left and right sides are positioned, rotate middle part connecting rod, the just length of tunable integer root connecting rod.
During assembling, adopt local anesthesia, epidural anesthesia or lumbar anesthesia all can.
On the bilateral ala of ilium, fix two cancellous bone screws respectively, diameter 2.7mm, long 10cm advances to follow closely angle 15-20, can horizontal brace rod be installed by strap subsequently.At the vertical inserting needle of greater trochanter, adopt two thick bone wire nails or diameter 2.7mm again, long 10cm cancellous bone screw is loaded onto tilting connecting rod.Horizontal brace rod and tilting connecting rod constitute triangle.Adjust the angle that the strap position can change horizontal brace rod and tilting connecting rod on the greater trochanter, rotate the middle part connecting rod, can change the length of connecting rod.Assistant's reduction by traction under x-ray fluoroscopy, the patient rotates the middle part connecting rod, till the satisfaction that resets.
For fracture of acetabulum or pubis fracture of the ischium, adopt the tilting connecting rod that is fixed on strong side ala of ilium and the Ipsilateral greater trochanter, become single pelvis external fixator of surveying.
For half side fracture of pelvis, need to use a complete set of external fixation device that includes horizontal brace rod and tilting connecting rod, but tilting connecting rod is 3-4 after week fixedly, when treating that posterior ring pelvic fracture and dislocation place form the fiber healing, promptly dismountable, but continue bed, utilize horizontal brace rod to add press fit, strengthen the movable generation that reduces complication of Ipsilateral hip joint.
In the practical application, can adjust the direction that the leg-of-mutton angle and the length of side change power according to different classification of fracture, thereby reach reduction of the fracture effect.As the patient of half side fracture of pelvis to the displacement of cranium side, screw is fixed on the greater trochanter below, the angle between horizontal brace rod and the tilting connecting rod is increased, thereby the increasing of decomposing force vertically downward impel Ipsilateral half pelvis to move down.Fracture of acetabulum in this way, screw are fixed on the greater trochanter top, and the angle between horizontal brace rod and the tilting connecting rod is diminished, thereby the outside decomposing force of level increases, and play the side draw.
Claims (3)
1, multi-functional pelvis external fixator, by connecting rod be installed in the strap that is connected rod end and constitute, it is characterized in that: described connecting rod has two, the first is fixed on horizontal brace rod (3) between the both sides ala of ilium (6,2) by strap (1,5); It two is to be fixed on tilting connecting rod (8) between Ipsilateral greater trochanter (4) and the strong side ala of ilium (2) by strap (7,5).
2, multi-functional pelvis external fixator according to claim 1, it is characterized in that described each connecting rod is the left and right knuckle rod (10) that is threaded at the two ends of middle part connecting rod (9), be provided with slip mandrel (11) in the knuckle rod (10), the movable joint rod end movable joint cover (12) that is threaded, place ball stud (13) in the movable joint cover (12), slip mandrel (11) one ends offset with the eccentric shaft (14) that is arranged in the knuckle rod, the other end offsets with the ball stud bulb that is placed in the movable joint cover, and the ball stud tail end is fixedlyed connected with clamping plate (1,5,7).
3, multi-functional pelvis external fixator according to claim 1 is characterized in that the connecting thread between described middle part connecting rod (9) and the left and right two ends knuckle rods (10) is reverse each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97215388 CN2300378Y (en) | 1997-04-29 | 1997-04-29 | Multi-function pelvis external fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97215388 CN2300378Y (en) | 1997-04-29 | 1997-04-29 | Multi-function pelvis external fixator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2300378Y true CN2300378Y (en) | 1998-12-16 |
Family
ID=33932568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97215388 Expired - Fee Related CN2300378Y (en) | 1997-04-29 | 1997-04-29 | Multi-function pelvis external fixator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2300378Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108078618A (en) * | 2018-02-12 | 2018-05-29 | 中国医学科学院整形外科医院 | Pelvic traction approximator |
| CN108143474A (en) * | 2017-12-27 | 2018-06-12 | 苏州大学附属第医院 | A kind of outer resting guide for being accurately positioned pelvis fracture operation |
| CN108143473A (en) * | 2017-12-27 | 2018-06-12 | 宜兴市人民医院 | A kind of outer resting guide for being accurately positioned pelvis fracture operation |
| CN109692021A (en) * | 2019-01-28 | 2019-04-30 | 青岛大学附属医院 | A kind of hip joint retractor |
-
1997
- 1997-04-29 CN CN 97215388 patent/CN2300378Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108143474A (en) * | 2017-12-27 | 2018-06-12 | 苏州大学附属第医院 | A kind of outer resting guide for being accurately positioned pelvis fracture operation |
| CN108143473A (en) * | 2017-12-27 | 2018-06-12 | 宜兴市人民医院 | A kind of outer resting guide for being accurately positioned pelvis fracture operation |
| CN108143473B (en) * | 2017-12-27 | 2020-04-10 | 蒋臻欢 | External fixation guide plate for accurate positioning pelvis fracture operation |
| CN108078618A (en) * | 2018-02-12 | 2018-05-29 | 中国医学科学院整形外科医院 | Pelvic traction approximator |
| CN108078618B (en) * | 2018-02-12 | 2024-05-24 | 中国医学科学院整形外科医院 | Pelvis traction approximator |
| CN109692021A (en) * | 2019-01-28 | 2019-04-30 | 青岛大学附属医院 | A kind of hip joint retractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |